If the stream is in an error state, returns the GError
explaining that state.
Any type of error can be reported here depending on the
implementation of the media stream.
A media stream in an error cannot be operated on, calls
like [method@Gtk.MediaStream.play] or
[method@Gtk.MediaStream.seek] will not have any effect.
GtkMediaStream itself does not provide a way to unset
an error, but implementations may provide options. For example,
a [class@Gtk.MediaFile] will unset errors when a new source is
set, e.g. with [method@Gtk.MediaFile.set_file].
If the stream is in an error state, returns the GError explaining that state.
Any type of error can be reported here depending on the implementation of the media stream.
A media stream in an error cannot be operated on, calls like [method@Gtk.MediaStream.play] or [method@Gtk.MediaStream.seek] will not have any effect.
GtkMediaStream itself does not provide a way to unset an error, but implementations may provide options. For example, a [class@Gtk.MediaFile] will unset errors when a new source is set, e.g. with [method@Gtk.MediaFile.set_file].