[Bug 754678] controller: the cubic interpolation we have implemented can overshoot min/max of the control-point values

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=754678

--- Comment #8 from Stefan Sauer (gstreamer, gtkdoc dev) <ensonic at sonicpulse.de> ---
Meh, this breaks the libs/libsabi test since I added another double in the
union in GstControlPoint. Unfortunately this stuct does not even have padding.

This struct should not have been in a public header in the first place :/ It is
not used on any public functions as a parameter.

So what can we do?

a) I privately clone GstControlPoint once more and add a bunch of TODOs
b) I prep a patch that move GstControlPoint to a private header now and remove
it from the abi checks.

b) would be an API+ABI break, if there is actually someone peeking into this
structure. Any opinions?

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