initial commit log message.

Originally committed as revision 6641 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6640 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6639 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6638 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6637 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6636 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6635 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6634 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6633 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6632 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6631 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6630 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6629 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6628 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6627 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6626 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6625 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6624 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6623 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6622 to svn://svn.ffmpeg.org/ffmpeg/trunk

(was duplicated in libavcodec/ppc/vc1dsp_altivec.c
nd libavcodec/ppc/mpegvideo_altivec.c, and will be
used in upcoming routines for h264_altivec.c)

Originally committed as revision 6621 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6620 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6619 to svn://svn.ffmpeg.org/ffmpeg/trunk

moving another bit&1 out, this is as fast as with it in there, but it makes more sense with it outside of the loop

Originally committed as revision 6618 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6617 to svn://svn.ffmpeg.org/ffmpeg/trunk

move the &1 out of the asm so gcc can optimize it away in inlined cases (yes this is slightly faster)

Originally committed as revision 6616 to svn://svn.ffmpeg.org/ffmpeg/trunk

this is faster on P3, should be faster on AMD, and should be slower on P4
its disabled by default (benchmarks welcome so we know when to enable it)

Originally committed as revision 6615 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6614 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6613 to svn://svn.ffmpeg.org/ffmpeg/trunk

reading 8bit mem into a 8bit register needs 2 uops on P4, 8bit->32bit with zero extension needs just 1

Originally committed as revision 6612 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6611 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6610 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6609 to svn://svn.ffmpeg.org/ffmpeg/trunk

slightly faster on P3

Originally committed as revision 6608 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6607 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6606 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6605 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6604 to svn://svn.ffmpeg.org/ffmpeg/trunk

Originally committed as revision 6603 to svn://svn.ffmpeg.org/ffmpeg/trunk

first try of a handwritten get_cabac() for x86, this is 10-20% faster on P3 depening on if you try to subtract the START/STOP_TIMER overhead

Originally committed as revision 6602 to svn://svn.ffmpeg.org/ffmpeg/trunk