# HG changeset patch
# User Edouard Gomez <ed.gomez@free.fr>
# Date 1224021633 -7200
# Node ID 9564c1736b76c96f37fb85476d36496b3d7955bb
# Parent  40d5c2186f7fb31e944b5b542b3366bbc420cc0e
dshow: prevent division by zero

In the DShow capture module, division by zero is possible in
multiple modulo statements when dealing with granularity values
returned by capture filters.

Change the code so that:
 - if granularity is zero, then width/height/samplingrate must be
   a perfect match with requested settings.
 - if granularity is non zero, then use the old condition tests.

This fixes real crashes reported by VLC users on different forums.

See:
http://forum.doom9.org/archive/index.php/t-134655.html
http://forum.videolan.org/viewtopic.php?f=2&t=37056&p=114065&hilit=blackmagic

Tested with both a Decklink HD Extreme card and a Decklink HD Pro card.
Signed-off-by: Jean-Baptiste Kempf <jb@videolan.org>

This fix e17, Xfce on my configuration.
Thanks very much Raster.

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

Take multiple-screens into account when trying to get fullscreen controller
into center of current physical screen.

Basicly same as mplayer/libvo/x11_common.c does.

Close #2196

Signed-off-by: Rémi Denis-Courmont <rdenis@simphalempin.com>

Introduction of an abstractController, that can:
- create most of the interface controller widgets
- execute their actions

All buttons connect themselve to a mapper and a doAction( id_action )
that centralize everything. The Action could go into a mainActionner, I guess. Opinions?

This cleans a lot the signal and exchanges between MI and Controller,
between Controller and FSC. The buttons do their own cooking and connect
directly to THEMIM or to some of the few signals of the Controller
(inputExist, inputHasVideo, inputCanRecord)

This reworks most of the HACKS of Teletext Buttons and AtoB Buttons

The FSC inherit from AbstractController and not Controller, which remove the b_fscreation HACK.

There will be some regressions, I tried my best to minimize them.

The code is generic enough to be able to customize the toolbars now. HAVE FUN!

Each susbcriber has its own ring buffer already.

I don't quite understand why Qt4 would subscribe to messages all the
time rather than only when the dialog is on.

It should close #2195.