* 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 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 program is distributed in the hope that it will be useful,
+ * 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 General Public License for more details.
+ * 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 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.
+ * 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 "config.h"
this->child = child;
if ( mlt_service_init( service, this ) == 0 )
{
- mlt_properties properties = mlt_service_properties( service );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( service );
// Override the get_frame method
service->get_frame = filter_get_frame;
+ // Define the destructor
+ service->close = ( mlt_destructor )mlt_filter_close;
+ service->close_object = this;
+
// Default in, out, track properties
- mlt_properties_set_timecode( properties, "in", 0 );
- mlt_properties_set_timecode( properties, "out", 0 );
+ mlt_properties_set_position( properties, "in", 0 );
+ mlt_properties_set_position( properties, "out", 0 );
mlt_properties_set_int( properties, "track", 0 );
return 0;
return 1;
}
+/** Create a new filter.
+*/
+
+mlt_filter mlt_filter_new( )
+{
+ mlt_filter this = calloc( 1, sizeof( struct mlt_filter_s ) );
+ if ( this != NULL )
+ mlt_filter_init( this, NULL );
+ return this;
+}
+
/** Get the service associated to this filter
*/
mlt_service mlt_filter_service( mlt_filter this )
{
- return &this->parent;
+ return this != NULL ? &this->parent : NULL;
}
+/** Get the properties associated to this filter.
+*/
+
mlt_properties mlt_filter_properties( mlt_filter this )
{
- return mlt_service_properties( mlt_filter_service( this ) );
+ return MLT_SERVICE_PROPERTIES( MLT_FILTER_SERVICE( this ) );
}
/** Connect this filter to a producers track. Note that a filter only operates
// If the connection was successful, grab the producer, track and reset in/out
if ( ret == 0 )
{
- mlt_properties properties = mlt_service_properties( &this->parent );
- this->producer = producer;
- mlt_properties_set_timecode( properties, "in", 0 );
- mlt_properties_set_timecode( properties, "out", 0 );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( &this->parent );
+ mlt_properties_set_position( properties, "in", 0 );
+ mlt_properties_set_position( properties, "out", 0 );
mlt_properties_set_int( properties, "track", index );
}
/** Tune the in/out points.
*/
-void mlt_filter_set_in_and_out( mlt_filter this, mlt_timecode in, mlt_timecode out )
+void mlt_filter_set_in_and_out( mlt_filter this, mlt_position in, mlt_position out )
{
- mlt_properties properties = mlt_service_properties( &this->parent );
- mlt_properties_set_timecode( properties, "in", in );
- mlt_properties_set_timecode( properties, "out", out );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( &this->parent );
+ mlt_properties_set_position( properties, "in", in );
+ mlt_properties_set_position( properties, "out", out );
}
/** Return the track that this filter is operating on.
int mlt_filter_get_track( mlt_filter this )
{
- mlt_properties properties = mlt_service_properties( &this->parent );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( &this->parent );
return mlt_properties_get_int( properties, "track" );
}
/** Get the in point.
*/
-mlt_timecode mlt_filter_get_in( mlt_filter this )
+mlt_position mlt_filter_get_in( mlt_filter this )
{
- mlt_properties properties = mlt_service_properties( &this->parent );
- return mlt_properties_get_timecode( properties, "in" );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( &this->parent );
+ return mlt_properties_get_position( properties, "in" );
}
/** Get the out point.
*/
-mlt_timecode mlt_filter_get_out( mlt_filter this )
+mlt_position mlt_filter_get_out( mlt_filter this )
{
- mlt_properties properties = mlt_service_properties( &this->parent );
- return mlt_properties_get_timecode( properties, "out" );
+ mlt_properties properties = MLT_SERVICE_PROPERTIES( &this->parent );
+ return mlt_properties_get_position( properties, "out" );
}
/** Process the frame.
*/
-static mlt_frame filter_process( mlt_filter this, mlt_frame frame )
+mlt_frame mlt_filter_process( mlt_filter this, mlt_frame frame )
{
- if ( this->process == NULL )
+ int disable = mlt_properties_get_int( MLT_FILTER_PROPERTIES( this ), "disable" );
+ if ( disable || this->process == NULL )
return frame;
else
return this->process( this, frame );
int in = mlt_filter_get_in( this );
int out = mlt_filter_get_out( this );
+ // Get the producer this is connected to
+ mlt_service producer = mlt_service_producer( &this->parent );
+
// If the frame request is for this filters track, we need to process it
- if ( index == track )
+ if ( index == track || track == -1 )
{
- int ret = mlt_service_get_frame( this->producer, frame, index );
+ int ret = mlt_service_get_frame( producer, frame, index );
if ( ret == 0 )
{
- if ( !mlt_frame_is_test_card( *frame ) )
- {
- mlt_timecode timecode = mlt_frame_get_timecode( *frame );
- if ( timecode >= in && ( out == 0 || timecode < out ) )
- *frame = filter_process( this, *frame );
- }
+ mlt_position position = mlt_frame_get_position( *frame );
+ if ( position >= in && ( out == 0 || position <= out ) )
+ *frame = mlt_filter_process( this, *frame );
return 0;
}
else
}
else
{
- return mlt_service_get_frame( this->producer, frame, index );
+ return mlt_service_get_frame( producer, frame, index );
}
}
void mlt_filter_close( mlt_filter this )
{
- if ( this->close != NULL )
- this->close( this );
- else
- mlt_service_close( &this->parent );
+ if ( this != NULL && mlt_properties_dec_ref( MLT_FILTER_PROPERTIES( this ) ) <= 0 )
+ {
+ if ( this->close != NULL )
+ {
+ this->close( this );
+ }
+ else
+ {
+ this->parent.close = NULL;
+ mlt_service_close( &this->parent );
+ }
+ free( this );
+ }
}
-
projects / mlt / blobdiff