On Wed, Apr 05, 2006 at 04:59:50PM -0700, Steven M. Schultz wrote: > > > hmmm - Cinelerra getting the field order wrong? > > > > Exactly. At least with the SVN version I fetched 1 month ago. There's a > > Ouch. One would think a problem like that would be fixed quickly, but > Cinelerra doesn't have mailinglists, etc and getting in touch with > the developer is difficult (I tried once years ago and never heard > anything).
Well, I sent an email to the mailing-list. It's now easy to get in touch with the developers. I think that bug will be quickly solved, if it's not already solved in the latest SVN version. > I didn't see that you used "--cbr" anywhere. > > From the manpage: > > NOTE: By default MPEG-2 streams (-f 3, 4, 5, 8 and 9 are VBR. Use the > --cbr option for generating CBR (Constant Bit Rate) streams. Well, in fact, I was reading an man page which is some months old. And there wasn't that option in the man page. Therefore, I though the only thing to activate CBR was to not use the -q option. And that's what I understood in the (old) Mjpeg howto available on the official website. It wasn't really clearly explained... :-/ I'll use a lower video bitrate (9600) and lower audio bitrate (224) as you suggested me. I'll test that. As regards to the B-frames, I just read this in the (NEW) man page: There should be an option to force GOP sizes that permit 2 B frames between I/P frames. Some decoders (even software) can't handle the case where I/P frames come back to back or with only 1 B frame between them. Huh !?! In fact, I worried about the missing B-frames, because in almost all the documentation I read about the mpeg2 GOP structure, there was B-frames. Anyway, you explained me there's no problem with a "B-frame less" GOP structure. Thank you. Nicolas ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid=110944&bid=241720&dat=121642 _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
