diff options
Diffstat (limited to 'ext/gconf/gstswitchsink.c')
| -rw-r--r-- | ext/gconf/gstswitchsink.c | 28 |
1 files changed, 27 insertions, 1 deletions
diff --git a/ext/gconf/gstswitchsink.c b/ext/gconf/gstswitchsink.c index a39d6e19..bc09f942 100644 --- a/ext/gconf/gstswitchsink.c +++ b/ext/gconf/gstswitchsink.c @@ -116,13 +116,14 @@ gst_switch_sink_dispose (GObject * object) GST_CALL_PARENT (G_OBJECT_CLASS, dispose, (object)); } -gboolean +static gboolean gst_switch_commit_new_kid (GstSwitchSink * sink) { GstPad *targetpad; GstState kid_state; GstElement *new_kid, *old_kid; gboolean is_fakesink = FALSE; + GstBus *bus; /* need locking around member accesses */ GST_OBJECT_LOCK (sink); @@ -150,12 +151,37 @@ gst_switch_commit_new_kid (GstSwitchSink * sink) GST_DEBUG_OBJECT (sink, "Setting new kid"); } + /* set temporary bus of our own to catch error messages from the child + * (could we just set our own bus on it, or would the state change messages + * from the not-yet-added element confuse the state change algorithm? Let's + * play it safe for now) */ + bus = gst_bus_new (); + gst_element_set_bus (new_kid, bus); + gst_object_unref (bus); + if (gst_element_set_state (new_kid, kid_state) == GST_STATE_CHANGE_FAILURE) { + GstMessage *msg; + + /* check if child posted an error message and if so re-post it on our bus + * so that the application gets to see a decent error and not our generic + * fallback error message which is completely indecipherable to the user */ + while ((msg = gst_bus_pop (GST_ELEMENT_BUS (new_kid)))) { + if (GST_MESSAGE_TYPE (msg) == GST_MESSAGE_ERROR) { + GST_INFO_OBJECT (sink, "Forwarding kid error: %" GST_PTR_FORMAT, msg); + gst_element_post_message (GST_ELEMENT (sink), msg); + break; + } + gst_message_unref (msg); + } + /* FIXME: need a translated error message that tells the user to check + * her GConf audio/video settings */ GST_ELEMENT_ERROR (sink, CORE, STATE_CHANGE, (NULL), ("Failed to set state on new child.")); + gst_element_set_bus (new_kid, NULL); gst_object_unref (new_kid); return FALSE; } + gst_element_set_bus (new_kid, NULL); gst_bin_add (GST_BIN (sink), new_kid); /* Now, replace the existing child */ |