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Diffstat (limited to 'channels/chan_sip.c')
-rw-r--r--channels/chan_sip.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c
index 6795ce2ee..97168e7ee 100644
--- a/channels/chan_sip.c
+++ b/channels/chan_sip.c
@@ -6076,6 +6076,14 @@ static void try_suggested_sip_codec(struct sip_pvt *p)
{
int fmt;
const char *codec;
+ struct ast_channel* chan;
+
+ chan = ast_channel_ref(p->owner);
+ while (ast_channel_trylock(chan)) {
+ sip_pvt_unlock(p);
+ usleep(1);
+ sip_pvt_lock(p);
+ }
if (p->outgoing_call) {
codec = pbx_builtin_getvar_helper(p->owner, "SIP_CODEC_OUTBOUND");
@@ -6083,7 +6091,12 @@ static void try_suggested_sip_codec(struct sip_pvt *p)
codec = pbx_builtin_getvar_helper(p->owner, "SIP_CODEC");
}
- if (!codec)
+ codec = ast_strdupa(S_OR(codec, ""));
+
+ ast_channel_unlock(chan);
+ chan = ast_channel_unref(chan);
+
+ if (ast_strlen_zero(codec))
return;
fmt = ast_getformatbyname(codec);