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 = NULL;
  73
  74         // 1st Line preferences
  75         if ( strstr( file, ".inigo" ) )
  76                 result = mlt_factory_producer( "inigo_file", file );
  77         else if ( strstr( file, ".mpg" ) )
  78                 result = mlt_factory_producer( "mcmpeg", file );
  79         else if ( strstr( file, ".mpeg" ) )
  80                 result = mlt_factory_producer( "mcmpeg", file );
  81         else if ( strstr( file, ".dv" ) )
  82                 result = mlt_factory_producer( "mcdv", file );
  83         else if ( strstr( file, ".dif" ) )
  84                 result = mlt_factory_producer( "mcdv", file );
  85         else if ( strstr( file, ".jpg" ) )
  86                 result = mlt_factory_producer( "pixbuf", file );
  87         else if ( strstr( file, ".JPG" ) )
  88                 result = mlt_factory_producer( "pixbuf", file );
  89         else if ( strstr( file, ".jpeg" ) )
  90                 result = mlt_factory_producer( "pixbuf", file );
  91         else if ( strstr( file, ".png" ) )
  92                 result = mlt_factory_producer( "pixbuf", file );
  93         else if ( strstr( file, ".txt" ) )
  94                 result = mlt_factory_producer( "pango", file );
  95         else if ( strstr( file, ".westley" ) )
  96                 result = mlt_factory_producer( "westley", file );
  97         else if ( strstr( file, ".ogg" ) )
  98                 result = mlt_factory_producer( "vorbis", file );
  99
 100         // 2nd Line fallbacks
 101         if ( result == NULL && strstr( file, ".dv" ) )
 102                 result = mlt_factory_producer( "libdv", file );
 103         else if ( result == NULL && strstr( file, ".dif" ) )
 104                 result = mlt_factory_producer( "libdv", file );
 105
 106         // 3rd line fallbacks
 107         if ( result == NULL )
 108                 result = mlt_factory_producer( "avformat", file );
 109
 110         // 4th line fallbacks
 111         if ( result == NULL )
 112                 result = mlt_factory_producer( "ffmpeg", file );
 113
 114         if ( result != NULL )
 115                 track_service( field, result, ( mlt_destructor )mlt_producer_close );
 116
 117         return result;
 118 }
 119
 120 static mlt_filter create_filter( mlt_field field, char *id, int track )
 121 {
 122         char *arg = strchr( id, ':' );
 123         if ( arg != NULL )
 124                 *arg ++ = '\0';
 125         mlt_filter filter = mlt_factory_filter( id, arg );
 126         if ( filter != NULL )
 127         {
 128                 mlt_field_plant_filter( field, filter, track );
 129                 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
 130         }
 131         return filter;
 132 }
 133
 134 static mlt_transition create_transition( mlt_field field, char *id, int track )
 135 {
 136         char *arg = strchr( id, ':' );
 137         if ( arg != NULL )
 138                 *arg ++ = '\0';
 139         mlt_transition transition = mlt_factory_transition( id, arg );
 140         if ( transition != NULL )
 141         {
 142                 mlt_field_plant_transition( field, transition, track, track + 1 );
 143                 track_service( field, transition, ( mlt_destructor )mlt_transition_close );
 144         }
 145         return transition;
 146 }
 147
 148 mlt_producer producer_inigo_init( char **argv )
 149 {
 150         int i;
 151         int track = 0;
 152         mlt_producer producer = NULL;
 153         mlt_playlist playlist = mlt_playlist_init( );
 154         mlt_properties group = mlt_properties_new( );
 155         mlt_properties properties = group;
 156         mlt_field field = mlt_field_init( );
 157         mlt_properties field_properties = mlt_field_properties( field );
 158         mlt_multitrack multitrack = mlt_field_multitrack( field );
 159
 160         // We need to track the number of registered filters
 161         mlt_properties_set_int( field_properties, "registered", 0 );
 162
 163         // Parse the arguments
 164         for ( i = 0; argv[ i ] != NULL; i ++ )
 165         {
 166                 if ( !strcmp( argv[ i ], "-group" ) )
 167                 {
 168                         if ( mlt_properties_count( group ) != 0 )
 169                         {
 170                                 mlt_properties_close( group );
 171                                 group = mlt_properties_new( );
 172                         }
 173                         if ( group != NULL )
 174                                 properties = group;
 175                 }
 176                 else if ( !strcmp( argv[ i ], "-filter" ) )
 177                 {
 178                         mlt_filter filter = create_filter( field, argv[ ++ i ], track );
 179                         if ( filter != NULL )
 180                         {
 181                                 properties = mlt_filter_properties( filter );
 182                                 mlt_properties_inherit( properties, group );
 183                         }
 184                 }
 185                 else if ( !strcmp( argv[ i ], "-transition" ) )
 186                 {
 187                         mlt_transition transition = create_transition( field, argv[ ++ i ], track );
 188                         if ( transition != NULL )
 189                         {
 190                                 properties = mlt_transition_properties( transition );
 191                                 mlt_properties_inherit( properties, group );
 192                         }
 193                 }
 194                 else if ( !strcmp( argv[ i ], "-blank" ) )
 195                 {
 196                         if ( producer != NULL )
 197                                 mlt_playlist_append( playlist, producer );
 198                         producer = NULL;
 199                         mlt_playlist_blank( playlist, atof( argv[ ++ i ] ) );
 200                 }
 201                 else if ( !strcmp( argv[ i ], "-track" ) )
 202                 {
 203                         if ( producer != NULL )
 204                                 mlt_playlist_append( playlist, producer );
 205                         producer = NULL;
 206                         mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track ++ );
 207                         track_service( field, playlist, ( mlt_destructor )mlt_playlist_close );
 208                         playlist = mlt_playlist_init( );
 209                 }
 210                 else if ( strstr( argv[ i ], "=" ) )
 211                 {
 212                         mlt_properties_parse( properties, argv[ i ] );
 213                 }
 214                 else if ( argv[ i ][ 0 ] != '-' )
 215                 {
 216                         if ( producer != NULL )
 217                                 mlt_playlist_append( playlist, producer );
 218                         producer = create_producer( field, argv[ i ] );
 219                         if ( producer != NULL )
 220                         {
 221                                 properties = mlt_producer_properties( producer );
 222                                 mlt_properties_inherit( properties, group );
 223                         }
 224                 }
 225                 else
 226                 {
 227                         if ( !strcmp( argv[ i ], "-serialise" ) )
 228                                 i += 2;
 229                         else if ( !strcmp( argv[ i ], "-consumer" ) )
 230                                 i += 2;
 231
 232                         while ( argv[ i ] != NULL && strchr( argv[ i ], '=' ) )
 233                                 i ++;
 234
 235                         i --;
 236                 }
 237         }
 238
 239         // Connect last producer to playlist
 240         if ( producer != NULL )
 241                 mlt_playlist_append( playlist, producer );
 242
 243         // Track the last playlist too
 244         track_service( field, playlist, ( mlt_destructor )mlt_playlist_close );
 245
 246         // We must have a playlist to connect
 247         if ( mlt_playlist_count( playlist ) > 0 )
 248                 mlt_multitrack_connect( multitrack, mlt_playlist_producer( playlist ), track );
 249
 250         mlt_tractor tractor = mlt_field_tractor( field );
 251         mlt_producer prod = mlt_tractor_producer( tractor );
 252         mlt_properties props = mlt_tractor_properties( tractor );
 253         mlt_properties_set_data( props, "multitrack", multitrack, 0, ( mlt_destructor )mlt_multitrack_close, NULL );
 254         mlt_properties_set_data( props, "field", field, 0, ( mlt_destructor )mlt_field_close, NULL );
 255         mlt_properties_set_data( props, "group", group, 0, ( mlt_destructor )mlt_properties_close, NULL );
 256         mlt_properties_set_position( props, "length", mlt_producer_get_out( mlt_multitrack_producer( multitrack ) ) + 1 );
 257         mlt_producer_set_in_and_out( prod, 0, mlt_producer_get_out( mlt_multitrack_producer( multitrack ) ) );
 258         mlt_properties_set_double( props, "fps", mlt_producer_get_fps( mlt_multitrack_producer( multitrack ) ) );
 259
 260         return mlt_tractor_producer( tractor );
 261 }
 262