基于达芬奇技术的H.264视频编码器的研究与实现

A Study and Implementation of H.264 Video Encoder Based on DaVinci Technology

随着多媒体技术的发展,数字图像处理技术被广泛应用于电视会议、可视电话、家庭娱乐、远程监控、公共安全、机器人导航等多种领域,但图像数据的大容量与传输带宽有限性之间的矛盾愈来愈突出.H.264/AVC是ITU-T和ISO/IEC联合推出的视频压缩编码标准,具有优异的压缩性能、高效的编码效率和良好的网络友好性,在数字媒体领域有着非常广阔的应用前景.介绍了新一代视频编码标准H.264的关键技术和达芬奇技术中的视频编解码引擎(Co-dec Engine),讨论了H.264编码算法,利用VC6.0进行了H.264算法的验证,并且在TMS320DM6446平台上进行了算法的移植和优化,完成了一个多媒体通信终端平台.

With the development of multimedia technology,digital image processing techniques are widely used in the fields of video conference,the videophone,family amusement,supervisory control system,public security and robot navigation,etc.But the contradiction is more and more conspicuous between the large number of image data and the limited capacity of band width.H.264/AVC has become a new generation of international video compression standard for its high coding efficiency and good network compatibility,which is enacted by ITU-T and ISO/IEC Joint Working Group.It has very extensive application prospects in the area of digital media.The feature of new generation video coding standard H.264 and the Codec Engine of TI DaVinci technology are introduced,H.264 encoding algorithm is discussed,its algorithm was validated using VC6.0,and the implementation and optimization of H.264 was realized on TMS320DM6446 platform.The code can be used as a multimedia communication terminal platform.