Updated 20090507 with:
 - migrate to VLC_TS_INVALID
 - fix coding style
 - use generic handling of DEMUX_SET_TIME
 - don't add +1 to dts/pts
 - zero point hack while VLC_TS_INVALID = 0
Signed-off-by: David Flynn <davidf@rd.bbc.co.uk>
Signed-off-by: Laurent Aimar <fenrir@videolan.org>

 On such flag, the bitstream before and after it are not related at all and
so are the timestamp. In order to not confuse the core, do not output
wrong timestamps.

Also, don't reset pts interpolator at discontinuity
Signed-off-by: David Flynn <davidf@rd.bbc.co.uk>
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

timestamp will be interpolated at output of decoder instead.
Signed-off-by: David Flynn <davidf@rd.bbc.co.uk>
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

Signed-off-by: David Flynn <davidf@rd.bbc.co.uk>
Signed-off-by: Rémi Denis-Courmont <remi@remlab.net>

Signed-off-by: David Flynn <davidf@rd.bbc.co.uk>
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>

Noticed by fenrir.

Close blocker #2723

It seems that ffmpeg care about VP30 != VP31 fourcc.

Audioscrobbler: activate libre.fm capacity since last.fm is geing more and more on the dark side... :D

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

This was a bit sloppy. In some cases, we had the config fiel lock,
but that that does not protect against config_Put*(). In some cases,
the lock was only taken for strings but not float/integers.

Another VLC instance could get a corrupt configuration otherwise.

This leaves the choice for bindings to use it or not.

I wish we did the same for hotkeys and inhibit but it would break
backward libvlc API compatibility.