xdg-screensaver has higher priority, so xscreensaver was never used.

When the service is absent, the error message is NULL anyhow.

Move logic to Modules.am
Use CXXFLAGS

Close #6640

Close #6556

This should work-around distorsion due to excessively short latency
computation in PulseAudio, e.g. NVIDIA HDMI Audio.

In the longer term, VLC should probably set minreq to 40ms and tlength
to a larger value or even -1. But that would require more testing.

Close #7543

This does not actually seek to the right position yet
Ref #6895

It could still be better. If the disconnection is unrecoverable,
I suspect a flood of identical errors will be emitted continuously
as the core keeps pushing audio buffers.

Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

The MTA is fully taken care of by mmdevice.c.

vout_display_opengl_Delete will call OpenglLock, so it is a bad idea to previously release sys->glView

Close #7292

MSDN mostly fails to explain COM requirements and totally fails to
explain thread-safety requirements. This patch takes the most
pessimistic approach.

Signed-off-by: Rafaël Carré <funman@videolan.org>

VLC_GENERIC was particularly bad for RISC processors.

Actual support for changing device requires (yet another) addition to
the audio_output_t callbacks set, I think.

Apparently, there is no need for COM to do that.