[H-GEN] CD Burner software

[Paul Gearon]

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On Mon, 7 Jul 2003, Christopher Biggs wrote:

> Paul Gearon <pag at PISoftware.com> moved upon the face of the 'Net and spake thusly:
>
> > The AVI from a video camera has a video stream which is a form of "Motion
> > JPEG" (every frame is individually compressed as a seperate JPEG image).
> > I can't remember the audio type (MP3?).  The MPEG files used by VCDs are a
> > raw MPEG video stream (either MPEG-1 or MPEG-2), and a raw MPEG audio
> > stream in a seperate file.  By their nature, the raw streams are seperate
> > as they aren't in a multiplexing file (like AVI or Quicktime) to glue them
> > together.
>
> No, VCD is multiplexed into one stream.
>
> The multiplexing of video and audio into an "MPEG system stream" while
> remaining within the contstraints of the VCD format is in my
> experience the hardest thing about making VCDs.

Yeah, OK, I skipped a step.  (It's been a little while).

You *do* need to convert the video into a raw MPEG stream, and you *do*
need to convert the audio into a raw MPEG stream in a separate file.  I
stuffed up by saying that these files are what you need for a VCD.  At
this point you need to multiplex the files together into an MPEG system
stream (as Chris said) which can then be used for the VCD.  This is done
with either "mplex" from Mjpeg tools or "tcmplex"  from Transcode.

Again, I like mplex from Mjpeg tools.  It will create files compatible
with VCD and SVCD (I should check how DVD output is going, and XVCD).  It
also has options for variable bit rate multiplexing.

Regards,
Paul Gearon

Software Engineer                Telephone:   +61 7 3876 2188
Plugged In Software              Fax:         +61 7 3876 4899
http://www.PIsoftware.com        PGP Key available via finger

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immane mittam.
(Translation from latin: "I have a catapult. Give me all the money,
or I will fling an enormous rock at your head.")



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