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MoH: Don't restart stream on repeated start calls

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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/
........

Merged revisions 416150 from http://svn.asterisk.org/svn/asterisk/branches/1.8


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/11@416151 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kinsey Moore
2014-06-13 13:08:32 +00:00
parent 11553fd489
commit 71c9c7612e
1 changed files with 7 additions and 5 deletions
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12
res/res_musiconhold.c
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@@ -1360,7 +1360,7 @@ static int local_ast_moh_start(struct ast_channel *chan, const char *mclass, con
struct mohclass *mohclass = NULL;
struct moh_files_state *state = ast_channel_music_state(chan);
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:
@@ -1558,10 +1558,12 @@ static int local_ast_moh_start(struct ast_channel *chan, const char *mclass, con
ast_set_flag(ast_channel_flags(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");