I've written my own H264 Framer and ByteStreamFileSource to read Annex B encoded H264 data from a file. However, I am having difficulties setting a proper value for fDurationInMicroseconds. I have been unable to determine the framerate from the video data but I know that it was encoded at 30 fps with an I-frame (nalu type = 5) every 10th frame. Furthermore, each frame is made up of 8 slices (8 separate NALUs). Thus, it would seem that the calculation for fDurationInMicroseconds would be as follows:
framerate = 30 fps => 1/30 secs/frame = 0.0333333 secs/frame = 33333 us/frame => divide by 8 for the number of slices per frame = 33333 / 8 = ~4166 us/slice However, when I set this value, the video plays back too fast. And, obviously, setting the value to 33333 makes it play back too slow. The optimal value seems to be around 10000-13000. Thanks, Abe _______________________________________________ live-devel mailing list live-devel@lists.live555.com http://lists.live555.com/mailman/listinfo/live-devel
