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Is there any possibility that an unfinished video can be saved, like it is for an unfinished rendering?

To make an animation, Sweet Home 3D assembles JPEG images into a Quicktime video.
The JPEGImagesToVideo class does not allow to recover the part of the animation which has already been rendered.
Unfortunately, an interrupted video is not playable.

Enko

If there was an option to write out the jpegs to a folder, a user would then have the option to reconstruct the video from the jpegs and to skip over the already rendered jpegs to continue after the point of failure.

Alternatively, like some cameras, there could be a configurable limit and the renderer could start a new video file after every n-frames or n-minutes. The resulting videos could also then be manually combined.