Amx MAX-CSE Manuel d'utilisateur télécharger pdf (Page 92)

NetLinx Programming

MAX-CSE/MAX-CSD10 Operation/Reference Guide

MAX-CSD 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'

Example:

SEND_COMMAND DECODER,'GET URL'

System response:

URL = UDP 224.0.0.1 5000

URL = RTP 224.0.0.1 5000 5002

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 DECODER,"'GET VIDEO'"

System response:

VIDEO = MPEG-2 D1 4000

VIDEO = NONE

Indicates that the video codec is configured to use an MPEG-2 stream, with a

D1 resolution at 4000 Kbps.

PLAY

Starts reception of audio and/

or video.

Starts receiving of audio and/or video based on current configuration.

If system is in manual mode then this command will use parameters that are

set manually.

If system is in SAP mode or RTSP mode then this command will use parame-

ters referenced by the session cursor.

Syntax:

SEND_COMMAND <DEV>,'PLAY'

Example:

SEND_COMMAND DECODER, 'PLAY'

SET AUDIO

Set the configuration

parameters for the audio

system.

The configuration parameters include: codec, sampling rate, and bit rate.

Note: Setting the audio configuration during the 'play' state has undefined

results.

Syntax:

SEND_COMMAND <DEV>,'SET AUDIO <Codec>'

Variable:

Codec =MP3 or AAC

Example:

SEND_COMMAND DECODER,'SET AUDIO MP3'

Sets the audio configuration to MP3. The MP3 decoder also will decode MP2.

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Amx MAX-CSE Manuel d'utilisateur Page 92

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