From eec30433b68ea0e9c66cb4a947faafd6a9681f55 Mon Sep 17 00:00:00 2001
From: Johns <johns98@gmx.net>
Date: Fri, 13 Jan 2012 22:39:04 +0100
Subject: [PATCH] Fix bug: AudioFreeBytes fails if no audio ready.

---
 ChangeLog | 2 ++
 audio.c   | 6 +++---
 2 files changed, 5 insertions(+), 3 deletions(-)

diff --git a/ChangeLog b/ChangeLog
index 453d3ad..38e9889 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,6 +1,8 @@
 User johns
 Date:
 
+    Fix bug: AudioFreeBytes didn't check if audio running/compiled.
+    Fix bug: snd_pcm_state: Assertion `pcm' failed.
     Add support for fullscreen and fullscreen toogle.
     Instant update deinterlace configuration changes.
     Fix subtitle position.
diff --git a/audio.c b/audio.c
index c7f04b1..1ef155c 100644
--- a/audio.c
+++ b/audio.c
@@ -1735,12 +1735,12 @@ void AudioPoller(void)
 int AudioFreeBytes(void)
 {
 #ifdef USE_ALSA
-    return RingBufferFreeBytes(AlsaRingBuffer);
+    return AlsaRingBuffer ? RingBufferFreeBytes(AlsaRingBuffer) : INT32_MAX;
 #endif
 #ifdef USE_OSS
-    return RingBufferFreeBytes(OssRingBuffer);
+    return OssRingBuffer ? RingBufferFreeBytes(OssRingBuffer) : INT32_MAX;
 #endif
-    return -1;
+    return INT32_MAX;			// no driver, much space
 }
 
 /**