Hi, Johannes Stezenbach wrote: >>AFD information appears in the video stream after user data startcodes >>(0x000001B2) and these appear before picture start codes (0x00000100). > > User data and thus AFD can be in other places, too (in theory, I have > no practical experience). Described in the MPEG-2 video spec. You are right, there are 3 places for user data: user data 0 is in front of a group start code, user data 1 appears in front of the picture start code and user data 2 is before the first slice start code. But all of them should typically be within 2048 bytes when cVideoRepacker starts a new PES packet just after the last slice of a picture. Bye. -- Dipl.-Inform. (FH) Reinhard Nissl mailto:rnissl@xxxxxx