add more check befor destory the buffer
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>

Always set *size to zero if *bufptr is NULL, it's more make sence.

fix #8095
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>

The reference frame isn't valid after seeking.

Many ffmpeg + rpi compilation guides on the internet recommend
using `./configure --enable-omx --enable-omx-rpi`. This fails
to find the IL OMX headers on device because the omx require_headers
check happens first before the add_cflags in omx_rpi.

A workaround is to use `./configure --enable-omx-rpi` only, since
omx_rpi already implies omx. But because many users expect to use
existing scripts and commands, we swap the order here so omx_rpi
special cases are applied first.

In the past this wasn't an issue because users noticed the OMX_Core.h
missing error and installed libomxil-bellagio-dev. But since
76c82843, the rpi specific headers from /opt/vc/include/IL
are required.
Signed-off-by: Aman Gupta <aman@tmm1.net>

Fixes: Timeout (24sec->2sec)
Fixes: 15951/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INDEO5_fuzzer-5095433266790400

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

Fixes: Timeout (131sec -> 4sec)
Fixes: 15581/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INDEO4_fuzzer-5651105515569152

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

Fixes: Timeout (7sec -> 1sec)
Fixes: 14709/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_GDV_fuzzer-5704215281795072

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

tools/target_dec_fuzzer: adjust pixel threshold for SANM, as it allows coding gigantic images on tiny input

Fixes: Timeout (13sec ->1sec)
Fixes: 16122/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_SANM_fuzzer-5724944247291904

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

Fixes: signed integer overflow: -395281576 + -1827578048 cannot be represented in type 'int'
Fixes: 16038/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TTA_fuzzer-5646109705240576

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

Fixes: Timeout (->9sec)
Fixes: 16292/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_VB_fuzzer-5747063496638464

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

Fixes: Timeout (122sec -> 13ms)
Fixes: 15978/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CAVS_fuzzer-5148925004087296

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

This makes the code bitexact between platforms.
Intermediate timestamps between frames are preserved.
The timebase is simplified.
Rounding differs from doubles in cases where timestamps/durations
are "funny"

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

Follow the description of av_realloc, the memory needs to be allocated
by av_realloc.

How to check it:
./ffmpeg -f lavfi -i testsrc  -c:v mpeg2video  -f null  -
master:
  Side data:
        cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay:
        18446744073709551615
patch applied:
Side data:
      cpb: bitrate max/min/avg: 0/0/200000 buffer size: 0 vbv_delay: N/A
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Limin Wang <lance.lmwang@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Change one relevant assert to av_assert0 while here.

Fixes timecode calculation for NTSC frame rates.
Fixes ticket #5978.

Added linux support for amf encoder through vulkan.

To use h.264(AMD VCE) encoder on linux amdgru-pro version 19.20+ and
amf-amdgpu-pro package(amdgru-pro contains, but does not install
automatically) are required.

This driver can be installed using amdgpu-pro-install script in
official amd driver archive.

Initialization of amf encoder occurs in this order:
1) trying to initialize through dx11(only windows)
2) trying to initialize through dx9(only windows)
3) trying to initialize through vulkan

Only Vulkan initialization available on linux.

It may be propagated only once for the entire stream.
Signed-off-by: James Almer <jamrial@gmail.com>

ff_reget_buffer() will attempt to create a writable copy of the frame,
which is not needed when the decoder intends to return a reference to
the same buffer as the previous frame.

Should reduce data copy, hopefully achieving a similar speed up as
a9dacdee without dropping frames.
Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>

This reverts commit a9dacdee.

This patch effectively made the decoder output vfr content out of samples
where cfr is expected.

Addresses ticket #7880.
Signed-off-by: James Almer <jamrial@gmail.com>

Fixes: Infinite loop
Fixes: 16260/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC9_fuzzer-5676365617037312
Fixes: 16260/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ATRAC9_fuzzer-5768093879500800

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

The reference frame isn't valid after seeking
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

Fixes ticket #8093
Reviewed-by: Andreas Rheinhardt <andreas.rheinhardt@gmail.com>
Signed-off-by: James Almer <jamrial@gmail.com>

This was a regression in 5fdcf85bSigned-off-by: Aman Gupta <aman@tmm1.net>
Signed-off-by: Mark Thompson <sw@jkqxz.net>

wavelets allow significant size expansion and they are also not
very fast.

Fixes: Timeout
Fixes: 16480/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5659892689403904 (108sec -> 17ms)
Fixes: 16480/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5749422717140992 (big ->15sec)

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegReviewed-by: Tomas Härdin <tjoppen@acc.umu.se>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: Timeout (infinite)
Fixes: 16732/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-5642166377906176

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegReviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: shift exponent 32 is too large for 32-bit type 'unsigned int'
Fixes: 15764/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_ALAC_fuzzer-5102101203517440

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpegReviewed-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

CID: 1452644
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

CID: 1452445
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

fix CID: 1426931
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>