gst_base_sink_set_async_enabled 1294 libs/gst/base/gstbasesink.c       gst_base_sink_set_async_enabled (sink, g_value_get_boolean (value));
gst_base_sink_set_async_enabled  212 libs/gst/base/gstbasesink.h void            gst_base_sink_set_async_enabled (GstBaseSink *sink, gboolean enabled);