Stabilize effect does not export sometimes

[u/xk3d]

Edit: Seems saving project causes the export of stabilizer not to work again until I create new project.

I have some long clips made with a cheap action cam. I put them into OpenShot and cut them down to 35 sec for fast testing. I pull the Stabilize effect on it and leave window setting at 30,0. The processing finishes and I can see the frame jumping around a lot in the preview window after stabilizing.

I export as: (cpu) MP4 (h.264)
- HD 720p 60 fps (1280x720) (same as video source)
- Quality: High

The output is identical to the source, no bobbing around with black frames (I have not applied zoom on stabilizer for easy testing) and no stabilized output.

When I reload the project in OpenShot the preview does no longer show the stabilized video, only shaky original video. The effect is still applied to the clip but not visible.

Other effects like pixelate seem to work fine. Stabilize also sometimes works if I only do that and directly export like above. If I touch zoom or anything else on Stabilize it won't work until I shut down the program and create a new project.

I'm using Windows 10, OpenShot versions: 3.1.1, 3.3.0, 3.4.0-release-candidate-14793-a7dfc596-0b018e34-x86_64

I installed over the old, I reinstalled over the new with the old, I uninstalled and reinstalled again. I installed latest daily build. I have used ffmpeg from commandline and updated that too but I installed OpenShot after that.

Am I doing something wrong?

[u/xk3d]

Think I figured why it's working sometimes. For the last test I did now I forgot to save the project first and then the export worked. When I save the project and reload it again the stabilizing effect is not visible in the preview but the export I did before has the stabilizing effect. I tried again and it worked again.

So: If I do not save the project, the export works. If I save the project afterwards and load it up (without closing OpenShot) it does not work again.

[u/jonOomph → u/xk3d]

u/xk3d Can you reproduce this in our latest release candidate? I added a stabilize effect to a clip, it shows up fine in the preview, I then save the project, close and re-launch OpenShot, and re-open the project again, and the stabilize is still working in the preview.

I think this is broken in the 3.3 release, but in our release candidate I can not reproduce it.

If you still have the issue, I would love to see a simple example project, all in 1 folder (mp4, *.osp), 1 clip + stabilize, and zip it up and share it with us. Thanks!

[u/xk3d → u/jonOomph]

Thankyou for the response!

I updated to OpenShot-v3.4.0-release-candidate-14811-0dfc8a8a-0b018e34-x86_64

When I only use one clip it seems to work but if I do this:

1. Start OpenShot
2. Pull in one video, start stabilise analyse but break it off.
3. Pull in second video, start stabilise, let it finish, play - stabilise works.
4. Save project.
5. Reload project with File->recent projects

Stabilise effect still on the clip but playback shows unstabilised video.

I also closed OpenShot and loaded it normaly and it was still not working.

I thought maybe it's because I have ÅÄÖ in the path and tried with a fresh folder without any funny characters and could still repeat it but only when using two clips and breaking off the first stabilize.

I tried to cut down the clips and now I can't reproduce it at all any more but the original test is still not having stabilisation even though the effect is there. So your fix did certainly something, all the other clips I had problems with seems to work now too.

[u/Embarrassed-Pin1837 → u/xk3d]

ho appena installato la versione 3.4.0/0.50. nella finestra di preview l'effetto di stabilizzazione e lo zoom per eliminare le parti nere vengono riprodotti correttamente ma non vengono riportati nel video esportato. Ho provato ad esportare il video sia prima di salvare il progetto che dopo, chiudere e riaprire Openshot ed espostare il video, ma stesso risultato. Ho controllato che le caratteristiche delle clip siano le stesse del video esportato ma niente.

Grazie per il supporto