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Video variable-speed playing method, device, electronic equipment and computer readable medium

A playback method and video technology, applied in the computer field, can solve the problems such as the inability to accurately correspond to the time stamp of constant-speed playback and the time stamp of variable-speed playback, the inability to play the video, and the poor user experience.

Active Publication Date: 2021-12-21
BEIJING BYTEDANCE NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, when previewing a video edited with a curve variable speed, since the normal-speed playback time stamps of each video frame cannot be accurately matched with the variable-speed playback time stamps, the video cannot be played from any video frame, and the user experience is poor.

Method used

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  • Video variable-speed playing method, device, electronic equipment and computer readable medium
  • Video variable-speed playing method, device, electronic equipment and computer readable medium
  • Video variable-speed playing method, device, electronic equipment and computer readable medium

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Embodiment Construction

[0027] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the drawings, it should be understood that the disclosure may be embodied in various forms and should not be construed as limited to the embodiments set forth herein; A more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for exemplary purposes only, and are not intended to limit the protection scope of the present disclosure.

[0028] It should be understood that the various steps described in the method implementations of the present disclosure may be executed in different orders, and / or executed in parallel. Additionally, method embodiments may include additional steps and / or omit performing illustrated steps. The scope of the present disclosure is not limited in this regard. ...

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Abstract

The invention provides a video variable-speed playing method and device, electronic equipment and a computer readable medium, and relates to the technical field of computers. The method comprises the following steps: in response to a curve speed change instruction, collecting a constant-speed playing timestamp and a variable-speed playing speed of each first specified video frame in a video; converting the constant-speed playing timestamp into a variable-speed playing timestamp; establishing a speed change curve; fitting the curve into a straight line segment; determining a corresponding constant-speed playing timestamp based on a second specified video frame indicated by the variable-speed playing instruction; determining a corresponding variable-speed playing timestamp based on the constant-speed playing timestamp and the straight line segment, and starting to play the video at a variable speed from the variable-speed playing timestamp; determining the variable-speed playing timestamp of the second specified video frame through the inverse function of the integral function of the first straight line segment, wherein the first straight line segment is the straight line segment where the variable-speed playing timestamp of the second specified video frame is located in the straight line segments. According to the invention, the video can be played at a variable speed from any video frame during previewing.

Description

technical field [0001] The present disclosure relates to the field of computer technology, and in particular, the present disclosure relates to a method, device, electronic device and computer-readable medium for variable-speed video playback. Background technique [0002] With the development of technology, video editing functions are becoming more and more diverse. At present, video editing also supports curve speed change. Curve speed change editing refers to the speed change setting for a certain video frame of the video. When editing, you can use the preset curve speed change template, or you can customize the video frame that needs to change speed and its speed change. speed. Before curve variable speed editing, each video frame in the video has a corresponding constant speed playback timestamp and normal speed playback speed; after curve variable speed editing, each video frame in the video has a corresponding variable speed playback timestamp and variable speed play...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N21/4402H04N21/845
CPCH04N21/4402H04N21/440281H04N21/8456H04N21/47217H04N5/783H04N21/8547G11B27/005
Inventor 何思羽张元昊
Owner BEIJING BYTEDANCE NETWORK TECH CO LTD
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