void gtk_media_stream_stream_prepared ( GtkMediaStream* self, gboolean has_audio, gboolean has_video, gboolean seekable, gint64 duration )
GtkMediaStream implementations to advertise the stream
being ready to play and providing details about the stream.
Note that the arguments are hints. If the stream implementation
cannot determine the correct values, it is better to err on the
side of caution and return
TRUE. User interfaces will use those
values to determine what controls to show.
This function may not be called again until the stream has been
TRUEif the stream should advertise audio support.
TRUEif the stream should advertise video support.
TRUEif the stream should advertise seekability.
The duration of the stream or 0 if unknown.