Merge commit 'aa499568afc01d59215eef7e5b14b949a9671afc'
[ffmpeg.git] / ffmpeg.c
similarity index 50%
rename from avconv.c
rename to ffmpeg.c
index 866b90c..25001f5 100644 (file)
--- a/avconv.c
+++ b/ffmpeg.c
@@ -1,38 +1,49 @@
 /*
- * avconv main
- * Copyright (c) 2000-2011 The libav developers.
+ * Copyright (c) 2000-2003 Fabrice Bellard
  *
- * This file is part of Libav.
+ * This file is part of FFmpeg.
  *
- * Libav is free software; you can redistribute it and/or
+ * 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.
  *
- * Libav is distributed in the hope that it will be useful,
+ * 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 Libav; if not, write to the Free Software
+ * License along with FFmpeg; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  */
 
+/**
+ * @file
+ * multimedia converter based on the FFmpeg libraries
+ */
+
 #include "config.h"
 #include <ctype.h>
 #include <string.h>
 #include <math.h>
 #include <stdlib.h>
 #include <errno.h>
-#include <signal.h>
 #include <limits.h>
 #include <stdint.h>
 
+#if HAVE_ISATTY
+#if HAVE_IO_H
+#include <io.h>
+#endif
+#if HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#endif
+
 #include "libavformat/avformat.h"
 #include "libavdevice/avdevice.h"
-#include "libswscale/swscale.h"
-#include "libavresample/avresample.h"
+#include "libswresample/swresample.h"
 #include "libavutil/opt.h"
 #include "libavutil/channel_layout.h"
 #include "libavutil/parseutils.h"
 #include "libavutil/avstring.h"
 #include "libavutil/libm.h"
 #include "libavutil/imgutils.h"
+#include "libavutil/timestamp.h"
+#include "libavutil/bprint.h"
 #include "libavutil/time.h"
 #include "libavformat/os_support.h"
 
+#include "libavformat/ffm.h" // not public API
+
+# include "libavfilter/avcodec.h"
 # include "libavfilter/avfilter.h"
 # include "libavfilter/buffersrc.h"
 # include "libavfilter/buffersink.h"
 #include <sys/select.h>
 #endif
 
+#if HAVE_TERMIOS_H
+#include <fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+#include <termios.h>
+#elif HAVE_KBHIT
+#include <conio.h>
+#endif
+
 #if HAVE_PTHREADS
 #include <pthread.h>
 #endif
 
 #include <time.h>
 
-#include "avconv.h"
+#include "ffmpeg.h"
 #include "cmdutils.h"
 
 #include "libavutil/avassert.h"
 
-const char program_name[] = "avconv";
+const char program_name[] = "ffmpeg";
 const int program_birth_year = 2000;
 
 static FILE *vstats_file;
 
+const char *const forced_keyframes_const_names[] = {
+    "n",
+    "n_forced",
+    "prev_forced_n",
+    "prev_forced_t",
+    "t",
+    NULL
+};
+
+static void do_video_stats(OutputStream *ost, int frame_size);
+static int64_t getutime(void);
+static int64_t getmaxrss(void);
+
+static int run_as_daemon  = 0;
+static int nb_frames_dup = 0;
 static int nb_frames_drop = 0;
+static int64_t decode_error_stat[2];
 
+static int current_time;
+AVIOContext *progress_avio = NULL;
 
+static uint8_t *subtitle_out;
 
 #if HAVE_PTHREADS
 /* signal to input threads that they should exit; set by the main thread */
 static int transcoding_finished;
 #endif
 
-#define DEFAULT_PASS_LOGFILENAME_PREFIX "av2pass"
+#define DEFAULT_PASS_LOGFILENAME_PREFIX "ffmpeg2pass"
 
 InputStream **input_streams = NULL;
 int        nb_input_streams = 0;
@@ -108,24 +152,211 @@ int         nb_output_files   = 0;
 FilterGraph **filtergraphs;
 int        nb_filtergraphs;
 
-static void term_exit(void)
+#if HAVE_TERMIOS_H
+
+/* init terminal so that we can grab keys */
+static struct termios oldtty;
+static int restore_tty;
+#endif
+
+static void free_input_threads(void);
+
+
+/* sub2video hack:
+   Convert subtitles to video with alpha to insert them in filter graphs.
+   This is a temporary solution until libavfilter gets real subtitles support.
+ */
+
+static int sub2video_get_blank_frame(InputStream *ist)
+{
+    int ret;
+    AVFrame *frame = ist->sub2video.frame;
+
+    av_frame_unref(frame);
+    ist->sub2video.frame->width  = ist->sub2video.w;
+    ist->sub2video.frame->height = ist->sub2video.h;
+    ist->sub2video.frame->format = AV_PIX_FMT_RGB32;
+    if ((ret = av_frame_get_buffer(frame, 32)) < 0)
+        return ret;
+    memset(frame->data[0], 0, frame->height * frame->linesize[0]);
+    return 0;
+}
+
+static void sub2video_copy_rect(uint8_t *dst, int dst_linesize, int w, int h,
+                                AVSubtitleRect *r)
+{
+    uint32_t *pal, *dst2;
+    uint8_t *src, *src2;
+    int x, y;
+
+    if (r->type != SUBTITLE_BITMAP) {
+        av_log(NULL, AV_LOG_WARNING, "sub2video: non-bitmap subtitle\n");
+        return;
+    }
+    if (r->x < 0 || r->x + r->w > w || r->y < 0 || r->y + r->h > h) {
+        av_log(NULL, AV_LOG_WARNING, "sub2video: rectangle overflowing\n");
+        return;
+    }
+
+    dst += r->y * dst_linesize + r->x * 4;
+    src = r->pict.data[0];
+    pal = (uint32_t *)r->pict.data[1];
+    for (y = 0; y < r->h; y++) {
+        dst2 = (uint32_t *)dst;
+        src2 = src;
+        for (x = 0; x < r->w; x++)
+            *(dst2++) = pal[*(src2++)];
+        dst += dst_linesize;
+        src += r->pict.linesize[0];
+    }
+}
+
+static void sub2video_push_ref(InputStream *ist, int64_t pts)
+{
+    AVFrame *frame = ist->sub2video.frame;
+    int i;
+
+    av_assert1(frame->data[0]);
+    ist->sub2video.last_pts = frame->pts = pts;
+    for (i = 0; i < ist->nb_filters; i++)
+        av_buffersrc_add_frame_flags(ist->filters[i]->filter, frame,
+                                     AV_BUFFERSRC_FLAG_KEEP_REF |
+                                     AV_BUFFERSRC_FLAG_PUSH);
+}
+
+static void sub2video_update(InputStream *ist, AVSubtitle *sub)
 {
-    av_log(NULL, AV_LOG_QUIET, "");
+    int w = ist->sub2video.w, h = ist->sub2video.h;
+    AVFrame *frame = ist->sub2video.frame;
+    int8_t *dst;
+    int     dst_linesize;
+    int num_rects, i;
+    int64_t pts, end_pts;
+
+    if (!frame)
+        return;
+    if (sub) {
+        pts       = av_rescale_q(sub->pts + sub->start_display_time * 1000,
+                                 AV_TIME_BASE_Q, ist->st->time_base);
+        end_pts   = av_rescale_q(sub->pts + sub->end_display_time   * 1000,
+                                 AV_TIME_BASE_Q, ist->st->time_base);
+        num_rects = sub->num_rects;
+    } else {
+        pts       = ist->sub2video.end_pts;
+        end_pts   = INT64_MAX;
+        num_rects = 0;
+    }
+    if (sub2video_get_blank_frame(ist) < 0) {
+        av_log(ist->st->codec, AV_LOG_ERROR,
+               "Impossible to get a blank canvas.\n");
+        return;
+    }
+    dst          = frame->data    [0];
+    dst_linesize = frame->linesize[0];
+    for (i = 0; i < num_rects; i++)
+        sub2video_copy_rect(dst, dst_linesize, w, h, sub->rects[i]);
+    sub2video_push_ref(ist, pts);
+    ist->sub2video.end_pts = end_pts;
+}
+
+static void sub2video_heartbeat(InputStream *ist, int64_t pts)
+{
+    InputFile *infile = input_files[ist->file_index];
+    int i, j, nb_reqs;
+    int64_t pts2;
+
+    /* When a frame is read from a file, examine all sub2video streams in
+       the same file and send the sub2video frame again. Otherwise, decoded
+       video frames could be accumulating in the filter graph while a filter
+       (possibly overlay) is desperately waiting for a subtitle frame. */
+    for (i = 0; i < infile->nb_streams; i++) {
+        InputStream *ist2 = input_streams[infile->ist_index + i];
+        if (!ist2->sub2video.frame)
+            continue;
+        /* subtitles seem to be usually muxed ahead of other streams;
+           if not, substracting a larger time here is necessary */
+        pts2 = av_rescale_q(pts, ist->st->time_base, ist2->st->time_base) - 1;
+        /* do not send the heartbeat frame if the subtitle is already ahead */
+        if (pts2 <= ist2->sub2video.last_pts)
+            continue;
+        if (pts2 >= ist2->sub2video.end_pts || !ist2->sub2video.frame->data[0])
+            sub2video_update(ist2, NULL);
+        for (j = 0, nb_reqs = 0; j < ist2->nb_filters; j++)
+            nb_reqs += av_buffersrc_get_nb_failed_requests(ist2->filters[j]->filter);
+        if (nb_reqs)
+            sub2video_push_ref(ist2, pts2);
+    }
+}
+
+static void sub2video_flush(InputStream *ist)
+{
+    int i;
+
+    if (ist->sub2video.end_pts < INT64_MAX)
+        sub2video_update(ist, NULL);
+    for (i = 0; i < ist->nb_filters; i++)
+        av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
+}
+
+/* end of sub2video hack */
+
+static void term_exit_sigsafe(void)
+{
+#if HAVE_TERMIOS_H
+    if(restore_tty)
+        tcsetattr (0, TCSANOW, &oldtty);
+#endif
+}
+
+void term_exit(void)
+{
+    av_log(NULL, AV_LOG_QUIET, "%s", "");
+    term_exit_sigsafe();
 }
 
 static volatile int received_sigterm = 0;
 static volatile int received_nb_signals = 0;
+static int main_return_code = 0;
 
 static void
 sigterm_handler(int sig)
 {
     received_sigterm = sig;
     received_nb_signals++;
-    term_exit();
+    term_exit_sigsafe();
+    if(received_nb_signals > 3)
+        exit(123);
 }
 
-static void term_init(void)
+void term_init(void)
 {
+#if HAVE_TERMIOS_H
+    if(!run_as_daemon){
+        struct termios tty;
+        int istty = 1;
+#if HAVE_ISATTY
+        istty = isatty(0) && isatty(2);
+#endif
+        if (istty && tcgetattr (0, &tty) == 0) {
+            oldtty = tty;
+            restore_tty = 1;
+
+            tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP
+                             |INLCR|IGNCR|ICRNL|IXON);
+            tty.c_oflag |= OPOST;
+            tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN);
+            tty.c_cflag &= ~(CSIZE|PARENB);
+            tty.c_cflag |= CS8;
+            tty.c_cc[VMIN] = 1;
+            tty.c_cc[VTIME] = 0;
+
+            tcsetattr (0, TCSANOW, &tty);
+        }
+        signal(SIGQUIT, sigterm_handler); /* Quit (POSIX).  */
+    }
+#endif
+    avformat_network_deinit();
+
     signal(SIGINT , sigterm_handler); /* Interrupt (ANSI).    */
     signal(SIGTERM, sigterm_handler); /* Termination (ANSI).  */
 #ifdef SIGXCPU
@@ -133,6 +364,62 @@ static void term_init(void)
 #endif
 }
 
+/* read a key without blocking */
+static int read_key(void)
+{
+    unsigned char ch;
+#if HAVE_TERMIOS_H
+    int n = 1;
+    struct timeval tv;
+    fd_set rfds;
+
+    FD_ZERO(&rfds);
+    FD_SET(0, &rfds);
+    tv.tv_sec = 0;
+    tv.tv_usec = 0;
+    n = select(1, &rfds, NULL, NULL, &tv);
+    if (n > 0) {
+        n = read(0, &ch, 1);
+        if (n == 1)
+            return ch;
+
+        return n;
+    }
+#elif HAVE_KBHIT
+#    if HAVE_PEEKNAMEDPIPE
+    static int is_pipe;
+    static HANDLE input_handle;
+    DWORD dw, nchars;
+    if(!input_handle){
+        input_handle = GetStdHandle(STD_INPUT_HANDLE);
+        is_pipe = !GetConsoleMode(input_handle, &dw);
+    }
+
+    if (stdin->_cnt > 0) {
+        read(0, &ch, 1);
+        return ch;
+    }
+    if (is_pipe) {
+        /* When running under a GUI, you will end here. */
+        if (!PeekNamedPipe(input_handle, NULL, 0, NULL, &nchars, NULL)) {
+            // input pipe may have been closed by the program that ran ffmpeg
+            return -1;
+        }
+        //Read it
+        if(nchars != 0) {
+            read(0, &ch, 1);
+            return ch;
+        }else{
+            return -1;
+        }
+    }
+#    endif
+    if(kbhit())
+        return(getch());
+#endif
+    return -1;
+}
+
 static int decode_interrupt_cb(void *ctx)
 {
     return received_nb_signals > 1;
@@ -140,10 +427,15 @@ static int decode_interrupt_cb(void *ctx)
 
 const AVIOInterruptCB int_cb = { decode_interrupt_cb, NULL };
 
-static void avconv_cleanup(int ret)
+static void ffmpeg_cleanup(int ret)
 {
     int i, j;
 
+    if (do_benchmark) {
+        int maxrss = getmaxrss() / 1024;
+        printf("bench: maxrss=%ikB\n", maxrss);
+    }
+
     for (i = 0; i < nb_filtergraphs; i++) {
         avfilter_graph_free(&filtergraphs[i]->graph);
         for (j = 0; j < filtergraphs[i]->nb_inputs; j++) {
@@ -161,6 +453,8 @@ static void avconv_cleanup(int ret)
     }
     av_freep(&filtergraphs);
 
+    av_freep(&subtitle_out);
+
     /* close files */
     for (i = 0; i < nb_output_files; i++) {
         AVFormatContext *s = output_files[i]->ctx;
@@ -183,10 +477,14 @@ static void avconv_cleanup(int ret)
         av_parser_close(output_streams[i]->parser);
 
         av_freep(&output_streams[i]->forced_keyframes);
+        av_expr_free(output_streams[i]->forced_keyframes_pexpr);
         av_freep(&output_streams[i]->avfilter);
         av_freep(&output_streams[i]->logfile_prefix);
         av_freep(&output_streams[i]);
     }
+#if HAVE_PTHREADS
+    free_input_threads();
+#endif
     for (i = 0; i < nb_input_files; i++) {
         avformat_close_input(&input_files[i]->ctx);
         av_freep(&input_files[i]);
@@ -195,6 +493,8 @@ static void avconv_cleanup(int ret)
         av_frame_free(&input_streams[i]->decoded_frame);
         av_frame_free(&input_streams[i]->filter_frame);
         av_dict_free(&input_streams[i]->opts);
+        avsubtitle_free(&input_streams[i]->prev_sub.subtitle);
+        av_frame_free(&input_streams[i]->sub2video.frame);
         av_freep(&input_streams[i]->filters);
         av_freep(&input_streams[i]->hwaccel_device);
         av_freep(&input_streams[i]);
@@ -216,8 +516,8 @@ static void avconv_cleanup(int ret)
     if (received_sigterm) {
         av_log(NULL, AV_LOG_INFO, "Received signal %d: terminating.\n",
                (int) received_sigterm);
-        exit (255);
     }
+    term_exit();
 }
 
 void assert_avoptions(AVDictionary *m)
@@ -231,74 +531,32 @@ void assert_avoptions(AVDictionary *m)
 
 static void abort_codec_experimental(AVCodec *c, int encoder)
 {
-    const char *codec_string = encoder ? "encoder" : "decoder";
-    AVCodec *codec;
-    av_log(NULL, AV_LOG_FATAL, "%s '%s' is experimental and might produce bad "
-            "results.\nAdd '-strict experimental' if you want to use it.\n",
-            codec_string, c->name);
-    codec = encoder ? avcodec_find_encoder(c->id) : avcodec_find_decoder(c->id);
-    if (!(codec->capabilities & CODEC_CAP_EXPERIMENTAL))
-        av_log(NULL, AV_LOG_FATAL, "Or use the non experimental %s '%s'.\n",
-               codec_string, codec->name);
     exit_program(1);
 }
 
-/*
- * Update the requested input sample format based on the output sample format.
- * This is currently only used to request float output from decoders which
- * support multiple sample formats, one of which is AV_SAMPLE_FMT_FLT.
- * Ideally this will be removed in the future when decoders do not do format
- * conversion and only output in their native format.
- */
-static void update_sample_fmt(AVCodecContext *dec, AVCodec *dec_codec,
-                              AVCodecContext *enc)
+static void update_benchmark(const char *fmt, ...)
 {
-    /* if sample formats match or a decoder sample format has already been
-       requested, just return */
-    if (enc->sample_fmt == dec->sample_fmt ||
-        dec->request_sample_fmt > AV_SAMPLE_FMT_NONE)
-        return;
-
-    /* if decoder supports more than one output format */
-    if (dec_codec && dec_codec->sample_fmts &&
-        dec_codec->sample_fmts[0] != AV_SAMPLE_FMT_NONE &&
-        dec_codec->sample_fmts[1] != AV_SAMPLE_FMT_NONE) {
-        const enum AVSampleFormat *p;
-        int min_dec = INT_MAX, min_inc = INT_MAX;
-        enum AVSampleFormat dec_fmt = AV_SAMPLE_FMT_NONE;
-        enum AVSampleFormat inc_fmt = AV_SAMPLE_FMT_NONE;
-
-        /* find a matching sample format in the encoder */
-        for (p = dec_codec->sample_fmts; *p != AV_SAMPLE_FMT_NONE; p++) {
-            if (*p == enc->sample_fmt) {
-                dec->request_sample_fmt = *p;
-                return;
-            } else {
-                enum AVSampleFormat dfmt = av_get_packed_sample_fmt(*p);
-                enum AVSampleFormat efmt = av_get_packed_sample_fmt(enc->sample_fmt);
-                int fmt_diff = 32 * abs(dfmt - efmt);
-                if (av_sample_fmt_is_planar(*p) !=
-                    av_sample_fmt_is_planar(enc->sample_fmt))
-                    fmt_diff++;
-                if (dfmt == efmt) {
-                    min_inc = fmt_diff;
-                    inc_fmt = *p;
-                } else if (dfmt > efmt) {
-                    if (fmt_diff < min_inc) {
-                        min_inc = fmt_diff;
-                        inc_fmt = *p;
-                    }
-                } else {
-                    if (fmt_diff < min_dec) {
-                        min_dec = fmt_diff;
-                        dec_fmt = *p;
-                    }
-                }
-            }
+    if (do_benchmark_all) {
+        int64_t t = getutime();
+        va_list va;
+        char buf[1024];
+
+        if (fmt) {
+            va_start(va, fmt);
+            vsnprintf(buf, sizeof(buf), fmt, va);
+            va_end(va);
+            printf("bench: %8"PRIu64" %s \n", t - current_time, buf);
         }
+        current_time = t;
+    }
+}
 
-        /* if none match, provide the one that matches quality closest */
-        dec->request_sample_fmt = min_inc != INT_MAX ? inc_fmt : dec_fmt;
+static void close_all_output_streams(OutputStream *ost, OSTFinished this_stream, OSTFinished others)
+{
+    int i;
+    for (i = 0; i < nb_output_streams; i++) {
+        OutputStream *ost2 = output_streams[i];
+        ost2->finished |= ost == ost2 ? this_stream : others;
     }
 }
 
@@ -308,6 +566,10 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
     AVCodecContext          *avctx = ost->st->codec;
     int ret;
 
+    if ((avctx->codec_type == AVMEDIA_TYPE_VIDEO && video_sync_method == VSYNC_DROP) ||
+        (avctx->codec_type == AVMEDIA_TYPE_AUDIO && audio_sync_method < 0))
+        pkt->pts = pkt->dts = AV_NOPTS_VALUE;
+
     /*
      * Audio encoders may split the packets --  #frames in != #packets out.
      * But there is no reordering, so we can limit the number of output packets
@@ -329,6 +591,17 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
                                            &new_pkt.data, &new_pkt.size,
                                            pkt->data, pkt->size,
                                            pkt->flags & AV_PKT_FLAG_KEY);
+        if(a == 0 && new_pkt.data != pkt->data && new_pkt.destruct) {
+            uint8_t *t = av_malloc(new_pkt.size + FF_INPUT_BUFFER_PADDING_SIZE); //the new should be a subset of the old so cannot overflow
+            if(t) {
+                memcpy(t, new_pkt.data, new_pkt.size);
+                memset(t + new_pkt.size, 0, FF_INPUT_BUFFER_PADDING_SIZE);
+                new_pkt.data = t;
+                new_pkt.buf = NULL;
+                a = 1;
+            } else
+                a = AVERROR(ENOMEM);
+        }
         if (a > 0) {
             av_free_packet(pkt);
             new_pkt.buf = av_buffer_create(new_pkt.data, new_pkt.size,
@@ -336,7 +609,7 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
             if (!new_pkt.buf)
                 exit_program(1);
         } else if (a < 0) {
-            av_log(NULL, AV_LOG_ERROR, "%s failed for stream %d, codec %s",
+            av_log(NULL, AV_LOG_ERROR, "Failed to open bitstream filter %s for stream %d with codec %s",
                    bsfc->filter->name, pkt->stream_index,
                    avctx->codec ? avctx->codec->name : "copy");
             print_error("", a);
@@ -349,21 +622,26 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
     }
 
     if (!(s->oformat->flags & AVFMT_NOTIMESTAMPS) &&
-        ost->last_mux_dts != AV_NOPTS_VALUE &&
-        pkt->dts < ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT)) {
-        av_log(NULL, AV_LOG_WARNING, "Non-monotonous DTS in output stream "
+        (avctx->codec_type == AVMEDIA_TYPE_AUDIO || avctx->codec_type == AVMEDIA_TYPE_VIDEO) &&
+        pkt->dts != AV_NOPTS_VALUE &&
+        ost->last_mux_dts != AV_NOPTS_VALUE) {
+      int64_t max = ost->last_mux_dts + !(s->oformat->flags & AVFMT_TS_NONSTRICT);
+      if (pkt->dts < max) {
+        int loglevel = max - pkt->dts > 2 || avctx->codec_type == AVMEDIA_TYPE_VIDEO ? AV_LOG_WARNING : AV_LOG_DEBUG;
+        av_log(s, loglevel, "Non-monotonous DTS in output stream "
                "%d:%d; previous: %"PRId64", current: %"PRId64"; ",
                ost->file_index, ost->st->index, ost->last_mux_dts, pkt->dts);
         if (exit_on_error) {
             av_log(NULL, AV_LOG_FATAL, "aborting.\n");
             exit_program(1);
         }
-        av_log(NULL, AV_LOG_WARNING, "changing to %"PRId64". This may result "
+        av_log(s, loglevel, "changing to %"PRId64". This may result "
                "in incorrect timestamps in the output file.\n",
-               ost->last_mux_dts + 1);
-        pkt->dts = ost->last_mux_dts + 1;
-        if (pkt->pts != AV_NOPTS_VALUE)
-            pkt->pts = FFMAX(pkt->pts, pkt->dts);
+               max);
+        if(pkt->pts >= pkt->dts)
+            pkt->pts = FFMAX(pkt->pts, max);
+        pkt->dts = max;
+      }
     }
     ost->last_mux_dts = pkt->dts;
 
@@ -371,10 +649,34 @@ static void write_frame(AVFormatContext *s, AVPacket *pkt, OutputStream *ost)
     ost->packets_written++;
 
     pkt->stream_index = ost->index;
+
+    if (debug_ts) {
+        av_log(NULL, AV_LOG_INFO, "muxer <- type:%s "
+                "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s size:%d\n",
+                av_get_media_type_string(ost->st->codec->codec_type),
+                av_ts2str(pkt->pts), av_ts2timestr(pkt->pts, &ost->st->time_base),
+                av_ts2str(pkt->dts), av_ts2timestr(pkt->dts, &ost->st->time_base),
+                pkt->size
+              );
+    }
+
     ret = av_interleaved_write_frame(s, pkt);
     if (ret < 0) {
         print_error("av_interleaved_write_frame()", ret);
-        exit_program(1);
+        main_return_code = 1;
+        close_all_output_streams(ost, MUXER_FINISHED | ENCODER_FINISHED, ENCODER_FINISHED);
+    }
+    av_free_packet(pkt);
+}
+
+static void close_output_stream(OutputStream *ost)
+{
+    OutputFile *of = output_files[ost->file_index];
+
+    ost->finished |= ENCODER_FINISHED;
+    if (of->shortest) {
+        int64_t end = av_rescale_q(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, AV_TIME_BASE_Q);
+        of->recording_time = FFMIN(of->recording_time, end);
     }
 }
 
@@ -385,7 +687,7 @@ static int check_recording_time(OutputStream *ost)
     if (of->recording_time != INT64_MAX &&
         av_compare_ts(ost->sync_opts - ost->first_pts, ost->st->codec->time_base, of->recording_time,
                       AV_TIME_BASE_Q) >= 0) {
-        ost->finished = 1;
+        close_output_stream(ost);
         return 0;
     }
     return 1;
@@ -402,17 +704,29 @@ static void do_audio_out(AVFormatContext *s, OutputStream *ost,
     pkt.data = NULL;
     pkt.size = 0;
 
+    if (!check_recording_time(ost))
+        return;
+
     if (frame->pts == AV_NOPTS_VALUE || audio_sync_method < 0)
         frame->pts = ost->sync_opts;
     ost->sync_opts = frame->pts + frame->nb_samples;
-
     ost->samples_encoded += frame->nb_samples;
     ost->frames_encoded++;
 
+    av_assert0(pkt.size || !pkt.data);
+    update_benchmark(NULL);
+    if (debug_ts) {
+        av_log(NULL, AV_LOG_INFO, "encoder <- type:audio "
+               "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
+               av_ts2str(frame->pts), av_ts2timestr(frame->pts, &enc->time_base),
+               enc->time_base.num, enc->time_base.den);
+    }
+
     if (avcodec_encode_audio2(enc, &pkt, frame, &got_packet) < 0) {
-        av_log(NULL, AV_LOG_FATAL, "Audio encoding failed\n");
+        av_log(NULL, AV_LOG_FATAL, "Audio encoding failed (avcodec_encode_audio2)\n");
         exit_program(1);
     }
+    update_benchmark("encode_audio %d.%d", ost->file_index, ost->index);
 
     if (got_packet) {
         if (pkt.pts != AV_NOPTS_VALUE)
@@ -422,6 +736,13 @@ static void do_audio_out(AVFormatContext *s, OutputStream *ost,
         if (pkt.duration > 0)
             pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
 
+        if (debug_ts) {
+            av_log(NULL, AV_LOG_INFO, "encoder -> type:audio "
+                   "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
+                   av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
+                   av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
+        }
+
         write_frame(s, &pkt, ost);
     }
 }
@@ -429,16 +750,15 @@ static void do_audio_out(AVFormatContext *s, OutputStream *ost,
 static void do_subtitle_out(AVFormatContext *s,
                             OutputStream *ost,
                             InputStream *ist,
-                            AVSubtitle *sub,
-                            int64_t pts)
+                            AVSubtitle *sub)
 {
-    static uint8_t *subtitle_out = NULL;
     int subtitle_out_max_size = 1024 * 1024;
     int subtitle_out_size, nb, i;
     AVCodecContext *enc;
     AVPacket pkt;
+    int64_t pts;
 
-    if (pts == AV_NOPTS_VALUE) {
+    if (sub->pts == AV_NOPTS_VALUE) {
         av_log(NULL, AV_LOG_ERROR, "Subtitle packets must have a pts\n");
         if (exit_on_error)
             exit_program(1);
@@ -459,16 +779,22 @@ static void do_subtitle_out(AVFormatContext *s,
     else
         nb = 1;
 
+    /* shift timestamp to honor -ss and make check_recording_time() work with -t */
+    pts = sub->pts;
+    if (output_files[ost->file_index]->start_time != AV_NOPTS_VALUE)
+        pts -= output_files[ost->file_index]->start_time;
     for (i = 0; i < nb; i++) {
-        ost->sync_opts = av_rescale_q(pts, ist->st->time_base, enc->time_base);
+        ost->sync_opts = av_rescale_q(pts, AV_TIME_BASE_Q, enc->time_base);
         if (!check_recording_time(ost))
             return;
 
-        sub->pts = av_rescale_q(pts, ist->st->time_base, AV_TIME_BASE_Q);
+        sub->pts = pts;
         // start_display_time is required to be 0
         sub->pts               += av_rescale_q(sub->start_display_time, (AVRational){ 1, 1000 }, AV_TIME_BASE_Q);
         sub->end_display_time  -= sub->start_display_time;
         sub->start_display_time = 0;
+        if (i == 1)
+            sub->num_rects = 0;
 
         ost->frames_encoded++;
 
@@ -483,6 +809,7 @@ static void do_subtitle_out(AVFormatContext *s,
         pkt.data = subtitle_out;
         pkt.size = subtitle_out_size;
         pkt.pts  = av_rescale_q(sub->pts, AV_TIME_BASE_Q, ost->st->time_base);
+        pkt.duration = av_rescale_q(sub->end_display_time, (AVRational){ 1, 1000 }, ost->st->time_base);
         if (enc->codec_id == AV_CODEC_ID_DVB_SUBTITLE) {
             /* XXX: the pts correction is handled here. Maybe handling
                it in the codec would be better */
@@ -497,43 +824,104 @@ static void do_subtitle_out(AVFormatContext *s,
 
 static void do_video_out(AVFormatContext *s,
                          OutputStream *ost,
-                         AVFrame *in_picture,
-                         int *frame_size)
+                         AVFrame *in_picture)
 {
     int ret, format_video_sync;
     AVPacket pkt;
     AVCodecContext *enc = ost->st->codec;
+    int nb_frames, i;
+    double sync_ipts, delta;
+    double duration = 0;
+    int frame_size = 0;
+    InputStream *ist = NULL;
 
-    *frame_size = 0;
+    if (ost->source_index >= 0)
+        ist = input_streams[ost->source_index];
+
+    if(ist && ist->st->start_time != AV_NOPTS_VALUE && ist->st->first_dts != AV_NOPTS_VALUE && ost->frame_rate.num)
+        duration = 1/(av_q2d(ost->frame_rate) * av_q2d(enc->time_base));
+
+    sync_ipts = in_picture->pts;
+    delta = sync_ipts - ost->sync_opts + duration;
+
+    /* by default, we output a single frame */
+    nb_frames = 1;
 
     format_video_sync = video_sync_method;
-    if (format_video_sync == VSYNC_AUTO)
-        format_video_sync = (s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH :
-                            (s->oformat->flags & AVFMT_VARIABLE_FPS) ? VSYNC_VFR : VSYNC_CFR;
-    if (format_video_sync != VSYNC_PASSTHROUGH &&
-        ost->frame_number &&
-        in_picture->pts != AV_NOPTS_VALUE &&
-        in_picture->pts < ost->sync_opts) {
+    if (format_video_sync == VSYNC_AUTO) {
+        if(!strcmp(s->oformat->name, "avi")) {
+            format_video_sync = VSYNC_VFR;
+        } else
+            format_video_sync = (s->oformat->flags & AVFMT_VARIABLE_FPS) ? ((s->oformat->flags & AVFMT_NOTIMESTAMPS) ? VSYNC_PASSTHROUGH : VSYNC_VFR) : VSYNC_CFR;
+        if (   ist
+            && format_video_sync == VSYNC_CFR
+            && input_files[ist->file_index]->ctx->nb_streams == 1
+            && input_files[ist->file_index]->input_ts_offset == 0) {
+            format_video_sync = VSYNC_VSCFR;
+        }
+        if (format_video_sync == VSYNC_CFR && copy_ts) {
+            format_video_sync = VSYNC_VSCFR;
+        }
+    }
+
+    switch (format_video_sync) {
+    case VSYNC_VSCFR:
+        if (ost->frame_number == 0 && delta - duration >= 0.5) {
+            av_log(NULL, AV_LOG_DEBUG, "Not duplicating %d initial frames\n", (int)lrintf(delta - duration));
+            delta = duration;
+            ost->sync_opts = lrint(sync_ipts);
+        }
+    case VSYNC_CFR:
+        // FIXME set to 0.5 after we fix some dts/pts bugs like in avidec.c
+        if (delta < -1.1)
+            nb_frames = 0;
+        else if (delta > 1.1)
+            nb_frames = lrintf(delta);
+        break;
+    case VSYNC_VFR:
+        if (delta <= -0.6)
+            nb_frames = 0;
+        else if (delta > 0.6)
+            ost->sync_opts = lrint(sync_ipts);
+        break;
+    case VSYNC_DROP:
+    case VSYNC_PASSTHROUGH:
+        ost->sync_opts = lrint(sync_ipts);
+        break;
+    default:
+        av_assert0(0);
+    }
+
+    nb_frames = FFMIN(nb_frames, ost->max_frames - ost->frame_number);
+    if (nb_frames == 0) {
         nb_frames_drop++;
         av_log(NULL, AV_LOG_WARNING,
                "*** dropping frame %d from stream %d at ts %"PRId64"\n",
                ost->frame_number, ost->st->index, in_picture->pts);
         return;
+    } else if (nb_frames > 1) {
+        if (nb_frames > dts_error_threshold * 30) {
+            av_log(NULL, AV_LOG_ERROR, "%d frame duplication too large, skipping\n", nb_frames - 1);
+            nb_frames_drop++;
+            return;
+        }
+        nb_frames_dup += nb_frames - 1;
+        av_log(NULL, AV_LOG_VERBOSE, "*** %d dup!\n", nb_frames - 1);
     }
 
-    if (in_picture->pts == AV_NOPTS_VALUE)
-        in_picture->pts = ost->sync_opts;
-    ost->sync_opts = in_picture->pts;
-
-
-    if (!ost->frame_number)
-        ost->first_pts = in_picture->pts;
-
+  /* duplicates frame if needed */
+  for (i = 0; i < nb_frames; i++) {
     av_init_packet(&pkt);
     pkt.data = NULL;
     pkt.size = 0;
 
+    in_picture->pts = ost->sync_opts;
+
+#if 1
+    if (!check_recording_time(ost))
+#else
     if (ost->frame_number >= ost->max_frames)
+#endif
         return;
 
     if (s->oformat->flags & AVFMT_RAWPICTURE &&
@@ -543,6 +931,10 @@ static void do_video_out(AVFormatContext *s,
            method. */
         enc->coded_frame->interlaced_frame = in_picture->interlaced_frame;
         enc->coded_frame->top_field_first  = in_picture->top_field_first;
+        if (enc->coded_frame->interlaced_frame)
+            enc->field_order = enc->coded_frame->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
+        else
+            enc->field_order = AV_FIELD_PROGRESSIVE;
         pkt.data   = (uint8_t *)in_picture;
         pkt.size   =  sizeof(AVPicture);
         pkt.pts    = av_rescale_q(in_picture->pts, enc->time_base, ost->st->time_base);
@@ -550,37 +942,102 @@ static void do_video_out(AVFormatContext *s,
 
         write_frame(s, &pkt, ost);
     } else {
-        int got_packet;
+        int got_packet, forced_keyframe = 0;
+        double pts_time;
 
         if (ost->st->codec->flags & (CODEC_FLAG_INTERLACED_DCT|CODEC_FLAG_INTERLACED_ME) &&
             ost->top_field_first >= 0)
             in_picture->top_field_first = !!ost->top_field_first;
 
+        if (in_picture->interlaced_frame) {
+            if (enc->codec->id == AV_CODEC_ID_MJPEG)
+                enc->field_order = in_picture->top_field_first ? AV_FIELD_TT:AV_FIELD_BB;
+            else
+                enc->field_order = in_picture->top_field_first ? AV_FIELD_TB:AV_FIELD_BT;
+        } else
+            enc->field_order = AV_FIELD_PROGRESSIVE;
+
         in_picture->quality = ost->st->codec->global_quality;
         if (!enc->me_threshold)
             in_picture->pict_type = 0;
+
+        pts_time = in_picture->pts != AV_NOPTS_VALUE ?
+            in_picture->pts * av_q2d(enc->time_base) : NAN;
         if (ost->forced_kf_index < ost->forced_kf_count &&
             in_picture->pts >= ost->forced_kf_pts[ost->forced_kf_index]) {
-            in_picture->pict_type = AV_PICTURE_TYPE_I;
             ost->forced_kf_index++;
+            forced_keyframe = 1;
+        } else if (ost->forced_keyframes_pexpr) {
+            double res;
+            ost->forced_keyframes_expr_const_values[FKF_T] = pts_time;
+            res = av_expr_eval(ost->forced_keyframes_pexpr,
+                               ost->forced_keyframes_expr_const_values, NULL);
+            av_dlog(NULL, "force_key_frame: n:%f n_forced:%f prev_forced_n:%f t:%f prev_forced_t:%f -> res:%f\n",
+                    ost->forced_keyframes_expr_const_values[FKF_N],
+                    ost->forced_keyframes_expr_const_values[FKF_N_FORCED],
+                    ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N],
+                    ost->forced_keyframes_expr_const_values[FKF_T],
+                    ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T],
+                    res);
+            if (res) {
+                forced_keyframe = 1;
+                ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] =
+                    ost->forced_keyframes_expr_const_values[FKF_N];
+                ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] =
+                    ost->forced_keyframes_expr_const_values[FKF_T];
+                ost->forced_keyframes_expr_const_values[FKF_N_FORCED] += 1;
+            }
+
+            ost->forced_keyframes_expr_const_values[FKF_N] += 1;
+        }
+
+        if (forced_keyframe) {
+            in_picture->pict_type = AV_PICTURE_TYPE_I;
+            av_log(NULL, AV_LOG_DEBUG, "Forced keyframe at time %f\n", pts_time);
+        }
+
+        update_benchmark(NULL);
+        if (debug_ts) {
+            av_log(NULL, AV_LOG_INFO, "encoder <- type:video "
+                   "frame_pts:%s frame_pts_time:%s time_base:%d/%d\n",
+                   av_ts2str(in_picture->pts), av_ts2timestr(in_picture->pts, &enc->time_base),
+                   enc->time_base.num, enc->time_base.den);
         }
 
         ost->frames_encoded++;
 
         ret = avcodec_encode_video2(enc, &pkt, in_picture, &got_packet);
+        update_benchmark("encode_video %d.%d", ost->file_index, ost->index);
         if (ret < 0) {
             av_log(NULL, AV_LOG_FATAL, "Video encoding failed\n");
             exit_program(1);
         }
 
         if (got_packet) {
+            if (debug_ts) {
+                av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
+                       "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
+                       av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &enc->time_base),
+                       av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &enc->time_base));
+            }
+
+            if (pkt.pts == AV_NOPTS_VALUE && !(enc->codec->capabilities & CODEC_CAP_DELAY))
+                pkt.pts = ost->sync_opts;
+
             if (pkt.pts != AV_NOPTS_VALUE)
                 pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
             if (pkt.dts != AV_NOPTS_VALUE)
                 pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
 
+            if (debug_ts) {
+                av_log(NULL, AV_LOG_INFO, "encoder -> type:video "
+                    "pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s\n",
+                    av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ost->st->time_base),
+                    av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ost->st->time_base));
+            }
+
+            frame_size = pkt.size;
             write_frame(s, &pkt, ost);
-            *frame_size = pkt.size;
 
             /* if two pass, output log */
             if (ost->logfile && enc->stats_out) {
@@ -595,6 +1052,10 @@ static void do_video_out(AVFormatContext *s,
      * flush, we need to limit them here, before they go into encoder.
      */
     ost->frame_number++;
+
+    if (vstats_filename && frame_size)
+        do_video_stats(ost, frame_size);
+  }
 }
 
 static double psnr(double d)
@@ -619,14 +1080,14 @@ static void do_video_stats(OutputStream *ost, int frame_size)
 
     enc = ost->st->codec;
     if (enc->codec_type == AVMEDIA_TYPE_VIDEO) {
-        frame_number = ost->frame_number;
+        frame_number = ost->st->nb_frames;
         fprintf(vstats_file, "frame= %5d q= %2.1f ", frame_number, enc->coded_frame->quality / (float)FF_QP2LAMBDA);
         if (enc->flags&CODEC_FLAG_PSNR)
             fprintf(vstats_file, "PSNR= %6.2f ", psnr(enc->coded_frame->error[0] / (enc->width * enc->height * 255.0 * 255.0)));
 
         fprintf(vstats_file,"f_size= %6d ", frame_size);
         /* compute pts value */
-        ti1 = ost->sync_opts * av_q2d(enc->time_base);
+        ti1 = ost->st->pts.val * av_q2d(enc->time_base);
         if (ti1 < 0.01)
             ti1 = 0.01;
 
@@ -638,119 +1099,99 @@ static void do_video_stats(OutputStream *ost, int frame_size)
     }
 }
 
-/*
- * Read one frame for lavfi output for ost and encode it.
- */
-static int poll_filter(OutputStream *ost)
-{
-    OutputFile    *of = output_files[ost->file_index];
-    AVFrame *filtered_frame = NULL;
-    int frame_size, ret;
-
-    if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
-        return AVERROR(ENOMEM);
-    }
-    filtered_frame = ost->filtered_frame;
-
-    if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
-        !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
-        ret = av_buffersink_get_samples(ost->filter->filter, filtered_frame,
-                                         ost->st->codec->frame_size);
-    else
-        ret = av_buffersink_get_frame(ost->filter->filter, filtered_frame);
-
-    if (ret < 0)
-        return ret;
-
-    if (filtered_frame->pts != AV_NOPTS_VALUE) {
-        int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
-        filtered_frame->pts = av_rescale_q(filtered_frame->pts,
-                                           ost->filter->filter->inputs[0]->time_base,
-                                           ost->st->codec->time_base) -
-                              av_rescale_q(start_time,
-                                           AV_TIME_BASE_Q,
-                                           ost->st->codec->time_base);
-    }
-
-    switch (ost->filter->filter->inputs[0]->type) {
-    case AVMEDIA_TYPE_VIDEO:
-        if (!ost->frame_aspect_ratio)
-            ost->st->codec->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
-
-        do_video_out(of->ctx, ost, filtered_frame, &frame_size);
-        if (vstats_filename && frame_size)
-            do_video_stats(ost, frame_size);
-        break;
-    case AVMEDIA_TYPE_AUDIO:
-        do_audio_out(of->ctx, ost, filtered_frame);
-        break;
-    default:
-        // TODO support subtitle filters
-        av_assert0(0);
-    }
-
-    av_frame_unref(filtered_frame);
-
-    return 0;
-}
-
-/*
- * Read as many frames from possible from lavfi and encode them.
+/**
+ * Get and encode new output from any of the filtergraphs, without causing
+ * activity.
  *
- * Always read from the active stream with the lowest timestamp. If no frames
- * are available for it then return EAGAIN and wait for more input. This way we
- * can use lavfi sources that generate unlimited amount of frames without memory
- * usage exploding.
+ * @return  0 for success, <0 for severe errors
  */
-static int poll_filters(void)
+static int reap_filters(void)
 {
-    int i, j, ret = 0;
+    AVFrame *filtered_frame = NULL;
+    int i;
+    int64_t frame_pts;
 
-    while (ret >= 0 && !received_sigterm) {
-        OutputStream *ost = NULL;
-        int64_t min_pts = INT64_MAX;
+    /* Reap all buffers present in the buffer sinks */
+    for (i = 0; i < nb_output_streams; i++) {
+        OutputStream *ost = output_streams[i];
+        OutputFile    *of = output_files[ost->file_index];
+        AVFilterContext *filter;
+        AVCodecContext *enc = ost->st->codec;
+        int ret = 0;
 
-        /* choose output stream with the lowest timestamp */
-        for (i = 0; i < nb_output_streams; i++) {
-            int64_t pts = output_streams[i]->sync_opts;
+        if (!ost->filter)
+            continue;
+        filter = ost->filter->filter;
 
-            if (!output_streams[i]->filter || output_streams[i]->finished)
+        if (!ost->filtered_frame && !(ost->filtered_frame = av_frame_alloc())) {
+            return AVERROR(ENOMEM);
+        }
+        filtered_frame = ost->filtered_frame;
+
+        while (1) {
+            ret = av_buffersink_get_frame_flags(filter, filtered_frame,
+                                               AV_BUFFERSINK_FLAG_NO_REQUEST);
+            if (ret < 0) {
+                if (ret != AVERROR(EAGAIN) && ret != AVERROR_EOF) {
+                    av_log(NULL, AV_LOG_WARNING,
+                           "Error in av_buffersink_get_frame_flags(): %s\n", av_err2str(ret));
+                }
+                break;
+            }
+            if (ost->finished) {
+                av_frame_unref(filtered_frame);
                 continue;
-
-            pts = av_rescale_q(pts, output_streams[i]->st->codec->time_base,
-                               AV_TIME_BASE_Q);
-            if (pts < min_pts) {
-                min_pts = pts;
-                ost = output_streams[i];
             }
-        }
-
-        if (!ost)
-            break;
-
-        ret = poll_filter(ost);
-
-        if (ret == AVERROR_EOF) {
-            OutputFile *of = output_files[ost->file_index];
+            frame_pts = AV_NOPTS_VALUE;
+            if (filtered_frame->pts != AV_NOPTS_VALUE) {
+                int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
+                filtered_frame->pts = frame_pts =
+                    av_rescale_q(filtered_frame->pts, filter->inputs[0]->time_base, enc->time_base) -
+                    av_rescale_q(start_time, AV_TIME_BASE_Q, enc->time_base);
+            }
+            //if (ost->source_index >= 0)
+            //    *filtered_frame= *input_streams[ost->source_index]->decoded_frame; //for me_threshold
 
-            ost->finished = 1;
+            switch (filter->inputs[0]->type) {
+            case AVMEDIA_TYPE_VIDEO:
+                filtered_frame->pts = frame_pts;
+                if (!ost->frame_aspect_ratio.num)
+                    enc->sample_aspect_ratio = filtered_frame->sample_aspect_ratio;
+
+                if (debug_ts) {
+                    av_log(NULL, AV_LOG_INFO, "filter -> pts:%s pts_time:%s time_base:%d/%d\n",
+                            av_ts2str(filtered_frame->pts), av_ts2timestr(filtered_frame->pts, &enc->time_base),
+                            enc->time_base.num, enc->time_base.den);
+                }
 
-            if (of->shortest) {
-                for (j = 0; j < of->ctx->nb_streams; j++)
-                    output_streams[of->ost_index + j]->finished = 1;
+                do_video_out(of->ctx, ost, filtered_frame);
+                break;
+            case AVMEDIA_TYPE_AUDIO:
+                filtered_frame->pts = frame_pts;
+                if (!(enc->codec->capabilities & CODEC_CAP_PARAM_CHANGE) &&
+                    enc->channels != av_frame_get_channels(filtered_frame)) {
+                    av_log(NULL, AV_LOG_ERROR,
+                           "Audio filter graph output is not normalized and encoder does not support parameter changes\n");
+                    break;
+                }
+                do_audio_out(of->ctx, ost, filtered_frame);
+                break;
+            default:
+                // TODO support subtitle filters
+                av_assert0(0);
             }
 
-            ret = 0;
-        } else if (ret == AVERROR(EAGAIN))
-            return 0;
+            av_frame_unref(filtered_frame);
+        }
     }
 
-    return ret;
+    return 0;
 }
 
 static void print_final_stats(int64_t total_size)
 {
     uint64_t video_size = 0, audio_size = 0, extra_size = 0, other_size = 0;
+    uint64_t subtitle_size = 0;
     uint64_t data_size = 0;
     float percent = -1.0;
     int i, j;
@@ -760,6 +1201,7 @@ static void print_final_stats(int64_t total_size)
         switch (ost->st->codec->codec_type) {
             case AVMEDIA_TYPE_VIDEO: video_size += ost->data_size; break;
             case AVMEDIA_TYPE_AUDIO: audio_size += ost->data_size; break;
+            case AVMEDIA_TYPE_SUBTITLE: subtitle_size += ost->data_size; break;
             default:                 other_size += ost->data_size; break;
         }
         extra_size += ost->st->codec->extradata_size;
@@ -770,9 +1212,10 @@ static void print_final_stats(int64_t total_size)
         percent = 100.0 * (total_size - data_size) / data_size;
 
     av_log(NULL, AV_LOG_INFO, "\n");
-    av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
+    av_log(NULL, AV_LOG_INFO, "video:%1.0fkB audio:%1.0fkB subtitle:%1.0fkB other streams:%1.0fkB global headers:%1.0fkB muxing overhead: ",
            video_size / 1024.0,
            audio_size / 1024.0,
+           subtitle_size / 1024.0,
            other_size / 1024.0,
            extra_size / 1024.0);
     if (percent >= 0.0)
@@ -849,27 +1292,30 @@ static void print_final_stats(int64_t total_size)
         av_log(NULL, AV_LOG_VERBOSE, "  Total: %"PRIu64" packets (%"PRIu64" bytes) muxed\n",
                total_packets, total_size);
     }
+    if(video_size + data_size + audio_size + subtitle_size + extra_size == 0){
+        av_log(NULL, AV_LOG_WARNING, "Output file is empty, nothing was encoded (check -ss / -t / -frames parameters if used)\n");
+    }
 }
 
-static void print_report(int is_last_report, int64_t timer_start)
+static void print_report(int is_last_report, int64_t timer_start, int64_t cur_time)
 {
     char buf[1024];
+    AVBPrint buf_script;
     OutputStream *ost;
     AVFormatContext *oc;
     int64_t total_size;
     AVCodecContext *enc;
     int frame_number, vid, i;
-    double bitrate, ti1, pts;
+    double bitrate;
+    int64_t pts = INT64_MIN;
     static int64_t last_time = -1;
     static int qp_histogram[52];
+    int hours, mins, secs, us;
 
-    if (!print_stats && !is_last_report)
+    if (!print_stats && !is_last_report && !progress_avio)
         return;
 
     if (!is_last_report) {
-        int64_t cur_time;
-        /* display the report every 0.5 seconds */
-        cur_time = av_gettime();
         if (last_time == -1) {
             last_time = cur_time;
             return;
@@ -885,17 +1331,10 @@ static void print_report(int is_last_report, int64_t timer_start)
     total_size = avio_size(oc->pb);
     if (total_size <= 0) // FIXME improve avio_size() so it works with non seekable output too
         total_size = avio_tell(oc->pb);
-    if (total_size < 0) {
-        char errbuf[128];
-        av_strerror(total_size, errbuf, sizeof(errbuf));
-        av_log(NULL, AV_LOG_VERBOSE, "Bitrate not available, "
-               "avio_tell() failed: %s\n", errbuf);
-        total_size = 0;
-    }
 
     buf[0] = '\0';
-    ti1 = 1e10;
     vid = 0;
+    av_bprint_init(&buf_script, 0, 1);
     for (i = 0; i < nb_output_streams; i++) {
         float q = -1;
         ost = output_streams[i];
@@ -904,13 +1343,20 @@ static void print_report(int is_last_report, int64_t timer_start)
             q = enc->coded_frame->quality / (float)FF_QP2LAMBDA;
         if (vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "q=%2.1f ", q);
+            av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
+                       ost->file_index, ost->index, q);
         }
         if (!vid && enc->codec_type == AVMEDIA_TYPE_VIDEO) {
-            float t = (av_gettime() - timer_start) / 1000000.0;
+            float fps, t = (cur_time-timer_start) / 1000000.0;
 
             frame_number = ost->frame_number;
-            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3d q=%3.1f ",
-                     frame_number, (t > 1) ? (int)(frame_number / t + 0.5) : 0, q);
+            fps = t > 1 ? frame_number / t : 0;
+            snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "frame=%5d fps=%3.*f q=%3.1f ",
+                     frame_number, fps < 9.95, fps, q);
+            av_bprintf(&buf_script, "frame=%d\n", frame_number);
+            av_bprintf(&buf_script, "fps=%.1f\n", fps);
+            av_bprintf(&buf_script, "stream_%d_%d_q=%.1f\n",
+                       ost->file_index, ost->index, q);
             if (is_last_report)
                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "L");
             if (qp_hist) {
@@ -921,10 +1367,11 @@ static void print_report(int is_last_report, int64_t timer_start)
                 for (j = 0; j < 32; j++)
                     snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%X", (int)lrintf(log2(qp_histogram[j] + 1)));
             }
-            if (enc->flags&CODEC_FLAG_PSNR) {
+            if ((enc->flags&CODEC_FLAG_PSNR) && (enc->coded_frame || is_last_report)) {
                 int j;
                 double error, error_sum = 0;
                 double scale, scale_sum = 0;
+                double p;
                 char type[3] = { 'Y','U','V' };
                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "PSNR=");
                 for (j = 0; j < 3; j++) {
@@ -939,37 +1386,80 @@ static void print_report(int is_last_report, int64_t timer_start)
                         scale /= 4;
                     error_sum += error;
                     scale_sum += scale;
-                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], psnr(error / scale));
+                    p = psnr(error / scale);
+                    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "%c:%2.2f ", type[j], p);
+                    av_bprintf(&buf_script, "stream_%d_%d_psnr_%c=%2.2f\n",
+                               ost->file_index, ost->index, type[j] | 32, p);
                 }
+                p = psnr(error_sum / scale_sum);
                 snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), "*:%2.2f ", psnr(error_sum / scale_sum));
+                av_bprintf(&buf_script, "stream_%d_%d_psnr_all=%2.2f\n",
+                           ost->file_index, ost->index, p);
             }
             vid = 1;
         }
         /* compute min output value */
-        pts = (double)ost->st->pts.val * av_q2d(ost->st->time_base);
-        if ((pts < ti1) && (pts > 0))
-            ti1 = pts;
+        if (ost->st->pts.val != AV_NOPTS_VALUE)
+            pts = FFMAX(pts, av_rescale_q(ost->st->pts.val,
+                                          ost->st->time_base, AV_TIME_BASE_Q));
     }
-    if (ti1 < 0.01)
-        ti1 = 0.01;
-
-    bitrate = (double)(total_size * 8) / ti1 / 1000.0;
 
-    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
-            "size=%8.0fkB time=%0.2f bitrate=%6.1fkbits/s",
-            (double)total_size / 1024, ti1, bitrate);
+    secs = pts / AV_TIME_BASE;
+    us = pts % AV_TIME_BASE;
+    mins = secs / 60;
+    secs %= 60;
+    hours = mins / 60;
+    mins %= 60;
 
-    if (nb_frames_drop)
-        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " drop=%d",
-                 nb_frames_drop);
+    bitrate = pts && total_size >= 0 ? total_size * 8 / (pts / 1000.0) : -1;
 
-    av_log(NULL, AV_LOG_INFO, "%s    \r", buf);
+    if (total_size < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+                                 "size=N/A time=");
+    else                snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+                                 "size=%8.0fkB time=", total_size / 1024.0);
+    snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+             "%02d:%02d:%02d.%02d ", hours, mins, secs,
+             (100 * us) / AV_TIME_BASE);
+    if (bitrate < 0) snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+                              "bitrate=N/A");
+    else             snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf),
+                              "bitrate=%6.1fkbits/s", bitrate);
+    if (total_size < 0) av_bprintf(&buf_script, "total_size=N/A\n");
+    else                av_bprintf(&buf_script, "total_size=%"PRId64"\n", total_size);
+    av_bprintf(&buf_script, "out_time_ms=%"PRId64"\n", pts);
+    av_bprintf(&buf_script, "out_time=%02d:%02d:%02d.%06d\n",
+               hours, mins, secs, us);
+
+    if (nb_frames_dup || nb_frames_drop)
+        snprintf(buf + strlen(buf), sizeof(buf) - strlen(buf), " dup=%d drop=%d",
+                nb_frames_dup, nb_frames_drop);
+    av_bprintf(&buf_script, "dup_frames=%d\n", nb_frames_dup);
+    av_bprintf(&buf_script, "drop_frames=%d\n", nb_frames_drop);
+
+    if (print_stats || is_last_report) {
+        if (print_stats==1 && AV_LOG_INFO > av_log_get_level()) {
+            fprintf(stderr, "%s    \r", buf);
+        } else
+            av_log(NULL, AV_LOG_INFO, "%s    \r", buf);
 
     fflush(stderr);
+    }
+
+    if (progress_avio) {
+        av_bprintf(&buf_script, "progress=%s\n",
+                   is_last_report ? "end" : "continue");
+        avio_write(progress_avio, buf_script.str,
+                   FFMIN(buf_script.len, buf_script.size - 1));
+        avio_flush(progress_avio);
+        av_bprint_finalize(&buf_script, NULL);
+        if (is_last_report) {
+            avio_close(progress_avio);
+            progress_avio = NULL;
+        }
+    }
 
     if (is_last_report)
         print_final_stats(total_size);
-
 }
 
 static void flush_encoders(void)
@@ -1009,12 +1499,15 @@ static void flush_encoders(void)
 
             if (encode) {
                 AVPacket pkt;
+                int pkt_size;
                 int got_packet;
                 av_init_packet(&pkt);
                 pkt.data = NULL;
                 pkt.size = 0;
 
+                update_benchmark(NULL);
                 ret = encode(enc, &pkt, NULL, &got_packet);
+                update_benchmark("flush %s %d.%d", desc, ost->file_index, ost->index);
                 if (ret < 0) {
                     av_log(NULL, AV_LOG_FATAL, "%s encoding failed\n", desc);
                     exit_program(1);
@@ -1026,13 +1519,21 @@ static void flush_encoders(void)
                     stop_encoding = 1;
                     break;
                 }
+                if (ost->finished & MUXER_FINISHED) {
+                    av_free_packet(&pkt);
+                    continue;
+                }
                 if (pkt.pts != AV_NOPTS_VALUE)
                     pkt.pts = av_rescale_q(pkt.pts, enc->time_base, ost->st->time_base);
                 if (pkt.dts != AV_NOPTS_VALUE)
                     pkt.dts = av_rescale_q(pkt.dts, enc->time_base, ost->st->time_base);
                 if (pkt.duration > 0)
                     pkt.duration = av_rescale_q(pkt.duration, enc->time_base, ost->st->time_base);
+                pkt_size = pkt.size;
                 write_frame(os, &pkt, ost);
+                if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && vstats_filename) {
+                    do_video_stats(ost, pkt_size);
+                }
             }
 
             if (stop_encoding)
@@ -1052,7 +1553,10 @@ static int check_output_constraints(InputStream *ist, OutputStream *ost)
     if (ost->source_index != ist_index)
         return 0;
 
-    if (of->start_time != AV_NOPTS_VALUE && ist->last_dts < of->start_time)
+    if (ost->finished)
+        return 0;
+
+    if (of->start_time != AV_NOPTS_VALUE && ist->pts < of->start_time)
         return 0;
 
     return 1;
@@ -1064,6 +1568,8 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
     InputFile   *f = input_files [ist->file_index];
     int64_t start_time = (of->start_time == AV_NOPTS_VALUE) ? 0 : of->start_time;
     int64_t ost_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ost->st->time_base);
+    int64_t ist_tb_start_time = av_rescale_q(start_time, AV_TIME_BASE_Q, ist->st->time_base);
+    AVPicture pict;
     AVPacket opkt;
 
     av_init_packet(&opkt);
@@ -1072,9 +1578,19 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
         !ost->copy_initial_nonkeyframes)
         return;
 
+    if (pkt->pts == AV_NOPTS_VALUE) {
+        if (!ost->frame_number && ist->pts < start_time &&
+            !ost->copy_prior_start)
+            return;
+    } else {
+        if (!ost->frame_number && pkt->pts < ist_tb_start_time &&
+            !ost->copy_prior_start)
+            return;
+    }
+
     if (of->recording_time != INT64_MAX &&
-        ist->last_dts >= of->recording_time + start_time) {
-        ost->finished = 1;
+        ist->pts >= of->recording_time + start_time) {
+        close_output_stream(ost);
         return;
     }
 
@@ -1082,8 +1598,8 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
         start_time = f->ctx->start_time;
         if (f->start_time != AV_NOPTS_VALUE)
             start_time += f->start_time;
-        if (ist->last_dts >= f->recording_time + start_time) {
-            ost->finished = 1;
+        if (ist->pts >= f->recording_time + start_time) {
+            close_output_stream(ost);
             return;
         }
     }
@@ -1098,11 +1614,20 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
         opkt.pts = AV_NOPTS_VALUE;
 
     if (pkt->dts == AV_NOPTS_VALUE)
-        opkt.dts = av_rescale_q(ist->last_dts, AV_TIME_BASE_Q, ost->st->time_base);
+        opkt.dts = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ost->st->time_base);
     else
         opkt.dts = av_rescale_q(pkt->dts, ist->st->time_base, ost->st->time_base);
     opkt.dts -= ost_tb_start_time;
 
+    if (ost->st->codec->codec_type == AVMEDIA_TYPE_AUDIO && pkt->dts != AV_NOPTS_VALUE) {
+        int duration = av_get_audio_frame_duration(ist->st->codec, pkt->size);
+        if(!duration)
+            duration = ist->st->codec->frame_size;
+        opkt.dts = opkt.pts = av_rescale_delta(ist->st->time_base, pkt->dts,
+                                               (AVRational){1, ist->st->codec->sample_rate}, duration, &ist->filter_in_rescale_delta_last,
+                                               ost->st->time_base) - ost_tb_start_time;
+    }
+
     opkt.duration = av_rescale_q(pkt->duration, ist->st->time_base, ost->st->time_base);
     opkt.flags    = pkt->flags;
 
@@ -1124,6 +1649,15 @@ static void do_streamcopy(InputStream *ist, OutputStream *ost, const AVPacket *p
         opkt.data = pkt->data;
         opkt.size = pkt->size;
     }
+    av_copy_packet_side_data(&opkt, pkt);
+
+    if (ost->st->codec->codec_type == AVMEDIA_TYPE_VIDEO && (of->ctx->oformat->flags & AVFMT_RAWPICTURE)) {
+        /* store AVPicture in AVPacket, as expected by the output format */
+        avpicture_fill(&pict, opkt.data, ost->st->codec->pix_fmt, ost->st->codec->width, ost->st->codec->height);
+        opkt.data = (uint8_t *)&pict;
+        opkt.size = sizeof(AVPicture);
+        opkt.flags |= AV_PKT_FLAG_KEY;
+    }
 
     write_frame(of->ctx, &opkt, ost);
     ost->st->codec->frame_number++;
@@ -1136,6 +1670,8 @@ int guess_input_channel_layout(InputStream *ist)
     if (!dec->channel_layout) {
         char layout_name[256];
 
+        if (dec->channels > ist->guess_layout_max)
+            return 0;
         dec->channel_layout = av_get_default_channel_layout(dec->channels);
         if (!dec->channel_layout)
             return 0;
@@ -1152,6 +1688,7 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
     AVFrame *decoded_frame, *f;
     AVCodecContext *avctx = ist->st->codec;
     int i, ret, err = 0, resample_changed;
+    AVRational decoded_frame_tb;
 
     if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
         return AVERROR(ENOMEM);
@@ -1159,11 +1696,26 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
         return AVERROR(ENOMEM);
     decoded_frame = ist->decoded_frame;
 
+    update_benchmark(NULL);
     ret = avcodec_decode_audio4(avctx, decoded_frame, got_output, pkt);
+    update_benchmark("decode_audio %d.%d", ist->file_index, ist->st->index);
+
+    if (ret >= 0 && avctx->sample_rate <= 0) {
+        av_log(avctx, AV_LOG_ERROR, "Sample rate %d invalid\n", avctx->sample_rate);
+        ret = AVERROR_INVALIDDATA;
+    }
+
+    if (*got_output || ret<0 || pkt->size)
+        decode_error_stat[ret<0] ++;
+
     if (!*got_output || ret < 0) {
         if (!pkt->size) {
             for (i = 0; i < ist->nb_filters; i++)
+#if 1
+                av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
+#else
                 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
+#endif
         }
         return ret;
     }
@@ -1171,14 +1723,14 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
     ist->samples_decoded += decoded_frame->nb_samples;
     ist->frames_decoded++;
 
-    /* if the decoder provides a pts, use it instead of the last packet pts.
-       the decoder could be delaying output by a packet or more. */
-    if (decoded_frame->pts != AV_NOPTS_VALUE)
-        ist->next_dts = decoded_frame->pts;
-    else if (pkt->pts != AV_NOPTS_VALUE) {
-        decoded_frame->pts = pkt->pts;
-        pkt->pts           = AV_NOPTS_VALUE;
-    }
+#if 1
+    /* increment next_dts to use for the case where the input stream does not
+       have timestamps or there are multiple frames in the packet */
+    ist->next_pts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
+                     avctx->sample_rate;
+    ist->next_dts += ((int64_t)AV_TIME_BASE * decoded_frame->nb_samples) /
+                     avctx->sample_rate;
+#endif
 
     resample_changed = ist->resample_sample_fmt     != decoded_frame->format         ||
                        ist->resample_channels       != avctx->channels               ||
@@ -1214,17 +1766,44 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
         ist->resample_channels       = avctx->channels;
 
         for (i = 0; i < nb_filtergraphs; i++)
-            if (ist_in_filtergraph(filtergraphs[i], ist) &&
-                configure_filtergraph(filtergraphs[i]) < 0) {
-                av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
-                exit_program(1);
+            if (ist_in_filtergraph(filtergraphs[i], ist)) {
+                FilterGraph *fg = filtergraphs[i];
+                int j;
+                if (configure_filtergraph(fg) < 0) {
+                    av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
+                    exit_program(1);
+                }
+                for (j = 0; j < fg->nb_outputs; j++) {
+                    OutputStream *ost = fg->outputs[j]->ost;
+                    if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
+                        !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
+                        av_buffersink_set_frame_size(ost->filter->filter,
+                                                     ost->st->codec->frame_size);
+                }
             }
     }
 
+    /* if the decoder provides a pts, use it instead of the last packet pts.
+       the decoder could be delaying output by a packet or more. */
+    if (decoded_frame->pts != AV_NOPTS_VALUE) {
+        ist->dts = ist->next_dts = ist->pts = ist->next_pts = av_rescale_q(decoded_frame->pts, avctx->time_base, AV_TIME_BASE_Q);
+        decoded_frame_tb   = avctx->time_base;
+    } else if (decoded_frame->pkt_pts != AV_NOPTS_VALUE) {
+        decoded_frame->pts = decoded_frame->pkt_pts;
+        pkt->pts           = AV_NOPTS_VALUE;
+        decoded_frame_tb   = ist->st->time_base;
+    } else if (pkt->pts != AV_NOPTS_VALUE) {
+        decoded_frame->pts = pkt->pts;
+        pkt->pts           = AV_NOPTS_VALUE;
+        decoded_frame_tb   = ist->st->time_base;
+    }else {
+        decoded_frame->pts = ist->dts;
+        decoded_frame_tb   = AV_TIME_BASE_Q;
+    }
     if (decoded_frame->pts != AV_NOPTS_VALUE)
-        decoded_frame->pts = av_rescale_q(decoded_frame->pts,
-                                          ist->st->time_base,
-                                          (AVRational){1, ist->st->codec->sample_rate});
+        decoded_frame->pts = av_rescale_delta(decoded_frame_tb, decoded_frame->pts,
+                                              (AVRational){1, ist->st->codec->sample_rate}, decoded_frame->nb_samples, &ist->filter_in_rescale_delta_last,
+                                              (AVRational){1, ist->st->codec->sample_rate});
     for (i = 0; i < ist->nb_filters; i++) {
         if (i < ist->nb_filters - 1) {
             f = ist->filter_frame;
@@ -1233,11 +1812,14 @@ static int decode_audio(InputStream *ist, AVPacket *pkt, int *got_output)
                 break;
         } else
             f = decoded_frame;
-
-        err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
+        err = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f,
+                                     AV_BUFFERSRC_FLAG_PUSH);
+        if (err == AVERROR_EOF)
+            err = 0; /* ignore */
         if (err < 0)
             break;
     }
+    decoded_frame->pts = AV_NOPTS_VALUE;
 
     av_frame_unref(ist->filter_frame);
     av_frame_unref(decoded_frame);
@@ -1248,23 +1830,39 @@ static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
 {
     AVFrame *decoded_frame, *f;
     int i, ret = 0, err = 0, resample_changed;
+    int64_t best_effort_timestamp;
+    AVRational *frame_sample_aspect;
 
     if (!ist->decoded_frame && !(ist->decoded_frame = av_frame_alloc()))
         return AVERROR(ENOMEM);
     if (!ist->filter_frame && !(ist->filter_frame = av_frame_alloc()))
         return AVERROR(ENOMEM);
     decoded_frame = ist->decoded_frame;
+    pkt->dts  = av_rescale_q(ist->dts, AV_TIME_BASE_Q, ist->st->time_base);
 
+    update_benchmark(NULL);
     ret = avcodec_decode_video2(ist->st->codec,
                                 decoded_frame, got_output, pkt);
+    update_benchmark("decode_video %d.%d", ist->file_index, ist->st->index);
+
+    if (*got_output || ret<0 || pkt->size)
+        decode_error_stat[ret<0] ++;
+
     if (!*got_output || ret < 0) {
         if (!pkt->size) {
             for (i = 0; i < ist->nb_filters; i++)
+#if 1
+                av_buffersrc_add_ref(ist->filters[i]->filter, NULL, 0);
+#else
                 av_buffersrc_add_frame(ist->filters[i]->filter, NULL);
+#endif
         }
         return ret;
     }
 
+    if(ist->top_field_first>=0)
+        decoded_frame->top_field_first = ist->top_field_first;
+
     ist->frames_decoded++;
 
     if (ist->hwaccel_retrieve_data && decoded_frame->format == ist->hwaccel_pix_fmt) {
@@ -1274,8 +1872,21 @@ static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
     }
     ist->hwaccel_retrieved_pix_fmt = decoded_frame->format;
 
-    decoded_frame->pts = guess_correct_pts(&ist->pts_ctx, decoded_frame->pkt_pts,
-                                           decoded_frame->pkt_dts);
+    best_effort_timestamp= av_frame_get_best_effort_timestamp(decoded_frame);
+    if(best_effort_timestamp != AV_NOPTS_VALUE)
+        ist->next_pts = ist->pts = av_rescale_q(decoded_frame->pts = best_effort_timestamp, ist->st->time_base, AV_TIME_BASE_Q);
+
+    if (debug_ts) {
+        av_log(NULL, AV_LOG_INFO, "decoder -> ist_index:%d type:video "
+               "frame_pts:%s frame_pts_time:%s best_effort_ts:%"PRId64" best_effort_ts_time:%s keyframe:%d frame_type:%d time_base:%d/%d\n",
+               ist->st->index, av_ts2str(decoded_frame->pts),
+               av_ts2timestr(decoded_frame->pts, &ist->st->time_base),
+               best_effort_timestamp,
+               av_ts2timestr(best_effort_timestamp, &ist->st->time_base),
+               decoded_frame->key_frame, decoded_frame->pict_type,
+               ist->st->time_base.num, ist->st->time_base.den);
+    }
+
     pkt->size = 0;
 
     if (ist->st->sample_aspect_ratio.num)
@@ -1291,23 +1902,24 @@ static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
                ist->resample_width,  ist->resample_height,  av_get_pix_fmt_name(ist->resample_pix_fmt),
                decoded_frame->width, decoded_frame->height, av_get_pix_fmt_name(decoded_frame->format));
 
-        ret = poll_filters();
-        if (ret < 0 && (ret != AVERROR_EOF && ret != AVERROR(EAGAIN)))
-            av_log(NULL, AV_LOG_ERROR, "Error while filtering.\n");
-
         ist->resample_width   = decoded_frame->width;
         ist->resample_height  = decoded_frame->height;
         ist->resample_pix_fmt = decoded_frame->format;
 
-        for (i = 0; i < nb_filtergraphs; i++)
-            if (ist_in_filtergraph(filtergraphs[i], ist) &&
+        for (i = 0; i < nb_filtergraphs; i++) {
+            if (ist_in_filtergraph(filtergraphs[i], ist) && ist->reinit_filters &&
                 configure_filtergraph(filtergraphs[i]) < 0) {
                 av_log(NULL, AV_LOG_FATAL, "Error reinitializing filters!\n");
                 exit_program(1);
             }
+        }
     }
 
+    frame_sample_aspect= av_opt_ptr(avcodec_get_frame_class(), decoded_frame, "sample_aspect_ratio");
     for (i = 0; i < ist->nb_filters; i++) {
+        if (!frame_sample_aspect->num)
+            *frame_sample_aspect = ist->st->sample_aspect_ratio;
+
         if (i < ist->nb_filters - 1) {
             f = ist->filter_frame;
             err = av_frame_ref(f, decoded_frame);
@@ -1315,10 +1927,14 @@ static int decode_video(InputStream *ist, AVPacket *pkt, int *got_output)
                 break;
         } else
             f = decoded_frame;
-
-        err = av_buffersrc_add_frame(ist->filters[i]->filter, f);
-        if (err < 0)
-            break;
+        ret = av_buffersrc_add_frame_flags(ist->filters[i]->filter, f, AV_BUFFERSRC_FLAG_PUSH);
+        if (ret == AVERROR_EOF) {
+            ret = 0; /* ignore */
+        } else if (ret < 0) {
+            av_log(NULL, AV_LOG_FATAL,
+                   "Failed to inject frame into filter network: %s\n", av_err2str(ret));
+            exit_program(1);
+        }
     }
 
 fail:
@@ -1332,22 +1948,57 @@ static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
     AVSubtitle subtitle;
     int i, ret = avcodec_decode_subtitle2(ist->st->codec,
                                           &subtitle, got_output, pkt);
-    if (ret < 0)
+
+    if (*got_output || ret<0 || pkt->size)
+        decode_error_stat[ret<0] ++;
+
+    if (ret < 0 || !*got_output) {
+        if (!pkt->size)
+            sub2video_flush(ist);
         return ret;
+    }
+
+    if (ist->fix_sub_duration) {
+        int end = 1;
+        if (ist->prev_sub.got_output) {
+            end = av_rescale(subtitle.pts - ist->prev_sub.subtitle.pts,
+                             1000, AV_TIME_BASE);
+            if (end < ist->prev_sub.subtitle.end_display_time) {
+                av_log(ist->st->codec, AV_LOG_DEBUG,
+                       "Subtitle duration reduced from %d to %d%s\n",
+                       ist->prev_sub.subtitle.end_display_time, end,
+                       end <= 0 ? ", dropping it" : "");
+                ist->prev_sub.subtitle.end_display_time = end;
+            }
+        }
+        FFSWAP(int,        *got_output, ist->prev_sub.got_output);
+        FFSWAP(int,        ret,         ist->prev_sub.ret);
+        FFSWAP(AVSubtitle, subtitle,    ist->prev_sub.subtitle);
+        if (end <= 0)
+            goto out;
+    }
+
     if (!*got_output)
         return ret;
 
+    sub2video_update(ist, &subtitle);
+
+    if (!subtitle.num_rects)
+        goto out;
+
     ist->frames_decoded++;
 
     for (i = 0; i < nb_output_streams; i++) {
         OutputStream *ost = output_streams[i];
 
-        if (!check_output_constraints(ist, ost) || !ost->encoding_needed)
+        if (!check_output_constraints(ist, ost) || !ost->encoding_needed
+            || ost->enc->type != AVMEDIA_TYPE_SUBTITLE)
             continue;
 
-        do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle, pkt->pts);
+        do_subtitle_out(output_files[ost->file_index]->ctx, ost, ist, &subtitle);
     }
 
+out:
     avsubtitle_free(&subtitle);
     return ret;
 }
@@ -1355,12 +2006,24 @@ static int transcode_subtitles(InputStream *ist, AVPacket *pkt, int *got_output)
 /* pkt = NULL means EOF (needed to flush decoder buffers) */
 static int output_packet(InputStream *ist, const AVPacket *pkt)
 {
-    int i;
-    int got_output;
+    int ret = 0, i;
+    int got_output = 0;
+
     AVPacket avpkt;
+    if (!ist->saw_first_ts) {
+        ist->dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
+        ist->pts = 0;
+        if (pkt != NULL && pkt->pts != AV_NOPTS_VALUE && !ist->decoding_needed) {
+            ist->dts += av_rescale_q(pkt->pts, ist->st->time_base, AV_TIME_BASE_Q);
+            ist->pts = ist->dts; //unused but better to set it to a value thats not totally wrong
+        }
+        ist->saw_first_ts = 1;
+    }
 
     if (ist->next_dts == AV_NOPTS_VALUE)
-        ist->next_dts = ist->last_dts;
+        ist->next_dts = ist->dts;
+    if (ist->next_pts == AV_NOPTS_VALUE)
+        ist->next_pts = ist->pts;
 
     if (pkt == NULL) {
         /* EOF handling */
@@ -1372,15 +2035,19 @@ static int output_packet(InputStream *ist, const AVPacket *pkt)
         avpkt = *pkt;
     }
 
-    if (pkt->dts != AV_NOPTS_VALUE)
-        ist->next_dts = ist->last_dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
+    if (pkt->dts != AV_NOPTS_VALUE) {
+        ist->next_dts = ist->dts = av_rescale_q(pkt->dts, ist->st->time_base, AV_TIME_BASE_Q);
+        if (ist->st->codec->codec_type != AVMEDIA_TYPE_VIDEO || !ist->decoding_needed)
+            ist->next_pts = ist->pts = ist->dts;
+    }
 
     // while we have more to decode or while the decoder did output something on EOF
     while (ist->decoding_needed && (avpkt.size > 0 || (!pkt && got_output))) {
-        int ret = 0;
+        int duration;
     handle_eof:
 
-        ist->last_dts = ist->next_dts;
+        ist->pts = ist->next_pts;
+        ist->dts = ist->next_dts;
 
         if (avpkt.size && avpkt.size != pkt->size &&
             !(ist->dec->capabilities & CODEC_CAP_SUBFRAMES)) {
@@ -1395,16 +2062,23 @@ static int output_packet(InputStream *ist, const AVPacket *pkt)
             break;
         case AVMEDIA_TYPE_VIDEO:
             ret = decode_video    (ist, &avpkt, &got_output);
-            if (avpkt.duration)
-                ist->next_dts += av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
-            else if (ist->st->avg_frame_rate.num)
-                ist->next_dts += av_rescale_q(1, av_inv_q(ist->st->avg_frame_rate),
-                                              AV_TIME_BASE_Q);
-            else if (ist->st->codec->time_base.num != 0) {
-                int ticks      = ist->st->parser ? ist->st->parser->repeat_pict + 1 :
-                                                   ist->st->codec->ticks_per_frame;
-                ist->next_dts += av_rescale_q(ticks, ist->st->codec->time_base, AV_TIME_BASE_Q);
-            }
+            if (avpkt.duration) {
+                duration = av_rescale_q(avpkt.duration, ist->st->time_base, AV_TIME_BASE_Q);
+            } else if(ist->st->codec->time_base.num != 0 && ist->st->codec->time_base.den != 0) {
+                int ticks= ist->st->parser ? ist->st->parser->repeat_pict+1 : ist->st->codec->ticks_per_frame;
+                duration = ((int64_t)AV_TIME_BASE *
+                                ist->st->codec->time_base.num * ticks) /
+                                ist->st->codec->time_base.den;
+            } else
+                duration = 0;
+
+            if(ist->dts != AV_NOPTS_VALUE && duration) {
+                ist->next_dts += duration;
+            }else
+                ist->next_dts = AV_NOPTS_VALUE;
+
+            if (got_output)
+                ist->next_pts += duration; //FIXME the duration is not correct in some cases
             break;
         case AVMEDIA_TYPE_SUBTITLE:
             ret = transcode_subtitles(ist, &avpkt, &got_output);
@@ -1415,8 +2089,14 @@ static int output_packet(InputStream *ist, const AVPacket *pkt)
 
         if (ret < 0)
             return ret;
+
+        avpkt.dts=
+        avpkt.pts= AV_NOPTS_VALUE;
+
         // touch data and size only if not EOF
         if (pkt) {
+            if(ist->st->codec->codec_type != AVMEDIA_TYPE_AUDIO)
+                ret = avpkt.size;
             avpkt.data += ret;
             avpkt.size -= ret;
         }
@@ -1427,21 +2107,30 @@ static int output_packet(InputStream *ist, const AVPacket *pkt)
 
     /* handle stream copy */
     if (!ist->decoding_needed) {
-        ist->last_dts = ist->next_dts;
+        ist->dts = ist->next_dts;
         switch (ist->st->codec->codec_type) {
         case AVMEDIA_TYPE_AUDIO:
             ist->next_dts += ((int64_t)AV_TIME_BASE * ist->st->codec->frame_size) /
                              ist->st->codec->sample_rate;
             break;
         case AVMEDIA_TYPE_VIDEO:
-            if (ist->st->codec->time_base.num != 0) {
-                int ticks = ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
+            if (ist->framerate.num) {
+                // TODO: Remove work-around for c99-to-c89 issue 7
+                AVRational time_base_q = AV_TIME_BASE_Q;
+                int64_t next_dts = av_rescale_q(ist->next_dts, time_base_q, av_inv_q(ist->framerate));
+                ist->next_dts = av_rescale_q(next_dts + 1, av_inv_q(ist->framerate), time_base_q);
+            } else if (pkt->duration) {
+                ist->next_dts += av_rescale_q(pkt->duration, ist->st->time_base, AV_TIME_BASE_Q);
+            } else if(ist->st->codec->time_base.num != 0) {
+                int ticks= ist->st->parser ? ist->st->parser->repeat_pict + 1 : ist->st->codec->ticks_per_frame;
                 ist->next_dts += ((int64_t)AV_TIME_BASE *
                                   ist->st->codec->time_base.num * ticks) /
                                   ist->st->codec->time_base.den;
             }
             break;
         }
+        ist->pts = ist->dts;
+        ist->next_pts = ist->next_dts;
     }
     for (i = 0; pkt && i < nb_output_streams; i++) {
         OutputStream *ost = output_streams[i];
@@ -1531,26 +2220,17 @@ static int get_buffer(AVCodecContext *s, AVFrame *frame, int flags)
 
 static int init_input_stream(int ist_index, char *error, int error_len)
 {
-    int i, ret;
+    int ret;
     InputStream *ist = input_streams[ist_index];
+
     if (ist->decoding_needed) {
         AVCodec *codec = ist->dec;
         if (!codec) {
-            snprintf(error, error_len, "Decoder (codec id %d) not found for input stream #%d:%d",
-                    ist->st->codec->codec_id, ist->file_index, ist->st->index);
+            snprintf(error, error_len, "Decoder (codec %s) not found for input stream #%d:%d",
+                    avcodec_get_name(ist->st->codec->codec_id), ist->file_index, ist->st->index);
             return AVERROR(EINVAL);
         }
 
-        /* update requested sample format for the decoder based on the
-           corresponding encoder sample format */
-        for (i = 0; i < nb_output_streams; i++) {
-            OutputStream *ost = output_streams[i];
-            if (ost->source_index == ist_index) {
-                update_sample_fmt(ist->st->codec, codec, ost->st->codec);
-                break;
-            }
-        }
-
         ist->st->codec->opaque      = ist;
         ist->st->codec->get_format  = get_format;
         ist->st->codec->get_buffer2 = get_buffer;
@@ -1561,24 +2241,20 @@ static int init_input_stream(int ist_index, char *error, int error_len)
         if (!av_dict_get(ist->opts, "threads", NULL, 0))
             av_dict_set(&ist->opts, "threads", "auto", 0);
         if ((ret = avcodec_open2(ist->st->codec, codec, &ist->opts)) < 0) {
-            char errbuf[128];
             if (ret == AVERROR_EXPERIMENTAL)
                 abort_codec_experimental(codec, 0);
 
-            av_strerror(ret, errbuf, sizeof(errbuf));
-
             snprintf(error, error_len,
                      "Error while opening decoder for input stream "
                      "#%d:%d : %s",
-                     ist->file_index, ist->st->index, errbuf);
+                     ist->file_index, ist->st->index, av_err2str(ret));
             return ret;
         }
         assert_avoptions(ist->opts);
     }
 
-    ist->last_dts = ist->st->avg_frame_rate.num ? - ist->st->codec->has_b_frames * AV_TIME_BASE / av_q2d(ist->st->avg_frame_rate) : 0;
+    ist->next_pts = AV_NOPTS_VALUE;
     ist->next_dts = AV_NOPTS_VALUE;
-    init_pts_correction(&ist->pts_ctx);
 
     return 0;
 }
@@ -1587,32 +2263,28 @@ static InputStream *get_input_stream(OutputStream *ost)
 {
     if (ost->source_index >= 0)
         return input_streams[ost->source_index];
-
-    if (ost->filter) {
-        FilterGraph *fg = ost->filter->graph;
-        int i;
-
-        for (i = 0; i < fg->nb_inputs; i++)
-            if (fg->inputs[i]->ist->st->codec->codec_type == ost->st->codec->codec_type)
-                return fg->inputs[i]->ist;
-    }
-
     return NULL;
 }
 
+static int compare_int64(const void *a, const void *b)
+{
+    int64_t va = *(int64_t *)a, vb = *(int64_t *)b;
+    return va < vb ? -1 : va > vb ? +1 : 0;
+}
+
 static void parse_forced_key_frames(char *kf, OutputStream *ost,
                                     AVCodecContext *avctx)
 {
     char *p;
-    int n = 1, i;
-    int64_t t;
+    int n = 1, i, size, index = 0;
+    int64_t t, *pts;
 
     for (p = kf; *p; p++)
         if (*p == ',')
             n++;
-    ost->forced_kf_count = n;
-    ost->forced_kf_pts   = av_malloc(sizeof(*ost->forced_kf_pts) * n);
-    if (!ost->forced_kf_pts) {
+    size = n;
+    pts = av_malloc(sizeof(*pts) * size);
+    if (!pts) {
         av_log(NULL, AV_LOG_FATAL, "Could not allocate forced key frames array.\n");
         exit_program(1);
     }
@@ -1624,11 +2296,58 @@ static void parse_forced_key_frames(char *kf, OutputStream *ost,
         if (next)
             *next++ = 0;
 
-        t = parse_time_or_die("force_key_frames", p, 1);
-        ost->forced_kf_pts[i] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
+        if (!memcmp(p, "chapters", 8)) {
+
+            AVFormatContext *avf = output_files[ost->file_index]->ctx;
+            int j;
+
+            if (avf->nb_chapters > INT_MAX - size ||
+                !(pts = av_realloc_f(pts, size += avf->nb_chapters - 1,
+                                     sizeof(*pts)))) {
+                av_log(NULL, AV_LOG_FATAL,
+                       "Could not allocate forced key frames array.\n");
+                exit_program(1);
+            }
+            t = p[8] ? parse_time_or_die("force_key_frames", p + 8, 1) : 0;
+            t = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
+
+            for (j = 0; j < avf->nb_chapters; j++) {
+                AVChapter *c = avf->chapters[j];
+                av_assert1(index < size);
+                pts[index++] = av_rescale_q(c->start, c->time_base,
+                                            avctx->time_base) + t;
+            }
+
+        } else {
+
+            t = parse_time_or_die("force_key_frames", p, 1);
+            av_assert1(index < size);
+            pts[index++] = av_rescale_q(t, AV_TIME_BASE_Q, avctx->time_base);
+
+        }
 
         p = next;
     }
+
+    av_assert0(index == size);
+    qsort(pts, size, sizeof(*pts), compare_int64);
+    ost->forced_kf_count = size;
+    ost->forced_kf_pts   = pts;
+}
+
+static void report_new_stream(int input_index, AVPacket *pkt)
+{
+    InputFile *file = input_files[input_index];
+    AVStream *st = file->ctx->streams[pkt->stream_index];
+
+    if (pkt->stream_index < file->nb_streams_warn)
+        return;
+    av_log(file->ctx, AV_LOG_WARNING,
+           "New %s stream %d:%d at pos:%"PRId64" and DTS:%ss\n",
+           av_get_media_type_string(st->codec->codec_type),
+           input_index, pkt->stream_index,
+           pkt->pos, av_ts2timestr(pkt->dts, &st->time_base));
+    file->nb_streams_warn = pkt->stream_index + 1;
 }
 
 static int transcode_init(void)
@@ -1641,6 +2360,21 @@ static int transcode_init(void)
     char error[1024];
     int want_sdp = 1;
 
+    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->ost || ofilter->ost->source_index >= 0)
+                continue;
+            if (fg->nb_inputs != 1)
+                continue;
+            for (k = nb_input_streams-1; k >= 0 ; k--)
+                if (fg->inputs[0]->ist == input_streams[k])
+                    break;
+            ofilter->ost->source_index = k;
+        }
+    }
+
     /* init framerate emulation */
     for (i = 0; i < nb_input_files; i++) {
         InputFile *ifile = input_files[i];
@@ -1682,6 +2416,15 @@ static int transcode_init(void)
             ost->st->disposition          = ist->st->disposition;
             codec->bits_per_raw_sample    = icodec->bits_per_raw_sample;
             codec->chroma_sample_location = icodec->chroma_sample_location;
+        } else {
+            for (j=0; j<oc->nb_streams; j++) {
+                AVStream *st = oc->streams[j];
+                if (st != ost->st && st->codec->codec_type == codec->codec_type)
+                    break;
+            }
+            if (j == oc->nb_streams)
+                if (codec->codec_type == AVMEDIA_TYPE_AUDIO || codec->codec_type == AVMEDIA_TYPE_VIDEO)
+                    ost->st->disposition = AV_DISPOSITION_DEFAULT;
         }
 
         if (ost->stream_copy) {
@@ -1701,9 +2444,10 @@ static int transcode_init(void)
             codec->codec_type = icodec->codec_type;
 
             if (!codec->codec_tag) {
+                unsigned int codec_tag;
                 if (!oc->oformat->codec_tag ||
                      av_codec_get_id (oc->oformat->codec_tag, icodec->codec_tag) == codec->codec_id ||
-                     av_codec_get_tag(oc->oformat->codec_tag, icodec->codec_id) <= 0)
+                     !av_codec_get_tag2(oc->oformat->codec_tag, icodec->codec_id, &codec_tag))
                     codec->codec_tag = icodec->codec_tag;
             }
 
@@ -1716,14 +2460,59 @@ static int transcode_init(void)
                 return AVERROR(ENOMEM);
             }
             memcpy(codec->extradata, icodec->extradata, icodec->extradata_size);
-            codec->extradata_size = icodec->extradata_size;
-            if (!copy_tb) {
-                codec->time_base      = icodec->time_base;
-                codec->time_base.num *= icodec->ticks_per_frame;
-                av_reduce(&codec->time_base.num, &codec->time_base.den,
-                          codec->time_base.num, codec->time_base.den, INT_MAX);
-            } else
-                codec->time_base = ist->st->time_base;
+            codec->extradata_size= icodec->extradata_size;
+            codec->bits_per_coded_sample  = icodec->bits_per_coded_sample;
+
+            codec->time_base = ist->st->time_base;
+            /*
+             * Avi is a special case here because it supports variable fps but
+             * having the fps and timebase differe significantly adds quite some
+             * overhead
+             */
+            if(!strcmp(oc->oformat->name, "avi")) {
+                if ( copy_tb<0 && av_q2d(ist->st->r_frame_rate) >= av_q2d(ist->st->avg_frame_rate)
+                               && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(ist->st->time_base)
+                               && 0.5/av_q2d(ist->st->r_frame_rate) > av_q2d(icodec->time_base)
+                               && av_q2d(ist->st->time_base) < 1.0/500 && av_q2d(icodec->time_base) < 1.0/500
+                     || copy_tb==2){
+                    codec->time_base.num = ist->st->r_frame_rate.den;
+                    codec->time_base.den = 2*ist->st->r_frame_rate.num;
+                    codec->ticks_per_frame = 2;
+                } else if (   copy_tb<0 && av_q2d(icodec->time_base)*icodec->ticks_per_frame > 2*av_q2d(ist->st->time_base)
+                                 && av_q2d(ist->st->time_base) < 1.0/500
+                    || copy_tb==0){
+                    codec->time_base = icodec->time_base;
+                    codec->time_base.num *= icodec->ticks_per_frame;
+                    codec->time_base.den *= 2;
+                    codec->ticks_per_frame = 2;
+                }
+            } else if(!(oc->oformat->flags & AVFMT_VARIABLE_FPS)
+                      && strcmp(oc->oformat->name, "mov") && strcmp(oc->oformat->name, "mp4") && strcmp(oc->oformat->name, "3gp")
+                      && strcmp(oc->oformat->name, "3g2") && strcmp(oc->oformat->name, "psp") && strcmp(oc->oformat->name, "ipod")
+                      && strcmp(oc->oformat->name, "f4v")
+            ) {
+                if(   copy_tb<0 && icodec->time_base.den
+                                && av_q2d(icodec->time_base)*icodec->ticks_per_frame > av_q2d(ist->st->time_base)
+                                && av_q2d(ist->st->time_base) < 1.0/500
+                   || copy_tb==0){
+                    codec->time_base = icodec->time_base;
+                    codec->time_base.num *= icodec->ticks_per_frame;
+                }
+            }
+            if (   codec->codec_tag == AV_RL32("tmcd")
+                && icodec->time_base.num < icodec->time_base.den
+                && icodec->time_base.num > 0
+                && 121LL*icodec->time_base.num > icodec->time_base.den) {
+                codec->time_base = icodec->time_base;
+            }
+
+            if (ist && !ost->frame_rate.num)
+                ost->frame_rate = ist->framerate;
+            if(ost->frame_rate.num)
+                codec->time_base = av_inv_q(ost->frame_rate);
+
+            av_reduce(&codec->time_base.num, &codec->time_base.den,
+                        codec->time_base.num, codec->time_base.den, INT_MAX);
 
             ost->parser = av_parser_init(codec->codec_id);
 
@@ -1739,19 +2528,30 @@ static int transcode_init(void)
                 codec->frame_size         = icodec->frame_size;
                 codec->audio_service_type = icodec->audio_service_type;
                 codec->block_align        = icodec->block_align;
+                codec->delay              = icodec->delay;
+                if((codec->block_align == 1 || codec->block_align == 1152 || codec->block_align == 576) && codec->codec_id == AV_CODEC_ID_MP3)
+                    codec->block_align= 0;
+                if(codec->codec_id == AV_CODEC_ID_AC3)
+                    codec->block_align= 0;
                 break;
             case AVMEDIA_TYPE_VIDEO:
                 codec->pix_fmt            = icodec->pix_fmt;
                 codec->width              = icodec->width;
                 codec->height             = icodec->height;
                 codec->has_b_frames       = icodec->has_b_frames;
-                if (ost->frame_aspect_ratio)
-                    sar = av_d2q(ost->frame_aspect_ratio * codec->height / codec->width, 255);
+                if (ost->frame_aspect_ratio.num) { // overridden by the -aspect cli option
+                    sar =
+                        av_mul_q(ost->frame_aspect_ratio,
+                                 (AVRational){ codec->height, codec->width });
+                    av_log(NULL, AV_LOG_WARNING, "Overriding aspect ratio "
+                           "with stream copy may produce invalid files\n");
+                }
                 else if (ist->st->sample_aspect_ratio.num)
                     sar = ist->st->sample_aspect_ratio;
                 else
                     sar = icodec->sample_aspect_ratio;
                 ost->st->sample_aspect_ratio = codec->sample_aspect_ratio = sar;
+                ost->st->avg_frame_rate = ist->st->avg_frame_rate;
                 break;
             case AVMEDIA_TYPE_SUBTITLE:
                 codec->width  = icodec->width;
@@ -1764,55 +2564,20 @@ static int transcode_init(void)
                 abort();
             }
         } else {
+            if (!ost->enc)
+                ost->enc = avcodec_find_encoder(codec->codec_id);
             if (!ost->enc) {
                 /* should only happen when a default codec is not present. */
-                snprintf(error, sizeof(error), "Automatic encoder selection "
-                         "failed for output stream #%d:%d. Default encoder for "
-                         "format %s is probably disabled. Please choose an "
-                         "encoder manually.\n", ost->file_index, ost->index,
-                         oc->oformat->name);
+                snprintf(error, sizeof(error), "Encoder (codec %s) not found for output stream #%d:%d",
+                         avcodec_get_name(ost->st->codec->codec_id), ost->file_index, ost->index);
                 ret = AVERROR(EINVAL);
                 goto dump_format;
             }
 
             if (ist)
-                ist->decoding_needed = 1;
+                ist->decoding_needed++;
             ost->encoding_needed = 1;
 
-            /*
-             * We want CFR output if and only if one of those is true:
-             * 1) user specified output framerate with -r
-             * 2) user specified -vsync cfr
-             * 3) output format is CFR and the user didn't force vsync to
-             *    something else than CFR
-             *
-             * in such a case, set ost->frame_rate
-             */
-            if (codec->codec_type == AVMEDIA_TYPE_VIDEO &&
-                !ost->frame_rate.num && ist &&
-                (video_sync_method ==  VSYNC_CFR ||
-                 (video_sync_method ==  VSYNC_AUTO &&
-                  !(oc->oformat->flags & (AVFMT_NOTIMESTAMPS | AVFMT_VARIABLE_FPS))))) {
-                if (ist->framerate.num)
-                    ost->frame_rate = ist->framerate;
-                else if (ist->st->avg_frame_rate.num)
-                    ost->frame_rate = ist->st->avg_frame_rate;
-                else {
-                    av_log(NULL, AV_LOG_WARNING, "Constant framerate requested "
-                           "for the output stream #%d:%d, but no information "
-                           "about the input framerate is available. Falling "
-                           "back to a default value of 25fps. Use the -r option "
-                           "if you want a different framerate.\n",
-                           ost->file_index, ost->index);
-                    ost->frame_rate = (AVRational){ 25, 1 };
-                }
-
-                if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
-                    int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
-                    ost->frame_rate = ost->enc->supported_framerates[idx];
-                }
-            }
-
             if (!ost->filter &&
                 (codec->codec_type == AVMEDIA_TYPE_VIDEO ||
                  codec->codec_type == AVMEDIA_TYPE_AUDIO)) {
@@ -1824,45 +2589,115 @@ static int transcode_init(void)
                     }
             }
 
+            if (codec->codec_type == AVMEDIA_TYPE_VIDEO) {
+                if (ost->filter && !ost->frame_rate.num)
+                    ost->frame_rate = av_buffersink_get_frame_rate(ost->filter->filter);
+                if (ist && !ost->frame_rate.num)
+                    ost->frame_rate = ist->framerate;
+                if (ist && !ost->frame_rate.num)
+                    ost->frame_rate = ist->st->r_frame_rate;
+                if (ist && !ost->frame_rate.num) {
+                    ost->frame_rate = (AVRational){25, 1};
+                    av_log(NULL, AV_LOG_WARNING,
+                           "No information "
+                           "about the input framerate is available. Falling "
+                           "back to a default value of 25fps for output stream #%d:%d. Use the -r option "
+                           "if you want a different framerate.\n",
+                           ost->file_index, ost->index);
+                }
+//                    ost->frame_rate = ist->st->avg_frame_rate.num ? ist->st->avg_frame_rate : (AVRational){25, 1};
+                if (ost->enc && ost->enc->supported_framerates && !ost->force_fps) {
+                    int idx = av_find_nearest_q_idx(ost->frame_rate, ost->enc->supported_framerates);
+                    ost->frame_rate = ost->enc->supported_framerates[idx];
+                }
+                if (codec->codec_id == AV_CODEC_ID_MPEG4) {
+                    av_reduce(&ost->frame_rate.num, &ost->frame_rate.den,
+                              ost->frame_rate.num, ost->frame_rate.den, 65535);
+                }
+            }
+
             switch (codec->codec_type) {
             case AVMEDIA_TYPE_AUDIO:
                 codec->sample_fmt     = ost->filter->filter->inputs[0]->format;
                 codec->sample_rate    = ost->filter->filter->inputs[0]->sample_rate;
                 codec->channel_layout = ost->filter->filter->inputs[0]->channel_layout;
-                codec->channels       = av_get_channel_layout_nb_channels(codec->channel_layout);
+                codec->channels       = avfilter_link_get_channels(ost->filter->filter->inputs[0]);
                 codec->time_base      = (AVRational){ 1, codec->sample_rate };
                 break;
             case AVMEDIA_TYPE_VIDEO:
-                codec->time_base = ost->filter->filter->inputs[0]->time_base;
+                codec->time_base = av_inv_q(ost->frame_rate);
+                if (ost->filter && !(codec->time_base.num && codec->time_base.den))
+                    codec->time_base = ost->filter->filter->inputs[0]->time_base;
+                if (   av_q2d(codec->time_base) < 0.001 && video_sync_method != VSYNC_PASSTHROUGH
+                   && (video_sync_method == VSYNC_CFR || video_sync_method == VSYNC_VSCFR || (video_sync_method == VSYNC_AUTO && !(oc->oformat->flags & AVFMT_VARIABLE_FPS)))){
+                    av_log(oc, AV_LOG_WARNING, "Frame rate very high for a muxer not efficiently supporting it.\n"
+                                               "Please consider specifying a lower framerate, a different muxer or -vsync 2\n");
+                }
+                for (j = 0; j < ost->forced_kf_count; j++)
+                    ost->forced_kf_pts[j] = av_rescale_q(ost->forced_kf_pts[j],
+                                                         AV_TIME_BASE_Q,
+                                                         codec->time_base);
 
                 codec->width  = ost->filter->filter->inputs[0]->w;
                 codec->height = ost->filter->filter->inputs[0]->h;
                 codec->sample_aspect_ratio = ost->st->sample_aspect_ratio =
-                    ost->frame_aspect_ratio ? // overridden by the -aspect cli option
-                    av_d2q(ost->frame_aspect_ratio * codec->height/codec->width, 255) :
+                    ost->frame_aspect_ratio.num ? // overridden by the -aspect cli option
+                    av_mul_q(ost->frame_aspect_ratio, (AVRational){ codec->height, codec->width }) :
                     ost->filter->filter->inputs[0]->sample_aspect_ratio;
+                if (!strncmp(ost->enc->name, "libx264", 7) &&
+                    codec->pix_fmt == AV_PIX_FMT_NONE &&
+                    ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
+                    av_log(NULL, AV_LOG_WARNING,
+                           "No pixel format specified, %s for H.264 encoding chosen.\n"
+                           "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
+                           av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
+                if (!strncmp(ost->enc->name, "mpeg2video", 10) &&
+                    codec->pix_fmt == AV_PIX_FMT_NONE &&
+                    ost->filter->filter->inputs[0]->format != AV_PIX_FMT_YUV420P)
+                    av_log(NULL, AV_LOG_WARNING,
+                           "No pixel format specified, %s for MPEG-2 encoding chosen.\n"
+                           "Use -pix_fmt yuv420p for compatibility with outdated media players.\n",
+                           av_get_pix_fmt_name(ost->filter->filter->inputs[0]->format));
                 codec->pix_fmt = ost->filter->filter->inputs[0]->format;
 
-                if (icodec &&
-                    (codec->width   != icodec->width  ||
-                     codec->height  != icodec->height ||
-                     codec->pix_fmt != icodec->pix_fmt)) {
-                    codec->bits_per_raw_sample = 0;
+                if (!icodec ||
+                    codec->width   != icodec->width  ||
+                    codec->height  != icodec->height ||
+                    codec->pix_fmt != icodec->pix_fmt) {
+                    codec->bits_per_raw_sample = frame_bits_per_raw_sample;
                 }
 
-                if (ost->forced_keyframes)
-                    parse_forced_key_frames(ost->forced_keyframes, ost,
-                                            ost->st->codec);
+                if (ost->forced_keyframes) {
+                    if (!strncmp(ost->forced_keyframes, "expr:", 5)) {
+                        ret = av_expr_parse(&ost->forced_keyframes_pexpr, ost->forced_keyframes+5,
+                                            forced_keyframes_const_names, NULL, NULL, NULL, NULL, 0, NULL);
+                        if (ret < 0) {
+                            av_log(NULL, AV_LOG_ERROR,
+                                   "Invalid force_key_frames expression '%s'\n", ost->forced_keyframes+5);
+                            return ret;
+                        }
+                        ost->forced_keyframes_expr_const_values[FKF_N] = 0;
+                        ost->forced_keyframes_expr_const_values[FKF_N_FORCED] = 0;
+                        ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_N] = NAN;
+                        ost->forced_keyframes_expr_const_values[FKF_PREV_FORCED_T] = NAN;
+                    } else {
+                        parse_forced_key_frames(ost->forced_keyframes, ost, ost->st->codec);
+                    }
+                }
                 break;
             case AVMEDIA_TYPE_SUBTITLE:
                 codec->time_base = (AVRational){1, 1000};
+                if (!codec->width) {
+                    codec->width     = input_streams[ost->source_index]->st->codec->width;
+                    codec->height    = input_streams[ost->source_index]->st->codec->height;
+                }
                 break;
             default:
                 abort();
                 break;
             }
             /* two pass mode */
-            if ((codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2))) {
+            if (codec->flags & (CODEC_FLAG_PASS1 | CODEC_FLAG_PASS2)) {
                 char logfilename[1024];
                 FILE *f;
 
@@ -1873,15 +2708,7 @@ static int transcode_init(void)
                 if (!strcmp(ost->enc->name, "libx264")) {
                     av_dict_set(&ost->opts, "stats", logfilename, AV_DICT_DONT_OVERWRITE);
                 } else {
-                    if (codec->flags & CODEC_FLAG_PASS1) {
-                        f = fopen(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;
-                    } else {
+                    if (codec->flags & CODEC_FLAG_PASS2) {
                         char  *logbuffer;
                         size_t logbuffer_size;
                         if (cmdutils_read_file(logfilename, &logbuffer, &logbuffer_size) < 0) {
@@ -1891,6 +2718,15 @@ static int transcode_init(void)
                         }
                         codec->stats_in = logbuffer;
                     }
+                    if (codec->flags & 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;
+                    }
                 }
             }
         }
@@ -1906,7 +2742,8 @@ static int transcode_init(void)
             if ((ist = get_input_stream(ost)))
                 dec = ist->st->codec;
             if (dec && dec->subtitle_header) {
-                ost->st->codec->subtitle_header = av_malloc(dec->subtitle_header_size);
+                /* ASS code assumes this buffer is null terminated so add extra byte. */
+                ost->st->codec->subtitle_header = av_mallocz(dec->subtitle_header_size + 1);
                 if (!ost->st->codec->subtitle_header) {
                     ret = AVERROR(ENOMEM);
                     goto dump_format;
@@ -1923,10 +2760,14 @@ static int transcode_init(void)
                         ost->file_index, ost->index);
                 goto dump_format;
             }
+            if (ost->enc->type == AVMEDIA_TYPE_AUDIO &&
+                !(ost->enc->capabilities & CODEC_CAP_VARIABLE_FRAME_SIZE))
+                av_buffersink_set_frame_size(ost->filter->filter,
+                                             ost->st->codec->frame_size);
             assert_avoptions(ost->opts);
             if (ost->st->codec->bit_rate && ost->st->codec->bit_rate < 1000)
                 av_log(NULL, AV_LOG_WARNING, "The bitrate parameter is set too low."
-                                             "It takes bits/s as argument, not kbits/s\n");
+                                             " It takes bits/s as argument, not kbits/s\n");
         } else {
             av_opt_set_dict(ost->st->codec, &ost->opts);
         }
@@ -1934,8 +2775,13 @@ static int transcode_init(void)
 
     /* init input streams */
     for (i = 0; i < nb_input_streams; i++)
-        if ((ret = init_input_stream(i, error, sizeof(error))) < 0)
+        if ((ret = init_input_stream(i, error, sizeof(error))) < 0) {
+            for (i = 0; i < nb_output_streams; i++) {
+                ost = output_streams[i];
+                avcodec_close(ost->st->codec);
+            }
             goto dump_format;
+        }
 
     /* discard unused programs */
     for (i = 0; i < nb_input_files; i++) {
@@ -1958,16 +2804,14 @@ static int transcode_init(void)
         oc = output_files[i]->ctx;
         oc->interrupt_callback = int_cb;
         if ((ret = avformat_write_header(oc, &output_files[i]->opts)) < 0) {
-            char errbuf[128];
-            av_strerror(ret, errbuf, sizeof(errbuf));
             snprintf(error, sizeof(error),
                      "Could not write header for output file #%d "
                      "(incorrect codec parameters ?): %s",
-                     i, errbuf);
+                     i, av_err2str(ret));
             ret = AVERROR(EINVAL);
             goto dump_format;
         }
-        assert_avoptions(output_files[i]->opts);
+//         assert_avoptions(output_files[i]->opts);
         if (strcmp(oc->oformat->name, "rtp")) {
             want_sdp = 0;
         }
@@ -2064,7 +2908,7 @@ static int need_output(void)
         if (ost->frame_number >= ost->max_frames) {
             int j;
             for (j = 0; j < of->ctx->nb_streams; j++)
-                output_streams[of->ost_index + j]->finished = 1;
+                close_output_stream(output_streams[of->ost_index + j]);
             continue;
         }
 
@@ -2074,27 +2918,124 @@ static int need_output(void)
     return 0;
 }
 
-static InputFile *select_input_file(void)
+/**
+ * Select the output stream to process.
+ *
+ * @return  selected output stream, or NULL if none available
+ */
+static OutputStream *choose_output(void)
 {
-    InputFile *ifile = NULL;
-    int64_t ipts_min = INT64_MAX;
     int i;
+    int64_t opts_min = INT64_MAX;
+    OutputStream *ost_min = NULL;
 
-    for (i = 0; i < nb_input_streams; i++) {
-        InputStream *ist = input_streams[i];
-        int64_t ipts     = ist->last_dts;
+    for (i = 0; i < nb_output_streams; i++) {
+        OutputStream *ost = output_streams[i];
+        int64_t opts = av_rescale_q(ost->st->cur_dts, ost->st->time_base,
+                                    AV_TIME_BASE_Q);
+        if (!ost->unavailable && !ost->finished && opts < opts_min) {
+            opts_min = opts;
+            ost_min  = ost;
+        }
+    }
+    return ost_min;
+}
 
-        if (ist->discard || input_files[ist->file_index]->eagain)
-            continue;
-        if (!input_files[ist->file_index]->eof_reached) {
-            if (ipts < ipts_min) {
-                ipts_min = ipts;
-                ifile    = input_files[ist->file_index];
+static int check_keyboard_interaction(int64_t cur_time)
+{
+    int i, ret, key;
+    static int64_t last_time;
+    if (received_nb_signals)
+        return AVERROR_EXIT;
+    /* read_key() returns 0 on EOF */
+    if(cur_time - last_time >= 100000 && !run_as_daemon){
+        key =  read_key();
+        last_time = cur_time;
+    }else
+        key = -1;
+    if (key == 'q')
+        return AVERROR_EXIT;
+    if (key == '+') av_log_set_level(av_log_get_level()+10);
+    if (key == '-') av_log_set_level(av_log_get_level()-10);
+    if (key == 's') qp_hist     ^= 1;
+    if (key == 'h'){
+        if (do_hex_dump){
+            do_hex_dump = do_pkt_dump = 0;
+        } else if(do_pkt_dump){
+            do_hex_dump = 1;
+        } else
+            do_pkt_dump = 1;
+        av_log_set_level(AV_LOG_DEBUG);
+    }
+    if (key == 'c' || key == 'C'){
+        char buf[4096], target[64], command[256], arg[256] = {0};
+        double time;
+        int k, n = 0;
+        fprintf(stderr, "\nEnter command: <target>|all <time>|-1 <command>[ <argument>]\n");
+        i = 0;
+        while ((k = read_key()) != '\n' && k != '\r' && i < sizeof(buf)-1)
+            if (k > 0)
+                buf[i++] = k;
+        buf[i] = 0;
+        if (k > 0 &&
+            (n = sscanf(buf, "%63[^ ] %lf %255[^ ] %255[^\n]", target, &time, command, arg)) >= 3) {
+            av_log(NULL, AV_LOG_DEBUG, "Processing command target:%s time:%f command:%s arg:%s",
+                   target, time, command, arg);
+            for (i = 0; i < nb_filtergraphs; i++) {
+                FilterGraph *fg = filtergraphs[i];
+                if (fg->graph) {
+                    if (time < 0) {
+                        ret = avfilter_graph_send_command(fg->graph, target, command, arg, buf, sizeof(buf),
+                                                          key == 'c' ? AVFILTER_CMD_FLAG_ONE : 0);
+                        fprintf(stderr, "Command reply for stream %d: ret:%d res:\n%s", i, ret, buf);
+                    } else if (key == 'c') {
+                        fprintf(stderr, "Queing commands only on filters supporting the specific command is unsupported\n");
+                        ret = AVERROR_PATCHWELCOME;
+                    } else {
+                        ret = avfilter_graph_queue_command(fg->graph, target, command, arg, 0, time);
+                    }
+                }
             }
+        } else {
+            av_log(NULL, AV_LOG_ERROR,
+                   "Parse error, at least 3 arguments were expected, "
+                   "only %d given in string '%s'\n", n, buf);
         }
     }
-
-    return ifile;
+    if (key == 'd' || key == 'D'){
+        int debug=0;
+        if(key == 'D') {
+            debug = input_streams[0]->st->codec->debug<<1;
+            if(!debug) debug = 1;
+            while(debug & (FF_DEBUG_DCT_COEFF|FF_DEBUG_VIS_QP|FF_DEBUG_VIS_MB_TYPE)) //unsupported, would just crash
+                debug += debug;
+        }else
+            if(scanf("%d", &debug)!=1)
+                fprintf(stderr,"error parsing debug value\n");
+        for(i=0;i<nb_input_streams;i++) {
+            input_streams[i]->st->codec->debug = debug;
+        }
+        for(i=0;i<nb_output_streams;i++) {
+            OutputStream *ost = output_streams[i];
+            ost->st->codec->debug = debug;
+        }
+        if(debug) av_log_set_level(AV_LOG_DEBUG);
+        fprintf(stderr,"debug=%d\n", debug);
+    }
+    if (key == '?'){
+        fprintf(stderr, "key    function\n"
+                        "?      show this help\n"
+                        "+      increase verbosity\n"
+                        "-      decrease verbosity\n"
+                        "c      Send command to first matching filter supporting it\n"
+                        "C      Send/Que command to all matching filters\n"
+                        "D      cycle through available debug modes\n"
+                        "h      dump packets/hex press to cycle through the 3 states\n"
+                        "q      quit\n"
+                        "s      Show QP histogram\n"
+        );
+    }
+    return 0;
 }
 
 #if HAVE_PTHREADS
@@ -2120,11 +3061,15 @@ static void *input_thread(void *arg)
 
         av_dup_packet(&pkt);
         av_fifo_generic_write(f->fifo, &pkt, sizeof(pkt), NULL);
+        pthread_cond_signal(&f->fifo_cond);
 
         pthread_mutex_unlock(&f->fifo_lock);
     }
 
+    pthread_mutex_lock(&f->fifo_lock);
     f->finished = 1;
+    pthread_cond_signal(&f->fifo_cond);
+    pthread_mutex_unlock(&f->fifo_lock);
     return NULL;
 }
 
@@ -2176,6 +3121,10 @@ static int init_input_threads(void)
         if (!(f->fifo = av_fifo_alloc(8*sizeof(AVPacket))))
             return AVERROR(ENOMEM);
 
+        if (f->ctx->pb ? !f->ctx->pb->seekable :
+            strcmp(f->ctx->iformat->name, "lavfi"))
+            f->non_blocking = 1;
+
         pthread_mutex_init(&f->fifo_lock, NULL);
         pthread_cond_init (&f->fifo_cond, NULL);
 
@@ -2191,14 +3140,22 @@ static int get_input_packet_mt(InputFile *f, AVPacket *pkt)
 
     pthread_mutex_lock(&f->fifo_lock);
 
+    while (1) {
     if (av_fifo_size(f->fifo)) {
         av_fifo_generic_read(f->fifo, pkt, sizeof(*pkt), NULL);
         pthread_cond_signal(&f->fifo_cond);
+        break;
     } else {
-        if (f->finished)
+        if (f->finished) {
             ret = AVERROR_EOF;
-        else
+            break;
+        }
+        if (f->non_blocking) {
             ret = AVERROR(EAGAIN);
+            break;
+        }
+        pthread_cond_wait(&f->fifo_cond, &f->fifo_lock);
+    }
     }
 
     pthread_mutex_unlock(&f->fifo_lock);
@@ -2213,7 +3170,7 @@ static int get_input_packet(InputFile *f, AVPacket *pkt)
         int i;
         for (i = 0; i < f->nb_streams; i++) {
             InputStream *ist = input_streams[f->ist_index + i];
-            int64_t pts = av_rescale(ist->last_dts, 1000000, AV_TIME_BASE);
+            int64_t pts = av_rescale(ist->dts, 1000000, AV_TIME_BASE);
             int64_t now = av_gettime() - ist->start;
             if (pts > now)
                 return AVERROR(EAGAIN);
@@ -2230,8 +3187,8 @@ static int get_input_packet(InputFile *f, AVPacket *pkt)
 static int got_eagain(void)
 {
     int i;
-    for (i = 0; i < nb_input_files; i++)
-        if (input_files[i]->eagain)
+    for (i = 0; i < nb_output_streams; i++)
+        if (output_streams[i]->unavailable)
             return 1;
     return 0;
 }
@@ -2241,41 +3198,25 @@ static void reset_eagain(void)
     int i;
     for (i = 0; i < nb_input_files; i++)
         input_files[i]->eagain = 0;
+    for (i = 0; i < nb_output_streams; i++)
+        output_streams[i]->unavailable = 0;
 }
 
 /*
- * Read one packet from an input file and send it for
- * - decoding -> lavfi (audio/video)
- * - decoding -> encoding -> muxing (subtitles)
- * - muxing (streamcopy)
- *
  * Return
  * - 0 -- one packet was read and processed
  * - AVERROR(EAGAIN) -- no packets were available for selected file,
  *   this function should be called again
  * - AVERROR_EOF -- this function should not be called again
  */
-static int process_input(void)
+static int process_input(int file_index)
 {
-    InputFile *ifile;
+    InputFile *ifile = input_files[file_index];
     AVFormatContext *is;
     InputStream *ist;
     AVPacket pkt;
     int ret, i, j;
 
-    /* select the stream that we must read now */
-    ifile = select_input_file();
-    /* if none, if is finished */
-    if (!ifile) {
-        if (got_eagain()) {
-            reset_eagain();
-            av_usleep(10000);
-            return AVERROR(EAGAIN);
-        }
-        av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from.\n");
-        return AVERROR_EOF;
-    }
-
     is  = ifile->ctx;
     ret = get_input_packet(ifile, &pkt);
 
@@ -2302,7 +3243,7 @@ static int process_input(void)
 
                 if (ost->source_index == ifile->ist_index + i &&
                     (ost->stream_copy || ost->enc->type == AVMEDIA_TYPE_SUBTITLE))
-                    ost->finished= 1;
+                    close_output_stream(ost);
             }
         }
 
@@ -2317,8 +3258,10 @@ static int process_input(void)
     }
     /* the following test is needed in case new streams appear
        dynamically in stream : we ignore them */
-    if (pkt.stream_index >= ifile->nb_streams)
+    if (pkt.stream_index >= ifile->nb_streams) {
+        report_new_stream(file_index, &pkt);
         goto discard_packet;
+    }
 
     ist = input_streams[ifile->ist_index + pkt.stream_index];
 
@@ -2328,6 +3271,53 @@ static int process_input(void)
     if (ist->discard)
         goto discard_packet;
 
+    if (debug_ts) {
+        av_log(NULL, AV_LOG_INFO, "demuxer -> ist_index:%d type:%s "
+               "next_dts:%s next_dts_time:%s next_pts:%s next_pts_time:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%s off_time:%s\n",
+               ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
+               av_ts2str(ist->next_dts), av_ts2timestr(ist->next_dts, &AV_TIME_BASE_Q),
+               av_ts2str(ist->next_pts), av_ts2timestr(ist->next_pts, &AV_TIME_BASE_Q),
+               av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
+               av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
+               av_ts2str(input_files[ist->file_index]->ts_offset),
+               av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
+    }
+
+    if(!ist->wrap_correction_done && is->start_time != AV_NOPTS_VALUE && ist->st->pts_wrap_bits < 64){
+        int64_t stime, stime2;
+        // Correcting starttime based on the enabled streams
+        // FIXME this ideally should be done before the first use of starttime but we do not know which are the enabled streams at that point.
+        //       so we instead do it here as part of discontinuity handling
+        if (   ist->next_dts == AV_NOPTS_VALUE
+            && ifile->ts_offset == -is->start_time
+            && (is->iformat->flags & AVFMT_TS_DISCONT)) {
+            int64_t new_start_time = INT64_MAX;
+            for (i=0; i<is->nb_streams; i++) {
+                AVStream *st = is->streams[i];
+                if(st->discard == AVDISCARD_ALL || st->start_time == AV_NOPTS_VALUE)
+                    continue;
+                new_start_time = FFMIN(new_start_time, av_rescale_q(st->start_time, st->time_base, AV_TIME_BASE_Q));
+            }
+            if (new_start_time > is->start_time) {
+                av_log(is, AV_LOG_VERBOSE, "Correcting start time by %"PRId64"\n", new_start_time - is->start_time);
+                ifile->ts_offset = -new_start_time;
+            }
+        }
+
+        stime = av_rescale_q(is->start_time, AV_TIME_BASE_Q, ist->st->time_base);
+        stime2= stime + (1ULL<<ist->st->pts_wrap_bits);
+        ist->wrap_correction_done = 1;
+
+        if(stime2 > stime && pkt.dts != AV_NOPTS_VALUE && pkt.dts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
+            pkt.dts -= 1ULL<<ist->st->pts_wrap_bits;
+            ist->wrap_correction_done = 0;
+        }
+        if(stime2 > stime && pkt.pts != AV_NOPTS_VALUE && pkt.pts > stime + (1LL<<(ist->st->pts_wrap_bits-1))) {
+            pkt.pts -= 1ULL<<ist->st->pts_wrap_bits;
+            ist->wrap_correction_done = 0;
+        }
+    }
+
     /* add the stream-global side data to the first packet */
     if (ist->nb_packets == 1)
         for (i = 0; i < ist->st->nb_side_data; i++) {
@@ -2354,15 +3344,16 @@ static int process_input(void)
     if (pkt.dts != AV_NOPTS_VALUE)
         pkt.dts *= ist->ts_scale;
 
-    if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
-        (is->iformat->flags & AVFMT_TS_DISCONT)) {
+    if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts == AV_NOPTS_VALUE && !copy_ts
+        && (is->iformat->flags & AVFMT_TS_DISCONT) && ifile->last_ts != AV_NOPTS_VALUE) {
         int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
-        int64_t delta   = pkt_dts - ist->next_dts;
-
-        if ((FFABS(delta) > 1LL * dts_delta_threshold * AV_TIME_BASE || pkt_dts + 1 < ist->last_dts) && !copy_ts) {
+        int64_t delta   = pkt_dts - ifile->last_ts;
+        if(delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
+            (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
+                ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)){
             ifile->ts_offset -= delta;
             av_log(NULL, AV_LOG_DEBUG,
-                   "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
+                   "Inter stream timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
                    delta, ifile->ts_offset);
             pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
             if (pkt.pts != AV_NOPTS_VALUE)
@@ -2370,10 +3361,59 @@ static int process_input(void)
         }
     }
 
+    if (pkt.dts != AV_NOPTS_VALUE && ist->next_dts != AV_NOPTS_VALUE &&
+        !copy_ts) {
+        int64_t pkt_dts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
+        int64_t delta   = pkt_dts - ist->next_dts;
+        if (is->iformat->flags & AVFMT_TS_DISCONT) {
+            if (delta < -1LL*dts_delta_threshold*AV_TIME_BASE ||
+                (delta > 1LL*dts_delta_threshold*AV_TIME_BASE &&
+                 ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE) ||
+                pkt_dts + AV_TIME_BASE/10 < FFMAX(ist->pts, ist->dts)) {
+                ifile->ts_offset -= delta;
+                av_log(NULL, AV_LOG_DEBUG,
+                       "timestamp discontinuity %"PRId64", new offset= %"PRId64"\n",
+                       delta, ifile->ts_offset);
+                pkt.dts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
+                if (pkt.pts != AV_NOPTS_VALUE)
+                    pkt.pts -= av_rescale_q(delta, AV_TIME_BASE_Q, ist->st->time_base);
+            }
+        } else {
+            if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
+                (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)) {
+                av_log(NULL, AV_LOG_WARNING, "DTS %"PRId64", next:%"PRId64" st:%d invalid dropping\n", pkt.dts, ist->next_dts, pkt.stream_index);
+                pkt.dts = AV_NOPTS_VALUE;
+            }
+            if (pkt.pts != AV_NOPTS_VALUE){
+                int64_t pkt_pts = av_rescale_q(pkt.pts, ist->st->time_base, AV_TIME_BASE_Q);
+                delta   = pkt_pts - ist->next_dts;
+                if ( delta < -1LL*dts_error_threshold*AV_TIME_BASE ||
+                    (delta > 1LL*dts_error_threshold*AV_TIME_BASE && ist->st->codec->codec_type != AVMEDIA_TYPE_SUBTITLE)) {
+                    av_log(NULL, AV_LOG_WARNING, "PTS %"PRId64", next:%"PRId64" invalid dropping st:%d\n", pkt.pts, ist->next_dts, pkt.stream_index);
+                    pkt.pts = AV_NOPTS_VALUE;
+                }
+            }
+        }
+    }
+
+    if (pkt.dts != AV_NOPTS_VALUE)
+        ifile->last_ts = av_rescale_q(pkt.dts, ist->st->time_base, AV_TIME_BASE_Q);
+
+    if (debug_ts) {
+        av_log(NULL, AV_LOG_INFO, "demuxer+ffmpeg -> ist_index:%d type:%s pkt_pts:%s pkt_pts_time:%s pkt_dts:%s pkt_dts_time:%s off:%s off_time:%s\n",
+               ifile->ist_index + pkt.stream_index, av_get_media_type_string(ist->st->codec->codec_type),
+               av_ts2str(pkt.pts), av_ts2timestr(pkt.pts, &ist->st->time_base),
+               av_ts2str(pkt.dts), av_ts2timestr(pkt.dts, &ist->st->time_base),
+               av_ts2str(input_files[ist->file_index]->ts_offset),
+               av_ts2timestr(input_files[ist->file_index]->ts_offset, &AV_TIME_BASE_Q));
+    }
+
+    sub2video_heartbeat(ist, pkt.pts);
+
     ret = output_packet(ist, &pkt);
     if (ret < 0) {
-        av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d\n",
-               ist->file_index, ist->st->index);
+        av_log(NULL, AV_LOG_ERROR, "Error while decoding stream #%d:%d: %s\n",
+               ist->file_index, ist->st->index, av_err2str(ret));
         if (exit_on_error)
             exit_program(1);
     }
@@ -2384,12 +3424,104 @@ discard_packet:
     return 0;
 }
 
+/**
+ * Perform a step of transcoding for the specified filter graph.
+ *
+ * @param[in]  graph     filter graph to consider
+ * @param[out] best_ist  input stream where a frame would allow to continue
+ * @return  0 for success, <0 for error
+ */
+static int transcode_from_filter(FilterGraph *graph, InputStream **best_ist)
+{
+    int i, ret;
+    int nb_requests, nb_requests_max = 0;
+    InputFilter *ifilter;
+    InputStream *ist;
+
+    *best_ist = NULL;
+    ret = avfilter_graph_request_oldest(graph->graph);
+    if (ret >= 0)
+        return reap_filters();
+
+    if (ret == AVERROR_EOF) {
+        ret = reap_filters();
+        for (i = 0; i < graph->nb_outputs; i++)
+            close_output_stream(graph->outputs[i]->ost);
+        return ret;
+    }
+    if (ret != AVERROR(EAGAIN))
+        return ret;
+
+    for (i = 0; i < graph->nb_inputs; i++) {
+        ifilter = graph->inputs[i];
+        ist = ifilter->ist;
+        if (input_files[ist->file_index]->eagain ||
+            input_files[ist->file_index]->eof_reached)
+            continue;
+        nb_requests = av_buffersrc_get_nb_failed_requests(ifilter->filter);
+        if (nb_requests > nb_requests_max) {
+            nb_requests_max = nb_requests;
+            *best_ist = ist;
+        }
+    }
+
+    if (!*best_ist)
+        for (i = 0; i < graph->nb_outputs; i++)
+            graph->outputs[i]->ost->unavailable = 1;
+
+    return 0;
+}
+
+/**
+ * Run a single step of transcoding.
+ *
+ * @return  0 for success, <0 for error
+ */
+static int transcode_step(void)
+{
+    OutputStream *ost;
+    InputStream  *ist;
+    int ret;
+
+    ost = choose_output();
+    if (!ost) {
+        if (got_eagain()) {
+            reset_eagain();
+            av_usleep(10000);
+            return 0;
+        }
+        av_log(NULL, AV_LOG_VERBOSE, "No more inputs to read from, finishing.\n");
+        return AVERROR_EOF;
+    }
+
+    if (ost->filter) {
+        if ((ret = transcode_from_filter(ost->filter->graph, &ist)) < 0)
+            return ret;
+        if (!ist)
+            return 0;
+    } else {
+        av_assert0(ost->source_index >= 0);
+        ist = input_streams[ost->source_index];
+    }
+
+    ret = process_input(ist->file_index);
+    if (ret == AVERROR(EAGAIN)) {
+        if (input_files[ist->file_index]->eagain)
+            ost->unavailable = 1;
+        return 0;
+    }
+    if (ret < 0)
+        return ret == AVERROR_EOF ? 0 : ret;
+
+    return reap_filters();
+}
+
 /*
  * The following code is the main loop of the file converter
  */
 static int transcode(void)
 {
-    int ret, i, need_input = 1;
+    int ret, i;
     AVFormatContext *os;
     OutputStream *ost;
     InputStream *ist;
@@ -2399,8 +3531,9 @@ static int transcode(void)
     if (ret < 0)
         goto fail;
 
-    av_log(NULL, AV_LOG_INFO, "Press ctrl-c to stop encoding\n");
-    term_init();
+    if (stdin_interaction) {
+        av_log(NULL, AV_LOG_INFO, "Press [q] to stop, [?] for help\n");
+    }
 
     timer_start = av_gettime();
 
@@ -2410,20 +3543,20 @@ static int transcode(void)
 #endif
 
     while (!received_sigterm) {
+        int64_t cur_time= av_gettime();
+
+        /* if 'q' pressed, exits */
+        if (stdin_interaction)
+            if (check_keyboard_interaction(cur_time) < 0)
+                break;
+
         /* check if there's any stream where output is still needed */
         if (!need_output()) {
             av_log(NULL, AV_LOG_VERBOSE, "No more output streams to write to, finishing.\n");
             break;
         }
 
-        /* read and process one input packet if needed */
-        if (need_input) {
-            ret = process_input();
-            if (ret == AVERROR_EOF)
-                need_input = 0;
-        }
-
-        ret = poll_filters();
+        ret = transcode_step();
         if (ret < 0) {
             if (ret == AVERROR_EOF || ret == AVERROR(EAGAIN))
                 continue;
@@ -2433,7 +3566,7 @@ static int transcode(void)
         }
 
         /* dump report by using the output first video and audio streams */
-        print_report(0, timer_start);
+        print_report(0, timer_start, cur_time);
     }
 #if HAVE_PTHREADS
     free_input_threads();
@@ -2446,7 +3579,6 @@ static int transcode(void)
             output_packet(ist, NULL);
         }
     }
-    poll_filters();
     flush_encoders();
 
     term_exit();
@@ -2458,7 +3590,7 @@ static int transcode(void)
     }
 
     /* dump report by using the first video and audio streams */
-    print_report(1, timer_start);
+    print_report(1, timer_start, av_gettime());
 
     /* close each encoder */
     for (i = 0; i < nb_output_streams; i++) {
@@ -2498,8 +3630,10 @@ static int transcode(void)
                     ost->logfile = NULL;
                 }
                 av_freep(&ost->st->codec->subtitle_header);
-                av_free(ost->forced_kf_pts);
+                av_freep(&ost->forced_kf_pts);
+                av_freep(&ost->apad);
                 av_dict_free(&ost->opts);
+                av_dict_free(&ost->swr_opts);
                 av_dict_free(&ost->resample_opts);
             }
         }
@@ -2507,6 +3641,7 @@ static int transcode(void)
     return ret;
 }
 
+
 static int64_t getutime(void)
 {
 #if HAVE_GETRUSAGE
@@ -2543,16 +3678,29 @@ static int64_t getmaxrss(void)
 #endif
 }
 
+static void log_callback_null(void *ptr, int level, const char *fmt, va_list vl)
+{
+}
+
 int main(int argc, char **argv)
 {
     int ret;
     int64_t ti;
 
-    register_exit(avconv_cleanup);
+    register_exit(ffmpeg_cleanup);
+
+    setvbuf(stderr,NULL,_IONBF,0); /* win32 runtime needs this */
 
     av_log_set_flags(AV_LOG_SKIP_REPEATED);
     parse_loglevel(argc, argv, options);
 
+    if(argc>1 && !strcmp(argv[1], "-d")){
+        run_as_daemon=1;
+        av_log_set_callback(log_callback_null);
+        argc--;
+        argv++;
+    }
+
     avcodec_register_all();
 #if CONFIG_AVDEVICE
     avdevice_register_all();
@@ -2561,10 +3709,12 @@ int main(int argc, char **argv)
     av_register_all();
     avformat_network_init();
 
-    show_banner();
+    show_banner(argc, argv, options);
+
+    term_init();
 
     /* parse options and open all input/output files */
-    ret = avconv_parse_options(argc, argv);
+    ret = ffmpeg_parse_options(argc, argv);
     if (ret < 0)
         exit_program(1);
 
@@ -2576,19 +3726,27 @@ int main(int argc, char **argv)
 
     /* file converter / grab */
     if (nb_output_files <= 0) {
-        fprintf(stderr, "At least one output file must be specified\n");
+        av_log(NULL, AV_LOG_FATAL, "At least one output file must be specified\n");
         exit_program(1);
     }
 
-    ti = getutime();
+//     if (nb_input_files == 0) {
+//         av_log(NULL, AV_LOG_FATAL, "At least one input file must be specified\n");
+//         exit_program(1);
+//     }
+
+    current_time = ti = getutime();
     if (transcode() < 0)
         exit_program(1);
     ti = getutime() - ti;
     if (do_benchmark) {
-        int maxrss = getmaxrss() / 1024;
-        printf("bench: utime=%0.3fs maxrss=%ikB\n", ti / 1000000.0, maxrss);
+        printf("bench: utime=%0.3fs\n", ti / 1000000.0);
     }
+    av_log(NULL, AV_LOG_DEBUG, "%"PRIu64" frames successfully decoded, %"PRIu64" decoding errors\n",
+           decode_error_stat[0], decode_error_stat[1]);
+    if ((decode_error_stat[0] + decode_error_stat[1]) * max_error_rate < decode_error_stat[1])
+        exit_program(69);
 
-    exit_program(0);
-    return 0;
+    exit_program(received_nb_signals ? 255 : main_return_code);
+    return main_return_code;
 }