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Multimedia slicing switching method and system based on content slicing

A technology for content fragmentation and switching systems

Inactive Publication Date: 2013-12-11
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the field of multimedia communication, media content is usually relatively large, occupying a relatively large storage space, occupying a large amount of bandwidth when transmitting in the network, and also causing difficulties in transmitting a complete program of media between different media servers

Method used

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  • Multimedia slicing switching method and system based on content slicing
  • Multimedia slicing switching method and system based on content slicing
  • Multimedia slicing switching method and system based on content slicing

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Such as figure 1 As shown, a typical multimedia system includes: a terminal, one or more media server nodes, and an index server. In actual networking, the index server in the present invention may also exist as a software functional entity in the redirection server or in other network devices. The terminal may be a user set-top box or a personal computer, and the node media server is mainly responsible for media storage, while the index server is responsible for maintaining the distribution of content fragments on each media node. figure 1 Shards 1, 2, and 3 are stored on Node A, Shards 4, 5, and 6 are stored on Node B, and Shards 7, 8, and 9 are stored on Node C.

[0035] exist figure 1 Among them, each media node may be organized in a P2P manner, and there is media flow interaction between each other; there is media flow interaction between terminal equipment and each media node; and each media node, user terminal equipment and index server There is control signal...

Embodiment 2

[0038] In this embodiment, the media node that accepts the first fragmentation request acts as a proxy server (proxy) function. When there is no subsequent content fragmentation on this node, the subsequent fragmentation is downloaded to other server nodes and forwarded to other server nodes by querying the index server. Terminal Equipment. This method does not require user terminals to participate in the switching process, and can better realize seamless playback of a complete media program, but may cause unnecessary media streams between media server nodes and waste network bandwidth. The specific implementation steps are as follows:

[0039] Step 1: The user chooses to watch a program through the EPG, and the EPG tells the user terminal device the location of the first segment of the program by querying the index server, such as figure 2 shown. Or the EPG directly tells the user terminal device the address of the index server, and the terminal device requests the festiva...

Embodiment 3

[0045] In this embodiment, it is implemented by the network side. The media server and the index server interactively perceive the distribution of the program fragments watched by the user, and when the fragments on one media node need to be switched to another media node after the fragments are played, the media server Servers are notified, and the media node where the next segment is located actively sends the media stream to the terminal device after being notified, and the user terminal device does not need to participate in the interaction during the process.

[0046] Step 1: The user chooses to watch a program through the EPG, and the EPG tells the user terminal device the location of the first segment of the program by querying the index server, such as figure 2 shown. Or the EPG directly tells the user terminal device the address of the index server, and the terminal device requests the program from the index server, and the index server returns the location of the fi...

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Abstract

The invention provides a multimedia slicing switching method and system based on content slicing. The subsequent content slice is downloaded to the initial node, when the previous content slice playing is finished, the next content slice is sent to a terminal to play by the initial node; or the initial node indexes information according to the subsequent content slice provided by the index serverand informs the subsequent node to send the subsequent content slice to the terminal to play when the previous content slice playing is finished; or the initial node informs the terminal about the subsequent content slice index information before the slice content on the initial node is completely transmitted, the terminal establishes a media passage with the subsequent node for storing the subsequent content slice, the subsequent node sends the subsequent content slice to the terminal to play, so that playing continuity can be ensured when switching playing of different content slices storedon different network nodes.

Description

Technical field: [0001] The invention relates to the field of multimedia communication, in particular to the field of IPTV system based on content fragmentation. Background technique: [0002] In the field of multimedia communication, media content is usually relatively large, occupying a relatively large storage space, occupying a large amount of bandwidth when transmitting in the network, and also causing difficulties in transmitting a complete program of media between different media servers. Usually, the media of a complete program is divided into multiple content fragments, and the content fragments are distributed and stored on multiple network nodes, and the multiple nodes jointly provide the content fragments required to form a complete program. When playing a program divided into multiple content fragments, in order to ensure the continuity of playing the entire complete content, it is necessary to obtain different content fragments from different network nodes for ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/63H04N21/254H04N21/845H04L29/08
Inventor 周扬
Owner ZTE CORP