The real-time implementation of H.264 encoding and network transmission on dsp platform

To the high computational complexity problem of H.264 encoder and the specific features of TMS320DM642, several implementation techniques for optimization are presented in this paper from several aspects, including algorithm, data transfer, memory and Cache. Finally, H.264 baseline profile encoder has been implemented on DSP platform. The experimental results show that, for the video sequences with CIF format, the optimized version of H.264 encoder can achieve the encoding rate of more than 24 frames per second, which is able to meet the real time requirements. Then, based on the optimized H.264 encoder, the functionalities of real time capture, encoding and network transmission of video data have been implemented based on real time operation system (RTOS) of DSP platform, which demonstrates that the proposed optimization schemes are practical.