Video coding method and device and storage medium

The invention provides a video coding method and device and a storage medium, relates to the technical field of communication, and can improve the video coding speed. The method comprises the following steps: determining first complexity information of a target image frame; the target image frame is an image frame in a video; the first complexity information is complexity information of the target image frame under the fixed resolution; the fixed resolution is used for aligning key frames of the video; determining second complexity information according to the first complexity information; the second complexity information is complexity information of the target image frame under the preset resolution; the fixed resolution is different from the preset resolution; and performing code rate control on the target image frame according to the second complexity information. The present disclosure is used in a video encoding process. 本公开提供了一种视频编码方法、装置及存储介质，涉及通信技术领域，能够提高视频编码速度。该方法包括：确定目标图像帧的第一复杂度信息；目标图像帧为视频中的图像帧；第一复杂