It is currently Wed, 22 May 2013 07:41:10 GMT



 
Author Message
 CD-ROM driver / VideoCD / MPEG

Good question!

The answer is MpegTV can, but you'd have to find a way to feed MpegTV
with
the MPEG-1 Systems bitstreams that are on the VideoCD, and that's not
easy.

The problem is that those bitstreams are located on mode-2 form-2
sectors.
Although those files are visible in the directory structure when you
mount the VideoCD, all the Linux CD-ROM drivers that I have seen
are not capable of reading those files properly: if you read them,
the driver will not read the entire mode-2 form-2 sectors, and
the data that will be read are only parts of the file (this is because
the CD-ROM driver is not aware that the sectors are organised
differently than regular CD-ROM sectors).

It would be great if someone could modify the CD-ROM drivers so that
when a file is located on mode-2 form-2 sectors, the driver would
recognise that this is likely to be a VideoCD and return the
MPEG bitstream when the file is read (with the normal read()
system call).

This is a "call for volunteer" :-)

Regards,

-- Tristan Savatier (mailto:tris...@mpeg.org - http://www.**-**.com/ )
   "My karma ran over my dogma"



 Sat, 24 Apr 1999 03:00:00 GMT   
 CD-ROM driver / VideoCD / MPEG

Nearly impossible, at least using a normal read. The XA-Form2 sectors
length is'nt 2^n (but 23??), and that's why you run hard in trouble
with the buffer/page cache.

  Gerd

--
Gerd Knorr <kra...@cs.tu-berlin.de> | http://wwwwbs.cs.tu-berlin.de/~kraxel/



 Sun, 25 Apr 1999 03:00:00 GMT   
 
   [ 2 post ] 

Similar Threads

1. Tool for fetching mpeg system streams from videocd...

2. Problem with viewing mpeg and VideoCD

3. Toshiba CDROM can't read videoCD

4. TEAC CD-55A CD-ROM driver????

5. can't install linux- cd didn't come with driver for cd-rom

6. Driver for Acer CD-525E CD-ROM

7. Acer CD-525E CD-ROM drivers?


 
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group.
Designed by ST Software