research.m1stereo.tv/gitweb/ - melted/blob - mlt++/src/MltProducer.cpp

   1 /**
   2  * MltProducer.cpp - MLT Wrapper
   3  * Copyright (C) 2004-2005 Charles Yates
   4  * Author: Charles Yates <charles.yates@pandora.be>
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU Lesser General Public License as published
   8  * by the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  19  */
  20
  21 #include "MltProducer.h"
  22 #include "MltFilter.h"
  23 using namespace Mlt;
  24
  25 Producer::Producer( ) :
  26         instance( NULL )
  27 {
  28 }
  29
  30 Producer::Producer( char *id, char *service ) :
  31         instance( NULL )
  32 {
  33         if ( id != NULL && service != NULL )
  34                 instance = mlt_factory_producer( id, service );
  35         else
  36                 instance = mlt_factory_producer( "fezzik", id != NULL ? id : service );
  37 }
  38
  39 Producer::Producer( Service &producer ) :
  40         instance( NULL )
  41 {
  42         service_type type = producer.type( );
  43         if ( type == producer_type || type == playlist_type ||
  44                  type == tractor_type || type == multitrack_type )
  45         {
  46                 instance = ( mlt_producer )producer.get_service( );
  47                 inc_ref( );
  48         }
  49 }
  50
  51 Producer::Producer( mlt_producer producer ) :
  52         instance( producer )
  53 {
  54         inc_ref( );
  55 }
  56
  57 Producer::Producer( Producer &producer ) :
  58         instance( producer.get_producer( ) )
  59 {
  60         inc_ref( );
  61 }
  62
  63 Producer::~Producer( )
  64 {
  65         mlt_producer_close( instance );
  66 }
  67
  68 mlt_producer Producer::get_producer( )
  69 {
  70         return instance;
  71 }
  72
  73 mlt_service Producer::get_service( )
  74 {
  75         return mlt_producer_service( get_producer( ) );
  76 }
  77
  78 int Producer::seek( int position )
  79 {
  80         return mlt_producer_seek( get_producer( ), position );
  81 }
  82
  83 int Producer::position( )
  84 {
  85         return mlt_producer_position( get_producer( ) );
  86 }
  87
  88 int Producer::frame( )
  89 {
  90         return mlt_producer_frame( get_producer( ) );
  91 }
  92
  93 int Producer::set_speed( double speed )
  94 {
  95         return mlt_producer_set_speed( get_producer( ), speed );
  96 }
  97
  98 double Producer::get_speed( )
  99 {
 100         return mlt_producer_get_speed( get_producer( ) );
 101 }
 102
 103 double Producer::get_fps( )
 104 {
 105         return mlt_producer_get_fps( get_producer( ) );
 106 }
 107
 108 int Producer::set_in_and_out( int in, int out )
 109 {
 110         return mlt_producer_set_in_and_out( get_producer( ), in, out );
 111 }
 112
 113 int Producer::get_in( )
 114 {
 115         return mlt_producer_get_in( get_producer( ) );
 116 }
 117
 118 int Producer::get_out( )
 119 {
 120         return mlt_producer_get_out( get_producer( ) );
 121 }
 122
 123 int Producer::get_length( )
 124 {
 125         return mlt_producer_get_length( get_producer( ) );
 126 }
 127
 128 int Producer::get_playtime( )
 129 {
 130         return mlt_producer_get_playtime( get_producer( ) );
 131 }
 132
 133 Producer *Producer::cut( int in, int out )
 134 {
 135         mlt_producer producer = mlt_producer_cut( get_producer( ), in, out );
 136         Producer *result = new Producer( producer );
 137         mlt_producer_close( producer );
 138         return result;
 139 }
 140