This is mostly straight-forward. The weird part is that it should
just work for mpeg1, but I see corruption in my test cases, so I'm
going to try and fix that separately.

I took the reference lookup code from the vp9 hwaccel where the
type is unsigned char, but for vc1, the type is signed int.

This is particularly important because the value used when there's
no reference is different (255 vs -1).

It didn't seem to break anything, but for mpeg1/2/4, this mistake
caused decode errors.

Add to libavcodec/tests/.gitignore an entry for test
program libavcodec/tests/mpeg12framerate . Other
similar test programs, e.g. jpeg2000dwt and dct, are
ignored in a similar way.

On initially checking out master, and doing "./configure"
and "make clean", "git status" reports no untracked
files. After running "make fate", "git status" reports
untracked file "libavcodec/tests/mpeg12framerate".

mpeg12framerate is a unit test program. It was apparently
introduced in commit
278c308c, on
Tue Sep 12 22:11:56 2017 +0100. It added a new function
ff_mpeg12_find_best_frame_rate() to
libavcodec/mpeg12framerate.c , and the code in
libavcodec/tests/mpeg12framerate.c to exercise that
function. This commit also added the new program to
the FATE suite, but it omitted a .gitignore entry.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Potentially fixes:
https://bugs.chromium.org/p/chromium/issues/detail?id=786269#c1

In theory, the crash can be triggered by an invalid stream that has
either tfdt or trun outside of the moof
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

These tables are static so they should only be initialized once
instead of on every call to ff_mpadsp_init().
Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Should be unconditionally freed at the end of mov_fix_index() in
case it hasn't been used during the fix up.
Signed-off-by: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: Sasi Inguva <isasi-at-google.com@ffmpeg.org>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: runtime error: left shift of negative value -7862264
Fixes: 4074/clusterfuzz-testcase-minimized-4516104123711488

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

Fixes: Timeout
Fixes: 4143/clusterfuzz-testcase-4736864637419520

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

Fixes: 4035/clusterfuzz-testcase-minimized-6479308925173760
Fixes: runtime error: signed integer overflow: 9 * 402653183 cannot be represented in type 'int'

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

Fixes: Timeout
Fixes: 3200/clusterfuzz-testcase-5750022136135680

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

Fixes ticket #6836.

This caused checkheaders to fail on cygwin on this file.

this matches the vpxenc parameter
Signed-off-by: James Zern <jzern@google.com>

Fixes: Timeout
Fixes: 3142/clusterfuzz-testcase-5007853163118592

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

Fixes: Timeout
Fixes: 3142/clusterfuzz-testcase-5007853163118592

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

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

This can reduce latency and increase throughput, particularly on high
latency networks.
Signed-off-by: Aman Gupta <aman@tmm1.net>
Reviewed-by: Jeyapal, Karthick <kjeyapal@akamai.com>

Signed-off-by: Umair Khan <omerjerk@gmail.com>

Reverts commit 18f94df8, fixes ticket #5297.
Signed-off-by: Umair Khan <omerjerk@gmail.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

The avc3 sample entry type is useful for adaptive streaming.  It permits
parameter sets to be written inline in the video stream.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

By putting the call in a subshell, the problem of it spilling
cleanup-decision from a previous library to other libraries is avoided.

For example, it could have already cleaned up cuda_extralibs in a
previous library that depended on cuda. Then when it gets to avutil, it
will never pick up the dependency of avutil to cuda, which depends on
libdl, which in turn results in a missing -ldl extralib, resulting in
link failures in certain configurations.

* commit 'bad7ce1d':
  makedef: Pass EXTERN_PREFIX from configure to makedef
Merged-by: James Almer <jamrial@gmail.com>

* commit 'd070b9b7':
  configure: Coalesce some arch configuration and PIC handling
Merged-by: James Almer <jamrial@gmail.com>

* commit '9e48de3c':
  configure: Miscellaneous minor changes
Merged-by: James Almer <jamrial@gmail.com>

* commit '5c2a01f0':
  Makefile: fix distclean target
  configure: fix writing library dependencies to config.sh

This commit is a noop, see
d9ff1e4c
e7e7d56aMerged-by: James Almer <jamrial@gmail.com>

This avoids having to use either "dumpbin -headers" to find out
the current architecture, or pass $ARCH from configure to deduce it.

When configuring with --disable-asm, ARCH is equal to "c", which doesn't
give any indication of what symbol prefix is to be used.
Signed-off-by: Martin Storsjö <martin@martin.st>

Signed-off-by: Aman Gupta <aman@tmm1.net>
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Should fix ticket #6838
Signed-off-by: James Almer <jamrial@gmail.com>

* commit '620f88a0':
  vaapi_h264: Add missing return value check
  h264_metadata: Fix clearing SEI payload in error case
  cbs_h2645: Fix memory leak on when reading SEI fails
  cbs: Add a missing return value check

This commit is a noop, see
03b14700
d792613b
41272e11
6734eef6Merged-by: Mark Thompson <sw@jkqxz.net>

* commit 'c77da21e':
  vaapi_h264: Do not use deprecated header type

This commit is a noop, see 32a618a9.
Merged-by: Mark Thompson <sw@jkqxz.net>

* commit 'ff007e30':
  vaapi_h264: Add workaround for bad SEI in old Intel drivers
Merged-by: Mark Thompson <sw@jkqxz.net>

Fixes: Use of uninitialized memory
Fixes: assertion failure

Reviewed-by: <atomnuker>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: Timeout
Fixes: 3218/clusterfuzz-testcase-5390672154591232

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

add padding before scantable arrays

See: 522d850eSigned-off-by: Michael Niedermayer <michael@niedermayer.cc>