At Thu, 2 Aug 2007 17:21:21 +0000 (UTC),
Vadim Lebedev wrote:
>
> Takashi Iwai <tiwai <at> suse.de> writes:
> ....
> > > This setting is ideal for echo cancellation algorithm.
> >
> > % amixer cset iface=MIXER,name='Capture Source' 0,5
> .....
> Hi Takashi,
> Tjis is very helpful, thanks a lot....
> I wonder howvere if somoedy can post the same thing said in C?
A shorter version is:
system("amixer cset iface=MIXER,name='Capture Source' 0,5");
A longer version is something like:
snd_ctl_t *handle;
snd_ctl_elem_value_t *val;
err = snd_ctl_open(&handle, "hw", 0);
if (err < 0)
return err;
snd_ctl_elem_value_alloca(&val);
snd_ctl_elem_value_set_interface(val, SND_CTL_ELEM_IFACE_MIXER);
snd_ctl_elem_value_set_name(val, "Capture Source");
snd_ctl_elem_value_set_enumerated(val, 0, 0);
snd_ctl_elem_value_set_enumerated(val, 1, 5);
err = snd_ctl_elem_write(handle, val);
if (err < 0) {
snd_ctl_close(handle);
return err;
}
snd_ctl_close(handle);
return 0;
Takashi
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