9 Dec
2010
9 Dec
'10
10:34 p.m.
Hi everyone, I'm having some difficulty improving a full-duplex MMAP ALSA routine. ALSA sometimes reports more samples available for input than my buffer can take, or asks for more samples than I have available. Is this a buffer overrun/underrun? If I restart the streams in the case that too much input is available (on the assumption that it's an xrun) it seems to happen at the drop of a hat and makes things worse. If I discard the excess input, that doesn't work well either.
What is the appropriate way to deal with this situation? What does it mean that ALSA is offering me more samples than I have set for the buffer size?
Cheers, Louis