From 292b237e356371f827df7a7a0e52a7152b64bfe0 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 26 Apr 2006 15:37:13 +0000
Subject: don't allow channel positions to be specified twice in the same
 channelmap

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@801 fefdeb5f-60dc-0310-8127-8f9354f1896f
---
 src/polyp/channelmap.c | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/polyp/channelmap.c b/src/polyp/channelmap.c
index 8d642a06..38349bfa 100644
--- a/src/polyp/channelmap.c
+++ b/src/polyp/channelmap.c
@@ -277,10 +277,19 @@ int pa_channel_map_valid(const pa_channel_map *map) {
     if (map->channels <= 0 || map->channels > PA_CHANNELS_MAX)
         return 0;
 
-    for (c = 0; c < map->channels; c++)
+    for (c = 0; c < map->channels; c++) {
+        unsigned k;
+        
         if (map->map[c] < 0 ||map->map[c] >= PA_CHANNEL_POSITION_MAX)
             return 0;
 
+        /* Don't allow positions to be specified twice */
+        for (k = 0; k < c; k++)
+            if (map->map[k] == map->map[c])
+                return 0;
+            
+    }
+
     return 1;
 }
 
-- 
cgit