Re: [Mjpeg-users] Fixed I-frame location
* Andrew Stevens writes: 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? I have tried some more now. The video is stuttering and not the sound. Playing the DVD with mplayer keeps the sync as long as you do not search forward. Searching forward by ten minutes I have an a-V delay of about 3 minutes. Playing it on my Denon DVD 900 I have the said stuttering picture and the audio is way ahead of the video. And I loose audio completely when I skip to the next chapter. So for some reason it seems necessary to keep the locations of the I-frames at the exact same location as in the original VOB. regards Markus --- This SF.NET email is sponsored by: SourceForge Enterprise Edition + IBM + LinuxWorld = Something 2 See! http://www.vasoftware.com ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] Fixed I-frame location
On Sunday 19 Jan 2003 5:53 am, Markus Plail wrote: Hi there! In order to be able to use 'mpeg2enc'oded streams in IfoEdit it is necessary to have fixed I-frame location (from what I understand). One can create a template for TMPEnc which looks like that: ... 61269,I 61281,I 61293,I 61305,I 61317,I 61329,I 61341,I 61353,I 61365,I ... Would it be possible to change mpeg2enc to only place I-frames at certain locations? Not sure what you mean by location. Do you mean I-frames must aligned at sector boundaries in the multiplexed stream? This is already done automatically. Do you mean the GOPs (Groups-Of-Pictures) must have a fixed size and B/P frame structure? Again, what you need is probably already there. However, I'm puzzled why Ifoedit would demand fixed-size/structure GOPs. It is as far as I'm aware definately *not* something required in the DVD standard... Andrew --- 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
Re: [Mjpeg-users] Fixed I-frame location
* Andrew Stevens writes: On Sunday 19 Jan 2003 5:53 am, Markus Plail wrote: In order to be able to use 'mpeg2enc'oded streams in IfoEdit it is necessary to have fixed I-frame location (from what I understand). One can create a template for TMPEnc which looks like that: ... 61269,I 61281,I 61293,I 61305,I 61317,I 61329,I 61341,I 61353,I 61365,I ... Would it be possible to change mpeg2enc to only place I-frames at certain locations? Not sure what you mean by location. Do you mean I-frames must aligned at sector boundaries in the multiplexed stream? This is already done automatically. Do you mean the GOPs (Groups-Of-Pictures) must have a fixed size and B/P frame structure? Again, what you need is probably already there. 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. However, I'm puzzled why Ifoedit would demand fixed-size/structure GOPs. It is as far as I'm aware definately *not* something required in the DVD standard... 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. 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
[Mjpeg-users] Fixed I-frame location
Hi there! In order to be able to use 'mpeg2enc'oded streams in IfoEdit it is necessary to have fixed I-frame location (from what I understand). One can create a template for TMPEnc which looks like that: ... 61269,I 61281,I 61293,I 61305,I 61317,I 61329,I 61341,I 61353,I 61365,I ... Would it be possible to change mpeg2enc to only place I-frames at certain locations? regards Markus --- This SF.NET email is sponsored by: Thawte.com - A 128-bit supercerts will allow you to extend the highest allowed 128 bit encryption to all your clients even if they use browsers that are limited to 40 bit encryption. Get a guide here:http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0030en ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
Re: [Mjpeg-users] Fixed I-frame location
Hallo In order to be able to use 'mpeg2enc'oded streams in IfoEdit it is necessary to have fixed I-frame location (from what I understand). One can create a template for TMPEnc which looks like that: Maybe you are interrested in the -c|--closed-GOPs and -P|--force-b-b-p options mpeg2enc has. auf hoffentlich bald, Berni the Chaos of Woodquarter Email: [EMAIL PROTECTED] [EMAIL PROTECTED] www: http://www.lysator.liu.se/~gz/bernhard --- This SF.NET email is sponsored by: Thawte.com - A 128-bit supercerts will allow you to extend the highest allowed 128 bit encryption to all your clients even if they use browsers that are limited to 40 bit encryption. Get a guide here:http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0030en ___ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
