mpegvideoparse calculates wrong pixel aspect ratio
Submitted by Matej
Created attachment 350679
If there is no sequence extension or sequence display extension present gst_mpeg_video_finalise_mpeg2_sequence_header will never be called and will not calculate proper aspect ratio.
it's safe to call gst_mpeg_video_finalise_mpeg2_sequence_header without sequence extension, in which case it calculates aspect ratio from sequence header width/height and DAR.
Patch 350679, "Patch":