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Video slice generation method and device, cache server

A technology of video fragments and slicing, which is applied in video data indexing, video data retrieval, instruments, etc. It can solve the problem of large resource occupation and achieve the effect of saving transmission bandwidth and buffer space

Inactive Publication Date: 2018-10-09
广东省南方数字电视无线传播有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on this, it is necessary to provide a method and device for generating video slices, and a cache server for the existing video slice methods that need to cache different slices for different slice formats and occupy a large amount of resources.

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  • Video slice generation method and device, cache server
  • Video slice generation method and device, cache server
  • Video slice generation method and device, cache server

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Embodiment Construction

[0034] The technical solution of the present invention will be described below in conjunction with the drawings.

[0035] Such as figure 1 As shown, the embodiment of the present invention provides a method for generating video slices, including the following steps:

[0036] S101: Receive a video slice acquisition request;

[0037] In this step, the video slice acquisition request can be sent by the requester. The requesting party may be a video playback terminal, for example, a computer, a mobile phone, a tablet computer, and other smart terminals. In an embodiment, the video slice acquisition request may be a URL (Uniform Resource Locator, uniform resource locator), and information such as a slice serial number and a slice format can be obtained by parsing the URL. The target slice format can be HLS (HTTP Live Streaming, HTTP live data stream), HDS (HTTP Dynamic Streaming, HTTP dynamic data stream), MPEG (Moving Picture Experts Group, Dynamic Picture Experts Group)-DASH (Dynamic ...

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PUM

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Abstract

The invention relates to a video slice generating method and device, and a cache server. The video slice generating method comprises the following steps: receiving a video slice obtaining request; obtaining and caching a virtual slice information file corresponding to the video slices and video fragments of the original video file in a corresponding range corresponding to the video slices; and slicing the video fragments according to the virtual slice information file to generate the video slices. According to the invention, the video slices are expressed with a highly compact expression in the way of data reference through the virtual slice information file; so that the real slicing operation is not required to perform on the original video, and the original video fragments are cached tothe cache system in the way of the source returning request when a plurality of slicing formats are existed, so as to achieve the purpose that the cache server transfers and caches only one original video from the source video server, therefore, it is not needed to cache multiple pieces of video data, the cache space is saved, and the resource occupancy of the system is reduced.

Description

Technical field [0001] The present invention relates to the field of streaming media live broadcast on-demand technology, in particular to a method and device for generating video slices, and a cache server. Background technique [0002] With the development of Internet multimedia technology, with the continuous increase of network bandwidth today, online video has attracted a large number of users with its convenient access experience, diversified movie sources, and real-time update speed, making online video an indispensable part of users’ online life. An important part that is missing. [0003] Compared with the traditional streaming media on-demand transmission by frame, the major video sites on the Internet now adopt the slice transmission protocol, and the slice transmission method can work well on the HTTP protocol, various Web caches and CDNs; However, various browsers and various viewing terminals support different slice formats. The video server needs to slice the origin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/845H04N21/231H04N21/239H04N21/234G06F17/30
CPCG06F16/71H04N21/23106H04N21/234H04N21/2393H04N21/8455H04N21/8456
Inventor 刘海峰张海波
Owner 广东省南方数字电视无线传播有限公司