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