]> git.sesse.net Git - mlt/blobdiff - src/modules/core/transition_composite.c
src/framework/mlt_consumer.c
[mlt] / src / modules / core / transition_composite.c
index 6cc1055b85b297f558b52a5dc9310cdff7a9e161..5e5118b05aad1aecd341d13670f22b97c99f83ab 100644 (file)
@@ -27,7 +27,7 @@
 #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 );
+typedef void ( *composite_line_fn )( uint8_t *dest, uint8_t *src, int width_src, uint8_t *alpha, uint8_t *full_alpha, int weight, uint16_t *luma, int softness );
 
 /* mmx function declarations */
 #ifdef USE_MMX
@@ -74,14 +74,16 @@ static void geometry_calculate( mlt_transition this, struct geometry_s *output,
 {
        mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
        mlt_geometry geometry = mlt_properties_get_data( properties, "geometries", NULL );
+       int mirror_off = mlt_properties_get_int( properties, "mirror_off" );
+       int repeat_off = mlt_properties_get_int( properties, "repeat_off" );
        int length = mlt_geometry_get_length( geometry );
 
        // Allow wrapping
-       if ( position >= length && length != 0 )
+       if ( !repeat_off && position >= length && length != 0 )
        {
                int section = position / length;
                position -= section * length;
-               if ( section % 2 == 1 )
+               if ( !mirror_off && section % 2 == 1 )
                        position = length - position;
        }
 
@@ -103,12 +105,20 @@ static mlt_geometry transition_parse_keys( mlt_transition this, int normalised_w
        // Get the in and out position
        mlt_position in = mlt_transition_get_in( this );
        mlt_position out = mlt_transition_get_out( this );
+       int length = out - in + 1;
+       double cycle = mlt_properties_get_double( properties, "cycle" );
 
        // Get the new style geometry string
        char *property = mlt_properties_get( properties, "geometry" );
 
+       // Allow a geometry repeat cycle
+       if ( cycle >= 1 )
+               length = cycle;
+       else if ( cycle > 0 )
+               length *= cycle;
+
        // Parse the geometry if we have one
-       mlt_geometry_parse( geometry, property, out - in + 1, normalised_width, normalised_height );
+       mlt_geometry_parse( geometry, property, length, normalised_width, normalised_height );
 
        // Check if we're using the old style geometry
        if ( property == NULL )
@@ -371,7 +381,7 @@ static void luma_read_yuv422( uint8_t *image, uint16_t **map, int width, int hei
 */
 
 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 )
+void composite_line_yuv( uint8_t *dest, uint8_t *src, int width_src, uint8_t *alpha, uint8_t *full_alpha,  int weight, uint16_t *luma, int softness )
 {
        register int j;
        int a, mix;
@@ -379,19 +389,21 @@ void composite_line_yuv( uint8_t *dest, uint8_t *src, int width_src, uint8_t *al
        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;
+               mix = ( luma == NULL ) ? weight : smoothstep( luma[ j ], luma[ j ] + softness, weight + softness );
+               mix = ( mix * a ) >> 8;
                *dest = ( *src++ * mix + *dest * ( ( 1 << 16 ) - mix ) ) >> 16;
                dest++;
                *dest = ( *src++ * mix + *dest * ( ( 1 << 16 ) - mix ) ) >> 16;
                dest++;
+               if ( full_alpha && *full_alpha == 0 ) { *full_alpha = a; }
+               full_alpha ++;
        }
 }
 
 /** Composite function.
 */
 
-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 )
+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, uint8_t *full_alpha, struct geometry_s geometry, int field, uint16_t *p_luma, int32_t softness, composite_line_fn line_fn )
 {
        int ret = 0;
        int i;
@@ -448,6 +460,9 @@ static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, uint
        if ( p_alpha )
                p_alpha += x_src + y_src * stride_src / bpp;
 
+       if ( full_alpha )
+               full_alpha += x + y * stride_dest / bpp;
+
        // offset pointer into luma channel based upon cropping
        if ( p_luma )
                p_luma += x_src + y_src * stride_src / bpp;
@@ -458,7 +473,6 @@ static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, uint
        // field 1 = upper field and y should be even.
        if ( ( field > -1 ) && ( y % 2 == field ) )
        {
-               //fprintf( stderr, "field %d y %d\n", field, y );
                if ( ( field == 1 && y < height_dest - 1 ) || ( field == 0 && y == 0 ) )
                        p_dest += stride_dest;
                else
@@ -471,18 +485,22 @@ static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, uint
                p_src += stride_src;
                if ( p_alpha )
                        p_alpha += stride_src / bpp;
+               if ( full_alpha )
+                       full_alpha += stride_dest / bpp;
                height_src--;
        }
 
        stride_src *= step;
        stride_dest *= step;
        int alpha_stride = stride_src / bpp;
+       int full_alpha_stride = stride_dest / bpp;
 
        // Make sure than x and w are even
        if ( x_uneven )
        {
                p_src += 2;
                width_src --;
+               full_alpha ++;
        }
 
        // now do the compositing only to cropped extents
@@ -490,12 +508,14 @@ static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, uint
        {
                for ( i = 0; i < height_src; i += step )
                {
-                       line_fn( p_dest, p_src, width_src, p_alpha, weight, p_luma, softness );
+                       line_fn( p_dest, p_src, width_src, p_alpha, full_alpha, weight, p_luma, softness );
        
                        p_src += stride_src;
                        p_dest += stride_dest;
                        if ( p_alpha )
                                p_alpha += alpha_stride;
+                       if ( full_alpha )
+                               full_alpha += full_alpha_stride;
                        if ( p_luma )
                                p_luma += alpha_stride;
                }
@@ -504,12 +524,14 @@ static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, uint
        {
                for ( i = 0; i < height_src; i += step )
                {
-                       composite_line_yuv( p_dest, p_src, width_src, p_alpha, weight, p_luma, softness );
+                       composite_line_yuv( p_dest, p_src, width_src, p_alpha, full_alpha, weight, p_luma, softness );
        
                        p_src += stride_src;
                        p_dest += stride_dest;
                        if ( p_alpha )
                                p_alpha += alpha_stride;
+                       if ( full_alpha )
+                               full_alpha += full_alpha_stride;
                        if ( p_luma )
                                p_luma += alpha_stride;
                }
@@ -523,7 +545,7 @@ static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, uint
 */
 
 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 )
+scale_luma ( uint16_t *dest_buf, int dest_width, int dest_height, const uint16_t *src_buf, int src_width, int src_height, int invert )
 {
        register int i, j;
        register int x_step = ( src_width << 16 ) / dest_width;
@@ -537,7 +559,7 @@ scale_luma ( uint16_t *dest_buf, int dest_width, int dest_height, const uint16_t
                
                for ( j = 0; j < dest_width; j++ )
                {
-                       *dest_buf++ = src[ x >> 16 ];
+                       *dest_buf++ = src[ x >> 16 ] ^ invert;
                        x += x_step;
                }
                y += y_step;
@@ -550,15 +572,29 @@ static uint16_t* get_luma( mlt_properties properties, int width, int height )
        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 );
+       int invert = mlt_properties_get_int( properties, "luma_invert" );
        
        // If the filename property changed, reload the map
        char *resource = mlt_properties_get( properties, "luma" );
 
        char temp[ 512 ];
 
-       if ( strchr( resource, '%' ) )
+       if ( luma_width == 0 || luma_height == 0 )
+       {
+               luma_width = width;
+               luma_height = height;
+       }
+
+       if ( resource != NULL && strchr( resource, '%' ) )
        {
+               // TODO: Clean up quick and dirty compressed/existence check
+               FILE *test;
                sprintf( temp, "%s/lumas/%s/%s", mlt_factory_prefix( ), mlt_environment( "MLT_NORMALISATION" ), strchr( resource, '%' ) + 1 );
+               test = fopen( temp, "r" );
+               if ( test == NULL )
+                       strcat( temp, ".png" );
+               else
+                       fclose( test );
                resource = temp;
        }
 
@@ -571,7 +607,7 @@ static uint16_t* get_luma( mlt_properties properties, int width, int height )
                // Load the original luma once
                if ( orig_bitmap == NULL )
                {
-                       char *extension = extension = strrchr( resource, '.' );
+                       char *extension = strrchr( resource, '.' );
                        
                        // See if it is a PGM
                        if ( extension != NULL && strcmp( extension, ".pgm" ) == 0 )
@@ -643,7 +679,7 @@ static uint16_t* get_luma( mlt_properties properties, int width, int height )
                }
                // 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 );
+               scale_luma( luma_bitmap, width, height, orig_bitmap, luma_width, luma_height, invert * ( ( 1 << 16 ) - 1 ) );
 
                // Remember the scaled luma size to prevent unnecessary scaling
                mlt_properties_set_int( properties, "_luma.width", width );
@@ -665,7 +701,7 @@ static int get_b_frame_image( mlt_transition this, mlt_frame b_frame, uint8_t **
        mlt_properties b_props = MLT_FRAME_PROPERTIES( b_frame );
        mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
 
-       if ( mlt_properties_get( properties, "distort" ) == NULL && mlt_properties_get( b_props, "distort" ) == NULL && geometry->item.distort == 0 )
+       if ( mlt_properties_get_int( properties, "distort" ) == 0 && mlt_properties_get_int( b_props, "distort" ) == 0 && geometry->item.distort == 0 )
        {
                // Adjust b_frame pixel aspect
                int normalised_width = geometry->item.w;
@@ -674,6 +710,7 @@ 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" );
+               if ( input_ar == 0.0 ) input_ar = output_ar;
                int scaled_width = input_ar / output_ar * real_width;
                int scaled_height = real_height;
                        
@@ -689,12 +726,20 @@ static int get_b_frame_image( mlt_transition this, mlt_frame b_frame, uint8_t **
                        scaled_height = normalised_height;
                }
 
-               // Now apply the fill
-               // TODO: Should combine fill/distort in one property
-               if ( mlt_properties_get( properties, "fill" ) != NULL )
+               // Honour the fill request - this will scale the image to fill width or height while maintaining a/r
+               // ????: Shouln't this be the default behaviour?
+               if ( mlt_properties_get_int( properties, "fill" ) )
                {
-                       scaled_width = ( geometry->item.w / scaled_width ) * scaled_width;
-                       scaled_height = ( geometry->item.h / scaled_height ) * scaled_height;
+                       if ( scaled_height < normalised_height && scaled_width * normalised_height / scaled_height < normalised_width )
+                       {
+                               scaled_width = scaled_width * normalised_height / scaled_height;
+                               scaled_height = normalised_height;
+                       }
+                       else if ( scaled_width < normalised_width && scaled_height * normalised_width / scaled_width < normalised_height )
+                       {
+                               scaled_height = scaled_height * normalised_width / scaled_width;
+                               scaled_width = normalised_width;
+                       }
                }
 
                // Save the new scaled dimensions
@@ -708,30 +753,19 @@ static int get_b_frame_image( mlt_transition this, mlt_frame b_frame, uint8_t **
        }
 
        // We want to ensure that we bypass resize now...
-       mlt_properties_set( b_props, "distort", "true" );
+       mlt_properties_set_int( b_props, "distort", 1 );
 
        // Take into consideration alignment for optimisation
        if ( !mlt_properties_get_int( properties, "titles" ) )
                alignment_calculate( geometry );
 
        // Adjust to consumer scale
-       int x = geometry->item.x * *width / geometry->nw;
-       int y = geometry->item.y * *height / geometry->nh;
        *width = geometry->sw * *width / geometry->nw;
        *height = geometry->sh * *height / geometry->nh;
 
-       //x = ( x | 1 ) ^ 1;
-
-       // optimization points - no work to do
-       if ( *width < 1 || *height < 1 )
-               return 1;
-
-       if ( ( x < 0 && -x >= *width ) || ( y < 0 && -y >= *height ) )
-               return 1;
-
        ret = mlt_frame_get_image( b_frame, image, &format, width, height, 1 );
 
-       return ret;
+       return ret && image != NULL;
 }
 
 
@@ -762,6 +796,11 @@ static mlt_geometry composite_calculate( mlt_transition this, struct geometry_s
        else
        {
                int length = mlt_transition_get_out( this ) - mlt_transition_get_in( this ) + 1;
+               double cycle = mlt_properties_get_double( properties, "cycle" );
+               if ( cycle > 1 )
+                       length = cycle;
+               else if ( cycle > 0 )
+                       length *= cycle;
                mlt_geometry_refresh( start, mlt_properties_get( properties, "geometry" ), length, normalised_width, normalised_height );
        }
 
@@ -878,19 +917,22 @@ mlt_frame composite_copy_region( mlt_transition this, mlt_frame a_frame, mlt_pos
                x = 0;
        }
 
-       // Copy the region of the image
-       p = image + y * ss + x * 2;
-
-       while ( h -- )
+       if ( w > 0 && h > 0 )
        {
-               inline_memcpy( dest, p, w * 2 );
-               dest += ds;
-               p += ss;
+               // Copy the region of the image
+               p = image + y * ss + x * 2;
+
+               while ( h -- )
+               {
+                       inline_memcpy( dest, p, w * 2 );
+                       dest += ds;
+                       p += ss;
+               }
        }
 
        // Assign this position to the b frame
        mlt_frame_set_position( b_frame, frame_position );
-       mlt_properties_set( b_props, "distort", "true" );
+       mlt_properties_set_int( b_props, "distort", 1 );
 
        // Return the frame
        return b_frame;
@@ -907,15 +949,25 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
        // Get the transition from the a frame
        mlt_transition this = mlt_frame_pop_service( a_frame );
 
-       // This compositer is yuv422 only
-       *format = mlt_image_yuv422;
-
-       // Get the image from the a frame
-       mlt_frame_get_image( a_frame, image, format, width, height, 1 );
+       // Get in and out
+       int out = mlt_frame_pop_service_int( a_frame );
+       int in = mlt_frame_pop_service_int( a_frame );
 
        // Get the properties from the transition
        mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
 
+       // TODO: clean up always_active behaviour
+       if ( mlt_properties_get_int( properties, "always_active" ) )
+       {
+               mlt_events_block( properties, properties );
+               mlt_properties_set_int( properties, "in", in );
+               mlt_properties_set_int( properties, "out", out );
+               mlt_events_unblock( properties, properties );
+       }
+
+       // This compositer is yuv422 only
+       *format = mlt_image_yuv422;
+
        if ( b_frame != NULL )
        {
                // Get the properties of the a frame
@@ -939,6 +991,26 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
                // Do the calculation
                composite_calculate( this, &result, a_frame, position );
 
+               // 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_deinterlace", mlt_properties_get_double( a_props, "consumer_deinterlace" ) );
+               mlt_properties_set_double( b_props, "consumer_aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
+               mlt_properties_set_int( b_props, "normalised_width", mlt_properties_get_double( a_props, "normalised_width" ) );
+               mlt_properties_set_int( b_props, "normalised_height", mlt_properties_get_double( a_props, "normalised_height" ) );
+
+               // TODO: Dangerous/temporary optimisation - if nothing to do, then do nothing
+               if ( mlt_properties_get_int( properties, "no_alpha" ) && 
+                        result.item.x == 0 && result.item.y == 0 && result.item.w == *width && result.item.h == *height && result.item.mix == 100 )
+               {
+                       mlt_frame_get_image( b_frame, image, format, width, height, 1 );
+                       if ( !mlt_frame_is_test_card( a_frame ) )
+                               mlt_frame_replace_image( a_frame, *image, *format, *width, *height );
+                       return 0;
+               }
+
+               // Get the image from the a frame
+               mlt_frame_get_image( a_frame, image, format, width, height, 1 );
+
                // Optimisation - no compositing required
                if ( result.item.mix == 0 || ( result.item.w == 0 && result.item.h == 0 ) )
                        return 0;
@@ -957,19 +1029,11 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
                        mlt_properties_set_int( b_props, "dest_height", mlt_properties_get_int( a_props, "dest_height" ) );
                }
 
-               // 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_deinterlace", mlt_properties_get_double( a_props, "consumer_deinterlace" ) );
-               mlt_properties_set_double( b_props, "consumer_aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
-               mlt_properties_set_int( b_props, "normalised_width", mlt_properties_get_double( a_props, "normalised_width" ) );
-               mlt_properties_set_int( b_props, "normalised_height", mlt_properties_get_double( a_props, "normalised_height" ) );
-
                // Special case for titling...
                if ( mlt_properties_get_int( properties, "titles" ) )
                {
                        if ( mlt_properties_get( b_props, "rescale.interp" ) == NULL )
                                mlt_properties_set( b_props, "rescale.interp", "hyper" );
-                       mlt_properties_set( properties, "fill", NULL );
                        width_b = mlt_properties_get_int( a_props, "dest_width" );
                        height_b = mlt_properties_get_int( a_props, "dest_height" );
                }
@@ -979,6 +1043,7 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
                        uint8_t *dest = *image;
                        uint8_t *src = image_b;
                        uint8_t *alpha = mlt_frame_get_alpha_mask( b_frame );
+                       uint8_t *full_alpha = mlt_frame_get_alpha_mask( a_frame );
                        int progressive = 
                                        mlt_properties_get_int( a_props, "consumer_deinterlace" ) ||
                                        mlt_properties_get_int( properties, "progressive" );
@@ -989,6 +1054,14 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
                        //composite_line_fn line_fn = mlt_properties_get_int( properties, "_MMX" ) ? composite_line_yuv_mmx : NULL;
                        composite_line_fn line_fn = NULL;
 
+                       if ( full_alpha == NULL )
+                       {
+                               full_alpha = mlt_pool_alloc( *width * *height );
+                               memset( full_alpha, 255, *width * *height );
+                               a_frame->get_alpha_mask = NULL;
+                               mlt_properties_set_data( a_props, "alpha", full_alpha, 0, mlt_pool_release, NULL );
+                       }
+
                        for ( field = 0; field < ( progressive ? 1 : 2 ); field++ )
                        {
                                // Assume lower field (0) first
@@ -999,8 +1072,10 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
 
                                if ( mlt_properties_get_int( properties, "titles" ) )
                                {
-                                       result.nw = result.item.w = *width;
-                                       result.nh = result.item.h = *height;
+                                       result.item.w = *width * ( result.item.w / result.nw );
+                                       result.nw = result.item.w;
+                                       result.item.h = *height * ( result.item.h / result.nh );
+                                       result.nh = *height;
                                        result.sw = width_b;
                                        result.sh = height_b;
                                }
@@ -1009,10 +1084,14 @@ 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, src, width_b, height_b, alpha, result, progressive ? -1 : field, luma_bitmap, luma_softness, line_fn );
+                               composite_yuv( dest, *width, *height, src, width_b, height_b, alpha, full_alpha, result, progressive ? -1 : field, luma_bitmap, luma_softness, line_fn );
                        }
                }
        }
+       else
+       {
+               mlt_frame_get_image( a_frame, image, format, width, height, 1 );
+       }
 
        return 0;
 }
@@ -1025,11 +1104,28 @@ static mlt_frame composite_process( mlt_transition this, mlt_frame a_frame, mlt_
        // 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 ) );
+       // UGH - this is a TODO - find a more reliable means of obtaining in/out for the always_active case
+       if ( mlt_properties_get_int(  MLT_TRANSITION_PROPERTIES( this ), "always_active" ) == 0 )
+       {
+               mlt_frame_push_service_int( a_frame, mlt_properties_get_int( MLT_TRANSITION_PROPERTIES( this ), "in" ) );
+               mlt_frame_push_service_int( a_frame, mlt_properties_get_int( MLT_TRANSITION_PROPERTIES( this ), "out" ) );
 
-       // Propogate the transition properties to the b frame
-       mlt_properties_set_double( MLT_FRAME_PROPERTIES( b_frame ), "relative_position", position_calculate( this, mlt_frame_get_position( a_frame ) ) );
+               // 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, mlt_frame_get_position( a_frame ) ) );
+       }
+       else
+       {
+               mlt_properties props = mlt_properties_get_data( MLT_FRAME_PROPERTIES( b_frame ), "_producer", NULL );
+               mlt_frame_push_service_int( a_frame, mlt_properties_get_int( props, "in" ) );
+               mlt_frame_push_service_int( a_frame, mlt_properties_get_int( props, "out" ) );
+               mlt_properties_set_int( MLT_FRAME_PROPERTIES( b_frame ), "relative_position", mlt_properties_get_int( props, "_frame" ) - mlt_properties_get_int( props, "in" ) );
+
+               // Assign the current position to the name
+               mlt_properties_set_position( MLT_FRAME_PROPERTIES( a_frame ), name, mlt_properties_get_position( MLT_FRAME_PROPERTIES( b_frame ), "relative_position" ) );
+       }
        
        mlt_frame_push_service( a_frame, this );
        mlt_frame_push_frame( a_frame, b_frame );
@@ -1050,11 +1146,14 @@ mlt_transition transition_composite_init( char *arg )
                this->process = composite_process;
                
                // Default starting motion and zoom
-               mlt_properties_set( properties, "start", arg != NULL ? arg : "85%,5%:10%x10%" );
+               mlt_properties_set( properties, "start", arg != NULL ? arg : "0,0:100%x100%" );
                
                // Default factory
                mlt_properties_set( properties, "factory", "fezzik" );
 
+               // Inform apps and framework that this is a video only transition
+               mlt_properties_set_int( properties, "_transition_type", 1 );
+
 #ifdef USE_MMX
                //mlt_properties_set_int( properties, "_MMX", composite_have_mmx() );
 #endif