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Clean up default rate setting and add explicit support for 48kHz.

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This commit is contained in:
Bill Currie 2011-08-11 17:22:14 +09:00
parent 5feb0454ca
commit c1a60551ae
1 changed files with 24 additions and 20 deletions
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40
libs/audio/targets/snd_alsa.c
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@ -237,32 +237,36 @@ SNDDMA_Init (void)
switch (rate) {
case 0:
rate = 44100;
err = qfsnd_pcm_hw_params_set_rate_near (pcm, hw, &rate, 0);
{
int rates[] = {
48000,
44100,
22050,
11025,
0
};
int i;
for (i = 0; rates[i]; i++) {
rate = rates[i];
Sys_MaskPrintf (SYS_SND, "ALSA: trying %dHz\n", rate);
err = qfsnd_pcm_hw_params_set_rate_near (pcm, hw,
&rate, 0);
if (0 <= err) {
frag_size = 32 * bps;
} else {
rate = 22050;
err = qfsnd_pcm_hw_params_set_rate_near (pcm, hw, &rate, 0);
if (0 <= err) {
frag_size = 16 * bps;
} else {
rate = 11025;
err = qfsnd_pcm_hw_params_set_rate_near (pcm, hw, &rate,
0);
if (0 <= err) {
frag_size = 8 * bps;
} else {
frag_size = 8 * bps * (rate / 11025);
break;
}
}
if (!rates[i]) {
Sys_Printf ("ALSA: no usable rates. %s\n",
qfsnd_strerror (err));
goto error;
}
}
}
break;
} break;
case 11025:
case 22050:
case 44100:
case 48000:
default:
err = qfsnd_pcm_hw_params_set_rate_near (pcm, hw, &rate, 0);
if (0 > err) {