21     let mut ivf = BytesMut::new();  in build_ivf_container()  localVariable
22     ivf.extend(header);  in build_ivf_container()
25         ivf.extend(frame);  in build_ivf_container()
28     ivf.freeze()  in build_ivf_container()
33     let ivf = build_ivf_container(&[]);  in test_ivf_reader_parse_valid_file_header()  localVariable
35     let r = BufReader::new(&ivf[..]);  in test_ivf_reader_parse_valid_file_header()
75     let ivf = build_ivf_container(&[valid_frame1, valid_frame2]);  in test_ivf_reader_parse_valid_frames()  localVariable
76     let r = BufReader::new(&ivf[..]);  in test_ivf_reader_parse_valid_frames()
122     let ivf = build_ivf_container(&[incomplete_frame]);  in test_ivf_reader_parse_incomplete_frame_header()  localVariable
123     let r = BufReader::new(&ivf[..]);  in test_ivf_reader_parse_incomplete_frame_header()
141     let ivf = build_ivf_container(&[incomplete_frame]);  in test_ivf_reader_parse_incomplete_frame_payload()  localVariable
142     let r = BufReader::new(&ivf[..]);  in test_ivf_reader_parse_incomplete_frame_payload()
154     let ivf = build_ivf_container(&[]);  in test_ivf_reader_eof_when_no_frames_left()  localVariable
155     let r = BufReader::new(&ivf[..]);  in test_ivf_reader_eof_when_no_frames_left()