Hi there dvbcut is a great success at allowing me to chop ads etc from programs that I capture from terrestrial digital television via mythtv. I usually * chop captured material into useful MPG files. * convert to xvid * view xvid files on the computer or on my mpeg4-compatible domestic dvd player.
I would like to be able to avoid the conversion to xvid - it just takes too long. So I'm trying to go to DVD as 'directly' as possible. I just captured from a channel that transmits in 720x576 @25fps (PAL), so I was able to use dvbcut to slice it up, then make VOB files from the resulting MPG without having to re-render or mess with anything else. The MPG files play ok on linux or windows, using mplayer, mediaplayerclassic, and other players. However, the corresponding VOB files gradually (or stepwise) lose audio sync; both when playing the VOB files on the computer, and after burning a DVD and trying to watch it in my domestic DVD player. I guess this might be because of occasional mangled blocks - the MPG players seem to be able to handle these and stay in sync (though while playing the MPG files I do notice occasional jumps or frozen frames). I am using TMPGEnc to create the VOB files. Question: should I suspect that TMPGEnc is buggy, and that a different DVD authoring system would be better at maintaining sync? or Should I give up on the idea of storing captured TV programs 'directly' to DVD because imperfections in the recorded stream will always lead to loss of sync somewhere in the processing chain? or Am I doing something wrong/forgetting some important step? Incidentally: 1) sync loss: on the DVD eventually the video is progressively _delayed_, i.e. the speech comes first and then the lips move. In the case of loss of signal due to poor reception I imagine the video signal would be more likely lost than the audio, and I would have expected the video to eventually end up preceeding the audio (because of missing video frames). Or am I completely confused? 2) I have sometimes lost sync when using dvbcut itself, but that has always been associated with error messages of some sort (due to damaged input). In the case of my recent dvd, dvbcut is not complaining, and the MPG files it creates play ok. I'm using dvbcut 0.5.3 with all available patches. Thanks brian -- _______________________________________________ Surf the Web in a faster, safer and easier way: Download Opera 9 at http://www.opera.com Powered by Outblaze ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ DVBCUT-user mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/dvbcut-user
