* qatar/master:
dsputilenc_mmx: split assignment of ff_sse16_sse2 to SSE2 section.
dnxhdenc: add space between function argument type and comment.
x86: fmtconvert: add special asm for float_to_int16_interleave_misc_*
attributes: Add a definition of av_always_inline for MSVC
cmdutils: Pass the actual chosen encoder to filter_codec_opts
os_support: Add fallback definitions for stat flags
os_support: Rename the poll fallback function to ff_poll
network: Check for struct pollfd
os_support: Don't compare a negative number against socket descriptors
os_support: Include all the necessary headers for the win32 open function
x86: vc1: fix and enable optimised loop filter
Conflicts:
cmdutils.c
cmdutils.h
ffmpeg.c
ffplay.c
libavformat/os_support.c
Merged-by: Michael Niedermayer <michaelni@gmx.at>