2 * producer_kdenlivetitle.c -- kdenlive producer
3 * Copyright (c) 2009 Marco Gittler <g.marco@freenet.de>
4 * Copyright (c) 2009 Jean-Baptiste Mardelle <jb@kdenlive.org>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
21 #include "kdenlivetitle_wrapper.h"
23 #include <framework/mlt.h>
28 void read_xml(mlt_properties properties)
30 FILE *f = fopen( mlt_properties_get( properties, "resource" ), "r");
36 fseek (f , 0 , SEEK_END);
40 char *infile = (char*) mlt_pool_alloc(lSize);
41 size=fread(infile,1,lSize,f);
44 mlt_properties_set(properties, "_xmldata", infile);
45 mlt_pool_release( infile );
49 static int producer_get_image( mlt_frame frame, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
51 /* Obtain properties of frame */
52 mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
54 /* Obtain the producer for this frame */
55 producer_ktitle this = mlt_properties_get_data( properties, "producer_kdenlivetitle", NULL );
57 /* Obtain properties of producer */
58 mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( &this->parent );
60 *width = mlt_properties_get_int( properties, "rescale_width" );
61 *height = mlt_properties_get_int( properties, "rescale_height" );
63 /* Allocate the image */
64 int size = *width * ( *height ) * 4;
66 mlt_service_lock( MLT_PRODUCER_SERVICE( &this->parent ) );
68 /* Allocate the image */
69 *format = mlt_image_rgb24a;
70 mlt_position time = mlt_producer_position( &this->parent ) + mlt_producer_get_in( &this->parent );
71 if ( mlt_properties_get_int( producer_props, "force_reload" ) ) {
72 if (mlt_properties_get_int( producer_props, "force_reload" ) > 1) read_xml(producer_props);
73 mlt_properties_set_int( producer_props, "force_reload", 0 );
74 drawKdenliveTitle( this, frame, *width, *height, time, 1);
76 else drawKdenliveTitle( this, frame, *width, *height, time, 0);
78 // Get width and height (may have changed during the refresh)
79 *width = mlt_properties_get_int( properties, "width" );
80 *height = mlt_properties_get_int( properties, "height" );
82 if ( this->current_image )
84 // Clone the image and the alpha
85 int image_size = this->current_width * ( this->current_height ) * 4;
86 uint8_t *image_copy = mlt_pool_alloc( image_size );
87 memcpy( image_copy, this->current_image, image_size );
88 // Now update properties so we free the copy after
89 mlt_properties_set_data( properties, "image", image_copy, image_size, mlt_pool_release, NULL );
90 // We're going to pass the copy on
93 /* Update the frame */
94 mlt_properties_set_data( properties, "image", *buffer, size, mlt_pool_release, NULL );
96 mlt_log_debug( MLT_PRODUCER_SERVICE( &this->parent ), "width:%d height:%d %s\n", *width, *height, mlt_image_format_name( *format ) );
99 mlt_service_unlock( MLT_PRODUCER_SERVICE( &this->parent ) );
104 static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
107 // Get the real structure for this producer
108 producer_ktitle this = producer->child;
110 /* Generate a frame */
111 *frame = mlt_frame_init( MLT_PRODUCER_SERVICE( producer ) );
113 if ( *frame != NULL )
115 /* Obtain properties of frame and producer */
116 mlt_properties properties = MLT_FRAME_PROPERTIES( *frame );
118 /* Obtain properties of producer */
119 mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
121 /* Set the producer on the frame properties */
122 mlt_properties_set_data( properties, "producer_kdenlivetitle", this, 0, NULL, NULL );
124 /* Update timecode on the frame we're creating */
125 mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
127 /* Set producer-specific frame properties */
128 mlt_profile profile = mlt_service_profile ( MLT_PRODUCER_SERVICE( producer ) ) ;
129 mlt_properties_set_int( properties, "progressive", ( profile ) ? profile->progressive : 1 );
130 mlt_properties_set_double( properties, "aspect_ratio", mlt_properties_get_double( producer_props, "aspect_ratio" ) );
132 /* Push the get_image method */
133 mlt_frame_push_get_image( *frame, producer_get_image );
136 /* Calculate the next timecode */
137 mlt_producer_prepare_next( producer );
142 static void producer_close( mlt_producer producer )
144 /* fprintf(stderr, ":::::::::::::: CLOSING TITLE\n"); */
145 producer->close = NULL;
146 mlt_producer_close( producer );
151 mlt_producer producer_kdenlivetitle_init( mlt_profile profile, mlt_service_type type, const char *id, char *filename )
153 /* fprintf(stderr, ":::::::::::: CREATE TITLE\n"); */
154 /* Create a new producer object */
156 producer_ktitle this = calloc( sizeof( struct producer_ktitle_s ), 1 );
157 if ( this != NULL && mlt_producer_init( &this->parent, this ) == 0 )
159 mlt_producer producer = &this->parent;
161 /* Get the properties interface */
162 mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
163 /* Callback registration */
164 producer->get_frame = producer_get_frame;
165 producer->close = ( mlt_destructor )producer_close;
166 mlt_properties_set( properties, "resource", filename );
167 //mlt_properties_set_int( properties, "aspect_ratio", 1 );
168 read_xml(properties);