| 支持IPTV高清码流连续平滑播放的多级缓冲区设计与实现 |
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| 引用本文： | 林镜华,雷为民,白松,李凌南.支持IPTV高清码流连续平滑播放的多级缓冲区设计与实现[J].小型微型计算机系统,2010,31(5). |
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| 作者姓名： | 林镜华 雷为民 白松 李凌南 |
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| 作者单位： | 1. 中国科学院,研究生院,北京,100039;中国科学院,沈阳计算技术研究所,网络与通信实验室,辽宁,沈阳,110171
2. 中国科学院,沈阳计算技术研究所,网络与通信实验室,辽宁,沈阳,110171 |
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| 摘 要： | 把流媒体系统作为一个复杂的控制系统进行研究,给出支持多级反馈控制机制的系统框图,重点分析媒体播放器从流接收到播放的全过程.同时,为了提高用户体验质量,实现音视频流在接收端的连续平滑播放,设计了多级缓冲机制以减少IP网络抖动和丢包产生的影响,实现了根据接收端的解码能力,自适应地选择解码层次和调整帧播放速率.最终采用多线程技术实现了MPEG-2 TS复用H.264高清视频流的解码播放,并给出试验结果.
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| 关 键 词： | 控制系统 多级缓冲 多线程 |
Design and Implementation of Multi-level Buffers for IPTV High-definition Streams Smoothing and Continuous Playback |
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| LIN Jing-hua,LEI Wei-min,BAI Song,LI Ling-nan.Design and Implementation of Multi-level Buffers for IPTV High-definition Streams Smoothing and Continuous Playback[J].Mini-micro Systems,2010,31(5). |
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| Authors: | LIN Jing-hua LEI Wei-min BAI Song LI Ling-nan |
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| Affiliation: | LIN Jing-hua1,2,LEI Wei-min2,BAI Song1,LI Ling-nan1,21(Graduate Student Institute,Chinese Academy of Science,Beijing 100039,China)2(Network , Communications,Shenyang Institute of Computing Technology,Shenyang 110171,China) |
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| Abstract: | The streaming media system has been researched as a complex control system.In the paper,the system model which supports multi-level feedback mechanism has been depicted and the procedure of media processing has been analyzed in detailed from media receiving to picture displaying.For improving the Quality of user' Experience (QoE) and playing out smoothly and continuously,a multi-level buffering mechanism has been designed,which reduces the impact of IP network jitter and packet loss.The streaming player can... |
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| Keywords: | MPEG-2 TS H 264 |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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