[Bug 753304] pulsesink: volume does not appear to be linear; violates playbin contract

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=753304

Arun Raghavan <arun at accosted.net> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |INVALID

--- Comment #9 from Arun Raghavan <arun at accosted.net> ---
This one is my bad. The cubic mapping is done under the hood while storing the
volume _but_, while applying the volume, it is undone. From an API perspective,
pa_sw_volume_from_linear() is what we provide to apply a linear multiplication
factor. So there is nothing to do here.

(this internal conversion exists because if you directly set the volume as
slider_value * PA_VOLUME_NORM instead of using the from_linear() API, PA will
apply a cubic mapping for you assuming that is what you wanted to do)

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