New geometry specification
[melted] / src / modules / core / transition_composite.c
index df7fab1..92add8f 100644 (file)
@@ -19,7 +19,7 @@
  */
 
 #include "transition_composite.h"
-#include <framework/mlt_frame.h>
+#include <framework/mlt.h>
 
 #include <stdio.h>
 #include <stdlib.h>
 #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
@@ -146,23 +155,31 @@ 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->sw = output->w;
-       output->sh = output->h;
-       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 = rint( in->x + ( out->x - in->x ) * position + 0.5 );
+               output->y = rint( in->y + ( out->y - in->y ) * position + 0.5 );
+               output->w = rint( in->w + ( out->w - in->w ) * position + 0.5 );
+               output->h = rint( in->h + ( out->h - in->h ) * position + 0.5 );
+               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;
+       }
 }
 
-void transition_destroy_keys( void *arg )
+static void transition_destroy_keys( void *arg )
 {
        struct geometry_s *ptr = arg;
        struct geometry_s *next = NULL;
@@ -181,7 +198,7 @@ static struct geometry_s *transition_parse_keys( mlt_transition this,  int norma
        int i = 0;
 
        // Get the properties of the transition
-       mlt_properties properties = mlt_transition_properties( this );
+       mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
 
        // Get the in and out position
        mlt_position in = mlt_transition_get_in( this );
@@ -196,27 +213,48 @@ static struct geometry_s *transition_parse_keys( mlt_transition this,  int norma
        // Pointer
        struct geometry_s *ptr = start;
 
-       // Parse the start property
-       geometry_parse( start, NULL, mlt_properties_get( properties, "start" ), normalised_width, normalised_height );
-
-       // Parse the keys in between
-       for ( i = 0; i < mlt_properties_count( properties ); i ++ )
+       // Check if we're using the new style geometry
+       if ( mlt_properties_get( properties, "geometry" ) )
        {
-               // Get the name of the property
-               char *name = mlt_properties_get_name( properties, i );
+               // Sundry vars
+               int i;
+               int frame = 0;
 
-               // Check that it's valid
-               if ( !strncmp( name, "key[", 4 ) )
+               // Obtain the geometry data - this is presented in the form:
+               // x,y:WxH[!][:mix][;f=x,y:WxH[!][:mix]]*
+               char *data = mlt_properties_get( properties, "geometry" );
+
+               // Split the data on the ; to seperate the values
+               mlt_tokeniser tokens = mlt_tokeniser_init( );
+               mlt_tokeniser_parse_new( tokens, data, ";" );
+
+               // Parse the first entry
+               geometry_parse( start, NULL, mlt_tokeniser_get_string( tokens, 0 ), normalised_width, normalised_height );
+
+               // Iterate through the remainder
+               for ( i = 1; i < mlt_tokeniser_count( tokens ); i ++ )
                {
-                       // Get the value of the property
-                       char *value = mlt_properties_get_value( properties, i );
+                       // Get the current value
+                       char *value = mlt_tokeniser_get_string( tokens, i );
 
-                       // Determine the frame number
-                       int frame = atoi( name + 4 );
+                       // Used to determine the position
+                       float position = 0;
+
+                       // Determine the position of the / delimiter
+                       char *p = strchr( value, '=' );
+
+                       // Ensure that it has a frame and extract that value
+                       if ( p )
+                       {
+                               frame = atoi( value );
+                               value = p + 1;
+                       }
+                       else
+                       {
+                               fprintf( stderr, "Malformed geometry - no frame in %s (%d)\n", value, i );
+                       }
 
                        // Determine the position
-                       float position = 0;
-                       
                        if ( frame >= 0 && frame < ( out - in ) )
                                position = ( float )frame / ( float )( out - in + 1 );
                        else if ( frame < 0 && - frame < ( out - in ) )
@@ -231,29 +269,87 @@ 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
                                ptr = temp;
                        }
-                       else
-                       {
-                               fprintf( stderr, "Key out of order - skipping %s\n", name );
-                       }
                }
+
+               // Close the tokens
+               mlt_tokeniser_close( tokens );
+
+               // Parse the end
+               geometry_parse( end, ptr, NULL, normalised_width, normalised_height );
+               if ( out > 0 )
+                       end->position = ( float )( out - in ) / ( float )( out - in + 1 );
+               else
+                       end->position = 1;
        }
-       
-       // Parse the end
-       geometry_parse( end, ptr, mlt_properties_get( properties, "end" ), normalised_width, normalised_height );
-       if ( out > 0 )
-               end->position = ( float )( out - in ) / ( float )( out - in + 1 );
        else
-               end->position = 1;
+       {
+               // DEPRECATED: Multiple keys for geometry information is inefficient and too rigid for 
+               // practical use
+
+               // Parse the start property
+               geometry_parse( start, NULL, mlt_properties_get( properties, "start" ), normalised_width, normalised_height );
 
-       // Assign to properties to ensure we get destroyed
-       mlt_properties_set_data( properties, "geometries", start, 0, transition_destroy_keys, NULL );
+               // Parse the keys in between
+               for ( i = 0; i < mlt_properties_count( properties ); i ++ )
+               {
+                       // Get the name of the property
+                       char *name = mlt_properties_get_name( properties, i );
+       
+                       // Check that it's valid
+                       if ( !strncmp( name, "key[", 4 ) )
+                       {
+                               // Get the value of the property
+                               char *value = mlt_properties_get_value( properties, i );
+       
+                               // Determine the frame number
+                               int frame = atoi( name + 4 );
+       
+                               // Determine the position
+                               float position = 0;
+                               
+                               if ( frame >= 0 && frame < ( out - in ) )
+                                       position = ( float )frame / ( float )( out - in + 1 );
+                               else if ( frame < 0 && - frame < ( out - in ) )
+                                       position = ( float )( out - in + frame ) / ( float )( out - in + 1 );
+       
+                               // For now, we'll exclude all keys received out of order
+                               if ( position > ptr->position )
+                               {
+                                       // Create a new geometry
+                                       struct geometry_s *temp = calloc( 1, sizeof( struct geometry_s ) );
+       
+                                       // Parse and add to the list
+                                       geometry_parse( temp, ptr, value, normalised_width, normalised_height );
+       
+                                       // Assign the position and frame
+                                       temp->frame = frame;
+                                       temp->position = position;
+       
+                                       // Allow the next to be appended after this one
+                                       ptr = temp;
+                               }
+                               else
+                               {
+                                       fprintf( stderr, "Key out of order - skipping %s\n", name );
+                               }
+                       }
+               }
 
+               // Parse the end
+               geometry_parse( end, ptr, mlt_properties_get( properties, "end" ), normalised_width, normalised_height );
+               if ( out > 0 )
+                       end->position = ( float )( out - in ) / ( float )( out - in + 1 );
+               else
+                       end->position = 1;
+       }
+       
        return start;
 }
 
@@ -287,15 +383,12 @@ 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 );
 }
@@ -310,7 +403,8 @@ 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 );
@@ -327,24 +421,205 @@ 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;
-
-       x &= 0xfffffffe;
-       width_src &= 0xfffffffe;
+       int uneven = ( x & 1 );
 
        // optimization points - no work to do
        if ( width_src <= 0 || height_src <= 0 )
@@ -362,7 +637,7 @@ 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
@@ -370,9 +645,11 @@ static int composite_yuv( uint8_t *p_dest, int width_dest, int height_dest, int
        {
                y_src = -y;
                height_src -= y_src;
+               y = 0;
        }
+       
        // 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
@@ -385,6 +662,10 @@ 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).
@@ -407,45 +688,176 @@ 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 ( uneven )
        {
-               p = p_src;
-               q = p_dest;
-               o = q;
-               z = p_alpha;
+               p_dest += 2;
+               width_src --;
+       }
 
-               for ( j = 0; j < width_src; j ++ )
+       // now do the compositing only to cropped extents
+       if ( line_fn != NULL )
+       {
+               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.
 */
 
@@ -455,10 +867,10 @@ static int get_b_frame_image( mlt_transition this, mlt_frame b_frame, uint8_t **
        mlt_image_format format = mlt_image_yuv422;
 
        // Get the properties objects
-       mlt_properties b_props = mlt_frame_properties( b_frame );
-       mlt_properties properties = mlt_transition_properties( this );
+       mlt_properties b_props = MLT_FRAME_PROPERTIES( b_frame );
+       mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
 
-       if ( mlt_properties_get( properties, "distort" ) == NULL && geometry->distort == 0 )
+       if ( mlt_properties_get( properties, "distort" ) == NULL && mlt_properties_get( b_props, "distort" ) == NULL && geometry->distort == 0 )
        {
                // Adjust b_frame pixel aspect
                int normalised_width = geometry->w;
@@ -467,13 +879,8 @@ 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 )
@@ -499,12 +906,18 @@ static int get_b_frame_image( mlt_transition this, mlt_frame b_frame, uint8_t **
                geometry->sw = scaled_width;
                geometry->sh = scaled_height;
        }
+       else
+       {
+               geometry->sw = geometry->w;
+               geometry->sh = geometry->h;
+       }
 
        // We want to ensure that we bypass resize now...
        mlt_properties_set( b_props, "distort", "true" );
 
        // Take into consideration alignment for optimisation
-       alignment_calculate( geometry );
+       if ( !mlt_properties_get_int( properties, "titles" ) )
+               alignment_calculate( geometry );
 
        // Adjust to consumer scale
        int x = geometry->x * *width / geometry->nw;
@@ -512,10 +925,10 @@ 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 = ( x | 1 ) ^ 1;
 
        // 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 ) )
@@ -527,35 +940,30 @@ static int get_b_frame_image( mlt_transition this, mlt_frame b_frame, uint8_t **
 }
 
 
-static uint8_t *transition_get_alpha_mask( mlt_frame this )
-{
-       // Obtain properties of frame
-       mlt_properties properties = mlt_frame_properties( this );
-
-       // Return the alpha mask
-       return mlt_properties_get_data( properties, "alpha", NULL );
-}
-
-struct geometry_s *composite_calculate( struct geometry_s *result, mlt_transition this, mlt_frame a_frame, float position )
+static struct geometry_s *composite_calculate( struct geometry_s *result, mlt_transition this, mlt_frame a_frame, float position )
 {
        // Get the properties from the transition
-       mlt_properties properties = mlt_transition_properties( this );
+       mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
 
        // Get the properties from the frame
-       mlt_properties a_props = mlt_frame_properties( a_frame );
+       mlt_properties a_props = MLT_FRAME_PROPERTIES( a_frame );
        
        // Structures for geometry
        struct geometry_s *start = mlt_properties_get_data( properties, "geometries", NULL );
 
+       // Obtain the normalised width and height from the a_frame
+       int normalised_width = mlt_properties_get_int( a_props, "normalised_width" );
+       int normalised_height = mlt_properties_get_int( a_props, "normalised_height" );
+
        // Now parse the geometries
-       if ( start == NULL )
+       if ( start == NULL || mlt_properties_get_int( properties, "refresh" ) || start->nw != normalised_width || start->nh != normalised_height )
        {
-               // Obtain the normalised width and height from the a_frame
-               int normalised_width = mlt_properties_get_int( a_props, "normalised_width" );
-               int normalised_height = mlt_properties_get_int( a_props, "normalised_height" );
-
                // Parse the transitions properties
                start = transition_parse_keys( this, normalised_width, normalised_height );
+
+               // Assign to properties to ensure we get destroyed
+               mlt_properties_set_data( properties, "geometries", start, 0, transition_destroy_keys, NULL );
+               mlt_properties_set_int( properties, "refresh", 0 );
        }
 
        // Do the calculation
@@ -568,19 +976,29 @@ 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 )
+static inline void inline_memcpy( uint8_t *dest, uint8_t *src, int length )
+{
+       uint8_t *end = src + length;
+       while ( src < end )
+       {
+               *dest ++ = *src ++;
+               *dest ++ = *src ++;
+       }
+}
+
+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( );
 
        // Get the properties of the a frame
-       mlt_properties a_props = mlt_frame_properties( a_frame );
+       mlt_properties a_props = MLT_FRAME_PROPERTIES( a_frame );
 
        // Get the properties of the b frame
-       mlt_properties b_props = mlt_frame_properties( b_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;
@@ -610,11 +1028,20 @@ mlt_frame composite_copy_region( mlt_transition this, mlt_frame a_frame )
        // Need to scale down to actual dimensions
        x = result.x * width / result.nw ;
        y = result.y * height / result.nh;
-       w = result.sw * width / result.nw;
-       h = result.sh * height / result.nh;
+       w = result.w * width / result.nw;
+       h = result.h * height / result.nh;
+
+       if ( y < 0 )
+       {
+               h = h + y;
+               y = 0;
+       }
+
+       if ( y + h > height )
+               h = height - y;
 
-       x &= 0xfffffffe;
-       w &= 0xfffffffe;
+       x = ( x | 1 ) ^ 1;
+       w = ( w | 1 ) ^ 1;
 
        // Now we need to create a new destination image
        dest = mlt_pool_alloc( w * h * 2 );
@@ -626,7 +1053,7 @@ mlt_frame composite_copy_region( mlt_transition this, mlt_frame a_frame )
 
        while ( q < r )
        {
-               memcpy( q, p, w * 2 );
+               inline_memcpy( q, p, w * 2 );
                q += w * 2;
                p += width * 2;
        }
@@ -636,6 +1063,10 @@ 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 );
+       mlt_properties_set( b_props, "distort", "true" );
+
        // Return the frame
        return b_frame;
 }
@@ -657,16 +1088,16 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
        // Get the image from the a frame
        mlt_frame_get_image( a_frame, image, format, width, height, 1 );
 
+       // Get the properties from the transition
+       mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
+
        if ( b_frame != NULL )
        {
                // Get the properties of the a frame
-               mlt_properties a_props = mlt_frame_properties( a_frame );
+               mlt_properties a_props = MLT_FRAME_PROPERTIES( a_frame );
 
                // Get the properties of the b frame
-               mlt_properties b_props = mlt_frame_properties( b_frame );
-
-               // Get the properties from the transition
-               mlt_properties properties = mlt_transition_properties( this );
+               mlt_properties b_props = MLT_FRAME_PROPERTIES( b_frame );
 
                // Structures for geometry
                struct geometry_s result;
@@ -678,26 +1109,60 @@ 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 );
 
-               // 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;
                int width_b = *width;
                int height_b = *height;
-               
+       
+               // Optimisation - no compositing required
+               if ( result.mix == 0 || ( result.w == 0 && result.h == 0 ) )
+                       return 0;
+
+               // Need to keep the width/height of the a_frame on the b_frame for titling
+               if ( mlt_properties_get( a_props, "dest_width" ) == NULL )
+               {
+                       mlt_properties_set_int( a_props, "dest_width", *width );
+                       mlt_properties_set_int( a_props, "dest_height", *height );
+                       mlt_properties_set_int( b_props, "dest_width", *width );
+                       mlt_properties_set_int( b_props, "dest_height", *height );
+               }
+               else
+               {
+                       mlt_properties_set_int( b_props, "dest_width", mlt_properties_get_int( a_props, "dest_width" ) );
+                       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" );
+               }
+
                if ( get_b_frame_image( this, b_frame, &image_b, &width_b, &height_b, &result ) == 0 )
                {
                        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" ) ||
-                                       mlt_properties_get_int( a_props, "consumer_progressive" ) ||
+                       int progressive = 
+                                       mlt_properties_get_int( a_props, "consumer_deinterlace" ) ||
                                        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;
+                       composite_line_fn line_fn = NULL;
 
                        for ( field = 0; field < ( progressive ? 1 : 2 ); field++ )
                        {
@@ -707,11 +1172,19 @@ static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_f
                                // Do the calculation if we need to
                                geometry_calculate( &result, start, field_position );
 
+                               if ( mlt_properties_get_int( properties, "titles" ) )
+                               {
+                                       result.nw = result.w = *width;
+                                       result.nh = result.h = *height;
+                                       result.sw = width_b;
+                                       result.sh = height_b;
+                               }
+
                                // Align
                                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 );
                        }
                }
        }
@@ -724,11 +1197,18 @@ 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;
 }
 
@@ -740,9 +1220,19 @@ 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;
 }
-