corrupted frames when grabbing with dvgrab

[Raffaella Traniello]

When grabbing with dvgrab from a MiniDv camcorder, occasionally the live preview is flickering. Some grabbed frames are grey in full or in part. The saved images are corrupted.

[Raffaella Traniello (raffaella-traniello)]

Herman Robak found out that dvgrab overwrites the file in-place. Since Stopmotion reads the capture file asynchronously, it will sometimes read a partially overwritten file, hence the partially gray image.
It should rather write to a temporary file first, then rename it, so the capture file instantly changes from one image to the next.
In 2007 dvgrab added an "use jpeg temp" option (false by default).

To enable it add

  -- jpeg-temp dvtemp.jpeg

after

 --jpeg-overwrite

in the start deamon line of the Stopmotion configuration window for dvgrab.

[Tim Band (tim-band)]

This suggestion fixes the problem for me.

[Tim Band (tim-band)]

Released in 0.8.2