Merge remote-tracking branch 'qatar/master'

Merge remote-tracking branch 'qatar/master'

* qatar/master: (31 commits)
  libx264: set default thread count to 0 (auto)
  lavc: cosmetics, group deprecated codec flags
  mpeg12: add 'scan_offset' private option.
  h263/p encoder: add 'structured_slices' private option.
  h263/p encoder: add 'obmc' private option.
  h263p encoder: add 'aiv' private option.
  h263p encoder: add 'umv' private option.
  mpeg12enc/mpeg4videoenc: add 'alternate_scan' private option.
  mjpegdec: add 'extern_huff' private option.
  mpeg4enc: add 'data_partitioning' private option.
  snow: add 'memc_only' private option.
  libx264: add 'mbtree' private option.
  libx264: add 'psy' private option.
  libmp3lame: add 'reservoir' private option.
  mpeg2enc: add 'non_linear_quant' private option
  mpeg12enc: add drop_frame_timecode private option.
  mpeg12enc: add intra_vlc private option.
  VC1: Support dynamic dimension changes
  mjpeg: treat external huffman table setup failure as codec init failure if external huffman table use requested
  lavc: deprecate CODEC_FLAG2_BRDO
  ...

Conflicts:
	avconv.c
	libavcodec/libmp3lame.c
	libavcodec/libx264.c
	libavcodec/mjpegdec.c
	libavcodec/mpeg12enc.c
	libavcodec/mpegvideo.h
	libavcodec/vc1.c
	libavcodec/vc1dec.c

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