2.7x faster DCA decoding on Cortex-A8

Originally committed as revision 22828 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22827 to svn://svn.ffmpeg.org/ffmpeg/trunk

Optimised implementations of the synth filter will require these
arrays 16-byte aligned.

Originally committed as revision 22826 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22825 to svn://svn.ffmpeg.org/ffmpeg/trunk

when no parser is available.
This partly fixes the frame rate misdetection in issue1756.

Originally committed as revision 22824 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22823 to svn://svn.ffmpeg.org/ffmpeg/trunk

Seeking forward in non-seekable media by discarding data, regardless of how far to seek. Won't SEEK_END unless forced though.

Originally committed as revision 22822 to svn://svn.ffmpeg.org/ffmpeg/trunk

Reusing the probe buffer to rewind the ByteIOContext in ff_probe_input_buffer() instead of seeking back to the start of the file. Once exhausted, the size of the buffer is reduced.

Originally committed as revision 22821 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22820 to svn://svn.ffmpeg.org/ffmpeg/trunk

signaled to be absent.

Originally committed as revision 22819 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22818 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22817 to svn://svn.ffmpeg.org/ffmpeg/trunk

In the case of explicit non-backwards compible PS, the extension object
type should be set to SBR. See 14496-3:2009 (fourth edition).

Originally committed as revision 22816 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22815 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Elupus.

Originally committed as revision 22814 to svn://svn.ffmpeg.org/ffmpeg/trunk

Contributed by Daniel G. Taylor (dan/at/programmer-art/dot/org)

Originally committed as revision 22813 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22812 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Craig Thomasson $(name) dot $(surname) ripcode com

Originally committed as revision 22811 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22810 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Anton Khirnov <wyskas gmail com>.

Originally committed as revision 22809 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Anton Khirnov <wyskas gmail com>.

Originally committed as revision 22808 to svn://svn.ffmpeg.org/ffmpeg/trunk

r22806.

Originally committed as revision 22807 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Anton Khirnov <wyskas gmail com>.

Originally committed as revision 22806 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22805 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22804 to svn://svn.ffmpeg.org/ffmpeg/trunk

compiler warning.

Originally committed as revision 22803 to svn://svn.ffmpeg.org/ffmpeg/trunk

Fixes issue1579

Originally committed as revision 22802 to svn://svn.ffmpeg.org/ffmpeg/trunk

The status_code field is read in the fail codepath, where it could be
read uninitialized earlier. Found by clang.

Originally committed as revision 22801 to svn://svn.ffmpeg.org/ffmpeg/trunk

based on a patch by Michael Kostylev, michael.kostylev gmail com

Originally committed as revision 22800 to svn://svn.ffmpeg.org/ffmpeg/trunk

Avoid the need to use seeking for getting the file size, use fstat
instead, which is significantly faster.

See thread:
Subject: [FFmpeg-devel] [PATCH] Add support to AVSEEK_SIZE to the file protocol seek callback
Date: Fri, 2 Apr 2010 13:13:27 +0200

Originally committed as revision 22799 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22798 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22797 to svn://svn.ffmpeg.org/ffmpeg/trunk

Demuxers already do this ...

Originally committed as revision 22796 to svn://svn.ffmpeg.org/ffmpeg/trunk

Based on clang-scan report http://permalink.gmane.org/gmane.comp.video.ffmpeg.devel/107290

Originally committed as revision 22795 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22794 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22793 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22792 to svn://svn.ffmpeg.org/ffmpeg/trunk

AVERROR(ENOMEM).

AVERROR_NOMEM is deprecated and will be dropped at the next libavutil
major bump.

Originally committed as revision 22791 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 22790 to svn://svn.ffmpeg.org/ffmpeg/trunk

patch by Michael Kostylev, michael.kostylev gmail com

Originally committed as revision 22789 to svn://svn.ffmpeg.org/ffmpeg/trunk