research.m1stereo.tv/gitweb/ - melted/blob - src/modules/inigo/producer_inigo.c

   1 /*
   2  * producer_inigo.c -- simple inigo test case
   3  * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
   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 General Public License as published by
   8  * 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 "producer_inigo.h"
  22
  23 #include <stdio.h>
  24 #include <stdlib.h>
  25 #include <string.h>
  26
  27 #include <framework/mlt.h>
  28
  29 mlt_producer producer_inigo_file_init( char *file )
  30 {
  31         FILE *input = fopen( file, "r" );
  32         char **args = calloc( sizeof( char * ), 1000 );
  33         int count = 0;
  34         char temp[ 2048 ];
  35
  36         if ( input != NULL )
  37         {
  38                 while( fgets( temp, 2048, input ) )
  39                 {
  40                         temp[ strlen( temp ) - 1 ] = '\0';
  41                         if ( strcmp( temp, "" ) )
  42                                 args[ count ++ ] = strdup( temp );
  43                 }
  44         }
  45
  46         mlt_producer result = producer_inigo_init( args );
  47
  48         if ( result != NULL )
  49         {
  50                 mlt_properties properties = mlt_producer_properties( result );
  51                 mlt_properties_set( properties, "resource", file );
  52         }
  53
  54         while( count -- )
  55                 free( args[ count ] );
  56         free( args );
  57
  58         return result;
  59 }
  60
  61 static void track_service( mlt_field field, void *service, mlt_destructor destructor )
  62 {
  63         mlt_properties properties = mlt_field_properties( field );
  64         int registered = mlt_properties_get_int( properties, "registered" );
  65         char *key = mlt_properties_get( properties, "registered" );
  66         mlt_properties_set_data( properties, key, service, 0, destructor, NULL );
  67         mlt_properties_set_int( properties, "registered", ++ registered );
  68 }
  69
  70 static mlt_producer create_producer( mlt_field field, char *file )
  71 {
  72         mlt_producer result = mlt_factory_producer( "fezzik", file );
  73
  74         if ( result != NULL )
  75                 track_service( field, result, ( mlt_destructor )mlt_producer_close );
  76
  77         return result;
  78 }
  79
  80 static mlt_filter create_filter( mlt_field field, char *id, int track )
  81 {
  82         char *arg = strchr( id, ':' );
  83         if ( arg != NULL )
  84                 *arg ++ = '\0';
  85         mlt_filter filter = mlt_factory_filter( id, arg );
  86         if ( filter != NULL )
  87         {
  88                 mlt_field_plant_filter( field, filter, track );
  89                 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
  90         }
  91         return filter;
  92 }
  93
  94 static mlt_transition create_transition( mlt_field field, char *id, int track )
  95 {
  96         char *arg = strchr( id, ':' );
  97         if ( arg != NULL )
  98                 *arg ++ = '\0';
  99         mlt_transition transition = mlt_factory_transition( id, arg );
 100         if ( transition != NULL )
 101         {
 102                 mlt_field_plant_transition( field, transition, track, track + 1 );
 103                 track_service( field, transition, ( mlt_destructor )mlt_transition_close );
 104         }
 105         return transition;
 106 }
 107
 108 mlt_producer producer_inigo_init( char **argv )
 109 {
 110         int i;
 111         int track = 0;
 112         mlt_producer producer = NULL;
 113         mlt_playlist playlist = mlt_playlist_init( );
 114         mlt_properties group = mlt_properties_new( );
 115         mlt_properties properties = group;
 116         mlt_field field = mlt_field_init( );
 117         mlt_properties field_properties = mlt_field_properties( field );
 118         mlt_multitrack multitrack = mlt_field_multitrack( field );
 119
 120         // We need to track the number of registered filters
 121         mlt_properties_set_int( field_properties, "registered", 0 );
 122
 123         // Parse the arguments
 124         for ( i = 0; argv[ i ] != NULL; i ++ )
 125         {
 126                 if ( !strcmp( argv[ i ], "-group" ) )
 127                 {
 128                         if ( mlt_properties_count( group ) != 0 )
 129                         {
 130                                 mlt_properties_close( group );
 131                                 group = mlt_properties_new( );
 132                         }
 133                         if ( group != NULL )
 134                                 properties = group;
 135                 }
 136                 else if ( !strcmp( argv[ i ], "-filter" ) )
 137                 {
 138                         mlt_filter filter = create_filter( field, argv[ ++ i ], track );
 139                         if ( filter != NULL )
 140                         {
 141                                 properties = mlt_filter_properties( filter );
 142                                 mlt_properties_inherit( properties, group );
 143                         }
 144                 }
 145                 else if ( !strcmp( argv[ i ], "-transition" ) )
 146                 {
 147                         mlt_transition transition = create_transition( field, argv[ ++ i ], track );
 148                         if ( transition != NULL )
 149                         {
 150                                 properties = mlt_transition_properties( transition );
 151                                 mlt_properties_inherit( properties, group );
 152                         }
 153                 }
 154                 else if ( !strcmp( argv[ i ], "-blank" ) )
 155                 {
 156                         if ( producer != NULL )
 157                                 mlt_playlist_append( playlist, producer );
 158                         producer = NULL;
 159                         mlt_playlist_blank( playlist, atof( argv[ ++ i ] ) );
 160                 }
 161                 else if ( !strcmp( argv[ i ], "-track" ) )
 162                 {
 163                         if ( producer != NULL )
 164                                 mlt_playlist_append( playlist, producer );
 165                         producer = NULL;
 166                         mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track ++ );
 167                         track_service( field, playlist, ( mlt_destructor )mlt_playlist_close );
 168                         playlist = mlt_playlist_init( );
 169                 }
 170                 else if ( strstr( argv[ i ], "=" ) )
 171                 {
 172                         mlt_properties_parse( properties, argv[ i ] );
 173                 }
 174                 else if ( argv[ i ][ 0 ] != '-' )
 175                 {
 176                         if ( producer != NULL )
 177                                 mlt_playlist_append( playlist, producer );
 178                         producer = create_producer( field, argv[ i ] );
 179                         if ( producer != NULL )
 180                         {
 181                                 properties = mlt_producer_properties( producer );
 182                                 mlt_properties_inherit( properties, group );
 183                         }
 184                 }
 185                 else
 186                 {
 187                         if ( !strcmp( argv[ i ], "-serialise" ) )
 188                                 i += 2;
 189                         else if ( !strcmp( argv[ i ], "-consumer" ) )
 190                                 i += 2;
 191
 192                         while ( argv[ i ] != NULL && strchr( argv[ i ], '=' ) )
 193                                 i ++;
 194
 195                         i --;
 196                 }
 197         }
 198
 199         // Connect last producer to playlist
 200         if ( producer != NULL )
 201                 mlt_playlist_append( playlist, producer );
 202
 203         // Track the last playlist too
 204         track_service( field, playlist, ( mlt_destructor )mlt_playlist_close );
 205
 206         // We must have a playlist to connect
 207         if ( mlt_playlist_count( playlist ) > 0 )
 208                 mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track );
 209
 210         mlt_tractor tractor = mlt_field_tractor( field );
 211         mlt_producer prod = mlt_tractor_producer( tractor );
 212         mlt_properties props = mlt_tractor_properties( tractor );
 213         mlt_properties_set_data( props, "multitrack", multitrack, 0, ( mlt_destructor )mlt_multitrack_close, NULL );
 214         mlt_properties_set_data( props, "field", field, 0, ( mlt_destructor )mlt_field_close, NULL );
 215         mlt_properties_set_data( props, "group", group, 0, ( mlt_destructor )mlt_properties_close, NULL );
 216         mlt_properties_set_position( props, "length", mlt_producer_get_out( mlt_multitrack_producer( multitrack ) ) + 1 );
 217         mlt_producer_set_in_and_out( prod, 0, mlt_producer_get_out( mlt_multitrack_producer( multitrack ) ) );
 218         mlt_properties_set_double( props, "fps", mlt_producer_get_fps( mlt_multitrack_producer( multitrack ) ) );
 219
 220         return mlt_tractor_producer( tractor );
 221 }
 222