MPGE4视频解码过程中图形处理的实现和优化

Design and Optimization of Image Processing in MPGE4 Video Decoding

介绍了MPEG4编解码标准、MPEG4视频解码流程、播放器的架构以及播放数据的流程。重点介绍了在视频解码的过程中图形处理部分的实现以及优化方案。数组存储的方式和部分IPP函数的移植是有效的优化方式。通过图形处理部分测试数据可以整体评测:优化后的视频已经达到了流畅播放的产品级要求。

Encoding and decoding standard of MPEG4, video decoding flow of MPEG4, architecture of the player and the flow of playing data are introduced. The realization of image processing portion during video decoding and its optimized scheme are emphasized. The way of array storing and the transplantation of part of IPP function are effective optimizing ways. Part of the testing data may be integrally evaluated through image processing： optimized video has achieved the production level requirement of smooth playing.