avutil: Move emms code to x86-specific header
configure: Move MinGW CPPFLAGS setting to libc section, where it belongs
avutil: Ensure that emms_c is always defined, even on non-x86
h264idct: Replace duplicate scan8 table by appropriate #include
sparc: dsputil: Simplify high_bit_depth checks
Merge commit '4db96649ca700db563d9da4ebe70bf9fc4c7a6ba'

* commit '4db96649ca700db563d9da4ebe70bf9fc4c7a6ba':
  avutil: Ensure that emms_c is always defined, even on non-x86
  configure: Move MinGW CPPFLAGS setting to libc section, where it belongs
  avutil: Move emms code to x86-specific header

Conflicts:
	configure
	libavutil/internal.h

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge commit '49fe280753e0f167ac3d9f227f0c0f7744501fc1'

* commit '49fe280753e0f167ac3d9f227f0c0f7744501fc1':
  h264idct: Replace duplicate scan8 table by appropriate #include

Merged-by: Michael Niedermayer <michaelni@gmx.at>
Merge remote-tracking branch 'qatar/master'

* qatar/master:
  sparc: dsputil: Simplify high_bit_depth checks

Merged-by: Michael Niedermayer <michaelni@gmx.at>
lavfi/ebur128: fix channel weights

Correct the recognition of channel layouts for good channel weight
in the loudness computation.
This suggested patch is 2 of 3 for Ticket #2144 "libavfilter ebur128
loudness inaccuracy, irregular time interval, LFE interference".

Signed-off-by: David A. Sedacca <sedacca at comcast.net>
lavfi/ebur128: advance pointer to samples

Correct the advancement of a pointer to skip over LFE samples as
intended in the loudness computation.

This suggested patch is 3 of 3 for Ticket #2144 "libavfilter ebur128
loudness inaccuracy, irregular time interval, LFE interference".
This suggested patch supersedes the contribution of January 15, 2013
in the thread “[PATCH] lavfi: EBU R.128 irreg time, ch weights, skip
LFE” which combined multiple fixes in one batch.
doc: fix reference to ffmpeg-bitstream-filters.html page
lavfi/kerndeint: use av_pix_fmt_desc_get instead of directly accessing the table

Fixes FATE in MSVC DLL builds.

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>