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This document describes APIs of VN-V685/686/686B. Differences of VN-V685, VN-V686 and
VN-V686B are as below.
Function VN-V685 VN-V686 VN-V686B
Maximum Optical
Zoom x27 x36 x36
White Balance Mode
All white balance mode
s are available
"autoFull" and "sodium" are
not available All white balanc
e modes are
available
3D Noise Reduction
available(from v3.00)
available(from v3.00) none
Click on Center available available (from v1.04) available
Intelligent Tracking
available available (from v1.03) available
IPv6 available n one available
AMX Device
Discovery Protocol available none available
VSIP available none available
1. Getting JPEG from VN-V685/686/686B via HTTP

1.1. Basic Procedures

1) The client establishes a TCP connection to port number 80.
2) The client sends out API.
Example
GET /api/video?encode=jpeg&framerate=30&boundary=on&ptz_info=off HTTP/1.1<CRLF>
Host: 192.168.0.2<CRLF><CRLF>
Note <CRLF> denotes the line feed code (0x0D, 0x0A).
3) VN-V685/686/686B returns HTTP response.
Example of VN-V685
HTTP/1.1 200 OK<CRLF>
Connection: close<CRLF>
Content-type: multipart/x-mixed-replace;boundary=-foo<CRLF>
Date: Tue, 02 Oct 2008 07:33:12 GMT<CRLF>
Server: JVC VN-V685 Network Camera<CRLF>
x-vnv685_response:
encode=jpeg&framerate=30&framesize=vga&boundary=on&ptz_info=off<CRLF><CRLF>
4) VN-V685/686/686B sends out JPEG data after returning HTTP response.
JPEG files with boundary structure will be sent out continuously after HTTP Response as follows. Content-Length in