AutoDJ sometimes ignores transition time

[Lukas Graf]

When in AutoDJ mode, the custom transition time set via the spinner widget sometimes gets completely ignored. This applies to AutoDJ fading by itself at the end of a track as well as a manually triggered fade through the "Fade now" button.

For example: I set the transition time to 20s by adjusting the spinner, and click "Fade now". A cross fade happens, but with a very short transition time of 3s.

Unfortunately I can't provide exact instructions on how to reproduce this bug. It seems to happen randomly. About 4 out of 5 times the transition time gets respected, but 1 out of 5 it gets completely ignored. It doesn't always happen with the same tracks, and as said before, it affects both the "Fade now" function as well as the automatic fade triggered at the end of a track.

I tried different combinations of leaving the AutoDJ Panel, activating / deactivating AutoDJ, changing the transition time spinner, and using "Fade now" vs. auto fade - there doesn't seem to be a series of steps that definitely triggers the bug or definitely avoids it.

The simplest case I experienced it was when I loaded 10 tracks into AutoDJ, set the transition time and used "Fade now" repeatedly to manually trigger cross fades. Even then, without clicking *anything* else in the UI except "Fade now", the transition time sometimes got ignored, and sometimes got respected.

OS: Mac OS X 10.7.5
Mixxx Version: 1.11.0 (build r3864)

[Max Linke (max-linke)]

How long are the tracks you are using? We adjust the transition time if a track is shorter then the transition time.

[Lukas Graf (lukasgraf)]

They are 2 to 3 minutes each, none shorter than 60s.

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/7252