From edb5e50fcd52d6f0ed9d2decb5c874dfd9395998 Mon Sep 17 00:00:00 2001
From: William Hubbs <w.d.hubbs@gmail.com>
Date: Fri, 9 Oct 2009 08:56:58 -0500
Subject: [PATCH] make alsa code more readable

This changes the code to use constants for the parameters to
snd_pcm_set_params.  This makes it easier to read the code and to update
the values if needed.
---
 alsa.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/alsa.c b/alsa.c
index fa9e526..bae9798 100644
--- a/alsa.c
+++ b/alsa.c
@@ -32,6 +32,9 @@
 static pthread_mutex_t audio_mutex = PTHREAD_MUTEX_INITIALIZER;
 
 static snd_pcm_t *handle;
+static const unsigned int channels = 1;
+static const int soft_resample = 1;
+static const unsigned int latency = 125000;
 
 static void lock_audio_mutex(void)
 {
@@ -92,10 +95,10 @@ int init_audio(unsigned int rate)
 	err = snd_pcm_set_params(handle,
 		SND_PCM_FORMAT_S16_LE,
 		SND_PCM_ACCESS_RW_INTERLEAVED,
-		1,
+		channels,
 		rate,
-		1,
-		0);
+		soft_resample,
+		latency);
 	if (err < 0) {
 		fprintf(stderr, "Playback open error: %s\n", snd_strerror(err));
 		return err;