Hi Andrew! * Andrew Stevens writes: >>What I think it means that frame #61269 has to be an I-frame, and >>there should be no other I-frame until frame #61281, which is the next >>I-frame. This seems to be needed in order to remux a MPEG2 video >>stream to a valid DVD structure and to not have sync issues.
>Hmmm... the picture kind should make *no difference* to sync. This >looks like one of those doing-x-happens-to-fix-y where x and y aren't >really related issues. >Anyway, where does the "template" requirement come from. Is it >something folk discovered by accident or is it something the IfoEdit >author specified. If the latter I can maybe figure out whats really >going on by asking them... If I understand thiings correctly these are the I-frames of the original stream. The newly encoded stream should have the I-frames at the exact same locations as the original. IfoEdit can create a frame template for TMPGEnc so that TMPGEnc knows where the I-frames should go. >What sync issues arise if you allow variable-size GOPs? What happens >if you simply force mpeg2enc to use a fixed GOP size of 12 (-g 12 -G >12)? Isn't this the default? >>Definitely true, but I do not author a completely new DVD, but I want >>to remux the the video together with the existing (dts/AC3) >>streams. And with a normal m2v file (produced by either TMPGEnc or >>mpeg2enc) I have stuttering sound. >Hmmm... how very peculiar. Can you send me a short snippet of a muxed >sequence that works and one that doesn't? (1 or 2MB each - enough to >hear the stutter). Sounds like something interesting is going on. What >device are you replaying on? Denon DVD 900, sometimes it's also the picture that's "stuttering". In any case it gets out of sync rapidly. I will try to upload a sample in the next days. regards Markus ------------------------------------------------------- This SF.NET email is sponsored by: FREE SSL Guide from Thawte are you planning your Web Server Security? Click here to get a FREE Thawte SSL guide and find the answers to all your SSL security issues. http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0026en _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
