Fixes playback of some files with ffplay.
Signed-off-by: Paul B Mahol <onemda@gmail.com>

Fixes ticket #4841.

* commit 'c0a49077':
  asfdec: add more checks for size left in asf packet buffer
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '1b2412f5':
  lavc: Fix compilation with --disable-everything --enable-parser=mpeg4video
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'f00f6d53':
  lavc: Sanitize header inclusion guards
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '6064f697':
  lavc: Enable side data only packets by default
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

Allow writing an empty channel mask into the wave format header. Useful
if the input file contains an unknown channel layout.
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

Signed-off-by: Luca Barbato <lu_zero@gentoo.org>

The recent commits change the value slightly. Even though it's
within the threshold it's better to risk as little as possible
especially when different systems, processors, FPUs and compilers
are involved.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

Since TNS was fixed with the recent commits retweak the values
so it's more frequently used.
Still not enabled by default yet, though it's possible that it
will be made enabled by default in the near future.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

This commit was made possible with the earlier commits since the
new quantization method basically means we're working always with
unsigned values. The specifications mention to use compression when
the first 2 bits are identical but they didn't mention if this should
happen before or after the conversion to signed values. Actually
they said nothing about conversion to signed values.

With this commit, coefficient compression usually always happens
which saves a lot of space, especially at extremely low bitrates
and doesn't change the quality at all.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

This finally (and again) gets rid of basically everything the
specifications say about how TNS should be done. The main
problem used to be that a single filter was used for all
coefficients which despite being explicitly recommended by
the specifications usually sounds wrong, therefore it's
a corner case in the current TNS implementation.

This commit also changes the coefficient bit size, as apparently
it's better to use lower precision in case the windows are eight
short. This is apparently what fdk_aac uses, looking at the bit
stream and makes sense. Also the order when 8 SHORT windows happen
is important as 7 was too much and according to PSNR was worse
while 5 is just about correct.
Signed-off-by: Rostislav Pehlivanov <atomnuker@gmail.com>

Fix typos, add missing comments, and remove stray lines.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

Deprecate the now unused option, but temporarily retain the capability
to disable the now default behaviour.

Mention this change in the AVPacket documentation.
Signed-off-by: Vittorio Giovara <vittorio.giovara@gmail.com>

* commit '1e0b8bf0':
  travis: fix dependencies
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '99404597':
  mmaldec: fix pkt_dts determination
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '87a051f9':
  lavc: allow asynchronous decoders to return correct pkt_dts values
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'b7ab6e18':
  mmaldec: disable timestamp interpolation
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '6b652c02':
  mmaldec: fix problems with flush logic
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'b84675d6':
  mmaldec: hack against buffering problems on broken input
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '5788623d':
  jpeg2000: Split codeblock decoding from the main tile decoding
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit 'db53a230':
  jpeg2000: Do not warn about known and skippable markers
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '9b5a4a9c':
  mmvideo: Make sure the rle does not write over the frame boundaries
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '41ed749f':
  ogg: Do not try to use the parser if it is not present
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>

* commit '7b02cb29':
  pixdesc: Document the component order
Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>