X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fcore%2Ftransition_composite.c;h=88c12225c556cf8300cb997bf4572a09a2433550;hb=e253fb0e1e231bcdc77bc37b05c7a9724dbe2bb1;hp=d9c1bf40c3ff5deb62d2229d0ab45ba689426577;hpb=d7ae73d25cf5a38a3a8153ae52409fcbef16bb22;p=melted

diff --git a/src/modules/core/transition_composite.c b/src/modules/core/transition_composite.c
index d9c1bf4..88c1222 100644
--- a/src/modules/core/transition_composite.c
+++ b/src/modules/core/transition_composite.c
@@ -19,7 +19,7 @@
  */
 
 #include "transition_composite.h"
-#include <framework/mlt_frame.h>
+#include <framework/mlt.h>
 
 #include <stdio.h>
 #include <stdlib.h>
@@ -27,11 +27,20 @@
 #include <string.h>
 #include <math.h>
 
+typedef void ( *composite_line_fn )( uint8_t *dest, uint8_t *src, int width_src, uint8_t *alpha, int weight, uint16_t *luma, int softness );
+
+/* mmx function declarations */
+#ifdef USE_MMX
+	void composite_line_yuv_mmx( uint8_t *dest, uint8_t *src, int width_src, uint8_t *alpha, int weight, uint16_t *luma, int softness );
+	int composite_have_mmx( void );
+#endif
+
 /** Geometry struct.
 */
 
 struct geometry_s
 {
+	int frame;
 	float position;
 	float mix;
 	int nw; // normalised width
@@ -146,18 +155,34 @@ static void geometry_calculate( struct geometry_s *output, struct geometry_s *in
 	position = ( position - in->position ) / ( out->position - in->position );
 
 	// Calculate this frames geometry
-	output->nw = in->nw;
-	output->nh = in->nh;
-	output->x = in->x + ( out->x - in->x ) * position;
-	output->y = in->y + ( out->y - in->y ) * position;
-	output->w = in->w + ( out->w - in->w ) * position;
-	output->h = in->h + ( out->h - in->h ) * position;
-	output->mix = in->mix + ( out->mix - in->mix ) * position;
-	output->distort = in->distort;
-
-	output->x = ( int )floor( output->x ) & 0xfffffffe;
-	output->w = ( int )floor( output->w ) & 0xfffffffe;
-	output->sw &= 0xfffffffe;
+	if ( in->frame != out->frame - 1 )
+	{
+		output->nw = in->nw;
+		output->nh = in->nh;
+		output->x = in->x + ( out->x - in->x ) * position;
+		output->y = in->y + ( out->y - in->y ) * position;
+		output->w = in->w + ( out->w - in->w ) * position;
+		output->h = in->h + ( out->h - in->h ) * position;
+		output->mix = in->mix + ( out->mix - in->mix ) * position;
+		output->distort = in->distort;
+	}
+	else
+	{
+		output->nw = out->nw;
+		output->nh = out->nh;
+		output->x = out->x;
+		output->y = out->y;
+		output->w = out->w;
+		output->h = out->h;
+		output->mix = out->mix;
+		output->distort = out->distort;
+	}
+
+	// DRD> These break on negative values. I do not think they are needed
+	// since yuv_composite takes care of YUYV group alignment
+	//output->x = ( int )floor( output->x ) & 0xfffffffe;
+	//output->w = ( int )floor( output->w ) & 0xfffffffe;
+	//output->sw &= 0xfffffffe;
 }
 
 void transition_destroy_keys( void *arg )
@@ -229,7 +254,8 @@ static struct geometry_s *transition_parse_keys( mlt_transition this,  int norma
 				// Parse and add to the list
 				geometry_parse( temp, ptr, value, normalised_width, normalised_height );
 
-				// Assign the position
+				// Assign the position and frame
+				temp->frame = frame;
 				temp->position = position;
 
 				// Allow the next to be appended after this one
@@ -285,15 +311,12 @@ static void alignment_calculate( struct geometry_s *geometry )
 /** Calculate the position for this frame.
 */
 
-static float position_calculate( mlt_transition this, mlt_frame frame )
+static float position_calculate( mlt_transition this, mlt_position position )
 {
 	// Get the in and out position
 	mlt_position in = mlt_transition_get_in( this );
 	mlt_position out = mlt_transition_get_out( this );
 
-	// Get the position
-	mlt_position position = mlt_frame_get_position( frame );
-
 	// Now do the calcs
 	return ( float )( position - in ) / ( float )( out - in + 1 );
 }
@@ -308,7 +331,8 @@ static inline float delta_calculate( mlt_transition this, mlt_frame frame )
 	mlt_position out = mlt_transition_get_out( this );
 
 	// Get the position of the frame
-	mlt_position position = mlt_frame_get_position( frame );
+	char *name = mlt_properties_get( mlt_transition_properties( this ), "_unique_id" );
+	mlt_position position = mlt_properties_get_position( mlt_frame_properties( frame ), name );
 
 	// Now do the calcs
 	float x = ( float )( position - in ) / ( float )( out - in + 1 );
@@ -325,22 +349,206 @@ static int get_value( mlt_properties properties, char *preferred, char *fallback
 	return value;
 }
 
+/** A linear threshold determination function.
+*/
+
+static inline int32_t linearstep( int32_t edge1, int32_t edge2, int32_t a )
+{
+	if ( a < edge1 )
+		return 0;
+
+	if ( a >= edge2 )
+		return 0x10000;
+
+	return ( ( a - edge1 ) << 16 ) / ( edge2 - edge1 );
+}
+
+/** A smoother, non-linear threshold determination function.
+*/
+
+static inline int32_t smoothstep( int32_t edge1, int32_t edge2, uint32_t a )
+{
+	if ( a < edge1 )
+		return 0;
+
+	if ( a >= edge2 )
+		return 0x10000;
+
+	a = ( ( a - edge1 ) << 16 ) / ( edge2 - edge1 );
+
+	return ( ( ( a * a ) >> 16 )  * ( ( 3 << 16 ) - ( 2 * a ) ) ) >> 16;
+}
+
+/** Load the luma map from PGM stream.
+*/
+
+static void luma_read_pgm( FILE *f, uint16_t **map, int *width, int *height )
+{
+	uint8_t *data = NULL;
+	while (1)
+	{
+		char line[128];
+		char comment[128];
+		int i = 2;
+		int maxval;
+		int bpp;
+		uint16_t *p;
+
+		line[127] = '\0';
+
+		// get the magic code
+		if ( fgets( line, 127, f ) == NULL )
+			break;
+
+		// skip comments
+		while ( sscanf( line, " #%s", comment ) > 0 )
+			if ( fgets( line, 127, f ) == NULL )
+				break;
+
+		if ( line[0] != 'P' || line[1] != '5' )
+			break;
+
+		// skip white space and see if a new line must be fetched
+		for ( i = 2; i < 127 && line[i] != '\0' && isspace( line[i] ); i++ );
+		if ( ( line[i] == '\0' || line[i] == '#' ) && fgets( line, 127, f ) == NULL )
+			break;
+
+		// skip comments
+		while ( sscanf( line, " #%s", comment ) > 0 )
+			if ( fgets( line, 127, f ) == NULL )
+				break;
+
+		// get the dimensions
+		if ( line[0] == 'P' )
+			i = sscanf( line, "P5 %d %d %d", width, height, &maxval );
+		else
+			i = sscanf( line, "%d %d %d", width, height, &maxval );
+
+		// get the height value, if not yet
+		if ( i < 2 )
+		{
+			if ( fgets( line, 127, f ) == NULL )
+				break;
+
+			// skip comments
+			while ( sscanf( line, " #%s", comment ) > 0 )
+				if ( fgets( line, 127, f ) == NULL )
+					break;
+
+			i = sscanf( line, "%d", height );
+			if ( i == 0 )
+				break;
+			else
+				i = 2;
+		}
+
+		// get the maximum gray value, if not yet
+		if ( i < 3 )
+		{
+			if ( fgets( line, 127, f ) == NULL )
+				break;
+
+			// skip comments
+			while ( sscanf( line, " #%s", comment ) > 0 )
+				if ( fgets( line, 127, f ) == NULL )
+					break;
+
+			i = sscanf( line, "%d", &maxval );
+			if ( i == 0 )
+				break;
+		}
+
+		// determine if this is one or two bytes per pixel
+		bpp = maxval > 255 ? 2 : 1;
+
+		// allocate temporary storage for the raw data
+		data = mlt_pool_alloc( *width * *height * bpp );
+		if ( data == NULL )
+			break;
+
+		// read the raw data
+		if ( fread( data, *width * *height * bpp, 1, f ) != 1 )
+			break;
+
+		// allocate the luma bitmap
+		*map = p = (uint16_t*)mlt_pool_alloc( *width * *height * sizeof( uint16_t ) );
+		if ( *map == NULL )
+			break;
+
+		// proces the raw data into the luma bitmap
+		for ( i = 0; i < *width * *height * bpp; i += bpp )
+		{
+			if ( bpp == 1 )
+				*p++ = data[ i ] << 8;
+			else
+				*p++ = ( data[ i ] << 8 ) + data[ i + 1 ];
+		}
+
+		break;
+	}
+
+	if ( data != NULL )
+		mlt_pool_release( data );
+}
+
+/** Generate a luma map from any YUV image.
+*/
+
+static void luma_read_yuv422( uint8_t *image, uint16_t **map, int width, int height )
+{
+	int i;
+	
+	// allocate the luma bitmap
+	uint16_t *p = *map = ( uint16_t* )mlt_pool_alloc( width * height * sizeof( uint16_t ) );
+	if ( *map == NULL )
+		return;
+
+	// proces the image data into the luma bitmap
+	for ( i = 0; i < width * height * 2; i += 2 )
+		*p++ = ( image[ i ] - 16 ) * 299; // 299 = 65535 / 219
+}
+
+
+/** Composite a source line over a destination line
+*/
+
+static inline
+void composite_line_yuv( uint8_t *dest, uint8_t *src, int width_src, uint8_t *alpha, int weight, uint16_t *luma, int softness )
+{
+	register int j;
+	int a, mix;
+	
+	for ( j = 0; j < width_src; j ++ )
+	{
+		a = ( alpha == NULL ) ? 255 : *alpha ++;
+		mix = ( luma == NULL ) ? weight : linearstep( luma[ j ], luma[ j ] + softness, weight );
+		mix = ( mix * ( a + 1 ) ) >> 8;
+		*dest = ( *src++ * mix + *dest * ( ( 1 << 16 ) - mix ) ) >> 16;
+		dest++;
+		*dest = ( *src++ * mix + *dest * ( ( 1 << 16 ) - mix ) ) >> 16;
+		dest++;
+	}
+}
+
 /** Composite function.
 */
 
-static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, int bpp, uint8_t *p_src, int width_src, int height_src, uint8_t *p_alpha, struct geometry_s geometry, int field )
+static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, uint8_t *p_src, int width_src, int height_src, uint8_t *p_alpha, struct geometry_s geometry, int field, uint16_t *p_luma, int32_t softness, composite_line_fn line_fn )
 {
 	int ret = 0;
-	int i, j;
+	int i;
 	int x_src = 0, y_src = 0;
 	int32_t weight = ( 1 << 16 ) * ( geometry.mix / 100 );
+	int step = ( field > -1 ) ? 2 : 1;
+	int bpp = 2;
 	int stride_src = width_src * bpp;
 	int stride_dest = width_dest * bpp;
-
+	
 	// Adjust to consumer scale
 	int x = geometry.x * width_dest / geometry.nw;
 	int y = geometry.y * height_dest / geometry.nh;
 
+	// Align x to a full YUYV group
 	x &= 0xfffffffe;
 	width_src &= 0xfffffffe;
 
@@ -360,7 +568,7 @@ static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, int
 	}
 	
 	// crop overlay beyond right edge of frame
-	else if ( x + width_src > width_dest )
+	if ( x + width_src > width_dest )
 		width_src = width_dest - x;
 
 	// crop overlay off the top edge of the frame
@@ -369,8 +577,9 @@ static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, int
 		y_src = -y;
 		height_src -= y_src;
 	}
+	
 	// crop overlay below bottom edge of frame
-	else if ( y + height_src > height_dest )
+	if ( y + height_src > height_dest )
 		height_src = height_dest - y;
 
 	// offset pointer into overlay buffer based on cropping
@@ -383,6 +592,10 @@ static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, int
 	if ( p_alpha )
 		p_alpha += x_src + y_src * stride_src / bpp;
 
+	// offset pointer into luma channel based upon cropping
+	if ( p_luma )
+		p_luma += x_src + y_src * stride_src / bpp;
+	
 	// Assuming lower field first
 	// Special care is taken to make sure the b_frame is aligned to the correct field.
 	// field 0 = lower field and y should be odd (y is 0-based).
@@ -405,45 +618,170 @@ static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, int
 		height_src--;
 	}
 
-	uint8_t *p = p_src;
-	uint8_t *q = p_dest;
-	uint8_t *o = p_dest;
-	uint8_t *z = p_alpha;
-
-	uint8_t a;
-	int32_t value;
-	int step = ( field > -1 ) ? 2 : 1;
-
-	stride_src = stride_src * step;
+	stride_src *= step;
+	stride_dest *= step;
 	int alpha_stride = stride_src / bpp;
-	stride_dest = stride_dest * step;
 
 	// now do the compositing only to cropped extents
-	for ( i = 0; i < height_src; i += step )
+	if ( line_fn != NULL )
 	{
-		p = p_src;
-		q = p_dest;
-		o = q;
-		z = p_alpha;
-
-		for ( j = 0; j < width_src; j ++ )
+		for ( i = 0; i < height_src; i += step )
 		{
-			a = ( z == NULL ) ? 255 : *z ++;
-			value = ( weight * ( a + 1 ) ) >> 8;
-			*o ++ = ( *p++ * value + *q++ * ( ( 1 << 16 ) - value ) ) >> 16;
-			*o ++ = ( *p++ * value + *q++ * ( ( 1 << 16 ) - value ) ) >> 16;
+			line_fn( p_dest, p_src, width_src, p_alpha, weight, p_luma, softness );
+	
+			p_src += stride_src;
+			p_dest += stride_dest;
+			if ( p_alpha )
+				p_alpha += alpha_stride;
+			if ( p_luma )
+				p_luma += alpha_stride;
+		}
+	}
+	else
+	{
+		for ( i = 0; i < height_src; i += step )
+		{
+			composite_line_yuv( p_dest, p_src, width_src, p_alpha, weight, p_luma, softness );
+	
+			p_src += stride_src;
+			p_dest += stride_dest;
+			if ( p_alpha )
+				p_alpha += alpha_stride;
+			if ( p_luma )
+				p_luma += alpha_stride;
 		}
-
-		p_src += stride_src;
-		p_dest += stride_dest;
-		if ( p_alpha )
-			p_alpha += alpha_stride;
 	}
 
 	return ret;
 }
 
 
+/** Scale 16bit greyscale luma map using nearest neighbor.
+*/
+
+static inline void
+scale_luma ( uint16_t *dest_buf, int dest_width, int dest_height, const uint16_t *src_buf, int src_width, int src_height )
+{
+	register int i, j;
+	register int x_step = ( src_width << 16 ) / dest_width;
+	register int y_step = ( src_height << 16 ) / dest_height;
+	register int x, y = 0;
+
+	for ( i = 0; i < dest_height; i++ )
+	{
+		const uint16_t *src = src_buf + ( y >> 16 ) * src_width;
+		x = 0;
+		
+		for ( j = 0; j < dest_width; j++ )
+		{
+			*dest_buf++ = src[ x >> 16 ];
+			x += x_step;
+		}
+		y += y_step;
+	}
+}
+
+static uint16_t* get_luma( mlt_properties properties, int width, int height )
+{
+	// The cached luma map information
+	int luma_width = mlt_properties_get_int( properties, "_luma.width" );
+	int luma_height = mlt_properties_get_int( properties, "_luma.height" );
+	uint16_t *luma_bitmap = mlt_properties_get_data( properties, "_luma.bitmap", NULL );
+	
+	// If the filename property changed, reload the map
+	char *resource = mlt_properties_get( properties, "luma" );
+
+	if ( resource != NULL && ( luma_bitmap == NULL || luma_width != width || luma_height != height ) )
+	{
+		uint16_t *orig_bitmap = mlt_properties_get_data( properties, "_luma.orig_bitmap", NULL );
+		luma_width = mlt_properties_get_int( properties, "_luma.orig_width" );
+		luma_height = mlt_properties_get_int( properties, "_luma.orig_height" );
+
+		// Load the original luma once
+		if ( orig_bitmap == NULL )
+		{
+			char *extension = extension = strrchr( resource, '.' );
+			
+			// See if it is a PGM
+			if ( extension != NULL && strcmp( extension, ".pgm" ) == 0 )
+			{
+				// Open PGM
+				FILE *f = fopen( resource, "r" );
+				if ( f != NULL )
+				{
+					// Load from PGM
+					luma_read_pgm( f, &orig_bitmap, &luma_width, &luma_height );
+					fclose( f );
+					
+					// Remember the original size for subsequent scaling
+					mlt_properties_set_data( properties, "_luma.orig_bitmap", orig_bitmap, luma_width * luma_height * 2, mlt_pool_release, NULL );
+					mlt_properties_set_int( properties, "_luma.orig_width", luma_width );
+					mlt_properties_set_int( properties, "_luma.orig_height", luma_height );
+				}
+			}
+			else
+			{
+				// Get the factory producer service
+				char *factory = mlt_properties_get( properties, "factory" );
+	
+				// Create the producer
+				mlt_producer producer = mlt_factory_producer( factory, resource );
+	
+				// If we have one
+				if ( producer != NULL )
+				{
+					// Get the producer properties
+					mlt_properties producer_properties = mlt_producer_properties( producer );
+	
+					// Ensure that we loop
+					mlt_properties_set( producer_properties, "eof", "loop" );
+	
+					// Now pass all producer. properties on the transition down
+					mlt_properties_pass( producer_properties, properties, "luma." );
+	
+					// We will get the alpha frame from the producer
+					mlt_frame luma_frame = NULL;
+	
+					// Get the luma frame
+					if ( mlt_service_get_frame( mlt_producer_service( producer ), &luma_frame, 0 ) == 0 )
+					{
+						uint8_t *luma_image;
+						mlt_image_format luma_format = mlt_image_yuv422;
+	
+						// Get image from the luma producer
+						mlt_properties_set( mlt_frame_properties( luma_frame ), "rescale.interp", "none" );
+						mlt_frame_get_image( luma_frame, &luma_image, &luma_format, &luma_width, &luma_height, 0 );
+	
+						// Generate the luma map
+						if ( luma_image != NULL && luma_format == mlt_image_yuv422 )
+							luma_read_yuv422( luma_image, &orig_bitmap, luma_width, luma_height );
+	
+						// Remember the original size for subsequent scaling
+						mlt_properties_set_data( properties, "_luma.orig_bitmap", orig_bitmap, luma_width * luma_height * 2, mlt_pool_release, NULL );
+						mlt_properties_set_int( properties, "_luma.orig_width", luma_width );
+						mlt_properties_set_int( properties, "_luma.orig_height", luma_height );
+						
+						// Cleanup the luma frame
+						mlt_frame_close( luma_frame );
+					}
+	
+					// Cleanup the luma producer
+					mlt_producer_close( producer );
+				}
+			}
+		}
+		// Scale luma map
+		luma_bitmap = mlt_pool_alloc( width * height * sizeof( uint16_t ) );
+		scale_luma( luma_bitmap, width, height, orig_bitmap, luma_width, luma_height );
+
+		// Remember the scaled luma size to prevent unnecessary scaling
+		mlt_properties_set_int( properties, "_luma.width", width );
+		mlt_properties_set_int( properties, "_luma.height", height );
+		mlt_properties_set_data( properties, "_luma.bitmap", luma_bitmap, width * height * 2, mlt_pool_release, NULL );
+	}
+	return luma_bitmap;
+}
+
 /** Get the properly sized image from b_frame.
 */
 
@@ -465,13 +803,8 @@ static int get_b_frame_image( mlt_transition this, mlt_frame b_frame, uint8_t **
 		int real_height = get_value( b_props, "real_height", "height" );
 		double input_ar = mlt_frame_get_aspect_ratio( b_frame );
 		double output_ar = mlt_properties_get_double( b_props, "consumer_aspect_ratio" );
-		int scaled_width = real_width;
+		int scaled_width = input_ar / output_ar * real_width;
 		int scaled_height = real_height;
-		double output_sar = ( double ) geometry->nw / geometry->nh / output_ar;
-
-		// If the output is fat pixels (NTSC) then stretch our input horizontally
-		// derived from: output_sar / input_sar * real_width
-		scaled_width = output_sar * real_height * input_ar;
 			
 		// Now ensure that our images fit in the normalised frame
 		if ( scaled_width > normalised_width )
@@ -515,10 +848,10 @@ static int get_b_frame_image( mlt_transition this, mlt_frame b_frame, uint8_t **
 	*width = geometry->sw * *width / geometry->nw;
 	*height = geometry->sh * *height / geometry->nh;
 
-	x -= x % 2;
+	x &= 0xfffffffe;
 
 	// optimization points - no work to do
-	if ( *width <= 0 || *height <= 0 )
+	if ( *width < 1 || *height < 1 )
 		return 1;
 
 	if ( ( x < 0 && -x >= *width ) || ( y < 0 && -y >= *height ) )
@@ -562,7 +895,7 @@ struct geometry_s *composite_calculate( struct geometry_s *result, mlt_transitio
 	return start;
 }
 
-mlt_frame composite_copy_region( mlt_transition this, mlt_frame a_frame )
+mlt_frame composite_copy_region( mlt_transition this, mlt_frame a_frame, mlt_position frame_position )
 {
 	// Create a frame to return
 	mlt_frame b_frame = mlt_frame_init( );
@@ -574,7 +907,7 @@ mlt_frame composite_copy_region( mlt_transition this, mlt_frame a_frame )
 	mlt_properties b_props = mlt_frame_properties( b_frame );
 
 	// Get the position
-	float position = position_calculate( this, a_frame );
+	float position = position_calculate( this, frame_position );
 
 	// Destination image
 	uint8_t *dest = NULL;
@@ -608,7 +941,7 @@ mlt_frame composite_copy_region( mlt_transition this, mlt_frame a_frame )
 	h = result.h * height / result.nh;
 
 	x &= 0xfffffffe;
-	w &= 0xfffffffe;
+	//w &= 0xfffffffe;
 
 	// Now we need to create a new destination image
 	dest = mlt_pool_alloc( w * h * 2 );
@@ -630,6 +963,9 @@ mlt_frame composite_copy_region( mlt_transition this, mlt_frame a_frame )
 	mlt_properties_set_int( b_props, "width", w );
 	mlt_properties_set_int( b_props, "height", h );
 
+	// Assign this position to the b frame
+	mlt_frame_set_position( b_frame, frame_position );
+
 	// Return the frame
 	return b_frame;
 }
@@ -671,11 +1007,14 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
 
 		// Do the calculation
 		struct geometry_s *start = composite_calculate( &result, this, a_frame, position );
+		
+		// Optimisation - no compositing required
+		if ( result.mix == 0 || ( result.w == 0 && result.h == 0 ) )
+			return 0;
 
 		// Since we are the consumer of the b_frame, we must pass along these
 		// consumer properties from the a_frame
 		mlt_properties_set_double( b_props, "consumer_aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
-		mlt_properties_set_double( b_props, "consumer_scale", mlt_properties_get_double( a_props, "consumer_scale" ) );
 
 		// Get the image from the b frame
 		uint8_t *image_b = NULL;
@@ -686,12 +1025,15 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
 		{
 			uint8_t *dest = *image;
 			uint8_t *src = image_b;
-			int bpp = 2;
 			uint8_t *alpha = mlt_frame_get_alpha_mask( b_frame );
-			int progressive = mlt_properties_get_int( a_props, "progressive" ) ||
+			int progressive = 
 					mlt_properties_get_int( a_props, "consumer_progressive" ) ||
 					mlt_properties_get_int( properties, "progressive" );
 			int field;
+			
+			int32_t luma_softness = mlt_properties_get_double( properties, "softness" ) * ( 1 << 16 );
+			uint16_t *luma_bitmap = get_luma( properties, width_b, height_b );
+			composite_line_fn line_fn = mlt_properties_get_int( properties, "_MMX" ) ? composite_line_yuv_mmx : NULL;
 
 			for ( field = 0; field < ( progressive ? 1 : 2 ); field++ )
 			{
@@ -705,7 +1047,7 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
 				alignment_calculate( &result );
 
 				// Composite the b_frame on the a_frame
-				composite_yuv( dest, *width, *height, bpp, src, width_b, height_b, alpha, result, progressive ? -1 : field );
+				composite_yuv( dest, *width, *height, src, width_b, height_b, alpha, result, progressive ? -1 : field, luma_bitmap, luma_softness, line_fn );
 			}
 		}
 	}
@@ -718,11 +1060,18 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
 
 static mlt_frame composite_process( mlt_transition this, mlt_frame a_frame, mlt_frame b_frame )
 {
+	// Get a unique name to store the frame position
+	char *name = mlt_properties_get( mlt_transition_properties( this ), "_unique_id" );
+
+	// Assign the current position to the name
+	mlt_properties_set_position( mlt_frame_properties( a_frame ), name, mlt_frame_get_position( a_frame ) );
+
 	// Propogate the transition properties to the b frame
-	mlt_properties_set_double( mlt_frame_properties( b_frame ), "relative_position", position_calculate( this, a_frame ) );
+	mlt_properties_set_double( mlt_frame_properties( b_frame ), "relative_position", position_calculate( this, mlt_frame_get_position( a_frame ) ) );
+	
 	mlt_frame_push_service( a_frame, this );
-	mlt_frame_push_get_image( a_frame, transition_get_image );
 	mlt_frame_push_frame( a_frame, b_frame );
+	mlt_frame_push_get_image( a_frame, transition_get_image );
 	return a_frame;
 }
 
@@ -734,9 +1083,19 @@ mlt_transition transition_composite_init( char *arg )
 	mlt_transition this = calloc( sizeof( struct mlt_transition_s ), 1 );
 	if ( this != NULL && mlt_transition_init( this, NULL ) == 0 )
 	{
+		mlt_properties properties = mlt_transition_properties( this );
+		
 		this->process = composite_process;
-		mlt_properties_set( mlt_transition_properties( this ), "start", arg != NULL ? arg : "85%,5%:10%x10%" );
+		
+		// Default starting motion and zoom
+		mlt_properties_set( properties, "start", arg != NULL ? arg : "85%,5%:10%x10%" );
+		
+		// Default factory
+		mlt_properties_set( properties, "factory", "fezzik" );
+
+#ifdef USE_MMX
+		//mlt_properties_set_int( properties, "_MMX", composite_have_mmx() );
+#endif
 	}
 	return this;
 }
-