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authorEric Wong <normalperson@yhbt.net>2008-09-08 20:42:51 +0200
committerMax Kellermann <max@duempel.org>2008-09-08 20:42:51 +0200
commit7d0c32b45089376f55a56f98472193a4802cba64 (patch)
tree2193a26aae81b8d20f075ac705cbb57592a82472 /src/audioOutputs/audioOutput_alsa.c
parent67c642c93501e206950f2e79a64fb334f1cb8ea3 (diff)
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alsa: move bitformat reading code out of the way
Diffstat (limited to 'src/audioOutputs/audioOutput_alsa.c')
-rw-r--r--src/audioOutputs/audioOutput_alsa.c28
1 files changed, 12 insertions, 16 deletions
diff --git a/src/audioOutputs/audioOutput_alsa.c b/src/audioOutputs/audioOutput_alsa.c
index 759ef5db4..ccde87691 100644
--- a/src/audioOutputs/audioOutput_alsa.c
+++ b/src/audioOutputs/audioOutput_alsa.c
@@ -119,6 +119,17 @@ static int alsa_testDefault(void)
return 0;
}
+static snd_pcm_format_t get_bitformat(const struct audio_format *af)
+{
+ switch (af->bits) {
+ case 8: return SND_PCM_FORMAT_S8;
+ case 16: return SND_PCM_FORMAT_S16;
+ case 24: return SND_PCM_FORMAT_S24;
+ case 32: return SND_PCM_FORMAT_S32;
+ }
+ return SND_PCM_FORMAT_UNKNOWN;
+}
+
static int alsa_openDevice(struct audio_output *audioOutput)
{
AlsaData *ad = audioOutput->data;
@@ -136,24 +147,9 @@ static int alsa_openDevice(struct audio_output *audioOutput)
unsigned int period_time, period_time_ro;
unsigned int buffer_time;
- switch (audioFormat->bits) {
- case 8:
- bitformat = SND_PCM_FORMAT_S8;
- break;
- case 16:
- bitformat = SND_PCM_FORMAT_S16;
- break;
- case 24:
- bitformat = SND_PCM_FORMAT_S24;
- break;
- case 32:
- bitformat = SND_PCM_FORMAT_S32;
- break;
- default:
+ if ((bitformat = get_bitformat(audioFormat)) == SND_PCM_FORMAT_UNKNOWN)
ERROR("ALSA device \"%s\" doesn't support %i bit audio\n",
ad->device, audioFormat->bits);
- return -1;
- }
err = snd_pcm_open(&ad->pcmHandle, ad->device,
SND_PCM_STREAM_PLAYBACK, SND_PCM_NONBLOCK);