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 #include <unistd.h>
  32
  33 #include <framework/mlt.h>
  34
  35 #if defined(__DARWIN__) || defined(WIN32)
  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 = mlt_producer_position( producer );
  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         for ( i = 1; i < argc; i ++ )
 266         {
 267                 if ( !strcmp( argv[ i ], "-consumer" ) )
 268                 {
 269                         if ( *consumer )
 270                                 mlt_consumer_close( *consumer );
 271                         *consumer = create_consumer( profile, argv[ ++ i ] );
 272                         if ( *consumer )
 273                         {
 274                                 mlt_properties properties = MLT_CONSUMER_PROPERTIES( *consumer );
 275                                 while ( argv[ i + 1 ] != NULL && strstr( argv[ i + 1 ], "=" ) )
 276                                         mlt_properties_parse( properties, argv[ ++ i ] );
 277                         }
 278                 }
 279         }
 280 }
 281
 282 #if defined(__DARWIN__) || defined(WIN32)
 283
 284 static void event_handling( mlt_producer producer, mlt_consumer consumer )
 285 {
 286         SDL_Event event;
 287
 288         while ( SDL_PollEvent( &event ) )
 289         {
 290                 switch( event.type )
 291                 {
 292                         case SDL_QUIT:
 293                                 mlt_properties_set_int( MLT_PRODUCER_PROPERTIES( consumer ), "done", 1 );
 294                                 break;
 295
 296                         case SDL_KEYDOWN:
 297                                 if ( event.key.keysym.unicode < 0x80 && event.key.keysym.unicode > 0 )
 298                                 {
 299                                         char keyboard[ 2 ] = { event.key.keysym.unicode, 0 };
 300                                         transport_action( producer, keyboard );
 301                                 }
 302                                 break;
 303                 }
 304         }
 305 }
 306
 307 #endif
 308
 309 static void transport( mlt_producer producer, mlt_consumer consumer )
 310 {
 311         mlt_properties properties = MLT_PRODUCER_PROPERTIES( producer );
 312         int silent = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer ), "silent" );
 313         int progress = mlt_properties_get_int( MLT_CONSUMER_PROPERTIES( consumer ), "progress" );
 314         struct timespec tm = { 0, 40000 };
 315         int total_length = mlt_producer_get_length( producer );
 316         int last_position = 0;
 317
 318         if ( mlt_properties_get_int( properties, "done" ) == 0 && !mlt_consumer_is_stopped( consumer ) )
 319         {
 320                 if ( !silent && !progress )
 321                 {
 322                         term_init( );
 323
 324                         fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
 325                         fprintf( stderr, "|1=-10| |2= -5| |3= -2| |4= -1| |5=  0| |6=  1| |7=  2| |8=  5| |9= 10|\n" );
 326                         fprintf( stderr, "+-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+ +-----+\n" );
 327
 328                         fprintf( stderr, "+---------------------------------------------------------------------+\n" );
 329                         fprintf( stderr, "|               H = back 1 minute,  L = forward 1 minute              |\n" );
 330                         fprintf( stderr, "|                 h = previous frame,  l = next frame                 |\n" );
 331                         fprintf( stderr, "|           g = start of clip, j = next clip, k = previous clip       |\n" );
 332                         fprintf( stderr, "|                0 = restart, q = quit, space = play                  |\n" );
 333                         fprintf( stderr, "+---------------------------------------------------------------------+\n" );
 334                 }
 335
 336                 while( mlt_properties_get_int( properties, "done" ) == 0 && !mlt_consumer_is_stopped( consumer ) )
 337                 {
 338                         int value = ( silent || progress )? -1 : term_read( );
 339
 340                         if ( value != -1 )
 341                         {
 342                                 char string[ 2 ] = { value, 0 };
 343                                 transport_action( producer, string );
 344                         }
 345
 346 #if defined(__DARWIN__) || defined(WIN32)
 347                         event_handling( producer, consumer );
 348 #endif
 349
 350                         if ( !silent && mlt_properties_get_int( properties, "stats_off" ) == 0 )
 351                         {
 352                                 if ( progress )
 353                                 {
 354                                         int current_position = mlt_producer_position( producer );
 355                                         if ( current_position > last_position )
 356                                         {
 357                                                 fprintf( stderr, "Current Frame: %10d, percentage: %10d\r",
 358                                                         current_position, 100 * current_position / total_length );
 359                                                 last_position = current_position;
 360                                         }
 361                                 }
 362                                 else
 363                                 {
 364                                         fprintf( stderr, "Current Position: %10d\r", (int)mlt_consumer_position( consumer ) );
 365                                 }
 366                         }
 367
 368                         if ( silent || progress )
 369                                 nanosleep( &tm, NULL );
 370                 }
 371
 372                 if ( !silent )
 373                         fprintf( stderr, "\n" );
 374         }
 375 }
 376
 377 static void show_usage( char *program_name )
 378 {
 379         fprintf( stdout,
 380 "Usage: %s [options] [producer [name=value]* ]+\n"
 381 "Options:\n"
 382 "  -attach filter[:arg] [name=value]*       Attach a filter to the output\n"
 383 "  -attach-cut filter[:arg] [name=value]*   Attach a filter to a cut\n"
 384 "  -attach-track filter[:arg] [name=value]* Attach a filter to a track\n"
 385 "  -attach-clip filter[:arg] [name=value]*  Attach a filter to a producer\n"
 386 "  -audio-track | -hide-video               Add an audio-only track\n"
 387 "  -blank frames                            Add blank silence to a track\n"
 388 "  -consumer id[:arg] [name=value]*         Set the consumer (sink)\n"
 389 "  -debug                                   Set the logging level to debug\n"
 390 "  -filter filter[:arg] [name=value]*       Add a filter to the current track\n"
 391 "  -group [name=value]*                     Apply properties repeatedly\n"
 392 "  -help                                    Show this message\n"
 393 "  -jack                                    Enable JACK transport synchronization\n"
 394 "  -join clips                              Join multiple clips into one cut\n"
 395 "  -mix length                              Add a mix between the last two cuts\n"
 396 "  -mixer transition                        Add a transition to the mix\n"
 397 "  -null-track | -hide-track                Add a hidden track\n"
 398 "  -profile name                            Set the processing settings\n"
 399 "  -progress                                Display progress along with position\n"
 400 "  -remove                                  Remove the most recent cut\n"
 401 "  -repeat times                            Repeat the last cut\n"
 402 "  -query                                   List all of the registered services\n"
 403 "  -query \"consumers\" | \"consumer\"=id       List consumers or show info about one\n"
 404 "  -query \"filters\" | \"filter\"=id           List filters or show info about one\n"
 405 "  -query \"producers\" | \"producer\"=id       List producers or show info about one\n"
 406 "  -query \"transitions\" | \"transition\"=id   List transitions, show info about one\n"
 407 "  -query \"profiles\" | \"profile\"=id         List profiles, show info about one\n"
 408 "  -query \"presets\" | \"preset\"=id           List presets, show info about one\n"
 409 "  -query \"formats\"                         List audio/video formats\n"
 410 "  -query \"audio_codecs\"                    List audio codecs\n"
 411 "  -query \"video_codecs\"                    List video codecs\n"
 412 "  -serialise [filename]                    Write the commands to a text file\n"
 413 "  -silent                                  Do not display position/transport\n"
 414 "  -split relative-frame                    Split the last cut into two cuts\n"
 415 "  -swap                                    Rearrange the last two cuts\n"
 416 "  -track                                   Add a track\n"
 417 "  -transition id[:arg] [name=value]*       Add a transition\n"
 418 "  -verbose                                 Set the logging level to verbose\n"
 419 "  -version                                 Show the version and copyright\n"
 420 "  -video-track | -hide-audio               Add a video-only track\n"
 421 "For more help: <http://www.mltframework.org/>\n",
 422         basename( program_name ) );
 423 }
 424
 425 static void query_metadata( mlt_repository repo, mlt_service_type type, const char *typestr, char *id )
 426 {
 427         mlt_properties metadata = mlt_repository_metadata( repo, type, id );
 428         if ( metadata )
 429         {
 430                 char *s = mlt_properties_serialise_yaml( metadata );
 431                 fprintf( stdout, "%s", s );
 432                 free( s );
 433         }
 434         else
 435         {
 436                 fprintf( stdout, "# No metadata for %s \"%s\"\n", typestr, id );
 437         }
 438 }
 439
 440 static int is_service_hidden(mlt_repository repo, mlt_service_type type, const char *service_name )
 441 {
 442         mlt_properties metadata = NULL;
 443         mlt_properties tags = NULL;
 444         metadata = mlt_repository_metadata(repo, type, service_name);
 445
 446         if( metadata )
 447         {
 448                 tags = mlt_properties_get_data( metadata, "tags", NULL );
 449                 if( tags )
 450                 {
 451                         int k;
 452                         for ( k = 0; k < mlt_properties_count( tags ); k++ )
 453                         {
 454                                 const char* value = mlt_properties_get_value(tags, k);
 455                                 if( !strcmp("Hidden", value) )
 456                                 {
 457                                         return 1;
 458                                 }
 459                         }
 460                 }
 461         }
 462         return 0;
 463 }
 464
 465 static void query_services( mlt_repository repo, mlt_service_type type )
 466 {
 467         mlt_properties services = NULL;
 468         const char *typestr = NULL;
 469         switch ( type )
 470         {
 471                 case consumer_type:
 472                         services = mlt_repository_consumers( repo );
 473                         typestr = "consumers";
 474                         break;
 475                 case filter_type:
 476                         services = mlt_repository_filters( repo );
 477                         typestr = "filters";
 478                         break;
 479                 case producer_type:
 480                         services = mlt_repository_producers( repo );
 481                         typestr = "producers";
 482                         break;
 483                 case transition_type:
 484                         services = mlt_repository_transitions( repo );
 485                         typestr = "transitions";
 486                         break;
 487                 default:
 488                         return;
 489         }
 490         fprintf( stdout, "---\n%s:\n", typestr );
 491         if ( services )
 492         {
 493                 int j;
 494                 for ( j = 0; j < mlt_properties_count( services ); j++ )
 495                 {
 496                         const char* service_name = mlt_properties_get_name( services, j );
 497                         if( !is_service_hidden(repo, type, service_name ) )
 498                                 fprintf( stdout, "  - %s\n", service_name );
 499                 }
 500         }
 501         fprintf( stdout, "...\n" );
 502 }
 503
 504 static void query_profiles()
 505 {
 506         mlt_properties profiles = mlt_profile_list();
 507         fprintf( stdout, "---\nprofiles:\n" );
 508         if ( profiles )
 509         {
 510                 int j;
 511                 for ( j = 0; j < mlt_properties_count( profiles ); j++ )
 512                         fprintf( stdout, "  - %s\n", mlt_properties_get_name( profiles, j ) );
 513         }
 514         fprintf( stdout, "...\n" );
 515         mlt_properties_close( profiles );
 516 }
 517
 518 static void query_profile( const char *id )
 519 {
 520         mlt_properties profiles = mlt_profile_list();
 521         mlt_properties profile = mlt_properties_get_data( profiles, id, NULL );
 522         if ( profile )
 523         {
 524                 char *s = mlt_properties_serialise_yaml( profile );
 525                 fprintf( stdout, "%s", s );
 526                 free( s );
 527         }
 528         else
 529         {
 530                 fprintf( stdout, "# No metadata for profile \"%s\"\n", id );
 531         }
 532         mlt_properties_close( profiles );
 533 }
 534
 535 static void query_presets()
 536 {
 537         mlt_properties presets = mlt_repository_presets();
 538         fprintf( stdout, "---\npresets:\n" );
 539         if ( presets )
 540         {
 541                 int j;
 542                 for ( j = 0; j < mlt_properties_count( presets ); j++ )
 543                         fprintf( stdout, "  - %s\n", mlt_properties_get_name( presets, j ) );
 544         }
 545         fprintf( stdout, "...\n" );
 546         mlt_properties_close( presets );
 547 }
 548
 549 static void query_preset( const char *id )
 550 {
 551         mlt_properties presets = mlt_repository_presets();
 552         mlt_properties preset = mlt_properties_get_data( presets, id, NULL );
 553         if ( preset )
 554         {
 555                 char *s = mlt_properties_serialise_yaml( preset );
 556                 fprintf( stdout, "%s", s );
 557                 free( s );
 558         }
 559         else
 560         {
 561                 fprintf( stdout, "# No metadata for preset \"%s\"\n", id );
 562         }
 563         mlt_properties_close( presets );
 564 }
 565
 566 static void query_formats( )
 567 {
 568         mlt_consumer consumer = mlt_factory_consumer( NULL, "avformat", NULL );
 569         if ( consumer )
 570         {
 571                 mlt_properties_set( MLT_CONSUMER_PROPERTIES(consumer), "f", "list" );
 572                 mlt_consumer_start( consumer );
 573                 mlt_consumer_close( consumer );
 574         }
 575         else
 576         {
 577                 fprintf( stdout, "# No formats - failed to load avformat consumer\n" );
 578         }
 579 }
 580
 581 static void query_acodecs( )
 582 {
 583         mlt_consumer consumer = mlt_factory_consumer( NULL, "avformat", NULL );
 584         if ( consumer )
 585         {
 586                 mlt_properties_set( MLT_CONSUMER_PROPERTIES(consumer), "acodec", "list" );
 587                 mlt_consumer_start( consumer );
 588                 mlt_consumer_close( consumer );
 589         }
 590         else
 591         {
 592                 fprintf( stdout, "# No audio codecs - failed to load avformat consumer\n" );
 593         }
 594 }
 595
 596 static void query_vcodecs( )
 597 {
 598         mlt_consumer consumer = mlt_factory_consumer( NULL, "avformat", NULL );
 599         if ( consumer )
 600         {
 601                 mlt_properties_set( MLT_CONSUMER_PROPERTIES(consumer), "vcodec", "list" );
 602                 mlt_consumer_start( consumer );
 603                 mlt_consumer_close( consumer );
 604         }
 605         else
 606         {
 607                 fprintf( stdout, "# No video codecs - failed to load avformat consumer\n" );
 608         }
 609 }
 610
 611 static void on_fatal_error( mlt_properties owner, mlt_consumer consumer )
 612 {
 613         mlt_consumer_stop( consumer );
 614         exit( EXIT_FAILURE );
 615 }
 616
 617 int main( int argc, char **argv )
 618 {
 619         int i;
 620         mlt_consumer consumer = NULL;
 621         mlt_producer melt = NULL;
 622         FILE *store = NULL;
 623         char *name = NULL;
 624         mlt_profile profile = NULL;
 625         int is_progress = 0;
 626         int is_silent = 0;
 627         mlt_profile backup_profile;
 628
 629         // Construct the factory
 630         mlt_repository repo = mlt_factory_init( NULL );
 631
 632 #ifdef WIN32
 633         is_silent = 1;
 634 #endif
 635
 636         for ( i = 1; i < argc; i ++ )
 637         {
 638                 // Check for serialisation switch
 639                 if ( !strcmp( argv[ i ], "-serialise" ) )
 640                 {
 641                         name = argv[ ++ i ];
 642                         if ( name != NULL && strstr( name, ".melt" ) )
 643                                 store = fopen( name, "w" );
 644                         else
 645                         {
 646                                 if ( name == NULL || name[0] == '-' )
 647                                         store = stdout;
 648                                 name = NULL;
 649                         }
 650                 }
 651                 // Look for the profile option
 652                 else if ( !strcmp( argv[ i ], "-profile" ) )
 653                 {
 654                         const char *pname = argv[ ++ i ];
 655                         if ( pname && pname[0] != '-' )
 656                                 profile = mlt_profile_init( pname );
 657                 }
 658                 else if ( !strcmp( argv[ i ], "-progress" ) )
 659                 {
 660                         is_progress = 1;
 661                 }
 662                 // Look for the query option
 663                 else if ( !strcmp( argv[ i ], "-query" ) )
 664                 {
 665                         const char *pname = argv[ ++ i ];
 666                         if ( pname && pname[0] != '-' )
 667                         {
 668                                 if ( !strcmp( pname, "consumers" ) || !strcmp( pname, "consumer" ) )
 669                                         query_services( repo, consumer_type );
 670                                 else if ( !strcmp( pname, "filters" ) || !strcmp( pname, "filter" ) )
 671                                         query_services( repo, filter_type );
 672                                 else if ( !strcmp( pname, "producers" ) || !strcmp( pname, "producer" ) )
 673                                         query_services( repo, producer_type );
 674                                 else if ( !strcmp( pname, "transitions" ) || !strcmp( pname, "transition" ) )
 675                                         query_services( repo, transition_type );
 676                                 else if ( !strcmp( pname, "profiles" ) || !strcmp( pname, "profile" ) )
 677                                         query_profiles();
 678                                 else if ( !strcmp( pname, "presets" ) || !strcmp( pname, "preset" ) )
 679                                         query_presets();
 680                                 else if ( !strncmp( pname, "format", 6 ) )
 681                                         query_formats();
 682                                 else if ( !strncmp( pname, "acodec", 6 ) || !strcmp( pname, "audio_codecs" ) )
 683                                         query_acodecs();
 684                                 else if ( !strncmp( pname, "vcodec", 6 ) || !strcmp( pname, "video_codecs" ) )
 685                                         query_vcodecs();
 686
 687                                 else if ( !strncmp( pname, "consumer=", 9 ) )
 688                                         query_metadata( repo, consumer_type, "consumer", strchr( pname, '=' ) + 1 );
 689                                 else if ( !strncmp( pname, "filter=", 7 ) )
 690                                         query_metadata( repo, filter_type, "filter", strchr( pname, '=' ) + 1 );
 691                                 else if ( !strncmp( pname, "producer=", 9 ) )
 692                                         query_metadata( repo, producer_type, "producer", strchr( pname, '=' ) + 1 );
 693                                 else if ( !strncmp( pname, "transition=", 11 ) )
 694                                         query_metadata( repo, transition_type, "transition", strchr( pname, '=' ) + 1 );
 695                                 else if ( !strncmp( pname, "profile=", 8 ) )
 696                                         query_profile( strchr( pname, '=' ) + 1 );
 697                                 else if ( !strncmp( pname, "preset=", 7 ) )
 698                                         query_preset( strchr( pname, '=' ) + 1 );
 699                                 else
 700                                         goto query_all;
 701                         }
 702                         else
 703                         {
 704 query_all:
 705                                 query_services( repo, consumer_type );
 706                                 query_services( repo, filter_type );
 707                                 query_services( repo, producer_type );
 708                                 query_services( repo, transition_type );
 709                                 fprintf( stdout, "# You can query the metadata for a specific service using:\n"
 710                                         "# -query <type>=<identifer>\n"
 711                                         "# where <type> is one of: consumer, filter, producer, or transition.\n" );
 712                         }
 713                         goto exit_factory;
 714                 }
 715                 else if ( !strcmp( argv[ i ], "-silent" ) )
 716                 {
 717                         is_silent = 1;
 718                 }
 719                 else if ( !strcmp( argv[ i ], "-verbose" ) )
 720                 {
 721                         mlt_log_set_level( MLT_LOG_VERBOSE );
 722                 }
 723                 else if ( !strcmp( argv[ i ], "-version" ) || !strcmp( argv[ i ], "--version" ) )
 724                 {
 725                         fprintf( stdout, "MLT %s " VERSION "\n"
 726                                 "Copyright (C) 2002-2011 Ushodaya Enterprises Limited\n"
 727                                 "<http://www.mltframework.org/>\n"
 728                                 "This is free software; see the source for copying conditions.  There is NO\n"
 729                                 "warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.\n",
 730                                 basename( argv[0] ) );
 731                         goto exit_factory;
 732                 }
 733                 else if ( !strcmp( argv[ i ], "-debug" ) )
 734                 {
 735                         mlt_log_set_level( MLT_LOG_DEBUG );
 736                 }
 737         }
 738         if ( !is_silent && !isatty( STDIN_FILENO ) )
 739                 is_progress = 1;
 740
 741         // Create profile if not set explicitly
 742         if ( getenv( "MLT_PROFILE" ) )
 743                 profile = mlt_profile_init( NULL );
 744         if ( profile == NULL )
 745                 profile = mlt_profile_init( NULL );
 746         else
 747                 profile->is_explicit = 1;
 748
 749         // Look for the consumer option to load profile settings from consumer properties
 750         backup_profile = mlt_profile_clone( profile );
 751         load_consumer( &consumer, profile, argc, argv );
 752
 753         // If the consumer changed the profile, then it is explicit.
 754         if ( backup_profile && !profile->is_explicit && (
 755              profile->width != backup_profile->width ||
 756              profile->height != backup_profile->height ||
 757              profile->sample_aspect_num != backup_profile->sample_aspect_num ||
 758              profile->sample_aspect_den != backup_profile->sample_aspect_den ||
 759              profile->frame_rate_den != backup_profile->frame_rate_den ||
 760              profile->frame_rate_num != backup_profile->frame_rate_num ||
 761              profile->colorspace != backup_profile->colorspace ) )
 762                 profile->is_explicit = 1;
 763         mlt_profile_close( backup_profile );
 764
 765         // Get melt producer
 766         if ( argc > 1 )
 767                 melt = mlt_factory_producer( profile, "melt", &argv[ 1 ] );
 768
 769         if ( melt )
 770         {
 771                 // Generate an automatic profile if needed.
 772                 if ( ! profile->is_explicit )
 773                 {
 774                         mlt_profile_from_producer( profile, melt );
 775                         mlt_producer_close( melt );
 776                         melt = mlt_factory_producer( profile, "melt", &argv[ 1 ] );
 777                 }
 778
 779                 // Reload the consumer with the fully qualified profile.
 780                 // The producer or auto-profile could have changed the profile.
 781                 load_consumer( &consumer, profile, argc, argv );
 782
 783                 // If we have no consumer, default to sdl
 784                 if ( store == NULL && consumer == NULL )
 785                         consumer = create_consumer( profile, NULL );
 786         }
 787
 788         // Set transport properties on consumer and produder
 789         if ( consumer != NULL && melt != NULL )
 790         {
 791                 mlt_properties_set_data( MLT_CONSUMER_PROPERTIES( consumer ), "transport_producer", melt, 0, NULL, NULL );
 792                 mlt_properties_set_data( MLT_PRODUCER_PROPERTIES( melt ), "transport_consumer", consumer, 0, NULL, NULL );
 793                 if ( is_progress )
 794                         mlt_properties_set_int(  MLT_CONSUMER_PROPERTIES( consumer ), "progress", is_progress );
 795                 if ( is_silent )
 796                         mlt_properties_set_int(  MLT_CONSUMER_PROPERTIES( consumer ), "silent", is_silent );
 797         }
 798
 799         if ( argc > 1 && melt != NULL && mlt_producer_get_length( melt ) > 0 )
 800         {
 801                 // Parse the arguments
 802                 for ( i = 1; i < argc; i ++ )
 803                 {
 804                         if ( !strcmp( argv[ i ], "-jack" ) )
 805                         {
 806                                 setup_jack_transport( consumer, profile );
 807                         }
 808                         else if ( !strcmp( argv[ i ], "-serialise" ) )
 809                         {
 810                                 if ( store != stdout )
 811                                         i ++;
 812                         }
 813                         else
 814                         {
 815                                 if ( store != NULL )
 816                                         fprintf( store, "%s\n", argv[ i ] );
 817
 818                                 i ++;
 819
 820                                 while ( argv[ i ] != NULL && argv[ i ][ 0 ] != '-' )
 821                                 {
 822                                         if ( store != NULL )
 823                                                 fprintf( store, "%s\n", argv[ i ] );
 824                                         i += 1;
 825                                 }
 826
 827                                 i --;
 828                         }
 829                 }
 830
 831                 if ( consumer != NULL && store == NULL )
 832                 {
 833                         // Get melt's properties
 834                         mlt_properties melt_props = MLT_PRODUCER_PROPERTIES( melt );
 835
 836                         // Get the last group
 837                         mlt_properties group = mlt_properties_get_data( melt_props, "group", 0 );
 838
 839                         // Apply group settings
 840                         mlt_properties properties = MLT_CONSUMER_PROPERTIES( consumer );
 841                         mlt_properties_inherit( properties, group );
 842
 843                         // Connect consumer to melt
 844                         mlt_consumer_connect( consumer, MLT_PRODUCER_SERVICE( melt ) );
 845
 846                         // Start the consumer
 847                         mlt_events_listen( properties, consumer, "consumer-fatal-error", ( mlt_listener )on_fatal_error );
 848                         if ( mlt_consumer_start( consumer ) == 0 )
 849                         {
 850                                 // Transport functionality
 851                                 transport( melt, consumer );
 852
 853                                 // Stop the consumer
 854                                 mlt_consumer_stop( consumer );
 855                         }
 856                 }
 857                 else if ( store != NULL && store != stdout && name != NULL )
 858                 {
 859                         fprintf( stderr, "Project saved as %s.\n", name );
 860                         fclose( store );
 861                 }
 862         }
 863         else
 864         {
 865                 show_usage( argv[0] );
 866         }
 867
 868         // Close the producer
 869         if ( melt != NULL )
 870                 mlt_producer_close( melt );
 871
 872         // Close the consumer
 873         if ( consumer != NULL )
 874                 mlt_consumer_close( consumer );
 875
 876         // Close the factory
 877         mlt_profile_close( profile );
 878
 879 exit_factory:
 880
 881         mlt_factory_close( );
 882
 883         return 0;
 884 }