scratching waveform backwards with a saved, active loop ahead temporarily jumps to that loop (visuals only)

[ronso0]

• create a hotcue loop
• jump back a few bars
• play
• ativate loop (catching loop)
• drag waveform forwards = visuals as expected
• drag waveform backwards = visual position jumps to loop (audio is not affected)

waveform.loopcue.mp4

Version

2.4-beta-216-g5454b94b71

OS

Ubuntu Studio 20.04 / X11 / xfce 4.14 / Qt 5.12.8

[ronso0]

I reproduced with a regular (temp, unsaved) re-loop and, while it also jumps, it did once jump while scratching forward 🤷‍♂️

[Swiftb0y]

I can also confirm your original exact issue.

[ronso0]

@JoergAtGithub Maybe a regression caused by #11840 ?

[ronso0]

Also, I did not yet test with 'real' scratching, only with the waveforms.

[Swiftb0y]

If with "real" scratching you mean via a controller or DVS then I'm pretty sure its unaffected its also equally affected. The issue with the mouse position is probably that it "pins" an unreachable position while instead we should probably only use the mouse movement and derive some relative scratching action from that. But I actually now think that that issue is unrelated to this one.

[JoergAtGithub]

I can confirm both issues, the one reported by @ronso0 is indeed a regression of #11840. The issue reported by @Swiftb0y affects also earlier commits (seen with 679e4dc the commit before merging #11840), I moved it in a dedicated issue (#12278) therefore.