So far only network protocols (well, only RTMP) are aliased.

This works more or less like SNDVOL (and like PulseAudio with flat
volumes not disabled): the VLC volume represents the product of the
endpoint volume by the simple volume.

cross-pkg-config tools have a correct default search path. The contrib
path should complement it, not replace it. If the caller intends to
(ab)use the native pkg-config for cross-compilation, the caller is
responsible for selecting an adequate default path, not VLC configure,
just as with every other build tools.

fixes #10125, #10199

This is superseded by a proper fix.
This reverts commit fa396d19.

This reverts commit c3bb23cd.

If Start() failed, IDirectSound_Release() was called twice.

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net> with changes

Fix a crash occurring when CreateDSBufferPCM() fails in Start() and
afterwards Stop() uses uninitialized pointer values when releasing
objects.
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

NSFullScreenWindowMask is not defined here.

Defining the category to a nonexisting class is not allowed, as well as providing
an interface for this class without implementation.

libavutil does what we do already

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

No functional change.

close #10716

Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>