Real time H264 HD intra coding process implementation on TMS320DM642 DSP

Abstract

The H.264 standard was previously designed to allow the development of an encoder that significantly improves compression rates compared to previous standards while ensuring similar visual quality. The H.264 standard has incorporated advanced techniques which fully exploit the redundancies present in video sequences to the great benefit of compression. Intra 4× 4 prediction is one of the most powerful innovations brought by the H.264 standard. This technique exploits the spatial redundancies present at the level of the sequences, thus contributing to better compression. However, the effectiveness of this technique comes at the expense of additional complexity justifying the delicacy of the optimization task. In this paper we propose to study and optimize the intra coding process implementation TMS320DM642 digital signal processor. As a result of this work the encoder complexity was reduced up to 82% without any objective video quality degradation.