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 static mlt_producer parse_inigo( 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 mlt_producer create_producer( char *file )
  62 {
  63         mlt_producer result = NULL;
  64
  65         // 1st Line preferences
  66         if ( strstr( file, ".inigo" ) )
  67                 result = parse_inigo( file );
  68         else if ( strstr( file, ".mpg" ) )
  69                 result = mlt_factory_producer( "mcmpeg", file );
  70         else if ( strstr( file, ".mpeg" ) )
  71                 result = mlt_factory_producer( "mcmpeg", file );
  72         else if ( strstr( file, ".dv" ) )
  73                 result = mlt_factory_producer( "mcdv", file );
  74         else if ( strstr( file, ".dif" ) )
  75                 result = mlt_factory_producer( "mcdv", file );
  76         else if ( strstr( file, ".jpg" ) )
  77                 result = mlt_factory_producer( "pixbuf", file );
  78         else if ( strstr( file, ".JPG" ) )
  79                 result = mlt_factory_producer( "pixbuf", file );
  80         else if ( strstr( file, ".jpeg" ) )
  81                 result = mlt_factory_producer( "pixbuf", file );
  82         else if ( strstr( file, ".png" ) )
  83                 result = mlt_factory_producer( "pixbuf", file );
  84         else if ( strstr( file, ".txt" ) )
  85                 result = mlt_factory_producer( "pango", file );
  86         else if ( strstr( file, ".westley" ) )
  87                 result = mlt_factory_producer( "westley", file );
  88
  89         // 2nd Line fallbacks
  90         if ( result == NULL && strstr( file, ".dv" ) )
  91                 result = mlt_factory_producer( "libdv", file );
  92         else if ( result == NULL && strstr( file, ".dif" ) )
  93                 result = mlt_factory_producer( "libdv", file );
  94
  95         // 3rd line fallbacks
  96         if ( result == NULL )
  97                 result = mlt_factory_producer( "avformat", file );
  98
  99         return result;
 100 }
 101
 102 static void track_service( mlt_field field, void *service, mlt_destructor destructor )
 103 {
 104         mlt_properties properties = mlt_field_properties( field );
 105         int registered = mlt_properties_get_int( properties, "registered" );
 106         char *key = mlt_properties_get( properties, "registered" );
 107         mlt_properties_set_data( properties, key, service, 0, destructor, NULL );
 108         mlt_properties_set_int( properties, "registered", ++ registered );
 109 }
 110
 111 static mlt_filter create_filter( mlt_field field, char *id, int track )
 112 {
 113         char *arg = strchr( id, ':' );
 114         if ( arg != NULL )
 115                 *arg ++ = '\0';
 116         mlt_filter filter = mlt_factory_filter( id, arg );
 117         if ( filter != NULL )
 118         {
 119                 mlt_field_plant_filter( field, filter, track );
 120                 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
 121         }
 122         return filter;
 123 }
 124
 125 static mlt_transition create_transition( mlt_field field, char *id, int track )
 126 {
 127         char *arg = strchr( id, ':' );
 128         if ( arg != NULL )
 129                 *arg ++ = '\0';
 130         mlt_transition transition = mlt_factory_transition( id, arg );
 131         if ( transition != NULL )
 132         {
 133                 mlt_field_plant_transition( field, transition, track, track + 1 );
 134                 track_service( field, transition, ( mlt_destructor )mlt_transition_close );
 135         }
 136         return transition;
 137 }
 138
 139 mlt_producer producer_inigo_init( char **argv )
 140 {
 141         int i;
 142         int track = 0;
 143         mlt_producer producer = NULL;
 144         mlt_playlist playlist = mlt_playlist_init( );
 145         mlt_properties group = mlt_properties_new( );
 146         mlt_properties properties = group;
 147         mlt_field field = mlt_field_init( );
 148         mlt_properties field_properties = mlt_field_properties( field );
 149         mlt_multitrack multitrack = mlt_field_multitrack( field );
 150
 151         // We need to track the number of registered filters
 152         mlt_properties_set_int( field_properties, "registered", 0 );
 153
 154         // Parse the arguments
 155         for ( i = 0; argv[ i ] != NULL; i ++ )
 156         {
 157                 if ( !strcmp( argv[ i ], "-group" ) )
 158                 {
 159                         if ( mlt_properties_count( group ) != 0 )
 160                         {
 161                                 mlt_properties_close( group );
 162                                 group = mlt_properties_new( );
 163                         }
 164                         if ( group != NULL )
 165                                 properties = group;
 166                 }
 167                 else if ( !strcmp( argv[ i ], "-filter" ) )
 168                 {
 169                         mlt_filter filter = create_filter( field, argv[ ++ i ], track );
 170                         if ( filter != NULL )
 171                         {
 172                                 properties = mlt_filter_properties( filter );
 173                                 mlt_properties_inherit( properties, group );
 174                         }
 175                 }
 176                 else if ( !strcmp( argv[ i ], "-transition" ) )
 177                 {
 178                         mlt_transition transition = create_transition( field, argv[ ++ i ], track );
 179                         if ( transition != NULL )
 180                         {
 181                                 properties = mlt_transition_properties( transition );
 182                                 mlt_properties_inherit( properties, group );
 183                         }
 184                 }
 185                 else if ( !strcmp( argv[ i ], "-blank" ) )
 186                 {
 187                         if ( producer != NULL )
 188                                 mlt_playlist_append( playlist, producer );
 189                         producer = NULL;
 190                         mlt_playlist_blank( playlist, atof( argv[ ++ i ] ) );
 191                 }
 192                 else if ( !strcmp( argv[ i ], "-track" ) )
 193                 {
 194                         if ( producer != NULL )
 195                                 mlt_playlist_append( playlist, producer );
 196                         producer = NULL;
 197                         mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track ++ );
 198                         playlist = mlt_playlist_init( );
 199                 }
 200                 else if ( strstr( argv[ i ], "=" ) )
 201                 {
 202                         mlt_properties_parse( properties, argv[ i ] );
 203                 }
 204                 else if ( argv[ i ][ 0 ] != '-' )
 205                 {
 206                         if ( producer != NULL )
 207                                 mlt_playlist_append( playlist, producer );
 208                         producer = create_producer( argv[ i ] );
 209                         if ( producer != NULL )
 210                         {
 211                                 properties = mlt_producer_properties( producer );
 212                                 mlt_properties_inherit( properties, group );
 213                         }
 214                 }
 215                 else
 216                 {
 217                         if ( !strcmp( argv[ i ], "-serialise" ) )
 218                                 i += 2;
 219                         else if ( !strcmp( argv[ i ], "-consumer" ) )
 220                                 i += 2;
 221
 222                         while ( argv[ i ] != NULL && strchr( argv[ i ], '=' ) )
 223                                 i ++;
 224
 225                         i --;
 226                 }
 227         }
 228
 229         // Connect producer to playlist
 230         if ( producer != NULL )
 231                 mlt_playlist_append( playlist, producer );
 232
 233         // We must have a producer at this point
 234         if ( mlt_playlist_count( playlist ) > 0 )
 235         {
 236                 // Connect multitrack to producer
 237                 mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track );
 238         }
 239
 240         mlt_tractor tractor = mlt_field_tractor( field );
 241         mlt_producer prod = mlt_tractor_producer( tractor );
 242         mlt_properties props = mlt_tractor_properties( tractor );
 243         mlt_properties_set_data( props, "multitrack", multitrack, 0, NULL, NULL );
 244         mlt_properties_set_data( props, "field", field, 0, NULL, NULL );
 245         mlt_properties_set_data( props, "group", group, 0, NULL, NULL );
 246         mlt_properties_set_position( props, "length", mlt_producer_get_out( mlt_multitrack_producer( multitrack ) ) + 1 );
 247         mlt_producer_set_in_and_out( prod, 0, mlt_producer_get_out( mlt_multitrack_producer( multitrack ) ) );
 248         mlt_properties_set_double( props, "fps", mlt_producer_get_fps( mlt_multitrack_producer( multitrack ) ) );
 249
 250         return mlt_tractor_producer( tractor );
 251 }
 252