baseparse: Set the private duration before posting a duration-changed message
Otherwise an application cannot rely on a subsequent call to e.g. gst_pad_query_duration() succeeding.
This is my first patch to GStreamer; I do not have commit access.
Otherwise an application cannot rely on a subsequent call to e.g. gst_pad_query_duration() succeeding.
This is my first patch to GStreamer; I do not have commit access.