demux_playlist: read directories recursive

demux_playlist.c recognizes if the source stream points to a directory,
and adds its directory entries. Until now, only 1 level was added.
During playback, further directory entries could be resolved as
directory paths were "played".

While this worked fine, it lead to frequent user confusion, because
playlist resuming and other things didn't work as expected. So just
recursively scan everything.

I'm unsure whether it's a good fix, but at least it gets rid of the
complaints. (And probably will add others.)

0 files changed, 0 insertions, 0 deletions