/// Gets the default stream. If the `FormatReader` has a method of determing the default stream,
/// this function should return it. Otherwise, the first stream is returned. If no streams are
/// present then None is returned.
Gets the default stream. If the `FormatReader` has a method of determing the default stream,
this function should return it. Otherwise, the first stream is returned. If no streams are
present then None is returned.
Gets the default stream . If the ` FormatReader ` has a method of determing the default stream this function should return it . Otherwise the first stream is returned . If no streams are present then None is returned .
fn default_stream(&self) -> Option<&Stream> {
        let streams = self.streams();
        match streams.len() {
            0 => None,
            _ => Some(&streams[0]),
        }
    }
fn default_stream ( & self ) -> Option < & Stream > { let streams = self . streams ( ) ; match streams . len ( ) { 0 => None , _ => Some ( & streams [ 0 ] ) , } }
Gets the default stream.
Gets the default stream .
&self