Make easier to handle the polling function before we implement
full threading support.

(cherry picked from libav commit ca960161)
Signed-off-by: James Almer <jamrial@gmail.com>

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>

These changes store id3 chapter data in ID3v2ExtraMeta and introduce
ff_id3v2_parse_chapters to parse them into the format context if needed.

Encoders using ff_id3v2_read, which previously parsed chapters into the
format context automatically, were adjusted to call
ff_id3v2_parse_chapters.
Signed-off-by: wm4 <nfxjfg@googlemail.com>

Split it off from install-data.

Among other things, this prevents spamming triplicate log lines during install.
Reviewed-by: Clément Bœsch <u@pkh.me>
Signed-off-by: James Almer <jamrial@gmail.com>

Add missing AV_OPT_FLAG_FILTERING_PARAM flag to "start_time" option.
Fix indent of "round" named constants and clear unused field values.
Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>

Align order of "start_time" option within fps filter documentation to actual
implementation. Also fix some documentation cosmetics.
Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>

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

Fixes assembling with old yasm.

Add () to regsize define
Suggested-by: Henrik Gramner <henrik@gramner.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes out of array access
Fixes: crash-huf.avi

Regression since: 6b41b441

This could also be fixed by adding checks in the C code that calls the dsp
Found-by: Zhibin Hu and 连一汉 <lianyihan@360.cn>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Some V4L2 drivers fail to allocate buffers when sizeimage is not set
to a max value. This is indeed the case for s5p-mfc [1]

Most drivers should be able to calculate this value from the frame
dimensions and format - or at least have their own default.

However since this work around should not impact those drivers doing
the "right thing" this commit just provides such a default.

The calculations were extracted from the v4l2 driver used to develop
the ffmpeg v4l2_m2m support [2]. See venc.c and vdec.c

[1] linux.git/drivers/media/platform/s5p-mfc
[2] linux.git/drivers/media/platform/qcom/venus/

This is not present in older bionic and therefore fails to build there,
and the code is much simpler without it anyway.

Regression since 84b3f53a.

The string is allocated with CFStringGetCString but was being
deallocated with free(), which would intermittently result in
a segmentation fault.  Use the correct function for freeing the
allocated CFString.
Signed-off-by: Devin Heitmueller <dheitmueller@ltnglobal.com>
Signed-off-by: Marton Balint <cus@passwd.hu>

It was disabled by mistake.
Signed-off-by: Marton Balint <cus@passwd.hu>

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

This FFmpeg-specific "fuzzer fix" was never perfect, but now it
stopped encoding of actual content with a big enough DTS shift.
This returns the function to its original state of results
before negative CTS offsets were added.

I remember dealing with this function before, but somehow had
forgotten about it during VDD. The test cases not tripping this
over also didn't help.

Otherwise, it's never enabled unless the user explicitely enables it.

Regression since 9ef5a2f5.

Fixes Ticket #6702.

* commit 'd154bdd3':
  configure: Simplify dlopen check
Merged-by: James Almer <jamrial@gmail.com>

* commit 'd7b2bb53':
  h264_sei: Check actual presence of picture timing SEI message

This commit is a noop, see 6a37abc5Merged-by: James Almer <jamrial@gmail.com>

* commit '21cca00d':
  build: Explicitly disable external libraries when not explicitly enabled

This commit is a noop.
Merged-by: James Almer <jamrial@gmail.com>

* commit 'e1a6d63c':
  fate: Rename WMV8_DRM decoder tests to WMV3_DRM
Merged-by: James Almer <jamrial@gmail.com>

* commit '79331df3':
  rtsp: Lazily set up the pollfd array once
Merged-by: James Almer <jamrial@gmail.com>

* commit 'd8f36a6a':
  nvenc: Fix the preset mapping list

This commit is a noop.
Merged-by: James Almer <jamrial@gmail.com>

* commit '698ac8f9':
  fate: Make null comparison method more useful
Merged-by: James Almer <jamrial@gmail.com>

* commit 'c483398b':
  build: Drop DOC_ prefix from EXAMPLES-related variables
Merged-by: James Almer <jamrial@gmail.com>

* commit '5263f464':
  rtsp: Lazily allocate the pollfd array
Merged-by: James Almer <jamrial@gmail.com>

* commit 'b9b82151':
  rtsp: Move the pollfd setup out of the for loop
Merged-by: James Almer <jamrial@gmail.com>

* commit '150e99d6':
  rtsp: Factor out packet reading
Merged-by: James Almer <jamrial@gmail.com>

* commit '4141a5a2':
  Use modern avconv syntax for codec selection in documentation and tests
Merged-by: James Almer <jamrial@gmail.com>

The number of bits from bit #m to #n is n - m plus 1.
Signed-off-by: Ingo Brückl <ib@wupperonline.de>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: Timeout
Fixes: 3291/clusterfuzz-testcase-4630024655208448

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

Fixes: runtime error: signed integer overflow: -1408475220 + -1408475220 cannot be represented in type 'int'
Fixes: 3336/clusterfuzz-testcase-minimized-5656839179993088

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

Fixes: 3444/clusterfuzz-testcase-minimized-6270352105668608

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

It is to fix https://trac.ffmpeg.org/ticket/6677. Actucally it is a
regression of commit 99e07a44 which
always inserts a dummy frame when decode the first key field picture.
Signed-off-by: Zhong Li <zhong.li@intel.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

* commit 'da8093f7':
  fate: Use bitexact optimizations in the svq3-2 test

This commit is a noop, see b591329cMerged-by: James Almer <jamrial@gmail.com>

* commit '984736dd':
  lavc: make sure not to return EAGAIN from codecs
Merged-by: James Almer <jamrial@gmail.com>

* commit '4cc02270':
  apetag: account for header size if present when returning the start position
  apetag: fix flag value to signal footer presence

This commit is a noop, see
e8d6fef3
84d874a6Merged-by: James Almer <jamrial@gmail.com>