Merge commit '122de16dd8108a59a55d30543c9f28b5f61b02d1'
authorClément Bœsch <cboesch@gopro.com>
Fri, 5 May 2017 11:53:11 +0000 (13:53 +0200)
committerClément Bœsch <cboesch@gopro.com>
Fri, 5 May 2017 12:04:30 +0000 (14:04 +0200)
* commit '122de16dd8108a59a55d30543c9f28b5f61b02d1':
  Replace cmdutils_common_opts.h by a macro

Merged-by: Clément Bœsch <cboesch@gopro.com>
1  2 
Makefile
cmdutils.h
ffmpeg_opt.c
ffplay.c
ffprobe.c
ffserver.c
tests/ref/fate/source

diff --cc Makefile
+++ b/Makefile
@@@ -56,11 -101,9 +56,10 @@@ FFLIBS-$(CONFIG_SWSCALE)    += swscal
  
  FFLIBS := avutil
  
 -DATA_FILES := $(wildcard $(SRC_PATH)/presets/*.avpreset)
 +DATA_FILES := $(wildcard $(SRC_PATH)/presets/*.ffpreset) $(SRC_PATH)/doc/ffprobe.xsd
 +EXAMPLES_FILES := $(wildcard $(SRC_PATH)/doc/examples/*.c) $(SRC_PATH)/doc/examples/Makefile $(SRC_PATH)/doc/examples/README
  
- SKIPHEADERS = cmdutils_common_opts.h                                    \
-               compat/w32pthreads.h
+ SKIPHEADERS = compat/w32pthreads.h
  
  # first so "all" becomes default target
  all: all-yes
diff --cc cmdutils.h
@@@ -206,6 -182,26 +206,59 @@@ typedef struct OptionDef 
  void show_help_options(const OptionDef *options, const char *msg, int req_flags,
                         int rej_flags, int alt_flags);
  
 -    { "loglevel",    HAS_ARG,              { .func_arg = opt_loglevel },     "set libav* logging level", "loglevel" },  \
 -    { "v",           HAS_ARG,              { .func_arg = opt_loglevel },     "set libav* logging level", "loglevel" },  \
 -    { "cpuflags",    HAS_ARG | OPT_EXPERT, { .func_arg = opt_cpuflags },     "set CPU flags mask", "mask" },            \
++#if CONFIG_OPENCL
++#define CMDUTILS_COMMON_OPTIONS_OPENCL                                                                                  \
++    { "opencl_bench", OPT_EXIT, {.func_arg = opt_opencl_bench},                                                         \
++       "run benchmark on all OpenCL devices and show results" },                                                        \
++    { "opencl_options", HAS_ARG, {.func_arg = opt_opencl},                                                              \
++       "set OpenCL environment options" },                                                                              \
++
++#else
++#define CMDUTILS_COMMON_OPTIONS_OPENCL
++#endif
++
++#if CONFIG_AVDEVICE
++#define CMDUTILS_COMMON_OPTIONS_AVDEVICE                                                                                \
++    { "sources"    , OPT_EXIT | HAS_ARG, { .func_arg = show_sources },                                                  \
++      "list sources of the input device", "device" },                                                                   \
++    { "sinks"      , OPT_EXIT | HAS_ARG, { .func_arg = show_sinks },                                                    \
++      "list sinks of the output device", "device" },                                                                    \
++
++#else
++#define CMDUTILS_COMMON_OPTIONS_AVDEVICE
++#endif
++
+ #define CMDUTILS_COMMON_OPTIONS                                                                                         \
+     { "L",           OPT_EXIT,             { .func_arg = show_license },     "show license" },                          \
+     { "h",           OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
+     { "?",           OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
+     { "help",        OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
+     { "-help",       OPT_EXIT,             { .func_arg = show_help },        "show help", "topic" },                    \
+     { "version",     OPT_EXIT,             { .func_arg = show_version },     "show version" },                          \
++    { "buildconf",   OPT_EXIT,             { .func_arg = show_buildconf },   "show build configuration" },              \
+     { "formats",     OPT_EXIT,             { .func_arg = show_formats },     "show available formats" },                \
++    { "muxers",      OPT_EXIT,             { .func_arg = show_muxers },      "show available muxers" },                 \
++    { "demuxers",    OPT_EXIT,             { .func_arg = show_demuxers },    "show available demuxers" },               \
++    { "devices",     OPT_EXIT,             { .func_arg = show_devices },     "show available devices" },                \
+     { "codecs",      OPT_EXIT,             { .func_arg = show_codecs },      "show available codecs" },                 \
+     { "decoders",    OPT_EXIT,             { .func_arg = show_decoders },    "show available decoders" },               \
+     { "encoders",    OPT_EXIT,             { .func_arg = show_encoders },    "show available encoders" },               \
+     { "bsfs",        OPT_EXIT,             { .func_arg = show_bsfs },        "show available bit stream filters" },     \
+     { "protocols",   OPT_EXIT,             { .func_arg = show_protocols },   "show available protocols" },              \
+     { "filters",     OPT_EXIT,             { .func_arg = show_filters },     "show available filters" },                \
+     { "pix_fmts",    OPT_EXIT,             { .func_arg = show_pix_fmts },    "show available pixel formats" },          \
++    { "layouts",     OPT_EXIT,             { .func_arg = show_layouts },     "show standard channel layouts" },         \
+     { "sample_fmts", OPT_EXIT,             { .func_arg = show_sample_fmts }, "show available audio sample formats" },   \
++    { "colors",      OPT_EXIT,             { .func_arg = show_colors },      "show available color names" },            \
++    { "loglevel",    HAS_ARG,              { .func_arg = opt_loglevel },     "set logging level", "loglevel" },         \
++    { "v",           HAS_ARG,              { .func_arg = opt_loglevel },     "set logging level", "loglevel" },         \
++    { "report",      0,                    { (void*)opt_report },            "generate a report" },                     \
++    { "max_alloc",   HAS_ARG,              { .func_arg = opt_max_alloc },    "set maximum size of a single allocated block", "bytes" }, \
++    { "cpuflags",    HAS_ARG | OPT_EXPERT, { .func_arg = opt_cpuflags },     "force specific cpu flags", "flags" },     \
++    { "hide_banner", OPT_BOOL | OPT_EXPERT, {&hide_banner},     "do not show program banner", "hide_banner" },          \
++    CMDUTILS_COMMON_OPTIONS_OPENCL                                                                                      \
++    CMDUTILS_COMMON_OPTIONS_AVDEVICE                                                                                    \
  /**
   * Show help for all options with given flags in class and all its
   * children.
diff --cc ffmpeg_opt.c
index e73a610,0000000..ce85f32
mode 100644,000000..100644
--- /dev/null
@@@ -1,3669 -1,0 +1,3669 @@@
- #include "cmdutils_common_opts.h"
 +/*
 + * ffmpeg option parsing
 + *
 + * This file is part of FFmpeg.
 + *
 + * FFmpeg is free software; you can redistribute it and/or
 + * modify it under the terms of the GNU Lesser General Public
 + * License as published by the Free Software Foundation; either
 + * version 2.1 of the License, or (at your option) any later version.
 + *
 + * FFmpeg is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 + * Lesser General Public License for more details.
 + *
 + * You should have received a copy of the GNU Lesser General Public
 + * License along with FFmpeg; if not, write to the Free Software
 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 + */
 +
 +#include <stdint.h>
 +
 +#include "ffmpeg.h"
 +#include "cmdutils.h"
 +
 +#include "libavformat/avformat.h"
 +
 +#include "libavcodec/avcodec.h"
 +
 +#include "libavfilter/avfilter.h"
 +
 +#include "libavutil/avassert.h"
 +#include "libavutil/avstring.h"
 +#include "libavutil/avutil.h"
 +#include "libavutil/channel_layout.h"
 +#include "libavutil/intreadwrite.h"
 +#include "libavutil/fifo.h"
 +#include "libavutil/mathematics.h"
 +#include "libavutil/opt.h"
 +#include "libavutil/parseutils.h"
 +#include "libavutil/pixdesc.h"
 +#include "libavutil/pixfmt.h"
 +
 +#define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
 +
 +#define MATCH_PER_STREAM_OPT(name, type, outvar, fmtctx, st)\
 +{\
 +    int i, ret;\
 +    for (i = 0; i < o->nb_ ## name; i++) {\
 +        char *spec = o->name[i].specifier;\
 +        if ((ret = check_stream_specifier(fmtctx, st, spec)) > 0)\
 +            outvar = o->name[i].u.type;\
 +        else if (ret < 0)\
 +            exit_program(1);\
 +    }\
 +}
 +
 +#define MATCH_PER_TYPE_OPT(name, type, outvar, fmtctx, mediatype)\
 +{\
 +    int i;\
 +    for (i = 0; i < o->nb_ ## name; i++) {\
 +        char *spec = o->name[i].specifier;\
 +        if (!strcmp(spec, mediatype))\
 +            outvar = o->name[i].u.type;\
 +    }\
 +}
 +
 +const HWAccel hwaccels[] = {
 +#if HAVE_VDPAU_X11
 +    { "vdpau", vdpau_init, HWACCEL_VDPAU, AV_PIX_FMT_VDPAU },
 +#endif
 +#if HAVE_DXVA2_LIB
 +    { "dxva2", dxva2_init, HWACCEL_DXVA2, AV_PIX_FMT_DXVA2_VLD },
 +#endif
 +#if CONFIG_VDA
 +    { "vda",   videotoolbox_init,   HWACCEL_VDA,   AV_PIX_FMT_VDA },
 +#endif
 +#if CONFIG_VIDEOTOOLBOX
 +    { "videotoolbox",   videotoolbox_init,   HWACCEL_VIDEOTOOLBOX,   AV_PIX_FMT_VIDEOTOOLBOX },
 +#endif
 +#if CONFIG_LIBMFX
 +    { "qsv",   qsv_init,   HWACCEL_QSV,   AV_PIX_FMT_QSV },
 +#endif
 +#if CONFIG_VAAPI
 +    { "vaapi", vaapi_decode_init, HWACCEL_VAAPI, AV_PIX_FMT_VAAPI },
 +#endif
 +#if CONFIG_CUVID
 +    { "cuvid", cuvid_init, HWACCEL_CUVID, AV_PIX_FMT_CUDA },
 +#endif
 +    { 0 },
 +};
 +int hwaccel_lax_profile_check = 0;
 +AVBufferRef *hw_device_ctx;
 +
 +char *vstats_filename;
 +char *sdp_filename;
 +
 +float audio_drift_threshold = 0.1;
 +float dts_delta_threshold   = 10;
 +float dts_error_threshold   = 3600*30;
 +
 +int audio_volume      = 256;
 +int audio_sync_method = 0;
 +int video_sync_method = VSYNC_AUTO;
 +float frame_drop_threshold = 0;
 +int do_deinterlace    = 0;
 +int do_benchmark      = 0;
 +int do_benchmark_all  = 0;
 +int do_hex_dump       = 0;
 +int do_pkt_dump       = 0;
 +int copy_ts           = 0;
 +int start_at_zero     = 0;
 +int copy_tb           = -1;
 +int debug_ts          = 0;
 +int exit_on_error     = 0;
 +int abort_on_flags    = 0;
 +int print_stats       = -1;
 +int qp_hist           = 0;
 +int stdin_interaction = 1;
 +int frame_bits_per_raw_sample = 0;
 +float max_error_rate  = 2.0/3;
 +int filter_nbthreads = 0;
 +int filter_complex_nbthreads = 0;
 +int vstats_version = 2;
 +
 +
 +static int intra_only         = 0;
 +static int file_overwrite     = 0;
 +static int no_file_overwrite  = 0;
 +static int do_psnr            = 0;
 +static int input_sync;
 +static int override_ffserver  = 0;
 +static int input_stream_potentially_available = 0;
 +static int ignore_unknown_streams = 0;
 +static int copy_unknown_streams = 0;
 +
 +static void uninit_options(OptionsContext *o)
 +{
 +    const OptionDef *po = options;
 +    int i;
 +
 +    /* all OPT_SPEC and OPT_STRING can be freed in generic way */
 +    while (po->name) {
 +        void *dst = (uint8_t*)o + po->u.off;
 +
 +        if (po->flags & OPT_SPEC) {
 +            SpecifierOpt **so = dst;
 +            int i, *count = (int*)(so + 1);
 +            for (i = 0; i < *count; i++) {
 +                av_freep(&(*so)[i].specifier);
 +                if (po->flags & OPT_STRING)
 +                    av_freep(&(*so)[i].u.str);
 +            }
 +            av_freep(so);
 +            *count = 0;
 +        } else if (po->flags & OPT_OFFSET && po->flags & OPT_STRING)
 +            av_freep(dst);
 +        po++;
 +    }
 +
 +    for (i = 0; i < o->nb_stream_maps; i++)
 +        av_freep(&o->stream_maps[i].linklabel);
 +    av_freep(&o->stream_maps);
 +    av_freep(&o->audio_channel_maps);
 +    av_freep(&o->streamid_map);
 +    av_freep(&o->attachments);
 +}
 +
 +static void init_options(OptionsContext *o)
 +{
 +    memset(o, 0, sizeof(*o));
 +
 +    o->stop_time = INT64_MAX;
 +    o->mux_max_delay  = 0.7;
 +    o->start_time     = AV_NOPTS_VALUE;
 +    o->start_time_eof = AV_NOPTS_VALUE;
 +    o->recording_time = INT64_MAX;
 +    o->limit_filesize = UINT64_MAX;
 +    o->chapters_input_file = INT_MAX;
 +    o->accurate_seek  = 1;
 +}
 +
 +static int show_hwaccels(void *optctx, const char *opt, const char *arg)
 +{
 +    int i;
 +
 +    printf("Hardware acceleration methods:\n");
 +    for (i = 0; hwaccels[i].name; i++) {
 +        printf("%s\n", hwaccels[i].name);
 +    }
 +    printf("\n");
 +    return 0;
 +}
 +
 +/* return a copy of the input with the stream specifiers removed from the keys */
 +static AVDictionary *strip_specifiers(AVDictionary *dict)
 +{
 +    AVDictionaryEntry *e = NULL;
 +    AVDictionary    *ret = NULL;
 +
 +    while ((e = av_dict_get(dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
 +        char *p = strchr(e->key, ':');
 +
 +        if (p)
 +            *p = 0;
 +        av_dict_set(&ret, e->key, e->value, 0);
 +        if (p)
 +            *p = ':';
 +    }
 +    return ret;
 +}
 +
 +static int opt_abort_on(void *optctx, const char *opt, const char *arg)
 +{
 +    static const AVOption opts[] = {
 +        { "abort_on"        , NULL, 0, AV_OPT_TYPE_FLAGS, { .i64 = 0 }, INT64_MIN, INT64_MAX, .unit = "flags" },
 +        { "empty_output"    , NULL, 0, AV_OPT_TYPE_CONST, { .i64 = ABORT_ON_FLAG_EMPTY_OUTPUT     },    .unit = "flags" },
 +        { NULL },
 +    };
 +    static const AVClass class = {
 +        .class_name = "",
 +        .item_name  = av_default_item_name,
 +        .option     = opts,
 +        .version    = LIBAVUTIL_VERSION_INT,
 +    };
 +    const AVClass *pclass = &class;
 +
 +    return av_opt_eval_flags(&pclass, &opts[0], arg, &abort_on_flags);
 +}
 +
 +static int opt_sameq(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_ERROR, "Option '%s' was removed. "
 +           "If you are looking for an option to preserve the quality (which is not "
 +           "what -%s was for), use -qscale 0 or an equivalent quality factor option.\n",
 +           opt, opt);
 +    return AVERROR(EINVAL);
 +}
 +
 +static int opt_video_channel(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -channel.\n");
 +    return opt_default(optctx, "channel", arg);
 +}
 +
 +static int opt_video_standard(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "This option is deprecated, use -standard.\n");
 +    return opt_default(optctx, "standard", arg);
 +}
 +
 +static int opt_audio_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:a", arg, options);
 +}
 +
 +static int opt_video_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:v", arg, options);
 +}
 +
 +static int opt_subtitle_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:s", arg, options);
 +}
 +
 +static int opt_data_codec(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "codec:d", arg, options);
 +}
 +
 +static int opt_map(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    StreamMap *m = NULL;
 +    int i, negative = 0, file_idx;
 +    int sync_file_idx = -1, sync_stream_idx = 0;
 +    char *p, *sync;
 +    char *map;
 +    char *allow_unused;
 +
 +    if (*arg == '-') {
 +        negative = 1;
 +        arg++;
 +    }
 +    map = av_strdup(arg);
 +    if (!map)
 +        return AVERROR(ENOMEM);
 +
 +    /* parse sync stream first, just pick first matching stream */
 +    if (sync = strchr(map, ',')) {
 +        *sync = 0;
 +        sync_file_idx = strtol(sync + 1, &sync, 0);
 +        if (sync_file_idx >= nb_input_files || sync_file_idx < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid sync file index: %d.\n", sync_file_idx);
 +            exit_program(1);
 +        }
 +        if (*sync)
 +            sync++;
 +        for (i = 0; i < input_files[sync_file_idx]->nb_streams; i++)
 +            if (check_stream_specifier(input_files[sync_file_idx]->ctx,
 +                                       input_files[sync_file_idx]->ctx->streams[i], sync) == 1) {
 +                sync_stream_idx = i;
 +                break;
 +            }
 +        if (i == input_files[sync_file_idx]->nb_streams) {
 +            av_log(NULL, AV_LOG_FATAL, "Sync stream specification in map %s does not "
 +                                       "match any streams.\n", arg);
 +            exit_program(1);
 +        }
 +    }
 +
 +
 +    if (map[0] == '[') {
 +        /* this mapping refers to lavfi output */
 +        const char *c = map + 1;
 +        GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
 +        m = &o->stream_maps[o->nb_stream_maps - 1];
 +        m->linklabel = av_get_token(&c, "]");
 +        if (!m->linklabel) {
 +            av_log(NULL, AV_LOG_ERROR, "Invalid output link label: %s.\n", map);
 +            exit_program(1);
 +        }
 +    } else {
 +        if (allow_unused = strchr(map, '?'))
 +            *allow_unused = 0;
 +        file_idx = strtol(map, &p, 0);
 +        if (file_idx >= nb_input_files || file_idx < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid input file index: %d.\n", file_idx);
 +            exit_program(1);
 +        }
 +        if (negative)
 +            /* disable some already defined maps */
 +            for (i = 0; i < o->nb_stream_maps; i++) {
 +                m = &o->stream_maps[i];
 +                if (file_idx == m->file_index &&
 +                    check_stream_specifier(input_files[m->file_index]->ctx,
 +                                           input_files[m->file_index]->ctx->streams[m->stream_index],
 +                                           *p == ':' ? p + 1 : p) > 0)
 +                    m->disabled = 1;
 +            }
 +        else
 +            for (i = 0; i < input_files[file_idx]->nb_streams; i++) {
 +                if (check_stream_specifier(input_files[file_idx]->ctx, input_files[file_idx]->ctx->streams[i],
 +                            *p == ':' ? p + 1 : p) <= 0)
 +                    continue;
 +                GROW_ARRAY(o->stream_maps, o->nb_stream_maps);
 +                m = &o->stream_maps[o->nb_stream_maps - 1];
 +
 +                m->file_index   = file_idx;
 +                m->stream_index = i;
 +
 +                if (sync_file_idx >= 0) {
 +                    m->sync_file_index   = sync_file_idx;
 +                    m->sync_stream_index = sync_stream_idx;
 +                } else {
 +                    m->sync_file_index   = file_idx;
 +                    m->sync_stream_index = i;
 +                }
 +            }
 +    }
 +
 +    if (!m) {
 +        if (allow_unused) {
 +            av_log(NULL, AV_LOG_VERBOSE, "Stream map '%s' matches no streams; ignoring.\n", arg);
 +        } else {
 +            av_log(NULL, AV_LOG_FATAL, "Stream map '%s' matches no streams.\n"
 +                                       "To ignore this, add a trailing '?' to the map.\n", arg);
 +            exit_program(1);
 +        }
 +    }
 +
 +    av_freep(&map);
 +    return 0;
 +}
 +
 +static int opt_attach(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    GROW_ARRAY(o->attachments, o->nb_attachments);
 +    o->attachments[o->nb_attachments - 1] = arg;
 +    return 0;
 +}
 +
 +static int opt_map_channel(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    int n;
 +    AVStream *st;
 +    AudioChannelMap *m;
 +
 +    GROW_ARRAY(o->audio_channel_maps, o->nb_audio_channel_maps);
 +    m = &o->audio_channel_maps[o->nb_audio_channel_maps - 1];
 +
 +    /* muted channel syntax */
 +    n = sscanf(arg, "%d:%d.%d", &m->channel_idx, &m->ofile_idx, &m->ostream_idx);
 +    if ((n == 1 || n == 3) && m->channel_idx == -1) {
 +        m->file_idx = m->stream_idx = -1;
 +        if (n == 1)
 +            m->ofile_idx = m->ostream_idx = -1;
 +        return 0;
 +    }
 +
 +    /* normal syntax */
 +    n = sscanf(arg, "%d.%d.%d:%d.%d",
 +               &m->file_idx,  &m->stream_idx, &m->channel_idx,
 +               &m->ofile_idx, &m->ostream_idx);
 +
 +    if (n != 3 && n != 5) {
 +        av_log(NULL, AV_LOG_FATAL, "Syntax error, mapchan usage: "
 +               "[file.stream.channel|-1][:syncfile:syncstream]\n");
 +        exit_program(1);
 +    }
 +
 +    if (n != 5) // only file.stream.channel specified
 +        m->ofile_idx = m->ostream_idx = -1;
 +
 +    /* check input */
 +    if (m->file_idx < 0 || m->file_idx >= nb_input_files) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file index: %d\n",
 +               m->file_idx);
 +        exit_program(1);
 +    }
 +    if (m->stream_idx < 0 ||
 +        m->stream_idx >= input_files[m->file_idx]->nb_streams) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid input file stream index #%d.%d\n",
 +               m->file_idx, m->stream_idx);
 +        exit_program(1);
 +    }
 +    st = input_files[m->file_idx]->ctx->streams[m->stream_idx];
 +    if (st->codecpar->codec_type != AVMEDIA_TYPE_AUDIO) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: stream #%d.%d is not an audio stream.\n",
 +               m->file_idx, m->stream_idx);
 +        exit_program(1);
 +    }
 +    if (m->channel_idx < 0 || m->channel_idx >= st->codecpar->channels) {
 +        av_log(NULL, AV_LOG_FATAL, "mapchan: invalid audio channel #%d.%d.%d\n",
 +               m->file_idx, m->stream_idx, m->channel_idx);
 +        exit_program(1);
 +    }
 +    return 0;
 +}
 +
 +static int opt_sdp_file(void *optctx, const char *opt, const char *arg)
 +{
 +    av_free(sdp_filename);
 +    sdp_filename = av_strdup(arg);
 +    return 0;
 +}
 +
 +#if CONFIG_VAAPI
 +static int opt_vaapi_device(void *optctx, const char *opt, const char *arg)
 +{
 +    int err;
 +    err = vaapi_device_init(arg);
 +    if (err < 0)
 +        exit_program(1);
 +    return 0;
 +}
 +#endif
 +
 +/**
 + * Parse a metadata specifier passed as 'arg' parameter.
 + * @param arg  metadata string to parse
 + * @param type metadata type is written here -- g(lobal)/s(tream)/c(hapter)/p(rogram)
 + * @param index for type c/p, chapter/program index is written here
 + * @param stream_spec for type s, the stream specifier is written here
 + */
 +static void parse_meta_type(char *arg, char *type, int *index, const char **stream_spec)
 +{
 +    if (*arg) {
 +        *type = *arg;
 +        switch (*arg) {
 +        case 'g':
 +            break;
 +        case 's':
 +            if (*(++arg) && *arg != ':') {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", arg);
 +                exit_program(1);
 +            }
 +            *stream_spec = *arg == ':' ? arg + 1 : "";
 +            break;
 +        case 'c':
 +        case 'p':
 +            if (*(++arg) == ':')
 +                *index = strtol(++arg, NULL, 0);
 +            break;
 +        default:
 +            av_log(NULL, AV_LOG_FATAL, "Invalid metadata type %c.\n", *arg);
 +            exit_program(1);
 +        }
 +    } else
 +        *type = 'g';
 +}
 +
 +static int copy_metadata(char *outspec, char *inspec, AVFormatContext *oc, AVFormatContext *ic, OptionsContext *o)
 +{
 +    AVDictionary **meta_in = NULL;
 +    AVDictionary **meta_out = NULL;
 +    int i, ret = 0;
 +    char type_in, type_out;
 +    const char *istream_spec = NULL, *ostream_spec = NULL;
 +    int idx_in = 0, idx_out = 0;
 +
 +    parse_meta_type(inspec,  &type_in,  &idx_in,  &istream_spec);
 +    parse_meta_type(outspec, &type_out, &idx_out, &ostream_spec);
 +
 +    if (!ic) {
 +        if (type_out == 'g' || !*outspec)
 +            o->metadata_global_manual = 1;
 +        if (type_out == 's' || !*outspec)
 +            o->metadata_streams_manual = 1;
 +        if (type_out == 'c' || !*outspec)
 +            o->metadata_chapters_manual = 1;
 +        return 0;
 +    }
 +
 +    if (type_in == 'g' || type_out == 'g')
 +        o->metadata_global_manual = 1;
 +    if (type_in == 's' || type_out == 's')
 +        o->metadata_streams_manual = 1;
 +    if (type_in == 'c' || type_out == 'c')
 +        o->metadata_chapters_manual = 1;
 +
 +    /* ic is NULL when just disabling automatic mappings */
 +    if (!ic)
 +        return 0;
 +
 +#define METADATA_CHECK_INDEX(index, nb_elems, desc)\
 +    if ((index) < 0 || (index) >= (nb_elems)) {\
 +        av_log(NULL, AV_LOG_FATAL, "Invalid %s index %d while processing metadata maps.\n",\
 +                (desc), (index));\
 +        exit_program(1);\
 +    }
 +
 +#define SET_DICT(type, meta, context, index)\
 +        switch (type) {\
 +        case 'g':\
 +            meta = &context->metadata;\
 +            break;\
 +        case 'c':\
 +            METADATA_CHECK_INDEX(index, context->nb_chapters, "chapter")\
 +            meta = &context->chapters[index]->metadata;\
 +            break;\
 +        case 'p':\
 +            METADATA_CHECK_INDEX(index, context->nb_programs, "program")\
 +            meta = &context->programs[index]->metadata;\
 +            break;\
 +        case 's':\
 +            break; /* handled separately below */ \
 +        default: av_assert0(0);\
 +        }\
 +
 +    SET_DICT(type_in, meta_in, ic, idx_in);
 +    SET_DICT(type_out, meta_out, oc, idx_out);
 +
 +    /* for input streams choose first matching stream */
 +    if (type_in == 's') {
 +        for (i = 0; i < ic->nb_streams; i++) {
 +            if ((ret = check_stream_specifier(ic, ic->streams[i], istream_spec)) > 0) {
 +                meta_in = &ic->streams[i]->metadata;
 +                break;
 +            } else if (ret < 0)
 +                exit_program(1);
 +        }
 +        if (!meta_in) {
 +            av_log(NULL, AV_LOG_FATAL, "Stream specifier %s does not match  any streams.\n", istream_spec);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (type_out == 's') {
 +        for (i = 0; i < oc->nb_streams; i++) {
 +            if ((ret = check_stream_specifier(oc, oc->streams[i], ostream_spec)) > 0) {
 +                meta_out = &oc->streams[i]->metadata;
 +                av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
 +            } else if (ret < 0)
 +                exit_program(1);
 +        }
 +    } else
 +        av_dict_copy(meta_out, *meta_in, AV_DICT_DONT_OVERWRITE);
 +
 +    return 0;
 +}
 +
 +static int opt_recording_timestamp(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char buf[128];
 +    int64_t recording_timestamp = parse_time_or_die(opt, arg, 0) / 1E6;
 +    struct tm time = *gmtime((time_t*)&recording_timestamp);
 +    if (!strftime(buf, sizeof(buf), "creation_time=%Y-%m-%dT%H:%M:%S%z", &time))
 +        return -1;
 +    parse_option(o, "metadata", buf, options);
 +
 +    av_log(NULL, AV_LOG_WARNING, "%s is deprecated, set the 'creation_time' metadata "
 +                                 "tag instead.\n", opt);
 +    return 0;
 +}
 +
 +static AVCodec *find_codec_or_die(const char *name, enum AVMediaType type, int encoder)
 +{
 +    const AVCodecDescriptor *desc;
 +    const char *codec_string = encoder ? "encoder" : "decoder";
 +    AVCodec *codec;
 +
 +    codec = encoder ?
 +        avcodec_find_encoder_by_name(name) :
 +        avcodec_find_decoder_by_name(name);
 +
 +    if (!codec && (desc = avcodec_descriptor_get_by_name(name))) {
 +        codec = encoder ? avcodec_find_encoder(desc->id) :
 +                          avcodec_find_decoder(desc->id);
 +        if (codec)
 +            av_log(NULL, AV_LOG_VERBOSE, "Matched %s '%s' for codec '%s'.\n",
 +                   codec_string, codec->name, desc->name);
 +    }
 +
 +    if (!codec) {
 +        av_log(NULL, AV_LOG_FATAL, "Unknown %s '%s'\n", codec_string, name);
 +        exit_program(1);
 +    }
 +    if (codec->type != type) {
 +        av_log(NULL, AV_LOG_FATAL, "Invalid %s type '%s'\n", codec_string, name);
 +        exit_program(1);
 +    }
 +    return codec;
 +}
 +
 +static AVCodec *choose_decoder(OptionsContext *o, AVFormatContext *s, AVStream *st)
 +{
 +    char *codec_name = NULL;
 +
 +    MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, st);
 +    if (codec_name) {
 +        AVCodec *codec = find_codec_or_die(codec_name, st->codecpar->codec_type, 0);
 +        st->codecpar->codec_id = codec->id;
 +        return codec;
 +    } else
 +        return avcodec_find_decoder(st->codecpar->codec_id);
 +}
 +
 +/* Add all the streams from the given input file to the global
 + * list of input streams. */
 +static void add_input_streams(OptionsContext *o, AVFormatContext *ic)
 +{
 +    int i, ret;
 +
 +    for (i = 0; i < ic->nb_streams; i++) {
 +        AVStream *st = ic->streams[i];
 +        AVCodecParameters *par = st->codecpar;
 +        InputStream *ist = av_mallocz(sizeof(*ist));
 +        char *framerate = NULL, *hwaccel = NULL, *hwaccel_device = NULL;
 +        char *hwaccel_output_format = NULL;
 +        char *codec_tag = NULL;
 +        char *next;
 +        char *discard_str = NULL;
 +        const AVClass *cc = avcodec_get_class();
 +        const AVOption *discard_opt = av_opt_find(&cc, "skip_frame", NULL, 0, 0);
 +
 +        if (!ist)
 +            exit_program(1);
 +
 +        GROW_ARRAY(input_streams, nb_input_streams);
 +        input_streams[nb_input_streams - 1] = ist;
 +
 +        ist->st = st;
 +        ist->file_index = nb_input_files;
 +        ist->discard = 1;
 +        st->discard  = AVDISCARD_ALL;
 +        ist->nb_samples = 0;
 +        ist->min_pts = INT64_MAX;
 +        ist->max_pts = INT64_MIN;
 +
 +        ist->ts_scale = 1.0;
 +        MATCH_PER_STREAM_OPT(ts_scale, dbl, ist->ts_scale, ic, st);
 +
 +        ist->autorotate = 1;
 +        MATCH_PER_STREAM_OPT(autorotate, i, ist->autorotate, ic, st);
 +
 +        MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, ic, st);
 +        if (codec_tag) {
 +            uint32_t tag = strtol(codec_tag, &next, 0);
 +            if (*next)
 +                tag = AV_RL32(codec_tag);
 +            st->codecpar->codec_tag = tag;
 +        }
 +
 +        ist->dec = choose_decoder(o, ic, st);
 +        ist->decoder_opts = filter_codec_opts(o->g->codec_opts, ist->st->codecpar->codec_id, ic, st, ist->dec);
 +
 +        ist->reinit_filters = -1;
 +        MATCH_PER_STREAM_OPT(reinit_filters, i, ist->reinit_filters, ic, st);
 +
 +        MATCH_PER_STREAM_OPT(discard, str, discard_str, ic, st);
 +        ist->user_set_discard = AVDISCARD_NONE;
 +        if (discard_str && av_opt_eval_int(&cc, discard_opt, discard_str, &ist->user_set_discard) < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error parsing discard %s.\n",
 +                    discard_str);
 +            exit_program(1);
 +        }
 +
 +        ist->filter_in_rescale_delta_last = AV_NOPTS_VALUE;
 +
 +        ist->dec_ctx = avcodec_alloc_context3(ist->dec);
 +        if (!ist->dec_ctx) {
 +            av_log(NULL, AV_LOG_ERROR, "Error allocating the decoder context.\n");
 +            exit_program(1);
 +        }
 +
 +        ret = avcodec_parameters_to_context(ist->dec_ctx, par);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
 +            exit_program(1);
 +        }
 +
 +        switch (par->codec_type) {
 +        case AVMEDIA_TYPE_VIDEO:
 +            if(!ist->dec)
 +                ist->dec = avcodec_find_decoder(par->codec_id);
 +#if FF_API_EMU_EDGE
 +            if (av_codec_get_lowres(st->codec)) {
 +                av_codec_set_lowres(ist->dec_ctx, av_codec_get_lowres(st->codec));
 +                ist->dec_ctx->width  = st->codec->width;
 +                ist->dec_ctx->height = st->codec->height;
 +                ist->dec_ctx->coded_width  = st->codec->coded_width;
 +                ist->dec_ctx->coded_height = st->codec->coded_height;
 +                ist->dec_ctx->flags |= CODEC_FLAG_EMU_EDGE;
 +            }
 +#endif
 +
 +            // avformat_find_stream_info() doesn't set this for us anymore.
 +            ist->dec_ctx->framerate = st->avg_frame_rate;
 +
 +            MATCH_PER_STREAM_OPT(frame_rates, str, framerate, ic, st);
 +            if (framerate && av_parse_video_rate(&ist->framerate,
 +                                                 framerate) < 0) {
 +                av_log(NULL, AV_LOG_ERROR, "Error parsing framerate %s.\n",
 +                       framerate);
 +                exit_program(1);
 +            }
 +
 +            ist->top_field_first = -1;
 +            MATCH_PER_STREAM_OPT(top_field_first, i, ist->top_field_first, ic, st);
 +
 +            MATCH_PER_STREAM_OPT(hwaccels, str, hwaccel, ic, st);
 +            if (hwaccel) {
 +                if (!strcmp(hwaccel, "none"))
 +                    ist->hwaccel_id = HWACCEL_NONE;
 +                else if (!strcmp(hwaccel, "auto"))
 +                    ist->hwaccel_id = HWACCEL_AUTO;
 +                else {
 +                    int i;
 +                    for (i = 0; hwaccels[i].name; i++) {
 +                        if (!strcmp(hwaccels[i].name, hwaccel)) {
 +                            ist->hwaccel_id = hwaccels[i].id;
 +                            break;
 +                        }
 +                    }
 +
 +                    if (!ist->hwaccel_id) {
 +                        av_log(NULL, AV_LOG_FATAL, "Unrecognized hwaccel: %s.\n",
 +                               hwaccel);
 +                        av_log(NULL, AV_LOG_FATAL, "Supported hwaccels: ");
 +                        for (i = 0; hwaccels[i].name; i++)
 +                            av_log(NULL, AV_LOG_FATAL, "%s ", hwaccels[i].name);
 +                        av_log(NULL, AV_LOG_FATAL, "\n");
 +                        exit_program(1);
 +                    }
 +                }
 +            }
 +
 +            MATCH_PER_STREAM_OPT(hwaccel_devices, str, hwaccel_device, ic, st);
 +            if (hwaccel_device) {
 +                ist->hwaccel_device = av_strdup(hwaccel_device);
 +                if (!ist->hwaccel_device)
 +                    exit_program(1);
 +            }
 +
 +            MATCH_PER_STREAM_OPT(hwaccel_output_formats, str,
 +                                 hwaccel_output_format, ic, st);
 +            if (hwaccel_output_format) {
 +                ist->hwaccel_output_format = av_get_pix_fmt(hwaccel_output_format);
 +                if (ist->hwaccel_output_format == AV_PIX_FMT_NONE) {
 +                    av_log(NULL, AV_LOG_FATAL, "Unrecognised hwaccel output "
 +                           "format: %s", hwaccel_output_format);
 +                }
 +            } else {
 +                ist->hwaccel_output_format = AV_PIX_FMT_NONE;
 +            }
 +
 +            ist->hwaccel_pix_fmt = AV_PIX_FMT_NONE;
 +
 +            break;
 +        case AVMEDIA_TYPE_AUDIO:
 +            ist->guess_layout_max = INT_MAX;
 +            MATCH_PER_STREAM_OPT(guess_layout_max, i, ist->guess_layout_max, ic, st);
 +            guess_input_channel_layout(ist);
 +            break;
 +        case AVMEDIA_TYPE_DATA:
 +        case AVMEDIA_TYPE_SUBTITLE: {
 +            char *canvas_size = NULL;
 +            if(!ist->dec)
 +                ist->dec = avcodec_find_decoder(par->codec_id);
 +            MATCH_PER_STREAM_OPT(fix_sub_duration, i, ist->fix_sub_duration, ic, st);
 +            MATCH_PER_STREAM_OPT(canvas_sizes, str, canvas_size, ic, st);
 +            if (canvas_size &&
 +                av_parse_video_size(&ist->dec_ctx->width, &ist->dec_ctx->height, canvas_size) < 0) {
 +                av_log(NULL, AV_LOG_FATAL, "Invalid canvas size: %s.\n", canvas_size);
 +                exit_program(1);
 +            }
 +            break;
 +        }
 +        case AVMEDIA_TYPE_ATTACHMENT:
 +        case AVMEDIA_TYPE_UNKNOWN:
 +            break;
 +        default:
 +            abort();
 +        }
 +
 +        ret = avcodec_parameters_from_context(par, ist->dec_ctx);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error initializing the decoder context.\n");
 +            exit_program(1);
 +        }
 +    }
 +}
 +
 +static void assert_file_overwrite(const char *filename)
 +{
 +    if (file_overwrite && no_file_overwrite) {
 +        fprintf(stderr, "Error, both -y and -n supplied. Exiting.\n");
 +        exit_program(1);
 +    }
 +
 +    if (!file_overwrite) {
 +        const char *proto_name = avio_find_protocol_name(filename);
 +        if (proto_name && !strcmp(proto_name, "file") && avio_check(filename, 0) == 0) {
 +            if (stdin_interaction && !no_file_overwrite) {
 +                fprintf(stderr,"File '%s' already exists. Overwrite ? [y/N] ", filename);
 +                fflush(stderr);
 +                term_exit();
 +                signal(SIGINT, SIG_DFL);
 +                if (!read_yesno()) {
 +                    av_log(NULL, AV_LOG_FATAL, "Not overwriting - exiting\n");
 +                    exit_program(1);
 +                }
 +                term_init();
 +            }
 +            else {
 +                av_log(NULL, AV_LOG_FATAL, "File '%s' already exists. Exiting.\n", filename);
 +                exit_program(1);
 +            }
 +        }
 +    }
 +}
 +
 +static void dump_attachment(AVStream *st, const char *filename)
 +{
 +    int ret;
 +    AVIOContext *out = NULL;
 +    AVDictionaryEntry *e;
 +
 +    if (!st->codecpar->extradata_size) {
 +        av_log(NULL, AV_LOG_WARNING, "No extradata to dump in stream #%d:%d.\n",
 +               nb_input_files - 1, st->index);
 +        return;
 +    }
 +    if (!*filename && (e = av_dict_get(st->metadata, "filename", NULL, 0)))
 +        filename = e->value;
 +    if (!*filename) {
 +        av_log(NULL, AV_LOG_FATAL, "No filename specified and no 'filename' tag"
 +               "in stream #%d:%d.\n", nb_input_files - 1, st->index);
 +        exit_program(1);
 +    }
 +
 +    assert_file_overwrite(filename);
 +
 +    if ((ret = avio_open2(&out, filename, AVIO_FLAG_WRITE, &int_cb, NULL)) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not open file %s for writing.\n",
 +               filename);
 +        exit_program(1);
 +    }
 +
 +    avio_write(out, st->codecpar->extradata, st->codecpar->extradata_size);
 +    avio_flush(out);
 +    avio_close(out);
 +}
 +
 +static int open_input_file(OptionsContext *o, const char *filename)
 +{
 +    InputFile *f;
 +    AVFormatContext *ic;
 +    AVInputFormat *file_iformat = NULL;
 +    int err, i, ret;
 +    int64_t timestamp;
 +    AVDictionary **opts;
 +    AVDictionary *unused_opts = NULL;
 +    AVDictionaryEntry *e = NULL;
 +    int orig_nb_streams;                     // number of streams before avformat_find_stream_info
 +    char *   video_codec_name = NULL;
 +    char *   audio_codec_name = NULL;
 +    char *subtitle_codec_name = NULL;
 +    char *    data_codec_name = NULL;
 +    int scan_all_pmts_set = 0;
 +
 +    if (o->format) {
 +        if (!(file_iformat = av_find_input_format(o->format))) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown input format: '%s'\n", o->format);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (!strcmp(filename, "-"))
 +        filename = "pipe:";
 +
 +    stdin_interaction &= strncmp(filename, "pipe:", 5) &&
 +                         strcmp(filename, "/dev/stdin");
 +
 +    /* get default parameters from command line */
 +    ic = avformat_alloc_context();
 +    if (!ic) {
 +        print_error(filename, AVERROR(ENOMEM));
 +        exit_program(1);
 +    }
 +    ic->flags |= AVFMT_FLAG_KEEP_SIDE_DATA;
 +    if (o->nb_audio_sample_rate) {
 +        av_dict_set_int(&o->g->format_opts, "sample_rate", o->audio_sample_rate[o->nb_audio_sample_rate - 1].u.i, 0);
 +    }
 +    if (o->nb_audio_channels) {
 +        /* because we set audio_channels based on both the "ac" and
 +         * "channel_layout" options, we need to check that the specified
 +         * demuxer actually has the "channels" option before setting it */
 +        if (file_iformat && file_iformat->priv_class &&
 +            av_opt_find(&file_iformat->priv_class, "channels", NULL, 0,
 +                        AV_OPT_SEARCH_FAKE_OBJ)) {
 +            av_dict_set_int(&o->g->format_opts, "channels", o->audio_channels[o->nb_audio_channels - 1].u.i, 0);
 +        }
 +    }
 +    if (o->nb_frame_rates) {
 +        /* set the format-level framerate option;
 +         * this is important for video grabbers, e.g. x11 */
 +        if (file_iformat && file_iformat->priv_class &&
 +            av_opt_find(&file_iformat->priv_class, "framerate", NULL, 0,
 +                        AV_OPT_SEARCH_FAKE_OBJ)) {
 +            av_dict_set(&o->g->format_opts, "framerate",
 +                        o->frame_rates[o->nb_frame_rates - 1].u.str, 0);
 +        }
 +    }
 +    if (o->nb_frame_sizes) {
 +        av_dict_set(&o->g->format_opts, "video_size", o->frame_sizes[o->nb_frame_sizes - 1].u.str, 0);
 +    }
 +    if (o->nb_frame_pix_fmts)
 +        av_dict_set(&o->g->format_opts, "pixel_format", o->frame_pix_fmts[o->nb_frame_pix_fmts - 1].u.str, 0);
 +
 +    MATCH_PER_TYPE_OPT(codec_names, str,    video_codec_name, ic, "v");
 +    MATCH_PER_TYPE_OPT(codec_names, str,    audio_codec_name, ic, "a");
 +    MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, ic, "s");
 +    MATCH_PER_TYPE_OPT(codec_names, str,     data_codec_name, ic, "d");
 +
 +    ic->video_codec_id   = video_codec_name ?
 +        find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0)->id : AV_CODEC_ID_NONE;
 +    ic->audio_codec_id   = audio_codec_name ?
 +        find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0)->id : AV_CODEC_ID_NONE;
 +    ic->subtitle_codec_id= subtitle_codec_name ?
 +        find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0)->id : AV_CODEC_ID_NONE;
 +    ic->data_codec_id    = data_codec_name ?
 +        find_codec_or_die(data_codec_name, AVMEDIA_TYPE_DATA, 0)->id : AV_CODEC_ID_NONE;
 +
 +    if (video_codec_name)
 +        av_format_set_video_codec   (ic, find_codec_or_die(video_codec_name   , AVMEDIA_TYPE_VIDEO   , 0));
 +    if (audio_codec_name)
 +        av_format_set_audio_codec   (ic, find_codec_or_die(audio_codec_name   , AVMEDIA_TYPE_AUDIO   , 0));
 +    if (subtitle_codec_name)
 +        av_format_set_subtitle_codec(ic, find_codec_or_die(subtitle_codec_name, AVMEDIA_TYPE_SUBTITLE, 0));
 +    if (data_codec_name)
 +        av_format_set_data_codec(ic, find_codec_or_die(data_codec_name, AVMEDIA_TYPE_DATA, 0));
 +
 +    ic->flags |= AVFMT_FLAG_NONBLOCK;
 +    ic->interrupt_callback = int_cb;
 +
 +    if (!av_dict_get(o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
 +        av_dict_set(&o->g->format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
 +        scan_all_pmts_set = 1;
 +    }
 +    /* open the input file with generic avformat function */
 +    err = avformat_open_input(&ic, filename, file_iformat, &o->g->format_opts);
 +    if (err < 0) {
 +        print_error(filename, err);
 +        if (err == AVERROR_PROTOCOL_NOT_FOUND)
 +            av_log(NULL, AV_LOG_ERROR, "Did you mean file:%s?\n", filename);
 +        exit_program(1);
 +    }
 +    if (scan_all_pmts_set)
 +        av_dict_set(&o->g->format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
 +    remove_avoptions(&o->g->format_opts, o->g->codec_opts);
 +    assert_avoptions(o->g->format_opts);
 +
 +    /* apply forced codec ids */
 +    for (i = 0; i < ic->nb_streams; i++)
 +        choose_decoder(o, ic, ic->streams[i]);
 +
 +    /* Set AVCodecContext options for avformat_find_stream_info */
 +    opts = setup_find_stream_info_opts(ic, o->g->codec_opts);
 +    orig_nb_streams = ic->nb_streams;
 +
 +    /* If not enough info to get the stream parameters, we decode the
 +       first frames to get it. (used in mpeg case for example) */
 +    ret = avformat_find_stream_info(ic, opts);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "%s: could not find codec parameters\n", filename);
 +        if (ic->nb_streams == 0) {
 +            avformat_close_input(&ic);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (o->start_time_eof != AV_NOPTS_VALUE) {
 +        if (ic->duration>0) {
 +            o->start_time = o->start_time_eof + ic->duration;
 +        } else
 +            av_log(NULL, AV_LOG_WARNING, "Cannot use -sseof, duration of %s not known\n", filename);
 +    }
 +    timestamp = (o->start_time == AV_NOPTS_VALUE) ? 0 : o->start_time;
 +    /* add the stream start time */
 +    if (!o->seek_timestamp && ic->start_time != AV_NOPTS_VALUE)
 +        timestamp += ic->start_time;
 +
 +    /* if seeking requested, we execute it */
 +    if (o->start_time != AV_NOPTS_VALUE) {
 +        int64_t seek_timestamp = timestamp;
 +
 +        if (!(ic->iformat->flags & AVFMT_SEEK_TO_PTS)) {
 +            int dts_heuristic = 0;
 +            for (i=0; i<ic->nb_streams; i++) {
 +                const AVCodecParameters *par = ic->streams[i]->codecpar;
 +                if (par->video_delay)
 +                    dts_heuristic = 1;
 +            }
 +            if (dts_heuristic) {
 +                seek_timestamp -= 3*AV_TIME_BASE / 23;
 +            }
 +        }
 +        ret = avformat_seek_file(ic, -1, INT64_MIN, seek_timestamp, seek_timestamp, 0);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
 +                   filename, (double)timestamp / AV_TIME_BASE);
 +        }
 +    }
 +
 +    /* update the current parameters so that they match the one of the input stream */
 +    add_input_streams(o, ic);
 +
 +    /* dump the file content */
 +    av_dump_format(ic, nb_input_files, filename, 0);
 +
 +    GROW_ARRAY(input_files, nb_input_files);
 +    f = av_mallocz(sizeof(*f));
 +    if (!f)
 +        exit_program(1);
 +    input_files[nb_input_files - 1] = f;
 +
 +    f->ctx        = ic;
 +    f->ist_index  = nb_input_streams - ic->nb_streams;
 +    f->start_time = o->start_time;
 +    f->recording_time = o->recording_time;
 +    f->input_ts_offset = o->input_ts_offset;
 +    f->ts_offset  = o->input_ts_offset - (copy_ts ? (start_at_zero && ic->start_time != AV_NOPTS_VALUE ? ic->start_time : 0) : timestamp);
 +    f->nb_streams = ic->nb_streams;
 +    f->rate_emu   = o->rate_emu;
 +    f->accurate_seek = o->accurate_seek;
 +    f->loop = o->loop;
 +    f->duration = 0;
 +    f->time_base = (AVRational){ 1, 1 };
 +#if HAVE_PTHREADS
 +    f->thread_queue_size = o->thread_queue_size > 0 ? o->thread_queue_size : 8;
 +#endif
 +
 +    /* check if all codec options have been used */
 +    unused_opts = strip_specifiers(o->g->codec_opts);
 +    for (i = f->ist_index; i < nb_input_streams; i++) {
 +        e = NULL;
 +        while ((e = av_dict_get(input_streams[i]->decoder_opts, "", e,
 +                                AV_DICT_IGNORE_SUFFIX)))
 +            av_dict_set(&unused_opts, e->key, NULL, 0);
 +    }
 +
 +    e = NULL;
 +    while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
 +        const AVClass *class = avcodec_get_class();
 +        const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
 +                                             AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
 +        const AVClass *fclass = avformat_get_class();
 +        const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
 +                                             AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
 +        if (!option || foption)
 +            continue;
 +
 +
 +        if (!(option->flags & AV_OPT_FLAG_DECODING_PARAM)) {
 +            av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
 +                   "input file #%d (%s) is not a decoding option.\n", e->key,
 +                   option->help ? option->help : "", nb_input_files - 1,
 +                   filename);
 +            exit_program(1);
 +        }
 +
 +        av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
 +               "input file #%d (%s) has not been used for any stream. The most "
 +               "likely reason is either wrong type (e.g. a video option with "
 +               "no video streams) or that it is a private option of some decoder "
 +               "which was not actually used for any stream.\n", e->key,
 +               option->help ? option->help : "", nb_input_files - 1, filename);
 +    }
 +    av_dict_free(&unused_opts);
 +
 +    for (i = 0; i < o->nb_dump_attachment; i++) {
 +        int j;
 +
 +        for (j = 0; j < ic->nb_streams; j++) {
 +            AVStream *st = ic->streams[j];
 +
 +            if (check_stream_specifier(ic, st, o->dump_attachment[i].specifier) == 1)
 +                dump_attachment(st, o->dump_attachment[i].u.str);
 +        }
 +    }
 +
 +    for (i = 0; i < orig_nb_streams; i++)
 +        av_dict_free(&opts[i]);
 +    av_freep(&opts);
 +
 +    input_stream_potentially_available = 1;
 +
 +    return 0;
 +}
 +
 +static uint8_t *get_line(AVIOContext *s)
 +{
 +    AVIOContext *line;
 +    uint8_t *buf;
 +    char c;
 +
 +    if (avio_open_dyn_buf(&line) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not alloc buffer for reading preset.\n");
 +        exit_program(1);
 +    }
 +
 +    while ((c = avio_r8(s)) && c != '\n')
 +        avio_w8(line, c);
 +    avio_w8(line, 0);
 +    avio_close_dyn_buf(line, &buf);
 +
 +    return buf;
 +}
 +
 +static int get_preset_file_2(const char *preset_name, const char *codec_name, AVIOContext **s)
 +{
 +    int i, ret = -1;
 +    char filename[1000];
 +    const char *base[3] = { getenv("AVCONV_DATADIR"),
 +                            getenv("HOME"),
 +                            AVCONV_DATADIR,
 +                            };
 +
 +    for (i = 0; i < FF_ARRAY_ELEMS(base) && ret < 0; i++) {
 +        if (!base[i])
 +            continue;
 +        if (codec_name) {
 +            snprintf(filename, sizeof(filename), "%s%s/%s-%s.avpreset", base[i],
 +                     i != 1 ? "" : "/.avconv", codec_name, preset_name);
 +            ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
 +        }
 +        if (ret < 0) {
 +            snprintf(filename, sizeof(filename), "%s%s/%s.avpreset", base[i],
 +                     i != 1 ? "" : "/.avconv", preset_name);
 +            ret = avio_open2(s, filename, AVIO_FLAG_READ, &int_cb, NULL);
 +        }
 +    }
 +    return ret;
 +}
 +
 +static int choose_encoder(OptionsContext *o, AVFormatContext *s, OutputStream *ost)
 +{
 +    enum AVMediaType type = ost->st->codecpar->codec_type;
 +    char *codec_name = NULL;
 +
 +    if (type == AVMEDIA_TYPE_VIDEO || type == AVMEDIA_TYPE_AUDIO || type == AVMEDIA_TYPE_SUBTITLE) {
 +        MATCH_PER_STREAM_OPT(codec_names, str, codec_name, s, ost->st);
 +        if (!codec_name) {
 +            ost->st->codecpar->codec_id = av_guess_codec(s->oformat, NULL, s->filename,
 +                                                         NULL, ost->st->codecpar->codec_type);
 +            ost->enc = avcodec_find_encoder(ost->st->codecpar->codec_id);
 +            if (!ost->enc) {
 +                av_log(NULL, AV_LOG_FATAL, "Automatic encoder selection failed for "
 +                       "output stream #%d:%d. Default encoder for format %s (codec %s) is "
 +                       "probably disabled. Please choose an encoder manually.\n",
 +                       ost->file_index, ost->index, s->oformat->name,
 +                       avcodec_get_name(ost->st->codecpar->codec_id));
 +                return AVERROR_ENCODER_NOT_FOUND;
 +            }
 +        } else if (!strcmp(codec_name, "copy"))
 +            ost->stream_copy = 1;
 +        else {
 +            ost->enc = find_codec_or_die(codec_name, ost->st->codecpar->codec_type, 1);
 +            ost->st->codecpar->codec_id = ost->enc->id;
 +        }
 +        ost->encoding_needed = !ost->stream_copy;
 +    } else {
 +        /* no encoding supported for other media types */
 +        ost->stream_copy     = 1;
 +        ost->encoding_needed = 0;
 +    }
 +
 +    return 0;
 +}
 +
 +static OutputStream *new_output_stream(OptionsContext *o, AVFormatContext *oc, enum AVMediaType type, int source_index)
 +{
 +    OutputStream *ost;
 +    AVStream *st = avformat_new_stream(oc, NULL);
 +    int idx      = oc->nb_streams - 1, ret = 0;
 +    const char *bsfs = NULL, *time_base = NULL;
 +    char *next, *codec_tag = NULL;
 +    double qscale = -1;
 +    int i;
 +
 +    if (!st) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not alloc stream.\n");
 +        exit_program(1);
 +    }
 +
 +    if (oc->nb_streams - 1 < o->nb_streamid_map)
 +        st->id = o->streamid_map[oc->nb_streams - 1];
 +
 +    GROW_ARRAY(output_streams, nb_output_streams);
 +    if (!(ost = av_mallocz(sizeof(*ost))))
 +        exit_program(1);
 +    output_streams[nb_output_streams - 1] = ost;
 +
 +    ost->file_index = nb_output_files - 1;
 +    ost->index      = idx;
 +    ost->st         = st;
 +    st->codecpar->codec_type = type;
 +
 +    ret = choose_encoder(o, oc, ost);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error selecting an encoder for stream "
 +               "%d:%d\n", ost->file_index, ost->index);
 +        exit_program(1);
 +    }
 +
 +    ost->enc_ctx = avcodec_alloc_context3(ost->enc);
 +    if (!ost->enc_ctx) {
 +        av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding context.\n");
 +        exit_program(1);
 +    }
 +    ost->enc_ctx->codec_type = type;
 +
 +    ost->ref_par = avcodec_parameters_alloc();
 +    if (!ost->ref_par) {
 +        av_log(NULL, AV_LOG_ERROR, "Error allocating the encoding parameters.\n");
 +        exit_program(1);
 +    }
 +
 +    if (ost->enc) {
 +        AVIOContext *s = NULL;
 +        char *buf = NULL, *arg = NULL, *preset = NULL;
 +
 +        ost->encoder_opts  = filter_codec_opts(o->g->codec_opts, ost->enc->id, oc, st, ost->enc);
 +
 +        MATCH_PER_STREAM_OPT(presets, str, preset, oc, st);
 +        if (preset && (!(ret = get_preset_file_2(preset, ost->enc->name, &s)))) {
 +            do  {
 +                buf = get_line(s);
 +                if (!buf[0] || buf[0] == '#') {
 +                    av_free(buf);
 +                    continue;
 +                }
 +                if (!(arg = strchr(buf, '='))) {
 +                    av_log(NULL, AV_LOG_FATAL, "Invalid line found in the preset file.\n");
 +                    exit_program(1);
 +                }
 +                *arg++ = 0;
 +                av_dict_set(&ost->encoder_opts, buf, arg, AV_DICT_DONT_OVERWRITE);
 +                av_free(buf);
 +            } while (!s->eof_reached);
 +            avio_closep(&s);
 +        }
 +        if (ret) {
 +            av_log(NULL, AV_LOG_FATAL,
 +                   "Preset %s specified for stream %d:%d, but could not be opened.\n",
 +                   preset, ost->file_index, ost->index);
 +            exit_program(1);
 +        }
 +    } else {
 +        ost->encoder_opts = filter_codec_opts(o->g->codec_opts, AV_CODEC_ID_NONE, oc, st, NULL);
 +    }
 +
 +    MATCH_PER_STREAM_OPT(time_bases, str, time_base, oc, st);
 +    if (time_base) {
 +        AVRational q;
 +        if (av_parse_ratio(&q, time_base, INT_MAX, 0, NULL) < 0 ||
 +            q.num <= 0 || q.den <= 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid time base: %s\n", time_base);
 +            exit_program(1);
 +        }
 +        st->time_base = q;
 +    }
 +
 +    ost->max_frames = INT64_MAX;
 +    MATCH_PER_STREAM_OPT(max_frames, i64, ost->max_frames, oc, st);
 +    for (i = 0; i<o->nb_max_frames; i++) {
 +        char *p = o->max_frames[i].specifier;
 +        if (!*p && type != AVMEDIA_TYPE_VIDEO) {
 +            av_log(NULL, AV_LOG_WARNING, "Applying unspecific -frames to non video streams, maybe you meant -vframes ?\n");
 +            break;
 +        }
 +    }
 +
 +    ost->copy_prior_start = -1;
 +    MATCH_PER_STREAM_OPT(copy_prior_start, i, ost->copy_prior_start, oc ,st);
 +
 +    MATCH_PER_STREAM_OPT(bitstream_filters, str, bsfs, oc, st);
 +    while (bsfs && *bsfs) {
 +        const AVBitStreamFilter *filter;
 +        char *bsf, *bsf_options_str, *bsf_name;
 +
 +        bsf = av_get_token(&bsfs, ",");
 +        if (!bsf)
 +            exit_program(1);
 +        bsf_name = av_strtok(bsf, "=", &bsf_options_str);
 +        if (!bsf_name)
 +            exit_program(1);
 +
 +        filter = av_bsf_get_by_name(bsf_name);
 +        if (!filter) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown bitstream filter %s\n", bsf_name);
 +            exit_program(1);
 +        }
 +
 +        ost->bsf_ctx = av_realloc_array(ost->bsf_ctx,
 +                                        ost->nb_bitstream_filters + 1,
 +                                        sizeof(*ost->bsf_ctx));
 +        if (!ost->bsf_ctx)
 +            exit_program(1);
 +
 +        ret = av_bsf_alloc(filter, &ost->bsf_ctx[ost->nb_bitstream_filters]);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error allocating a bitstream filter context\n");
 +            exit_program(1);
 +        }
 +
 +        ost->nb_bitstream_filters++;
 +
 +        if (bsf_options_str && filter->priv_class) {
 +            const AVOption *opt = av_opt_next(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, NULL);
 +            const char * shorthand[2] = {NULL};
 +
 +            if (opt)
 +                shorthand[0] = opt->name;
 +
 +            ret = av_opt_set_from_string(ost->bsf_ctx[ost->nb_bitstream_filters-1]->priv_data, bsf_options_str, shorthand, "=", ":");
 +            if (ret < 0) {
 +                av_log(NULL, AV_LOG_ERROR, "Error parsing options for bitstream filter %s\n", bsf_name);
 +                exit_program(1);
 +            }
 +        }
 +        av_freep(&bsf);
 +
 +        if (*bsfs)
 +            bsfs++;
 +    }
 +    if (ost->nb_bitstream_filters) {
 +        ost->bsf_extradata_updated = av_mallocz_array(ost->nb_bitstream_filters, sizeof(*ost->bsf_extradata_updated));
 +        if (!ost->bsf_extradata_updated) {
 +            av_log(NULL, AV_LOG_FATAL, "Bitstream filter memory allocation failed\n");
 +            exit_program(1);
 +        }
 +    }
 +
 +    MATCH_PER_STREAM_OPT(codec_tags, str, codec_tag, oc, st);
 +    if (codec_tag) {
 +        uint32_t tag = strtol(codec_tag, &next, 0);
 +        if (*next)
 +            tag = AV_RL32(codec_tag);
 +        ost->st->codecpar->codec_tag =
 +        ost->enc_ctx->codec_tag = tag;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(qscale, dbl, qscale, oc, st);
 +    if (qscale >= 0) {
 +        ost->enc_ctx->flags |= AV_CODEC_FLAG_QSCALE;
 +        ost->enc_ctx->global_quality = FF_QP2LAMBDA * qscale;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(disposition, str, ost->disposition, oc, st);
 +    ost->disposition = av_strdup(ost->disposition);
 +
 +    ost->max_muxing_queue_size = 128;
 +    MATCH_PER_STREAM_OPT(max_muxing_queue_size, i, ost->max_muxing_queue_size, oc, st);
 +    ost->max_muxing_queue_size *= sizeof(AVPacket);
 +
 +    if (oc->oformat->flags & AVFMT_GLOBALHEADER)
 +        ost->enc_ctx->flags |= AV_CODEC_FLAG_GLOBAL_HEADER;
 +
 +    av_dict_copy(&ost->sws_dict, o->g->sws_dict, 0);
 +
 +    av_dict_copy(&ost->swr_opts, o->g->swr_opts, 0);
 +    if (ost->enc && av_get_exact_bits_per_sample(ost->enc->id) == 24)
 +        av_dict_set(&ost->swr_opts, "output_sample_bits", "24", 0);
 +
 +    av_dict_copy(&ost->resample_opts, o->g->resample_opts, 0);
 +
 +    ost->source_index = source_index;
 +    if (source_index >= 0) {
 +        ost->sync_ist = input_streams[source_index];
 +        input_streams[source_index]->discard = 0;
 +        input_streams[source_index]->st->discard = input_streams[source_index]->user_set_discard;
 +    }
 +    ost->last_mux_dts = AV_NOPTS_VALUE;
 +
 +    ost->muxing_queue = av_fifo_alloc(8 * sizeof(AVPacket));
 +    if (!ost->muxing_queue)
 +        exit_program(1);
 +
 +    return ost;
 +}
 +
 +static void parse_matrix_coeffs(uint16_t *dest, const char *str)
 +{
 +    int i;
 +    const char *p = str;
 +    for (i = 0;; i++) {
 +        dest[i] = atoi(p);
 +        if (i == 63)
 +            break;
 +        p = strchr(p, ',');
 +        if (!p) {
 +            av_log(NULL, AV_LOG_FATAL, "Syntax error in matrix \"%s\" at coeff %d\n", str, i);
 +            exit_program(1);
 +        }
 +        p++;
 +    }
 +}
 +
 +/* read file contents into a string */
 +static uint8_t *read_file(const char *filename)
 +{
 +    AVIOContext *pb      = NULL;
 +    AVIOContext *dyn_buf = NULL;
 +    int ret = avio_open(&pb, filename, AVIO_FLAG_READ);
 +    uint8_t buf[1024], *str;
 +
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_ERROR, "Error opening file %s.\n", filename);
 +        return NULL;
 +    }
 +
 +    ret = avio_open_dyn_buf(&dyn_buf);
 +    if (ret < 0) {
 +        avio_closep(&pb);
 +        return NULL;
 +    }
 +    while ((ret = avio_read(pb, buf, sizeof(buf))) > 0)
 +        avio_write(dyn_buf, buf, ret);
 +    avio_w8(dyn_buf, 0);
 +    avio_closep(&pb);
 +
 +    ret = avio_close_dyn_buf(dyn_buf, &str);
 +    if (ret < 0)
 +        return NULL;
 +    return str;
 +}
 +
 +static char *get_ost_filters(OptionsContext *o, AVFormatContext *oc,
 +                             OutputStream *ost)
 +{
 +    AVStream *st = ost->st;
 +
 +    if (ost->filters_script && ost->filters) {
 +        av_log(NULL, AV_LOG_ERROR, "Both -filter and -filter_script set for "
 +               "output stream #%d:%d.\n", nb_output_files, st->index);
 +        exit_program(1);
 +    }
 +
 +    if (ost->filters_script)
 +        return read_file(ost->filters_script);
 +    else if (ost->filters)
 +        return av_strdup(ost->filters);
 +
 +    return av_strdup(st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ?
 +                     "null" : "anull");
 +}
 +
 +static void check_streamcopy_filters(OptionsContext *o, AVFormatContext *oc,
 +                                     const OutputStream *ost, enum AVMediaType type)
 +{
 +    if (ost->filters_script || ost->filters) {
 +        av_log(NULL, AV_LOG_ERROR,
 +               "%s '%s' was defined for %s output stream %d:%d but codec copy was selected.\n"
 +               "Filtering and streamcopy cannot be used together.\n",
 +               ost->filters ? "Filtergraph" : "Filtergraph script",
 +               ost->filters ? ost->filters : ost->filters_script,
 +               av_get_media_type_string(type), ost->file_index, ost->index);
 +        exit_program(1);
 +    }
 +}
 +
 +static OutputStream *new_video_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *video_enc;
 +    char *frame_rate = NULL, *frame_aspect_ratio = NULL;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_VIDEO, source_index);
 +    st  = ost->st;
 +    video_enc = ost->enc_ctx;
 +
 +    MATCH_PER_STREAM_OPT(frame_rates, str, frame_rate, oc, st);
 +    if (frame_rate && av_parse_video_rate(&ost->frame_rate, frame_rate) < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Invalid framerate value: %s\n", frame_rate);
 +        exit_program(1);
 +    }
 +    if (frame_rate && video_sync_method == VSYNC_PASSTHROUGH)
 +        av_log(NULL, AV_LOG_ERROR, "Using -vsync 0 and -r can produce invalid output files\n");
 +
 +    MATCH_PER_STREAM_OPT(frame_aspect_ratios, str, frame_aspect_ratio, oc, st);
 +    if (frame_aspect_ratio) {
 +        AVRational q;
 +        if (av_parse_ratio(&q, frame_aspect_ratio, 255, 0, NULL) < 0 ||
 +            q.num <= 0 || q.den <= 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid aspect ratio: %s\n", frame_aspect_ratio);
 +            exit_program(1);
 +        }
 +        ost->frame_aspect_ratio = q;
 +    }
 +
 +    MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
 +    MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
 +
 +    if (!ost->stream_copy) {
 +        const char *p = NULL;
 +        char *frame_size = NULL;
 +        char *frame_pix_fmt = NULL;
 +        char *intra_matrix = NULL, *inter_matrix = NULL;
 +        char *chroma_intra_matrix = NULL;
 +        int do_pass = 0;
 +        int i;
 +
 +        MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
 +        if (frame_size && av_parse_video_size(&video_enc->width, &video_enc->height, frame_size) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
 +            exit_program(1);
 +        }
 +
 +        video_enc->bits_per_raw_sample = frame_bits_per_raw_sample;
 +        MATCH_PER_STREAM_OPT(frame_pix_fmts, str, frame_pix_fmt, oc, st);
 +        if (frame_pix_fmt && *frame_pix_fmt == '+') {
 +            ost->keep_pix_fmt = 1;
 +            if (!*++frame_pix_fmt)
 +                frame_pix_fmt = NULL;
 +        }
 +        if (frame_pix_fmt && (video_enc->pix_fmt = av_get_pix_fmt(frame_pix_fmt)) == AV_PIX_FMT_NONE) {
 +            av_log(NULL, AV_LOG_FATAL, "Unknown pixel format requested: %s.\n", frame_pix_fmt);
 +            exit_program(1);
 +        }
 +        st->sample_aspect_ratio = video_enc->sample_aspect_ratio;
 +
 +        if (intra_only)
 +            video_enc->gop_size = 0;
 +        MATCH_PER_STREAM_OPT(intra_matrices, str, intra_matrix, oc, st);
 +        if (intra_matrix) {
 +            if (!(video_enc->intra_matrix = av_mallocz(sizeof(*video_enc->intra_matrix) * 64))) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
 +                exit_program(1);
 +            }
 +            parse_matrix_coeffs(video_enc->intra_matrix, intra_matrix);
 +        }
 +        MATCH_PER_STREAM_OPT(chroma_intra_matrices, str, chroma_intra_matrix, oc, st);
 +        if (chroma_intra_matrix) {
 +            uint16_t *p = av_mallocz(sizeof(*video_enc->chroma_intra_matrix) * 64);
 +            if (!p) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for intra matrix.\n");
 +                exit_program(1);
 +            }
 +            av_codec_set_chroma_intra_matrix(video_enc, p);
 +            parse_matrix_coeffs(p, chroma_intra_matrix);
 +        }
 +        MATCH_PER_STREAM_OPT(inter_matrices, str, inter_matrix, oc, st);
 +        if (inter_matrix) {
 +            if (!(video_enc->inter_matrix = av_mallocz(sizeof(*video_enc->inter_matrix) * 64))) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not allocate memory for inter matrix.\n");
 +                exit_program(1);
 +            }
 +            parse_matrix_coeffs(video_enc->inter_matrix, inter_matrix);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(rc_overrides, str, p, oc, st);
 +        for (i = 0; p; i++) {
 +            int start, end, q;
 +            int e = sscanf(p, "%d,%d,%d", &start, &end, &q);
 +            if (e != 3) {
 +                av_log(NULL, AV_LOG_FATAL, "error parsing rc_override\n");
 +                exit_program(1);
 +            }
 +            video_enc->rc_override =
 +                av_realloc_array(video_enc->rc_override,
 +                                 i + 1, sizeof(RcOverride));
 +            if (!video_enc->rc_override) {
 +                av_log(NULL, AV_LOG_FATAL, "Could not (re)allocate memory for rc_override.\n");
 +                exit_program(1);
 +            }
 +            video_enc->rc_override[i].start_frame = start;
 +            video_enc->rc_override[i].end_frame   = end;
 +            if (q > 0) {
 +                video_enc->rc_override[i].qscale         = q;
 +                video_enc->rc_override[i].quality_factor = 1.0;
 +            }
 +            else {
 +                video_enc->rc_override[i].qscale         = 0;
 +                video_enc->rc_override[i].quality_factor = -q/100.0;
 +            }
 +            p = strchr(p, '/');
 +            if (p) p++;
 +        }
 +        video_enc->rc_override_count = i;
 +
 +        if (do_psnr)
 +            video_enc->flags|= AV_CODEC_FLAG_PSNR;
 +
 +        /* two pass mode */
 +        MATCH_PER_STREAM_OPT(pass, i, do_pass, oc, st);
 +        if (do_pass) {
 +            if (do_pass & 1) {
 +                video_enc->flags |= AV_CODEC_FLAG_PASS1;
 +                av_dict_set(&ost->encoder_opts, "flags", "+pass1", AV_DICT_APPEND);
 +            }
 +            if (do_pass & 2) {
 +                video_enc->flags |= AV_CODEC_FLAG_PASS2;
 +                av_dict_set(&ost->encoder_opts, "flags", "+pass2", AV_DICT_APPEND);
 +            }
 +        }
 +
 +        MATCH_PER_STREAM_OPT(passlogfiles, str, ost->logfile_prefix, oc, st);
 +        if (ost->logfile_prefix &&
 +            !(ost->logfile_prefix = av_strdup(ost->logfile_prefix)))
 +            exit_program(1);
 +
 +        if (do_pass) {
 +            char logfilename[1024];
 +            FILE *f;
 +
 +            snprintf(logfilename, sizeof(logfilename), "%s-%d.log",
 +                     ost->logfile_prefix ? ost->logfile_prefix :
 +                                           DEFAULT_PASS_LOGFILENAME_PREFIX,
 +                     i);
 +            if (!strcmp(ost->enc->name, "libx264")) {
 +                av_dict_set(&ost->encoder_opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
 +            } else {
 +                if (video_enc->flags & AV_CODEC_FLAG_PASS2) {
 +                    char  *logbuffer = read_file(logfilename);
 +
 +                    if (!logbuffer) {
 +                        av_log(NULL, AV_LOG_FATAL, "Error reading log file '%s' for pass-2 encoding\n",
 +                               logfilename);
 +                        exit_program(1);
 +                    }
 +                    video_enc->stats_in = logbuffer;
 +                }
 +                if (video_enc->flags & AV_CODEC_FLAG_PASS1) {
 +                    f = av_fopen_utf8(logfilename, "wb");
 +                    if (!f) {
 +                        av_log(NULL, AV_LOG_FATAL,
 +                               "Cannot write log file '%s' for pass-1 encoding: %s\n",
 +                               logfilename, strerror(errno));
 +                        exit_program(1);
 +                    }
 +                    ost->logfile = f;
 +                }
 +            }
 +        }
 +
 +        MATCH_PER_STREAM_OPT(forced_key_frames, str, ost->forced_keyframes, oc, st);
 +        if (ost->forced_keyframes)
 +            ost->forced_keyframes = av_strdup(ost->forced_keyframes);
 +
 +        MATCH_PER_STREAM_OPT(force_fps, i, ost->force_fps, oc, st);
 +
 +        ost->top_field_first = -1;
 +        MATCH_PER_STREAM_OPT(top_field_first, i, ost->top_field_first, oc, st);
 +
 +
 +        ost->avfilter = get_ost_filters(o, oc, ost);
 +        if (!ost->avfilter)
 +            exit_program(1);
 +    } else {
 +        MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc ,st);
 +    }
 +
 +    if (ost->stream_copy)
 +        check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_VIDEO);
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_audio_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    int n;
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *audio_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_AUDIO, source_index);
 +    st  = ost->st;
 +
 +    audio_enc = ost->enc_ctx;
 +    audio_enc->codec_type = AVMEDIA_TYPE_AUDIO;
 +
 +    MATCH_PER_STREAM_OPT(filter_scripts, str, ost->filters_script, oc, st);
 +    MATCH_PER_STREAM_OPT(filters,        str, ost->filters,        oc, st);
 +
 +    if (!ost->stream_copy) {
 +        char *sample_fmt = NULL;
 +
 +        MATCH_PER_STREAM_OPT(audio_channels, i, audio_enc->channels, oc, st);
 +
 +        MATCH_PER_STREAM_OPT(sample_fmts, str, sample_fmt, oc, st);
 +        if (sample_fmt &&
 +            (audio_enc->sample_fmt = av_get_sample_fmt(sample_fmt)) == AV_SAMPLE_FMT_NONE) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid sample format '%s'\n", sample_fmt);
 +            exit_program(1);
 +        }
 +
 +        MATCH_PER_STREAM_OPT(audio_sample_rate, i, audio_enc->sample_rate, oc, st);
 +
 +        MATCH_PER_STREAM_OPT(apad, str, ost->apad, oc, st);
 +        ost->apad = av_strdup(ost->apad);
 +
 +        ost->avfilter = get_ost_filters(o, oc, ost);
 +        if (!ost->avfilter)
 +            exit_program(1);
 +
 +        /* check for channel mapping for this audio stream */
 +        for (n = 0; n < o->nb_audio_channel_maps; n++) {
 +            AudioChannelMap *map = &o->audio_channel_maps[n];
 +            if ((map->ofile_idx   == -1 || ost->file_index == map->ofile_idx) &&
 +                (map->ostream_idx == -1 || ost->st->index  == map->ostream_idx)) {
 +                InputStream *ist;
 +
 +                if (map->channel_idx == -1) {
 +                    ist = NULL;
 +                } else if (ost->source_index < 0) {
 +                    av_log(NULL, AV_LOG_FATAL, "Cannot determine input stream for channel mapping %d.%d\n",
 +                           ost->file_index, ost->st->index);
 +                    continue;
 +                } else {
 +                    ist = input_streams[ost->source_index];
 +                }
 +
 +                if (!ist || (ist->file_index == map->file_idx && ist->st->index == map->stream_idx)) {
 +                    if (av_reallocp_array(&ost->audio_channels_map,
 +                                          ost->audio_channels_mapped + 1,
 +                                          sizeof(*ost->audio_channels_map)
 +                                          ) < 0 )
 +                        exit_program(1);
 +
 +                    ost->audio_channels_map[ost->audio_channels_mapped++] = map->channel_idx;
 +                }
 +            }
 +        }
 +    }
 +
 +    if (ost->stream_copy)
 +        check_streamcopy_filters(o, oc, ost, AVMEDIA_TYPE_AUDIO);
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_data_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    OutputStream *ost;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_DATA, source_index);
 +    if (!ost->stream_copy) {
 +        av_log(NULL, AV_LOG_FATAL, "Data stream encoding not supported yet (only streamcopy)\n");
 +        exit_program(1);
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_unknown_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    OutputStream *ost;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_UNKNOWN, source_index);
 +    if (!ost->stream_copy) {
 +        av_log(NULL, AV_LOG_FATAL, "Unknown stream encoding not supported yet (only streamcopy)\n");
 +        exit_program(1);
 +    }
 +
 +    return ost;
 +}
 +
 +static OutputStream *new_attachment_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    OutputStream *ost = new_output_stream(o, oc, AVMEDIA_TYPE_ATTACHMENT, source_index);
 +    ost->stream_copy = 1;
 +    ost->finished    = 1;
 +    return ost;
 +}
 +
 +static OutputStream *new_subtitle_stream(OptionsContext *o, AVFormatContext *oc, int source_index)
 +{
 +    AVStream *st;
 +    OutputStream *ost;
 +    AVCodecContext *subtitle_enc;
 +
 +    ost = new_output_stream(o, oc, AVMEDIA_TYPE_SUBTITLE, source_index);
 +    st  = ost->st;
 +    subtitle_enc = ost->enc_ctx;
 +
 +    subtitle_enc->codec_type = AVMEDIA_TYPE_SUBTITLE;
 +
 +    MATCH_PER_STREAM_OPT(copy_initial_nonkeyframes, i, ost->copy_initial_nonkeyframes, oc, st);
 +
 +    if (!ost->stream_copy) {
 +        char *frame_size = NULL;
 +
 +        MATCH_PER_STREAM_OPT(frame_sizes, str, frame_size, oc, st);
 +        if (frame_size && av_parse_video_size(&subtitle_enc->width, &subtitle_enc->height, frame_size) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid frame size: %s.\n", frame_size);
 +            exit_program(1);
 +        }
 +    }
 +
 +    return ost;
 +}
 +
 +/* arg format is "output-stream-index:streamid-value". */
 +static int opt_streamid(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    int idx;
 +    char *p;
 +    char idx_str[16];
 +
 +    av_strlcpy(idx_str, arg, sizeof(idx_str));
 +    p = strchr(idx_str, ':');
 +    if (!p) {
 +        av_log(NULL, AV_LOG_FATAL,
 +               "Invalid value '%s' for option '%s', required syntax is 'index:value'\n",
 +               arg, opt);
 +        exit_program(1);
 +    }
 +    *p++ = '\0';
 +    idx = parse_number_or_die(opt, idx_str, OPT_INT, 0, MAX_STREAMS-1);
 +    o->streamid_map = grow_array(o->streamid_map, sizeof(*o->streamid_map), &o->nb_streamid_map, idx+1);
 +    o->streamid_map[idx] = parse_number_or_die(opt, p, OPT_INT, 0, INT_MAX);
 +    return 0;
 +}
 +
 +static int copy_chapters(InputFile *ifile, OutputFile *ofile, int copy_metadata)
 +{
 +    AVFormatContext *is = ifile->ctx;
 +    AVFormatContext *os = ofile->ctx;
 +    AVChapter **tmp;
 +    int i;
 +
 +    tmp = av_realloc_f(os->chapters, is->nb_chapters + os->nb_chapters, sizeof(*os->chapters));
 +    if (!tmp)
 +        return AVERROR(ENOMEM);
 +    os->chapters = tmp;
 +
 +    for (i = 0; i < is->nb_chapters; i++) {
 +        AVChapter *in_ch = is->chapters[i], *out_ch;
 +        int64_t start_time = (ofile->start_time == AV_NOPTS_VALUE) ? 0 : ofile->start_time;
 +        int64_t ts_off   = av_rescale_q(start_time - ifile->ts_offset,
 +                                       AV_TIME_BASE_Q, in_ch->time_base);
 +        int64_t rt       = (ofile->recording_time == INT64_MAX) ? INT64_MAX :
 +                           av_rescale_q(ofile->recording_time, AV_TIME_BASE_Q, in_ch->time_base);
 +
 +
 +        if (in_ch->end < ts_off)
 +            continue;
 +        if (rt != INT64_MAX && in_ch->start > rt + ts_off)
 +            break;
 +
 +        out_ch = av_mallocz(sizeof(AVChapter));
 +        if (!out_ch)
 +            return AVERROR(ENOMEM);
 +
 +        out_ch->id        = in_ch->id;
 +        out_ch->time_base = in_ch->time_base;
 +        out_ch->start     = FFMAX(0,  in_ch->start - ts_off);
 +        out_ch->end       = FFMIN(rt, in_ch->end   - ts_off);
 +
 +        if (copy_metadata)
 +            av_dict_copy(&out_ch->metadata, in_ch->metadata, 0);
 +
 +        os->chapters[os->nb_chapters++] = out_ch;
 +    }
 +    return 0;
 +}
 +
 +static int read_ffserver_streams(OptionsContext *o, AVFormatContext *s, const char *filename)
 +{
 +    int i, err;
 +    AVFormatContext *ic = avformat_alloc_context();
 +
 +    ic->flags |= AVFMT_FLAG_KEEP_SIDE_DATA;
 +    ic->interrupt_callback = int_cb;
 +    err = avformat_open_input(&ic, filename, NULL, NULL);
 +    if (err < 0)
 +        return err;
 +    /* copy stream format */
 +    for(i=0;i<ic->nb_streams;i++) {
 +        AVStream *st;
 +        OutputStream *ost;
 +        AVCodec *codec;
 +        const char *enc_config;
 +
 +        codec = avcodec_find_encoder(ic->streams[i]->codecpar->codec_id);
 +        if (!codec) {
 +            av_log(s, AV_LOG_ERROR, "no encoder found for codec id %i\n", ic->streams[i]->codecpar->codec_id);
 +            return AVERROR(EINVAL);
 +        }
 +        if (codec->type == AVMEDIA_TYPE_AUDIO)
 +            opt_audio_codec(o, "c:a", codec->name);
 +        else if (codec->type == AVMEDIA_TYPE_VIDEO)
 +            opt_video_codec(o, "c:v", codec->name);
 +        ost   = new_output_stream(o, s, codec->type, -1);
 +        st    = ost->st;
 +
 +        avcodec_get_context_defaults3(st->codec, codec);
 +        enc_config = av_stream_get_recommended_encoder_configuration(ic->streams[i]);
 +        if (enc_config) {
 +            AVDictionary *opts = NULL;
 +            av_dict_parse_string(&opts, enc_config, "=", ",", 0);
 +            av_opt_set_dict2(st->codec, &opts, AV_OPT_SEARCH_CHILDREN);
 +            av_dict_free(&opts);
 +        }
 +
 +        if (st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO && !ost->stream_copy)
 +            choose_sample_fmt(st, codec);
 +        else if (st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO && !ost->stream_copy)
 +            choose_pixel_fmt(st, st->codec, codec, st->codecpar->format);
 +        avcodec_copy_context(ost->enc_ctx, st->codec);
 +        if (enc_config)
 +            av_dict_parse_string(&ost->encoder_opts, enc_config, "=", ",", 0);
 +    }
 +
 +    avformat_close_input(&ic);
 +    return err;
 +}
 +
 +static void init_output_filter(OutputFilter *ofilter, OptionsContext *o,
 +                               AVFormatContext *oc)
 +{
 +    OutputStream *ost;
 +
 +    switch (ofilter->type) {
 +    case AVMEDIA_TYPE_VIDEO: ost = new_video_stream(o, oc, -1); break;
 +    case AVMEDIA_TYPE_AUDIO: ost = new_audio_stream(o, oc, -1); break;
 +    default:
 +        av_log(NULL, AV_LOG_FATAL, "Only video and audio filters are supported "
 +               "currently.\n");
 +        exit_program(1);
 +    }
 +
 +    ost->source_index = -1;
 +    ost->filter       = ofilter;
 +
 +    ofilter->ost      = ost;
 +    ofilter->format   = -1;
 +
 +    if (ost->stream_copy) {
 +        av_log(NULL, AV_LOG_ERROR, "Streamcopy requested for output stream %d:%d, "
 +               "which is fed from a complex filtergraph. Filtering and streamcopy "
 +               "cannot be used together.\n", ost->file_index, ost->index);
 +        exit_program(1);
 +    }
 +
 +    if (ost->avfilter && (ost->filters || ost->filters_script)) {
 +        const char *opt = ost->filters ? "-vf/-af/-filter" : "-filter_script";
 +        av_log(NULL, AV_LOG_ERROR,
 +               "%s '%s' was specified through the %s option "
 +               "for output stream %d:%d, which is fed from a complex filtergraph.\n"
 +               "%s and -filter_complex cannot be used together for the same stream.\n",
 +               ost->filters ? "Filtergraph" : "Filtergraph script",
 +               ost->filters ? ost->filters : ost->filters_script,
 +               opt, ost->file_index, ost->index, opt);
 +        exit_program(1);
 +    }
 +
 +    avfilter_inout_free(&ofilter->out_tmp);
 +}
 +
 +static int init_complex_filters(void)
 +{
 +    int i, ret = 0;
 +
 +    for (i = 0; i < nb_filtergraphs; i++) {
 +        ret = init_complex_filtergraph(filtergraphs[i]);
 +        if (ret < 0)
 +            return ret;
 +    }
 +    return 0;
 +}
 +
 +static int open_output_file(OptionsContext *o, const char *filename)
 +{
 +    AVFormatContext *oc;
 +    int i, j, err;
 +    AVOutputFormat *file_oformat;
 +    OutputFile *of;
 +    OutputStream *ost;
 +    InputStream  *ist;
 +    AVDictionary *unused_opts = NULL;
 +    AVDictionaryEntry *e = NULL;
 +    int format_flags = 0;
 +
 +    if (o->stop_time != INT64_MAX && o->recording_time != INT64_MAX) {
 +        o->stop_time = INT64_MAX;
 +        av_log(NULL, AV_LOG_WARNING, "-t and -to cannot be used together; using -t.\n");
 +    }
 +
 +    if (o->stop_time != INT64_MAX && o->recording_time == INT64_MAX) {
 +        int64_t start_time = o->start_time == AV_NOPTS_VALUE ? 0 : o->start_time;
 +        if (o->stop_time <= start_time) {
 +            av_log(NULL, AV_LOG_ERROR, "-to value smaller than -ss; aborting.\n");
 +            exit_program(1);
 +        } else {
 +            o->recording_time = o->stop_time - start_time;
 +        }
 +    }
 +
 +    GROW_ARRAY(output_files, nb_output_files);
 +    of = av_mallocz(sizeof(*of));
 +    if (!of)
 +        exit_program(1);
 +    output_files[nb_output_files - 1] = of;
 +
 +    of->ost_index      = nb_output_streams;
 +    of->recording_time = o->recording_time;
 +    of->start_time     = o->start_time;
 +    of->limit_filesize = o->limit_filesize;
 +    of->shortest       = o->shortest;
 +    av_dict_copy(&of->opts, o->g->format_opts, 0);
 +
 +    if (!strcmp(filename, "-"))
 +        filename = "pipe:";
 +
 +    err = avformat_alloc_output_context2(&oc, NULL, o->format, filename);
 +    if (!oc) {
 +        print_error(filename, err);
 +        exit_program(1);
 +    }
 +
 +    of->ctx = oc;
 +    if (o->recording_time != INT64_MAX)
 +        oc->duration = o->recording_time;
 +
 +    file_oformat= oc->oformat;
 +    oc->interrupt_callback = int_cb;
 +
 +    e = av_dict_get(o->g->format_opts, "fflags", NULL, 0);
 +    if (e) {
 +        const AVOption *o = av_opt_find(oc, "fflags", NULL, 0, 0);
 +        av_opt_eval_flags(oc, o, e->value, &format_flags);
 +    }
 +
 +    /* create streams for all unlabeled output pads */
 +    for (i = 0; i < nb_filtergraphs; i++) {
 +        FilterGraph *fg = filtergraphs[i];
 +        for (j = 0; j < fg->nb_outputs; j++) {
 +            OutputFilter *ofilter = fg->outputs[j];
 +
 +            if (!ofilter->out_tmp || ofilter->out_tmp->name)
 +                continue;
 +
 +            switch (ofilter->type) {
 +            case AVMEDIA_TYPE_VIDEO:    o->video_disable    = 1; break;
 +            case AVMEDIA_TYPE_AUDIO:    o->audio_disable    = 1; break;
 +            case AVMEDIA_TYPE_SUBTITLE: o->subtitle_disable = 1; break;
 +            }
 +            init_output_filter(ofilter, o, oc);
 +        }
 +    }
 +
 +    /* ffserver seeking with date=... needs a date reference */
 +    if (!strcmp(file_oformat->name, "ffm") &&
 +        !(format_flags & AVFMT_FLAG_BITEXACT) &&
 +        av_strstart(filename, "http:", NULL)) {
 +        int err = parse_option(o, "metadata", "creation_time=now", options);
 +        if (err < 0) {
 +            print_error(filename, err);
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (!strcmp(file_oformat->name, "ffm") && !override_ffserver &&
 +        av_strstart(filename, "http:", NULL)) {
 +        int j;
 +        /* special case for files sent to ffserver: we get the stream
 +           parameters from ffserver */
 +        int err = read_ffserver_streams(o, oc, filename);
 +        if (err < 0) {
 +            print_error(filename, err);
 +            exit_program(1);
 +        }
 +        for(j = nb_output_streams - oc->nb_streams; j < nb_output_streams; j++) {
 +            ost = output_streams[j];
 +            for (i = 0; i < nb_input_streams; i++) {
 +                ist = input_streams[i];
 +                if(ist->st->codecpar->codec_type == ost->st->codecpar->codec_type){
 +                    ost->sync_ist= ist;
 +                    ost->source_index= i;
 +                    if(ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) ost->avfilter = av_strdup("anull");
 +                    if(ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO) ost->avfilter = av_strdup("null");
 +                    ist->discard = 0;
 +                    ist->st->discard = ist->user_set_discard;
 +                    break;
 +                }
 +            }
 +            if(!ost->sync_ist){
 +                av_log(NULL, AV_LOG_FATAL, "Missing %s stream which is required by this ffm\n", av_get_media_type_string(ost->st->codecpar->codec_type));
 +                exit_program(1);
 +            }
 +        }
 +    } else if (!o->nb_stream_maps) {
 +        char *subtitle_codec_name = NULL;
 +        /* pick the "best" stream of each type */
 +
 +        /* video: highest resolution */
 +        if (!o->video_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_VIDEO) != AV_CODEC_ID_NONE) {
 +            int area = 0, idx = -1;
 +            int qcr = avformat_query_codec(oc->oformat, oc->oformat->video_codec, 0);
 +            for (i = 0; i < nb_input_streams; i++) {
 +                int new_area;
 +                ist = input_streams[i];
 +                new_area = ist->st->codecpar->width * ist->st->codecpar->height + 100000000*!!ist->st->codec_info_nb_frames;
 +                if((qcr!=MKTAG('A', 'P', 'I', 'C')) && (ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
 +                    new_area = 1;
 +                if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO &&
 +                    new_area > area) {
 +                    if((qcr==MKTAG('A', 'P', 'I', 'C')) && !(ist->st->disposition & AV_DISPOSITION_ATTACHED_PIC))
 +                        continue;
 +                    area = new_area;
 +                    idx = i;
 +                }
 +            }
 +            if (idx >= 0)
 +                new_video_stream(o, oc, idx);
 +        }
 +
 +        /* audio: most channels */
 +        if (!o->audio_disable && av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_AUDIO) != AV_CODEC_ID_NONE) {
 +            int best_score = 0, idx = -1;
 +            for (i = 0; i < nb_input_streams; i++) {
 +                int score;
 +                ist = input_streams[i];
 +                score = ist->st->codecpar->channels + 100000000*!!ist->st->codec_info_nb_frames;
 +                if (ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO &&
 +                    score > best_score) {
 +                    best_score = score;
 +                    idx = i;
 +                }
 +            }
 +            if (idx >= 0)
 +                new_audio_stream(o, oc, idx);
 +        }
 +
 +        /* subtitles: pick first */
 +        MATCH_PER_TYPE_OPT(codec_names, str, subtitle_codec_name, oc, "s");
 +        if (!o->subtitle_disable && (avcodec_find_encoder(oc->oformat->subtitle_codec) || subtitle_codec_name)) {
 +            for (i = 0; i < nb_input_streams; i++)
 +                if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE) {
 +                    AVCodecDescriptor const *input_descriptor =
 +                        avcodec_descriptor_get(input_streams[i]->st->codecpar->codec_id);
 +                    AVCodecDescriptor const *output_descriptor = NULL;
 +                    AVCodec const *output_codec =
 +                        avcodec_find_encoder(oc->oformat->subtitle_codec);
 +                    int input_props = 0, output_props = 0;
 +                    if (output_codec)
 +                        output_descriptor = avcodec_descriptor_get(output_codec->id);
 +                    if (input_descriptor)
 +                        input_props = input_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
 +                    if (output_descriptor)
 +                        output_props = output_descriptor->props & (AV_CODEC_PROP_TEXT_SUB | AV_CODEC_PROP_BITMAP_SUB);
 +                    if (subtitle_codec_name ||
 +                        input_props & output_props ||
 +                        // Map dvb teletext which has neither property to any output subtitle encoder
 +                        input_descriptor && output_descriptor &&
 +                        (!input_descriptor->props ||
 +                         !output_descriptor->props)) {
 +                        new_subtitle_stream(o, oc, i);
 +                        break;
 +                    }
 +                }
 +        }
 +        /* Data only if codec id match */
 +        if (!o->data_disable ) {
 +            enum AVCodecID codec_id = av_guess_codec(oc->oformat, NULL, filename, NULL, AVMEDIA_TYPE_DATA);
 +            for (i = 0; codec_id != AV_CODEC_ID_NONE && i < nb_input_streams; i++) {
 +                if (input_streams[i]->st->codecpar->codec_type == AVMEDIA_TYPE_DATA
 +                    && input_streams[i]->st->codecpar->codec_id == codec_id )
 +                    new_data_stream(o, oc, i);
 +            }
 +        }
 +    } else {
 +        for (i = 0; i < o->nb_stream_maps; i++) {
 +            StreamMap *map = &o->stream_maps[i];
 +
 +            if (map->disabled)
 +                continue;
 +
 +            if (map->linklabel) {
 +                FilterGraph *fg;
 +                OutputFilter *ofilter = NULL;
 +                int j, k;
 +
 +                for (j = 0; j < nb_filtergraphs; j++) {
 +                    fg = filtergraphs[j];
 +                    for (k = 0; k < fg->nb_outputs; k++) {
 +                        AVFilterInOut *out = fg->outputs[k]->out_tmp;
 +                        if (out && !strcmp(out->name, map->linklabel)) {
 +                            ofilter = fg->outputs[k];
 +                            goto loop_end;
 +                        }
 +                    }
 +                }
 +loop_end:
 +                if (!ofilter) {
 +                    av_log(NULL, AV_LOG_FATAL, "Output with label '%s' does not exist "
 +                           "in any defined filter graph, or was already used elsewhere.\n", map->linklabel);
 +                    exit_program(1);
 +                }
 +                init_output_filter(ofilter, o, oc);
 +            } else {
 +                int src_idx = input_files[map->file_index]->ist_index + map->stream_index;
 +
 +                ist = input_streams[input_files[map->file_index]->ist_index + map->stream_index];
 +                if(o->subtitle_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_SUBTITLE)
 +                    continue;
 +                if(o->   audio_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO)
 +                    continue;
 +                if(o->   video_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO)
 +                    continue;
 +                if(o->    data_disable && ist->st->codecpar->codec_type == AVMEDIA_TYPE_DATA)
 +                    continue;
 +
 +                ost = NULL;
 +                switch (ist->st->codecpar->codec_type) {
 +                case AVMEDIA_TYPE_VIDEO:      ost = new_video_stream     (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_AUDIO:      ost = new_audio_stream     (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_SUBTITLE:   ost = new_subtitle_stream  (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_DATA:       ost = new_data_stream      (o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_ATTACHMENT: ost = new_attachment_stream(o, oc, src_idx); break;
 +                case AVMEDIA_TYPE_UNKNOWN:
 +                    if (copy_unknown_streams) {
 +                        ost = new_unknown_stream   (o, oc, src_idx);
 +                        break;
 +                    }
 +                default:
 +                    av_log(NULL, ignore_unknown_streams ? AV_LOG_WARNING : AV_LOG_FATAL,
 +                           "Cannot map stream #%d:%d - unsupported type.\n",
 +                           map->file_index, map->stream_index);
 +                    if (!ignore_unknown_streams) {
 +                        av_log(NULL, AV_LOG_FATAL,
 +                               "If you want unsupported types ignored instead "
 +                               "of failing, please use the -ignore_unknown option\n"
 +                               "If you want them copied, please use -copy_unknown\n");
 +                        exit_program(1);
 +                    }
 +                }
 +                if (ost)
 +                    ost->sync_ist = input_streams[  input_files[map->sync_file_index]->ist_index
 +                                                  + map->sync_stream_index];
 +            }
 +        }
 +    }
 +
 +    /* handle attached files */
 +    for (i = 0; i < o->nb_attachments; i++) {
 +        AVIOContext *pb;
 +        uint8_t *attachment;
 +        const char *p;
 +        int64_t len;
 +
 +        if ((err = avio_open2(&pb, o->attachments[i], AVIO_FLAG_READ, &int_cb, NULL)) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Could not open attachment file %s.\n",
 +                   o->attachments[i]);
 +            exit_program(1);
 +        }
 +        if ((len = avio_size(pb)) <= 0) {
 +            av_log(NULL, AV_LOG_FATAL, "Could not get size of the attachment %s.\n",
 +                   o->attachments[i]);
 +            exit_program(1);
 +        }
 +        if (!(attachment = av_malloc(len))) {
 +            av_log(NULL, AV_LOG_FATAL, "Attachment %s too large to fit into memory.\n",
 +                   o->attachments[i]);
 +            exit_program(1);
 +        }
 +        avio_read(pb, attachment, len);
 +
 +        ost = new_attachment_stream(o, oc, -1);
 +        ost->stream_copy               = 0;
 +        ost->attachment_filename       = o->attachments[i];
 +        ost->st->codecpar->extradata      = attachment;
 +        ost->st->codecpar->extradata_size = len;
 +
 +        p = strrchr(o->attachments[i], '/');
 +        av_dict_set(&ost->st->metadata, "filename", (p && *p) ? p + 1 : o->attachments[i], AV_DICT_DONT_OVERWRITE);
 +        avio_closep(&pb);
 +    }
 +
 +#if FF_API_LAVF_AVCTX
 +    for (i = nb_output_streams - oc->nb_streams; i < nb_output_streams; i++) { //for all streams of this output file
 +        AVDictionaryEntry *e;
 +        ost = output_streams[i];
 +
 +        if ((ost->stream_copy || ost->attachment_filename)
 +            && (e = av_dict_get(o->g->codec_opts, "flags", NULL, AV_DICT_IGNORE_SUFFIX))
 +            && (!e->key[5] || check_stream_specifier(oc, ost->st, e->key+6)))
 +            if (av_opt_set(ost->st->codec, "flags", e->value, 0) < 0)
 +                exit_program(1);
 +    }
 +#endif
 +
 +    if (!oc->nb_streams && !(oc->oformat->flags & AVFMT_NOSTREAMS)) {
 +        av_dump_format(oc, nb_output_files - 1, oc->filename, 1);
 +        av_log(NULL, AV_LOG_ERROR, "Output file #%d does not contain any stream\n", nb_output_files - 1);
 +        exit_program(1);
 +    }
 +
 +    /* check if all codec options have been used */
 +    unused_opts = strip_specifiers(o->g->codec_opts);
 +    for (i = of->ost_index; i < nb_output_streams; i++) {
 +        e = NULL;
 +        while ((e = av_dict_get(output_streams[i]->encoder_opts, "", e,
 +                                AV_DICT_IGNORE_SUFFIX)))
 +            av_dict_set(&unused_opts, e->key, NULL, 0);
 +    }
 +
 +    e = NULL;
 +    while ((e = av_dict_get(unused_opts, "", e, AV_DICT_IGNORE_SUFFIX))) {
 +        const AVClass *class = avcodec_get_class();
 +        const AVOption *option = av_opt_find(&class, e->key, NULL, 0,
 +                                             AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
 +        const AVClass *fclass = avformat_get_class();
 +        const AVOption *foption = av_opt_find(&fclass, e->key, NULL, 0,
 +                                              AV_OPT_SEARCH_CHILDREN | AV_OPT_SEARCH_FAKE_OBJ);
 +        if (!option || foption)
 +            continue;
 +
 +
 +        if (!(option->flags & AV_OPT_FLAG_ENCODING_PARAM)) {
 +            av_log(NULL, AV_LOG_ERROR, "Codec AVOption %s (%s) specified for "
 +                   "output file #%d (%s) is not an encoding option.\n", e->key,
 +                   option->help ? option->help : "", nb_output_files - 1,
 +                   filename);
 +            exit_program(1);
 +        }
 +
 +        // gop_timecode is injected by generic code but not always used
 +        if (!strcmp(e->key, "gop_timecode"))
 +            continue;
 +
 +        av_log(NULL, AV_LOG_WARNING, "Codec AVOption %s (%s) specified for "
 +               "output file #%d (%s) has not been used for any stream. The most "
 +               "likely reason is either wrong type (e.g. a video option with "
 +               "no video streams) or that it is a private option of some encoder "
 +               "which was not actually used for any stream.\n", e->key,
 +               option->help ? option->help : "", nb_output_files - 1, filename);
 +    }
 +    av_dict_free(&unused_opts);
 +
 +    /* set the decoding_needed flags and create simple filtergraphs */
 +    for (i = of->ost_index; i < nb_output_streams; i++) {
 +        OutputStream *ost = output_streams[i];
 +
 +        if (ost->encoding_needed && ost->source_index >= 0) {
 +            InputStream *ist = input_streams[ost->source_index];
 +            ist->decoding_needed |= DECODING_FOR_OST;
 +
 +            if (ost->st->codecpar->codec_type == AVMEDIA_TYPE_VIDEO ||
 +                ost->st->codecpar->codec_type == AVMEDIA_TYPE_AUDIO) {
 +                err = init_simple_filtergraph(ist, ost);
 +                if (err < 0) {
 +                    av_log(NULL, AV_LOG_ERROR,
 +                           "Error initializing a simple filtergraph between streams "
 +                           "%d:%d->%d:%d\n", ist->file_index, ost->source_index,
 +                           nb_output_files - 1, ost->st->index);
 +                    exit_program(1);
 +                }
 +            }
 +        }
 +
 +        /* set the filter output constraints */
 +        if (ost->filter) {
 +            OutputFilter *f = ost->filter;
 +            int count;
 +            switch (ost->enc_ctx->codec_type) {
 +            case AVMEDIA_TYPE_VIDEO:
 +                f->frame_rate = ost->frame_rate;
 +                f->width      = ost->enc_ctx->width;
 +                f->height     = ost->enc_ctx->height;
 +                if (ost->enc_ctx->pix_fmt != AV_PIX_FMT_NONE) {
 +                    f->format = ost->enc_ctx->pix_fmt;
 +                } else if (ost->enc->pix_fmts) {
 +                    count = 0;
 +                    while (ost->enc->pix_fmts[count] != AV_PIX_FMT_NONE)
 +                        count++;
 +                    f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
 +                    if (!f->formats)
 +                        exit_program(1);
 +                    memcpy(f->formats, ost->enc->pix_fmts, (count + 1) * sizeof(*f->formats));
 +                }
 +                break;
 +            case AVMEDIA_TYPE_AUDIO:
 +                if (ost->enc_ctx->sample_fmt != AV_SAMPLE_FMT_NONE) {
 +                    f->format = ost->enc_ctx->sample_fmt;
 +                } else if (ost->enc->sample_fmts) {
 +                    count = 0;
 +                    while (ost->enc->sample_fmts[count] != AV_SAMPLE_FMT_NONE)
 +                        count++;
 +                    f->formats = av_mallocz_array(count + 1, sizeof(*f->formats));
 +                    if (!f->formats)
 +                        exit_program(1);
 +                    memcpy(f->formats, ost->enc->sample_fmts, (count + 1) * sizeof(*f->formats));
 +                }
 +                if (ost->enc_ctx->sample_rate) {
 +                    f->sample_rate = ost->enc_ctx->sample_rate;
 +                } else if (ost->enc->supported_samplerates) {
 +                    count = 0;
 +                    while (ost->enc->supported_samplerates[count])
 +                        count++;
 +                    f->sample_rates = av_mallocz_array(count + 1, sizeof(*f->sample_rates));
 +                    if (!f->sample_rates)
 +                        exit_program(1);
 +                    memcpy(f->sample_rates, ost->enc->supported_samplerates,
 +                           (count + 1) * sizeof(*f->sample_rates));
 +                }
 +                if (ost->enc_ctx->channels) {
 +                    f->channel_layout = av_get_default_channel_layout(ost->enc_ctx->channels);
 +                } else if (ost->enc->channel_layouts) {
 +                    count = 0;
 +                    while (ost->enc->channel_layouts[count])
 +                        count++;
 +                    f->channel_layouts = av_mallocz_array(count + 1, sizeof(*f->channel_layouts));
 +                    if (!f->channel_layouts)
 +                        exit_program(1);
 +                    memcpy(f->channel_layouts, ost->enc->channel_layouts,
 +                           (count + 1) * sizeof(*f->channel_layouts));
 +                }
 +                break;
 +            }
 +        }
 +    }
 +
 +    /* check filename in case of an image number is expected */
 +    if (oc->oformat->flags & AVFMT_NEEDNUMBER) {
 +        if (!av_filename_number_test(oc->filename)) {
 +            print_error(oc->filename, AVERROR(EINVAL));
 +            exit_program(1);
 +        }
 +    }
 +
 +    if (!(oc->oformat->flags & AVFMT_NOSTREAMS) && !input_stream_potentially_available) {
 +        av_log(NULL, AV_LOG_ERROR,
 +               "No input streams but output needs an input stream\n");
 +        exit_program(1);
 +    }
 +
 +    if (!(oc->oformat->flags & AVFMT_NOFILE)) {
 +        /* test if it already exists to avoid losing precious files */
 +        assert_file_overwrite(filename);
 +
 +        /* open the file */
 +        if ((err = avio_open2(&oc->pb, filename, AVIO_FLAG_WRITE,
 +                              &oc->interrupt_callback,
 +                              &of->opts)) < 0) {
 +            print_error(filename, err);
 +            exit_program(1);
 +        }
 +    } else if (strcmp(oc->oformat->name, "image2")==0 && !av_filename_number_test(filename))
 +        assert_file_overwrite(filename);
 +
 +    if (o->mux_preload) {
 +        av_dict_set_int(&of->opts, "preload", o->mux_preload*AV_TIME_BASE, 0);
 +    }
 +    oc->max_delay = (int)(o->mux_max_delay * AV_TIME_BASE);
 +
 +    /* copy metadata */
 +    for (i = 0; i < o->nb_metadata_map; i++) {
 +        char *p;
 +        int in_file_index = strtol(o->metadata_map[i].u.str, &p, 0);
 +
 +        if (in_file_index >= nb_input_files) {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d while processing metadata maps\n", in_file_index);
 +            exit_program(1);
 +        }
 +        copy_metadata(o->metadata_map[i].specifier, *p ? p + 1 : p, oc,
 +                      in_file_index >= 0 ?
 +                      input_files[in_file_index]->ctx : NULL, o);
 +    }
 +
 +    /* copy chapters */
 +    if (o->chapters_input_file >= nb_input_files) {
 +        if (o->chapters_input_file == INT_MAX) {
 +            /* copy chapters from the first input file that has them*/
 +            o->chapters_input_file = -1;
 +            for (i = 0; i < nb_input_files; i++)
 +                if (input_files[i]->ctx->nb_chapters) {
 +                    o->chapters_input_file = i;
 +                    break;
 +                }
 +        } else {
 +            av_log(NULL, AV_LOG_FATAL, "Invalid input file index %d in chapter mapping.\n",
 +                   o->chapters_input_file);
 +            exit_program(1);
 +        }
 +    }
 +    if (o->chapters_input_file >= 0)
 +        copy_chapters(input_files[o->chapters_input_file], of,
 +                      !o->metadata_chapters_manual);
 +
 +    /* copy global metadata by default */
 +    if (!o->metadata_global_manual && nb_input_files){
 +        av_dict_copy(&oc->metadata, input_files[0]->ctx->metadata,
 +                     AV_DICT_DONT_OVERWRITE);
 +        if(o->recording_time != INT64_MAX)
 +            av_dict_set(&oc->metadata, "duration", NULL, 0);
 +        av_dict_set(&oc->metadata, "creation_time", NULL, 0);
 +    }
 +    if (!o->metadata_streams_manual)
 +        for (i = of->ost_index; i < nb_output_streams; i++) {
 +            InputStream *ist;
 +            if (output_streams[i]->source_index < 0)         /* this is true e.g. for attached files */
 +                continue;
 +            ist = input_streams[output_streams[i]->source_index];
 +            av_dict_copy(&output_streams[i]->st->metadata, ist->st->metadata, AV_DICT_DONT_OVERWRITE);
 +            if (!output_streams[i]->stream_copy) {
 +                av_dict_set(&output_streams[i]->st->metadata, "encoder", NULL, 0);
 +            }
 +        }
 +
 +    /* process manually set programs */
 +    for (i = 0; i < o->nb_program; i++) {
 +        const char *p = o->program[i].u.str;
 +        int progid = i+1;
 +        AVProgram *program;
 +
 +        while(*p) {
 +            const char *p2 = av_get_token(&p, ":");
 +            const char *to_dealloc = p2;
 +            char *key;
 +            if (!p2)
 +                break;
 +
 +            if(*p) p++;
 +
 +            key = av_get_token(&p2, "=");
 +            if (!key || !*p2) {
 +                av_freep(&to_dealloc);
 +                av_freep(&key);
 +                break;
 +            }
 +            p2++;
 +
 +            if (!strcmp(key, "program_num"))
 +                progid = strtol(p2, NULL, 0);
 +            av_freep(&to_dealloc);
 +            av_freep(&key);
 +        }
 +
 +        program = av_new_program(oc, progid);
 +
 +        p = o->program[i].u.str;
 +        while(*p) {
 +            const char *p2 = av_get_token(&p, ":");
 +            const char *to_dealloc = p2;
 +            char *key;
 +            if (!p2)
 +                break;
 +            if(*p) p++;
 +
 +            key = av_get_token(&p2, "=");
 +            if (!key) {
 +                av_log(NULL, AV_LOG_FATAL,
 +                       "No '=' character in program string %s.\n",
 +                       p2);
 +                exit_program(1);
 +            }
 +            if (!*p2)
 +                exit_program(1);
 +            p2++;
 +
 +            if (!strcmp(key, "title")) {
 +                av_dict_set(&program->metadata, "title", p2, 0);
 +            } else if (!strcmp(key, "program_num")) {
 +            } else if (!strcmp(key, "st")) {
 +                int st_num = strtol(p2, NULL, 0);
 +                av_program_add_stream_index(oc, progid, st_num);
 +            } else {
 +                av_log(NULL, AV_LOG_FATAL, "Unknown program key %s.\n", key);
 +                exit_program(1);
 +            }
 +            av_freep(&to_dealloc);
 +            av_freep(&key);
 +        }
 +    }
 +
 +    /* process manually set metadata */
 +    for (i = 0; i < o->nb_metadata; i++) {
 +        AVDictionary **m;
 +        char type, *val;
 +        const char *stream_spec;
 +        int index = 0, j, ret = 0;
 +
 +        val = strchr(o->metadata[i].u.str, '=');
 +        if (!val) {
 +            av_log(NULL, AV_LOG_FATAL, "No '=' character in metadata string %s.\n",
 +                   o->metadata[i].u.str);
 +            exit_program(1);
 +        }
 +        *val++ = 0;
 +
 +        parse_meta_type(o->metadata[i].specifier, &type, &index, &stream_spec);
 +        if (type == 's') {
 +            for (j = 0; j < oc->nb_streams; j++) {
 +                ost = output_streams[nb_output_streams - oc->nb_streams + j];
 +                if ((ret = check_stream_specifier(oc, oc->streams[j], stream_spec)) > 0) {
 +                    if (!strcmp(o->metadata[i].u.str, "rotate")) {
 +                        char *tail;
 +                        double theta = av_strtod(val, &tail);
 +                        if (!*tail) {
 +                            ost->rotate_overridden = 1;
 +                            ost->rotate_override_value = theta;
 +                        }
 +                    } else {
 +                        av_dict_set(&oc->streams[j]->metadata, o->metadata[i].u.str, *val ? val : NULL, 0);
 +                    }
 +                } else if (ret < 0)
 +                    exit_program(1);
 +            }
 +        }
 +        else {
 +            switch (type) {
 +            case 'g':
 +                m = &oc->metadata;
 +                break;
 +            case 'c':
 +                if (index < 0 || index >= oc->nb_chapters) {
 +                    av_log(NULL, AV_LOG_FATAL, "Invalid chapter index %d in metadata specifier.\n", index);
 +                    exit_program(1);
 +                }
 +                m = &oc->chapters[index]->metadata;
 +                break;
 +            case 'p':
 +                if (index < 0 || index >= oc->nb_programs) {
 +                    av_log(NULL, AV_LOG_FATAL, "Invalid program index %d in metadata specifier.\n", index);
 +                    exit_program(1);
 +                }
 +                m = &oc->programs[index]->metadata;
 +                break;
 +            default:
 +                av_log(NULL, AV_LOG_FATAL, "Invalid metadata specifier %s.\n", o->metadata[i].specifier);
 +                exit_program(1);
 +            }
 +            av_dict_set(m, o->metadata[i].u.str, *val ? val : NULL, 0);
 +        }
 +    }
 +
 +    return 0;
 +}
 +
 +static int opt_target(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    enum { PAL, NTSC, FILM, UNKNOWN } norm = UNKNOWN;
 +    static const char *const frame_rates[] = { "25", "30000/1001", "24000/1001" };
 +
 +    if (!strncmp(arg, "pal-", 4)) {
 +        norm = PAL;
 +        arg += 4;
 +    } else if (!strncmp(arg, "ntsc-", 5)) {
 +        norm = NTSC;
 +        arg += 5;
 +    } else if (!strncmp(arg, "film-", 5)) {
 +        norm = FILM;
 +        arg += 5;
 +    } else {
 +        /* Try to determine PAL/NTSC by peeking in the input files */
 +        if (nb_input_files) {
 +            int i, j, fr;
 +            for (j = 0; j < nb_input_files; j++) {
 +                for (i = 0; i < input_files[j]->nb_streams; i++) {
 +                    AVStream *st = input_files[j]->ctx->streams[i];
 +                    if (st->codecpar->codec_type != AVMEDIA_TYPE_VIDEO)
 +                        continue;
 +                    fr = st->time_base.den * 1000 / st->time_base.num;
 +                    if (fr == 25000) {
 +                        norm = PAL;
 +                        break;
 +                    } else if ((fr == 29970) || (fr == 23976)) {
 +                        norm = NTSC;
 +                        break;
 +                    }
 +                }
 +                if (norm != UNKNOWN)
 +                    break;
 +            }
 +        }
 +        if (norm != UNKNOWN)
 +            av_log(NULL, AV_LOG_INFO, "Assuming %s for target.\n", norm == PAL ? "PAL" : "NTSC");
 +    }
 +
 +    if (norm == UNKNOWN) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not determine norm (PAL/NTSC/NTSC-Film) for target.\n");
 +        av_log(NULL, AV_LOG_FATAL, "Please prefix target with \"pal-\", \"ntsc-\" or \"film-\",\n");
 +        av_log(NULL, AV_LOG_FATAL, "or set a framerate with \"-r xxx\".\n");
 +        exit_program(1);
 +    }
 +
 +    if (!strcmp(arg, "vcd")) {
 +        opt_video_codec(o, "c:v", "mpeg1video");
 +        opt_audio_codec(o, "c:a", "mp2");
 +        parse_option(o, "f", "vcd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "352x288" : "352x240", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        opt_default(NULL, "g", norm == PAL ? "15" : "18");
 +
 +        opt_default(NULL, "b:v", "1150000");
 +        opt_default(NULL, "maxrate:v", "1150000");
 +        opt_default(NULL, "minrate:v", "1150000");
 +        opt_default(NULL, "bufsize:v", "327680"); // 40*1024*8;
 +
 +        opt_default(NULL, "b:a", "224000");
 +        parse_option(o, "ar", "44100", options);
 +        parse_option(o, "ac", "2", options);
 +
 +        opt_default(NULL, "packetsize", "2324");
 +        opt_default(NULL, "muxrate", "1411200"); // 2352 * 75 * 8;
 +
 +        /* We have to offset the PTS, so that it is consistent with the SCR.
 +           SCR starts at 36000, but the first two packs contain only padding
 +           and the first pack from the other stream, respectively, may also have
 +           been written before.
 +           So the real data starts at SCR 36000+3*1200. */
 +        o->mux_preload = (36000 + 3 * 1200) / 90000.0; // 0.44
 +    } else if (!strcmp(arg, "svcd")) {
 +
 +        opt_video_codec(o, "c:v", "mpeg2video");
 +        opt_audio_codec(o, "c:a", "mp2");
 +        parse_option(o, "f", "svcd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "480x576" : "480x480", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        parse_option(o, "pix_fmt", "yuv420p", options);
 +        opt_default(NULL, "g", norm == PAL ? "15" : "18");
 +
 +        opt_default(NULL, "b:v", "2040000");
 +        opt_default(NULL, "maxrate:v", "2516000");
 +        opt_default(NULL, "minrate:v", "0"); // 1145000;
 +        opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
 +        opt_default(NULL, "scan_offset", "1");
 +
 +        opt_default(NULL, "b:a", "224000");
 +        parse_option(o, "ar", "44100", options);
 +
 +        opt_default(NULL, "packetsize", "2324");
 +
 +    } else if (!strcmp(arg, "dvd")) {
 +
 +        opt_video_codec(o, "c:v", "mpeg2video");
 +        opt_audio_codec(o, "c:a", "ac3");
 +        parse_option(o, "f", "dvd", options);
 +
 +        parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +        parse_option(o, "pix_fmt", "yuv420p", options);
 +        opt_default(NULL, "g", norm == PAL ? "15" : "18");
 +
 +        opt_default(NULL, "b:v", "6000000");
 +        opt_default(NULL, "maxrate:v", "9000000");
 +        opt_default(NULL, "minrate:v", "0"); // 1500000;
 +        opt_default(NULL, "bufsize:v", "1835008"); // 224*1024*8;
 +
 +        opt_default(NULL, "packetsize", "2048");  // from www.mpucoder.com: DVD sectors contain 2048 bytes of data, this is also the size of one pack.
 +        opt_default(NULL, "muxrate", "10080000"); // from mplex project: data_rate = 1260000. mux_rate = data_rate * 8
 +
 +        opt_default(NULL, "b:a", "448000");
 +        parse_option(o, "ar", "48000", options);
 +
 +    } else if (!strncmp(arg, "dv", 2)) {
 +
 +        parse_option(o, "f", "dv", options);
 +
 +        parse_option(o, "s", norm == PAL ? "720x576" : "720x480", options);
 +        parse_option(o, "pix_fmt", !strncmp(arg, "dv50", 4) ? "yuv422p" :
 +                          norm == PAL ? "yuv420p" : "yuv411p", options);
 +        parse_option(o, "r", frame_rates[norm], options);
 +
 +        parse_option(o, "ar", "48000", options);
 +        parse_option(o, "ac", "2", options);
 +
 +    } else {
 +        av_log(NULL, AV_LOG_ERROR, "Unknown target: %s\n", arg);
 +        return AVERROR(EINVAL);
 +    }
 +
 +    av_dict_copy(&o->g->codec_opts,  codec_opts, AV_DICT_DONT_OVERWRITE);
 +    av_dict_copy(&o->g->format_opts, format_opts, AV_DICT_DONT_OVERWRITE);
 +
 +    return 0;
 +}
 +
 +static int opt_vstats_file(void *optctx, const char *opt, const char *arg)
 +{
 +    av_free (vstats_filename);
 +    vstats_filename = av_strdup (arg);
 +    return 0;
 +}
 +
 +static int opt_vstats(void *optctx, const char *opt, const char *arg)
 +{
 +    char filename[40];
 +    time_t today2 = time(NULL);
 +    struct tm *today = localtime(&today2);
 +
 +    if (!today) { // maybe tomorrow
 +        av_log(NULL, AV_LOG_FATAL, "Unable to get current time: %s\n", strerror(errno));
 +        exit_program(1);
 +    }
 +
 +    snprintf(filename, sizeof(filename), "vstats_%02d%02d%02d.log", today->tm_hour, today->tm_min,
 +             today->tm_sec);
 +    return opt_vstats_file(NULL, opt, filename);
 +}
 +
 +static int opt_video_frames(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "frames:v", arg, options);
 +}
 +
 +static int opt_audio_frames(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "frames:a", arg, options);
 +}
 +
 +static int opt_data_frames(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "frames:d", arg, options);
 +}
 +
 +static int opt_default_new(OptionsContext *o, const char *opt, const char *arg)
 +{
 +    int ret;
 +    AVDictionary *cbak = codec_opts;
 +    AVDictionary *fbak = format_opts;
 +    codec_opts = NULL;
 +    format_opts = NULL;
 +
 +    ret = opt_default(NULL, opt, arg);
 +
 +    av_dict_copy(&o->g->codec_opts , codec_opts, 0);
 +    av_dict_copy(&o->g->format_opts, format_opts, 0);
 +    av_dict_free(&codec_opts);
 +    av_dict_free(&format_opts);
 +    codec_opts = cbak;
 +    format_opts = fbak;
 +
 +    return ret;
 +}
 +
 +static int opt_preset(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    FILE *f=NULL;
 +    char filename[1000], line[1000], tmp_line[1000];
 +    const char *codec_name = NULL;
 +
 +    tmp_line[0] = *opt;
 +    tmp_line[1] = 0;
 +    MATCH_PER_TYPE_OPT(codec_names, str, codec_name, NULL, tmp_line);
 +
 +    if (!(f = get_preset_file(filename, sizeof(filename), arg, *opt == 'f', codec_name))) {
 +        if(!strncmp(arg, "libx264-lossless", strlen("libx264-lossless"))){
 +            av_log(NULL, AV_LOG_FATAL, "Please use -preset <speed> -qp 0\n");
 +        }else
 +            av_log(NULL, AV_LOG_FATAL, "File for preset '%s' not found\n", arg);
 +        exit_program(1);
 +    }
 +
 +    while (fgets(line, sizeof(line), f)) {
 +        char *key = tmp_line, *value, *endptr;
 +
 +        if (strcspn(line, "#\n\r") == 0)
 +            continue;
 +        av_strlcpy(tmp_line, line, sizeof(tmp_line));
 +        if (!av_strtok(key,   "=",    &value) ||
 +            !av_strtok(value, "\r\n", &endptr)) {
 +            av_log(NULL, AV_LOG_FATAL, "%s: Invalid syntax: '%s'\n", filename, line);
 +            exit_program(1);
 +        }
 +        av_log(NULL, AV_LOG_DEBUG, "ffpreset[%s]: set '%s' = '%s'\n", filename, key, value);
 +
 +        if      (!strcmp(key, "acodec")) opt_audio_codec   (o, key, value);
 +        else if (!strcmp(key, "vcodec")) opt_video_codec   (o, key, value);
 +        else if (!strcmp(key, "scodec")) opt_subtitle_codec(o, key, value);
 +        else if (!strcmp(key, "dcodec")) opt_data_codec    (o, key, value);
 +        else if (opt_default_new(o, key, value) < 0) {
 +            av_log(NULL, AV_LOG_FATAL, "%s: Invalid option or argument: '%s', parsed as '%s' = '%s'\n",
 +                   filename, line, key, value);
 +            exit_program(1);
 +        }
 +    }
 +
 +    fclose(f);
 +
 +    return 0;
 +}
 +
 +static int opt_old2new(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char *s = av_asprintf("%s:%c", opt + 1, *opt);
 +    int ret = parse_option(o, s, arg, options);
 +    av_free(s);
 +    return ret;
 +}
 +
 +static int opt_bitrate(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +
 +    if(!strcmp(opt, "ab")){
 +        av_dict_set(&o->g->codec_opts, "b:a", arg, 0);
 +        return 0;
 +    } else if(!strcmp(opt, "b")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -b:a or -b:v, -b is ambiguous\n");
 +        av_dict_set(&o->g->codec_opts, "b:v", arg, 0);
 +        return 0;
 +    }
 +    av_dict_set(&o->g->codec_opts, opt, arg, 0);
 +    return 0;
 +}
 +
 +static int opt_qscale(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char *s;
 +    int ret;
 +    if(!strcmp(opt, "qscale")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -q:a or -q:v, -qscale is ambiguous\n");
 +        return parse_option(o, "q:v", arg, options);
 +    }
 +    s = av_asprintf("q%s", opt + 6);
 +    ret = parse_option(o, s, arg, options);
 +    av_free(s);
 +    return ret;
 +}
 +
 +static int opt_profile(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    if(!strcmp(opt, "profile")){
 +        av_log(NULL, AV_LOG_WARNING, "Please use -profile:a or -profile:v, -profile is ambiguous\n");
 +        av_dict_set(&o->g->codec_opts, "profile:v", arg, 0);
 +        return 0;
 +    }
 +    av_dict_set(&o->g->codec_opts, opt, arg, 0);
 +    return 0;
 +}
 +
 +static int opt_video_filters(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "filter:v", arg, options);
 +}
 +
 +static int opt_audio_filters(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "filter:a", arg, options);
 +}
 +
 +static int opt_vsync(void *optctx, const char *opt, const char *arg)
 +{
 +    if      (!av_strcasecmp(arg, "cfr"))         video_sync_method = VSYNC_CFR;
 +    else if (!av_strcasecmp(arg, "vfr"))         video_sync_method = VSYNC_VFR;
 +    else if (!av_strcasecmp(arg, "passthrough")) video_sync_method = VSYNC_PASSTHROUGH;
 +    else if (!av_strcasecmp(arg, "drop"))        video_sync_method = VSYNC_DROP;
 +
 +    if (video_sync_method == VSYNC_AUTO)
 +        video_sync_method = parse_number_or_die("vsync", arg, OPT_INT, VSYNC_AUTO, VSYNC_VFR);
 +    return 0;
 +}
 +
 +static int opt_timecode(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char *tcr = av_asprintf("timecode=%s", arg);
 +    int ret = parse_option(o, "metadata:g", tcr, options);
 +    if (ret >= 0)
 +        ret = av_dict_set(&o->g->codec_opts, "gop_timecode", arg, 0);
 +    av_free(tcr);
 +    return 0;
 +}
 +
 +static int opt_channel_layout(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    char layout_str[32];
 +    char *stream_str;
 +    char *ac_str;
 +    int ret, channels, ac_str_size;
 +    uint64_t layout;
 +
 +    layout = av_get_channel_layout(arg);
 +    if (!layout) {
 +        av_log(NULL, AV_LOG_ERROR, "Unknown channel layout: %s\n", arg);
 +        return AVERROR(EINVAL);
 +    }
 +    snprintf(layout_str, sizeof(layout_str), "%"PRIu64, layout);
 +    ret = opt_default_new(o, opt, layout_str);
 +    if (ret < 0)
 +        return ret;
 +
 +    /* set 'ac' option based on channel layout */
 +    channels = av_get_channel_layout_nb_channels(layout);
 +    snprintf(layout_str, sizeof(layout_str), "%d", channels);
 +    stream_str = strchr(opt, ':');
 +    ac_str_size = 3 + (stream_str ? strlen(stream_str) : 0);
 +    ac_str = av_mallocz(ac_str_size);
 +    if (!ac_str)
 +        return AVERROR(ENOMEM);
 +    av_strlcpy(ac_str, "ac", 3);
 +    if (stream_str)
 +        av_strlcat(ac_str, stream_str, ac_str_size);
 +    ret = parse_option(o, ac_str, layout_str, options);
 +    av_free(ac_str);
 +
 +    return ret;
 +}
 +
 +static int opt_audio_qscale(void *optctx, const char *opt, const char *arg)
 +{
 +    OptionsContext *o = optctx;
 +    return parse_option(o, "q:a", arg, options);
 +}
 +
 +static int opt_filter_complex(void *optctx, const char *opt, const char *arg)
 +{
 +    GROW_ARRAY(filtergraphs, nb_filtergraphs);
 +    if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
 +        return AVERROR(ENOMEM);
 +    filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
 +    filtergraphs[nb_filtergraphs - 1]->graph_desc = av_strdup(arg);
 +    if (!filtergraphs[nb_filtergraphs - 1]->graph_desc)
 +        return AVERROR(ENOMEM);
 +
 +    input_stream_potentially_available = 1;
 +
 +    return 0;
 +}
 +
 +static int opt_filter_complex_script(void *optctx, const char *opt, const char *arg)
 +{
 +    uint8_t *graph_desc = read_file(arg);
 +    if (!graph_desc)
 +        return AVERROR(EINVAL);
 +
 +    GROW_ARRAY(filtergraphs, nb_filtergraphs);
 +    if (!(filtergraphs[nb_filtergraphs - 1] = av_mallocz(sizeof(*filtergraphs[0]))))
 +        return AVERROR(ENOMEM);
 +    filtergraphs[nb_filtergraphs - 1]->index      = nb_filtergraphs - 1;
 +    filtergraphs[nb_filtergraphs - 1]->graph_desc = graph_desc;
 +
 +    input_stream_potentially_available = 1;
 +
 +    return 0;
 +}
 +
 +void show_help_default(const char *opt, const char *arg)
 +{
 +    /* per-file options have at least one of those set */
 +    const int per_file = OPT_SPEC | OPT_OFFSET | OPT_PERFILE;
 +    int show_advanced = 0, show_avoptions = 0;
 +
 +    if (opt && *opt) {
 +        if (!strcmp(opt, "long"))
 +            show_advanced = 1;
 +        else if (!strcmp(opt, "full"))
 +            show_advanced = show_avoptions = 1;
 +        else
 +            av_log(NULL, AV_LOG_ERROR, "Unknown help option '%s'.\n", opt);
 +    }
 +
 +    show_usage();
 +
 +    printf("Getting help:\n"
 +           "    -h      -- print basic options\n"
 +           "    -h long -- print more options\n"
 +           "    -h full -- print all options (including all format and codec specific options, very long)\n"
 +           "    -h type=name -- print all options for the named decoder/encoder/demuxer/muxer/filter\n"
 +           "    See man %s for detailed description of the options.\n"
 +           "\n", program_name);
 +
 +    show_help_options(options, "Print help / information / capabilities:",
 +                      OPT_EXIT, 0, 0);
 +
 +    show_help_options(options, "Global options (affect whole program "
 +                      "instead of just one file:",
 +                      0, per_file | OPT_EXIT | OPT_EXPERT, 0);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced global options:", OPT_EXPERT,
 +                          per_file | OPT_EXIT, 0);
 +
 +    show_help_options(options, "Per-file main options:", 0,
 +                      OPT_EXPERT | OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE |
 +                      OPT_EXIT, per_file);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced per-file options:",
 +                          OPT_EXPERT, OPT_AUDIO | OPT_VIDEO | OPT_SUBTITLE, per_file);
 +
 +    show_help_options(options, "Video options:",
 +                      OPT_VIDEO, OPT_EXPERT | OPT_AUDIO, 0);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced Video options:",
 +                          OPT_EXPERT | OPT_VIDEO, OPT_AUDIO, 0);
 +
 +    show_help_options(options, "Audio options:",
 +                      OPT_AUDIO, OPT_EXPERT | OPT_VIDEO, 0);
 +    if (show_advanced)
 +        show_help_options(options, "Advanced Audio options:",
 +                          OPT_EXPERT | OPT_AUDIO, OPT_VIDEO, 0);
 +    show_help_options(options, "Subtitle options:",
 +                      OPT_SUBTITLE, 0, 0);
 +    printf("\n");
 +
 +    if (show_avoptions) {
 +        int flags = AV_OPT_FLAG_DECODING_PARAM | AV_OPT_FLAG_ENCODING_PARAM;
 +        show_help_children(avcodec_get_class(), flags);
 +        show_help_children(avformat_get_class(), flags);
 +#if CONFIG_SWSCALE
 +        show_help_children(sws_get_class(), flags);
 +#endif
 +        show_help_children(swr_get_class(), AV_OPT_FLAG_AUDIO_PARAM);
 +        show_help_children(avfilter_get_class(), AV_OPT_FLAG_VIDEO_PARAM | AV_OPT_FLAG_AUDIO_PARAM | AV_OPT_FLAG_FILTERING_PARAM);
 +    }
 +}
 +
 +void show_usage(void)
 +{
 +    av_log(NULL, AV_LOG_INFO, "Hyper fast Audio and Video encoder\n");
 +    av_log(NULL, AV_LOG_INFO, "usage: %s [options] [[infile options] -i infile]... {[outfile options] outfile}...\n", program_name);
 +    av_log(NULL, AV_LOG_INFO, "\n");
 +}
 +
 +enum OptGroup {
 +    GROUP_OUTFILE,
 +    GROUP_INFILE,
 +};
 +
 +static const OptionGroupDef groups[] = {
 +    [GROUP_OUTFILE] = { "output url",  NULL, OPT_OUTPUT },
 +    [GROUP_INFILE]  = { "input url",   "i",  OPT_INPUT },
 +};
 +
 +static int open_files(OptionGroupList *l, const char *inout,
 +                      int (*open_file)(OptionsContext*, const char*))
 +{
 +    int i, ret;
 +
 +    for (i = 0; i < l->nb_groups; i++) {
 +        OptionGroup *g = &l->groups[i];
 +        OptionsContext o;
 +
 +        init_options(&o);
 +        o.g = g;
 +
 +        ret = parse_optgroup(&o, g);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error parsing options for %s file "
 +                   "%s.\n", inout, g->arg);
 +            return ret;
 +        }
 +
 +        av_log(NULL, AV_LOG_DEBUG, "Opening an %s file: %s.\n", inout, g->arg);
 +        ret = open_file(&o, g->arg);
 +        uninit_options(&o);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "Error opening %s file %s.\n",
 +                   inout, g->arg);
 +            return ret;
 +        }
 +        av_log(NULL, AV_LOG_DEBUG, "Successfully opened the file.\n");
 +    }
 +
 +    return 0;
 +}
 +
 +int ffmpeg_parse_options(int argc, char **argv)
 +{
 +    OptionParseContext octx;
 +    uint8_t error[128];
 +    int ret;
 +
 +    memset(&octx, 0, sizeof(octx));
 +
 +    /* split the commandline into an internal representation */
 +    ret = split_commandline(&octx, argc, argv, options, groups,
 +                            FF_ARRAY_ELEMS(groups));
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error splitting the argument list: ");
 +        goto fail;
 +    }
 +
 +    /* apply global options */
 +    ret = parse_optgroup(NULL, &octx.global_opts);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error parsing global options: ");
 +        goto fail;
 +    }
 +
 +    /* configure terminal and setup signal handlers */
 +    term_init();
 +
 +    /* open input files */
 +    ret = open_files(&octx.groups[GROUP_INFILE], "input", open_input_file);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error opening input files: ");
 +        goto fail;
 +    }
 +
 +    /* create the complex filtergraphs */
 +    ret = init_complex_filters();
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error initializing complex filters.\n");
 +        goto fail;
 +    }
 +
 +    /* open output files */
 +    ret = open_files(&octx.groups[GROUP_OUTFILE], "output", open_output_file);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Error opening output files: ");
 +        goto fail;
 +    }
 +
 +    check_filter_outputs();
 +
 +fail:
 +    uninit_parse_context(&octx);
 +    if (ret < 0) {
 +        av_strerror(ret, error, sizeof(error));
 +        av_log(NULL, AV_LOG_FATAL, "%s\n", error);
 +    }
 +    return ret;
 +}
 +
 +static int opt_progress(void *optctx, const char *opt, const char *arg)
 +{
 +    AVIOContext *avio = NULL;
 +    int ret;
 +
 +    if (!strcmp(arg, "-"))
 +        arg = "pipe:";
 +    ret = avio_open2(&avio, arg, AVIO_FLAG_WRITE, &int_cb, NULL);
 +    if (ret < 0) {
 +        av_log(NULL, AV_LOG_ERROR, "Failed to open progress URL \"%s\": %s\n",
 +               arg, av_err2str(ret));
 +        return ret;
 +    }
 +    progress_avio = avio;
 +    return 0;
 +}
 +
 +#define OFFSET(x) offsetof(OptionsContext, x)
 +const OptionDef options[] = {
 +    /* main options */
++    CMDUTILS_COMMON_OPTIONS
 +    { "f",              HAS_ARG | OPT_STRING | OPT_OFFSET |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(format) },
 +        "force format", "fmt" },
 +    { "y",              OPT_BOOL,                                    {              &file_overwrite },
 +        "overwrite output files" },
 +    { "n",              OPT_BOOL,                                    {              &no_file_overwrite },
 +        "never overwrite output files" },
 +    { "ignore_unknown", OPT_BOOL,                                    {              &ignore_unknown_streams },
 +        "Ignore unknown stream types" },
 +    { "copy_unknown",   OPT_BOOL | OPT_EXPERT,                       {              &copy_unknown_streams },
 +        "Copy unknown stream types" },
 +    { "c",              HAS_ARG | OPT_STRING | OPT_SPEC |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
 +        "codec name", "codec" },
 +    { "codec",          HAS_ARG | OPT_STRING | OPT_SPEC |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off       = OFFSET(codec_names) },
 +        "codec name", "codec" },
 +    { "pre",            HAS_ARG | OPT_STRING | OPT_SPEC |
 +                        OPT_OUTPUT,                                  { .off       = OFFSET(presets) },
 +        "preset name", "preset" },
 +    { "map",            HAS_ARG | OPT_EXPERT | OPT_PERFILE |
 +                        OPT_OUTPUT,                                  { .func_arg = opt_map },
 +        "set input stream mapping",
 +        "[-]input_file_id[:stream_specifier][,sync_file_id[:stream_specifier]]" },
 +    { "map_channel",    HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_map_channel },
 +        "map an audio channel from one stream to another", "file.stream.channel[:syncfile.syncstream]" },
 +    { "map_metadata",   HAS_ARG | OPT_STRING | OPT_SPEC |
 +                        OPT_OUTPUT,                                  { .off       = OFFSET(metadata_map) },
 +        "set metadata information of outfile from infile",
 +        "outfile[,metadata]:infile[,metadata]" },
 +    { "map_chapters",   HAS_ARG | OPT_INT | OPT_EXPERT | OPT_OFFSET |
 +                        OPT_OUTPUT,                                  { .off = OFFSET(chapters_input_file) },
 +        "set chapters mapping", "input_file_index" },
 +    { "t",              HAS_ARG | OPT_TIME | OPT_OFFSET |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(recording_time) },
 +        "record or transcode \"duration\" seconds of audio/video",
 +        "duration" },
 +    { "to",             HAS_ARG | OPT_TIME | OPT_OFFSET | OPT_OUTPUT,  { .off = OFFSET(stop_time) },
 +        "record or transcode stop time", "time_stop" },
 +    { "fs",             HAS_ARG | OPT_INT64 | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(limit_filesize) },
 +        "set the limit file size in bytes", "limit_size" },
 +    { "ss",             HAS_ARG | OPT_TIME | OPT_OFFSET |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time) },
 +        "set the start time offset", "time_off" },
 +    { "sseof",          HAS_ARG | OPT_TIME | OPT_OFFSET |
 +                        OPT_INPUT | OPT_OUTPUT,                      { .off = OFFSET(start_time_eof) },
 +        "set the start time offset relative to EOF", "time_off" },
 +    { "seek_timestamp", HAS_ARG | OPT_INT | OPT_OFFSET |
 +                        OPT_INPUT,                                   { .off = OFFSET(seek_timestamp) },
 +        "enable/disable seeking by timestamp with -ss" },
 +    { "accurate_seek",  OPT_BOOL | OPT_OFFSET | OPT_EXPERT |
 +                        OPT_INPUT,                                   { .off = OFFSET(accurate_seek) },
 +        "enable/disable accurate seeking with -ss" },
 +    { "itsoffset",      HAS_ARG | OPT_TIME | OPT_OFFSET |
 +                        OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(input_ts_offset) },
 +        "set the input ts offset", "time_off" },
 +    { "itsscale",       HAS_ARG | OPT_DOUBLE | OPT_SPEC |
 +                        OPT_EXPERT | OPT_INPUT,                      { .off = OFFSET(ts_scale) },
 +        "set the input ts scale", "scale" },
 +    { "timestamp",      HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_recording_timestamp },
 +        "set the recording timestamp ('now' to set the current time)", "time" },
 +    { "metadata",       HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(metadata) },
 +        "add metadata", "string=string" },
 +    { "program",        HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(program) },
 +        "add program with specified streams", "title=string:st=number..." },
 +    { "dframes",        HAS_ARG | OPT_PERFILE | OPT_EXPERT |
 +                        OPT_OUTPUT,                                  { .func_arg = opt_data_frames },
 +        "set the number of data frames to output", "number" },
 +    { "benchmark",      OPT_BOOL | OPT_EXPERT,                       { &do_benchmark },
 +        "add timings for benchmarking" },
 +    { "benchmark_all",  OPT_BOOL | OPT_EXPERT,                       { &do_benchmark_all },
 +      "add timings for each task" },
 +    { "progress",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_progress },
 +      "write program-readable progress information", "url" },
 +    { "stdin",          OPT_BOOL | OPT_EXPERT,                       { &stdin_interaction },
 +      "enable or disable interaction on standard input" },
 +    { "timelimit",      HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_timelimit },
 +        "set max runtime in seconds", "limit" },
 +    { "dump",           OPT_BOOL | OPT_EXPERT,                       { &do_pkt_dump },
 +        "dump each input packet" },
 +    { "hex",            OPT_BOOL | OPT_EXPERT,                       { &do_hex_dump },
 +        "when dumping packets, also dump the payload" },
 +    { "re",             OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
 +                        OPT_INPUT,                                   { .off = OFFSET(rate_emu) },
 +        "read input at native frame rate", "" },
 +    { "target",         HAS_ARG | OPT_PERFILE | OPT_OUTPUT,          { .func_arg = opt_target },
 +        "specify target file type (\"vcd\", \"svcd\", \"dvd\", \"dv\" or \"dv50\" "
 +        "with optional prefixes \"pal-\", \"ntsc-\" or \"film-\")", "type" },
 +    { "vsync",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_vsync },
 +        "video sync method", "" },
 +    { "frame_drop_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,      { &frame_drop_threshold },
 +        "frame drop threshold", "" },
 +    { "async",          HAS_ARG | OPT_INT | OPT_EXPERT,              { &audio_sync_method },
 +        "audio sync method", "" },
 +    { "adrift_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,          { &audio_drift_threshold },
 +        "audio drift threshold", "threshold" },
 +    { "copyts",         OPT_BOOL | OPT_EXPERT,                       { &copy_ts },
 +        "copy timestamps" },
 +    { "start_at_zero",  OPT_BOOL | OPT_EXPERT,                       { &start_at_zero },
 +        "shift input timestamps to start at 0 when using copyts" },
 +    { "copytb",         HAS_ARG | OPT_INT | OPT_EXPERT,              { &copy_tb },
 +        "copy input stream time base when stream copying", "mode" },
 +    { "shortest",       OPT_BOOL | OPT_EXPERT | OPT_OFFSET |
 +                        OPT_OUTPUT,                                  { .off = OFFSET(shortest) },
 +        "finish encoding within shortest input" },
 +    { "apad",           OPT_STRING | HAS_ARG | OPT_SPEC |
 +                        OPT_OUTPUT,                                  { .off = OFFSET(apad) },
 +        "audio pad", "" },
 +    { "dts_delta_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_delta_threshold },
 +        "timestamp discontinuity delta threshold", "threshold" },
 +    { "dts_error_threshold", HAS_ARG | OPT_FLOAT | OPT_EXPERT,       { &dts_error_threshold },
 +        "timestamp error delta threshold", "threshold" },
 +    { "xerror",         OPT_BOOL | OPT_EXPERT,                       { &exit_on_error },
 +        "exit on error", "error" },
 +    { "abort_on",       HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_abort_on },
 +        "abort on the specified condition flags", "flags" },
 +    { "copyinkf",       OPT_BOOL | OPT_EXPERT | OPT_SPEC |
 +                        OPT_OUTPUT,                                  { .off = OFFSET(copy_initial_nonkeyframes) },
 +        "copy initial non-keyframes" },
 +    { "copypriorss",    OPT_INT | HAS_ARG | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT,   { .off = OFFSET(copy_prior_start) },
 +        "copy or discard frames before start time" },
 +    { "frames",         OPT_INT64 | HAS_ARG | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(max_frames) },
 +        "set the number of frames to output", "number" },
 +    { "tag",            OPT_STRING | HAS_ARG | OPT_SPEC |
 +                        OPT_EXPERT | OPT_OUTPUT | OPT_INPUT,         { .off = OFFSET(codec_tags) },
 +        "force codec tag/fourcc", "fourcc/tag" },
 +    { "q",              HAS_ARG | OPT_EXPERT | OPT_DOUBLE |
 +                        OPT_SPEC | OPT_OUTPUT,                       { .off = OFFSET(qscale) },
 +        "use fixed quality scale (VBR)", "q" },
 +    { "qscale",         HAS_ARG | OPT_EXPERT | OPT_PERFILE |
 +                        OPT_OUTPUT,                                  { .func_arg = opt_qscale },
 +        "use fixed quality scale (VBR)", "q" },
 +    { "profile",        HAS_ARG | OPT_EXPERT | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_profile },
 +        "set profile", "profile" },
 +    { "filter",         HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filters) },
 +        "set stream filtergraph", "filter_graph" },
 +    { "filter_threads",  HAS_ARG | OPT_INT,                          { &filter_nbthreads },
 +        "number of non-complex filter threads" },
 +    { "filter_script",  HAS_ARG | OPT_STRING | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(filter_scripts) },
 +        "read stream filtergraph description from a file", "filename" },
 +    { "reinit_filter",  HAS_ARG | OPT_INT | OPT_SPEC | OPT_INPUT,    { .off = OFFSET(reinit_filters) },
 +        "reinit filtergraph on input parameter changes", "" },
 +    { "filter_complex", HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
 +        "create a complex filtergraph", "graph_description" },
 +    { "filter_complex_threads", HAS_ARG | OPT_INT,                   { &filter_complex_nbthreads },
 +        "number of threads for -filter_complex" },
 +    { "lavfi",          HAS_ARG | OPT_EXPERT,                        { .func_arg = opt_filter_complex },
 +        "create a complex filtergraph", "graph_description" },
 +    { "filter_complex_script", HAS_ARG | OPT_EXPERT,                 { .func_arg = opt_filter_complex_script },
 +        "read complex filtergraph description from a file", "filename" },
 +    { "stats",          OPT_BOOL,                                    { &print_stats },
 +        "print progress report during encoding", },
 +    { "attach",         HAS_ARG | OPT_PERFILE | OPT_EXPERT |
 +                        OPT_OUTPUT,                                  { .func_arg = opt_attach },
 +        "add an attachment to the output file", "filename" },
 +    { "dump_attachment", HAS_ARG | OPT_STRING | OPT_SPEC |
 +                         OPT_EXPERT | OPT_INPUT,                     { .off = OFFSET(dump_attachment) },
 +        "extract an attachment into a file", "filename" },
 +    { "stream_loop", OPT_INT | HAS_ARG | OPT_EXPERT | OPT_INPUT |
 +                        OPT_OFFSET,                                  { .off = OFFSET(loop) }, "set number of times input stream shall be looped", "loop count" },
 +    { "debug_ts",       OPT_BOOL | OPT_EXPERT,                       { &debug_ts },
 +        "print timestamp debugging info" },
 +    { "max_error_rate",  HAS_ARG | OPT_FLOAT,                        { &max_error_rate },
 +        "maximum error rate", "ratio of errors (0.0: no errors, 1.0: 100% errors) above which ffmpeg returns an error instead of success." },
 +    { "discard",        OPT_STRING | HAS_ARG | OPT_SPEC |
 +                        OPT_INPUT,                                   { .off = OFFSET(discard) },
 +        "discard", "" },
 +    { "disposition",    OPT_STRING | HAS_ARG | OPT_SPEC |
 +                        OPT_OUTPUT,                                  { .off = OFFSET(disposition) },
 +        "disposition", "" },
 +    { "thread_queue_size", HAS_ARG | OPT_INT | OPT_OFFSET | OPT_EXPERT | OPT_INPUT,
 +                                                                     { .off = OFFSET(thread_queue_size) },
 +        "set the maximum number of queued packets from the demuxer" },
 +
 +    /* video options */
 +    { "vframes",      OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_frames },
 +        "set the number of video frames to output", "number" },
 +    { "r",            OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
 +                      OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_rates) },
 +        "set frame rate (Hz value, fraction or abbreviation)", "rate" },
 +    { "s",            OPT_VIDEO | HAS_ARG | OPT_SUBTITLE | OPT_STRING | OPT_SPEC |
 +                      OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_sizes) },
 +        "set frame size (WxH or abbreviation)", "size" },
 +    { "aspect",       OPT_VIDEO | HAS_ARG  | OPT_STRING | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(frame_aspect_ratios) },
 +        "set aspect ratio (4:3, 16:9 or 1.3333, 1.7777)", "aspect" },
 +    { "pix_fmt",      OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
 +                      OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(frame_pix_fmts) },
 +        "set pixel format", "format" },
 +    { "bits_per_raw_sample", OPT_VIDEO | OPT_INT | HAS_ARG,                      { &frame_bits_per_raw_sample },
 +        "set the number of bits per raw sample", "number" },
 +    { "intra",        OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &intra_only },
 +        "deprecated use -g 1" },
 +    { "vn",           OPT_VIDEO | OPT_BOOL  | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(video_disable) },
 +        "disable video" },
 +    { "rc_override",  OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(rc_overrides) },
 +        "rate control override for specific intervals", "override" },
 +    { "vcodec",       OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_INPUT |
 +                      OPT_OUTPUT,                                                { .func_arg = opt_video_codec },
 +        "force video codec ('copy' to copy stream)", "codec" },
 +    { "sameq",        OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
 +        "Removed" },
 +    { "same_quant",   OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_sameq },
 +        "Removed" },
 +    { "timecode",     OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_timecode },
 +        "set initial TimeCode value.", "hh:mm:ss[:;.]ff" },
 +    { "pass",         OPT_VIDEO | HAS_ARG | OPT_SPEC | OPT_INT | OPT_OUTPUT,     { .off = OFFSET(pass) },
 +        "select the pass number (1 to 3)", "n" },
 +    { "passlogfile",  OPT_VIDEO | HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(passlogfiles) },
 +        "select two pass log file name prefix", "prefix" },
 +    { "deinterlace",  OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_deinterlace },
 +        "this option is deprecated, use the yadif filter instead" },
 +    { "psnr",         OPT_VIDEO | OPT_BOOL | OPT_EXPERT,                         { &do_psnr },
 +        "calculate PSNR of compressed frames" },
 +    { "vstats",       OPT_VIDEO | OPT_EXPERT ,                                   { .func_arg = opt_vstats },
 +        "dump video coding statistics to file" },
 +    { "vstats_file",  OPT_VIDEO | HAS_ARG | OPT_EXPERT ,                         { .func_arg = opt_vstats_file },
 +        "dump video coding statistics to file", "file" },
 +    { "vstats_version",  OPT_VIDEO | OPT_INT | HAS_ARG | OPT_EXPERT ,            { &vstats_version },
 +        "Version of the vstats format to use."},
 +    { "vf",           OPT_VIDEO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_video_filters },
 +        "set video filters", "filter_graph" },
 +    { "intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(intra_matrices) },
 +        "specify intra matrix coeffs", "matrix" },
 +    { "inter_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(inter_matrices) },
 +        "specify inter matrix coeffs", "matrix" },
 +    { "chroma_intra_matrix", OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_STRING | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(chroma_intra_matrices) },
 +        "specify intra matrix coeffs", "matrix" },
 +    { "top",          OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_INT| OPT_SPEC |
 +                      OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(top_field_first) },
 +        "top=1/bottom=0/auto=-1 field first", "" },
 +    { "vtag",         OPT_VIDEO | HAS_ARG | OPT_EXPERT  | OPT_PERFILE |
 +                      OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_old2new },
 +        "force video tag/fourcc", "fourcc/tag" },
 +    { "qphist",       OPT_VIDEO | OPT_BOOL | OPT_EXPERT ,                        { &qp_hist },
 +        "show QP histogram" },
 +    { "force_fps",    OPT_VIDEO | OPT_BOOL | OPT_EXPERT  | OPT_SPEC |
 +                      OPT_OUTPUT,                                                { .off = OFFSET(force_fps) },
 +        "force the selected framerate, disable the best supported framerate selection" },
 +    { "streamid",     OPT_VIDEO | HAS_ARG | OPT_EXPERT | OPT_PERFILE |
 +                      OPT_OUTPUT,                                                { .func_arg = opt_streamid },
 +        "set the value of an outfile streamid", "streamIndex:value" },
 +    { "force_key_frames", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
 +                          OPT_SPEC | OPT_OUTPUT,                                 { .off = OFFSET(forced_key_frames) },
 +        "force key frames at specified timestamps", "timestamps" },
 +    { "ab",           OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
 +        "audio bitrate (please use -b:a)", "bitrate" },
 +    { "b",            OPT_VIDEO | HAS_ARG | OPT_PERFILE | OPT_OUTPUT,            { .func_arg = opt_bitrate },
 +        "video bitrate (please use -b:v)", "bitrate" },
 +    { "hwaccel",          OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
 +                          OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccels) },
 +        "use HW accelerated decoding", "hwaccel name" },
 +    { "hwaccel_device",   OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
 +                          OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_devices) },
 +        "select a device for HW acceleration", "devicename" },
 +    { "hwaccel_output_format", OPT_VIDEO | OPT_STRING | HAS_ARG | OPT_EXPERT |
 +                          OPT_SPEC | OPT_INPUT,                                  { .off = OFFSET(hwaccel_output_formats) },
 +        "select output format used with HW accelerated decoding", "format" },
 +#if CONFIG_VDA || CONFIG_VIDEOTOOLBOX
 +    { "videotoolbox_pixfmt", HAS_ARG | OPT_STRING | OPT_EXPERT, { &videotoolbox_pixfmt}, "" },
 +#endif
 +    { "hwaccels",         OPT_EXIT,                                              { .func_arg = show_hwaccels },
 +        "show available HW acceleration methods" },
 +    { "autorotate",       HAS_ARG | OPT_BOOL | OPT_SPEC |
 +                          OPT_EXPERT | OPT_INPUT,                                { .off = OFFSET(autorotate) },
 +        "automatically insert correct rotate filters" },
 +    { "hwaccel_lax_profile_check", OPT_BOOL | OPT_EXPERT,                        { &hwaccel_lax_profile_check},
 +        "attempt to decode anyway if HW accelerated decoder's supported profiles do not exactly match the stream" },
 +
 +    /* audio options */
 +    { "aframes",        OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_frames },
 +        "set the number of audio frames to output", "number" },
 +    { "aq",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_qscale },
 +        "set audio quality (codec-specific)", "quality", },
 +    { "ar",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
 +                        OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_sample_rate) },
 +        "set audio sampling rate (in Hz)", "rate" },
 +    { "ac",             OPT_AUDIO | HAS_ARG  | OPT_INT | OPT_SPEC |
 +                        OPT_INPUT | OPT_OUTPUT,                                    { .off = OFFSET(audio_channels) },
 +        "set number of audio channels", "channels" },
 +    { "an",             OPT_AUDIO | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT,{ .off = OFFSET(audio_disable) },
 +        "disable audio" },
 +    { "acodec",         OPT_AUDIO | HAS_ARG  | OPT_PERFILE |
 +                        OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_audio_codec },
 +        "force audio codec ('copy' to copy stream)", "codec" },
 +    { "atag",           OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
 +                        OPT_OUTPUT,                                                { .func_arg = opt_old2new },
 +        "force audio tag/fourcc", "fourcc/tag" },
 +    { "vol",            OPT_AUDIO | HAS_ARG  | OPT_INT,                            { &audio_volume },
 +        "change audio volume (256=normal)" , "volume" },
 +    { "sample_fmt",     OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_SPEC |
 +                        OPT_STRING | OPT_INPUT | OPT_OUTPUT,                       { .off = OFFSET(sample_fmts) },
 +        "set sample format", "format" },
 +    { "channel_layout", OPT_AUDIO | HAS_ARG  | OPT_EXPERT | OPT_PERFILE |
 +                        OPT_INPUT | OPT_OUTPUT,                                    { .func_arg = opt_channel_layout },
 +        "set channel layout", "layout" },
 +    { "af",             OPT_AUDIO | HAS_ARG  | OPT_PERFILE | OPT_OUTPUT,           { .func_arg = opt_audio_filters },
 +        "set audio filters", "filter_graph" },
 +    { "guess_layout_max", OPT_AUDIO | HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_INPUT, { .off = OFFSET(guess_layout_max) },
 +      "set the maximum number of channels to try to guess the channel layout" },
 +
 +    /* subtitle options */
 +    { "sn",     OPT_SUBTITLE | OPT_BOOL | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(subtitle_disable) },
 +        "disable subtitle" },
 +    { "scodec", OPT_SUBTITLE | HAS_ARG  | OPT_PERFILE | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_subtitle_codec },
 +        "force subtitle codec ('copy' to copy stream)", "codec" },
 +    { "stag",   OPT_SUBTITLE | HAS_ARG  | OPT_EXPERT  | OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new }
 +        , "force subtitle tag/fourcc", "fourcc/tag" },
 +    { "fix_sub_duration", OPT_BOOL | OPT_EXPERT | OPT_SUBTITLE | OPT_SPEC | OPT_INPUT, { .off = OFFSET(fix_sub_duration) },
 +        "fix subtitles duration" },
 +    { "canvas_size", OPT_SUBTITLE | HAS_ARG | OPT_STRING | OPT_SPEC | OPT_INPUT, { .off = OFFSET(canvas_sizes) },
 +        "set canvas size (WxH or abbreviation)", "size" },
 +
 +    /* grab options */
 +    { "vc", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_channel },
 +        "deprecated, use -channel", "channel" },
 +    { "tvstd", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_video_standard },
 +        "deprecated, use -standard", "standard" },
 +    { "isync", OPT_BOOL | OPT_EXPERT, { &input_sync }, "this option is deprecated and does nothing", "" },
 +
 +    /* muxer options */
 +    { "muxdelay",   OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_max_delay) },
 +        "set the maximum demux-decode delay", "seconds" },
 +    { "muxpreload", OPT_FLOAT | HAS_ARG | OPT_EXPERT | OPT_OFFSET | OPT_OUTPUT, { .off = OFFSET(mux_preload) },
 +        "set the initial demux-decode delay", "seconds" },
 +    { "override_ffserver", OPT_BOOL | OPT_EXPERT | OPT_OUTPUT, { &override_ffserver },
 +        "override the options from ffserver", "" },
 +    { "sdp_file", HAS_ARG | OPT_EXPERT | OPT_OUTPUT, { .func_arg = opt_sdp_file },
 +        "specify a file in which to print sdp information", "file" },
 +
 +    { "time_base", HAS_ARG | OPT_STRING | OPT_EXPERT | OPT_SPEC | OPT_OUTPUT, { .off = OFFSET(time_bases) },
 +        "set the desired time base hint for output stream (1:24, 1:48000 or 0.04166, 2.0833e-5)", "ratio" },
 +
 +    { "bsf", HAS_ARG | OPT_STRING | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(bitstream_filters) },
 +        "A comma-separated list of bitstream filters", "bitstream_filters" },
 +    { "absf", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
 +        "deprecated", "audio bitstream_filters" },
 +    { "vbsf", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_old2new },
 +        "deprecated", "video bitstream_filters" },
 +
 +    { "apre", HAS_ARG | OPT_AUDIO | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
 +        "set the audio options to the indicated preset", "preset" },
 +    { "vpre", OPT_VIDEO | HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,    { .func_arg = opt_preset },
 +        "set the video options to the indicated preset", "preset" },
 +    { "spre", HAS_ARG | OPT_SUBTITLE | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT, { .func_arg = opt_preset },
 +        "set the subtitle options to the indicated preset", "preset" },
 +    { "fpre", HAS_ARG | OPT_EXPERT| OPT_PERFILE | OPT_OUTPUT,                { .func_arg = opt_preset },
 +        "set options from indicated preset file", "filename" },
 +
 +    { "max_muxing_queue_size", HAS_ARG | OPT_INT | OPT_SPEC | OPT_EXPERT | OPT_OUTPUT, { .off = OFFSET(max_muxing_queue_size) },
 +        "maximum number of packets that can be buffered while waiting for all streams to initialize", "packets" },
 +
 +    /* data codec support */
 +    { "dcodec", HAS_ARG | OPT_DATA | OPT_PERFILE | OPT_EXPERT | OPT_INPUT | OPT_OUTPUT, { .func_arg = opt_data_codec },
 +        "force data codec ('copy' to copy stream)", "codec" },
 +    { "dn", OPT_BOOL | OPT_VIDEO | OPT_OFFSET | OPT_INPUT | OPT_OUTPUT, { .off = OFFSET(data_disable) },
 +        "disable data" },
 +
 +#if CONFIG_VAAPI
 +    { "vaapi_device", HAS_ARG | OPT_EXPERT, { .func_arg = opt_vaapi_device },
 +        "set VAAPI hardware device (DRM path or X11 display name)", "device" },
 +#endif
 +
 +#if CONFIG_QSV
 +    { "qsv_device", HAS_ARG | OPT_STRING | OPT_EXPERT, { &qsv_device },
 +        "set QSV hardware device (DirectX adapter index, DRM path or X11 display name)", "device"},
 +#endif
 +
 +    { NULL, },
 +};
diff --cc ffplay.c
index 139da9f,0000000..c0b326c
mode 100644,000000..100644
--- /dev/null
+++ b/ffplay.c
@@@ -1,3706 -1,0 +1,3706 @@@
- #include "cmdutils_common_opts.h"
 +/*
 + * Copyright (c) 2003 Fabrice Bellard
 + *
 + * This file is part of FFmpeg.
 + *
 + * FFmpeg is free software; you can redistribute it and/or
 + * modify it under the terms of the GNU Lesser General Public
 + * License as published by the Free Software Foundation; either
 + * version 2.1 of the License, or (at your option) any later version.
 + *
 + * FFmpeg is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 + * Lesser General Public License for more details.
 + *
 + * You should have received a copy of the GNU Lesser General Public
 + * License along with FFmpeg; if not, write to the Free Software
 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 + */
 +
 +/**
 + * @file
 + * simple media player based on the FFmpeg libraries
 + */
 +
 +#include "config.h"
 +#include <inttypes.h>
 +#include <math.h>
 +#include <limits.h>
 +#include <signal.h>
 +#include <stdint.h>
 +
 +#include "libavutil/avstring.h"
 +#include "libavutil/eval.h"
 +#include "libavutil/mathematics.h"
 +#include "libavutil/pixdesc.h"
 +#include "libavutil/imgutils.h"
 +#include "libavutil/dict.h"
 +#include "libavutil/parseutils.h"
 +#include "libavutil/samplefmt.h"
 +#include "libavutil/avassert.h"
 +#include "libavutil/time.h"
 +#include "libavformat/avformat.h"
 +#include "libavdevice/avdevice.h"
 +#include "libswscale/swscale.h"
 +#include "libavutil/opt.h"
 +#include "libavcodec/avfft.h"
 +#include "libswresample/swresample.h"
 +
 +#if CONFIG_AVFILTER
 +# include "libavfilter/avfilter.h"
 +# include "libavfilter/buffersink.h"
 +# include "libavfilter/buffersrc.h"
 +#endif
 +
 +#include <SDL.h>
 +#include <SDL_thread.h>
 +
 +#include "cmdutils.h"
 +
 +#include <assert.h>
 +
 +const char program_name[] = "ffplay";
 +const int program_birth_year = 2003;
 +
 +#define MAX_QUEUE_SIZE (15 * 1024 * 1024)
 +#define MIN_FRAMES 25
 +#define EXTERNAL_CLOCK_MIN_FRAMES 2
 +#define EXTERNAL_CLOCK_MAX_FRAMES 10
 +
 +/* Minimum SDL audio buffer size, in samples. */
 +#define SDL_AUDIO_MIN_BUFFER_SIZE 512
 +/* Calculate actual buffer size keeping in mind not cause too frequent audio callbacks */
 +#define SDL_AUDIO_MAX_CALLBACKS_PER_SEC 30
 +
 +/* Step size for volume control in dB */
 +#define SDL_VOLUME_STEP (0.75)
 +
 +/* no AV sync correction is done if below the minimum AV sync threshold */
 +#define AV_SYNC_THRESHOLD_MIN 0.04
 +/* AV sync correction is done if above the maximum AV sync threshold */
 +#define AV_SYNC_THRESHOLD_MAX 0.1
 +/* If a frame duration is longer than this, it will not be duplicated to compensate AV sync */
 +#define AV_SYNC_FRAMEDUP_THRESHOLD 0.1
 +/* no AV correction is done if too big error */
 +#define AV_NOSYNC_THRESHOLD 10.0
 +
 +/* maximum audio speed change to get correct sync */
 +#define SAMPLE_CORRECTION_PERCENT_MAX 10
 +
 +/* external clock speed adjustment constants for realtime sources based on buffer fullness */
 +#define EXTERNAL_CLOCK_SPEED_MIN  0.900
 +#define EXTERNAL_CLOCK_SPEED_MAX  1.010
 +#define EXTERNAL_CLOCK_SPEED_STEP 0.001
 +
 +/* we use about AUDIO_DIFF_AVG_NB A-V differences to make the average */
 +#define AUDIO_DIFF_AVG_NB   20
 +
 +/* polls for possible required screen refresh at least this often, should be less than 1/fps */
 +#define REFRESH_RATE 0.01
 +
 +/* NOTE: the size must be big enough to compensate the hardware audio buffersize size */
 +/* TODO: We assume that a decoded and resampled frame fits into this buffer */
 +#define SAMPLE_ARRAY_SIZE (8 * 65536)
 +
 +#define CURSOR_HIDE_DELAY 1000000
 +
 +#define USE_ONEPASS_SUBTITLE_RENDER 1
 +
 +static unsigned sws_flags = SWS_BICUBIC;
 +
 +typedef struct MyAVPacketList {
 +    AVPacket pkt;
 +    struct MyAVPacketList *next;
 +    int serial;
 +} MyAVPacketList;
 +
 +typedef struct PacketQueue {
 +    MyAVPacketList *first_pkt, *last_pkt;
 +    int nb_packets;
 +    int size;
 +    int64_t duration;
 +    int abort_request;
 +    int serial;
 +    SDL_mutex *mutex;
 +    SDL_cond *cond;
 +} PacketQueue;
 +
 +#define VIDEO_PICTURE_QUEUE_SIZE 3
 +#define SUBPICTURE_QUEUE_SIZE 16
 +#define SAMPLE_QUEUE_SIZE 9
 +#define FRAME_QUEUE_SIZE FFMAX(SAMPLE_QUEUE_SIZE, FFMAX(VIDEO_PICTURE_QUEUE_SIZE, SUBPICTURE_QUEUE_SIZE))
 +
 +typedef struct AudioParams {
 +    int freq;
 +    int channels;
 +    int64_t channel_layout;
 +    enum AVSampleFormat fmt;
 +    int frame_size;
 +    int bytes_per_sec;
 +} AudioParams;
 +
 +typedef struct Clock {
 +    double pts;           /* clock base */
 +    double pts_drift;     /* clock base minus time at which we updated the clock */
 +    double last_updated;
 +    double speed;
 +    int serial;           /* clock is based on a packet with this serial */
 +    int paused;
 +    int *queue_serial;    /* pointer to the current packet queue serial, used for obsolete clock detection */
 +} Clock;
 +
 +/* Common struct for handling all types of decoded data and allocated render buffers. */
 +typedef struct Frame {
 +    AVFrame *frame;
 +    AVSubtitle sub;
 +    int serial;
 +    double pts;           /* presentation timestamp for the frame */
 +    double duration;      /* estimated duration of the frame */
 +    int64_t pos;          /* byte position of the frame in the input file */
 +    int width;
 +    int height;
 +    int format;
 +    AVRational sar;
 +    int uploaded;
 +    int flip_v;
 +} Frame;
 +
 +typedef struct FrameQueue {
 +    Frame queue[FRAME_QUEUE_SIZE];
 +    int rindex;
 +    int windex;
 +    int size;
 +    int max_size;
 +    int keep_last;
 +    int rindex_shown;
 +    SDL_mutex *mutex;
 +    SDL_cond *cond;
 +    PacketQueue *pktq;
 +} FrameQueue;
 +
 +enum {
 +    AV_SYNC_AUDIO_MASTER, /* default choice */
 +    AV_SYNC_VIDEO_MASTER,
 +    AV_SYNC_EXTERNAL_CLOCK, /* synchronize to an external clock */
 +};
 +
 +typedef struct Decoder {
 +    AVPacket pkt;
 +    PacketQueue *queue;
 +    AVCodecContext *avctx;
 +    int pkt_serial;
 +    int finished;
 +    int packet_pending;
 +    SDL_cond *empty_queue_cond;
 +    int64_t start_pts;
 +    AVRational start_pts_tb;
 +    int64_t next_pts;
 +    AVRational next_pts_tb;
 +    SDL_Thread *decoder_tid;
 +} Decoder;
 +
 +typedef struct VideoState {
 +    SDL_Thread *read_tid;
 +    AVInputFormat *iformat;
 +    int abort_request;
 +    int force_refresh;
 +    int paused;
 +    int last_paused;
 +    int queue_attachments_req;
 +    int seek_req;
 +    int seek_flags;
 +    int64_t seek_pos;
 +    int64_t seek_rel;
 +    int read_pause_return;
 +    AVFormatContext *ic;
 +    int realtime;
 +
 +    Clock audclk;
 +    Clock vidclk;
 +    Clock extclk;
 +
 +    FrameQueue pictq;
 +    FrameQueue subpq;
 +    FrameQueue sampq;
 +
 +    Decoder auddec;
 +    Decoder viddec;
 +    Decoder subdec;
 +
 +    int audio_stream;
 +
 +    int av_sync_type;
 +
 +    double audio_clock;
 +    int audio_clock_serial;
 +    double audio_diff_cum; /* used for AV difference average computation */
 +    double audio_diff_avg_coef;
 +    double audio_diff_threshold;
 +    int audio_diff_avg_count;
 +    AVStream *audio_st;
 +    PacketQueue audioq;
 +    int audio_hw_buf_size;
 +    uint8_t *audio_buf;
 +    uint8_t *audio_buf1;
 +    unsigned int audio_buf_size; /* in bytes */
 +    unsigned int audio_buf1_size;
 +    int audio_buf_index; /* in bytes */
 +    int audio_write_buf_size;
 +    int audio_volume;
 +    int muted;
 +    struct AudioParams audio_src;
 +#if CONFIG_AVFILTER
 +    struct AudioParams audio_filter_src;
 +#endif
 +    struct AudioParams audio_tgt;
 +    struct SwrContext *swr_ctx;
 +    int frame_drops_early;
 +    int frame_drops_late;
 +
 +    enum ShowMode {
 +        SHOW_MODE_NONE = -1, SHOW_MODE_VIDEO = 0, SHOW_MODE_WAVES, SHOW_MODE_RDFT, SHOW_MODE_NB
 +    } show_mode;
 +    int16_t sample_array[SAMPLE_ARRAY_SIZE];
 +    int sample_array_index;
 +    int last_i_start;
 +    RDFTContext *rdft;
 +    int rdft_bits;
 +    FFTSample *rdft_data;
 +    int xpos;
 +    double last_vis_time;
 +    SDL_Texture *vis_texture;
 +    SDL_Texture *sub_texture;
 +    SDL_Texture *vid_texture;
 +
 +    int subtitle_stream;
 +    AVStream *subtitle_st;
 +    PacketQueue subtitleq;
 +
 +    double frame_timer;
 +    double frame_last_returned_time;
 +    double frame_last_filter_delay;
 +    int video_stream;
 +    AVStream *video_st;
 +    PacketQueue videoq;
 +    double max_frame_duration;      // maximum duration of a frame - above this, we consider the jump a timestamp discontinuity
 +    struct SwsContext *img_convert_ctx;
 +    struct SwsContext *sub_convert_ctx;
 +    int eof;
 +
 +    char *filename;
 +    int width, height, xleft, ytop;
 +    int step;
 +
 +#if CONFIG_AVFILTER
 +    int vfilter_idx;
 +    AVFilterContext *in_video_filter;   // the first filter in the video chain
 +    AVFilterContext *out_video_filter;  // the last filter in the video chain
 +    AVFilterContext *in_audio_filter;   // the first filter in the audio chain
 +    AVFilterContext *out_audio_filter;  // the last filter in the audio chain
 +    AVFilterGraph *agraph;              // audio filter graph
 +#endif
 +
 +    int last_video_stream, last_audio_stream, last_subtitle_stream;
 +
 +    SDL_cond *continue_read_thread;
 +} VideoState;
 +
 +/* options specified by the user */
 +static AVInputFormat *file_iformat;
 +static const char *input_filename;
 +static const char *window_title;
 +static int default_width  = 640;
 +static int default_height = 480;
 +static int screen_width  = 0;
 +static int screen_height = 0;
 +static int audio_disable;
 +static int video_disable;
 +static int subtitle_disable;
 +static const char* wanted_stream_spec[AVMEDIA_TYPE_NB] = {0};
 +static int seek_by_bytes = -1;
 +static int display_disable;
 +static int borderless;
 +static int startup_volume = 100;
 +static int show_status = 1;
 +static int av_sync_type = AV_SYNC_AUDIO_MASTER;
 +static int64_t start_time = AV_NOPTS_VALUE;
 +static int64_t duration = AV_NOPTS_VALUE;
 +static int fast = 0;
 +static int genpts = 0;
 +static int lowres = 0;
 +static int decoder_reorder_pts = -1;
 +static int autoexit;
 +static int exit_on_keydown;
 +static int exit_on_mousedown;
 +static int loop = 1;
 +static int framedrop = -1;
 +static int infinite_buffer = -1;
 +static enum ShowMode show_mode = SHOW_MODE_NONE;
 +static const char *audio_codec_name;
 +static const char *subtitle_codec_name;
 +static const char *video_codec_name;
 +double rdftspeed = 0.02;
 +static int64_t cursor_last_shown;
 +static int cursor_hidden = 0;
 +#if CONFIG_AVFILTER
 +static const char **vfilters_list = NULL;
 +static int nb_vfilters = 0;
 +static char *afilters = NULL;
 +#endif
 +static int autorotate = 1;
 +
 +/* current context */
 +static int is_full_screen;
 +static int64_t audio_callback_time;
 +
 +static AVPacket flush_pkt;
 +
 +#define FF_QUIT_EVENT    (SDL_USEREVENT + 2)
 +
 +static SDL_Window *window;
 +static SDL_Renderer *renderer;
 +
 +#if CONFIG_AVFILTER
 +static int opt_add_vfilter(void *optctx, const char *opt, const char *arg)
 +{
 +    GROW_ARRAY(vfilters_list, nb_vfilters);
 +    vfilters_list[nb_vfilters - 1] = arg;
 +    return 0;
 +}
 +#endif
 +
 +static inline
 +int cmp_audio_fmts(enum AVSampleFormat fmt1, int64_t channel_count1,
 +                   enum AVSampleFormat fmt2, int64_t channel_count2)
 +{
 +    /* If channel count == 1, planar and non-planar formats are the same */
 +    if (channel_count1 == 1 && channel_count2 == 1)
 +        return av_get_packed_sample_fmt(fmt1) != av_get_packed_sample_fmt(fmt2);
 +    else
 +        return channel_count1 != channel_count2 || fmt1 != fmt2;
 +}
 +
 +static inline
 +int64_t get_valid_channel_layout(int64_t channel_layout, int channels)
 +{
 +    if (channel_layout && av_get_channel_layout_nb_channels(channel_layout) == channels)
 +        return channel_layout;
 +    else
 +        return 0;
 +}
 +
 +static int packet_queue_put_private(PacketQueue *q, AVPacket *pkt)
 +{
 +    MyAVPacketList *pkt1;
 +
 +    if (q->abort_request)
 +       return -1;
 +
 +    pkt1 = av_malloc(sizeof(MyAVPacketList));
 +    if (!pkt1)
 +        return -1;
 +    pkt1->pkt = *pkt;
 +    pkt1->next = NULL;
 +    if (pkt == &flush_pkt)
 +        q->serial++;
 +    pkt1->serial = q->serial;
 +
 +    if (!q->last_pkt)
 +        q->first_pkt = pkt1;
 +    else
 +        q->last_pkt->next = pkt1;
 +    q->last_pkt = pkt1;
 +    q->nb_packets++;
 +    q->size += pkt1->pkt.size + sizeof(*pkt1);
 +    q->duration += pkt1->pkt.duration;
 +    /* XXX: should duplicate packet data in DV case */
 +    SDL_CondSignal(q->cond);
 +    return 0;
 +}
 +
 +static int packet_queue_put(PacketQueue *q, AVPacket *pkt)
 +{
 +    int ret;
 +
 +    SDL_LockMutex(q->mutex);
 +    ret = packet_queue_put_private(q, pkt);
 +    SDL_UnlockMutex(q->mutex);
 +
 +    if (pkt != &flush_pkt && ret < 0)
 +        av_packet_unref(pkt);
 +
 +    return ret;
 +}
 +
 +static int packet_queue_put_nullpacket(PacketQueue *q, int stream_index)
 +{
 +    AVPacket pkt1, *pkt = &pkt1;
 +    av_init_packet(pkt);
 +    pkt->data = NULL;
 +    pkt->size = 0;
 +    pkt->stream_index = stream_index;
 +    return packet_queue_put(q, pkt);
 +}
 +
 +/* packet queue handling */
 +static int packet_queue_init(PacketQueue *q)
 +{
 +    memset(q, 0, sizeof(PacketQueue));
 +    q->mutex = SDL_CreateMutex();
 +    if (!q->mutex) {
 +        av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());
 +        return AVERROR(ENOMEM);
 +    }
 +    q->cond = SDL_CreateCond();
 +    if (!q->cond) {
 +        av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());
 +        return AVERROR(ENOMEM);
 +    }
 +    q->abort_request = 1;
 +    return 0;
 +}
 +
 +static void packet_queue_flush(PacketQueue *q)
 +{
 +    MyAVPacketList *pkt, *pkt1;
 +
 +    SDL_LockMutex(q->mutex);
 +    for (pkt = q->first_pkt; pkt; pkt = pkt1) {
 +        pkt1 = pkt->next;
 +        av_packet_unref(&pkt->pkt);
 +        av_freep(&pkt);
 +    }
 +    q->last_pkt = NULL;
 +    q->first_pkt = NULL;
 +    q->nb_packets = 0;
 +    q->size = 0;
 +    q->duration = 0;
 +    SDL_UnlockMutex(q->mutex);
 +}
 +
 +static void packet_queue_destroy(PacketQueue *q)
 +{
 +    packet_queue_flush(q);
 +    SDL_DestroyMutex(q->mutex);
 +    SDL_DestroyCond(q->cond);
 +}
 +
 +static void packet_queue_abort(PacketQueue *q)
 +{
 +    SDL_LockMutex(q->mutex);
 +
 +    q->abort_request = 1;
 +
 +    SDL_CondSignal(q->cond);
 +
 +    SDL_UnlockMutex(q->mutex);
 +}
 +
 +static void packet_queue_start(PacketQueue *q)
 +{
 +    SDL_LockMutex(q->mutex);
 +    q->abort_request = 0;
 +    packet_queue_put_private(q, &flush_pkt);
 +    SDL_UnlockMutex(q->mutex);
 +}
 +
 +/* return < 0 if aborted, 0 if no packet and > 0 if packet.  */
 +static int packet_queue_get(PacketQueue *q, AVPacket *pkt, int block, int *serial)
 +{
 +    MyAVPacketList *pkt1;
 +    int ret;
 +
 +    SDL_LockMutex(q->mutex);
 +
 +    for (;;) {
 +        if (q->abort_request) {
 +            ret = -1;
 +            break;
 +        }
 +
 +        pkt1 = q->first_pkt;
 +        if (pkt1) {
 +            q->first_pkt = pkt1->next;
 +            if (!q->first_pkt)
 +                q->last_pkt = NULL;
 +            q->nb_packets--;
 +            q->size -= pkt1->pkt.size + sizeof(*pkt1);
 +            q->duration -= pkt1->pkt.duration;
 +            *pkt = pkt1->pkt;
 +            if (serial)
 +                *serial = pkt1->serial;
 +            av_free(pkt1);
 +            ret = 1;
 +            break;
 +        } else if (!block) {
 +            ret = 0;
 +            break;
 +        } else {
 +            SDL_CondWait(q->cond, q->mutex);
 +        }
 +    }
 +    SDL_UnlockMutex(q->mutex);
 +    return ret;
 +}
 +
 +static void decoder_init(Decoder *d, AVCodecContext *avctx, PacketQueue *queue, SDL_cond *empty_queue_cond) {
 +    memset(d, 0, sizeof(Decoder));
 +    d->avctx = avctx;
 +    d->queue = queue;
 +    d->empty_queue_cond = empty_queue_cond;
 +    d->start_pts = AV_NOPTS_VALUE;
 +    d->pkt_serial = -1;
 +}
 +
 +static int decoder_decode_frame(Decoder *d, AVFrame *frame, AVSubtitle *sub) {
 +    int ret = AVERROR(EAGAIN);
 +
 +    for (;;) {
 +        AVPacket pkt;
 +
 +        if (d->queue->serial == d->pkt_serial) {
 +            do {
 +                if (d->queue->abort_request)
 +                    return -1;
 +
 +                switch (d->avctx->codec_type) {
 +                    case AVMEDIA_TYPE_VIDEO:
 +                        ret = avcodec_receive_frame(d->avctx, frame);
 +                        if (ret >= 0) {
 +                            if (decoder_reorder_pts == -1) {
 +                                frame->pts = frame->best_effort_timestamp;
 +                            } else if (!decoder_reorder_pts) {
 +                                frame->pts = frame->pkt_dts;
 +                            }
 +                        }
 +                        break;
 +                    case AVMEDIA_TYPE_AUDIO:
 +                        ret = avcodec_receive_frame(d->avctx, frame);
 +                        if (ret >= 0) {
 +                            AVRational tb = (AVRational){1, frame->sample_rate};
 +                            if (frame->pts != AV_NOPTS_VALUE)
 +                                frame->pts = av_rescale_q(frame->pts, av_codec_get_pkt_timebase(d->avctx), tb);
 +                            else if (d->next_pts != AV_NOPTS_VALUE)
 +                                frame->pts = av_rescale_q(d->next_pts, d->next_pts_tb, tb);
 +                            if (frame->pts != AV_NOPTS_VALUE) {
 +                                d->next_pts = frame->pts + frame->nb_samples;
 +                                d->next_pts_tb = tb;
 +                            }
 +                        }
 +                        break;
 +                }
 +                if (ret == AVERROR_EOF) {
 +                    d->finished = d->pkt_serial;
 +                    avcodec_flush_buffers(d->avctx);
 +                    return 0;
 +                }
 +                if (ret >= 0)
 +                    return 1;
 +            } while (ret != AVERROR(EAGAIN));
 +        }
 +
 +        do {
 +            if (d->queue->nb_packets == 0)
 +                SDL_CondSignal(d->empty_queue_cond);
 +            if (d->packet_pending) {
 +                av_packet_move_ref(&pkt, &d->pkt);
 +                d->packet_pending = 0;
 +            } else {
 +                if (packet_queue_get(d->queue, &pkt, 1, &d->pkt_serial) < 0)
 +                    return -1;
 +            }
 +        } while (d->queue->serial != d->pkt_serial);
 +
 +        if (pkt.data == flush_pkt.data) {
 +            avcodec_flush_buffers(d->avctx);
 +            d->finished = 0;
 +            d->next_pts = d->start_pts;
 +            d->next_pts_tb = d->start_pts_tb;
 +        } else {
 +            if (d->avctx->codec_type == AVMEDIA_TYPE_SUBTITLE) {
 +                int got_frame = 0;
 +                ret = avcodec_decode_subtitle2(d->avctx, sub, &got_frame, &pkt);
 +                if (ret < 0) {
 +                    ret = AVERROR(EAGAIN);
 +                } else {
 +                    if (got_frame && !pkt.data) {
 +                       d->packet_pending = 1;
 +                       av_packet_move_ref(&d->pkt, &pkt);
 +                    }
 +                    ret = got_frame ? 0 : (pkt.data ? AVERROR(EAGAIN) : AVERROR_EOF);
 +                }
 +            } else {
 +                if (avcodec_send_packet(d->avctx, &pkt) == AVERROR(EAGAIN)) {
 +                    av_log(d->avctx, AV_LOG_ERROR, "Receive_frame and send_packet both returned EAGAIN, which is an API violation.\n");
 +                    d->packet_pending = 1;
 +                    av_packet_move_ref(&d->pkt, &pkt);
 +                }
 +            }
 +            av_packet_unref(&pkt);
 +        }
 +    }
 +}
 +
 +static void decoder_destroy(Decoder *d) {
 +    av_packet_unref(&d->pkt);
 +    avcodec_free_context(&d->avctx);
 +}
 +
 +static void frame_queue_unref_item(Frame *vp)
 +{
 +    av_frame_unref(vp->frame);
 +    avsubtitle_free(&vp->sub);
 +}
 +
 +static int frame_queue_init(FrameQueue *f, PacketQueue *pktq, int max_size, int keep_last)
 +{
 +    int i;
 +    memset(f, 0, sizeof(FrameQueue));
 +    if (!(f->mutex = SDL_CreateMutex())) {
 +        av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());
 +        return AVERROR(ENOMEM);
 +    }
 +    if (!(f->cond = SDL_CreateCond())) {
 +        av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());
 +        return AVERROR(ENOMEM);
 +    }
 +    f->pktq = pktq;
 +    f->max_size = FFMIN(max_size, FRAME_QUEUE_SIZE);
 +    f->keep_last = !!keep_last;
 +    for (i = 0; i < f->max_size; i++)
 +        if (!(f->queue[i].frame = av_frame_alloc()))
 +            return AVERROR(ENOMEM);
 +    return 0;
 +}
 +
 +static void frame_queue_destory(FrameQueue *f)
 +{
 +    int i;
 +    for (i = 0; i < f->max_size; i++) {
 +        Frame *vp = &f->queue[i];
 +        frame_queue_unref_item(vp);
 +        av_frame_free(&vp->frame);
 +    }
 +    SDL_DestroyMutex(f->mutex);
 +    SDL_DestroyCond(f->cond);
 +}
 +
 +static void frame_queue_signal(FrameQueue *f)
 +{
 +    SDL_LockMutex(f->mutex);
 +    SDL_CondSignal(f->cond);
 +    SDL_UnlockMutex(f->mutex);
 +}
 +
 +static Frame *frame_queue_peek(FrameQueue *f)
 +{
 +    return &f->queue[(f->rindex + f->rindex_shown) % f->max_size];
 +}
 +
 +static Frame *frame_queue_peek_next(FrameQueue *f)
 +{
 +    return &f->queue[(f->rindex + f->rindex_shown + 1) % f->max_size];
 +}
 +
 +static Frame *frame_queue_peek_last(FrameQueue *f)
 +{
 +    return &f->queue[f->rindex];
 +}
 +
 +static Frame *frame_queue_peek_writable(FrameQueue *f)
 +{
 +    /* wait until we have space to put a new frame */
 +    SDL_LockMutex(f->mutex);
 +    while (f->size >= f->max_size &&
 +           !f->pktq->abort_request) {
 +        SDL_CondWait(f->cond, f->mutex);
 +    }
 +    SDL_UnlockMutex(f->mutex);
 +
 +    if (f->pktq->abort_request)
 +        return NULL;
 +
 +    return &f->queue[f->windex];
 +}
 +
 +static Frame *frame_queue_peek_readable(FrameQueue *f)
 +{
 +    /* wait until we have a readable a new frame */
 +    SDL_LockMutex(f->mutex);
 +    while (f->size - f->rindex_shown <= 0 &&
 +           !f->pktq->abort_request) {
 +        SDL_CondWait(f->cond, f->mutex);
 +    }
 +    SDL_UnlockMutex(f->mutex);
 +
 +    if (f->pktq->abort_request)
 +        return NULL;
 +
 +    return &f->queue[(f->rindex + f->rindex_shown) % f->max_size];
 +}
 +
 +static void frame_queue_push(FrameQueue *f)
 +{
 +    if (++f->windex == f->max_size)
 +        f->windex = 0;
 +    SDL_LockMutex(f->mutex);
 +    f->size++;
 +    SDL_CondSignal(f->cond);
 +    SDL_UnlockMutex(f->mutex);
 +}
 +
 +static void frame_queue_next(FrameQueue *f)
 +{
 +    if (f->keep_last && !f->rindex_shown) {
 +        f->rindex_shown = 1;
 +        return;
 +    }
 +    frame_queue_unref_item(&f->queue[f->rindex]);
 +    if (++f->rindex == f->max_size)
 +        f->rindex = 0;
 +    SDL_LockMutex(f->mutex);
 +    f->size--;
 +    SDL_CondSignal(f->cond);
 +    SDL_UnlockMutex(f->mutex);
 +}
 +
 +/* return the number of undisplayed frames in the queue */
 +static int frame_queue_nb_remaining(FrameQueue *f)
 +{
 +    return f->size - f->rindex_shown;
 +}
 +
 +/* return last shown position */
 +static int64_t frame_queue_last_pos(FrameQueue *f)
 +{
 +    Frame *fp = &f->queue[f->rindex];
 +    if (f->rindex_shown && fp->serial == f->pktq->serial)
 +        return fp->pos;
 +    else
 +        return -1;
 +}
 +
 +static void decoder_abort(Decoder *d, FrameQueue *fq)
 +{
 +    packet_queue_abort(d->queue);
 +    frame_queue_signal(fq);
 +    SDL_WaitThread(d->decoder_tid, NULL);
 +    d->decoder_tid = NULL;
 +    packet_queue_flush(d->queue);
 +}
 +
 +static inline void fill_rectangle(int x, int y, int w, int h)
 +{
 +    SDL_Rect rect;
 +    rect.x = x;
 +    rect.y = y;
 +    rect.w = w;
 +    rect.h = h;
 +    if (w && h)
 +        SDL_RenderFillRect(renderer, &rect);
 +}
 +
 +static int realloc_texture(SDL_Texture **texture, Uint32 new_format, int new_width, int new_height, SDL_BlendMode blendmode, int init_texture)
 +{
 +    Uint32 format;
 +    int access, w, h;
 +    if (SDL_QueryTexture(*texture, &format, &access, &w, &h) < 0 || new_width != w || new_height != h || new_format != format) {
 +        void *pixels;
 +        int pitch;
 +        SDL_DestroyTexture(*texture);
 +        if (!(*texture = SDL_CreateTexture(renderer, new_format, SDL_TEXTUREACCESS_STREAMING, new_width, new_height)))
 +            return -1;
 +        if (SDL_SetTextureBlendMode(*texture, blendmode) < 0)
 +            return -1;
 +        if (init_texture) {
 +            if (SDL_LockTexture(*texture, NULL, &pixels, &pitch) < 0)
 +                return -1;
 +            memset(pixels, 0, pitch * new_height);
 +            SDL_UnlockTexture(*texture);
 +        }
 +    }
 +    return 0;
 +}
 +
 +static void calculate_display_rect(SDL_Rect *rect,
 +                                   int scr_xleft, int scr_ytop, int scr_width, int scr_height,
 +                                   int pic_width, int pic_height, AVRational pic_sar)
 +{
 +    float aspect_ratio;
 +    int width, height, x, y;
 +
 +    if (pic_sar.num == 0)
 +        aspect_ratio = 0;
 +    else
 +        aspect_ratio = av_q2d(pic_sar);
 +
 +    if (aspect_ratio <= 0.0)
 +        aspect_ratio = 1.0;
 +    aspect_ratio *= (float)pic_width / (float)pic_height;
 +
 +    /* XXX: we suppose the screen has a 1.0 pixel ratio */
 +    height = scr_height;
 +    width = lrint(height * aspect_ratio) & ~1;
 +    if (width > scr_width) {
 +        width = scr_width;
 +        height = lrint(width / aspect_ratio) & ~1;
 +    }
 +    x = (scr_width - width) / 2;
 +    y = (scr_height - height) / 2;
 +    rect->x = scr_xleft + x;
 +    rect->y = scr_ytop  + y;
 +    rect->w = FFMAX(width,  1);
 +    rect->h = FFMAX(height, 1);
 +}
 +
 +static int upload_texture(SDL_Texture *tex, AVFrame *frame, struct SwsContext **img_convert_ctx) {
 +    int ret = 0;
 +    switch (frame->format) {
 +        case AV_PIX_FMT_YUV420P:
 +            if (frame->linesize[0] < 0 || frame->linesize[1] < 0 || frame->linesize[2] < 0) {
 +                av_log(NULL, AV_LOG_ERROR, "Negative linesize is not supported for YUV.\n");
 +                return -1;
 +            }
 +            ret = SDL_UpdateYUVTexture(tex, NULL, frame->data[0], frame->linesize[0],
 +                                                  frame->data[1], frame->linesize[1],
 +                                                  frame->data[2], frame->linesize[2]);
 +            break;
 +        case AV_PIX_FMT_BGRA:
 +            if (frame->linesize[0] < 0) {
 +                ret = SDL_UpdateTexture(tex, NULL, frame->data[0] + frame->linesize[0] * (frame->height - 1), -frame->linesize[0]);
 +            } else {
 +                ret = SDL_UpdateTexture(tex, NULL, frame->data[0], frame->linesize[0]);
 +            }
 +            break;
 +        default:
 +            /* This should only happen if we are not using avfilter... */
 +            *img_convert_ctx = sws_getCachedContext(*img_convert_ctx,
 +                frame->width, frame->height, frame->format, frame->width, frame->height,
 +                AV_PIX_FMT_BGRA, sws_flags, NULL, NULL, NULL);
 +            if (*img_convert_ctx != NULL) {
 +                uint8_t *pixels[4];
 +                int pitch[4];
 +                if (!SDL_LockTexture(tex, NULL, (void **)pixels, pitch)) {
 +                    sws_scale(*img_convert_ctx, (const uint8_t * const *)frame->data, frame->linesize,
 +                              0, frame->height, pixels, pitch);
 +                    SDL_UnlockTexture(tex);
 +                }
 +            } else {
 +                av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n");
 +                ret = -1;
 +            }
 +            break;
 +    }
 +    return ret;
 +}
 +
 +static void video_image_display(VideoState *is)
 +{
 +    Frame *vp;
 +    Frame *sp = NULL;
 +    SDL_Rect rect;
 +
 +    vp = frame_queue_peek_last(&is->pictq);
 +    if (is->subtitle_st) {
 +        if (frame_queue_nb_remaining(&is->subpq) > 0) {
 +            sp = frame_queue_peek(&is->subpq);
 +
 +            if (vp->pts >= sp->pts + ((float) sp->sub.start_display_time / 1000)) {
 +                if (!sp->uploaded) {
 +                    uint8_t* pixels[4];
 +                    int pitch[4];
 +                    int i;
 +                    if (!sp->width || !sp->height) {
 +                        sp->width = vp->width;
 +                        sp->height = vp->height;
 +                    }
 +                    if (realloc_texture(&is->sub_texture, SDL_PIXELFORMAT_ARGB8888, sp->width, sp->height, SDL_BLENDMODE_BLEND, 1) < 0)
 +                        return;
 +
 +                    for (i = 0; i < sp->sub.num_rects; i++) {
 +                        AVSubtitleRect *sub_rect = sp->sub.rects[i];
 +
 +                        sub_rect->x = av_clip(sub_rect->x, 0, sp->width );
 +                        sub_rect->y = av_clip(sub_rect->y, 0, sp->height);
 +                        sub_rect->w = av_clip(sub_rect->w, 0, sp->width  - sub_rect->x);
 +                        sub_rect->h = av_clip(sub_rect->h, 0, sp->height - sub_rect->y);
 +
 +                        is->sub_convert_ctx = sws_getCachedContext(is->sub_convert_ctx,
 +                            sub_rect->w, sub_rect->h, AV_PIX_FMT_PAL8,
 +                            sub_rect->w, sub_rect->h, AV_PIX_FMT_BGRA,
 +                            0, NULL, NULL, NULL);
 +                        if (!is->sub_convert_ctx) {
 +                            av_log(NULL, AV_LOG_FATAL, "Cannot initialize the conversion context\n");
 +                            return;
 +                        }
 +                        if (!SDL_LockTexture(is->sub_texture, (SDL_Rect *)sub_rect, (void **)pixels, pitch)) {
 +                            sws_scale(is->sub_convert_ctx, (const uint8_t * const *)sub_rect->data, sub_rect->linesize,
 +                                      0, sub_rect->h, pixels, pitch);
 +                            SDL_UnlockTexture(is->sub_texture);
 +                        }
 +                    }
 +                    sp->uploaded = 1;
 +                }
 +            } else
 +                sp = NULL;
 +        }
 +    }
 +
 +    calculate_display_rect(&rect, is->xleft, is->ytop, is->width, is->height, vp->width, vp->height, vp->sar);
 +
 +    if (!vp->uploaded) {
 +        int sdl_pix_fmt = vp->frame->format == AV_PIX_FMT_YUV420P ? SDL_PIXELFORMAT_YV12 : SDL_PIXELFORMAT_ARGB8888;
 +        if (realloc_texture(&is->vid_texture, sdl_pix_fmt, vp->frame->width, vp->frame->height, SDL_BLENDMODE_NONE, 0) < 0)
 +            return;
 +        if (upload_texture(is->vid_texture, vp->frame, &is->img_convert_ctx) < 0)
 +            return;
 +        vp->uploaded = 1;
 +        vp->flip_v = vp->frame->linesize[0] < 0;
 +    }
 +
 +    SDL_RenderCopyEx(renderer, is->vid_texture, NULL, &rect, 0, NULL, vp->flip_v ? SDL_FLIP_VERTICAL : 0);
 +    if (sp) {
 +#if USE_ONEPASS_SUBTITLE_RENDER
 +        SDL_RenderCopy(renderer, is->sub_texture, NULL, &rect);
 +#else
 +        int i;
 +        double xratio = (double)rect.w / (double)sp->width;
 +        double yratio = (double)rect.h / (double)sp->height;
 +        for (i = 0; i < sp->sub.num_rects; i++) {
 +            SDL_Rect *sub_rect = (SDL_Rect*)sp->sub.rects[i];
 +            SDL_Rect target = {.x = rect.x + sub_rect->x * xratio,
 +                               .y = rect.y + sub_rect->y * yratio,
 +                               .w = sub_rect->w * xratio,
 +                               .h = sub_rect->h * yratio};
 +            SDL_RenderCopy(renderer, is->sub_texture, sub_rect, &target);
 +        }
 +#endif
 +    }
 +}
 +
 +static inline int compute_mod(int a, int b)
 +{
 +    return a < 0 ? a%b + b : a%b;
 +}
 +
 +static void video_audio_display(VideoState *s)
 +{
 +    int i, i_start, x, y1, y, ys, delay, n, nb_display_channels;
 +    int ch, channels, h, h2;
 +    int64_t time_diff;
 +    int rdft_bits, nb_freq;
 +
 +    for (rdft_bits = 1; (1 << rdft_bits) < 2 * s->height; rdft_bits++)
 +        ;
 +    nb_freq = 1 << (rdft_bits - 1);
 +
 +    /* compute display index : center on currently output samples */
 +    channels = s->audio_tgt.channels;
 +    nb_display_channels = channels;
 +    if (!s->paused) {
 +        int data_used= s->show_mode == SHOW_MODE_WAVES ? s->width : (2*nb_freq);
 +        n = 2 * channels;
 +        delay = s->audio_write_buf_size;
 +        delay /= n;
 +
 +        /* to be more precise, we take into account the time spent since
 +           the last buffer computation */
 +        if (audio_callback_time) {
 +            time_diff = av_gettime_relative() - audio_callback_time;
 +            delay -= (time_diff * s->audio_tgt.freq) / 1000000;
 +        }
 +
 +        delay += 2 * data_used;
 +        if (delay < data_used)
 +            delay = data_used;
 +
 +        i_start= x = compute_mod(s->sample_array_index - delay * channels, SAMPLE_ARRAY_SIZE);
 +        if (s->show_mode == SHOW_MODE_WAVES) {
 +            h = INT_MIN;
 +            for (i = 0; i < 1000; i += channels) {
 +                int idx = (SAMPLE_ARRAY_SIZE + x - i) % SAMPLE_ARRAY_SIZE;
 +                int a = s->sample_array[idx];
 +                int b = s->sample_array[(idx + 4 * channels) % SAMPLE_ARRAY_SIZE];
 +                int c = s->sample_array[(idx + 5 * channels) % SAMPLE_ARRAY_SIZE];
 +                int d = s->sample_array[(idx + 9 * channels) % SAMPLE_ARRAY_SIZE];
 +                int score = a - d;
 +                if (h < score && (b ^ c) < 0) {
 +                    h = score;
 +                    i_start = idx;
 +                }
 +            }
 +        }
 +
 +        s->last_i_start = i_start;
 +    } else {
 +        i_start = s->last_i_start;
 +    }
 +
 +    if (s->show_mode == SHOW_MODE_WAVES) {
 +        SDL_SetRenderDrawColor(renderer, 255, 255, 255, 255);
 +
 +        /* total height for one channel */
 +        h = s->height / nb_display_channels;
 +        /* graph height / 2 */
 +        h2 = (h * 9) / 20;
 +        for (ch = 0; ch < nb_display_channels; ch++) {
 +            i = i_start + ch;
 +            y1 = s->ytop + ch * h + (h / 2); /* position of center line */
 +            for (x = 0; x < s->width; x++) {
 +                y = (s->sample_array[i] * h2) >> 15;
 +                if (y < 0) {
 +                    y = -y;
 +                    ys = y1 - y;
 +                } else {
 +                    ys = y1;
 +                }
 +                fill_rectangle(s->xleft + x, ys, 1, y);
 +                i += channels;
 +                if (i >= SAMPLE_ARRAY_SIZE)
 +                    i -= SAMPLE_ARRAY_SIZE;
 +            }
 +        }
 +
 +        SDL_SetRenderDrawColor(renderer, 0, 0, 255, 255);
 +
 +        for (ch = 1; ch < nb_display_channels; ch++) {
 +            y = s->ytop + ch * h;
 +            fill_rectangle(s->xleft, y, s->width, 1);
 +        }
 +    } else {
 +        if (realloc_texture(&s->vis_texture, SDL_PIXELFORMAT_ARGB8888, s->width, s->height, SDL_BLENDMODE_NONE, 1) < 0)
 +            return;
 +
 +        nb_display_channels= FFMIN(nb_display_channels, 2);
 +        if (rdft_bits != s->rdft_bits) {
 +            av_rdft_end(s->rdft);
 +            av_free(s->rdft_data);
 +            s->rdft = av_rdft_init(rdft_bits, DFT_R2C);
 +            s->rdft_bits = rdft_bits;
 +            s->rdft_data = av_malloc_array(nb_freq, 4 *sizeof(*s->rdft_data));
 +        }
 +        if (!s->rdft || !s->rdft_data){
 +            av_log(NULL, AV_LOG_ERROR, "Failed to allocate buffers for RDFT, switching to waves display\n");
 +            s->show_mode = SHOW_MODE_WAVES;
 +        } else {
 +            FFTSample *data[2];
 +            SDL_Rect rect = {.x = s->xpos, .y = 0, .w = 1, .h = s->height};
 +            uint32_t *pixels;
 +            int pitch;
 +            for (ch = 0; ch < nb_display_channels; ch++) {
 +                data[ch] = s->rdft_data + 2 * nb_freq * ch;
 +                i = i_start + ch;
 +                for (x = 0; x < 2 * nb_freq; x++) {
 +                    double w = (x-nb_freq) * (1.0 / nb_freq);
 +                    data[ch][x] = s->sample_array[i] * (1.0 - w * w);
 +                    i += channels;
 +                    if (i >= SAMPLE_ARRAY_SIZE)
 +                        i -= SAMPLE_ARRAY_SIZE;
 +                }
 +                av_rdft_calc(s->rdft, data[ch]);
 +            }
 +            /* Least efficient way to do this, we should of course
 +             * directly access it but it is more than fast enough. */
 +            if (!SDL_LockTexture(s->vis_texture, &rect, (void **)&pixels, &pitch)) {
 +                pitch >>= 2;
 +                pixels += pitch * s->height;
 +                for (y = 0; y < s->height; y++) {
 +                    double w = 1 / sqrt(nb_freq);
 +                    int a = sqrt(w * sqrt(data[0][2 * y + 0] * data[0][2 * y + 0] + data[0][2 * y + 1] * data[0][2 * y + 1]));
 +                    int b = (nb_display_channels == 2 ) ? sqrt(w * hypot(data[1][2 * y + 0], data[1][2 * y + 1]))
 +                                                        : a;
 +                    a = FFMIN(a, 255);
 +                    b = FFMIN(b, 255);
 +                    pixels -= pitch;
 +                    *pixels = (a << 16) + (b << 8) + ((a+b) >> 1);
 +                }
 +                SDL_UnlockTexture(s->vis_texture);
 +            }
 +            SDL_RenderCopy(renderer, s->vis_texture, NULL, NULL);
 +        }
 +        if (!s->paused)
 +            s->xpos++;
 +        if (s->xpos >= s->width)
 +            s->xpos= s->xleft;
 +    }
 +}
 +
 +static void stream_component_close(VideoState *is, int stream_index)
 +{
 +    AVFormatContext *ic = is->ic;
 +    AVCodecParameters *codecpar;
 +
 +    if (stream_index < 0 || stream_index >= ic->nb_streams)
 +        return;
 +    codecpar = ic->streams[stream_index]->codecpar;
 +
 +    switch (codecpar->codec_type) {
 +    case AVMEDIA_TYPE_AUDIO:
 +        decoder_abort(&is->auddec, &is->sampq);
 +        SDL_CloseAudio();
 +        decoder_destroy(&is->auddec);
 +        swr_free(&is->swr_ctx);
 +        av_freep(&is->audio_buf1);
 +        is->audio_buf1_size = 0;
 +        is->audio_buf = NULL;
 +
 +        if (is->rdft) {
 +            av_rdft_end(is->rdft);
 +            av_freep(&is->rdft_data);
 +            is->rdft = NULL;
 +            is->rdft_bits = 0;
 +        }
 +        break;
 +    case AVMEDIA_TYPE_VIDEO:
 +        decoder_abort(&is->viddec, &is->pictq);
 +        decoder_destroy(&is->viddec);
 +        break;
 +    case AVMEDIA_TYPE_SUBTITLE:
 +        decoder_abort(&is->subdec, &is->subpq);
 +        decoder_destroy(&is->subdec);
 +        break;
 +    default:
 +        break;
 +    }
 +
 +    ic->streams[stream_index]->discard = AVDISCARD_ALL;
 +    switch (codecpar->codec_type) {
 +    case AVMEDIA_TYPE_AUDIO:
 +        is->audio_st = NULL;
 +        is->audio_stream = -1;
 +        break;
 +    case AVMEDIA_TYPE_VIDEO:
 +        is->video_st = NULL;
 +        is->video_stream = -1;
 +        break;
 +    case AVMEDIA_TYPE_SUBTITLE:
 +        is->subtitle_st = NULL;
 +        is->subtitle_stream = -1;
 +        break;
 +    default:
 +        break;
 +    }
 +}
 +
 +static void stream_close(VideoState *is)
 +{
 +    /* XXX: use a special url_shutdown call to abort parse cleanly */
 +    is->abort_request = 1;
 +    SDL_WaitThread(is->read_tid, NULL);
 +
 +    /* close each stream */
 +    if (is->audio_stream >= 0)
 +        stream_component_close(is, is->audio_stream);
 +    if (is->video_stream >= 0)
 +        stream_component_close(is, is->video_stream);
 +    if (is->subtitle_stream >= 0)
 +        stream_component_close(is, is->subtitle_stream);
 +
 +    avformat_close_input(&is->ic);
 +
 +    packet_queue_destroy(&is->videoq);
 +    packet_queue_destroy(&is->audioq);
 +    packet_queue_destroy(&is->subtitleq);
 +
 +    /* free all pictures */
 +    frame_queue_destory(&is->pictq);
 +    frame_queue_destory(&is->sampq);
 +    frame_queue_destory(&is->subpq);
 +    SDL_DestroyCond(is->continue_read_thread);
 +    sws_freeContext(is->img_convert_ctx);
 +    sws_freeContext(is->sub_convert_ctx);
 +    av_free(is->filename);
 +    if (is->vis_texture)
 +        SDL_DestroyTexture(is->vis_texture);
 +    if (is->vid_texture)
 +        SDL_DestroyTexture(is->vid_texture);
 +    if (is->sub_texture)
 +        SDL_DestroyTexture(is->sub_texture);
 +    av_free(is);
 +}
 +
 +static void do_exit(VideoState *is)
 +{
 +    if (is) {
 +        stream_close(is);
 +    }
 +    if (renderer)
 +        SDL_DestroyRenderer(renderer);
 +    if (window)
 +        SDL_DestroyWindow(window);
 +    av_lockmgr_register(NULL);
 +    uninit_opts();
 +#if CONFIG_AVFILTER
 +    av_freep(&vfilters_list);
 +#endif
 +    avformat_network_deinit();
 +    if (show_status)
 +        printf("\n");
 +    SDL_Quit();
 +    av_log(NULL, AV_LOG_QUIET, "%s", "");
 +    exit(0);
 +}
 +
 +static void sigterm_handler(int sig)
 +{
 +    exit(123);
 +}
 +
 +static void set_default_window_size(int width, int height, AVRational sar)
 +{
 +    SDL_Rect rect;
 +    calculate_display_rect(&rect, 0, 0, INT_MAX, height, width, height, sar);
 +    default_width  = rect.w;
 +    default_height = rect.h;
 +}
 +
 +static int video_open(VideoState *is)
 +{
 +    int w,h;
 +
 +    if (screen_width) {
 +        w = screen_width;
 +        h = screen_height;
 +    } else {
 +        w = default_width;
 +        h = default_height;
 +    }
 +
 +    if (!window) {
 +        int flags = SDL_WINDOW_SHOWN;
 +        if (!window_title)
 +            window_title = input_filename;
 +        if (is_full_screen)
 +            flags |= SDL_WINDOW_FULLSCREEN_DESKTOP;
 +        if (borderless)
 +            flags |= SDL_WINDOW_BORDERLESS;
 +        else
 +            flags |= SDL_WINDOW_RESIZABLE;
 +        window = SDL_CreateWindow(window_title, SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, w, h, flags);
 +        SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "linear");
 +        if (window) {
 +            SDL_RendererInfo info;
 +            renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC);
 +            if (!renderer) {
 +                av_log(NULL, AV_LOG_WARNING, "Failed to initialize a hardware accelerated renderer: %s\n", SDL_GetError());
 +                renderer = SDL_CreateRenderer(window, -1, 0);
 +            }
 +            if (renderer) {
 +                if (!SDL_GetRendererInfo(renderer, &info))
 +                    av_log(NULL, AV_LOG_VERBOSE, "Initialized %s renderer.\n", info.name);
 +            }
 +        }
 +    } else {
 +        SDL_SetWindowSize(window, w, h);
 +    }
 +
 +    if (!window || !renderer) {
 +        av_log(NULL, AV_LOG_FATAL, "SDL: could not set video mode - exiting\n");
 +        do_exit(is);
 +    }
 +
 +    is->width  = w;
 +    is->height = h;
 +
 +    return 0;
 +}
 +
 +/* display the current picture, if any */
 +static void video_display(VideoState *is)
 +{
 +    if (!window)
 +        video_open(is);
 +
 +    SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
 +    SDL_RenderClear(renderer);
 +    if (is->audio_st && is->show_mode != SHOW_MODE_VIDEO)
 +        video_audio_display(is);
 +    else if (is->video_st)
 +        video_image_display(is);
 +    SDL_RenderPresent(renderer);
 +}
 +
 +static double get_clock(Clock *c)
 +{
 +    if (*c->queue_serial != c->serial)
 +        return NAN;
 +    if (c->paused) {
 +        return c->pts;
 +    } else {
 +        double time = av_gettime_relative() / 1000000.0;
 +        return c->pts_drift + time - (time - c->last_updated) * (1.0 - c->speed);
 +    }
 +}
 +
 +static void set_clock_at(Clock *c, double pts, int serial, double time)
 +{
 +    c->pts = pts;
 +    c->last_updated = time;
 +    c->pts_drift = c->pts - time;
 +    c->serial = serial;
 +}
 +
 +static void set_clock(Clock *c, double pts, int serial)
 +{
 +    double time = av_gettime_relative() / 1000000.0;
 +    set_clock_at(c, pts, serial, time);
 +}
 +
 +static void set_clock_speed(Clock *c, double speed)
 +{
 +    set_clock(c, get_clock(c), c->serial);
 +    c->speed = speed;
 +}
 +
 +static void init_clock(Clock *c, int *queue_serial)
 +{
 +    c->speed = 1.0;
 +    c->paused = 0;
 +    c->queue_serial = queue_serial;
 +    set_clock(c, NAN, -1);
 +}
 +
 +static void sync_clock_to_slave(Clock *c, Clock *slave)
 +{
 +    double clock = get_clock(c);
 +    double slave_clock = get_clock(slave);
 +    if (!isnan(slave_clock) && (isnan(clock) || fabs(clock - slave_clock) > AV_NOSYNC_THRESHOLD))
 +        set_clock(c, slave_clock, slave->serial);
 +}
 +
 +static int get_master_sync_type(VideoState *is) {
 +    if (is->av_sync_type == AV_SYNC_VIDEO_MASTER) {
 +        if (is->video_st)
 +            return AV_SYNC_VIDEO_MASTER;
 +        else
 +            return AV_SYNC_AUDIO_MASTER;
 +    } else if (is->av_sync_type == AV_SYNC_AUDIO_MASTER) {
 +        if (is->audio_st)
 +            return AV_SYNC_AUDIO_MASTER;
 +        else
 +            return AV_SYNC_EXTERNAL_CLOCK;
 +    } else {
 +        return AV_SYNC_EXTERNAL_CLOCK;
 +    }
 +}
 +
 +/* get the current master clock value */
 +static double get_master_clock(VideoState *is)
 +{
 +    double val;
 +
 +    switch (get_master_sync_type(is)) {
 +        case AV_SYNC_VIDEO_MASTER:
 +            val = get_clock(&is->vidclk);
 +            break;
 +        case AV_SYNC_AUDIO_MASTER:
 +            val = get_clock(&is->audclk);
 +            break;
 +        default:
 +            val = get_clock(&is->extclk);
 +            break;
 +    }
 +    return val;
 +}
 +
 +static void check_external_clock_speed(VideoState *is) {
 +   if (is->video_stream >= 0 && is->videoq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES ||
 +       is->audio_stream >= 0 && is->audioq.nb_packets <= EXTERNAL_CLOCK_MIN_FRAMES) {
 +       set_clock_speed(&is->extclk, FFMAX(EXTERNAL_CLOCK_SPEED_MIN, is->extclk.speed - EXTERNAL_CLOCK_SPEED_STEP));
 +   } else if ((is->video_stream < 0 || is->videoq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES) &&
 +              (is->audio_stream < 0 || is->audioq.nb_packets > EXTERNAL_CLOCK_MAX_FRAMES)) {
 +       set_clock_speed(&is->extclk, FFMIN(EXTERNAL_CLOCK_SPEED_MAX, is->extclk.speed + EXTERNAL_CLOCK_SPEED_STEP));
 +   } else {
 +       double speed = is->extclk.speed;
 +       if (speed != 1.0)
 +           set_clock_speed(&is->extclk, speed + EXTERNAL_CLOCK_SPEED_STEP * (1.0 - speed) / fabs(1.0 - speed));
 +   }
 +}
 +
 +/* seek in the stream */
 +static void stream_seek(VideoState *is, int64_t pos, int64_t rel, int seek_by_bytes)
 +{
 +    if (!is->seek_req) {
 +        is->seek_pos = pos;
 +        is->seek_rel = rel;
 +        is->seek_flags &= ~AVSEEK_FLAG_BYTE;
 +        if (seek_by_bytes)
 +            is->seek_flags |= AVSEEK_FLAG_BYTE;
 +        is->seek_req = 1;
 +        SDL_CondSignal(is->continue_read_thread);
 +    }
 +}
 +
 +/* pause or resume the video */
 +static void stream_toggle_pause(VideoState *is)
 +{
 +    if (is->paused) {
 +        is->frame_timer += av_gettime_relative() / 1000000.0 - is->vidclk.last_updated;
 +        if (is->read_pause_return != AVERROR(ENOSYS)) {
 +            is->vidclk.paused = 0;
 +        }
 +        set_clock(&is->vidclk, get_clock(&is->vidclk), is->vidclk.serial);
 +    }
 +    set_clock(&is->extclk, get_clock(&is->extclk), is->extclk.serial);
 +    is->paused = is->audclk.paused = is->vidclk.paused = is->extclk.paused = !is->paused;
 +}
 +
 +static void toggle_pause(VideoState *is)
 +{
 +    stream_toggle_pause(is);
 +    is->step = 0;
 +}
 +
 +static void toggle_mute(VideoState *is)
 +{
 +    is->muted = !is->muted;
 +}
 +
 +static void update_volume(VideoState *is, int sign, double step)
 +{
 +    double volume_level = is->audio_volume ? (20 * log(is->audio_volume / (double)SDL_MIX_MAXVOLUME) / log(10)) : -1000.0;
 +    int new_volume = lrint(SDL_MIX_MAXVOLUME * pow(10.0, (volume_level + sign * step) / 20.0));
 +    is->audio_volume = av_clip(is->audio_volume == new_volume ? (is->audio_volume + sign) : new_volume, 0, SDL_MIX_MAXVOLUME);
 +}
 +
 +static void step_to_next_frame(VideoState *is)
 +{
 +    /* if the stream is paused unpause it, then step */
 +    if (is->paused)
 +        stream_toggle_pause(is);
 +    is->step = 1;
 +}
 +
 +static double compute_target_delay(double delay, VideoState *is)
 +{
 +    double sync_threshold, diff = 0;
 +
 +    /* update delay to follow master synchronisation source */
 +    if (get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER) {
 +        /* if video is slave, we try to correct big delays by
 +           duplicating or deleting a frame */
 +        diff = get_clock(&is->vidclk) - get_master_clock(is);
 +
 +        /* skip or repeat frame. We take into account the
 +           delay to compute the threshold. I still don't know
 +           if it is the best guess */
 +        sync_threshold = FFMAX(AV_SYNC_THRESHOLD_MIN, FFMIN(AV_SYNC_THRESHOLD_MAX, delay));
 +        if (!isnan(diff) && fabs(diff) < is->max_frame_duration) {
 +            if (diff <= -sync_threshold)
 +                delay = FFMAX(0, delay + diff);
 +            else if (diff >= sync_threshold && delay > AV_SYNC_FRAMEDUP_THRESHOLD)
 +                delay = delay + diff;
 +            else if (diff >= sync_threshold)
 +                delay = 2 * delay;
 +        }
 +    }
 +
 +    av_log(NULL, AV_LOG_TRACE, "video: delay=%0.3f A-V=%f\n",
 +            delay, -diff);
 +
 +    return delay;
 +}
 +
 +static double vp_duration(VideoState *is, Frame *vp, Frame *nextvp) {
 +    if (vp->serial == nextvp->serial) {
 +        double duration = nextvp->pts - vp->pts;
 +        if (isnan(duration) || duration <= 0 || duration > is->max_frame_duration)
 +            return vp->duration;
 +        else
 +            return duration;
 +    } else {
 +        return 0.0;
 +    }
 +}
 +
 +static void update_video_pts(VideoState *is, double pts, int64_t pos, int serial) {
 +    /* update current video pts */
 +    set_clock(&is->vidclk, pts, serial);
 +    sync_clock_to_slave(&is->extclk, &is->vidclk);
 +}
 +
 +/* called to display each frame */
 +static void video_refresh(void *opaque, double *remaining_time)
 +{
 +    VideoState *is = opaque;
 +    double time;
 +
 +    Frame *sp, *sp2;
 +
 +    if (!is->paused && get_master_sync_type(is) == AV_SYNC_EXTERNAL_CLOCK && is->realtime)
 +        check_external_clock_speed(is);
 +
 +    if (!display_disable && is->show_mode != SHOW_MODE_VIDEO && is->audio_st) {
 +        time = av_gettime_relative() / 1000000.0;
 +        if (is->force_refresh || is->last_vis_time + rdftspeed < time) {
 +            video_display(is);
 +            is->last_vis_time = time;
 +        }
 +        *remaining_time = FFMIN(*remaining_time, is->last_vis_time + rdftspeed - time);
 +    }
 +
 +    if (is->video_st) {
 +retry:
 +        if (frame_queue_nb_remaining(&is->pictq) == 0) {
 +            // nothing to do, no picture to display in the queue
 +        } else {
 +            double last_duration, duration, delay;
 +            Frame *vp, *lastvp;
 +
 +            /* dequeue the picture */
 +            lastvp = frame_queue_peek_last(&is->pictq);
 +            vp = frame_queue_peek(&is->pictq);
 +
 +            if (vp->serial != is->videoq.serial) {
 +                frame_queue_next(&is->pictq);
 +                goto retry;
 +            }
 +
 +            if (lastvp->serial != vp->serial)
 +                is->frame_timer = av_gettime_relative() / 1000000.0;
 +
 +            if (is->paused)
 +                goto display;
 +
 +            /* compute nominal last_duration */
 +            last_duration = vp_duration(is, lastvp, vp);
 +            delay = compute_target_delay(last_duration, is);
 +
 +            time= av_gettime_relative()/1000000.0;
 +            if (time < is->frame_timer + delay) {
 +                *remaining_time = FFMIN(is->frame_timer + delay - time, *remaining_time);
 +                goto display;
 +            }
 +
 +            is->frame_timer += delay;
 +            if (delay > 0 && time - is->frame_timer > AV_SYNC_THRESHOLD_MAX)
 +                is->frame_timer = time;
 +
 +            SDL_LockMutex(is->pictq.mutex);
 +            if (!isnan(vp->pts))
 +                update_video_pts(is, vp->pts, vp->pos, vp->serial);
 +            SDL_UnlockMutex(is->pictq.mutex);
 +
 +            if (frame_queue_nb_remaining(&is->pictq) > 1) {
 +                Frame *nextvp = frame_queue_peek_next(&is->pictq);
 +                duration = vp_duration(is, vp, nextvp);
 +                if(!is->step && (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) && time > is->frame_timer + duration){
 +                    is->frame_drops_late++;
 +                    frame_queue_next(&is->pictq);
 +                    goto retry;
 +                }
 +            }
 +
 +            if (is->subtitle_st) {
 +                    while (frame_queue_nb_remaining(&is->subpq) > 0) {
 +                        sp = frame_queue_peek(&is->subpq);
 +
 +                        if (frame_queue_nb_remaining(&is->subpq) > 1)
 +                            sp2 = frame_queue_peek_next(&is->subpq);
 +                        else
 +                            sp2 = NULL;
 +
 +                        if (sp->serial != is->subtitleq.serial
 +                                || (is->vidclk.pts > (sp->pts + ((float) sp->sub.end_display_time / 1000)))
 +                                || (sp2 && is->vidclk.pts > (sp2->pts + ((float) sp2->sub.start_display_time / 1000))))
 +                        {
 +                            if (sp->uploaded) {
 +                                int i;
 +                                for (i = 0; i < sp->sub.num_rects; i++) {
 +                                    AVSubtitleRect *sub_rect = sp->sub.rects[i];
 +                                    uint8_t *pixels;
 +                                    int pitch, j;
 +
 +                                    if (!SDL_LockTexture(is->sub_texture, (SDL_Rect *)sub_rect, (void **)&pixels, &pitch)) {
 +                                        for (j = 0; j < sub_rect->h; j++, pixels += pitch)
 +                                            memset(pixels, 0, sub_rect->w << 2);
 +                                        SDL_UnlockTexture(is->sub_texture);
 +                                    }
 +                                }
 +                            }
 +                            frame_queue_next(&is->subpq);
 +                        } else {
 +                            break;
 +                        }
 +                    }
 +            }
 +
 +            frame_queue_next(&is->pictq);
 +            is->force_refresh = 1;
 +
 +            if (is->step && !is->paused)
 +                stream_toggle_pause(is);
 +        }
 +display:
 +        /* display picture */
 +        if (!display_disable && is->force_refresh && is->show_mode == SHOW_MODE_VIDEO && is->pictq.rindex_shown)
 +            video_display(is);
 +    }
 +    is->force_refresh = 0;
 +    if (show_status) {
 +        static int64_t last_time;
 +        int64_t cur_time;
 +        int aqsize, vqsize, sqsize;
 +        double av_diff;
 +
 +        cur_time = av_gettime_relative();
 +        if (!last_time || (cur_time - last_time) >= 30000) {
 +            aqsize = 0;
 +            vqsize = 0;
 +            sqsize = 0;
 +            if (is->audio_st)
 +                aqsize = is->audioq.size;
 +            if (is->video_st)
 +                vqsize = is->videoq.size;
 +            if (is->subtitle_st)
 +                sqsize = is->subtitleq.size;
 +            av_diff = 0;
 +            if (is->audio_st && is->video_st)
 +                av_diff = get_clock(&is->audclk) - get_clock(&is->vidclk);
 +            else if (is->video_st)
 +                av_diff = get_master_clock(is) - get_clock(&is->vidclk);
 +            else if (is->audio_st)
 +                av_diff = get_master_clock(is) - get_clock(&is->audclk);
 +            av_log(NULL, AV_LOG_INFO,
 +                   "%7.2f %s:%7.3f fd=%4d aq=%5dKB vq=%5dKB sq=%5dB f=%"PRId64"/%"PRId64"   \r",
 +                   get_master_clock(is),
 +                   (is->audio_st && is->video_st) ? "A-V" : (is->video_st ? "M-V" : (is->audio_st ? "M-A" : "   ")),
 +                   av_diff,
 +                   is->frame_drops_early + is->frame_drops_late,
 +                   aqsize / 1024,
 +                   vqsize / 1024,
 +                   sqsize,
 +                   is->video_st ? is->viddec.avctx->pts_correction_num_faulty_dts : 0,
 +                   is->video_st ? is->viddec.avctx->pts_correction_num_faulty_pts : 0);
 +            fflush(stdout);
 +            last_time = cur_time;
 +        }
 +    }
 +}
 +
 +static int queue_picture(VideoState *is, AVFrame *src_frame, double pts, double duration, int64_t pos, int serial)
 +{
 +    Frame *vp;
 +
 +#if defined(DEBUG_SYNC)
 +    printf("frame_type=%c pts=%0.3f\n",
 +           av_get_picture_type_char(src_frame->pict_type), pts);
 +#endif
 +
 +    if (!(vp = frame_queue_peek_writable(&is->pictq)))
 +        return -1;
 +
 +    vp->sar = src_frame->sample_aspect_ratio;
 +    vp->uploaded = 0;
 +
 +    vp->width = src_frame->width;
 +    vp->height = src_frame->height;
 +    vp->format = src_frame->format;
 +
 +    vp->pts = pts;
 +    vp->duration = duration;
 +    vp->pos = pos;
 +    vp->serial = serial;
 +
 +    set_default_window_size(vp->width, vp->height, vp->sar);
 +
 +    av_frame_move_ref(vp->frame, src_frame);
 +    frame_queue_push(&is->pictq);
 +    return 0;
 +}
 +
 +static int get_video_frame(VideoState *is, AVFrame *frame)
 +{
 +    int got_picture;
 +
 +    if ((got_picture = decoder_decode_frame(&is->viddec, frame, NULL)) < 0)
 +        return -1;
 +
 +    if (got_picture) {
 +        double dpts = NAN;
 +
 +        if (frame->pts != AV_NOPTS_VALUE)
 +            dpts = av_q2d(is->video_st->time_base) * frame->pts;
 +
 +        frame->sample_aspect_ratio = av_guess_sample_aspect_ratio(is->ic, is->video_st, frame);
 +
 +        if (framedrop>0 || (framedrop && get_master_sync_type(is) != AV_SYNC_VIDEO_MASTER)) {
 +            if (frame->pts != AV_NOPTS_VALUE) {
 +                double diff = dpts - get_master_clock(is);
 +                if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD &&
 +                    diff - is->frame_last_filter_delay < 0 &&
 +                    is->viddec.pkt_serial == is->vidclk.serial &&
 +                    is->videoq.nb_packets) {
 +                    is->frame_drops_early++;
 +                    av_frame_unref(frame);
 +                    got_picture = 0;
 +                }
 +            }
 +        }
 +    }
 +
 +    return got_picture;
 +}
 +
 +#if CONFIG_AVFILTER
 +static int configure_filtergraph(AVFilterGraph *graph, const char *filtergraph,
 +                                 AVFilterContext *source_ctx, AVFilterContext *sink_ctx)
 +{
 +    int ret, i;
 +    int nb_filters = graph->nb_filters;
 +    AVFilterInOut *outputs = NULL, *inputs = NULL;
 +
 +    if (filtergraph) {
 +        outputs = avfilter_inout_alloc();
 +        inputs  = avfilter_inout_alloc();
 +        if (!outputs || !inputs) {
 +            ret = AVERROR(ENOMEM);
 +            goto fail;
 +        }
 +
 +        outputs->name       = av_strdup("in");
 +        outputs->filter_ctx = source_ctx;
 +        outputs->pad_idx    = 0;
 +        outputs->next       = NULL;
 +
 +        inputs->name        = av_strdup("out");
 +        inputs->filter_ctx  = sink_ctx;
 +        inputs->pad_idx     = 0;
 +        inputs->next        = NULL;
 +
 +        if ((ret = avfilter_graph_parse_ptr(graph, filtergraph, &inputs, &outputs, NULL)) < 0)
 +            goto fail;
 +    } else {
 +        if ((ret = avfilter_link(source_ctx, 0, sink_ctx, 0)) < 0)
 +            goto fail;
 +    }
 +
 +    /* Reorder the filters to ensure that inputs of the custom filters are merged first */
 +    for (i = 0; i < graph->nb_filters - nb_filters; i++)
 +        FFSWAP(AVFilterContext*, graph->filters[i], graph->filters[i + nb_filters]);
 +
 +    ret = avfilter_graph_config(graph, NULL);
 +fail:
 +    avfilter_inout_free(&outputs);
 +    avfilter_inout_free(&inputs);
 +    return ret;
 +}
 +
 +static int configure_video_filters(AVFilterGraph *graph, VideoState *is, const char *vfilters, AVFrame *frame)
 +{
 +    static const enum AVPixelFormat pix_fmts[] = { AV_PIX_FMT_YUV420P, AV_PIX_FMT_BGRA, AV_PIX_FMT_NONE };
 +    char sws_flags_str[512] = "";
 +    char buffersrc_args[256];
 +    int ret;
 +    AVFilterContext *filt_src = NULL, *filt_out = NULL, *last_filter = NULL;
 +    AVCodecParameters *codecpar = is->video_st->codecpar;
 +    AVRational fr = av_guess_frame_rate(is->ic, is->video_st, NULL);
 +    AVDictionaryEntry *e = NULL;
 +
 +    while ((e = av_dict_get(sws_dict, "", e, AV_DICT_IGNORE_SUFFIX))) {
 +        if (!strcmp(e->key, "sws_flags")) {
 +            av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", "flags", e->value);
 +        } else
 +            av_strlcatf(sws_flags_str, sizeof(sws_flags_str), "%s=%s:", e->key, e->value);
 +    }
 +    if (strlen(sws_flags_str))
 +        sws_flags_str[strlen(sws_flags_str)-1] = '\0';
 +
 +    graph->scale_sws_opts = av_strdup(sws_flags_str);
 +
 +    snprintf(buffersrc_args, sizeof(buffersrc_args),
 +             "video_size=%dx%d:pix_fmt=%d:time_base=%d/%d:pixel_aspect=%d/%d",
 +             frame->width, frame->height, frame->format,
 +             is->video_st->time_base.num, is->video_st->time_base.den,
 +             codecpar->sample_aspect_ratio.num, FFMAX(codecpar->sample_aspect_ratio.den, 1));
 +    if (fr.num && fr.den)
 +        av_strlcatf(buffersrc_args, sizeof(buffersrc_args), ":frame_rate=%d/%d", fr.num, fr.den);
 +
 +    if ((ret = avfilter_graph_create_filter(&filt_src,
 +                                            avfilter_get_by_name("buffer"),
 +                                            "ffplay_buffer", buffersrc_args, NULL,
 +                                            graph)) < 0)
 +        goto fail;
 +
 +    ret = avfilter_graph_create_filter(&filt_out,
 +                                       avfilter_get_by_name("buffersink"),
 +                                       "ffplay_buffersink", NULL, NULL, graph);
 +    if (ret < 0)
 +        goto fail;
 +
 +    if ((ret = av_opt_set_int_list(filt_out, "pix_fmts", pix_fmts,  AV_PIX_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
 +        goto fail;
 +
 +    last_filter = filt_out;
 +
 +/* Note: this macro adds a filter before the lastly added filter, so the
 + * processing order of the filters is in reverse */
 +#define INSERT_FILT(name, arg) do {                                          \
 +    AVFilterContext *filt_ctx;                                               \
 +                                                                             \
 +    ret = avfilter_graph_create_filter(&filt_ctx,                            \
 +                                       avfilter_get_by_name(name),           \
 +                                       "ffplay_" name, arg, NULL, graph);    \
 +    if (ret < 0)                                                             \
 +        goto fail;                                                           \
 +                                                                             \
 +    ret = avfilter_link(filt_ctx, 0, last_filter, 0);                        \
 +    if (ret < 0)                                                             \
 +        goto fail;                                                           \
 +                                                                             \
 +    last_filter = filt_ctx;                                                  \
 +} while (0)
 +
 +    if (autorotate) {
 +        double theta  = get_rotation(is->video_st);
 +
 +        if (fabs(theta - 90) < 1.0) {
 +            INSERT_FILT("transpose", "clock");
 +        } else if (fabs(theta - 180) < 1.0) {
 +            INSERT_FILT("hflip", NULL);
 +            INSERT_FILT("vflip", NULL);
 +        } else if (fabs(theta - 270) < 1.0) {
 +            INSERT_FILT("transpose", "cclock");
 +        } else if (fabs(theta) > 1.0) {
 +            char rotate_buf[64];
 +            snprintf(rotate_buf, sizeof(rotate_buf), "%f*PI/180", theta);
 +            INSERT_FILT("rotate", rotate_buf);
 +        }
 +    }
 +
 +    if ((ret = configure_filtergraph(graph, vfilters, filt_src, last_filter)) < 0)
 +        goto fail;
 +
 +    is->in_video_filter  = filt_src;
 +    is->out_video_filter = filt_out;
 +
 +fail:
 +    return ret;
 +}
 +
 +static int configure_audio_filters(VideoState *is, const char *afilters, int force_output_format)
 +{
 +    static const enum AVSampleFormat sample_fmts[] = { AV_SAMPLE_FMT_S16, AV_SAMPLE_FMT_NONE };
 +    int sample_rates[2] = { 0, -1 };
 +    int64_t channel_layouts[2] = { 0, -1 };
 +    int channels[2] = { 0, -1 };
 +    AVFilterContext *filt_asrc = NULL, *filt_asink = NULL;
 +    char aresample_swr_opts[512] = "";
 +    AVDictionaryEntry *e = NULL;
 +    char asrc_args[256];
 +    int ret;
 +
 +    avfilter_graph_free(&is->agraph);
 +    if (!(is->agraph = avfilter_graph_alloc()))
 +        return AVERROR(ENOMEM);
 +
 +    while ((e = av_dict_get(swr_opts, "", e, AV_DICT_IGNORE_SUFFIX)))
 +        av_strlcatf(aresample_swr_opts, sizeof(aresample_swr_opts), "%s=%s:", e->key, e->value);
 +    if (strlen(aresample_swr_opts))
 +        aresample_swr_opts[strlen(aresample_swr_opts)-1] = '\0';
 +    av_opt_set(is->agraph, "aresample_swr_opts", aresample_swr_opts, 0);
 +
 +    ret = snprintf(asrc_args, sizeof(asrc_args),
 +                   "sample_rate=%d:sample_fmt=%s:channels=%d:time_base=%d/%d",
 +                   is->audio_filter_src.freq, av_get_sample_fmt_name(is->audio_filter_src.fmt),
 +                   is->audio_filter_src.channels,
 +                   1, is->audio_filter_src.freq);
 +    if (is->audio_filter_src.channel_layout)
 +        snprintf(asrc_args + ret, sizeof(asrc_args) - ret,
 +                 ":channel_layout=0x%"PRIx64,  is->audio_filter_src.channel_layout);
 +
 +    ret = avfilter_graph_create_filter(&filt_asrc,
 +                                       avfilter_get_by_name("abuffer"), "ffplay_abuffer",
 +                                       asrc_args, NULL, is->agraph);
 +    if (ret < 0)
 +        goto end;
 +
 +
 +    ret = avfilter_graph_create_filter(&filt_asink,
 +                                       avfilter_get_by_name("abuffersink"), "ffplay_abuffersink",
 +                                       NULL, NULL, is->agraph);
 +    if (ret < 0)
 +        goto end;
 +
 +    if ((ret = av_opt_set_int_list(filt_asink, "sample_fmts", sample_fmts,  AV_SAMPLE_FMT_NONE, AV_OPT_SEARCH_CHILDREN)) < 0)
 +        goto end;
 +    if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 1, AV_OPT_SEARCH_CHILDREN)) < 0)
 +        goto end;
 +
 +    if (force_output_format) {
 +        channel_layouts[0] = is->audio_tgt.channel_layout;
 +        channels       [0] = is->audio_tgt.channels;
 +        sample_rates   [0] = is->audio_tgt.freq;
 +        if ((ret = av_opt_set_int(filt_asink, "all_channel_counts", 0, AV_OPT_SEARCH_CHILDREN)) < 0)
 +            goto end;
 +        if ((ret = av_opt_set_int_list(filt_asink, "channel_layouts", channel_layouts,  -1, AV_OPT_SEARCH_CHILDREN)) < 0)
 +            goto end;
 +        if ((ret = av_opt_set_int_list(filt_asink, "channel_counts" , channels       ,  -1, AV_OPT_SEARCH_CHILDREN)) < 0)
 +            goto end;
 +        if ((ret = av_opt_set_int_list(filt_asink, "sample_rates"   , sample_rates   ,  -1, AV_OPT_SEARCH_CHILDREN)) < 0)
 +            goto end;
 +    }
 +
 +
 +    if ((ret = configure_filtergraph(is->agraph, afilters, filt_asrc, filt_asink)) < 0)
 +        goto end;
 +
 +    is->in_audio_filter  = filt_asrc;
 +    is->out_audio_filter = filt_asink;
 +
 +end:
 +    if (ret < 0)
 +        avfilter_graph_free(&is->agraph);
 +    return ret;
 +}
 +#endif  /* CONFIG_AVFILTER */
 +
 +static int audio_thread(void *arg)
 +{
 +    VideoState *is = arg;
 +    AVFrame *frame = av_frame_alloc();
 +    Frame *af;
 +#if CONFIG_AVFILTER
 +    int last_serial = -1;
 +    int64_t dec_channel_layout;
 +    int reconfigure;
 +#endif
 +    int got_frame = 0;
 +    AVRational tb;
 +    int ret = 0;
 +
 +    if (!frame)
 +        return AVERROR(ENOMEM);
 +
 +    do {
 +        if ((got_frame = decoder_decode_frame(&is->auddec, frame, NULL)) < 0)
 +            goto the_end;
 +
 +        if (got_frame) {
 +                tb = (AVRational){1, frame->sample_rate};
 +
 +#if CONFIG_AVFILTER
 +                dec_channel_layout = get_valid_channel_layout(frame->channel_layout, frame->channels);
 +
 +                reconfigure =
 +                    cmp_audio_fmts(is->audio_filter_src.fmt, is->audio_filter_src.channels,
 +                                   frame->format, frame->channels)    ||
 +                    is->audio_filter_src.channel_layout != dec_channel_layout ||
 +                    is->audio_filter_src.freq           != frame->sample_rate ||
 +                    is->auddec.pkt_serial               != last_serial;
 +
 +                if (reconfigure) {
 +                    char buf1[1024], buf2[1024];
 +                    av_get_channel_layout_string(buf1, sizeof(buf1), -1, is->audio_filter_src.channel_layout);
 +                    av_get_channel_layout_string(buf2, sizeof(buf2), -1, dec_channel_layout);
 +                    av_log(NULL, AV_LOG_DEBUG,
 +                           "Audio frame changed from rate:%d ch:%d fmt:%s layout:%s serial:%d to rate:%d ch:%d fmt:%s layout:%s serial:%d\n",
 +                           is->audio_filter_src.freq, is->audio_filter_src.channels, av_get_sample_fmt_name(is->audio_filter_src.fmt), buf1, last_serial,
 +                           frame->sample_rate, frame->channels, av_get_sample_fmt_name(frame->format), buf2, is->auddec.pkt_serial);
 +
 +                    is->audio_filter_src.fmt            = frame->format;
 +                    is->audio_filter_src.channels       = frame->channels;
 +                    is->audio_filter_src.channel_layout = dec_channel_layout;
 +                    is->audio_filter_src.freq           = frame->sample_rate;
 +                    last_serial                         = is->auddec.pkt_serial;
 +
 +                    if ((ret = configure_audio_filters(is, afilters, 1)) < 0)
 +                        goto the_end;
 +                }
 +
 +            if ((ret = av_buffersrc_add_frame(is->in_audio_filter, frame)) < 0)
 +                goto the_end;
 +
 +            while ((ret = av_buffersink_get_frame_flags(is->out_audio_filter, frame, 0)) >= 0) {
 +                tb = av_buffersink_get_time_base(is->out_audio_filter);
 +#endif
 +                if (!(af = frame_queue_peek_writable(&is->sampq)))
 +                    goto the_end;
 +
 +                af->pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb);
 +                af->pos = frame->pkt_pos;
 +                af->serial = is->auddec.pkt_serial;
 +                af->duration = av_q2d((AVRational){frame->nb_samples, frame->sample_rate});
 +
 +                av_frame_move_ref(af->frame, frame);
 +                frame_queue_push(&is->sampq);
 +
 +#if CONFIG_AVFILTER
 +                if (is->audioq.serial != is->auddec.pkt_serial)
 +                    break;
 +            }
 +            if (ret == AVERROR_EOF)
 +                is->auddec.finished = is->auddec.pkt_serial;
 +#endif
 +        }
 +    } while (ret >= 0 || ret == AVERROR(EAGAIN) || ret == AVERROR_EOF);
 + the_end:
 +#if CONFIG_AVFILTER
 +    avfilter_graph_free(&is->agraph);
 +#endif
 +    av_frame_free(&frame);
 +    return ret;
 +}
 +
 +static int decoder_start(Decoder *d, int (*fn)(void *), void *arg)
 +{
 +    packet_queue_start(d->queue);
 +    d->decoder_tid = SDL_CreateThread(fn, "decoder", arg);
 +    if (!d->decoder_tid) {
 +        av_log(NULL, AV_LOG_ERROR, "SDL_CreateThread(): %s\n", SDL_GetError());
 +        return AVERROR(ENOMEM);
 +    }
 +    return 0;
 +}
 +
 +static int video_thread(void *arg)
 +{
 +    VideoState *is = arg;
 +    AVFrame *frame = av_frame_alloc();
 +    double pts;
 +    double duration;
 +    int ret;
 +    AVRational tb = is->video_st->time_base;
 +    AVRational frame_rate = av_guess_frame_rate(is->ic, is->video_st, NULL);
 +
 +#if CONFIG_AVFILTER
 +    AVFilterGraph *graph = avfilter_graph_alloc();
 +    AVFilterContext *filt_out = NULL, *filt_in = NULL;
 +    int last_w = 0;
 +    int last_h = 0;
 +    enum AVPixelFormat last_format = -2;
 +    int last_serial = -1;
 +    int last_vfilter_idx = 0;
 +    if (!graph) {
 +        av_frame_free(&frame);
 +        return AVERROR(ENOMEM);
 +    }
 +
 +#endif
 +
 +    if (!frame) {
 +#if CONFIG_AVFILTER
 +        avfilter_graph_free(&graph);
 +#endif
 +        return AVERROR(ENOMEM);
 +    }
 +
 +    for (;;) {
 +        ret = get_video_frame(is, frame);
 +        if (ret < 0)
 +            goto the_end;
 +        if (!ret)
 +            continue;
 +
 +#if CONFIG_AVFILTER
 +        if (   last_w != frame->width
 +            || last_h != frame->height
 +            || last_format != frame->format
 +            || last_serial != is->viddec.pkt_serial
 +            || last_vfilter_idx != is->vfilter_idx) {
 +            av_log(NULL, AV_LOG_DEBUG,
 +                   "Video frame changed from size:%dx%d format:%s serial:%d to size:%dx%d format:%s serial:%d\n",
 +                   last_w, last_h,
 +                   (const char *)av_x_if_null(av_get_pix_fmt_name(last_format), "none"), last_serial,
 +                   frame->width, frame->height,
 +                   (const char *)av_x_if_null(av_get_pix_fmt_name(frame->format), "none"), is->viddec.pkt_serial);
 +            avfilter_graph_free(&graph);
 +            graph = avfilter_graph_alloc();
 +            if ((ret = configure_video_filters(graph, is, vfilters_list ? vfilters_list[is->vfilter_idx] : NULL, frame)) < 0) {
 +                SDL_Event event;
 +                event.type = FF_QUIT_EVENT;
 +                event.user.data1 = is;
 +                SDL_PushEvent(&event);
 +                goto the_end;
 +            }
 +            filt_in  = is->in_video_filter;
 +            filt_out = is->out_video_filter;
 +            last_w = frame->width;
 +            last_h = frame->height;
 +            last_format = frame->format;
 +            last_serial = is->viddec.pkt_serial;
 +            last_vfilter_idx = is->vfilter_idx;
 +            frame_rate = av_buffersink_get_frame_rate(filt_out);
 +        }
 +
 +        ret = av_buffersrc_add_frame(filt_in, frame);
 +        if (ret < 0)
 +            goto the_end;
 +
 +        while (ret >= 0) {
 +            is->frame_last_returned_time = av_gettime_relative() / 1000000.0;
 +
 +            ret = av_buffersink_get_frame_flags(filt_out, frame, 0);
 +            if (ret < 0) {
 +                if (ret == AVERROR_EOF)
 +                    is->viddec.finished = is->viddec.pkt_serial;
 +                ret = 0;
 +                break;
 +            }
 +
 +            is->frame_last_filter_delay = av_gettime_relative() / 1000000.0 - is->frame_last_returned_time;
 +            if (fabs(is->frame_last_filter_delay) > AV_NOSYNC_THRESHOLD / 10.0)
 +                is->frame_last_filter_delay = 0;
 +            tb = av_buffersink_get_time_base(filt_out);
 +#endif
 +            duration = (frame_rate.num && frame_rate.den ? av_q2d((AVRational){frame_rate.den, frame_rate.num}) : 0);
 +            pts = (frame->pts == AV_NOPTS_VALUE) ? NAN : frame->pts * av_q2d(tb);
 +            ret = queue_picture(is, frame, pts, duration, frame->pkt_pos, is->viddec.pkt_serial);
 +            av_frame_unref(frame);
 +#if CONFIG_AVFILTER
 +        }
 +#endif
 +
 +        if (ret < 0)
 +            goto the_end;
 +    }
 + the_end:
 +#if CONFIG_AVFILTER
 +    avfilter_graph_free(&graph);
 +#endif
 +    av_frame_free(&frame);
 +    return 0;
 +}
 +
 +static int subtitle_thread(void *arg)
 +{
 +    VideoState *is = arg;
 +    Frame *sp;
 +    int got_subtitle;
 +    double pts;
 +
 +    for (;;) {
 +        if (!(sp = frame_queue_peek_writable(&is->subpq)))
 +            return 0;
 +
 +        if ((got_subtitle = decoder_decode_frame(&is->subdec, NULL, &sp->sub)) < 0)
 +            break;
 +
 +        pts = 0;
 +
 +        if (got_subtitle && sp->sub.format == 0) {
 +            if (sp->sub.pts != AV_NOPTS_VALUE)
 +                pts = sp->sub.pts / (double)AV_TIME_BASE;
 +            sp->pts = pts;
 +            sp->serial = is->subdec.pkt_serial;
 +            sp->width = is->subdec.avctx->width;
 +            sp->height = is->subdec.avctx->height;
 +            sp->uploaded = 0;
 +
 +            /* now we can update the picture count */
 +            frame_queue_push(&is->subpq);
 +        } else if (got_subtitle) {
 +            avsubtitle_free(&sp->sub);
 +        }
 +    }
 +    return 0;
 +}
 +
 +/* copy samples for viewing in editor window */
 +static void update_sample_display(VideoState *is, short *samples, int samples_size)
 +{
 +    int size, len;
 +
 +    size = samples_size / sizeof(short);
 +    while (size > 0) {
 +        len = SAMPLE_ARRAY_SIZE - is->sample_array_index;
 +        if (len > size)
 +            len = size;
 +        memcpy(is->sample_array + is->sample_array_index, samples, len * sizeof(short));
 +        samples += len;
 +        is->sample_array_index += len;
 +        if (is->sample_array_index >= SAMPLE_ARRAY_SIZE)
 +            is->sample_array_index = 0;
 +        size -= len;
 +    }
 +}
 +
 +/* return the wanted number of samples to get better sync if sync_type is video
 + * or external master clock */
 +static int synchronize_audio(VideoState *is, int nb_samples)
 +{
 +    int wanted_nb_samples = nb_samples;
 +
 +    /* if not master, then we try to remove or add samples to correct the clock */
 +    if (get_master_sync_type(is) != AV_SYNC_AUDIO_MASTER) {
 +        double diff, avg_diff;
 +        int min_nb_samples, max_nb_samples;
 +
 +        diff = get_clock(&is->audclk) - get_master_clock(is);
 +
 +        if (!isnan(diff) && fabs(diff) < AV_NOSYNC_THRESHOLD) {
 +            is->audio_diff_cum = diff + is->audio_diff_avg_coef * is->audio_diff_cum;
 +            if (is->audio_diff_avg_count < AUDIO_DIFF_AVG_NB) {
 +                /* not enough measures to have a correct estimate */
 +                is->audio_diff_avg_count++;
 +            } else {
 +                /* estimate the A-V difference */
 +                avg_diff = is->audio_diff_cum * (1.0 - is->audio_diff_avg_coef);
 +
 +                if (fabs(avg_diff) >= is->audio_diff_threshold) {
 +                    wanted_nb_samples = nb_samples + (int)(diff * is->audio_src.freq);
 +                    min_nb_samples = ((nb_samples * (100 - SAMPLE_CORRECTION_PERCENT_MAX) / 100));
 +                    max_nb_samples = ((nb_samples * (100 + SAMPLE_CORRECTION_PERCENT_MAX) / 100));
 +                    wanted_nb_samples = av_clip(wanted_nb_samples, min_nb_samples, max_nb_samples);
 +                }
 +                av_log(NULL, AV_LOG_TRACE, "diff=%f adiff=%f sample_diff=%d apts=%0.3f %f\n",
 +                        diff, avg_diff, wanted_nb_samples - nb_samples,
 +                        is->audio_clock, is->audio_diff_threshold);
 +            }
 +        } else {
 +            /* too big difference : may be initial PTS errors, so
 +               reset A-V filter */
 +            is->audio_diff_avg_count = 0;
 +            is->audio_diff_cum       = 0;
 +        }
 +    }
 +
 +    return wanted_nb_samples;
 +}
 +
 +/**
 + * Decode one audio frame and return its uncompressed size.
 + *
 + * The processed audio frame is decoded, converted if required, and
 + * stored in is->audio_buf, with size in bytes given by the return
 + * value.
 + */
 +static int audio_decode_frame(VideoState *is)
 +{
 +    int data_size, resampled_data_size;
 +    int64_t dec_channel_layout;
 +    av_unused double audio_clock0;
 +    int wanted_nb_samples;
 +    Frame *af;
 +
 +    if (is->paused)
 +        return -1;
 +
 +    do {
 +#if defined(_WIN32)
 +        while (frame_queue_nb_remaining(&is->sampq) == 0) {
 +            if ((av_gettime_relative() - audio_callback_time) > 1000000LL * is->audio_hw_buf_size / is->audio_tgt.bytes_per_sec / 2)
 +                return -1;
 +            av_usleep (1000);
 +        }
 +#endif
 +        if (!(af = frame_queue_peek_readable(&is->sampq)))
 +            return -1;
 +        frame_queue_next(&is->sampq);
 +    } while (af->serial != is->audioq.serial);
 +
 +    data_size = av_samples_get_buffer_size(NULL, af->frame->channels,
 +                                           af->frame->nb_samples,
 +                                           af->frame->format, 1);
 +
 +    dec_channel_layout =
 +        (af->frame->channel_layout && af->frame->channels == av_get_channel_layout_nb_channels(af->frame->channel_layout)) ?
 +        af->frame->channel_layout : av_get_default_channel_layout(af->frame->channels);
 +    wanted_nb_samples = synchronize_audio(is, af->frame->nb_samples);
 +
 +    if (af->frame->format        != is->audio_src.fmt            ||
 +        dec_channel_layout       != is->audio_src.channel_layout ||
 +        af->frame->sample_rate   != is->audio_src.freq           ||
 +        (wanted_nb_samples       != af->frame->nb_samples && !is->swr_ctx)) {
 +        swr_free(&is->swr_ctx);
 +        is->swr_ctx = swr_alloc_set_opts(NULL,
 +                                         is->audio_tgt.channel_layout, is->audio_tgt.fmt, is->audio_tgt.freq,
 +                                         dec_channel_layout,           af->frame->format, af->frame->sample_rate,
 +                                         0, NULL);
 +        if (!is->swr_ctx || swr_init(is->swr_ctx) < 0) {
 +            av_log(NULL, AV_LOG_ERROR,
 +                   "Cannot create sample rate converter for conversion of %d Hz %s %d channels to %d Hz %s %d channels!\n",
 +                    af->frame->sample_rate, av_get_sample_fmt_name(af->frame->format), af->frame->channels,
 +                    is->audio_tgt.freq, av_get_sample_fmt_name(is->audio_tgt.fmt), is->audio_tgt.channels);
 +            swr_free(&is->swr_ctx);
 +            return -1;
 +        }
 +        is->audio_src.channel_layout = dec_channel_layout;
 +        is->audio_src.channels       = af->frame->channels;
 +        is->audio_src.freq = af->frame->sample_rate;
 +        is->audio_src.fmt = af->frame->format;
 +    }
 +
 +    if (is->swr_ctx) {
 +        const uint8_t **in = (const uint8_t **)af->frame->extended_data;
 +        uint8_t **out = &is->audio_buf1;
 +        int out_count = (int64_t)wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate + 256;
 +        int out_size  = av_samples_get_buffer_size(NULL, is->audio_tgt.channels, out_count, is->audio_tgt.fmt, 0);
 +        int len2;
 +        if (out_size < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size() failed\n");
 +            return -1;
 +        }
 +        if (wanted_nb_samples != af->frame->nb_samples) {
 +            if (swr_set_compensation(is->swr_ctx, (wanted_nb_samples - af->frame->nb_samples) * is->audio_tgt.freq / af->frame->sample_rate,
 +                                        wanted_nb_samples * is->audio_tgt.freq / af->frame->sample_rate) < 0) {
 +                av_log(NULL, AV_LOG_ERROR, "swr_set_compensation() failed\n");
 +                return -1;
 +            }
 +        }
 +        av_fast_malloc(&is->audio_buf1, &is->audio_buf1_size, out_size);
 +        if (!is->audio_buf1)
 +            return AVERROR(ENOMEM);
 +        len2 = swr_convert(is->swr_ctx, out, out_count, in, af->frame->nb_samples);
 +        if (len2 < 0) {
 +            av_log(NULL, AV_LOG_ERROR, "swr_convert() failed\n");
 +            return -1;
 +        }
 +        if (len2 == out_count) {
 +            av_log(NULL, AV_LOG_WARNING, "audio buffer is probably too small\n");
 +            if (swr_init(is->swr_ctx) < 0)
 +                swr_free(&is->swr_ctx);
 +        }
 +        is->audio_buf = is->audio_buf1;
 +        resampled_data_size = len2 * is->audio_tgt.channels * av_get_bytes_per_sample(is->audio_tgt.fmt);
 +    } else {
 +        is->audio_buf = af->frame->data[0];
 +        resampled_data_size = data_size;
 +    }
 +
 +    audio_clock0 = is->audio_clock;
 +    /* update the audio clock with the pts */
 +    if (!isnan(af->pts))
 +        is->audio_clock = af->pts + (double) af->frame->nb_samples / af->frame->sample_rate;
 +    else
 +        is->audio_clock = NAN;
 +    is->audio_clock_serial = af->serial;
 +#ifdef DEBUG
 +    {
 +        static double last_clock;
 +        printf("audio: delay=%0.3f clock=%0.3f clock0=%0.3f\n",
 +               is->audio_clock - last_clock,
 +               is->audio_clock, audio_clock0);
 +        last_clock = is->audio_clock;
 +    }
 +#endif
 +    return resampled_data_size;
 +}
 +
 +/* prepare a new audio buffer */
 +static void sdl_audio_callback(void *opaque, Uint8 *stream, int len)
 +{
 +    VideoState *is = opaque;
 +    int audio_size, len1;
 +
 +    audio_callback_time = av_gettime_relative();
 +
 +    while (len > 0) {
 +        if (is->audio_buf_index >= is->audio_buf_size) {
 +           audio_size = audio_decode_frame(is);
 +           if (audio_size < 0) {
 +                /* if error, just output silence */
 +               is->audio_buf = NULL;
 +               is->audio_buf_size = SDL_AUDIO_MIN_BUFFER_SIZE / is->audio_tgt.frame_size * is->audio_tgt.frame_size;
 +           } else {
 +               if (is->show_mode != SHOW_MODE_VIDEO)
 +                   update_sample_display(is, (int16_t *)is->audio_buf, audio_size);
 +               is->audio_buf_size = audio_size;
 +           }
 +           is->audio_buf_index = 0;
 +        }
 +        len1 = is->audio_buf_size - is->audio_buf_index;
 +        if (len1 > len)
 +            len1 = len;
 +        if (!is->muted && is->audio_buf && is->audio_volume == SDL_MIX_MAXVOLUME)
 +            memcpy(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1);
 +        else {
 +            memset(stream, 0, len1);
 +            if (!is->muted && is->audio_buf)
 +                SDL_MixAudio(stream, (uint8_t *)is->audio_buf + is->audio_buf_index, len1, is->audio_volume);
 +        }
 +        len -= len1;
 +        stream += len1;
 +        is->audio_buf_index += len1;
 +    }
 +    is->audio_write_buf_size = is->audio_buf_size - is->audio_buf_index;
 +    /* Let's assume the audio driver that is used by SDL has two periods. */
 +    if (!isnan(is->audio_clock)) {
 +        set_clock_at(&is->audclk, is->audio_clock - (double)(2 * is->audio_hw_buf_size + is->audio_write_buf_size) / is->audio_tgt.bytes_per_sec, is->audio_clock_serial, audio_callback_time / 1000000.0);
 +        sync_clock_to_slave(&is->extclk, &is->audclk);
 +    }
 +}
 +
 +static int audio_open(void *opaque, int64_t wanted_channel_layout, int wanted_nb_channels, int wanted_sample_rate, struct AudioParams *audio_hw_params)
 +{
 +    SDL_AudioSpec wanted_spec, spec;
 +    const char *env;
 +    static const int next_nb_channels[] = {0, 0, 1, 6, 2, 6, 4, 6};
 +    static const int next_sample_rates[] = {0, 44100, 48000, 96000, 192000};
 +    int next_sample_rate_idx = FF_ARRAY_ELEMS(next_sample_rates) - 1;
 +
 +    env = SDL_getenv("SDL_AUDIO_CHANNELS");
 +    if (env) {
 +        wanted_nb_channels = atoi(env);
 +        wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
 +    }
 +    if (!wanted_channel_layout || wanted_nb_channels != av_get_channel_layout_nb_channels(wanted_channel_layout)) {
 +        wanted_channel_layout = av_get_default_channel_layout(wanted_nb_channels);
 +        wanted_channel_layout &= ~AV_CH_LAYOUT_STEREO_DOWNMIX;
 +    }
 +    wanted_nb_channels = av_get_channel_layout_nb_channels(wanted_channel_layout);
 +    wanted_spec.channels = wanted_nb_channels;
 +    wanted_spec.freq = wanted_sample_rate;
 +    if (wanted_spec.freq <= 0 || wanted_spec.channels <= 0) {
 +        av_log(NULL, AV_LOG_ERROR, "Invalid sample rate or channel count!\n");
 +        return -1;
 +    }
 +    while (next_sample_rate_idx && next_sample_rates[next_sample_rate_idx] >= wanted_spec.freq)
 +        next_sample_rate_idx--;
 +    wanted_spec.format = AUDIO_S16SYS;
 +    wanted_spec.silence = 0;
 +    wanted_spec.samples = FFMAX(SDL_AUDIO_MIN_BUFFER_SIZE, 2 << av_log2(wanted_spec.freq / SDL_AUDIO_MAX_CALLBACKS_PER_SEC));
 +    wanted_spec.callback = sdl_audio_callback;
 +    wanted_spec.userdata = opaque;
 +    while (SDL_OpenAudio(&wanted_spec, &spec) < 0) {
 +        av_log(NULL, AV_LOG_WARNING, "SDL_OpenAudio (%d channels, %d Hz): %s\n",
 +               wanted_spec.channels, wanted_spec.freq, SDL_GetError());
 +        wanted_spec.channels = next_nb_channels[FFMIN(7, wanted_spec.channels)];
 +        if (!wanted_spec.channels) {
 +            wanted_spec.freq = next_sample_rates[next_sample_rate_idx--];
 +            wanted_spec.channels = wanted_nb_channels;
 +            if (!wanted_spec.freq) {
 +                av_log(NULL, AV_LOG_ERROR,
 +                       "No more combinations to try, audio open failed\n");
 +                return -1;
 +            }
 +        }
 +        wanted_channel_layout = av_get_default_channel_layout(wanted_spec.channels);
 +    }
 +    if (spec.format != AUDIO_S16SYS) {
 +        av_log(NULL, AV_LOG_ERROR,
 +               "SDL advised audio format %d is not supported!\n", spec.format);
 +        return -1;
 +    }
 +    if (spec.channels != wanted_spec.channels) {
 +        wanted_channel_layout = av_get_default_channel_layout(spec.channels);
 +        if (!wanted_channel_layout) {
 +            av_log(NULL, AV_LOG_ERROR,
 +                   "SDL advised channel count %d is not supported!\n", spec.channels);
 +            return -1;
 +        }
 +    }
 +
 +    audio_hw_params->fmt = AV_SAMPLE_FMT_S16;
 +    audio_hw_params->freq = spec.freq;
 +    audio_hw_params->channel_layout = wanted_channel_layout;
 +    audio_hw_params->channels =  spec.channels;
 +    audio_hw_params->frame_size = av_samples_get_buffer_size(NULL, audio_hw_params->channels, 1, audio_hw_params->fmt, 1);
 +    audio_hw_params->bytes_per_sec = av_samples_get_buffer_size(NULL, audio_hw_params->channels, audio_hw_params->freq, audio_hw_params->fmt, 1);
 +    if (audio_hw_params->bytes_per_sec <= 0 || audio_hw_params->frame_size <= 0) {
 +        av_log(NULL, AV_LOG_ERROR, "av_samples_get_buffer_size failed\n");
 +        return -1;
 +    }
 +    return spec.size;
 +}
 +
 +/* open a given stream. Return 0 if OK */
 +static int stream_component_open(VideoState *is, int stream_index)
 +{
 +    AVFormatContext *ic = is->ic;
 +    AVCodecContext *avctx;
 +    AVCodec *codec;
 +    const char *forced_codec_name = NULL;
 +    AVDictionary *opts = NULL;
 +    AVDictionaryEntry *t = NULL;
 +    int sample_rate, nb_channels;
 +    int64_t channel_layout;
 +    int ret = 0;
 +    int stream_lowres = lowres;
 +
 +    if (stream_index < 0 || stream_index >= ic->nb_streams)
 +        return -1;
 +
 +    avctx = avcodec_alloc_context3(NULL);
 +    if (!avctx)
 +        return AVERROR(ENOMEM);
 +
 +    ret = avcodec_parameters_to_context(avctx, ic->streams[stream_index]->codecpar);
 +    if (ret < 0)
 +        goto fail;
 +    av_codec_set_pkt_timebase(avctx, ic->streams[stream_index]->time_base);
 +
 +    codec = avcodec_find_decoder(avctx->codec_id);
 +
 +    switch(avctx->codec_type){
 +        case AVMEDIA_TYPE_AUDIO   : is->last_audio_stream    = stream_index; forced_codec_name =    audio_codec_name; break;
 +        case AVMEDIA_TYPE_SUBTITLE: is->last_subtitle_stream = stream_index; forced_codec_name = subtitle_codec_name; break;
 +        case AVMEDIA_TYPE_VIDEO   : is->last_video_stream    = stream_index; forced_codec_name =    video_codec_name; break;
 +    }
 +    if (forced_codec_name)
 +        codec = avcodec_find_decoder_by_name(forced_codec_name);
 +    if (!codec) {
 +        if (forced_codec_name) av_log(NULL, AV_LOG_WARNING,
 +                                      "No codec could be found with name '%s'\n", forced_codec_name);
 +        else                   av_log(NULL, AV_LOG_WARNING,
 +                                      "No codec could be found with id %d\n", avctx->codec_id);
 +        ret = AVERROR(EINVAL);
 +        goto fail;
 +    }
 +
 +    avctx->codec_id = codec->id;
 +    if(stream_lowres > av_codec_get_max_lowres(codec)){
 +        av_log(avctx, AV_LOG_WARNING, "The maximum value for lowres supported by the decoder is %d\n",
 +                av_codec_get_max_lowres(codec));
 +        stream_lowres = av_codec_get_max_lowres(codec);
 +    }
 +    av_codec_set_lowres(avctx, stream_lowres);
 +
 +#if FF_API_EMU_EDGE
 +    if(stream_lowres) avctx->flags |= CODEC_FLAG_EMU_EDGE;
 +#endif
 +    if (fast)
 +        avctx->flags2 |= AV_CODEC_FLAG2_FAST;
 +#if FF_API_EMU_EDGE
 +    if(codec->capabilities & AV_CODEC_CAP_DR1)
 +        avctx->flags |= CODEC_FLAG_EMU_EDGE;
 +#endif
 +
 +    opts = filter_codec_opts(codec_opts, avctx->codec_id, ic, ic->streams[stream_index], codec);
 +    if (!av_dict_get(opts, "threads", NULL, 0))
 +        av_dict_set(&opts, "threads", "auto", 0);
 +    if (stream_lowres)
 +        av_dict_set_int(&opts, "lowres", stream_lowres, 0);
 +    if (avctx->codec_type == AVMEDIA_TYPE_VIDEO || avctx->codec_type == AVMEDIA_TYPE_AUDIO)
 +        av_dict_set(&opts, "refcounted_frames", "1", 0);
 +    if ((ret = avcodec_open2(avctx, codec, &opts)) < 0) {
 +        goto fail;
 +    }
 +    if ((t = av_dict_get(opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
 +        av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
 +        ret =  AVERROR_OPTION_NOT_FOUND;
 +        goto fail;
 +    }
 +
 +    is->eof = 0;
 +    ic->streams[stream_index]->discard = AVDISCARD_DEFAULT;
 +    switch (avctx->codec_type) {
 +    case AVMEDIA_TYPE_AUDIO:
 +#if CONFIG_AVFILTER
 +        {
 +            AVFilterContext *sink;
 +
 +            is->audio_filter_src.freq           = avctx->sample_rate;
 +            is->audio_filter_src.channels       = avctx->channels;
 +            is->audio_filter_src.channel_layout = get_valid_channel_layout(avctx->channel_layout, avctx->channels);
 +            is->audio_filter_src.fmt            = avctx->sample_fmt;
 +            if ((ret = configure_audio_filters(is, afilters, 0)) < 0)
 +                goto fail;
 +            sink = is->out_audio_filter;
 +            sample_rate    = av_buffersink_get_sample_rate(sink);
 +            nb_channels    = av_buffersink_get_channels(sink);
 +            channel_layout = av_buffersink_get_channel_layout(sink);
 +        }
 +#else
 +        sample_rate    = avctx->sample_rate;
 +        nb_channels    = avctx->channels;
 +        channel_layout = avctx->channel_layout;
 +#endif
 +
 +        /* prepare audio output */
 +        if ((ret = audio_open(is, channel_layout, nb_channels, sample_rate, &is->audio_tgt)) < 0)
 +            goto fail;
 +        is->audio_hw_buf_size = ret;
 +        is->audio_src = is->audio_tgt;
 +        is->audio_buf_size  = 0;
 +        is->audio_buf_index = 0;
 +
 +        /* init averaging filter */
 +        is->audio_diff_avg_coef  = exp(log(0.01) / AUDIO_DIFF_AVG_NB);
 +        is->audio_diff_avg_count = 0;
 +        /* since we do not have a precise anough audio FIFO fullness,
 +           we correct audio sync only if larger than this threshold */
 +        is->audio_diff_threshold = (double)(is->audio_hw_buf_size) / is->audio_tgt.bytes_per_sec;
 +
 +        is->audio_stream = stream_index;
 +        is->audio_st = ic->streams[stream_index];
 +
 +        decoder_init(&is->auddec, avctx, &is->audioq, is->continue_read_thread);
 +        if ((is->ic->iformat->flags & (AVFMT_NOBINSEARCH | AVFMT_NOGENSEARCH | AVFMT_NO_BYTE_SEEK)) && !is->ic->iformat->read_seek) {
 +            is->auddec.start_pts = is->audio_st->start_time;
 +            is->auddec.start_pts_tb = is->audio_st->time_base;
 +        }
 +        if ((ret = decoder_start(&is->auddec, audio_thread, is)) < 0)
 +            goto out;
 +        SDL_PauseAudio(0);
 +        break;
 +    case AVMEDIA_TYPE_VIDEO:
 +        is->video_stream = stream_index;
 +        is->video_st = ic->streams[stream_index];
 +
 +        decoder_init(&is->viddec, avctx, &is->videoq, is->continue_read_thread);
 +        if ((ret = decoder_start(&is->viddec, video_thread, is)) < 0)
 +            goto out;
 +        is->queue_attachments_req = 1;
 +        break;
 +    case AVMEDIA_TYPE_SUBTITLE:
 +        is->subtitle_stream = stream_index;
 +        is->subtitle_st = ic->streams[stream_index];
 +
 +        decoder_init(&is->subdec, avctx, &is->subtitleq, is->continue_read_thread);
 +        if ((ret = decoder_start(&is->subdec, subtitle_thread, is)) < 0)
 +            goto out;
 +        break;
 +    default:
 +        break;
 +    }
 +    goto out;
 +
 +fail:
 +    avcodec_free_context(&avctx);
 +out:
 +    av_dict_free(&opts);
 +
 +    return ret;
 +}
 +
 +static int decode_interrupt_cb(void *ctx)
 +{
 +    VideoState *is = ctx;
 +    return is->abort_request;
 +}
 +
 +static int stream_has_enough_packets(AVStream *st, int stream_id, PacketQueue *queue) {
 +    return stream_id < 0 ||
 +           queue->abort_request ||
 +           (st->disposition & AV_DISPOSITION_ATTACHED_PIC) ||
 +           queue->nb_packets > MIN_FRAMES && (!queue->duration || av_q2d(st->time_base) * queue->duration > 1.0);
 +}
 +
 +static int is_realtime(AVFormatContext *s)
 +{
 +    if(   !strcmp(s->iformat->name, "rtp")
 +       || !strcmp(s->iformat->name, "rtsp")
 +       || !strcmp(s->iformat->name, "sdp")
 +    )
 +        return 1;
 +
 +    if(s->pb && (   !strncmp(s->filename, "rtp:", 4)
 +                 || !strncmp(s->filename, "udp:", 4)
 +                )
 +    )
 +        return 1;
 +    return 0;
 +}
 +
 +/* this thread gets the stream from the disk or the network */
 +static int read_thread(void *arg)
 +{
 +    VideoState *is = arg;
 +    AVFormatContext *ic = NULL;
 +    int err, i, ret;
 +    int st_index[AVMEDIA_TYPE_NB];
 +    AVPacket pkt1, *pkt = &pkt1;
 +    int64_t stream_start_time;
 +    int pkt_in_play_range = 0;
 +    AVDictionaryEntry *t;
 +    AVDictionary **opts;
 +    int orig_nb_streams;
 +    SDL_mutex *wait_mutex = SDL_CreateMutex();
 +    int scan_all_pmts_set = 0;
 +    int64_t pkt_ts;
 +
 +    if (!wait_mutex) {
 +        av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());
 +        ret = AVERROR(ENOMEM);
 +        goto fail;
 +    }
 +
 +    memset(st_index, -1, sizeof(st_index));
 +    is->last_video_stream = is->video_stream = -1;
 +    is->last_audio_stream = is->audio_stream = -1;
 +    is->last_subtitle_stream = is->subtitle_stream = -1;
 +    is->eof = 0;
 +
 +    ic = avformat_alloc_context();
 +    if (!ic) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not allocate context.\n");
 +        ret = AVERROR(ENOMEM);
 +        goto fail;
 +    }
 +    ic->interrupt_callback.callback = decode_interrupt_cb;
 +    ic->interrupt_callback.opaque = is;
 +    if (!av_dict_get(format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE)) {
 +        av_dict_set(&format_opts, "scan_all_pmts", "1", AV_DICT_DONT_OVERWRITE);
 +        scan_all_pmts_set = 1;
 +    }
 +    err = avformat_open_input(&ic, is->filename, is->iformat, &format_opts);
 +    if (err < 0) {
 +        print_error(is->filename, err);
 +        ret = -1;
 +        goto fail;
 +    }
 +    if (scan_all_pmts_set)
 +        av_dict_set(&format_opts, "scan_all_pmts", NULL, AV_DICT_MATCH_CASE);
 +
 +    if ((t = av_dict_get(format_opts, "", NULL, AV_DICT_IGNORE_SUFFIX))) {
 +        av_log(NULL, AV_LOG_ERROR, "Option %s not found.\n", t->key);
 +        ret = AVERROR_OPTION_NOT_FOUND;
 +        goto fail;
 +    }
 +    is->ic = ic;
 +
 +    if (genpts)
 +        ic->flags |= AVFMT_FLAG_GENPTS;
 +
 +    av_format_inject_global_side_data(ic);
 +
 +    opts = setup_find_stream_info_opts(ic, codec_opts);
 +    orig_nb_streams = ic->nb_streams;
 +
 +    err = avformat_find_stream_info(ic, opts);
 +
 +    for (i = 0; i < orig_nb_streams; i++)
 +        av_dict_free(&opts[i]);
 +    av_freep(&opts);
 +
 +    if (err < 0) {
 +        av_log(NULL, AV_LOG_WARNING,
 +               "%s: could not find codec parameters\n", is->filename);
 +        ret = -1;
 +        goto fail;
 +    }
 +
 +    if (ic->pb)
 +        ic->pb->eof_reached = 0; // FIXME hack, ffplay maybe should not use avio_feof() to test for the end
 +
 +    if (seek_by_bytes < 0)
 +        seek_by_bytes = !!(ic->iformat->flags & AVFMT_TS_DISCONT) && strcmp("ogg", ic->iformat->name);
 +
 +    is->max_frame_duration = (ic->iformat->flags & AVFMT_TS_DISCONT) ? 10.0 : 3600.0;
 +
 +    if (!window_title && (t = av_dict_get(ic->metadata, "title", NULL, 0)))
 +        window_title = av_asprintf("%s - %s", t->value, input_filename);
 +
 +    /* if seeking requested, we execute it */
 +    if (start_time != AV_NOPTS_VALUE) {
 +        int64_t timestamp;
 +
 +        timestamp = start_time;
 +        /* add the stream start time */
 +        if (ic->start_time != AV_NOPTS_VALUE)
 +            timestamp += ic->start_time;
 +        ret = avformat_seek_file(ic, -1, INT64_MIN, timestamp, INT64_MAX, 0);
 +        if (ret < 0) {
 +            av_log(NULL, AV_LOG_WARNING, "%s: could not seek to position %0.3f\n",
 +                    is->filename, (double)timestamp / AV_TIME_BASE);
 +        }
 +    }
 +
 +    is->realtime = is_realtime(ic);
 +
 +    if (show_status)
 +        av_dump_format(ic, 0, is->filename, 0);
 +
 +    for (i = 0; i < ic->nb_streams; i++) {
 +        AVStream *st = ic->streams[i];
 +        enum AVMediaType type = st->codecpar->codec_type;
 +        st->discard = AVDISCARD_ALL;
 +        if (type >= 0 && wanted_stream_spec[type] && st_index[type] == -1)
 +            if (avformat_match_stream_specifier(ic, st, wanted_stream_spec[type]) > 0)
 +                st_index[type] = i;
 +    }
 +    for (i = 0; i < AVMEDIA_TYPE_NB; i++) {
 +        if (wanted_stream_spec[i] && st_index[i] == -1) {
 +            av_log(NULL, AV_LOG_ERROR, "Stream specifier %s does not match any %s stream\n", wanted_stream_spec[i], av_get_media_type_string(i));
 +            st_index[i] = INT_MAX;
 +        }
 +    }
 +
 +    if (!video_disable)
 +        st_index[AVMEDIA_TYPE_VIDEO] =
 +            av_find_best_stream(ic, AVMEDIA_TYPE_VIDEO,
 +                                st_index[AVMEDIA_TYPE_VIDEO], -1, NULL, 0);
 +    if (!audio_disable)
 +        st_index[AVMEDIA_TYPE_AUDIO] =
 +            av_find_best_stream(ic, AVMEDIA_TYPE_AUDIO,
 +                                st_index[AVMEDIA_TYPE_AUDIO],
 +                                st_index[AVMEDIA_TYPE_VIDEO],
 +                                NULL, 0);
 +    if (!video_disable && !subtitle_disable)
 +        st_index[AVMEDIA_TYPE_SUBTITLE] =
 +            av_find_best_stream(ic, AVMEDIA_TYPE_SUBTITLE,
 +                                st_index[AVMEDIA_TYPE_SUBTITLE],
 +                                (st_index[AVMEDIA_TYPE_AUDIO] >= 0 ?
 +                                 st_index[AVMEDIA_TYPE_AUDIO] :
 +                                 st_index[AVMEDIA_TYPE_VIDEO]),
 +                                NULL, 0);
 +
 +    is->show_mode = show_mode;
 +    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
 +        AVStream *st = ic->streams[st_index[AVMEDIA_TYPE_VIDEO]];
 +        AVCodecParameters *codecpar = st->codecpar;
 +        AVRational sar = av_guess_sample_aspect_ratio(ic, st, NULL);
 +        if (codecpar->width)
 +            set_default_window_size(codecpar->width, codecpar->height, sar);
 +    }
 +
 +    /* open the streams */
 +    if (st_index[AVMEDIA_TYPE_AUDIO] >= 0) {
 +        stream_component_open(is, st_index[AVMEDIA_TYPE_AUDIO]);
 +    }
 +
 +    ret = -1;
 +    if (st_index[AVMEDIA_TYPE_VIDEO] >= 0) {
 +        ret = stream_component_open(is, st_index[AVMEDIA_TYPE_VIDEO]);
 +    }
 +    if (is->show_mode == SHOW_MODE_NONE)
 +        is->show_mode = ret >= 0 ? SHOW_MODE_VIDEO : SHOW_MODE_RDFT;
 +
 +    if (st_index[AVMEDIA_TYPE_SUBTITLE] >= 0) {
 +        stream_component_open(is, st_index[AVMEDIA_TYPE_SUBTITLE]);
 +    }
 +
 +    if (is->video_stream < 0 && is->audio_stream < 0) {
 +        av_log(NULL, AV_LOG_FATAL, "Failed to open file '%s' or configure filtergraph\n",
 +               is->filename);
 +        ret = -1;
 +        goto fail;
 +    }
 +
 +    if (infinite_buffer < 0 && is->realtime)
 +        infinite_buffer = 1;
 +
 +    for (;;) {
 +        if (is->abort_request)
 +            break;
 +        if (is->paused != is->last_paused) {
 +            is->last_paused = is->paused;
 +            if (is->paused)
 +                is->read_pause_return = av_read_pause(ic);
 +            else
 +                av_read_play(ic);
 +        }
 +#if CONFIG_RTSP_DEMUXER || CONFIG_MMSH_PROTOCOL
 +        if (is->paused &&
 +                (!strcmp(ic->iformat->name, "rtsp") ||
 +                 (ic->pb && !strncmp(input_filename, "mmsh:", 5)))) {
 +            /* wait 10 ms to avoid trying to get another packet */
 +            /* XXX: horrible */
 +            SDL_Delay(10);
 +            continue;
 +        }
 +#endif
 +        if (is->seek_req) {
 +            int64_t seek_target = is->seek_pos;
 +            int64_t seek_min    = is->seek_rel > 0 ? seek_target - is->seek_rel + 2: INT64_MIN;
 +            int64_t seek_max    = is->seek_rel < 0 ? seek_target - is->seek_rel - 2: INT64_MAX;
 +// FIXME the +-2 is due to rounding being not done in the correct direction in generation
 +//      of the seek_pos/seek_rel variables
 +
 +            ret = avformat_seek_file(is->ic, -1, seek_min, seek_target, seek_max, is->seek_flags);
 +            if (ret < 0) {
 +                av_log(NULL, AV_LOG_ERROR,
 +                       "%s: error while seeking\n", is->ic->filename);
 +            } else {
 +                if (is->audio_stream >= 0) {
 +                    packet_queue_flush(&is->audioq);
 +                    packet_queue_put(&is->audioq, &flush_pkt);
 +                }
 +                if (is->subtitle_stream >= 0) {
 +                    packet_queue_flush(&is->subtitleq);
 +                    packet_queue_put(&is->subtitleq, &flush_pkt);
 +                }
 +                if (is->video_stream >= 0) {
 +                    packet_queue_flush(&is->videoq);
 +                    packet_queue_put(&is->videoq, &flush_pkt);
 +                }
 +                if (is->seek_flags & AVSEEK_FLAG_BYTE) {
 +                   set_clock(&is->extclk, NAN, 0);
 +                } else {
 +                   set_clock(&is->extclk, seek_target / (double)AV_TIME_BASE, 0);
 +                }
 +            }
 +            is->seek_req = 0;
 +            is->queue_attachments_req = 1;
 +            is->eof = 0;
 +            if (is->paused)
 +                step_to_next_frame(is);
 +        }
 +        if (is->queue_attachments_req) {
 +            if (is->video_st && is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC) {
 +                AVPacket copy;
 +                if ((ret = av_copy_packet(&copy, &is->video_st->attached_pic)) < 0)
 +                    goto fail;
 +                packet_queue_put(&is->videoq, &copy);
 +                packet_queue_put_nullpacket(&is->videoq, is->video_stream);
 +            }
 +            is->queue_attachments_req = 0;
 +        }
 +
 +        /* if the queue are full, no need to read more */
 +        if (infinite_buffer<1 &&
 +              (is->audioq.size + is->videoq.size + is->subtitleq.size > MAX_QUEUE_SIZE
 +            || (stream_has_enough_packets(is->audio_st, is->audio_stream, &is->audioq) &&
 +                stream_has_enough_packets(is->video_st, is->video_stream, &is->videoq) &&
 +                stream_has_enough_packets(is->subtitle_st, is->subtitle_stream, &is->subtitleq)))) {
 +            /* wait 10 ms */
 +            SDL_LockMutex(wait_mutex);
 +            SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
 +            SDL_UnlockMutex(wait_mutex);
 +            continue;
 +        }
 +        if (!is->paused &&
 +            (!is->audio_st || (is->auddec.finished == is->audioq.serial && frame_queue_nb_remaining(&is->sampq) == 0)) &&
 +            (!is->video_st || (is->viddec.finished == is->videoq.serial && frame_queue_nb_remaining(&is->pictq) == 0))) {
 +            if (loop != 1 && (!loop || --loop)) {
 +                stream_seek(is, start_time != AV_NOPTS_VALUE ? start_time : 0, 0, 0);
 +            } else if (autoexit) {
 +                ret = AVERROR_EOF;
 +                goto fail;
 +            }
 +        }
 +        ret = av_read_frame(ic, pkt);
 +        if (ret < 0) {
 +            if ((ret == AVERROR_EOF || avio_feof(ic->pb)) && !is->eof) {
 +                if (is->video_stream >= 0)
 +                    packet_queue_put_nullpacket(&is->videoq, is->video_stream);
 +                if (is->audio_stream >= 0)
 +                    packet_queue_put_nullpacket(&is->audioq, is->audio_stream);
 +                if (is->subtitle_stream >= 0)
 +                    packet_queue_put_nullpacket(&is->subtitleq, is->subtitle_stream);
 +                is->eof = 1;
 +            }
 +            if (ic->pb && ic->pb->error)
 +                break;
 +            SDL_LockMutex(wait_mutex);
 +            SDL_CondWaitTimeout(is->continue_read_thread, wait_mutex, 10);
 +            SDL_UnlockMutex(wait_mutex);
 +            continue;
 +        } else {
 +            is->eof = 0;
 +        }
 +        /* check if packet is in play range specified by user, then queue, otherwise discard */
 +        stream_start_time = ic->streams[pkt->stream_index]->start_time;
 +        pkt_ts = pkt->pts == AV_NOPTS_VALUE ? pkt->dts : pkt->pts;
 +        pkt_in_play_range = duration == AV_NOPTS_VALUE ||
 +                (pkt_ts - (stream_start_time != AV_NOPTS_VALUE ? stream_start_time : 0)) *
 +                av_q2d(ic->streams[pkt->stream_index]->time_base) -
 +                (double)(start_time != AV_NOPTS_VALUE ? start_time : 0) / 1000000
 +                <= ((double)duration / 1000000);
 +        if (pkt->stream_index == is->audio_stream && pkt_in_play_range) {
 +            packet_queue_put(&is->audioq, pkt);
 +        } else if (pkt->stream_index == is->video_stream && pkt_in_play_range
 +                   && !(is->video_st->disposition & AV_DISPOSITION_ATTACHED_PIC)) {
 +            packet_queue_put(&is->videoq, pkt);
 +        } else if (pkt->stream_index == is->subtitle_stream && pkt_in_play_range) {
 +            packet_queue_put(&is->subtitleq, pkt);
 +        } else {
 +            av_packet_unref(pkt);
 +        }
 +    }
 +
 +    ret = 0;
 + fail:
 +    if (ic && !is->ic)
 +        avformat_close_input(&ic);
 +
 +    if (ret != 0) {
 +        SDL_Event event;
 +
 +        event.type = FF_QUIT_EVENT;
 +        event.user.data1 = is;
 +        SDL_PushEvent(&event);
 +    }
 +    SDL_DestroyMutex(wait_mutex);
 +    return 0;
 +}
 +
 +static VideoState *stream_open(const char *filename, AVInputFormat *iformat)
 +{
 +    VideoState *is;
 +
 +    is = av_mallocz(sizeof(VideoState));
 +    if (!is)
 +        return NULL;
 +    is->filename = av_strdup(filename);
 +    if (!is->filename)
 +        goto fail;
 +    is->iformat = iformat;
 +    is->ytop    = 0;
 +    is->xleft   = 0;
 +
 +    /* start video display */
 +    if (frame_queue_init(&is->pictq, &is->videoq, VIDEO_PICTURE_QUEUE_SIZE, 1) < 0)
 +        goto fail;
 +    if (frame_queue_init(&is->subpq, &is->subtitleq, SUBPICTURE_QUEUE_SIZE, 0) < 0)
 +        goto fail;
 +    if (frame_queue_init(&is->sampq, &is->audioq, SAMPLE_QUEUE_SIZE, 1) < 0)
 +        goto fail;
 +
 +    if (packet_queue_init(&is->videoq) < 0 ||
 +        packet_queue_init(&is->audioq) < 0 ||
 +        packet_queue_init(&is->subtitleq) < 0)
 +        goto fail;
 +
 +    if (!(is->continue_read_thread = SDL_CreateCond())) {
 +        av_log(NULL, AV_LOG_FATAL, "SDL_CreateCond(): %s\n", SDL_GetError());
 +        goto fail;
 +    }
 +
 +    init_clock(&is->vidclk, &is->videoq.serial);
 +    init_clock(&is->audclk, &is->audioq.serial);
 +    init_clock(&is->extclk, &is->extclk.serial);
 +    is->audio_clock_serial = -1;
 +    if (startup_volume < 0)
 +        av_log(NULL, AV_LOG_WARNING, "-volume=%d < 0, setting to 0\n", startup_volume);
 +    if (startup_volume > 100)
 +        av_log(NULL, AV_LOG_WARNING, "-volume=%d > 100, setting to 100\n", startup_volume);
 +    startup_volume = av_clip(startup_volume, 0, 100);
 +    startup_volume = av_clip(SDL_MIX_MAXVOLUME * startup_volume / 100, 0, SDL_MIX_MAXVOLUME);
 +    is->audio_volume = startup_volume;
 +    is->muted = 0;
 +    is->av_sync_type = av_sync_type;
 +    is->read_tid     = SDL_CreateThread(read_thread, "read_thread", is);
 +    if (!is->read_tid) {
 +        av_log(NULL, AV_LOG_FATAL, "SDL_CreateThread(): %s\n", SDL_GetError());
 +fail:
 +        stream_close(is);
 +        return NULL;
 +    }
 +    return is;
 +}
 +
 +static void stream_cycle_channel(VideoState *is, int codec_type)
 +{
 +    AVFormatContext *ic = is->ic;
 +    int start_index, stream_index;
 +    int old_index;
 +    AVStream *st;
 +    AVProgram *p = NULL;
 +    int nb_streams = is->ic->nb_streams;
 +
 +    if (codec_type == AVMEDIA_TYPE_VIDEO) {
 +        start_index = is->last_video_stream;
 +        old_index = is->video_stream;
 +    } else if (codec_type == AVMEDIA_TYPE_AUDIO) {
 +        start_index = is->last_audio_stream;
 +        old_index = is->audio_stream;
 +    } else {
 +        start_index = is->last_subtitle_stream;
 +        old_index = is->subtitle_stream;
 +    }
 +    stream_index = start_index;
 +
 +    if (codec_type != AVMEDIA_TYPE_VIDEO && is->video_stream != -1) {
 +        p = av_find_program_from_stream(ic, NULL, is->video_stream);
 +        if (p) {
 +            nb_streams = p->nb_stream_indexes;
 +            for (start_index = 0; start_index < nb_streams; start_index++)
 +                if (p->stream_index[start_index] == stream_index)
 +                    break;
 +            if (start_index == nb_streams)
 +                start_index = -1;
 +            stream_index = start_index;
 +        }
 +    }
 +
 +    for (;;) {
 +        if (++stream_index >= nb_streams)
 +        {
 +            if (codec_type == AVMEDIA_TYPE_SUBTITLE)
 +            {
 +                stream_index = -1;
 +                is->last_subtitle_stream = -1;
 +                goto the_end;
 +            }
 +            if (start_index == -1)
 +                return;
 +            stream_index = 0;
 +        }
 +        if (stream_index == start_index)
 +            return;
 +        st = is->ic->streams[p ? p->stream_index[stream_index] : stream_index];
 +        if (st->codecpar->codec_type == codec_type) {
 +            /* check that parameters are OK */
 +            switch (codec_type) {
 +            case AVMEDIA_TYPE_AUDIO:
 +                if (st->codecpar->sample_rate != 0 &&
 +                    st->codecpar->channels != 0)
 +                    goto the_end;
 +                break;
 +            case AVMEDIA_TYPE_VIDEO:
 +            case AVMEDIA_TYPE_SUBTITLE:
 +                goto the_end;
 +            default:
 +                break;
 +            }
 +        }
 +    }
 + the_end:
 +    if (p && stream_index != -1)
 +        stream_index = p->stream_index[stream_index];
 +    av_log(NULL, AV_LOG_INFO, "Switch %s stream from #%d to #%d\n",
 +           av_get_media_type_string(codec_type),
 +           old_index,
 +           stream_index);
 +
 +    stream_component_close(is, old_index);
 +    stream_component_open(is, stream_index);
 +}
 +
 +
 +static void toggle_full_screen(VideoState *is)
 +{
 +    is_full_screen = !is_full_screen;
 +    SDL_SetWindowFullscreen(window, is_full_screen ? SDL_WINDOW_FULLSCREEN_DESKTOP : 0);
 +}
 +
 +static void toggle_audio_display(VideoState *is)
 +{
 +    int next = is->show_mode;
 +    do {
 +        next = (next + 1) % SHOW_MODE_NB;
 +    } while (next != is->show_mode && (next == SHOW_MODE_VIDEO && !is->video_st || next != SHOW_MODE_VIDEO && !is->audio_st));
 +    if (is->show_mode != next) {
 +        is->force_refresh = 1;
 +        is->show_mode = next;
 +    }
 +}
 +
 +static void refresh_loop_wait_event(VideoState *is, SDL_Event *event) {
 +    double remaining_time = 0.0;
 +    SDL_PumpEvents();
 +    while (!SDL_PeepEvents(event, 1, SDL_GETEVENT, SDL_FIRSTEVENT, SDL_LASTEVENT)) {
 +        if (!cursor_hidden && av_gettime_relative() - cursor_last_shown > CURSOR_HIDE_DELAY) {
 +            SDL_ShowCursor(0);
 +            cursor_hidden = 1;
 +        }
 +        if (remaining_time > 0.0)
 +            av_usleep((int64_t)(remaining_time * 1000000.0));
 +        remaining_time = REFRESH_RATE;
 +        if (is->show_mode != SHOW_MODE_NONE && (!is->paused || is->force_refresh))
 +            video_refresh(is, &remaining_time);
 +        SDL_PumpEvents();
 +    }
 +}
 +
 +static void seek_chapter(VideoState *is, int incr)
 +{
 +    int64_t pos = get_master_clock(is) * AV_TIME_BASE;
 +    int i;
 +
 +    if (!is->ic->nb_chapters)
 +        return;
 +
 +    /* find the current chapter */
 +    for (i = 0; i < is->ic->nb_chapters; i++) {
 +        AVChapter *ch = is->ic->chapters[i];
 +        if (av_compare_ts(pos, AV_TIME_BASE_Q, ch->start, ch->time_base) < 0) {
 +            i--;
 +            break;
 +        }
 +    }
 +
 +    i += incr;
 +    i = FFMAX(i, 0);
 +    if (i >= is->ic->nb_chapters)
 +        return;
 +
 +    av_log(NULL, AV_LOG_VERBOSE, "Seeking to chapter %d.\n", i);
 +    stream_seek(is, av_rescale_q(is->ic->chapters[i]->start, is->ic->chapters[i]->time_base,
 +                                 AV_TIME_BASE_Q), 0, 0);
 +}
 +
 +/* handle an event sent by the GUI */
 +static void event_loop(VideoState *cur_stream)
 +{
 +    SDL_Event event;
 +    double incr, pos, frac;
 +
 +    for (;;) {
 +        double x;
 +        refresh_loop_wait_event(cur_stream, &event);
 +        switch (event.type) {
 +        case SDL_KEYDOWN:
 +            if (exit_on_keydown) {
 +                do_exit(cur_stream);
 +                break;
 +            }
 +            switch (event.key.keysym.sym) {
 +            case SDLK_ESCAPE:
 +            case SDLK_q:
 +                do_exit(cur_stream);
 +                break;
 +            case SDLK_f:
 +                toggle_full_screen(cur_stream);
 +                cur_stream->force_refresh = 1;
 +                break;
 +            case SDLK_p:
 +            case SDLK_SPACE:
 +                toggle_pause(cur_stream);
 +                break;
 +            case SDLK_m:
 +                toggle_mute(cur_stream);
 +                break;
 +            case SDLK_KP_MULTIPLY:
 +            case SDLK_0:
 +                update_volume(cur_stream, 1, SDL_VOLUME_STEP);
 +                break;
 +            case SDLK_KP_DIVIDE:
 +            case SDLK_9:
 +                update_volume(cur_stream, -1, SDL_VOLUME_STEP);
 +                break;
 +            case SDLK_s: // S: Step to next frame
 +                step_to_next_frame(cur_stream);
 +                break;
 +            case SDLK_a:
 +                stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
 +                break;
 +            case SDLK_v:
 +                stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
 +                break;
 +            case SDLK_c:
 +                stream_cycle_channel(cur_stream, AVMEDIA_TYPE_VIDEO);
 +                stream_cycle_channel(cur_stream, AVMEDIA_TYPE_AUDIO);
 +                stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
 +                break;
 +            case SDLK_t:
 +                stream_cycle_channel(cur_stream, AVMEDIA_TYPE_SUBTITLE);
 +                break;
 +            case SDLK_w:
 +#if CONFIG_AVFILTER
 +                if (cur_stream->show_mode == SHOW_MODE_VIDEO && cur_stream->vfilter_idx < nb_vfilters - 1) {
 +                    if (++cur_stream->vfilter_idx >= nb_vfilters)
 +                        cur_stream->vfilter_idx = 0;
 +                } else {
 +                    cur_stream->vfilter_idx = 0;
 +                    toggle_audio_display(cur_stream);
 +                }
 +#else
 +                toggle_audio_display(cur_stream);
 +#endif
 +                break;
 +            case SDLK_PAGEUP:
 +                if (cur_stream->ic->nb_chapters <= 1) {
 +                    incr = 600.0;
 +                    goto do_seek;
 +                }
 +                seek_chapter(cur_stream, 1);
 +                break;
 +            case SDLK_PAGEDOWN:
 +                if (cur_stream->ic->nb_chapters <= 1) {
 +                    incr = -600.0;
 +                    goto do_seek;
 +                }
 +                seek_chapter(cur_stream, -1);
 +                break;
 +            case SDLK_LEFT:
 +                incr = -10.0;
 +                goto do_seek;
 +            case SDLK_RIGHT:
 +                incr = 10.0;
 +                goto do_seek;
 +            case SDLK_UP:
 +                incr = 60.0;
 +                goto do_seek;
 +            case SDLK_DOWN:
 +                incr = -60.0;
 +            do_seek:
 +                    if (seek_by_bytes) {
 +                        pos = -1;
 +                        if (pos < 0 && cur_stream->video_stream >= 0)
 +                            pos = frame_queue_last_pos(&cur_stream->pictq);
 +                        if (pos < 0 && cur_stream->audio_stream >= 0)
 +                            pos = frame_queue_last_pos(&cur_stream->sampq);
 +                        if (pos < 0)
 +                            pos = avio_tell(cur_stream->ic->pb);
 +                        if (cur_stream->ic->bit_rate)
 +                            incr *= cur_stream->ic->bit_rate / 8.0;
 +                        else
 +                            incr *= 180000.0;
 +                        pos += incr;
 +                        stream_seek(cur_stream, pos, incr, 1);
 +                    } else {
 +                        pos = get_master_clock(cur_stream);
 +                        if (isnan(pos))
 +                            pos = (double)cur_stream->seek_pos / AV_TIME_BASE;
 +                        pos += incr;
 +                        if (cur_stream->ic->start_time != AV_NOPTS_VALUE && pos < cur_stream->ic->start_time / (double)AV_TIME_BASE)
 +                            pos = cur_stream->ic->start_time / (double)AV_TIME_BASE;
 +                        stream_seek(cur_stream, (int64_t)(pos * AV_TIME_BASE), (int64_t)(incr * AV_TIME_BASE), 0);
 +                    }
 +                break;
 +            default:
 +                break;
 +            }
 +            break;
 +        case SDL_MOUSEBUTTONDOWN:
 +            if (exit_on_mousedown) {
 +                do_exit(cur_stream);
 +                break;
 +            }
 +            if (event.button.button == SDL_BUTTON_LEFT) {
 +                static int64_t last_mouse_left_click = 0;
 +                if (av_gettime_relative() - last_mouse_left_click <= 500000) {
 +                    toggle_full_screen(cur_stream);
 +                    cur_stream->force_refresh = 1;
 +                    last_mouse_left_click = 0;
 +                } else {
 +                    last_mouse_left_click = av_gettime_relative();
 +                }
 +            }
 +        case SDL_MOUSEMOTION:
 +            if (cursor_hidden) {
 +                SDL_ShowCursor(1);
 +                cursor_hidden = 0;
 +            }
 +            cursor_last_shown = av_gettime_relative();
 +            if (event.type == SDL_MOUSEBUTTONDOWN) {
 +                if (event.button.button != SDL_BUTTON_RIGHT)
 +                    break;
 +                x = event.button.x;
 +            } else {
 +                if (!(event.motion.state & SDL_BUTTON_RMASK))
 +                    break;
 +                x = event.motion.x;
 +            }
 +                if (seek_by_bytes || cur_stream->ic->duration <= 0) {
 +                    uint64_t size =  avio_size(cur_stream->ic->pb);
 +                    stream_seek(cur_stream, size*x/cur_stream->width, 0, 1);
 +                } else {
 +                    int64_t ts;
 +                    int ns, hh, mm, ss;
 +                    int tns, thh, tmm, tss;
 +                    tns  = cur_stream->ic->duration / 1000000LL;
 +                    thh  = tns / 3600;
 +                    tmm  = (tns % 3600) / 60;
 +                    tss  = (tns % 60);
 +                    frac = x / cur_stream->width;
 +                    ns   = frac * tns;
 +                    hh   = ns / 3600;
 +                    mm   = (ns % 3600) / 60;
 +                    ss   = (ns % 60);
 +                    av_log(NULL, AV_LOG_INFO,
 +                           "Seek to %2.0f%% (%2d:%02d:%02d) of total duration (%2d:%02d:%02d)       \n", frac*100,
 +                            hh, mm, ss, thh, tmm, tss);
 +                    ts = frac * cur_stream->ic->duration;
 +                    if (cur_stream->ic->start_time != AV_NOPTS_VALUE)
 +                        ts += cur_stream->ic->start_time;
 +                    stream_seek(cur_stream, ts, 0, 0);
 +                }
 +            break;
 +        case SDL_WINDOWEVENT:
 +            switch (event.window.event) {
 +                case SDL_WINDOWEVENT_RESIZED:
 +                    screen_width  = cur_stream->width  = event.window.data1;
 +                    screen_height = cur_stream->height = event.window.data2;
 +                    if (cur_stream->vis_texture) {
 +                        SDL_DestroyTexture(cur_stream->vis_texture);
 +                        cur_stream->vis_texture = NULL;
 +                    }
 +                case SDL_WINDOWEVENT_EXPOSED:
 +                    cur_stream->force_refresh = 1;
 +            }
 +            break;
 +        case SDL_QUIT:
 +        case FF_QUIT_EVENT:
 +            do_exit(cur_stream);
 +            break;
 +        default:
 +            break;
 +        }
 +    }
 +}
 +
 +static int opt_frame_size(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "Option -s is deprecated, use -video_size.\n");
 +    return opt_default(NULL, "video_size", arg);
 +}
 +
 +static int opt_width(void *optctx, const char *opt, const char *arg)
 +{
 +    screen_width = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
 +    return 0;
 +}
 +
 +static int opt_height(void *optctx, const char *opt, const char *arg)
 +{
 +    screen_height = parse_number_or_die(opt, arg, OPT_INT64, 1, INT_MAX);
 +    return 0;
 +}
 +
 +static int opt_format(void *optctx, const char *opt, const char *arg)
 +{
 +    file_iformat = av_find_input_format(arg);
 +    if (!file_iformat) {
 +        av_log(NULL, AV_LOG_FATAL, "Unknown input format: %s\n", arg);
 +        return AVERROR(EINVAL);
 +    }
 +    return 0;
 +}
 +
 +static int opt_frame_pix_fmt(void *optctx, const char *opt, const char *arg)
 +{
 +    av_log(NULL, AV_LOG_WARNING, "Option -pix_fmt is deprecated, use -pixel_format.\n");
 +    return opt_default(NULL, "pixel_format", arg);
 +}
 +
 +static int opt_sync(void *optctx, const char *opt, const char *arg)
 +{
 +    if (!strcmp(arg, "audio"))
 +        av_sync_type = AV_SYNC_AUDIO_MASTER;
 +    else if (!strcmp(arg, "video"))
 +        av_sync_type = AV_SYNC_VIDEO_MASTER;
 +    else if (!strcmp(arg, "ext"))
 +        av_sync_type = AV_SYNC_EXTERNAL_CLOCK;
 +    else {
 +        av_log(NULL, AV_LOG_ERROR, "Unknown value for %s: %s\n", opt, arg);
 +        exit(1);
 +    }
 +    return 0;
 +}
 +
 +static int opt_seek(void *optctx, const char *opt, const char *arg)
 +{
 +    start_time = parse_time_or_die(opt, arg, 1);
 +    return 0;
 +}
 +
 +static int opt_duration(void *optctx, const char *opt, const char *arg)
 +{
 +    duration = parse_time_or_die(opt, arg, 1);
 +    return 0;
 +}
 +
 +static int opt_show_mode(void *optctx, const char *opt, const char *arg)
 +{
 +    show_mode = !strcmp(arg, "video") ? SHOW_MODE_VIDEO :
 +                !strcmp(arg, "waves") ? SHOW_MODE_WAVES :
 +                !strcmp(arg, "rdft" ) ? SHOW_MODE_RDFT  :
 +                parse_number_or_die(opt, arg, OPT_INT, 0, SHOW_MODE_NB-1);
 +    return 0;
 +}
 +
 +static void opt_input_file(void *optctx, const char *filename)
 +{
 +    if (input_filename) {
 +        av_log(NULL, AV_LOG_FATAL,
 +               "Argument '%s' provided as input filename, but '%s' was already specified.\n",
 +                filename, input_filename);
 +        exit(1);
 +    }
 +    if (!strcmp(filename, "-"))
 +        filename = "pipe:";
 +    input_filename = filename;
 +}
 +
 +static int opt_codec(void *optctx, const char *opt, const char *arg)
 +{
 +   const char *spec = strchr(opt, ':');
 +   if (!spec) {
 +       av_log(NULL, AV_LOG_ERROR,
 +              "No media specifier was specified in '%s' in option '%s'\n",
 +               arg, opt);
 +       return AVERROR(EINVAL);
 +   }
 +   spec++;
 +   switch (spec[0]) {
 +   case 'a' :    audio_codec_name = arg; break;
 +   case 's' : subtitle_codec_name = arg; break;
 +   case 'v' :    video_codec_name = arg; break;
 +   default:
 +       av_log(NULL, AV_LOG_ERROR,
 +              "Invalid media specifier '%s' in option '%s'\n", spec, opt);
 +       return AVERROR(EINVAL);
 +   }
 +   return 0;
 +}
 +
 +static int dummy;
 +
 +static const OptionDef options[] = {
++    CMDUTILS_COMMON_OPTIONS
 +    { "x", HAS_ARG, { .func_arg = opt_width }, "force displayed width", "width" },
 +    { "y", HAS_ARG, { .func_arg = opt_height }, "force displayed height", "height" },
 +    { "s", HAS_ARG | OPT_VIDEO, { .func_arg = opt_frame_size }, "set frame size (WxH or abbreviation)", "size" },
 +    { "fs", OPT_BOOL, { &is_full_screen }, "force full screen" },
 +    { "an", OPT_BOOL, { &audio_disable }, "disable audio" },
 +    { "vn", OPT_BOOL, { &video_disable }, "disable video" },
 +    { "sn", OPT_BOOL, { &subtitle_disable }, "disable subtitling" },
 +    { "ast", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_AUDIO] }, "select desired audio stream", "stream_specifier" },
 +    { "vst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_VIDEO] }, "select desired video stream", "stream_specifier" },
 +    { "sst", OPT_STRING | HAS_ARG | OPT_EXPERT, { &wanted_stream_spec[AVMEDIA_TYPE_SUBTITLE] }, "select desired subtitle stream", "stream_specifier" },
 +    { "ss", HAS_ARG, { .func_arg = opt_seek }, "seek to a given position in seconds", "pos" },
 +    { "t", HAS_ARG, { .func_arg = opt_duration }, "play  \"duration\" seconds of audio/video", "duration" },
 +    { "bytes", OPT_INT | HAS_ARG, { &seek_by_bytes }, "seek by bytes 0=off 1=on -1=auto", "val" },
 +    { "nodisp", OPT_BOOL, { &display_disable }, "disable graphical display" },
 +    { "noborder", OPT_BOOL, { &borderless }, "borderless window" },
 +    { "volume", OPT_INT | HAS_ARG, { &startup_volume}, "set startup volume 0=min 100=max", "volume" },
 +    { "f", HAS_ARG, { .func_arg = opt_format }, "force format", "fmt" },
 +    { "pix_fmt", HAS_ARG | OPT_EXPERT | OPT_VIDEO, { .func_arg = opt_frame_pix_fmt }, "set pixel format", "format" },
 +    { "stats", OPT_BOOL | OPT_EXPERT, { &show_status }, "show status", "" },
 +    { "fast", OPT_BOOL | OPT_EXPERT, { &fast }, "non spec compliant optimizations", "" },
 +    { "genpts", OPT_BOOL | OPT_EXPERT, { &genpts }, "generate pts", "" },
 +    { "drp", OPT_INT | HAS_ARG | OPT_EXPERT, { &decoder_reorder_pts }, "let decoder reorder pts 0=off 1=on -1=auto", ""},
 +    { "lowres", OPT_INT | HAS_ARG | OPT_EXPERT, { &lowres }, "", "" },
 +    { "sync", HAS_ARG | OPT_EXPERT, { .func_arg = opt_sync }, "set audio-video sync. type (type=audio/video/ext)", "type" },
 +    { "autoexit", OPT_BOOL | OPT_EXPERT, { &autoexit }, "exit at the end", "" },
 +    { "exitonkeydown", OPT_BOOL | OPT_EXPERT, { &exit_on_keydown }, "exit on key down", "" },
 +    { "exitonmousedown", OPT_BOOL | OPT_EXPERT, { &exit_on_mousedown }, "exit on mouse down", "" },
 +    { "loop", OPT_INT | HAS_ARG | OPT_EXPERT, { &loop }, "set number of times the playback shall be looped", "loop count" },
 +    { "framedrop", OPT_BOOL | OPT_EXPERT, { &framedrop }, "drop frames when cpu is too slow", "" },
 +    { "infbuf", OPT_BOOL | OPT_EXPERT, { &infinite_buffer }, "don't limit the input buffer size (useful with realtime streams)", "" },
 +    { "window_title", OPT_STRING | HAS_ARG, { &window_title }, "set window title", "window title" },
 +#if CONFIG_AVFILTER
 +    { "vf", OPT_EXPERT | HAS_ARG, { .func_arg = opt_add_vfilter }, "set video filters", "filter_graph" },
 +    { "af", OPT_STRING | HAS_ARG, { &afilters }, "set audio filters", "filter_graph" },
 +#endif
 +    { "rdftspeed", OPT_INT | HAS_ARG| OPT_AUDIO | OPT_EXPERT, { &rdftspeed }, "rdft speed", "msecs" },
 +    { "showmode", HAS_ARG, { .func_arg = opt_show_mode}, "select show mode (0 = video, 1 = waves, 2 = RDFT)", "mode" },
 +    { "default", HAS_ARG | OPT_AUDIO | OPT_VIDEO | OPT_EXPERT, { .func_arg = opt_default }, "generic catch all option", "" },
 +    { "i", OPT_BOOL, { &dummy}, "read specified file", "input_file"},
 +    { "codec", HAS_ARG, { .func_arg = opt_codec}, "force decoder", "decoder_name" },
 +    { "acodec", HAS_ARG | OPT_STRING | OPT_EXPERT, {    &audio_codec_name }, "force audio decoder",    "decoder_name" },
 +    { "scodec", HAS_ARG | OPT_STRING | OPT_EXPERT, { &subtitle_codec_name }, "force subtitle decoder", "decoder_name" },
 +    { "vcodec", HAS_ARG | OPT_STRING | OPT_EXPERT, {    &video_codec_name }, "force video decoder",    "decoder_name" },
 +    { "autorotate", OPT_BOOL, { &autorotate }, "automatically rotate video", "" },
 +    { NULL, },
 +};
 +
 +static void show_usage(void)
 +{
 +    av_log(NULL, AV_LOG_INFO, "Simple media player\n");
 +    av_log(NULL, AV_LOG_INFO, "usage: %s [options] input_file\n", program_name);
 +    av_log(NULL, AV_LOG_INFO, "\n");
 +}
 +
 +void show_help_default(const char *opt, const char *arg)
 +{
 +    av_log_set_callback(log_callback_help);
 +    show_usage();
 +    show_help_options(options, "Main options:", 0, OPT_EXPERT, 0);
 +    show_help_options(options, "Advanced options:", OPT_EXPERT, 0, 0);
 +    printf("\n");
 +    show_help_children(avcodec_get_class(), AV_OPT_FLAG_DECODING_PARAM);
 +    show_help_children(avformat_get_class(), AV_OPT_FLAG_DECODING_PARAM);
 +#if !CONFIG_AVFILTER
 +    show_help_children(sws_get_class(), AV_OPT_FLAG_ENCODING_PARAM);
 +#else
 +    show_help_children(avfilter_get_class(), AV_OPT_FLAG_FILTERING_PARAM);
 +#endif
 +    printf("\nWhile playing:\n"
 +           "q, ESC              quit\n"
 +           "f                   toggle full screen\n"
 +           "p, SPC              pause\n"
 +           "m                   toggle mute\n"
 +           "9, 0                decrease and increase volume respectively\n"
 +           "/, *                decrease and increase volume respectively\n"
 +           "a                   cycle audio channel in the current program\n"
 +           "v                   cycle video channel\n"
 +           "t                   cycle subtitle channel in the current program\n"
 +           "c                   cycle program\n"
 +           "w                   cycle video filters or show modes\n"
 +           "s                   activate frame-step mode\n"
 +           "left/right          seek backward/forward 10 seconds\n"
 +           "down/up             seek backward/forward 1 minute\n"
 +           "page down/page up   seek backward/forward 10 minutes\n"
 +           "right mouse click   seek to percentage in file corresponding to fraction of width\n"
 +           "left double-click   toggle full screen\n"
 +           );
 +}
 +
 +static int lockmgr(void **mtx, enum AVLockOp op)
 +{
 +   switch(op) {
 +      case AV_LOCK_CREATE:
 +          *mtx = SDL_CreateMutex();
 +          if(!*mtx) {
 +              av_log(NULL, AV_LOG_FATAL, "SDL_CreateMutex(): %s\n", SDL_GetError());
 +              return 1;
 +          }
 +          return 0;
 +      case AV_LOCK_OBTAIN:
 +          return !!SDL_LockMutex(*mtx);
 +      case AV_LOCK_RELEASE:
 +          return !!SDL_UnlockMutex(*mtx);
 +      case AV_LOCK_DESTROY:
 +          SDL_DestroyMutex(*mtx);
 +          return 0;
 +   }
 +   return 1;
 +}
 +
 +/* Called from the main */
 +int main(int argc, char **argv)
 +{
 +    int flags;
 +    VideoState *is;
 +
 +    init_dynload();
 +
 +    av_log_set_flags(AV_LOG_SKIP_REPEATED);
 +    parse_loglevel(argc, argv, options);
 +
 +    /* register all codecs, demux and protocols */
 +#if CONFIG_AVDEVICE
 +    avdevice_register_all();
 +#endif
 +#if CONFIG_AVFILTER
 +    avfilter_register_all();
 +#endif
 +    av_register_all();
 +    avformat_network_init();
 +
 +    init_opts();
 +
 +    signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).    */
 +    signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
 +
 +    show_banner(argc, argv, options);
 +
 +    parse_options(NULL, argc, argv, options, opt_input_file);
 +
 +    if (!input_filename) {
 +        show_usage();
 +        av_log(NULL, AV_LOG_FATAL, "An input file must be specified\n");
 +        av_log(NULL, AV_LOG_FATAL,
 +               "Use -h to get full help or, even better, run 'man %s'\n", program_name);
 +        exit(1);
 +    }
 +
 +    if (display_disable) {
 +        video_disable = 1;
 +    }
 +    flags = SDL_INIT_VIDEO | SDL_INIT_AUDIO | SDL_INIT_TIMER;
 +    if (audio_disable)
 +        flags &= ~SDL_INIT_AUDIO;
 +    else {
 +        /* Try to work around an occasional ALSA buffer underflow issue when the
 +         * period size is NPOT due to ALSA resampling by forcing the buffer size. */
 +        if (!SDL_getenv("SDL_AUDIO_ALSA_SET_BUFFER_SIZE"))
 +            SDL_setenv("SDL_AUDIO_ALSA_SET_BUFFER_SIZE","1", 1);
 +    }
 +    if (display_disable)
 +        flags &= ~SDL_INIT_VIDEO;
 +    if (SDL_Init (flags)) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not initialize SDL - %s\n", SDL_GetError());
 +        av_log(NULL, AV_LOG_FATAL, "(Did you set the DISPLAY variable?)\n");
 +        exit(1);
 +    }
 +
 +    SDL_EventState(SDL_SYSWMEVENT, SDL_IGNORE);
 +    SDL_EventState(SDL_USEREVENT, SDL_IGNORE);
 +
 +    if (av_lockmgr_register(lockmgr)) {
 +        av_log(NULL, AV_LOG_FATAL, "Could not initialize lock manager!\n");
 +        do_exit(NULL);
 +    }
 +
 +    av_init_packet(&flush_pkt);
 +    flush_pkt.data = (uint8_t *)&flush_pkt;
 +
 +    is = stream_open(input_filename, file_iformat);
 +    if (!is) {
 +        av_log(NULL, AV_LOG_FATAL, "Failed to initialize VideoState!\n");
 +        do_exit(NULL);
 +    }
 +
 +    event_loop(is);
 +
 +    /* never returns */
 +
 +    return 0;
 +}
diff --cc ffprobe.c
index ce964e0,0000000..dd4358d
mode 100644,000000..100644
--- /dev/null
+++ b/ffprobe.c
@@@ -1,3593 -1,0 +1,3593 @@@
- #include "cmdutils_common_opts.h"
 +/*
 + * Copyright (c) 2007-2010 Stefano Sabatini
 + *
 + * This file is part of FFmpeg.
 + *
 + * FFmpeg is free software; you can redistribute it and/or
 + * modify it under the terms of the GNU Lesser General Public
 + * License as published by the Free Software Foundation; either
 + * version 2.1 of the License, or (at your option) any later version.
 + *
 + * FFmpeg is distributed in the hope that it will be useful,
 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 + * Lesser General Public License for more details.
 + *
 + * You should have received a copy of the GNU Lesser General Public
 + * License along with FFmpeg; if not, write to the Free Software
 + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 + */
 +
 +/**
 + * @file
 + * simple media prober based on the FFmpeg libraries
 + */
 +
 +#include "config.h"
 +#include "libavutil/ffversion.h"
 +
 +#include <string.h>
 +
 +#include "libavformat/avformat.h"
 +#include "libavcodec/avcodec.h"
 +#include "libavutil/avassert.h"
 +#include "libavutil/avstring.h"
 +#include "libavutil/bprint.h"
 +#include "libavutil/display.h"
 +#include "libavutil/hash.h"
 +#include "libavutil/opt.h"
 +#include "libavutil/pixdesc.h"
 +#include "libavutil/spherical.h"
 +#include "libavutil/stereo3d.h"
 +#include "libavutil/dict.h"
 +#include "libavutil/intreadwrite.h"
 +#include "libavutil/libm.h"
 +#include "libavutil/parseutils.h"
 +#include "libavutil/timecode.h"
 +#include "libavutil/timestamp.h"
 +#include "libavdevice/avdevice.h"
 +#include "libswscale/swscale.h"
 +#include "libswresample/swresample.h"
 +#include "libpostproc/postprocess.h"
 +#include "cmdutils.h"
 +
 +#include "libavutil/thread.h"
 +
 +#if !HAVE_THREADS
 +#  ifdef pthread_mutex_lock
 +#    undef pthread_mutex_lock
 +#  endif
 +#  define pthread_mutex_lock(a)
 +#  ifdef pthread_mutex_unlock
 +#    undef pthread_mutex_unlock
 +#  endif
 +#  define pthread_mutex_unlock(a)
 +#endif
 +
 +typedef struct InputStream {
 +    AVStream *st;
 +
 +    AVCodecContext *dec_ctx;
 +} InputStream;
 +
 +typedef struct InputFile {
 +    AVFormatContext *fmt_ctx;
 +
 +    InputStream *streams;
 +    int       nb_streams;
 +} InputFile;
 +
 +const char program_name[] = "ffprobe";
 +const int program_birth_year = 2007;
 +
 +static int do_bitexact = 0;
 +static int do_count_frames = 0;
 +static int do_count_packets = 0;
 +static int do_read_frames  = 0;
 +static int do_read_packets = 0;
 +static int do_show_chapters = 0;
 +static int do_show_error   = 0;
 +static int do_show_format  = 0;
 +static int do_show_frames  = 0;
 +static int do_show_packets = 0;
 +static int do_show_programs = 0;
 +static int do_show_streams = 0;
 +static int do_show_stream_disposition = 0;
 +static int do_show_data    = 0;
 +static int do_show_program_version  = 0;
 +static int do_show_library_versions = 0;
 +static int do_show_pixel_formats = 0;
 +static int do_show_pixel_format_flags = 0;
 +static int do_show_pixel_format_components = 0;
 +static int do_show_log = 0;
 +
 +static int do_show_chapter_tags = 0;
 +static int do_show_format_tags = 0;
 +static int do_show_frame_tags = 0;
 +static int do_show_program_tags = 0;
 +static int do_show_stream_tags = 0;
 +static int do_show_packet_tags = 0;
 +
 +static int show_value_unit              = 0;
 +static int use_value_prefix             = 0;
 +static int use_byte_value_binary_prefix = 0;
 +static int use_value_sexagesimal_format = 0;
 +static int show_private_data            = 1;
 +
 +static char *print_format;
 +static char *stream_specifier;
 +static char *show_data_hash;
 +
 +typedef struct ReadInterval {
 +    int id;             ///< identifier
 +    int64_t start, end; ///< start, end in second/AV_TIME_BASE units
 +    int has_start, has_end;
 +    int start_is_offset, end_is_offset;
 +    int duration_frames;
 +} ReadInterval;
 +
 +static ReadInterval *read_intervals;
 +static int read_intervals_nb = 0;
 +
 +/* section structure definition */
 +
 +#define SECTION_MAX_NB_CHILDREN 10
 +
 +struct section {
 +    int id;             ///< unique id identifying a section
 +    const char *name;
 +
 +#define SECTION_FLAG_IS_WRAPPER      1 ///< the section only contains other sections, but has no data at its own level
 +#define SECTION_FLAG_IS_ARRAY        2 ///< the section contains an array of elements of the same type
 +#define SECTION_FLAG_HAS_VARIABLE_FIELDS 4 ///< the section may contain a variable number of fields with variable keys.
 +                                           ///  For these sections the element_name field is mandatory.
 +    int flags;
 +    int children_ids[SECTION_MAX_NB_CHILDREN+1]; ///< list of children section IDS, terminated by -1
 +    const char *element_name; ///< name of the contained element, if provided
 +    const char *unique_name;  ///< unique section name, in case the name is ambiguous
 +    AVDictionary *entries_to_show;
 +    int show_all_entries;
 +};
 +
 +typedef enum {
 +    SECTION_ID_NONE = -1,
 +    SECTION_ID_CHAPTER,
 +    SECTION_ID_CHAPTER_TAGS,
 +    SECTION_ID_CHAPTERS,
 +    SECTION_ID_ERROR,
 +    SECTION_ID_FORMAT,
 +    SECTION_ID_FORMAT_TAGS,
 +    SECTION_ID_FRAME,
 +    SECTION_ID_FRAMES,
 +    SECTION_ID_FRAME_TAGS,
 +    SECTION_ID_FRAME_SIDE_DATA_LIST,
 +    SECTION_ID_FRAME_SIDE_DATA,
 +    SECTION_ID_FRAME_LOG,
 +    SECTION_ID_FRAME_LOGS,
 +    SECTION_ID_LIBRARY_VERSION,
 +    SECTION_ID_LIBRARY_VERSIONS,
 +    SECTION_ID_PACKET,
 +    SECTION_ID_PACKET_TAGS,
 +    SECTION_ID_PACKETS,
 +    SECTION_ID_PACKETS_AND_FRAMES,
 +    SECTION_ID_PACKET_SIDE_DATA_LIST,
 +    SECTION_ID_PACKET_SIDE_DATA,
 +    SECTION_ID_PIXEL_FORMAT,
 +    SECTION_ID_PIXEL_FORMAT_FLAGS,
 +    SECTION_ID_PIXEL_FORMAT_COMPONENT,
 +    SECTION_ID_PIXEL_FORMAT_COMPONENTS,
 +    SECTION_ID_PIXEL_FORMATS,
 +    SECTION_ID_PROGRAM_STREAM_DISPOSITION,
 +    SECTION_ID_PROGRAM_STREAM_TAGS,
 +    SECTION_ID_PROGRAM,
 +    SECTION_ID_PROGRAM_STREAMS,
 +    SECTION_ID_PROGRAM_STREAM,
 +    SECTION_ID_PROGRAM_TAGS,
 +    SECTION_ID_PROGRAM_VERSION,
 +    SECTION_ID_PROGRAMS,
 +    SECTION_ID_ROOT,
 +    SECTION_ID_STREAM,
 +    SECTION_ID_STREAM_DISPOSITION,
 +    SECTION_ID_STREAMS,
 +    SECTION_ID_STREAM_TAGS,
 +    SECTION_ID_STREAM_SIDE_DATA_LIST,
 +    SECTION_ID_STREAM_SIDE_DATA,
 +    SECTION_ID_SUBTITLE,
 +} SectionID;
 +
 +static struct section sections[] = {
 +    [SECTION_ID_CHAPTERS] =           { SECTION_ID_CHAPTERS, "chapters", SECTION_FLAG_IS_ARRAY, { SECTION_ID_CHAPTER, -1 } },
 +    [SECTION_ID_CHAPTER] =            { SECTION_ID_CHAPTER, "chapter", 0, { SECTION_ID_CHAPTER_TAGS, -1 } },
 +    [SECTION_ID_CHAPTER_TAGS] =       { SECTION_ID_CHAPTER_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "chapter_tags" },
 +    [SECTION_ID_ERROR] =              { SECTION_ID_ERROR, "error", 0, { -1 } },
 +    [SECTION_ID_FORMAT] =             { SECTION_ID_FORMAT, "format", 0, { SECTION_ID_FORMAT_TAGS, -1 } },
 +    [SECTION_ID_FORMAT_TAGS] =        { SECTION_ID_FORMAT_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "format_tags" },
 +    [SECTION_ID_FRAMES] =             { SECTION_ID_FRAMES, "frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME, SECTION_ID_SUBTITLE, -1 } },
 +    [SECTION_ID_FRAME] =              { SECTION_ID_FRAME, "frame", 0, { SECTION_ID_FRAME_TAGS, SECTION_ID_FRAME_SIDE_DATA_LIST, SECTION_ID_FRAME_LOGS, -1 } },
 +    [SECTION_ID_FRAME_TAGS] =         { SECTION_ID_FRAME_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "frame_tags" },
 +    [SECTION_ID_FRAME_SIDE_DATA_LIST] ={ SECTION_ID_FRAME_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME_SIDE_DATA, -1 }, .element_name = "side_data", .unique_name = "frame_side_data_list" },
 +    [SECTION_ID_FRAME_SIDE_DATA] =     { SECTION_ID_FRAME_SIDE_DATA, "side_data", 0, { -1 } },
 +    [SECTION_ID_FRAME_LOGS] =         { SECTION_ID_FRAME_LOGS, "logs", SECTION_FLAG_IS_ARRAY, { SECTION_ID_FRAME_LOG, -1 } },
 +    [SECTION_ID_FRAME_LOG] =          { SECTION_ID_FRAME_LOG, "log", 0, { -1 },  },
 +    [SECTION_ID_LIBRARY_VERSIONS] =   { SECTION_ID_LIBRARY_VERSIONS, "library_versions", SECTION_FLAG_IS_ARRAY, { SECTION_ID_LIBRARY_VERSION, -1 } },
 +    [SECTION_ID_LIBRARY_VERSION] =    { SECTION_ID_LIBRARY_VERSION, "library_version", 0, { -1 } },
 +    [SECTION_ID_PACKETS] =            { SECTION_ID_PACKETS, "packets", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} },
 +    [SECTION_ID_PACKETS_AND_FRAMES] = { SECTION_ID_PACKETS_AND_FRAMES, "packets_and_frames", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET, -1} },
 +    [SECTION_ID_PACKET] =             { SECTION_ID_PACKET, "packet", 0, { SECTION_ID_PACKET_TAGS, SECTION_ID_PACKET_SIDE_DATA_LIST, -1 } },
 +    [SECTION_ID_PACKET_TAGS] =        { SECTION_ID_PACKET_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "packet_tags" },
 +    [SECTION_ID_PACKET_SIDE_DATA_LIST] ={ SECTION_ID_PACKET_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PACKET_SIDE_DATA, -1 }, .element_name = "side_data", .unique_name = "packet_side_data_list" },
 +    [SECTION_ID_PACKET_SIDE_DATA] =     { SECTION_ID_PACKET_SIDE_DATA, "side_data", 0, { -1 } },
 +    [SECTION_ID_PIXEL_FORMATS] =      { SECTION_ID_PIXEL_FORMATS, "pixel_formats", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PIXEL_FORMAT, -1 } },
 +    [SECTION_ID_PIXEL_FORMAT] =       { SECTION_ID_PIXEL_FORMAT, "pixel_format", 0, { SECTION_ID_PIXEL_FORMAT_FLAGS, SECTION_ID_PIXEL_FORMAT_COMPONENTS, -1 } },
 +    [SECTION_ID_PIXEL_FORMAT_FLAGS] = { SECTION_ID_PIXEL_FORMAT_FLAGS, "flags", 0, { -1 }, .unique_name = "pixel_format_flags" },
 +    [SECTION_ID_PIXEL_FORMAT_COMPONENTS] = { SECTION_ID_PIXEL_FORMAT_COMPONENTS, "components", SECTION_FLAG_IS_ARRAY, {SECTION_ID_PIXEL_FORMAT_COMPONENT, -1 }, .unique_name = "pixel_format_components" },
 +    [SECTION_ID_PIXEL_FORMAT_COMPONENT]  = { SECTION_ID_PIXEL_FORMAT_COMPONENT, "component", 0, { -1 } },
 +    [SECTION_ID_PROGRAM_STREAM_DISPOSITION] = { SECTION_ID_PROGRAM_STREAM_DISPOSITION, "disposition", 0, { -1 }, .unique_name = "program_stream_disposition" },
 +    [SECTION_ID_PROGRAM_STREAM_TAGS] =        { SECTION_ID_PROGRAM_STREAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "program_stream_tags" },
 +    [SECTION_ID_PROGRAM] =                    { SECTION_ID_PROGRAM, "program", 0, { SECTION_ID_PROGRAM_TAGS, SECTION_ID_PROGRAM_STREAMS, -1 } },
 +    [SECTION_ID_PROGRAM_STREAMS] =            { SECTION_ID_PROGRAM_STREAMS, "streams", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PROGRAM_STREAM, -1 }, .unique_name = "program_streams" },
 +    [SECTION_ID_PROGRAM_STREAM] =             { SECTION_ID_PROGRAM_STREAM, "stream", 0, { SECTION_ID_PROGRAM_STREAM_DISPOSITION, SECTION_ID_PROGRAM_STREAM_TAGS, -1 }, .unique_name = "program_stream" },
 +    [SECTION_ID_PROGRAM_TAGS] =               { SECTION_ID_PROGRAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "program_tags" },
 +    [SECTION_ID_PROGRAM_VERSION] =    { SECTION_ID_PROGRAM_VERSION, "program_version", 0, { -1 } },
 +    [SECTION_ID_PROGRAMS] =                   { SECTION_ID_PROGRAMS, "programs", SECTION_FLAG_IS_ARRAY, { SECTION_ID_PROGRAM, -1 } },
 +    [SECTION_ID_ROOT] =               { SECTION_ID_ROOT, "root", SECTION_FLAG_IS_WRAPPER,
 +                                        { SECTION_ID_CHAPTERS, SECTION_ID_FORMAT, SECTION_ID_FRAMES, SECTION_ID_PROGRAMS, SECTION_ID_STREAMS,
 +                                          SECTION_ID_PACKETS, SECTION_ID_ERROR, SECTION_ID_PROGRAM_VERSION, SECTION_ID_LIBRARY_VERSIONS,
 +                                          SECTION_ID_PIXEL_FORMATS, -1} },
 +    [SECTION_ID_STREAMS] =            { SECTION_ID_STREAMS, "streams", SECTION_FLAG_IS_ARRAY, { SECTION_ID_STREAM, -1 } },
 +    [SECTION_ID_STREAM] =             { SECTION_ID_STREAM, "stream", 0, { SECTION_ID_STREAM_DISPOSITION, SECTION_ID_STREAM_TAGS, SECTION_ID_STREAM_SIDE_DATA_LIST, -1 } },
 +    [SECTION_ID_STREAM_DISPOSITION] = { SECTION_ID_STREAM_DISPOSITION, "disposition", 0, { -1 }, .unique_name = "stream_disposition" },
 +    [SECTION_ID_STREAM_TAGS] =        { SECTION_ID_STREAM_TAGS, "tags", SECTION_FLAG_HAS_VARIABLE_FIELDS, { -1 }, .element_name = "tag", .unique_name = "stream_tags" },
 +    [SECTION_ID_STREAM_SIDE_DATA_LIST] ={ SECTION_ID_STREAM_SIDE_DATA_LIST, "side_data_list", SECTION_FLAG_IS_ARRAY, { SECTION_ID_STREAM_SIDE_DATA, -1 }, .element_name = "side_data", .unique_name = "stream_side_data_list" },
 +    [SECTION_ID_STREAM_SIDE_DATA] =     { SECTION_ID_STREAM_SIDE_DATA, "side_data", 0, { -1 } },
 +    [SECTION_ID_SUBTITLE] =           { SECTION_ID_SUBTITLE, "subtitle", 0, { -1 } },
 +};
 +
 +static const OptionDef *options;
 +
 +/* FFprobe context */
 +static const char *input_filename;
 +static AVInputFormat *iformat = NULL;
 +
 +static struct AVHashContext *hash;
 +
 +static const struct {
 +    double bin_val;
 +    double dec_val;
 +    const char *bin_str;
 +    const char *dec_str;
 +} si_prefixes[] = {
 +    { 1.0, 1.0, "", "" },
 +    { 1.024e3, 1e3, "Ki", "K" },
 +    { 1.048576e6, 1e6, "Mi", "M" },
 +    { 1.073741824e9, 1e9, "Gi", "G" },
 +    { 1.099511627776e12, 1e12, "Ti", "T" },
 +    { 1.125899906842624e15, 1e15, "Pi", "P" },
 +};
 +
 +static const char unit_second_str[]         = "s"    ;
 +static const char unit_hertz_str[]          = "Hz"   ;
 +static const char unit_byte_str[]           = "byte" ;
 +static const char unit_bit_per_second_str[] = "bit/s";
 +
 +static int nb_streams;
 +static uint64_t *nb_streams_packets;
 +static uint64_t *nb_streams_frames;
 +static int *selected_streams;
 +
 +#if HAVE_THREADS
 +pthread_mutex_t log_mutex;
 +#endif
 +typedef struct LogBuffer {
 +    char *context_name;
 +    int log_level;
 +    char *log_message;
 +    AVClassCategory category;
 +    char *parent_name;
 +    AVClassCategory parent_category;
 +}LogBuffer;
 +
 +static LogBuffer *log_buffer;
 +static int log_buffer_size;
 +
 +static void log_callback(void *ptr, int level, const char *fmt, va_list vl)
 +{
 +    AVClass* avc = ptr ? *(AVClass **) ptr : NULL;
 +    va_list vl2;
 +    char line[1024];
 +    static int print_prefix = 1;
 +    void *new_log_buffer;
 +
 +    va_copy(vl2, vl);
 +    av_log_default_callback(ptr, level, fmt, vl);
 +    av_log_format_line(ptr, level, fmt, vl2, line, sizeof(line), &print_prefix);
 +    va_end(vl2);
 +
 +#if HAVE_THREADS
 +    pthread_mutex_lock(&log_mutex);
 +
 +    new_log_buffer = av_realloc_array(log_buffer, log_buffer_size + 1, sizeof(*log_buffer));
 +    if (new_log_buffer) {
 +        char *msg;
 +        int i;
 +
 +        log_buffer = new_log_buffer;
 +        memset(&log_buffer[log_buffer_size], 0, sizeof(log_buffer[log_buffer_size]));
 +        log_buffer[log_buffer_size].context_name= avc ? av_strdup(avc->item_name(ptr)) : NULL;
 +        if (avc) {
 +            if (avc->get_category) log_buffer[log_buffer_size].category = avc->get_category(ptr);
 +            else                   log_buffer[log_buffer_size].category = avc->category;
 +        }
 +        log_buffer[log_buffer_size].log_level   = level;
 +        msg = log_buffer[log_buffer_size].log_message = av_strdup(line);
 +        for (i=strlen(msg) - 1; i>=0 && msg[i] == '\n'; i--) {
 +            msg[i] = 0;
 +        }
 +        if (avc && avc->parent_log_context_offset) {
 +            AVClass** parent = *(AVClass ***) (((uint8_t *) ptr) +
 +                                   avc->parent_log_context_offset);
 +            if (parent && *parent) {
 +                log_buffer[log_buffer_size].parent_name = av_strdup((*parent)->item_name(parent));
 +                log_buffer[log_buffer_size].parent_category =
 +                    (*parent)->get_category ? (*parent)->get_category(parent) :(*parent)->category;
 +            }
 +        }
 +        log_buffer_size ++;
 +    }
 +
 +    pthread_mutex_unlock(&log_mutex);
 +#endif
 +}
 +
 +static void ffprobe_cleanup(int ret)
 +{
 +    int i;
 +    for (i = 0; i < FF_ARRAY_ELEMS(sections); i++)
 +        av_dict_free(&(sections[i].entries_to_show));
 +
 +#if HAVE_THREADS
 +    pthread_mutex_destroy(&log_mutex);
 +#endif
 +}
 +
 +struct unit_value {
 +    union { double d; long long int i; } val;
 +    const char *unit;
 +};
 +
 +static char *value_string(char *buf, int buf_size, struct unit_value uv)
 +{
 +    double vald;
 +    long long int vali;
 +    int show_float = 0;
 +
 +    if (uv.unit == unit_second_str) {
 +        vald = uv.val.d;
 +        show_float = 1;
 +    } else {
&nbs