Add xml for filter masks

data/blacklisted_effects.txt

@@ -241,8 +241,6 @@ avfilter.shuffleframes
 avfilter.swaprect
 avfilter.tlut2
 avfilter.vignette
-mask_apply
-mask_start
 qtext
 rgblut
 timer

data/effects/CMakeLists.txt

@@ -111,6 +111,8 @@ lightshow.xml
 loudness.xml
 luma.xml
 lumaliftgaingamma.xml
+mask_start.xml
+mask_apply.xml
 mirror.xml
 mono.xml
 movit_blur.xml

data/effects/frei0r_alphaspot.xml

@@ -46,5 +46,4 @@
                 <paramlistdisplay>Write on clear,Max,Min,Add,Subtract</paramlistdisplay>
                 <name>Operation</name>
         </parameter>
-
 </effect>

data/effects/mask_apply.xml

+<!DOCTYPE kpartgui>
+<effect tag="mask_apply" id="mask_apply">
+	<name context="Mask Apply Effect Name">Mask Apply</name>
+	<description>Apply the previous effects in the zone defined by a Mask Start effect.</description>
+	<author>Dan Dennedy</author>
+</effect>

data/effects/mask_start.xml

+<!DOCTYPE kpartgui>
+<effect LC_NUMERIC="C" tag="mask_start" id="mask_start">
+        <name>Setup a Filter Mask</name>
+        <author>Dan Dennedy</author>
+        <parameter type="list" name="filter.Shape" default="0" paramlist="0;0.38;0.62;1">
+                <paramlistdisplay>Rectangle,Ellipse,Triangle,Diamond</paramlistdisplay>
+                <name>Shape</name>
+        </parameter>
+
+        <parameter type="animated" name="filter.Position X" default="0.5" min="-500" max="1500" factor="1000">
+                <name>Position X</name>
+        </parameter>
+
+        <parameter type="animated" name="filter.Position Y" default="0.5" min="-500" max="1500" factor="1000">
+                <name>Position Y</name>
+        </parameter>
+
+        <parameter type="animated" name="filter.Size X" default="0.1" min="0" max="1000" factor="1000">
+                <name>Size X</name>
+        </parameter>
+
+        <parameter type="animated" name="filter.Size Y" default="0.1" min="0" max="1000" factor="1000">
+                <name>Size Y</name>
+        </parameter>
+
+        <parameter type="animated" name="filter.Tilt" default="0.5" min="0" max="1000" factor="1000">
+                <name>Tilt</name>
+        </parameter>
+
+        <parameter type="animated" name="filter.Transition width" default="0.2" min="0" max="1000" factor="1000">
+                <name>Transition width</name>
+        </parameter>
+
+        <parameter type="animated" name="filter.Min" default="0" min="0" max="1000" factor="1000">
+                <name>Min</name>
+        </parameter>
+
+        <parameter type="animated" name="filter.Max" default="1" min="0" max="1000" factor="1000">
+                <name>Max</name>
+        </parameter>
+
+        <parameter type="list" name="filter.Operation" default="0" paramlist="0;0.3;0.5;0.7;1">
+                <paramlistdisplay>Write on clear,Max,Min,Add,Subtract</paramlistdisplay>
+                <name>Operation</name>
+        </parameter>
+
+</effect>