--- /dev/null
+/*
+ * producer_sdl_image.c -- Image loader which wraps SDL_image
+ * Copyright (C) 2005 Visual Media FX
+ * Author: Charles Yates <charles.yates@gmail.com>
+ *
+ * This program 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 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 "producer_sdl_image.h"
+#include <framework/mlt_frame.h>
+#include <framework/mlt_pool.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <dirent.h>
+#include <math.h>
+
+#include <SDL_image.h>
+
+static int producer_get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
+{
+ mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
+ SDL_Surface *surface = mlt_properties_get_data( properties, "surface", NULL );
+ uint8_t *alpha;
+
+ *width = surface->w;
+ *height = surface->h;
+ *format = mlt_image_yuv422;
+ *image = mlt_pool_alloc( *width * *height * 2 );
+ alpha = mlt_pool_alloc( *width * *height );
+
+ switch( surface->format->BitsPerPixel )
+ {
+ case 32:
+ mlt_convert_rgb24a_to_yuv422( surface->pixels, *width, *height, surface->pitch, *image, alpha );
+ break;
+ case 24:
+ mlt_convert_rgb24_to_yuv422( surface->pixels, *width, *height, surface->pitch, *image );
+ memset( alpha, 255, *width * *height );
+ break;
+ default:
+ break;
+ }
+
+ // Update the frame
+ mlt_properties_set_data( properties, "image", *image, *width * *height * 2, mlt_pool_release, NULL );
+ mlt_properties_set_data( properties, "alpha", alpha, *width * *height, mlt_pool_release, NULL );
+ mlt_properties_set_int( properties, "width", *width );
+ mlt_properties_set_int( properties, "height", *height );
+
+ return 0;
+}
+
+static int filter_files( const struct dirent *de )
+{
+ return de->d_name[ 0 ] != '.';
+}
+
+static mlt_properties parse_file_names( char *resource )
+{
+ mlt_properties properties = mlt_properties_new( );
+
+ if ( strstr( resource, "/.all." ) != NULL )
+ {
+ char *dir_name = strdup( resource );
+ char *extension = strrchr( resource, '.' );
+ *( strstr( dir_name, "/.all." ) + 1 ) = '\0';
+ char fullname[ 1024 ];
+ strcpy( fullname, dir_name );
+ struct dirent **de = NULL;
+ int n = scandir( fullname, &de, filter_files, alphasort );
+ int i;
+ struct stat info;
+
+ for (i = 0; i < n; i++ )
+ {
+ snprintf( fullname, 1023, "%s%s", dir_name, de[i]->d_name );
+ if ( strstr( fullname, extension ) && lstat( fullname, &info ) == 0 &&
+ ( S_ISREG( info.st_mode ) || info.st_mode | S_IXUSR ) )
+ {
+ char temp[ 20 ];
+ sprintf( temp, "%d", i );
+ mlt_properties_set( properties, temp, fullname );
+ }
+ free( de[ i ] );
+ }
+
+ free( de );
+ free( dir_name );
+ }
+ else
+ {
+ mlt_properties_set( properties, "0", resource );
+ }
+
+ return properties;
+}
+
+static SDL_Surface *load_image( mlt_producer producer )
+{
+ mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
+ char *resource = mlt_properties_get( properties, "resource" );
+ char *last_resource = mlt_properties_get( properties, "_last_resource" );
+ int image_idx = 0;
+ char *this_resource = NULL;
+ double ttl = mlt_properties_get_int( properties, "ttl" );
+ mlt_position position = mlt_producer_position( producer );
+ SDL_Surface *surface = mlt_properties_get_data( properties, "_surface", NULL );
+ mlt_properties filenames = mlt_properties_get_data( properties, "_filenames", NULL );
+
+ if ( filenames == NULL )
+ {
+ filenames = parse_file_names( resource );
+ mlt_properties_set_data( properties, "_surface", surface, 0, ( mlt_destructor )SDL_FreeSurface, 0 );
+ }
+
+ image_idx = ( int )floor( ( double )position / ttl ) % mlt_properties_count( filenames );
+ this_resource = mlt_properties_get_value( filenames, image_idx );
+
+ if ( last_resource == NULL || strcmp( last_resource, this_resource ) )
+ {
+ surface = IMG_Load( this_resource );
+ if ( surface != NULL )
+ {
+ surface->refcount ++;
+ mlt_properties_set_data( properties, "_surface", surface, 0, ( mlt_destructor )SDL_FreeSurface, 0 );
+ mlt_properties_set( properties, "_last_resource", this_resource );
+ }
+ }
+ else if ( surface != NULL )
+ {
+ surface->refcount ++;
+ }
+
+ return surface;
+}
+
+static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
+{
+ // Generate a frame
+ *frame = mlt_frame_init( );
+
+ if ( *frame != NULL )
+ {
+ // Create the surface for the current image
+ SDL_Surface *surface = load_image( producer );
+
+ if ( surface != NULL )
+ {
+ // Obtain properties of frame and producer
+ mlt_properties properties = MLT_FRAME_PROPERTIES( *frame );
+
+ // Obtain properties of producer
+ mlt_properties producer_props = MLT_PRODUCER_PROPERTIES( producer );
+
+ // Update timecode on the frame we're creating
+ mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
+
+ // Set producer-specific frame properties
+ mlt_properties_set_int( properties, "progressive", 1 );
+ mlt_properties_set_double( properties, "aspect_ratio", mlt_properties_get_double( producer_props, "aspect_ratio" ) );
+ mlt_properties_set_data( properties, "surface", surface, 0, ( mlt_destructor )SDL_FreeSurface, NULL );
+ mlt_properties_set_int( properties, "real_width", surface->w );
+ mlt_properties_set_int( properties, "real_height", surface->h );
+
+ // Push the get_image method
+ mlt_frame_push_get_image( *frame, producer_get_image );
+ }
+ }
+
+ // Calculate the next timecode
+ mlt_producer_prepare_next( producer );
+
+ return 0;
+}
+
+static void producer_close( mlt_producer producer )
+{
+ producer->close = NULL;
+ mlt_producer_close( producer );
+ free( producer );
+}
+
+mlt_producer producer_sdl_image_init( char *file )
+{
+ mlt_producer producer = calloc( 1, sizeof( struct mlt_producer_s ) );
+ if ( producer != NULL && mlt_producer_init( producer, NULL ) == 0 )
+ {
+ // Get the properties interface
+ mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
+
+ // Callback registration
+ producer->get_frame = producer_get_frame;
+ producer->close = ( mlt_destructor )producer_close;
+
+ // Set the default properties
+ mlt_properties_set( properties, "resource", file );
+ mlt_properties_set( properties, "_resource", "" );
+ mlt_properties_set_double( properties, "aspect_ratio", 1 );
+ mlt_properties_set_int( properties, "ttl", 25 );
+ mlt_properties_set_int( properties, "progressive", 1 );
+
+ return producer;
+ }
+ free( producer );
+ return NULL;
+}
+
+
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