I've been trying to record a video using mss. As it claims, you can record a video at about more than 30, even 60 fps in some cases. However, i am finding it difficult to implement in practical.
I am using one of your examples from the documentation. I've extended it a bit to write a video on disk instead of showing it in a window using imshow method. Hope it explains the issue with mss.
So, this is my code:
import numpy as np
import cv2
from win32api import GetSystemMetrics
from mss.windows import MSS as mss
smonitor = {"top": 0, "left": 0, "width": GetSystemMetrics(0), "height": GetSystemMetrics(1)}
codec = cv2.VideoWriter_fourcc(*"vp80")
vwriter = cv2.VideoWriter("file.webm", codec, 30.0, (GetSystemMetrics(0), GetSystemMetrics(1)))
with mss() as sct:
try:
while True:
img = np.array(sct.grab(smonitor))
vwriter.write(img)
except KeyboardInterrupt:
vwriter.release()
It does record the video. But as a matter of fact, this video won't be playable. It's a corrupted file. Now, apparently i need to run this line: cv2.cvtColor(frame, cv2.COLOR_BGR2RGB) to actually record the video. So, the code would become:
with mss() as sct:
try:
while True:
img = cv2.cvtColor(np.array(sct.grab(smonitor)), cv2.COLOR_BGR2RGB)
vwriter.write(img)
except KeyboardInterrupt:
vwriter.release()
This time it works, but the max frames per second would be like 4 or at max it would be 5. So, we are back to the orignal issue. So, my question in simple is, how to use mss for recording a video?
OS name: Windows
OS version: 10
OS architecture: x64
Python version: 3.9
MSS version: 6.1.0
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I've been trying to record a video using mss. As it claims, you can record a video at about more than 30, even 60 fps in some cases. However, i am finding it difficult to implement in practical.
I am using one of your examples from the documentation. I've extended it a bit to write a video on disk instead of showing it in a window using
imshow
method. Hope it explains the issue with mss.So, this is my code:
It does record the video. But as a matter of fact, this video won't be playable. It's a corrupted file. Now, apparently i need to run this line:
cv2.cvtColor(frame, cv2.COLOR_BGR2RGB)
to actually record the video. So, the code would become:This time it works, but the max frames per second would be like 4 or at max it would be 5. So, we are back to the orignal issue. So, my question in simple is, how to use mss for recording a video?
Upvote & Fund