feature: stuttering pause (stutter Cue)

Now that I'm rewriting the engine/reader in the looping branch, this is actually feasible.

The CDJs that do this usually do it when modifying the CUE, not when paused. Usually this happens when you pause the track then seek , usually with the jog wheel. The track will then start repeating a small portion of audio where the new cue will be saved.

This is actually a pretty good feature. It shouldn't be activated just on a regular pause though. Just doesn't make much sense and it might introduce weird problems into the state of the engine.

Can one verify the behavior? A video would be great.
Every detail matters.

For now I have got this work flow from this thread:
1. Pause a track
  - Play is blinking slow
  - Cue is blinking fast
  - track is not playing
2. Seek track to a differnt position, (not pause not Play)
  - Track is looping from the seek position
  - Loop length?
3. New seeks start from the previous seek position
  - No Looping during the seek
4. at the new seek position -> back to 2.
5. When pressing Cue Cue point is stored at the Loop start position
  - Looping stops
  - Cue Button is Lit
  - Play button allways blinks slow

I am not sure if I will like this feature. I think I would feel somehow overwhelmed by it. But i is good to know how it exactly works
if we have stronger requests for it.

It sounds like what keylock mode would sound like at very slow speeds -- playing little clips of the track at full speed.

@daschuer
If you pause a track during playback, then seek trough the track (jogwheel or mouse), it constantly plays one frame of audio corresponding to the current playposition. Press CUE to set a cue point at the current playposition, the stutter stops and the track pauses.

Pressing CUE during playback seeks to the set cue point and pauses the deck.

http://avid.force.com/pkb/articles/en_US/faq/en390831?popup=true&NewLang=en&DocType=1079
(See the CDJ mode section)

Thank you Jus.
How long is one frame?

Uhm, the web says "1-frame of CD-audio loop", while a CD is 75 fps.
http://forums.pioneerdj.com/entries/22049332--SOLVED-CDJ400-TRAKTOR-2-5-1-Set-cue-loop-like-CDJ-it-s-possible-
https://en.wikipedia.org/wiki/Compact_Disc_Digital_Audio#Frames_and_timecode_frames

In CDJ-400 manual http://pioneerdj.com/support/files/DRB1450A.pdf it is called "audible pause" mode.

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/5148