基于可伸缩编码的高清IPTV系统  

HD IPTV System Based on Scalable Coding

作　　者：刘小龙[1] 王雷[1] 况亚萍[1] 黄承真[1] 

机构地区：[1]中国科学技术大学 自动化系网络传播系统与控制安徽省重点实验室,合肥230027

出　　处：《计算机系统应用》2013年第10期45-50,共6页Computer Systems & Applications

基　　金：国家高技术研究发展计划(2011AA01A107);中央高校基本科研业务费专项基金(WK2100100012)

摘　　要：随着移动互联网技术与智能手持设备的发展,IPTV面临多屏融合的需求,可伸缩编码技术可以很好地解决网速和设备分辨率的差异问题.本文设计和实现了一套基于H264/SVC标准的高清实时IPTV系统,通过对视频在时间、空间、质量上进行可伸缩编码,以及TS解封装、AVC解码和TS流传输H264/SVC等模块的实现,通过实时编码,使拥有不同带宽和设备分辨率的用户能并发实时地观看节目.实验证明了系统的有效性和稳定性.With the rapid development of mobile Internet technology and smart handheld devices in recent years, IPTV facing the demand of multi-screen integration. Scalable video coding technology can be a good solution to the differences in network speed and resolution of device. In this paper, we design and implement an HD real-time system of IPTV based on H264/SVC standard. The finalized H264/SVC standards are able to achieve scalable coding in the temporal, spatial, or fidelity domain. This paper presents a detailed introduction of TS encapsulation, AVC decoding and the encapsulation of SVC. By encoding the video in real-time, users with different bandwidth and device resolution concurrent viewing program in real-time. In the end of the paper, the experiments proved the effectiveness and stability of the system.

关 键 词：多屏融合 可伸缩编码 TS AVC 实时编码 

分 类 号：TN919.81[电子电信—通信与信息系统]