/**
 * mlt.i - Swig Bindings for mlt++
 * Copyright (C) 2004-2021 Meltytech, LLC
 *
 * 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.
 */

%module mlt
%include "carrays.i"
%array_class(unsigned char, UnsignedCharArray);

%{
#include <mlt++/Mlt.h>
int mlt_log_get_level( void );
void mlt_log_set_level( int );
%}

/** These methods return objects which should be gc'd.
 */

namespace Mlt {
%newobject Factory::init( const char * );
%newobject Factory::producer( Profile &, char *, char * );
%newobject Factory::filter( Profile &, char *, char * );
%newobject Factory::transition( Profile &, char *, char * );
%newobject Factory::consumer( Profile &, char *, char * );
%newobject Properties::listen( const char *, void *, mlt_listener );
%newobject Properties::setup_wait_for( const char * );
%newobject Properties::parse_yaml( const char * );
%newobject Service::producer( );
%newobject Service::consumer( );
%newobject Service::get_frame( int );
%newobject Service::filter( int );
%newobject Producer::filter( int );
%newobject Producer::cut( int, int );
%newobject Playlist::current( );
%newobject Playlist::clip_info( int );
%newobject Playlist::get_clip( int );
%newobject Multitrack::track( int );
%newobject Tractor::multitrack( );
%newobject Tractor::field( );
%newobject Tractor::track( int );
%newobject Frame::get_original_producer( );
%newobject Repository::consumers( );
%newobject Repository::filters( );
%newobject Repository::producers( );
%newobject Repository::transitions( );
%newobject Repository::metadata( mlt_service_type, const char * );
%newobject Repository::languages( );
%newobject Profile::list();
%newobject Repository::presets();
%newobject Properties::get_anim();
%newobject Animation::Animation();

%rename(__assign__) Animation::operator=;
%rename(__assign__) Frame::operator=;

#if defined(SWIGPYTHON)
%feature("shadow") Frame::get_waveform(int, int) %{
    def get_waveform(*args): return _mlt7.frame_get_waveform(*args)
%}
%feature("shadow") Frame::get_image(mlt_image_format&, int&, int&) %{
    def get_image(*args): return _mlt7.frame_get_image(*args)
%}
#endif

}

/** Classes to wrap.
 */

%include <framework/mlt_types.h>
%include <framework/mlt_factory.h>
%include <framework/mlt_version.h>
int mlt_log_get_level( void );
void mlt_log_set_level( int );
%include <MltFactory.h>
%include <MltRepository.h>
%include <MltEvent.h>
%include <MltProperties.h>
%include <MltFrame.h>
%include <MltService.h>
%include <MltProducer.h>
%include <MltProfile.h>
%include <MltPlaylist.h>
%include <MltConsumer.h>
%include <MltFilter.h>
%include <MltTransition.h>
%include <MltMultitrack.h>
%include <MltField.h>
%include <MltTractor.h>
%include <MltParser.h>
%include <MltFilteredConsumer.h>
%include <MltAnimation.h>



#if defined(SWIGRUBY)

%{

static void ruby_listener( mlt_properties owner, void *object );

class RubyListener
{
	protected:
		VALUE callback;
		Mlt::Event *event;

	public:
		RubyListener( VALUE callback ) : callback( callback )
		{}

		RubyListener( Mlt::Properties &properties, char *id, VALUE callback ) :
			callback( callback )
		{
			event = properties.listen( id, this, ( mlt_listener )ruby_listener );
		}

		virtual ~RubyListener( )
		{
			delete event;
		}

		void mark( )
		{
			((void (*)(VALUE))(rb_gc_mark))( callback );
		}

		void doit( )
		{
        	ID method = rb_intern( "call" );
        	rb_funcall( callback, method, 0 );
    	}
};

static void ruby_listener( mlt_properties owner, void *object )
{
	RubyListener *o = static_cast< RubyListener * >( object );
	o->doit( );
}

void markRubyListener( void* p )
{
    RubyListener *o = static_cast<RubyListener*>( p );
    o->mark( );
}

static void on_playlist_next( mlt_properties owner, void *object, mlt_event_data );

class PlaylistNextListener : RubyListener
{
	private:
		Mlt::Event *event;

	public:
		PlaylistNextListener( Mlt::Properties *properties, VALUE callback )
			: RubyListener( callback )
		{
			event = properties->listen( "playlist-next", this, ( mlt_listener )on_playlist_next );
		}

		~PlaylistNextListener()
		{
			delete event;
		}

		void yield(const Mlt::EventData& eventData)
		{
			ID method = rb_intern( "call" );
			rb_funcall( callback, method, 1, INT2FIX( eventData.to_int() ) );
		}
};

static void on_playlist_next( mlt_properties owner, void *object, mlt_event_data event_data )
{
	PlaylistNextListener *o = static_cast< PlaylistNextListener * >( object );
	Mlt::EventData data(event_data);
	o->yield(data);
}

%}

// Ruby wrapper
%rename( Listener )  RubyListener;
%markfunc RubyListener "markRubyListener";
%markfunc PlaylistNextListener "markRubyListener";

class RubyListener
{
	public:
		RubyListener( Mlt::Properties &properties, char *id, VALUE callback );
};

class PlaylistNextListener
{
	public:
		PlaylistNextListener( Mlt::Properties *properties, VALUE proc );
};

#endif // SWIGGRUBY



#if defined(SWIGPYTHON)
%{
typedef struct {
	int size;
	char* data;
} binary_data;

binary_data frame_get_waveform( Mlt::Frame &frame, int w, int h )
{
	binary_data result = {
		w * h,
		(char*) frame.get_waveform( w, h )
	};
	return result;
}

binary_data frame_get_image( Mlt::Frame &frame, mlt_image_format format, int w, int h )
{
	binary_data result = {
		mlt_image_format_size( format, w, h, NULL ),
		(char*) frame.get_image( format, w, h )
	};
	return result;
}

%}

%typemap(out) binary_data {
        $result =
%#if PY_MAJOR_VERSION < 3
        PyString_FromStringAndSize(
%#else
        PyByteArray_FromStringAndSize(
%#endif
	$1.data, $1.size );
}

binary_data frame_get_waveform(Mlt::Frame&, int, int);
binary_data frame_get_image(Mlt::Frame&, mlt_image_format, int, int);

#endif
