streamPrepared
Called by 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 reset via method@Gtk.MediaStream.stream_unprepared.
Since
4.4
Parameters
hasAudio
true if the stream should advertise audio support
hasVideo
true if the stream should advertise video support
seekable
true if the stream should advertise seekability
duration
The duration of the stream or 0 if unknown