Merge commit 'f6c38c5f'

* commit 'f6c38c5f':
  avfilter: call x86 init functions under if (ARCH_X86), not if (HAVE_MMX)
  rtspdec: Set the default port for listen mode, if none is specified
  tscc2: Fix an out of array access
  rtmpproto: Fix an out of array write
  rtspdec: Fix use of uninitialized byte
  vp8: reset loopfilter delta values at keyframes.
  avutil: add yuva422p and yuva444p formats

Conflicts:
	libavutil/pixdesc.c
	libavutil/pixfmt.h
	tests/ref/lavfi/pixdesc
	tests/ref/lavfi/pixfmts_copy
	tests/ref/lavfi/pixfmts_null
	tests/ref/lavfi/pixfmts_scale
	tests/ref/lavfi/pixfmts_vflip

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