25 Feb
2014
25 Feb
'14
3:56 p.m.
On Tue, Feb 25, 2014 at 02:25:25PM +0100, Jörn Nettingsmeier wrote:
If the maximum channel count is always fixed by the
hardware, what
is the point of the corresponding jackd option? As I said, I don't
remember if ever doing something other than throwing the "cannot set
channel count" error...
The -i and -o options probably work on 'plug' devices (and on aloop),
but AFAIK they are useless for hw: devices.
While developing zita-alsa-pcmi I wanted to add parameters to select
channels - this just never worked, only one value (all channels)
being accepted in all of the tests I did. So now it works the opposite
way: you open the device and then read the number of channels that are
available. When using the mmap access mode it's easy enough to read/write
only the channels you want and to ignore the rest without any overhead,
so in practice this not a problem.
Ciao,
--
FA
A world of exhaustive, reliable metadata would be an utopia.
It's also a pipe-dream, founded on self-delusion, nerd hubris
and hysterically inflated market opportunities. (Cory Doctorow)