This simplifies a bit the code, should solve the issue reported over and over by the users.

That way, when you right-click on the not-selected item, you can delete it.

stop the playlist just after removing the playing item (so that's ok to stop
the PL even when it's empty).

(cherry picked from commit be1f4305f1203ccf5acc402fd2cc80dde3f5b1cd)
Signed-off-by: Rémi Duraffort <ivoire@videolan.org>

 It seems that (a lot of?) flv files does not correctly set PTS,
so ignore them, with luck the decoder (avcodec) will recreate
them.
 It might break some valid files, so report any regression.

(It needs the AVCodecContext::ticks_per_frame change).

It fixes a regression with interpolated timestamps for some
mpeg-I/II and for h264.

Force new not to throw. Also drop a separate declaration of a static function that's called exactly once, and mark it inline instead.

It is needed to ensure valid buffer alignment.

And don't ignore errors

You need a compiler.

Also use autoreconf where possible
And no need to reun automake after autoreconf

This reverts commit f001a156.

This is usually a good practice. Moreover compare to locking and unlocking the
potential overhead is really small.