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Video synchronous playing method and device

A technology of video synchronization and playback method, which is applied in the video field, can solve the problems of uncontrolled video and frequent pauses, and achieve the effect of avoiding uncontrolled and frequent pauses and ensuring the playback rate

Inactive Publication Date: 2018-09-28
ZHEJIANG DAHUA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The embodiment of the present application provides a video synchronous playback method and device to solve the problems in the prior art that the videos of various channels are uncontrolled and frequently paused during the synchronous playback process

Method used

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Embodiment Construction

[0016] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention 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 present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0017] figure 1 It is a flow chart of a video synchronous playback method provided by the embodiment of the present application. Such as figure 1 As shown, the method includes:

[0018] In step S101, the playback device obtains the time marked by the time stamp in each channel of video to be played.

[0019] The playback device starts the device driver, obtains the time stamps in the various videos, and the time stamps of the various...

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Abstract

The invention discloses a video synchronous playing method and a video synchronous playing device. The method comprises the step of: acquiring the time marked by a timestamp in each video to be played; using a video with the time marked by the timestamp as a preset reference time as a reference video, setting a playback rate of the reference video as a reference rate; determining, for the first video, a difference between the time marked by the timestamp in the first video and the reference time; querying the playback control information corresponding to the threshold interval to which the difference belongs according to a preset relationship between the plurality of threshold intervals and the playback control information; adjusting the playback rate of the first video according to the queried playback control information, and playing the first video according to the adjusted playback rate, wherein the first video is any video in each video other than the reference video in each video.

Description

technical field [0001] The present invention relates to the field of video technology, in particular to a video synchronous playback method and device. Background technique [0002] In synchronous playback of multiple videos, a common method is to obtain the timestamps of each video, use the video with the earliest time marked in the timestamp as the priority video, and play the priority video. Comparing the play time difference of each non-priority video with the priority video, if the time difference is greater than or equal to the preset threshold, the non-priority video will be paused; if the time difference is less than the preset threshold, the non-priority video will be played. The defect of the prior art is: if the threshold value is set larger, such as 5 seconds, the video with a time difference within 5 seconds will not be controlled, and the time difference will continue, and the video images of various channels will not be synchronized within the time difference;...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/43H04N21/8547H04N21/4402H04N21/2387H04N21/2662
CPCH04N21/2387H04N21/2662H04N21/4307H04N21/440281H04N21/8547
Inventor 秦川
Owner ZHEJIANG DAHUA TECH CO LTD
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