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NetLinx Programming
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MAX-CSE/MAX-CSD10 Operation/Reference Guide
MAX-CSE Streaming Send_Commands (Cont.)
Command Description
GET URL
Get a description of the
URL parameters being used
by the current audio/video
stream.
Requests the current configuration of the URL communication parameters. The
returned information includes: communication protocol, IP Address, and port
used.
Syntax:
SEND_COMMAND <DEV>,"'GET URL'"
Variables:
protocol = RTP or UDP.
address = Address of stream in IPv4 dot notation (ex: X.X.X.X).
port = Primary port for audio/video transport.
audio port = Port for audio stream (RTP only).
Example:
SEND_COMMAND ENCODER,"'GET URL'"
System response for UDP:
URL = UDP 239.168.42.10 5000
Indicates that the UDP audio/video stream has previously been configured to
use a multicast session (UDP) at an IP Address of 239.168.42.10 where it uses
port 5000.
System response for RTP:
URL = RTP 239.168.42.10 5000 5002
Indicates that the individual RTP audio/video streams has previously been
configured to use an IP Address of 224.168.42.10 where it uses port 5000 for
the video stream and port 5002 for the audio stream.
GET VIDEO
Get a description of the
current video codec
configuration.
Requests the current configuration of the video system. The returned
information includes: codec, resolution, bit rate, and mode.
Syntax:
SEND_COMMAND <DEV>,"'GET VIDEO'"
Variables:
codec = Off, MPEG2, or MPEG4.
resolution = D1, or SIF, or <width>X<height> (up to a D1 resolution).
bit rate = Returned in Kbps (kilobits per second).
mode = CBR (constant Bit rate) or VBR (variable Bit rate).
Example:
SEND_COMMAND ENCODER,"'GET VIDEO'"
System response:
VIDEO = MPEG2 D1 4000 CBR
Indicates that the video codec is configured to use an MPEG-2 stream, with a
D1 resolution at 4000 Kbps using a constant bit rate (CBR).
GET VIDEO PORT STATUS
Returns the Video In Port Sta-
tus.
The system will either return 'SYNC' or 'LOS'.
Syntax:
SEND_COMMAND <DEV>, 'GET VIDEO PORT STATUS'
Example:
SEND_COMMAND ENCODER, 'GET VIDEO PORT STATUS'
System response:
VIDEO PORT STATUS=SYNC