* qatar/master:
  x86: h264_idct: Rename x264_add8x4_idct_sse2 --> h264_add8x4_idct_sse2
  rational: add av_inv_q() returning the inverse of an AVRational
  dpx: Make start offset unsigned
  lavfi: properly signal out-of-memory error in ff_filter_samples
  cosmetics: Fix a few switched periods and linebreaks
  zerocodec: Fix memleak in decode_frame
  zerocodec: Cosmetics

Conflicts:
	ffmpeg.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

The previous method of having to initialize it outside lead
to incorrect code: even if it was initialized, it usually was
only initialized once, thus a packet that could not be matched
to any stream would just be processed with the return values
from the previous call.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

Also slightly more correct behaviour in case streams_left for
some reason is 0 from the start.
Signed-off-by: Reimar Döffinger <Reimar.Doeffinger@gmx.de>

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

This allows simplifying a few expressions.
Signed-off-by: Mans Rullgard <mans@mansr.com>

Some corrupted files would end up with a negative offset,
and segfault.

Fixes bug #177.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

We're now running some of this code through valgrind for the first
time, and a few warnings showed up stemming from two problems.

1) The ASS code assumes the subtitle header is null terminated, but
it wasn't, and passing the size down doesn't look like fun, so I
added a terminator

2) The code wasn't freeing all of its state.
Signed-off-by: Philip Langdale <philipl@overt.org>

Iam not sure this can happen, but its safer we check.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

This patch implements support reading ALAC from Matroska files. The
only non-trivial thing about it is that only the ALAC magic cookie is
stored in Matroska's CodecPrivate element but not the "atom size",
"tag" and "tag version" fields that FFMPEG's ALAC decoder
expects. However, those are trivial to re-create.

Sample files are available:
http://www.bunkus.org/videotools/mkvtoolnix/samples/alac/alac-in-matroska.mka
and the CoreAudio file it was created from with today's mkvmerge:
http://www.bunkus.org/videotools/mkvtoolnix/samples/alac/alac-in-matroska-source.cafSigned-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Remove erroneously added trailing dot.

Signed-off-by: Philip Langdale <philipl@overt.org>

Address trac ticket #1492.

Found with a clang-scan report on http://fate.libav.org/csa/

Running lib.exe without parameters will always result in an error,
and failing the check.
Using the -list paramter results in a success if lib.exe is present.

Fixes crash based on a uninitialized array index read.
If the read does not crash then out of array writes based
on the same index might have been triggered afterwards.

Found-by: inferno@chromium.org
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

Add "and" proposition for connecting two sentences.

Take the new parameter start_index into account.

The new name seems more consistent with the assumed logic.

"start_index" represents the minimum accepted value as first index, and
not the maximum value as implicitely assumed by the previous name.

This seems consistent with the assumed meaning of the option.

Use avpicture_alloc() high level function.

* qatar/master:
  lavr: fix handling of custom mix matrices
  fate: force pix_fmt in lagarith-rgb32 test
  fate: add tests for lagarith lossless video codec.
  ARMv6: vp8: fix stack allocation with Apple's assembler
  ARM: vp56: allow inline asm to build with clang
  fft: 3dnow: fix register name typo in DECL_IMDCT macro
  x86: dct32: port to cpuflags
  x86: build: replace mmx2 by mmxext
  Revert "wmapro: prevent division by zero when sample rate is unspecified"
  wmapro: prevent division by zero when sample rate is unspecified
  lagarith: fix color plane inversion for YUY2 output.
  lagarith: pad RGB buffer by 1 byte.
  dsputil: make add_hfyu_left_prediction_sse4() support unaligned src.

Conflicts:
	doc/APIchanges
	libavcodec/lagarith.c
	libavfilter/x86/gradfun.c
	libavutil/cpu.h
	libavutil/version.h
	libswscale/utils.c
	libswscale/version.h
	libswscale/x86/yuv2rgb.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>

Based on a patch by Piotr Bandurski.
Signed-off-by: Derek Buitenhuis <derek.buitenhuis@gmail.com>

With this feature, it becomes possible to perform commonly
requested tasks, such as hardcoding bitmap subtitles.

This will be reverted once libavfilter has proper support
for subtitles. All the changes have the string "sub2video"
in them, it makes it easy to spot the parts.