Add comments to describe the sources of the constraint values expressed here,
and add some more related values which will be used in following patches.

Fix the incorrect values for SPS and PPS count (they are not the same as those
used for H.264), and remove HEVC_MAX_CU_SIZE because it is not used anywhere.

With comments describing the derivation of each value.

mov_finalize_stsd_codec() parses stream information from the ALAC extradata,
so run it after the extradata processing is completed in mov_read_stsd().

Fixes playback of 96kHz ALAC streams muxed by qaac or the reference alac encoder.

Adapted from an FFmpeg patch by Hendrik Leppkes <h.leppkes@gmail.com>

Bug-Id: 1072

Based on an FFmpeg patch by Michael Niedermayer <michael@niedermayer.cc>

Based on an FFmpeg patch by Michael Niedermayer <michael@niedermayer.cc>

This allows running those tests with hwaccel.

This way the SPS is available to the hwaccel init code.

Fixes an infinite loop when a demuxer fails to seek to the start of the input.

Signed-off-by: Peter Große <pegro@friiks.de>
Signed-off-by: Anton Khirnov <anton@khirnov.net>

Some parts of the code are based on a patch by
Timo Rothenpieler <timo@rothenpieler.org>

This will be useful in the CUVID hwaccel. It should also eventually
replace current decoder-specific mechanisms used by various other
hwaccels.

This will be useful in the CUVID hwaccel.

Use the AVFrame.opaque_ref field. The original user's opaque_ref is
wrapped in the lavc struct and then unwrapped before the frame is
returned to the caller.

This new struct will be useful in the following commits.

If the get_buffer() call fails, the frame might have some side data
already set. Make sure it gets freed.

CC: libav-stable@libav.org

CC: libav-stable@libav.org

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Use the correct ctxIdxInc calculation for coded_block_flag.
Keep old behavior for old versions of x264 for backward compatibility.

CC: libav-stable@libav.org

Signed-off-by: Anton Khirnov <anton@khirnov.net>

CC: libav-stable@libav.org

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Do not use the one in the SEI directly as that is reset at certain
points.

Inspired by patches from Michael Niedermayer <michaelni@gmx.at> and
Anton Mitrofanov <BugMaster@narod.ru>.

CC: libav-stable@libav.org

Black isn't always just memset(ptr, 0, size). Limited YUV in particular
requires relatively non-obvious values, and filling a frame with
repeating 0 bytes is disallowed in some contexts. With component sizes
larger than 8 or packed YUV, this can become relatively complicated. So
having a generic function for this seems helpful.

In order to handle the complex cases in a generic way without destroying
performance, this code attempts to compute a black pixel, and then uses
that value to clear the image data quickly by using a function like
memset.

Common cases like yuv410p10 or rgba can't be handled with a simple
memset, so there is some code to fill memory with 2/4/8 byte patterns.
For the remaining cases, a generic slow fallback is used.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Signed-off-by: Anton Khirnov <anton@khirnov.net>

Accidentally left out of 95ce02b3.

The current qsv deinterlace module does not work at all because MSDK needs user to pass
extra parameters to enable hint functions,such as denoise,deinterlace,composition and so on.

Usage:-hwaccel qsv -r 25 -c:v h264_qsv -i in -vf deinterlace_qsv=bob -b 2M
      -maxrate 3M -c:v h264_qsv -y out.h264

Signed-off-by: ChaoX A Liu <chaox.a.liu@gmail.com>
Signed-off-by: Zhengxu Huang <zhengxu.maxwell@gmail.com>
Signed-off-by: Andrew Zhang <huazh407@gmail.com>
Change-Id: I9e7ddcf884f2788c2820f6c98affacfb9d8f3287
Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>

usage:
-hwaccel qsv -c:v h264_qsv -i in -c:v mjpeg_qsv -global_quality 80 -f
mjpeg out

Signed-off-by: ChaoX A Liu <chaox.a.liu@gmail.com>
Signed-off-by: Zhengxu Huang <zhengxu.maxwell@gmail.com>
Signed-off-by: Andrew Zhang <huazh407@gmail.com>
Signed-off-by: Maxym Dmytrychenko <maxim.d33@gmail.com>

This is consistent with how other destructors behave.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

This mode apparently does not support decoding of HEVC Main (8 bit).
With D3D11 and Intel drivers on Windows 10 I get green corruption, while
using DXVA2_ModeHEVC_VLD_Main works.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

CC: libav-stable@libav.org

Otherwise the first decoded frame will still be tagged with the
original transfer instead of the alternative one.

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

glibc introduced _DEFAULT_SOURCE in version 2.19 to replace _BSD_SOURCE and
_SVID_SOURCE, which were deprecated in version 2.20. Add _DEFAULT_SOURCE
where the latter two are used to be forwards-compatible and avoid warnings
about the use of deprecated definitions.

About an additional 4% speedup.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

About 2% speedup on gcc-6.3.

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Signed-off-by: Diego Biurrun <diego@biurrun.de>

Do not use skip_remaining() to fully wipe the cache, as this could do
a 64-bit shift of a 64-bit variable which is undefined behavior in C.
Instead set the related variables to zero directly.

Thanks to Uoti for pointing out the problem.

CC: libav-stable@libav.org

This works around type aliasing violations and related warnings.
Also add some missing error checking.

Avoid anonymously typedeffed structs and enums, drop an unused context member,
fix a small wording mishap, sizeof(type) ---> sizeof(*variable), drop a
needlessly verbose log message, use av_malloc_array() where appropriate.