-pub fn create_muxer<'a>(mxcr: &dyn MuxerCreator, str: StreamManager, bw: &'a mut ByteWriter<'a>) -> MuxerResult<Muxer<'a>> {
+pub fn create_muxer<'a>(mxcr: &dyn MuxerCreator, strmgr: StreamManager, bw: &'a mut ByteWriter<'a>) -> MuxerResult<Muxer<'a>> {