Follow the name style to correct the hash/md5 muxer class name
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>

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

Reviewed-by: Mark Thompson <sw@jkqxz.net>
Signed-off-by: James Almer <jamrial@gmail.com>

Support is #ifdef'd out at this stage, using ZMBV_ENABLE_24BPP (like in
the zmbv.c decoder)

This brings the channel order in line with that used in 32-bit mode (BGR0).

24-bit decoding is disabled by default (#ifdef ZMBV_ENABLE_24BPP), and no
prior encoders or sample videos are known to exist for this bit depth, so
I consider this change in implementation is unlikely to affect anyone.

The decision has been made in agreement with the DOSBox Development Team
(dosbox.crew@gmail.com), specifically with harekiet, who wrote the original
codec.

Other bit depths saw this change in ced0d6c1, but this instance was
presumably missed because of the #ifdef block.

Fixes ff_opus_deemphasis_fma3 segmentation fault crashes on x86_32.
Signed-off-by: James Almer <jamrial@gmail.com>

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

As per 14496-3 9.D.2.2, it's not defined for these audio object types.

Fixes #7817.

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

Signed-off-by: Zhong Li <zhong.li@intel.com>
Reviewed-by: Mark Thompson <sw@jkqxz.net>

Always exposes low_power option for all qsv encoder, and reports a warning
if VDENC is not supported in current version of MSDK.
Signed-off-by: Linjie Fu <linjie.fu@intel.com>
Signed-off-by: Zhong Li <zhong.li@intel.com>

Addresses #7795

Fixes: Out of array access
Fixes: 13984/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_RSCC_fuzzer-5734128093233152

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

This makes sure the data is available when writing the moov atom during the
second pass triggered by the faststart movflag.

Fixes ticket #7780
Signed-off-by: James Almer <jamrial@gmail.com>

58893 decicycles in deemphasis_c,  130548 runs,    524 skips
9475 decicycles in deemphasis_fma3,  130686 runs,    386 skips -> 6.21x speedup

24866 decicycles in postfilter_c,   65386 runs,    150 skips
5268 decicycles in postfilter_fma3,   65505 runs,     31 skips -> 4.72x speedup

Total decoder speedup: ~14%

Deemphasis SIMD based on the following unrolling:
const float c1 = CELT_EMPH_COEFF, c2 = c1*c1, c3 = c2*c1, c4 = c3*c1;
float state = coeff;

for (int i = 0; i < len; i += 4) {
    y[0] = x[0] + c1*state;
    y[1] = x[1] + c2*state + c1*x[0];
    y[2] = x[2] + c3*state + c1*x[1] + c2*x[0];
    y[3] = x[3] + c4*state + c1*x[2] + c2*x[1] + c3*x[0];

    state = y[3];
    y += 4;
    x += 4;
}

The entire function was defined away before.

Its only used in the encoder and in CELT's PVQ.

This speeds the code up by about 15%
Testcase: 13779/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_INDEO4_fuzzer-5699589711069184

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: Michael Niedermayer <michael@niedermayer.cc>

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

Fixes: Timeout (21sec -> 0.3sec)
Fixes: 13716/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_PRORES_fuzzer-5755593333145600

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

Fix ticket #7297
The current setting for send-expect-100 option is either
enabled if applicable or forced enabled, no option to force
disable the header. This change is to expand the option setting
to provide more flexibility, which is useful for rstp case.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Option "-page N" (page index N starts from 1) can now be used to specify which TIFF page/subfile to decode.
Signed-off-by: Nick Renieris <velocityra@gmail.com>

Commit e34ba5ec missed the indent
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>

Support AMF date type when parse the FLV metadata.
Signed-off-by: Jun Zhao <barryjzhao@tencent.com>

./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 \
          -s 1200x720 -f null -vframes 100 -pix_fmt $i -nostats \
          -cpuflags 0 -v error -

7.2x speedup:

yuyv422
 126354 UNITS in yuv2packedX,   16384 runs,      0 skips
  16383 UNITS in yuv2packedX,   16382 runs,      2 skips
yvyu422
 117669 UNITS in yuv2packedX,   16384 runs,      0 skips
  16271 UNITS in yuv2packedX,   16379 runs,      5 skips
uyvy422
 117310 UNITS in yuv2packedX,   16384 runs,      0 skips
  16226 UNITS in yuv2packedX,   16382 runs,      2 skips

./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 -sws_flags area \
                -s 1200x720 -f null -vframes 100 -pix_fmt $i -nostats \
                -cpuflags 0 -v error -

5.1x speedup:

yuyv422
  19339 UNITS in yuv2packed2,   16384 runs,      0 skips
   3718 UNITS in yuv2packed2,   16383 runs,      1 skips
yvyu422
  19438 UNITS in yuv2packed2,   16384 runs,      0 skips
   3800 UNITS in yuv2packed2,   16380 runs,      4 skips
uyvy422
  19128 UNITS in yuv2packed2,   16384 runs,      0 skips
   3721 UNITS in yuv2packed2,   16380 runs,      4 skips

./ffmpeg -f lavfi -i yuvtestsrc=duration=1:size=1200x1440 \
            -s 1200x1440 -f null -vframes 100 -pix_fmt $i -nostats \
            -cpuflags 0 -v error -

15.3x speedup:

yuyv422
  14513 UNITS in yuv2packed1,   32768 runs,      0 skips
    949 UNITS in yuv2packed1,   32767 runs,      1 skips
yvyu422
  14516 UNITS in yuv2packed1,   32767 runs,      1 skips
    943 UNITS in yuv2packed1,   32767 runs,      1 skips
uyvy422
  14530 UNITS in yuv2packed1,   32767 runs,      1 skips
    941 UNITS in yuv2packed1,   32766 runs,      2 skips

This work is sponsored by VideoLAN.

Similarly to the previous changes, we don't need to synchronise
after a memcpy to device memory. On the other hand, we need to
keep synchronising after a copy to host memory, otherwise there's
no guarantee that subsequent host reads will return valid data.

We're also doing a sync here after copying the frame to be passed
on down the pipleine. And it is also unnecessary.

I was able to demonstrate a 33% speedup removing the sync from
an example transcode pipeline.

I put this call in by habit, rather than because there was any
actual need. The filter is simply processing frames one after
the other and has no need to synchronise.

malakudi on the devtalk forums noticed a slowdown when using nvenc
with temporal/spatial aq and that the slowdown went away if the
sync call was removed. I also verified that in the basic encoding
case there's an observable speedup.

I also verified that we aren't doing unnecessary sync calls in any
other filter.

The filter requires input stream to have sample rate 48000 Hz and dbl fmt.

Fixes #7812

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