On Tuesday 07 October 2008 21:05:41 Hannu Savolainen wrote: > Stéphane Letz wrote: > > Hi, > > > > We are implementing a full duplex backend that is using separated in/ > > out devices. Basically we are following what is explained in the > > "Using separate input and output devices" section in the following > > page http://manuals.opensound.com/developer/full_duplex.html. We use a > > single thread that is doing read/write in a loop. > > > > Everything works as expected on a HDAudio card on Solaris à 48 kHz: > > read is the function that blocks and drive the audio timing. But when > > using another sample rate values (like 44.1 kHz) on the same card, > > then write is blocking and read returns immediately. > > > This is probably caused by the virtual mixer (vmix) subsystem that uses > the device at fixed 48 kHz rate. Other rates will require conversions > which make recording and playback to work in slightly different way. You > can bypass vmix by opening the device with the O_EXCL flag.
Can SNDCTL_DSP_COOKEDMODE be used instead? http://manuals.opensound.com/developer/fulldup.c.html#LOC8 Seems to do this. Yours, Yair K. _______________________________________________ oss-devel mailing list oss-devel@mailman.opensound.com http://mailman.opensound.com/mailman/listinfo/oss-devel
