Re: [VCDImager] ffmpeg & vcdimager != vcd

[Martin Rasp]

Hi.

Thanks for your answer. I'll try out those software packages.

Bye, Martin
--
> >  Maybe it's a problem with ffmpeg, but I'd like to start here. When
> > ripping a vcd (vcdrip) I get an avseq01.mpg file. Creating a new vcd
> > image out of the ripped file with vcdimager works fine. Watching VCR
> > movies thru /dev/video (framegrabber card) works fine, too.
> >
> >  Now, I'd like to grab a video sequence from that video4linux device with
> > the goal to create my own VCD. Therefore I'm using the following ffmpeg
> > command:
> >
> >  # ./ffmpeg -f mpeg -vcodec mpeg1video -vd /dev/video -b 1150 -s 352x288
> > -r 25 -acodec mp2 -ab 224 -ad /dev/dsp -ac 1 -t 10 -benchmark avseq01.mpg
> >
> >  These options should be correct for VCD 2.0 standard, shouldn't they?
>
> I think the standard involves other things besides correct frame sizes
> and bit rate. I have done a bit of googling, but I have yet to find any
> real-time mpeg encoder in Linux that *really* works. In captures by
> ffmpeg, for example, the audio and video get horribly out-of-synch after
> a few minutes.
>
> If you just want to record a video with ffmpeg, I suggest you get NVrec
> (http://www.ee.up.ac.za/~justin/v4l2/). But you still won't be able to burn
> the video to VCD.
>
> Your best bet is actually mjpegtools (http://mjpeg.sourceforge.net/).
> With this group of command-line tools, you first record to an
> mjpeg-based .avi file. You then transcode the mjpeg to VCD-compliant
> mpeg. You can even edit the mjpeg (to remove the commercials or
> advertisements) before doing the conversion.
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