DSP Selection Guide

Software and Development Tools
TMS320 DSP Algorithm Standard for eXpressDSP Software
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eXpressDSP Algorithm Interoperability Standard (xDAIS) – Digital Media (xDM)
Standards for Application Interoperability
Get more information on xDAIS-DM at: www.ti.com/ccstudio
Features and Benefits
• Reduces system integration by
enabling multiple algorithms to
interoperate out-of-the-box
• Lowers support and development
costs by eliminating custom coding
• Choose from hundreds of compliant
algorithms available today
• Uniform lightweight APIs across
various classes of multimedia algorithms,
such as audio, video,
speech and image
• Flexibility of extension for various
requirements such as metadata
parsing, file format, custom processing
and so forth
• Enables developer to experiment
between algorithms from different
vendors without modifying
application
Mandatory Rules
• The standard consists of:
– 46 basic “common sense” rules
for all algorithms
– IALG APIs – Abstracts DSP
memory management away from
algorithms
– IDMA2 and IDMA3 APIs –
Abstracts DSPDMA management
away from algorithms
– Instruction Set Architecture (ISA)
rules for DSPs
– Naming conventions to reduce
name space pollution
Optional Guidelines
• Several guidelines to help system
integrators
• Methods for extending baseline
APIs for added functionality –
allowing for differentiation
eXpressDSP Compliance
• Hundreds of algorithms tested to
comply to the TMS320 DSP
Algorithm Standard
Texas Instruments 1Q 2007
Overview of eXpressDSP Algorithm Interoperability Standard –
Digital Media
The Digital Media extension to the
eXpressDSP Algorithm Interoperability
Standard – (xDAIS-DM or xDM) is a key
ingredient of eXpressDSP Technology.
xDM defines a uniform set of APIs across
various multimedia algorithms to ease
integration and allow developers to
change between algorithms. The standard
is a set of coding conventions for
algorithm writers that ultimately eliminate
much of the time-consuming reengineering
work required to integrate algorithms
into a variety of applications. It achieves
this by defining common programming
rules, guidelines and interfaces.
The xDM enforces known behaviors,
requires documentation of features relevant
to integration and defines interfaces
for algorithms to use to request resources.
As a result, the standard facilitates the
integration and deployment of algorithms
in a variety of systems.
The xDM documentation, header files
and examples are included in Code
Composer Studio Integrated
Development Environment (IDE).
Using eXpressDSP-Compliant
Algorithms
To browse and purchase off-the-shelf
production-ready algorithms, visit TI’s
website to view a list of companies that
have produced
eXpressDSP-compliant
algorithms. Go to the DSP
Developer’s Village and follow
the links in the
eXpressDSP compliance program box and
look for the compliance logo.
For more information about the TMDS320
DSP Algorithm Standard Developer's Kit
visit www.ti.com/ccstudio
The TMS320 DSP Algorithm Standard Developer’s Kit demo shows how easily eXpressDSPcompliant
algorithms interoperate.
DSP Selection Guide