+ Alternative between track mixing mechanism (using a low pass filter)

[melted] / src / framework / mlt_property.c

diff --git a/src/framework/mlt_property.c b/src/framework/mlt_property.c
index a4bba69..d057f0c 100644 (file)
--- a/src/framework/mlt_property.c
+++ b/src/framework/mlt_property.c
@@ -110,12 +110,19 @@ int mlt_property_set_position( mlt_property this, mlt_position value )
 /** Set a string on this property.
 */
 
-int mlt_property_set_string( mlt_property this, char *value )
+int mlt_property_set_string( mlt_property this, const char *value )
 {
-       mlt_property_clear( this );
-       this->types = mlt_prop_string;
-       if ( value != NULL )
-               this->prop_string = strdup( value );
+       if ( value != this->prop_string )
+       {
+               mlt_property_clear( this );
+               this->types = mlt_prop_string;
+               if ( value != NULL )
+                       this->prop_string = strdup( value );
+       }
+       else
+       {
+               this->types = mlt_prop_string;
+       }
        return this->prop_string == NULL;
 }
 
@@ -146,6 +153,16 @@ int mlt_property_set_data( mlt_property this, void *value, int length, mlt_destr
        return 0;
 }
 
+static inline int mlt_property_atoi( const char *value )
+{
+       if ( value == NULL )
+               return 0;
+       else if ( value[0] == '0' && value[1] == 'x' )
+               return strtol( value + 2, NULL, 16 );
+       else 
+               return strtol( value, NULL, 10 );
+}
+
 /** Get an int from this property.
 */
 
@@ -160,7 +177,7 @@ int mlt_property_get_int( mlt_property this )
        else if ( this->types & mlt_prop_int64 )
                return ( int )this->prop_int64;
        else if ( this->types & mlt_prop_string )
-               return atoi( this->prop_string );
+               return mlt_property_atoi( this->prop_string );
        return 0;
 }
 
@@ -200,6 +217,16 @@ mlt_position mlt_property_get_position( mlt_property this )
        return 0;
 }
 
+static inline int64_t mlt_property_atoll( const char *value )
+{
+       if ( value == NULL )
+               return 0;
+       else if ( value[0] == '0' && value[1] == 'x' )
+               return strtoll( value + 2, NULL, 16 );
+       else 
+               return strtoll( value, NULL, 10 );
+}
+
 /** Get an int64 from this property.
 */
 
@@ -214,7 +241,7 @@ int64_t mlt_property_get_int64( mlt_property this )
        else if ( this->types & mlt_prop_position )
                return ( int64_t )this->prop_position;
        else if ( this->types & mlt_prop_string )
-               return ( int64_t )atol( this->prop_string );
+               return mlt_property_atoll( this->prop_string );
        return 0;
 }
 
@@ -242,7 +269,7 @@ char *mlt_property_get_string( mlt_property this )
                {
                        this->types |= mlt_prop_string;
                        this->prop_string = malloc( 32 );
-                       sprintf( this->prop_string, "%d", this->prop_position );
+                       sprintf( this->prop_string, "%d", (int)this->prop_position ); /* I don't know if this is wanted. -Zach */
                }
                else if ( this->types & mlt_prop_int64 )
                {
@@ -283,4 +310,31 @@ void mlt_property_close( mlt_property this )
        free( this );
 }
 
+/** Pass the property 'that' to 'this'.
+* Who to blame: Zach <zachary.drew@gmail.com>
+*/
+void mlt_property_pass( mlt_property this, mlt_property that )
+{
+       mlt_property_clear( this );
+
+       this->types = that->types;
 
+       if ( this->types & mlt_prop_int64 )
+               this->prop_int64 = that->prop_int64;
+       else if ( this->types & mlt_prop_int )
+               this->prop_int = that->prop_int;
+       else if ( this->types & mlt_prop_double )
+               this->prop_double = that->prop_double;
+       else if ( this->types & mlt_prop_position )
+               this->prop_position = that->prop_position;
+       else if ( this->types & mlt_prop_string )
+       {
+               if ( that->prop_string != NULL )
+                       this->prop_string = strdup( that->prop_string );
+       }
+       else if ( this->types & mlt_prop_data && this->serialiser != NULL )
+       {
+               this->types = mlt_prop_string;
+               this->prop_string = this->serialiser( this->data, this->length );       
+       }
+}