The current code seems to require _all_ metadata fields to be populated
which seems a bit unreasonable.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This brings some useless overhead for native UTF-8 systems.
Linux packagers may want to define ASSUME_UTF8 to avoid this problem.

Also, this assumes that iconv_open() recognizes "" as the current
character set (POSIX says nothing about valid iconv_open() parameters).

This is a little bit more understandable than device numbers.
Unfortunately, hot plug is as flaky as before: udev reports the device
before it is ready. alsa-lib provides no event interface (that I know),
so we have to stick with udev for now though.

Also, alsa-lib is _not_ used to fetch the card name. In my opinion, the
udev vendor string is a lot better. Compare:
- "USB Device 0xccd:0x77" (alsa card name) with
  "TerraTec Electronic GmbH" (udev vendor), or
- "Intel ICH6" (alsa card name) with "Intel Corporation" (udev vendor).

Move googleimage search first, and enable it again but don't use eg filename in search query.
Move musicbrainz after last.fm, and don't try more than one way to find art, also do query once in 2 sec

If you get bad hits from googleimage album-art, please report them to me.

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

... use them as names of our variables
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

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

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

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

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

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

At least with X11, the mouse may move without changing coordinates.
We need to re-arm the cursor hide timeout since the cursor was shown.

Close #3893

1.6.0 does not support cover arts but the later version does support it.
Signed-off-by: Rémi Duraffort <ivoire@videolan.org>

Don't ask me why, but libaa depends on Xlib.