add ff_pixelutils_sad_32x32_sse2, ff_pixelutils_sad_{a,u}_32x32_sse2,
ff_pixelutils_sad_32x32_avx22, ff_pixelutils_sad_{a,u}_32x32_avx2

use perf record/report profiling, get instructions:u for avx2 sad_32x32:

  72.05%  pixelutils  pixelutils     [.] block_sad_32x32_c
  18.50%  pixelutils  pixelutils     [.] block_sad_16x16_c
   4.78%  pixelutils  pixelutils     [.] block_sad_8x8_c
   2.69%  pixelutils  pixelutils     [.] block_sad_4x4_c
   0.89%  pixelutils  pixelutils     [.] block_sad_2x2_c
   0.16%  pixelutils  pixelutils     [.] ff_pixelutils_sad_32x32_avx2
   0.16%  pixelutils  pixelutils     [.] ff_pixelutils_sad_u_32x32_avx2
   0.12%  pixelutils  pixelutils     [.] ff_pixelutils_sad_a_32x32_avx2

sse2 sad_32x32 instructions:u like:

  71.86%  pixelutils  pixelutils     [.] block_sad_32x32_c
  18.42%  pixelutils  pixelutils     [.] block_sad_16x16_c
   4.81%  pixelutils  pixelutils     [.] block_sad_8x8_c
   2.68%  pixelutils  pixelutils     [.] block_sad_4x4_c
   0.88%  pixelutils  pixelutils     [.] block_sad_2x2_c
   0.29%  pixelutils  pixelutils     [.] ff_pixelutils_sad_32x32_sse2
   0.26%  pixelutils  pixelutils     [.] ff_pixelutils_sad_u_32x32_sse2
   0.23%  pixelutils  pixelutils     [.] ff_pixelutils_sad_a_32x32_sse2
Signed-off-by: Jun Zhao <mypopydev@gmail.com>

add sad_32x32 in pixelutils API, and update the fate.
Signed-off-by: Jun Zhao <mypopydev@gmail.com>

Signed-off-by: James Almer <jamrial@gmail.com>

Add tests for upmixing and downmixing with audio channel counts that
have a corresponding default layout and also tests where there is no
default layout.

Update the existing "stereo4" test so it actually outputs stereo like
the other stereo tests. Rename the previous "stereo4" test into
"upmix1".
Reviewed-by: Nicolas George <george@nsup.org>
Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Tobias Rapp <t.rapp@noa-archive.com>

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Gyan Doshi <ffmpeg@gyani.pro>

Signed-off-by: James Almer <jamrial@gmail.com>

Also remove the superfluous aandcttables dependency from all the modules
that only need it because of mpegvideoenc

Fixes ticket #7333
Signed-off-by: James Almer <jamrial@gmail.com>

Clang is more strict about some things.

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: James Almer <jamrial@gmail.com>

Fixes crashes like "ffmpeg -h bsf" caused by passing NULL to strcmp()
Signed-off-by: James Almer <jamrial@gmail.com>

Fixes: signed integer overflow: 8 * 340018243 cannot be represented in type 'int'
Fixes: 9441/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5194665207791616

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: 88 * 33685506 cannot be represented in type 'int'
Fixes: 9433/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-5725943535501312

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

avcodec/diracdec: Change frame_number to 64bit as its a 32bit from the bitstream and we also have a -1 special case

Fixes: signed integer overflow: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 9291/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-6324345860259840

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: 2147483647 + 1 cannot be represented in type 'int'
Fixes: 8926/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-6047609228623872

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: -393471 * 5460 cannot be represented in type 'int'
Fixes: 8890/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_DIRAC_fuzzer-6299775379963904

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

Ticket #7052

Signed-off-by: James Almer <jamrial@gmail.com>

Fixes compilation.
Signed-off-by: James Almer <jamrial@gmail.com>

Tested-by: Steven Liu <lq@chinaffmpeg.org>
Signed-off-by: hwren <hwrenx@126.com>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

Signed-off-by: hwren <hwrenx@126.com>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

Tested-by: Steven Liu <lq@chinaffmpeg.org>
Signed-off-by: hwren <hwrenx@126.com>
Signed-off-by: Steven Liu <lq@chinaffmpeg.org>

Signed-off-by: Jun Zhao <mypopydev@gmail.com>

This can change the the MSS value announced to the other end in
the initial TCP packet, it's can be used when failed Path MTU
discovery.
Signed-off-by: Jun Zhao <mypopydev@gmail.com>

Found-by: Marcin Gorzel <gorzel@google.com>
Reviewed-by: Marcin Gorzel <gorzel@google.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Fixes: 2018-0721-sample
Fixes: null pointer dereference

Found-by: Nikita Knyzhov (knnikita@yandex.ru)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Rematrixing supports up to 64 channels. However, there is only a limited number of channel layouts defined. Since the in/out channel count is currently obtained from the channel layout, for undefined layouts (e.g. for 9, 10, 11 channels etc.) the rematrixing fails.

This patch changes rematrix init methods to use in (used) and out channel count directly instead of computing it from channel layout.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Position-independent executables are required since Lollipop.

Reported-by: Mohammed Bey Ahmed Khernache

libavutil/hwcontext_d3d11va.c: In function 'd3d11va_device_create':
libavutil/hwcontext_d3d11va.c:554:46: warning: passing argument 2 of 'pAdapter->lpVtbl->GetDesc' from incompatible pointer type [-Wincompatible-pointer-types]
         hr = IDXGIAdapter2_GetDesc(pAdapter, &desc);
                                              ^
libavutil/hwcontext_d3d11va.c:554:46: note: expected 'DXGI_ADAPTER_DESC * {aka struct DXGI_ADAPTER_DESC *}' but argument is of type 'DXGI_ADAPTER_DESC2 * {aka struct DXGI_ADAPTER_DESC2 *}'
Reviewed-by: Jean-Baptiste Kempf <jb@videolan.org>
Signed-off-by: James Almer <jamrial@gmail.com>

Fixes a compilation warning if size_t != uint64_t:
libavformat/mov.c: In function ‘mov_read_saio’:
libavformat/mov.c:6207:45: warning: assignment from incompatible pointer type [-Wincompatible-pointer-types]
         encryption_index->auxiliary_offsets = auxiliary_offsets;
                                             ^

The buffer size was increased in b2fecce3 to prepare for 790a3cdf.

Includes a few other minor changes and updates.
Signed-off-by: Lou Logan <lou@lrcd.com>

This way if an index table segment is present multiple times, we can always use
the proper one instead of the invalid one.

Fixes seeking in the sample of ticket #5671.
Signed-off-by: Marton Balint <cus@passwd.hu>

Signed-off-by: Mina <minasamy_@hotmail.com>

frame_number will not increase if nothing is output

Fixes: Timeout
Fixes: 9057/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CDGRAPHICS_fuzzer-4844661498707968

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

This improves speed

Fixes: Timeout
Fixes: 9010/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TSCC_fuzzer-6042614817095680

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

We do not want to loose the side data in case of errors
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>