Re: Adding DVD-Audio support to mkisofs
> I'm developing a DVD-Audio authoring application and have now reached
> the stage of needing to add DVD-Audio support to mkisofs.
>
> My project is at http://dvd-audio.sourceforge.net and a working
> DVD-Audio authoring application is available via CVS.
Nice to see that someone did start something like this.
> Looking at the source for mkisofs, there appears to be some initial
> support for DVD-Audio (i.e. correctly sorting the files in the AUDIO_TS
> directory), but this appears to be incomplete (it doesn't take account
> of all the AUDIO_TS files such as AUDIO_PP.IFO or AUDIO_SV.IFO) and also
> only works when the -dvd-video option is enabled.
Correct.
> The main problem is that -dvd-video fails with an error when the
> VIDEO_TS directory is empty (as is the case on a pure DVD-Audio disc).
>
> The UDF requirements for DVD-Audio appear to be very similar to those
> for DVD-Video The various IFO files in the AUDIO_TS directory
> contain both relative and absolute sector pointers which need to
> correspond with the output of mkisofs if the DVD-Audio is to be playable
> on hardware players.
>
> I've described the UDF requirements in more detail, along with example
> "isoinfo -l" outputs at http://dvd-audio.sourceforge.net/spec/udf.shtml
>
> My proposal would be to extend the -dvd-video option to properly deal
> with the contents of the AUDIO_TS directory, and also deal with the case
> of the VIDEO_TS directory being empty.
>
> The DVD-Audio and DVD-Video specifications are very closely linked, and
> the specs allow a so-called "Univeral" DVD-A/V disc that contains linked
> AUDIO_TS and VIDEO_TS "zones". So even though the name -dvd-video isn't
> appropriate, I think it would be cleaner to handle both DVD-A and DVD-V
> via a single option, rather than adding a seperate -dvd-audio option.
OK
> At the moment I am concentrating on the creation of the files in the
> AUDIO_TS directory, and am able to create hardware-playable DVD-Audio
> discs with my application and mkisofs by using the -sort option to
> mkisofs and manipulating the sector pointers generated by my authoring
> program to match the output of mksiofs.
>
> I would be very happy if someone volunteered to add DVD-Audio support to
> mkisofs, and I am happy to answer any questions. Otherwise, I will look
> into adding it myself when my authoring application is more developed.
If you like to work on it yourself, please send me a mail before you start.
I did limit the time I spend on cdrtools to get more time for creating
my OpenSolaris based UNIX distribution.....
Jörg
--
EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin
js@cs.tu-berlin.de (uni)
schilling@fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/
URL: http://cdrecord.berlios.de/old/private/ ftp://ftp.berlios.de/pub/schily
Reply to: