At Mon, 2 Mar 2009 22:04:04 +0800, Richard Zhao wrote: > > 2009/2/23 Richard Zhao <linuxzsc@xxxxxxxxx>: > > Hi, > > > > runtime->hw.rates and runtime->hw.formats indicate the rate and > > formats hardware can support, so the user level plugins can > > auto-convert the audio data. But hardware may not support a certain > > combin of sample rate and format, and will cause hw_parm fail. In such > > case, plugin auto-convert will not work. > > How can I let userlevel know the failure conbin, so let auto-convert work? > > > > Thanks > > Richard > > > > Anybody can do me a favor please? Could you be more specific, e.g. test cases with numbers? There are some known problems with the configuration space reduction, and I think your problem is one of them, though. Basically, the config space is reduced one after one for each snd_pcm_hw_params_refine(), and the existence of a singular point makes hard to pick up the right point. If the problem is such one, currently there is no elegant solution. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
