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MOI is a computer file format used primarily to represent information. MOI files are associated with MOD or TOD files whose content they represent. They are mainly used on JVC camcorders.
[edit] Format overview
| Hex offset (zero based) |
Content |
Example |
| 00-01 |
Version |
56 36 (V6) |
| 02-05 |
MOI filesize (bytes) |
00 00 01 C3 (451 bytes) |
| 06-07 |
Year |
07 D9 (2009) |
| 08 |
Month |
06 (June) |
| 09 |
Day |
1E (30th) |
| 0A |
Hour |
0B (11) |
| 0B |
Minutes |
16 (22) |
| 0C-0D |
Seconds |
in miliseconds CB 20 (52 seconds) |
| 0E-11 |
Video duration (ms) |
00 08 9D 00 (564480 ms, 9 mn 24 s 12 frames) |
| 80-83 |
Video aspect ratio and TV system |
Low nibble: 0 and 1 for 4:3, 4 and 5 for 16:9. High nibble: 4 for NTSC, 5 for PAL. |
| 84-85 |
Audio codec |
00 C1 for AC3 audio / 40 01 for MPEG audio |
| 86 |
Audio bitrate |
01 = 64kbps (in steps of 16kbps) to 0F = 640kbps |
| DA-DB |
Video bitrate |
58 96 = CBR 8.5Mbit / 81 3D = CBR 5.5Mbit |
| DD-E1 |
Video duration packets |
Video duration (ms) (0E-11) * 5A + Video bitrate (DA-DB) (may be incremented with values at offset DA-DB, but may not be for VBR MPEG video) |
| E6-E7 |
Video bitrate |
Same as at offset DA-DB |
| E9-ED |
Video duration packets |
Same as at offset DD-E1 |
| F0-F1 |
COARSE table entries (zero based) |
Count of 7 byte packets for coarse table (one 7-byte packet each 10000 milliseconds) |
| F2-F3 |
FINE table entries |
Count of 3 byte packets for fine table (one 3-byte packet each 480 milliseconds) |
| 100 - |
COARSE table |
(F0-F1) * 7 byte packets coarse table |
| - |
FINE table |
(F2-F3) * 3 byte packets fine table |
