摘要
针对H.264标准的高清视频编码在实现时对硬件有较高要求,提出了一种使用双DSP处理的方案。针对双DSP执行时的并行性、协调性及通信的问题进行了详细讨论,提出了相应的解决方法。DSP芯片选用TI的TMS320C6455,双DSP间的数据通信采用串行RapidIO(SRIO)接口。实验结果表明,该方案对高清720p的处理时间在40ms以内,满足了对高清视频的实时处理要求。
The hardware. In commumcatlon TMS320C6455 between DSPs processing for realization of high definition （HD） video based on H.264 compression standard requires high performance of this paper, a dual-DSP processing scheme is proposed. The problem of parallel, coordination and between two DSPs are discussed in detail, and the corresponding solutions are put forward. TI DSP which supports C64x＋ core is utilized. Serial RapidIO （SRIO） interface is adopted to transfer data Experimental results show that the processing time of HD 720p is in 40 ms which meets the real-time HD video requirements
出处
《电视技术》
北大核心
2010年第5期33-35,53,共4页
Video Engineering
基金
国家"863"计划项目(2007AA802401)
