OPTIMIZING INTEL® ARCHITECTURE MULTIMEDIA APPLICATIONS BY SOFTWARE TUNING AND HARDWARE ACCELERATION.

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Bibliographic Details
Title:	OPTIMIZING INTEL® ARCHITECTURE MULTIMEDIA APPLICATIONS BY SOFTWARE TUNING AND HARDWARE ACCELERATION.
Authors:	Yuming Li¹ Yuming.li@intel.com
Source:	Intel Technology Journal. 2014, Vol. 18 Issue 2, p148-170. 23p.
Subjects:	SIMD (Computer architecture), Intel computers, Computer architecture, Android (Operating system), Mathematical optimization
Abstract:	Multimedia applications are becoming increasingly common in personal computers. For the reason of data level parallelism for multimedia data, SIMD (Single Instruction, Multiple Data) has commonly been adapted for multimedia optimization in general-purpose processors. Because SIMD (MMX and SSE) is supported by all of the Intel CPUs for mobile and desktop devices, many past PC code optimizations and technology can be used for Intel architecture-based Android applications. On the other hand, hardware acceleration is used to improve performance too. Offloading the compute-intensive multimedia work from software running on the CPU to dedicated video acceleration hardware will save a large amount of CPU resources and power. In this article, an open-source full format player is given as an example to explain the software and hardware optimization technology. The author gives a general introduction of SIMD and Intel® Threaded Building Blocks (Intel® TBB) for Intel architecture. For the hardware acceleration, an unofficial hardware encoder solution that directly calls Openmax-IL and two official solutions, Openmax-Al and MediaCodec, which Google provides, are discussed. MediaCodec should be a very important API after Jelly Bean. In this article, improvements for MediaCodec are given. With the freeing up of additional CPU power, some amazing ideas can be realized by using software optimization and hardware acceleration. [ABSTRACT FROM AUTHOR]
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Database:	Engineering Source

Description
Abstract:	Multimedia applications are becoming increasingly common in personal computers. For the reason of data level parallelism for multimedia data, SIMD (Single Instruction, Multiple Data) has commonly been adapted for multimedia optimization in general-purpose processors. Because SIMD (MMX and SSE) is supported by all of the Intel CPUs for mobile and desktop devices, many past PC code optimizations and technology can be used for Intel architecture-based Android applications. On the other hand, hardware acceleration is used to improve performance too. Offloading the compute-intensive multimedia work from software running on the CPU to dedicated video acceleration hardware will save a large amount of CPU resources and power. In this article, an open-source full format player is given as an example to explain the software and hardware optimization technology. The author gives a general introduction of SIMD and Intel® Threaded Building Blocks (Intel® TBB) for Intel architecture. For the hardware acceleration, an unofficial hardware encoder solution that directly calls Openmax-IL and two official solutions, Openmax-Al and MediaCodec, which Google provides, are discussed. MediaCodec should be a very important API after Jelly Bean. In this article, improvements for MediaCodec are given. With the freeing up of additional CPU power, some amazing ideas can be realized by using software optimization and hardware acceleration. [ABSTRACT FROM AUTHOR]
ISSN:	1535864X