Fail to load video clipp in .AppImage if unsupported by HW accel

[siefkenj]

I am using OpenShot-v3.1.1-dev-daily-11909-a9e34a9b-8e9d7edc-x86_64.AppImage. When Performance > Linux VDPAU is selected, the clip fails to load with an error message sample_960x540.mp4 is not a valid video, audio, or image file.. In the console an error No Reader has been initialized for this Clip. Call Reader(*reader) before calling this method. is displayed.

Setting Performance > CPU allows the clip to load (and play).

It would be nice if when a clip that cannot be played with HW accel is encountered, openshot falls back to software rendering and continues to load the clip.

sample_960x540.mp4

[Colorjet3]

Hardware acceleration is broken across all platforms. This is a known and documented issue to be resolved in a future release. No ETA at this time.