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Media stream switching synchronization method and streaming media server

A streaming media server and media streaming technology, applied in the field of communication, can solve problems such as the inability to synchronize time stamps, and achieve the effect of improving business experience

Active Publication Date: 2013-09-11
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, directly comparing the timestamps of different media streams does not allow for synchronization

Method used

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  • Media stream switching synchronization method and streaming media server
  • Media stream switching synchronization method and streaming media server
  • Media stream switching synchronization method and streaming media server

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only embodiments of the present invention. Based on the embodiments of the present invention, this All other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0032] Due to the synchronization of media streams based on the NTP clock mechanism, it is necessary to ensure that the two media streams to be switched use the same NTP clock, otherwise the switching between media streams will not be completed, but in practical applications, sometimes it is difficult to ensure that all media streams The NTP clocks between them are of the same source, and often fail to perform synchronous switching or switch errors. Aiming at this, the present...

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Abstract

A streaming media server and a method for synchronization in media stream switching are disclosed. In the embodiments of the present invention, a streaming media data packet is modified; NTP timestamps are replaced by system time of the streaming media server in order that the Network Time Protocol (NTP) timestamps of several media streams are switched from distinct sources to the same source; or the calibration of the Real-time Transport Protocol (RTP) timestamps of several received media streams is absolutely normalized according to the system time of the streaming media server directly; thereby the synchronization in media switching is realized. The problem that media streams of different NTP timepieces can not be switched in the prior art is resolved, and the user service experience is improved.

Description

technical field [0001] The invention relates to the technical field of communication, in particular to a media stream switching synchronization method and a streaming media server. Background technique [0002] Realtime Transport Protocol (RTP): It is a transmission protocol for multimedia data streams on the Internet (Internet). RTP is defined to work in one-to-one or one-to-many transmission situations, and its purpose is to provide time information and achieve stream synchronization. RTP itself only guarantees the transmission of real-time data, and does not provide a reliable delivery mechanism for sequential delivery of data packets, nor does it provide flow control or congestion control. It relies on Real-time Transmission Control Protocol (RTCP) to provide services. [0003] The RTCP protocol is responsible for managing the quality of transmission and exchanging control information between current application processes. During the RTP session, each participant perio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/06H04L29/08H04L1/16
CPCH04L29/06455H04L29/06993H04L69/28H04L65/4076H04L65/611
Inventor 刘启铭仇刚
Owner HUAWEI TECH CO LTD