python opencv format not supported

Question

import cv2
image_counter = 0
video = cv2.VideoCapture(0)
while True:
    check, frame = video.read()
    gray_f = cv2.flip(frame, 1)
    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
    gray_flip = cv2.flip(frame, 1)
    cv2.imshow("kara", gray_flip)
    key = cv2.waitKey(1)

    if key == ord('q'):
        break
video.release()
cv2.destroyAllWindows()

I have written this code for using my camera using OpenCV python 3 it worked earlier but after I upgraded my python it gives following error:-

[ WARN:0] global C:\Users\appveyor\AppData\Local\Temp\1\pip-req-build-j8nxabm_\opencv\modules\videoio\src\cap_msmf.cpp (682) CvCapture_MSMF::initStream Failed to set mediaType (stream 0, (640x480 @ 30) MFVideoFormat_RGB24(unsupported media type)

Python version:3.8.5 x64
OpenCV version: 4.4.0.42

ı'm using the same opencv-python==4.4.0.42, but I don't have any issue. Try reinstall opencv-python==4.4.0.42. — Ahmet
– Ahmet, Commented Aug 20, 2020 at 12:58

Adrian Mole · Accepted Answer · 2020-10-13 14:31:19Z

18

The following code resolved this issue for me:

video = cv2.VideoCapture(0,cv2.CAP_DSHOW)

edited Oct 13, 2020 at 14:31

Adrian Mole

52.1k193 gold badges61 silver badges101 bronze badges

answered Oct 13, 2020 at 14:03

Basant Rawat

2011 silver badge3 bronze badges

Sign up to request clarification or add additional context in comments.

4 Comments

doubleOrt Over a year ago

I think I also had to disable and then enable the webcam from Device Manager (otherwise I would get only a black image. No there wasn't a fly on my webcam), but I am not sure.

Michael Marton Over a year ago

Had the same issue under Java + opencv 4.51. Adding the "CAP_DSHOW" argument fixed it: grabber = new VideoCapture(cameraIdx, Videoio.CAP_DSHOW);

Spectric Over a year ago

An absolute lifesaver!

lakeweb Over a year ago

Thanks! In c++ it is: VideoCapture capture(0, CAP_DSHOW);

Kokul Jose · Accepted Answer · 2020-08-20 12:46:52Z

1

It's a reported issue, See the details: https://github.com/opencv/opencv/issues/16711

answered Aug 20, 2020 at 12:46

Kokul Jose

1,7822 gold badges18 silver badges28 bronze badges

Comments

Roberto Carlos Tapía de Léon · Accepted Answer · 2021-01-09 19:08:28Z

1

i had this problem with java and Open Cv the problem is because the format of the video file (video.mp4) has sound and this is the reason why appear the trouble "MFVideoFormat_RGB32(unsupported media type)" the solution i found was use ffmpeg, I remove the audio of the video file with the next comand in cmd:

ffmpeg -i video.mp4 -an -c copy no_sound.mp4

Then I use the no_sound.mp4 in the next code:

VideoCapture cap =  new VideoCapture();
cap.open("no_sound.mp4");

This worked for me.

answered Jan 9, 2021 at 19:08

Roberto Carlos Tapía de Léon

1011 silver badge2 bronze badges

Collectives™ on Stack Overflow

python opencv format not supported

3 Answers 3

4 Comments

Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

3 Answers 3

4 Comments

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related