ISO/IEC TR 14496-9:2008 信息技术 音频-可视对象的编码 第9部分：参考硬件描述

标准编号：ISO/IEC TR 14496-9:2008

中文名称：信息技术 音频-可视对象的编码 第9部分：参考硬件描述

英文名称：Information technology — Coding of audio-visual objects — Part 9: Reference hardware description

发布日期：2008-08

标准范围

ISO/IEC TR 14496-9:2008的主要目标是促进MPEG-4标准的更广泛使用。EDA行业的设计方法已经从原理图发展到硬件描述语言（HDL），以满足单个设备上大量可用门的需求。门的数量增加允许部署更复杂的算法，但也需要改变设计范式来处理由此产生的复杂性。通过HDL，可以更快地设计更复杂的系统，方法是将HDL代码合成到不同的硅技术中，在硅技术中进行权衡。现在EDA行业再次面临挑战，HDL可能无法提供系统设计师评估系统级参数和复杂性问题所需的抽象级别。为了解决这个问题，已经进行了一些工具调查。分析工具有助于以抽象的方式暴露瓶颈，以便做出早期设计决策。C-to-gates工具允许基于C的模拟环境，同时也支持直接合成到gates以实现硬件加速。总之，这是ISO/IEC TR 14496的目标-9:2008，通过参考硬件描述和与ISO/IEC TR 14496-7（MPEG-4第7部分优化参考软件）的紧密集成，使MPEG-4标准得到更广泛的使用。此外，它的目的是，接触这样一个平台将使我们能够以更系统的方式研究新编解码器的复杂性，并以一个数量级的计算周期打开算法搜索空间。

The main goal of ISO/IEC TR 14496-9:2008 is to facilitate a more widespread use of the MPEG-4 standard.Design methodologies of the EDA industry have evolved from schematics to Hardware Description Languages (HDLs) to address the needs of the vast number of gates available on a single device. The increased number of gates allowed more elaborate algorithms to be deployed but also required a shift in design paradigm to handle the complexity created. Through HDLs, more complicated systems could be designed faster through the enabling technology of synthesis of the HDL code towards different silicon technologies where trade offs could be explored. Now the EDA industry again faces challenges where HDLs may not provide the level of abstraction needed for system designers to evaluate system level parameters and complexity issues. There have been a number of tool investigations under way to address this problem. Profiling tools aid in exposing bottlenecks in an abstract way so that early design decisions can be made. C to gates tools allow a C based simulation environment while also enabling direct synthesis to gates for hardware acceleration.In conclusion, it is the aim of this ISO/IEC TR 14496-9:2008 to enable more widespread use of the MPEG-4 standard through reference hardware descriptions and close integration with ISO/IEC TR 14496-7 (MPEG-4 Part 7 Optimized Reference Software). Additionally, it is aimed that exposure to such a platform will enable a more systematic way to investigate the complexity of new codecs and open up the algorithm search space with an order of magnitude more compute cycles.

标准预览图