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Possible to save frames from videos with a high FPS?

See original GitHub issue
from time import time
import mss

start = time()
count = 1

while True:
	with mss.mss() as sct:
	    # The screen part to capture
	    monitor = {'top': 144, 'left': 80, 'width': 1397, 'height': 782}
	    output = 'frames/sct-{}.png'.format(count)
	    count += 1
	    # Grab the data
	    sct_img = sct.grab(monitor)

	    # Save to the picture file, sct_img.size, output)
	    # print(output)
	    now = time()
	    if (now - start) % 60 >= 10: break

This seems to save only around 100 frames for 10 seconds. Can this be improved?

Issue Analytics

  • State:closed
  • Created 6 years ago
  • Comments:11 (9 by maintainers)

github_iconTop GitHub Comments

eruffaldicommented, Mar 15, 2018

I have reached 37 FPS on macOS by two changes:

  • introduce a Grabber object with specified monitor size that allocates OS resources once. Edited for both and windows – Under OSX this is not providing enough advantage (1us) so not worth probably, but it is in my branch
  • use BGRA encoding because RGB one in class Snapshot perform for loop over points. BGRA is not fully supported by pillow but then it can be loaded in pillow and converted to RGB using pillow function. Other uses as numpy or OpenCV are fine

Pull Request in preparation

BoboTiGcommented, Jan 19, 2018

OK, added the option in the “impvements” branch.

Read more comments on GitHub >

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