Python拼接视频_python视频的竖直拼接

import cv2
import numpy as np
import matplotlib.pyplot as plt

def concatenate_video(input_video1, input_video2, output_video):
    video_caputre1 = cv2.VideoCapture(input_video1)
    video_caputre2 = cv2.VideoCapture(input_video2)

    # get video parameters
    fps = video_caputre1.get(cv2.CAP_PROP_FPS)
    width = video_caputre1.get(cv2.CAP_PROP_FRAME_WIDTH)
    height = video_caputre1.get(cv2.CAP_PROP_FRAME_HEIGHT)
    num1 = video_caputre1.get(cv2.CAP_PROP_FRAME_COUNT)

    print("1_fps:", fps)
    print("1_width:", width)
    print("1_height:", height)
    print('1_num_frame:', num1)

    fps = video_caputre2.get(cv2.CAP_PROP_FPS)
    width = video_caputre2.get(cv2.CAP_PROP_FRAME_WIDTH)
    height = video_caputre2.get(cv2.CAP_PROP_FRAME_HEIGHT)
    num2 = video_caputre2.get(cv2.CAP_PROP_FRAME_COUNT)

    print("2_fps:", fps)
    print("2_width:", width)
    print("2_height:", height)
    print('2_num_frame:', num2)

    if num1 != num2:
        print('Frame1 != Frame2!!!')
        return

    # 定义截取尺寸,后面定义的每帧的h和w要于此一致，否则视频无法播放
    concate_width = int(width * 2)
    concate_height = int(height)
    size = (concate_width, concate_height)

    fourcc = cv2.VideoWriter_fourcc('M', 'J', 'P', 'G')
    # 创建视频写入对象
    videp_write = cv2.VideoWriter(output_video, fourcc, fps, size)

    print('Start!!!')
    # 读取视频帧
    success1, frame_src1 = video_caputre1.read()  # (960, 2560, 3)  # (height, width, channel)
    success2, frame_src2 = video_caputre2.read()
    while success1 and not cv2.waitKey(1) == 27:  # 读完退出或者按下 esc 退出

        frame_target = np.concatenate((frame_src1, frame_src2), axis=1)  # axis改变拼接方式，0为竖向拼接，1为横向拼接

        # [width, height] 要与上面定义的size参数一致，注意参数的位置
        # 写入视频文件
        videp_write.write(frame_target)
        # 不断读取
        success1, frame_src1 = video_caputre1.read()
        success2, frame_src2 = video_caputre2.read()

    print("Finished!!!")
    video_caputre1.release()
    video_caputre2.release()

if __name__ == '__main__':
    left_file = '/root/Source/SL_projects/left_frank/left.mp4'
    right_file = '/root/Source/SL_projects/right_frank/right.mp4'
    output_file = '/root/Source/SL_projects/frank_concate.avi'
    concatenate_video(input_video1=left_file, input_video2=right_file, output_video=output_file)
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