Video frame rendering method and device

Abstract

The embodiment of the invention discloses a video frame rendering method and a video frame rendering device. The video frame rendering method comprises the following steps: receiving a rendering instruction of a user and a to-be-rendered video frame; analyzing the rendering instruction, and determining special effects corresponding to the video frame and an action time interval of each special effect; extracting the identifier information of the determined special effects, and determining GLSL (open graphics library shading language) programs corresponding to the special effects, wherein each special effect corresponds to one GLSL program; respectively judging whether each special effect corresponding to the video frame meets a preset rule according to the action time interval of each special effect and the extracted identifier information of each special effect; combining the GLSL programs corresponding to the special effects which meet the preset rule to obtain a combined GLSL program; executing the combined GLSL program and the GLSL programs corresponding to the special effects which do not meet the preset rule to obtain a rendered special-effect frame. According to the technical scheme, the execution frequency of the GLSL programs is reduced, and the transfer frequency of repeating data is reduced, so that the rendering efficiency is improved.

Description

technical field [0001] The present invention relates to the technical field of video frame processing, in particular to a video frame rendering method and device. Background technique [0002] In this era of micro-shooting, people hope to use software with video editing functions in mobile terminals such as mobile phones and tablet computers to convert the scattered photos and images of themselves and their family and friends into interesting dynamic videos and share them with family and friends. In this conversion process, rendering video frames is an important link. [0003] In the prior art, the video rendering module in the software with video editing function uses OpenGL (Open Graphics Library, Open Graphics Library) to render video frames. During the rendering process, each special effect corresponds to a GLSL (OpenGL Shading Language, OpenGL Shading language) programs, multiple special effects correspond to multiple GLSL programs, and the video rendering module needs...

AI Technical Summary

Problems solved by technology

[0004] However, when a video frame needs to be rendered with multiple special effects, the video rendering module needs to run the GLSL programs corresponding to the special effects one by one. The more times the GLSL program is run, the more times the repeated data is transmitted, and the rendering efficiency is lower.

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