Video recording device and method

Abstract

The invention discloses a video recording device. The video recording device comprises a camera module, a video processing module, a video encoding module and a video synthesis module, wherein the video processing module is used for acquiring a video image output by the camera module, transmitting the video image to the video encoding module, judging the scene type of the video image, determining a new frame rate code rate strategy, and regulating the frame rate set by the camera module and the code rate set by the video encoding module according to the new frame rate code rate strategy. The invention also discloses a video recording method which is implemented by utilizing the video recording device. By using the video recording device and the video recording method, the frame rate and the code rate can be regulated according to the difference between output video images.

Description

technical field [0001] The present invention relates to video recording equipment, more specifically, to a video recording device and method capable of adjusting frame rate and code rate according to different output video images. Background technique [0002] Frame rate is the number of images per second, one frame is a still picture, and consecutive frames form animation. A high frame rate results in smoother and more realistic animations. Fps is the abbreviation of frames per second, that is, the number of frames per second displayed, which is the unit of frame rate. The more frames per second (fps), the smoother the displayed motion will be. Code stream Data Rate, also called bit rate, refers to the data flow used by video per unit time, and is the most important part of picture quality control in video coding. Under the same resolution and frame rate, the larger the code stream of the video file, the smaller the compression ratio and the higher the picture quality. ...

AI Technical Summary

Problems solved by technology

[0004] Defect 1: The frame rate set by the camera will not change during the video recording process, so when recording a still picture and a sharply changing picture, because the frame rate is the same, so for the case of recording a sharply changing picture, The fluency of the recording will be affected

[0005] Defect 2: The bit rate will be fixed within a certain range when shooting, and the encoding bit rate of the video will not be automatically adjusted according to the scene, and the user cannot adjust the bit rate

If the picture of the video image changes and the initial set parameters are still used, the above two defects will cause the video device to be unable to record every detail of the change, which will affect the quality of the generated video file

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