idct_dc for VC-1/WMV3 decoder; ~11% faster decoding overall.Includes mmx2 asm for the various functions.Note that the actual idct still does not have an x86 SIMD implemtation.For wmv3 files using regular idct, the decoder just falls back to simple_idct,...
VC1: extend MMX qpel MC to include MMX2 avg qpel
Originally committed as revision 18519 to svn://svn.ffmpeg.org/ffmpeg/trunk
Rename libavcodec/i386/ --> libavcodec/x86/.It contains optimizations that are not specific to i386 andlibavutil uses this naming scheme already.
Originally committed as revision 16270 to svn://svn.ffmpeg.org/ffmpeg/trunk