Some handlers of media events republish the event, i.e. change epub keeping data and type and other. Example is vidstream_event_cb in vid_port.c.It again calls pjmedia_event_publish.
The problem is pjmedia_event_publish change epub in event It affects on event_mgr_distribute_event, called by original pjmedia_event_publish. Because event->epub has changed, condition (sub->epub == ev->epub || !sub->epub) can succeed for another sub, i.e call_media_on_event in pjsua_media.c.
The way to solve it is to copy event in vidstream_event_cb(see patch) or to do it in pjmedia_event_publish
diff --git a/libs/pjproject/pjmedia/src/pjmedia/vid_port.c b/libs/pjproject/pjmedia/src/pjmedia/vid_port.c
index d7b9ecb..b934e1a 100644
--- a/libs/pjproject/pjmedia/src/pjmedia/vid_port.c
+++ b/libs/pjproject/pjmedia/src/pjmedia/vid_port.c
@@ -919,9 +919,10 @@ static pj_status_t vidstream_event_cb(pjmedia_event *event,
void *user_data)
{
pjmedia_vid_port *vp = (pjmedia_vid_port*)user_data;
-
+ pjmedia_event new_event;
+ pj_memcpy(&new_event, event, sizeof(*event));
/* Just republish the event to our client */
- return pjmedia_event_publish(NULL, vp, event, 0);
+ return pjmedia_event_publish(NULL, vp, &new_event, 0);
}
static pj_status_t client_port_event_cb(pjmedia_event *event,
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