This obviates a dependency of the LJPEG encoder on mpegvideo.

Add ability to handle multiple palettes and objects simultaneously.
Each simultaneous object is given its own AVSubtitleRect.
Note that there can be up to 64 currently valid objects, but only
2 at any one time can be "presented".
Signed-off-by: Anton Khirnov <anton@khirnov.net>

When running on a 64 bit kernel, /proc/cpuinfo lists different
optional features than on 32 bit kernels (because some of them
are mandatory in the 64 bit implemenations).

The kernel does list the old features properly if they are queried
via /proc/self/auxv though - however this file is not always readable
(e.g. on most android systems). The getauxval function could also
provide the same info as /proc/self/auxv even if this file isn't
readable, but this function is not always available (and thus would
need to be loaded with dlsym for compatibility with older android
versions).

The android cpufeatures library does this slightly differently,
by assuming that these are available if the "CPU architecture"
line is >= 8, see [1] for details.

It has been suggested to include the old, non-optional features in
/proc/cpuinfo as well, but that suggested patch never was merged.
See [2] for the discussion around this suggestion.

[1] https://android-review.googlesource.com/91380
[2] http://marc.info/?l=linux-arm-kernel&m=139087240101974Signed-off-by: Martin Storsjö <martin@martin.st>

This will come in handy during dsputil splitting.

Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

Properly generate pts for the frames sent to the encoder, avoid
using private and deprecated AVStream.pts.

It makes more sense to print the timebase exactly as it is set. Also,
this avoids a divide by zero when av_dump_format() is called on a format
context before writing the header.

Signed-off-by: Anton Khirnov <anton@khirnov.net>

This fixes decoding for a sample that cannot be shared
Signed-off-by: Anton Khirnov <anton@khirnov.net>

With optimzations disabled compilers have trouble doing dead code
elimination on 'if (foo && 0)' expressions, while 'if (0 && foo)'
still works, so use the latter to avoid problems.

Bug-Id: 707

The JPEG spec requires it to be this.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

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

CC: libav-stable@libav.org
Found-by: Laurent Butti <laurentb@gmail.com>
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Adapt commit 982b596e for the arm and
aarch64 NEON asm. 5-10% faster on Cortex-A9.

get_len can overflow for specially crafted payload.
Reported-By: Don A. Baley <donb@securitymouse.com>
CC: libav-stable@libav.org

Signed-off-by: Kostya Shishkov <kostya.shishkov@gmail.com>

As indicated in the function documentation, the header MUST be
checked prior to calling it because no consistency check is done
there.

CC:libav-stable@libav.org

Fixes an invalid read past the end of avpriv_mpa_freq_tab.
Fixes divide-by-zero due to sample_rate being set to 0.

Bug-Id: 705

CC:libav-stable@libav.org