+++ /dev/null
-/*
- * transition_composite.c -- compose one image over another using alpha channel
- * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
- * Author: Dan Dennedy <dan@dennedy.org>
- *
- * 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 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
- * Lesser General Public License for more details.
- *
- * 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.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 );
-
-/** Geometry struct.
-*/
-
-struct geometry_s
-{
- 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 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;
-}
-
-/** Calculate real geometry.
-*/
-
-static void geometry_calculate( mlt_transition this, struct geometry_s *output, double position )
-{
- mlt_properties properties = MLT_TRANSITION_PROPERTIES( this );
- mlt_geometry geometry = mlt_properties_get_data( properties, "geometries", NULL );
- int mirror_off = mlt_properties_get_int( properties, "mirror_off" );
- int repeat_off = mlt_properties_get_int( properties, "repeat_off" );
- int length = mlt_geometry_get_length( geometry );
-
- // Allow wrapping
- if ( !repeat_off && position >= length && length != 0 )
- {
- int section = position / length;
- position -= section * length;
- if ( !mirror_off && section % 2 == 1 )
- position = length - position;
- }
-
- // Fetch the key for the position
- mlt_geometry_fetch( geometry, &output->item, position );
-}
-
-static mlt_geometry 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 );
-
- // Create an empty geometries object
- mlt_geometry geometry = mlt_geometry_init( );
-
- // Get the in and out position
- mlt_position in = mlt_transition_get_in( this );
- mlt_position out = mlt_transition_get_out( this );
- int length = out - in + 1;
- double cycle = mlt_properties_get_double( properties, "cycle" );
-
- // Get the new style geometry string
- char *property = mlt_properties_get( properties, "geometry" );
-
- // Allow a geometry repeat cycle
- if ( cycle >= 1 )
- length = cycle;
- else if ( cycle > 0 )
- length *= cycle;
-
- // Parse the geometry if we have one
- mlt_geometry_parse( geometry, property, length, normalised_width, normalised_height );
-
- // Check if we're using the old style geometry
- if ( property == NULL )
- {
- // 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 );
- }
-
- return geometry;
-}
-
-/** Adjust position according to scaled size and alignment properties.
-*/
-
-static void alignment_calculate( struct geometry_s *geometry )
-{
- 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 int position_calculate( mlt_transition this, mlt_position position )
-{
- // Get the in and out position
- mlt_position in = mlt_transition_get_in( this );
-
- // Now do the calcs
- return position - in;
-}
-
-/** Calculate the field delta for this frame - position between two frames.
-*/
-
-static inline double delta_calculate( mlt_transition this, mlt_frame frame, 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 );
- double length = out - in + 1;
-
- // Now do the calcs
- double x = ( double )( position - in ) / length;
- double y = ( double )( position + 1 - in ) / length;
-
- return length * ( y - x ) / 2.0;
-}
-
-static int get_value( mlt_properties properties, const char *preferred, const 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
-}
-
-static inline int calculate_mix( uint16_t *luma, int j, int soft, int weight, int alpha )
-{
- return ( ( ( luma == NULL ) ? weight : smoothstep( luma[ j ], luma[ j ] + soft, weight + soft ) ) * alpha ) >> 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
-*/
-
-static 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 )
-{
- register int j;
- register int mix;
-
- for ( j = 0; j < width; j ++ )
- {
- mix = calculate_mix( luma, j, soft, weight, *alpha_b ++ );
- *dest = sample_mix( *dest, *src++, mix );
- dest++;
- *dest = sample_mix( *dest, *src++, mix );
- dest++;
- *alpha_a = ( mix >> 8 ) | *alpha_a;
- alpha_a ++;
- }
-}
-
-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 )
-{
- register int j;
- register int mix;
-
- for ( j = 0; j < width; j ++ )
- {
- mix = calculate_mix( luma, j, soft, weight, *alpha_b ++ | *alpha_a );
- *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 )
-{
- register int j;
- register int mix;
-
- for ( j = 0; j < width; j ++ )
- {
- mix = calculate_mix( luma, j, soft, weight, *alpha_b ++ & *alpha_a );
- *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 )
-{
- register int j;
- register int mix;
-
- for ( j = 0; j < width; j ++ )
- {
- mix = calculate_mix( luma, j, soft, weight, *alpha_b ++ ^ *alpha_a );
- *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, int32_t 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 );
- int32_t weight = ( ( 1 << 16 ) - 1 ) * ( geometry.item.mix / 100 );
- int step = ( field > -1 ) ? 2 : 1;
- int bpp = 2;
- int stride_src = geometry.sw * bpp;
- int stride_dest = width_dest * bpp;
-
- // 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 || y_src >= height_src || x_src >= width_src )
- return ret;
-
- if ( ( x < 0 && -x >= width_src ) || ( y < 0 && -y >= height_src ) )
- return ret;
-
- // 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;
- }
-
- // 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;
- }
-
- // 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
- 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;
- }
-
- // 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--;
- }
-
- stride_src *= step;
- stride_dest *= step;
- int alpha_b_stride = stride_src / bpp;
- int alpha_a_stride = stride_dest / bpp;
-
- // Align chroma of source and destination
- if ( uneven_x != uneven_x_src )
- {
- p_src += 2;
- width_src -= 2;
- alpha_b += 1;
- }
-
- // 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, softness );
-
- p_src += stride_src;
- p_dest += stride_dest;
- 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 this, 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, "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_profile profile = mlt_service_profile( MLT_TRANSITION_SERVICE( this ) );
- 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 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 );
- uint8_t resize_alpha = mlt_properties_get_int( b_props, "resize_alpha" );
-
- // 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, "real_width", "width" );
- int real_height = get_value( b_props, "real_height", "height" );
- double input_ar = mlt_properties_get_double( b_props, "aspect_ratio" );
- double consumer_ar = mlt_properties_get_double( b_props, "consumer_aspect_ratio" );
- double background_ar = mlt_properties_get_double( b_props, "output_ratio" );
- double output_ar = background_ar != 0.0 ? background_ar : consumer_ar;
- 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, "real_width", "width" );
- int real_height = get_value( b_props, "real_height", "height" );
- double input_ar = mlt_properties_get_double( b_props, "aspect_ratio" );
- double consumer_ar = mlt_properties_get_double( b_props, "consumer_aspect_ratio" );
- double background_ar = mlt_properties_get_double( b_props, "output_ratio" );
- double output_ar = background_ar != 0.0 ? background_ar : consumer_ar;
- 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 => %f\n", __FILE__,
-// scaled_width, scaled_height, normalised_width, normalised_height, real_width, real_height,
-// background_ar, 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 );
- *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 );
-
- // Set the frame back
- mlt_properties_set_int( b_props, "resize_alpha", resize_alpha );
-
- return ret && image != NULL;
-}
-
-static void crop_calculate( mlt_transition this, 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 in = mlt_transition_get_in( this );
- mlt_position out = mlt_transition_get_out( this );
- int length = out - in + 1;
- double cycle = mlt_properties_get_double( properties, "cycle" );
-
- // 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 this, struct geometry_s *result, mlt_frame a_frame, double 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
- mlt_geometry 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" );
-
- 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( this, 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
- {
- int length = mlt_transition_get_out( this ) - mlt_transition_get_in( this ) + 1;
- double cycle = mlt_properties_get_double( properties, "cycle" );
- if ( cycle > 1 )
- length = cycle;
- else if ( cycle > 0 )
- length *= cycle;
- mlt_geometry_refresh( start, mlt_properties_get( properties, "geometry" ), length, normalised_width, normalised_height );
- }
-
- // Do the calculation
- geometry_calculate( this, 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( this, properties, result, position );
-
- return start;
-}
-
-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( MLT_TRANSITION_SERVICE( this ) );
-
- // 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( this, frame_position );
-
- // Get the unique id of the transition
- char *name = mlt_properties_get( MLT_TRANSITION_PROPERTIES( this ), "_unique_id" );
- char key[ 256 ];
-
- // 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" );
- int format = mlt_properties_get_int( a_props, "format" );
-
- // 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( this, &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_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 );
- 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.
-*/
-
-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( a_frame );
-
- // Get the transition from the a frame
- mlt_transition this = 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( this );
-
- // TODO: clean up always_active behaviour
- if ( mlt_properties_get_int( properties, "always_active" ) )
- {
- mlt_events_block( properties, properties );
- mlt_properties_set_int( properties, "in", in );
- mlt_properties_set_int( properties, "out", out );
- mlt_events_unblock( properties, properties );
- }
-
- // This compositer is yuv422 only
- *format = mlt_image_yuv422;
-
- if ( b_frame != NULL )
- {
- // Get the properties of the a frame
- 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 );
-
- // Structures for geometry
- struct geometry_s result;
-
- // Calculate the position
- double delta = delta_calculate( this, a_frame, position );
-
- // Get the image from the b frame
- uint8_t *image_b = NULL;
- int width_b = *width;
- int height_b = *height;
-
- // Vars for alphas
- uint8_t *alpha_a = NULL;
- uint8_t *alpha_b = NULL;
-
- // Composites always need scaling... defaulting to lowest
- const char *rescale = mlt_properties_get( a_props, "rescale.interp" );
- if ( rescale == NULL || !strcmp( rescale, "none" ) )
- rescale = "nearest";
- mlt_properties_set( a_props, "rescale.interp", rescale );
- mlt_properties_set( b_props, "rescale.interp", rescale );
-
- // Do the calculation
- // NB: Locks needed here since the properties are being modified
- mlt_service_lock( MLT_TRANSITION_SERVICE( this ) );
- composite_calculate( this, &result, a_frame, position );
- mlt_service_unlock( MLT_TRANSITION_SERVICE( this ) );
-
- // Since we are the consumer of the b_frame, we must pass along these
- // consumer properties from the a_frame
- mlt_properties_set_int( b_props, "consumer_deinterlace", mlt_properties_get_int( a_props, "consumer_deinterlace" ) || mlt_properties_get_int( properties, "deinterlace" ) );
- mlt_properties_set( b_props, "consumer_deinterlace_method", mlt_properties_get( a_props, "consumer_deinterlace_method" ) );
- mlt_properties_set_double( b_props, "consumer_aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
-
- // 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;
- }
-
- if ( a_frame == b_frame )
- {
- double aspect_ratio = mlt_frame_get_aspect_ratio( b_frame );
- get_b_frame_image( this, 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 );
- }
-
- // Get the image from the a frame
- mlt_frame_get_image( a_frame, 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 && ( image_b != NULL || 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 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( this, properties, width_b, height_b );
- 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;
-
- // Do the calculation if we need to
- // NB: Locks needed here since the properties are being modified
- mlt_service_lock( MLT_TRANSITION_SERVICE( this ) );
- composite_calculate( this, &result, a_frame, field_position );
- mlt_service_unlock( MLT_TRANSITION_SERVICE( this ) );
-
- 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
- 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 )
-{
- // UGH - this is a TODO - find a more reliable means of obtaining in/out for the always_active case
- if ( mlt_properties_get_int( MLT_TRANSITION_PROPERTIES( this ), "always_active" ) == 0 )
- {
- mlt_frame_push_service_int( a_frame, mlt_properties_get_int( MLT_TRANSITION_PROPERTIES( this ), "in" ) );
- mlt_frame_push_service_int( a_frame, mlt_properties_get_int( MLT_TRANSITION_PROPERTIES( this ), "out" ) );
- mlt_deque_push_back_double( MLT_FRAME_IMAGE_STACK( a_frame ), position_calculate( this, mlt_frame_get_position( a_frame ) ) );
- }
- else
- {
- mlt_properties props = mlt_properties_get_data( MLT_FRAME_PROPERTIES( b_frame ), "_producer", NULL );
- mlt_frame_push_service_int( a_frame, mlt_properties_get_int( props, "in" ) );
- mlt_frame_push_service_int( a_frame, mlt_properties_get_int( props, "out" ) );
- mlt_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, 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( 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_properties properties = MLT_TRANSITION_PROPERTIES( this );
-
- this->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", "fezzik" );
-
- // Use alignment (and hence alpha of b frame)
- mlt_properties_set_int( properties, "aligned", 1 );
-
- // Inform apps and framework that this is a video only transition
- mlt_properties_set_int( properties, "_transition_type", 1 );
- }
- return this;
-}
projects / melted / blobdiff