Since there is no information about the source format, "unspecified"
is the correct value to write here.

All tests using the MPEG-2 encoder are updated, as this changes the
header on all outputs.

Also enable MPEG-2 support in the trace_headers filter.

pic_num can be at most 17-bit, so uint8_t is not sufficient.

Found-By: Bradley Sepos <bradley@bradleysepos.com>
CC: libav-stable@libav.org

(cherry picked from commit b9c94e82)
Signed-off-by: Diego Biurrun <diego@biurrun.de>

DDS1 chunks are decoded in 2x2 blocks, odd chunk width or height is not
allowed in that case. Also ensure that the decode buffer is big enough
for all blocks being processed.

Bug-Id: CVE-2017-9992
CC: libav-stable@libav.org

It is not necessary to pad to the CTU size.  The CB size of 8x8 should be
sufficient, but due to constraints in the Intel driver (the one usable
implementation of this) it has to be padded to 16x16 like in H.264.

Matching the H.264 encoder.

Also improves the metadata and generally makes the configuration
a bit cleaner.

Included by default with non-IDR intra frames.

Adds a new private option to enable them (off by default).

This is able to modify some header metadata found in the VPS/SPS/VUI,
and can also add/remove AUDs.

This applies a specific fixup to some Bluray streams which contain
redundant PPSs modifying irrelevant parameters of the stream which
confuse other transformations which require correct extradata.

A new single global PPS is created, and all of the redundant PPSs
within the stream are removed.

This is able to modify some header metadata found in the SPS/VUI,
and can also add/remove AUDs and insert user data in SEI NAL units.

Supports all streams that the coded bitstream infrastructure does
(currently H.264 and H.265).

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

The use of this SEI is for backward compatibility in HLG HDR systems:
older devices that cannot interpret the "arib-std-b67" transfer will
get the compatible transfer (usually bt709 or bt2020) from the VUI,
while newer devices that can interpret HDR will read the SEI and use
its value instead.

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

Use AVCodecContext.compression_level rather than a private option,
replacing the H.264-specific quality option (which stays only for
compatibility).

This now works with the H.265 encoder in the i965 driver, as well as
the existing cases with the H.264 encoder.

This would overflow if the stream contained a value greater than the
maximum allowed by the standard (32).

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