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Refer the instruction manual for detailed infomation.
2.5. JPEG File Format Sent Out by the camera
JPEG file from the camera is JFIF compliant and consist of the following.
FFD8
Start Code
FFE0
Application Segment
FFFE
Comment Segment 1
FFFE
Comment Segment 2 (reserved)
FFC4
DHT Huffman Table
FFDB
DQT Quantization Table
FFDD
DRI Restart Interval
FFC0
SOF Frame Information
FFDA
Data Start Segment
FFD9
End Code
The following information is stored in the comment segment 1. Each item has a fixed length.
Item Size Example Note
Version Information
9 JVC V1.0
Indicates the version of
information stored in the
comment segment.
File Size
18 size = 123456
Indicates JPEG size in bytes.
Width
13 width = 1920
Width of JPEG.
Height
14 height = 1080
Height of JPEG.
Model Name
18 type = VN-H137
Name of model that created the JPEG.
(reserved) 12 reverse = 0 (reserved)
Time Stamp
70
timestamp =
2012030623341253
8UTC
Indicates the time when the JPEG is created. This is
made up of the year/month/day, hour/minute/second,
millisecond and timezone code.
(reserved) 13 alarm = 00000000
(reserved)
Camera ID
50 camera = input01
Stores camera information set at VN-X35/235.
Motion Detect Setting
11 motion = 1
Specified as 1 when the motion detect is ON.
Motion Detect Result
7 md = 1
Specified as 1 if motion i
s detected at the time when
JPEG is created.
Tampering Detect
Result
14 tampering = 0
Specified as 1 if tampering is detected at the time when
JPEG is created.
Pan position 16 digipan = 123 Indicates pan position in pixels from 0 to 1278.
Tilt position 17 digitilt = 123 Indicates tilt position in pixels from 0 to 958.
Zoom position 17 digizoom = 1.23 Indicates zoom value from 0.25 to 8.00.
Preset Posision
Number
15 position = 19 Indicates preset position number after movin
g to
preset position
. In other cases, position = NA.
Item names and values, excluding the version information that does not include =, are stored in the following
format.
name
=
space
space
value
(stuffed wi
th 0x00)
fixed length for each item