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针对H.264视频编码标准中的去块滤波部分提出了一种基于时间的高效并行处理方法。为了降低对存储器的要求,同时提高中间数据的复用效率,采用了一种改进的滤波顺序,使得对外部存储器的读/写操作可以与滤波操作并行执行。另外,由于外部数据的预先载入技术,有效地降低了外部存储器的结构复杂度。与过往技术相比,这种单数据口外部存储结构的去块滤波器单宏块滤波处理周期总数减少了9.6%～74.4%,有效地提高了处理能力。
Aiming at the deblocking filtering part of H.264 video coding standard, an efficient time-based parallel processing method is proposed. In order to reduce the memory requirements and improve the efficiency of the intermediate data multiplexing, an improved filtering order is adopted so that the read / write operations to the external memory can be performed in parallel with the filtering operations. In addition, due to the external data pre-loading technology, effectively reducing the structural complexity of external memory. Compared with the prior art, the total number of deblocking filter single-macroblock filtering cycles of the single data port external memory structure is reduced by 9.6% -74.4%, effectively improving the processing capability.