The ordinary ~2500 kb/s SVCDs and corresponding 37-45 minute 352x576 XSVCDs have been OK. But the in the few ~60 minute XSVCDs I have made the audio has been ad 1 second out-of-sync with the video and the error seems to somewhat fluctuate in time so some parts the audio is almost in sync.
I have used 224 kb/s 48 kHz audio with the XSVCD with either 48 kHz AIF or WAF as input but both are somewhat out-of-sync so the input seems to be not the problem.
The video and audio lengths are identical (with at least 1 second precision on a 60 minute video -- how can I check them more precisely?) before multiplexing.
For example, I have encodeded 59 minute video with: ppmtoy4m -v 0 -S 420_mpeg2 -L -I b -F 25:1 mpeg2enc -v 0 -f 5 -F 3 -n p -a 2 -b 1484 -I 1 -r 16 -q 7 -V 224 -g 9 -G 15
I have noticed that extremely large video buffers tend to get audio out-of-sync but I guess -V 224 should be OK.
Should I just encode video in smaller chunks or is there something else I could try?
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