X-Git-Url: http://research.m1stereo.tv/gitweb?a=blobdiff_plain;f=src%2Fmodules%2Fplus%2Ffilter_affine.c;fp=src%2Fmodules%2Fplus%2Ffilter_affine.c;h=a37b0661e82a7e13b736cd0929935c415dfe0223;hb=dc6eb42c57d2f1111d87d8b9544e158b86a441f8;hp=0000000000000000000000000000000000000000;hpb=c0a066993bcef05ec6d3ef253e84e657e32f3dde;p=melted

diff --git a/src/modules/plus/filter_affine.c b/src/modules/plus/filter_affine.c
new file mode 100644
index 0000000..a37b066
--- /dev/null
+++ b/src/modules/plus/filter_affine.c
@@ -0,0 +1,109 @@
+/*
+ * filter_affine.c -- affine filter
+ * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
+ * Author: Charles Yates <charles.yates@pandora.be>
+ *
+ * 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 "filter_affine.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 = 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" );
+			producer = mlt_factory_producer( "fezzik", background );
+			mlt_properties_set_data( properties, "producer", producer, 0, (mlt_destructor)mlt_producer_close, NULL );
+		}
+
+		if ( transition == NULL )
+		{
+			transition = mlt_factory_transition( "affine", NULL );
+			mlt_properties_set_data( properties, "transition", transition, 0, (mlt_destructor)mlt_transition_close, NULL );
+		}
+
+		if ( producer != NULL && transition != NULL )
+		{
+			mlt_properties frame_properties = mlt_frame_properties( this );
+			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( mlt_frame_properties( a_frame ), "distort", "true" );
+			mlt_properties_set_double( mlt_frame_properties( a_frame ), "consumer_aspect_ratio", 
+									   mlt_properties_get_double( frame_properties, "consumer_aspect_ratio" ) );
+			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 );
+		}
+	}
+
+	return error;
+}
+
+/** Filter processing.
+*/
+
+static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
+{
+	// 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( 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" );
+		mlt_properties_set( mlt_filter_properties( this ), "transition.rotate", "10" );
+	}
+	return this;
+}
+
+