I am at my wits end trying to figure out how
period_size is being calculated in pcm_native
layer based on period_size and period_count
being set by the userspace.
I am using tinycap to capture the audio and
setting below settings:
bitwidth = 16
rate = 16000
channel = 1
period_size = 320
period_count = 2
I am wondering how is below
period_size and buffer_size calculated?
Shouldn't period_size of 320 bytes and
period_count of 2 fail?
cat sub0/hw_params
access: RW_INTERLEAVED
format: S16_LE
subformat: STD
channels: 1
rate: 16000 (16000/1)
period_size: 2042
buffer_size: 4084
And this is my settings in pcm_hardware structure:
static struct snd_pcm_hardware s1000_pcm_hw = {
.buffer_bytes_max = 1024*1024,
.period_bytes_min = 4084,
.period_bytes_max = (1024*1024)/2,
.periods_min = 2,
.periods_max = 32,
};
_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxx
http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
