Merge remote-tracking branch 'qatar/master'

Merge remote-tracking branch 'qatar/master'

* qatar/master:
  lavf: make compute_pkt_fields2() return meaningful error values
  matroskadec: set timestamps for RealAudio packets.
  intelh263dec: aspect ratio processing fix.
  intelh263dec: fix "Strict H.263 compliance"  file playback
  oss,sndio: simplify by using FFMIN.
  swscale: extract monowhite/black output from yuv2packed[12X]_c().
  swscale: de-macro'ify RGB15/16/32 input functions.
  swscale: rearrange code.
  movdec: Add support for the 'wfex' atom.
  ffmpeg.c: Add a necessary const qualifier
  riff: Fix potential memleak.
  swscale: change 48bit RGB input macros to inline functions.
  swscale: change 9/10bit YUV input macros to inline functions.
  swscale: extract gray16 output functions from yuv2packed[12X]().
  swscale: use standard clipping functions.
  swscale: merge macros that are used only once.
  swscale: fix function declarations in swscale.c.
  swscale: fix function declaration keywords in x86/swscale_template.c.

Conflicts:
	ffmpeg.c
	libavcodec/intelh263dec.c
	libswscale/swscale.c
	libswscale/x86/swscale_template.c

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