python opencv 把多张图片合成视频

# -*- coding: utf-8 -*-


import os
import cv2

def picToVideo(picDir,videoName):
    ##完成写入对象的创建，第一个参数是合成之后的视频的名称，
    #第二个参数是可以使用的编码器，
    #第三个参数是帧率即每秒钟展示多少张图片，
    #第四个参数是图片大小信息
    # 设置写入格式
    fourcc = cv2.VideoWriter_fourcc('M', 'P', '4', 'V')
    indexImg0 = cv2.imread("G:\\ACTION_2022062401\\2022062411240000.jpg")

    print(indexImg0.shape)
    videowrite = cv2.VideoWriter(videoName,fourcc,20,(indexImg0.shape[1],indexImg0.shape[0]))
    
    
    for rt, dirs, filesName in os.walk(picDir):
        print(dirs)
        print(filesName)
        print(rt)

        for indexFileName in filesName:
            indexFilePath = os.path.join('%s\\%s' % (rt, indexFileName))
            #print(indexFilePath)
            indexImg = cv2.imread(indexFilePath)
            videowrite.write(indexImg)

    videowrite.release()    
    print("--------------end----------")


#picToVideo("G:\\ACTION_2022062401\\output_action_1","G:\\ACTION_2022062401\\1.mp4")
picToVideo("G:\\ACTION_2022062401\\output_action_2","G:\\ACTION_2022062401\\2.mp4")
#picToVideo("G:\\ACTION_2022062401\\output_action_3","G:\\ACTION_2022062401\\3.mp4")

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