mltpp/src/MltProducer.cpp

/**
 * MltProducer.cpp - MLT Wrapper
 * Copyright (C) 2004-2005 Charles Yates
 * 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 Lesser 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 */

#include "MltProducer.h"
#include "MltFilter.h"
using namespace Mlt;

Producer::Producer( ) :
	instance( NULL ),
	parent_( NULL )
{
}

Producer::Producer( char *id, char *service ) :
	instance( NULL ),
	parent_( NULL )
{
	if ( id != NULL && service != NULL )
		instance = mlt_factory_producer( id, service );
	else
		instance = mlt_factory_producer( "fezzik", id != NULL ? id : service );
}

Producer::Producer( Service &producer ) :
	instance( NULL ),
	parent_( NULL )
{
	mlt_service_type type = producer.type( );
	if ( type == producer_type || type == playlist_type || 
		 type == tractor_type || type == multitrack_type )
	{
		instance = ( mlt_producer )producer.get_service( );
		inc_ref( );
	}
}

Producer::Producer( mlt_producer producer ) :
	instance( producer ),
	parent_( NULL )
{
	inc_ref( );
}

Producer::Producer( Producer &producer ) :
	instance( producer.get_producer( ) ),
	parent_( NULL )
{
	inc_ref( );
}

Producer::Producer( Producer *producer ) :
	instance( producer != NULL ? producer->get_producer( ) : NULL ),
	parent_( NULL )
{
	if ( is_valid( ) )
		inc_ref( );
}

Producer::~Producer( )
{
	delete parent_;
	mlt_producer_close( instance );
	instance = NULL;
}

mlt_producer Producer::get_producer( )
{
	return instance;
}

mlt_producer Producer::get_parent( )
{
	return get_producer( ) != NULL && mlt_producer_cut_parent( get_producer( ) ) != NULL ? mlt_producer_cut_parent( get_producer( ) ) : get_producer( );
}

Producer &Producer::parent( )
{
	if ( is_cut( ) && parent_ == NULL )
		parent_ = new Producer( get_parent( ) );
	return parent_ == NULL ? *this : *parent_;
}

mlt_service Producer::get_service( )
{
	return mlt_producer_service( get_producer( ) );
}
	
int Producer::seek( int position )
{
	return mlt_producer_seek( get_producer( ), position );
}

int Producer::position( )
{
	return mlt_producer_position( get_producer( ) );
}

int Producer::frame( )
{
	return mlt_producer_frame( get_producer( ) );
}

int Producer::set_speed( double speed )
{
	return mlt_producer_set_speed( get_producer( ), speed );
}

double Producer::get_speed( )
{
	return mlt_producer_get_speed( get_producer( ) );
}

double Producer::get_fps( )
{
	return mlt_producer_get_fps( get_producer( ) );
}

int Producer::set_in_and_out( int in, int out )
{
	return mlt_producer_set_in_and_out( get_producer( ), in, out );
}

int Producer::get_in( )
{
	return mlt_producer_get_in( get_producer( ) );
}

int Producer::get_out( )
{
	return mlt_producer_get_out( get_producer( ) );
}

int Producer::get_length( )
{
	return mlt_producer_get_length( get_producer( ) );
}

int Producer::get_playtime( )
{
	return mlt_producer_get_playtime( get_producer( ) );
}

Producer *Producer::cut( int in, int out )
{
	mlt_producer producer = mlt_producer_cut( get_producer( ), in, out );
	Producer *result = new Producer( producer );
	mlt_producer_close( producer );
	return result;
}

bool Producer::is_cut( )
{
	return mlt_producer_is_cut( get_producer( ) ) != 0;
}

bool Producer::is_blank( )
{
	return mlt_producer_is_blank( get_producer( ) ) != 0;
}

bool Producer::same_clip( Producer &that )
{
	return mlt_producer_cut_parent( get_producer( ) ) == mlt_producer_cut_parent( that.get_producer( ) );
}

bool Producer::runs_into( Producer &that )
{
	return same_clip( that ) && get_out( ) == ( that.get_in( ) - 1 );
}

void Producer::optimise( )
{
	mlt_producer_optimise( get_producer( ) );
}