X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fframework%2Fmlt_frame.c;h=c0d75d666de754491645dd47a829bf68fc6ca1c8;hb=0ef075de03b447797a8530585815c8c86aae5178;hp=6c367e9335e79778f38386855afc4524f90b3b22;hpb=efe08354d45db7bf5478ffa17c35330a3e0d415c;p=melted

diff --git a/src/framework/mlt_frame.c b/src/framework/mlt_frame.c
index 6c367e9..c0d75d6 100644
--- a/src/framework/mlt_frame.c
+++ b/src/framework/mlt_frame.c
@@ -68,6 +68,7 @@ mlt_frame mlt_frame_init( )
 		// Construct stacks for frames and methods
 		this->stack_get_image = mlt_deque_init( );
 		this->stack_frame = mlt_deque_init( );
+		this->stack_service = mlt_deque_init( );
 	}
 
 	return this;
@@ -161,6 +162,22 @@ mlt_frame mlt_frame_pop_frame( mlt_frame this )
 	return mlt_deque_pop_back( this->stack_frame );
 }
 
+/** Push a service.
+*/
+
+int mlt_frame_push_service( mlt_frame this, void *that )
+{
+	return mlt_deque_push_back( this->stack_service, that );
+}
+
+/** Pop a service.
+*/
+
+void *mlt_frame_pop_service( mlt_frame this )
+{
+	return mlt_deque_pop_back( this->stack_service );
+}
+
 int mlt_frame_get_image( mlt_frame this, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
 {
 	mlt_properties properties = mlt_frame_properties( this );
@@ -293,10 +310,14 @@ int mlt_frame_get_audio( mlt_frame this, int16_t **buffer, mlt_audio_format *for
 
 void mlt_frame_close( mlt_frame this )
 {
-	mlt_deque_close( this->stack_get_image );
-	mlt_deque_close( this->stack_frame );
-	mlt_properties_close( &this->parent );
-	free( this );
+	if ( this != NULL )
+	{
+		mlt_deque_close( this->stack_get_image );
+		mlt_deque_close( this->stack_frame );
+		mlt_deque_close( this->stack_service );
+		mlt_properties_close( &this->parent );
+		free( this );
+	}
 }
 
 /***** convenience functions *****/