avcodec/vp9: make last_invisible local.

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 97962b2 / 72ca830

avcodec/x86/vp9dsp: use EXTERNAL_* macros.

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 97962b2 / 72ca830

Personnal guess is Diego Biurrun.

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>

avformat/rtmphttp: Partial fix for the ticket #3127 (second try)

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

avcodec: Fix duration error after seek operation

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>

lavf/matroskadec ReferenceBlock is a signed integer

according to the Matroska Specification
ReferenceBlock is a signed integer too.

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

lavf/matroska*: DiscardPadding is a signed integer

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>

avcodec/vp9: fix "initialize" typo.

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 97962b2 / 72ca830

avformat/matroska: simplify signed int access code

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

lavf/matroska*: add support for signed integers

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

riff: add G264 to mpeg4, only decodes keyframes

Merge remote-tracking branch 'qatar/master'

* 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: 848826f527bcf9927a539f7808d1d7c08f57193b
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '458446acfa1441d283dacf9e6e545beb083b8bb0'

* commit '458446acfa1441d283dacf9e6e545beb083b8bb0':
  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: face578d56c2d1375e40d5e2a28acc122132bc55
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '3cbe1126530449336e2ce59b194bdb8c4eb4abb4'

* commit '3cbe1126530449336e2ce59b194bdb8c4eb4abb4':
  dv: Split DV data table declarations into their own header

Conflicts:
libavcodec/dvdata.h

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

Merge commit 'e8fcdebb17fc59375fd9fc6c0a02a1d2e6d9fb23'

* commit 'e8fcdebb17fc59375fd9fc6c0a02a1d2e6d9fb23':
  build: Allow specifying extra object files when linking HOSTPROGS

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

af_aresample: Fix timestamp of first padded PCM audio packet

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>

lavc: VP9 decoder

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>

lavc: Edge emulation with dst/src linesize

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.

lavd/xv: free resources on errors

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>

lavd/xv: add more supported formats

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>

lavd/xv: simplify write_packet

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

dv: Split DV data table declarations into their own header

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.

build: Allow specifying extra object files when linking HOSTPROGS

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  h264: free the tables and uninitialize the context on flush

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

Merge commit 'ecf442a58b09bdb1dc1d2c3904b82ac5f79b2878'

* commit 'ecf442a58b09bdb1dc1d2c3904b82ac5f79b2878':
  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>

Merge commit '951d819006730145255333749367c4ea722ffd9b'

* commit '951d819006730145255333749367c4ea722ffd9b':
  mxfdec: update current edit unit when seeking in mxf files without index tables

See: f1e606c762a33e19c5181f3c11f47c7ecd7cbb21
Merged-by: Michael Niedermayer <michaelni@gmx.at>

h264: free the tables and uninitialize the context on flush

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

lavf: improve support for AVC-Intra files.

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>

mxfdec: update current edit unit when seeking in mxf files without index tables

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>

Merge remote-tracking branch 'qatar/master'

* 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>

Merge commit '669fe505952f3d8175b1ad6971033a8e8120523b'

* commit '669fe505952f3d8175b1ad6971033a8e8120523b':
  twinvq: consume block_align+1 packets as full ones

Conflicts:
libavcodec/twinvq.c

See: 2e7a1fdd6d51aec59931ce7b278b12faa66f98fd
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '1afa8a7568ba57ad0cd2923f6e641e10d32cded4'

* commit '1afa8a7568ba57ad0cd2923f6e641e10d32cded4':
  twinvq: support multiple frames per packet

Conflicts:
libavcodec/twinvq.c

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

Merge commit 'ddb839e9286594ff7a862a956402106fca7055c9'

* commit 'ddb839e9286594ff7a862a956402106fca7055c9':
  metasound: add missing modes

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

Merge commit '7b9780e7bf9d86e3e4e9606a971bb2d0d718bac2'

* commit '7b9780e7bf9d86e3e4e9606a971bb2d0d718bac2':
  mpeg12dec: Remove unused swap_uv member from Mpeg1Context

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

Merge commit 'cce3e0a49f0dd030262c28d9c53de0bd2fd909c4'

* commit 'cce3e0a49f0dd030262c28d9c53de0bd2fd909c4':
  Move av_fast_{m,re}alloc from lavc to lavu.

Conflicts:
libavcodec/avcodec.h
libavcodec/utils.c
libavutil/mem.c
libavutil/version.h

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

mpeg12dec: Remove outdated UV swapping code for VCR2

avcodec/mpegvideo_enc: Fix possibly exploitable security issue with -bf

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

Merge commit 'aa241229891173b0357eee04e6ca78f806cc9c0c'

* commit 'aa241229891173b0357eee04e6ca78f806cc9c0c':
  lavc: deprecate FF_MAX_B_FRAMES

Conflicts:
libavcodec/options_table.h

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

Merge commit 'b6094811f9fca66cdf853420696e96fdc3e4987a'

* commit 'b6094811f9fca66cdf853420696e96fdc3e4987a':
  lavc: move MB_TYPE_* macros from avcodec.h to mpegvideo.h

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

Merge commit 'b45c87083de67969c1598cfef41e7c947b137922'

* commit 'b45c87083de67969c1598cfef41e7c947b137922':
  lavc: schedule unused FF_QSCALE_TYPE_* for removal on next bump

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

twinvq: consume block_align+1 packets as full ones

They can be produced by VQF.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

twinvq: support multiple frames per packet

Signed-off-by: Diego Biurrun <diego@biurrun.de>

metasound: add missing modes

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Merge commit '8941971a8f2e24b9a84fe29f128d13ceb89c0a65'

* commit '8941971a8f2e24b9a84fe29f128d13ceb89c0a65':
  lavc: make error_rate a private option of mpegvideo encoders

Conflicts:
libavcodec/options_table.h
libavcodec/version.h

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

Merge commit '728c4658563dc82115ade0f1679679eddb7be5ff'

* commit '728c4658563dc82115ade0f1679679eddb7be5ff':
  vdpau: add a constructor for AVVDPAUContext.

Conflicts:
libavcodec/vdpau.h

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

Merge commit 'ca22d1dea2842fca0422dd1d2bd09e7eb2c8f118'

* commit 'ca22d1dea2842fca0422dd1d2bd09e7eb2c8f118':
  vdpau: add a convenience function for getting a decoder profile.

Conflicts:
doc/APIchanges
libavcodec/vdpau.c
libavcodec/vdpau.h
libavcodec/version.h

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

avcodec/vdpau: try to fix version macro use

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

mpeg12dec: Remove unused swap_uv member from Mpeg1Context

h264: Do not treat the initial frame special in handling of frame gaps

The not handling of frame gaps has lead to the lack of a dummy reference
frame, which has lead to the failure of decode_slice_header() which has
lead to one SEI recovery message being skiped which had introduced a
slightly suboptimal recovery point for at least 1 h264 file compared to
JM.

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

doc: remove avutil.txt

No useful contents. Also hard to keep up-to-date.

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

doc/libavutil: add things from avutil.txt

Many minor fixes from: Stefano Sabatini <stefasab@gmail.com>.

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

Move av_fast_{m,re}alloc from lavc to lavu.

lavc: deprecate FF_MAX_B_FRAMES

We should not arbitrarily decide the maximum B-frame number for all
encoders supported by Libav, each encoder should be able to set its own
limits.

lavc: move MB_TYPE_* macros from avcodec.h to mpegvideo.h

They are mpegvideo-specific and not supposed to be used by callers.

lavc: schedule unused FF_QSCALE_TYPE_* for removal on next bump

lavc: make error_rate a private option of mpegvideo encoders

vdpau: add a constructor for AVVDPAUContext.

We will likely want to add new fields to it in the future, so this is
needed to avoid breaking ABI.

vdpau: add a convenience function for getting a decoder profile.

Based on the code by Rémi Denis-Courmont <remi@remlab.net> from VLC.

fate: Add VCR2 test

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

mpeg12dec: Remove incomplete and wrong UV swapping code for VCR2

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

mpegvideo: Fix swapping of UV planes for VCR2

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  Deprecate obsolete XvMC hardware decoding support

Conflicts:
libavcodec/mpeg12.c
libavcodec/mpeg12dec.c
libavcodec/mpegvideo.c
libavcodec/options_table.h
libavutil/pixdesc.c
libavutil/version.h

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

Merge commit 'c7f7bfc9e3a3150ba72bc34366c13fb2210c66ac'

* commit 'c7f7bfc9e3a3150ba72bc34366c13fb2210c66ac':
  Remove all Alpha architecture optimizations

Conflicts:
libavcodec/alpha/asm.h
libavcodec/alpha/dsputil_alpha.c
libavcodec/alpha/dsputil_alpha.h
libavcodec/alpha/dsputil_alpha_asm.S
libavcodec/alpha/hpeldsp_alpha.c
libavcodec/alpha/hpeldsp_alpha.h
libavcodec/alpha/hpeldsp_alpha_asm.S
libavcodec/alpha/motion_est_alpha.c
libavcodec/alpha/motion_est_mvi_asm.S
libavcodec/alpha/mpegvideo_alpha.c
libavcodec/alpha/regdef.h
libavcodec/alpha/simple_idct_alpha.c

We have a qemu based fate alpha client. And various failures
on alpha have previously pointed to issues in generic C code.
Thus IMHO it makes sense to keep alpha code as long as someone
is willing to do the little bit of maintaince it needs

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

Merge commit '16381923fb7b9087ce559fb1cd3594469ac6788b'

* commit '16381923fb7b9087ce559fb1cd3594469ac6788b':
  configure: Check whether MSVC requires using the C89-to-C99 converter

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

avformat/nullenc: mark null as VFPS

This avoids frame duplication for null output
avoiding unneeded computations.

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

ffmpeg_opt: fix overriding values set by -target

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

Deprecate obsolete XvMC hardware decoding support

XvMC has long ago been superseded by newer acceleration APIs, such as
VDPAU, and few downstreams still support it. Furthermore XvMC is not
implemented within the hwaccel framework, but requires its own specific
code in the MPEG-1/2 decoder, which is a maintenance burden.

Remove all Alpha architecture optimizations

Alpha has been end-of-lifed and no more test machines are available.

configure: Check whether MSVC requires using the C89-to-C99 converter

MSVC does support enough of C99 to work without the converter since
the 2013 version. Try to detect which version of the compiler in
the path needs to run the C99 converter or not. When the converter
is omitted, compilation time is reduced quite drastically.

Prior to this, users could still use --cc="c99conv -noconv cl"
when running MSVC 2013 to achieve the same.

This checks the version number instead of doing a normal compile
test, since this check needs to be done earlier in configure, before
the normal compile test helpers are usable.

Signed-off-by: Martin Storsjö <martin@martin.st>

avformat/aviobuf: return error from avio_put_str16le() for invalid input

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

avio_put_str16le: Print error message in case of invalid UTF8 input

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

avformat/mmst: propagate error code from avio_put_str16le()

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

doc: remove soc.txt

The file was written in 2006, it was never updated nor really used as
reference for SOC-like programs.

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Stefano Sabatini <stefasab@gmail.com>

lavd/xv: fix memory leak

Results of XvQueryAdaptors have to be freed with XvFreeAdaptorInfo.

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

lavfi: add elbg filter

lavc/elbg: rename ff_ symbols to avpriv_, so they can be used in shared libs

In particular, allows the use of elbg in other FFmpeg libraries, required
by the pending elbg filter.

vorbis: handle special packets in the middle of a stream

This allows for updating metadata from new metadata packets in the
middle of a stream (e.g., MPD streams). There still needs to be a signal
that there *is* new metadata, but this is at least gets the data into a
data structure.

Signed-off-by: Ben Boeckel <mathstuf@gmail.com>
Reviewed-by: wm4 <nfxjfg@googlemail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/vqf: check a few more bits in probe

Fixes probetest failure
The threshold is choosen so that a all printale ascii string will never be
detected as vqf

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

avcodec/vp9: use av_freep() for above_partition_ctx

Fixes use after free if memory allocation fails.

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

avformat/smacker: check width/height in probe

Fixes probetest failure

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

avcodec/mpegvideo_motion: Handle edge emulation even without unrestricted_mv

Fixes out of array reads
Fixes part of: MSVR 440 (the other issues seem to have been fixed already)
Found-by: Jeremy Brown (jerbrown) of ReSP
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

MAINTAINERS: Add 1.2 back to the maintained releases

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

Fix example in pullup documentation.

The pullup filter does not work well with the fps filter, it
currently needs -r

Signed-off-by: Carl Eugen Hoyos <cehoyos@ag.or.at>

libavcodec/xsubenc.c: set coded_bits_per_sample

Explicitly set the number of bits per sample to stop
the avi muxer from guessing at 24 bits.
The result is that bits per pixel in the avi stream header
matches what other XSUB muxers produce, such as AVIAddXSubs.exe

Signed-off-by: Erik Olofsson <eaj.olofsson@gmail.com>
Reviewed-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/xsubenc.c: Fix bounding box coordinates

Fix coordinates of the lower right corner of the text area.
Note that the coordinates are redundant as the size and
position of the text area are known.
Many decoders (including Sony Playstation 3, VLC and FFmpeg)
ignore the redundant coordinates.
Some hardware decoders need them for correct playback.

Verified on Philips DVD player models HTS7201 and DVP3380.

Fixes ticket #3031

Signed-off-by: Erik Olofsson <eaj.olofsson@gmail.com>
Reviewed-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Merge remote-tracking branch 'cus/stable'

* cus/stable:
  libzvbi-teletextdec: propagate errors generated in page handler
  libzvbi-teletextdec: dont ignore memory allocation error silently
  libzvbi-teletextdec: output ass subtitles instead of plain text
  ass: move text_event_to_ass from textdec.c to ass.c and export it
  ass: fix error handling in ff_ass_add_subrect
  ass: factor out ff_ass_bprint_dialog
  libzvbi-teletextdec: use AVBPrint for whitespace cleanup
  libzvbi-teletextdec: use option constants instead of strings
  libzvbi-teletextdec: fix indentation after last commit
  libzvbi-teletextdec: support multiple teletext pages in a single packet

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

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  mpegaudioenc: Move some static tables to MpegAudioContext

Conflicts:
libavcodec/mpegaudioenc.c
libavcodec/mpegaudiotab.h

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

Merge commit '5d6a990c115850326711c2f5be4d9fd33f399616'

* commit '5d6a990c115850326711c2f5be4d9fd33f399616':
  mpegaudioenc: Remove broken integer-only quantization code path

Conflicts:
libavcodec/mpegaudioenc.c

Mostly not merged, the integer code works fine.

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

avformat/electronicarts: check chunksize more completely in probe()

Fixes probetest failure

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

avformat/electronicarts: check chunk size.

Fix infinite loop

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

avformat/dfa: check first frame offset in probe

Fixes probetest failure

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

avformat/bethsoftvid: check 4th header byte in probe

Fixes probetest failure

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

avformat/avr: check channels and bps in probe

Fixes probetest failure

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

avformat/utils: disabled debug code to collect format probing statistics

This allows collecting statistics on probing scores and the amount of data
probing needed for various files and formats.
For example it can be used to find out which formats tend to need more
data for probing or which files are probed with less certain/lower scores

Reviewed-by: Stefano Sabatini <stefasab@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

doc: delete viterbi.txt

The description has been moved to the FFmpeg wiki:
https://trac.ffmpeg.org/wiki/ViterbiAlgorithm

Signed-off-by: Timothy Gu <timothygu99@gmail.com>

ffmpeg: remove unneeded include "libswscale/swscale.h"

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

libzvbi-teletextdec: propagate errors generated in page handler

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

libzvbi-teletextdec: dont ignore memory allocation error silently

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

libzvbi-teletextdec: output ass subtitles instead of plain text

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

avfilter/fade: use FADE_OUT macro.