LevelOne FCS-5011 User Manual download pdf (Page 82)

Appendix

URL Commands of the Network Camera

Overview

For some customers who already have their own web site or web control application, Network

Camera/Video server can be easily integrated through convenient URLs. This section specifies the

external HTTP based application programming interface. The HTTP based camera interface provides

the functionality to request a single image, to control camera functions (PTZ, output relay etc.) and to

get and set internal parameter values. The image and CGI-requests are handled by the built in Web

server.

Style convention

In URL syntax and in descriptions of CGI parameters, a text within angle brackets denotes a content

that is to be replaced with either a value or a string. When replacing the text string also the angle

brackets shall be replaced. An example of this is the description of the name for the server, denoted

with <servername> in the URL syntax description below, that is replaced with the string myserver in the

URL syntax example, also below.

URL syntax' are written with the “Syntax:" word written in bold face followed by a box with the referred

syntax as seen below. The name of the server is written as <servername>. This is intended to be

replaced with the name of the actual server. This can either be a name, e.g., "mywebcam" or

"thecam.adomain.net" or the associated IP number for the server, e.g., 192.168.0.220.

Syntax:

http://<servername>/cgi-bin/viewer/video.jpg

Description of returned data is written with "Return:" in bold face followed by the returned data in a box. All data

returned as HTTP formatted, i.e., starting with the string HTTP is line separated with a Carriage Return and Line

Feed (CRLF) printed as \r\n.

Return:

HTTP/1.0 <HTTP code> <HTTP text>\r\n

URL syntax examples are written with "Example:" in bold face followed by a short description and a light grey box

with the example.

Example: request a single snapshot image

http://mywebserver/cgi-bin/viewer/video.jpg

General CGI URL syntax and parameters

CGI parameters are written in lower-case and as one word without any underscores or other separators. When

the CGI request includes internal camera parameters, the internal parameters must be written exactly as they are

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LevelOne FCS-5011 User Manual Page 82