Media slicing memory method

A media and sharding technology, applied in memory systems, color TV components, TV system components, etc., can solve the problems of complex load balancing algorithm, increase system cost, increase storage overhead, etc., and save load balancing algorithm , smooth processing power, and the effect of improving scalability

Inactive Publication Date: 2008-03-05
ZTE CORP
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  • Application Information

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Problems solved by technology

Both of these technologies require multi-copy storage of frequently accessed popular programs or program segments, which not only in

Method used

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings.

[0027] The preferred embodiment of the method for the storage of media slices proposed by the present invention is:

[0028] (1) Media file is divided into a plurality of fragments, and each fragment generates a fragmentation of fixed size, and this fragmentation should be greater than the size of maximum video frame plus slice header overhead byte and reserved byte, in this preferred implementation In the example it is 64KB. The structure of each slice is as shown in Figure 2, wherein each slice includes at least a slice header and a data area; the above-mentioned data area is used to store the audio and video frames of the slice corresponding to the slice in order of time stamp; the above-mentioned slice header at least Including the segment number of the segment, the media identifier corresponding to the segment, and the frame number and key frame number of audio a...

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Abstract

The method includes: 1, Divide the media file into several fragments. Each fragment forms a slice with fixed size. Each slice at least includes one slice head and one data area. The head at least includes the slice number and the media label corresponding to this slice. The data area is for storing audio/video frame of the fragment corresponding to the slice according to the time stamp sequence; 2, Store evenly the formed slices in step 1 into several media units and build the storage record. This invention is mainly applied in grouped VOD system. It enhances storage efficiency, retrenches tediously load-balance calculation and increases the system expansibility.

Description

technical field [0001] The present invention relates to the fields of Internet TV (Television over Internet Protocol, referred to as IPTV) and distributed streaming media, and in particular to a method for media segment storage in a Video On Demand (Video On Demand, hereinafter referred to as VOD) system. Background technique [0002] The cluster VOD system structure is shown in Figure 1, which consists of a control unit and multiple stored media units. The control unit is used to process user requests and manage the storage of media files in the media unit, and the media unit is used to store media content and provide media data services. The client is connected with the control unit and media unit of the system through the network. [0003] In cluster distributed VOD system, media storage capacity and cluster load balancing have always been the focus of research. In the existing research, there are mainly two technologies of whole file storage and coarse-grained shard st...

Claims

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Application Information

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IPC IPC(8): H04N5/91H04N7/173G11B20/10G06F12/00
Inventor 田洪亮
Owner ZTE CORP
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