GST_MESSAGE_COND  354 gst/gstbus.c         GST_MESSAGE_COND (message) = cond;
GST_MESSAGE_COND  227 gst/gstmessage.c   GST_MESSAGE_COND (copy) = GST_MESSAGE_COND (message);
GST_MESSAGE_COND  157 gst/gstmessage.h #define GST_MESSAGE_WAIT(message)       g_cond_wait(GST_MESSAGE_COND(message),GST_MESSAGE_GET_LOCK(message))
GST_MESSAGE_COND  158 gst/gstmessage.h #define GST_MESSAGE_SIGNAL(message)     g_cond_signal(GST_MESSAGE_COND(message))