Getting the current format is unreliable, for instance if the audio
cable is plugged in while playback is running. Thus only the
first original format is trusted.

close #9957

This prevents waiting for the timeout in some situations, especially
if the format was already set to the new value before.

Indeed this can happen rarely.

close #9469

This would result in an unpleasant black or grey area for
a short time, for instance when selecting the media library.

Some OS/2 APIs are not high-memory safe. So there are needs to use wrapper
functions to make them high-memory safe.
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

--stats was added at commit c24ea5fb.
So free arguments after this.
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

fixes #9919

av_set_cpu_flags_mask() is not thread-safe. So are the first call to
av_get_cpu_flags() after loading libavutil, and the first call to
av_get_cpu_flags() after a call to av_set_cpu_flags_mask(). So call
those under the avcodec lock during initialization.

When converting 1920x1080p mp4 using x264, x264 complains that it failed
to allocate memory. This flags makes it happy.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

Files are not added, and a first instance is blocked.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

```--
  CC       addons/fsstorage.lo
addons/fsstorage.c: In function 'WriteCatalog':
addons/fsstorage.c:543:5: error: implicit declaration of function 'getpid' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make.exe[5]: *** [addons/fsstorage.lo] Error 1
```

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

config.h includes vlc_fixup.h that can include stdint.h

The code reads the user-defined settings and adapts channel reordering accordingly,
not the other way around.

fixes #10125, should also close #10199

changes use of null uri

vout_macosx: remove misleading user-facing error message about Quartz Extreme being unavailable (close #9777)

While it is strongly desirable to be present, the API behavior or the driver quality seem to have changed on OS X 10.9, so this alert is triggered way to often while video is actually being displayed just fine.

Log message is retained for debugging purposes.

allows UI updates while downloading

forwardport of 3bde20b52de75861c3c200e4d55b93dad1d6a6b1 from vlc-2.1.git.