Merge remote branch 'qatar/master'

* qatar/master:
  vp8: frame-multithreading.
Duplicate  Replace deprecated FF_*_TYPE symbols with AV_PICTURE_TYPE_*.
Duplicate  Replace deprecated av_get_pict_type_char() with av_get_picture_type_char().
Bug spoted&removed in last merge:  dpx: Do not use DPX encoder for decoding.

Conflicts:
	ffmpeg.c
	ffplay.c
	libavcodec/h264.c
	libavcodec/mpeg12.c
	libavcodec/mpeg4videodec.c
	libavcodec/mpegvideo.c
	libavcodec/mpegvideo_enc.c

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

diff --cc ffmpeg.c
Simple merge

diff --cc libavcodec/vp8.c
Simple merge

diff --cc libavcodec/vp8.h
Simple merge