Hi
On Wed, Apr 10, 2019 at 08:26:59AM +0000, S.j. Wang wrote:
Is it possible to update the table? It'd be way quicker to use lookup table than real-time calculation all the time. I believe you can simply calculate all the values out for 12KHz and 24KHz since you have the function. If there are certain combinations of these two not being supported, then we could mark it with a special value and
add an if-check to error out.
Yes, but I think the function should be more flexible, if someday we need to support Other sample rate, only need to update the list.
Given the fact that the owner of the function cannot give more comments, I feel the function wouldn't be very maintainable as none of us understands it well. On the other hand, you'll need to update the supported I/O rate lists anyway, so why not just update the table as well? The supported sample rates from ALSA are limited too. Overall, I think that continue using a lookup table wins.
Alsa support SNDRV_PCM_RATE_KNOT, we can define the rate that we want To support, and use function is more flexible, and we have use the function Internally for long time, it is stable😊