Specification tagged news

The Khronos Group today announced the immediate release of the royalty-free, Adaptive Scalable Texture Compression (ASTC™) LDR extension specification, defining a new, highly flexible texture compression scheme for developers using both the OpenGL® ES and OpenGL® 3D graphics APIs. ASTC is an exceptionally efficient compression technology which allows encoding of for a wide variety of texture formats at bit-rates of 8 bits per pixel to below 1 bit per pixel. ASTC is published as a Khronos extension, KHR_compressed_texture_astc_ldr, which is available from the Khronos website.

The Khronos Group today announced the release of OpenMAX™ IL 1.2 as a provisional specification. OpenMAX IL is a royalty-free, cross-platform C-language API for integration of multimedia components into media frameworks to simplify deployment of audio/video encoders/decoders, camera control, and audio, video and image processing algorithms across diverse platforms. OpenMAX IL 1.2 is a backward compatible upgrade that includes dynamic buffer allocation, improved media graph management, in-band signaling, enhanced audio video synchronization, a wider range of standard components and enhanced camera control capabilities together with many other improvements and clarifications to increase interoperability between media processing components. The specification has been released in provisional form to enable developers and implementers to provide feedback before specification finalization. The OpenMAX IL 1.2 provisional specification is available for immediate download.

The OpenMAX AL working group is pleased to announce that OpenMAX AL version 1.0.1 has been released and is available for download in the Khronos Registry. The update to the specification includes minor bug fixes and clarifications, macros used for platform specific linking information, additional macro definitions for common codecs and multimedia container formats and a detailed description of memory management. An official feedback thread is located in the Khronos forums. The OpenMAX AL version 1.0.1 specification can be downloaded in PDF. Two recommendations have been made to implementors of OpenMAX AL and OpenSL ES.

The OpenSL ES workgroup is pleased to announce that OpenSL ES version 1.0.1 has been released and is available for download. The update to the specification includes clarifications and minor bug fixes. Among the bug fixes are adjustments to make sure that OpenSL ES is aligned with OpenMAX AL 1.0. The OpenSL ES 1.0.1 specification is available in the Khronos public registry here (pdf), and the header files are available here.

With the launch of Snow Leopard this Friday, now is the time to start getting revved up for some of the new technologies coming with this release. One of them, OpenCL. MacResearch.org has done a great overview of what OpenCL is and a beginners tutorial on how it works and how to use it.