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Method and content distribution network node for distributing streaming media

A streaming media and node technology, applied in the field of communication, can solve problems such as affecting the response speed of CDN nodes, and achieve the effect of speeding up service response speed and reducing size

Active Publication Date: 2018-09-14
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the I frame index information contains a lot of redundant information, it affects the response speed of the CDN node

Method used

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  • Method and content distribution network node for distributing streaming media
  • Method and content distribution network node for distributing streaming media
  • Method and content distribution network node for distributing streaming media

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Embodiment Construction

[0061]The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0062] The relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0063] At the same time, it should be understood that, for the convenience of de...

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Abstract

The invention discloses a method of distributing streaming media and a content distribution network node. When a broadcasting request for carrying out variable speed distribution on the current distributed streaming media is received, speed multiplication parameters contained in the broadcasting request are extracted; according to the current system time, an I frame at the current broadcasting point is queried from pre-stored I frame index information; in bitmap index information in the I frame at the current broadcasting point, whether the value of an information bit relevant to the speed multiplication parameters is 1 is judged; if the value of the information bit relevant to the speed multiplication parameters is 1, frame offset information relevant to the I frame at the current broadcasting point and the speed multiplication parameters are extracted in the I frame index information; and the streaming media determined by the frame offset information is distributed. Thus, the size of an index file can be reduced significantly, and the CDN node service response speed is quickened.

Description

technical field [0001] The invention relates to the communication field, in particular to a method for distributing streaming media and a content distribution network node. Background technique [0002] When a CDN (Content Delivery Network, Content Delivery Network) node accelerates streaming media, it first needs to generate an index file, which lists information about auxiliary streaming media delivery. [0003] The index file generated by the existing technology identifies all the I-frame (key frame) information for all double-speed files. The CDN needs to download the index file before streaming. The larger the index file, the greater the response delay of the streaming service. [0004] For IPTV (Internet Protocol Television, Internet TV) and other streaming media services, a basic rate file of an on-demand content, and various double-speed files have their I-frame positions identified in the index, so the index needs to identify and record a lot of I-frame information....

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N21/61H04N21/63H04N21/2343H04N21/262
Inventor 梁洁陈戈庄一嵘韩晓梅陈学亮周晓燕海锦霞李江崴
Owner CHINA TELECOM CORP LTD
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