X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fframework%2Fmlt_frame.c;h=60dfb2817c7cf0c8182aec1e6b38d924f001122c;hb=00db7ed91dfa61f9e144b6d5548350a5954deb61;hp=04bc9baab41882bf8303490f1be9797f8dc0939c;hpb=6e4f3aabfeae526318998c1078213de269ea2e65;p=melted

diff --git a/src/framework/mlt_frame.c b/src/framework/mlt_frame.c
index 04bc9ba..60dfb28 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 );
@@ -297,6 +314,7 @@ void mlt_frame_close( mlt_frame this )
 	{
 		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 );
 	}
@@ -574,9 +592,6 @@ uint8_t *mlt_frame_rescale_yuv422( mlt_frame this, int owidth, int oheight )
 
 		iwidth = iwidth - ( iwidth % 4 );
 
-    	// Coordinates (0,0 is middle of output)
-    	int y, x;
-
 		// Derived coordinates
 		int dy, dx;
 
@@ -587,41 +602,44 @@ uint8_t *mlt_frame_rescale_yuv422( mlt_frame this, int owidth, int oheight )
     	int in_y_range = iheight / 2;
 
     	// Output pointers
-    	uint8_t *out_line = output;
-    	uint8_t *out_ptr;
+    	register uint8_t *out_line = output;
+    	register uint8_t *out_ptr;
 
     	// Calculate a middle pointer
     	uint8_t *in_middle = input + istride * in_y_range + in_x_range * 2;
     	uint8_t *in_line;
-		uint8_t *in_ptr;
 
 		// Generate the affine transform scaling values
-		int scale_width = ( iwidth << 16 ) / owidth;
-		int scale_height = ( iheight << 16 ) / oheight;
+		register int scale_width = ( iwidth << 16 ) / owidth;
+		register int scale_height = ( iheight << 16 ) / oheight;
+		register int base = 0;
+
+		int outer = out_x_range * scale_width;
+		int bottom = out_y_range * scale_height;
 
     	// Loop for the entirety of our output height.
-    	for ( y = - out_y_range; y < out_y_range ; y ++ )
+    	for ( dy = - bottom; dy < bottom; dy += scale_height )
     	{
-			// Calculate the derived y value
-			dy = ( scale_height * y ) >> 16;
-
         	// Start at the beginning of the line
         	out_ptr = out_line;
 	
         	// Pointer to the middle of the input line
-        	in_line = in_middle + dy * istride;
-	
+        	in_line = in_middle + ( dy >> 16 ) * istride;
+
         	// Loop for the entirety of our output row.
-        	for ( x = - out_x_range; x < out_x_range; x += 1 )
+        	for ( dx = - outer; dx < outer; dx += scale_width )
         	{
-				// Calculated the derived x
-				dx = ( scale_width * x ) >> 16;
-
-               	// We're in the input range for this row.
-				in_ptr = in_line + ( dx << 1 );
-               	*out_ptr ++ = *in_ptr ++;
-				in_ptr = in_line + ( ( dx >> 1 ) << 2 ) + ( ( x & 1 ) << 1 ) + 1;
-               	*out_ptr ++ = *in_ptr;
+				base = dx >> 15;
+				base &= 0xfffffffe;
+				*out_ptr ++ = *( in_line + base );
+				base &= 0xfffffffc;
+				*out_ptr ++ = *( in_line + base + 1 );
+				dx += scale_width;
+				base = dx >> 15;
+				base &= 0xfffffffe;
+				*out_ptr ++ = *( in_line + base );
+				base &= 0xfffffffc;
+				*out_ptr ++ = *( in_line + base + 3 );
         	}
 
         	// Move to next output line