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

   1 /*
   2  * melt.c -- MLT command line utility
   3  * Copyright (C) 2002-2012 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 #include <unistd.h>
  32
  33 #include <framework/mlt.h>
  34
  35 #if (defined(__DARWIN__) || defined(WIN32)) && !defined(MELT_NOSDL)
  36 #include <SDL.h>
  37 #endif
  38
  39 #include "io.h"
  40
  41 static void transport_action( mlt_producer producer, char *value )
  42 {
  43         mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
  44         mlt_multitrack multitrack = mlt_properties_get_data( properties, "multitrack", NULL );
  45         mlt_consumer consumer = mlt_properties_get_data( properties, "transport_consumer", NULL );
  46         mlt_properties jack = mlt_properties_get_data( MLT_CONSUMER_PROPERTIES( consumer ), "jack_filter", NULL );
  47         mlt_position position = producer? mlt_producer_position( producer ) : 0;
  48
  49         mlt_properties_set_int( properties, "stats_off", 1 );
  50
  51         if ( strlen( value ) == 1 )
  52         {
  53                 switch( value[ 0 ] )
  54                 {
  55                         case 'q':
  56                         case 'Q':
  57                                 mlt_properties_set_int( properties, "done", 1 );
  58                                 mlt_events_fire( jack, "jack-stop", NULL );
  59                                 break;
  60                         case '0':
  61                                 position = 0;
  62                                 mlt_producer_set_speed( producer, 1 );
  63                                 mlt_producer_seek( producer, position );
  64                                 mlt_consumer_purge( consumer );
  65                                 mlt_events_fire( jack, "jack-seek", &position, NULL );
  66                                 break;
  67                         case '1':
  68                                 mlt_producer_set_speed( producer, -10 );
  69                                 break;
  70                         case '2':
  71                                 mlt_producer_set_speed( producer, -5 );
  72                                 break;
  73                         case '3':
  74                                 mlt_producer_set_speed( producer, -2 );
  75                                 break;
  76                         case '4':
  77                                 mlt_producer_set_speed( producer, -1 );
  78                                 break;
  79                         case '5':
  80                                 mlt_producer_set_speed( producer, 0 );
  81                                 mlt_consumer_purge( consumer );
  82                                 mlt_events_fire( jack, "jack-stop", NULL );
  83                                 break;
  84                         case '6':
  85                         case ' ':
  86                                 if ( !jack || mlt_producer_get_speed( producer ) != 0 )
  87                                         mlt_producer_set_speed( producer, 1 );
  88                                 mlt_consumer_purge( consumer );
  89                                 mlt_events_fire( jack, "jack-start", NULL );
  90                                 break;
  91                         case '7':
  92                                 mlt_producer_set_speed( producer, 2 );
  93                                 break;
  94                         case '8':
  95                                 mlt_producer_set_speed( producer, 5 );
  96                                 break;
  97                         case '9':
  98                                 mlt_producer_set_speed( producer, 10 );
  99                                 break;
 100                         case 'd':
 101                                 if ( multitrack != NULL )
 102                                 {
 103                                         int i = 0;
 104                                         mlt_position last = -1;
 105                                         fprintf( stderr, "\n" );
 106                                         for ( i = 0; 1; i ++ )
 107                                         {
 108                                                 position = mlt_multitrack_clip( multitrack, mlt_whence_relative_start, i );
 109                                                 if ( position == last )
 110                                                         break;
 111                                                 last = position;
 112                                                 fprintf( stderr, "%d: %d\n", i, (int)position );
 113                                         }
 114                                 }
 115                                 break;
 116
 117                         case 'g':
 118                                 if ( multitrack != NULL )
 119                                 {
 120                                         position = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, 0 );
 121                                         mlt_producer_seek( producer, position );
 122                                         mlt_consumer_purge( consumer );
 123                                         mlt_events_fire( jack, "jack-seek", &position, NULL );
 124                                 }
 125                                 break;
 126                         case 'H':
 127                                 if ( producer != NULL )
 128                                 {
 129                                         position -= mlt_producer_get_fps( producer ) * 60;
 130                                         mlt_consumer_purge( consumer );
 131                                         mlt_producer_seek( producer, position );
 132                                         mlt_events_fire( jack, "jack-seek", &position, NULL );
 133                                 }
 134                                 break;
 135                         case 'h':
 136                                 if ( producer != NULL )
 137                                 {
 138                                         position--;
 139                                         mlt_producer_set_speed( producer, 0 );
 140                                         mlt_consumer_purge( consumer );
 141                                         mlt_producer_seek( producer, position );
 142                                         mlt_events_fire( jack, "jack-stop", NULL );
 143                                         mlt_events_fire( jack, "jack-seek", &position, NULL );
 144                                 }
 145                                 break;
 146                         case 'j':
 147                                 if ( multitrack != NULL )
 148                                 {
 149                                         position = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, 1 );
 150                                         mlt_consumer_purge( consumer );
 151                                         mlt_producer_seek( producer, position );
 152                                         mlt_events_fire( jack, "jack-seek", &position, NULL );
 153                                 }
 154                                 break;
 155                         case 'k':
 156                                 if ( multitrack != NULL )
 157                                 {
 158                                         position = mlt_multitrack_clip( multitrack, mlt_whence_relative_current, -1 );
 159                                         mlt_consumer_purge( consumer );
 160                                         mlt_producer_seek( producer, position );
 161                                         mlt_events_fire( jack, "jack-seek", &position, NULL );
 162                                 }
 163                                 break;
 164                         case 'l':
 165                                 if ( producer != NULL )
 166                                 {
 167                                         position++;
 168                                         mlt_consumer_purge( consumer );
 169                                         if ( mlt_producer_get_speed( producer ) != 0 )
 170                                         {
 171                                                 mlt_producer_set_speed( producer, 0 );
 172                                                 mlt_events_fire( jack, "jack-stop", NULL );
 173                                         }
 174                                         else
 175                                         {
 176                                                 mlt_producer_seek( producer, position );
 177                                                 mlt_events_fire( jack, "jack-seek", &position, NULL );
 178                                         }
 179                                 }
 180                                 break;
 181                         case 'L':
 182                                 if ( producer != NULL )
 183                                 {
 184                                         position += mlt_producer_get_fps( producer ) * 60;
 185                                         mlt_consumer_purge( consumer );
 186                                         mlt_producer_seek( producer, position );
 187                                         mlt_events_fire( jack, "jack-seek", &position, NULL );
 188                                 }
 189                                 break;
 190                 }
 191
 192                 mlt_properties_set_int( MLT_CONSUMER_PROPERTIES( consumer ), "refresh", 1 );
 193         }
 194
 195         mlt_properties_set_int( properties, "stats_off", 0 );
 196 }
 197
 198 static void on_jack_started( mlt_properties owner, mlt_consumer consumer, mlt_position *position )
 199 {
 200         mlt_producer producer = mlt_properties_get_data( MLT_CONSUMER_PROPERTIES(consumer), "transport_producer", NULL );
 201         if ( producer )
 202         {
 203                 if ( mlt_producer_get_speed( producer ) != 0 )
 204                 {
 205                         mlt_properties jack = mlt_properties_get_data( MLT_CONSUMER_PROPERTIES( consumer ), "jack_filter", NULL );
 206                         mlt_events_fire( jack, "jack-stop", NULL );
 207                 }
 208                 else
 209                 {
 210                         mlt_producer_set_speed( producer, 1 );
 211                         mlt_consumer_purge( consumer );
 212                         mlt_producer_seek( producer, *position );
 213                         mlt_properties_set_int( MLT_CONSUMER_PROPERTIES( consumer ), "refresh", 1 );
 214                 }
 215         }
 216 }
 217
 218 static void on_jack_stopped( mlt_properties owner, mlt_consumer consumer, mlt_position *position )
 219 {
 220         mlt_producer producer = mlt_properties_get_data( MLT_CONSUMER_PROPERTIES(consumer), "transport_producer", NULL );
 221         if ( producer )
 222         {
 223                 mlt_producer_set_speed( producer, 0 );
 224                 mlt_consumer_purge( consumer );
 225                 mlt_producer_seek( producer, *position );
 226                 mlt_properties_set_int( MLT_CONSUMER_PROPERTIES( consumer ), "refresh", 1 );
 227         }
 228 }
 229
 230 static void setup_jack_transport( mlt_consumer consumer, mlt_profile profile )
 231 {
 232         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 233         mlt_filter jack = mlt_factory_filter( profile, "jackrack", NULL );
 234         mlt_properties jack_properties = MLT_FILTER_PROPERTIES(jack);
 235
 236         mlt_service_attach( MLT_CONSUMER_SERVICE(consumer), jack );
 237         mlt_properties_set_int( properties, "audio_off", 1 );
 238         mlt_properties_set_data( properties, "jack_filter", jack, 0, (mlt_destructor) mlt_filter_close, NULL );
 239 //      mlt_properties_set( jack_properties, "out_1", "system:playback_1" );
 240 //      mlt_properties_set( jack_properties, "out_2", "system:playback_2" );
 241         mlt_events_listen( jack_properties, consumer, "jack-started", (mlt_listener) on_jack_started );
 242         mlt_events_listen( jack_properties, consumer, "jack-stopped", (mlt_listener) on_jack_stopped );
 243 }
 244
 245 static mlt_consumer create_consumer( mlt_profile profile, char *id )
 246 {
 247         char *myid = id ? strdup( id ) : NULL;
 248         char *arg = myid ? strchr( myid, ':' ) : NULL;
 249         if ( arg != NULL )
 250                 *arg ++ = '\0';
 251         mlt_consumer consumer = mlt_factory_consumer( profile, myid, arg );
 252         if ( consumer != NULL )
 253         {
 254                 mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 255                 mlt_properties_set_data( properties, "transport_callback", transport_action, 0, NULL, NULL );
 256         }
 257         if ( myid )
 258                 free( myid );
 259         return consumer;
 260 }
 261
 262 static void load_consumer( mlt_consumer *consumer, mlt_profile profile, int argc, char **argv )
 263 {
 264         int i;
 265         int multi = 0;
 266
 267         for ( i = 1; i < argc; i ++ )
 268                 multi += !strcmp( argv[ i ], "-consumer" );
 269
 270         if ( multi > 1 )
 271         {
 272                 // If there is more than one -consumer use the 'multi' consumer.
 273                 int k = 0;
 274                 char key[20];
 275
 276                 if ( *consumer )
 277                         mlt_consumer_close( *consumer );
 278                 *consumer = create_consumer( profile, "multi" );
 279                 mlt_properties properties = MLT_CONSUMER_PROPERTIES( *consumer );
 280                 for ( i = 1; i < argc; i ++ )
 281                 {
 282                         if ( !strcmp( argv[ i ], "-consumer" ) && argv[ i + 1 ])
 283                         {
 284                                 // Create a properties object for each sub-consumer
 285                                 mlt_properties new_props = mlt_properties_new();
 286                                 snprintf( key, sizeof(key), "%d", k++ );
 287                                 mlt_properties_set_data( properties, key, new_props, 0,
 288                                         (mlt_destructor) mlt_properties_close, NULL );
 289                                 if ( strchr( argv[i + 1], ':' ) )
 290                                 {
 291                                         char *temp = strdup( argv[++i] );
 292                                         char *service = temp;
 293                                         char *target = strchr( temp, ':' );
 294                                         *target++ = 0;
 295                                         mlt_properties_set( new_props, "mlt_service", service );
 296                                         mlt_properties_set( new_props, "target", target );
 297                                 }
 298                                 else
 299                                 {
 300                                         mlt_properties_set( new_props, "mlt_service", argv[ ++i ] );
 301                                 }
 302                                 while ( argv[ i + 1 ] && strchr( argv[ i + 1 ], '=' ) )
 303                                         mlt_properties_parse( new_props, argv[ ++ i ] );
 304                         }
 305                 }
 306         }
 307         else for ( i = 1; i < argc; i ++ )
 308         {
 309                 if ( !strcmp( argv[ i ], "-consumer" ) )
 310                 {
 311                         if ( *consumer )
 312                                 mlt_consumer_close( *consumer );
 313                         *consumer = create_consumer( profile, argv[ ++ i ] );
 314                         if ( *consumer )
 315                         {
 316                                 mlt_properties properties = MLT_CONSUMER_PROPERTIES( *consumer );
 317                                 while ( argv[ i + 1 ] != NULL && strchr( argv[ i + 1 ], '=' ) )
 318                                         mlt_properties_parse( properties, argv[ ++ i ] );
 319                         }
 320                 }
 321         }
 322 }
 323
 324 #if (defined(__DARWIN__) || defined(WIN32)) && !defined(MELT_NOSDL)
 325
 326 static void event_handling( mlt_producer producer, mlt_consumer consumer )
 327 {
 328         SDL_Event event;
 329
 330         while ( SDL_PollEvent( &event ) )
 331         {
 332                 switch( event.type )
 333                 {
 334                         case SDL_QUIT:
 335                                 mlt_properties_set_int( MLT_PRODUCER_PROPERTIES( consumer ), "done", 1 );
 336                                 break;
 337
 338                         case SDL_KEYDOWN:
 339                                 if ( event.key.keysym.unicode < 0x80 && event.key.keysym.unicode > 0 )
 340                                 {
 341                                         char keyboard[ 2 ] = { event.key.keysym.unicode, 0 };
 342                                         transport_action( producer, keyboard );
 343                                 }
 344                                 break;
 345                 }
 346         }
 347 }
 348
 349 #endif
 350
 351 static void transport( mlt_producer producer, mlt_consumer consumer )
 352 {
 353         mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
 354         int silent = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer ), "silent" );
 355         int progress = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer ), "progress" );
 356         struct timespec tm = { 0, 40000000 };
 357         int total_length = mlt_producer_get_length( producer );
 358         int last_position = 0;
 359
 360         if ( mlt_properties_get_int( properties, "done" ) == 0 && !mlt_consumer_is_stopped( consumer ) )
 361         {
 362                 if ( !silent && !progress )
 363                 {
 364                         term_init( );
 365
 366                         fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
 367                         fprintf( stderr, "|1=-10| |2= -5| |3= -2| |4= -1| |5=  0| |6=  1| |7=  2| |8=  5| |9= 10|\n" );
 368                         fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
 369
 370                         fprintf( stderr, "+---------------------------------------------------------------------+\n" );
 371                         fprintf( stderr, "|               H = back 1 minute,  L = forward 1 minute              |\n" );
 372                         fprintf( stderr, "|                 h = previous frame,  l = next frame                 |\n" );
 373                         fprintf( stderr, "|           g = start of clip, j = next clip, k = previous clip       |\n" );
 374                         fprintf( stderr, "|                0 = restart, q = quit, space = play                  |\n" );
 375                         fprintf( stderr, "+---------------------------------------------------------------------+\n" );
 376                 }
 377
 378                 while( mlt_properties_get_int( properties, "done" ) == 0 && !mlt_consumer_is_stopped( consumer ) )
 379                 {
 380                         int value = ( silent || progress )? -1 : term_read( );
 381
 382                         if ( value != -1 )
 383                         {
 384                                 char string[ 2 ] = { value, 0 };
 385                                 transport_action( producer, string );
 386                         }
 387
 388 #if (defined(__DARWIN__) || defined(WIN32)) && !defined(MELT_NOSDL)
 389                         event_handling( producer, consumer );
 390 #endif
 391
 392                         if ( !silent && mlt_properties_get_int( properties, "stats_off" ) == 0 )
 393                         {
 394                                 if ( progress )
 395                                 {
 396                                         int current_position = mlt_producer_position( producer );
 397                                         if ( current_position > last_position )
 398                                         {
 399                                                 fprintf( stderr, "Current Frame: %10d, percentage: %10d%c",
 400                                                         current_position, 100 * current_position / total_length,
 401                                                         progress == 2 ? '\n' : '\r' );
 402                                                 last_position = current_position;
 403                                         }
 404                                 }
 405                                 else
 406                                 {
 407                                         fprintf( stderr, "Current Position: %10d\r", (int)mlt_consumer_position( consumer ) );
 408                                 }
 409                                 fflush( stderr );
 410                         }
 411
 412                         if ( silent || progress )
 413                                 nanosleep( &tm, NULL );
 414                 }
 415
 416                 if ( !silent )
 417                         fprintf( stderr, "\n" );
 418         }
 419 }
 420
 421 static void show_usage( char *program_name )
 422 {
 423         fprintf( stdout,
 424 "Usage: %s [options] [producer [name=value]* ]+\n"
 425 "Options:\n"
 426 "  -attach filter[:arg] [name=value]*       Attach a filter to the output\n"
 427 "  -attach-cut filter[:arg] [name=value]*   Attach a filter to a cut\n"
 428 "  -attach-track filter[:arg] [name=value]* Attach a filter to a track\n"
 429 "  -attach-clip filter[:arg] [name=value]*  Attach a filter to a producer\n"
 430 "  -audio-track | -hide-video               Add an audio-only track\n"
 431 "  -blank frames                            Add blank silence to a track\n"
 432 "  -consumer id[:arg] [name=value]*         Set the consumer (sink)\n"
 433 "  -debug                                   Set the logging level to debug\n"
 434 "  -filter filter[:arg] [name=value]*       Add a filter to the current track\n"
 435 "  -group [name=value]*                     Apply properties repeatedly\n"
 436 "  -help                                    Show this message\n"
 437 "  -jack                                    Enable JACK transport synchronization\n"
 438 "  -join clips                              Join multiple clips into one cut\n"
 439 "  -mix length                              Add a mix between the last two cuts\n"
 440 "  -mixer transition                        Add a transition to the mix\n"
 441 "  -null-track | -hide-track                Add a hidden track\n"
 442 "  -profile name                            Set the processing settings\n"
 443 "  -progress                                Display progress along with position\n"
 444 "  -remove                                  Remove the most recent cut\n"
 445 "  -repeat times                            Repeat the last cut\n"
 446 "  -query                                   List all of the registered services\n"
 447 "  -query \"consumers\" | \"consumer\"=id       List consumers or show info about one\n"
 448 "  -query \"filters\" | \"filter\"=id           List filters or show info about one\n"
 449 "  -query \"producers\" | \"producer\"=id       List producers or show info about one\n"
 450 "  -query \"transitions\" | \"transition\"=id   List transitions, show info about one\n"
 451 "  -query \"profiles\" | \"profile\"=id         List profiles, show info about one\n"
 452 "  -query \"presets\" | \"preset\"=id           List presets, show info about one\n"
 453 "  -query \"formats\"                         List audio/video formats\n"
 454 "  -query \"audio_codecs\"                    List audio codecs\n"
 455 "  -query \"video_codecs\"                    List video codecs\n"
 456 "  -serialise [filename]                    Write the commands to a text file\n"
 457 "  -silent                                  Do not display position/transport\n"
 458 "  -split relative-frame                    Split the last cut into two cuts\n"
 459 "  -swap                                    Rearrange the last two cuts\n"
 460 "  -track                                   Add a track\n"
 461 "  -transition id[:arg] [name=value]*       Add a transition\n"
 462 "  -verbose                                 Set the logging level to verbose\n"
 463 "  -version                                 Show the version and copyright\n"
 464 "  -video-track | -hide-audio               Add a video-only track\n"
 465 "For more help: <http://www.mltframework.org/>\n",
 466         basename( program_name ) );
 467 }
 468
 469 static void query_metadata( mlt_repository repo, mlt_service_type type, const char *typestr, char *id )
 470 {
 471         mlt_properties metadata = mlt_repository_metadata( repo, type, id );
 472         if ( metadata )
 473         {
 474                 char *s = mlt_properties_serialise_yaml( metadata );
 475                 fprintf( stdout, "%s", s );
 476                 free( s );
 477         }
 478         else
 479         {
 480                 fprintf( stdout, "# No metadata for %s \"%s\"\n", typestr, id );
 481         }
 482 }
 483
 484 static int is_service_hidden(mlt_repository repo, mlt_service_type type, const char *service_name )
 485 {
 486         mlt_properties metadata = NULL;
 487         mlt_properties tags = NULL;
 488         metadata = mlt_repository_metadata(repo, type, service_name);
 489
 490         if( metadata )
 491         {
 492                 tags = mlt_properties_get_data( metadata, "tags", NULL );
 493                 if( tags )
 494                 {
 495                         int k;
 496                         for ( k = 0; k < mlt_properties_count( tags ); k++ )
 497                         {
 498                                 const char* value = mlt_properties_get_value(tags, k);
 499                                 if( !strcmp("Hidden", value) )
 500                                 {
 501                                         return 1;
 502                                 }
 503                         }
 504                 }
 505         }
 506         return 0;
 507 }
 508
 509 static void query_services( mlt_repository repo, mlt_service_type type )
 510 {
 511         mlt_properties services = NULL;
 512         const char *typestr = NULL;
 513         switch ( type )
 514         {
 515                 case consumer_type:
 516                         services = mlt_repository_consumers( repo );
 517                         typestr = "consumers";
 518                         break;
 519                 case filter_type:
 520                         services = mlt_repository_filters( repo );
 521                         typestr = "filters";
 522                         break;
 523                 case producer_type:
 524                         services = mlt_repository_producers( repo );
 525                         typestr = "producers";
 526                         break;
 527                 case transition_type:
 528                         services = mlt_repository_transitions( repo );
 529                         typestr = "transitions";
 530                         break;
 531                 default:
 532                         return;
 533         }
 534         fprintf( stdout, "---\n%s:\n", typestr );
 535         if ( services )
 536         {
 537                 int j;
 538                 for ( j = 0; j < mlt_properties_count( services ); j++ )
 539                 {
 540                         const char* service_name = mlt_properties_get_name( services, j );
 541                         if( !is_service_hidden(repo, type, service_name ) )
 542                                 fprintf( stdout, "  - %s\n", service_name );
 543                 }
 544         }
 545         fprintf( stdout, "...\n" );
 546 }
 547
 548 static void query_profiles()
 549 {
 550         mlt_properties profiles = mlt_profile_list();
 551         fprintf( stdout, "---\nprofiles:\n" );
 552         if ( profiles )
 553         {
 554                 int j;
 555                 for ( j = 0; j < mlt_properties_count( profiles ); j++ )
 556                         fprintf( stdout, "  - %s\n", mlt_properties_get_name( profiles, j ) );
 557         }
 558         fprintf( stdout, "...\n" );
 559         mlt_properties_close( profiles );
 560 }
 561
 562 static void query_profile( const char *id )
 563 {
 564         mlt_properties profiles = mlt_profile_list();
 565         mlt_properties profile = mlt_properties_get_data( profiles, id, NULL );
 566         if ( profile )
 567         {
 568                 char *s = mlt_properties_serialise_yaml( profile );
 569                 fprintf( stdout, "%s", s );
 570                 free( s );
 571         }
 572         else
 573         {
 574                 fprintf( stdout, "# No metadata for profile \"%s\"\n", id );
 575         }
 576         mlt_properties_close( profiles );
 577 }
 578
 579 static void query_presets()
 580 {
 581         mlt_properties presets = mlt_repository_presets();
 582         fprintf( stdout, "---\npresets:\n" );
 583         if ( presets )
 584         {
 585                 int j;
 586                 for ( j = 0; j < mlt_properties_count( presets ); j++ )
 587                         fprintf( stdout, "  - %s\n", mlt_properties_get_name( presets, j ) );
 588         }
 589         fprintf( stdout, "...\n" );
 590         mlt_properties_close( presets );
 591 }
 592
 593 static void query_preset( const char *id )
 594 {
 595         mlt_properties presets = mlt_repository_presets();
 596         mlt_properties preset = mlt_properties_get_data( presets, id, NULL );
 597         if ( preset )
 598         {
 599                 char *s = mlt_properties_serialise_yaml( preset );
 600                 fprintf( stdout, "%s", s );
 601                 free( s );
 602         }
 603         else
 604         {
 605                 fprintf( stdout, "# No metadata for preset \"%s\"\n", id );
 606         }
 607         mlt_properties_close( presets );
 608 }
 609
 610 static void query_formats( )
 611 {
 612         mlt_consumer consumer = mlt_factory_consumer( NULL, "avformat", NULL );
 613         if ( consumer )
 614         {
 615                 mlt_properties_set( MLT_CONSUMER_PROPERTIES(consumer), "f", "list" );
 616                 mlt_consumer_start( consumer );
 617                 mlt_consumer_close( consumer );
 618         }
 619         else
 620         {
 621                 fprintf( stdout, "# No formats - failed to load avformat consumer\n" );
 622         }
 623 }
 624
 625 static void query_acodecs( )
 626 {
 627         mlt_consumer consumer = mlt_factory_consumer( NULL, "avformat", NULL );
 628         if ( consumer )
 629         {
 630                 mlt_properties_set( MLT_CONSUMER_PROPERTIES(consumer), "acodec", "list" );
 631                 mlt_consumer_start( consumer );
 632                 mlt_consumer_close( consumer );
 633         }
 634         else
 635         {
 636                 fprintf( stdout, "# No audio codecs - failed to load avformat consumer\n" );
 637         }
 638 }
 639
 640 static void query_vcodecs( )
 641 {
 642         mlt_consumer consumer = mlt_factory_consumer( NULL, "avformat", NULL );
 643         if ( consumer )
 644         {
 645                 mlt_properties_set( MLT_CONSUMER_PROPERTIES(consumer), "vcodec", "list" );
 646                 mlt_consumer_start( consumer );
 647                 mlt_consumer_close( consumer );
 648         }
 649         else
 650         {
 651                 fprintf( stdout, "# No video codecs - failed to load avformat consumer\n" );
 652         }
 653 }
 654
 655 static void on_fatal_error( mlt_properties owner, mlt_consumer consumer )
 656 {
 657         mlt_consumer_stop( consumer );
 658         exit( EXIT_FAILURE );
 659 }
 660
 661 int main( int argc, char **argv )
 662 {
 663         int i;
 664         mlt_consumer consumer = NULL;
 665         mlt_producer melt = NULL;
 666         FILE *store = NULL;
 667         char *name = NULL;
 668         mlt_profile profile = NULL;
 669         int is_progress = 0;
 670         int is_silent = 0;
 671         mlt_profile backup_profile;
 672
 673         // Construct the factory
 674         mlt_repository repo = mlt_factory_init( NULL );
 675
 676 #if defined(WIN32) && !defined(MELT_NOSDL)
 677         is_silent = 1;
 678 #endif
 679
 680         for ( i = 1; i < argc; i ++ )
 681         {
 682                 // Check for serialisation switch
 683                 if ( !strcmp( argv[ i ], "-serialise" ) )
 684                 {
 685                         name = argv[ ++ i ];
 686                         if ( name != NULL && strstr( name, ".melt" ) )
 687                                 store = fopen( name, "w" );
 688                         else
 689                         {
 690                                 if ( name == NULL || name[0] == '-' )
 691                                         store = stdout;
 692                                 name = NULL;
 693                         }
 694                 }
 695                 // Look for the profile option
 696                 else if ( !strcmp( argv[ i ], "-profile" ) )
 697                 {
 698                         const char *pname = argv[ ++ i ];
 699                         if ( pname && pname[0] != '-' )
 700                                 profile = mlt_profile_init( pname );
 701                 }
 702                 else if ( !strcmp( argv[ i ], "-progress" ) )
 703                 {
 704                         is_progress = 1;
 705                 }
 706                 else if ( !strcmp( argv[ i ], "-progress2" ) )
 707                 {
 708                         is_progress = 2;
 709                 }
 710                 // Look for the query option
 711                 else if ( !strcmp( argv[ i ], "-query" ) )
 712                 {
 713                         const char *pname = argv[ ++ i ];
 714                         if ( pname && pname[0] != '-' )
 715                         {
 716                                 if ( !strcmp( pname, "consumers" ) || !strcmp( pname, "consumer" ) )
 717                                         query_services( repo, consumer_type );
 718                                 else if ( !strcmp( pname, "filters" ) || !strcmp( pname, "filter" ) )
 719                                         query_services( repo, filter_type );
 720                                 else if ( !strcmp( pname, "producers" ) || !strcmp( pname, "producer" ) )
 721                                         query_services( repo, producer_type );
 722                                 else if ( !strcmp( pname, "transitions" ) || !strcmp( pname, "transition" ) )
 723                                         query_services( repo, transition_type );
 724                                 else if ( !strcmp( pname, "profiles" ) || !strcmp( pname, "profile" ) )
 725                                         query_profiles();
 726                                 else if ( !strcmp( pname, "presets" ) || !strcmp( pname, "preset" ) )
 727                                         query_presets();
 728                                 else if ( !strncmp( pname, "format", 6 ) )
 729                                         query_formats();
 730                                 else if ( !strncmp( pname, "acodec", 6 ) || !strcmp( pname, "audio_codecs" ) )
 731                                         query_acodecs();
 732                                 else if ( !strncmp( pname, "vcodec", 6 ) || !strcmp( pname, "video_codecs" ) )
 733                                         query_vcodecs();
 734
 735                                 else if ( !strncmp( pname, "consumer=", 9 ) )
 736                                         query_metadata( repo, consumer_type, "consumer", strchr( pname, '=' ) + 1 );
 737                                 else if ( !strncmp( pname, "filter=", 7 ) )
 738                                         query_metadata( repo, filter_type, "filter", strchr( pname, '=' ) + 1 );
 739                                 else if ( !strncmp( pname, "producer=", 9 ) )
 740                                         query_metadata( repo, producer_type, "producer", strchr( pname, '=' ) + 1 );
 741                                 else if ( !strncmp( pname, "transition=", 11 ) )
 742                                         query_metadata( repo, transition_type, "transition", strchr( pname, '=' ) + 1 );
 743                                 else if ( !strncmp( pname, "profile=", 8 ) )
 744                                         query_profile( strchr( pname, '=' ) + 1 );
 745                                 else if ( !strncmp( pname, "preset=", 7 ) )
 746                                         query_preset( strchr( pname, '=' ) + 1 );
 747                                 else
 748                                         goto query_all;
 749                         }
 750                         else
 751                         {
 752 query_all:
 753                                 query_services( repo, consumer_type );
 754                                 query_services( repo, filter_type );
 755                                 query_services( repo, producer_type );
 756                                 query_services( repo, transition_type );
 757                                 fprintf( stdout, "# You can query the metadata for a specific service using:\n"
 758                                         "# -query <type>=<identifer>\n"
 759                                         "# where <type> is one of: consumer, filter, producer, or transition.\n" );
 760                         }
 761                         goto exit_factory;
 762                 }
 763                 else if ( !strcmp( argv[ i ], "-silent" ) )
 764                 {
 765                         is_silent = 1;
 766                 }
 767                 else if ( !strcmp( argv[ i ], "-verbose" ) )
 768                 {
 769                         mlt_log_set_level( MLT_LOG_VERBOSE );
 770                 }
 771                 else if ( !strcmp( argv[ i ], "-version" ) || !strcmp( argv[ i ], "--version" ) )
 772                 {
 773                         fprintf( stdout, "%s " VERSION "\n"
 774                                 "Copyright (C) 2002-2012 Ushodaya Enterprises Limited\n"
 775                                 "<http://www.mltframework.org/>\n"
 776                                 "This is free software; see the source for copying conditions.  There is NO\n"
 777                                 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n",
 778                                 basename( argv[0] ) );
 779                         goto exit_factory;
 780                 }
 781                 else if ( !strcmp( argv[ i ], "-debug" ) )
 782                 {
 783                         mlt_log_set_level( MLT_LOG_DEBUG );
 784                 }
 785         }
 786         if ( !is_silent && !isatty( STDIN_FILENO ) && !is_progress )
 787                 is_progress = 1;
 788
 789         // Create profile if not set explicitly
 790         if ( getenv( "MLT_PROFILE" ) )
 791                 profile = mlt_profile_init( NULL );
 792         if ( profile == NULL )
 793                 profile = mlt_profile_init( NULL );
 794         else
 795                 profile->is_explicit = 1;
 796
 797         // Look for the consumer option to load profile settings from consumer properties
 798         backup_profile = mlt_profile_clone( profile );
 799         load_consumer( &consumer, profile, argc, argv );
 800
 801         // If the consumer changed the profile, then it is explicit.
 802         if ( backup_profile && !profile->is_explicit && (
 803              profile->width != backup_profile->width ||
 804              profile->height != backup_profile->height ||
 805              profile->sample_aspect_num != backup_profile->sample_aspect_num ||
 806              profile->sample_aspect_den != backup_profile->sample_aspect_den ||
 807              profile->frame_rate_den != backup_profile->frame_rate_den ||
 808              profile->frame_rate_num != backup_profile->frame_rate_num ||
 809              profile->colorspace != backup_profile->colorspace ) )
 810                 profile->is_explicit = 1;
 811         mlt_profile_close( backup_profile );
 812
 813         // Get melt producer
 814         if ( argc > 1 )
 815                 melt = mlt_factory_producer( profile, "melt", &argv[ 1 ] );
 816
 817         if ( melt )
 818         {
 819                 // Generate an automatic profile if needed.
 820                 if ( ! profile->is_explicit )
 821                 {
 822                         mlt_profile_from_producer( profile, melt );
 823                         mlt_producer_close( melt );
 824                         melt = mlt_factory_producer( profile, "melt", &argv[ 1 ] );
 825                 }
 826
 827                 // Reload the consumer with the fully qualified profile.
 828                 // The producer or auto-profile could have changed the profile.
 829                 load_consumer( &consumer, profile, argc, argv );
 830
 831                 // See if producer has consumer already attached
 832                 if ( !store && !consumer )
 833                 {
 834                         consumer = MLT_CONSUMER( mlt_service_consumer( MLT_PRODUCER_SERVICE( melt ) ) );
 835                         if ( consumer )
 836                         {
 837                                 mlt_properties_inc_ref( MLT_CONSUMER_PROPERTIES(consumer) ); // because we explicitly close it
 838                                 mlt_properties_set_data( MLT_CONSUMER_PROPERTIES(consumer),
 839                                         "transport_callback", transport_action, 0, NULL, NULL );
 840                         }
 841                 }
 842
 843                 // If we have no consumer, default to sdl
 844                 if ( store == NULL && consumer == NULL )
 845                         consumer = create_consumer( profile, NULL );
 846         }
 847
 848         // Set transport properties on consumer and produder
 849         if ( consumer != NULL && melt != NULL )
 850         {
 851                 mlt_properties_set_data( MLT_CONSUMER_PROPERTIES( consumer ), "transport_producer", melt, 0, NULL, NULL );
 852                 mlt_properties_set_data( MLT_PRODUCER_PROPERTIES( melt ), "transport_consumer", consumer, 0, NULL, NULL );
 853                 if ( is_progress )
 854                         mlt_properties_set_int(  MLT_CONSUMER_PROPERTIES( consumer ), "progress", is_progress );
 855                 if ( is_silent )
 856                         mlt_properties_set_int(  MLT_CONSUMER_PROPERTIES( consumer ), "silent", is_silent );
 857         }
 858
 859         if ( argc > 1 && melt != NULL && mlt_producer_get_length( melt ) > 0 )
 860         {
 861                 // Parse the arguments
 862                 for ( i = 1; i < argc; i ++ )
 863                 {
 864                         if ( !strcmp( argv[ i ], "-jack" ) )
 865                         {
 866                                 setup_jack_transport( consumer, profile );
 867                         }
 868                         else if ( !strcmp( argv[ i ], "-serialise" ) )
 869                         {
 870                                 if ( store != stdout )
 871                                         i ++;
 872                         }
 873                         else
 874                         {
 875                                 if ( store != NULL )
 876                                         fprintf( store, "%s\n", argv[ i ] );
 877
 878                                 i ++;
 879
 880                                 while ( argv[ i ] != NULL && argv[ i ][ 0 ] != '-' )
 881                                 {
 882                                         if ( store != NULL )
 883                                                 fprintf( store, "%s\n", argv[ i ] );
 884                                         i += 1;
 885                                 }
 886
 887                                 i --;
 888                         }
 889                 }
 890
 891                 if ( consumer != NULL && store == NULL )
 892                 {
 893                         // Get melt's properties
 894                         mlt_properties melt_props = MLT_PRODUCER_PROPERTIES( melt );
 895
 896                         // Get the last group
 897                         mlt_properties group = mlt_properties_get_data( melt_props, "group", 0 );
 898
 899                         // Apply group settings
 900                         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 901                         mlt_properties_inherit( properties, group );
 902
 903                         // Connect consumer to melt
 904                         mlt_consumer_connect( consumer, MLT_PRODUCER_SERVICE( melt ) );
 905
 906                         // Start the consumer
 907                         mlt_events_listen( properties, consumer, "consumer-fatal-error", ( mlt_listener )on_fatal_error );
 908                         if ( mlt_consumer_start( consumer ) == 0 )
 909                         {
 910                                 // Transport functionality
 911                                 transport( melt, consumer );
 912
 913                                 // Stop the consumer
 914                                 mlt_consumer_stop( consumer );
 915                         }
 916                 }
 917                 else if ( store != NULL && store != stdout && name != NULL )
 918                 {
 919                         fprintf( stderr, "Project saved as %s.\n", name );
 920                         fclose( store );
 921                 }
 922         }
 923         else
 924         {
 925                 show_usage( argv[0] );
 926         }
 927
 928         // Disconnect producer from consumer to prevent ref cycles from closing services
 929         if ( consumer )
 930                 mlt_consumer_connect( consumer, NULL );
 931
 932         // Close the producer
 933         if ( melt != NULL )
 934                 mlt_producer_close( melt );
 935
 936         // Close the consumer
 937         if ( consumer != NULL )
 938                 mlt_consumer_close( consumer );
 939
 940         // Close the factory
 941         mlt_profile_close( profile );
 942
 943 exit_factory:
 944
 945         mlt_factory_close( );
 946
 947         return 0;
 948 }