>>>>> "cenobyte" == cenobyte <[email protected]> writes:
> On Wed, 23 Nov 2011 09:27:59 +0100, David Kuehling wrote: >>>>>>> "cenobyte" == cenobyte <[email protected]> writes: >> >>> I forgot to mention a tip I have found useful for making ogv >>> videos. I use ffmpeg2theora to convert clips I save from Youtube or >>> what have you to Nano size. I pass along the -x 320 -y 240 options >>> as well as the -sameq. Make sure not to use the ffmpeg syntax of -s >>> 320x240, that won't get you far. I have been experimenting with >>> ripped DVD's and have converted one to size, but it is off sync (it >>> was encoded off sync, not played back off sync). I have tried >>> passing the --sync option along but so far no luck, the program will >>> not begin encoding. >> >> ffmpeg2theora seems to have some problems with syncing against mpeg >> streams. As a workaround, you could use mencoder (i.e. the one that >> ships with mplayer) to first transcode to a losslessly compressed >> .avi file, then feed that .avi into ffmpeg2theora. Mencoder's sync >> handling is superb. The resulting .avi file will have no per-frame >> timestamps so ffmpeg2theora conversion won't introduce audio desync. >> >> mencoder -oac pcm -ovc lavc -lavcopts vcodec=huffyuv:vstrict=-1 \ -o >> intermediate.avi >> >> (maybe you'd want mencoder to already do the scaling: -vf >> scale=320:240) >> >> cheers, >> >> David > This is what I get when trying to do as you said: > cenobyte@cenobyte-901:~$ mencoder Ferngully_540x360.ogv -o > intermediate.avi -ovc lavc -oac pcm -lavcopts [..] > [HFYU]) Could not open codec. FATAL: Cannot initialize video driver. Hi, please try instead -lavcopts vcodec=ffvhuff:vstrict=-1 cheers, David -- GnuPG public key: http://dvdkhlng.users.sourceforge.net/dk.gpg Fingerprint: B17A DC95 D293 657B 4205 D016 7DEF 5323 C174 7D40
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