Possability to swap mic with headphone jack

[Artursk]

I mean option ,that allows to record directly from a mixing board.
It would give better Rec quality because smaal inbuilt mics are not giving clear sound at higer volumes.


It would be good for Pitch detector plugin too cause input signal has to be realy loud ,to make it work - connecting player directly to your guitar may fix this problem.

Does the hardware allows to do this ?

[saratoga]

No idea what player you're asking for, but no.  If theres no line in, you can't do anything about that.  A line in is a physical piece of hardware.  No amount of code can make one out of nothing. 

[NiHaoMike]

In a few cases, the chipset would be capable of using an output as an input. Check the datasheet. Most devices would not have it.