+++ /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 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 <framework/mlt_producer.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 );
- SDL_Surface *converted = 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 );
-
- if ( surface->format->BitsPerPixel != 32 && surface->format->BitsPerPixel != 24 )
- {
- SDL_PixelFormat fmt;
- fmt.BitsPerPixel = 24;
- fmt.BytesPerPixel = 3;
- fmt.Rshift = 16;
- fmt.Gshift = 8;
- fmt.Bshift = 0;
- fmt.Rmask = 0xff << 16;
- fmt.Gmask = 0xff << 8;
- fmt.Bmask = 0xff;
- converted = SDL_ConvertSurface( surface, &fmt, 0 );
- }
-
- 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:
- mlt_convert_rgb24_to_yuv422( converted->pixels, *width, *height, converted->pitch, *image );
- memset( alpha, 255, *width * *height );
- break;
- }
-
- if ( converted )
- SDL_FreeSurface( converted );
-
- // 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 );
- }
-
- if ( mlt_properties_count( filenames ) )
- {
- image_idx = ( int )floor( ( double )position / ttl ) % mlt_properties_count( filenames );
- this_resource = mlt_properties_get_value( filenames, image_idx );
-
- if ( surface == NULL || 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 );
- mlt_properties_set_int( properties, "_real_width", surface->w );
- mlt_properties_set_int( properties, "_real_height", surface->h );
- }
- }
- 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( MLT_PRODUCER_SERVICE( producer ) );
-
- 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( mlt_profile profile, mlt_service_type type, const char *id, 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 );
-
- // Validate the resource
- SDL_Surface *surface = NULL;
- if ( file && ( surface = load_image( producer ) ) )
- {
- SDL_FreeSurface( surface );
- mlt_properties_set_data( properties, "_surface", NULL, 0, NULL, NULL );
- }
- else
- {
- producer_close( producer );
- producer = NULL;
- }
- return producer;
- }
- free( producer );
- return NULL;
-}
-
-
projects / melted / blobdiff