At Thu, 29 Mar 2007 14:01:50 +0200, I wrote: > > At Thu, 29 Mar 2007 13:55:27 +0200, > Christian F.K. Schaller wrote: > > > > Hi Takashi, > > Thanks for trying to help us with trying to resolve > > http://bugzilla.gnome.org/show_bug.cgi?id=410403. > > > > I tested a bit with a 6-channel .wav file and aplay. It seems it shows > > the same issues that we are seeing in GStreamer. Namely that if I try: > > > > aplay -D front dust51.wav > > Playing WAVE 'dust51.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, > > Channels 6 > > aplay: set_params:905: Channels count non available > > > > It correctly tells me that it doesn't support outputting this many > > channels. This is fine for GStreamer as it allows our negotiation to > > plug in a downmixing element. > > > > However if I do: > > aplay -D default dust51.wav > > Playing WAVE 'dust51.wav' : Signed 16 bit Little Endian, Rate 48000 Hz, > > Channels 6 > > > > It plays out the 'front' channels, but the remainders just get lost. So > > when outputting to default neither do alsa downmix by itself or fail > > telling you that you don't have the needed 6 channels available. > > This is expected behavior. The "default" PCM is built with plug > player which absorbs the channel / format / rate differences. The s/player/layer/ Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
