2 * miracle_unit.c -- DV Transmission Unit Implementation
3 * Copyright (C) 2002-2003 Ushodaya Enterprises Limited
4 * Author: Dan Dennedy <dan@dennedy.org>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software Foundation,
18 * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 #include <sys/ioctl.h>
30 #include <sys/types.h>
39 #include "miracle_unit.h"
40 #include "miracle_log.h"
41 #include "miracle_local.h"
43 #include <framework/mlt.h>
45 /* Forward references */
46 static void miracle_unit_status_communicate( miracle_unit );
48 /** Allocate a new DV transmission unit.
50 \return A new miracle_unit handle.
53 miracle_unit miracle_unit_init( int index, char *constructor )
55 miracle_unit this = NULL;
56 mlt_consumer consumer = NULL;
58 char *id = strdup( constructor );
59 char *arg = strchr( id, ':' );
64 consumer = mlt_factory_consumer( id, arg );
66 if ( consumer != NULL )
68 mlt_playlist playlist = mlt_playlist_init( );
69 this = calloc( sizeof( miracle_unit_t ), 1 );
70 this->properties = mlt_properties_new( );
71 this->producers = mlt_properties_new( );
72 mlt_properties_init( this->properties, this );
73 mlt_properties_set_int( this->properties, "unit", index );
74 mlt_properties_set_int( this->properties, "generation", 0 );
75 mlt_properties_set( this->properties, "constructor", constructor );
76 mlt_properties_set( this->properties, "id", id );
77 mlt_properties_set( this->properties, "arg", arg );
78 mlt_properties_set_data( this->properties, "consumer", consumer, 0, ( mlt_destructor )mlt_consumer_close, NULL );
79 mlt_properties_set_data( this->properties, "playlist", playlist, 0, ( mlt_destructor )mlt_playlist_close, NULL );
80 mlt_consumer_connect( consumer, mlt_playlist_service( playlist ) );
86 /** Communicate the current status to all threads waiting on the notifier.
89 static void miracle_unit_status_communicate( miracle_unit unit )
93 mlt_properties properties = unit->properties;
94 char *root_dir = mlt_properties_get( properties, "root" );
95 valerie_notifier notifier = mlt_properties_get_data( properties, "notifier", NULL );
96 valerie_status_t status;
98 if ( root_dir != NULL && notifier != NULL )
100 if ( miracle_unit_get_status( unit, &status ) == 0 )
101 /* if ( !( ( status.status == unit_playing || status.status == unit_paused ) &&
102 strcmp( status.clip, "" ) &&
103 !strcmp( status.tail_clip, "" ) &&
104 status.position == 0 &&
106 status.out == 0 ) ) */
107 valerie_notifier_put( notifier, &status );
112 /** Set the notifier info
115 void miracle_unit_set_notifier( miracle_unit this, valerie_notifier notifier, char *root_dir )
117 mlt_properties properties = this->properties;
118 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
119 mlt_properties playlist_properties = mlt_playlist_properties( playlist );
121 mlt_properties_set( properties, "root", root_dir );
122 mlt_properties_set_data( properties, "notifier", notifier, 0, NULL, NULL );
123 mlt_properties_set_data( playlist_properties, "notifier_arg", this, 0, NULL, NULL );
124 mlt_properties_set_data( playlist_properties, "notifier", miracle_unit_status_communicate, 0, NULL, NULL );
126 miracle_unit_status_communicate( this );
129 /** Create or locate a producer for the file specified.
132 static mlt_producer create_producer( miracle_unit unit, char *file )
134 // Get the unit properties
135 mlt_properties properties = unit->producers;
137 // Check if we already have loaded this file
138 mlt_producer result = mlt_properties_get_data( properties, file, NULL );
140 if ( result == NULL )
142 // 1st Line preferences
143 if ( strstr( file, ".inigo" ) )
145 char *args[ 2 ] = { file, NULL };
146 result = mlt_factory_producer( "inigo", args );
148 else if ( strstr( file, ".mpg" ) )
149 result = mlt_factory_producer( "mcmpeg", file );
150 else if ( strstr( file, ".mpeg" ) )
151 result = mlt_factory_producer( "mcmpeg", file );
152 else if ( strstr( file, ".dv" ) )
153 result = mlt_factory_producer( "mcdv", file );
154 else if ( strstr( file, ".dif" ) )
155 result = mlt_factory_producer( "mcdv", file );
156 else if ( strstr( file, ".jpg" ) )
157 result = mlt_factory_producer( "pixbuf", file );
158 else if ( strstr( file, ".JPG" ) )
159 result = mlt_factory_producer( "pixbuf", file );
160 else if ( strstr( file, ".jpeg" ) )
161 result = mlt_factory_producer( "pixbuf", file );
162 else if ( strstr( file, ".png" ) )
163 result = mlt_factory_producer( "pixbuf", file );
165 // 2nd Line fallbacks
166 if ( result == NULL && strstr( file, ".dv" ) )
167 result = mlt_factory_producer( "libdv", file );
168 else if ( result == NULL && strstr( file, ".dif" ) )
169 result = mlt_factory_producer( "libdv", file );
171 // 3rd line fallbacks
172 if ( result == NULL )
173 result = mlt_factory_producer( "ffmpeg", file );
175 // Now store the result
176 mlt_properties_set_data( properties, file, result, 0, ( mlt_destructor )mlt_producer_close, NULL );
182 /** Update the generation count.
185 static void update_generation( miracle_unit unit )
187 mlt_properties properties = unit->properties;
188 int generation = mlt_properties_get_int( properties, "generation" );
189 mlt_properties_set_int( properties, "generation", ++ generation );
192 /** Wipe all clips on the playlist for this unit.
195 static void clear_unit( miracle_unit unit )
197 mlt_properties properties = unit->properties;
198 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
199 mlt_producer producer = mlt_playlist_producer( playlist );
201 mlt_playlist_clear( playlist );
202 mlt_producer_seek( producer, 0 );
204 if ( unit->old_producers != NULL )
205 mlt_properties_close( unit->old_producers );
206 unit->old_producers = unit->producers;
207 unit->producers = mlt_properties_new( );
209 update_generation( unit );
212 /** Generate a report on all loaded clips.
215 void miracle_unit_report_list( miracle_unit unit, valerie_response response )
218 mlt_properties properties = unit->properties;
219 int generation = mlt_properties_get_int( properties, "generation" );
220 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
222 valerie_response_printf( response, 1024, "%d\n", generation );
224 for ( i = 0; i < mlt_playlist_count( playlist ); i ++ )
226 mlt_playlist_clip_info info;
227 mlt_playlist_get_clip_info( playlist , &info, i );
228 valerie_response_printf( response, 10240, "%d \"%s\" %lld %lld %lld %lld %.2f\n",
238 /** Load a clip into the unit clearing existing play list.
241 \param unit A miracle_unit handle.
242 \param clip The absolute file name of the clip to load.
243 \param in The starting frame (-1 for 0)
244 \param out The ending frame (-1 for maximum)
247 valerie_error_code miracle_unit_load( miracle_unit unit, char *clip, int64_t in, int64_t out, int flush )
249 // Have to clear the unit first
252 // Now try to create an producer
253 mlt_producer instance = create_producer( unit, clip );
255 if ( instance != NULL )
257 mlt_properties properties = unit->properties;
258 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
259 mlt_playlist_append_io( playlist, instance, in, out );
260 miracle_log( LOG_DEBUG, "loaded clip %s", clip );
261 miracle_unit_status_communicate( unit );
265 return valerie_invalid_file;
268 valerie_error_code miracle_unit_insert( miracle_unit unit, char *clip, int index, int64_t in, int64_t out )
270 mlt_producer instance = create_producer( unit, clip );
272 if ( instance != NULL )
274 mlt_properties properties = unit->properties;
275 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
276 mlt_playlist_insert( playlist, instance, index, in, out );
277 miracle_log( LOG_DEBUG, "inserted clip %s at %d", clip, index );
278 update_generation( unit );
279 miracle_unit_status_communicate( unit );
283 return valerie_invalid_file;
286 valerie_error_code miracle_unit_remove( miracle_unit unit, int index )
288 mlt_properties properties = unit->properties;
289 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
290 mlt_playlist_remove( playlist, index );
291 miracle_log( LOG_DEBUG, "removed clip at %d", index );
292 update_generation( unit );
293 miracle_unit_status_communicate( unit );
297 valerie_error_code miracle_unit_clean( miracle_unit unit )
300 miracle_log( LOG_DEBUG, "Cleaned playlist" );
304 valerie_error_code miracle_unit_move( miracle_unit unit, int src, int dest )
306 mlt_properties properties = unit->properties;
307 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
308 mlt_playlist_move( playlist, src, dest );
309 miracle_log( LOG_DEBUG, "moved clip %d to %d", src, dest );
310 update_generation( unit );
311 miracle_unit_status_communicate( unit );
315 /** Add a clip to the unit play list.
318 \param unit A miracle_unit handle.
319 \param clip The absolute file name of the clip to load.
320 \param in The starting frame (-1 for 0)
321 \param out The ending frame (-1 for maximum)
324 valerie_error_code miracle_unit_append( miracle_unit unit, char *clip, int64_t in, int64_t out )
326 mlt_producer instance = create_producer( unit, clip );
328 if ( instance != NULL )
330 mlt_properties properties = unit->properties;
331 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
332 mlt_playlist_append_io( playlist, instance, in, out );
333 miracle_log( LOG_DEBUG, "appended clip %s", clip );
334 update_generation( unit );
335 miracle_unit_status_communicate( unit );
339 return valerie_invalid_file;
342 /** Start playing the clip.
344 Start a dv-pump and commence dv1394 transmission.
347 \param unit A miracle_unit handle.
348 \param speed An integer that specifies the playback rate as a
349 percentage multiplied by 100.
352 void miracle_unit_play( miracle_unit_t *unit, int speed )
354 mlt_properties properties = unit->properties;
355 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
356 mlt_producer producer = mlt_playlist_producer( playlist );
357 mlt_producer_set_speed( producer, ( double )speed / 1000 );
358 miracle_unit_status_communicate( unit );
363 Terminates the dv_pump and halts dv1394 transmission.
365 \param unit A miracle_unit handle.
368 void miracle_unit_terminate( miracle_unit unit )
372 /** Query the status of unit playback.
374 \param unit A miracle_unit handle.
375 \return 1 if the unit is not playing, 0 if playing.
378 int miracle_unit_has_terminated( miracle_unit unit )
383 /** Transfer the currently loaded clip to another unit
386 int miracle_unit_transfer( miracle_unit dest_unit, miracle_unit src_unit )
391 /** Determine if unit is offline.
394 int miracle_unit_is_offline( miracle_unit unit )
399 /** Obtain the status for a given unit
402 int miracle_unit_get_status( miracle_unit unit, valerie_status status )
404 int error = unit == NULL;
406 memset( status, 0, sizeof( valerie_status_t ) );
410 mlt_properties properties = unit->properties;
411 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
412 mlt_producer producer = mlt_playlist_producer( playlist );
413 mlt_producer clip = mlt_playlist_current( playlist );
415 mlt_playlist_clip_info info;
416 int clip_index = mlt_playlist_current_clip( playlist );
417 mlt_playlist_get_clip_info( playlist, &info, clip_index );
419 if ( info.resource != NULL && strcmp( info.resource, "" ) )
421 strncpy( status->clip, info.resource, sizeof( status->clip ) );
422 status->speed = (int)( mlt_producer_get_speed( producer ) * 1000.0 );
423 status->fps = mlt_producer_get_fps( producer );
424 status->in = info.frame_in;
425 status->out = info.frame_out;
426 status->position = mlt_producer_position( clip );
427 status->length = mlt_producer_get_length( clip );
428 strncpy( status->tail_clip, info.resource, sizeof( status->tail_clip ) );
429 status->tail_in = info.frame_in;
430 status->tail_out = info.frame_out;
431 status->tail_position = mlt_producer_position( clip );
432 status->tail_length = mlt_producer_get_length( clip );
433 status->clip_index = mlt_playlist_current_clip( playlist );
434 status->seek_flag = 1;
437 status->generation = mlt_properties_get_int( properties, "generation" );
439 if ( !strcmp( status->clip, "" ) )
440 status->status = unit_not_loaded;
441 else if ( status->speed == 0 )
442 status->status = unit_paused;
444 status->status = unit_playing;
448 status->status = unit_undefined;
451 status->unit = mlt_properties_get_int( unit->properties, "unit" );
456 /** Change position in the playlist.
459 void miracle_unit_change_position( miracle_unit unit, int clip, int64_t position )
461 mlt_properties properties = unit->properties;
462 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
463 mlt_producer producer = mlt_playlist_producer( playlist );
464 mlt_playlist_clip_info info;
471 else if ( clip >= mlt_playlist_count( playlist ) )
473 clip = mlt_playlist_count( playlist ) - 1;
474 position = 999999999999;
477 if ( mlt_playlist_get_clip_info( playlist, &info, clip ) == 0 )
479 int64_t frame_start = info.start;
480 int64_t frame_offset = position;
482 if ( frame_offset < 0 )
483 frame_offset = info.frame_out;
484 if ( frame_offset < info.frame_in )
485 frame_offset = info.frame_in;
486 if ( frame_offset >= info.frame_out )
487 frame_offset = info.frame_out;
489 mlt_producer_seek( producer, frame_start + frame_offset - info.frame_in );
492 miracle_unit_status_communicate( unit );
495 /** Get the index of the current clip.
498 int miracle_unit_get_current_clip( miracle_unit unit )
500 mlt_properties properties = unit->properties;
501 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
502 int clip_index = mlt_playlist_current_clip( playlist );
506 /** Set a clip's in point
509 int miracle_unit_set_clip_in( miracle_unit unit, int index, int64_t position )
511 mlt_properties properties = unit->properties;
512 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
513 mlt_playlist_clip_info info;
514 int error = mlt_playlist_get_clip_info( playlist, &info, index );
518 miracle_unit_play( unit, 0 );
519 error = mlt_playlist_resize_clip( playlist, index, position, info.frame_out );
520 update_generation( unit );
521 miracle_unit_change_position( unit, index, 0 );
527 /** Set a clip's out point.
530 int miracle_unit_set_clip_out( miracle_unit unit, int index, int64_t position )
532 mlt_properties properties = unit->properties;
533 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
534 mlt_playlist_clip_info info;
535 int error = mlt_playlist_get_clip_info( playlist, &info, index );
539 miracle_unit_play( unit, 0 );
540 error = mlt_playlist_resize_clip( playlist, index, info.frame_in, position );
541 update_generation( unit );
542 miracle_unit_status_communicate( unit );
543 miracle_unit_change_position( unit, index, -1 );
549 /** Step by specified position.
552 void miracle_unit_step( miracle_unit unit, int64_t offset )
554 mlt_properties properties = unit->properties;
555 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
556 mlt_producer producer = mlt_playlist_producer( playlist );
557 mlt_position position = mlt_producer_frame( producer );
558 mlt_producer_seek( producer, position + offset );
561 /** Set the unit's clip mode regarding in and out points.
564 //void miracle_unit_set_mode( miracle_unit unit, dv_player_clip_mode mode )
566 //dv_player player = miracle_unit_get_dv_player( unit );
567 //if ( player != NULL )
568 //dv_player_set_clip_mode( player, mode );
569 //miracle_unit_status_communicate( unit );
572 /** Get the unit's clip mode regarding in and out points.
575 //dv_player_clip_mode miracle_unit_get_mode( miracle_unit unit )
577 //dv_player player = miracle_unit_get_dv_player( unit );
578 //return dv_player_get_clip_mode( player );
581 /** Set the unit's clip mode regarding eof handling.
584 //void miracle_unit_set_eof_action( miracle_unit unit, dv_player_eof_action action )
586 //dv_player player = miracle_unit_get_dv_player( unit );
587 //dv_player_set_eof_action( player, action );
588 //miracle_unit_status_communicate( unit );
591 /** Get the unit's clip mode regarding eof handling.
594 //dv_player_eof_action miracle_unit_get_eof_action( miracle_unit unit )
596 //dv_player player = miracle_unit_get_dv_player( unit );
597 //return dv_player_get_eof_action( player );
600 int miracle_unit_set( miracle_unit unit, char *name_value )
602 mlt_playlist playlist = mlt_properties_get_data( unit->properties, "playlist", NULL );
603 mlt_properties properties = mlt_playlist_properties( playlist );
604 return mlt_properties_parse( properties, name_value );
607 char *miracle_unit_get( miracle_unit unit, char *name )
609 mlt_playlist playlist = mlt_properties_get_data( unit->properties, "playlist", NULL );
610 mlt_properties properties = mlt_playlist_properties( playlist );
611 return mlt_properties_get( properties, name );
617 \param unit A miracle_unit handle.
620 void miracle_unit_close( miracle_unit unit )
624 miracle_log( LOG_DEBUG, "closing unit..." );
625 if ( unit->old_producers != NULL )
626 mlt_properties_close( unit->old_producers );
627 mlt_properties_close( unit->properties );
628 mlt_properties_close( unit->producers );
630 miracle_log( LOG_DEBUG, "... unit closed." );