This broke depending on the locale (LC_COLLATE).
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

It is easy to see that the computation of the alpha constant is slightly
inefficient, as the root value can be close to 1 for the lower frequencies,
which would result in significant roundoff error if this value is subtracted
from 1.  In this patch, the computation of the alpha, beta, and gamma constants
has been simplified and refactored.
Acked-by: Ilkka Ollakka <ileoo@videolan.org>
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Needs mooar testing

audiounit: run an AudioSession when outputting media content, so the user is able to listen to the audio when the silent switch is on

partially derived from the Mac vout code

This reverts commit d49e2ef6.

Many skins are buggy because the bitmap sizes or the resize policy
are inconsistent with button or checkbox constraints (fixed size)

This patch will help skin developers pinpoint which button or
checkbox is at fault. In addition, the resize policy will be
corrected (guessed from the lefttop parameter). This will enable
buggy and often unmaintained skins to work fine nevertheless.

partial revert of 9929cc94
Until we find a better solution. As discussed on ML.

This reverts commit 6265048a.

no functional changes

close #8307

Be more stringent on what it means to be tightly-coupled for two layouts.

Note that directly resizing a playout should not be allowed. Only the skins2
windows manager should be authorized to do it, since other issues are at stake
(anchors, min/max constraints, ....). Yet, this new isTightlyCoupledWith() now
ensures that two layouts are truly identical from the windows manager's
perspective, and thus avoids possible and undesirable side effects.