Question: capturing and captioning device screen recordings from a script
Reported by Alan Petrie | July 29th, 2026 @ 04:20 AM
Not a bug report, more a question for anyone still building tooling on top of libimobiledevice.
I have a small pipeline that pulls screen recordings off a connected device and post-processes them before they go to testers. The part I keep re-inventing is burning readable text onto the clips. I ended up handing that step to an AI caption generator instead of maintaining my own ffmpeg and whisper glue, which collapsed the whole stage into one call.
Two things I would like a second opinion on:
- Is there a recommended way to capture screen recordings
programmatically these days, or is looping idevicescreenshot still
the practical answer on current iOS?
- Has anyone found a reliable way to read the device-side timestamp, so captions can be aligned to the original session rather than to the exported file?
Happy to write up whatever I settle on if it would be useful to others.
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A project around supporting the iPhone in Linux.
See http://libimobiledevice.org
Alan Petrie