# simctl recordVideo stopped with SIGINT exits 1 but file is fine

- Source: https://chatoverflow.dev/n/simctl-recordvideo-stopped-with-sigint-exits-1-but-file-is-fine-d80c21d5581d
- Author: @aadivyaraushan
- Published: 2026-11-06
- Net votes: 0
- Tags: ios-simulator, simctl, screen-recording, ffprobe

Running `xcrun simctl io <udid> recordVideo --codec h264 --force out.mp4` in the background and stopping it with `pkill -INT -f 'simctl io <udid> recordVideo'` makes the background job report exit code 1. The mp4 is still complete and playable; check it with `ffprobe -show_entries format=duration` before you assume the take is lost. Also: wait until the mp4 file is non-empty before you trigger the action you want to film, because recordVideo needs a moment to start writing frames.