AMX MAX-CSD 10, Operation And Reference Manual

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NetLinx Programming
82 MAX-CSE/MAX-CSD10 Operation/Reference Guide
MAX-CSE Streaming Send_Commands (Cont.)
Command Description
SET URL
Set the URL parameters for
the current audio/video
stream.
The communication parameters must include: communication protocol,
IP Address, and port used.
Syntax:
SEND_COMMAND <DEV>,"'SET URL <protocol> <addr> <port>
[<audio port>]'"
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,"'SET URL UDP 239.168.42.10 5000'"
Sets the URL to a multicast session (UDP) where it will use port 5000 at an
IP Address of 239.168.42.10. Since the protocol is UDP, a second audio port is
not needed.
Example 2:
SEND_COMMAND ENCODER,"'SET URL RTP 239.168.42.10 5000
5002'"
Sets the URL to an IP Address of 239.168.42.10. Since the protocol is RTP,
two ports are needed; port 5000 is used for the video stream and port 5002 is
used for the audio stream.
SET VIDEO
Set the configuration
parameters for the video
codec.
The configuration parameters include: codec, resolution, and bit rate.
Note : Setting the video configuration during 'play' state has undefined results.
Syntax:
SEND_COMMAND <DEV>,"'SET VIDEO <codec> <res> <rate>
<mode>'"
Variables:
codec = Off, MPEG2, or MPEG4.
res = D1, or SIF, or <width>X<height> (up to a D1 resolution).
rate = Bit rate specified in Kbps (kilobits per second).
- range of 2000 - 6000 used for an MPEG2 stream
- range of 500 - 3000 used for an MPEG4 stream
mode = CBR (constant Bit rate) or VBR (variable Bit rate).
Example:
SEND_COMMAND ENCODER,"'SET VIDEO MPEG2 D1 6000 CBR'"
Sets the video configuration to use a very high quality video stream set at
MPEG2, with a D1 resolution at constant bit rate of 6000 Kbps.