2 * producer_melt.c -- load from melt command line syntax
3 * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2.1 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
25 #include <framework/mlt.h>
27 mlt_producer producer_melt_init( mlt_profile profile, mlt_service_type type, const char *id, char **argv );
29 mlt_producer producer_melt_file_init( mlt_profile profile, mlt_service_type type, const char *id, char *file )
31 FILE *input = fopen( file, "r" );
32 char **args = calloc( sizeof( char * ), 1000 );
38 while( fgets( temp, 2048, input ) )
40 temp[ strlen( temp ) - 1 ] = '\0';
41 if ( strcmp( temp, "" ) )
42 args[ count ++ ] = strdup( temp );
46 mlt_producer result = producer_melt_init( profile, type, id, args );
50 mlt_properties properties = MLT_PRODUCER_PROPERTIES( result );
51 mlt_properties_set( properties, "resource", file );
55 free( args[ count ] );
61 static void track_service( mlt_field field, void *service, mlt_destructor destructor )
63 mlt_properties properties = mlt_field_properties( field );
64 int registered = mlt_properties_get_int( properties, "registered" );
65 char *key = mlt_properties_get( properties, "registered" );
66 mlt_properties_set_data( properties, key, service, 0, destructor, NULL );
67 mlt_properties_set_int( properties, "registered", ++ registered );
70 static mlt_producer create_producer( mlt_profile profile, mlt_field field, char *file )
72 mlt_producer result = mlt_factory_producer( profile, NULL, file );
75 track_service( field, result, ( mlt_destructor )mlt_producer_close );
80 static mlt_filter create_attach( mlt_profile profile, mlt_field field, char *id, int track )
82 char *temp = strdup( id );
83 char *arg = strchr( temp, ':' );
86 mlt_filter filter = mlt_factory_filter( profile, temp, arg );
88 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
93 static mlt_filter create_filter( mlt_profile profile, mlt_field field, char *id, int track )
95 char *temp = strdup( id );
96 char *arg = strchr( temp, ':' );
99 mlt_filter filter = mlt_factory_filter( profile, temp, arg );
100 if ( filter != NULL )
102 mlt_field_plant_filter( field, filter, track );
103 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
109 static mlt_transition create_transition( mlt_profile profile, mlt_field field, char *id, int track )
111 char *arg = strchr( id, ':' );
114 mlt_transition transition = mlt_factory_transition( profile, id, arg );
115 if ( transition != NULL )
117 mlt_field_plant_transition( field, transition, track, track + 1 );
118 track_service( field, transition, ( mlt_destructor )mlt_transition_close );
123 mlt_producer producer_melt_init( mlt_profile profile, mlt_service_type type, const char *id, char **argv )
127 mlt_producer producer = NULL;
128 mlt_tractor mix = NULL;
129 mlt_playlist playlist = mlt_playlist_init( );
130 mlt_properties group = mlt_properties_new( );
131 mlt_tractor tractor = mlt_tractor_new( );
132 mlt_properties properties = MLT_TRACTOR_PROPERTIES( tractor );
133 mlt_field field = mlt_tractor_field( tractor );
134 mlt_properties field_properties = mlt_field_properties( field );
135 mlt_multitrack multitrack = mlt_tractor_multitrack( tractor );
138 // Assistance for template construction (allows -track usage to specify the first track)
139 mlt_properties_set_int( MLT_PLAYLIST_PROPERTIES( playlist ), "_melt_first", 1 );
141 // We need to track the number of registered filters
142 mlt_properties_set_int( field_properties, "registered", 0 );
144 // Parse the arguments
146 for ( i = 0; argv[ i ] != NULL; i ++ )
148 if ( argv[ i + 1 ] == NULL && (
149 !strcmp( argv[ i ], "-attach" ) ||
150 !strcmp( argv[ i ], "-attach-cut" ) ||
151 !strcmp( argv[ i ], "-attach-track" ) ||
152 !strcmp( argv[ i ], "-attach-clip" ) ||
153 !strcmp( argv[ i ], "-repeat" ) ||
154 !strcmp( argv[ i ], "-split" ) ||
155 !strcmp( argv[ i ], "-join" ) ||
156 !strcmp( argv[ i ], "-mixer" ) ||
157 !strcmp( argv[ i ], "-mix" ) ||
158 !strcmp( argv[ i ], "-filter" ) ||
159 !strcmp( argv[ i ], "-transition" ) ||
160 !strcmp( argv[ i ], "-blank" ) ) )
162 fprintf( stderr, "Argument missing for %s.\n", argv[ i ] );
165 if ( !strcmp( argv[ i ], "-group" ) )
167 if ( mlt_properties_count( group ) != 0 )
169 mlt_properties_close( group );
170 group = mlt_properties_new( );
175 else if ( !strcmp( argv[ i ], "-attach" ) ||
176 !strcmp( argv[ i ], "-attach-cut" ) ||
177 !strcmp( argv[ i ], "-attach-track" ) ||
178 !strcmp( argv[ i ], "-attach-clip" ) )
180 int type = !strcmp( argv[ i ], "-attach" ) ? 0 :
181 !strcmp( argv[ i ], "-attach-cut" ) ? 1 :
182 !strcmp( argv[ i ], "-attach-track" ) ? 2 : 3;
183 mlt_filter filter = create_attach( profile, field, argv[ ++ i ], track );
184 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
186 mlt_playlist_clip_info info;
187 mlt_playlist_append( playlist, producer );
188 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
192 if ( type == 1 || type == 2 )
194 mlt_playlist_clip_info info;
195 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
199 if ( filter != NULL && mlt_playlist_count( playlist ) > 0 )
202 mlt_service_attach( ( mlt_service )properties, filter );
203 else if ( type == 1 )
204 mlt_service_attach( ( mlt_service )producer, filter );
205 else if ( type == 2 )
206 mlt_service_attach( ( mlt_service )playlist, filter );
207 else if ( type == 3 )
208 mlt_service_attach( ( mlt_service )mlt_producer_cut_parent( producer ), filter );
210 properties = MLT_FILTER_PROPERTIES( filter );
211 mlt_properties_inherit( properties, group );
213 else if ( filter != NULL )
215 mlt_service_attach( ( mlt_service )playlist, filter );
216 properties = MLT_FILTER_PROPERTIES( filter );
217 mlt_properties_inherit( properties, group );
220 else if ( !strcmp( argv[ i ], "-repeat" ) )
222 int repeat = atoi( argv[ ++ i ] );
223 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
224 mlt_playlist_append( playlist, producer );
226 if ( mlt_playlist_count( playlist ) > 0 )
228 mlt_playlist_clip_info info;
229 mlt_playlist_repeat_clip( playlist, mlt_playlist_count( playlist ) - 1, repeat );
230 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
232 properties = MLT_PRODUCER_PROPERTIES( producer );
235 else if ( !strcmp( argv[ i ], "-split" ) )
237 int split = atoi( argv[ ++ i ] );
238 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
239 mlt_playlist_append( playlist, producer );
241 if ( mlt_playlist_count( playlist ) > 0 )
243 mlt_playlist_clip_info info;
244 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
245 split = split < 0 ? info.frame_out + split : split;
246 mlt_playlist_split( playlist, mlt_playlist_count( playlist ) - 1, split );
247 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
249 properties = MLT_PRODUCER_PROPERTIES( producer );
252 else if ( !strcmp( argv[ i ], "-swap" ) )
254 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
255 mlt_playlist_append( playlist, producer );
257 if ( mlt_playlist_count( playlist ) >= 2 )
259 mlt_playlist_clip_info info;
260 mlt_playlist_move( playlist, mlt_playlist_count( playlist ) - 2, mlt_playlist_count( playlist ) - 1 );
261 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
263 properties = MLT_PRODUCER_PROPERTIES( producer );
266 else if ( !strcmp( argv[ i ], "-join" ) )
268 int clips = atoi( argv[ ++ i ] );
269 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
270 mlt_playlist_append( playlist, producer );
272 if ( mlt_playlist_count( playlist ) > 0 )
274 mlt_playlist_clip_info info;
275 int clip = clips <= 0 ? 0 : mlt_playlist_count( playlist ) - clips - 1;
276 if ( clip < 0 ) clip = 0;
277 if ( clip >= mlt_playlist_count( playlist ) ) clip = mlt_playlist_count( playlist ) - 2;
278 if ( clips < 0 ) clips = mlt_playlist_count( playlist ) - 1;
279 mlt_playlist_join( playlist, clip, clips, 0 );
280 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
282 properties = MLT_PRODUCER_PROPERTIES( producer );
285 else if ( !strcmp( argv[ i ], "-remove" ) )
287 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
288 mlt_playlist_append( playlist, producer );
290 if ( mlt_playlist_count( playlist ) > 0 )
292 mlt_playlist_clip_info info;
293 mlt_playlist_remove( playlist, mlt_playlist_count( playlist ) - 1 );
294 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
296 properties = MLT_PRODUCER_PROPERTIES( producer );
299 else if ( !strcmp( argv[ i ], "-mix" ) )
301 int length = atoi( argv[ ++ i ] );
302 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
303 mlt_playlist_append( playlist, producer );
305 if ( mlt_playlist_count( playlist ) >= 2 )
307 if ( mlt_playlist_mix( playlist, mlt_playlist_count( playlist ) - 2, length, NULL ) == 0 )
309 mlt_playlist_clip_info info;
310 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
311 if ( mlt_properties_get_data( ( mlt_properties )info.producer, "mlt_mix", NULL ) == NULL )
312 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 2 );
313 mix = ( mlt_tractor )mlt_properties_get_data( ( mlt_properties )info.producer, "mlt_mix", NULL );
318 fprintf( stderr, "Mix failed?\n" );
323 fprintf( stderr, "Invalid position for a mix...\n" );
326 else if ( !strcmp( argv[ i ], "-mixer" ) )
330 char *id = strdup( argv[ ++ i ] );
331 char *arg = strchr( id, ':' );
332 mlt_field field = mlt_tractor_field( mix );
333 mlt_transition transition = NULL;
336 transition = mlt_factory_transition( profile, id, arg );
337 if ( transition != NULL )
339 properties = MLT_TRANSITION_PROPERTIES( transition );
340 mlt_properties_inherit( properties, group );
341 mlt_field_plant_transition( field, transition, 0, 1 );
342 mlt_properties_set_position( properties, "in", 0 );
343 mlt_properties_set_position( properties, "out", mlt_producer_get_out( ( mlt_producer )mix ) );
344 mlt_transition_close( transition );
350 fprintf( stderr, "Invalid mixer...\n" );
353 else if ( !strcmp( argv[ i ], "-filter" ) )
355 mlt_filter filter = create_filter( profile, field, argv[ ++ i ], track );
356 if ( filter != NULL )
358 properties = MLT_FILTER_PROPERTIES( filter );
359 mlt_properties_inherit( properties, group );
362 else if ( !strcmp( argv[ i ], "-transition" ) )
364 mlt_transition transition = create_transition( profile, field, argv[ ++ i ], track - 1 );
365 if ( transition != NULL )
367 properties = MLT_TRANSITION_PROPERTIES( transition );
368 mlt_properties_inherit( properties, group );
371 else if ( !strcmp( argv[ i ], "-blank" ) )
373 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
374 mlt_playlist_append( playlist, producer );
376 mlt_playlist_blank( playlist, atof( argv[ ++ i ] ) );
378 else if ( !strcmp( argv[ i ], "-track" ) ||
379 !strcmp( argv[ i ], "-null-track" ) ||
380 !strcmp( argv[ i ], "-video-track" ) ||
381 !strcmp( argv[ i ], "-audio-track" ) ||
382 !strcmp( argv[ i ], "-hide-track" ) ||
383 !strcmp( argv[ i ], "-hide-video" ) ||
384 !strcmp( argv[ i ], "-hide-audio" ) )
386 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
387 mlt_playlist_append( playlist, producer );
389 if ( !mlt_properties_get_int( MLT_PLAYLIST_PROPERTIES( playlist ), "_melt_first" ) ||
390 mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( playlist ) ) > 0 )
392 mlt_multitrack_connect( multitrack, MLT_PLAYLIST_PRODUCER( playlist ), track ++ );
393 track_service( field, playlist, ( mlt_destructor )mlt_playlist_close );
394 playlist = mlt_playlist_init( );
396 if ( playlist != NULL )
398 properties = MLT_PLAYLIST_PROPERTIES( playlist );
399 if ( !strcmp( argv[ i ], "-null-track" ) || !strcmp( argv[ i ], "-hide-track" ) )
400 mlt_properties_set_int( properties, "hide", 3 );
401 else if ( !strcmp( argv[ i ], "-audio-track" ) || !strcmp( argv[ i ], "-hide-video" ) )
402 mlt_properties_set_int( properties, "hide", 1 );
403 else if ( !strcmp( argv[ i ], "-video-track" ) || !strcmp( argv[ i ], "-hide-audio" ) )
404 mlt_properties_set_int( properties, "hide", 2 );
407 else if ( strchr( argv[ i ], '=' ) && strstr( argv[ i ], "<?xml" ) != argv[ i ] &&
408 // Prevent interpreting URL with parameters as a property.
409 // This does not support property names containing a colon.
410 ( !strchr( argv[ i ], ':' ) || strchr( argv[ i ], ':' ) > strchr( argv[ i ], '=' ) ) )
412 mlt_properties_parse( properties, argv[ i ] );
414 else if ( argv[ i ][ 0 ] != '-' )
416 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
417 mlt_playlist_append( playlist, producer );
418 if ( title == NULL && strstr( argv[ i ], "<?xml" ) != argv[ i ] )
420 producer = create_producer( profile, field, argv[ i ] );
421 if ( producer != NULL )
423 properties = MLT_PRODUCER_PROPERTIES( producer );
424 mlt_properties_inherit( properties, group );
428 fprintf( stderr, "Failed to load \"%s\"\n", argv[ i ] );
434 if ( !strcmp( argv[ i ], "-serialise" ) ||
435 !strcmp( argv[ i ], "-consumer" ) ||
436 !strcmp( argv[ i ], "-profile" ) )
442 while ( argv[ i ] != NULL && strchr( argv[ i ], '=' ) )
452 // Connect last producer to playlist
453 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
454 mlt_playlist_append( playlist, producer );
456 // Track the last playlist too
457 track_service( field, playlist, ( mlt_destructor )mlt_playlist_close );
459 // We must have a playlist to connect
460 if ( !mlt_properties_get_int( MLT_PLAYLIST_PROPERTIES( playlist ), "_melt_first" ) ||
461 mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( playlist ) ) > 0 )
462 mlt_multitrack_connect( multitrack, MLT_PLAYLIST_PRODUCER( playlist ), track );
464 mlt_producer prod = MLT_TRACTOR_PRODUCER( tractor );
465 mlt_producer_optimise( prod );
466 mlt_properties props = MLT_TRACTOR_PROPERTIES( tractor );
467 mlt_properties_set_data( props, "group", group, 0, ( mlt_destructor )mlt_properties_close, NULL );
468 mlt_properties_set_position( props, "length", mlt_producer_get_out( MLT_MULTITRACK_PRODUCER( multitrack ) ) + 1 );
469 mlt_producer_set_in_and_out( prod, 0, mlt_producer_get_out( MLT_MULTITRACK_PRODUCER( multitrack ) ) );
471 mlt_properties_set( props, "title", strchr( title, '/' ) ? strrchr( title, '/' ) + 1 : title );
473 // If the last producer has a consumer property connect it tractor
476 mlt_consumer consumer = mlt_properties_get_data( MLT_PRODUCER_PROPERTIES(producer), "consumer", NULL );
478 mlt_consumer_connect( consumer, MLT_PRODUCER_SERVICE(prod) );