Hi all. I constructed my first (acceptable) 16' movie with Cinelerra, learned a lot, but am stuck with the output.
Cinelerra was set up with 25 fps, 48000samples/sec audio. Rendering with 'Uncompressed video' was just too wideband for my machine, so I changed to mpeg4. The problem I describe persists in both cases though. The video is mostly composed by stills, and several clips made from stills, all at 25 fps. When converting from the Cinelerra format, I get a huge number of 'Skipping frame!'s. Now mencoder recognizes the output format (reports it as 25 fps), I don't specify it anywhere else, why do all the skips appear? And the sound lags video by 5 seconds after only about 20 seconds of conversion! That's a huge shift (tried several times - it seems stable). mencoder final1.mov -o final1a.avi \ -ovc lavc -oac lavc \ -lavcopts vcodec=mpeg4:mbd=1:vbitrate=300:acodec=libmp3lame \ -vf scale=320:240,harddup harddup, -noskip makes no difference. Tried _many_ variations of the above. -mc 0 disables the Skipping frame messages, but for the A/V shifting don't help, it seems. Another strange effect is that advancing/backing up the (converted) video seems to confuse the A/V difference even more. Cinelerra is recent - about 2-3 weeks, pulled from git. MEncoder SVN-r29820-4.3.3 (C) 2000-2009 MPlayer Team and all support programs are very recent too. Any suggestions? John _______________________________________________ Cinelerra mailing list [email protected] https://init.linpro.no/mailman/skolelinux.no/listinfo/cinelerra
