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This should allow to balance the GPU load across multiple nVidia graphics cards.
This patch introduces a new command line argument that allows the user
to set the nVidia card affinity.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Re-license almost all the playback modules to LGPLv2.1+ with
authorization from their respective contributors (230+)

This includes:
 - access, codec, packetizers, demux
 - audio filters, audio mixers, audio output
 - video filters, video chroma, video output
 - text renderers
 - XML parser
 - ARM NEON and SSE2 optimisations (mostly for chromas and filters)

Some modules are not concerned:
 - BDA and DShow access modules because Manol Manolov is AWOL
 - Real RTSP, because it is derived from Xine
 - x264 and t140 because they are encoders only
 - DLL Loader, because it is derived from MPlayer
 - DTS packetizer, because Jon Lech Johansen is AWOL
 - Shine and WMAfixed, because they are derived from Rockbox
 - Real demuxer, as it is derived from MPlayer and Wang Bo is AWOL
 - MPC demuxer, as Yavor Doganov is AWOL
 - Tivo demuxer, because it is derived from an MPlayer fork
 - Playlist demuxer, (WPL and ZPL parts missing), because suheaven is AWOL
 - iOS audio output and video display, because author refuses the license change
 - Equalizer and compressor, because Ronald Wright is AWOL
 - Mono, Headphone and Dolby, because author refuses the license change
 - hqdn3d and yadif, because they are from MPlayer/libavfilter
 - remoteosd, because it derives from RealVNC code
 - MMX optimisations, because Ollie Lho, from SiS, is AWOL
 - Rotate, because it depends on GPL motion

Nota Bene:
 - Some modules depend on GPL-only libraries, a LGPL module does not mean
   that the resulting binary module will be LGPL.
   Libraries affected would include liba52, libdvdcss, libdvdnav, libdvdread,
   faad2, libdca, libmad, libmpeg2, libpostproc, SRC, sid, zvbi and probably others.

It avoid tearing depending on the default settings.

Not yet used.

It is not yet used.

The parameter is not yet used.

This is purely a syntactical change to share the opengl.c code.
This commit does not actually make use of the vlc_gl_Create().

This tries to prioritize stuff a little better and more uniformly:

 - less than  20: console (text)
 - less than  50: plain frame buffers
 - less than 100: no embedded windowing
 - less than 150: SW scaling
 - less than 200: SW chroma conversion
 - rest: good stuff :-)

This removes multiple plugins with identical priorities. On Windows,
native outputs are now priorized over XCB (as there now is a Win32 port
of XCB). The ordering amongst native Windows outputs is preserved.
On X11, GLX is put ahead of plain as it supports scaling. SDL and
DirectFB are demoted as they cannot be embedded.

Old order:

 - XCB XVideo
 - Windows Direct3D (Vista+)
 - Windows DirectX
 - XCB X11
 - Windows Direct3D (XP-)
 - Windows Direct2D
 - DirectFB, SDL
 - XCB GLX
 - Linux FB
 - Windows GL - Windows GAPI
 - Colored ASCII Art
 - ASCII Art - Windows GDI

New order:

 - Windows Direct3D (Vista+)
 - Windows DirectX
 - Windows Direct3D (XP-)
 - XCB XVideo

 - Windows Direct2D
 - Windows GL
 - XCB GLX

 - Windows GAPI
 - Windows GDI
 - XCB X11

 - SDL
 - DirectFB
 - Linux FB

 - Colored ASCII Art
 - ASCII Art

You have to set the list of chromas the module support in
vout_display_t::info.subpicture_chromas and then handle the subpicture_t
parameters in vout_display_t::prepare/display.

CommonDisplay() must be called at least once to ensure that the window
content is shown.

As a side effect, window class names are now uniques (process wide)
allowing to unregister them and so to unload properly the msw vouts.

In several cases, it is not used because of atexit().

It is more symetric with StopEventThread.

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

Signed-off-by: Rémi Denis-Courmont <rdenis@simphalempin.com>