JVC VN-H37 Manual page 10

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

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