Messages in this thread | | | Date | Sat, 20 Nov 2004 21:19:45 +0100 | From | Jens Axboe <> | Subject | Re: Is controlling DVD speeds via SET_STREAMING supported? |
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On Sat, Nov 20 2004, David Härdeman wrote: > Hi, > > currently my DVD player sounds like a jet plane when playing ordinary > audio CD's. I tried the different approaches to lowering playback speed > that are commonly used (hdparm, setspeed, etc) but none of them worked. > > Then I found this thread: > http://marc.theaimsgroup.com/?t=99366299900003&r=1&w=2 > > Which seems to indicate that DVD players need a different command > (SET_STREAMING), the thread is from 2001, and I've not been able to find > any more recent information. > > So, my question is, is this implemented in the kernel and are there any > userspace tools to set the playback speed?
I don't know of any, but it is trival to write using SG_IO (or just CDROM_SEND_PACKET for this simple use, since only a trivial amount of data involved). If you are not sure how to do it, let me know and I can easily write one in minutes.
-- Jens Axboe
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