Method and device for generating cover moving picture of multimedia file

A technology of multimedia files and animations, applied in the field of video processing, to reduce labor costs, improve production efficiency and quality

Pending Publication Date: 2021-03-30
SHANGHAI BILIBILI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Embodiments of the present invention provide a method and device for generating a cover animation of a multimedia file, so as

Method used

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  • Method and device for generating cover moving picture of multimedia file
  • Method and device for generating cover moving picture of multimedia file
  • Method and device for generating cover moving picture of multimedia file

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Embodiment Construction

[0085] In order to solve the problem existing in the prior art that the cover animation of the multimedia file is configured relying on image frames manually intercepted by operators. In the embodiment of the present application, after acquiring the multimedia file and the barrage set corresponding to the multimedia file, the playing duration of the multimedia file is divided into several time periods, and then based on the barrage state information of each time period, screen out the content that meets the preset requirements. A conditional time period is set, and corresponding animations are respectively generated from the video images corresponding to the time period, and finally a animation is selected from the animation as the cover animation of the multimedia file.

[0086] Preferred embodiments of the present application will be described in further detail below in conjunction with the accompanying drawings.

[0087] In the embodiment of the present application, the mul...

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Abstract

The invention relates to the field of video processing, in particular to a method and a device for generating a cover moving picture of a multimedia file, which are used for generating the cover moving picture of the multimedia file. The method comprises the steps: after a multimedia file and a bullet screen set corresponding to the multimedia file are obtained, dividing the playing duration of the multimedia file into a plurality of time periods, and calculating the bullet screen state information of each time period based on the corresponding relation between each time period and each bulletscreen in the bullet screen set; screening out a time period when the bullet screen state information meets a preset condition, generating corresponding moving pictures based on video images corresponding to the screened time period, and finally selecting one moving picture from the obtained moving pictures to serve as a cover moving picture of the multimedia file. Thus, the cover moving pictureis generated without depending on manually intercepted image frames, the labor cost is greatly reduced, the generation efficiency of the cover moving picture is improved, and the cover moving picturecan display the essence content of the multimedia file as much as possible.

Description

technical field [0001] The invention relates to the field of video processing, in particular to a method and device for generating a cover animation of a multimedia file. Background technique [0002] With the development of technology, the playing forms of multimedia files have undergone various changes. When people browse multimedia files, they can know the essence of the multimedia files through the cover animation of the multimedia files in advance. The realization of this function depends on The interception of the essence image frame in the multimedia file and the configuration of the cover animation. [0003] Under related technologies, the cover animation of a multimedia file relies on operators manually intercepting image frames in the multimedia file, and then using the intercepted image frames to generate the cover animation of the multimedia file. [0004] However, when the above-mentioned method is used to generate the cover animation of the multimedia file, a ...

Claims

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Application Information

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IPC IPC(8): H04N21/235H04N21/234H04N21/845
CPCH04N21/235H04N21/234H04N21/8456G11B27/031G11B27/11G11B27/102
Inventor 凌正鑫
Owner SHANGHAI BILIBILI TECH CO LTD
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