* Copyright (C) 2003-2004 Ushodaya Enterprises Limited
* Author: Dan Dennedy <dan@dennedy.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
*
- * This program is distributed in the hope that it will be useful,
+ * This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
*
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software Foundation,
- * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#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>
+
+typedef void ( *composite_line_fn )( uint8_t *dest, uint8_t *src, int width_src, uint8_t *alpha_b, uint8_t *alpha_a, int weight, uint16_t *luma, int softness, uint32_t step );
/** Geometry struct.
*/
struct geometry_s
{
- int nw;
- int nh;
- float x;
- float y;
- float w;
- float h;
- float mix;
+ struct mlt_geometry_item_s item;
+ 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
+ int halign; // horizontal alignment: 0=left, 1=center, 2=right
+ int valign; // vertical alignment: 0=top, 1=middle, 2=bottom
+ int x_src;
+ int y_src;
};
-/** Parse a value from a geometry string.
+/** Parse the alignment properties into the geometry.
*/
-static float parse_value( char **ptr, int normalisation, char delim, float defaults )
+static int alignment_parse( char* align )
{
- 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;
- }
+ 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 value;
+ return ret;
}
-/** 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.
+/** Calculate real geometry.
*/
-static void geometry_parse( struct geometry_s *geometry, struct geometry_s *defaults, char *property, int nw, int nh )
+static void geometry_calculate( mlt_transition self, struct geometry_s *output, double position )
{
- // Assign normalised width and height
- geometry->nw = nw;
- geometry->nh = nh;
-
- // Assign from defaults if available
- if ( defaults != NULL )
+ mlt_properties properties = MLT_TRANSITION_PROPERTIES( self );
+ 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 ( !repeat_off && position >= length && length != 0 )
{
- geometry->x = defaults->x;
- geometry->y = defaults->y;
- geometry->w = defaults->w;
- geometry->h = defaults->h;
- geometry->mix = defaults->mix;
- }
- else
- {
- geometry->mix = 100;
+ int section = position / length;
+ position -= section * length;
+ if ( !mirror_off && section % 2 == 1 )
+ position = length - position;
}
- // Parse the geomtry string
- if ( property != NULL )
+ // Fetch the key for the position
+ mlt_geometry_fetch( geometry, &output->item, position );
+}
+
+static mlt_geometry transition_parse_keys( mlt_transition self, 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( self );
+
+ // Create an empty geometries object
+ mlt_geometry geometry = mlt_geometry_init( );
+
+ // Get the duration
+ mlt_position length = mlt_transition_get_length( self );
+ 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, length, normalised_width, normalised_height );
+
+ // Check if we're using the old style geometry
+ if ( property == NULL )
{
- char *ptr = property;
- geometry->x = parse_value( &ptr, nw, ',', geometry->x );
- geometry->y = parse_value( &ptr, nh, ':', geometry->y );
- geometry->w = parse_value( &ptr, nw, 'x', geometry->w );
- geometry->h = parse_value( &ptr, nh, ':', geometry->h );
- geometry->mix = parse_value( &ptr, 100, ' ', geometry->mix );
+ // DEPRECATED: Multiple keys for geometry information is inefficient and too rigid for
+ // practical use - while deprecated, it has been slightly extended too - keys can now
+ // be specified out of order, and can be blanked or NULL to simulate removal
+
+ // Structure to use for parsing and inserting
+ struct mlt_geometry_item_s item;
+
+ // Parse the start property
+ item.frame = 0;
+ if ( mlt_geometry_parse_item( geometry, &item, mlt_properties_get( properties, "start" ) ) == 0 )
+ mlt_geometry_insert( geometry, &item );
+
+ // 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
+ item.frame = atoi( name + 4 );
+
+ // Parse and add to the list
+ if ( mlt_geometry_parse_item( geometry, &item, value ) == 0 )
+ mlt_geometry_insert( geometry, &item );
+ else
+ fprintf( stderr, "Invalid Key - skipping %s = %s\n", name, value );
+ }
+ }
+
+ // Parse the end
+ item.frame = -1;
+ if ( mlt_geometry_parse_item( geometry, &item, mlt_properties_get( properties, "end" ) ) == 0 )
+ mlt_geometry_insert( geometry, &item );
+ mlt_geometry_interpolate( geometry );
}
+
+ return geometry;
}
-/** Calculate real geometry.
+/** Adjust position according to scaled size and alignment properties.
*/
-static void geometry_calculate( struct geometry_s *output, struct geometry_s *in, struct geometry_s *out, float position )
+static void alignment_calculate( struct geometry_s *geometry )
{
- // Calculate this frames geometry
- output->nw = in->nw;
- output->nh = in->nh;
- output->x = in->x + ( out->x - in->x ) * position;
- output->y = in->y + ( out->y - in->y ) * position;
- output->w = in->w + ( out->w - in->w ) * position;
- output->h = in->h + ( out->h - in->h ) * position;
- output->mix = in->mix + ( out->mix - in->mix ) * position;
+ geometry->item.x += ( geometry->item.w - geometry->sw ) * geometry->halign / 2;
+ geometry->item.y += ( geometry->item.h - geometry->sh ) * geometry->valign / 2;
}
/** Calculate the position for this frame.
*/
-static float position_calculate( mlt_transition this, mlt_frame frame )
+static int position_calculate( mlt_transition self, 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 of the frame
- mlt_position position = mlt_frame_get_position( frame );
+ mlt_position in = mlt_transition_get_in( self );
// Now do the calcs
- return ( float )( position - in ) / ( float )( out - in + 1 );
+ return position - in;
}
-static int get_value( mlt_properties properties, char *preferred, char *fallback )
+/** Calculate the field delta for this frame - position between two frames.
+*/
+
+static int get_value( mlt_properties properties, const char *preferred, const char *fallback )
{
int value = mlt_properties_get_int( properties, preferred );
if ( value == 0 )
return value;
}
-/** Composite function.
+/** A linear threshold determination function.
*/
-static int composite_yuv( uint8_t *p_dest, mlt_image_format format_dest, int width_dest, int height_dest, mlt_frame that, struct geometry_s geometry )
+static inline int32_t linearstep( int32_t edge1, int32_t edge2, int32_t a )
{
- int ret = 0;
- uint8_t *p_src;
- int i, j;
- int stride_src;
- int stride_dest;
- int x_src = 0, y_src = 0;
-
- mlt_image_format format_src = format_dest;
- float weight = geometry.mix / 100;
-
- // Compute the dimensioning rectangle
- mlt_properties b_props = mlt_frame_properties( that );
- mlt_transition this = mlt_properties_get_data( b_props, "transition_composite", NULL );
- mlt_properties properties = mlt_transition_properties( this );
-
- if ( mlt_properties_get( properties, "distort" ) == NULL )
- {
- // Now do additional calcs based on real_width/height etc
- //int normalised_width = mlt_properties_get_int( b_props, "normalised_width" );
- //int normalised_height = mlt_properties_get_int( b_props, "normalised_height" );
- 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( that );
- double output_ar = mlt_properties_get_double( b_props, "consumer_aspect_ratio" );
- int scaled_width = ( input_ar > output_ar ? input_ar / output_ar : output_ar / input_ar ) * real_width;
- int scaled_height = ( input_ar > output_ar ? input_ar / output_ar : output_ar / input_ar ) * real_height;
+ if ( a < edge1 )
+ return 0;
- // Now ensure that our images fit in the normalised frame
- if ( scaled_width > normalised_width )
+ 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 )
{
- scaled_height = scaled_height * normalised_width / scaled_width;
- scaled_width = normalised_width;
+ 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;
}
- if ( scaled_height > normalised_height )
+
+ // get the maximum gray value, if not yet
+ if ( i < 3 )
{
- scaled_width = scaled_width * normalised_height / scaled_height;
- scaled_height = normalised_height;
- }
+ if ( fgets( line, 127, f ) == NULL )
+ break;
- // Special case
- if ( scaled_height == normalised_height )
- scaled_width = normalised_width;
+ // skip comments
+ while ( sscanf( line, " #%s", comment ) > 0 )
+ if ( fgets( line, 127, f ) == NULL )
+ break;
- // Now we need to align to the geometry
- if ( scaled_width <= geometry.w && scaled_height <= geometry.h )
- {
- // TODO: Should take into account requested alignment here...
- // Assume centred alignment for now
-
- geometry.x = geometry.x + ( geometry.w - scaled_width ) / 2;
- geometry.y = geometry.y + ( geometry.h - scaled_height ) / 2;
- geometry.w = scaled_width;
- geometry.h = scaled_height;
- mlt_properties_set( b_props, "distort", "true" );
+ i = sscanf( line, "%d", &maxval );
+ if ( i == 0 )
+ break;
}
- else
+
+ // 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 )
{
- mlt_properties_set( b_props, "distort", "true" );
+ if ( bpp == 1 )
+ *p++ = data[ i ] << 8;
+ else
+ *p++ = ( data[ i ] << 8 ) + data[ i + 1 ];
}
+
+ break;
}
- else
+
+ 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
+}
+
+static inline int calculate_mix( uint16_t *luma, int j, int softness, int weight, int alpha, uint32_t step )
+{
+ return ( ( luma ? smoothstep( luma[ j ], luma[ j ] + softness, step ) : weight ) * ( alpha + 1 ) ) >> 8;
+}
+
+static inline uint8_t sample_mix( uint8_t dest, uint8_t src, int mix )
+{
+ return ( src * mix + dest * ( ( 1 << 16 ) - mix ) ) >> 16;
+}
+
+/** Composite a source line over a destination line
+*/
+#if defined(USE_SSE) && defined(ARCH_X86_64)
+void composite_line_yuv_sse2_simple(uint8_t *dest, uint8_t *src, int width, uint8_t *alpha_b, uint8_t *alpha_a, int weight);
+#endif
+
+void composite_line_yuv( uint8_t *dest, uint8_t *src, int width, uint8_t *alpha_b, uint8_t *alpha_a, int weight, uint16_t *luma, int soft, uint32_t step )
+{
+ register int j = 0;
+ register int mix;
+
+#if defined(USE_SSE) && defined(ARCH_X86_64)
+ if ( !luma && width > 7 )
+ {
+ composite_line_yuv_sse2_simple(dest, src, width, alpha_b, alpha_a, weight);
+ j = width - width % 8;
+ dest += j * 2;
+ src += j * 2;
+ alpha_a += j;
+ alpha_b += j;
+ }
+#endif
+
+ for ( ; j < width; j ++ )
{
- // We want to ensure that we bypass resize now...
- mlt_properties_set( b_props, "distort", "true" );
+ mix = calculate_mix( luma, j, soft, weight, *alpha_b ++, step );
+ *dest = sample_mix( *dest, *src++, mix );
+ dest++;
+ *dest = sample_mix( *dest, *src++, mix );
+ dest++;
+ *alpha_a = ( mix >> 8 ) | *alpha_a;
+ alpha_a ++;
}
+}
- int x = ( geometry.x * width_dest ) / geometry.nw;
- int y = ( geometry.y * height_dest ) / geometry.nh;
- int width_src = ( geometry.w * width_dest ) / geometry.nw;
- int height_src = ( geometry.h * height_dest ) / geometry.nh;
+static void composite_line_yuv_or( uint8_t *dest, uint8_t *src, int width, uint8_t *alpha_b, uint8_t *alpha_a, int weight, uint16_t *luma, int soft, uint32_t step )
+{
+ register int j;
+ register int mix;
- x -= x % 2;
+ for ( j = 0; j < width; j ++ )
+ {
+ mix = calculate_mix( luma, j, soft, weight, *alpha_b ++ | *alpha_a, step );
+ *dest = sample_mix( *dest, *src++, mix );
+ dest++;
+ *dest = sample_mix( *dest, *src++, mix );
+ dest++;
+ *alpha_a ++ = mix >> 8;
+ }
+}
+
+static void composite_line_yuv_and( uint8_t *dest, uint8_t *src, int width, uint8_t *alpha_b, uint8_t *alpha_a, int weight, uint16_t *luma, int soft, uint32_t step )
+{
+ register int j;
+ register int mix;
+
+ for ( j = 0; j < width; j ++ )
+ {
+ mix = calculate_mix( luma, j, soft, weight, *alpha_b ++ & *alpha_a, step );
+ *dest = sample_mix( *dest, *src++, mix );
+ dest++;
+ *dest = sample_mix( *dest, *src++, mix );
+ dest++;
+ *alpha_a ++ = mix >> 8;
+ }
+}
+
+static void composite_line_yuv_xor( uint8_t *dest, uint8_t *src, int width, uint8_t *alpha_b, uint8_t *alpha_a, int weight, uint16_t *luma, int soft, uint32_t step )
+{
+ register int j;
+ register int mix;
+
+ for ( j = 0; j < width; j ++ )
+ {
+ mix = calculate_mix( luma, j, soft, weight, *alpha_b ++ ^ *alpha_a, step );
+ *dest = sample_mix( *dest, *src++, mix );
+ dest++;
+ *dest = sample_mix( *dest, *src++, mix );
+ dest++;
+ *alpha_a ++ = mix >> 8;
+ }
+}
+
+/** 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 *alpha_b, uint8_t *alpha_a, struct geometry_s geometry, int field, uint16_t *p_luma, double softness, composite_line_fn line_fn )
+{
+ int ret = 0;
+ int i;
+ int x_src = -geometry.x_src, y_src = -geometry.y_src;
+ int uneven_x_src = ( x_src % 2 );
+ int step = ( field > -1 ) ? 2 : 1;
+ int bpp = 2;
+ int stride_src = geometry.sw * bpp;
+ int stride_dest = width_dest * bpp;
+ int i_softness = ( 1 << 16 ) * softness;
+ int weight = ( ( 1 << 16 ) * geometry.item.mix + 50 ) / 100;
+ uint32_t luma_step = ( ( ( 1 << 16 ) - 1 ) * geometry.item.mix + 50 ) / 100 * ( 1.0 + softness );
+
+ // Adjust to consumer scale
+ int x = rint( geometry.item.x * width_dest / geometry.nw );
+ int y = rint( geometry.item.y * height_dest / geometry.nh );
+ int uneven_x = ( x % 2 );
// optimization points - no work to do
- if ( width_src <= 0 || height_src <= 0 )
+ if ( width_src <= 0 || height_src <= 0 || y_src >= height_src || x_src >= width_src )
return ret;
if ( ( x < 0 && -x >= width_src ) || ( y < 0 && -y >= height_src ) )
return ret;
- format_src = mlt_image_yuv422;
- format_dest = mlt_image_yuv422;
+ // cropping affects the source width
+ if ( x_src > 0 )
+ {
+ width_src -= x_src;
+ // and it implies cropping
+ if ( width_src > geometry.item.w )
+ width_src = geometry.item.w;
+ }
- mlt_frame_get_image( that, &p_src, &format_src, &width_src, &height_src, 1 /* writable */ );
+ // cropping affects the source height
+ if ( y_src > 0 )
+ {
+ height_src -= y_src;
+ // and it implies cropping
+ if ( height_src > geometry.item.h )
+ height_src = geometry.item.h;
+ }
- stride_src = width_src * 2;
- stride_dest = width_dest * 2;
-
// crop overlay off the left edge of frame
if ( x < 0 )
{
width_src -= x_src;
x = 0;
}
-
+
// 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
{
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
- p_src += x_src * 2 + y_src * stride_src;
+ p_src += x_src * bpp + y_src * stride_src;
- // offset pointer into frame buffer based upon positive, even coordinates only!
- p_dest += ( x < 0 ? 0 : x ) * 2 + ( y < 0 ? 0 : y ) * stride_dest;
-
- // Get the alpha channel of the overlay
- uint8_t *p_alpha = mlt_frame_get_alpha_mask( that );
+ // offset pointer into frame buffer based upon positive coordinates only!
+ p_dest += x * bpp + y * stride_dest;
// offset pointer into alpha channel based upon cropping
- if ( p_alpha )
- p_alpha += x_src + y_src * stride_src / 2;
+ alpha_b += x_src + y_src * stride_src / bpp;
+ alpha_a += 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;
+
+ // 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 ) )
+ {
+ if ( ( field == 1 && y < height_dest - 1 ) || ( field == 0 && y == 0 ) )
+ p_dest += stride_dest;
+ else
+ p_dest -= stride_dest;
+ }
- uint8_t *p = p_src;
- uint8_t *q = p_dest;
- uint8_t *o = p_dest;
- uint8_t *z = p_alpha;
+ // On the second field, use the other lines from b_frame
+ if ( field == 1 )
+ {
+ p_src += stride_src;
+ alpha_b += stride_src / bpp;
+ alpha_a += stride_dest / bpp;
+ height_src--;
+ }
- uint8_t Y;
- uint8_t UV;
- uint8_t a;
- float value;
+ stride_src *= step;
+ stride_dest *= step;
+ int alpha_b_stride = stride_src / bpp;
+ int alpha_a_stride = stride_dest / bpp;
- // now do the compositing only to cropped extents
- for ( i = 0; i < height_src; i++ )
+ // Align chroma of source and destination
+ if ( uneven_x != uneven_x_src )
{
- p = p_src;
- q = p_dest;
- o = p_dest;
- z = p_alpha;
+ p_src += 2;
+ alpha_b += 1;
+ }
- for ( j = 0; j < width_src; j ++ )
- {
- Y = *p ++;
- UV = *p ++;
- a = ( z == NULL ) ? 255 : *z ++;
- value = ( weight * ( float ) a / 255.0 );
- *o ++ = (uint8_t)( Y * value + *q++ * ( 1 - value ) );
- *o ++ = (uint8_t)( UV * value + *q++ * ( 1 - value ) );
- }
+ // now do the compositing only to cropped extents
+ for ( i = 0; i < height_src; i += step )
+ {
+ line_fn( p_dest, p_src, width_src, alpha_b, alpha_a, weight, p_luma, i_softness, luma_step );
p_src += stride_src;
p_dest += stride_dest;
- if ( p_alpha )
- p_alpha += stride_src / 2;
+ alpha_b += alpha_b_stride;
+ alpha_a += alpha_a_stride;
+ if ( p_luma )
+ p_luma += alpha_b_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, int invert )
+{
+ 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 ] ^ invert;
+ x += x_step;
+ }
+ y += y_step;
+ }
+}
+
+static uint16_t* get_luma( mlt_transition self, 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 );
+ 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 ( luma_width == 0 || luma_height == 0 )
+ {
+ luma_width = width;
+ luma_height = height;
+ }
+
+ if ( resource && resource[0] && strchr( resource, '%' ) )
+ {
+ // TODO: Clean up quick and dirty compressed/existence check
+ FILE *test;
+ sprintf( temp, "%s/lumas/%s/%s", mlt_environment( "MLT_DATA" ), mlt_environment( "MLT_NORMALISATION" ), strchr( resource, '%' ) + 1 );
+ test = fopen( temp, "r" );
+ if ( test == NULL )
+ strcat( temp, ".png" );
+ else
+ fclose( test );
+ resource = temp;
+ }
+
+ if ( resource && resource[0] )
+ {
+ char *old_luma = mlt_properties_get( properties, "_luma" );
+ int old_invert = mlt_properties_get_int( properties, "_luma_invert" );
+
+ if ( invert != old_invert || ( old_luma && old_luma[0] && strcmp( resource, old_luma ) ) )
+ {
+ mlt_properties_set_data( properties, "_luma.orig_bitmap", NULL, 0, NULL, NULL );
+ luma_bitmap = NULL;
+ }
+ }
+ else {
+ char *old_luma = mlt_properties_get( properties, "_luma" );
+ if ( old_luma && old_luma[0] )
+ {
+ mlt_properties_set_data( properties, "_luma.orig_bitmap", NULL, 0, NULL, NULL );
+ luma_bitmap = NULL;
+ mlt_properties_set( properties, "_luma", NULL);
+ }
+ }
+
+ if ( resource && resource[0] && ( 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 = strrchr( resource, '.' );
+
+ // See if it is a PGM
+ if ( extension != NULL && strcmp( extension, ".pgm" ) == 0 )
+ {
+ // Open PGM
+ FILE *f = fopen( resource, "rb" );
+ 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_profile profile = mlt_service_profile( MLT_TRANSITION_SERVICE( self ) );
+ mlt_producer producer = mlt_factory_producer( profile, 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, invert * ( ( 1 << 16 ) - 1 ) );
+
+ // 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 );
+ mlt_properties_set( properties, "_luma", resource );
+ mlt_properties_set_int( properties, "_luma_invert", invert );
+ }
+ return luma_bitmap;
+}
+
+/** Get the properly sized image from b_frame.
+*/
+
+static int get_b_frame_image( mlt_transition self, 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( self );
+ uint8_t resize_alpha = mlt_properties_get_int( b_props, "resize_alpha" );
+ double output_ar = mlt_profile_sar( mlt_service_profile( MLT_TRANSITION_SERVICE(self) ) );
+
+ // Do not scale if we are cropping - the compositing rectangle can crop the b image
+ // TODO: Use the animatable w and h of the crop geometry to scale independently of crop rectangle
+ if ( mlt_properties_get( properties, "crop" ) )
+ {
+ int real_width = get_value( b_props, "meta.media.width", "width" );
+ int real_height = get_value( b_props, "meta.media.height", "height" );
+ double input_ar = mlt_properties_get_double( b_props, "aspect_ratio" );
+ int scaled_width = rint( ( input_ar == 0.0 ? output_ar : input_ar ) / output_ar * real_width );
+ int scaled_height = real_height;
+ geometry->sw = scaled_width;
+ geometry->sh = scaled_height;
+ }
+ // Normalise aspect ratios and scale preserving aspect ratio
+ else if ( mlt_properties_get_int( properties, "aligned" ) && 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;
+ int normalised_height = geometry->item.h;
+ int real_width = get_value( b_props, "meta.media.width", "width" );
+ int real_height = get_value( b_props, "meta.media.height", "height" );
+ double input_ar = mlt_properties_get_double( b_props, "aspect_ratio" );
+ int scaled_width = rint( ( input_ar == 0.0 ? output_ar : input_ar ) / output_ar * real_width );
+ int scaled_height = real_height;
+// fprintf(stderr, "%s: scaled %dx%d norm %dx%d real %dx%d output_ar %f\n", __FILE__,
+// scaled_width, scaled_height, normalised_width, normalised_height, real_width, real_height,
+// output_ar);
+
+ // Now ensure that our images fit in the normalised frame
+ if ( scaled_width > normalised_width )
+ {
+ scaled_height = rint( scaled_height * normalised_width / scaled_width );
+ scaled_width = normalised_width;
+ }
+ if ( scaled_height > normalised_height )
+ {
+ scaled_width = rint( scaled_width * normalised_height / scaled_height );
+ scaled_height = normalised_height;
+ }
+
+ // 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 > 0 && scaled_height > 0 )
+ {
+ if ( scaled_height < normalised_height && scaled_width * normalised_height / scaled_height <= normalised_width )
+ {
+ scaled_width = rint( 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 = rint( scaled_height * normalised_width / scaled_width );
+ scaled_width = normalised_width;
+ }
+ }
+
+ // Save the new scaled dimensions
+ geometry->sw = scaled_width;
+ geometry->sh = scaled_height;
+ }
+ else
+ {
+ geometry->sw = geometry->item.w;
+ geometry->sh = geometry->item.h;
+ }
+
+ // We want to ensure that we bypass resize now...
+ if ( resize_alpha == 0 )
+ mlt_properties_set_int( b_props, "distort", mlt_properties_get_int( properties, "distort" ) );
+
+ // If we're not aligned, we want a non-transparent background
+ if ( mlt_properties_get_int( properties, "aligned" ) == 0 )
+ mlt_properties_set_int( b_props, "resize_alpha", 255 );
+
+ // Take into consideration alignment for optimisation (titles are a special case)
+ if ( !mlt_properties_get_int( properties, "titles" ) &&
+ mlt_properties_get( properties, "crop" ) == NULL )
+ alignment_calculate( geometry );
+
+ // Adjust to consumer scale
+ *width = rint( geometry->sw * *width / geometry->nw );
+ *width -= *width % 2; // coerce to even width for yuv422
+ *height = rint( geometry->sh * *height / geometry->nh );
+// fprintf(stderr, "%s: scaled %dx%d norm %dx%d resize %dx%d\n", __FILE__,
+// geometry->sw, geometry->sh, geometry->nw, geometry->nh, *width, *height);
+
+ ret = mlt_frame_get_image( b_frame, image, &format, width, height, 1 );
+
+ // composite_yuv uses geometry->sw to determine source stride, which
+ // should equal the image width if not using crop property.
+ if ( !mlt_properties_get( properties, "crop" ) )
+ geometry->sw = *width;
+
+ // Set the frame back
+ mlt_properties_set_int( b_props, "resize_alpha", resize_alpha );
+
+ return ret && image != NULL;
+}
+
+static void crop_calculate( mlt_transition self, mlt_properties properties, struct geometry_s *result, double position )
+{
+ // Initialize panning info
+ result->x_src = 0;
+ result->y_src = 0;
+ if ( mlt_properties_get( properties, "crop" ) )
+ {
+ mlt_geometry crop = mlt_properties_get_data( properties, "crop_geometry", NULL );
+ if ( !crop )
+ {
+ crop = mlt_geometry_init();
+ mlt_position length = mlt_transition_get_length( self );
+ double cycle = mlt_properties_get_double( properties, "cycle" );
+
+ // Allow a geometry repeat cycle
+ if ( cycle >= 1 )
+ length = cycle;
+ else if ( cycle > 0 )
+ length *= cycle;
+ mlt_geometry_parse( crop, mlt_properties_get( properties, "crop" ), length, result->sw, result->sh );
+ mlt_properties_set_data( properties, "crop_geometry", crop, 0, (mlt_destructor)mlt_geometry_close, NULL );
+ }
+
+ // Repeat processing
+ int length = mlt_geometry_get_length( crop );
+ int mirror_off = mlt_properties_get_int( properties, "mirror_off" );
+ int repeat_off = mlt_properties_get_int( properties, "repeat_off" );
+ if ( !repeat_off && position >= length && length != 0 )
+ {
+ int section = position / length;
+ position -= section * length;
+ if ( !mirror_off && section % 2 == 1 )
+ position = length - position;
+ }
+
+ // Compute the pan
+ struct mlt_geometry_item_s crop_item;
+ mlt_geometry_fetch( crop, &crop_item, position );
+ result->x_src = rint( crop_item.x );
+ result->y_src = rint( crop_item.y );
+ }
+}
+
+static mlt_geometry composite_calculate( mlt_transition self, struct geometry_s *result, mlt_frame a_frame, double position )
+{
+ // Get the properties from the transition
+ mlt_properties properties = MLT_TRANSITION_PROPERTIES( self );
+
+ // Get the properties from the frame
+ mlt_properties a_props = MLT_FRAME_PROPERTIES( a_frame );
+
+ // Structures for geometry
+ mlt_geometry start = mlt_properties_get_data( properties, "geometries", NULL );
+
+ // Obtain the normalised width and height from the a_frame
+ mlt_profile profile = mlt_service_profile( MLT_TRANSITION_SERVICE( self ) );
+ int normalised_width = profile->width;
+ int normalised_height = profile->height;
+
+ char *name = mlt_properties_get( properties, "_unique_id" );
+ char key[ 256 ];
+
+ sprintf( key, "%s.in", name );
+ if ( mlt_properties_get( a_props, key ) )
+ {
+ sscanf( mlt_properties_get( a_props, key ), "%f %f %f %f %f %d %d", &result->item.x, &result->item.y, &result->item.w, &result->item.h, &result->item.mix, &result->nw, &result->nh );
+ }
+ else
+ {
+ // Now parse the geometries
+ if ( start == NULL )
+ {
+ // Parse the transitions properties
+ start = transition_parse_keys( self, normalised_width, normalised_height );
+
+ // Assign to properties to ensure we get destroyed
+ mlt_properties_set_data( properties, "geometries", start, 0, ( mlt_destructor )mlt_geometry_close, NULL );
+ }
+ else
+ {
+ mlt_position length = mlt_transition_get_length( self );
+ 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 );
+ }
+
+ // Do the calculation
+ geometry_calculate( self, result, position );
+
+ // Assign normalised info
+ result->nw = normalised_width;
+ result->nh = normalised_height;
+ }
+
+ // Now parse the alignment
+ result->halign = alignment_parse( mlt_properties_get( properties, "halign" ) );
+ result->valign = alignment_parse( mlt_properties_get( properties, "valign" ) );
+
+ crop_calculate( self, properties, result, position );
+
+ return start;
+}
+
+mlt_frame composite_copy_region( mlt_transition self, mlt_frame a_frame, mlt_position frame_position )
+{
+ // Create a frame to return
+ mlt_frame b_frame = mlt_frame_init( MLT_TRANSITION_SERVICE( self ) );
+
+ // 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 );
+
+ // Get the position
+ int position = position_calculate( self, frame_position );
+
+ // Get the unique id of the transition
+ char *name = mlt_properties_get( MLT_TRANSITION_PROPERTIES( self ), "_unique_id" );
+ char key[ 256 ];
+
+ // Destination image
+ uint8_t *dest = NULL;
+
+ // Get the image and dimensions
+ uint8_t *image = NULL;
+ int width = mlt_properties_get_int( a_props, "width" );
+ int height = mlt_properties_get_int( a_props, "height" );
+ mlt_image_format format = mlt_image_yuv422;
+
+ mlt_frame_get_image( a_frame, &image, &format, &width, &height, 0 );
+ if ( !image )
+ return b_frame;
+
+ // Pointers for copy operation
+ uint8_t *p;
+
+ // Coordinates
+ int w = 0;
+ int h = 0;
+ int x = 0;
+ int y = 0;
+
+ int ss = 0;
+ int ds = 0;
+
+ // Will need to know region to copy
+ struct geometry_s result;
+
+ // Calculate the region now
+ composite_calculate( self, &result, a_frame, position );
+
+ // Need to scale down to actual dimensions
+ x = rint( result.item.x * width / result.nw );
+ y = rint( result.item.y * height / result.nh );
+ w = rint( result.item.w * width / result.nw );
+ h = rint( result.item.h * height / result.nh );
+
+ if ( x % 2 )
+ {
+ x --;
+ w ++;
+ }
+
+ // Store the key
+ sprintf( key, "%s.in=%d %d %d %d %f %d %d", name, x, y, w, h, result.item.mix, width, height );
+ mlt_properties_parse( a_props, key );
+ sprintf( key, "%s.out=%d %d %d %d %f %d %d", name, x, y, w, h, result.item.mix, width, height );
+ mlt_properties_parse( a_props, key );
+
+ ds = w * 2;
+ ss = width * 2;
+
+ // Now we need to create a new destination image
+ dest = mlt_pool_alloc( w * h * 2 );
+
+ // Assign to the new frame
+ mlt_frame_set_image( b_frame, dest, w * h * 2, mlt_pool_release );
+ mlt_properties_set_int( b_props, "width", w );
+ mlt_properties_set_int( b_props, "height", h );
+ mlt_properties_set_int( b_props, "format", format );
+
+ if ( y < 0 )
+ {
+ dest += ( ds * -y );
+ h += y;
+ y = 0;
+ }
+
+ if ( y + h > height )
+ h -= ( y + h - height );
+
+ if ( x < 0 )
+ {
+ dest += -x * 2;
+ w += x;
+ x = 0;
+ }
+
+ if ( w > 0 && h > 0 )
+ {
+ // Copy the region of the image
+ p = image + y * ss + x * 2;
+
+ while ( h -- )
+ {
+ 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_int( b_props, "distort", 1 );
+
+ // Return the frame
+ return b_frame;
+}
+
/** Get the image.
*/
// Get the b frame from the stack
mlt_frame b_frame = mlt_frame_pop_frame( a_frame );
- // Get the image from the a frame
- mlt_frame_get_image( a_frame, image, format, width, height, 1 );
+ // Get the transition from the a frame
+ mlt_transition self = mlt_frame_pop_service( a_frame );
+
+ // Get in and out
+ double position = mlt_deque_pop_back_double( MLT_FRAME_IMAGE_STACK( a_frame ) );
+ 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( self );
+
+ // 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
- 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 transition from the b frame
- mlt_transition this = mlt_properties_get_data( b_props, "transition_composite", NULL );
-
- // 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;
- struct geometry_s start;
- struct geometry_s end;
// Calculate the position
- float position = position_calculate( this, a_frame );
+ double delta = mlt_transition_get_progress_delta( self, a_frame );
+ mlt_position length = mlt_transition_get_length( self );
+
+ // Get the image from the b frame
+ uint8_t *image_b = NULL;
+ mlt_profile profile = mlt_service_profile( MLT_TRANSITION_SERVICE( self ) );
+ int width_b = *width > 0 ? *width : profile->width;
+ int height_b = *height > 0 ? *height : profile->height;
+
+ // Vars for alphas
+ uint8_t *alpha_a = NULL;
+ uint8_t *alpha_b = 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" );
+ // Do the calculation
+ // NB: Locks needed here since the properties are being modified
+ int invert = mlt_properties_get_int( properties, "invert" );
+ mlt_service_lock( MLT_TRANSITION_SERVICE( self ) );
+ composite_calculate( self, &result, invert ? b_frame : a_frame, position );
+ mlt_service_unlock( MLT_TRANSITION_SERVICE( self ) );
+
+ // Manual option to deinterlace
+ if ( mlt_properties_get_int( properties, "deinterlace" ) )
+ {
+ mlt_properties_set_int( a_props, "consumer_deinterlace", 1 );
+ mlt_properties_set_int( b_props, "consumer_deinterlace", 1 );
+ }
- // Now parse the geometries
- geometry_parse( &start, NULL, mlt_properties_get( properties, "start" ), normalised_width, normalised_height );
- geometry_parse( &end, &start, mlt_properties_get( properties, "end" ), normalised_width, 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;
+ }
- // Do the calculation
- geometry_calculate( &result, &start, &end, position );
+ if ( a_frame == b_frame )
+ {
+ double aspect_ratio = mlt_frame_get_aspect_ratio( b_frame );
+ get_b_frame_image( self, b_frame, &image_b, &width_b, &height_b, &result );
+ alpha_b = mlt_frame_get_alpha_mask( b_frame );
+ mlt_properties_set_double( a_props, "aspect_ratio", aspect_ratio );
+ }
- // 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" ) );
-
- // Composite the b_frame on the a_frame
- composite_yuv( *image, *format, *width, *height, b_frame, result );
+ // Get the image from the a frame
+ mlt_frame_get_image( a_frame, invert ? &image_b : image, format, width, height, 1 );
+ alpha_a = mlt_frame_get_alpha_mask( a_frame );
+
+ // Optimisation - no compositing required
+ if ( result.item.mix == 0 || ( result.item.w == 0 && result.item.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" ) );
+ }
+
+ // 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" );
+ width_b = mlt_properties_get_int( a_props, "dest_width" );
+ height_b = mlt_properties_get_int( a_props, "dest_height" );
+ }
+
+ if ( *image != image_b && ( ( invert ? 0 : image_b ) || get_b_frame_image( self, b_frame, invert ? image : &image_b, &width_b, &height_b, &result ) == 0 ) )
+ {
+ uint8_t *dest = *image;
+ uint8_t *src = image_b;
+ int progressive =
+ mlt_properties_get_int( a_props, "consumer_deinterlace" ) ||
+ mlt_properties_get_int( properties, "progressive" );
+ int field;
+
+ double luma_softness = mlt_properties_get_double( properties, "softness" );
+ mlt_service_lock( MLT_TRANSITION_SERVICE( self ) );
+ uint16_t *luma_bitmap = get_luma( self, properties, width_b, height_b );
+ mlt_service_unlock( MLT_TRANSITION_SERVICE( self ) );
+ char *operator = mlt_properties_get( properties, "operator" );
+
+ alpha_b = alpha_b == NULL ? mlt_frame_get_alpha_mask( b_frame ) : alpha_b;
+
+ composite_line_fn line_fn = composite_line_yuv;
+
+ // Replacement and override
+ if ( operator != NULL )
+ {
+ if ( !strcmp( operator, "or" ) )
+ line_fn = composite_line_yuv_or;
+ if ( !strcmp( operator, "and" ) )
+ line_fn = composite_line_yuv_and;
+ if ( !strcmp( operator, "xor" ) )
+ line_fn = composite_line_yuv_xor;
+ }
+
+ // Allow the user to completely obliterate the alpha channels from both frames
+ if ( mlt_properties_get( properties, "alpha_a" ) )
+ memset( alpha_a, mlt_properties_get_int( properties, "alpha_a" ), *width * *height );
+
+ if ( mlt_properties_get( properties, "alpha_b" ) )
+ memset( alpha_b, mlt_properties_get_int( properties, "alpha_b" ), width_b * height_b );
+
+ for ( field = 0; field < ( progressive ? 1 : 2 ); field++ )
+ {
+ // Assume lower field (0) first
+ double field_position = position + field * delta * length;
+
+ // Do the calculation if we need to
+ // NB: Locks needed here since the properties are being modified
+ mlt_service_lock( MLT_TRANSITION_SERVICE( self ) );
+ composite_calculate( self, &result, invert ? b_frame : a_frame, field_position );
+ mlt_service_unlock( MLT_TRANSITION_SERVICE( self ) );
+
+ if ( mlt_properties_get_int( properties, "titles" ) )
+ {
+ result.item.w = rint( *width * ( result.item.w / result.nw ) );
+ result.nw = result.item.w;
+ result.item.h = rint( *height * ( result.item.h / result.nh ) );
+ result.nh = *height;
+ result.sw = width_b;
+ result.sh = height_b;
+ }
+
+ // Enforce cropping
+ if ( mlt_properties_get( properties, "crop" ) )
+ {
+ if ( result.x_src == 0 )
+ width_b = width_b > result.item.w ? result.item.w : width_b;
+ if ( result.y_src == 0 )
+ height_b = height_b > result.item.h ? result.item.h : height_b;
+ }
+ else
+ {
+ // Otherwise, align
+ alignment_calculate( &result );
+ }
+
+ // Composite the b_frame on the a_frame
+ if ( invert )
+ composite_yuv( dest, width_b, height_b, src, *width, *height, alpha_a, alpha_b, result, progressive ? -1 : field, luma_bitmap, luma_softness, line_fn );
+ else
+ composite_yuv( dest, *width, *height, src, width_b, height_b, alpha_b, alpha_a, result, progressive ? -1 : field, luma_bitmap, luma_softness, line_fn );
+ }
+ }
+ }
+ else
+ {
+ mlt_frame_get_image( a_frame, image, format, width, height, 1 );
}
return 0;
/** Composition transition processing.
*/
-static mlt_frame composite_process( mlt_transition this, mlt_frame a_frame, mlt_frame b_frame )
+static mlt_frame composite_process( mlt_transition self, mlt_frame a_frame, mlt_frame b_frame )
{
- // Propogate the transition properties to the b frame
- mlt_properties b_props = mlt_frame_properties( b_frame );
- mlt_properties_set_data( b_props, "transition_composite", this, 0, NULL, NULL );
- mlt_frame_push_get_image( a_frame, transition_get_image );
+ // 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( self ), "always_active" ) == 0 )
+ {
+ mlt_frame_push_service_int( a_frame, mlt_properties_get_int( MLT_TRANSITION_PROPERTIES( self ), "in" ) );
+ mlt_frame_push_service_int( a_frame, mlt_properties_get_int( MLT_TRANSITION_PROPERTIES( self ), "out" ) );
+ mlt_deque_push_back_double( MLT_FRAME_IMAGE_STACK( a_frame ), position_calculate( self, 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_deque_push_back_double( MLT_FRAME_IMAGE_STACK( a_frame ), mlt_properties_get_int( props, "_frame" ) - mlt_properties_get_int( props, "in" ) );
+ }
+
+ mlt_frame_push_service( a_frame, self );
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( char *arg )
+mlt_transition transition_composite_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
{
- mlt_transition this = calloc( sizeof( struct mlt_transition_s ), 1 );
- if ( this != NULL && mlt_transition_init( this, NULL ) == 0 )
+ mlt_transition self = calloc( 1, sizeof( struct mlt_transition_s ) );
+ if ( self != NULL && mlt_transition_init( self, NULL ) == 0 )
{
- this->process = composite_process;
- mlt_properties_set( mlt_transition_properties( this ), "start", arg != NULL ? arg : "85%,5%:10%x10%" );
- mlt_properties_set( mlt_transition_properties( this ), "end", "" );
+ mlt_properties properties = MLT_TRANSITION_PROPERTIES( self );
+
+ self->process = composite_process;
+
+ // Default starting motion and zoom
+ mlt_properties_set( properties, "start", arg != NULL ? arg : "0/0:100%x100%" );
+
+ // Default factory
+ mlt_properties_set( properties, "factory", mlt_environment( "MLT_PRODUCER" ) );
+
+ // Use alignment (and hence alpha of b frame)
+ mlt_properties_set_int( properties, "aligned", 1 );
+
+ // Default to progressive rendering
+ mlt_properties_set_int( properties, "progressive", 1 );
+
+ // Inform apps and framework that this is a video only transition
+ mlt_properties_set_int( properties, "_transition_type", 1 );
}
- return this;
+ return self;
}
-
projects / mlt / blobdiff