On 14/10/16 15:34, Matt Flax wrote:
Hi there,
Problem is that I need multiplex all 6 channels out a stereo I2S line.
I have a working system ... the CPU thinks it is stereo I2S, but the
codec thinks it is TDM multichannel. When I aplay a pre-interleaved
wav file, it works ! Check the video here :
https://www.kickstarter.com/projects/1250664710/1299781340?token=e465b540
Problem is that I need to multiplex all 6 channels down the stereo I2S
line. I have tried to do this with the asoundrc by attempting to
declare the same device 3 times and interleaving there, however have
failed.
Does anyone know if there is a ALSA plugin which allows multiplexing of
N channels to a single interleaved stream ?
It is simple, it seems to do the opposite and interleave multiple sound
card streams into one stream... but I can't see how to do the opposite
... have a virtual sound card of N channels which muxes down to one
stream on a stereo machine/cpu/codec line.
I am happy to alter my machine driver to implement this ... Is there a
way to present 3 stereo subdevices to the user, where each of these
subdevcies is interleaved to form the TDM before sending to the codec ?
Is there perhaps a better or more elegant way to go about this ?
thanks
Matt
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
