How can I put text on video using opencv in python?

Question

How can I put text on video using opencv in python?

Answer 1

cv2.putText(frame,text,location,font,font size,font color, font weight, line)

Answer 2

Jason Edelson and how can I save it?

Answer 3

cv2.VideoWriter(filename, fourcc, fps, frameSize)

Example-
out = cv2.VideoWriter('output.avi', -1, 20.0, (1920,1080))

out.write(frame)

make sure you write the frame after editing it not before

remember to release after your done writing
out.release()

Answer 4

Jason Edelson thanks a lot😉
my last question is why my output video has no sound?
how can I solve it?

Answer 5

opencv doesn't support audio,
you'll have to use a separate library like ffpyplayer

from ffpyplayer.player import MediaPlayer

player= MediaPlayer(video path)

audioframe, val = player.get_frame()

Answer 6

Jason Edelson Do you know any library wich support video and audio and put text on that?

Answer 7

Not that I know of, if you find one let me know

Answer 8

Jason Edelson ok
yYou helped me a lot😉
Thanks😉☺

Answer 9

Jason Edelson I find a way.
converting text to image using PIL then put it on video using moviepy.
it is too slow😔
Do you have an idea for speed up?