Texas Instruments Codec Engine Server manual What is the Codec Engine?

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What is the Codec Engine?

1.1What is the Codec Engine?

 

 

 

 

 

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From the application developer’s perspective, the Codec Engine is a set of APIs that you use to instantiate and run xDAIS algorithms. A VISA interface is provided as well for interacting with xDM-compliant xDAIS algorithms.

The API is the same for all of the following situations:

❏The algorithm may run locally (on the GPP) or remotely (on the DSP).

❏The system may be a GPP+DSP, DSP only, or GPP only system.

❏All supported GPPs and DSPs have the same API.

❏All supported operating systems have the same API. For example, Linux, PrOS, VxWorks, DSP/BIOS, and WinCE.

This manual uses an icon like the one to the left to identify information that is specific to a particular type of system. For example, this icon identifies information that applies if you are using Codec Engine on a dual-processor GPP+DSP system.

xDM is the eXpressDSP Algorithm Interface Standard for Digital Media. It is sometimes referred to as xDAIS-DM.

Any xDM algorithm is compliant with the eXpressDSP Algorithm Interface Standard (xDAIS). Additionally, it implements the xDAIS-DM (xDM) interface, an extension to the xDAIS standard that provides support for digital media encoders, decoders, and codecs. The xDM specification defines APIs for digital media codecs by class, with extensions defined for video, imaging, speech, and audio codec classes.

The xDM interfaces divide codec algorithms into four classes: Video, Image, Speech, and Audio (VISA). VISA reflects this xDM interface. One set of APIs is provided per codec class. Thus, MP3 can be replaced with WMA without changing the application source code. Only the configuration needs to be changed.

The Codec Engine also supports real-time, non-intrusive visibility into codec execution. It provides APIs for accessing memory and overall CPU usage statistics and execution trace information.

The Codec Engine runtime is supplied in binary form. Thus, application libraries built with same Codec Engine release are always compatible.

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Contents Codec Engine Server Integrator Users Guide Important Notice Preface Notational Conventions Contents Page Codec Engine Overview This chapter introduces the Codec Engine TopicWhat is the Codec Engine? Why Should I Use It? Visa APIs Where Does the Codec Engine Fit into My Architecture?Role 3 Core Engine APIs Core Engine APIs Visa APIs Runtime Video EncodeWhat Are the User Roles? Algorithm CreatorServer Integrator Engine Integrator Application AuthorWhere Can I Get More Information? Configuration ReferenceCodec Engine API Reference Example Build and Run InstructionsPage Configuring a Codec Server Overview What is a Codec Server? What is the Execution Flow?Overview What About Single-Processor Systems? What Examples Exist? What is the Config Kit?What Algorithms Can a Codec Server Integrate? Creating a Codec Server Creating a PackageEditing the Codec Server Configuration Script Editing the Package DefinitionVar LogServer = xdc.useModuleti.sdo.ce.bioslog.LogServer Creating a Codec Server Controlling I/O Buffer Caching for xDM 0.9 Codecs Specifying Scratch Group and DMA Resources for a Codec More About the groupId Field Server.algs.groupIdEditing the DSP/BIOS Configuration Script Engine.algs.groupId4.1 DSP/BIOS Threads and Module Use Editing the Build ScriptEditing the Linker Command File Delivering a Codec ServerEditing the main.c File Editing the makefileDelivering Server Packages for Servers Built with XDC Delivering a Codec Server Index Index

Codec Engine Server specifications

Texas Instruments Codec Engine Server (CES) is a powerful software framework designed to handle audio and video processing on embedded systems. It serves as a bridge between high-level application programming and low-level codec implementations, simplifying the development of multimedia applications. The Codec Engine's primary focus is on optimizing media codecs for applications such as telecommunications, video conferencing, multimedia playback, and streaming services.

One of the standout features of the CES is its ability to support multiple codecs simultaneously, allowing developers to efficiently decode and encode various media formats in real time. This flexibility is crucial for applications that demand high-quality audio and video processing without compromising performance. Furthermore, the CES architecture promotes modular design, enabling developers to swap in and out different codec implementations based on specific project requirements.

The CES leverages advanced technologies including simultaneous multithreading, which maximizes the processing power of multi-core processors. With this capability, developers can allocate threads efficiently across multiple cores, tackling demanding tasks without latency. Additionally, the framework supports dynamic codec allocation, meaning that resources can be managed and adjusted on-the-fly as needed, ensuring optimal performance in varying conditions.

Another significant characteristic of the CES is its compatibility with various Texas Instruments DSP (Digital Signal Processor) platforms. This ensures that developers can take advantage of the specialized capabilities of TI's hardware, including their power management features and high-performance processing capabilities. The integration of hardware and software within the CES architecture allows for optimized resource utilization, leading to energy-efficient applications.

The development process is further streamlined through the use of a comprehensive API (Application Programming Interface) that provides access to codec functionalities while abstracting the complexities of underlying hardware. This allows developers to focus on building high-level features without getting bogged down in low-level programming details.

In conclusion, Texas Instruments Codec Engine Server stands out as a robust solution for developers aiming to create high-performance media applications. Its support for multiple codecs, efficient resource management, and compatibility with TI DSP platforms make it an indispensable tool in the multimedia processing space. By facilitating seamless interaction between hardware and software, CES empowers developers to deliver richer multimedia experiences in their applications.
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