sync yasm macros to x264
Originally committed as revision 20293 to svn://svn.ffmpeg.org/ffmpeg/trunk
simd add_hfyu_left_prediction2.2x faster than C on conroe, 3.6x on penryn.4-6% faster huffyuv decoding if using left or plane mode and yuv
Originally committed as revision 20287 to svn://svn.ffmpeg.org/ffmpeg/trunk
Update x264 asm code to latest to add support for 64-bit Windows.Use the new x86inc features to support 64-bit Windows on all non-x264 nasmassembly code as well.Patch by John Adcock, dscaler.johnad AT googlemail DOT com.Win64 changes originally by Anton Mitrofanov....
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