On Fri, Apr 22, 2005 at 05:13:47PM +0200, Olivier
Guilyardi wrote:
In Jackbeat, I want to include support for
realtime pitch shifting.
Can I do that in the jack process callback ? Or should I span a new
thread and do the heavy job in there, ringbuffer'ing the result to the
RT thread ?
Doing heavy jobs in the process() callback is fine, as long as the CPU
load is deterministic. I this case I think it should be.
By deterministic do you mean that the CPU time consumed by a given
process() should remain (quite) the same for each call ? Do you mean
that Jack mesures it and adapt consequently ?
Say the user starts a raw playback, and then choose to add
pitch-shifting, while playing. The CPU load would suddenly increase. Is
this bad ?
--
og