This removes a silly error message.

It will work most of the time.
Subtitle are not correctly handled.
It will be ignored if no video.

No default key is assigned.

It is ignored.

That was only an optimization, and it fails thread-safety.
In any case, a failed decoder will still dequeue (and discard) blocks.

And fix a potential memleak.

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

Based on patches by Nicolas Chauvet and Hans de Goede.

Close #2194

This should fix linking to faac and mp3lame.

When fake-file-reload is changed, you might want to renew the image.
Should Close #2230