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 #include "MltProfile.h"
  26 using namespace Mlt;
  27
  28 Consumer::Consumer( ) :
  29         instance( NULL )
  30 {
  31         instance = mlt_factory_consumer( NULL, NULL, NULL );
  32 }
  33
  34 Consumer::Consumer( Profile& profile ) :
  35         instance( NULL )
  36 {
  37         instance = mlt_factory_consumer( profile.get_profile(), NULL, NULL );
  38 }
  39
  40 Consumer::Consumer( Profile& profile, char *id, char *arg ) :
  41         instance( NULL )
  42 {
  43         if ( id == NULL || arg != NULL )
  44         {
  45                 instance = mlt_factory_consumer( profile.get_profile(), id, arg );
  46         }
  47         else
  48         {
  49                 if ( strchr( id, ':' ) )
  50                 {
  51                         char *temp = strdup( id );
  52                         char *arg = strchr( temp, ':' ) + 1;
  53                         *( arg - 1 ) = '\0';
  54                         instance = mlt_factory_consumer( profile.get_profile(), temp, arg );
  55                         free( temp );
  56                 }
  57                 else
  58                 {
  59                         instance = mlt_factory_consumer( profile.get_profile(), id, NULL );
  60                 }
  61         }
  62 }
  63
  64 Consumer::Consumer( Service &consumer ) :
  65         instance( NULL )
  66 {
  67         if ( consumer.type( ) == consumer_type )
  68         {
  69                 instance = ( mlt_consumer )consumer.get_service( );
  70                 inc_ref( );
  71         }
  72 }
  73
  74 Consumer::Consumer( Consumer &consumer ) :
  75         Mlt::Service( consumer ),
  76         instance( consumer.get_consumer( ) )
  77 {
  78         inc_ref( );
  79 }
  80
  81 Consumer::Consumer( mlt_consumer consumer ) :
  82         instance( consumer )
  83 {
  84         inc_ref( );
  85 }
  86
  87 Consumer::~Consumer( )
  88 {
  89         mlt_consumer_close( instance );
  90 }
  91
  92 mlt_consumer Consumer::get_consumer( )
  93 {
  94         return instance;
  95 }
  96
  97 mlt_service Consumer::get_service( )
  98 {
  99         return mlt_consumer_service( get_consumer( ) );
 100 }
 101
 102 int Consumer::connect( Service &service )
 103 {
 104         return connect_producer( service );
 105 }
 106
 107 int Consumer::start( )
 108 {
 109         return mlt_consumer_start( get_consumer( ) );
 110 }
 111
 112 void Consumer::purge( )
 113 {
 114         mlt_consumer_purge( get_consumer( ) );
 115 }
 116
 117 int Consumer::stop( )
 118 {
 119         return mlt_consumer_stop( get_consumer( ) );
 120 }
 121
 122 bool Consumer::is_stopped( )
 123 {
 124         return mlt_consumer_is_stopped( get_consumer( ) ) != 0;
 125 }
 126
 127 int Consumer::run( )
 128 {
 129         int ret = start( );
 130         if ( !is_stopped( ) )
 131         {
 132                 Event *e = setup_wait_for( "consumer-stopped" );
 133                 wait_for( e );
 134                 delete e;
 135         }
 136         return ret;
 137 }