电信科学 ›› 2014, Vol. 30 ›› Issue (5): 15-19.doi: 10.3969/j.issn.1000-0801.2014.05.002

• 专题：互联网视频智能技术 •    下一篇

OTT TV和IPTV的技术比较分析

施唯佳1,蒋力1,2,贾立鼎1   

  1. 1 中国电信股份有限公司上海研究院 上海 200122
    2 中国电信IPTV实验室 上海 200122
  • 出版日期:2014-05-15 发布日期:2017-07-05

Technique Comparative Analysis of OTT TV and IPTV

Weijia Shi1,Li Jiang1,2,Liding Jia1   

  1. 1 Shanghai Research Institute of China Telecom Co., Ltd., Shanghai 200122, China
    2 IPTV Lab of China Telecom Co., Ltd., Shanghai 200122, China
  • Online:2014-05-15 Published:2017-07-05

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被引次数

14

摘要：

随着OTT TV 业务的快速发展，对IPTV 业务的发展带来了巨大冲击，因此有必要从业务现状出发对两种业务采用的不同技术实现方式进行研究。分别阐述了OTT TV和IPTV在编码技术、流传输技术和终端技术上的实现原理，并对两种业务技术实现的差异性进行深入比较，最后根据这些比较分析，发掘造成IPTV 和OTT TV技术差异化的主要因素以及未来TV屏视频服务技术发展的方向和趋势。

关键词: OTT, IPTV, 可变化特率, 固定比特率, HTP, RTSP, 智能机顶盒

Abstract:

With the development of OTT TV service, more and more influences on IPTV service were brought. So based on the current situation, the different technical realizations between OTT TV and IPTV were discussed. And the theory of video coding technique, steaming transmission technique and terminal technique were expound, specially the differences between OTT TV and IPTV were compared. Then the reasons of making these differences were found, accordingly the direction and trend of IP video service technique were predicted.

Key words: OTT, IPTV, VBR, CBR, HTTP, RTSP, smart STB

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