1 /*****************************************************************************
2 * video_output.c : video output thread
4 * This module describes the programming interface for video output threads.
5 * It includes functions allowing to open a new thread, send pictures to a
6 * thread, and destroy a previously oppened video output thread.
7 *****************************************************************************
8 * Copyright (C) 2000-2007 the VideoLAN team
11 * Authors: Vincent Seguin <seguin@via.ecp.fr>
12 * Gildas Bazin <gbazin@videolan.org>
14 * This program is free software; you can redistribute it and/or modify
15 * it under the terms of the GNU General Public License as published by
16 * the Free Software Foundation; either version 2 of the License, or
17 * (at your option) any later version.
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
27 *****************************************************************************/
29 /*****************************************************************************
31 *****************************************************************************/
36 #include <vlc_common.h>
38 #include <stdlib.h> /* free() */
42 #ifdef HAVE_SYS_TIMES_H
43 # include <sys/times.h>
48 #include <vlc_filter.h>
52 #if defined( __APPLE__ )
53 /* Include darwin_specific.h here if needed */
56 /** FIXME This is quite ugly but needed while we don't have counters
58 //#include "input/input_internal.h"
61 #include <vlc_input.h>
62 #include "vout_pictures.h"
63 #include "vout_internal.h"
65 /*****************************************************************************
67 *****************************************************************************/
68 static int InitThread ( vout_thread_t * );
69 static void* RunThread ( void * );
70 static void ErrorThread ( vout_thread_t * );
71 static void CleanThread ( vout_thread_t * );
72 static void EndThread ( vout_thread_t * );
74 static void AspectRatio ( int, int *, int * );
76 static void VideoFormatImportRgb( video_format_t *, const picture_heap_t * );
77 static void PictureHeapFixRgb( picture_heap_t * );
79 static void vout_Destructor ( vlc_object_t * p_this );
81 /* Object variables callbacks */
82 static int FilterCallback( vlc_object_t *, char const *,
83 vlc_value_t, vlc_value_t, void * );
84 static int VideoFilter2Callback( vlc_object_t *, char const *,
85 vlc_value_t, vlc_value_t, void * );
88 static void PostProcessEnable( vout_thread_t * );
89 static void PostProcessDisable( vout_thread_t * );
90 static void PostProcessSetFilterQuality( vout_thread_t *p_vout );
91 static int PostProcessCallback( vlc_object_t *, char const *,
92 vlc_value_t, vlc_value_t, void * );
94 static void DeinterlaceEnable( vout_thread_t * );
96 /* From vout_intf.c */
97 int vout_Snapshot( vout_thread_t *, picture_t * );
99 /* Display media title in OSD */
100 static void DisplayTitleOnOSD( vout_thread_t *p_vout );
102 /* Time during which the thread will sleep if it has nothing to
103 * display (in micro-seconds) */
104 #define VOUT_IDLE_SLEEP ((int)(0.020*CLOCK_FREQ))
106 /* Maximum lap of time allowed between the beginning of rendering and
107 * display. If, compared to the current date, the next image is too
108 * late, the thread will perform an idle loop. This time should be
109 * at least VOUT_IDLE_SLEEP plus the time required to render a few
110 * images, to avoid trashing of decoded images */
111 #define VOUT_DISPLAY_DELAY ((int)(0.200*CLOCK_FREQ))
113 /* Better be in advance when awakening than late... */
114 #define VOUT_MWAIT_TOLERANCE ((mtime_t)(0.020*CLOCK_FREQ))
116 /* Minimum number of direct pictures the video output will accept without
117 * creating additional pictures in system memory */
118 #ifdef OPTIMIZE_MEMORY
119 # define VOUT_MIN_DIRECT_PICTURES (VOUT_MAX_PICTURES/2)
121 # define VOUT_MIN_DIRECT_PICTURES (3*VOUT_MAX_PICTURES/4)
124 /*****************************************************************************
125 * Video Filter2 functions
126 *****************************************************************************/
127 static picture_t *video_new_buffer_filter( filter_t *p_filter )
129 vout_thread_t *p_vout = (vout_thread_t*)p_filter->p_owner;
130 picture_t *p_picture = vout_CreatePicture( p_vout, 0, 0, 0 );
132 p_picture->i_status = READY_PICTURE;
137 static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
139 vout_thread_t *p_vout = (vout_thread_t*)p_filter->p_owner;
141 vlc_mutex_lock( &p_vout->picture_lock );
142 vout_UsePictureLocked( p_vout, p_pic );
143 vlc_mutex_unlock( &p_vout->picture_lock );
146 static int video_filter_buffer_allocation_init( filter_t *p_filter, void *p_data )
148 p_filter->pf_vout_buffer_new = video_new_buffer_filter;
149 p_filter->pf_vout_buffer_del = video_del_buffer_filter;
150 p_filter->p_owner = p_data; /* p_vout */
154 /*****************************************************************************
155 * vout_Request: find a video output thread, create one, or destroy one.
156 *****************************************************************************
157 * This function looks for a video output thread matching the current
158 * properties. If not found, it spawns a new one.
159 *****************************************************************************/
160 vout_thread_t *__vout_Request( vlc_object_t *p_this, vout_thread_t *p_vout,
161 video_format_t *p_fmt )
165 /* Video output is no longer used.
166 * TODO: support for reusing video outputs with proper _thread-safe_
167 * reference handling. */
169 vout_CloseAndRelease( p_vout );
173 /* If a video output was provided, lock it, otherwise look for one. */
176 vlc_object_hold( p_vout );
179 /* TODO: find a suitable unused video output */
181 /* If we now have a video output, check it has the right properties */
184 vlc_mutex_lock( &p_vout->change_lock );
186 /* We don't directly check for the "vout-filter" variable for obvious
187 * performance reasons. */
188 if( p_vout->p->b_filter_change )
190 char *psz_filter_chain = var_GetString( p_vout, "vout-filter" );
192 if( psz_filter_chain && !*psz_filter_chain )
194 free( psz_filter_chain );
195 psz_filter_chain = NULL;
197 if( p_vout->p->psz_filter_chain && !*p_vout->p->psz_filter_chain )
199 free( p_vout->p->psz_filter_chain );
200 p_vout->p->psz_filter_chain = NULL;
203 if( !psz_filter_chain && !p_vout->p->psz_filter_chain )
205 p_vout->p->b_filter_change = false;
208 free( psz_filter_chain );
211 if( p_vout->fmt_render.i_chroma != vlc_fourcc_GetCodec( VIDEO_ES, p_fmt->i_chroma ) ||
212 p_vout->fmt_render.i_width != p_fmt->i_width ||
213 p_vout->fmt_render.i_height != p_fmt->i_height ||
214 p_vout->p->b_filter_change )
216 vlc_mutex_unlock( &p_vout->change_lock );
218 /* We are not interested in this format, close this vout */
219 vout_CloseAndRelease( p_vout );
220 vlc_object_release( p_vout );
225 /* This video output is cool! Hijack it. */
226 if( p_vout->fmt_render.i_aspect != p_fmt->i_aspect )
228 /* Correct aspect ratio on change
229 * FIXME factorize this code with other aspect ration related code */
230 unsigned int i_sar_num;
231 unsigned int i_sar_den;
232 unsigned int i_aspect;
234 i_aspect = p_fmt->i_aspect;
235 vlc_ureduce( &i_sar_num, &i_sar_den,
236 p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
238 /* What's that, it does not seems to be used correcly everywhere
239 * beside the previous p_vout->fmt_render.i_aspect != p_fmt->i_aspect
240 * should be fixed to use it too then */
241 if( p_vout->i_par_num > 0 && p_vout->i_par_den > 0 )
243 i_sar_num *= p_vout->i_par_den;
244 i_sar_den *= p_vout->i_par_num;
245 i_aspect = i_aspect * p_vout->i_par_den / p_vout->i_par_num;
249 if( i_sar_num > 0 && i_sar_den > 0 && i_aspect > 0 )
251 p_vout->fmt_in.i_sar_num = i_sar_num;
252 p_vout->fmt_in.i_sar_den = i_sar_den;
253 p_vout->fmt_in.i_aspect = i_aspect;
255 p_vout->fmt_render.i_sar_num = i_sar_num;
256 p_vout->fmt_render.i_sar_den = i_sar_den;
257 p_vout->fmt_render.i_aspect = i_aspect;
259 p_vout->render.i_aspect = i_aspect;
261 p_vout->i_changes |= VOUT_ASPECT_CHANGE;
265 vlc_mutex_unlock( &p_vout->change_lock );
267 vlc_object_release( p_vout );
272 msg_Dbg( p_this, "reusing provided vout" );
274 spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), false );
275 vlc_object_detach( p_vout );
277 vlc_object_attach( p_vout, p_this );
278 spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), true );
284 msg_Dbg( p_this, "no usable vout present, spawning one" );
286 p_vout = vout_Create( p_this, p_fmt );
292 /*****************************************************************************
293 * vout_Create: creates a new video output thread
294 *****************************************************************************
295 * This function creates a new video output thread, and returns a pointer
296 * to its description. On error, it returns NULL.
297 *****************************************************************************/
298 vout_thread_t * __vout_Create( vlc_object_t *p_parent, video_format_t *p_fmt )
300 vout_thread_t * p_vout; /* thread descriptor */
301 int i_index; /* loop variable */
304 unsigned int i_width = p_fmt->i_width;
305 unsigned int i_height = p_fmt->i_height;
306 vlc_fourcc_t i_chroma = vlc_fourcc_GetCodec( VIDEO_ES, p_fmt->i_chroma );
307 unsigned int i_aspect = p_fmt->i_aspect;
309 config_chain_t *p_cfg;
313 if( i_width <= 0 || i_height <= 0 || i_aspect <= 0 )
316 vlc_ureduce( &p_fmt->i_sar_num, &p_fmt->i_sar_den,
317 p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
318 if( p_fmt->i_sar_num <= 0 || p_fmt->i_sar_den <= 0 )
321 /* Allocate descriptor */
322 static const char typename[] = "video output";
323 p_vout = vlc_custom_create( p_parent, sizeof( *p_vout ), VLC_OBJECT_VOUT,
329 p_vout->p = calloc( 1, sizeof(*p_vout->p) );
332 vlc_object_release( p_vout );
336 /* Initialize pictures - translation tables and functions
337 * will be initialized later in InitThread */
338 for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++)
340 p_vout->p_picture[i_index].pf_lock = NULL;
341 p_vout->p_picture[i_index].pf_unlock = NULL;
342 p_vout->p_picture[i_index].i_status = FREE_PICTURE;
343 p_vout->p_picture[i_index].i_type = EMPTY_PICTURE;
344 p_vout->p_picture[i_index].b_slow = 0;
347 /* No images in the heap */
348 p_vout->i_heap_size = 0;
350 /* Initialize the rendering heap */
351 I_RENDERPICTURES = 0;
353 p_vout->fmt_render = *p_fmt; /* FIXME palette */
354 p_vout->fmt_in = *p_fmt; /* FIXME palette */
356 p_vout->render.i_width = i_width;
357 p_vout->render.i_height = i_height;
358 p_vout->render.i_chroma = i_chroma;
359 p_vout->render.i_aspect = i_aspect;
361 p_vout->render.i_rmask = p_fmt->i_rmask;
362 p_vout->render.i_gmask = p_fmt->i_gmask;
363 p_vout->render.i_bmask = p_fmt->i_bmask;
365 p_vout->render.i_last_used_pic = -1;
366 p_vout->render.b_allow_modify_pics = 1;
368 /* Zero the output heap */
369 I_OUTPUTPICTURES = 0;
370 p_vout->output.i_width = 0;
371 p_vout->output.i_height = 0;
372 p_vout->output.i_chroma = 0;
373 p_vout->output.i_aspect = 0;
375 p_vout->output.i_rmask = 0;
376 p_vout->output.i_gmask = 0;
377 p_vout->output.i_bmask = 0;
379 /* Initialize misc stuff */
380 p_vout->i_changes = 0;
381 p_vout->b_autoscale = 1;
382 p_vout->i_zoom = ZOOM_FP_FACTOR;
383 p_vout->b_fullscreen = 0;
384 p_vout->i_alignment = 0;
385 p_vout->p->render_time = 10;
386 p_vout->p->c_fps_samples = 0;
387 p_vout->p->i_picture_lost = 0;
388 p_vout->p->i_picture_displayed = 0;
389 p_vout->p->b_filter_change = 0;
390 p_vout->p->b_paused = false;
391 p_vout->p->i_pause_date = 0;
392 p_vout->pf_control = NULL;
393 p_vout->p->i_par_num =
394 p_vout->p->i_par_den = 1;
395 p_vout->p->p_picture_displayed = NULL;
396 p_vout->p->i_picture_displayed_date = 0;
397 p_vout->p->b_picture_displayed = false;
398 p_vout->p->b_picture_empty = false;
399 p_vout->p->i_picture_qtype = QTYPE_NONE;
401 p_vout->p->snapshot.b_available = true;
402 p_vout->p->snapshot.i_request = 0;
403 p_vout->p->snapshot.p_picture = NULL;
404 vlc_mutex_init( &p_vout->p->snapshot.lock );
405 vlc_cond_init( &p_vout->p->snapshot.wait );
407 /* Initialize locks */
408 vlc_mutex_init( &p_vout->picture_lock );
409 vlc_cond_init( &p_vout->p->picture_wait );
410 vlc_mutex_init( &p_vout->change_lock );
411 vlc_mutex_init( &p_vout->p->vfilter_lock );
413 /* Mouse coordinates */
414 var_Create( p_vout, "mouse-x", VLC_VAR_INTEGER );
415 var_Create( p_vout, "mouse-y", VLC_VAR_INTEGER );
416 var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
417 var_Create( p_vout, "mouse-moved", VLC_VAR_BOOL );
418 var_Create( p_vout, "mouse-clicked", VLC_VAR_BOOL );
420 /* Initialize subpicture unit */
421 p_vout->p_spu = spu_Create( p_vout );
423 /* Attach the new object now so we can use var inheritance below */
424 vlc_object_attach( p_vout, p_parent );
427 spu_Init( p_vout->p_spu );
429 spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), true );
431 /* Take care of some "interface/control" related initialisations */
432 vout_IntfInit( p_vout );
434 /* If the parent is not a VOUT object, that means we are at the start of
435 * the video output pipe */
436 if( vlc_internals( p_parent )->i_object_type != VLC_OBJECT_VOUT )
438 /* Look for the default filter configuration */
439 p_vout->p->psz_filter_chain =
440 var_CreateGetStringCommand( p_vout, "vout-filter" );
442 /* Apply video filter2 objects on the first vout */
444 var_CreateGetStringCommand( p_vout, "video-filter" );
446 p_vout->p->b_first_vout = true;
450 /* continue the parent's filter chain */
453 /* Ugly hack to jump to our configuration chain */
454 p_vout->p->psz_filter_chain
455 = ((vout_thread_t *)p_parent)->p->psz_filter_chain;
456 p_vout->p->psz_filter_chain
457 = config_ChainCreate( &psz_tmp, &p_cfg, p_vout->p->psz_filter_chain );
458 config_ChainDestroy( p_cfg );
461 /* Create a video filter2 var ... but don't inherit values */
462 var_Create( p_vout, "video-filter",
463 VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
464 p_vout->p->psz_vf2 = var_GetString( p_vout, "video-filter" );
467 p_vout->p->b_first_vout = false;
470 var_AddCallback( p_vout, "video-filter", VideoFilter2Callback, NULL );
471 p_vout->p->p_vf2_chain = filter_chain_New( p_vout, "video filter2",
472 false, video_filter_buffer_allocation_init, NULL, p_vout );
474 /* Choose the video output module */
475 if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
477 psz_parser = var_CreateGetString( p_vout, "vout" );
481 psz_parser = strdup( p_vout->p->psz_filter_chain );
482 p_vout->p->b_title_show = false;
485 /* Create the vout thread */
486 char* psz_tmp = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
489 p_vout->p_cfg = p_cfg;
490 p_vout->p_module = module_need( p_vout,
491 ( p_vout->p->psz_filter_chain && *p_vout->p->psz_filter_chain ) ?
492 "video filter" : "video output", psz_name, p_vout->p->psz_filter_chain && *p_vout->p->psz_filter_chain );
495 vlc_object_set_destructor( p_vout, vout_Destructor );
497 if( p_vout->p_module == NULL )
499 msg_Err( p_vout, "no suitable vout module" );
500 spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), false );
501 spu_Destroy( p_vout->p_spu );
502 p_vout->p_spu = NULL;
503 vlc_object_release( p_vout );
507 /* Create a few object variables for interface interaction */
508 var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
509 text.psz_string = _("Filters");
510 var_Change( p_vout, "vout-filter", VLC_VAR_SETTEXT, &text, NULL );
511 var_AddCallback( p_vout, "vout-filter", FilterCallback, NULL );
514 DeinterlaceEnable( p_vout );
517 vlc_cond_init( &p_vout->p->change_wait );
518 if( vlc_clone( &p_vout->p->thread, RunThread, p_vout,
519 VLC_THREAD_PRIORITY_OUTPUT ) )
521 module_unneed( p_vout, p_vout->p_module );
522 p_vout->p_module = NULL;
523 spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), false );
524 spu_Destroy( p_vout->p_spu );
525 p_vout->p_spu = NULL;
526 vlc_object_release( p_vout );
530 vlc_mutex_lock( &p_vout->change_lock );
531 while( !p_vout->p->b_ready )
532 { /* We are (ab)using the same condition in opposite directions for
533 * b_ready and b_done. This works because of the strict ordering. */
534 assert( !p_vout->p->b_done );
535 vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
537 vlc_mutex_unlock( &p_vout->change_lock );
539 if( p_vout->b_error )
541 msg_Err( p_vout, "video output creation failed" );
542 vout_CloseAndRelease( p_vout );
549 /*****************************************************************************
550 * vout_Close: Close a vout created by vout_Create.
551 *****************************************************************************
552 * You HAVE to call it on vout created by vout_Create before vlc_object_release.
553 * You should NEVER call it on vout not obtained through vout_Create
554 * (like with vout_Request or vlc_object_find.)
555 * You can use vout_CloseAndRelease() as a convenience method.
556 *****************************************************************************/
557 void vout_Close( vout_thread_t *p_vout )
561 vlc_mutex_lock( &p_vout->change_lock );
562 p_vout->p->b_done = true;
563 vlc_cond_signal( &p_vout->p->change_wait );
564 vlc_mutex_unlock( &p_vout->change_lock );
566 vlc_mutex_lock( &p_vout->p->snapshot.lock );
567 p_vout->p->snapshot.b_available = false;
568 vlc_cond_broadcast( &p_vout->p->snapshot.wait );
569 vlc_mutex_unlock( &p_vout->p->snapshot.lock );
571 vlc_join( p_vout->p->thread, NULL );
572 module_unneed( p_vout, p_vout->p_module );
573 p_vout->p_module = NULL;
577 static void vout_Destructor( vlc_object_t * p_this )
579 vout_thread_t *p_vout = (vout_thread_t *)p_this;
581 /* Make sure the vout was stopped first */
582 assert( !p_vout->p_module );
586 spu_Destroy( p_vout->p_spu );
588 /* Destroy the locks */
589 vlc_cond_destroy( &p_vout->p->change_wait );
590 vlc_cond_destroy( &p_vout->p->picture_wait );
591 vlc_mutex_destroy( &p_vout->picture_lock );
592 vlc_mutex_destroy( &p_vout->change_lock );
593 vlc_mutex_destroy( &p_vout->p->vfilter_lock );
598 picture_t *p_picture = p_vout->p->snapshot.p_picture;
602 p_vout->p->snapshot.p_picture = p_picture->p_next;
604 picture_Release( p_picture );
606 vlc_cond_destroy( &p_vout->p->snapshot.wait );
607 vlc_mutex_destroy( &p_vout->p->snapshot.lock );
610 free( p_vout->p->psz_filter_chain );
611 free( p_vout->p->psz_title );
613 config_ChainDestroy( p_vout->p_cfg );
618 vout_thread_t *p_another_vout;
620 /* This is a dirty hack mostly for Linux, where there is no way to get the
621 * GUI back if you closed it while playing video. This is solved in
622 * Mac OS X, where we have this novelty called menubar, that will always
623 * allow you access to the applications main functionality. They should try
624 * that on linux sometime. */
625 p_another_vout = vlc_object_find( p_this->p_libvlc,
626 VLC_OBJECT_VOUT, FIND_ANYWHERE );
627 if( p_another_vout == NULL )
628 var_SetBool( p_this->p_libvlc, "intf-show", true );
630 vlc_object_release( p_another_vout );
635 void vout_ChangePause( vout_thread_t *p_vout, bool b_paused, mtime_t i_date )
637 vlc_mutex_lock( &p_vout->change_lock );
639 assert( !p_vout->p->b_paused || !b_paused );
641 vlc_mutex_lock( &p_vout->picture_lock );
643 p_vout->p->i_picture_displayed_date = 0;
645 if( p_vout->p->b_paused )
647 const mtime_t i_duration = i_date - p_vout->p->i_pause_date;
649 for( int i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
651 picture_t *p_pic = PP_RENDERPICTURE[i_index];
653 if( p_pic->i_status == READY_PICTURE )
654 p_pic->date += i_duration;
656 vlc_cond_signal( &p_vout->p->picture_wait );
657 vlc_mutex_unlock( &p_vout->picture_lock );
659 spu_OffsetSubtitleDate( p_vout->p_spu, i_duration );
663 vlc_mutex_unlock( &p_vout->picture_lock );
665 p_vout->p->b_paused = b_paused;
666 p_vout->p->i_pause_date = i_date;
668 vlc_mutex_unlock( &p_vout->change_lock );
671 void vout_GetResetStatistic( vout_thread_t *p_vout, int *pi_displayed, int *pi_lost )
673 vlc_mutex_lock( &p_vout->change_lock );
675 *pi_displayed = p_vout->p->i_picture_displayed;
676 *pi_lost = p_vout->p->i_picture_lost;
678 p_vout->p->i_picture_displayed = 0;
679 p_vout->p->i_picture_lost = 0;
681 vlc_mutex_unlock( &p_vout->change_lock );
684 void vout_Flush( vout_thread_t *p_vout, mtime_t i_date )
686 vlc_mutex_lock( &p_vout->picture_lock );
687 p_vout->p->i_picture_displayed_date = 0;
688 for( int i = 0; i < p_vout->render.i_pictures; i++ )
690 picture_t *p_pic = p_vout->render.pp_picture[i];
692 if( p_pic->i_status == READY_PICTURE ||
693 p_pic->i_status == DISPLAYED_PICTURE )
695 /* We cannot change picture status if it is in READY_PICTURE state,
696 * Just make sure they won't be displayed */
697 if( p_pic->date > i_date )
698 p_pic->date = i_date;
701 vlc_cond_signal( &p_vout->p->picture_wait );
702 vlc_mutex_unlock( &p_vout->picture_lock );
705 void vout_FixLeaks( vout_thread_t *p_vout, bool b_forced )
707 int i_pic, i_ready_pic;
709 vlc_mutex_lock( &p_vout->picture_lock );
711 for( i_pic = 0, i_ready_pic = 0; i_pic < p_vout->render.i_pictures && !b_forced; i_pic++ )
713 const picture_t *p_pic = p_vout->render.pp_picture[i_pic];
715 if( p_pic->i_status == READY_PICTURE )
718 /* If we have at least 2 ready pictures, wait for the vout thread to
720 if( i_ready_pic >= 2 )
726 if( p_pic->i_status == DISPLAYED_PICTURE )
728 /* If at least one displayed picture is not referenced
729 * let vout free it */
730 if( p_pic->i_refcount == 0 )
734 if( i_pic < p_vout->render.i_pictures && !b_forced )
736 vlc_mutex_unlock( &p_vout->picture_lock );
740 /* Too many pictures are still referenced, there is probably a bug
741 * with the decoder */
743 msg_Err( p_vout, "pictures leaked, resetting the heap" );
745 /* Just free all the pictures */
746 for( i_pic = 0; i_pic < p_vout->render.i_pictures; i_pic++ )
748 picture_t *p_pic = p_vout->render.pp_picture[i_pic];
750 msg_Dbg( p_vout, "[%d] %d %d", i_pic, p_pic->i_status, p_pic->i_refcount );
751 p_pic->i_refcount = 0;
753 switch( p_pic->i_status )
756 case DISPLAYED_PICTURE:
757 case RESERVED_PICTURE:
758 if( p_pic != p_vout->p->p_picture_displayed )
759 vout_UsePictureLocked( p_vout, p_pic );
763 vlc_cond_signal( &p_vout->p->picture_wait );
764 vlc_mutex_unlock( &p_vout->picture_lock );
766 void vout_NextPicture( vout_thread_t *p_vout, mtime_t *pi_duration )
768 vlc_mutex_lock( &p_vout->picture_lock );
770 const mtime_t i_displayed_date = p_vout->p->i_picture_displayed_date;
772 p_vout->p->b_picture_displayed = false;
773 p_vout->p->b_picture_empty = false;
774 if( p_vout->p->p_picture_displayed )
776 p_vout->p->p_picture_displayed->date = 1;
777 vlc_cond_signal( &p_vout->p->picture_wait );
780 while( !p_vout->p->b_picture_displayed && !p_vout->p->b_picture_empty )
781 vlc_cond_wait( &p_vout->p->picture_wait, &p_vout->picture_lock );
783 *pi_duration = __MAX( p_vout->p->i_picture_displayed_date - i_displayed_date, 0 );
785 /* TODO advance subpicture by the duration ... */
787 vlc_mutex_unlock( &p_vout->picture_lock );
790 void vout_DisplayTitle( vout_thread_t *p_vout, const char *psz_title )
794 if( !config_GetInt( p_vout, "osd" ) )
797 vlc_mutex_lock( &p_vout->change_lock );
798 free( p_vout->p->psz_title );
799 p_vout->p->psz_title = strdup( psz_title );
800 vlc_mutex_unlock( &p_vout->change_lock );
803 /*****************************************************************************
804 * InitThread: initialize video output thread
805 *****************************************************************************
806 * This function is called from RunThread and performs the second step of the
807 * initialization. It returns 0 on success. Note that the thread's flag are not
808 * modified inside this function.
809 * XXX You have to enter it with change_lock taken.
810 *****************************************************************************/
811 static int ChromaCreate( vout_thread_t *p_vout );
812 static void ChromaDestroy( vout_thread_t *p_vout );
814 static bool ChromaIsEqual( const picture_heap_t *p_output, const picture_heap_t *p_render )
816 if( !vout_ChromaCmp( p_output->i_chroma, p_render->i_chroma ) )
819 if( p_output->i_chroma != VLC_CODEC_RGB15 &&
820 p_output->i_chroma != VLC_CODEC_RGB16 &&
821 p_output->i_chroma != VLC_CODEC_RGB24 &&
822 p_output->i_chroma != VLC_CODEC_RGB32 )
825 return p_output->i_rmask == p_render->i_rmask &&
826 p_output->i_gmask == p_render->i_gmask &&
827 p_output->i_bmask == p_render->i_bmask;
830 static int InitThread( vout_thread_t *p_vout )
832 int i, i_aspect_x, i_aspect_y;
834 /* Initialize output method, it allocates direct buffers for us */
835 if( p_vout->pf_init( p_vout ) )
838 p_vout->p->p_picture_displayed = NULL;
840 if( !I_OUTPUTPICTURES )
842 msg_Err( p_vout, "plugin was unable to allocate at least "
843 "one direct buffer" );
844 p_vout->pf_end( p_vout );
848 if( I_OUTPUTPICTURES > VOUT_MAX_PICTURES )
850 msg_Err( p_vout, "plugin allocated too many direct buffers, "
851 "our internal buffers must have overflown." );
852 p_vout->pf_end( p_vout );
856 msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
858 AspectRatio( p_vout->fmt_render.i_aspect, &i_aspect_x, &i_aspect_y );
860 AspectRatio( p_vout->fmt_in.i_aspect, &i_aspect_x, &i_aspect_y );
862 if( !p_vout->fmt_out.i_width || !p_vout->fmt_out.i_height )
864 p_vout->fmt_out.i_width = p_vout->fmt_out.i_visible_width =
865 p_vout->output.i_width;
866 p_vout->fmt_out.i_height = p_vout->fmt_out.i_visible_height =
867 p_vout->output.i_height;
868 p_vout->fmt_out.i_x_offset = p_vout->fmt_out.i_y_offset = 0;
870 p_vout->fmt_out.i_aspect = p_vout->output.i_aspect;
871 p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
873 if( !p_vout->fmt_out.i_sar_num || !p_vout->fmt_out.i_sar_num )
875 p_vout->fmt_out.i_sar_num = p_vout->fmt_out.i_aspect *
876 p_vout->fmt_out.i_height;
877 p_vout->fmt_out.i_sar_den = VOUT_ASPECT_FACTOR *
878 p_vout->fmt_out.i_width;
881 vlc_ureduce( &p_vout->fmt_out.i_sar_num, &p_vout->fmt_out.i_sar_den,
882 p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den, 0 );
884 AspectRatio( p_vout->fmt_out.i_aspect, &i_aspect_x, &i_aspect_y );
886 /* FIXME removed the need of both fmt_* and heap infos */
887 /* Calculate shifts from system-updated masks */
888 PictureHeapFixRgb( &p_vout->render );
889 VideoFormatImportRgb( &p_vout->fmt_render, &p_vout->render );
891 PictureHeapFixRgb( &p_vout->output );
892 VideoFormatImportRgb( &p_vout->fmt_out, &p_vout->output );
894 /* print some usefull debug info about different vout formats
896 msg_Dbg( p_vout, "pic render sz %ix%i, of (%i,%i), vsz %ix%i, 4cc %4.4s, ar %i:%i, sar %i:%i, msk r0x%x g0x%x b0x%x",
897 p_vout->fmt_render.i_width, p_vout->fmt_render.i_height,
898 p_vout->fmt_render.i_x_offset, p_vout->fmt_render.i_y_offset,
899 p_vout->fmt_render.i_visible_width,
900 p_vout->fmt_render.i_visible_height,
901 (char*)&p_vout->fmt_render.i_chroma,
902 i_aspect_x, i_aspect_y,
903 p_vout->fmt_render.i_sar_num, p_vout->fmt_render.i_sar_den,
904 p_vout->fmt_render.i_rmask, p_vout->fmt_render.i_gmask, p_vout->fmt_render.i_bmask );
906 msg_Dbg( p_vout, "pic in sz %ix%i, of (%i,%i), vsz %ix%i, 4cc %4.4s, ar %i:%i, sar %i:%i, msk r0x%x g0x%x b0x%x",
907 p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
908 p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
909 p_vout->fmt_in.i_visible_width,
910 p_vout->fmt_in.i_visible_height,
911 (char*)&p_vout->fmt_in.i_chroma,
912 i_aspect_x, i_aspect_y,
913 p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den,
914 p_vout->fmt_in.i_rmask, p_vout->fmt_in.i_gmask, p_vout->fmt_in.i_bmask );
916 msg_Dbg( p_vout, "pic out sz %ix%i, of (%i,%i), vsz %ix%i, 4cc %4.4s, ar %i:%i, sar %i:%i, msk r0x%x g0x%x b0x%x",
917 p_vout->fmt_out.i_width, p_vout->fmt_out.i_height,
918 p_vout->fmt_out.i_x_offset, p_vout->fmt_out.i_y_offset,
919 p_vout->fmt_out.i_visible_width,
920 p_vout->fmt_out.i_visible_height,
921 (char*)&p_vout->fmt_out.i_chroma,
922 i_aspect_x, i_aspect_y,
923 p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den,
924 p_vout->fmt_out.i_rmask, p_vout->fmt_out.i_gmask, p_vout->fmt_out.i_bmask );
926 /* Check whether we managed to create direct buffers similar to
927 * the render buffers, ie same size and chroma */
928 if( ( p_vout->output.i_width == p_vout->render.i_width )
929 && ( p_vout->output.i_height == p_vout->render.i_height )
930 && ( ChromaIsEqual( &p_vout->output, &p_vout->render ) ) )
932 /* Cool ! We have direct buffers, we can ask the decoder to
933 * directly decode into them ! Map the first render buffers to
934 * the first direct buffers, but keep the first direct buffer
935 * for memcpy operations */
936 p_vout->p->b_direct = true;
938 for( i = 1; i < VOUT_MAX_PICTURES; i++ )
940 if( p_vout->p_picture[ i ].i_type != DIRECT_PICTURE &&
941 I_RENDERPICTURES >= VOUT_MIN_DIRECT_PICTURES - 1 &&
942 p_vout->p_picture[ i - 1 ].i_type == DIRECT_PICTURE )
944 /* We have enough direct buffers so there's no need to
945 * try to use system memory buffers. */
948 PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
952 msg_Dbg( p_vout, "direct render, mapping "
953 "render pictures 0-%i to system pictures 1-%i",
954 VOUT_MAX_PICTURES - 2, VOUT_MAX_PICTURES - 1 );
958 /* Rats... Something is wrong here, we could not find an output
959 * plugin able to directly render what we decode. See if we can
960 * find a chroma plugin to do the conversion */
961 p_vout->p->b_direct = false;
963 if( ChromaCreate( p_vout ) )
965 p_vout->pf_end( p_vout );
969 msg_Dbg( p_vout, "indirect render, mapping "
970 "render pictures 0-%i to system pictures %i-%i",
971 VOUT_MAX_PICTURES - 1, I_OUTPUTPICTURES,
972 I_OUTPUTPICTURES + VOUT_MAX_PICTURES - 1 );
974 /* Append render buffers after the direct buffers */
975 for( i = I_OUTPUTPICTURES; i < 2 * VOUT_MAX_PICTURES; i++ )
977 PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
980 /* Check if we have enough render pictures */
981 if( I_RENDERPICTURES == VOUT_MAX_PICTURES )
986 /* Link pictures back to their heap */
987 for( i = 0 ; i < I_RENDERPICTURES ; i++ )
989 PP_RENDERPICTURE[ i ]->p_heap = &p_vout->render;
992 for( i = 0 ; i < I_OUTPUTPICTURES ; i++ )
994 PP_OUTPUTPICTURE[ i ]->p_heap = &p_vout->output;
1000 /*****************************************************************************
1001 * RunThread: video output thread
1002 *****************************************************************************
1003 * Video output thread. This function does only returns when the thread is
1004 * terminated. It handles the pictures arriving in the video heap and the
1005 * display device events.
1006 *****************************************************************************/
1007 static void* RunThread( void *p_this )
1009 vout_thread_t *p_vout = p_this;
1010 int i_idle_loops = 0; /* loops without displaying a picture */
1011 int i_picture_qtype_last = QTYPE_NONE;
1018 vlc_mutex_lock( &p_vout->change_lock );
1019 p_vout->b_error = InitThread( p_vout );
1021 b_drop_late = var_CreateGetBool( p_vout, "drop-late-frames" );
1023 /* signal the creation of the vout */
1024 p_vout->p->b_ready = true;
1025 vlc_cond_signal( &p_vout->p->change_wait );
1027 if( p_vout->b_error )
1029 EndThread( p_vout );
1030 vlc_mutex_unlock( &p_vout->change_lock );
1035 * Main loop - it is not executed if an error occurred during
1038 while( !p_vout->p->b_done && !p_vout->b_error )
1040 /* Initialize loop variables */
1041 const mtime_t current_date = mdate();
1042 picture_t *p_picture;
1043 picture_t *p_filtered_picture;
1044 mtime_t display_date;
1045 picture_t *p_directbuffer;
1048 if( p_vout->p->b_title_show && p_vout->p->psz_title )
1049 DisplayTitleOnOSD( p_vout );
1051 vlc_mutex_lock( &p_vout->picture_lock );
1053 /* Look for the earliest picture but after the last displayed one */
1054 picture_t *p_last = p_vout->p->p_picture_displayed;;
1057 for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
1059 picture_t *p_pic = PP_RENDERPICTURE[i_index];
1061 if( p_pic->i_status != READY_PICTURE )
1064 if( p_vout->p->b_paused && p_last && p_last->date > 1 )
1067 if( p_last && p_pic != p_last && p_pic->date <= p_last->date )
1069 /* Drop old picture */
1070 vout_UsePictureLocked( p_vout, p_pic );
1072 else if( !p_vout->p->b_paused && !p_pic->b_force && p_pic != p_last &&
1073 p_pic->date < current_date + p_vout->p->render_time &&
1076 /* Picture is late: it will be destroyed and the thread
1077 * will directly choose the next picture */
1078 vout_UsePictureLocked( p_vout, p_pic );
1079 p_vout->p->i_picture_lost++;
1081 msg_Warn( p_vout, "late picture skipped (%"PRId64" > %d)",
1082 current_date - p_pic->date, - p_vout->p->render_time );
1084 else if( ( !p_last || p_last->date < p_pic->date ) &&
1085 ( p_picture == NULL || p_pic->date < p_picture->date ) )
1094 if( !p_vout->p->b_picture_empty )
1096 p_vout->p->b_picture_empty = true;
1097 vlc_cond_signal( &p_vout->p->picture_wait );
1104 display_date = p_picture->date;
1106 /* If we found better than the last picture, destroy it */
1107 if( p_last && p_picture != p_last )
1109 vout_UsePictureLocked( p_vout, p_last );
1110 p_vout->p->p_picture_displayed = p_last = NULL;
1113 /* Compute FPS rate */
1114 p_vout->p->p_fps_sample[ p_vout->p->c_fps_samples++ % VOUT_FPS_SAMPLES ] = display_date;
1116 if( !p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
1118 /* A picture is ready to be rendered, but its rendering date
1119 * is far from the current one so the thread will perform an
1120 * empty loop as if no picture were found. The picture state
1125 else if( p_picture == p_last )
1127 /* We are asked to repeat the previous picture, but we first
1128 * wait for a couple of idle loops */
1129 if( i_idle_loops < 4 )
1136 /* We set the display date to something high, otherwise
1137 * we'll have lots of problems with late pictures */
1138 display_date = current_date + p_vout->p->render_time;
1141 else if( p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
1143 display_date = current_date + VOUT_DISPLAY_DELAY;
1148 if( p_picture->date > 1 )
1150 p_vout->p->i_picture_displayed_date = p_picture->date;
1151 if( p_picture != p_last && !p_vout->p->b_picture_displayed )
1153 p_vout->p->b_picture_displayed = true;
1154 vlc_cond_signal( &p_vout->p->picture_wait );
1157 p_vout->p->p_picture_displayed = p_picture;
1162 const int i_postproc_type = p_vout->p->i_picture_qtype;
1163 const int i_postproc_state = (p_vout->p->i_picture_qtype != QTYPE_NONE) - (i_picture_qtype_last != QTYPE_NONE);
1165 vlc_mutex_unlock( &p_vout->picture_lock );
1167 if( p_picture == NULL )
1170 p_filtered_picture = NULL;
1172 p_filtered_picture = filter_chain_VideoFilter( p_vout->p->p_vf2_chain,
1175 bool b_snapshot = false;
1176 if( vlc_mutex_trylock( &p_vout->p->snapshot.lock ) == 0 )
1178 b_snapshot = p_vout->p->snapshot.i_request > 0
1179 && p_picture != NULL;
1180 vlc_mutex_unlock( &p_vout->p->snapshot.lock );
1184 * Check for subpictures to display
1186 subpicture_t *p_subpic = NULL;
1187 if( display_date > 0 )
1188 p_subpic = spu_SortSubpictures( p_vout->p_spu, display_date,
1189 p_vout->p->b_paused, b_snapshot );
1194 p_vout->p->i_picture_displayed++;
1195 p_directbuffer = vout_RenderPicture( p_vout, p_filtered_picture,
1196 p_subpic, p_vout->p->b_paused );
1199 * Take a snapshot if requested
1201 if( p_directbuffer && b_snapshot )
1203 vlc_mutex_lock( &p_vout->p->snapshot.lock );
1204 assert( p_vout->p->snapshot.i_request > 0 );
1205 while( p_vout->p->snapshot.i_request > 0 )
1207 picture_t *p_pic = picture_New( p_vout->fmt_out.i_chroma,
1208 p_vout->fmt_out.i_width,
1209 p_vout->fmt_out.i_height,
1210 p_vout->fmt_out.i_aspect );
1214 picture_Copy( p_pic, p_directbuffer );
1216 p_pic->p_next = p_vout->p->snapshot.p_picture;
1217 p_vout->p->snapshot.p_picture = p_pic;
1218 p_vout->p->snapshot.i_request--;
1220 vlc_cond_broadcast( &p_vout->p->snapshot.wait );
1221 vlc_mutex_unlock( &p_vout->p->snapshot.lock );
1225 * Call the plugin-specific rendering method if there is one
1227 if( p_filtered_picture != NULL && p_directbuffer != NULL && p_vout->pf_render )
1229 /* Render the direct buffer returned by vout_RenderPicture */
1230 p_vout->pf_render( p_vout, p_directbuffer );
1236 if( display_date != 0 && p_directbuffer != NULL )
1238 mtime_t current_render_time = mdate() - current_date;
1239 /* if render time is very large we don't include it in the mean */
1240 if( current_render_time < p_vout->p->render_time +
1241 VOUT_DISPLAY_DELAY )
1243 /* Store render time using a sliding mean weighting to
1244 * current value in a 3 to 1 ratio*/
1245 p_vout->p->render_time *= 3;
1246 p_vout->p->render_time += current_render_time;
1247 p_vout->p->render_time >>= 2;
1250 msg_Dbg( p_vout, "skipped big render time %d > %d", (int) current_render_time,
1251 (int) (p_vout->p->render_time +VOUT_DISPLAY_DELAY ) ) ;
1254 /* Give back change lock */
1255 vlc_mutex_unlock( &p_vout->change_lock );
1257 /* Sleep a while or until a given date */
1258 if( display_date != 0 )
1260 /* If there are *vout* filters in the chain, better give them the picture
1262 if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
1264 mwait( display_date - VOUT_MWAIT_TOLERANCE );
1269 /* Wait until a frame is being sent or a spurious wakeup (not a problem here) */
1270 vlc_mutex_lock( &p_vout->picture_lock );
1271 vlc_cond_timedwait( &p_vout->p->picture_wait, &p_vout->picture_lock, current_date + VOUT_IDLE_SLEEP );
1272 vlc_mutex_unlock( &p_vout->picture_lock );
1275 /* On awakening, take back lock and send immediately picture
1277 /* Note: p_vout->p->b_done could be true here and now */
1278 vlc_mutex_lock( &p_vout->change_lock );
1281 * Display the previously rendered picture
1283 if( p_filtered_picture != NULL && p_directbuffer != NULL )
1285 /* Display the direct buffer returned by vout_RenderPicture */
1286 if( p_vout->pf_display )
1287 p_vout->pf_display( p_vout, p_directbuffer );
1289 /* Tell the vout this was the last picture and that it does not
1290 * need to be forced anymore. */
1291 p_picture->b_force = false;
1294 /* Drop the filtered picture if created by video filters */
1295 if( p_filtered_picture != NULL && p_filtered_picture != p_picture )
1297 vlc_mutex_lock( &p_vout->picture_lock );
1298 vout_UsePictureLocked( p_vout, p_filtered_picture );
1299 vlc_mutex_unlock( &p_vout->picture_lock );
1302 if( p_picture != NULL )
1304 /* Reinitialize idle loop count */
1309 * Check events and manage thread
1311 if( p_vout->pf_manage && p_vout->pf_manage( p_vout ) )
1313 /* A fatal error occurred, and the thread must terminate
1314 * immediately, without displaying anything - setting b_error to 1
1315 * causes the immediate end of the main while() loop. */
1317 p_vout->b_error = 1;
1321 while( p_vout->i_changes & VOUT_ON_TOP_CHANGE )
1323 p_vout->i_changes &= ~VOUT_ON_TOP_CHANGE;
1324 vlc_mutex_unlock( &p_vout->change_lock );
1325 vout_Control( p_vout, VOUT_SET_STAY_ON_TOP, p_vout->b_on_top );
1326 vlc_mutex_lock( &p_vout->change_lock );
1329 if( p_vout->i_changes & VOUT_SIZE_CHANGE )
1331 /* this must only happen when the vout plugin is incapable of
1332 * rescaling the picture itself. In this case we need to destroy
1333 * the current picture buffers and recreate new ones with the right
1337 p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
1339 assert( !p_vout->p->b_direct );
1341 ChromaDestroy( p_vout );
1343 vlc_mutex_lock( &p_vout->picture_lock );
1345 p_vout->pf_end( p_vout );
1347 p_vout->p->p_picture_displayed = NULL;
1348 for( i = 0; i < I_OUTPUTPICTURES; i++ )
1349 p_vout->p_picture[ i ].i_status = FREE_PICTURE;
1350 vlc_cond_signal( &p_vout->p->picture_wait );
1352 I_OUTPUTPICTURES = 0;
1354 if( p_vout->pf_init( p_vout ) )
1356 msg_Err( p_vout, "cannot resize display" );
1357 /* FIXME: pf_end will be called again in EndThread() */
1358 p_vout->b_error = 1;
1361 vlc_mutex_unlock( &p_vout->picture_lock );
1363 /* Need to reinitialise the chroma plugin. Since we might need
1364 * resizing too and it's not sure that we already had it,
1365 * recreate the chroma plugin chain from scratch. */
1367 if( ChromaCreate( p_vout ) )
1369 msg_Err( p_vout, "WOW THIS SUCKS BIG TIME!!!!!" );
1370 p_vout->b_error = 1;
1372 if( p_vout->b_error )
1376 if( p_vout->i_changes & VOUT_PICTURE_BUFFERS_CHANGE )
1378 /* This happens when the picture buffers need to be recreated.
1379 * This is useful on multimonitor displays for instance.
1381 * Warning: This only works when the vout creates only 1 picture
1383 p_vout->i_changes &= ~VOUT_PICTURE_BUFFERS_CHANGE;
1385 if( !p_vout->p->b_direct )
1386 ChromaDestroy( p_vout );
1388 vlc_mutex_lock( &p_vout->picture_lock );
1390 p_vout->pf_end( p_vout );
1392 I_OUTPUTPICTURES = I_RENDERPICTURES = 0;
1394 p_vout->b_error = InitThread( p_vout );
1395 if( p_vout->b_error )
1396 msg_Err( p_vout, "InitThread after VOUT_PICTURE_BUFFERS_CHANGE failed" );
1398 vlc_cond_signal( &p_vout->p->picture_wait );
1399 vlc_mutex_unlock( &p_vout->picture_lock );
1401 if( p_vout->b_error )
1405 /* Post processing */
1406 if( i_postproc_state == 1 )
1407 PostProcessEnable( p_vout );
1408 else if( i_postproc_state == -1 )
1409 PostProcessDisable( p_vout );
1410 if( i_postproc_state != 0 )
1411 i_picture_qtype_last = i_postproc_type;
1413 /* Check for "video filter2" changes */
1414 vlc_mutex_lock( &p_vout->p->vfilter_lock );
1415 if( p_vout->p->psz_vf2 )
1419 es_format_Init( &fmt, VIDEO_ES, p_vout->fmt_render.i_chroma );
1420 fmt.video = p_vout->fmt_render;
1421 filter_chain_Reset( p_vout->p->p_vf2_chain, &fmt, &fmt );
1423 if( filter_chain_AppendFromString( p_vout->p->p_vf2_chain,
1424 p_vout->p->psz_vf2 ) < 0 )
1425 msg_Err( p_vout, "Video filter chain creation failed" );
1427 free( p_vout->p->psz_vf2 );
1428 p_vout->p->psz_vf2 = NULL;
1430 if( i_picture_qtype_last != QTYPE_NONE )
1431 PostProcessSetFilterQuality( p_vout );
1433 vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1437 * Error loop - wait until the thread destruction is requested
1439 if( p_vout->b_error )
1440 ErrorThread( p_vout );
1443 CleanThread( p_vout );
1444 EndThread( p_vout );
1445 vlc_mutex_unlock( &p_vout->change_lock );
1450 /*****************************************************************************
1451 * ErrorThread: RunThread() error loop
1452 *****************************************************************************
1453 * This function is called when an error occurred during thread main's loop.
1454 * The thread can still receive feed, but must be ready to terminate as soon
1456 *****************************************************************************/
1457 static void ErrorThread( vout_thread_t *p_vout )
1459 /* Wait until a `close' order */
1460 while( !p_vout->p->b_done )
1461 vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
1464 /*****************************************************************************
1465 * CleanThread: clean up after InitThread
1466 *****************************************************************************
1467 * This function is called after a sucessful
1468 * initialization. It frees all resources allocated by InitThread.
1469 * XXX You have to enter it with change_lock taken.
1470 *****************************************************************************/
1471 static void CleanThread( vout_thread_t *p_vout )
1473 int i_index; /* index in heap */
1475 if( !p_vout->p->b_direct )
1476 ChromaDestroy( p_vout );
1478 /* Destroy all remaining pictures */
1479 for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++ )
1481 if ( p_vout->p_picture[i_index].i_type == MEMORY_PICTURE )
1483 free( p_vout->p_picture[i_index].p_data_orig );
1487 /* Destroy translation tables */
1488 if( !p_vout->b_error )
1489 p_vout->pf_end( p_vout );
1492 /*****************************************************************************
1493 * EndThread: thread destruction
1494 *****************************************************************************
1495 * This function is called when the thread ends.
1496 * It frees all resources not allocated by InitThread.
1497 * XXX You have to enter it with change_lock taken.
1498 *****************************************************************************/
1499 static void EndThread( vout_thread_t *p_vout )
1503 struct tms cpu_usage;
1504 times( &cpu_usage );
1506 msg_Dbg( p_vout, "cpu usage (user: %d, system: %d)",
1507 cpu_usage.tms_utime, cpu_usage.tms_stime );
1511 /* FIXME does that function *really* need to be called inside the thread ? */
1513 /* Detach subpicture unit from both input and vout */
1514 spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), false );
1515 vlc_object_detach( p_vout->p_spu );
1517 /* Destroy the video filters2 */
1518 filter_chain_Delete( p_vout->p->p_vf2_chain );
1521 /* Thread helpers */
1522 static picture_t *ChromaGetPicture( filter_t *p_filter )
1524 picture_t *p_pic = (picture_t *)p_filter->p_owner;
1525 p_filter->p_owner = NULL;
1529 static int ChromaCreate( vout_thread_t *p_vout )
1531 static const char typename[] = "chroma";
1534 /* Choose the best module */
1535 p_chroma = p_vout->p->p_chroma =
1536 vlc_custom_create( p_vout, sizeof(filter_t), VLC_OBJECT_GENERIC,
1539 vlc_object_attach( p_chroma, p_vout );
1541 /* TODO: Set the fmt_in and fmt_out stuff here */
1542 p_chroma->fmt_in.video = p_vout->fmt_render;
1543 p_chroma->fmt_out.video = p_vout->fmt_out;
1544 VideoFormatImportRgb( &p_chroma->fmt_in.video, &p_vout->render );
1545 VideoFormatImportRgb( &p_chroma->fmt_out.video, &p_vout->output );
1547 p_chroma->p_module = module_need( p_chroma, "video filter2", NULL, false );
1549 if( p_chroma->p_module == NULL )
1551 msg_Err( p_vout, "no chroma module for %4.4s to %4.4s i=%dx%d o=%dx%d",
1552 (char*)&p_vout->render.i_chroma,
1553 (char*)&p_vout->output.i_chroma,
1554 p_chroma->fmt_in.video.i_width, p_chroma->fmt_in.video.i_height,
1555 p_chroma->fmt_out.video.i_width, p_chroma->fmt_out.video.i_height
1558 vlc_object_release( p_vout->p->p_chroma );
1559 p_vout->p->p_chroma = NULL;
1561 return VLC_EGENERIC;
1563 p_chroma->pf_vout_buffer_new = ChromaGetPicture;
1567 static void ChromaDestroy( vout_thread_t *p_vout )
1569 assert( !p_vout->p->b_direct );
1571 if( !p_vout->p->p_chroma )
1574 module_unneed( p_vout->p->p_chroma, p_vout->p->p_chroma->p_module );
1575 vlc_object_release( p_vout->p->p_chroma );
1576 p_vout->p->p_chroma = NULL;
1579 /* following functions are local */
1580 static void AspectRatio( int i_aspect, int *i_aspect_x, int *i_aspect_y )
1582 const int i_pgcd = i_aspect ? GCD( i_aspect, VOUT_ASPECT_FACTOR ) : 1;
1583 *i_aspect_x = i_aspect / i_pgcd;
1584 *i_aspect_y = VOUT_ASPECT_FACTOR / i_pgcd;
1588 * This function copies all RGB informations from a picture_heap_t into
1591 static void VideoFormatImportRgb( video_format_t *p_fmt, const picture_heap_t *p_heap )
1593 p_fmt->i_rmask = p_heap->i_rmask;
1594 p_fmt->i_gmask = p_heap->i_gmask;
1595 p_fmt->i_bmask = p_heap->i_bmask;
1596 p_fmt->i_rrshift = p_heap->i_rrshift;
1597 p_fmt->i_lrshift = p_heap->i_lrshift;
1598 p_fmt->i_rgshift = p_heap->i_rgshift;
1599 p_fmt->i_lgshift = p_heap->i_lgshift;
1600 p_fmt->i_rbshift = p_heap->i_rbshift;
1601 p_fmt->i_lbshift = p_heap->i_lbshift;
1605 * This funtion copes all RGB informations from a video_format_t into
1608 static void VideoFormatExportRgb( const video_format_t *p_fmt, picture_heap_t *p_heap )
1610 p_heap->i_rmask = p_fmt->i_rmask;
1611 p_heap->i_gmask = p_fmt->i_gmask;
1612 p_heap->i_bmask = p_fmt->i_bmask;
1613 p_heap->i_rrshift = p_fmt->i_rrshift;
1614 p_heap->i_lrshift = p_fmt->i_lrshift;
1615 p_heap->i_rgshift = p_fmt->i_rgshift;
1616 p_heap->i_lgshift = p_fmt->i_lgshift;
1617 p_heap->i_rbshift = p_fmt->i_rbshift;
1618 p_heap->i_lbshift = p_fmt->i_lbshift;
1622 * This function computes rgb shifts from masks
1624 static void PictureHeapFixRgb( picture_heap_t *p_heap )
1629 fmt.i_chroma = p_heap->i_chroma;
1630 VideoFormatImportRgb( &fmt, p_heap );
1633 video_format_FixRgb( &fmt );
1635 VideoFormatExportRgb( &fmt, p_heap );
1638 /*****************************************************************************
1639 * object variables callbacks: a bunch of object variables are used by the
1640 * interfaces to interact with the vout.
1641 *****************************************************************************/
1642 static int FilterCallback( vlc_object_t *p_this, char const *psz_cmd,
1643 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1645 vout_thread_t *p_vout = (vout_thread_t *)p_this;
1646 input_thread_t *p_input;
1647 (void)psz_cmd; (void)oldval; (void)p_data;
1649 p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
1653 msg_Err( p_vout, "Input not found" );
1654 return VLC_EGENERIC;
1657 var_SetBool( p_vout, "intf-change", true );
1659 /* Modify input as well because the vout might have to be restarted */
1660 var_Create( p_input, "vout-filter", VLC_VAR_STRING );
1661 var_SetString( p_input, "vout-filter", newval.psz_string );
1663 /* Now restart current video stream */
1664 input_Control( p_input, INPUT_RESTART_ES, -VIDEO_ES );
1665 vlc_object_release( p_input );
1670 /*****************************************************************************
1671 * Video Filter2 stuff
1672 *****************************************************************************/
1673 static int VideoFilter2Callback( vlc_object_t *p_this, char const *psz_cmd,
1674 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1676 vout_thread_t *p_vout = (vout_thread_t *)p_this;
1677 (void)psz_cmd; (void)oldval; (void)p_data;
1679 vlc_mutex_lock( &p_vout->p->vfilter_lock );
1680 p_vout->p->psz_vf2 = strdup( newval.psz_string );
1681 vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1686 /*****************************************************************************
1688 *****************************************************************************/
1689 static bool PostProcessIsPresent( const char *psz_filter )
1691 const char *psz_pp = "postproc";
1692 const size_t i_pp = strlen(psz_pp);
1693 return psz_filter &&
1694 !strncmp( psz_filter, psz_pp, strlen(psz_pp) ) &&
1695 ( psz_filter[i_pp] == '\0' || psz_filter[i_pp] == ':' );
1698 static int PostProcessCallback( vlc_object_t *p_this, char const *psz_cmd,
1699 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1701 vout_thread_t *p_vout = (vout_thread_t *)p_this;
1702 VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
1704 static const char *psz_pp = "postproc";
1706 char *psz_vf2 = var_GetString( p_vout, "video-filter" );
1708 if( newval.i_int <= 0 )
1710 if( PostProcessIsPresent( psz_vf2 ) )
1712 strcpy( psz_vf2, &psz_vf2[strlen(psz_pp)] );
1713 if( *psz_vf2 == ':' )
1714 strcpy( psz_vf2, &psz_vf2[1] );
1719 if( !PostProcessIsPresent( psz_vf2 ) )
1723 char *psz_tmp = psz_vf2;
1724 if( asprintf( &psz_vf2, "%s:%s", psz_pp, psz_tmp ) < 0 )
1731 psz_vf2 = strdup( psz_pp );
1737 var_SetString( p_vout, "video-filter", psz_vf2 );
1743 static void PostProcessEnable( vout_thread_t *p_vout )
1745 msg_Dbg( p_vout, "Post-processing available" );
1746 var_Create( p_vout, "postprocess", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
1747 for( int i = 0; i <= 6; i++ )
1754 snprintf( psz_text, sizeof(psz_text), "%d", i );
1756 text.psz_string = _("Disable");
1758 text.psz_string = psz_text;
1759 var_Change( p_vout, "postprocess", VLC_VAR_ADDCHOICE, &val, &text );
1761 var_AddCallback( p_vout, "postprocess", PostProcessCallback, NULL );
1764 char *psz_filter = var_GetNonEmptyString( p_vout, "video-filter" );
1765 int i_postproc_q = 0;
1766 if( PostProcessIsPresent( psz_filter ) )
1767 i_postproc_q = var_CreateGetInteger( p_vout, "postproc-q" );
1769 var_SetInteger( p_vout, "postprocess", i_postproc_q );
1773 static void PostProcessDisable( vout_thread_t *p_vout )
1775 msg_Dbg( p_vout, "Post-processing no more available" );
1776 var_Destroy( p_vout, "postprocess" );
1778 static void PostProcessSetFilterQuality( vout_thread_t *p_vout )
1780 vlc_object_t *p_pp = vlc_object_find_name( p_vout, "postproc", FIND_CHILD );
1784 var_SetInteger( p_pp, "postproc-q", var_GetInteger( p_vout, "postprocess" ) );
1785 vlc_object_release( p_pp );
1789 static void DisplayTitleOnOSD( vout_thread_t *p_vout )
1791 const mtime_t i_start = mdate();
1792 const mtime_t i_stop = i_start + INT64_C(1000) * p_vout->p->i_title_timeout;
1794 if( i_stop <= i_start )
1797 vlc_assert_locked( &p_vout->change_lock );
1799 vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN,
1800 p_vout->p->psz_title, NULL,
1801 p_vout->p->i_title_position,
1802 30 + p_vout->fmt_in.i_width
1803 - p_vout->fmt_in.i_visible_width
1804 - p_vout->fmt_in.i_x_offset,
1805 20 + p_vout->fmt_in.i_y_offset,
1808 free( p_vout->p->psz_title );
1810 p_vout->p->psz_title = NULL;
1813 /*****************************************************************************
1815 *****************************************************************************/
1818 const char *psz_mode;
1819 const char *psz_description;
1821 } deinterlace_mode_t;
1824 * You can use the non vout filter if and only if the video properties stay the
1825 * same (width/height/chroma/fps), at least for now.
1827 static const deinterlace_mode_t p_deinterlace_mode[] = {
1828 { "", "Disable", false },
1829 { "discard", "Discard", true },
1830 { "blend", "Blend", false },
1831 { "mean", "Mean", true },
1832 { "bob", "Bob", true },
1833 { "linear", "Linear", true },
1834 { "x", "X", false },
1835 { NULL, NULL, true }
1838 static char *FilterFind( char *psz_filter_base, const char *psz_module )
1840 const size_t i_module = strlen( psz_module );
1841 const char *psz_filter = psz_filter_base;
1843 if( !psz_filter || i_module <= 0 )
1848 char *psz_find = strstr( psz_filter, psz_module );
1851 if( psz_find[i_module] == '\0' || psz_find[i_module] == ':' )
1853 psz_filter = &psz_find[i_module];
1857 static bool DeinterlaceIsPresent( vout_thread_t *p_vout, bool b_vout_filter )
1859 char *psz_filter = var_GetNonEmptyString( p_vout, b_vout_filter ? "vout-filter" : "video-filter" );
1861 bool b_found = FilterFind( psz_filter, "deinterlace" ) != NULL;
1868 static void DeinterlaceRemove( vout_thread_t *p_vout, bool b_vout_filter )
1870 const char *psz_variable = b_vout_filter ? "vout-filter" : "video-filter";
1871 char *psz_filter = var_GetNonEmptyString( p_vout, psz_variable );
1873 char *psz = FilterFind( psz_filter, "deinterlace" );
1881 strcpy( &psz[0], &psz[strlen("deinterlace")] );
1883 strcpy( &psz[0], &psz[1] );
1885 var_SetString( p_vout, psz_variable, psz_filter );
1888 static void DeinterlaceAdd( vout_thread_t *p_vout, bool b_vout_filter )
1890 const char *psz_variable = b_vout_filter ? "vout-filter" : "video-filter";
1892 char *psz_filter = var_GetNonEmptyString( p_vout, psz_variable );
1894 if( FilterFind( psz_filter, "deinterlace" ) )
1903 char *psz_tmp = psz_filter;
1904 if( asprintf( &psz_filter, "%s:%s", psz_tmp, "deinterlace" ) < 0 )
1905 psz_filter = psz_tmp;
1911 psz_filter = strdup( "deinterlace" );
1916 var_SetString( p_vout, psz_variable, psz_filter );
1921 static int DeinterlaceCallback( vlc_object_t *p_this, char const *psz_cmd,
1922 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1924 vout_thread_t *p_vout = (vout_thread_t *)p_this;
1927 const deinterlace_mode_t *p_mode;
1928 for( p_mode = &p_deinterlace_mode[0]; p_mode->psz_mode; p_mode++ )
1930 if( !strcmp( p_mode->psz_mode, newval.psz_string ?: "" ) )
1933 if( !p_mode->psz_mode )
1935 msg_Err( p_this, "Invalid value (%s) ignored", newval.psz_string );
1936 return VLC_EGENERIC;
1939 /* We have to set input variable to ensure restart support
1940 * XXX it is only needed because of vout-filter but must be done
1941 * for non video filter anyway */
1942 input_thread_t *p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT, FIND_PARENT );
1945 var_Create( p_input, "vout-deinterlace", VLC_VAR_STRING );
1946 var_SetString( p_input, "vout-deinterlace", p_mode->psz_mode );
1948 var_Create( p_input, "deinterlace-mode", VLC_VAR_STRING );
1949 var_SetString( p_input, "deinterlace-mode", p_mode->psz_mode );
1951 var_Create( p_input, "sout-deinterlace-mode", VLC_VAR_STRING );
1952 var_SetString( p_input, "sout-deinterlace-mode", p_mode->psz_mode );
1954 vlc_object_release( p_input );
1959 if( p_mode->b_vout_filter )
1961 psz_old = var_CreateGetString( p_vout, "deinterlace-mode" );
1965 psz_old = var_CreateGetString( p_vout, "sout-deinterlace-mode" );
1966 var_SetString( p_vout, "sout-deinterlace-mode", p_mode->psz_mode );
1970 if( !strcmp( p_mode->psz_mode, "" ) )
1972 DeinterlaceRemove( p_vout, false );
1973 DeinterlaceRemove( p_vout, true );
1975 else if( !DeinterlaceIsPresent( p_vout, p_mode->b_vout_filter ) )
1977 DeinterlaceRemove( p_vout, !p_mode->b_vout_filter );
1978 DeinterlaceAdd( p_vout, p_mode->b_vout_filter );
1982 DeinterlaceRemove( p_vout, !p_mode->b_vout_filter );
1983 if( psz_old && strcmp( psz_old, p_mode->psz_mode ) )
1984 var_TriggerCallback( p_vout, p_mode->b_vout_filter ? "vout-filter" : "video-filter" );
1988 (void)psz_cmd; (void) oldval; (void) p_data;
1992 static void DeinterlaceEnable( vout_thread_t *p_vout )
1994 vlc_value_t val, text;
1996 if( !p_vout->p->b_first_vout )
1999 msg_Dbg( p_vout, "Deinterlacing available" );
2001 /* Create the configuration variable */
2002 var_Create( p_vout, "deinterlace", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
2003 text.psz_string = _("Deinterlace");
2004 var_Change( p_vout, "deinterlace", VLC_VAR_SETTEXT, &text, NULL );
2006 for( int i = 0; p_deinterlace_mode[i].psz_mode; i++ )
2008 val.psz_string = (char*)p_deinterlace_mode[i].psz_mode;
2009 text.psz_string = (char*)vlc_gettext(p_deinterlace_mode[i].psz_description);
2010 var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
2012 var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );
2015 char *psz_mode = NULL;
2016 if( var_Type( p_vout, "vout-deinterlace" ) != 0 )
2017 psz_mode = var_CreateGetNonEmptyString( p_vout, "vout-deinterlace" );
2020 /* Get the initial value */
2021 if( DeinterlaceIsPresent( p_vout, true ) )
2022 psz_mode = var_CreateGetNonEmptyString( p_vout, "deinterlace-mode" );
2023 else if( DeinterlaceIsPresent( p_vout, false ) )
2024 psz_mode = var_CreateGetNonEmptyString( p_vout, "sout-deinterlace-mode" );
2026 var_SetString( p_vout, "deinterlace", psz_mode ?: "" );