--- /dev/null
+include ../../../config.mak
+
+TARGET = ../libmltplus.so
+
+OBJS = factory.o \
+ filter_charcoal.o \
+ filter_invert.o
+
+CFLAGS += -I../..
+
+SRCS := $(OBJS:.o=.c)
+
+all: $(TARGET)
+
+$(TARGET): $(OBJS)
+ $(CC) -shared -o $@ $(OBJS) $(LDFLAGS)
+
+depend: $(SRCS)
+ $(CC) -MM $(CFLAGS) $^ 1>.depend
+
+dist-clean: clean
+ rm -f .depend
+
+clean:
+ rm -f $(OBJS) $(TARGET)
+
+install: all
+ install -m 755 $(TARGET) "$(prefix)/share/mlt/modules"
+
+ifneq ($(wildcard .depend),)
+include .depend
+endif
--- /dev/null
+#!/bin/bash
+
+if [ "$help" != "1" ]
+then
+
+cat << EOF >> ../producers.dat
+EOF
+
+cat << EOF >> ../filters.dat
+charcoal libmltplus.so
+invert libmltplus.so
+EOF
+
+cat << EOF >> ../transitions.dat
+EOF
+
+cat << EOF >> ../consumers.dat
+EOF
+
+fi
--- /dev/null
+/*
+ * factory.c -- the factory method interfaces
+ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
+ * Author: Charles Yates <charles.yates@pandora.be>
+ *
+ * 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 program 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.
+ *
+ * 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.
+ */
+
+#include <string.h>
+
+#include "filter_charcoal.h"
+#include "filter_invert.h"
+
+void *mlt_create_producer( char *id, void *arg )
+{
+ return NULL;
+}
+
+void *mlt_create_filter( char *id, void *arg )
+{
+ if ( !strcmp( id, "charcoal" ) )
+ return filter_charcoal_init( arg );
+ if ( !strcmp( id, "invert" ) )
+ return filter_invert_init( arg );
+ return NULL;
+}
+
+void *mlt_create_transition( char *id, void *arg )
+{
+ return NULL;
+}
+
+void *mlt_create_consumer( char *id, void *arg )
+{
+ return NULL;
+}
--- /dev/null
+/*
+ * filter_charcoal.c -- charcoal filter
+ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
+ * Author: Charles Yates <charles.yates@pandora.be>
+ *
+ * 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 program 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.
+ *
+ * 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.
+ */
+
+#include "filter_charcoal.h"
+
+#include <framework/mlt_frame.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+static inline int get_Y( uint8_t *pixels, int width, int height, int x, int y )
+{
+ if ( x < 0 || x >= width || y < 0 || y >= height )
+ {
+ return 235;
+ }
+ else
+ {
+ uint8_t *pixel = pixels + y * width * 2 + x * 2;
+ return *pixel;
+ }
+}
+
+static inline int sqrti( int n )
+{
+ int p = 0;
+ int q = 1;
+ int r = n;
+ int h = 0;
+
+ while( q <= n )
+ q = 4 * q;
+
+ while( q != 1 )
+ {
+ q = q / 4;
+ h = p + q;
+ p = p / 2;
+ if ( r >= h )
+ {
+ p = p + q;
+ r = r - h;
+ }
+ }
+
+ return p;
+}
+
+/** Do it :-).
+*/
+
+static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
+{
+ // Get the filter
+ mlt_filter filter = mlt_frame_pop_service( this );
+
+ // Get the image
+ int error = mlt_frame_get_image( this, image, format, width, height, 1 );
+
+ // Only process if we have no error and a valid colour space
+ if ( error == 0 && *format == mlt_image_yuv422 )
+ {
+ // Get the charcoal scatter value
+ int x_scatter = mlt_properties_get_double( mlt_filter_properties( filter ), "x_scatter" );
+ int y_scatter = mlt_properties_get_double( mlt_filter_properties( filter ), "y_scatter" );
+ float scale = mlt_properties_get_double( mlt_filter_properties( filter ), "scale" );
+ float mix = mlt_properties_get_double( mlt_filter_properties( filter ), "mix" );
+ int invert = mlt_properties_get_int( mlt_filter_properties( filter ), "invert" );
+
+ // We'll process pixel by pixel
+ int x = 0;
+ int y = 0;
+
+ // We need to create a new frame as this effect modifies the input
+ uint8_t *temp = mlt_pool_alloc( *width * *height * 2 );
+ uint8_t *p = temp;
+ uint8_t *q = *image;
+
+ // Calculations are carried out on a 3x3 matrix
+ int matrix[ 3 ][ 3 ];
+
+ // Used to carry out the matrix calculations
+ int sum1;
+ int sum2;
+ float sum;
+
+ // Loop for each row
+ for ( y = 0; y < *height; y ++ )
+ {
+ // Loop for each pixel
+ for ( x = 0; x < *width; x ++ )
+ {
+ // Populate the matrix
+ matrix[ 0 ][ 0 ] = get_Y( *image, *width, *height, x - x_scatter, y - y_scatter );
+ matrix[ 0 ][ 1 ] = get_Y( *image, *width, *height, x , y - y_scatter );
+ matrix[ 0 ][ 2 ] = get_Y( *image, *width, *height, x + x_scatter, y - y_scatter );
+ matrix[ 1 ][ 0 ] = get_Y( *image, *width, *height, x - x_scatter, y );
+ matrix[ 1 ][ 2 ] = get_Y( *image, *width, *height, x + x_scatter, y );
+ matrix[ 2 ][ 0 ] = get_Y( *image, *width, *height, x - x_scatter, y + y_scatter );
+ matrix[ 2 ][ 1 ] = get_Y( *image, *width, *height, x , y + y_scatter );
+ matrix[ 2 ][ 2 ] = get_Y( *image, *width, *height, x + x_scatter, y + y_scatter );
+
+ // Do calculations
+ sum1 = (matrix[2][0] - matrix[0][0]) + 2*(matrix[2][1] - matrix[0][1]) + (matrix[2][2] - matrix[2][0]);
+ sum2 = (matrix[0][2] - matrix[0][0]) + 2*(matrix[1][2] - matrix[1][0]) + (matrix[2][2] - matrix[2][0]);
+ sum = scale * sqrti( sum1 * sum1 + sum2 * sum2 );
+
+ // Assign value
+ *p ++ = !invert ? ( sum >= 16 && sum <= 235 ? 251 - sum : sum < 16 ? 235 : 16 ) :
+ ( sum >= 16 && sum <= 235 ? sum : sum < 16 ? 16 : 235 );
+ q ++;
+ *p ++ = 128 + mix * ( *q ++ - 128 );
+ }
+ }
+
+ // Return the created image
+ *image = temp;
+
+ // Store new and destroy old
+ mlt_properties_set_data( mlt_frame_properties( this ), "image", *image, *width * *height * 2, mlt_pool_release, NULL );
+ }
+
+ return error;
+}
+
+/** Filter processing.
+*/
+
+static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
+{
+ // Push the frame filter
+ mlt_frame_push_service( frame, this );
+ mlt_frame_push_get_image( frame, filter_get_image );
+
+ return frame;
+}
+
+/** Constructor for the filter.
+*/
+
+mlt_filter filter_charcoal_init( char *arg )
+{
+ mlt_filter this = mlt_filter_new( );
+ if ( this != NULL )
+ {
+ this->process = filter_process;
+ mlt_properties_set( mlt_filter_properties( this ), "x_scatter", "1" );
+ mlt_properties_set( mlt_filter_properties( this ), "y_scatter", "1" );
+ mlt_properties_set( mlt_filter_properties( this ), "scale", "1.5" );
+ mlt_properties_set( mlt_filter_properties( this ), "mix", "0" );
+ }
+ return this;
+}
+
--- /dev/null
+/*
+ * filter_charcoal.h -- charcoal filter
+ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
+ * Author: Charles Yates <charles.yates@pandora.be>
+ *
+ * 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 program 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.
+ *
+ * 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.
+ */
+
+#ifndef _FILTER_CHARCOAL_H_
+#define _FILTER_CHARCOAL_H_
+
+#include <framework/mlt_filter.h>
+
+extern mlt_filter filter_charcoal_init( char *arg );
+
+#endif
--- /dev/null
+/*
+ * filter_invert.c -- invert filter
+ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
+ * Author: Charles Yates <charles.yates@pandora.be>
+ *
+ * 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 program 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.
+ *
+ * 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.
+ */
+
+#include "filter_invert.h"
+
+#include <framework/mlt_frame.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+/** Do it :-).
+*/
+
+static int filter_get_image( mlt_frame this, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
+{
+ // Get the image
+ int error = mlt_frame_get_image( this, image, format, width, height, 1 );
+
+ // Only process if we have no error and a valid colour space
+ if ( error == 0 && *format == mlt_image_yuv422 )
+ {
+ uint8_t *p = *image;
+ uint8_t *q = *image + *width * *height * 2;
+ uint8_t *r = *image;
+
+ while ( p != q )
+ {
+ *p ++ = 251 - *r ++;
+ *p ++ = 251 - *r ++;
+ }
+ }
+
+ return error;
+}
+
+/** Filter processing.
+*/
+
+static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
+{
+ // Push the frame filter
+ mlt_frame_push_get_image( frame, filter_get_image );
+ return frame;
+}
+
+/** Constructor for the filter.
+*/
+
+mlt_filter filter_invert_init( char *arg )
+{
+ mlt_filter this = mlt_filter_new( );
+ if ( this != NULL )
+ this->process = filter_process;
+ return this;
+}
+
--- /dev/null
+/*
+ * filter_invert.h -- invert filter
+ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
+ * Author: Charles Yates <charles.yates@pandora.be>
+ *
+ * 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 program 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.
+ *
+ * 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.
+ */
+
+#ifndef _FILTER_INVERT_H_
+#define _FILTER_INVERT_H_
+
+#include <framework/mlt_filter.h>
+
+extern mlt_filter filter_invert_init( char *arg );
+
+#endif
projects / mlt / commitdiff