* ALL: fixed memory leaks.
[vlc.git] / src / video_output / video_output.c
1 /*****************************************************************************
2  * video_output.c : video output thread
3  * This module describes the programming interface for video output threads.
4  * It includes functions allowing to open a new thread, send pictures to a
5  * thread, and destroy a previously oppened video output thread.
6  *****************************************************************************
7  * Copyright (C) 2000-2001 VideoLAN
8  * $Id: video_output.c,v 1.241 2003/11/26 08:18:09 gbazin Exp $
9  *
10  * Authors: Vincent Seguin <seguin@via.ecp.fr>
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License as published by
14  * the Free Software Foundation; either version 2 of the License, or
15  * (at your option) any later version.
16  *
17  * This program is distributed in the hope that it will be useful,
18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
20  * GNU General Public License for more details.
21  *
22  * You should have received a copy of the GNU General Public License
23  * along with this program; if not, write to the Free Software
24  * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111, USA.
25  *****************************************************************************/
26
27 /*****************************************************************************
28  * Preamble
29  *****************************************************************************/
30 #include <stdlib.h>                                                /* free() */
31
32 #include <vlc/vlc.h>
33
34 #ifdef HAVE_SYS_TIMES_H
35 #   include <sys/times.h>
36 #endif
37
38 #include "vlc_video.h"
39 #include "video_output.h"
40 #include <vlc/input.h>                 /* for input_thread_t and i_pts_delay */
41
42 #if defined( SYS_DARWIN )
43 #include "darwin_specific.h"
44 #endif
45
46 /*****************************************************************************
47  * Local prototypes
48  *****************************************************************************/
49 static int      InitThread        ( vout_thread_t * );
50 static void     RunThread         ( vout_thread_t * );
51 static void     ErrorThread       ( vout_thread_t * );
52 static void     EndThread         ( vout_thread_t * );
53 static void     DestroyThread     ( vout_thread_t * );
54
55 static int      ReduceHeight      ( int );
56 static int      BinaryLog         ( uint32_t );
57 static void     MaskToShift       ( int *, int *, uint32_t );
58 static void     InitWindowSize    ( vout_thread_t *, int *, int * );
59
60 /* Object variables callbacks */
61 static int FullscreenCallback( vlc_object_t *, char const *,
62                                vlc_value_t, vlc_value_t, void * );
63 static int DeinterlaceCallback( vlc_object_t *, char const *,
64                                 vlc_value_t, vlc_value_t, void * );
65 static int FilterCallback( vlc_object_t *, char const *,
66                            vlc_value_t, vlc_value_t, void * );
67
68 /*****************************************************************************
69  * vout_Request: find a video output thread, create one, or destroy one.
70  *****************************************************************************
71  * This function looks for a video output thread matching the current
72  * properties. If not found, it spawns a new one.
73  *****************************************************************************/
74 vout_thread_t * __vout_Request ( vlc_object_t *p_this, vout_thread_t *p_vout,
75                                  unsigned int i_width, unsigned int i_height,
76                                  vlc_fourcc_t i_chroma, unsigned int i_aspect )
77 {
78     if( !i_width || !i_height || !i_chroma )
79     {
80         /* Reattach video output to input before bailing out */
81         if( p_vout )
82         {
83             vlc_object_t *p_playlist;
84
85             p_playlist = vlc_object_find( p_this,
86                                           VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
87
88             if( p_playlist )
89             {
90                 vlc_object_detach( p_vout );
91                 vlc_object_attach( p_vout, p_playlist );
92
93                 vlc_object_release( p_playlist );
94             }
95             else
96             {
97                 msg_Dbg( p_this, "cannot find playlist destroying vout" );
98                 vlc_object_detach( p_vout );
99                 vout_Destroy( p_vout );
100             }
101         }
102         return NULL;
103     }
104
105     /* If a video output was provided, lock it, otherwise look for one. */
106     if( p_vout )
107     {
108         vlc_object_yield( p_vout );
109     }
110     else
111     {
112         p_vout = vlc_object_find( p_this, VLC_OBJECT_VOUT, FIND_CHILD );
113
114         if( !p_vout )
115         {
116             vlc_object_t *p_playlist;
117
118             p_playlist = vlc_object_find( p_this,
119                                           VLC_OBJECT_PLAYLIST, FIND_ANYWHERE );
120             if( p_playlist )
121             {
122                 p_vout = vlc_object_find( p_playlist,
123                                           VLC_OBJECT_VOUT, FIND_CHILD );
124                 /* only first children of p_input for unused vout */
125                 if( p_vout && p_vout->p_parent != p_playlist )
126                 {
127                     vlc_object_release( p_vout );
128                     p_vout = NULL;
129                 }
130                 vlc_object_release( p_playlist );
131             }
132         }
133     }
134
135     /* If we now have a video output, check it has the right properties */
136     if( p_vout )
137     {
138         char *psz_filter_chain;
139
140         /* We don't directly check for the "filter" variable for obvious
141          * performance reasons. */
142         if( p_vout->b_filter_change )
143         {
144             psz_filter_chain = config_GetPsz( p_this, "filter" );
145
146             if( psz_filter_chain && !*psz_filter_chain )
147             {
148                 free( psz_filter_chain );
149                 psz_filter_chain = NULL;
150             }
151             if( p_vout->psz_filter_chain && !*p_vout->psz_filter_chain )
152             {
153                 free( p_vout->psz_filter_chain );
154                 p_vout->psz_filter_chain = NULL;
155             }
156
157             if( ( !psz_filter_chain && !p_vout->psz_filter_chain ) ||
158                 ( psz_filter_chain && p_vout->psz_filter_chain &&
159                   !strcmp( psz_filter_chain, p_vout->psz_filter_chain ) ) )
160             {
161                 p_vout->b_filter_change = VLC_FALSE;
162             }
163
164             if( psz_filter_chain ) free( psz_filter_chain );
165         }
166
167         if( ( p_vout->render.i_width != i_width ) ||
168             ( p_vout->render.i_height != i_height ) ||
169             ( p_vout->render.i_chroma != i_chroma ) ||
170             ( p_vout->render.i_aspect != i_aspect
171                     && !p_vout->b_override_aspect ) ||
172             p_vout->b_filter_change )
173         {
174             /* We are not interested in this format, close this vout */
175             vlc_object_detach( p_vout );
176             vlc_object_release( p_vout );
177             vout_Destroy( p_vout );
178             p_vout = NULL;
179         }
180         else
181         {
182             /* This video output is cool! Hijack it. */
183             vlc_object_detach( p_vout );
184             vlc_object_attach( p_vout, p_this );
185             vlc_object_release( p_vout );
186         }
187     }
188
189     if( !p_vout )
190     {
191         msg_Dbg( p_this, "no usable vout present, spawning one" );
192
193         p_vout = vout_Create( p_this, i_width, i_height, i_chroma, i_aspect );
194     }
195
196     return p_vout;
197 }
198
199 /*****************************************************************************
200  * vout_Create: creates a new video output thread
201  *****************************************************************************
202  * This function creates a new video output thread, and returns a pointer
203  * to its description. On error, it returns NULL.
204  *****************************************************************************/
205 vout_thread_t * __vout_Create( vlc_object_t *p_parent,
206                                unsigned int i_width, unsigned int i_height,
207                                vlc_fourcc_t i_chroma, unsigned int i_aspect )
208 {
209     vout_thread_t  * p_vout;                            /* thread descriptor */
210     input_thread_t * p_input_thread;
211     int              i_index;                               /* loop variable */
212     char           * psz_plugin;
213     vlc_value_t      val, text;
214
215     /* Allocate descriptor */
216     p_vout = vlc_object_create( p_parent, VLC_OBJECT_VOUT );
217     if( p_vout == NULL )
218     {
219         msg_Err( p_parent, "out of memory" );
220         return NULL;
221     }
222
223     /* Initialize pictures and subpictures - translation tables and functions
224      * will be initialized later in InitThread */
225     for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES; i_index++)
226     {
227         p_vout->p_picture[i_index].pf_lock = NULL;
228         p_vout->p_picture[i_index].pf_unlock = NULL;
229         p_vout->p_picture[i_index].i_status = FREE_PICTURE;
230         p_vout->p_picture[i_index].i_type   = EMPTY_PICTURE;
231     }
232
233     for( i_index = 0; i_index < VOUT_MAX_SUBPICTURES; i_index++)
234     {
235         p_vout->p_subpicture[i_index].i_status = FREE_SUBPICTURE;
236         p_vout->p_subpicture[i_index].i_type   = EMPTY_SUBPICTURE;
237     }
238
239     /* No images in the heap */
240     p_vout->i_heap_size = 0;
241
242     /* Initialize the rendering heap */
243     I_RENDERPICTURES = 0;
244     p_vout->render.i_width    = i_width;
245     p_vout->render.i_height   = i_height;
246     p_vout->render.i_chroma   = i_chroma;
247     p_vout->render.i_aspect   = i_aspect;
248
249     p_vout->render.i_rmask    = 0;
250     p_vout->render.i_gmask    = 0;
251     p_vout->render.i_bmask    = 0;
252
253     p_vout->render.i_last_used_pic = -1;
254     p_vout->render.b_allow_modify_pics = 1;
255
256     /* Zero the output heap */
257     I_OUTPUTPICTURES = 0;
258     p_vout->output.i_width    = 0;
259     p_vout->output.i_height   = 0;
260     p_vout->output.i_chroma   = 0;
261     p_vout->output.i_aspect   = 0;
262
263     p_vout->output.i_rmask    = 0;
264     p_vout->output.i_gmask    = 0;
265     p_vout->output.i_bmask    = 0;
266
267     /* Initialize misc stuff */
268     p_vout->i_changes    = 0;
269     p_vout->f_gamma      = 0;
270     p_vout->b_grayscale  = 0;
271     p_vout->b_info       = 0;
272     p_vout->b_interface  = 0;
273     p_vout->b_scale      = 1;
274     p_vout->b_fullscreen = 0;
275     p_vout->i_alignment  = 0;
276     p_vout->render_time  = 10;
277     p_vout->c_fps_samples = 0;
278     p_vout->b_filter_change = 0;
279
280     /* Mouse coordinates */
281     var_Create( p_vout, "mouse-x", VLC_VAR_INTEGER );
282     var_Create( p_vout, "mouse-y", VLC_VAR_INTEGER );
283     var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
284     var_Create( p_vout, "mouse-moved", VLC_VAR_BOOL );
285     var_Create( p_vout, "mouse-clicked", VLC_VAR_INTEGER );
286
287     var_Create( p_vout, "intf-change", VLC_VAR_BOOL );
288     val.b_bool = VLC_TRUE;
289     var_Set( p_vout, "intf-change", val );
290
291     /* Initialize locks */
292     vlc_mutex_init( p_vout, &p_vout->picture_lock );
293     vlc_mutex_init( p_vout, &p_vout->subpicture_lock );
294     vlc_mutex_init( p_vout, &p_vout->change_lock );
295
296     /* Attach the new object now so we can use var inheritance below */
297     vlc_object_attach( p_vout, p_parent );
298
299     /* Create a few object variables we'll need later on */
300     var_Create( p_vout, "aspect-ratio", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
301     var_Create( p_vout, "width", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
302     var_Create( p_vout, "height", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
303     var_Create( p_vout, "zoom", VLC_VAR_FLOAT | VLC_VAR_DOINHERIT );
304     var_Create( p_vout, "align", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT );
305
306     p_vout->b_override_aspect = VLC_FALSE;
307
308     /* If the parent is not a VOUT object, that means we are at the start of
309      * the video output pipe */
310     if( p_parent->i_object_type != VLC_OBJECT_VOUT )
311     {
312         var_Get( p_vout, "aspect-ratio", &val );
313
314         /* Check whether the user tried to override aspect ratio */
315         if( val.psz_string )
316         {
317             unsigned int i_new_aspect = i_aspect;
318             char *psz_parser = strchr( val.psz_string, ':' );
319
320             if( psz_parser )
321             {
322                 *psz_parser++ = '\0';
323                 i_new_aspect = atoi( val.psz_string ) * VOUT_ASPECT_FACTOR
324                                                       / atoi( psz_parser );
325             }
326             else
327             {
328                 i_new_aspect = i_width * VOUT_ASPECT_FACTOR
329                                        * atof( val.psz_string )
330                                        / i_height;
331             }
332
333             free( val.psz_string );
334
335             if( i_new_aspect && i_new_aspect != i_aspect )
336             {
337                 int i_pgcd = ReduceHeight( i_new_aspect );
338
339                 msg_Dbg( p_vout, "overriding source aspect ratio to %i:%i",
340                          i_new_aspect / i_pgcd, VOUT_ASPECT_FACTOR / i_pgcd );
341
342                 p_vout->render.i_aspect = i_new_aspect;
343
344                 p_vout->b_override_aspect = VLC_TRUE;
345             }
346         }
347
348         /* Look for the default filter configuration */
349         var_Create( p_vout, "filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
350         var_Get( p_vout, "filter", &val );
351         p_vout->psz_filter_chain = val.psz_string;
352     }
353     else
354     {
355         /* continue the parent's filter chain */
356         char *psz_end;
357
358         psz_end = strchr( ((vout_thread_t *)p_parent)->psz_filter_chain, ':' );
359         if( psz_end && *(psz_end+1) )
360             p_vout->psz_filter_chain = strdup( psz_end+1 );
361         else p_vout->psz_filter_chain = NULL;
362     }
363
364     /* Choose the video output module */
365     if( !p_vout->psz_filter_chain || !*p_vout->psz_filter_chain )
366     {
367         var_Create( p_vout, "vout", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
368         var_Get( p_vout, "vout", &val );
369         psz_plugin = val.psz_string;
370     }
371     else
372     {
373         /* the filter chain is a string list of filters separated by double
374          * colons */
375         char *psz_end;
376
377         psz_end = strchr( p_vout->psz_filter_chain, ':' );
378         if( psz_end )
379             psz_plugin = strndup( p_vout->psz_filter_chain,
380                                   psz_end - p_vout->psz_filter_chain );
381         else psz_plugin = strdup( p_vout->psz_filter_chain );
382     }
383
384     /* Initialize the dimensions of the video window */
385     InitWindowSize( p_vout, &p_vout->i_window_width,
386                     &p_vout->i_window_height );
387
388     /* Create the vout thread */
389     p_vout->p_module = module_Need( p_vout,
390                            ( p_vout->psz_filter_chain &&
391                                *p_vout->psz_filter_chain ) ?
392                            "video filter" : "video output",
393                            psz_plugin );
394
395     if( psz_plugin ) free( psz_plugin );
396     if( p_vout->p_module == NULL )
397     {
398         msg_Err( p_vout, "no suitable vout module" );
399         vlc_object_destroy( p_vout );
400         return NULL;
401     }
402
403     p_vout->p_text_renderer_module = module_Need( p_vout, "text renderer",
404                                                   NULL );
405     if( p_vout->p_text_renderer_module == NULL )
406     {
407         msg_Warn( p_vout, "no suitable text renderer module" );
408         p_vout->pf_add_string = NULL;
409     }
410
411     /* Create a few object variables for interface interaction */
412     var_Create( p_vout, "fullscreen", VLC_VAR_BOOL );
413     text.psz_string = _("Fullscreen");
414     var_Change( p_vout, "fullscreen", VLC_VAR_SETTEXT, &text, NULL );
415     var_Change( p_vout, "fullscreen", VLC_VAR_INHERITVALUE, &val, NULL );
416     if( val.b_bool )
417     {
418         /* user requested fullscreen */
419         p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
420     }
421     var_AddCallback( p_vout, "fullscreen", FullscreenCallback, NULL );
422
423     var_Create( p_vout, "deinterlace", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
424     text.psz_string = _("Deinterlace");
425     var_Change( p_vout, "deinterlace", VLC_VAR_SETTEXT, &text, NULL );
426     val.psz_string = ""; text.psz_string = _("Disable");
427     var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
428     val.psz_string = "discard"; text.psz_string = _("Discard");
429     var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
430     val.psz_string = "blend"; text.psz_string = _("Blend");
431     var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
432     val.psz_string = "mean"; text.psz_string = _("Mean");
433     var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
434     val.psz_string = "bob"; text.psz_string = _("Bob");
435     var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
436     val.psz_string = "linear"; text.psz_string = _("Linear");
437     var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
438     if( var_Get( p_vout, "deinterlace-mode", &val ) == VLC_SUCCESS )
439     {
440         var_Set( p_vout, "deinterlace", val );
441         if( val.psz_string ) free( val.psz_string );
442     }
443     var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );
444
445
446     var_Create( p_vout, "filter", VLC_VAR_STRING );
447     text.psz_string = _("Filters");
448     var_Change( p_vout, "filter", VLC_VAR_SETTEXT, &text, NULL );
449     var_Change( p_vout, "filter", VLC_VAR_INHERITVALUE, &val, NULL );
450     if( val.psz_string )
451     {
452         var_Set( p_vout, "filter", val );
453         free( val.psz_string );
454     }
455     var_AddCallback( p_vout, "filter", FilterCallback, NULL );
456
457     /* Calculate delay created by internal caching */
458     p_input_thread = (input_thread_t *)vlc_object_find( p_vout,
459                                            VLC_OBJECT_INPUT, FIND_ANYWHERE );
460     if( p_input_thread )
461     {
462         p_vout->i_pts_delay = p_input_thread->i_pts_delay;
463         vlc_object_release( p_input_thread );
464     }
465     else
466     {
467         p_vout->i_pts_delay = DEFAULT_PTS_DELAY;
468     }
469
470     if( vlc_thread_create( p_vout, "video output", RunThread,
471                            VLC_THREAD_PRIORITY_OUTPUT, VLC_TRUE ) )
472     {
473         msg_Err( p_vout, "out of memory" );
474         module_Unneed( p_vout, p_vout->p_module );
475         vlc_object_destroy( p_vout );
476         return NULL;
477     }
478
479     return p_vout;
480 }
481
482 /*****************************************************************************
483  * vout_Destroy: destroys a previously created video output
484  *****************************************************************************
485  * Destroy a terminated thread.
486  * The function will request a destruction of the specified thread. If pi_error
487  * is NULL, it will return once the thread is destroyed. Else, it will be
488  * update using one of the THREAD_* constants.
489  *****************************************************************************/
490 void vout_Destroy( vout_thread_t *p_vout )
491
492     vlc_object_t *p_playlist;
493     
494     /* Request thread destruction */
495     p_vout->b_die = VLC_TRUE;
496     vlc_thread_join( p_vout );
497
498     var_Destroy( p_vout, "intf-change" );
499
500     p_playlist = vlc_object_find( p_vout, VLC_OBJECT_PLAYLIST, 
501                                   FIND_ANYWHERE );
502
503     if( p_vout->psz_filter_chain ) free( p_vout->psz_filter_chain );
504
505     /* Free structure */
506     vlc_object_destroy( p_vout );
507
508     /* If it was the last vout, tell the interface to show up */
509     if( p_playlist != NULL )
510     {
511         vout_thread_t *p_another_vout = vlc_object_find( p_playlist, 
512                                             VLC_OBJECT_VOUT, FIND_ANYWHERE );
513         if( p_another_vout == NULL )
514         {
515             vlc_value_t val;
516             val.b_bool = VLC_TRUE;
517             var_Set( p_playlist, "intf-show", val );
518         }
519         else
520         {
521             vlc_object_release( p_another_vout );
522         }
523         vlc_object_release( p_playlist );
524     }
525 }
526
527 /*****************************************************************************
528  * InitThread: initialize video output thread
529  *****************************************************************************
530  * This function is called from RunThread and performs the second step of the
531  * initialization. It returns 0 on success. Note that the thread's flag are not
532  * modified inside this function.
533  *****************************************************************************/
534 static int InitThread( vout_thread_t *p_vout )
535 {
536     int i, i_pgcd;
537
538     vlc_mutex_lock( &p_vout->change_lock );
539
540 #ifdef STATS
541     p_vout->c_loops = 0;
542 #endif
543
544     /* Initialize output method, it allocates direct buffers for us */
545     if( p_vout->pf_init( p_vout ) )
546     {
547         vlc_mutex_unlock( &p_vout->change_lock );
548         return VLC_EGENERIC;
549     }
550
551     if( !I_OUTPUTPICTURES )
552     {
553         msg_Err( p_vout, "plugin was unable to allocate at least "
554                          "one direct buffer" );
555         p_vout->pf_end( p_vout );
556         vlc_mutex_unlock( &p_vout->change_lock );
557         return VLC_EGENERIC;
558     }
559
560     if( I_OUTPUTPICTURES > VOUT_MAX_PICTURES )
561     {
562         msg_Err( p_vout, "plugin allocated too many direct buffers, "
563                          "our internal buffers must have overflown." );
564         p_vout->pf_end( p_vout );
565         vlc_mutex_unlock( &p_vout->change_lock );
566         return VLC_EGENERIC;
567     }
568
569     msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
570
571 #if 0
572     if( !p_vout->psz_filter_chain )
573     {
574         char *psz_aspect = config_GetPsz( p_vout, "pixel-ratio" );
575
576         if( psz_aspect )
577         {
578             int i_new_aspect = p_vout->output.i_width * VOUT_ASPECT_FACTOR
579                                                       * atof( psz_aspect )
580                                                       / p_vout->output.i_height;
581             free( psz_aspect );
582
583             if( i_new_aspect && i_new_aspect != p_vout->output.i_aspect )
584             {
585                 int i_pgcd = ReduceHeight( i_new_aspect );
586                 msg_Dbg( p_vout, "output ratio forced to %i:%i\n",
587                          i_new_aspect / i_pgcd, VOUT_ASPECT_FACTOR / i_pgcd );
588                 p_vout->output.i_aspect = i_new_aspect;
589             }
590         }
591     }
592 #endif
593
594     i_pgcd = ReduceHeight( p_vout->render.i_aspect );
595     msg_Dbg( p_vout,
596              "picture in %ix%i, chroma 0x%.8x (%4.4s), aspect ratio %i:%i",
597              p_vout->render.i_width, p_vout->render.i_height,
598              p_vout->render.i_chroma, (char*)&p_vout->render.i_chroma,
599              p_vout->render.i_aspect / i_pgcd, VOUT_ASPECT_FACTOR / i_pgcd );
600
601     i_pgcd = ReduceHeight( p_vout->output.i_aspect );
602     msg_Dbg( p_vout,
603              "picture out %ix%i, chroma 0x%.8x (%4.4s), aspect ratio %i:%i",
604              p_vout->output.i_width, p_vout->output.i_height,
605              p_vout->output.i_chroma, (char*)&p_vout->output.i_chroma,
606              p_vout->output.i_aspect / i_pgcd, VOUT_ASPECT_FACTOR / i_pgcd );
607
608     /* Calculate shifts from system-updated masks */
609     MaskToShift( &p_vout->output.i_lrshift, &p_vout->output.i_rrshift,
610                  p_vout->output.i_rmask );
611     MaskToShift( &p_vout->output.i_lgshift, &p_vout->output.i_rgshift,
612                  p_vout->output.i_gmask );
613     MaskToShift( &p_vout->output.i_lbshift, &p_vout->output.i_rbshift,
614                  p_vout->output.i_bmask );
615
616     /* Check whether we managed to create direct buffers similar to
617      * the render buffers, ie same size and chroma */
618     if( ( p_vout->output.i_width == p_vout->render.i_width )
619      && ( p_vout->output.i_height == p_vout->render.i_height )
620      && ( vout_ChromaCmp( p_vout->output.i_chroma, p_vout->render.i_chroma ) ) )
621     {
622         /* Cool ! We have direct buffers, we can ask the decoder to
623          * directly decode into them ! Map the first render buffers to
624          * the first direct buffers, but keep the first direct buffer
625          * for memcpy operations */
626         p_vout->b_direct = 1;
627
628         for( i = 1; i < VOUT_MAX_PICTURES; i++ )
629         {
630             if( p_vout->p_picture[ i ].i_type != DIRECT_PICTURE &&
631                 I_RENDERPICTURES >= VOUT_MIN_DIRECT_PICTURES - 1 &&
632                 p_vout->p_picture[ i - 1 ].i_type == DIRECT_PICTURE )
633             {
634                 /* We have enough direct buffers so there's no need to
635                  * try to use system memory buffers. */
636                 break;
637             }
638             PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
639             I_RENDERPICTURES++;
640         }
641
642         msg_Dbg( p_vout, "direct render, mapping "
643                  "render pictures 0-%i to system pictures 1-%i",
644                  VOUT_MAX_PICTURES - 2, VOUT_MAX_PICTURES - 1 );
645     }
646     else
647     {
648         /* Rats... Something is wrong here, we could not find an output
649          * plugin able to directly render what we decode. See if we can
650          * find a chroma plugin to do the conversion */
651         p_vout->b_direct = 0;
652
653         /* Choose the best module */
654         p_vout->chroma.p_module = module_Need( p_vout, "chroma", NULL );
655
656         if( p_vout->chroma.p_module == NULL )
657         {
658             msg_Err( p_vout, "no chroma module for %4.4s to %4.4s",
659                      (char*)&p_vout->render.i_chroma,
660                      (char*)&p_vout->output.i_chroma );
661             p_vout->pf_end( p_vout );
662             vlc_mutex_unlock( &p_vout->change_lock );
663             return VLC_EGENERIC;
664         }
665
666         msg_Dbg( p_vout, "indirect render, mapping "
667                  "render pictures 0-%i to system pictures %i-%i",
668                  VOUT_MAX_PICTURES - 1, I_OUTPUTPICTURES,
669                  I_OUTPUTPICTURES + VOUT_MAX_PICTURES - 1 );
670
671         /* Append render buffers after the direct buffers */
672         for( i = I_OUTPUTPICTURES; i < 2 * VOUT_MAX_PICTURES; i++ )
673         {
674             PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
675             I_RENDERPICTURES++;
676
677             /* Check if we have enough render pictures */
678             if( I_RENDERPICTURES == VOUT_MAX_PICTURES )
679                 break;
680         }
681     }
682
683     /* Link pictures back to their heap */
684     for( i = 0 ; i < I_RENDERPICTURES ; i++ )
685     {
686         PP_RENDERPICTURE[ i ]->p_heap = &p_vout->render;
687     }
688
689     for( i = 0 ; i < I_OUTPUTPICTURES ; i++ )
690     {
691         PP_OUTPUTPICTURE[ i ]->p_heap = &p_vout->output;
692     }
693
694 /* XXX XXX mark thread ready */
695     return VLC_SUCCESS;
696 }
697
698 /*****************************************************************************
699  * RunThread: video output thread
700  *****************************************************************************
701  * Video output thread. This function does only returns when the thread is
702  * terminated. It handles the pictures arriving in the video heap and the
703  * display device events.
704  *****************************************************************************/
705 static void RunThread( vout_thread_t *p_vout)
706 {
707     int             i_index;                                /* index in heap */
708     int             i_idle_loops = 0;  /* loops without displaying a picture */
709     mtime_t         current_date;                            /* current date */
710     mtime_t         display_date;                            /* display date */
711
712     picture_t *     p_picture;                            /* picture pointer */
713     picture_t *     p_last_picture = NULL;                   /* last picture */
714     picture_t *     p_directbuffer;              /* direct buffer to display */
715
716     subpicture_t *  p_subpic;                          /* subpicture pointer */
717
718     /*
719      * Initialize thread
720      */
721     p_vout->b_error = InitThread( p_vout );
722
723     /* signal the creation of the vout */
724     vlc_thread_ready( p_vout );
725
726     if( p_vout->b_error )
727     {
728         /* Destroy thread structures allocated by Create and InitThread */
729         DestroyThread( p_vout );
730         return;
731     }
732
733     /*
734      * Main loop - it is not executed if an error occured during
735      * initialization
736      */
737     while( (!p_vout->b_die) && (!p_vout->b_error) )
738     {
739         /* Initialize loop variables */
740         p_picture = NULL;
741         display_date = 0;
742         current_date = mdate();
743
744 #if 0
745         p_vout->c_loops++;
746         if( !(p_vout->c_loops % VOUT_STATS_NB_LOOPS) )
747         {
748             msg_Dbg( p_vout, "picture heap: %d/%d",
749                      I_RENDERPICTURES, p_vout->i_heap_size );
750         }
751 #endif
752
753         /*
754          * Find the picture to display (the one with the earliest date).
755          * This operation does not need lock, since only READY_PICTUREs
756          * are handled. */
757         for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
758         {
759             if( (PP_RENDERPICTURE[i_index]->i_status == READY_PICTURE)
760                 && ( (p_picture == NULL) ||
761                      (PP_RENDERPICTURE[i_index]->date < display_date) ) )
762             {
763                 p_picture = PP_RENDERPICTURE[i_index];
764                 display_date = p_picture->date;
765             }
766         }
767
768         if( p_picture )
769         {
770             /* If we met the last picture, parse again to see whether there is
771              * a more appropriate one. */
772             if( p_picture == p_last_picture )
773             {
774                 for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
775                 {
776                     if( (PP_RENDERPICTURE[i_index]->i_status == READY_PICTURE)
777                         && (PP_RENDERPICTURE[i_index] != p_last_picture)
778                         && ((p_picture == p_last_picture) ||
779                             (PP_RENDERPICTURE[i_index]->date < display_date)) )
780                     {
781                         p_picture = PP_RENDERPICTURE[i_index];
782                         display_date = p_picture->date;
783                     }
784                 }
785             }
786
787             /* If we found better than the last picture, destroy it */
788             if( p_last_picture && p_picture != p_last_picture )
789             {
790                 vlc_mutex_lock( &p_vout->picture_lock );
791                 if( p_last_picture->i_refcount )
792                 {
793                     p_last_picture->i_status = DISPLAYED_PICTURE;
794                 }
795                 else
796                 {
797                     p_last_picture->i_status = DESTROYED_PICTURE;
798                     p_vout->i_heap_size--;
799                 }
800                 vlc_mutex_unlock( &p_vout->picture_lock );
801                 p_last_picture = NULL;
802             }
803
804             /* Compute FPS rate */
805             p_vout->p_fps_sample[ p_vout->c_fps_samples++ % VOUT_FPS_SAMPLES ]
806                 = display_date;
807
808             if( !p_picture->b_force &&
809                 p_picture != p_last_picture &&
810                 display_date < current_date + p_vout->render_time )
811             {
812                 /* Picture is late: it will be destroyed and the thread
813                  * will directly choose the next picture */
814                 vlc_mutex_lock( &p_vout->picture_lock );
815                 if( p_picture->i_refcount )
816                 {
817                     /* Pretend we displayed the picture, but don't destroy
818                      * it since the decoder might still need it. */
819                     p_picture->i_status = DISPLAYED_PICTURE;
820                 }
821                 else
822                 {
823                     /* Destroy the picture without displaying it */
824                     p_picture->i_status = DESTROYED_PICTURE;
825                     p_vout->i_heap_size--;
826                 }
827                 msg_Warn( p_vout, "late picture skipped ("I64Fd")",
828                                   current_date - display_date );
829                 vlc_mutex_unlock( &p_vout->picture_lock );
830
831                 continue;
832             }
833
834             if( display_date >
835                 current_date + p_vout->i_pts_delay + VOUT_BOGUS_DELAY )
836             {
837                 /* Picture is waaay too early: it will be destroyed */
838                 vlc_mutex_lock( &p_vout->picture_lock );
839                 if( p_picture->i_refcount )
840                 {
841                     /* Pretend we displayed the picture, but don't destroy
842                      * it since the decoder might still need it. */
843                     p_picture->i_status = DISPLAYED_PICTURE;
844                 }
845                 else
846                 {
847                     /* Destroy the picture without displaying it */
848                     p_picture->i_status = DESTROYED_PICTURE;
849                     p_vout->i_heap_size--;
850                 }
851                 msg_Warn( p_vout, "vout warning: early picture skipped "
852                           "("I64Fd")", display_date - current_date
853                           - p_vout->i_pts_delay );
854                 vlc_mutex_unlock( &p_vout->picture_lock );
855
856                 continue;
857             }
858
859             if( display_date > current_date + VOUT_DISPLAY_DELAY )
860             {
861                 /* A picture is ready to be rendered, but its rendering date
862                  * is far from the current one so the thread will perform an
863                  * empty loop as if no picture were found. The picture state
864                  * is unchanged */
865                 p_picture    = NULL;
866                 display_date = 0;
867             }
868             else if( p_picture == p_last_picture )
869             {
870                 /* We are asked to repeat the previous picture, but we first
871                  * wait for a couple of idle loops */
872                 if( i_idle_loops < 4 )
873                 {
874                     p_picture    = NULL;
875                     display_date = 0;
876                 }
877                 else
878                 {
879                     /* We set the display date to something high, otherwise
880                      * we'll have lots of problems with late pictures */
881                     display_date = current_date + p_vout->render_time;
882                 }
883             }
884         }
885
886         if( p_picture == NULL )
887         {
888             i_idle_loops++;
889         }
890
891         /*
892          * Check for subpictures to display
893          */
894         p_subpic = vout_SortSubPictures( p_vout, display_date );
895
896         /*
897          * Perform rendering
898          */
899         p_directbuffer = vout_RenderPicture( p_vout, p_picture, p_subpic );
900
901         /*
902          * Call the plugin-specific rendering method if there is one
903          */
904         if( p_picture != NULL && p_directbuffer != NULL && p_vout->pf_render )
905         {
906             /* Render the direct buffer returned by vout_RenderPicture */
907             p_vout->pf_render( p_vout, p_directbuffer );
908         }
909
910         /*
911          * Sleep, wake up
912          */
913         if( display_date != 0 && p_directbuffer != NULL )
914         {
915             mtime_t current_render_time = mdate() - current_date;
916             /* if render time is very large we don't include it in the mean */
917             if( current_render_time < p_vout->render_time +
918                 VOUT_DISPLAY_DELAY )
919             {
920                 /* Store render time using a sliding mean weighting to
921                  * current value in a 3 to 1 ratio*/
922                 p_vout->render_time *= 3;
923                 p_vout->render_time += current_render_time;
924                 p_vout->render_time >>= 2;
925             }
926         }
927
928         /* Give back change lock */
929         vlc_mutex_unlock( &p_vout->change_lock );
930
931         /* Sleep a while or until a given date */
932         if( display_date != 0 )
933         {
934             /* If there are filters in the chain, better give them the picture
935              * in advance */
936             if( !p_vout->psz_filter_chain || !*p_vout->psz_filter_chain )
937             {
938                 mwait( display_date - VOUT_MWAIT_TOLERANCE );
939             }
940         }
941         else
942         {
943             msleep( VOUT_IDLE_SLEEP );
944         }
945
946         /* On awakening, take back lock and send immediately picture
947          * to display. */
948         vlc_mutex_lock( &p_vout->change_lock );
949
950         /*
951          * Display the previously rendered picture
952          */
953         if( p_picture != NULL && p_directbuffer != NULL )
954         {
955             /* Display the direct buffer returned by vout_RenderPicture */
956             if( p_vout->pf_display )
957             {
958                 p_vout->pf_display( p_vout, p_directbuffer );
959             }
960
961             /* Reinitialize idle loop count */
962             i_idle_loops = 0;
963
964             /* Tell the vout this was the last picture and that it does not
965              * need to be forced anymore. */
966             p_last_picture = p_picture;
967             p_last_picture->b_force = 0;
968         }
969
970         /*
971          * Check events and manage thread
972          */
973         if( p_vout->pf_manage && p_vout->pf_manage( p_vout ) )
974         {
975             /* A fatal error occured, and the thread must terminate
976              * immediately, without displaying anything - setting b_error to 1
977              * causes the immediate end of the main while() loop. */
978             p_vout->b_error = 1;
979         }
980
981         if( p_vout->i_changes & VOUT_SIZE_CHANGE )
982         {
983             /* this must only happen when the vout plugin is incapable of
984              * rescaling the picture itself. In this case we need to destroy
985              * the current picture buffers and recreate new ones with the right
986              * dimensions */
987             int i;
988
989             p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
990
991             p_vout->pf_end( p_vout );
992             for( i = 0; i < I_OUTPUTPICTURES; i++ )
993                  p_vout->p_picture[ i ].i_status = FREE_PICTURE;
994
995             I_OUTPUTPICTURES = 0;
996             if( p_vout->pf_init( p_vout ) )
997             {
998                 msg_Err( p_vout, "cannot resize display" );
999                 /* FIXME: pf_end will be called again in EndThread() */
1000                 p_vout->b_error = 1;
1001             }
1002
1003             /* Need to reinitialise the chroma plugin */
1004             if( p_vout->chroma.p_module )
1005             {
1006                 if( p_vout->chroma.p_module->pf_deactivate )
1007                     p_vout->chroma.p_module->pf_deactivate( VLC_OBJECT(p_vout) );
1008                 p_vout->chroma.p_module->pf_activate( VLC_OBJECT(p_vout) );
1009             }
1010         }
1011     }
1012
1013     /*
1014      * Error loop - wait until the thread destruction is requested
1015      */
1016     if( p_vout->b_error )
1017     {
1018         ErrorThread( p_vout );
1019     }
1020
1021     /* End of thread */
1022     EndThread( p_vout );
1023
1024     /* Destroy thread structures allocated by CreateThread */
1025     DestroyThread( p_vout );
1026 }
1027
1028 /*****************************************************************************
1029  * ErrorThread: RunThread() error loop
1030  *****************************************************************************
1031  * This function is called when an error occured during thread main's loop. The
1032  * thread can still receive feed, but must be ready to terminate as soon as
1033  * possible.
1034  *****************************************************************************/
1035 static void ErrorThread( vout_thread_t *p_vout )
1036 {
1037     /* Wait until a `die' order */
1038     while( !p_vout->b_die )
1039     {
1040         /* Sleep a while */
1041         msleep( VOUT_IDLE_SLEEP );
1042     }
1043 }
1044
1045 /*****************************************************************************
1046  * EndThread: thread destruction
1047  *****************************************************************************
1048  * This function is called when the thread ends after a sucessful
1049  * initialization. It frees all ressources allocated by InitThread.
1050  *****************************************************************************/
1051 static void EndThread( vout_thread_t *p_vout )
1052 {
1053     int     i_index;                                        /* index in heap */
1054
1055 #ifdef STATS
1056     {
1057         struct tms cpu_usage;
1058         times( &cpu_usage );
1059
1060         msg_Dbg( p_vout, "cpu usage (user: %d, system: %d)",
1061                  cpu_usage.tms_utime, cpu_usage.tms_stime );
1062     }
1063 #endif
1064
1065     if( !p_vout->b_direct )
1066     {
1067         module_Unneed( p_vout, p_vout->chroma.p_module );
1068     }
1069     
1070     /* Destroy all remaining pictures */
1071     for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES; i_index++ )
1072     {
1073         if ( p_vout->p_picture[i_index].i_type == MEMORY_PICTURE )
1074         {
1075             free( p_vout->p_picture[i_index].p_data_orig );
1076         }
1077     }
1078
1079     /* Destroy all remaining subpictures */
1080     for( i_index = 0; i_index < VOUT_MAX_SUBPICTURES; i_index++ )
1081     {
1082         if( p_vout->p_subpicture[i_index].i_status != FREE_SUBPICTURE )
1083         {
1084             vout_DestroySubPicture( p_vout,
1085                                     &p_vout->p_subpicture[i_index] );
1086         }
1087     }
1088
1089     if( p_vout->p_text_renderer_module )
1090         module_Unneed( p_vout, p_vout->p_text_renderer_module );
1091     
1092     /* Destroy translation tables */
1093     p_vout->pf_end( p_vout );
1094
1095     /* Release the change lock */
1096     vlc_mutex_unlock( &p_vout->change_lock );
1097 }
1098
1099 /*****************************************************************************
1100  * DestroyThread: thread destruction
1101  *****************************************************************************
1102  * This function is called when the thread ends. It frees all ressources
1103  * allocated by CreateThread. Status is available at this stage.
1104  *****************************************************************************/
1105 static void DestroyThread( vout_thread_t *p_vout )
1106 {
1107     /* Destroy the locks */
1108     vlc_mutex_destroy( &p_vout->picture_lock );
1109     vlc_mutex_destroy( &p_vout->subpicture_lock );
1110     vlc_mutex_destroy( &p_vout->change_lock );
1111
1112     /* Release the module */
1113     module_Unneed( p_vout, p_vout->p_module );
1114 }
1115
1116 /* following functions are local */
1117
1118 static int ReduceHeight( int i_ratio )
1119 {
1120     int i_dummy = VOUT_ASPECT_FACTOR;
1121     int i_pgcd  = 1;
1122  
1123     if( !i_ratio )
1124     {
1125         return i_pgcd;
1126     }
1127
1128     /* VOUT_ASPECT_FACTOR is (2^7 * 3^3 * 5^3), we just check for 2, 3 and 5 */
1129     while( !(i_ratio & 1) && !(i_dummy & 1) )
1130     {
1131         i_ratio >>= 1;
1132         i_dummy >>= 1;
1133         i_pgcd  <<= 1;
1134     }
1135
1136     while( !(i_ratio % 3) && !(i_dummy % 3) )
1137     {
1138         i_ratio /= 3;
1139         i_dummy /= 3;
1140         i_pgcd  *= 3;
1141     }
1142
1143     while( !(i_ratio % 5) && !(i_dummy % 5) )
1144     {
1145         i_ratio /= 5;
1146         i_dummy /= 5;
1147         i_pgcd  *= 5;
1148     }
1149
1150     return i_pgcd;
1151 }
1152
1153 /*****************************************************************************
1154  * BinaryLog: computes the base 2 log of a binary value
1155  *****************************************************************************
1156  * This functions is used by MaskToShift, to get a bit index from a binary
1157  * value.
1158  *****************************************************************************/
1159 static int BinaryLog( uint32_t i )
1160 {
1161     int i_log = 0;
1162
1163     if( i == 0 ) return -31337;
1164
1165     if( i & 0xffff0000 ) i_log += 16;
1166     if( i & 0xff00ff00 ) i_log += 8;
1167     if( i & 0xf0f0f0f0 ) i_log += 4;
1168     if( i & 0xcccccccc ) i_log += 2;
1169     if( i & 0xaaaaaaaa ) i_log += 1;
1170
1171     return i_log;
1172 }
1173
1174 /*****************************************************************************
1175  * MaskToShift: transform a color mask into right and left shifts
1176  *****************************************************************************
1177  * This function is used for obtaining color shifts from masks.
1178  *****************************************************************************/
1179 static void MaskToShift( int *pi_left, int *pi_right, uint32_t i_mask )
1180 {
1181     uint32_t i_low, i_high;            /* lower hand higher bits of the mask */
1182
1183     if( !i_mask )
1184     {
1185         *pi_left = *pi_right = 0;
1186         return;
1187     }
1188
1189     /* Get bits */
1190     i_low =  i_mask & (- (int32_t)i_mask);          /* lower bit of the mask */
1191     i_high = i_mask + i_low;                       /* higher bit of the mask */
1192
1193     /* Transform bits into an index */
1194     i_low =  BinaryLog (i_low);
1195     i_high = BinaryLog (i_high);
1196
1197     /* Update pointers and return */
1198     *pi_left =   i_low;
1199     *pi_right = (8 - i_high + i_low);
1200 }
1201
1202 /*****************************************************************************
1203  * InitWindowSize: find the initial dimensions the video window should have.
1204  *****************************************************************************
1205  * This function will check the "width", "height" and "zoom" config options and
1206  * will calculate the size that the video window should have.
1207  *****************************************************************************/
1208 static void InitWindowSize( vout_thread_t *p_vout, int *pi_width,
1209                             int *pi_height )
1210 {
1211     vlc_value_t val;
1212     int i_width, i_height;
1213     uint64_t ll_zoom;
1214
1215 #define FP_FACTOR 1000                             /* our fixed point factor */
1216
1217     var_Get( p_vout, "align", &val );
1218     p_vout->i_alignment = val.i_int;
1219
1220     var_Get( p_vout, "width", &val );
1221     i_width = val.i_int;
1222     var_Get( p_vout, "height", &val );
1223     i_height = val.i_int;
1224     var_Get( p_vout, "zoom", &val );
1225     ll_zoom = (uint64_t)( FP_FACTOR * val.f_float );
1226
1227     if( i_width > 0 && i_height > 0)
1228     {
1229         *pi_width = (int)( i_width * ll_zoom / FP_FACTOR );
1230         *pi_height = (int)( i_height * ll_zoom / FP_FACTOR );
1231         return;
1232     }
1233     else if( i_width > 0 )
1234     {
1235         *pi_width = (int)( i_width * ll_zoom / FP_FACTOR );
1236         *pi_height = (int)( i_width * ll_zoom * VOUT_ASPECT_FACTOR /
1237                             p_vout->render.i_aspect / FP_FACTOR );
1238         return;
1239     }
1240     else if( i_height > 0 )
1241     {
1242         *pi_height = (int)( i_height * ll_zoom / FP_FACTOR );
1243         *pi_width = (int)( i_height * ll_zoom * p_vout->render.i_aspect /
1244                            VOUT_ASPECT_FACTOR / FP_FACTOR );
1245         return;
1246     }
1247
1248     if( p_vout->render.i_height * p_vout->render.i_aspect
1249         >= p_vout->render.i_width * VOUT_ASPECT_FACTOR )
1250     {
1251         *pi_width = (int)( p_vout->render.i_height * ll_zoom
1252           * p_vout->render.i_aspect / VOUT_ASPECT_FACTOR / FP_FACTOR );
1253         *pi_height = (int)( p_vout->render.i_height * ll_zoom / FP_FACTOR );
1254     }
1255     else
1256     {
1257         *pi_width = (int)( p_vout->render.i_width * ll_zoom / FP_FACTOR );
1258         *pi_height = (int)( p_vout->render.i_width * ll_zoom
1259           * VOUT_ASPECT_FACTOR / p_vout->render.i_aspect / FP_FACTOR );
1260     }
1261
1262 #undef FP_FACTOR
1263 }
1264
1265 /*****************************************************************************
1266  * vout_VarCallback: generic callback for intf variables
1267  *****************************************************************************/
1268 int vout_VarCallback( vlc_object_t * p_this, const char * psz_variable,
1269                       vlc_value_t old_value, vlc_value_t new_value,
1270                       void * unused )
1271 {
1272     vout_thread_t * p_vout = (vout_thread_t *)p_this;
1273     vlc_value_t val;
1274     val.b_bool = VLC_TRUE;
1275     var_Set( p_vout, "intf-change", val );
1276     return VLC_SUCCESS;
1277 }
1278
1279 /*****************************************************************************
1280  * object variables callbacks: a bunch of object variables are used by the
1281  * interfaces to interact with the vout.
1282  *****************************************************************************/
1283 static int FullscreenCallback( vlc_object_t *p_this, char const *psz_cmd,
1284                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1285 {
1286     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1287     input_thread_t *p_input;
1288     vlc_value_t val;
1289
1290     p_vout->i_changes |= VOUT_FULLSCREEN_CHANGE;
1291
1292     p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
1293                                                  FIND_PARENT );
1294     if( p_input )
1295     {
1296         /* Modify input as well because the vout might have to be restarted */
1297         var_Create( p_input, "fullscreen", VLC_VAR_BOOL );
1298         var_Set( p_input, "fullscreen", newval );
1299
1300         vlc_object_release( p_input );
1301     }
1302
1303     val.b_bool = VLC_TRUE;
1304     var_Set( p_vout, "intf-change", val );
1305     return VLC_SUCCESS;
1306 }
1307
1308 static int DeinterlaceCallback( vlc_object_t *p_this, char const *psz_cmd,
1309                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1310 {
1311     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1312     input_thread_t *p_input;
1313     vlc_value_t val;
1314
1315     char *psz_mode = newval.psz_string;
1316     char *psz_filter;
1317     unsigned int  i;
1318
1319     psz_filter = config_GetPsz( p_vout, "filter" );
1320
1321     if( !psz_mode || !*psz_mode )
1322     {
1323         config_PutPsz( p_vout, "filter", "" );
1324     }
1325     else
1326     {
1327         if( !psz_filter || !*psz_filter )
1328         {
1329             config_PutPsz( p_vout, "filter", "deinterlace" );
1330         }
1331         else
1332         {
1333             if( strstr( psz_filter, "deinterlace" ) == NULL )
1334             {
1335                 psz_filter = realloc( psz_filter, strlen( psz_filter ) + 20 );
1336                 strcat( psz_filter, ",deinterlace" );
1337             }
1338             config_PutPsz( p_vout, "filter", psz_filter );
1339         }
1340     }
1341
1342     if( psz_filter ) free( psz_filter );
1343
1344
1345     p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
1346                                                  FIND_PARENT );
1347     if( !p_input ) return VLC_EGENERIC;
1348
1349     if( psz_mode && *psz_mode )
1350     {
1351         val.psz_string = psz_mode;
1352         var_Set( p_vout, "deinterlace-mode", val );
1353         /* Modify input as well because the vout might have to be restarted */
1354         var_Create( p_input, "deinterlace-mode", VLC_VAR_STRING );
1355         var_Set( p_input, "deinterlace-mode", val );
1356     }
1357
1358     /* now restart all video streams */
1359     vlc_mutex_lock( &p_input->stream.stream_lock );
1360
1361     p_vout->b_filter_change = VLC_TRUE;
1362
1363 #define ES p_input->stream.pp_es[i]
1364
1365     for( i = 0 ; i < p_input->stream.i_es_number ; i++ )
1366     {
1367         if( ( ES->i_cat == VIDEO_ES ) && ES->p_dec != NULL )
1368         {
1369             input_UnselectES( p_input, ES );
1370             input_SelectES( p_input, ES );
1371         }
1372 #undef ES
1373     }
1374     vlc_mutex_unlock( &p_input->stream.stream_lock );
1375
1376     vlc_object_release( p_input );
1377
1378     val.b_bool = VLC_TRUE;
1379     var_Set( p_vout, "intf-change", val );
1380     return VLC_SUCCESS;
1381 }
1382
1383 static int FilterCallback( vlc_object_t *p_this, char const *psz_cmd,
1384                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1385 {
1386     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1387     input_thread_t *p_input;
1388     vlc_value_t val;
1389     unsigned int i;
1390
1391     p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
1392                                                  FIND_PARENT );
1393
1394     if (!p_input)
1395     {
1396         msg_Err( p_vout, "Input not found" );
1397         return( VLC_EGENERIC );
1398     }
1399     /* Restart the video stream */
1400     vlc_mutex_lock( &p_input->stream.stream_lock );
1401
1402     p_vout->b_filter_change = VLC_TRUE;
1403
1404 #define ES p_input->stream.pp_es[i]
1405
1406     for( i = 0 ; i < p_input->stream.i_es_number ; i++ )
1407     {
1408         if( ( ES->i_cat == VIDEO_ES ) && ES->p_dec != NULL )
1409         {
1410             input_UnselectES( p_input, ES );
1411             input_SelectES( p_input, ES );
1412         }
1413 #undef ES
1414     }
1415     vlc_mutex_unlock( &p_input->stream.stream_lock );
1416
1417     vlc_object_release( p_input );
1418
1419     val.b_bool = VLC_TRUE;
1420     var_Set( p_vout, "intf-change", val );
1421     return VLC_SUCCESS;
1422 }
1423