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Diffstat (limited to 'channels/chan_pjsip.c')
-rw-r--r--channels/chan_pjsip.c25
1 files changed, 14 insertions, 11 deletions
diff --git a/channels/chan_pjsip.c b/channels/chan_pjsip.c
index b8fb35c35..015cd6448 100644
--- a/channels/chan_pjsip.c
+++ b/channels/chan_pjsip.c
@@ -371,7 +371,6 @@ static struct ast_channel *chan_pjsip_new(struct ast_sip_session *session, int s
{
struct ast_channel *chan;
struct ast_format_cap *caps;
- struct ast_format *fmt;
RAII_VAR(struct chan_pjsip_pvt *, pvt, NULL, ao2_cleanup);
struct ast_sip_channel_pvt *channel;
struct ast_variable *var;
@@ -418,16 +417,20 @@ static struct ast_channel *chan_pjsip_new(struct ast_sip_session *session, int s
ast_channel_nativeformats_set(chan, caps);
- /*
- * XXX Probably should pick the first audio codec instead
- * of simply the first codec. The first codec may be video.
- */
- fmt = ast_format_cap_get_format(caps, 0);
- ast_channel_set_writeformat(chan, fmt);
- ast_channel_set_rawwriteformat(chan, fmt);
- ast_channel_set_readformat(chan, fmt);
- ast_channel_set_rawreadformat(chan, fmt);
- ao2_ref(fmt, -1);
+ if (!ast_format_cap_empty(caps)) {
+ /*
+ * XXX Probably should pick the first audio codec instead
+ * of simply the first codec. The first codec may be video.
+ */
+ struct ast_format *fmt = ast_format_cap_get_format(caps, 0);
+
+ ast_channel_set_writeformat(chan, fmt);
+ ast_channel_set_rawwriteformat(chan, fmt);
+ ast_channel_set_readformat(chan, fmt);
+ ast_channel_set_rawreadformat(chan, fmt);
+ ao2_ref(fmt, -1);
+ }
+
ao2_ref(caps, -1);
if (state == AST_STATE_RING) {