*/
#include "transition_composite.h"
-#include <framework/mlt_frame.h>
+#include <framework/mlt.h>
#include <stdio.h>
#include <stdlib.h>
+#include <ctype.h>
+#include <string.h>
+#include <math.h>
-/** Composition class.
+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
+ int nh; // normalised height
+ int sw; // scaled width, not including consumer scale based upon w/nw
+ int sh; // scaled height, not including consumer scale based upon h/nh
+ float x;
+ float y;
+ float w;
+ float h;
+ int halign; // horizontal alignment: 0=left, 1=center, 2=right
+ int valign; // vertical alignment: 0=top, 1=middle, 2=bottom
+ int distort;
+ struct geometry_s *next;
+};
+
+/** Parse a value from a geometry string.
*/
-typedef struct
+static float parse_value( char **ptr, int normalisation, char delim, float defaults )
{
- struct mlt_transition_s parent;
+ float value = defaults;
+
+ if ( *ptr != NULL && **ptr != '\0' )
+ {
+ char *end = NULL;
+ value = strtod( *ptr, &end );
+ if ( end != NULL )
+ {
+ if ( *end == '%' )
+ value = ( value / 100.0 ) * normalisation;
+ while ( *end == delim || *end == '%' )
+ end ++;
+ }
+ *ptr = end;
+ }
+
+ return value;
}
-transition_composite;
-/** Get the image.
+/** Parse a geometry property string with the syntax X,Y:WxH:MIX. Any value can be
+ expressed as a percentage by appending a % after the value, otherwise values are
+ assumed to be relative to the normalised dimensions of the consumer.
+*/
+
+static void geometry_parse( struct geometry_s *geometry, struct geometry_s *defaults, char *property, int nw, int nh )
+{
+ // Assign normalised width and height
+ geometry->nw = nw;
+ geometry->nh = nh;
+
+ // Assign from defaults if available
+ if ( defaults != NULL )
+ {
+ geometry->x = defaults->x;
+ geometry->y = defaults->y;
+ geometry->w = geometry->sw = defaults->w;
+ geometry->h = geometry->sh = defaults->h;
+ geometry->distort = defaults->distort;
+ geometry->mix = defaults->mix;
+ defaults->next = geometry;
+ }
+ else
+ {
+ geometry->mix = 100;
+ }
+
+ // Parse the geomtry string
+ if ( property != NULL && strcmp( property, "" ) )
+ {
+ char *ptr = property;
+ geometry->x = parse_value( &ptr, nw, ',', geometry->x );
+ geometry->y = parse_value( &ptr, nh, ':', geometry->y );
+ geometry->w = geometry->sw = parse_value( &ptr, nw, 'x', geometry->w );
+ geometry->h = geometry->sh = parse_value( &ptr, nh, ':', geometry->h );
+ if ( *ptr == '!' )
+ {
+ geometry->distort = 1;
+ ptr ++;
+ if ( *ptr == ':' )
+ ptr ++;
+ }
+ geometry->mix = parse_value( &ptr, 100, ' ', geometry->mix );
+ }
+}
+
+/** Calculate real geometry.
+*/
+
+static void geometry_calculate( struct geometry_s *output, struct geometry_s *in, float position )
+{
+ // Search in for position
+ struct geometry_s *out = in->next;
+
+ if ( position >= 1.0 )
+ {
+ int section = floor( position );
+ position -= section;
+ if ( section % 2 == 1 )
+ position = 1.0 - position;
+ }
+
+ while ( out->next != NULL )
+ {
+ if ( position >= in->position && position < out->position )
+ break;
+
+ in = out;
+ out = in->next;
+ }
+
+ position = ( position - in->position ) / ( out->position - in->position );
+
+ // Calculate this frames geometry
+ 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;
+ }
+}
+
+static void transition_destroy_keys( void *arg )
+{
+ struct geometry_s *ptr = arg;
+ struct geometry_s *next = NULL;
+
+ while ( ptr != NULL )
+ {
+ next = ptr->next;
+ free( ptr );
+ ptr = next;
+ }
+}
+
+static struct geometry_s *transition_parse_keys( mlt_transition this, int normalised_width, int normalised_height )
+{
+ // Loop variable for property interrogation
+ int i = 0;
+
+ // Get the properties of the transition
+ mlt_properties properties = mlt_transition_properties( this );
+
+ // Get the in and out position
+ mlt_position in = mlt_transition_get_in( this );
+ mlt_position out = mlt_transition_get_out( this );
+
+ // Create the start
+ struct geometry_s *start = calloc( 1, sizeof( struct geometry_s ) );
+
+ // Create the end (we always need two entries)
+ struct geometry_s *end = calloc( 1, sizeof( struct geometry_s ) );
+
+ // 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 ++ )
+ {
+ // 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;
+}
+
+/** Parse the alignment properties into the geometry.
+*/
+
+static int alignment_parse( char* align )
+{
+ int ret = 0;
+
+ if ( align == NULL );
+ else if ( isdigit( align[ 0 ] ) )
+ ret = atoi( align );
+ else if ( align[ 0 ] == 'c' || align[ 0 ] == 'm' )
+ ret = 1;
+ else if ( align[ 0 ] == 'r' || align[ 0 ] == 'b' )
+ ret = 2;
+
+ return ret;
+}
+
+/** Adjust position according to scaled size and alignment properties.
+*/
+
+static void alignment_calculate( struct geometry_s *geometry )
+{
+ geometry->x += ( geometry->w - geometry->sw ) * geometry->halign / 2;
+ geometry->y += ( geometry->h - geometry->sh ) * geometry->valign;
+}
+
+/** Calculate the position for this 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 );
+
+ // Now do the calcs
+ return ( float )( position - in ) / ( float )( out - in + 1 );
+}
+
+/** Calculate the field delta for this frame - position between two frames.
+*/
+
+static inline float delta_calculate( mlt_transition this, mlt_frame frame )
+{
+ // 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 of the 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 );
+ float y = ( float )( position + 1 - in ) / ( float )( out - in + 1 );
+
+ return ( y - x ) / 2.0;
+}
+
+static int get_value( mlt_properties properties, char *preferred, char *fallback )
+{
+ int value = mlt_properties_get_int( properties, preferred );
+ if ( value == 0 )
+ value = mlt_properties_get_int( properties, 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, 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;
+ 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;
+ int uneven = ( x & 1 );
+
+ // optimization points - no work to do
+ if ( width_src <= 0 || height_src <= 0 )
+ return ret;
+
+ if ( ( x < 0 && -x >= width_src ) || ( y < 0 && -y >= height_src ) )
+ return ret;
+
+ // crop overlay off the left edge of frame
+ if ( x < 0 )
+ {
+ x_src = -x;
+ width_src -= x_src;
+ x = 0;
+ }
+
+ // crop overlay beyond right edge of frame
+ if ( x + width_src > width_dest )
+ width_src = width_dest - x;
+
+ // crop overlay off the top edge of the frame
+ if ( y < 0 )
+ {
+ y_src = -y;
+ height_src -= y_src;
+ y = 0;
+ }
+
+ // crop overlay below bottom edge of frame
+ if ( y + height_src > height_dest )
+ height_src = height_dest - y;
+
+ // offset pointer into overlay buffer based on cropping
+ p_src += x_src * bpp + y_src * stride_src;
+
+ // offset pointer into frame buffer based upon positive coordinates only!
+ p_dest += ( x < 0 ? 0 : x ) * bpp + ( y < 0 ? 0 : y ) * stride_dest;
+
+ // offset pointer into alpha channel based upon cropping
+ 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).
+ // 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
+ p_dest -= stride_dest;
+ }
+
+ // On the second field, use the other lines from b_frame
+ if ( field == 1 )
+ {
+ p_src += stride_src;
+ if ( p_alpha )
+ p_alpha += stride_src / bpp;
+ height_src--;
+ }
+
+ stride_src *= step;
+ stride_dest *= step;
+ int alpha_stride = stride_src / bpp;
+
+ if ( uneven )
+ p_src -= 2;
+
+ // now do the compositing only to cropped extents
+ if ( line_fn != NULL )
+ {
+ for ( i = 0; i < height_src; i += step )
+ {
+ 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;
+ }
+ }
+
+ return ret;
+}
+
+
+/** Scale 16bit greyscale luma map using nearest neighbor.
*/
-static int transition_get_image( mlt_frame this, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
+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.
+*/
+
+static int get_b_frame_image( mlt_transition this, mlt_frame b_frame, uint8_t **image, int *width, int *height, struct geometry_s *geometry )
+{
+ int ret = 0;
+ 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 );
+
+ if ( mlt_properties_get( properties, "distort" ) == NULL && geometry->distort == 0 )
+ {
+ // Adjust b_frame pixel aspect
+ int normalised_width = geometry->w;
+ int normalised_height = geometry->h;
+ int real_width = get_value( b_props, "real_width", "width" );
+ 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 = input_ar / output_ar * real_width;
+ int scaled_height = real_height;
+
+ // Now ensure that our images fit in the normalised frame
+ if ( scaled_width > normalised_width )
+ {
+ scaled_height = scaled_height * normalised_width / scaled_width;
+ scaled_width = normalised_width;
+ }
+ if ( scaled_height > normalised_height )
+ {
+ scaled_width = scaled_width * normalised_height / scaled_height;
+ scaled_height = normalised_height;
+ }
+
+ // Now apply the fill
+ // TODO: Should combine fill/distort in one property
+ if ( mlt_properties_get( properties, "fill" ) != NULL )
+ {
+ scaled_width = ( geometry->w / scaled_width ) * scaled_width;
+ scaled_height = ( geometry->h / scaled_height ) * scaled_height;
+ }
+
+ // Save the new scaled dimensions
+ 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 );
+
+ // Adjust to consumer scale
+ int x = geometry->x * *width / geometry->nw;
+ int y = geometry->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;
+}
+
+
+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 );
+
+ // Get the properties from the frame
+ mlt_properties a_props = mlt_frame_properties( a_frame );
+
+ // Structures for geometry
+ struct geometry_s *start = mlt_properties_get_data( properties, "geometries", NULL );
+
+ // Now parse the geometries
+ if ( start == NULL || mlt_properties_get_int( properties, "refresh" ) )
+ {
+ // 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
+ geometry_calculate( result, start, position );
+
+ // Now parse the alignment
+ result->halign = alignment_parse( mlt_properties_get( properties, "halign" ) );
+ result->valign = alignment_parse( mlt_properties_get( properties, "valign" ) );
+
+ return start;
+}
+
+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( this );
+ 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 position
+ float position = position_calculate( this, frame_position );
+
+ // Destination image
+ uint8_t *dest = NULL;
+
+ // Get the image and dimensions
+ uint8_t *image = mlt_properties_get_data( a_props, "image", NULL );
+ int width = mlt_properties_get_int( a_props, "width" );
+ int height = mlt_properties_get_int( a_props, "height" );
+
+ // Pointers for copy operation
+ uint8_t *p;
+ uint8_t *q;
+ uint8_t *r;
+
+ // Corrdinates
+ int w = 0;
+ int h = 0;
+ int x = 0;
+ int y = 0;
+
+ // Will need to know region to copy
+ struct geometry_s result;
+
+ // Calculate the region now
+ composite_calculate( &result, this, a_frame, position );
+
+ // Need to scale down to actual dimensions
+ x = result.x * width / result.nw ;
+ y = result.y * 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 = ( x | 1 ) ^ 1;
+ w = ( w | 1 ) ^ 1;
+
+ // Now we need to create a new destination image
+ dest = mlt_pool_alloc( w * h * 2 );
+
+ // Copy the region of the image
+ p = image + y * width * 2 + x * 2;
+ q = dest;
+ r = dest + w * h * 2;
+
+ while ( q < r )
+ {
+ inline_memcpy( q, p, w * 2 );
+ q += w * 2;
+ p += width * 2;
+ }
+
+ // Assign to the new frame
+ mlt_properties_set_data( b_props, "image", dest, w * h * 2, mlt_pool_release, NULL );
+ 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;
+}
+
+/** Get the image.
+*/
+
+static int transition_get_image( mlt_frame a_frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
+{
// Get the b frame from the stack
- mlt_frame b_frame = mlt_frame_pop_frame( this );
+ mlt_frame b_frame = mlt_frame_pop_frame( a_frame );
+
+ // 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 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 );
+
// Get the properties of the b frame
mlt_properties b_props = mlt_frame_properties( b_frame );
- // Arbitrary composite defaults
- int x = 0;
- int y = 0;
- double mix = 1.0;
+ // Structures for geometry
+ struct geometry_s result;
- // Override from b frame properties if provided
- if ( mlt_properties_get( b_props, "x" ) != NULL )
- x = mlt_properties_get_int( b_props, "x" );
- if ( mlt_properties_get( b_props, "y" ) != NULL )
- y = mlt_properties_get_int( b_props, "y" );
- if ( mlt_properties_get( b_props, "mix" ) != NULL )
- mix = mlt_properties_get_double( b_props, "mix" );
+ // Calculate the position
+ float position = mlt_properties_get_double( b_props, "relative_position" );
+ float delta = delta_calculate( this, a_frame );
- // Composite the b_frame on the a_frame
- mlt_frame_composite_yuv( this, b_frame, x, y, mix );
+ // 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;
- // Extract the a_frame image info
- *width = mlt_properties_get_int( a_props, "width" );
- *height = mlt_properties_get_int( a_props, "height" );
- *image = mlt_properties_get_data( a_props, "image", NULL );
- }
- else if ( a_props != NULL )
- {
- // Extract the a_frame image info
- *width = mlt_properties_get_int( a_props, "width" );
- *height = mlt_properties_get_int( a_props, "height" );
- *image = mlt_properties_get_data( a_props, "image", NULL );
+ // 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" ) );
+
+ // Get the image from the b frame
+ uint8_t *image_b = NULL;
+ int width_b = *width;
+ int height_b = *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;
+ uint8_t *alpha = mlt_frame_get_alpha_mask( b_frame );
+ 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;
+ composite_line_fn line_fn = NULL;
+
+ for ( field = 0; field < ( progressive ? 1 : 2 ); field++ )
+ {
+ // Assume lower field (0) first
+ float field_position = position + field * delta;
+
+ // Do the calculation if we need to
+ geometry_calculate( &result, start, field_position );
+
+ // Align
+ 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 );
+ }
+ }
}
return 0;
static mlt_frame composite_process( mlt_transition this, mlt_frame a_frame, mlt_frame b_frame )
{
- mlt_frame_push_get_image( a_frame, transition_get_image );
- mlt_frame_push_frame( a_frame, b_frame );
-
- // Propogate the transition properties to the b frame
- mlt_properties properties = mlt_transition_properties( this );
- mlt_properties b_props = mlt_frame_properties( b_frame );
- if ( mlt_properties_get( properties, "x" ) != NULL )
- mlt_properties_set_int( b_props, "x", mlt_properties_get_int( properties, "x" ) );
- if ( mlt_properties_get( properties, "y" ) != NULL )
- mlt_properties_set_int( b_props, "y", mlt_properties_get_int( properties, "y" ) );
- if ( mlt_properties_get( properties, "mix" ) != NULL )
- mlt_properties_set_double( b_props, "mix", mlt_properties_get_double( properties, "mix" ) );
+ // 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, mlt_frame_get_position( a_frame ) ) );
+
+ mlt_frame_push_service( a_frame, this );
+ mlt_frame_push_frame( a_frame, b_frame );
+ mlt_frame_push_get_image( a_frame, transition_get_image );
return a_frame;
}
/** Constructor for the filter.
*/
-mlt_transition transition_composite_init( void *arg )
+mlt_transition transition_composite_init( char *arg )
{
- transition_composite *this = calloc( sizeof( transition_composite ), 1 );
- if ( this != NULL )
+ mlt_transition this = calloc( sizeof( struct mlt_transition_s ), 1 );
+ if ( this != NULL && mlt_transition_init( this, NULL ) == 0 )
{
- mlt_transition transition = &this->parent;
- mlt_transition_init( transition, this );
- transition->process = composite_process;
- return &this->parent;
+ mlt_properties properties = mlt_transition_properties( this );
+
+ this->process = composite_process;
+
+ // 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 NULL;
+ return this;
}
-
projects / mlt / blobdiff