12/22/2020

Download or streaming YouTube video through cv2, python sample code


firstly, install pafy python package

> pip install pafy


if you some this related error "youtube_dl", install this. pafy works based on this package.

> pip install youtube-dl


you can check youtube-dl version:

> youtube-dl --version


if you also have some certification error, you can use --no-check-certification option
try this and test, this command will download video.

> sudo youtube-dl --no-check-certificate https://www.youtube.com/watch?v=N8A-BxTfTaY

ok then everything will be work using following code:

import pafy
from matplotlib import pyplot as plt
import cv2

url = "https://www.youtube.com/watch?v=TKbNDqcgjzw"
video = pafy.new(url, ydl_opts={'nocheckcertificate': True})
best = video.getbest(preftype="mp4")

cap = cv2.VideoCapture()
cap.open(best.url)

while(True):
# Capture frame-by-frame
ret, frame = cap.read()
# Display the resulting frame
cv2.imshow('frame',frame)
if cv2.waitKey(1) & 0xFF == ord('q'):
break

# When everything done, release the capture
cap.release()
cv2.destroyAllWindows()

Thank you.


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