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....
Put dispatch_tab in the rodata section for macho64.This fixes linking shared libavcodec, since the linker doesn't allowtext relocations in shared libraries under Darwin/x86_64.
Based on a patch by Art Clarke (aclarke xuggle com)
Originally committed as revision 17197 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