There is no reliable way to determine the channel configuration of a
certain ALSA device. The ALSA operates at too low level for that.
So add a configuration option with default to stereo (as in previous
VLC versions). However, the user will not need to re-enable 5.1 every
time.

This commit also removes all the fancy device choices. The static
choices are overriden dynamically by the UI anyway. So the only use of
the list was in vlc --help.

Do not clobber the output format channels to stereo. This would break
the VLC filtering pipeline.

For each input thread the callback for "intf-event" was registered
at least twice, and never deleted correctly.
Therefore this patch makes sure that we add the callback only once,
and also properly delete the old one when the input changed.

should close #6207, refs #6252
Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>

macosx_vout: implemented a cleaner approach to limit the window size according to the screen it is displayed on (close #5875)

Server rejects connection if some field are not set properly

The field was renamed in lavc54 and setting values changed from
enum to bitfield.
We don't need to care about this because VLC doesn't specify values.

Otherwise, it gets executed with /bin/sh which on Solaris does not support the
$(...) construct. This causes 'gmake check' to fail. For example:

../src/check_headers: $(dirname ../src/check_headers): does not exist

Calling check_headers with $(SHELL) explicitly makes use of CONFIG_SHELL.
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

Otherwise:

Undefined                       first referenced
 symbol                             in file
asprintf                            url.o
ld: fatal: Symbol referencing errors. No output written to test_url

This patch uses a mix of tabs and spaces to match the existing convention.
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

This reverts commit 93b21142.

This reverts commit e3511f67.

This reverts commit aeb250f7.

Close #6291

The same way as Wheel left/right, allow to use
those buttons for GUI shortcuts.

This reverts commit 07d38617.

macosx: hide the playlist without option click when showing the video in a separate window (refs #6213)

This is not so relevant anymore and was only a warning anyway.
(We cannot avoid the bug in LibVLC.)

Files were copied to contrib/src/src instead of contrib/src...