| 基于可伸缩编码的高清IPTV系统 |
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| 引用本文： | 刘小龙,王雷,况亚萍,黄承真. 基于可伸缩编码的高清IPTV系统[J]. 计算机系统应用, 2013, 22(10): 45-50 |
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| 作者姓名： | 刘小龙 王雷 况亚萍 黄承真 |
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| 作者单位： | 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 |
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| 基金项目： | 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) |
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| 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．
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| 关 键 词： | 多屏融合 可伸缩编码 TS AVC 实时编码 |
| 收稿时间： | 2013-03-21 |
| 修稿时间： | 2013-04-28 |
HD IPTV System Based on Scalable Coding |
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| LIU Xiao-Long,WANG Lei,KUANG Ya-Ping and HUANG Cheng-Zhen. HD IPTV System Based on Scalable Coding[J]. Computer Systems& Applications, 2013, 22(10): 45-50 |
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| Authors: | LIU Xiao-Long WANG Lei KUANG Ya-Ping HUANG Cheng-Zhen |
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| Affiliation: | Department of Automation, USTC Key laboratory of network communication system and control, Hefei 230027, China;Department of Automation, USTC Key laboratory of network communication system and control, Hefei 230027, China;Department of Automation, USTC Key laboratory of network communication system and control, Hefei 230027, China;Department of Automation, USTC Key laboratory of network communication system and control, Hefei 230027, China |
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| Abstract: | 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. |
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| Keywords: | multi-screen integration scalable video coding TS AVC real-time encoding |
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