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81 lines
2.7 KiB
81 lines
2.7 KiB
/**
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* MltGeometry.h - MLT Wrapper
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* Copyright (C) 2004-2005 Charles Yates
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* Author: Charles Yates <charles.yates@pandora.be>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published
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* by the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef _MLTPP_GEOMETRY_H
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#define _MLTPP_GEOMETRY_H
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#include "config.h"
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#include <framework/mlt.h>
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namespace Mlt
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{
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// Just for consistent naming purposes
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class MLTPP_DECLSPEC GeometryItem
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{
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private:
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struct mlt_geometry_item_s item;
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public:
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mlt_geometry_item get_item( ) { return &item; }
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bool key( ) { return item.key != 0; }
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int frame( ) { return item.frame; }
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void frame( int value ) { item.frame = value; }
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float x( ) { return item.x; }
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void x( float value ) { item.f[0] = 1; item.x = value; }
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float y( ) { return item.y; }
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void y( float value ) { item.f[1] = 1; item.y = value; }
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float w( ) { return item.w; }
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void w( float value ) { item.f[2] = 1; item.w = value; }
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float h( ) { return item.h; }
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void h( float value ) { item.f[3] = 1; item.h = value; }
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float mix( ) { return item.mix; }
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void mix( float value ) { item.f[4] = 1; item.mix = value; }
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};
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class MLTPP_DECLSPEC Geometry
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{
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private:
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mlt_geometry geometry;
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public:
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Geometry( char *data = NULL, int length = 0, int nw = -1, int nh = -1 );
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~Geometry( );
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int parse( char *data, int length, int nw = -1, int nh = -1 );
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// Fetch a geometry item for an absolute position
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int fetch( GeometryItem &item, float position );
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int fetch( GeometryItem *item, float position );
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// Specify a geometry item at an absolute position
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int insert( GeometryItem &item );
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int insert( GeometryItem *item );
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// Remove the key at the specified position
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int remove( int position );
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// Get the key at the position or the next following
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int next_key( GeometryItem &item, int position );
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int next_key( GeometryItem *item, int position );
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int prev_key( GeometryItem &item, int position );
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int prev_key( GeometryItem *item, int position );
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// Serialise the current geometry
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char *serialise( int in, int out );
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char *serialise( );
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};
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}
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#endif
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