On Sun, 19 Nov 2006, Delio Pereira Guimaraes wrote: > > Do the audio and video remain in sync?... > > No, they are in sync. If there's some difference, it's only about a quarter of > a second or less. Only the movie length is shortened.
Ok - and I begin to form a theory about what is happening. > Sure, I use an almost silent pentium 233mmx running a ltsp terminal to a > server that is an Athlon 800 with 512MB of memory. I run kmail, firefox and And I thought 1GB was small :) > I think there's no problem with the DV file. I agree. > Panasonic PV330 (VHS camcorder) > Sony TRV340 (Hi8 DV camcorder) I think that's what is called a "Digital8" camcorder. I had a similar unit and it used Hi8 tapes but recorded DV format data. > The DV file is complete! It occupies about 14G in the harddisk. > I disconnect everything and then I convert it to mpeg. 12GB/hr for DV. If you're using AVI or 'dv2' instead of 'raw' then the overhead is quite a bit higher and 14GB or so per hour would be correct. > Now it generated file nat.mpeg, see size comparison with first natal_old.mpg > file with lots of parameters and second file natal.mpg with the suggested > parameters. > ========================================================== > [EMAIL PROTECTED] ~]$ ls -lrt nat*.mp*g > -rw-rw-r-- 1 delio delio 2474954752 Nov 4 23:56 natal_old.mpg > -rw-rw-r-- 1 delio delio 3488636928 Nov 5 05:49 natal_caluje_old.mpg > -rw-rw-r-- 1 delio delio 2527358976 Nov 18 17:48 natal.mpg > -rw-rw-r-- 1 delio delio 3547518976 Nov 18 23:34 natal_caluje.mpg > -rw-rw-r-- 1 delio delio 1576384512 Nov 19 14:52 nat.mpeg Those look reasonable to me. Slight variation but that is expected. > And xine showed a length of about 20 minutes! But how long does Xine need to play the file? "show a length" is not reliable for variable bitrate files! I think xine is dividing the file length by the the bitrate in the MPEG-2 header and using that as the duration of the movie. But that calculation assumes a 'constant bitrate' and does not work with variable bitrate files. > I'm now converting the file to a DV type2 using kino. I'll encode that file I always use 'raw'. Less overhead (does not have a 2nd copy of the audio data in the file) and, a little less disc space. Also with 'raw' you can do emergency or quick edits using dd" (raw DV has a frame size of 120000 bytes/frame for NTSC, 144000 for PAL) If the DV file is OK and if mpeg2enc has no bugs then I would not worry about the estimated times that xine is printing out. Cheers, Steven Schultz ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys - and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users