Program broadcasting system and method

Abstract

The invention discloses a program broadcasting system and a method. The system comprises a service subsystem, a streaming media server and an STB subsystem, wherein the service subsystem is used for creating multicast or unitcast self-adaptive channels in a channel list; when in creating the multicast or unitcast self-adaptive channels, the URL set by the multicast or unitcast self-adaptive channels includes a multicast URL and a unitcast URL; the streaming media server comprises a multicast transcoder and a unitcast streaming media server, wherein the multicast transcoder is used for receiving and providing multicast program codes, and the unitcast streaming media server is used for receiving and providing unitcast program codes; and the STB subsystem is used for analyzing the URL of the channel selected by a user from the channel list according to the preset preferred broadcasting mode, using the analyzed URL to request multicast program codes from the multicast transcoder or request unitcast program codes from a unitcast transcoder, and carrying out broadcasting according to the received multicast program codes or the unitcast program codes from the streaming media server. The invention reduces the cost of repeated networking.

Description

technical field [0001] The present invention relates to the communication field, in particular, to a program playing system and method. Background technique [0002] Currently, Internet Protocol TV OR Interactive Personal TV (IPTV for short) channels mainly include multicast channels and unicast channels. Among them, for the unicast mode, a separate data channel is established between the client and the streaming media server, and each data packet sent from one server can only be transmitted to one client. In this way, the streaming media server must send a copy of the data packet separately for each user, which will not only cause the streaming media server to be overwhelmed, but also cause the congestion of the backbone network. [0003] For the multicast mode, the communication mode between hosts is one-to-one group, that is, the hosts joining the same group can receive all the data in this group, and the switches and routers in the network only copy to those who need it...

AI Technical Summary

Problems solved by technology

[0006] The present invention is proposed aiming at the problems in the related art that a separate multicast network is set up for IPTV, which leads to repeated networking, expensive expenses, and the difficulty of cross-regional and cross-regional passage of multicast throughout the country. For this reason, the main purpose of the present invention It is to provide an improved program playing solution to solve at least one of the above problems

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