[alsa-devel] [PATCH 4/6] compress: add API header and driver header files

Pierre-Louis Bossart pierre-louis.bossart at linux.intel.com
Mon Dec 5 15:14:13 CET 2011

> > > Can we add number of compress streams supported in DSP?
> >
> > You are confusing number of formats supported with number of streams
> supported.
> > The latter is exposed through the actual devices supported.
> No, DSP may be able to support only so many simultaneous streams at any
> point of time.
> Yet, DSP can support any number of formats. Though the device entry may
> be created for
> each compressed stream, how will the user space programs get the number
> of compressed streams supported?

The answer has already been provided. I agree with Mark there's no reason
why this API would need to provide resource management capabilities, it'd
need to be handled with a separate interface addressing PCM and effects as
well. In the mean time user-space can put product-specific restrictions on
concurrent decoding.

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