From 3812fa8d38d0fea3ec2f629c90e5fe943c70a926 Mon Sep 17 00:00:00 2001
From: Johns <johns98@gmx.net>
Date: Mon, 5 Mar 2012 15:06:46 +0100
Subject: [PATCH] Fix bug: AudioEnqueue crash without sound card.

---
 ChangeLog |  5 +++++
 audio.c   | 11 ++++++++---
 2 files changed, 13 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 91d05b3..e2d10d2 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+User johns
+Date:
+
+    Fix bug: AudioEnqueue crash without sound card.
+
 User johns
 Date: Sun Mar  4 22:35:36 CET 2012
 
diff --git a/audio.c b/audio.c
index d2e8323..177f1a2 100644
--- a/audio.c
+++ b/audio.c
@@ -701,7 +701,7 @@ static void AlsaThread(void)
 */
 static void AlsaThreadEnqueue(const void *samples, int count)
 {
-    if (!AlsaRingBuffer || !AlsaPCMHandle || !AudioSampleRate) {
+    if (!AlsaRingBuffer || !AlsaPCMHandle) {
 	Debug(3, "audio/alsa: enqueue not ready\n");
 	return;
     }
@@ -1552,7 +1552,7 @@ static void OssThread(void)
 */
 static void OssThreadEnqueue(const void *samples, int count)
 {
-    if (!OssRingBuffer || OssPcmFildes == -1 || !AudioSampleRate) {
+    if (!OssRingBuffer || OssPcmFildes == -1) {
 	Debug(3, "audio/oss: enqueue not ready\n");
 	return;
     }
@@ -2080,7 +2080,9 @@ static void *AudioPlayHandlerThread(void *dummy)
 	} while (!AudioRunning);
 
 	Debug(3, "audio: ----> %d ms\n", (AudioUsedBytes() * 1000)
-	    / (AudioSampleRate * AudioChannels * AudioBytesProSample));
+	    / (!AudioSampleRate
+		|| !AudioChannels +
+		AudioSampleRate * AudioChannels * AudioBytesProSample));
 
 	pthread_mutex_unlock(&AudioMutex);
 
@@ -2182,6 +2184,9 @@ static const AudioModule *AudioModules[] = {
 */
 void AudioEnqueue(const void *samples, int count)
 {
+    if (!AudioSampleRate || !AudioChannels) {
+	return;				// not setup
+    }
     if (0) {
 	static uint32_t last;
 	static uint32_t tick;