+++ /dev/null
-/*
- * filter_affine.c -- affine filter
- * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
- * Author: Charles Yates <charles.yates@pandora.be>
- *
- * 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_filter.h>
-#include <framework/mlt.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 filter
- mlt_filter filter = mlt_frame_pop_service( this );
-
- // Get the properties
- mlt_properties properties = MLT_FILTER_PROPERTIES( filter );
-
- // Get the image
- int error = 0; //mlt_frame_get_image( this, image, format, width, height, 0 );
-
- // Only process if we have no error and a valid colour space
- if ( error == 0 && *format == mlt_image_yuv422 )
- {
- mlt_producer producer = mlt_properties_get_data( properties, "producer", NULL );
- mlt_transition transition = mlt_properties_get_data( properties, "transition", NULL );
- mlt_frame a_frame = NULL;
-
- if ( producer == NULL )
- {
- char *background = mlt_properties_get( properties, "background" );
- mlt_profile profile = mlt_service_profile( MLT_FILTER_SERVICE( filter ) );
- producer = mlt_factory_producer( profile, "fezzik", background );
- mlt_properties_set_data( properties, "producer", producer, 0, (mlt_destructor)mlt_producer_close, NULL );
- }
-
- if ( transition == NULL )
- {
- mlt_profile profile = mlt_service_profile( MLT_FILTER_SERVICE( filter ) );
- transition = mlt_factory_transition( profile, "affine", NULL );
- mlt_properties_set_data( properties, "transition", transition, 0, (mlt_destructor)mlt_transition_close, NULL );
- }
-
- if ( producer != NULL && transition != NULL )
- {
- char *name = mlt_properties_get( properties, "_unique_id" );
- mlt_position position = mlt_properties_get_position( MLT_FRAME_PROPERTIES( this ), name );
- mlt_properties frame_properties = MLT_FRAME_PROPERTIES( this );
- double consumer_ar = mlt_properties_get_double( frame_properties, "consumer_aspect_ratio" );
- mlt_properties_set_position( MLT_TRANSITION_PROPERTIES( transition ), "in", mlt_filter_get_in( filter ) );
- mlt_properties_set_position( MLT_TRANSITION_PROPERTIES( transition ), "out", mlt_filter_get_out( filter ) );
- mlt_producer_seek( producer, position );
- mlt_frame_set_position( this, position );
- mlt_properties_pass( MLT_PRODUCER_PROPERTIES( producer ), properties, "producer." );
- mlt_properties_pass( MLT_TRANSITION_PROPERTIES( transition ), properties, "transition." );
- mlt_service_get_frame( MLT_PRODUCER_SERVICE( producer ), &a_frame, 0 );
- mlt_properties_set( MLT_FRAME_PROPERTIES( a_frame ), "rescale.interp", "nearest" );
- mlt_properties_set_int( MLT_FRAME_PROPERTIES( a_frame ), "distort", 1 );
-
- // Special case - aspect_ratio = 0
- if ( mlt_properties_get_double( frame_properties, "aspect_ratio" ) == 0 )
- mlt_properties_set_double( frame_properties, "aspect_ratio", consumer_ar );
- if ( mlt_properties_get_double( MLT_FRAME_PROPERTIES( a_frame ), "aspect_ratio" ) == 0 )
- mlt_properties_set_double( MLT_FRAME_PROPERTIES( a_frame ), "aspect_ratio", consumer_ar );
- mlt_properties_set_double( MLT_FRAME_PROPERTIES( a_frame ), "consumer_aspect_ratio", consumer_ar );
-
- mlt_transition_process( transition, a_frame, this );
- mlt_frame_get_image( a_frame, image, format, width, height, writable );
- mlt_properties_set_data( frame_properties, "affine_frame", a_frame, 0, (mlt_destructor)mlt_frame_close, NULL );
- mlt_properties_set_data( frame_properties, "image", *image, *width * *height * 2, NULL, NULL );
- mlt_properties_set_data( frame_properties, "alpha", mlt_frame_get_alpha_mask( a_frame ), *width * *height, NULL, NULL );
- }
- }
-
- return error;
-}
-
-/** Filter processing.
-*/
-
-static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
-{
- // Get the properties of the frame
- mlt_properties properties = MLT_FRAME_PROPERTIES( frame );
-
- // Get a unique name to store the frame position
- char *name = mlt_properties_get( MLT_FILTER_PROPERTIES( this ), "_unique_id" );
-
- // Assign the current position to the name
- mlt_properties_set_position( properties, name, mlt_frame_get_position( frame ) - mlt_filter_get_in( this ) );
-
- // 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_affine_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
-{
- mlt_filter this = mlt_filter_new( );
- if ( this != NULL )
- {
- this->process = filter_process;
- mlt_properties_set( MLT_FILTER_PROPERTIES( this ), "background", "colour:black" );
- }
- return this;
-}
-
-
projects / melted / blobdiff