Cisco Systems OL-13985-01 Limited Support for MPEG-4, Supported Attributes for Digital Audio

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Chapter 1

Introduction

Limited Support for MPEG-4

Limited Support for MPEG-4

DMP support for the MPEG-4 suite of standards does not extend to every possible aspect, entity, or variant of MPEG-4. We require explicitly that:

You use the MPEG-4 Part 2 codec.

Audio and video in your MPEG-4 files are multiplexed in an MPEG-2 transport stream.

Supported Attributes for Digital Audio

We support the following attributes for digital audio in this release.

Audio MPEG-1 Layers 1 and 2

AAC (MPEG-4) Low Complexity

AC-3 Compressed Audio

Audio data rate: 64-320 kbps

Supported Filetypes in the Embedded Browser

A version of the Mozilla browser is preinstalled on each DMP 4305G device. The DMP browser is based on Mozilla version 1.7.13 and supports JavaScript version 1.5.

The DMP browser can work with files of these types, but not with files of any other type:

HTML

TXT

GIF

JPEG

PNG

SWF (Flash 6 or Flash 7)

You cannot install browser plug-ins or any other software on your DMP, whether to support additional filetypes or for any other purpose. No Java Runtime Environment (JRE) is installed.

Understanding the Difference Between ‘Apply’ and ‘Save’

The graphical user interface for DMPDM contains elements that help you to activate any change that you make, and it is important that you understand the difference between activating a change temporarily or doing so permanently.

To confirm that you are satisfied with changes that you made to the values for a condition or setting, click Apply. After you click Apply, the changes take effect. However, the changes are temporary and the previously defined values for the pertinent condition or setting will return as soon as the next time that your DMP restarts.

To put all changed values into effect permanently, so that they persist even after your DMP restarts, select Administration > Save Configuration. When the Save Configuration page appears, you must click Save.

User Guide for Cisco Digital Media Player Device Manager 1.1

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OL-13985-01

 

 

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Contents Introduction Environmental Tolerances and Safety Guidelines Environmental Characteristics Tolerance Ranges and LevelsGeneral Precautions Protecting Against Electrostatic Discharge Understanding DMP Modes of Operation Supported Attributes for Digital VideoSupported Filetypes in the Embedded Browser Limited Support for MPEG-4Supported Attributes for Digital Audio Understanding the Difference Between ‘Apply’ and ‘Save’Understanding Content Substitution Failover Stage-One FailoverClick Apply Basic DMS Concepts and Vocabulary OL-13985-01