[VCDImager] Re: Another little question about Stills + mjpeg

[Andrew Stevens]

On Tuesday 02 Oct 2001 5:02 pm, you wrote:
> It's possible to make an mpeg still  with a hi-res and low-res image, like
> in the VCD Demo in VCDImager page?
 Yes.  But...

> I don't know how to do this with mjpeg, I tried with multiple input files
> to mplex, but it says that currently it supports just one video stream, I
> tried joining the .m1v or .m2v with mpeg3cat and I got a segfault again
> when mplexing... And when I try to mplex a VCD hi-res image, it says:
I changed the command-line parser and few other things.  That check is only 
there while I get a grip and getting things working again.
I'll make the necessary fixes first thing tomorrow.  

>    INFO: Stream e2: high-resolution VCD stills 40960 KB each
> **ERROR: I Can't multiplex high-res stills smaller than normal res stills -
> sorry!

You've compressed the hi-res still too much so that it is physically too 
small for the code that tries to fit it into the multiplex stream.  The 
stream format is really messy and for various reasons its a pain if the frame 
is too small!   Simply tell mpeg2enc to produce a larger still (-T 100 should 
give nice results).  N.b. you're not saving much if you make the stills 
small: various overheads are quite large.

There could be problems wit hi-res stills anyway (there're rather weird and 
quite a few changes habe been made).  I'll email when they work again!

Andrew