Em Seg, 2009-06-08 às 19:06 +0100, Mark Brown escreveu:
Think about TDM mode for a minute here - there a separate configuration for the sample size on the wire opens the way to using a lower sample size in a given timeslot than the timeslot supports, reducing the need for the CPU to rewrite data. Or to put it another way, I can't see TDM mode working unless the sample size is constrained to always be exactly that desired so it seems sensible to have a standard way of doing that.
Hum... Now I understood this. If i want to use network mode with 2 different codecs, and they differ on the expected frame_size i have to use the smaller frame_size for both codecs.
And indeed, in this case the best place to setup the frame size would be on set_tdm_slot().
I'd rather come up with a cleaner way of configuring the magician case that's explicit about what it's trying to achieve. It doesn't need to be in user space, though.
I dont know how to do this other than just changing the frame size... :)