Sometimes when recording videos, file size is 0kb (windows 10).

[fzp-1120]

use subprocess by python, loop recording video with a 5-second interval in between，but some file size is 0kb. Has anyone meet this problem before？

file format: mkv

command：
start_record_command = f"scrcpy -s {device_id} --record={filepath} --record-format=mkv --time-limit={time_limit} --no-playback --no-window"

version: scrcpy 3.1

[rom1v]

If you do the same manually (not calling from pyrhon), does it work?

You must not kill the process, scrcpy must terminate gracefully.

[fzp-1120]

If you do the same manually (not calling from pyrhon), does it work?

You must not kill the process, scrcpy must terminate gracefully.

I used --time-limited, and process automatically ends，but video file size is 0kb. I found it works normally when removing --no-window. but I don't want to see the window, how can I to kill the process?

[rom1v]

Questions:

• do you have a log INFO: Recording complete to mkv file: …?
• if you record to mp4 (not mkv) with scrcpy --record=file.mp4 --time-limit=30 (with a duration long enough so that the file is not empty), is the resulting file corrupted?

I used --time-limited, and process automatically ends，but video file size is 0kb. I found it works normally when removing --no-window. but I don't want to see the window, how can I to kill the process?

Even without starting it from python?

From a console, if I run:

scrcpy --record=file.mp4 --time-limit=1 --no-playback --no-window

The resulting file is not empty.

[rom1v]

This also works correctly for me (the resulting file is not empty):

#!/usr/bin/env python3

import subprocess

subprocess.run(["scrcpy", "--record=file.mp4", "--time-limit=1", "--no-playback", "--no-window"])

[fzp-1120]

no such information：INFO: Recording complete to mkv file，but this command works，thanks！This problem might be subprocess.