The slice prefix is 0 in the reference encoder and the decoder ignores it.
Writing 0 there seems like the best temporary solution.

The padding could have contained uninitialized data, but reference VC2
encoders put 0xFF there, hence the memset value.

Overall this allows producing bistreams with no random data for use by fate.

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

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

Fixes "Could not find codec parameters for stream" error (#5494)
Signed-off-by: Rick Kern <kernrj@gmail.com>

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

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

Reviewed-by: Michael Niedermayer <michael@niedermayer.cc>
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

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

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

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

Fixes compilation of hevc_parser without hevc_decoder
Signed-off-by: James Almer <jamrial@gmail.com>

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

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

Fixes a misdetection in wav.detected.as.h264.error.wav
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Rick Kern <kernrj@gmail.com>

Signed-off-by: Rick Kern <kernrj@gmail.com>

Setting AVFrame.pic_type to AV_PICTURE_TYPE_I will force an I-frame.
Signed-off-by: Rick Kern <kernrj@gmail.com>

Add frames_before and frames_after as hints that there will be frames before
or after the frames produced in this session. This may help with
concatenation issues like bit rate spikes.
Signed-off-by: Rick Kern <kernrj@gmail.com>

Hint to the encoder that encoding should be done in real-time, even at the
expense of quality.
Signed-off-by: Rick Kern <kernrj@gmail.com>

Signed-off-by: Rick Kern <kernrj@gmail.com>

Some devices output an invalid DTS when B-frames aren't used. Using PTS for
the DTS in this case.
Signed-off-by: Rick Kern <kernrj@gmail.com>

Now set by the encoder, not used as an input parameter.
Signed-off-by: Rick Kern <kernrj@gmail.com>

Add an entropy setting to choose between CAVLC and CABAC.
Signed-off-by: Rick Kern <kernrj@gmail.com>

Software encoding can be allowed by setting allow_sw to 1.
Signed-off-by: Rick Kern <kernrj@gmail.com>

Handle AV_PIX_FMT_VIDEOTOOLBOX.
This results in better energy usage and faster encoding, especially on iOS.
When the buffer comes from the media server, no memcpy's are needed.
Signed-off-by: Rick Kern <kernrj@gmail.com>

This reduces the chance of a memcpy in the media server.
Signed-off-by: Rick Kern <kernrj@gmail.com>

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

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

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

Fixes ticket #5455.

reverts one hunk from 7966ddfc
The new code from 7966ddfc only covers extradata based SPS

Fixes: ffplay -ss 13 58af5798-fa2c-42a2-997d-dc8e49de2d8a.flv
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

* commit 'a7829a2a':
  h264: reimplement 3aa661ec in a more explicit way
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit 'add1467e':
  svq3: drop the build dependency on the h264 decoder
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit 'a4d126dc':
  svq3: eliminate remaining H264Context usage.
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '7bbdae81':
  svq3: move block_offset to SVQ3Context
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '1848a154':
  svq3: stop using H264Context.gb
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit 'ea6ab02a':
  svq3: move the frame num variables to the SVQ3Context
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>