Add mlt_properties_anim_set/get_double().

src/framework/mlt_properties.c

@@ -2108,6 +2108,57 @@ int mlt_properties_anim_set_int( mlt_properties self, const char *name, int valu
 	return error;
 }
 
+/** Get a real number associated to the name at a frame position.
+ *
+ * \public \memberof mlt_properties_s
+ * \param self a properties list
+ * \param name the property to get
+ * \return The real number, 0 if not found (which may also be a legitimate value)
+ */
+
+double mlt_properties_anim_get_double( mlt_properties self, const char *name, int position, int length )
+{
+	mlt_profile profile = mlt_properties_get_data( self, "_profile", NULL );
+	double fps = mlt_profile_fps( profile );
+	property_list *list = self->local;
+	mlt_property value = mlt_properties_find( self, name );
+	return value == NULL ? 0.0 : mlt_property_anim_get_double( value, fps, list->locale, position, length );
+}
+
+/** Set a property to a real number at a frame position.
+ *
+ * \public \memberof mlt_properties_s
+ * \param self a properties list
+ * \param name the property to set
+ * \param value the real number
+ * \return true if error
+ */
+
+int mlt_properties_anim_set_double( mlt_properties self, const char *name, double value,
+	mlt_keyframe_type keyframe_type, int position, int length )
+{
+	int error = 1;
+
+	if ( !self || !name ) return error;
+
+	// Fetch the property to work with
+	mlt_property property = mlt_properties_fetch( self, name );
+
+	// Set it if not NULL
+	if ( property != NULL )
+	{
+		mlt_profile profile = mlt_properties_get_data( self, "_profile", NULL );
+		double fps = mlt_profile_fps( profile );
+		property_list *list = self->local;
+		error = mlt_property_anim_set_double( property, value, fps, list->locale, keyframe_type, position, length );
+		mlt_properties_do_mirror( self, name );
+	}
+
+	mlt_events_fire( self, "property-changed", name, NULL );
+
+	return error;
+}
+
 /** Set a property to a rectangle value.
  *
  * \public \memberof mlt_properties_s

src/framework/mlt_properties.h

@@ -92,10 +92,11 @@ extern char *mlt_properties_get_time( mlt_properties, const char* name, mlt_time
 
 extern int mlt_properties_anim_get_int( mlt_properties self, const char *name, int position, int length );
 extern int mlt_properties_anim_set_int( mlt_properties self, const char *name, int value, mlt_keyframe_type keyframe_type, int position, int length );
+extern double mlt_properties_anim_get_double( mlt_properties self, const char *name, int position, int length );
+extern int mlt_properties_anim_set_double( mlt_properties self, const char *name, double value, mlt_keyframe_type keyframe_type, int position, int length );
 
 extern int mlt_properties_set_rect( mlt_properties self, const char *name, mlt_rect value );
 extern mlt_rect mlt_properties_get_rect( mlt_properties self, const char *name );
-
 extern int mlt_properties_anim_set_rect( mlt_properties self, const char *name, mlt_rect value, mlt_keyframe_type keyframe_type, int position, int length );
 extern mlt_rect mlt_properties_anim_get_rect( mlt_properties self, const char *name, int position, int length );
 

src/framework/mlt_property.c

@@ -591,7 +591,7 @@ char *mlt_property_get_string( mlt_property self )
 		{
 			self->types |= mlt_prop_string;
 			self->prop_string = malloc( 32 );
-			sprintf( self->prop_string, "%f", self->prop_double );
+			sprintf( self->prop_string, "%g", self->prop_double );
 		}
 		else if ( self->types & mlt_prop_position )
 		{
@@ -667,7 +667,7 @@ char *mlt_property_get_string_l( mlt_property self, locale_t locale )
 		{
 			self->types |= mlt_prop_string;
 			self->prop_string = malloc( 32 );
-			sprintf( self->prop_string, "%f", self->prop_double );
+			sprintf( self->prop_string, "%g", self->prop_double );
 		}
 		else if ( self->types & mlt_prop_position )
 		{

src/mlt++/MltProperties.cpp

@@ -347,6 +347,16 @@ int Properties::anim_set( const char *name, int value, int position, int length,
 	return mlt_properties_anim_set_int( get_properties(), name, value, keyframe_type, position, length );
 }
 
+double Properties::anim_get_double(const char *name, int position, int length)
+{
+	return mlt_properties_anim_get_double( get_properties(), name, position, length );
+}
+
+int Properties::anim_set(const char *name, double value, int position, int length, mlt_keyframe_type keyframe_type)
+{
+	return mlt_properties_anim_set_double( get_properties(), name, value, keyframe_type, position, length );
+}
+
 int Properties::set( const char *name, mlt_rect value )
 {
 	return mlt_properties_set_rect( get_properties(), name, value );

src/mlt++/MltProperties.h

@@ -101,6 +101,10 @@ namespace Mlt
 			int anim_get_int( const char *name, int position, int length );
 			int anim_set( const char *name, int value, int position, int length,
 				mlt_keyframe_type keyframe_type = mlt_keyframe_linear );
+			double anim_get_double( const char *name, int position, int length );
+			int anim_set( const char *name, double value, int position, int length,
+				mlt_keyframe_type keyframe_type = mlt_keyframe_linear );
+
 			int set( const char *name, mlt_rect value );
 			int set( const char *name, double x, double y, double w, double h, double opacity = 1.0 );
 			mlt_rect get_rect( const char* name );

src/tests/test_properties/test_properties.cpp

@@ -133,8 +133,8 @@ private Q_SLOTS:
     void DoubleFromString()
     {
         Properties p;
-        const char *s = "-1.234567";
-        double d = -1.234567;
+        const char *s = "-1.23456";
+        double d = -1.23456;
         p.set("key", d);
         QCOMPARE(p.get("key"), s);
         p.set("key", s);
@@ -655,6 +655,36 @@ private Q_SLOTS:
         QCOMPARE(p.anim_get_int("foo", 50, len), 200);
     }
 
+    void PropertiesAnimDouble()
+    {
+        int len = 50;
+        Properties p;
+        p.set_lcnumeric("POSIX");
+
+        // Construct animation from scratch
+        p.anim_set("foo",   0.0,  0, len);
+        p.anim_set("foo", 100.0, 50, len, mlt_keyframe_smooth);
+        QCOMPARE(p.anim_get_double("foo",  0, len), 0.0);
+        QCOMPARE(p.anim_get_double("foo", 25, len), 50.0);
+        QCOMPARE(p.anim_get_double("foo", 50, len), 100.0);
+        QCOMPARE(p.get("foo"), "0=0;50~=100");
+
+        // Animation from string value
+        p.set("foo", "10=100.2;20=200.8");
+        QCOMPARE(p.anim_get_double("foo",  0, len), 100.2);
+        QCOMPARE(p.anim_get_double("foo", 15, len), 150.5);
+        QCOMPARE(p.anim_get_double("foo", 20, len), 200.8);
+
+        // Animation from string using time clock values
+        // Need to set a profile so fps can be used to convert time to frames.
+        Profile profile("dv_pal");
+        p.set("_profile", profile.get_profile(), 0);
+        p.set("foo", ":0.0=100; :2.0=200");
+        QCOMPARE(p.anim_get_double("foo",  0, len), 100.0);
+        QCOMPARE(p.anim_get_double("foo", 25, len), 150.0);
+        QCOMPARE(p.anim_get_double("foo", 50, len), 200.0);
+    }
+
     void test_mlt_rect()
     {
         mlt_property p = mlt_property_init();