🔒 How to create a video from images (frames)

[sweet roost]

title, i am trying to make a very lightweight screen recorder with python (15fps+480p) and i need a way to create a video from all the frames thanks

[opaque pilot]

@sweet roost

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[balmy wind]

i would just use the ffmpeg command line utility (not from python), but if you really need to do it with python it looks like the OpenCV library is one way to do it

[lusty current]

or use a warpper for ffmpeg 🙂

[sweet roost]

im using cv2 rn

[balmy wind]

if you are satisfied with that solution you might close this help topic
otherwise, please elaborate what you aren't content with when using cv2

[sweet roost]

i didnt get anywhere :3

[balmy wind]

oh, so you're stuck right now?
show the code you got if you require further assistance

!code if it's short

[opaque pilot]

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[sweet roost]

import datetime
from time import sleep
from PIL import ImageGrab
import keyboard
from pathlib import Path
from tkinter import Image, simpledialog as sd
import cv2

FPS = 15
ALT = "alt"
EXIT_BIND = "g"
ENTER_BIND = "x"
ENTER_NAME_BIND = "n"
NAME = "store"

parent = Path(NAME)
parent.mkdir(exist_ok=True)

def exit(path: Path): 
    for image in frames:
        image.save("")

def record_loop(new: str | None = None):
    frame = 0

    if new is None:
        new = str(datetime.datetime.today()).split("-")[1].replace(":", "-")

    while True:
        if keyboard.is_pressed("+".join([ALT, EXIT_BIND])):
            exit(parent / new)
            break

        frame += 1

        number_string = str(frame)
        number_string.zfill(5 - len(str(frame)))

        name = f"f_{number_string}"

        screenshot = ImageGrab.grab()
        screenshot.save(name)

        sleep(1 / FPS)

def main():
    while True:
        if keyboard.is_pressed(ALT):
            if keyboard.is_pressed(ENTER_BIND):
                record_loop()
            if keyboard.is_pressed(ENTER_NAME_BIND):
                s = sd.askstring("Name", "Name for this recording")
                record_loop(s)

        sleep(.1)


if __name__ == "__main__":
    main()
``` here

"short"

currently gonna insert the images into it

i think i got it

[balmy wind]

the exit() function you have defined looks a bit strange

[sweet roost]

i just finished it

https://paste.pythondiscord.com/7TUA

[balmy wind]

the new exit() function makes a lot more sense

[sweet roost]

i still fixed it more

anyway first error! :D

Traceback (most recent call last):
  File "c:\Users\Uzivatel\Desktop\Langs\Python\screen recorder.py", line 78, in <module>
    main()
  File "c:\Users\Uzivatel\Desktop\Langs\Python\screen recorder.py", line 72, in main
    record_loop(s)
  File "c:\Users\Uzivatel\Desktop\Langs\Python\screen recorder.py", line 55, in record_loop
    exit(parent / new)
  File "c:\Users\Uzivatel\Desktop\Langs\Python\screen recorder.py", line 22, in exit
    output_video = path.with_suffix("mp4").name
                   ^^^^^^^^^^^^^^^^^^^^^^^
  File "C:\Users\Uzivatel\AppData\Local\Programs\Python\Python312\Lib\pathlib.py", line 651, in with_suffix
    raise ValueError("Invalid suffix %r" % (suffix))
ValueError: Invalid suffix 'mp4'

why is this?

(im pro)

i forgor the dot

[sweet roost]

https://paste.pythondiscord.com/3I3Q @balmy wind it works, except its much shorter than its supposed to be

[balmy wind]

what do you mean it's shorter then it supposed to be?
you mean the resulting video?

[sweet roost]

yes

[sweet roost]

yeah so it works

its just super fast

confirmed

by testing it

[opaque pilot]

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