Bug 461281 - libsydney audio changes to stop stderr spam - rs=roc

media/libsydneyaudio/README_MOZILLA

@@ -5,4 +5,4 @@ the Mozilla build system.
 
 http://svn.annodex.net/libsydneyaudio/trunk
 
-The svn revision number used was r3731. 
+The svn revision number used was r3733.

media/libsydneyaudio/src/sydney_audio_alsa.c

@@ -55,6 +55,21 @@ struct sa_stream {
   unsigned int      period_bytes;
 };
 
+/*
+ * -----------------------------------------------------------------------------
+ *  Error Handler to prevent output to stderr
+ *  ----------------------------------------------------------------------------
+ */
+static void
+quiet_error_handler(const char* file,
+                    int         line,
+                    const char* function,
+                    int         err,
+                    const char* format,
+                    ...)
+{
+}
+
 /*
  * -----------------------------------------------------------------------------
  * Startup and shutdown functions
@@ -116,6 +131,9 @@ sa_stream_open(sa_stream_t *s) {
     return SA_ERROR_INVALID;
   }
 
+  /* Turn off debug output to stderr */
+  snd_lib_error_set_handler(quiet_error_handler);
+
   if (snd_pcm_open(&s->output_unit, 
                    "default", 
                    SND_PCM_STREAM_PLAYBACK,