Analysis: BDTI Certifies ARC's H.264 Performance

This month BDTI and silicon intellectual property licensor ARC International announced completion of BDTI Solution Certification™ of the H.264 decode performance of the ARC Video Subsystem. The ARC Video Subsystem, the first product to be certified under BDTI's Solution Certification Service, is a programmable subsystem capable of supporting multiple video standards. In certifying the solution, BDTI has independently verified its performance using proprietary BDTI bitstreams and metrics.

H.264 decoder solution performance is reported as the minimum clock rate required to decode BDTI's Primary Operating Point bitstream in real-time. The Primary Operating Point uses the following basic parameter settings: "D1" resolution (720 x 480 pixels), 30 frames per second, Baseline Profile, and a maximum bit rate of 1.5 Mbps.

Two important factors that affect the minimum clock rate required for real-time operation are the number of output "delay buffers" used and the performance of external (main) memory. In recognition of these factors, BDTI has chosen to present the minimum clock rate required by the ARC Video Subsystem for real-time operation for a number of output delay buffer sizes and a range of external memory access times (see Figure 1).

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