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View Full Version : Maintaining 3GPP Sync!?


tomb2
20th January 2005, 09:52
Compressing 3GPP (H.263 / AMR) for the new video-enabled cell phones is like stepping backwards to prehistoric PDA times. All of a sudden 80 Kbs streams can tax your processor and wack your audio sync! I am losing a frame per minute when I edge past the 64Kbs/sec limit of these phones - but I find that doubling the video bitrate is the difference between an unwatchable file and a pretty good one. Of course the index is intact, so you can resync by hitting pause/play but that is insane. So the question: is there a way to force a phone's player to read the index regularly to hold sync other than a manual pause? Appending smaller clips together would seem to do this - but nobody seems to have come up with a way of joining 3GPP clips yet. Any thoughts?

bond
20th January 2005, 12:22
use a lower framerate?

tomb2
20th January 2005, 21:54
Bond I am at 10fps, don't really what to go lower than that. I guess I could just keep hitting the pause/play button to re-index the file but that seems like a silly thing to have to do.