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>
40 #include "miracle_unit.h"
41 #include "miracle_log.h"
42 #include "miracle_local.h"
44 #include <framework/mlt.h>
46 /* Forward references */
47 static void miracle_unit_status_communicate( miracle_unit );
49 /** Allocate a new DV transmission unit.
51 \return A new miracle_unit handle.
54 miracle_unit miracle_unit_init( int index, char *constructor )
56 miracle_unit this = NULL;
57 mlt_consumer consumer = NULL;
59 char *id = strdup( constructor );
60 char *arg = strchr( id, ':' );
65 consumer = mlt_factory_consumer( id, arg );
67 if ( consumer != NULL )
69 mlt_playlist playlist = mlt_playlist_init( );
70 this = calloc( sizeof( miracle_unit_t ), 1 );
71 this->properties = mlt_properties_new( );
72 this->producers = mlt_properties_new( );
73 mlt_properties_init( this->properties, this );
74 mlt_properties_set_int( this->properties, "unit", index );
75 mlt_properties_set_int( this->properties, "generation", 0 );
76 mlt_properties_set( this->properties, "constructor", constructor );
77 mlt_properties_set( this->properties, "id", id );
78 mlt_properties_set( this->properties, "arg", arg );
79 mlt_properties_set_data( this->properties, "consumer", consumer, 0, ( mlt_destructor )mlt_consumer_close, NULL );
80 mlt_properties_set_data( this->properties, "playlist", playlist, 0, ( mlt_destructor )mlt_playlist_close, NULL );
81 mlt_consumer_connect( consumer, mlt_playlist_service( playlist ) );
87 /** Communicate the current status to all threads waiting on the notifier.
90 static void miracle_unit_status_communicate( miracle_unit unit )
94 mlt_properties properties = unit->properties;
95 char *root_dir = mlt_properties_get( properties, "root" );
96 valerie_notifier notifier = mlt_properties_get_data( properties, "notifier", NULL );
97 valerie_status_t status;
99 if ( root_dir != NULL && notifier != NULL )
101 if ( miracle_unit_get_status( unit, &status ) == 0 )
102 /* if ( !( ( status.status == unit_playing || status.status == unit_paused ) &&
103 strcmp( status.clip, "" ) &&
104 !strcmp( status.tail_clip, "" ) &&
105 status.position == 0 &&
107 status.out == 0 ) ) */
108 valerie_notifier_put( notifier, &status );
113 /** Set the notifier info
116 void miracle_unit_set_notifier( miracle_unit this, valerie_notifier notifier, char *root_dir )
118 mlt_properties properties = this->properties;
119 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
120 mlt_properties playlist_properties = mlt_playlist_properties( playlist );
122 mlt_properties_set( properties, "root", root_dir );
123 mlt_properties_set_data( properties, "notifier", notifier, 0, NULL, NULL );
124 mlt_properties_set_data( playlist_properties, "notifier_arg", this, 0, NULL, NULL );
125 mlt_properties_set_data( playlist_properties, "notifier", miracle_unit_status_communicate, 0, NULL, NULL );
127 miracle_unit_status_communicate( this );
130 /** Create or locate a producer for the file specified.
133 static mlt_producer create_producer( miracle_unit unit, char *file )
135 // Get the unit properties
136 mlt_properties properties = unit->producers;
138 // Check if we already have loaded this file
139 mlt_producer result = mlt_properties_get_data( properties, file, NULL );
141 if ( result == NULL )
143 // 1st Line preferences
144 if ( strstr( file, ".inigo" ) )
146 char *args[ 2 ] = { file, NULL };
147 result = mlt_factory_producer( "inigo", args );
149 else if ( strstr( file, ".mpg" ) )
150 result = mlt_factory_producer( "mcmpeg", file );
151 else if ( strstr( file, ".mpeg" ) )
152 result = mlt_factory_producer( "mcmpeg", file );
153 else if ( strstr( file, ".dv" ) )
154 result = mlt_factory_producer( "mcdv", file );
155 else if ( strstr( file, ".dif" ) )
156 result = mlt_factory_producer( "mcdv", file );
157 else if ( strstr( file, ".jpg" ) )
158 result = mlt_factory_producer( "pixbuf", file );
159 else if ( strstr( file, ".JPG" ) )
160 result = mlt_factory_producer( "pixbuf", file );
161 else if ( strstr( file, ".jpeg" ) )
162 result = mlt_factory_producer( "pixbuf", file );
163 else if ( strstr( file, ".png" ) )
164 result = mlt_factory_producer( "pixbuf", file );
166 // 2nd Line fallbacks
167 if ( result == NULL && strstr( file, ".dv" ) )
168 result = mlt_factory_producer( "libdv", file );
169 else if ( result == NULL && strstr( file, ".dif" ) )
170 result = mlt_factory_producer( "libdv", file );
172 // 3rd line fallbacks
173 if ( result == NULL )
174 result = mlt_factory_producer( "ffmpeg", file );
176 // Now store the result
177 mlt_properties_set_data( properties, file, result, 0, ( mlt_destructor )mlt_producer_close, NULL );
183 /** Update the generation count.
186 static void update_generation( miracle_unit unit )
188 mlt_properties properties = unit->properties;
189 int generation = mlt_properties_get_int( properties, "generation" );
190 mlt_properties_set_int( properties, "generation", ++ generation );
193 /** Wipe all clips on the playlist for this unit.
196 static void clear_unit( miracle_unit unit )
198 mlt_properties properties = unit->properties;
199 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
200 mlt_producer producer = mlt_playlist_producer( playlist );
202 mlt_playlist_clear( playlist );
203 mlt_producer_seek( producer, 0 );
205 if ( unit->old_producers != NULL )
206 mlt_properties_close( unit->old_producers );
207 unit->old_producers = unit->producers;
208 unit->producers = mlt_properties_new( );
210 update_generation( unit );
213 /** Generate a report on all loaded clips.
216 void miracle_unit_report_list( miracle_unit unit, valerie_response response )
219 mlt_properties properties = unit->properties;
220 int generation = mlt_properties_get_int( properties, "generation" );
221 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
223 valerie_response_printf( response, 1024, "%d\n", generation );
225 for ( i = 0; i < mlt_playlist_count( playlist ); i ++ )
227 mlt_playlist_clip_info info;
228 mlt_playlist_get_clip_info( playlist , &info, i );
229 valerie_response_printf( response, 10240, "%d \"%s\" %lld %lld %lld %lld %.2f\n",
239 /** Load a clip into the unit clearing existing play list.
242 \param unit A miracle_unit handle.
243 \param clip The absolute file name of the clip to load.
244 \param in The starting frame (-1 for 0)
245 \param out The ending frame (-1 for maximum)
248 valerie_error_code miracle_unit_load( miracle_unit unit, char *clip, int64_t in, int64_t out, int flush )
250 // Have to clear the unit first
253 // Now try to create an producer
254 mlt_producer instance = create_producer( unit, clip );
256 if ( instance != NULL )
258 mlt_properties properties = unit->properties;
259 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
260 mlt_playlist_append_io( playlist, instance, in, out );
261 miracle_log( LOG_DEBUG, "loaded clip %s", clip );
262 miracle_unit_status_communicate( unit );
266 return valerie_invalid_file;
269 valerie_error_code miracle_unit_insert( miracle_unit unit, char *clip, int index, int64_t in, int64_t out )
271 mlt_producer instance = create_producer( unit, clip );
273 if ( instance != NULL )
275 mlt_properties properties = unit->properties;
276 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
277 mlt_playlist_insert( playlist, instance, index, in, out );
278 miracle_log( LOG_DEBUG, "inserted clip %s at %d", clip, index );
279 update_generation( unit );
280 miracle_unit_status_communicate( unit );
284 return valerie_invalid_file;
287 valerie_error_code miracle_unit_remove( miracle_unit unit, int index )
289 mlt_properties properties = unit->properties;
290 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
291 mlt_playlist_remove( playlist, index );
292 miracle_log( LOG_DEBUG, "removed clip at %d", index );
293 update_generation( unit );
294 miracle_unit_status_communicate( unit );
298 valerie_error_code miracle_unit_clean( miracle_unit unit )
301 miracle_log( LOG_DEBUG, "Cleaned playlist" );
305 valerie_error_code miracle_unit_move( miracle_unit unit, int src, int dest )
307 mlt_properties properties = unit->properties;
308 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
309 mlt_playlist_move( playlist, src, dest );
310 miracle_log( LOG_DEBUG, "moved clip %d to %d", src, dest );
311 update_generation( unit );
312 miracle_unit_status_communicate( unit );
316 /** Add a clip to the unit play list.
319 \param unit A miracle_unit handle.
320 \param clip The absolute file name of the clip to load.
321 \param in The starting frame (-1 for 0)
322 \param out The ending frame (-1 for maximum)
325 valerie_error_code miracle_unit_append( miracle_unit unit, char *clip, int64_t in, int64_t out )
327 mlt_producer instance = create_producer( unit, clip );
329 if ( instance != NULL )
331 mlt_properties properties = unit->properties;
332 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
333 mlt_playlist_append_io( playlist, instance, in, out );
334 miracle_log( LOG_DEBUG, "appended clip %s", clip );
335 update_generation( unit );
336 miracle_unit_status_communicate( unit );
340 return valerie_invalid_file;
343 /** Start playing the clip.
345 Start a dv-pump and commence dv1394 transmission.
348 \param unit A miracle_unit handle.
349 \param speed An integer that specifies the playback rate as a
350 percentage multiplied by 100.
353 void miracle_unit_play( miracle_unit_t *unit, int speed )
355 mlt_properties properties = unit->properties;
356 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
357 mlt_producer producer = mlt_playlist_producer( playlist );
358 mlt_producer_set_speed( producer, ( double )speed / 1000 );
359 miracle_unit_status_communicate( unit );
364 Terminates the dv_pump and halts dv1394 transmission.
366 \param unit A miracle_unit handle.
369 void miracle_unit_terminate( miracle_unit unit )
373 /** Query the status of unit playback.
375 \param unit A miracle_unit handle.
376 \return 1 if the unit is not playing, 0 if playing.
379 int miracle_unit_has_terminated( miracle_unit unit )
384 /** Transfer the currently loaded clip to another unit
387 int miracle_unit_transfer( miracle_unit dest_unit, miracle_unit src_unit )
392 /** Determine if unit is offline.
395 int miracle_unit_is_offline( miracle_unit unit )
400 /** Obtain the status for a given unit
403 int miracle_unit_get_status( miracle_unit unit, valerie_status status )
405 int error = unit == NULL;
407 memset( status, 0, sizeof( valerie_status_t ) );
411 mlt_properties properties = unit->properties;
412 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
413 mlt_producer producer = mlt_playlist_producer( playlist );
414 mlt_producer clip = mlt_playlist_current( playlist );
416 mlt_playlist_clip_info info;
417 int clip_index = mlt_playlist_current_clip( playlist );
418 mlt_playlist_get_clip_info( playlist, &info, clip_index );
420 if ( info.resource != NULL && strcmp( info.resource, "" ) )
422 strncpy( status->clip, info.resource, sizeof( status->clip ) );
423 status->speed = (int)( mlt_producer_get_speed( producer ) * 1000.0 );
424 status->fps = mlt_producer_get_fps( producer );
425 status->in = info.frame_in;
426 status->out = info.frame_out;
427 status->position = mlt_producer_position( clip );
428 status->length = mlt_producer_get_length( clip );
429 strncpy( status->tail_clip, info.resource, sizeof( status->tail_clip ) );
430 status->tail_in = info.frame_in;
431 status->tail_out = info.frame_out;
432 status->tail_position = mlt_producer_position( clip );
433 status->tail_length = mlt_producer_get_length( clip );
434 status->clip_index = mlt_playlist_current_clip( playlist );
435 status->seek_flag = 1;
438 status->generation = mlt_properties_get_int( properties, "generation" );
440 if ( !strcmp( status->clip, "" ) )
441 status->status = unit_not_loaded;
442 else if ( status->speed == 0 )
443 status->status = unit_paused;
445 status->status = unit_playing;
449 status->status = unit_undefined;
452 status->unit = mlt_properties_get_int( unit->properties, "unit" );
457 /** Change position in the playlist.
460 void miracle_unit_change_position( miracle_unit unit, int clip, int64_t position )
462 mlt_properties properties = unit->properties;
463 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
464 mlt_producer producer = mlt_playlist_producer( playlist );
465 mlt_playlist_clip_info info;
472 else if ( clip >= mlt_playlist_count( playlist ) )
474 clip = mlt_playlist_count( playlist ) - 1;
478 if ( mlt_playlist_get_clip_info( playlist, &info, clip ) == 0 )
480 int64_t frame_start = info.start;
481 int64_t frame_offset = position;
483 if ( frame_offset < 0 )
484 frame_offset = info.frame_out;
485 if ( frame_offset < info.frame_in )
486 frame_offset = info.frame_in;
487 if ( frame_offset >= info.frame_out )
488 frame_offset = info.frame_out;
490 mlt_producer_seek( producer, frame_start + frame_offset - info.frame_in );
493 miracle_unit_status_communicate( unit );
496 /** Get the index of the current clip.
499 int miracle_unit_get_current_clip( miracle_unit unit )
501 mlt_properties properties = unit->properties;
502 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
503 int clip_index = mlt_playlist_current_clip( playlist );
507 /** Set a clip's in point
510 int miracle_unit_set_clip_in( miracle_unit unit, int index, int64_t position )
512 mlt_properties properties = unit->properties;
513 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
514 mlt_playlist_clip_info info;
515 int error = mlt_playlist_get_clip_info( playlist, &info, index );
519 miracle_unit_play( unit, 0 );
520 error = mlt_playlist_resize_clip( playlist, index, position, info.frame_out );
521 update_generation( unit );
522 miracle_unit_change_position( unit, index, 0 );
528 /** Set a clip's out point.
531 int miracle_unit_set_clip_out( miracle_unit unit, int index, int64_t position )
533 mlt_properties properties = unit->properties;
534 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
535 mlt_playlist_clip_info info;
536 int error = mlt_playlist_get_clip_info( playlist, &info, index );
540 miracle_unit_play( unit, 0 );
541 error = mlt_playlist_resize_clip( playlist, index, info.frame_in, position );
542 update_generation( unit );
543 miracle_unit_status_communicate( unit );
544 miracle_unit_change_position( unit, index, -1 );
550 /** Step by specified position.
553 void miracle_unit_step( miracle_unit unit, int64_t offset )
555 mlt_properties properties = unit->properties;
556 mlt_playlist playlist = mlt_properties_get_data( properties, "playlist", NULL );
557 mlt_producer producer = mlt_playlist_producer( playlist );
558 mlt_position position = mlt_producer_frame( producer );
559 mlt_producer_seek( producer, position + offset );
562 /** Set the unit's clip mode regarding in and out points.
565 //void miracle_unit_set_mode( miracle_unit unit, dv_player_clip_mode mode )
567 //dv_player player = miracle_unit_get_dv_player( unit );
568 //if ( player != NULL )
569 //dv_player_set_clip_mode( player, mode );
570 //miracle_unit_status_communicate( unit );
573 /** Get the unit's clip mode regarding in and out points.
576 //dv_player_clip_mode miracle_unit_get_mode( miracle_unit unit )
578 //dv_player player = miracle_unit_get_dv_player( unit );
579 //return dv_player_get_clip_mode( player );
582 /** Set the unit's clip mode regarding eof handling.
585 //void miracle_unit_set_eof_action( miracle_unit unit, dv_player_eof_action action )
587 //dv_player player = miracle_unit_get_dv_player( unit );
588 //dv_player_set_eof_action( player, action );
589 //miracle_unit_status_communicate( unit );
592 /** Get the unit's clip mode regarding eof handling.
595 //dv_player_eof_action miracle_unit_get_eof_action( miracle_unit unit )
597 //dv_player player = miracle_unit_get_dv_player( unit );
598 //return dv_player_get_eof_action( player );
601 int miracle_unit_set( miracle_unit unit, char *name_value )
603 mlt_playlist playlist = mlt_properties_get_data( unit->properties, "playlist", NULL );
604 mlt_properties properties = mlt_playlist_properties( playlist );
605 return mlt_properties_parse( properties, name_value );
608 char *miracle_unit_get( miracle_unit unit, char *name )
610 mlt_playlist playlist = mlt_properties_get_data( unit->properties, "playlist", NULL );
611 mlt_properties properties = mlt_playlist_properties( playlist );
612 return mlt_properties_get( properties, name );
618 \param unit A miracle_unit handle.
621 void miracle_unit_close( miracle_unit unit )
625 miracle_log( LOG_DEBUG, "closing unit..." );
626 if ( unit->old_producers != NULL )
627 mlt_properties_close( unit->old_producers );
628 mlt_properties_close( unit->properties );
629 mlt_properties_close( unit->producers );
631 miracle_log( LOG_DEBUG, "... unit closed." );