examples: webrtc: mp-sendrecv: add bus handler

Without this bus handler, messages posted to the bus will keep a ref to
their source elements, preventing them from being disposed.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/3219>
This commit is contained in:
Sam Van Den Berge 2022-10-18 15:28:32 +02:00 committed by GStreamer Marge Bot
parent 93ed51cbb2
commit 094b251901

View file

@ -119,6 +119,39 @@ get_string_from_json_object (JsonObject * object)
return text;
}
static gboolean
bus_watch_cb (GstBus * bus, GstMessage * message, gpointer user_data)
{
switch (GST_MESSAGE_TYPE (message)) {
case GST_MESSAGE_ERROR:
{
GError *error = NULL;
gchar *debug = NULL;
gst_message_parse_error (message, &error, &debug);
g_error ("Error on bus: %s (debug: %s)", error->message, debug);
g_error_free (error);
g_free (debug);
break;
}
case GST_MESSAGE_WARNING:
{
GError *error = NULL;
gchar *debug = NULL;
gst_message_parse_warning (message, &error, &debug);
g_warning ("Warning on bus: %s (debug: %s)", error->message, debug);
g_error_free (error);
g_free (debug);
break;
}
default:
break;
}
return G_SOURCE_CONTINUE;
}
static void
handle_media_stream (GstPad * pad, GstElement * pipe, const char *convert_name,
const char *sink_name)
@ -413,6 +446,7 @@ start_pipeline (void)
{
GstStateChangeReturn ret;
GError *error = NULL;
GstBus *bus = NULL;
/* NOTE: webrtcbin currently does not support dynamic addition/removal of
* streams, so we use a separate webrtcbin for each peer, but all of them are
@ -428,6 +462,10 @@ start_pipeline (void)
goto err;
}
bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
gst_bus_add_watch (bus, bus_watch_cb, NULL);
gst_object_unref (bus);
gst_print ("Starting pipeline, not transmitting yet\n");
ret = gst_element_set_state (GST_ELEMENT (pipeline), GST_STATE_PLAYING);
if (ret == GST_STATE_CHANGE_FAILURE)