Jvc Protocol: Mpeg-4 Streaming - JVC VN-H37 Manual

Pan position 16
Tilt position 17
Zoom position 17
Preset Posision 15
Number

4. JVC Protocol: MPEG-4 Streaming

4.1. Basic Procedures
1) The client establishes a TCP connection to port number 80.
2) The client sends out API.
Example
GET /api/video?encode=mpeg4 HTTP/1.1<CRLF>
Host: 192.168.0.2<CRLF><CRLF>
Note <CRLF> denotes the line feed code (
3) The camera returns HTTP response and MPEG-4 stream.
HTTP Response and MPEG-4 stream sent out by the camera are as follows.
HTTP Response
VOP of MPEG_4 (First Frame)
VOP of MPEG-4 (Second Frame)
,,,
4) When the client wants to stop current MPEG-4 transmission, the client disconnects TCP80.
The camera does not accept further API via current TCP that is used for H.264 transmission. To change
parameter, disconnect current TCP to stop the MPEG-4 transmission, connect new TCP, and send API with new
parameter.
4.2. API Format
Structure
GET space
Host: space
digipan = 123
digitilt = 123
digizoom = 1.23
position = 19
0x0D, 0x0A
API
IP Address of Camera
Indicates pan position in pixels from 0 to 1278.
Indicates tilt position in pixels from 0 to 958.
Indicates zoom value from 1.00 to 8.00.
Indicates preset position number after moving to
preset position
. In other cases, position = NA.
).
space HTTP/1.1
0x0D 0x0A 0x0D 0x0A
1 4
0x0D 0x0A