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

   1 /**
   2  * MltConsumer.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 <stdlib.h>
  22 #include <string.h>
  23 #include "MltConsumer.h"
  24 #include "MltEvent.h"
  25 using namespace Mlt;
  26
  27 Consumer::Consumer( ) :
  28         instance( NULL )
  29 {
  30         instance = mlt_factory_consumer( NULL, NULL );
  31 }
  32
  33 Consumer::Consumer( char *id, char *arg ) :
  34         instance( NULL )
  35 {
  36         if ( id == NULL || arg != NULL )
  37         {
  38                 instance = mlt_factory_consumer( id, arg );
  39         }
  40         else
  41         {
  42                 if ( strchr( id, ':' ) )
  43                 {
  44                         char *temp = strdup( id );
  45                         char *arg = strchr( temp, ':' ) + 1;
  46                         *( arg - 1 ) = '\0';
  47                         instance = mlt_factory_consumer( temp, arg );
  48                         free( temp );
  49                 }
  50                 else
  51                 {
  52                         instance = mlt_factory_consumer( id, NULL );
  53                 }
  54         }
  55 }
  56
  57 Consumer::Consumer( Service &consumer ) :
  58         instance( NULL )
  59 {
  60         if ( consumer.type( ) == consumer_type )
  61         {
  62                 instance = ( mlt_consumer )consumer.get_service( );
  63                 inc_ref( );
  64         }
  65 }
  66
  67 Consumer::Consumer( Consumer &consumer ) :
  68         instance( consumer.get_consumer( ) )
  69 {
  70         inc_ref( );
  71 }
  72
  73 Consumer::Consumer( mlt_consumer consumer ) :
  74         instance( consumer )
  75 {
  76         inc_ref( );
  77 }
  78
  79 Consumer::~Consumer( )
  80 {
  81         mlt_consumer_close( instance );
  82 }
  83
  84 mlt_consumer Consumer::get_consumer( )
  85 {
  86         return instance;
  87 }
  88
  89 mlt_service Consumer::get_service( )
  90 {
  91         return mlt_consumer_service( get_consumer( ) );
  92 }
  93
  94 int Consumer::connect( Service &service )
  95 {
  96         return connect_producer( service );
  97 }
  98
  99 int Consumer::start( )
 100 {
 101         return mlt_consumer_start( get_consumer( ) );
 102 }
 103
 104 void Consumer::purge( )
 105 {
 106         mlt_consumer_purge( get_consumer( ) );
 107 }
 108
 109 int Consumer::stop( )
 110 {
 111         return mlt_consumer_stop( get_consumer( ) );
 112 }
 113
 114 bool Consumer::is_stopped( )
 115 {
 116         return mlt_consumer_is_stopped( get_consumer( ) ) != 0;
 117 }
 118
 119 int Consumer::run( )
 120 {
 121         int ret = start( );
 122         if ( !is_stopped( ) )
 123         {
 124                 Event *e = setup_wait_for( "consumer-stopped" );
 125                 wait_for( e );
 126                 delete e;
 127         }
 128         return ret;
 129 }