Hi, > In cinelerra I render seperate mpeg2 audio/video files > to be joined with 'mplex -f 8' > > tcprobe reports the resulting .m2v file from cinelerra > as 29.97 fps. both of these files are fine as far as > I can tell. > > the weird part is: > > if I then multiplex the audio and the video stream > together with either 'mplex -f 8' or 'tcmplex' and run > tcprobe on the .mpg file generated (to be burned to > DVD), it is reported as 23.97fps!
What does mplex report what it thinks the streams are? The whole thing sounds like a 3:2 pull-down issue. In NTSC 3:2 pull-down material you decode at 23.97 frames per second but because every 2nd frame has one field output twice the output frame rate is 29.97. > the video actually plays fine on the computer, but on > my dvd player it looks like the frames are blended > somehow (motion is consistently jerky). for example, > one shot of someone throwing a ball, if paused, shows > two balls on the screen at once (like its being > duplicated somehow?) people walking around look all > spastic and jerky.. Ouch... sounds like incorrect field polarity handling... > any ideas what might be going wrong? I'd almost guess > it was a bug in mplex or tcmplex, but they've worked > for other stuff fine on this box before... this seems > like something really obvious I am missing Check if the original material is 3:2 pull down and make sure this (and the field polarity) is being passed on correctly to the encoder. Andrew > -Dom > > p.s. please CC me replies, I'm not subscribed > > ===== > Dominic C. [binary1230(AT)yahoo.com] > http://einsteinsbreakfast.com > > > > __________________________________ > Do you Yahoo!? > Yahoo! Mail - 250MB free storage. Do more. Manage less. > http://info.mail.yahoo.com/mail_250 > > > ------------------------------------------------------- > This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting > Tool for open source databases. Create drag-&-drop reports. Save time > by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. > Download a FREE copy at http://www.intelliview.com/go/osdn_nl > _______________________________________________ > Mjpeg-users mailing list > Mjpeg-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/mjpeg-users ------------------------------------------------------- This SF.Net email is sponsored by: IntelliVIEW -- Interactive Reporting Tool for open source databases. Create drag-&-drop reports. Save time by over 75%! Publish reports on the web. Export to DOC, XLS, RTF, etc. Download a FREE copy at http://www.intelliview.com/go/osdn_nl _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
