Patch by James Zern, jzern at google

Originally committed as revision 24430 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24429 to svn://svn.ffmpeg.org/ffmpeg/trunk

Not necessary with the previous patch.

Originally committed as revision 24427 to svn://svn.ffmpeg.org/ffmpeg/trunk

Uses a slightly nonintuitive ring buffer size of (width+height*2) to simplify
addressing logic.
Also split out the segmentation map to a separate structure, necessary to
implement the ring buffer.

Originally committed as revision 24426 to svn://svn.ffmpeg.org/ffmpeg/trunk

change of r24424.

Originally committed as revision 24425 to svn://svn.ffmpeg.org/ffmpeg/trunk

This is needed to make the libavfilter framework work with audio
filters.

In particular add a type field to AVFilterLink, change the field types:
enum PixelFormat format   -> int format   in AVFilterBuffer
enum PixelFormat *formats -> int *formats in AVFilterFormats
enum PixelFormat *format  -> int format   in AVFilterLink

and change the function signatures:
AVFilterFormats *avfilter_make_format_list(const enum PixelFormat *pix_fmts); ->
AVFilterFormats *avfilter_make_format_list(const int *fmts);

int avfilter_add_colorspace(AVFilterFormats **avff, enum PixelFormat pix_fmt); ->
int avfilter_add_format(AVFilterFormats **avff, int fmt);

AVFilterFormats *avfilter_all_colorspaces(void); ->
AVFilterFormats *avfilter_all_formats(enum AVMediaType type);

This change breaks libavfilter API/ABI.

Patch by S.N. Hemanth Meenakshisundaram |smeenaks|ucsd|edu|.

Originally committed as revision 24424 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24423 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24422 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24421 to svn://svn.ffmpeg.org/ffmpeg/trunk

messages.

Originally committed as revision 24420 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24419 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24418 to svn://svn.ffmpeg.org/ffmpeg/trunk

Gives better cache locality, since the VP8Macroblock structs are still in cache.
Inspired by the way x264 does it.

Originally committed as revision 24417 to svn://svn.ffmpeg.org/ffmpeg/trunk

As in the previous commit, they aren't used for context selection, so it saves
memory this way.

Originally committed as revision 24416 to svn://svn.ffmpeg.org/ffmpeg/trunk

In VP8, i4x4 only uses contexts based on neighbors in I-frames.

Originally committed as revision 24415 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24414 to svn://svn.ffmpeg.org/ffmpeg/trunk

Avoid edge emulation -- it isn't needed if there isn't any subpel.

Originally committed as revision 24413 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24412 to svn://svn.ffmpeg.org/ffmpeg/trunk

Saves nothing except a bit of memory/cache now, but will allow future
optimizations.

Originally committed as revision 24411 to svn://svn.ffmpeg.org/ffmpeg/trunk

~5% faster overall, probably depends on CPU and resolution.

Originally committed as revision 24410 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24409 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24408 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24407 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24406 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24405 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24404 to svn://svn.ffmpeg.org/ffmpeg/trunk

SSSE3 versions, improve SSE2 versions a bit.
SSE2/SSSE3 mbedge h functions are currently broken, so explicitly disable them.

Originally committed as revision 24403 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24402 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24401 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24400 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24399 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24398 to svn://svn.ffmpeg.org/ffmpeg/trunk

Avoid pextrw, since it's slow on many older CPUs.
Now it doesn't require mmxext either.

Originally committed as revision 24397 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24396 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24395 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24394 to svn://svn.ffmpeg.org/ffmpeg/trunk

The new library is meant to contain the core multimedia utilities for
FFmpeg, to make them shareable between more libav* libraries.

See thread:
Subject: [FFmpeg-devel] [RFC] New library for shared non-generic libav* utils
Date: Fri, 9 Jul 2010 01:07:40 +0200

Originally committed as revision 24393 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24392 to svn://svn.ffmpeg.org/ffmpeg/trunk

Patch by Axel Holzinger, aholzinger at gmx dot de

Originally committed as revision 24391 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 24390 to svn://svn.ffmpeg.org/ffmpeg/trunk