Messages in this thread | | | From | "R. Bernstein" <> | Date | Thu, 7 Mar 2002 23:12:45 -0500 | Subject | audio channel routinng in "Linux CD-ROM Standard"? |
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I was reading ``A Linux CD-ROM Standard'' of 12 March 1999 (/usr/src/linux/Documentation/cdrom/cdrom-standard.tex) in order to understand how audio channel routing might be performed in this standard. I don't see where it would be put in.
By "audio channel routing" I mean having the left channel routed to the right (e.g. left monaural), or having the stereo channels come out reversed. In looking at a CD-playing program xmcd, I see it has a provision for a SCSI CDs to issue such a routing command, but when it uses this protocol, it unconditionally disables this ability since it doesn't seem to be part of the protocol. If you however enable CONFIG_BLK_DEV_IDESCSI the routing can be set via the SCSI passthrough ioctl mechanism -- but then why have a cdrom standard in the first place?
I don't know if this is the right place to direct inqueries as to the future of this protocol. If this would better be directed elsewhere, sorry, let me know where I should post a query. I sent a inquiry to the email addresses in A Linux CD-ROM Standard and haven't heard back from nary a one.
I am not subscribed to this forum, so I'd appreciate replies cc'd to me.
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