On Thu, 09 Oct 2003 10:11:56 +0200, Lehmeier Michael wrote: > For information about SVCD streams and a SVCD subtitle muxer have a look > at: > http://www.vcdimager.org/pub/vcdimager/contribs/svcd-subtitles.tar.gz > It is not complete but works 99% of the time, a good place to start.
It is, apparently, the only public source for that information. We all have read that code. The author is unknown and, apparently, it has always been considered by those in the know as only a demonstration exercise so that it could be incorporated into proper multiplexers. The author probably had access to the specification but this was all that could be leaked. The code, by the way, is very difficult to read, has a very peculiar style, very cryptic identifiers and preprocessor macros with side-effects. So instead of building on it, I used it just for inspiration and testing. > An implementation in mplex would be appreciated since once I used it but > had to generate different time-codes for every CD since mplex does the > split before I can use this subtitler. That is one of the problems. The other is that, since submux works by inserting crudely into an already multiplexed stream, it may break the scheduling that was already made by the multiplexer. The effect varies depending on the subtitle size since large subtitles have to be split in several chunks. That's why people have experimented better results when messing with the subtitle size. But they just don't know why, it is all voodoo. I think that scheduling decisions in the multiplexer have to be done by considering all multiplexed streams at the same time. Best wishes, Julio ------------------------------------------------------- This SF.net email is sponsored by: SF.net Giveback Program. SourceForge.net hosts over 70,000 Open Source Projects. See the people who have HELPED US provide better services: Click here: http://sourceforge.net/supporters.php _______________________________________________ Mjpeg-users mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/mjpeg-users
