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Quick start system and method for multicast channels

A technology of fast startup and channels, applied in the field of streaming media, can solve problems such as long switching time, achieve the effect of increasing startup speed and improving user experience

Active Publication Date: 2010-05-19
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its purpose is to solve the problem of long switching time when the player switches from one multicast channel to another. It works at the network device level and does not solve the aforementioned problems

Method used

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  • Quick start system and method for multicast channels
  • Quick start system and method for multicast channels
  • Quick start system and method for multicast channels

Examples

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Embodiment Construction

[0048] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0049] Such as figure 2 As shown, a multicast channel system consists of a headend, a streaming server and a number of different players. The headend and the streaming server are logically two entities, which can be two different physical entities or the same physical implementation. The streaming server continuously receives streams from the headend in real time and saves them in its own history buffer.

[0050] The headend is responsible for generating or transferring the media data of the channel, and sending it to different client devices, without signaling interaction with the player.

[0051] A player is a device with a buffer, manipulated by the end user, that receives and plays media data. For IPTV, it is more called a set-top box (STB).

[0052] The streaming server is an entity that provides personalized streaming media ser...

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PUM

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Abstract

The invention discloses a system for rapidly starting a multicast channel, which comprises a streaming server, a headend and a player; wherein, the headend generates or transfers media data of the channel and sends the media data; the player is provided with a buffer used for playing the media data; the streaming server is provided with a history buffer; history bit stream is conserved in the history buffer; the bit stream sent by the headend is received and conserved in the history buffer; when the streaming server receives a multicast request of the player, the history bit stream in the history buffer is filled in the multicast request of the player by the streaming server in a way of unicast; when the player is added in the broadcast group, the multicast bit stream is stitched with theunicast bit stream. The invention also discloses a method for rapidly starting the multicast channel.

Description

technical field [0001] The invention relates to a streaming media technology, in particular to a system and method for quickly starting a multicast channel. Background technique [0002] In an existing streaming media channel system, the headend, streaming server and player are the most basic components. Usually, the TCP / IP protocol is used to transfer the code stream and signaling, and the player and the streaming server are exchanged using the RTSP protocol. Signaling, carrying payloads in formats such as RTP or TS on top of UDP or TCP protocols, and transmitting media data. In general, UDP is more commonly used than TCP. [0003] Multicast is a kind of UDP. Due to history and many existing networks cannot support multicast well, when the network cannot support multicast protocol, the stream server can only receive the code stream sent by the head end, and then pass TCP The protocol or the point-to-point UDP protocol is distributed to each player. The process of distribu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/18H04L12/54H04L29/06H04N21/266H04N21/63H04N21/6405
Inventor 陈重奋
Owner ZTE CORP
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