It closes #3620.

Untested

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

I assume that chromas don't change while running on same filter.

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

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

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

Signed-off-by: Pierre d'Herbemont <pdherbemont@free.fr>

Access plugins are now responsible for selecting the correct
media location, either the URL-without-scheme form or the local file
path form. This will help solve weird bugs with the current file://
URL decode hack, e.g. it does not work for directory://.

Lets see if we also need this for access_demux plugins (normally,
they don't use files).

This plugin does not use its MRL at all (?!).

It also fixes es_format_IsSimilar.