Python OpenCV2 cv2.cv_fourcc 不适用于 VideoWriter
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Python OpenCV2 cv2.cv_fourcc not working with VideoWriter
提问by user2197517
As the title states, when I run the cv2.videowriter function I get 'module' object has no attribute CV_FOURCC.
正如标题所述，当我运行 cv2.videowriter 函数时，我得到“模块”对象没有属性 CV_FOURCC。
Code:
代码：
# Creates a video file from webcam stream
import cv2
Create test window
cv2.namedWindow("cam_out", cv2.CV_WINDOW_AUTOSIZE)
# Create vid cap object
vid = cv2.VideoCapture(1)
# Create video writer object
vidwrite = cv2.VideoWriter(['testvideo', cv2.CV_FOURCC('M','J','P','G'), 25,
(640,480),True])
回答by armadefuego
Change cv2.CV_FOURCC('M','J','P','G')to cv2.cv.CV_FOURCC('M','J','P','G').
更改cv2.CV_FOURCC('M','J','P','G')为cv2.cv.CV_FOURCC('M','J','P','G')。
回答by cgf
Kind of late to the party, but if anyone needs it for newer versions of opencv2, then the command is:
聚会有点晚了，但是如果有人需要它来使用较新版本的 opencv2，那么命令是：
cv2.VideoWriter_fourcc(c1, c2, c3, c4)
回答by JohnAllen
For OpenCV 3 do this:
对于 OpenCV 3，请执行以下操作：
cv2.VideoWriter_fourcc(*'MJPG')
cv2.VideoWriter_fourcc(*'MJPG')
credit @SiffgyF
信用@SiffgyF
回答by user3077861
I use this code:
我使用这个代码：
fourcc = cv2.CV_FOURCC(*'XVID')
回答by snailx
With OpenCV 3:
使用 OpenCV 3：
# Create video writer object
vidwrite = cv2.VideoWriter('testvideo.avi', cv2.VideoWriter_fourcc(*'XVID'), 25,
(640,480),True)
you can find the sample at "opencv_install_dir\sources\doc\py_tutorials\py_gui\py_video_display\py_video_display.markdown"
您可以在“opencv_install_dir\sources\doc\py_tutorials\py_gui\py_video_display\py_video_display.markdown”中找到示例
ps: I can't find any description with 'cv2.VideoWriter_fourcc(...)' in official documentation.
ps：我在官方文档中找不到任何关于 'cv2.VideoWriter_fourcc(...)' 的描述。
回答by twocrush
From experience, if on OSX, this is what worked for me when writing out to mp4 files:
根据经验，如果在 OSX 上，这就是写 mp4 文件时对我有用的方法：
fourcc = cv2.VideoWriter_fourcc(*'MP4V')
fourcc = cv2.VideoWriter_fourcc(*'MP4V')
回答by codé Facil
if you want to write to Mp4 file just use this codec it's for 2020 opencv4.2 and plus
如果您想写入 Mp4 文件，请使用此编解码器，它适用于 2020 opencv4.2 及以上
fourcc = cv2.VideoWriter_fourcc(*'X264')
video_writer = cv2.VideoWriter('outeringe.mp4', fourcc, 20, (640, 480))
use x264 instead of MP4V
使用 x264 而不是 MP4V
