Also fix missing dependency.

With this helper API, filters that used the first framesync
helper API can easily be changed to use the new and more
extensible design for filters with a single activate() callback.

These wrappers cost nothing, they make the namespace more
consistent and they will be useful if/when locking becomes
necessary.

I am not entirely sure that this return code is useful,
but having and using it makes no harm.

framesync2 will be the base for the version using activate.
Most of the logic will be the same, but the code cannot be shared.
Copying the file initially without change will make the diff
easier to read.

This reverts commit 04aa09c4
and reintroduces 0ff5567a that
was temporarily reverted due to minor regressions.

It also reverts e5bce8b4 that fixed FATE refs.
The fate-ffm change is caused by field_order now being set
on the output format because the first frame arrives earlier.
The fate-mxf change is assumed to be the same.

2.5ms frames:
Before   (c):  2638 decicycles in postrotate, 2097040 runs,    112 skips
After (sse3):  1467 decicycles in postrotate, 2097083 runs,     69 skips
After (avx2):  1244 decicycles in postrotate, 2097085 runs,     67 skips

5ms frames:
Before   (c):  4987 decicycles in postrotate, 1048371 runs,    205 skips
After (sse3):  2644 decicycles in postrotate, 1048509 runs,     67 skips
After (avx2):  2031 decicycles in postrotate, 1048523 runs,     53 skips

10ms frames:
Before   (c):  9153 decicycles in postrotate,  523575 runs,    713 skips
After (sse3):  5110 decicycles in postrotate,  523726 runs,    562 skips
After (avx2):  3738 decicycles in postrotate,  524223 runs,     65 skips

20ms frames:
Before   (c): 17857 decicycles in postrotate,  261866 runs,    278 skips
After (sse3): 10041 decicycles in postrotate,  261746 runs,    398 skips
After (avx2):  7050 decicycles in postrotate,  262116 runs,     28 skips

Improves total decoding performance for real world content by 9% with avx2.
Signed-off-by: NRostislav Pehlivanov <atomnuker@gmail.com>

ac3dsp.c uses tables from ac3.c
ac3.c uses tables from ac3tab.c
hevc_ps uses tables from hevc_data.c
intrax8.c uses tables from msmpeg4data.c
Signed-off-by: NMatt Oliver <protogonoi@gmail.com>

Signed-off-by: NMatt Oliver <protogonoi@gmail.com>

This only enables dlls that are packaged with the application to be
loaded. Due to the limitations of WinRT/UWP it is not allowed to load
external/system dlls so this cannot be used as a complete replacement
for normal win32 dll loading.
Signed-off-by: NMatt Oliver <protogonoi@gmail.com>

Works with VAAPI, VDPAU, DXVA2 and D3D11VA.
Signed-off-by: NLiu, Kaixuan <kaixuan.liu@intel.com>
Signed-off-by: NJun Zhao <jun.zhao@intel.com>
Reviewed-by: Steven Liu <lingjiujianke@gmail.com>
Signed-off-by: NMark Thompson <sw@jkqxz.net>

Fixes: runtime error: signed integer overflow: 9 * 335544320 cannot be represented in type 'int'
Fixes: 2739/clusterfuzz-testcase-minimized-6737297955356672

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

Fixes: runtime error: signed integer overflow: -1073746548 * 21845 cannot be represented in type 'int'
Fixes: 2729/clusterfuzz-testcase-minimized-5902915464069120

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

Fixes: runtime error: signed integer overflow: -536870912 - 1972191120 cannot be represented in type 'int'
Fixes: 2711/clusterfuzz-testcase-minimized-4975142398590976

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

Fixes: out of array accesses

Found-by: JunDong Xie of Ant-financial Light-Year Security Lab
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Fixes: out of array accesses
Fixes: crash-9238fa9e8d4fde3beda1f279626f53812cb001cb-SEGV

Found-by: JunDong Xie of Ant-financial Light-Year Security Lab
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Signed-off-by: NKaustubh Raste <kaustubh.raste@imgtec.com>
Reviewed-by: NManojkumar Bhosale <Manojkumar.Bhosale@imgtec.com>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Fixes: runtime error: signed integer overflow: 1073741823 * 4 cannot be represented in type 'int'
Fixes: 2729/clusterfuzz-testcase-minimized-5902915464069120

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

Fixes multiple integer overflows
Fixes: runtime error: signed integer overflow: 1 + 2147483647 cannot be represented in type 'int'

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegReviewed-by: NPaul B Mahol <onemda@gmail.com>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

The patch does not fix the tsan warning it was intended to fix.
Reverting the patch moves the av_log() back to the outside of the lock.
Signed-off-by: NWan-Teh Chang <wtc@google.com>
Signed-off-by: NRonald S. Bultje <rsbultje@gmail.com>

default_ref[] is unconditionally initialized in h264_initialise_ref_list()
(called from ff_h264_build_ref_list(), called from h264_slice_init()).

This fixes the following tsan warning when running fate-h264:

WARNING: ThreadSanitizer: data race (pid=31070)
  Write of size 8 at 0x7bbc000082a8 by thread T1 (mutexes: write M1628):
    #0 memcpy /work/release-test/final/llvm.src/projects/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:655:5
(ffmpeg+0x10de9d)
    #1 h264_initialise_ref_list ffmpeg/libavcodec/h264_refs.c:214:29 (ffmpeg+0x1186b3f)
    #2 ff_h264_build_ref_list ffmpeg/libavcodec/h264_refs.c:306 (ffmpeg+0x1186b3f)
    #3 h264_slice_init ffmpeg/libavcodec/h264_slice.c:1900:11 (ffmpeg+0x1191149)
[..]
  Previous read of size 8 at 0x7bbc000082a8 by main thread (mutexes:
write M1630):
    #0 memcpy /work/release-test/final/llvm.src/projects/compiler-rt/lib/tsan/../sanitizer_common/sanitizer_common_interceptors.inc:655:5
(ffmpeg+0x10de9d)
    #1 ff_h264_update_thread_context ffmpeg/libavcodec/h264_slice.c:411:5 (ffmpeg+0x118b7dc)
Signed-off-by: NWan-Teh Chang <wtc@google.com>
Signed-off-by: NRonald S. Bultje <rsbultje@gmail.com>

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

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

Fixes: out of array access
Fixes: poc.dnxhd

Found-by: Bingchang, Liu@VARAS of IIE
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Fixes CID1412026.
Signed-off-by: NRostislav Pehlivanov <atomnuker@gmail.com>

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

Use integer position instead of pointer for loop variable. Also only
skip header fields after header has been fully validated.

Avoid undefined behavior in skip_input() by checking that enough data is
available before incrementing input pointer.

Check return values of parse_key() and skip_input() and exit early with
error if there is not enough data.