Query for snd_pcm_readi function.

[Jaroslav Kysela]

On 06. 09. 22 15:28, Web X wrote:
> Hi,
> 
> I am using alsa open source library for my project to read and write audio
> data.
> 
> For that I am using snd_pcm_readi function to read audio data. I am able to
> read audio data.
> 
> But issue is that sometimes it will take so much time to read data.(200-230
> msec).
> Normally this function executed in 1-3 ms that is normal case, but after
> every 2-4 frames it is taking 200-300 msec.
> So this is affecting my whole application process.
> 
> I have also try to set this call as nonblock with the help of
> snd_pcm_nonblock function. With that I have observed some improvements but
> still after 2-3 frames it is taking 100msec time to get a data.
> 
> Please do needful as soon as possible.
> 
> Let me know if you want more details.

This question is handled in this github issue:

https://github.com/alsa-project/alsa-lib/issues/270

						Jaroslav

-- 
Jaroslav Kysela <perex at perex.cz>
Linux Sound Maintainer; ALSA Project; Red Hat, Inc.