projects / melted / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
producer_inigo.c: bugfix segfault on unchecked pointer
[melted] / src / modules / inigo / producer_inigo.c
1 /*
2 * producer_inigo.c -- simple inigo test case
3 * Copyright (C) 2003-2004 Ushodaya Enterprises Limited
4 * Author: Charles Yates <charles.yates@pandora.be>
5 *
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.
10 *
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.
15 *
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
19 */
20
21 #include <stdio.h>
22 #include <stdlib.h>
23 #include <string.h>
24
25 #include <framework/mlt.h>
26
27 mlt_producer producer_inigo_init( mlt_profile profile, mlt_service_type type, const char *id, char **argv );
28
29 mlt_producer producer_inigo_file_init( mlt_profile profile, mlt_service_type type, const char *id, char *file )
30 {
31 FILE *input = fopen( file, "r" );
32 char **args = calloc( sizeof( char * ), 1000 );
33 int count = 0;
34 char temp[ 2048 ];
35
36 if ( input != NULL )
37 {
38 while( fgets( temp, 2048, input ) )
39 {
40 temp[ strlen( temp ) - 1 ] = '\0';
41 if ( strcmp( temp, "" ) )
42 args[ count ++ ] = strdup( temp );
43 }
44 }
45
46 mlt_producer result = producer_inigo_init( profile, type, id, args );
47
48 if ( result != NULL )
49 {
50 mlt_properties properties = MLT_PRODUCER_PROPERTIES( result );
51 mlt_properties_set( properties, "resource", file );
52 }
53
54 while( count -- )
55 free( args[ count ] );
56 free( args );
57
58 return result;
59 }
60
61 static void track_service( mlt_field field, void *service, mlt_destructor destructor )
62 {
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 );
68 }
69
70 static mlt_producer create_producer( mlt_profile profile, mlt_field field, char *file )
71 {
72 mlt_producer result = mlt_factory_producer( profile, "fezzik", file );
73
74 if ( result != NULL )
75 track_service( field, result, ( mlt_destructor )mlt_producer_close );
76
77 return result;
78 }
79
80 static mlt_filter create_attach( mlt_profile profile, mlt_field field, char *id, int track )
81 {
82 char *temp = strdup( id );
83 char *arg = strchr( temp, ':' );
84 if ( arg != NULL )
85 *arg ++ = '\0';
86 mlt_filter filter = mlt_factory_filter( profile, temp, arg );
87 if ( filter != NULL )
88 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
89 free( temp );
90 return filter;
91 }
92
93 static mlt_filter create_filter( mlt_profile profile, mlt_field field, char *id, int track )
94 {
95 char *temp = strdup( id );
96 char *arg = strchr( temp, ':' );
97 if ( arg != NULL )
98 *arg ++ = '\0';
99 mlt_filter filter = mlt_factory_filter( profile, temp, arg );
100 if ( filter != NULL )
101 {
102 mlt_field_plant_filter( field, filter, track );
103 track_service( field, filter, ( mlt_destructor )mlt_filter_close );
104 }
105 free( temp );
106 return filter;
107 }
108
109 static mlt_transition create_transition( mlt_profile profile, mlt_field field, char *id, int track )
110 {
111 char *arg = strchr( id, ':' );
112 if ( arg != NULL )
113 *arg ++ = '\0';
114 mlt_transition transition = mlt_factory_transition( profile, id, arg );
115 if ( transition != NULL )
116 {
117 mlt_field_plant_transition( field, transition, track, track + 1 );
118 track_service( field, transition, ( mlt_destructor )mlt_transition_close );
119 }
120 return transition;
121 }
122
123 mlt_producer producer_inigo_init( mlt_profile profile, mlt_service_type type, const char *id, char **argv )
124 {
125 int i;
126 int track = 0;
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 );
136 char *title = NULL;
137
138 // Assistance for template construction (allows -track usage to specify the first track)
139 mlt_properties_set_int( MLT_PLAYLIST_PROPERTIES( playlist ), "_inigo_first", 1 );
140
141 // We need to track the number of registered filters
142 mlt_properties_set_int( field_properties, "registered", 0 );
143
144 // Parse the arguments
145 if ( argv )
146 for ( i = 0; argv[ i ] != NULL; i ++ )
147 {
148 if ( !strcmp( argv[ i ], "-group" ) )
149 {
150 if ( mlt_properties_count( group ) != 0 )
151 {
152 mlt_properties_close( group );
153 group = mlt_properties_new( );
154 }
155 if ( group != NULL )
156 properties = group;
157 }
158 else if ( !strcmp( argv[ i ], "-attach" ) ||
159 !strcmp( argv[ i ], "-attach-cut" ) ||
160 !strcmp( argv[ i ], "-attach-track" ) ||
161 !strcmp( argv[ i ], "-attach-clip" ) )
162 {
163 int type = !strcmp( argv[ i ], "-attach" ) ? 0 :
164 !strcmp( argv[ i ], "-attach-cut" ) ? 1 :
165 !strcmp( argv[ i ], "-attach-track" ) ? 2 : 3;
166 mlt_filter filter = create_attach( profile, field, argv[ ++ i ], track );
167 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
168 {
169 mlt_playlist_clip_info info;
170 mlt_playlist_append( playlist, producer );
171 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
172 producer = info.cut;
173 }
174
175 if ( type == 1 || type == 2 )
176 {
177 mlt_playlist_clip_info info;
178 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
179 producer = info.cut;
180 }
181
182 if ( filter != NULL && mlt_playlist_count( playlist ) > 0 )
183 {
184 if ( type == 0 )
185 mlt_service_attach( ( mlt_service )properties, filter );
186 else if ( type == 1 )
187 mlt_service_attach( ( mlt_service )producer, filter );
188 else if ( type == 2 )
189 mlt_service_attach( ( mlt_service )playlist, filter );
190 else if ( type == 3 )
191 mlt_service_attach( ( mlt_service )mlt_producer_cut_parent( producer ), filter );
192
193 properties = MLT_FILTER_PROPERTIES( filter );
194 mlt_properties_inherit( properties, group );
195 }
196 else if ( filter != NULL )
197 {
198 mlt_service_attach( ( mlt_service )playlist, filter );
199 properties = MLT_FILTER_PROPERTIES( filter );
200 mlt_properties_inherit( properties, group );
201 }
202 }
203 else if ( !strcmp( argv[ i ], "-repeat" ) )
204 {
205 int repeat = atoi( argv[ ++ i ] );
206 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
207 mlt_playlist_append( playlist, producer );
208 producer = NULL;
209 if ( mlt_playlist_count( playlist ) > 0 )
210 {
211 mlt_playlist_clip_info info;
212 mlt_playlist_repeat_clip( playlist, mlt_playlist_count( playlist ) - 1, repeat );
213 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
214 producer = info.cut;
215 properties = MLT_PRODUCER_PROPERTIES( producer );
216 }
217 }
218 else if ( !strcmp( argv[ i ], "-split" ) )
219 {
220 int split = atoi( argv[ ++ i ] );
221 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
222 mlt_playlist_append( playlist, producer );
223 producer = NULL;
224 if ( mlt_playlist_count( playlist ) > 0 )
225 {
226 mlt_playlist_clip_info info;
227 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
228 split = split < 0 ? info.frame_out + split : split;
229 mlt_playlist_split( playlist, mlt_playlist_count( playlist ) - 1, split );
230 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
231 producer = info.cut;
232 properties = MLT_PRODUCER_PROPERTIES( producer );
233 }
234 }
235 else if ( !strcmp( argv[ i ], "-swap" ) )
236 {
237 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
238 mlt_playlist_append( playlist, producer );
239 producer = NULL;
240 if ( mlt_playlist_count( playlist ) >= 2 )
241 {
242 mlt_playlist_clip_info info;
243 mlt_playlist_move( playlist, mlt_playlist_count( playlist ) - 2, mlt_playlist_count( playlist ) - 1 );
244 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
245 producer = info.cut;
246 properties = MLT_PRODUCER_PROPERTIES( producer );
247 }
248 }
249 else if ( !strcmp( argv[ i ], "-join" ) )
250 {
251 int clips = atoi( argv[ ++ i ] );
252 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
253 mlt_playlist_append( playlist, producer );
254 producer = NULL;
255 if ( mlt_playlist_count( playlist ) > 0 )
256 {
257 mlt_playlist_clip_info info;
258 int clip = clips <= 0 ? 0 : mlt_playlist_count( playlist ) - clips - 1;
259 if ( clip < 0 ) clip = 0;
260 if ( clip >= mlt_playlist_count( playlist ) ) clip = mlt_playlist_count( playlist ) - 2;
261 if ( clips < 0 ) clips = mlt_playlist_count( playlist ) - 1;
262 mlt_playlist_join( playlist, clip, clips, 0 );
263 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
264 producer = info.cut;
265 properties = MLT_PRODUCER_PROPERTIES( producer );
266 }
267 }
268 else if ( !strcmp( argv[ i ], "-remove" ) )
269 {
270 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
271 mlt_playlist_append( playlist, producer );
272 producer = NULL;
273 if ( mlt_playlist_count( playlist ) > 0 )
274 {
275 mlt_playlist_clip_info info;
276 mlt_playlist_remove( playlist, mlt_playlist_count( playlist ) - 1 );
277 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
278 producer = info.cut;
279 properties = MLT_PRODUCER_PROPERTIES( producer );
280 }
281 }
282 else if ( !strcmp( argv[ i ], "-mix" ) )
283 {
284 int length = atoi( argv[ ++ i ] );
285 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
286 mlt_playlist_append( playlist, producer );
287 producer = NULL;
288 if ( mlt_playlist_count( playlist ) >= 2 )
289 {
290 if ( mlt_playlist_mix( playlist, mlt_playlist_count( playlist ) - 2, length, NULL ) == 0 )
291 {
292 mlt_playlist_clip_info info;
293 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 1 );
294 if ( mlt_properties_get_data( ( mlt_properties )info.producer, "mlt_mix", NULL ) == NULL )
295 mlt_playlist_get_clip_info( playlist, &info, mlt_playlist_count( playlist ) - 2 );
296 mix = ( mlt_tractor )mlt_properties_get_data( ( mlt_properties )info.producer, "mlt_mix", NULL );
297 properties = NULL;
298 }
299 else
300 {
301 fprintf( stderr, "Mix failed?\n" );
302 }
303 }
304 else
305 {
306 fprintf( stderr, "Invalid position for a mix...\n" );
307 }
308 }
309 else if ( !strcmp( argv[ i ], "-mixer" ) )
310 {
311 if ( mix != NULL )
312 {
313 char *id = strdup( argv[ ++ i ] );
314 char *arg = strchr( id, ':' );
315 mlt_field field = mlt_tractor_field( mix );
316 mlt_transition transition = NULL;
317 if ( arg != NULL )
318 *arg ++ = '\0';
319 transition = mlt_factory_transition( profile, id, arg );
320 if ( transition != NULL )
321 {
322 properties = MLT_TRANSITION_PROPERTIES( transition );
323 mlt_properties_inherit( properties, group );
324 mlt_field_plant_transition( field, transition, 0, 1 );
325 mlt_properties_set_position( properties, "in", 0 );
326 mlt_properties_set_position( properties, "out", mlt_producer_get_out( ( mlt_producer )mix ) );
327 mlt_transition_close( transition );
328 }
329 free( id );
330 }
331 else
332 {
333 fprintf( stderr, "Invalid mixer...\n" );
334 }
335 }
336 else if ( !strcmp( argv[ i ], "-filter" ) )
337 {
338 mlt_filter filter = create_filter( profile, field, argv[ ++ i ], track );
339 if ( filter != NULL )
340 {
341 properties = MLT_FILTER_PROPERTIES( filter );
342 mlt_properties_inherit( properties, group );
343 }
344 }
345 else if ( !strcmp( argv[ i ], "-transition" ) )
346 {
347 mlt_transition transition = create_transition( profile, field, argv[ ++ i ], track - 1 );
348 if ( transition != NULL )
349 {
350 properties = MLT_TRANSITION_PROPERTIES( transition );
351 mlt_properties_inherit( properties, group );
352 }
353 }
354 else if ( !strcmp( argv[ i ], "-blank" ) )
355 {
356 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
357 mlt_playlist_append( playlist, producer );
358 producer = NULL;
359 mlt_playlist_blank( playlist, atof( argv[ ++ i ] ) );
360 }
361 else if ( !strcmp( argv[ i ], "-track" ) ||
362 !strcmp( argv[ i ], "-null-track" ) ||
363 !strcmp( argv[ i ], "-video-track" ) ||
364 !strcmp( argv[ i ], "-audio-track" ) ||
365 !strcmp( argv[ i ], "-hide-track" ) ||
366 !strcmp( argv[ i ], "-hide-video" ) ||
367 !strcmp( argv[ i ], "-hide-audio" ) )
368 {
369 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
370 mlt_playlist_append( playlist, producer );
371 producer = NULL;
372 if ( !mlt_properties_get_int( MLT_PLAYLIST_PROPERTIES( playlist ), "_inigo_first" ) ||
373 mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( playlist ) ) > 0 )
374 {
375 mlt_multitrack_connect( multitrack, MLT_PLAYLIST_PRODUCER( playlist ), track ++ );
376 track_service( field, playlist, ( mlt_destructor )mlt_playlist_close );
377 playlist = mlt_playlist_init( );
378 }
379 if ( playlist != NULL )
380 {
381 properties = MLT_PLAYLIST_PROPERTIES( playlist );
382 if ( !strcmp( argv[ i ], "-null-track" ) || !strcmp( argv[ i ], "-hide-track" ) )
383 mlt_properties_set_int( properties, "hide", 3 );
384 else if ( !strcmp( argv[ i ], "-audio-track" ) || !strcmp( argv[ i ], "-hide-video" ) )
385 mlt_properties_set_int( properties, "hide", 1 );
386 else if ( !strcmp( argv[ i ], "-video-track" ) || !strcmp( argv[ i ], "-hide-audio" ) )
387 mlt_properties_set_int( properties, "hide", 2 );
388 }
389 }
390 else if ( strchr( argv[ i ], '=' ) && strstr( argv[ i ], "<?xml" ) != argv[ i ] )
391 {
392 mlt_properties_parse( properties, argv[ i ] );
393 }
394 else if ( argv[ i ][ 0 ] != '-' )
395 {
396 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
397 mlt_playlist_append( playlist, producer );
398 if ( title == NULL && strstr( argv[ i ], "<?xml" ) != argv[ i ] )
399 title = argv[ i ];
400 producer = create_producer( profile, field, argv[ i ] );
401 if ( producer != NULL )
402 {
403 properties = MLT_PRODUCER_PROPERTIES( producer );
404 mlt_properties_inherit( properties, group );
405 }
406 else
407 {
408 fprintf( stderr, "Failed to load \"%s\"\n", argv[ i ] );
409 }
410 }
411 else
412 {
413 int backtrack = 0;
414 if ( !strcmp( argv[ i ], "-serialise" ) ||
415 !strcmp( argv[ i ], "-consumer" ) ||
416 !strcmp( argv[ i ], "-profile" ) )
417 {
418 i += 2;
419 backtrack = 1;
420 }
421
422 while ( argv[ i ] != NULL && strchr( argv[ i ], '=' ) )
423 {
424 i ++;
425 backtrack = 1;
426 }
427 if ( backtrack )
428 i --;
429 }
430 }
431
432 // Connect last producer to playlist
433 if ( producer != NULL && !mlt_producer_is_cut( producer ) )
434 mlt_playlist_append( playlist, producer );
435
436 // Track the last playlist too
437 track_service( field, playlist, ( mlt_destructor )mlt_playlist_close );
438
439 // We must have a playlist to connect
440 if ( !mlt_properties_get_int( MLT_PLAYLIST_PROPERTIES( playlist ), "_inigo_first" ) ||
441 mlt_producer_get_playtime( MLT_PLAYLIST_PRODUCER( playlist ) ) > 0 )
442 mlt_multitrack_connect( multitrack, MLT_PLAYLIST_PRODUCER( playlist ), track );
443
444 mlt_producer prod = MLT_TRACTOR_PRODUCER( tractor );
445 mlt_producer_optimise( prod );
446 mlt_properties props = MLT_TRACTOR_PROPERTIES( tractor );
447 mlt_properties_set_data( props, "group", group, 0, ( mlt_destructor )mlt_properties_close, NULL );
448 mlt_properties_set_position( props, "length", mlt_producer_get_out( MLT_MULTITRACK_PRODUCER( multitrack ) ) + 1 );
449 mlt_producer_set_in_and_out( prod, 0, mlt_producer_get_out( MLT_MULTITRACK_PRODUCER( multitrack ) ) );
450 if ( title != NULL )
451 mlt_properties_set( props, "title", strchr( title, '/' ) ? strrchr( title, '/' ) + 1 : title );
452
453 return prod;
454 }
my melted branch