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         if ( result != NULL )
  48         {
  49                 mlt_properties properties = mlt_producer_properties( result );
  50                 mlt_field field = mlt_properties_get_data( properties, "field", NULL );
  51                 mlt_properties_set( properties, "resource", file );
  52                 mlt_properties_set( mlt_field_properties( field ), "resource", file );
  53         }
  54
  55         while( count -- )
  56                 free( args[ count ] );
  57         free( args );
  58
  59         return result;
  60 }
  61
  62 static mlt_producer create_producer( char *file )
  63 {
  64         mlt_producer result = NULL;
  65
  66         // 1st Line preferences
  67         if ( strstr( file, ".inigo" ) )
  68                 result = parse_inigo( file );
  69         else if ( strstr( file, ".mpg" ) )
  70                 result = mlt_factory_producer( "mcmpeg", file );
  71         else if ( strstr( file, ".mpeg" ) )
  72                 result = mlt_factory_producer( "mcmpeg", file );
  73         else if ( strstr( file, ".dv" ) )
  74                 result = mlt_factory_producer( "mcdv", file );
  75         else if ( strstr( file, ".dif" ) )
  76                 result = mlt_factory_producer( "mcdv", file );
  77         else if ( strstr( file, ".jpg" ) )
  78                 result = mlt_factory_producer( "pixbuf", file );
  79         else if ( strstr( file, ".JPG" ) )
  80                 result = mlt_factory_producer( "pixbuf", file );
  81         else if ( strstr( file, ".jpeg" ) )
  82                 result = mlt_factory_producer( "pixbuf", file );
  83         else if ( strstr( file, ".png" ) )
  84                 result = mlt_factory_producer( "pixbuf", file );
  85         else if ( strstr( file, ".txt" ) )
  86                 result = mlt_factory_producer( "pango", file );
  87
  88         // 2nd Line fallbacks
  89         if ( result == NULL && strstr( file, ".dv" ) )
  90                 result = mlt_factory_producer( "libdv", file );
  91         else if ( result == NULL && strstr( file, ".dif" ) )
  92                 result = mlt_factory_producer( "libdv", file );
  93
  94         // 3rd line fallbacks
  95         if ( result == NULL )
  96                 result = mlt_factory_producer( "ffmpeg", file );
  97
  98         return result;
  99 }
 100
 101 static void track_service( mlt_field field, void *service, mlt_destructor destructor )
 102 {
 103         mlt_properties properties = mlt_field_properties( field );
 104         int registered = mlt_properties_get_int( properties, "registered" );
 105         char *key = mlt_properties_get( properties, "registered" );
 106         mlt_properties_set_data( properties, key, service, 0, destructor, NULL );
 107         mlt_properties_set_int( properties, "registered", ++ registered );
 108 }
 109
 110 static mlt_filter create_filter( mlt_field field, char *id, int track )
 111 {
 112         char *arg = strchr( id, ':' );
 113         if ( arg != NULL )
 114                 *arg ++ = '\0';
 115         mlt_filter filter = mlt_factory_filter( id, arg );
 116         if ( filter != NULL )
 117         {
 118                 mlt_field_plant_filter( field, filter, track );
 119                 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
 120         }
 121         return filter;
 122 }
 123
 124 static mlt_transition create_transition( mlt_field field, char *id, int track )
 125 {
 126         char *arg = strchr( id, ':' );
 127         if ( arg != NULL )
 128                 *arg ++ = '\0';
 129         mlt_transition transition = mlt_factory_transition( id, arg );
 130         if ( transition != NULL )
 131         {
 132                 mlt_field_plant_transition( field, transition, track, track + 1 );
 133                 track_service( field, transition, ( mlt_destructor )mlt_transition_close );
 134         }
 135         return transition;
 136 }
 137
 138 static void set_properties( mlt_properties properties, char *namevalue )
 139 {
 140         mlt_properties_parse( properties, namevalue );
 141 }
 142
 143 mlt_producer producer_inigo_init( char **argv )
 144 {
 145         int i;
 146         int track = 0;
 147         mlt_producer producer = NULL;
 148         mlt_playlist playlist = mlt_playlist_init( );
 149         mlt_properties group = mlt_properties_new( );
 150         mlt_properties properties = group;
 151         mlt_field field = mlt_field_init( );
 152         mlt_properties field_properties = mlt_field_properties( field );
 153         mlt_multitrack multitrack = mlt_field_multitrack( field );
 154
 155         // We need to track the number of registered filters
 156         mlt_properties_set_int( field_properties, "registered", 0 );
 157
 158         // Parse the arguments
 159         for ( i = 0; argv[ i ] != NULL; i ++ )
 160         {
 161                 if ( !strcmp( argv[ i ], "-group" ) )
 162                 {
 163                         if ( mlt_properties_count( group ) != 0 )
 164                         {
 165                                 mlt_properties_close( group );
 166                                 group = mlt_properties_new( );
 167                         }
 168                         if ( group != NULL )
 169                                 properties = group;
 170                 }
 171                 else if ( !strcmp( argv[ i ], "-filter" ) )
 172                 {
 173                         mlt_filter filter = create_filter( field, argv[ ++ i ], track );
 174                         if ( filter != NULL )
 175                         {
 176                                 properties = mlt_filter_properties( filter );
 177                                 mlt_properties_inherit( properties, group );
 178                         }
 179                 }
 180                 else if ( !strcmp( argv[ i ], "-transition" ) )
 181                 {
 182                         mlt_transition transition = create_transition( field, argv[ ++ i ], track );
 183                         if ( transition != NULL )
 184                         {
 185                                 properties = mlt_transition_properties( transition );
 186                                 mlt_properties_inherit( properties, group );
 187                         }
 188                 }
 189                 else if ( !strcmp( argv[ i ], "-blank" ) )
 190                 {
 191                         if ( producer != NULL )
 192                                 mlt_playlist_append( playlist, producer );
 193                         producer = NULL;
 194                         mlt_playlist_blank( playlist, atof( argv[ ++ i ] ) );
 195                 }
 196                 else if ( !strcmp( argv[ i ], "-track" ) )
 197                 {
 198                         if ( producer != NULL )
 199                                 mlt_playlist_append( playlist, producer );
 200                         producer = NULL;
 201                         mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track ++ );
 202                         playlist = mlt_playlist_init( );
 203                 }
 204                 else if ( strstr( argv[ i ], "=" ) )
 205                 {
 206                         set_properties( properties, argv[ i ] );
 207                 }
 208                 else if ( argv[ i ][ 0 ] != '-' )
 209                 {
 210                         if ( producer != NULL )
 211                                 mlt_playlist_append( playlist, producer );
 212                         producer = create_producer( argv[ i ] );
 213                         if ( producer != NULL )
 214                         {
 215                                 properties = mlt_producer_properties( producer );
 216                                 mlt_properties_inherit( properties, group );
 217                         }
 218                 }
 219                 else
 220                 {
 221                         if ( !strcmp( argv[ i ], "-serialise" ) )
 222                                 i += 2;
 223                         else if ( !strcmp( argv[ i ], "-consumer" ) )
 224                                 i += 2;
 225
 226                         while ( argv[ i ] != NULL && strchr( argv[ i ], '=' ) )
 227                                 i ++;
 228
 229                         i --;
 230                 }
 231         }
 232
 233         // Connect producer to playlist
 234         if ( producer != NULL )
 235                 mlt_playlist_append( playlist, producer );
 236
 237         // We must have a producer at this point
 238         if ( mlt_playlist_count( playlist ) > 0 )
 239         {
 240                 // Connect multitrack to producer
 241                 mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track );
 242         }
 243
 244         mlt_properties props = mlt_multitrack_properties( multitrack );
 245         mlt_properties_set_data( props, "field", field, 0, NULL, NULL );
 246         mlt_properties_set_data( props, "group", group, 0, NULL, NULL );
 247
 248         return mlt_multitrack_producer( multitrack );
 249 }
 250