Video specific properties in a reference to an AVFilterBuffer. Since AVFilterBufferRef is common to different media formats, video specific per reference properties must be separated out.
< image height
< is frame interlaced
< 1 -> keyframe, 0-> not
< picture type of the frame
< qp_table stride
< qp_table size
< sample aspect ratio
< field order
< image width
See Implementation
Video specific properties in a reference to an AVFilterBuffer. Since AVFilterBufferRef is common to different media formats, video specific per reference properties must be separated out.