Those should not be necessary.

Original change by one of these developers:
    Anton Khirnov <anton@khirnov.net>
    Diego Biurrun <diego@biurrun.de>
    Luca Barbato <lu_zero@gentoo.org>
    Martin Storsjö <martin@martin.st>

See 97962b27 / 72ca830f

vp8_rac_get_tree() is called with a tree of size 3, so the returned
value can not be outside [0;3]. All of the [0;3] cases are handled in
the switch, so the assert should not be triggerable by any means. A
similar change was introduced in 97962b27 / 72ca830f, with the
av_log()+AVERROR_INVALIDDATA form, suggesting it could be triggerable
somehow. This assert might help static analyzer, or simply the reader.

* cus/stable:
  ffplay: calculate last frame duration from vp->pts instead of frame_last_pts
  ffplay: simplify early frame drop code
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Found-by: Михаил <Micky53@mail.ru>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

The operands of an addition can be evaluated in any order, since
the addition isn't a sequence point. The only operators that
have a defined evaluation order are &&, ||, ?: and the sequence
operator ','.

This fixes fate-vp9 on ARM RVCT.

Original change by one of these developers:
    Anton Khirnov <anton@khirnov.net>
    Diego Biurrun <diego@biurrun.de>
    Luca Barbato <lu_zero@gentoo.org>
    Martin Storsjö <martin@martin.st>

See 97962b27 / 72ca830f

Original fix by one of these developers:
    Anton Khirnov <anton@khirnov.net>
    Diego Biurrun <diego@biurrun.de>
    Luca Barbato <lu_zero@gentoo.org>
    Martin Storsjö <martin@martin.st>

See 97962b27 / 72ca830f

Personnal guess is Diego Biurrun.

Also do not update current pts on dropped frames, it is no longer necessary.

Fixes regression part of ticket #2507.
Signed-off-by: Marton Balint <cus@passwd.hu>

Also never early frame drop the first frame after a flush.
Signed-off-by: Marton Balint <cus@passwd.hu>

ffmpeg: Do not fill gap before the first decodable frame on single stream input files unless the user explicitly requests it.

Fixes different behavior to JM and probably several if not all
reference decoders.

We cannot just do this unconditionally as it would ruin AV sync in
some use cases.

Bug-Found-by: BugMaster
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Reviewed-by: Lukasz M <lukasz.m.luki@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

After seek, s->duration need recalculation, AVCodecParserContext need be set
again. Without the fix, the first audio packet would be dropped after
compute_pkt_fields() as the final pts/dts become invalid.
Signed-off-by: wangxingchao <wangxingchao@xiaomi.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

according to the Matroska Specification
ReferenceBlock is a signed integer too.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

according to the Matriska Specification
 http://matroska.org/technical/specs/index.html
DiscardPadding is a signed integer.
Tested-by: Jan Gerber <j@v2v.cc>
Tested-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Originally spotted and fixed by one of these developers:
    Anton Khirnov <anton@khirnov.net>
    Diego Biurrun <diego@biurrun.de>
    Luca Barbato <lu_zero@gentoo.org>
    Martin Storsjö <martin@martin.st>

See 97962b27 / 72ca830f

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

* qatar/master:
  lavc: VP9 decoder

Conflicts:
	Changelog
	doc/general.texi
	libavcodec/Makefile
	libavcodec/version.h
	libavcodec/vp9.c
	libavcodec/vp9.h
	libavcodec/vp9data.h
	libavcodec/vp9dsp.c
	libavcodec/x86/Makefile
	libavcodec/x86/vp9dsp.asm
	libavcodec/x86/vp9dsp_init.c
	tests/fate/vpx.mak
	tests/ref/fate/vp9-00-quantizer-00
	tests/ref/fate/vp9-00-quantizer-01
	tests/ref/fate/vp9-00-quantizer-02
	tests/ref/fate/vp9-00-quantizer-03
	tests/ref/fate/vp9-00-quantizer-04
	tests/ref/fate/vp9-00-quantizer-05
	tests/ref/fate/vp9-00-quantizer-06
	tests/ref/fate/vp9-00-quantizer-07
	tests/ref/fate/vp9-00-quantizer-08
	tests/ref/fate/vp9-00-quantizer-09
	tests/ref/fate/vp9-00-quantizer-10
	tests/ref/fate/vp9-00-quantizer-11
	tests/ref/fate/vp9-00-quantizer-12
	tests/ref/fate/vp9-00-quantizer-13
	tests/ref/fate/vp9-00-quantizer-14
	tests/ref/fate/vp9-00-quantizer-15
	tests/ref/fate/vp9-00-quantizer-16
	tests/ref/fate/vp9-00-quantizer-17
	tests/ref/fate/vp9-00-quantizer-18
	tests/ref/fate/vp9-00-quantizer-19
	tests/ref/fate/vp9-00-quantizer-20
	tests/ref/fate/vp9-00-quantizer-21
	tests/ref/fate/vp9-00-quantizer-22
	tests/ref/fate/vp9-00-quantizer-23
	tests/ref/fate/vp9-00-quantizer-24
	tests/ref/fate/vp9-00-quantizer-25
	tests/ref/fate/vp9-00-quantizer-26
	tests/ref/fate/vp9-00-quantizer-27
	tests/ref/fate/vp9-00-quantizer-28
	tests/ref/fate/vp9-00-quantizer-29
	tests/ref/fate/vp9-00-quantizer-30
	tests/ref/fate/vp9-00-quantizer-31
	tests/ref/fate/vp9-00-quantizer-32
	tests/ref/fate/vp9-00-quantizer-33
	tests/ref/fate/vp9-00-quantizer-34
	tests/ref/fate/vp9-00-quantizer-35
	tests/ref/fate/vp9-00-quantizer-36
	tests/ref/fate/vp9-00-quantizer-37
	tests/ref/fate/vp9-00-quantizer-38
	tests/ref/fate/vp9-00-quantizer-39
	tests/ref/fate/vp9-00-quantizer-40
	tests/ref/fate/vp9-00-quantizer-41
	tests/ref/fate/vp9-00-quantizer-42
	tests/ref/fate/vp9-00-quantizer-43
	tests/ref/fate/vp9-00-quantizer-44
	tests/ref/fate/vp9-00-quantizer-45
	tests/ref/fate/vp9-00-quantizer-46
	tests/ref/fate/vp9-00-quantizer-47
	tests/ref/fate/vp9-00-quantizer-48
	tests/ref/fate/vp9-00-quantizer-49
	tests/ref/fate/vp9-00-quantizer-50
	tests/ref/fate/vp9-00-quantizer-51
	tests/ref/fate/vp9-00-quantizer-52
	tests/ref/fate/vp9-00-quantizer-53
	tests/ref/fate/vp9-00-quantizer-54
	tests/ref/fate/vp9-00-quantizer-55
	tests/ref/fate/vp9-00-quantizer-56
	tests/ref/fate/vp9-00-quantizer-57
	tests/ref/fate/vp9-00-quantizer-58
	tests/ref/fate/vp9-00-quantizer-59
	tests/ref/fate/vp9-00-quantizer-60
	tests/ref/fate/vp9-00-quantizer-61
	tests/ref/fate/vp9-00-quantizer-62
	tests/ref/fate/vp9-00-quantizer-63
	tests/ref/fate/vp9-01-sharpness-1
	tests/ref/fate/vp9-01-sharpness-2
	tests/ref/fate/vp9-01-sharpness-3
	tests/ref/fate/vp9-01-sharpness-4
	tests/ref/fate/vp9-01-sharpness-5
	tests/ref/fate/vp9-01-sharpness-6
	tests/ref/fate/vp9-01-sharpness-7
	tests/ref/fate/vp9-02-size-08x08
	tests/ref/fate/vp9-02-size-08x10
	tests/ref/fate/vp9-02-size-08x16
	tests/ref/fate/vp9-02-size-08x18
	tests/ref/fate/vp9-02-size-08x32
	tests/ref/fate/vp9-02-size-08x34
	tests/ref/fate/vp9-02-size-08x64
	tests/ref/fate/vp9-02-size-08x66
	tests/ref/fate/vp9-02-size-10x08
	tests/ref/fate/vp9-02-size-10x10
	tests/ref/fate/vp9-02-size-10x16
	tests/ref/fate/vp9-02-size-10x18
	tests/ref/fate/vp9-02-size-10x32
	tests/ref/fate/vp9-02-size-10x34
	tests/ref/fate/vp9-02-size-10x64
	tests/ref/fate/vp9-02-size-10x66
	tests/ref/fate/vp9-02-size-16x08
	tests/ref/fate/vp9-02-size-16x10
	tests/ref/fate/vp9-02-size-16x16
	tests/ref/fate/vp9-02-size-16x18
	tests/ref/fate/vp9-02-size-16x32
	tests/ref/fate/vp9-02-size-16x34
	tests/ref/fate/vp9-02-size-16x64
	tests/ref/fate/vp9-02-size-16x66
	tests/ref/fate/vp9-02-size-18x08
	tests/ref/fate/vp9-02-size-18x10
	tests/ref/fate/vp9-02-size-18x16
	tests/ref/fate/vp9-02-size-18x18
	tests/ref/fate/vp9-02-size-18x32
	tests/ref/fate/vp9-02-size-18x34
	tests/ref/fate/vp9-02-size-18x64
	tests/ref/fate/vp9-02-size-18x66
	tests/ref/fate/vp9-02-size-32x08
	tests/ref/fate/vp9-02-size-32x10
	tests/ref/fate/vp9-02-size-32x16
	tests/ref/fate/vp9-02-size-32x18
	tests/ref/fate/vp9-02-size-32x32
	tests/ref/fate/vp9-02-size-32x34
	tests/ref/fate/vp9-02-size-32x64
	tests/ref/fate/vp9-02-size-32x66
	tests/ref/fate/vp9-02-size-34x08
	tests/ref/fate/vp9-02-size-34x10
	tests/ref/fate/vp9-02-size-34x16
	tests/ref/fate/vp9-02-size-34x18
	tests/ref/fate/vp9-02-size-34x32
	tests/ref/fate/vp9-02-size-34x34
	tests/ref/fate/vp9-02-size-34x64
	tests/ref/fate/vp9-02-size-34x66
	tests/ref/fate/vp9-02-size-64x08
	tests/ref/fate/vp9-02-size-64x10
	tests/ref/fate/vp9-02-size-64x16
	tests/ref/fate/vp9-02-size-64x18
	tests/ref/fate/vp9-02-size-64x32
	tests/ref/fate/vp9-02-size-64x34
	tests/ref/fate/vp9-02-size-64x64
	tests/ref/fate/vp9-02-size-64x66
	tests/ref/fate/vp9-02-size-66x08
	tests/ref/fate/vp9-02-size-66x10
	tests/ref/fate/vp9-02-size-66x16
	tests/ref/fate/vp9-02-size-66x18
	tests/ref/fate/vp9-02-size-66x32
	tests/ref/fate/vp9-02-size-66x34
	tests/ref/fate/vp9-02-size-66x64
	tests/ref/fate/vp9-02-size-66x66
	tests/ref/fate/vp9-03-deltaq
	tests/ref/fate/vp9-03-size-196x196
	tests/ref/fate/vp9-03-size-196x198
	tests/ref/fate/vp9-03-size-196x200
	tests/ref/fate/vp9-03-size-196x202
	tests/ref/fate/vp9-03-size-196x208
	tests/ref/fate/vp9-03-size-196x210
	tests/ref/fate/vp9-03-size-196x224
	tests/ref/fate/vp9-03-size-196x226
	tests/ref/fate/vp9-03-size-198x196
	tests/ref/fate/vp9-03-size-198x198
	tests/ref/fate/vp9-03-size-198x200
	tests/ref/fate/vp9-03-size-198x202
	tests/ref/fate/vp9-03-size-198x208
	tests/ref/fate/vp9-03-size-198x210
	tests/ref/fate/vp9-03-size-198x224
	tests/ref/fate/vp9-03-size-198x226
	tests/ref/fate/vp9-03-size-200x196
	tests/ref/fate/vp9-03-size-200x198
	tests/ref/fate/vp9-03-size-200x200
	tests/ref/fate/vp9-03-size-200x202
	tests/ref/fate/vp9-03-size-200x208
	tests/ref/fate/vp9-03-size-200x210
	tests/ref/fate/vp9-03-size-200x224
	tests/ref/fate/vp9-03-size-200x226
	tests/ref/fate/vp9-03-size-202x196
	tests/ref/fate/vp9-03-size-202x198
	tests/ref/fate/vp9-03-size-202x200
	tests/ref/fate/vp9-03-size-202x202
	tests/ref/fate/vp9-03-size-202x208
	tests/ref/fate/vp9-03-size-202x210
	tests/ref/fate/vp9-03-size-202x224
	tests/ref/fate/vp9-03-size-202x226
	tests/ref/fate/vp9-03-size-208x196
	tests/ref/fate/vp9-03-size-208x198
	tests/ref/fate/vp9-03-size-208x200
	tests/ref/fate/vp9-03-size-208x202
	tests/ref/fate/vp9-03-size-208x208
	tests/ref/fate/vp9-03-size-208x210
	tests/ref/fate/vp9-03-size-208x224
	tests/ref/fate/vp9-03-size-208x226
	tests/ref/fate/vp9-03-size-210x196
	tests/ref/fate/vp9-03-size-210x198
	tests/ref/fate/vp9-03-size-210x200
	tests/ref/fate/vp9-03-size-210x202
	tests/ref/fate/vp9-03-size-210x208
	tests/ref/fate/vp9-03-size-210x210
	tests/ref/fate/vp9-03-size-210x224
	tests/ref/fate/vp9-03-size-210x226
	tests/ref/fate/vp9-03-size-224x196
	tests/ref/fate/vp9-03-size-224x198
	tests/ref/fate/vp9-03-size-224x200
	tests/ref/fate/vp9-03-size-224x202
	tests/ref/fate/vp9-03-size-224x208
	tests/ref/fate/vp9-03-size-224x210
	tests/ref/fate/vp9-03-size-224x224
	tests/ref/fate/vp9-03-size-224x226
	tests/ref/fate/vp9-03-size-226x196
	tests/ref/fate/vp9-03-size-226x198
	tests/ref/fate/vp9-03-size-226x200
	tests/ref/fate/vp9-03-size-226x202
	tests/ref/fate/vp9-03-size-226x208
	tests/ref/fate/vp9-03-size-226x210
	tests/ref/fate/vp9-03-size-226x224
	tests/ref/fate/vp9-03-size-226x226
	tests/ref/fate/vp9-2pass-akiyo
	tests/ref/fate/vp9-segmentation-akiyo
	tests/ref/fate/vp9-tiling-pedestrian

Not merged at the request of the authors and maintainers
"<ubitux> we have a lot of fixes they don't have, as well as optim actually"

See: 848826f5Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '458446ac':
  lavc: Edge emulation with dst/src linesize

Conflicts:
	libavcodec/cavs.c
	libavcodec/h264.c
	libavcodec/hevc.c
	libavcodec/mpegvideo_enc.c
	libavcodec/mpegvideo_motion.c
	libavcodec/rv34.c
	libavcodec/svq3.c
	libavcodec/vc1dec.c
	libavcodec/videodsp.h
	libavcodec/videodsp_template.c
	libavcodec/vp3.c
	libavcodec/vp8.c
	libavcodec/wmv2.c
	libavcodec/x86/videodsp.asm
	libavcodec/x86/videodsp_init.c

Changes to the asm are not merged, they are left for volunteers or
in their absence for later.
The changes this merge introduces are reordering of the function
arguments

See: face578dMerged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '3cbe1126':
  dv: Split DV data table declarations into their own header

Conflicts:
	libavcodec/dvdata.h
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'e8fcdebb':
  build: Allow specifying extra object files when linking HOSTPROGS
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Problem:
ffmpeg generated video file which had two audio packets with the same timestamp: last original audio packet and first padded audio packet.

Timestamp of first added audio packet by 'apad' fitler had the same value as last original audio packet. The problem was in 'aresample' fitler, which used next pts instead of current one.
As long as 'apad' and 'aresample' filters have separate mechanisms of timestamp calculation, they got the same values.

Command line:
ffmpeg -i <input_filename> -shortest -apad 512 -af asetnsamples=n=512 -b:a 1058400 -ac 1 -ar 44100 -async 0 -acodec pcm_s16le -sn -f matroska -y <output_file>

Fix:
Call swr_next_pts() function before swr_convert()

Tested:
FATE tests passed.
Fix has been tested in our Transcoder regression framework on ~10k test videos. It's about ~500k transcodes.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Originally written by Ronald S. Bultje <rsbultje@gmail.com> and
Clément Bœsch <u@pkh.me>

Further contributions by:
Anton Khirnov <anton@khirnov.net>
Diego Biurrun <diego@biurrun.de>
Luca Barbato <lu_zero@gentoo.org>
Martin Storsjö <martin@martin.st>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Allow supporting files for which the image stride is smaller than
the maximum block size + number of subpel mc taps, e.g. a 64x64 VP9
file or a 16x16 VP8 file with -fflags +emu_edge.

xv_write_header callback leave not freed resources on errors.
Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Add support for following pixel formats:
- AV_PIX_FMT_UYVY422
- AV_PIX_FMT_YUYV422
Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Signed-off-by: Lukasz Marek <lukasz.m.luki@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

This is necessary to avoid target config settings bleeding into the host
compilation process with hardcoded tables and the DV VLC tables no longer
present as static tables in a header file.

* qatar/master:
  h264: free the tables and uninitialize the context on flush
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'ecf442a5':
  lavf: improve support for AVC-Intra files.

Conflicts:
	libavformat/internal.h
	libavformat/isom.c
	libavformat/mxfdec.c
	libavformat/utils.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '951d8190':
  mxfdec: update current edit unit when seeking in mxf files without index tables

See: f1e606c7Merged-by: Michael Niedermayer <michaelni@gmx.at>

Prevents referencing empty frames when the first packet after the flush
does not contain a frame.

Generate extradata with SPS/PPS based on container dimensions.

Authors of this commit are: Reimar and Thomas Mundt
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Fixes audio packet pts values in some files generated by AVID TRMG 3.01.
Signed-off-by: Marton Balint <cus@passwd.hu>
Reviewed-by: Tomas Härdin <tomas.hardin@codemill.se>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

* qatar/master:
  mpeg12dec: Remove outdated UV swapping code for VCR2

Not merged as this change would likely break VCR2 with XVMC
The code can be removed when / in case XVMC is removed
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '669fe505':
  twinvq: consume block_align+1 packets as full ones

Conflicts:
	libavcodec/twinvq.c

See: 2e7a1fddMerged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '1afa8a75':
  twinvq: support multiple frames per packet

Conflicts:
	libavcodec/twinvq.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit 'ddb839e9':
  metasound: add missing modes
Merged-by: Michael Niedermayer <michaelni@gmx.at>