Reviewed-by: NMichael Niedermayer <michael@niedermayer.cc>
Reviewed-by: NHenrik Gramner <henrik@gramner.com>
Signed-off-by: NJames Almer <jamrial@gmail.com>

This uses a new MMAL feature, which limits the number of extra frames
that can be buffered within the decoder. VIDEO_MAX_NUM_CALLBACKS can
be defined as positive or negative number. Positive numbers are
absolute, and can lead to deadlocks if the user underestimates the
number of required buffers. Negative numbers specify the number of extra
buffers, e.g. -1 means no extra buffer, (-1-N) means N extra buffers.

Set a gratuitous default of -11 (N=10). This is much lower than the
firmware default, which appears to be 96.

This is backwards compatible, but needs a symbol only present in newer
firmware headers. (It's an enum item, so it requires a check in
configure.)

I guess this means part 2 in both cases. Not sure which profiles exactly
are actually supported properly.

Slight simplification. The result is the same. Also, change the
wording of the message as requested in patch review.

The mmal decoders do not depend on the software decoders.

Signed-off-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '7c79587d':
  lavc: Move scenechange_threshold to codec private options
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '5764d381':
  lavc: Move chromaoffset to codec private options
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '0ac9f33a':
  lavc: Move frame_skip_* to codec private options
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '84c4714f':
  lavc: Move brd_scale to codec private options
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

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

Fixes build on msvc.

Fixes Ticket5139
Signed-off-by: NMichael Niedermayer <michael@niedermayer.cc>

This was introduced in 0e6c8532.
Signed-off-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Test target hasn't been updated with the latest changes.
Signed-off-by: NRostislav Pehlivanov <atomnuker@gmail.com>

It could accidentally divide by zero if num was zero.
Signed-off-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

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

These will be re-merged once it's been fixed properly.

This reverts:
 * Commit '8e7bea6d'
   configure: Improve requesting specific features
 * Commit 'e93aa2c9'
   configure: Force-enable select_any dependencies only on --enable
Signed-off-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Signed-off-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '0e6c8532'
  lavc: Move b_frame_strategy and b_sensitivity to codec private options
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

This is a NOOP.

* commit '55c7e5bf':
  riff: add C210 FourCC (Canopus C210)
  riff: add YUYV FourCC (Drastic YUYV)
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

* commit 'd43a165b':
  imgconvert: Add the proper API guards to a deprecated function
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

* commit 'f7168d70':
  imgconvert: Move AVPicture-related static function to the deprecated section
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '892f037c':
  imgconvert: Move the shrink functions only where needed
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

* commit '9d3ea5cb':
  imgconvert: Drop outdated comment block
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

This is a NOOP.
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

This is a NOOP.
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

This is a NOOP.
Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>

Merged-by: NDerek Buitenhuis <derek.buitenhuis@gmail.com>