+++ /dev/null
-/*
- * producer_pixbuf.c -- raster image loader based upon gdk-pixbuf
- * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
- * Author: Dan Dennedy <dan@dennedy.org>
- *
- * 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 "producer_pixbuf.h"
-#include <framework/mlt_frame.h>
-#include <gdk-pixbuf/gdk-pixbuf.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <unistd.h>
-#include <dirent.h>
-
-static int producer_get_frame( mlt_producer parent, mlt_frame_ptr frame, int index );
-static void producer_close( mlt_producer parent );
-
-typedef enum
-{
- SIGNAL_FORMAT_PAL,
- SIGNAL_FORMAT_NTSC
-} mlt_signal_format;
-
-static int filter_files( const struct dirent *de )
-{
- if ( de->d_name[ 0 ] != '.' )
- return 1;
- else
- return 0;
-}
-
-
-mlt_producer producer_pixbuf_init( char *filename )
-{
- producer_pixbuf this = calloc( sizeof( struct producer_pixbuf_s ), 1 );
- if ( filename != NULL && this != NULL && mlt_producer_init( &this->parent, this ) == 0 )
- {
- mlt_producer producer = &this->parent;
-
- producer->get_frame = producer_get_frame;
- producer->close = producer_close;
-
- // Get the properties interface
- mlt_properties properties = mlt_producer_properties( &this->parent );
-
- // Set the default properties
- mlt_properties_set( properties, "resource", filename );
- mlt_properties_set_int( properties, "video_standard", mlt_video_standard_pal );
- mlt_properties_set_double( properties, "ttl", 5 );
-
- // Obtain filenames
- if ( strchr( filename, '%' ) != NULL )
- {
- // handle picture sequences
- int i = 0;
- int gap = 0;
- char full[1024];
-
- while ( gap < 100 )
- {
- struct stat buf;
- snprintf( full, 1023, filename, i ++ );
- if ( stat( full, &buf ) == 0 )
- {
- this->filenames = realloc( this->filenames, sizeof( char * ) * ( this->count + 1 ) );
- this->filenames[ this->count ++ ] = strdup( full );
- gap = 0;
- }
- else
- {
- gap ++;
- }
- }
- mlt_properties_set_position( properties, "out", this->count * 25 );
- }
- else if ( strstr( filename, "/.all." ) != NULL )
- {
- char *dir_name = strdup( filename );
- char *extension = strrchr( filename, '.' );
- *( 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 ( lstat( fullname, &info ) == 0 &&
- ( S_ISREG( info.st_mode ) || ( strstr( fullname, extension ) && info.st_mode | S_IXUSR ) ) )
- {
- this->filenames = realloc( this->filenames, sizeof( char * ) * ( this->count + 1 ) );
- this->filenames[ this->count ++ ] = strdup( fullname );
- }
- free( de[ i ] );
- }
-
- mlt_properties_set_position( properties, "out", this->count * 25 );
- free( de );
- free( dir_name );
- }
- else
- {
- this->filenames = realloc( this->filenames, sizeof( char * ) * ( this->count + 1 ) );
- this->filenames[ this->count ++ ] = strdup( filename );
- mlt_properties_set_position( properties, "out", 25 );
- }
-
- // Initialise gobject types
- g_type_init();
-
- return producer;
- }
- free( this );
- return NULL;
-}
-
-static int producer_get_image( mlt_frame this, uint8_t **buffer, mlt_image_format *format, int *width, int *height, int writable )
-{
- // Obtain properties of frame
- mlt_properties properties = mlt_frame_properties( this );
-
- // May need to know the size of the image to clone it
- int size = 0;
-
- // Get the image
- uint8_t *image = mlt_properties_get_data( properties, "image", &size );
-
- // Get width and height
- *width = mlt_properties_get_int( properties, "width" );
- *height = mlt_properties_get_int( properties, "height" );
-
- // Clone if necessary
- // NB: Cloning is necessary with this producer (due to processing of images ahead of use)
- // The fault is not in the design of mlt, but in the implementation of pixbuf...
- //if ( writable )
- {
- size = *width * *height * 2;
-
- // Clone our image
- uint8_t *copy = malloc( size );
- memcpy( copy, image, size );
-
- // We're going to pass the copy on
- image = copy;
-
- // Now update properties so we free the copy after
- mlt_properties_set_data( properties, "image", copy, size, free, NULL );
- }
-
- // Pass on the image
- *buffer = image;
-
- return 0;
-}
-
-static uint8_t *producer_get_alpha_mask( mlt_frame this )
-{
- // Obtain properties of frame
- mlt_properties properties = mlt_frame_properties( this );
-
- // Return the alpha mask
- return mlt_properties_get_data( properties, "alpha", NULL );
-}
-
-static int producer_get_frame( mlt_producer producer, mlt_frame_ptr frame, int index )
-{
- producer_pixbuf this = producer->child;
- GdkPixbuf *pixbuf = NULL;
- GError *error = NULL;
-
- // Generate a frame
- *frame = mlt_frame_init( );
-
- // Obtain properties of frame
- mlt_properties properties = mlt_frame_properties( *frame );
-
- // Obtain properties of producer
- mlt_properties producer_props = mlt_producer_properties( producer );
-
- // Get the time to live for each frame
- double ttl = mlt_properties_get_double( producer_props, "ttl" );
-
- // Image index
- int image_idx = ( int )floor( mlt_producer_position( producer ) / ttl ) % this->count;
-
- // Update timecode on the frame we're creating
- mlt_frame_set_position( *frame, mlt_producer_position( producer ) );
-
- // optimization for subsequent iterations on single picture
- if ( this->image != NULL && image_idx == this->image_idx )
- {
- // Set width/height
- mlt_properties_set_int( properties, "width", this->width );
- mlt_properties_set_int( properties, "height", this->height );
-
- // Set the compositing properties
- if ( mlt_properties_get( producer_props, "x" ) != NULL )
- mlt_properties_set_int( properties, "x", mlt_properties_get_int( producer_props, "x" ) );
- if ( mlt_properties_get( producer_props, "y" ) != NULL )
- mlt_properties_set_int( properties, "y", mlt_properties_get_int( producer_props, "y" ) );
- if ( mlt_properties_get( producer_props, "mix" ) != NULL )
- mlt_properties_set_double( properties, "image.mix", mlt_properties_get_double( producer_props, "mix" ) );
-
- // if picture sequence pass the image and alpha data without destructor
- mlt_properties_set_data( properties, "image", this->image, 0, NULL, NULL );
- mlt_properties_set_data( properties, "alpha", this->alpha, 0, NULL, NULL );
-
- // Set alpha mask call back
- ( *frame )->get_alpha_mask = producer_get_alpha_mask;
-
- // Stack the get image callback
- mlt_frame_push_get_image( *frame, producer_get_image );
- }
- else
- {
- free( this->image );
- free( this->alpha );
- this->image_idx = image_idx;
- pixbuf = gdk_pixbuf_new_from_file( this->filenames[ image_idx ], &error );
- }
-
- // If we have a pixbuf
- if ( pixbuf )
- {
- // Scale to adjust for sample aspect ratio
- if ( mlt_properties_get_int( properties, "video_standard" ) == mlt_video_standard_pal )
- {
- GdkPixbuf *temp = pixbuf;
- GdkPixbuf *scaled = gdk_pixbuf_scale_simple( pixbuf,
- (gint) ( (float) gdk_pixbuf_get_width( pixbuf ) * 54.0/59.0),
- gdk_pixbuf_get_height( pixbuf ), GDK_INTERP_HYPER );
- pixbuf = scaled;
- g_object_unref( temp );
- }
- else
- {
- GdkPixbuf *temp = pixbuf;
- GdkPixbuf *scaled = gdk_pixbuf_scale_simple( pixbuf,
- (gint) ( (float) gdk_pixbuf_get_width( pixbuf ) * 11.0/10.0 ),
- gdk_pixbuf_get_height( pixbuf ), GDK_INTERP_HYPER );
- pixbuf = scaled;
- g_object_unref( temp );
- }
-
- // Store width and height
- this->width = gdk_pixbuf_get_width( pixbuf );
- this->height = gdk_pixbuf_get_height( pixbuf );
- this->width -= this->width % 4;
- this->height -= this->height % 2;
-
- // Allocate/define image and alpha
- uint8_t *image = malloc( this->width * this->height * 2 );
- uint8_t *alpha = NULL;
-
- // Extract YUV422 and alpha
- if ( gdk_pixbuf_get_has_alpha( pixbuf ) )
- {
- // Allocate the alpha mask
- alpha = malloc( this->width * this->height );
-
- // Convert the image
- mlt_convert_rgb24a_to_yuv422( gdk_pixbuf_get_pixels( pixbuf ),
- this->width, this->height,
- gdk_pixbuf_get_rowstride( pixbuf ),
- image, alpha );
- }
- else
- {
- // No alpha to extract
- mlt_convert_rgb24_to_yuv422( gdk_pixbuf_get_pixels( pixbuf ),
- this->width, this->height,
- gdk_pixbuf_get_rowstride( pixbuf ),
- image );
- }
-
- // Finished with pixbuf now
- g_object_unref( pixbuf );
-
- // Set width/height of frame
- mlt_properties_set_int( properties, "width", this->width );
- mlt_properties_set_int( properties, "height", this->height );
-
- // Set the compositing properties
- if ( mlt_properties_get( producer_props, "x" ) != NULL )
- mlt_properties_set_int( properties, "x", mlt_properties_get_int( producer_props, "x" ) );
- if ( mlt_properties_get( producer_props, "y" ) != NULL )
- mlt_properties_set_int( properties, "y", mlt_properties_get_int( producer_props, "y" ) );
- if ( mlt_properties_get( producer_props, "mix" ) != NULL )
- mlt_properties_set_double( properties, "mix", mlt_properties_get_double( producer_props, "mix" ) );
-
- // Pass alpha and image on properties with or without destructor
- this->image = image;
- this->alpha = alpha;
-
- // pass the image and alpha data without destructor
- mlt_properties_set_data( properties, "image", image, this->width * this->height * 2, NULL, NULL );
- mlt_properties_set_data( properties, "alpha", alpha, this->width * this->height, NULL, NULL );
-
- // Set alpha call back
- ( *frame )->get_alpha_mask = producer_get_alpha_mask;
-
- // 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 parent )
-{
- producer_pixbuf this = parent->child;
- if ( this->image )
- free( this->image );
- if ( this->alpha )
- free( this->alpha );
- parent->close = NULL;
- mlt_producer_close( parent );
- free( this );
-}
-
projects / mlt / blobdiff