54         let header = r.parse_file_header()?;  in new()  localVariable
56         Ok((r, header))  in new()
72         let header = IVFFrameHeader {  in parse_next_frame()  localVariable
77         let mut payload = BytesMut::with_capacity(header.frame_size as usize);  in parse_next_frame()
78         payload.resize(header.frame_size as usize, 0);  in parse_next_frame()
81         self.bytes_read += IVF_FRAME_HEADER_SIZE + header.frame_size as usize;  in parse_next_frame()
83         Ok((payload, header))  in parse_next_frame()
103         let header = IVFFileHeader {  in parse_file_header()  localVariable
116         if header.signature != IVF_FILE_HEADER_SIGNATURE {  in parse_file_header()
118         } else if header.version != 0 {  in parse_file_header()
124         Ok(header)  in parse_file_header()