git.sesse.net Git - mlt/blob - src/melt/melt.c

   1 /*
   2  * melt.c -- MLT command line utility
   3  * Copyright (C) 2002-2011 Ushodaya Enterprises Limited
   4  * Authors: Charles Yates <charles.yates@pandora.be>
   5  *          Dan Dennedy <dan@dennedy.org>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License as published by
   9  * the Free Software Foundation; either version 2 of the License, or
  10  * (at your option) any later version.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software Foundation,
  19  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21
  22 #ifndef _GNU_SOURCE
  23 #define _GNU_SOURCE
  24 #endif
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #include <string.h>
  28 #include <sched.h>
  29 #include <libgen.h>
  30 #include <limits.h>
  31
  32 #include <framework/mlt.h>
  33
  34 #if defined(__DARWIN__) || defined(WIN32)
  35 #include <SDL.h>
  36 #endif
  37
  38 #include "io.h"
  39
  40 static void transport_action( mlt_producer producer, char *value )
  41 {
  42         mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
  43         mlt_multitrack multitrack = mlt_properties_get_data( properties, "multitrack", NULL );
  44         mlt_consumer consumer = mlt_properties_get_data( properties, "transport_consumer", NULL );
  45
  46         mlt_properties_set_int( properties, "stats_off", 1 );
  47
  48         if ( strlen( value ) == 1 )
  49         {
  50                 switch( value[ 0 ] )
  51                 {
  52                         case 'q':
  53                         case 'Q':
  54                                 mlt_properties_set_int( properties, "done", 1 );
  55                                 break;
  56                         case '0':
  57                                 mlt_producer_set_speed( producer, 1 );
  58                                 mlt_producer_seek( producer, 0 );
  59                                 break;
  60                         case '1':
  61                                 mlt_producer_set_speed( producer, -10 );
  62                                 break;
  63                         case '2':
  64                                 mlt_producer_set_speed( producer, -5 );
  65                                 break;
  66                         case '3':
  67                                 mlt_producer_set_speed( producer, -2 );
  68                                 break;
  69                         case '4':
  70                                 mlt_producer_set_speed( producer, -1 );
  71                                 break;
  72                         case '5':
  73                                 mlt_producer_set_speed( producer, 0 );
  74                                 break;
  75                         case '6':
  76                         case ' ':
  77                                 mlt_producer_set_speed( producer, 1 );
  78                                 break;
  79                         case '7':
  80                                 mlt_producer_set_speed( producer, 2 );
  81                                 break;
  82                         case '8':
  83                                 mlt_producer_set_speed( producer, 5 );
  84                                 break;
  85                         case '9':
  86                                 mlt_producer_set_speed( producer, 10 );
  87                                 break;
  88                         case 'd':
  89                                 if ( multitrack != NULL )
  90                                 {
  91                                         int i = 0;
  92                                         mlt_position last = -1;
  93                                         fprintf( stderr, "\n" );
  94                                         for ( i = 0; 1; i ++ )
  95                                         {
  96                                                 mlt_position time = mlt_multitrack_clip( multitrack, mlt_whence_relative_start, i );
  97                                                 if ( time == last )
  98                                                         break;
  99                                                 last = time;
 100                                                 fprintf( stderr, "%d: %d\n", i, (int)time );
 101                                         }
 102                                 }
 103                                 break;
 104
 105                         case 'g':
 106                                 if ( multitrack != NULL )
 107                                 {
 108                                         mlt_position time = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, 0 );
 109                                         mlt_producer_seek( producer, time );
 110                                 }
 111                                 break;
 112                         case 'H':
 113                                 if ( producer != NULL )
 114                                 {
 115                                         mlt_position position = mlt_producer_position( producer );
 116                                         mlt_producer_seek( producer, position - ( mlt_producer_get_fps( producer ) * 60 ) );
 117                                 }
 118                                 break;
 119                         case 'h':
 120                                 if ( producer != NULL )
 121                                 {
 122                                         mlt_position position = mlt_producer_position( producer );
 123                                         mlt_producer_set_speed( producer, 0 );
 124                                         mlt_producer_seek( producer, position - 1 );
 125                                 }
 126                                 break;
 127                         case 'j':
 128                                 if ( multitrack != NULL )
 129                                 {
 130                                         mlt_position time = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, 1 );
 131                                         mlt_producer_seek( producer, time );
 132                                 }
 133                                 break;
 134                         case 'k':
 135                                 if ( multitrack != NULL )
 136                                 {
 137                                         mlt_position time = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, -1 );
 138                                         mlt_producer_seek( producer, time );
 139                                 }
 140                                 break;
 141                         case 'l':
 142                                 if ( producer != NULL )
 143                                 {
 144                                         mlt_position position = mlt_producer_position( producer );
 145                                         if ( mlt_producer_get_speed( producer ) != 0 )
 146                                                 mlt_producer_set_speed( producer, 0 );
 147                                         else
 148                                                 mlt_producer_seek( producer, position + 1 );
 149                                 }
 150                                 break;
 151                         case 'L':
 152                                 if ( producer != NULL )
 153                                 {
 154                                         mlt_position position = mlt_producer_position( producer );
 155                                         mlt_producer_seek( producer, position + ( mlt_producer_get_fps( producer ) * 60 ) );
 156                                 }
 157                                 break;
 158                 }
 159
 160                 mlt_properties_set_int( MLT_CONSUMER_PROPERTIES( consumer ), "refresh", 1 );
 161         }
 162
 163         mlt_properties_set_int( properties, "stats_off", 0 );
 164 }
 165
 166 static mlt_consumer create_consumer( mlt_profile profile, char *id )
 167 {
 168         char *myid = id ? strdup( id ) : NULL;
 169         char *arg = myid ? strchr( myid, ':' ) : NULL;
 170         if ( arg != NULL )
 171                 *arg ++ = '\0';
 172         mlt_consumer consumer = mlt_factory_consumer( profile, myid, arg );
 173         if ( consumer != NULL )
 174         {
 175                 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 176                 mlt_properties_set_data( properties, "transport_callback", transport_action, 0, NULL, NULL );
 177         }
 178         if ( myid )
 179                 free( myid );
 180         return consumer;
 181 }
 182
 183 static void load_consumer( mlt_consumer *consumer, mlt_profile profile, int argc, char **argv )
 184 {
 185         int i;
 186         for ( i = 1; i < argc; i ++ )
 187         {
 188                 if ( !strcmp( argv[ i ], "-consumer" ) )
 189                 {
 190                         if ( *consumer )
 191                                 mlt_consumer_close( *consumer );
 192                         *consumer = create_consumer( profile, argv[ ++ i ] );
 193                         if ( *consumer )
 194                         {
 195                                 mlt_properties properties = MLT_CONSUMER_PROPERTIES( *consumer );
 196                                 while ( argv[ i + 1 ] != NULL && strstr( argv[ i + 1 ], "=" ) )
 197                                         mlt_properties_parse( properties, argv[ ++ i ] );
 198                         }
 199                 }
 200         }
 201 }
 202
 203 #if defined(__DARWIN__) || defined(WIN32)
 204
 205 static void event_handling( mlt_producer producer, mlt_consumer consumer )
 206 {
 207         SDL_Event event;
 208
 209         while ( SDL_PollEvent( &event ) )
 210         {
 211                 switch( event.type )
 212                 {
 213                         case SDL_QUIT:
 214                                 mlt_properties_set_int( MLT_PRODUCER_PROPERTIES( consumer ), "done", 1 );
 215                                 break;
 216
 217                         case SDL_KEYDOWN:
 218                                 if ( event.key.keysym.unicode < 0x80 && event.key.keysym.unicode > 0 )
 219                                 {
 220                                         char keyboard[ 2 ] = { event.key.keysym.unicode, 0 };
 221                                         transport_action( producer, keyboard );
 222                                 }
 223                                 break;
 224                 }
 225         }
 226 }
 227
 228 #endif
 229
 230 static void transport( mlt_producer producer, mlt_consumer consumer )
 231 {
 232         mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
 233         int silent = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer ), "silent" );
 234         int progress = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer ), "progress" );
 235         struct timespec tm = { 0, 40000 };
 236         int total_length = mlt_producer_get_length( producer );
 237         int last_position = 0;
 238
 239         if ( mlt_properties_get_int( properties, "done" ) == 0 && !mlt_consumer_is_stopped( consumer ) )
 240         {
 241                 if ( !silent && !progress )
 242                 {
 243                         term_init( );
 244
 245                         fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
 246                         fprintf( stderr, "|1=-10| |2= -5| |3= -2| |4= -1| |5=  0| |6=  1| |7=  2| |8=  5| |9= 10|\n" );
 247                         fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
 248
 249                         fprintf( stderr, "+---------------------------------------------------------------------+\n" );
 250                         fprintf( stderr, "|               H = back 1 minute,  L = forward 1 minute              |\n" );
 251                         fprintf( stderr, "|                 h = previous frame,  l = next frame                 |\n" );
 252                         fprintf( stderr, "|           g = start of clip, j = next clip, k = previous clip       |\n" );
 253                         fprintf( stderr, "|                0 = restart, q = quit, space = play                  |\n" );
 254                         fprintf( stderr, "+---------------------------------------------------------------------+\n" );
 255                 }
 256
 257                 while( mlt_properties_get_int( properties, "done" ) == 0 && !mlt_consumer_is_stopped( consumer ) )
 258                 {
 259                         int value = ( silent || progress )? -1 : term_read( );
 260
 261                         if ( value != -1 )
 262                         {
 263                                 char string[ 2 ] = { value, 0 };
 264                                 transport_action( producer, string );
 265                         }
 266
 267 #if defined(__DARWIN__) || defined(WIN32)
 268                         event_handling( producer, consumer );
 269 #endif
 270
 271                         if ( !silent && mlt_properties_get_int( properties, "stats_off" ) == 0 )
 272                         {
 273                                 if ( progress )
 274                                 {
 275                                         int current_position = mlt_producer_position( producer );
 276                                         if ( current_position > last_position )
 277                                         {
 278                                                 fprintf( stderr, "Current Frame: %10d, percentage: %10d\r",
 279                                                         current_position, 100 * current_position / total_length );
 280                                                 last_position = current_position;
 281                                         }
 282                                 }
 283                                 else
 284                                 {
 285                                         fprintf( stderr, "Current Position: %10d\r", (int)mlt_consumer_position( consumer ) );
 286                                 }
 287                         }
 288
 289                         if ( silent || progress )
 290                                 nanosleep( &tm, NULL );
 291                 }
 292
 293                 if ( !silent )
 294                         fprintf( stderr, "\n" );
 295         }
 296 }
 297
 298 static void show_usage( char *program_name )
 299 {
 300         fprintf( stderr,
 301 "Usage: %s [options] [producer [name=value]* ]+\n"
 302 "Options:\n"
 303 "  -attach filter[:arg] [name=value]*       Attach a filter to the output\n"
 304 "  -attach-cut filter[:arg] [name=value]*   Attach a filter to a cut\n"
 305 "  -attach-track filter[:arg] [name=value]* Attach a filter to a track\n"
 306 "  -attach-clip filter[:arg] [name=value]*  Attach a filter to a producer\n"
 307 "  -audio-track | -hide-video               Add an audio-only track\n"
 308 "  -blank frames                            Add blank silence to a track\n"
 309 "  -consumer id[:arg] [name=value]*         Set the consumer (sink)\n"
 310 "  -debug                                   Set the logging level to debug\n"
 311 "  -filter filter[:arg] [name=value]*       Add a filter to the current track\n"
 312 "  -group [name=value]*                     Apply properties repeatedly\n"
 313 "  -help                                    Show this message\n"
 314 "  -join clips                              Join multiple clips into one cut\n"
 315 "  -mix length                              Add a mix between the last two cuts\n"
 316 "  -mixer transition                        Add a transition to the mix\n"
 317 "  -null-track | -hide-track                Add a hidden track\n"
 318 "  -profile name                            Set the processing settings\n"
 319 "  -progress                                Display progress along with position\n"
 320 "  -remove                                  Remove the most recent cut\n"
 321 "  -repeat times                            Repeat the last cut\n"
 322 "  -query                                   List all of the registered services\n"
 323 "  -query \"consumers\" | \"consumer\"=id       List consumers or show info about one\n"
 324 "  -query \"filters\" | \"filter\"=id           List filters or show info about one\n"
 325 "  -query \"producers\" | \"producer\"=id       List producers or show info about one\n"
 326 "  -query \"transitions\" | \"transition\"=id   List transitions, show info about one\n"
 327 "  -query \"profiles\" | \"profile\"=id         List profiles, show info about one\n"
 328 "  -query \"formats\"                         List audio/video formats\n"
 329 "  -query \"audio_codecs\"                    List audio codecs\n"
 330 "  -query \"video_codecs\"                    List video codecs\n"
 331 "  -serialise [filename]                    Write the commands to a text file\n"
 332 "  -silent                                  Do not display position/transport\n"
 333 "  -split relative-frame                    Split the last cut into two cuts\n"
 334 "  -swap                                    Rearrange the last two cuts\n"
 335 "  -track                                   Add a track\n"
 336 "  -transition id[:arg] [name=value]*       Add a transition\n"
 337 "  -verbose                                 Set the logging level to verbose\n"
 338 "  -version                                 Show the version and copyright\n"
 339 "  -video-track | -hide-audio               Add a video-only track\n"
 340 "For more help: <http://www.mltframework.org/>\n",
 341         basename( program_name ) );
 342 }
 343
 344 static void guess_profile( mlt_producer melt, mlt_profile profile )
 345 {
 346         mlt_frame fr = NULL;
 347         uint8_t *buffer;
 348         mlt_image_format fmt = mlt_image_yuv422;
 349         mlt_properties p;
 350         int w = profile->width;
 351         int h = profile->height;
 352
 353         if ( ! mlt_service_get_frame( MLT_PRODUCER_SERVICE(melt), &fr, 0 ) && fr )
 354         {
 355                 mlt_properties_set_double( MLT_FRAME_PROPERTIES( fr ), "consumer_aspect_ratio", mlt_profile_sar( profile ) );
 356                 if ( ! mlt_frame_get_image( fr, &buffer, &fmt, &w, &h, 0 ) )
 357                 {
 358                         // Some source properties are not exposed until after the first get_image call.
 359                         mlt_frame_close( fr );
 360                         mlt_service_get_frame( MLT_PRODUCER_SERVICE(melt), &fr, 0 );
 361                         p = MLT_FRAME_PROPERTIES( fr );
 362 //                      mlt_properties_dump(p, stderr);
 363                         if ( mlt_properties_get_int( p, "meta.media.frame_rate_den" ) && mlt_properties_get_int( p, "meta.media.sample_aspect_den" ) )
 364                         {
 365                                 profile->width = mlt_properties_get_int( p, "meta.media.width" );
 366                                 profile->height = mlt_properties_get_int( p, "meta.media.height" );
 367                                 profile->progressive = mlt_properties_get_int( p, "meta.media.progressive" );
 368                                 profile->frame_rate_num = mlt_properties_get_int( p, "meta.media.frame_rate_num" );
 369                                 profile->frame_rate_den = mlt_properties_get_int( p, "meta.media.frame_rate_den" );
 370                                 // AVCHD is mis-reported as double frame rate.
 371                                 if ( profile->progressive == 0 && (
 372                                      profile->frame_rate_num / profile->frame_rate_den == 50 ||
 373                                      profile->frame_rate_num / profile->frame_rate_den == 59 ) )
 374                                         profile->frame_rate_num /= 2;
 375                                 profile->sample_aspect_num = mlt_properties_get_int( p, "meta.media.sample_aspect_num" );
 376                                 profile->sample_aspect_den = mlt_properties_get_int( p, "meta.media.sample_aspect_den" );
 377                                 profile->colorspace = mlt_properties_get_int( p, "meta.media.colorspace" );
 378                                 profile->display_aspect_num = (int) ( (double) profile->sample_aspect_num * profile->width / profile->sample_aspect_den + 0.5 );
 379                                 profile->display_aspect_den = profile->height;
 380                                 free( profile->description );
 381                                 profile->description = strdup( "automatic" );
 382                                 profile->is_explicit = 0;
 383                         }
 384                 }
 385         }
 386         mlt_frame_close( fr );
 387         mlt_producer_seek( melt, 0 );
 388 }
 389
 390 static void query_metadata( mlt_repository repo, mlt_service_type type, const char *typestr, char *id )
 391 {
 392         mlt_properties metadata = mlt_repository_metadata( repo, type, id );
 393         if ( metadata )
 394         {
 395                 char *s = mlt_properties_serialise_yaml( metadata );
 396                 fprintf( stderr, "%s", s );
 397                 free( s );
 398         }
 399         else
 400         {
 401                 fprintf( stderr, "# No metadata for %s \"%s\"\n", typestr, id );
 402         }
 403 }
 404
 405 static void query_services( mlt_repository repo, mlt_service_type type )
 406 {
 407         mlt_properties services = NULL;
 408         const char *typestr = NULL;
 409         switch ( type )
 410         {
 411                 case consumer_type:
 412                         services = mlt_repository_consumers( repo );
 413                         typestr = "consumers";
 414                         break;
 415                 case filter_type:
 416                         services = mlt_repository_filters( repo );
 417                         typestr = "filters";
 418                         break;
 419                 case producer_type:
 420                         services = mlt_repository_producers( repo );
 421                         typestr = "producers";
 422                         break;
 423                 case transition_type:
 424                         services = mlt_repository_transitions( repo );
 425                         typestr = "transitions";
 426                         break;
 427                 default:
 428                         return;
 429         }
 430         fprintf( stderr, "---\n%s:\n", typestr );
 431         if ( services )
 432         {
 433                 int j;
 434                 for ( j = 0; j < mlt_properties_count( services ); j++ )
 435                         fprintf( stderr, "  - %s\n", mlt_properties_get_name( services, j ) );
 436         }
 437         fprintf( stderr, "...\n" );
 438 }
 439
 440 static void query_profiles()
 441 {
 442         mlt_properties profiles = mlt_profile_list();
 443         fprintf( stderr, "---\nprofiles:\n" );
 444         if ( profiles )
 445         {
 446                 int j;
 447                 for ( j = 0; j < mlt_properties_count( profiles ); j++ )
 448                         fprintf( stderr, "  - %s\n", mlt_properties_get_name( profiles, j ) );
 449         }
 450         fprintf( stderr, "...\n" );
 451         mlt_properties_close( profiles );
 452 }
 453
 454 static void query_profile( const char *id )
 455 {
 456         mlt_properties profiles = mlt_profile_list();
 457         mlt_properties profile = mlt_properties_get_data( profiles, id, NULL );
 458         if ( profile )
 459         {
 460                 char *s = mlt_properties_serialise_yaml( profile );
 461                 fprintf( stderr, "%s", s );
 462                 free( s );
 463         }
 464         else
 465         {
 466                 fprintf( stderr, "# No metadata for profile \"%s\"\n", id );
 467         }
 468         mlt_properties_close( profiles );
 469 }
 470
 471 static void query_formats( )
 472 {
 473         mlt_consumer consumer = mlt_factory_consumer( NULL, "avformat", NULL );
 474         if ( consumer )
 475         {
 476                 mlt_properties_set( MLT_CONSUMER_PROPERTIES(consumer), "f", "list" );
 477                 mlt_consumer_start( consumer );
 478                 mlt_consumer_close( consumer );
 479         }
 480         else
 481         {
 482                 fprintf( stderr, "# No formats - failed to load avformat consumer\n" );
 483         }
 484 }
 485
 486 static void query_acodecs( )
 487 {
 488         mlt_consumer consumer = mlt_factory_consumer( NULL, "avformat", NULL );
 489         if ( consumer )
 490         {
 491                 mlt_properties_set( MLT_CONSUMER_PROPERTIES(consumer), "acodec", "list" );
 492                 mlt_consumer_start( consumer );
 493                 mlt_consumer_close( consumer );
 494         }
 495         else
 496         {
 497                 fprintf( stderr, "# No audio codecs - failed to load avformat consumer\n" );
 498         }
 499 }
 500
 501 static void query_vcodecs( )
 502 {
 503         mlt_consumer consumer = mlt_factory_consumer( NULL, "avformat", NULL );
 504         if ( consumer )
 505         {
 506                 mlt_properties_set( MLT_CONSUMER_PROPERTIES(consumer), "vcodec", "list" );
 507                 mlt_consumer_start( consumer );
 508                 mlt_consumer_close( consumer );
 509         }
 510         else
 511         {
 512                 fprintf( stderr, "# No video codecs - failed to load avformat consumer\n" );
 513         }
 514 }
 515
 516 static void on_fatal_error( mlt_properties owner, mlt_consumer consumer )
 517 {
 518         mlt_consumer_stop( consumer );
 519         exit( EXIT_FAILURE );
 520 }
 521
 522 int main( int argc, char **argv )
 523 {
 524         int i;
 525         mlt_consumer consumer = NULL;
 526         mlt_producer melt = NULL;
 527         FILE *store = NULL;
 528         char *name = NULL;
 529         mlt_profile profile = NULL;
 530         int is_progress = 0;
 531         int is_silent = 0;
 532         mlt_profile backup_profile;
 533
 534         // Construct the factory
 535         mlt_repository repo = mlt_factory_init( NULL );
 536
 537 #ifdef WIN32
 538         is_silent = 1;
 539 #endif
 540
 541         for ( i = 1; i < argc; i ++ )
 542         {
 543                 // Check for serialisation switch
 544                 if ( !strcmp( argv[ i ], "-serialise" ) )
 545                 {
 546                         name = argv[ ++ i ];
 547                         if ( name != NULL && strstr( name, ".melt" ) )
 548                                 store = fopen( name, "w" );
 549                         else
 550                         {
 551                                 if ( name == NULL || name[0] == '-' )
 552                                         store = stdout;
 553                                 name = NULL;
 554                         }
 555                 }
 556                 // Look for the profile option
 557                 else if ( !strcmp( argv[ i ], "-profile" ) )
 558                 {
 559                         const char *pname = argv[ ++ i ];
 560                         if ( pname && pname[0] != '-' )
 561                                 profile = mlt_profile_init( pname );
 562                 }
 563                 else if ( !strcmp( argv[ i ], "-progress" ) )
 564                 {
 565                         is_progress = 1;
 566                 }
 567                 // Look for the query option
 568                 else if ( !strcmp( argv[ i ], "-query" ) )
 569                 {
 570                         const char *pname = argv[ ++ i ];
 571                         if ( pname && pname[0] != '-' )
 572                         {
 573                                 if ( !strcmp( pname, "consumers" ) || !strcmp( pname, "consumer" ) )
 574                                         query_services( repo, consumer_type );
 575                                 else if ( !strcmp( pname, "filters" ) || !strcmp( pname, "filter" ) )
 576                                         query_services( repo, filter_type );
 577                                 else if ( !strcmp( pname, "producers" ) || !strcmp( pname, "producer" ) )
 578                                         query_services( repo, producer_type );
 579                                 else if ( !strcmp( pname, "transitions" ) || !strcmp( pname, "transition" ) )
 580                                         query_services( repo, transition_type );
 581                                 else if ( !strcmp( pname, "profiles" ) || !strcmp( pname, "profile" ) )
 582                                         query_profiles();
 583                                 else if ( !strncmp( pname, "format", 6 ) )
 584                                         query_formats();
 585                                 else if ( !strncmp( pname, "acodec", 6 ) || !strcmp( pname, "audio_codecs" ) )
 586                                         query_acodecs();
 587                                 else if ( !strncmp( pname, "vcodec", 6 ) || !strcmp( pname, "video_codecs" ) )
 588                                         query_vcodecs();
 589
 590                                 else if ( !strncmp( pname, "consumer=", 9 ) )
 591                                         query_metadata( repo, consumer_type, "consumer", strchr( pname, '=' ) + 1 );
 592                                 else if ( !strncmp( pname, "filter=", 7 ) )
 593                                         query_metadata( repo, filter_type, "filter", strchr( pname, '=' ) + 1 );
 594                                 else if ( !strncmp( pname, "producer=", 9 ) )
 595                                         query_metadata( repo, producer_type, "producer", strchr( pname, '=' ) + 1 );
 596                                 else if ( !strncmp( pname, "transition=", 11 ) )
 597                                         query_metadata( repo, transition_type, "transition", strchr( pname, '=' ) + 1 );
 598                                 else if ( !strncmp( pname, "profile=", 8 ) )
 599                                         query_profile( strchr( pname, '=' ) + 1 );
 600                                 else
 601                                         goto query_all;
 602                         }
 603                         else
 604                         {
 605 query_all:
 606                                 query_services( repo, consumer_type );
 607                                 query_services( repo, filter_type );
 608                                 query_services( repo, producer_type );
 609                                 query_services( repo, transition_type );
 610                                 fprintf( stderr, "# You can query the metadata for a specific service using:\n"
 611                                         "# -query <type>=<identifer>\n"
 612                                         "# where <type> is one of: consumer, filter, producer, or transition.\n" );
 613                         }
 614                         goto exit_factory;
 615                 }
 616                 else if ( !strcmp( argv[ i ], "-silent" ) )
 617                 {
 618                         is_silent = 1;
 619                 }
 620                 else if ( !strcmp( argv[ i ], "-verbose" ) )
 621                 {
 622                         mlt_log_set_level( MLT_LOG_VERBOSE );
 623                 }
 624                 else if ( !strcmp( argv[ i ], "-version" ) || !strcmp( argv[ i ], "--version" ) )
 625                 {
 626                         fprintf( stderr, "MLT %s " VERSION "\n"
 627                                 "Copyright (C) 2002-2011 Ushodaya Enterprises Limited\n"
 628                                 "<http://www.mltframework.org/>\n"
 629                                 "This is free software; see the source for copying conditions.  There is NO\n"
 630                                 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n",
 631                                 basename( argv[0] ) );
 632                         goto exit_factory;
 633                 }
 634                 else if ( !strcmp( argv[ i ], "-debug" ) )
 635                 {
 636                         mlt_log_set_level( MLT_LOG_DEBUG );
 637                 }
 638         }
 639
 640         // Create profile if not set explicitly
 641         if ( getenv( "MLT_PROFILE" ) )
 642                 profile = mlt_profile_init( NULL );
 643         if ( profile == NULL )
 644                 profile = mlt_profile_init( NULL );
 645         else
 646                 profile->is_explicit = 1;
 647
 648         // Look for the consumer option to load profile settings from consumer properties
 649         backup_profile = mlt_profile_clone( profile );
 650         load_consumer( &consumer, profile, argc, argv );
 651
 652         // If the consumer changed the profile, then it is explicit.
 653         if ( backup_profile && !profile->is_explicit && (
 654              profile->width != backup_profile->width ||
 655              profile->height != backup_profile->height ||
 656              profile->sample_aspect_num != backup_profile->sample_aspect_num ||
 657              profile->sample_aspect_den != backup_profile->sample_aspect_den ||
 658              profile->frame_rate_den != backup_profile->frame_rate_den ||
 659              profile->frame_rate_num != backup_profile->frame_rate_num ||
 660              profile->colorspace != backup_profile->colorspace ) )
 661                 profile->is_explicit = 1;
 662         mlt_profile_close( backup_profile );
 663
 664         // Get melt producer
 665         if ( argc > 1 )
 666                 melt = mlt_factory_producer( profile, "melt", &argv[ 1 ] );
 667
 668         if ( melt )
 669         {
 670                 // Generate an automatic profile if needed.
 671                 if ( ! profile->is_explicit )
 672                 {
 673                         guess_profile( melt, profile );
 674                         mlt_producer_close( melt );
 675                         melt = mlt_factory_producer( profile, "melt", &argv[ 1 ] );
 676                 }
 677
 678                 // Reload the consumer with the fully qualified profile.
 679                 // The producer or guess_profile could have changed the profile.
 680                 load_consumer( &consumer, profile, argc, argv );
 681
 682                 // If we have no consumer, default to sdl
 683                 if ( store == NULL && consumer == NULL )
 684                         consumer = create_consumer( profile, NULL );
 685         }
 686
 687         // Set transport properties on consumer and produder
 688         if ( consumer != NULL && melt != NULL )
 689         {
 690                 mlt_properties_set_data( MLT_CONSUMER_PROPERTIES( consumer ), "transport_producer", melt, 0, NULL, NULL );
 691                 mlt_properties_set_data( MLT_PRODUCER_PROPERTIES( melt ), "transport_consumer", consumer, 0, NULL, NULL );
 692                 if ( is_progress )
 693                         mlt_properties_set_int(  MLT_CONSUMER_PROPERTIES( consumer ), "progress", is_progress );
 694                 if ( is_silent )
 695                         mlt_properties_set_int(  MLT_CONSUMER_PROPERTIES( consumer ), "silent", is_silent );
 696         }
 697
 698         if ( argc > 1 && melt != NULL && mlt_producer_get_length( melt ) > 0 )
 699         {
 700                 // Parse the arguments
 701                 for ( i = 1; i < argc; i ++ )
 702                 {
 703                         if ( !strcmp( argv[ i ], "-serialise" ) )
 704                         {
 705                                 if ( store != stdout )
 706                                         i ++;
 707                         }
 708                         else
 709                         {
 710                                 if ( store != NULL )
 711                                         fprintf( store, "%s\n", argv[ i ] );
 712
 713                                 i ++;
 714
 715                                 while ( argv[ i ] != NULL && argv[ i ][ 0 ] != '-' )
 716                                 {
 717                                         if ( store != NULL )
 718                                                 fprintf( store, "%s\n", argv[ i ] );
 719                                         i += 1;
 720                                 }
 721
 722                                 i --;
 723                         }
 724                 }
 725
 726                 if ( consumer != NULL && store == NULL )
 727                 {
 728                         // Get melt's properties
 729                         mlt_properties melt_props = MLT_PRODUCER_PROPERTIES( melt );
 730
 731                         // Get the last group
 732                         mlt_properties group = mlt_properties_get_data( melt_props, "group", 0 );
 733
 734                         // Apply group settings
 735                         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 736                         mlt_properties_inherit( properties, group );
 737
 738                         // Connect consumer to melt
 739                         mlt_consumer_connect( consumer, MLT_PRODUCER_SERVICE( melt ) );
 740
 741                         // Start the consumer
 742                         mlt_events_listen( properties, consumer, "consumer-fatal-error", ( mlt_listener )on_fatal_error );
 743                         if ( mlt_consumer_start( consumer ) == 0 )
 744                         {
 745                                 // Transport functionality
 746                                 transport( melt, consumer );
 747
 748                                 // Stop the consumer
 749                                 mlt_consumer_stop( consumer );
 750                         }
 751                 }
 752                 else if ( store != NULL && store != stdout && name != NULL )
 753                 {
 754                         fprintf( stderr, "Project saved as %s.\n", name );
 755                         fclose( store );
 756                 }
 757         }
 758         else
 759         {
 760                 show_usage( argv[0] );
 761         }
 762
 763         // Close the producer
 764         if ( melt != NULL )
 765                 mlt_producer_close( melt );
 766
 767         // Close the consumer
 768         if ( consumer != NULL )
 769                 mlt_consumer_close( consumer );
 770
 771         // Close the factory
 772         mlt_profile_close( profile );
 773
 774 exit_factory:
 775
 776         mlt_factory_close( );
 777
 778         return 0;
 779 }