FR: Add timestamp watermark to video

[Giermann]

I found your app while searching for a solution to get a timelapse video on a scheduled time.
It looks very promising, although #9 will probably not be implemented - I'll play around with the REST API and try to start/stop the recording with another app.

But: in the resulting video it is hard to identify the correct time!
I used a picture every second now and created a 30fps video, so I can calculate the time from the position in the video (2 seconds in video per minute, calculated backwards from the file creation time).
But it would be much easier to have a timestamp inside the video.

Would this be possible?
I found a few open source projects with that, but have no knowledge in Android programming...
To name only the two first search results:
https://github.com/JisunPark/Android-TimestampCamera
https://github.com/lvaccaro/OTScam

UPDATE:
The above examples only deal with images, might be helpful if time lapsing to JPEG, but does not work when recording a video. There's a discussion dealing with this, but apparently no solution yet.

[woheller69]

If someone knows how to implement that please provide a PR