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

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

On Sat, 3 Jan 2004, Lehmeier Michael wrote:

> I have several files that were originally encoded to be burned as VCD.
> 
> My problem: They have been split at a later time without care, just
> brutally hacked apart at a certain point of the file.

	:-(

> Mplayer plays them as if nothing happened.
> Now I have to demux and remux the files.
> Demuxing works without any problems, but the video stream is no longer
> recognizable by mplex (or mplayer) and is therefore useless.
> 
> Is there any way to salvage the situation without having to reencode the
> video?

	Do you have the original source material to perform encoding from?

	I tried a brief experiment on a .mpg file - I used "dd" to cut a section
	from the middle of the file (attempting to simulate the 'hacked apart'
	you mention).  Then I used mplayer to dump the video stream.

	    dd if=foo.mpg of=bar.mpg skip=23 bs=2k count=100
	    mplayer -dumpvideo bar.mpg

	the file 'stream.dump' was correctly recognized as a MPEG-ES stream
	suitable for use with mplex.

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

	Good Luck!

	Steven Schultz