Qt: try to make the advanced open dialog more usable for files (who the H... uses files nowadays ;) )

It creates broken pictures and should be investigated.

Thanks Sbastien Escudier for noticing it.

Signed-off-by: Christophe Mutricy <xtophe@videolan.org>

Signed-off-by: Christophe Mutricy <xtophe@videolan.org>

It was a request of Frederik Kriewitz.

It was a request of Frederik Kriewitz.

value >= 0 to value >= minimum && value <= maximum
Signed-off-by: Brian Johnson <brijohn@gmail.com>
Signed-off-by: Laurent Aimar <fenrir@videolan.org>

Thanks xxcv for noticing it.

It should fix #1929.
Thanks for Aurélien Nephtali investigation.

My mkvmerge version seems to generate broken files.

 * use /dev/fb0 as default (like suggested in the help string)
 * fix a typo (intf_sys_t != intf_thread_t)
 * cleanings.

Signed-off-by: Rémi Duraffort <ivoire@videolan.org>