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Method and device for video playback

A video playback and video frame technology, applied in the field of video processing, can solve the problems of reducing the first screen time and live broadcast delay of live video, and the video bit rate does not increase significantly, so as to achieve the effect of reducing the first screen time and live broadcast delay

Inactive Publication Date: 2019-04-02
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The present application provides a method and device for video playback, which are used to solve the problems in the prior art that the first screen time and live delay of live video cannot be reduced without significantly increasing the video bit rate.

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  • Method and device for video playback
  • Method and device for video playback

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Embodiment Construction

[0055] In order to make the purpose, technical solutions and advantages of the application clearer, the application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the application, not all of them. . Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0056] In this embodiment of the present application, a second video data is added on the basis of the original first video data. The second video data includes at least one target frame, and the target frame adopts intra-frame independent coding. These target frames are generated according to the original frames on the first video data.

[0057] When the user needs to watch the live broadcast, according to the time of the received playback request, find the indepe...

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Abstract

The invention relates to the technical field of video processing, in particular to a method and device for video playback, so as to solve the problem that first screen time and live broadcast delay ofvideo live broadcast can not be reduced on the premise that a video bit rate is not significantly improved in the prior art. The method of the embodiment comprises steps: a playback request of a terminal is received; first video data are acquired; a target frame is used to replace the original frame used in the first video data in generating the target frame; and the replaced first video data arepushed to the terminal. In the embodiment of the invention, the first video data do not need to be changed, the target frame is used to replace the original frame used in the first video data in generating the target frame after the playback request of the terminal is received, video frame replacement is realized through adding the number of extra target frames, significant improvement of the bitrate of the first video data on the premise of adding the number of the target frames is not caused, and thus, the first screen time and the live broadcast delay of the video live broadcast are reduced on the premise that a video bit rate is not significantly improved.

Description

technical field [0001] The present application relates to the technical field of video processing, in particular to a video playing method and device. Background technique [0002] With the rapid development of the Internet, webcasting has become popular rapidly. Webcasting refers to a method in which multiple users can watch videos through the live broadcasting platform through the network system at the same time. [0003] The live broadcast system generally includes several parts: client streaming → CDN (Content Delivery Network, content distribution network) access → cloud transcoding → CDN distribution → player playback. [0004] The first screen time of the webcast refers to the time interval between when the customer clicks the link of the live broadcast room and sees the video screen of the live broadcast room. The first screen time is mainly composed of the following parts: network message communication time, media data transmission time between the server and the ...

Claims

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Application Information

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IPC IPC(8): H04N21/2187H04N21/231H04N21/2343H04N21/2387
CPCH04N21/2187H04N21/23106H04N21/2343H04N21/2387
Inventor 梅大为熊诗尧孟辰
Owner ALIBABA GRP HLDG LTD
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