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Issues in the performace improvement of MPEG-4 Encoding

yipan
Beginner
‎05-09-2007 07:43 PM
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Dear experts,

Currently I amworkingupon Intel PXA27X platform providing MPEG-4 encoding feature, but unfortunately, the performance is far from my expectation. On average, encoding an 176x144 P-VOP video frame costs me about 60 ms, definitly unacceptable. By carefully analyzing the codec, the following primitives may be the bottleneck in my project, as follows:

  1. ippiSumNorm_VOP_MPEG4_8u16u(6.3 ms)
  2. ippiMotionEstimation_16x16_SEA(420 us)

I am curious about the performance of these primitives in Intel, could any experts provide me such kind of information with which I can target the actual problem at my concern.

By the way, my IPP version is 5.0 for Linux.

Regards,

Yipan

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