Re: [Mjpeg-users] Remuxing split VCD-files

[Steven M. S. <sm...@2B...>]

On Sun, 4 Jan 2004, Lehmeier Michael wrote:

> > Do you have the original source material to perform encoding from?
> 
> Alas, no.

	Sigh, I was afraid of that ;(

> > the file 'stream.dump' was correctly recognized as a MPEG-ES stream
> 
> You probably hit a lucky spot.
> Here it doesn't work.

	The test was flawed I think by using a "VOB" type of file - those
	can be cut on 2KB boundaries without too much damage,  a VCD like
	stream (such as what you have to work with) is probably corrupted
	by that method of editing.

> > If that method does not work for you then, alas, reencoding I think
> > is the only way to salvage the situation.
> 
> :(

	If mplayer can recognize the files then you can use '-vo yuv4mpeg'
	to assist in the reencoding.   I never had great success with
	mplayer getting the YUV4MPEG2 header correct though - that is why
	there is a 'yuv4mpeg' utility in mjpegtools.

	Something like this may work (I forget the PAL sample aspect ratio -
	you could probably just leave the '-a' option out and use the value
	mplayer generates):

	  mplayer -vo yuv4mpeg | yuv4mpeg -w 352 -h 288 -i t -r 25:1 -a X:Y | \
	     mpeg2enc -o output.m1v -f 1 ...

	Good Luck!

	Cheers,
	Steven Schultz