Merge commit '174c5fde90060faab67796a5eaef742630f1db6e'

* commit '174c5fde90060faab67796a5eaef742630f1db6e':
  mov: parse @PRM and @PRQ metadata tags

Conflicts:
libavformat/mov.c

See: f540851ce320bc69621ea70b89857c54129c82c2
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '35384934d6e27e0334060a23a0c83a3cb5cef198'

* commit '35384934d6e27e0334060a23a0c83a3cb5cef198':
  mov: cosmetics: reorder the list of tags

Conflicts:
libavformat/mov.c

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

Merge commit '6fd91fa11909f27902498648680dbb3d13f1f175'

* commit '6fd91fa11909f27902498648680dbb3d13f1f175':
  h264: increase MAX_SLICES to 32

The available sample decodes correctly before, but the reporter of the bug
claims that this change reduces artifacts. This is thus merged
If someone has samples that decode differently depending in the MAX_SLICES
value, please open a ticket on trac.
Also this change should be reverted if it turns out that the artifacts
that where seen had a different cause

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

Merge commit 'd0b224054f13bf57244694a3ff092cfef68d66f9'

* commit 'd0b224054f13bf57244694a3ff092cfef68d66f9':
  vf_frei0r: do not increment string if it reached the end

See: 02a6ee51685eb74f7a878dd49553ecc1f8da9fb2
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '90411b333d6b6bb69d8937117b9250785730dc53'

* commit '90411b333d6b6bb69d8937117b9250785730dc53':
  Allow reading of growing avi files (currently being written)

Conflicts:
libavformat/avidec.c
tests/ref/fate/cvid-partial

See: e42a3dd123c47efd7921f93d4a1f6f53c196ad4a
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '4843a9c74f77f5eb8d2b1ee648fe2ac6e2a48ec3'

* commit '4843a9c74f77f5eb8d2b1ee648fe2ac6e2a48ec3':
  dpx: always write the image offset

Conflicts:
libavcodec/dpxenc.c
tests/ref/lavf/dpx

See: 361319d0f49475bc14c744194870f9bab78a8a83
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '250e077ee9eec0176a6d54a78542dc792943e71a'

* commit '250e077ee9eec0176a6d54a78542dc792943e71a':
  riff: Support decoding png in avi (ImageJ)

See: 3668168afa1ef73928b2c6cc2a6ffa8e8ad82312
Merged-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/pngdec: handle 4 more bytes with SIMD for RGB64 in paeth prediction

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

avcodec/x86/pngdsp: fix off by 1 error

This fixes artifacts in the last pixel of rows with some widths and pixel formats

Found-by: Dominique Leroux <Dominique.Leroux@autodesk.com>
Tested-by: Dominique Leroux <Dominique.Leroux@autodesk.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avutil/opt: Fix AV_OPT_TYPE_BINARY case in av_opt_is_set_to_default()

Fixes CID1257010

Reviewed-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/ppc/vp3dsp_altivec: POWER LE support to vp3_idct_add_altivec()

add GET_VDST16() macro

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

mov: parse @PRM and @PRQ metadata tags

These tags describe the product and quicktime library version respectively.
They originate from Adobe Premiere, but also some other programs use them.
Contrary to other tags, they contain 'raw' data which is not to be
interpreted as iso639 or mac strings.

Based on a patch by Peter Ross <pross@xvid.org>.

mov: cosmetics: reorder the list of tags

Alphabetically order the list by the tag to facilitate the insertion of
new ones.

h264: increase MAX_SLICES to 32

H264 streams from CounterPath Bria and some Cisco phones need an
increased pool for correct decoding.

Bug-Id: 645
Sample-Id: bria-h264.mka

vf_frei0r: do not increment string if it reached the end

Bug-Id: 778
CC: libav-stable@libav.org

Allow reading of growing avi files (currently being written)

This uses the RIFF header stored size to figure out the expected AVI
file size, instead of the actual file. To work fully it requires handling
failed avio_seek() instead of assuming they always succeed.

Some fate file has been cut off and contains half a frame at the end which
previously was not output during demuxing. This frame is now output to
encoder, thus the fate diff update.

Bug-Id: 261
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

dpx: always write the image offset

According to the DPX file format description found at
http://www.fileformat.info/format/dpx/egff.htm the ImageElement part of
the GenericImageHeader also contains an an offset to the real image data
beside the same member that can be found in the GenericFileHeader.

Libav keeps this member empty (=0) while some applications expects it to
be filled properly. FATE test updated accordingly.

Bug-Id: 742
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

riff: Support decoding png in avi (ImageJ)

Merge commit 'b280c6202b28b371a8d96850194fd69d7ad5dcc0'

* commit 'b280c6202b28b371a8d96850194fd69d7ad5dcc0':
  arm: fft_vfp: Unify the behaviour in ff_fft_calc_vfp between arm/thumb

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

Merge commit 'ae81576414f2d2083d3118fb4abe1ebc5a7a4c54'

* commit 'ae81576414f2d2083d3118fb4abe1ebc5a7a4c54':
  arm: fft_vfp: Add a missing "endconst" when building in thumb mode

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

Merge commit '29bc7bfba288ff8572ed967a8752a1dbde7b724b'

* commit '29bc7bfba288ff8572ed967a8752a1dbde7b724b':
  rtpproto: Write a warning if the input data written isn't RTP packetized

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

arm: fft_vfp: Unify the behaviour in ff_fft_calc_vfp between arm/thumb

Don't include the function pointer table in the code segment
in arm mode.

This shouldn't have any significant performance effect. It does
end up as a few more instructions than before, for ARM, but
only at the entry to this function, not within the fft functions
themselves.

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

arm: fft_vfp: Add a missing "endconst" when building in thumb mode

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

rtpproto: Write a warning if the input data written isn't RTP packetized

Tell the user that the RTP muxer needs to be used to packetize
the data - using the RTP protocol on its own isn't enough.

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

configure: Let the libx264rgb encoder select the libx264 encoder.

Standalone compilation of the libx264rgb encoder does not work.

avcodec/pngdec: check av_image_get_linesize return value

Fixes CID 1257012

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

avformat/movenc: Add 2048x1080 to the aivx case

This improves compatibility of such files with apple tools

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

Merge commit '6a880090cd75b6c31b5ee1f088b6578a293099c6'

* commit '6a880090cd75b6c31b5ee1f088b6578a293099c6':
  doc: Use the correct @subsection tag

See: cf3bfc970c7a567763aef4bf7ce827f84d692fd6
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '4fd7e63c87226584e60200b82630a6057c0a6663'

* commit '4fd7e63c87226584e60200b82630a6057c0a6663':
  mp3: Tweak the probe scores

Conflicts:
libavformat/mp3dec.c

FFmpeg detects the file fine, and there is a non zero risk
that this change may lead to misdetections, thus not merged.
If someone has a mp3 file that is misdetected, please open a ticket

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

Merge commit '4f5906a1d7f4368cec43b224e8a675f54d2001d2'

* commit '4f5906a1d7f4368cec43b224e8a675f54d2001d2':
  latm: Do not give a score for a single instance

Conflicts:
libavformat/rawdec.c

No change, the buggy case was not part of FFmpeg

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

Merge commit '71f29410e7c58f2ce4aef1d4b8d8d3c064c8ec06'

* commit '71f29410e7c58f2ce4aef1d4b8d8d3c064c8ec06':
  lavfi: Increase drawtext font size limits

Conflicts:
libavfilter/vf_drawtext.c

See: b87d4c2b9f4106045afeabe1f1338c3eddb66935
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Improve configure help text.

Show which features external libraries enable.
Fixes ticket #4157

Fix xcb 32bit pix_fmts: There is no screen transparency.

avformat/matroskadec: request a sample with recursive seek heads

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

avformat/matroskadec: fix handling of recursive SeekHead elements

When matroska_execute_seekhead() is called, it goes through the list of
seekhead entries and attempts to read elements not read yet. When doing
this, the parser can find further SeekHead elements, and will extend the
matroska->seekhead list. This can lead to a (practically) infinite loop
with certain broken files. (Maybe it can happen even with valid files.
The demuxer doesn't seem to check correctly whether an element has
already been read.)

Fix this by ignoring elements that were added to the seekhead field
during executing seekhead entries.

This does not fix the possible situation when multiple SeekHead elements
after the file header (i.e. occur after the "before_pos" file position)
point to the same elements. These elements will probably be parsed
multiple times, likely leading to bugs.

Fixes ticket #4162.

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

doc: Use the correct @subsection tag

makeinfo would otherwise refuse to build it.

mp3: Tweak the probe scores

Having more than 10 consecutive frames decoded as mp3 should be
considered a clear signal that the sample is mp3 and not mpegps.

Reported-By: Florian Iragne <florian@iragne.fr>
CC: libav-stable@libav.org

doc/filters: Add ascii graphics to clarify what the currently implemented tinterlace modes do

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

avformat/dashenc: make durations 64bit

Fix potential integer overflow
Fix CID1254944

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

avcodec/utils: Check AVFrame width/height in avcodec_encode_video2()

This is similar to the format check

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

avdevice/xcbgrab: Fix show_region rectangle

Fixes trac ticket #4164

This is to address an error when using show_region, which would cause part of the captured area to become static.
It looks like the rectangle specifying the capture area was relative to the capture window.

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

avcodec/jacosubdec: check strftime return value

Fixes CID1257004

latm: Do not give a score for a single instance

Bug-Id: 773
CC: libav-stable@libav.org

lavfi: Increase drawtext font size limits

Raise the maximum font size to a larger value.

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

avutil/opt: Check av_parse_video_rate()s return value

Fixes CID1257008

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

avutil/opt: Check av_parse_color() return value

Fixes: CID1257007
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/utils: check AVframe.format being set in avcodec_encode_video2()

We dont fail hard if its not set as the old API allowed this and our examples
did in the distant past not set it, these examples still work with the
current code and some encoders.

Based on suggestion by: funman
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/mpeg: add commented out av_log() to probe

This is commonly needed for debugging mis-detections

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

avformat/mpeg: do not count PES packets inside PES packets during probing

Fixes: misdetection of test2.mp3
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avutil/buffer: add #if USE_ATOMICS around atomics specific functions to ensure sync types arent mixed by mistake

Fixes CID1257011

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

avformat/mpegts: Warn if ffio_ensure_seekback() failed

Should silence CID1257005

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

avcodec/libxavs: disable global header code

This code only segfaults and fixing the segfault, the resulting
files are unplayable, so disable to avoid the segfault.

Better solution is welcome

See: [FFmpeg-devel] [PATCH] avcodec/libxavs: remove global header code
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/apetag: More completely check avio_get_str() return value

This is not needed but its more proper to check the return value

Fixes CID1041122

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

avfilter/vf_signalstats: fix avframe leak on error

Fixes CID1257014
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avfilter/buffersrc: add context to av_log() call

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

avcodec/hevc_ps: Add context to av_log() call

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

avfilter/avcodec: use NULL instead of 0 for pointer

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

ffserver_config: fix line width on fwd declarations

Signed-off-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>

ffserver_config: reflow _get_arg()

Signed-off-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>

ffserver_config: reflow _parse_ffconfig()

Signed-off-by: Reynaldo H. Verdejo Pinochet <reynaldo@osg.samsung.com>

doc: html: Use native viewport

Fixes displaying docs on small-screen devices.

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

doc: Do not use the headings as links to TOC anchors

Instead, use FontAwesome icons (if configured to be this way) or separate
text.

Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avformat/hlsenc: added segment filename option

This option allows segment filenames to be specified. Unless -hls_flags
single_file is set the filename is used as a string format with the
segment number.

Example:
ffmpeg -f lavfi -i testsrc -c:v h264 -map 0 -hls_segment_filename
bar%03d.ts foo.m3u8

Signed-off-by: Christian Suloway <csuloway@globaleagleent.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/dvbsubdec: Remove redundant "DVBSub error" prefix

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

Merge commit '9a738c27dceb4b975784b23213a46f5cb560d1c2'

* commit '9a738c27dceb4b975784b23213a46f5cb560d1c2':
  v210enc: Add SIMD optimised 8-bit and 10-bit encoders

Conflicts:
libavcodec/v210enc.c
libavcodec/v210enc.h
libavcodec/x86/Makefile
libavcodec/x86/v210enc.asm
libavcodec/x86/v210enc_init.c
tests/ref/vsynth/vsynth1-v210
tests/ref/vsynth/vsynth2-v210

See: 36091742d182b3ad4411aae22682354b3834a974
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '33c827f632f95ffe3399b695a5a0d47b366b6e20'

* commit '33c827f632f95ffe3399b695a5a0d47b366b6e20':
  swscale: Properly scale YUV

Conflicts:
libswscale/swscale_unscaled.c
tests/ref/fate/filter-pixdesc-yuv420p10be
tests/ref/fate/filter-pixdesc-yuv420p10le
tests/ref/fate/filter-pixdesc-yuv420p9be
tests/ref/fate/filter-pixdesc-yuv420p9le
tests/ref/fate/filter-pixdesc-yuva420p10be
tests/ref/fate/filter-pixdesc-yuva420p10le
tests/ref/fate/filter-pixdesc-yuva420p9be
tests/ref/fate/filter-pixdesc-yuva420p9le
tests/ref/fate/filter-pixfmts-copy
tests/ref/fate/filter-pixfmts-null
tests/ref/fate/filter-pixfmts-scale
tests/ref/fate/filter-pixfmts-vflip

See: abe0b8e9f378a0f8781c1a3da6714d20cfd19594
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '8c0a865ad96b9e8542051f75b0edc424cb73994e'

* commit '8c0a865ad96b9e8542051f75b0edc424cb73994e':
  mov: skip version and flags attributes in mov_read_chan()

See: 59d40fc7e66e6ebb2d89e25115492bfe13b07d95
Merged-by: Michael Niedermayer <michaelni@gmx.at>

lavc/options: fix leaks in avcodec_copy_context

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

Merge commit 'b72727a5248f1ef02db99b378dce1eb48a46357a'

* commit 'b72727a5248f1ef02db99b378dce1eb48a46357a':
  lavc: mention that the parser callback never returns an error

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

avformat/rmdec: Check for overflow in ff_rm_read_mdpr_codecdata()

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

avformat/rmdec: rm_read_extradata: add error message for oversized extradata

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

Merge commit '1c77ead1fb14d64e6798fc5e32af04abcb3cebb4'

* commit '1c77ead1fb14d64e6798fc5e32af04abcb3cebb4':
  rm: Use the correct codec_data_size signedness

Conflicts:
libavformat/rm.h
libavformat/rmdec.c

See: a6f730730b82645a9d31aad0968487cb77d6946c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '1eec9bfc383f6dca29d83a2bfb45433dd66561c9'

* commit '1eec9bfc383f6dca29d83a2bfb45433dd66561c9':
  APIchanges: mark the release 11 branch point

Conflicts:
doc/APIchanges

Not merged as the contents in our APIchanges differ and it could be confusing

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

lavc/options: don't copy priv context when it is not AVOption object

This prevents potential crash when opt API is used without a class.

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

Merge commit '69c1fe7c9c9bc85eebfc02c6a19caf7e88cd74ff'

* commit '69c1fe7c9c9bc85eebfc02c6a19caf7e88cd74ff':
  mkv: Validate ASS Start and End fields

Conflicts:
libavformat/matroskaenc.c

No change as the changed code is not in FFmpeg

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

Merge commit '7834a54c66d46471b246b411627efe2e8ef9dd47'

* commit '7834a54c66d46471b246b411627efe2e8ef9dd47':
  configure: enable vda hwaccel by default

Conflicts:
configure

See: 942cded690bc6dc931c60078f39cf0f339a89058
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '894545cb717427a47f800dc7738b923afde139a6'

* commit '894545cb717427a47f800dc7738b923afde139a6':
  mpegvideo: exit cleanly when ff_mpv_common_frame_size_change() fails

See: cfce6f7efd28130bf0dd409b2367ca0f8c9b2417
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '7a38987f245e3c280d81442f207b983333b6233c'

* commit '7a38987f245e3c280d81442f207b983333b6233c':
  mpegvideo: free_context_frame() cannot fail, make it return void

See: 94c61cd9aede4c0b57632d524a725c2dda719eb3
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit 'c45eeb2dbf42382d335da8068231a8026c08843b'

* commit 'c45eeb2dbf42382d335da8068231a8026c08843b':
  mpegvideo: replace assert about interlaced EC with debug av_log()

Conflicts:
libavcodec/mpegvideo.c

See: c88bbc01eb7f67f7399fb89800bf1bfc89edb248
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '3a56bcee7cb7549b2813e39ce3bee3b7c522aecb'

* commit '3a56bcee7cb7549b2813e39ce3bee3b7c522aecb':
  mpeg12dec: Use more specific error codes

Conflicts:
libavcodec/mpeg12dec.c

See: 1852b2a0f497d3c5437d5b50379d7874fc8c285a
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit 'b56afb48aecb96e03347f5b569f16a64147c18b1'

* commit 'b56afb48aecb96e03347f5b569f16a64147c18b1':
  mpeg12dec: Print error/warning messages on issues in mpeg1_decode_sequence()

Conflicts:
libavcodec/mpeg12dec.c

See: 88b4c1a7316cf47f68bf04accf613375b7326992
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit 'e0bb74a1403ed77ef369b9d62866f8a4afaf3f1d'

* commit 'e0bb74a1403ed77ef369b9d62866f8a4afaf3f1d':
  exr: Add a gamma flag to exr loader to avoid banding

Conflicts:
libavcodec/exr.c

See: cd3daad77ea420f3373d3c5feee46825d235cccc
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit 'd69d787dad77f62c89cbc7ea5d301641f45f36e3'

* commit 'd69d787dad77f62c89cbc7ea5d301641f45f36e3':
  h264: proper cleanup in ff_h264_alloc_tables() if DPB alloc fails

See: 949057c95879e601bd33c8a42eeca39ced2b9a2d
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Merge commit '56de2897a68e3a8795b0b3c593dad1c5832696e0'

* commit '56de2897a68e3a8795b0b3c593dad1c5832696e0':
  h264: Fix memory leak on ff_h264_decode_init() failure

Conflicts:
libavcodec/h264.c

See: 309a931a38b42c0a635f096cdbea9c21c5e54eab
Merged-by: Michael Niedermayer <michaelni@gmx.at>

avcodec/dvbsubdec: Pass context to av_log()

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

avcodec/golomb: use NULL for pointers instead of 0

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

doc/examples/filtering_video: fix frame rate

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

avformat/mpegts: fix Opus stream count

That number represents the number of streams, not the number of channels

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

v210enc: Add SIMD optimised 8-bit and 10-bit encoders

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

swscale: Properly scale YUV

Only shift limited range luma, and always only shift chroma
for upconversion.

Based off a patch by Michael Niedermayer.

Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>
Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

mov: skip version and flags attributes in mov_read_chan()

Fixes decting channel layout for files with uncommon audio, such as
FL and FR in two separate streams. Introduced in 3bab7cd.

CC: libav-devel@libav.org
Sample-Id: ticket1474.mov
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

avcodec/mpegaudiodec_template: only allocate fdsp when its used

Fixes memleak

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

lavc/libxvid: workaround for bug in libxvidcore

libxvidcore calculate number of threads basing on video height.
If height is small enough it allocates 0 bytes long memory and
writes to it.
Setting thread_count to 0 uses 1 thread and skips bugged code.

Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

lavc: mention that the parser callback never returns an error

libavformat/mxfdec.c refactor resolving MultiDescriptor and remove essence group hack

I think this is a better way to deal with single frame essence data then my
previous way.

Reviewed-by: Tomas Härdin <tomas.hardin@codemill.se>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

replaced av_dv_codec_profile by av_dv_codec_profile2 in encoder and dv muxers

Signed-off-by: Steve Jiekak <devaureshy@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

add av_dv_codec_profile2 : uses framerate to select best matching profile. default on first matching profile

Signed-off-by: Steve Jiekak <devaureshy@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

doc/examples/transcoding: check encoder before using it

Fixes null pointer exception

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

avcodec/imc: only check remaining bits in case bits will be read

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

imc: make issue non-fatal

The "faulty" samples actually sound fine when ignoring this issue.

For ticket #3886, more samples are decoded.

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