[LAU] JACK and Sound OpenFirmware?

Fons Adriaensen fons at linuxaudio.org
Thu Aug 27 20:53:21 CEST 2020


On Thu, Aug 27, 2020 at 09:19:31PM +0300, Kai Vehmanen wrote:
 
> the constraint is simply that period size is a multiple of the minimum
> value. I think in the examples of this thread (which Wim quoted), JACK was
> run with stereo 32bit config, so the values would translate to:
> 
>    120 frames -> 2*4*120=960 bytes (5*192)
>    264 frames -> 2*4*264=2112 bytes (11*192)
>    504 frames -> 2*4*504=4032 bytes (21*192)
>    2040 frames ->2*4*2048=16320 bytes (85*192)

So the constraint is in *bytes*...

That makes the accepted period sizes (in samples) dependent on the sample
format and the number of channels. This seems pretty stupid (IMHO).

Ciao,

-- 
FA



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