This removes support for non converted "video output" and "video filter"
modules.

It only works for vout display modules.

Pitch of input and output pictures can be differents...
BP.

gethostbyname() is not thread-safe.

This patch is not used in Windows. getaddrinfo() requires XP, and
gethostbyname is thread-safe with Winsock.

inet_ntoa() is not thread-safe (except with Winsock)

Use readdir_r() instead of readdir().

First I ever need to use the auto keyword...

Packagers shall be responsible for fixing FluidSynth thread-safety
issues if they choose to use this old buggy version.

(Note that we have no demux capable of generating this. This one message
 cannot be found in Standard MIDI File.)

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

This removes outdated code.
It isn't nice to FFmpeg programmers to allow people to keep such old versions of lavc
52.2.0 allows the Audio Channel Layout to be defined.

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

This just changes the package that is downloaded and extracted
in extras/contrib for Mac OS.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

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

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

This completes 24ae7ed5. Even if the
timer is removed from the schedule, there is no warranty that it's not
pending execution, or waiting on our mutex, at the very moment.
So there is a small window of opportunity for the assertion to fail.

This removes the assertion in favor of a safer if(likely()).

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

Close #3534

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

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

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