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         else if ( strstr( file, ".ogg" ) )
  89                 result = mlt_factory_producer( "vorbis", file );
  90
  91         // 2nd Line fallbacks
  92         if ( result == NULL && strstr( file, ".dv" ) )
  93                 result = mlt_factory_producer( "libdv", file );
  94         else if ( result == NULL && strstr( file, ".dif" ) )
  95                 result = mlt_factory_producer( "libdv", file );
  96
  97         // 3rd line fallbacks
  98         if ( result == NULL )
  99                 result = mlt_factory_producer( "avformat", file );
 100
 101         // 4th line fallbacks
 102         if ( result == NULL )
 103                 result = mlt_factory_producer( "ffmpeg", file );
 104
 105         return result;
 106 }
 107
 108 static void track_service( mlt_field field, void *service, mlt_destructor destructor )
 109 {
 110         mlt_properties properties = mlt_field_properties( field );
 111         int registered = mlt_properties_get_int( properties, "registered" );
 112         char *key = mlt_properties_get( properties, "registered" );
 113         mlt_properties_set_data( properties, key, service, 0, destructor, NULL );
 114         mlt_properties_set_int( properties, "registered", ++ registered );
 115 }
 116
 117 static mlt_filter create_filter( mlt_field field, char *id, int track )
 118 {
 119         char *arg = strchr( id, ':' );
 120         if ( arg != NULL )
 121                 *arg ++ = '\0';
 122         mlt_filter filter = mlt_factory_filter( id, arg );
 123         if ( filter != NULL )
 124         {
 125                 mlt_field_plant_filter( field, filter, track );
 126                 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
 127         }
 128         return filter;
 129 }
 130
 131 static mlt_transition create_transition( mlt_field field, char *id, int track )
 132 {
 133         char *arg = strchr( id, ':' );
 134         if ( arg != NULL )
 135                 *arg ++ = '\0';
 136         mlt_transition transition = mlt_factory_transition( id, arg );
 137         if ( transition != NULL )
 138         {
 139                 mlt_field_plant_transition( field, transition, track, track + 1 );
 140                 track_service( field, transition, ( mlt_destructor )mlt_transition_close );
 141         }
 142         return transition;
 143 }
 144
 145 mlt_producer producer_inigo_init( char **argv )
 146 {
 147         int i;
 148         int track = 0;
 149         mlt_producer producer = NULL;
 150         mlt_playlist playlist = mlt_playlist_init( );
 151         mlt_properties group = mlt_properties_new( );
 152         mlt_properties properties = group;
 153         mlt_field field = mlt_field_init( );
 154         mlt_properties field_properties = mlt_field_properties( field );
 155         mlt_multitrack multitrack = mlt_field_multitrack( field );
 156
 157         // We need to track the number of registered filters
 158         mlt_properties_set_int( field_properties, "registered", 0 );
 159
 160         // Parse the arguments
 161         for ( i = 0; argv[ i ] != NULL; i ++ )
 162         {
 163                 if ( !strcmp( argv[ i ], "-group" ) )
 164                 {
 165                         if ( mlt_properties_count( group ) != 0 )
 166                         {
 167                                 mlt_properties_close( group );
 168                                 group = mlt_properties_new( );
 169                         }
 170                         if ( group != NULL )
 171                                 properties = group;
 172                 }
 173                 else if ( !strcmp( argv[ i ], "-filter" ) )
 174                 {
 175                         mlt_filter filter = create_filter( field, argv[ ++ i ], track );
 176                         if ( filter != NULL )
 177                         {
 178                                 properties = mlt_filter_properties( filter );
 179                                 mlt_properties_inherit( properties, group );
 180                         }
 181                 }
 182                 else if ( !strcmp( argv[ i ], "-transition" ) )
 183                 {
 184                         mlt_transition transition = create_transition( field, argv[ ++ i ], track );
 185                         if ( transition != NULL )
 186                         {
 187                                 properties = mlt_transition_properties( transition );
 188                                 mlt_properties_inherit( properties, group );
 189                         }
 190                 }
 191                 else if ( !strcmp( argv[ i ], "-blank" ) )
 192                 {
 193                         if ( producer != NULL )
 194                                 mlt_playlist_append( playlist, producer );
 195                         producer = NULL;
 196                         mlt_playlist_blank( playlist, atof( argv[ ++ i ] ) );
 197                 }
 198                 else if ( !strcmp( argv[ i ], "-track" ) )
 199                 {
 200                         if ( producer != NULL )
 201                                 mlt_playlist_append( playlist, producer );
 202                         producer = NULL;
 203                         mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track ++ );
 204                         playlist = mlt_playlist_init( );
 205                 }
 206                 else if ( strstr( argv[ i ], "=" ) )
 207                 {
 208                         mlt_properties_parse( properties, argv[ i ] );
 209                 }
 210                 else if ( argv[ i ][ 0 ] != '-' )
 211                 {
 212                         if ( producer != NULL )
 213                                 mlt_playlist_append( playlist, producer );
 214                         producer = create_producer( argv[ i ] );
 215                         if ( producer != NULL )
 216                         {
 217                                 properties = mlt_producer_properties( producer );
 218                                 mlt_properties_inherit( properties, group );
 219                         }
 220                 }
 221                 else
 222                 {
 223                         if ( !strcmp( argv[ i ], "-serialise" ) )
 224                                 i += 2;
 225                         else if ( !strcmp( argv[ i ], "-consumer" ) )
 226                                 i += 2;
 227
 228                         while ( argv[ i ] != NULL && strchr( argv[ i ], '=' ) )
 229                                 i ++;
 230
 231                         i --;
 232                 }
 233         }
 234
 235         // Connect producer to playlist
 236         if ( producer != NULL )
 237                 mlt_playlist_append( playlist, producer );
 238
 239         // We must have a producer at this point
 240         if ( mlt_playlist_count( playlist ) > 0 )
 241         {
 242                 // Connect multitrack to producer
 243                 mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track );
 244         }
 245
 246         mlt_tractor tractor = mlt_field_tractor( field );
 247         mlt_producer prod = mlt_tractor_producer( tractor );
 248         mlt_properties props = mlt_tractor_properties( tractor );
 249         mlt_properties_set_data( props, "multitrack", multitrack, 0, ( mlt_destructor )mlt_multitrack_close, NULL );
 250         mlt_properties_set_data( props, "field", field, 0, ( mlt_destructor )mlt_field_close, NULL );
 251         mlt_properties_set_data( props, "group", group, 0, ( mlt_destructor )mlt_properties_close, NULL );
 252         mlt_properties_set_position( props, "length", mlt_producer_get_out( mlt_multitrack_producer( multitrack ) ) + 1 );
 253         mlt_producer_set_in_and_out( prod, 0, mlt_producer_get_out( mlt_multitrack_producer( multitrack ) ) );
 254         mlt_properties_set_double( props, "fps", mlt_producer_get_fps( mlt_multitrack_producer( multitrack ) ) );
 255
 256         return mlt_tractor_producer( tractor );
 257 }
 258