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XDAIS algorithms
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<p>XDAIS or eXpressDsp Algorithm Interoperability Standard is a standard for algorithm development by <a href="/facts/Texas_Instruments/88NUhuHF">Texas Instruments</a> for the <a href="/facts/TMS320/ILsPTHCJ">TMS320</a> DSP family. The standard was first introduced in 1999 and was created to facilitate integration of DSP algorithms into systems without re-engineering cost. The XDAIS standard address the issues of algorithm resource allocation and consumption on a DSP. Algorithms that comply with the standard are tested and awarded an "eXpressDSP-compliant" mark upon successful completion of the test. </p><p>The standard consists of a set of general rules and guidelines that should be applied to all algorithms. For instance, all XDAIS compliant algorithms must implement an Algorithm Interface, called IALG. For those algorithms utilizing <a href="/facts/Direct_Memory_Access/DWuVgclV">DMA</a>, the IDMA interface must be implemented. Further, specific rules are provided for each family of TI DSP. </p><p>Problems are often caused in algorithm by hard-coding access to system resources that are used by other algorithms. XDAIS prohibits the use of this type of hard-coding. Instead, XDAIS requires a standard API for the application to call a particular algorithm class. This API is defined in the xDM standard, also referred to as the VISA APIs (video, imaging, speech and audio). </p><p>A XDAIS developer's kit provides the standard itself, example code, and a demonstration. </p><p>Benefits of XDAIS over non-standardised approaches include: </p> <ul><li>Significant reduction in integration time as algorithms do not trash each other's resources</li> <li>Easy comparison of algorithms from multiple different sources in the same application</li> <li>Access to broad range of compliant algorithms available from multiple TI DSP Third Parties eliminates need to custom develop complex algorithms</li> <li>Algorithms work out-of-the-box with eXpressDSP Multimedia Framework Products, such as Codec Engine (TI)</li></ul>