avformat: replace all uses of av_copy_packet()

Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/avpacket: deprecate av_copy_packet()

It does the same thing as av_packet_ref().

Signed-off-by: James Almer <jamrial@gmail.com>

avfilter/interlace: rename two variables for consistency

Signed-off-by: Thomas Mundt <tmundt75@gmail.com>

avfilter/af_headphone: increase max ir length

Signed-off-by: Paul B Mahol <onemda@gmail.com>

fate/fits: add missing png & gif dependencies

Signed-off-by: Paras Chadha <paraschadha18@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavcodec/hapdec : add support HapAlphaOnly

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavformat : add mov dataformat tag for HapAlphaOnly and HapQAlpha

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/takdec: Fix integer overflow in decode_lpc()

Fixes: runtime error: signed integer overflow: 16748560 + 2143729712 cannot be represented in type 'int'
Fixes: 3202/clusterfuzz-testcase-minimized-4988291642294272

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/proresdec2: Check bits in DECODE_CODEWORD(), fixes invalid shift

Fixes: runtime error: shift exponent 42 is too large for 32-bit type 'unsigned int'
Fixes: 3410/clusterfuzz-testcase-minimized-5313377960198144

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/takdec: Fix integer overflows in decode_subframe()

Fixes: runtime error: signed integer overflow: -1562477869 + -691460395 cannot be represented in type 'int'
Fixes: 3196/clusterfuzz-testcase-minimized-4528307146063872

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/libopenmpt: Query duration and metadata after selecting subsong

Duration depends on the selected subsong and thus must be queried after
selecting the subsong. There is no compelling reason to query other
metadata earlier either.

Tested with libopenmpt version: 0.2.8760-beta27
Libopenmpt configure options: --without-ogg --without-vorbis
--without-vorbisfile --without-portaudio --without-portaudiocpp
--without-mpg123 --without-pulseaudio --without-sndfile --without-flac

Signed-off-by: Jörn Heusipp <osmanx@problemloesungsmaschine.de>
Signed-off-by: Josh de Kock <josh@itanimul.li>

avcodec/mips: Improve avc chroma horiz mc msa functions

Replace generic with block size specific function.

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mips: Unrolled loops avc intra msa functions

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mips: Improve hevc uni-w copy mc msa functions

Load the specific destination bytes instead of MSA load and pack.
Pack the data to half word before clipping.
Use immediate unsigned saturation for clip to max saving one vector register.

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/flacenc: Replace "return -1" by named constant

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/snowenc: Replace "return -1" by named constants

Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavdevice/v4l2: fix invalid access to struct v4l2_buffer

In case we are short of queued buffers, at first v4l2_buffer was enqueued to kernel so it's not owned by
user-space anymore. After that it's timestamp field was read, but it might be overwritten by driver at
that moment. It resulted in invalid timestamp sometimes.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

ffplay: zero initialize copy avpacket

Prevents potential use of uninitialized stack.

Signed-off-by: James Almer <jamrial@gmail.com>

avformat/mpeg: zero initialize idx_pkt

Prevents use of uninitialized stack.

Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/v4l2_m2m: add missing header inclusions

Should fix checkheaders on systems where v4l2_m2m is enabled.

Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/Makefile: skip v4l2_m2m headers if needed

Fixes checkheaders on systems where v4l2_m2m is unavailable.

Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/frame_thread_encoder: use av_packet_alloc()

Signed-off-by: James Almer <jamrial@gmail.com>

avfilter/interlace: add support for 10 and 12 bit

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

avfilter/tinterlace: use drawutils for pad mode

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

avformat/mxfdec: use the common packet pts setter function for opatom files

Fixes ticket #6631.

Signed-off-by: Marton Balint <cus@passwd.hu>

avformat/mxfdec: factorize packet pts setter function

Signed-off-by: Marton Balint <cus@passwd.hu>

avcodec/opusenc_psy: use av_clip_uintp2()

Fixes fate-source.

Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/opusenc_utils: add missing preprocessor guards

Fixes fate-source.

Signed-off-by: James Almer <jamrial@gmail.com>

lavfi: make window_func an inline function

Eliminate lavc->lavfi dependency. The function isn't big and doesn't
deserve its own file.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

opusenc: implement a psychoacoustic system

This commit implements a psychoacoustic system for the native Opus
encoder. Its unlike any other psychoacoustic system known since its
capable of using a lookahead to make better choices on how to treat the
current frame and how many bits to allocate for it (and future frames).

Also, whilst the main bulk of the analysis function has to run in a
single thread, the per-frame anaylsis functions does not modify the main
psychoacoustic context, so in the future it will be fairly trivial to
run those as slice threads.

Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

libavcodec: v4l2: add support for v4l2 mem2mem codecs

    This patchset enhances Alexis Ballier's original patch and validates
    it using Qualcomm's Venus hardware (driver recently landed upstream
    [1]).

    This has been tested on Qualcomm's DragonBoard 410c and 820c
    Configure/make scripts have been validated on Ubuntu 10.04 and
    16.04.

    Tested decoders:
           - h264
           - h263
           - mpeg4
           - vp8
           - vp9
           - hevc

    Tested encoders:
           - h264
           - h263
           - mpeg4

    Tested transcoding (concurrent encoding/decoding)

    Some of the changes introduced:
        - v4l2: code cleanup and abstractions added
        - v4l2: follow the new encode/decode api.
        - v4l2: fix display size for NV12 output pool.
        - v4l2: handle EOS (EPIPE and draining)
        - v4l2: vp8 and mpeg4 decoding and encoding.
        - v4l2: hevc and vp9 support.
        - v4l2: generate EOF on dequeue errors.
        - v4l2: h264_mp4toannexb filtering.
        - v4l2: fixed make install and fate issues.
        - v4l2: codecs enabled/disabled depending on pixfmt defined
        - v4l2: pass timebase/framerate to the context
        - v4l2: runtime decoder reconfiguration.
        - v4l2: add more frame information
        - v4l2: free hardware resources on last reference being released
        - v4l2: encoding: disable b-frames for upstreaming (patch required)

    [1] https://lwn.net/Articles/697956/

    System Level view:
        v42l_m2m_enc/dec --> v4l2_m2m --> v4l2_context --> v4l2_buffers

Reviewed-by: Jorge Ramirez <jorge.ramirez-ortiz@linaro.org>
Reviewed-by: Alexis Ballier <aballier@gentoo.org>
Tested-by: Jorge Ramirez <jorge.ramirez-ortiz@linaro.org>
Signed-off-by: wm4 <nfxjfg@googlemail.com>

avformat/gif: use av_packet_alloc()

Signed-off-by: James Almer <jamrial@gmail.com>

avformat/apngenc: use av_packet_alloc()

Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/dirac_dwt: Fix integer overflow in COMPOSE_FIDELITYi*()

Fixes: runtime error: signed integer overflow: 161 * 13872281 cannot be represented in type 'int'

Fixes: 3295/clusterfuzz-testcase-minimized-4738998142500864

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/ffv1dec: Fix integer overflow in read_quant_table()

Fixes: runtime error: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 3361/clusterfuzz-testcase-minimized-5065842955911168

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/svq3: Fix overflow in svq3_add_idct_c()

Fixes: runtime error: signed integer overflow: 2147392585 + 524288 cannot be represented in type 'int'
Fixes: 3348/clusterfuzz-testcase-minimized-4809500517203968

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mips: Remove generic func use in hevc non-uni copy mc msa functions

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mips: preload data in hevc sao edge 90 degree filter msa functions

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avfilter/thumbnail_cuda: add cuda thumbnail filter

Signed-off-by: Timo Rothenpieler <timo@rothenpieler.org>

Fix several typos

"apix_fmts" found by Marc Péchaud.
"speedloss" found by Mikhail V.

Signed-off-by: Lou Logan <lou@lrcd.com>

Remove some unneeded casts of bit_rate.

avformat/hlsenc: support http method for hls fmp4 init file

Signed-off-by: Steven Liu <lq@onvideo.cn>

MAINTAINERS: modify the hlsenc description

change the hlsenc from hls encryption to hlsenc

Suggested-by: Aman Gupta <aman@tmm1.net>
Reviewed-by: Lou Logan <lou@lrcd.com>
Signed-off-by: Steven Liu <lq@onvideo.cn>

avformat/hlsenc: fix CID 1418106

fix the "Uninitialized scalar variable (UNINIT)" problem.

Signed-off-by: Steven Liu <lq@onvideo.cn>

pixdesc: Add API to map color property names to enum values

Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

avcodec/mips: Reduced conditional cases in avc inter lpf msa functions

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mips: Unrolled loops and expanded functions in avc put mc 10 & 30 msa functions

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

GnuTLS: eat PREMATURE_TERMINATION error

GnuTLS is too strict on the SSL shutdown alert, and it's neither
mandatory in the spec or critical. As it's ignored in OpenSSL, we
should also suppress it in GnuTLS as well.

Ticket: #6667

Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avformat/cafdec: reject multichannel Opus streams

Multichannel Opus streams require channel mapping information in extradata.

Signed-off-by: James Almer <jamrial@gmail.com>

lavf/caf: Support demuxing Opus.

Introduced in macOS High Sierra and iOS 11.

avcodec/mips: preload data in hevc sao edge 0 degree filter msa functions

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mips: Fixed rnd_val variable to 6 in hevc uni mc msa functions

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

MAINTAINERS: add myself for bwdif and (t)interlace

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/pngdec: Clean up on av_frame_ref() failure

Fixes: memleak
Fixes: 3203/clusterfuzz-testcase-minimized-4514553595428864

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

lavf/mpegts: Consider stream_type 0x0f just a hint towards AAC.

It is also used in the wild to signal latm.

Fixes ticket #6657.

lavfi/stereo3d: Set SAR for every output frame.

Fixes ticket #6672.

lavf/utils: Do not force chapter end time before chapter start.

Fixes ticket #6671.

lavd/kmsgrab: Remove the mapping for AV_PIX_FMT_RGB8.

The definitions are different: 3:3:2 vs 2:3:3.

avutil/hwcontext_dxva2: return an error when buffer allocation fails

This also prevents the use of an uninitialized variable.

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>

kmsgrab: Add more DRM plane formats

hwcontext_vaapi: Fix DRM format mapping

kmsgrab: Remove multiple-plane formats

The planes are unlikely to be contiguous, assuming they are results in
very broken output.  (Tested with NV12/NV16 on Rockchip.)

kmsgrab: Fix DRM format definitions

All DRM formats are defined in terms of little-endian words, so RGB formats
like XRGB actually have the elements in the opposite order order in memory
to the order they are in the name.

This does not affect YUYV and similar YUV 4:2:2 formats, which are in the
expected order.

vaapi: Disable deprecation warnings around use of old struct vaapi_context

vp9: move VP9SharedContext back to the top of VP9Context

VP9SharedContext needs to be the first member so its properties can be
safely accessed from hardware accelerators, without the need to share
the full VP9Context.

Fixes ticket #6674.

x86/exrdsp: optimize ff_reorder_pixels_avx2()

Tested with "checkasm --test=exrdsp -bench"

Before:
reorder_pixels_c: 5187.8
reorder_pixels_sse2: 377.0
reorder_pixels_avx2: 331.3

After:
reorder_pixels_c: 5181.5
reorder_pixels_sse2: 377.0
reorder_pixels_avx2: 313.8

Signed-off-by: James Almer <jamrial@gmail.com>

avformat/mxfenc: cosmetic changes

Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>

fate: add mxf_dv25/dvcpro50 regression tests

Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>

avformat/mxfenc: fix aspect ratio when writing 16:9 DV frames

Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>

avfilter/tinterlace: Simplify checks for lowpass filtering flags

fate: add tinterlace lowpass filtering tests

Signed-off-by: James Almer <jamrial@gmail.com>

lavc/frame_thread_encoder: Do not mix variable declaration and code.

Fixes a warning:
ISO C90 forbids mixed declarations and code

checkasm: add an exrdsp test

Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/exrdsp: improve the ExrDSPContext->reorder_pixels prototype

Make dst be the first parameter and src const. It's more in line with the rest of the codebase.

Signed-off-by: James Almer <jamrial@gmail.com>

libavcodec/exr : add X86 SIMD for reorder_pixels

Signed-off-by: James Almer <jamrial@gmail.com>

avcodec/vorbisenc: Fix mixed declaration and statements

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/fits: Fix include type

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avutil/imgutils: Fix warning: missing braces around initializer

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/frame_thread_encoder: Fix AV_OPT_TYPE_STRING handling in avctx

This is the equivalent to what 7d317d4706b49d572a1eb5269438753be18362c7
did for the codec-specific options.
av_opt_copy has specific handling so it's fine that we already copied
the whole context before.

Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

avformat/hlsenc: fix segfault when using -hls_segment_type fmp4 with -hls_segment_filename

previously, specifying -hls_segment_filename meant
s->base_output_dirname was never set, causing a segfault:

(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=1, address=0x0)
* frame #0: 0x00007fffbf7d82d0 libsystem_platform.dylib`_platform_strcmp + 80
frame #1: 0x00000001005f4dcf libavformat.57.dylib`io_open_default(s=0x000000010481cc00, pb=0x0000000104806020, url=0x0000000000000000, flags=2, options=0x0000000000000000) at options.c:107
frame #2: 0x0000000100528968 libavformat.57.dylib`hls_mux_init(s=0x000000010481cc00) at hlsenc.c:595
frame #3: 0x00000001005273cb libavformat.57.dylib`hls_write_header(s=0x000000010481cc00) at hlsenc.c:1518
frame #4: 0x00000001005c08d0 libavformat.57.dylib`write_header_internal(s=0x000000010481cc00) at mux.c:486
frame #5: 0x00000001005c0774 libavformat.57.dylib`avformat_write_header(s=0x000000010481cc00, options=0x00000001029026e8) at mux.c:539

vf_fps: Fix memory leak introduced by eea64ef4

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avfilter/interlace: simplify code

Signed-off-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avfilter/interlace: prevent over-sharpening with the complex low-pass filter

The complex vertical low-pass filter slightly over-sharpens the picture. This becomes visible when several transcodings are cascaded and the error potentises, e.g. some generations of HD->SD SD->HD.
To prevent this behaviour the destination pixel must not exceed the source pixel when the average of the pixels above and below is less than the source pixel. And the other way around.

Tested and approved in a visual transcoding cascade test by video professionals.
SSIM/PSNR test with the first generation of an HD->SD file as a reference against the 6th generation(3 x SD->HD HD->SD):
Results without the patch:
SSIM Y:0.956508 (13.615881) U:0.991601 (20.757750) V:0.993004 (21.551382) All:0.974405 (15.918463)
PSNR y:31.838009 u:48.424280 v:48.962711 average:34.759466 min:31.699297 max:40.857847
Results with the patch:
SSIM Y:0.970051 (15.236232) U:0.991883 (20.905857) V:0.993174 (21.658049) All:0.981290 (17.279202)
PSNR y:34.412108 u:48.504454 v:48.969496 average:37.264644 min:34.310637 max:42.373392

Signed-off-by: Thomas Mundt <tmundt75@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mips: Improve hevc sao band filter msa functions

Preload data in band filter 0-8 for better pipeline parallelization.

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mips: Improve avc mc copy msa functions

Remove loops and unroll as block sizes are known.

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mips: Improve avc lpf msa functions

Optimize luma intra case by reducing conditional cases.

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

lavf/http: fix compilation without zlib

Regression since e2f8f14052d99d7710cda0a821e236765b315d0b.

build: fix coreimage filters dependency to AppKit framework

AppKit is not present on iOS.

lavc/mediacodec_wrapper: fix jni vaargs types

Fixes decoding on 32-bit devices with Android NDK >= 15.

lavf/http: Reset compressed header flag, fix http 302 request

Fixes ticket #6404.
Fixes ticket #6666.

Signed-off-by: Jacek Jendrzej <satbaby@kawaii.com>

vf_fps: when reading EOF, using current_pts to duplicate the last frame if needed.

Fix ticket #2674
Tested with examples from ticket 2674.

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mips: Improve hevc idct msa functions

Align the buffers. Remove reduandant constant array.

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mips: Improve hevc lpf msa functions

Seperate the filter processing in all strong, all weak and strong + weak cases.

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: Manojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

hwcontext_vaapi: Fix build failure with old libdrm

Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>

kmsgrab: Fix build failure with old libdrm

DRM_FORMAT_R8 was added in libdrm 2.4.68.
DRM_FORMAT_R16 was added in libdrm 2.4.82.

Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>

avfilter/vf_despill: fix assigment

Reported-by: Moritz Barsnick
Signed-off-by: Paul B Mahol <onemda@gmail.com>

lavd/kmsgrab: Fix packet flag setting

Found-by: James Almer <jamrial@gmail.com>

avcodec.h: fix doxygen comment

doc/indevs: Document kmsgrab input device

lavd: Add KMS screen grabber