Req: Help with multiplexing

[FredThompson]

I ran some files through DVD2SVCD with the setting "no deinterlacing" when it should have been set for "keep interlaced."

Having realized this, I've used TMPGEnc to do a simple demultiplex and ReStream to fix the I/P flag.

I have been unable to properly multiplex the video and audio elemental streams by manually using bbMPEG.

The video is 480x480 NTSC with a high bitrate, about 5000 and the audio is 192.

DVD2SVCD must be using some setting for bbMPEG the knowledge of which elludes me.

In what manner does DVD2SVCD use bbMPEG to multiplex?

[FredThompson]

Well, I've found the answer. There is a file bbMPEG Moview Settings1.ini in the working directory which is copied to the bbMPEG directory as file default.ini. After that, it's easy to force the multiplexing using the commandline call from the DVD2SVCD log.

It would certainly appear the lines:

MuxStartTime=0
MuxStopTime=999999

configure bbMPEG to run until the source files run out.

Woohoo!!! A way to recover from improper deinterlacing mode choice.

[gerti67]

Hi FredThompson,

glad you found it out by yourself now - but it should've worked in your first approach with bbMPEG too. Perhaps you chose the wrong settings in bbMPEG's "Program Stream Settings" tab. After having picked the "SVCD" setting you should've set the "Forced muxrate" to "0" - this will automatically calculate the correct muxrate after analyzing the stream.

Seems, bbMPEG stopped multiplexing after too many bufferunderruns/overflows with your high video bitrate. DVD2SVCD is setting the forced muxrate to "0" by default - so that's why it might have worked then.

Greetz,
Gerti

[FredThompson]

Thanks for the insight.

[FredThompson]

Thanks for the insight. I'd tried entering the length of the source and that didn't work.