Use the appropriate metadata filter for each codec - in the absence of any
options to modify the stream, the output bitstream should be identical to
the input (though the output file may differ in padding).

All tests use conformance bitstreams, the MPEG-2 streams are newly added
from the conformance test streams
<http://standards.iso.org/ittf/PubliclyAvailableStandards/ISO_IEC_13818-4_2004_Conformance_Testing/Video/>

(cherry picked from commit 3cae7f8b9b)
(cherry picked from commit fbd63170bc)

(cherry picked from commit 10eb496d9a)

Matching the H.264 encoder.

(cherry picked from commit e3e8eab359)

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

(cherry picked from commit ac12486714)

This should be ticks, not time_scale steps - it was wrong for all
framerates not a multiple of 1/2.

(cherry picked from commit 30645174e3)

Included by default with non-IDR intra frames.

(cherry picked from commit a49ee60d5f)

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

(cherry picked from commit 820a4483af)

(cherry picked from commit 7a4fac5e91)

(cherry picked from commit b78c30d7ec)

This will be used later in both the mpeg2_metadata filter and the
VAAPI MPEG-2 encoder.  Also adds a unit test.

(cherry picked from commit b5859e0b04)

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

(cherry picked from commit b31a9eae02)

This applies a specific fixup to some Blu-ray 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.

(cherry picked from commit e6874bc3af)

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.

(cherry picked from commit 9e93001b61)
(cherry picked from commit c42b62d1f9)

Supports all streams that the coded bitstream infrastructure does
(currently H.264, H.265 and MPEG-2).

(cherry picked from commit f11d8a5e8b)

(cherry picked from commit 2bc9ba8d3c)
(cherry picked from commit a41b69b5eb)

(cherry picked from commit 867381b8b5)
(cherry picked from commit f763489364)
(cherry picked from commit 067a9ddeb8)

(cherry picked from commit acf06f4544)
(cherry picked from commit 768eb9182e)
(cherry picked from commit e7f64191b2)

(cherry picked from commit 18f1706f33)
(cherry picked from commit 44cde38c8a)

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.

(cherry picked from commit b88da98b34)

With comments describing the derivation of each value.

(cherry picked from commit aaf4414650)

* commit '0429f01e4722b8e0c3576a4810a16ca8f6dbc4d4':
  mkv: Export bounds and padding from spherical metadata

This commit is a noop, see bde9642268

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

* commit '251849f06ce36ce8dc076e0fca2922119fa7e39e':
  mkv: Add support for Spherical Video elements

See 445204cd57

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

* commit 'a825980f9f93af32c719497f9aab1e14248ab471':
  mov: Export bounds and padding from spherical metadata
  spherical: Add tiled equirectangular type and projection-specific properties
  mov: Validate cubemap layout

This commit is a noop, see
ac8c72f8f1
1b7ffddb3a
022b4ea583

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

QuickTime does not require the (unknown) kuki chunk for decoding.

* commit '0f8512c4a87b89b4694053d8ffda48066ee1da62':
  mov: Validate spherical metadata version

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

* commit '236577230051ad61ec67fa2d68e817d54232d2a0':
  mov: Ignore old spherical metadata when newer version is present

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

* commit '17adcc40adf1f30cba55c9727dabc1365944d32b':
  mov: Fix spherical metadata_source parsing

This commit is a noop, see b9f2f93261

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

* commit '81bffae368f331b6cd386a814f225a58e3f32f40':
  configure: Check for -no_weak_imports in ldflags on macOS

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

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

Fixes ticket #6740

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

This has been unused for a long time, and the original purpose has been
replaced by the per-stream hwaccel_flags.

Signed-off-by: Jun Zhao <jun.zhao@intel.com>
Signed-off-by: Mark Thompson <sw@jkqxz.net>

Should fix ticket #6738

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

Signed-off-by: Tom Butterworth <bangnoise@gmail.com>

Signed-off-by: Tom Butterworth <bangnoise@gmail.com>

this func encode the alpha channel of the rgba input
to an rgtc1u block

Signed-off-by: Tom Butterworth <bangnoise@gmail.com>

this func decode an rgtc1 texture and overwrite only the alpha channel
of the dest RGBA picture

Signed-off-by: Tom Butterworth <bangnoise@gmail.com>

Should be more complete than the now fallback checks.

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

3% faster

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

32% faster loop

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

Fixes: runtime error: signed integer overflow: 2 * -1094995530 cannot be represented in type 'int'
Fixes: 3512/clusterfuzz-testcase-minimized-4812747210489856

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

Fixes: Timeout
Fixes: 3529/clusterfuzz-testcase-5057068371279872

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

Should prevent some options from being added to cflags when they
don't exist and the compiler only warns about it.

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

The library has several dependencies that vary between systems.
Their pkg-config properly lists them all.

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

Debugged with the help of Reino Wijnsma.

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

Two of them are missing it in their pkg-config file, so adding it
here is a workaround until said pkg-config files are fixed.

Debugged with the help of Reino Wijnsma.

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

Signed-off-by: Daniel Kucera <daniel.kucera@gmail.com>
Signed-off-by: wm4 <nfxjfg@googlemail.com>

Should fix checks with static builds.

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

Fixes regression since 6dfcbd80ad
and 734ed38931.

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

Correct typo in signalstats filter section and qualify description for variable
in select filter.

Signed-off-by: Gyan Doshi <gyandoshi@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Pack the data to half word before clipping.
Use immediate unsigned saturation for clip to max saving one vector register.

Signed-off-by: Kaustubh Raste <kaustubh.raste@imgtec.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>