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 and Canon camcorders.
| 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
|
CB 20 (52000 milliseconds = 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 of first byte: 0 and 1 for 4:3, 4 and 5 for 16:9. High nibble of first byte: 4 for NTSC, 5 for PAL.
|
| 84-85
|
Audio codec
|
00 C1 for AC3 audio / 40 01 for MPEG audio
|
| 86
|
Audio bitrate
|
01 = 64kbit/s (in steps of 16 kbit/s) to 0F = 640kbit/s
|
| DA-DB
|
Video bitrate
|
58 96 = CBR 8.5 Mbit / 81 3D = CBR 5.5 Mbit
|
| 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 10 seconds)
|
| 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
|
