+++ /dev/null
-/*
- * filter_watermark.c -- watermark 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_factory.h>
-#include <framework/mlt_frame.h>
-#include <framework/mlt_producer.h>
-#include <framework/mlt_transition.h>
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-
-/** Do it :-).
-*/
-
-static int filter_get_image( mlt_frame frame, uint8_t **image, mlt_image_format *format, int *width, int *height, int writable )
-{
- // Error we will return
- int error = 0;
-
- // Get the watermark filter object
- mlt_filter this = mlt_frame_pop_service( frame );
-
- // Get the properties of the filter
- mlt_properties properties = MLT_FILTER_PROPERTIES( this );
-
- // Get the producer from the filter
- mlt_producer producer = mlt_properties_get_data( properties, "producer", NULL );
-
- // Get the composite from the filter
- mlt_transition composite = mlt_properties_get_data( properties, "composite", NULL );
-
- // Get the resource to use
- char *resource = mlt_properties_get( properties, "resource" );
-
- // Get the old resource
- char *old_resource = mlt_properties_get( properties, "_old_resource" );
-
- // Create a composite if we don't have one
- if ( composite == NULL )
- {
- // Create composite via the factory
- mlt_profile profile = mlt_service_profile( MLT_FILTER_SERVICE( this ) );
- composite = mlt_factory_transition( profile, "composite", NULL );
-
- // Register the composite for reuse/destruction
- if ( composite != NULL )
- mlt_properties_set_data( properties, "composite", composite, 0, ( mlt_destructor )mlt_transition_close, NULL );
- }
-
- // If we have one
- if ( composite != NULL )
- {
- // Get the properties
- mlt_properties composite_properties = MLT_TRANSITION_PROPERTIES( composite );
-
- // Pass all the composite. properties on the filter down
- mlt_properties_pass( composite_properties, properties, "composite." );
-
- if ( mlt_properties_get( properties, "composite.out" ) == NULL )
- mlt_properties_set_int( composite_properties, "out", mlt_properties_get_int( properties, "_out" ) );
-
- // Force a refresh
- mlt_properties_set_int( composite_properties, "refresh", 1 );
- }
-
- // Create a producer if don't have one
- if ( producer == NULL || ( old_resource != NULL && strcmp( resource, old_resource ) ) )
- {
- // Get the factory producer service
- char *factory = mlt_properties_get( properties, "factory" );
-
- // Create the producer
- mlt_profile profile = mlt_service_profile( MLT_FILTER_SERVICE( this ) );
- producer = mlt_factory_producer( profile, factory, resource );
-
- // If we have one
- if ( producer != NULL )
- {
- // Register the producer for reuse/destruction
- mlt_properties_set_data( properties, "producer", producer, 0, ( mlt_destructor )mlt_producer_close, NULL );
-
- // Ensure that we loop
- mlt_properties_set( MLT_PRODUCER_PROPERTIES( producer ), "eof", "loop" );
-
- // Set the old resource
- mlt_properties_set( properties, "_old_resource", resource );
- }
- }
-
- if ( producer != NULL )
- {
- // Get the producer properties
- mlt_properties producer_properties = MLT_PRODUCER_PROPERTIES( producer );
-
- // Now pass all producer. properties on the filter down
- mlt_properties_pass( producer_properties, properties, "producer." );
- }
-
- // Only continue if we have both producer and composite
- if ( composite != NULL && producer != NULL )
- {
- // Get the service of the producer
- mlt_service service = MLT_PRODUCER_SERVICE( producer );
-
- // We will get the 'b frame' from the producer
- mlt_frame b_frame = NULL;
-
- // Get the unique id of the filter (used to reacquire the producer position)
- char *name = mlt_properties_get( properties, "_unique_id" );
-
- // Get the original producer position
- mlt_position position = mlt_properties_get_position( MLT_FRAME_PROPERTIES( frame ), name );
-
- // Make sure the producer is in the correct position
- mlt_producer_seek( producer, position );
-
- // Resetting position to appease the composite transition
- mlt_frame_set_position( frame, position );
-
- // Get the b frame and process with composite if successful
- if ( mlt_service_get_frame( service, &b_frame, 0 ) == 0 )
- {
- // Get the a and b frame properties
- mlt_properties a_props = MLT_FRAME_PROPERTIES( frame );
- mlt_properties b_props = MLT_FRAME_PROPERTIES( b_frame );
-
- // Set the b frame to be in the same position and have same consumer requirements
- mlt_frame_set_position( b_frame, position );
- mlt_properties_set_double( b_props, "consumer_aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
- mlt_properties_set_int( b_props, "consumer_deinterlace", mlt_properties_get_int( a_props, "consumer_deinterlace" ) || mlt_properties_get_int( properties, "deinterlace" ) );
- mlt_properties_set_double( b_props, "output_ratio", mlt_properties_get_double( a_props, "output_ratio" ) );
-
- // Check for the special case - no aspect ratio means no problem :-)
- if ( mlt_frame_get_aspect_ratio( b_frame ) == 0 )
- mlt_properties_set_double( b_props, "aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
- if ( mlt_frame_get_aspect_ratio( frame ) == 0 )
- mlt_properties_set_double( a_props, "aspect_ratio", mlt_properties_get_double( a_props, "consumer_aspect_ratio" ) );
-
- mlt_properties_set_int( b_props, "normalised_width", mlt_properties_get_int( a_props, "normalised_width" ) );
- mlt_properties_set_int( b_props, "normalised_height", mlt_properties_get_int( a_props, "normalised_height" ) );
-
- if ( mlt_properties_get_int( properties, "distort" ) )
- {
- mlt_properties_set_int( MLT_TRANSITION_PROPERTIES( composite ), "distort", 1 );
- mlt_properties_set_int( a_props, "distort", 1 );
- mlt_properties_set_int( b_props, "distort", 1 );
- }
-
- if ( mlt_properties_get_int( properties, "reverse" ) == 0 )
- {
- // Apply all filters that are attached to this filter to the b frame
- mlt_service_apply_filters( MLT_FILTER_SERVICE( this ), b_frame, 0 );
-
- // Process the frame
- mlt_transition_process( composite, frame, b_frame );
-
- // Get the image
- error = mlt_frame_get_image( frame, image, format, width, height, 1 );
- }
- else
- {
- char temp[ 132 ];
- int count = 0;
- uint8_t *alpha = NULL;
- const char *rescale = mlt_properties_get( a_props, "rescale.interp" );
- if ( rescale == NULL || !strcmp( rescale, "none" ) )
- rescale = "hyper";
- mlt_transition_process( composite, b_frame, frame );
- mlt_properties_set_int( a_props, "consumer_deinterlace", 1 );
- mlt_properties_set_int( b_props, "consumer_deinterlace", 1 );
- mlt_properties_set( a_props, "rescale.interp", rescale );
- mlt_properties_set( b_props, "rescale.interp", rescale );
- mlt_service_apply_filters( MLT_FILTER_SERVICE( this ), b_frame, 0 );
- error = mlt_frame_get_image( b_frame, image, format, width, height, 1 );
- alpha = mlt_frame_get_alpha_mask( b_frame );
- mlt_properties_set_data( a_props, "image", *image, *width * *height * 2, NULL, NULL );
- mlt_properties_set_data( a_props, "alpha", alpha, *width * *height, NULL, NULL );
- mlt_properties_set_int( a_props, "width", *width );
- mlt_properties_set_int( a_props, "height", *height );
- mlt_properties_set_int( a_props, "progressive", 1 );
- mlt_properties_inc_ref( b_props );
- strcpy( temp, "_b_frame" );
- while( mlt_properties_get_data( a_props, temp, NULL ) != NULL )
- sprintf( temp, "_b_frame%d", count ++ );
- mlt_properties_set_data( a_props, temp, b_frame, 0, ( mlt_destructor )mlt_frame_close, NULL );
- }
- }
-
- // Close the b frame
- mlt_frame_close( b_frame );
- }
- else
- {
- // Get the image from the frame without running fx
- error = mlt_frame_get_image( frame, image, format, width, height, 1 );
- }
-
- 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 frame out point to the filter (just in case we need it later)
- mlt_properties_set_int( MLT_FILTER_PROPERTIES( this ), "_out", mlt_properties_get_int( properties, "out" ) );
-
- // 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 filter on to the stack
- mlt_frame_push_service( frame, this );
-
- // Push the get_image on to the stack
- mlt_frame_push_get_image( frame, filter_get_image );
-
- return frame;
-}
-
-/** Constructor for the filter.
-*/
-
-mlt_filter filter_watermark_init( mlt_profile profile, mlt_service_type type, const char *id, char *arg )
-{
- mlt_filter this = mlt_filter_new( );
- if ( this != NULL )
- {
- mlt_properties properties = MLT_FILTER_PROPERTIES( this );
- this->process = filter_process;
- mlt_properties_set( properties, "factory", "fezzik" );
- if ( arg != NULL )
- mlt_properties_set( properties, "resource", arg );
- // Ensure that attached filters are handled privately
- mlt_properties_set_int( properties, "_filter_private", 1 );
- }
- return this;
-}
-
projects / melted / blobdiff