[empathy: 13/23] audio-src: add comment about values for unknown values

[Jonny Lamb <jonnylamb src gnome org>]

commit 7a58752393cb6ca9f55c2824ebab0c7a71311ff8
Author: Jonny Lamb <jonny lamb collabora co uk>
Date:   Wed Jul 27 17:50:15 2011 +0100

    audio-src: add comment about values for unknown values
    
    Signed-off-by: Jonny Lamb <jonny lamb collabora co uk>

 src/empathy-audio-src.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)
---
diff --git a/src/empathy-audio-src.c b/src/empathy-audio-src.c
index 7403d9c..3fa614f 100644
--- a/src/empathy-audio-src.c
+++ b/src/empathy-audio-src.c
@@ -66,7 +66,9 @@ struct _EmpathyGstAudioSrcPrivate
   pa_context *context;
   GQueue *operations;
 
+  /* 0 if not known yet */
   guint source_output_idx;
+  /* G_MAXUINT if not known yet */
   guint source_idx;
 
   gdouble peak_level;