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>

* commit '21b74693':
  svq3: eliminate H264Context.cur_pic usage
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '939b3883':
  svq3: eliminate remaining H264SliceContext usage
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '5a5db90e':
  svq3: move pict_type to the SVQ3Context
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '12f13ecb':
  svq3: move mb strides/sizes to the SVQ3Context
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

* commit 'ad9d3384':
  svq3: move the dequant buffer to SVQ3Context
Merged-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

Related to ticket #5501.

This is done by actually handling the "prev_values" in the cascaded LMS data
as if it were int16_t, thus requiring switching at various locations the
computations.

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

Fixes: m702_2.avi
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This didn't actually check if sync word was found and always errored out
with "-err_detect explode" option enabled.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

Fixes Ticket5443
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Should evaluate coefficients and raw pcm tiles.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

avcodec/mjpegdec: Do not try to detect last scan but apply idct after all scans for progressive jpeg

Fixes: IMG-20160418-WA0002.jpg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

This fixes ticket #5487 - mjpeg2jpeg bitstream filter causes
segmentation fault with header-less mjpeg.
Signed-off-by: Jan Sebechlebsky <sebechlebskyjan@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

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

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

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

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

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

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

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

Fixes Debian bug 823098.