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_attach( 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                 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
  88         return filter;
  89 }
  90
  91 static mlt_filter create_filter( mlt_field field, char *id, int track )
  92 {
  93         char *arg = strchr( id, ':' );
  94         if ( arg != NULL )
  95                 *arg ++ = '\0';
  96         mlt_filter filter = mlt_factory_filter( id, arg );
  97         if ( filter != NULL )
  98         {
  99                 mlt_field_plant_filter( field, filter, track );
 100                 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
 101         }
 102         return filter;
 103 }
 104
 105 static mlt_transition create_transition( mlt_field field, char *id, int track )
 106 {
 107         char *arg = strchr( id, ':' );
 108         if ( arg != NULL )
 109                 *arg ++ = '\0';
 110         mlt_transition transition = mlt_factory_transition( id, arg );
 111         if ( transition != NULL )
 112         {
 113                 mlt_field_plant_transition( field, transition, track, track + 1 );
 114                 track_service( field, transition, ( mlt_destructor )mlt_transition_close );
 115         }
 116         return transition;
 117 }
 118
 119 mlt_producer producer_inigo_init( char **argv )
 120 {
 121         int i;
 122         int track = 0;
 123         mlt_producer producer = NULL;
 124         mlt_tractor mix = NULL;
 125         mlt_playlist playlist = mlt_playlist_init( );
 126         mlt_properties group = mlt_properties_new( );
 127         mlt_properties properties = group;
 128         mlt_tractor tractor = mlt_tractor_new( );
 129         mlt_field field = mlt_tractor_field( tractor );
 130         mlt_properties field_properties = mlt_field_properties( field );
 131         mlt_multitrack multitrack = mlt_tractor_multitrack( tractor );
 132
 133         // We need to track the number of registered filters
 134         mlt_properties_set_int( field_properties, "registered", 0 );
 135
 136         // Parse the arguments
 137         for ( i = 0; argv[ i ] != NULL; i ++ )
 138         {
 139                 if ( !strcmp( argv[ i ], "-group" ) )
 140                 {
 141                         if ( mlt_properties_count( group ) != 0 )
 142                         {
 143                                 mlt_properties_close( group );
 144                                 group = mlt_properties_new( );
 145                         }
 146                         if ( group != NULL )
 147                                 properties = group;
 148                 }
 149                 else if ( !strcmp( argv[ i ], "-attach" ) )
 150                 {
 151                         mlt_filter filter = create_attach( field, argv[ ++ i ], track );
 152                         if ( filter != NULL )
 153                         {
 154                                 if ( properties != NULL )
 155                                         mlt_service_attach( ( mlt_service )properties, filter );
 156                                 properties = mlt_filter_properties( filter );
 157                                 mlt_properties_inherit( properties, group );
 158                         }
 159                 }
 160                 else if ( !strcmp( argv[ i ], "-mix" ) )
 161                 {
 162                         int length = atoi( argv[ ++ i ] );
 163                         if ( producer != NULL )
 164                                 mlt_playlist_append( playlist, producer );
 165                         producer = NULL;
 166                         if ( mlt_playlist_count( playlist ) >= 2 )
 167                         {
 168                                 if ( mlt_playlist_mix( playlist, mlt_playlist_count( playlist ) - 2, length, NULL ) == 0 )
 169                                 {
 170                                         mlt_playlist_clip_info info;
 171                                         mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
 172                                         if ( mlt_properties_get_int( ( mlt_properties )info.producer, "mlt_mix" ) == 0 )
 173                                                 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 2 );
 174                                         mix = ( mlt_tractor )info.producer;
 175                                 }
 176                                 else
 177                                 {
 178                                         fprintf( stderr, "Mix failed?\n" );
 179                                 }
 180                         }
 181                         else
 182                         {
 183                                 fprintf( stderr, "Invalid position for a mix...\n" );
 184                         }
 185                 }
 186                 else if ( !strcmp( argv[ i ], "-filter" ) )
 187                 {
 188                         mlt_filter filter = create_filter( field, argv[ ++ i ], track );
 189                         if ( filter != NULL )
 190                         {
 191                                 properties = mlt_filter_properties( filter );
 192                                 mlt_properties_inherit( properties, group );
 193                         }
 194                 }
 195                 else if ( !strcmp( argv[ i ], "-transition" ) )
 196                 {
 197                         mlt_transition transition = create_transition( field, argv[ ++ i ], track - 1 );
 198                         if ( transition != NULL )
 199                         {
 200                                 properties = mlt_transition_properties( transition );
 201                                 mlt_properties_inherit( properties, group );
 202                         }
 203                 }
 204                 else if ( !strcmp( argv[ i ], "-mixer" ) )
 205                 {
 206                         if ( mix != NULL )
 207                         {
 208                                 char *id = strdup( argv[ ++ i ] );
 209                                 char *arg = strchr( id, ':' );
 210                                 mlt_field field = mlt_tractor_field( mix );
 211                                 mlt_transition transition = NULL;
 212                                 if ( arg != NULL )
 213                                         *arg ++ = '\0';
 214                                 transition = mlt_factory_transition( id, arg );
 215                                 if ( transition != NULL )
 216                                 {
 217                                         properties = mlt_transition_properties( transition );
 218                                         mlt_properties_inherit( properties, group );
 219                                         mlt_field_plant_transition( field, transition, 0, 1 );
 220                                         mlt_properties_set_position( properties, "in", 0 );
 221                                         mlt_properties_set_position( properties, "out", mlt_producer_get_out( ( mlt_producer )mix ) );
 222                                         mlt_transition_close( transition );
 223                                 }
 224                                 free( id );
 225                         }
 226                         else
 227                         {
 228                                 fprintf( stderr, "Invalid mixer...\n" );
 229                         }
 230                 }
 231                 else if ( !strcmp( argv[ i ], "-blank" ) )
 232                 {
 233                         if ( producer != NULL )
 234                                 mlt_playlist_append( playlist, producer );
 235                         producer = NULL;
 236                         mlt_playlist_blank( playlist, atof( argv[ ++ i ] ) );
 237                 }
 238                 else if ( !strcmp( argv[ i ], "-track" ) ||
 239                                   !strcmp( argv[ i ], "-hide-track" ) ||
 240                                   !strcmp( argv[ i ], "-hide-video" ) ||
 241                                   !strcmp( argv[ i ], "-hide-audio" ) )
 242                 {
 243                         if ( producer != NULL )
 244                                 mlt_playlist_append( playlist, producer );
 245                         producer = NULL;
 246                         mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track ++ );
 247                         track_service( field, playlist, ( mlt_destructor )mlt_playlist_close );
 248                         playlist = mlt_playlist_init( );
 249                         if ( playlist != NULL )
 250                         {
 251                                 properties = mlt_playlist_properties( playlist );
 252                                 if ( !strcmp( argv[ i ], "-hide-track" ) )
 253                                         mlt_properties_set_int( properties, "hide", 3 );
 254                                 else if ( !strcmp( argv[ i ], "-hide-video" ) )
 255                                         mlt_properties_set_int( properties, "hide", 1 );
 256                                 else if ( !strcmp( argv[ i ], "-hide-audio" ) )
 257                                         mlt_properties_set_int( properties, "hide", 2 );
 258                         }
 259                 }
 260                 else if ( strchr( argv[ i ], '=' ) )
 261                 {
 262                         mlt_properties_parse( properties, argv[ i ] );
 263                 }
 264                 else if ( argv[ i ][ 0 ] != '-' )
 265                 {
 266                         if ( producer != NULL )
 267                                 mlt_playlist_append( playlist, producer );
 268                         producer = create_producer( field, argv[ i ] );
 269                         if ( producer != NULL )
 270                         {
 271                                 properties = mlt_producer_properties( producer );
 272                                 mlt_properties_inherit( properties, group );
 273                         }
 274                 }
 275                 else
 276                 {
 277                         if ( !strcmp( argv[ i ], "-serialise" ) )
 278                                 i += 2;
 279                         else if ( !strcmp( argv[ i ], "-consumer" ) )
 280                                 i += 2;
 281
 282                         while ( argv[ i ] != NULL && strchr( argv[ i ], '=' ) )
 283                                 i ++;
 284
 285                         i --;
 286                 }
 287         }
 288
 289         // Connect last producer to playlist
 290         if ( producer != NULL )
 291                 mlt_playlist_append( playlist, producer );
 292
 293         // Track the last playlist too
 294         track_service( field, playlist, ( mlt_destructor )mlt_playlist_close );
 295
 296         // We must have a playlist to connect
 297         if ( mlt_playlist_count( playlist ) > 0 )
 298                 mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track );
 299
 300         mlt_producer prod = mlt_tractor_producer( tractor );
 301         mlt_properties props = mlt_tractor_properties( tractor );
 302         mlt_properties_set_data( props, "group", group, 0, ( mlt_destructor )mlt_properties_close, NULL );
 303         mlt_properties_set_position( props, "length", mlt_producer_get_out( mlt_multitrack_producer( multitrack ) ) + 1 );
 304         mlt_producer_set_in_and_out( prod, 0, mlt_producer_get_out( mlt_multitrack_producer( multitrack ) ) );
 305         mlt_properties_set_double( props, "fps", mlt_producer_get_fps( mlt_multitrack_producer( multitrack ) ) );
 306
 307         return prod;
 308 }