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python - OpenCV - 在 Python 中保存后视频不播放

问题描述

我尝试在 Python 上将分辨率更改为 300x300 后保存视频，但我的视频在保存后无法播放

0xc10100be error: "This file isn't playable. That might be because the file type is unsupported, the file extension is incorrect, or the file is corrupt."

这是我的程序：

import numpy as np
import cv2

cap = cv2.VideoCapture("F:\\mi\\Camera\\2b7d9eccaddffffe3c9ba70b7fe6c12e(0).mp4")
cv2.namedWindow("vid1", 0)
cv2.resizeWindow("vid1", 300,300)

fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter('output.avi', fourcc, 20.0, (300,300))

while(cap.isOpened()):
    ret, frame = cap.read()
    cv2.imshow('vid1',frame)
    out.write(frame)                            
    if cv2.waitKey(25) & 0xFF == ord('q'):
        break

cap.release()
out.release()
cv2.destroyAllWindows()

怎么了？

标签： pythonopencv

解决方案

在向我的老师询问这个问题后，他修复了我的程序：

import numpy as np
import cv2

cap = cv2.VideoCapture("F:\\mi\\Camera\\2b7d9eccaddffffe3c9ba70b7fe6c12e(0).mp4")
cv2.namedWindow('frame',0)
cv2.resizeWindow('frame',300,300)
fourcc = cv2.VideoWriter_fourcc(*'XVID')
out = cv2.VideoWriter('output.avi', fourcc, 20.0, (300,300))

while(cap.isOpened()):
    ret, frame = cap.read()
    if ret:
        vidout=cv2.resize(frame,(300,300)) #create vidout funct. with res=300x300
        out.write(vidout) #write frames of vidout function
        cv2.imshow('frame',frame)
        if cv2.waitKey(1) & 0xFF == ord('q'):
            break
    else:
        break
cap.release()
out.release()
cv2.destroyAllWindows()

感谢您对我的问题的关注！

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