> Does anybody know whether Aviage can directly handle a digital audio stream (e
> .g., in PCM format) and play the stream somehow, if the stream is not from any
>  kind of mediastores but comes from the I2S bus,  thanks.

Aviage can output a PCM stream (it does so for CDDA and iPod digital audio). I don't know about the input side of things
 w/r to I2S. In a worst case scenario you could write your own MMF module(s) to handle the input side of things and when
 you plug those into io-media it should be able to play it.

Gilles

Typically we would have an io-audio driver written for an i2s PCM input.   MME 1.2 and io-media are capable of playing a
 line-in input.   You need to create the line in input mediastore which is in the documentation.