Fixes CID 1409924.

Fixes CID 1409915.

Signed-off-by: NVittorio Giovara <vittorio.giovara@gmail.com>

Otherwise the first decoded frame will still be tagged with the
original transfer instead of the alternative one.
Signed-off-by: NVittorio Giovara <vittorio.giovara@gmail.com>

avcodec/diracdec: Check dimensions which are closer to what is allocated in alloc_sequence_buffers()

Fixes OOM
Fixes: 2674/clusterfuzz-testcase-minimized-4999700518273024

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

Requested-by: NKieran Kunhya <kierank@obe.tv>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

Reduced msa load-store code.
Removed inline asm of GP load-store for 64 bit.
Updated variable names in GP load-store macros for naming consistency.
Corrected macro descriptions.
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>

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

This prevents potential ABI issues with GetBitContext.
Reviewed-by: Nfoo86 <foobaz86@gmail.com>
Signed-off-by: NJames Almer <jamrial@gmail.com>

ff_h264_decode_mb_cabac() and ff_h264_decode_mb_cavlc() are very long
functions. Declaring decode_chroma as const makes it clear the variable
doesn't change after initialization.
Signed-off-by: NWan-Teh Chang <wtc@google.com>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

hevc_await_progress() uses the variable |y| only inside the "if" block.
So |y| only needs to be declared and initialized in that block.
Signed-off-by: NWan-Teh Chang <wtc@google.com>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

This file already has #include "idctdsp.h", which is resolved to the
idctdsp.h header in the directory where this file resides by compilers.
Two other files in this directory, libavcodec/x86/idctdsp_init.c and
libavcodec/x86/xvididct_init.c, also rely on #include "idctdsp.h"
working this way.
Signed-off-by: NWan-Teh Chang <wtc@google.com>
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

0th CDF value is where probabilities are.
Signed-off-by: NRostislav Pehlivanov <atomnuker@gmail.com>

Should fix compilation failures introduced by 9b937958.

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

Fixes fate-source.

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

For the blue and violet noise, I took the pink and brown noise
respectively and subtracted the offsets instead of adding them. When I
eyeball the frequency spectrum of the resulting outputs it looks correct
to me, i.e. the blue graph appears to be a mirror image of the pink, and
the same can be said of the violet and the brown. I did not do anything
else to confirm the correctness.

Benchmark (with 2 cpus):
./ffmpeg -f rawvideo -s 1280x720 -t 1000 -i /dev/zero \
    -filter_threads $threads -vf transpose=clock -f null null
threads=2:
  old: 31.129s 31.446s 31.574s
  new: 29.602s 29.636s 29.656s
threads=3 (nb_threads = nb_cpus + 1 is bad choice at this situation):
  old: 40.132s 40.279s 40.279s
  new: 39.308s 39.570s 39.693s
threads=4:
  old: 31.306s 31.366s 31.654s
  new: 30.231s 30.360s 30.451s
Signed-off-by: NMuhammad Faiz <mfcc64@gmail.com>

Also remove pthread_cond_broadcast(progress_cond) on uninit.
Broadcasting it is not required because workers are always
parked when they are not in thread_execute. So it is imposible
that a worker is waiting on progress_cond when uninitialized.

Benchmark:
./ffmpeg -threads $threads -thread_type slice -i 10slices.mp4 -f null null
threads=2:
  old: 70.212s 70.525s 70.877s
  new: 65.219s 65.377s 65.484s
threads=3:
  old: 65.086s 66.306s 66.409s
  new: 63.229s 65.026s 65.116s
threads=4:
  old: 60.993s 61.482s 62.123s
  new: 59.224s 59.441s 59.667s
threads=5:
  old: 57.576s 57.860s 58.832s
  new: 53.032s 53.948s 54.086s
Signed-off-by: NMuhammad Faiz <mfcc64@gmail.com>

Rework it to improve performance. Now mutex is not shared by workers,
instead each worker has its own mutex and condition variable. This
reduces lock contention between workers. Also use atomic variable for
counter.

The interface also allows execute to run special function on main
thread, requested by Ronald.
Signed-off-by: NMuhammad Faiz <mfcc64@gmail.com>

Muxers may want to directly access filename in stored in
AVFormatContext. For example in case of RTSP, the filename (url)
is used by the muxer to extract parameters of the connection.
These muxers will fail when used with fifo pseudo-muxer.

This commit fixes this issue by passing filename from AVFormatContext
of fifo pseudo-muxer to all AVFormatContext(s) of underlying muxers
during initialization.
Signed-off-by: NJan Sebechlebsky <sebechlebskyjan@gmail.com>

Use proper get_bits.h functions instead of directly accessing index.
Signed-off-by: NJames Almer <jamrial@gmail.com>

Avoid using bitstream reader in a non-standard way by directly accessing
index. Use bit shifting/masking operations instead.
Signed-off-by: NJames Almer <jamrial@gmail.com>

Duration computation can be simplified because number of PCM blocks is
only allowed to be a multiple of 8.
Signed-off-by: NJames Almer <jamrial@gmail.com>

Permits applications to access DTS profile information without having to
decode a frame.
Signed-off-by: NJames Almer <jamrial@gmail.com>

This makes probing for regular DTS more strict because more header
fields are checked and values not supported by decoder are now rejected.

Also fixes an issue original code had with 14-bit streams: 96 bits of
header were expected, however only 84 bits were converted, which was not
enough to parse LFE flag.
Signed-off-by: NJames Almer <jamrial@gmail.com>

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

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

There are 3 different places where DCA core frame header is parsed:
decoder, parser and demuxer. Each one uses ad-hoc code. Add common core
frame header parsing function that will be used in all places.
Signed-off-by: NJames Almer <jamrial@gmail.com>

It will be used by the parser. This change avoids unwanted parser
dependency on dcadata.
Signed-off-by: NJames Almer <jamrial@gmail.com>