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

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>

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

Fix potential integer overflow
Fix CID1254944
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This is similar to the format check
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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>

Fixes CID1257004

Fixes CID1257008
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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>

This is commonly needed for debugging mis-detections
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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>

Should silence CID1257005
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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>

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

Fixes CID1041122
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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

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

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

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

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

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

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

Fixes displaying docs on small-screen devices.
Signed-off-by: Timothy Gu <timothygu99@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

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>

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>

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

* commit '9a738c27':
  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: 36091742Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '33c827f6':
  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: abe0b8e9Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '8c0a865a':
  mov: skip version and flags attributes in mov_read_chan()

See: 59d40fc7Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

* commit 'b72727a5':
  lavc: mention that the parser callback never returns an error
Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

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

* commit '1c77ead1':
  rm: Use the correct codec_data_size signedness

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

See: a6f73073Merged-by: Michael Niedermayer <michaelni@gmx.at>

* commit '1eec9bfc':
  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>

This prevents potential crash when opt API is used without a class.
Signed-off-by: Lukasz Marek <lukasz.m.luki2@gmail.com>

* commit '69c1fe7c':
  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>

* commit '7834a54c':
  configure: enable vda hwaccel by default

Conflicts:
	configure

See: 942cded6Merged-by: Michael Niedermayer <michaelni@gmx.at>

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

See: cfce6f7eMerged-by: Michael Niedermayer <michaelni@gmx.at>