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NetLinx Programming
MAX-CSE Only: Streaming Commands (Port 1)
For programming purposes, do not use a hyphen when specifying MPEG
functionality. Use MPEG2 and MPEG4 (no dash), do not use MPEG-2 or MPEG-4.
In order for the SET commands (Set Video, Set URL, etc..) to take effect, any active
stream MUST FIRST BE HALTED using the STOP command. Once these
commands are executed, you can then the PLAY command to restart the stream.
The only exception ot this procedure is the SET AUDIO, which while during a stream
can on the fly be toggled between Microphone and Line.
The streaming system on the MAX-CSE is located at Port 1 in NetLinx D:P:S nomenclature. The
MAX-CSE supports the following streaming commands.
MAX-CSE Streaming Send_Commands
Command
GET ASOURCE
Get a description of the
current incoming audio
source.
GET AUDIO
Get a description of the
current audio system
configuration.
68
Description
Syntax:
SEND_COMMAND <DEV>,"'GET ASOURCE'"
Variable:
format = LINE (from the rear Stereo RCA connectors) or
MIC (from the rear Microphone port).
Example:
SEND_COMMAND ENCODER,"'GET ASOURCE'"
System response:
ASOURCE = LINE
Indicates that the MAX-CSE is using/expecting to encode incoming audio from
the rear Line-In Stereo RCA connectors.
Requests the configuration of the current audio system. The returned
information includes: codec, sampling rate, and bit rate.
Syntax:
SEND_COMMAND <DEV>,"'GET AUDIO'"
Variables:
codec = Off, MP2, or MP3.
sampling rate = 32 KHz, 44.1 KHz, and 48 KHz. Rate given in KHz
(KiloHertz).
bit rate = 96 Kbps and 192 Kbps. Effective bit rate in Kbps (kilobits
per second).
Example:
SEND_COMMAND ENCODER,"'GET AUDIO'"
System response:
AUDIO = MP2 48 10
Indicates that the audio system is configured to use an MP2 audio stream, with
a sampling rate of 48 KHz, and a bit rate of 10 Kbps.
MAX Video Encoder
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