[svn-commits] kmoore: branch 1.8 r416150 - /branches/1.8/res/res_musiconhold.c

[SVN commits to the Digium repositories]

Author: kmoore
Date: Fri Jun 13 08:03:35 2014
New Revision: 416150

URL: http://svnview.digium.com/svn/asterisk?view=rev&rev=416150
Log:
MoH: Don't restart stream on repeated start calls

Currently, music on hold will stop and then start again from the
beginning if ast_moh_start() is called multiple times. This can happen
if a call is put on hold repeatedly (the channel receives multiple
HOLD control frames) and can be triggered from ARI by starting MoH on a
channel multiple times. This is fairly jarring/annoying to users.

This change prevents MoH from being restarted if the requested music
class is the same as the one currently playing.

Review: https://reviewboard.asterisk.org/r/3615/

Modified:
    branches/1.8/res/res_musiconhold.c

Modified: branches/1.8/res/res_musiconhold.c
URL: http://svnview.digium.com/svn/asterisk/branches/1.8/res/res_musiconhold.c?view=diff&rev=416150&r1=416149&r2=416150
==============================================================================
--- branches/1.8/res/res_musiconhold.c (original)
+++ branches/1.8/res/res_musiconhold.c Fri Jun 13 08:03:35 2014
@@ -1320,7 +1320,7 @@
 	struct mohclass *mohclass = NULL;
 	struct moh_files_state *state = chan->music_state;
 	struct ast_variable *var = NULL;
-	int res;
+	int res = 0;
 	int realtime_possible = ast_check_realtime("musiconhold");
 
 	/* The following is the order of preference for which class to use:
@@ -1518,10 +1518,12 @@
 
 	ast_set_flag(chan, AST_FLAG_MOH);
 
-	if (mohclass->total_files) {
-		res = ast_activate_generator(chan, &moh_file_stream, mohclass);
-	} else {
-		res = ast_activate_generator(chan, &mohgen, mohclass);
+	if (!state || strcmp(mohclass->name, state->class->name)) {
+		if (mohclass->total_files) {
+			res = ast_activate_generator(chan, &moh_file_stream, mohclass);
+		} else {
+			res = ast_activate_generator(chan, &mohgen, mohclass);
+		}
 	}
 
 	mohclass = mohclass_unref(mohclass, "unreffing local reference to mohclass in local_ast_moh_start");