...题文档 关键词： 运动图像专家组; 并行解码; 改造分割码表;流水线技术;桶形移位器 [gap=805]Key words: MPEG-4; parallel decode; reconstructing and partitioning code tables; pipelining; barrel shifter..
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According to characters of the H.264 decode algorithms, this pa-per analyses data dependency of macro-blocks, designs parallel decoding flow, and implements the parallel decoding on macro-block group level.
文章根据H.264视频压缩标准的算法特点,分析了宏块间的数据依赖关系,设计并行流程,实现了宏块组级别的并行解码。
参考来源 - H.264并行解码的设计与实现·2,447,543篇论文数据，部分数据来源于NoteExpress
变字长解码模块的核心是基于桶形移位器的并行解码结构，使用该结构的解码速度比一次一位的串行结构更快。
The serial structured decoder can decode one bit per cycle. Because the structure of UVLC(Universal Veriable Length Code) is fixed, "first one detector"is designed to decode UVLC.
在尽量减少时钟消耗的前提下，此解码器可以解码每个变换块中变换系数的熵编码码流，并将结果按照块扫描顺序并行输出。
While minimizing the use of clock cycles, it could decode the coded stream of transform coefficients in each block and output the decoded coefficients in zigzag scanning order.
同时采用并行流水线技术，提高了解码的速度。
The parallel pipeline is also adopted to enhance the decode efficiency.
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