A H264 Picture Parameter Set. A syntax structure containing syntax elements
that apply to zero or more entire coded pictures as determined by the
pic_parameter_set_id syntax element found in each slice header.
A H264 slice. An integer number of macroblocks or macroblock pairs ordered
consecutively in the raster scan within a particular slice group
A H264 Sequence Parameter Set. A syntax structure containing syntax elements
that apply to zero or more entire coded video sequences as determined by the
content of a seq_parameter_set_id syntax element found in the picture
parameter set referred to by the pic_parameter_set_id syntax element found
in each slice header.