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video_output: reinit the vout if the crop changes
[vlc.git] / src / video_output / video_output.c
blob640d999e803cbd53f353632b95e57da15f009d96
1 /*****************************************************************************
2 * video_output.c : video output thread
3 *
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 VLC authors and VideoLAN
9 * $Id$
10 *
11 * Authors: Vincent Seguin <seguin@via.ecp.fr>
12 * Gildas Bazin <gbazin@videolan.org>
13 * Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
14 *
15 * This program is free software; you can redistribute it and/or modify it
16 * under the terms of the GNU Lesser General Public License as published by
17 * the Free Software Foundation; either version 2.1 of the License, or
18 * (at your option) any later version.
19 *
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU Lesser General Public License for more details.
24 *
25 * You should have received a copy of the GNU Lesser General Public License
26 * along with this program; if not, write to the Free Software Foundation,
27 * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
28 *****************************************************************************/
29
30 /*****************************************************************************
31 * Preamble
32 *****************************************************************************/
33 #ifdef HAVE_CONFIG_H
34 # include "config.h"
35 #endif
36
37 #include <vlc_common.h>
38
39 #include <stdlib.h> /* free() */
40 #include <string.h>
41 #include <assert.h>
42
43 #include <vlc_vout.h>
44
45 #include <vlc_filter.h>
46 #include <vlc_spu.h>
47 #include <vlc_vout_osd.h>
48 #include <vlc_image.h>
49 #include <vlc_plugin.h>
50
51 #include <libvlc.h>
52 #include "vout_internal.h"
53 #include "interlacing.h"
54 #include "display.h"
55 #include "window.h"
56 #include "../misc/variables.h"
57
58 /*****************************************************************************
59 * Local prototypes
60 *****************************************************************************/
61 static void *Thread(void *);
62 static void VoutDestructor(vlc_object_t *);
63
64 /* Maximum delay between 2 displayed pictures.
65 * XXX it is needed for now but should be removed in the long term.
66 */
67 #define VOUT_REDISPLAY_DELAY (INT64_C(80000))
68
69 /**
70 * Late pictures having a delay higher than this value are thrashed.
71 */
72 #define VOUT_DISPLAY_LATE_THRESHOLD (INT64_C(20000))
73
74 /* Better be in advance when awakening than late... */
75 #define VOUT_MWAIT_TOLERANCE (INT64_C(4000))
76
77 /* */
78 static int VoutValidateFormat(video_format_t *dst,
79 const video_format_t *src)
80 {
81 if (src->i_width == 0 || src->i_width > 8192 ||
82 src->i_height == 0 || src->i_height > 8192)
83 return VLC_EGENERIC;
84 if (src->i_sar_num <= 0 || src->i_sar_den <= 0)
85 return VLC_EGENERIC;
86
87 /* */
88 video_format_Copy(dst, src);
89 dst->i_chroma = vlc_fourcc_GetCodec(VIDEO_ES, src->i_chroma);
90 vlc_ureduce( &dst->i_sar_num, &dst->i_sar_den,
91 src->i_sar_num, src->i_sar_den, 50000 );
92 if (dst->i_sar_num <= 0 || dst->i_sar_den <= 0) {
93 dst->i_sar_num = 1;
94 dst->i_sar_den = 1;
95 }
96 video_format_FixRgb(dst);
97 return VLC_SUCCESS;
98 }
99 static void VideoFormatCopyCropAr(video_format_t *dst,
100 const video_format_t *src)
101 {
102 video_format_CopyCrop(dst, src);
103 dst->i_sar_num = src->i_sar_num;
104 dst->i_sar_den = src->i_sar_den;
105 }
106 static bool VideoFormatIsCropArEqual(video_format_t *dst,
107 const video_format_t *src)
108 {
109 return dst->i_sar_num * src->i_sar_den == dst->i_sar_den * src->i_sar_num &&
110 dst->i_x_offset == src->i_x_offset &&
111 dst->i_y_offset == src->i_y_offset &&
112 dst->i_visible_width == src->i_visible_width &&
113 dst->i_visible_height == src->i_visible_height;
114 }
115
116 static vout_thread_t *VoutCreate(vlc_object_t *object,
117 const vout_configuration_t *cfg)
118 {
119 video_format_t original;
120 if (VoutValidateFormat(&original, cfg->fmt))
121 return NULL;
122
123 /* Allocate descriptor */
124 vout_thread_t *vout = vlc_custom_create(object,
125 sizeof(*vout) + sizeof(*vout->p),
126 "video output");
127 if (!vout) {
128 video_format_Clean(&original);
129 return NULL;
130 }
131
132 /* */
133 vout->p = (vout_thread_sys_t*)&vout[1];
134
135 vout->p->original = original;
136 vout->p->dpb_size = cfg->dpb_size;
137
138 vout_control_Init(&vout->p->control);
139 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_INIT);
140
141 vout_statistic_Init(&vout->p->statistic);
142
143 vout_snapshot_Init(&vout->p->snapshot);
144
145 /* Initialize locks */
146 vlc_mutex_init(&vout->p->filter.lock);
147 vlc_mutex_init(&vout->p->spu_lock);
148
149 /* Take care of some "interface/control" related initialisations */
150 vout_IntfInit(vout);
151
152 /* Initialize subpicture unit */
153 vout->p->spu = spu_Create(vout, vout);
154
155 vout->p->title.show = var_InheritBool(vout, "video-title-show");
156 vout->p->title.timeout = var_InheritInteger(vout, "video-title-timeout");
157 vout->p->title.position = var_InheritInteger(vout, "video-title-position");
158
159 /* Get splitter name if present */
160 vout->p->splitter_name = var_InheritString(vout, "video-splitter");
161
162 /* */
163 vout_InitInterlacingSupport(vout, vout->p->displayed.is_interlaced);
164
165 /* Window */
166 if (vout->p->splitter_name == NULL) {
167 vout_window_cfg_t wcfg = {
168 .is_standalone = !var_InheritBool(vout, "embedded-video"),
169 .is_fullscreen = var_GetBool(vout, "fullscreen"),
170 .type = VOUT_WINDOW_TYPE_INVALID,
171 // TODO: take pixel A/R, crop and zoom into account
172 #ifdef __APPLE__
173 .x = var_InheritInteger(vout, "video-x"),
174 .y = var_InheritInteger(vout, "video-y"),
175 #endif
176 .width = cfg->fmt->i_visible_width,
177 .height = cfg->fmt->i_visible_height,
178 };
179
180 vout_window_t *window = vout_display_window_New(vout, &wcfg);
181 if (window != NULL)
182 {
183 if (var_InheritBool(vout, "video-wallpaper"))
184 vout_window_SetState(window, VOUT_WINDOW_STATE_BELOW);
185 else if (var_InheritBool(vout, "video-on-top"))
186 vout_window_SetState(window, VOUT_WINDOW_STATE_ABOVE);
187 }
188 vout->p->window = window;
189 } else
190 vout->p->window = NULL;
191
192 /* */
193 vlc_object_set_destructor(vout, VoutDestructor);
194
195 /* */
196 if (vlc_clone(&vout->p->thread, Thread, vout,
197 VLC_THREAD_PRIORITY_OUTPUT)) {
198 if (vout->p->window != NULL)
199 vout_display_window_Delete(vout->p->window);
200 spu_Destroy(vout->p->spu);
201 vlc_object_release(vout);
202 return NULL;
203 }
204
205 vout_control_WaitEmpty(&vout->p->control);
206
207 if (vout->p->dead) {
208 msg_Err(vout, "video output creation failed");
209 vout_CloseAndRelease(vout);
210 return NULL;
211 }
212
213 vout->p->input = cfg->input;
214 if (vout->p->input)
215 spu_Attach(vout->p->spu, vout->p->input, true);
216
217 return vout;
218 }
219
220 #undef vout_Request
221 vout_thread_t *vout_Request(vlc_object_t *object,
222 const vout_configuration_t *cfg)
223 {
224 vout_thread_t *vout = cfg->vout;
225 if (cfg->change_fmt && !cfg->fmt) {
226 if (vout)
227 vout_CloseAndRelease(vout);
228 return NULL;
229 }
230
231 /* If a vout is provided, try reusing it */
232 if (vout) {
233 if (vout->p->input != cfg->input) {
234 if (vout->p->input)
235 spu_Attach(vout->p->spu, vout->p->input, false);
236 vout->p->input = cfg->input;
237 if (vout->p->input)
238 spu_Attach(vout->p->spu, vout->p->input, true);
239 }
240
241 if (cfg->change_fmt) {
242 vout_control_cmd_t cmd;
243 vout_control_cmd_Init(&cmd, VOUT_CONTROL_REINIT);
244 cmd.u.cfg = cfg;
245
246 vout_control_Push(&vout->p->control, &cmd);
247 vout_control_WaitEmpty(&vout->p->control);
248 vout_IntfReinit(vout);
249 }
250
251 if (!vout->p->dead) {
252 msg_Dbg(object, "reusing provided vout");
253 return vout;
254 }
255 vout_CloseAndRelease(vout);
256
257 msg_Warn(object, "cannot reuse provided vout");
258 }
259 return VoutCreate(object, cfg);
260 }
261
262 void vout_Close(vout_thread_t *vout)
263 {
264 assert(vout);
265
266 if (vout->p->input)
267 spu_Attach(vout->p->spu, vout->p->input, false);
268
269 vout_snapshot_End(&vout->p->snapshot);
270
271 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_CLEAN);
272 vlc_join(vout->p->thread, NULL);
273
274 if (vout->p->window != NULL)
275 vout_display_window_Delete(vout->p->window);
276
277 vlc_mutex_lock(&vout->p->spu_lock);
278 spu_Destroy(vout->p->spu);
279 vout->p->spu = NULL;
280 vlc_mutex_unlock(&vout->p->spu_lock);
281 }
282
283 /* */
284 static void VoutDestructor(vlc_object_t *object)
285 {
286 vout_thread_t *vout = (vout_thread_t *)object;
287
288 /* Make sure the vout was stopped first */
289 //assert(!vout->p_module);
290
291 free(vout->p->splitter_name);
292
293 /* Destroy the locks */
294 vlc_mutex_destroy(&vout->p->spu_lock);
295 vlc_mutex_destroy(&vout->p->filter.lock);
296 vout_control_Clean(&vout->p->control);
297
298 /* */
299 vout_statistic_Clean(&vout->p->statistic);
300
301 /* */
302 vout_snapshot_Clean(&vout->p->snapshot);
303
304 video_format_Clean(&vout->p->original);
305 }
306
307 /* */
308 void vout_Cancel(vout_thread_t *vout, bool canceled)
309 {
310 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_CANCEL, canceled);
311 vout_control_WaitEmpty(&vout->p->control);
312 }
313
314 void vout_ChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
315 {
316 vout_control_cmd_t cmd;
317 vout_control_cmd_Init(&cmd, VOUT_CONTROL_PAUSE);
318 cmd.u.pause.is_on = is_paused;
319 cmd.u.pause.date = date;
320 vout_control_Push(&vout->p->control, &cmd);
321
322 vout_control_WaitEmpty(&vout->p->control);
323 }
324
325 void vout_GetResetStatistic(vout_thread_t *vout, unsigned *restrict displayed,
326 unsigned *restrict lost)
327 {
328 vout_statistic_GetReset( &vout->p->statistic, displayed, lost );
329 }
330
331 void vout_Flush(vout_thread_t *vout, mtime_t date)
332 {
333 vout_control_PushTime(&vout->p->control, VOUT_CONTROL_FLUSH, date);
334 vout_control_WaitEmpty(&vout->p->control);
335 }
336
337 bool vout_IsEmpty(vout_thread_t *vout)
338 {
339 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
340 if (picture)
341 picture_Release(picture);
342
343 return !picture;
344 }
345
346 void vout_NextPicture(vout_thread_t *vout, mtime_t *duration)
347 {
348 vout_control_cmd_t cmd;
349 vout_control_cmd_Init(&cmd, VOUT_CONTROL_STEP);
350 cmd.u.time_ptr = duration;
351
352 vout_control_Push(&vout->p->control, &cmd);
353 vout_control_WaitEmpty(&vout->p->control);
354 }
355
356 void vout_DisplayTitle(vout_thread_t *vout, const char *title)
357 {
358 assert(title);
359 vout_control_PushString(&vout->p->control, VOUT_CONTROL_OSD_TITLE, title);
360 }
361
362 void vout_WindowMouseEvent(vout_thread_t *vout,
363 const vout_window_mouse_event_t *mouse)
364 {
365 assert(mouse);
366 vout_control_cmd_t cmd;
367 vout_control_cmd_Init(&cmd, VOUT_CONTROL_WINDOW_MOUSE);
368 cmd.u.window_mouse = *mouse;
369
370 vout_control_Push(&vout->p->control, &cmd);
371 }
372
373 void vout_PutSubpicture( vout_thread_t *vout, subpicture_t *subpic )
374 {
375 vout_control_cmd_t cmd;
376 vout_control_cmd_Init(&cmd, VOUT_CONTROL_SUBPICTURE);
377 cmd.u.subpicture = subpic;
378
379 vout_control_Push(&vout->p->control, &cmd);
380 }
381 int vout_RegisterSubpictureChannel( vout_thread_t *vout )
382 {
383 int channel = VOUT_SPU_CHANNEL_AVAIL_FIRST;
384
385 vlc_mutex_lock(&vout->p->spu_lock);
386 if (vout->p->spu)
387 channel = spu_RegisterChannel(vout->p->spu);
388 vlc_mutex_unlock(&vout->p->spu_lock);
389
390 return channel;
391 }
392 void vout_FlushSubpictureChannel( vout_thread_t *vout, int channel )
393 {
394 vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_FLUSH_SUBPICTURE,
395 channel);
396 }
397
398 /**
399 * Allocates a video output picture buffer.
400 *
401 * Either vout_PutPicture() or picture_Release() must be used to return the
402 * buffer to the video output free buffer pool.
403 *
404 * You may use picture_Hold() (paired with picture_Release()) to keep a
405 * read-only reference.
406 */
407 picture_t *vout_GetPicture(vout_thread_t *vout)
408 {
409 picture_t *picture = picture_pool_Wait(vout->p->decoder_pool);
410 if (likely(picture != NULL)) {
411 picture_Reset(picture);
412 VideoFormatCopyCropAr(&picture->format, &vout->p->original);
413 }
414 return picture;
415 }
416
417 /**
418 * It gives to the vout a picture to be displayed.
419 *
420 * The given picture MUST comes from vout_GetPicture.
421 *
422 * Becareful, after vout_PutPicture is called, picture_t::p_next cannot be
423 * read/used.
424 */
425 void vout_PutPicture(vout_thread_t *vout, picture_t *picture)
426 {
427 picture->p_next = NULL;
428 if (picture_pool_OwnsPic(vout->p->decoder_pool, picture))
429 {
430 picture_fifo_Push(vout->p->decoder_fifo, picture);
431
432 vout_control_Wake(&vout->p->control);
433 }
434 else
435 {
436 /* FIXME: HACK: Drop this picture because the vout changed. The old
437 * picture pool need to be kept by the new vout. This requires a major
438 * "vout display" API change. */
439 picture_Release(picture);
440 }
441 }
442
443 /* */
444 int vout_GetSnapshot(vout_thread_t *vout,
445 block_t **image_dst, picture_t **picture_dst,
446 video_format_t *fmt,
447 const char *type, mtime_t timeout)
448 {
449 picture_t *picture = vout_snapshot_Get(&vout->p->snapshot, timeout);
450 if (!picture) {
451 msg_Err(vout, "Failed to grab a snapshot");
452 return VLC_EGENERIC;
453 }
454
455 if (image_dst) {
456 vlc_fourcc_t codec = VLC_CODEC_PNG;
457 if (type && image_Type2Fourcc(type))
458 codec = image_Type2Fourcc(type);
459
460 const int override_width = var_InheritInteger(vout, "snapshot-width");
461 const int override_height = var_InheritInteger(vout, "snapshot-height");
462
463 if (picture_Export(VLC_OBJECT(vout), image_dst, fmt,
464 picture, codec, override_width, override_height)) {
465 msg_Err(vout, "Failed to convert image for snapshot");
466 picture_Release(picture);
467 return VLC_EGENERIC;
468 }
469 }
470 if (picture_dst)
471 *picture_dst = picture;
472 else
473 picture_Release(picture);
474 return VLC_SUCCESS;
475 }
476
477 void vout_ChangeAspectRatio( vout_thread_t *p_vout,
478 unsigned int i_num, unsigned int i_den )
479 {
480 vout_ControlChangeSampleAspectRatio( p_vout, i_num, i_den );
481 }
482
483 /* vout_Control* are usable by anyone at anytime */
484 void vout_ControlChangeFullscreen(vout_thread_t *vout, bool fullscreen)
485 {
486 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_FULLSCREEN,
487 fullscreen);
488 }
489 void vout_ControlChangeWindowState(vout_thread_t *vout, unsigned st)
490 {
491 vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_WINDOW_STATE, st);
492 }
493 void vout_ControlChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
494 {
495 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_DISPLAY_FILLED,
496 is_filled);
497 }
498 void vout_ControlChangeZoom(vout_thread_t *vout, int num, int den)
499 {
500 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ZOOM,
501 num, den);
502 }
503 void vout_ControlChangeSampleAspectRatio(vout_thread_t *vout,
504 unsigned num, unsigned den)
505 {
506 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ASPECT_RATIO,
507 num, den);
508 }
509 void vout_ControlChangeCropRatio(vout_thread_t *vout,
510 unsigned num, unsigned den)
511 {
512 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_CROP_RATIO,
513 num, den);
514 }
515 void vout_ControlChangeCropWindow(vout_thread_t *vout,
516 int x, int y, int width, int height)
517 {
518 vout_control_cmd_t cmd;
519 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_WINDOW);
520 cmd.u.window.x = __MAX(x, 0);
521 cmd.u.window.y = __MAX(y, 0);
522 cmd.u.window.width = __MAX(width, 0);
523 cmd.u.window.height = __MAX(height, 0);
524
525 vout_control_Push(&vout->p->control, &cmd);
526 }
527 void vout_ControlChangeCropBorder(vout_thread_t *vout,
528 int left, int top, int right, int bottom)
529 {
530 vout_control_cmd_t cmd;
531 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_BORDER);
532 cmd.u.border.left = __MAX(left, 0);
533 cmd.u.border.top = __MAX(top, 0);
534 cmd.u.border.right = __MAX(right, 0);
535 cmd.u.border.bottom = __MAX(bottom, 0);
536
537 vout_control_Push(&vout->p->control, &cmd);
538 }
539 void vout_ControlChangeFilters(vout_thread_t *vout, const char *filters)
540 {
541 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_FILTERS,
542 filters);
543 }
544 void vout_ControlChangeSubSources(vout_thread_t *vout, const char *filters)
545 {
546 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_SOURCES,
547 filters);
548 }
549 void vout_ControlChangeSubFilters(vout_thread_t *vout, const char *filters)
550 {
551 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_FILTERS,
552 filters);
553 }
554 void vout_ControlChangeSubMargin(vout_thread_t *vout, int margin)
555 {
556 vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_MARGIN,
557 margin);
558 }
559
560 void vout_ControlChangeViewpoint(vout_thread_t *vout,
561 const vlc_viewpoint_t *p_viewpoint)
562 {
563 vout_control_cmd_t cmd;
564 vout_control_cmd_Init(&cmd, VOUT_CONTROL_VIEWPOINT);
565 cmd.u.viewpoint = *p_viewpoint;
566 vout_control_Push(&vout->p->control, &cmd);
567 }
568
569 /* */
570 static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
571 {
572 /* Load configuration */
573 #if defined(_WIN32) || defined(__OS2__)
574 cfg->is_fullscreen = var_GetBool(vout, "fullscreen")
575 || var_GetBool(vout, "video-wallpaper");
576 #endif
577 cfg->viewpoint = vout->p->original.pose;
578
579 cfg->display.title = title;
580 const int display_width = var_GetInteger(vout, "width");
581 const int display_height = var_GetInteger(vout, "height");
582 cfg->display.width = display_width > 0 ? display_width : 0;
583 cfg->display.height = display_height > 0 ? display_height : 0;
584 cfg->is_display_filled = var_GetBool(vout, "autoscale");
585 unsigned msar_num, msar_den;
586 if (var_InheritURational(vout, &msar_num, &msar_den, "monitor-par") ||
587 msar_num <= 0 || msar_den <= 0) {
588 msar_num = 1;
589 msar_den = 1;
590 }
591 cfg->display.sar.num = msar_num;
592 cfg->display.sar.den = msar_den;
593 unsigned zoom_den = 1000;
594 unsigned zoom_num = zoom_den * var_GetFloat(vout, "zoom");
595 vlc_ureduce(&zoom_num, &zoom_den, zoom_num, zoom_den, 0);
596 cfg->zoom.num = zoom_num;
597 cfg->zoom.den = zoom_den;
598 cfg->align.vertical = VOUT_DISPLAY_ALIGN_CENTER;
599 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_CENTER;
600 const int align_mask = var_GetInteger(vout, "align");
601 if (align_mask & 0x1)
602 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_LEFT;
603 else if (align_mask & 0x2)
604 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_RIGHT;
605 if (align_mask & 0x4)
606 cfg->align.vertical = VOUT_DISPLAY_ALIGN_TOP;
607 else if (align_mask & 0x8)
608 cfg->align.vertical = VOUT_DISPLAY_ALIGN_BOTTOM;
609 }
610
611 vout_window_t *vout_NewDisplayWindow(vout_thread_t *vout, unsigned type)
612 {
613 vout_window_t *window = vout->p->window;
614
615 assert(vout->p->splitter_name == NULL);
616
617 if (window == NULL)
618 return NULL;
619 if (type != VOUT_WINDOW_TYPE_INVALID && type != window->type)
620 return NULL;
621 return window;
622 }
623
624 void vout_DeleteDisplayWindow(vout_thread_t *vout, vout_window_t *window)
625 {
626 if (window == NULL && vout->p->window != NULL) {
627 vout_display_window_Delete(vout->p->window);
628 vout->p->window = NULL;
629 }
630 assert(vout->p->window == window);
631 }
632
633 void vout_SetDisplayWindowSize(vout_thread_t *vout,
634 unsigned width, unsigned height)
635 {
636 vout_window_t *window = vout->p->window;
637
638 if (window != NULL)
639 /* Request a resize of the window. If it fails, there is nothing to do.
640 * If it succeeds, the window will emit a resize event later. */
641 vout_window_SetSize(window, width, height);
642 else
643 if (vout->p->display.vd != NULL)
644 /* Force a resize of window-less display. This is not allowed to fail,
645 * although the display is allowed to ignore the size anyway. */
646 /* FIXME: remove this, fix MSW and OS/2 window providers */
647 vout_display_SendEventDisplaySize(vout->p->display.vd, width, height);
648 }
649
650 int vout_HideWindowMouse(vout_thread_t *vout, bool hide)
651 {
652 vout_window_t *window = vout->p->window;
653
654 return window != NULL ? vout_window_HideMouse(window, hide) : VLC_EGENERIC;
655 }
656
657 /* */
658 static int FilterRestartCallback(vlc_object_t *p_this, char const *psz_var,
659 vlc_value_t oldval, vlc_value_t newval,
660 void *p_data)
661 {
662 (void) p_this; (void) psz_var; (void) oldval; (void) newval;
663 vout_ControlChangeFilters((vout_thread_t *)p_data, NULL);
664 return 0;
665 }
666
667 static int ThreadDelFilterCallbacks(filter_t *filter, void *opaque)
668 {
669 filter_DelProxyCallbacks((vlc_object_t *)opaque, filter,
670 FilterRestartCallback);
671 return VLC_SUCCESS;
672 }
673
674 static void ThreadDelAllFilterCallbacks(vout_thread_t *vout)
675 {
676 assert(vout->p->filter.chain_interactive != NULL);
677 filter_chain_ForEach(vout->p->filter.chain_interactive,
678 ThreadDelFilterCallbacks, vout);
679 }
680
681 static picture_t *VoutVideoFilterInteractiveNewPicture(filter_t *filter)
682 {
683 vout_thread_t *vout = filter->owner.sys;
684
685 picture_t *picture = picture_pool_Get(vout->p->private_pool);
686 if (picture) {
687 picture_Reset(picture);
688 VideoFormatCopyCropAr(&picture->format, &filter->fmt_out.video);
689 }
690 return picture;
691 }
692
693 static picture_t *VoutVideoFilterStaticNewPicture(filter_t *filter)
694 {
695 vout_thread_t *vout = filter->owner.sys;
696
697 vlc_assert_locked(&vout->p->filter.lock);
698 if (filter_chain_IsEmpty(vout->p->filter.chain_interactive))
699 return VoutVideoFilterInteractiveNewPicture(filter);
700
701 return picture_NewFromFormat(&filter->fmt_out.video);
702 }
703
704 static void ThreadFilterFlush(vout_thread_t *vout, bool is_locked)
705 {
706 if (vout->p->displayed.current)
707 picture_Release( vout->p->displayed.current );
708 vout->p->displayed.current = NULL;
709
710 if (vout->p->displayed.next)
711 picture_Release( vout->p->displayed.next );
712 vout->p->displayed.next = NULL;
713
714 if (!is_locked)
715 vlc_mutex_lock(&vout->p->filter.lock);
716 filter_chain_VideoFlush(vout->p->filter.chain_static);
717 filter_chain_VideoFlush(vout->p->filter.chain_interactive);
718 if (!is_locked)
719 vlc_mutex_unlock(&vout->p->filter.lock);
720 }
721
722 typedef struct {
723 char *name;
724 config_chain_t *cfg;
725 } vout_filter_t;
726
727 static void ThreadChangeFilters(vout_thread_t *vout,
728 const video_format_t *source,
729 const char *filters,
730 int deinterlace,
731 bool is_locked)
732 {
733 ThreadFilterFlush(vout, is_locked);
734 ThreadDelAllFilterCallbacks(vout);
735
736 vlc_array_t array_static;
737 vlc_array_t array_interactive;
738
739 vlc_array_init(&array_static);
740 vlc_array_init(&array_interactive);
741
742 if ((vout->p->filter.has_deint =
743 deinterlace == 1 || (deinterlace == -1 && vout->p->filter.has_deint)))
744 {
745 vout_filter_t *e = malloc(sizeof(*e));
746
747 if (likely(e))
748 {
749 free(config_ChainCreate(&e->name, &e->cfg, "deinterlace"));
750 vlc_array_append_or_abort(&array_static, e);
751 }
752 }
753
754 char *current = filters ? strdup(filters) : NULL;
755 while (current) {
756 config_chain_t *cfg;
757 char *name;
758 char *next = config_ChainCreate(&name, &cfg, current);
759
760 if (name && *name) {
761 vout_filter_t *e = malloc(sizeof(*e));
762
763 if (likely(e)) {
764 e->name = name;
765 e->cfg = cfg;
766 if (!strcmp(e->name, "postproc"))
767 vlc_array_append_or_abort(&array_static, e);
768 else
769 vlc_array_append_or_abort(&array_interactive, e);
770 }
771 else {
772 if (cfg)
773 config_ChainDestroy(cfg);
774 free(name);
775 }
776 } else {
777 if (cfg)
778 config_ChainDestroy(cfg);
779 free(name);
780 }
781 free(current);
782 current = next;
783 }
784
785 if (!is_locked)
786 vlc_mutex_lock(&vout->p->filter.lock);
787
788 es_format_t fmt_target;
789 es_format_InitFromVideo(&fmt_target, source ? source : &vout->p->filter.format);
790
791 const es_format_t *p_fmt_current = &fmt_target;
792
793 for (int a = 0; a < 2; a++) {
794 vlc_array_t *array = a == 0 ? &array_static :
795 &array_interactive;
796 filter_chain_t *chain = a == 0 ? vout->p->filter.chain_static :
797 vout->p->filter.chain_interactive;
798
799 filter_chain_Reset(chain, p_fmt_current, p_fmt_current);
800 for (size_t i = 0; i < vlc_array_count(array); i++) {
801 vout_filter_t *e = vlc_array_item_at_index(array, i);
802 msg_Dbg(vout, "Adding '%s' as %s", e->name, a == 0 ? "static" : "interactive");
803 filter_t *filter = filter_chain_AppendFilter(chain, e->name, e->cfg,
804 NULL, NULL);
805 if (!filter)
806 {
807 msg_Err(vout, "Failed to add filter '%s'", e->name);
808 config_ChainDestroy(e->cfg);
809 }
810 else if (a == 1) /* Add callbacks for interactive filters */
811 filter_AddProxyCallbacks(vout, filter, FilterRestartCallback);
812
813 free(e->name);
814 free(e);
815 }
816 p_fmt_current = filter_chain_GetFmtOut(chain);
817 vlc_array_clear(array);
818 }
819
820 if (!es_format_IsSimilar(p_fmt_current, &fmt_target)) {
821 msg_Dbg(vout, "Adding a filter to compensate for format changes");
822 if (filter_chain_AppendConverter(vout->p->filter.chain_interactive,
823 p_fmt_current, &fmt_target) != 0) {
824 msg_Err(vout, "Failed to compensate for the format changes, removing all filters");
825 ThreadDelAllFilterCallbacks(vout);
826 filter_chain_Reset(vout->p->filter.chain_static, &fmt_target, &fmt_target);
827 filter_chain_Reset(vout->p->filter.chain_interactive, &fmt_target, &fmt_target);
828 }
829 }
830
831 es_format_Clean(&fmt_target);
832
833 if (vout->p->filter.configuration != filters) {
834 free(vout->p->filter.configuration);
835 vout->p->filter.configuration = filters ? strdup(filters) : NULL;
836 }
837 if (source) {
838 video_format_Clean(&vout->p->filter.format);
839 video_format_Copy(&vout->p->filter.format, source);
840 }
841
842 if (!is_locked)
843 vlc_mutex_unlock(&vout->p->filter.lock);
844 }
845
846
847 /* */
848 static int ThreadDisplayPreparePicture(vout_thread_t *vout, bool reuse, bool frame_by_frame)
849 {
850 bool is_late_dropped = vout->p->is_late_dropped && !vout->p->pause.is_on && !frame_by_frame;
851
852 vlc_mutex_lock(&vout->p->filter.lock);
853
854 picture_t *picture = filter_chain_VideoFilter(vout->p->filter.chain_static, NULL);
855 assert(!reuse || !picture);
856
857 while (!picture) {
858 picture_t *decoded;
859 if (reuse && vout->p->displayed.decoded) {
860 decoded = picture_Hold(vout->p->displayed.decoded);
861 } else {
862 decoded = picture_fifo_Pop(vout->p->decoder_fifo);
863 if (decoded) {
864 if (is_late_dropped && !decoded->b_force) {
865 const mtime_t predicted = mdate() + 0; /* TODO improve */
866 const mtime_t late = predicted - decoded->date;
867 if (late > VOUT_DISPLAY_LATE_THRESHOLD) {
868 msg_Warn(vout, "picture is too late to be displayed (missing %"PRId64" ms)", late/1000);
869 picture_Release(decoded);
870 vout_statistic_AddLost(&vout->p->statistic, 1);
871 continue;
872 } else if (late > 0) {
873 msg_Dbg(vout, "picture might be displayed late (missing %"PRId64" ms)", late/1000);
874 }
875 }
876 if (!VideoFormatIsCropArEqual(&decoded->format, &vout->p->filter.format))
877 ThreadChangeFilters(vout, &decoded->format, vout->p->filter.configuration, -1, true);
878 }
879 }
880
881 if (!decoded)
882 break;
883 reuse = false;
884
885 if (vout->p->displayed.decoded)
886 picture_Release(vout->p->displayed.decoded);
887
888 vout->p->displayed.decoded = picture_Hold(decoded);
889 vout->p->displayed.timestamp = decoded->date;
890 vout->p->displayed.is_interlaced = !decoded->b_progressive;
891
892 picture = filter_chain_VideoFilter(vout->p->filter.chain_static, decoded);
893 }
894
895 vlc_mutex_unlock(&vout->p->filter.lock);
896
897 if (!picture)
898 return VLC_EGENERIC;
899
900 assert(!vout->p->displayed.next);
901 if (!vout->p->displayed.current)
902 vout->p->displayed.current = picture;
903 else
904 vout->p->displayed.next = picture;
905 return VLC_SUCCESS;
906 }
907
908 static int ThreadDisplayRenderPicture(vout_thread_t *vout, bool is_forced)
909 {
910 vout_thread_sys_t *sys = vout->p;
911 vout_display_t *vd = vout->p->display.vd;
912
913 picture_t *torender = picture_Hold(vout->p->displayed.current);
914
915 vout_chrono_Start(&vout->p->render);
916
917 vlc_mutex_lock(&vout->p->filter.lock);
918 picture_t *filtered = filter_chain_VideoFilter(vout->p->filter.chain_interactive, torender);
919 vlc_mutex_unlock(&vout->p->filter.lock);
920
921 if (!filtered)
922 return VLC_EGENERIC;
923
924 if (filtered->date != vout->p->displayed.current->date)
925 msg_Warn(vout, "Unsupported timestamp modifications done by chain_interactive");
926
927 /*
928 * Get the subpicture to be displayed
929 */
930 const bool do_snapshot = vout_snapshot_IsRequested(&vout->p->snapshot);
931 mtime_t render_subtitle_date;
932 if (vout->p->pause.is_on)
933 render_subtitle_date = vout->p->pause.date;
934 else
935 render_subtitle_date = filtered->date > 1 ? filtered->date : mdate();
936 mtime_t render_osd_date = mdate(); /* FIXME wrong */
937
938 /*
939 * Get the subpicture to be displayed
940 */
941 const bool do_dr_spu = !do_snapshot &&
942 vd->info.subpicture_chromas &&
943 *vd->info.subpicture_chromas != 0;
944
945 //FIXME: Denying do_early_spu if vd->source.orientation != ORIENT_NORMAL
946 //will have the effect that snapshots miss the subpictures. We do this
947 //because there is currently no way to transform subpictures to match
948 //the source format.
949 const bool do_early_spu = !do_dr_spu &&
950 vd->source.orientation == ORIENT_NORMAL &&
951 (vd->info.is_slow ||
952 sys->display.use_dr ||
953 do_snapshot ||
954 vd->fmt.i_width * vd->fmt.i_height <= vd->source.i_width * vd->source.i_height);
955
956 const vlc_fourcc_t *subpicture_chromas;
957 video_format_t fmt_spu;
958 if (do_dr_spu) {
959 vout_display_place_t place;
960 vout_display_PlacePicture(&place, &vd->source, vd->cfg, false);
961
962 fmt_spu = vd->source;
963 if (fmt_spu.i_width * fmt_spu.i_height < place.width * place.height) {
964 fmt_spu.i_sar_num = vd->cfg->display.sar.num;
965 fmt_spu.i_sar_den = vd->cfg->display.sar.den;
966 fmt_spu.i_width =
967 fmt_spu.i_visible_width = place.width;
968 fmt_spu.i_height =
969 fmt_spu.i_visible_height = place.height;
970 }
971 subpicture_chromas = vd->info.subpicture_chromas;
972 } else {
973 if (do_early_spu) {
974 fmt_spu = vd->source;
975 } else {
976 fmt_spu = vd->fmt;
977 fmt_spu.i_sar_num = vd->cfg->display.sar.num;
978 fmt_spu.i_sar_den = vd->cfg->display.sar.den;
979 }
980 subpicture_chromas = NULL;
981
982 if (vout->p->spu_blend &&
983 vout->p->spu_blend->fmt_out.video.i_chroma != fmt_spu.i_chroma) {
984 filter_DeleteBlend(vout->p->spu_blend);
985 vout->p->spu_blend = NULL;
986 vout->p->spu_blend_chroma = 0;
987 }
988 if (!vout->p->spu_blend && vout->p->spu_blend_chroma != fmt_spu.i_chroma) {
989 vout->p->spu_blend_chroma = fmt_spu.i_chroma;
990 vout->p->spu_blend = filter_NewBlend(VLC_OBJECT(vout), &fmt_spu);
991 if (!vout->p->spu_blend)
992 msg_Err(vout, "Failed to create blending filter, OSD/Subtitles will not work");
993 }
994 }
995
996 video_format_t fmt_spu_rot;
997 video_format_ApplyRotation(&fmt_spu_rot, &fmt_spu);
998 subpicture_t *subpic = spu_Render(vout->p->spu,
999 subpicture_chromas, &fmt_spu_rot,
1000 &vd->source,
1001 render_subtitle_date, render_osd_date,
1002 do_snapshot);
1003 /*
1004 * Perform rendering
1005 *
1006 * We have to:
1007 * - be sure to end up with a direct buffer.
1008 * - blend subtitles, and in a fast access buffer
1009 */
1010 bool is_direct = vout->p->decoder_pool == vout->p->display_pool;
1011 picture_t *todisplay = filtered;
1012 if (do_early_spu && subpic) {
1013 if (vout->p->spu_blend) {
1014 picture_t *blent = picture_pool_Get(vout->p->private_pool);
1015 if (blent) {
1016 VideoFormatCopyCropAr(&blent->format, &filtered->format);
1017 picture_Copy(blent, filtered);
1018 if (picture_BlendSubpicture(blent, vout->p->spu_blend, subpic)) {
1019 picture_Release(todisplay);
1020 todisplay = blent;
1021 } else
1022 picture_Release(blent);
1023 }
1024 }
1025 subpicture_Delete(subpic);
1026 subpic = NULL;
1027 }
1028
1029 assert(vout_IsDisplayFiltered(vd) == !sys->display.use_dr);
1030 if (sys->display.use_dr && !is_direct) {
1031 picture_t *direct = NULL;
1032 if (likely(vout->p->display_pool != NULL))
1033 direct = picture_pool_Get(vout->p->display_pool);
1034 if (!direct) {
1035 picture_Release(todisplay);
1036 if (subpic)
1037 subpicture_Delete(subpic);
1038 return VLC_EGENERIC;
1039 }
1040
1041 /* The display uses direct rendering (no conversion), but its pool of
1042 * pictures is not usable by the decoder (too few, too slow or
1043 * subject to invalidation...). Since there are no filters, copying
1044 * pictures from the decoder to the output is unavoidable. */
1045 VideoFormatCopyCropAr(&direct->format, &todisplay->format);
1046 picture_Copy(direct, todisplay);
1047 picture_Release(todisplay);
1048 todisplay = direct;
1049 }
1050
1051 /*
1052 * Take a snapshot if requested
1053 */
1054 if (do_snapshot)
1055 vout_snapshot_Set(&vout->p->snapshot, &vd->source, todisplay);
1056
1057 /* Render the direct buffer */
1058 vout_UpdateDisplaySourceProperties(vd, &todisplay->format);
1059
1060 todisplay = vout_FilterDisplay(vd, todisplay);
1061 if (todisplay == NULL) {
1062 if (subpic != NULL)
1063 subpicture_Delete(subpic);
1064 return VLC_EGENERIC;
1065 }
1066
1067 if (sys->display.use_dr) {
1068 vout_display_Prepare(vd, todisplay, subpic);
1069 } else {
1070 if (!do_dr_spu && !do_early_spu && vout->p->spu_blend && subpic)
1071 picture_BlendSubpicture(todisplay, vout->p->spu_blend, subpic);
1072 vout_display_Prepare(vd, todisplay, do_dr_spu ? subpic : NULL);
1073
1074 if (!do_dr_spu && subpic)
1075 {
1076 subpicture_Delete(subpic);
1077 subpic = NULL;
1078 }
1079 }
1080
1081 vout_chrono_Stop(&vout->p->render);
1082 #if 0
1083 {
1084 static int i = 0;
1085 if (((i++)%10) == 0)
1086 msg_Info(vout, "render: avg %d ms var %d ms",
1087 (int)(vout->p->render.avg/1000), (int)(vout->p->render.var/1000));
1088 }
1089 #endif
1090
1091 /* Wait the real date (for rendering jitter) */
1092 #if 0
1093 mtime_t delay = todisplay->date - mdate();
1094 if (delay < 1000)
1095 msg_Warn(vout, "picture is late (%lld ms)", delay / 1000);
1096 #endif
1097 if (!is_forced)
1098 mwait(todisplay->date);
1099
1100 /* Display the direct buffer returned by vout_RenderPicture */
1101 vout->p->displayed.date = mdate();
1102 vout_display_Display(vd, todisplay, subpic);
1103
1104 vout_statistic_AddDisplayed(&vout->p->statistic, 1);
1105
1106 return VLC_SUCCESS;
1107 }
1108
1109 static int ThreadDisplayPicture(vout_thread_t *vout, mtime_t *deadline)
1110 {
1111 bool frame_by_frame = !deadline;
1112 bool paused = vout->p->pause.is_on;
1113 bool first = !vout->p->displayed.current;
1114
1115 if (first)
1116 if (ThreadDisplayPreparePicture(vout, true, frame_by_frame)) /* FIXME not sure it is ok */
1117 return VLC_EGENERIC;
1118
1119 if (!paused || frame_by_frame)
1120 while (!vout->p->displayed.next && !ThreadDisplayPreparePicture(vout, false, frame_by_frame))
1121 ;
1122
1123 const mtime_t date = mdate();
1124 const mtime_t render_delay = vout_chrono_GetHigh(&vout->p->render) + VOUT_MWAIT_TOLERANCE;
1125
1126 bool drop_next_frame = frame_by_frame;
1127 mtime_t date_next = VLC_TS_INVALID;
1128 if (!paused && vout->p->displayed.next) {
1129 date_next = vout->p->displayed.next->date - render_delay;
1130 if (date_next /* + 0 FIXME */ <= date)
1131 drop_next_frame = true;
1132 }
1133
1134 /* FIXME/XXX we must redisplay the last decoded picture (because
1135 * of potential vout updated, or filters update or SPU update)
1136 * For now a high update period is needed but it could be removed
1137 * if and only if:
1138 * - vout module emits events from theselves.
1139 * - *and* SPU is modified to emit an event or a deadline when needed.
1140 *
1141 * So it will be done later.
1142 */
1143 bool refresh = false;
1144
1145 mtime_t date_refresh = VLC_TS_INVALID;
1146 if (vout->p->displayed.date > VLC_TS_INVALID) {
1147 date_refresh = vout->p->displayed.date + VOUT_REDISPLAY_DELAY - render_delay;
1148 refresh = date_refresh <= date;
1149 }
1150 bool force_refresh = !drop_next_frame && refresh;
1151
1152 if (!first && !refresh && !drop_next_frame) {
1153 if (!frame_by_frame) {
1154 if (date_refresh != VLC_TS_INVALID)
1155 *deadline = date_refresh;
1156 if (date_next != VLC_TS_INVALID && date_next < *deadline)
1157 *deadline = date_next;
1158 }
1159 return VLC_EGENERIC;
1160 }
1161
1162 if (drop_next_frame) {
1163 picture_Release(vout->p->displayed.current);
1164 vout->p->displayed.current = vout->p->displayed.next;
1165 vout->p->displayed.next = NULL;
1166 }
1167
1168 if (!vout->p->displayed.current)
1169 return VLC_EGENERIC;
1170
1171 /* display the picture immediately */
1172 bool is_forced = frame_by_frame || force_refresh || vout->p->displayed.current->b_force;
1173 int ret = ThreadDisplayRenderPicture(vout, is_forced);
1174 return force_refresh ? VLC_EGENERIC : ret;
1175 }
1176
1177 static void ThreadDisplaySubpicture(vout_thread_t *vout,
1178 subpicture_t *subpicture)
1179 {
1180 spu_PutSubpicture(vout->p->spu, subpicture);
1181 }
1182
1183 static void ThreadFlushSubpicture(vout_thread_t *vout, int channel)
1184 {
1185 spu_ClearChannel(vout->p->spu, channel);
1186 }
1187
1188 static void ThreadDisplayOsdTitle(vout_thread_t *vout, const char *string)
1189 {
1190 if (!vout->p->title.show)
1191 return;
1192
1193 vout_OSDText(vout, VOUT_SPU_CHANNEL_OSD,
1194 vout->p->title.position, INT64_C(1000) * vout->p->title.timeout,
1195 string);
1196 }
1197
1198 static void ThreadChangeSubSources(vout_thread_t *vout, const char *filters)
1199 {
1200 spu_ChangeSources(vout->p->spu, filters);
1201 }
1202
1203 static void ThreadChangeSubFilters(vout_thread_t *vout, const char *filters)
1204 {
1205 spu_ChangeFilters(vout->p->spu, filters);
1206 }
1207
1208 static void ThreadChangeSubMargin(vout_thread_t *vout, int margin)
1209 {
1210 spu_ChangeMargin(vout->p->spu, margin);
1211 }
1212
1213 static void ThreadChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
1214 {
1215 assert(!vout->p->pause.is_on || !is_paused);
1216
1217 if (vout->p->pause.is_on) {
1218 const mtime_t duration = date - vout->p->pause.date;
1219
1220 if (vout->p->step.timestamp > VLC_TS_INVALID)
1221 vout->p->step.timestamp += duration;
1222 if (vout->p->step.last > VLC_TS_INVALID)
1223 vout->p->step.last += duration;
1224 picture_fifo_OffsetDate(vout->p->decoder_fifo, duration);
1225 if (vout->p->displayed.decoded)
1226 vout->p->displayed.decoded->date += duration;
1227 spu_OffsetSubtitleDate(vout->p->spu, duration);
1228
1229 ThreadFilterFlush(vout, false);
1230 } else {
1231 vout->p->step.timestamp = VLC_TS_INVALID;
1232 vout->p->step.last = VLC_TS_INVALID;
1233 }
1234 vout->p->pause.is_on = is_paused;
1235 vout->p->pause.date = date;
1236
1237 vout_window_t *window = vout->p->window;
1238 if (window != NULL)
1239 vout_window_SetInhibition(window, !is_paused);
1240 }
1241
1242 static void ThreadFlush(vout_thread_t *vout, bool below, mtime_t date)
1243 {
1244 vout->p->step.timestamp = VLC_TS_INVALID;
1245 vout->p->step.last = VLC_TS_INVALID;
1246
1247 ThreadFilterFlush(vout, false); /* FIXME too much */
1248
1249 picture_t *last = vout->p->displayed.decoded;
1250 if (last) {
1251 if (( below && last->date <= date) ||
1252 (!below && last->date >= date)) {
1253 picture_Release(last);
1254
1255 vout->p->displayed.decoded = NULL;
1256 vout->p->displayed.date = VLC_TS_INVALID;
1257 vout->p->displayed.timestamp = VLC_TS_INVALID;
1258 }
1259 }
1260
1261 picture_fifo_Flush(vout->p->decoder_fifo, date, below);
1262 vout_FilterFlush(vout->p->display.vd);
1263 }
1264
1265 static void ThreadStep(vout_thread_t *vout, mtime_t *duration)
1266 {
1267 *duration = 0;
1268
1269 if (vout->p->step.last <= VLC_TS_INVALID)
1270 vout->p->step.last = vout->p->displayed.timestamp;
1271
1272 if (ThreadDisplayPicture(vout, NULL))
1273 return;
1274
1275 vout->p->step.timestamp = vout->p->displayed.timestamp;
1276
1277 if (vout->p->step.last > VLC_TS_INVALID &&
1278 vout->p->step.timestamp > vout->p->step.last) {
1279 *duration = vout->p->step.timestamp - vout->p->step.last;
1280 vout->p->step.last = vout->p->step.timestamp;
1281 /* TODO advance subpicture by the duration ... */
1282 }
1283 }
1284
1285 static void ThreadChangeFullscreen(vout_thread_t *vout, bool fullscreen)
1286 {
1287 vout_window_t *window = vout->p->window;
1288
1289 #if !defined(_WIN32) && !defined(__OS2__)
1290 if (window != NULL)
1291 vout_window_SetFullScreen(window, fullscreen);
1292 #else
1293 bool window_fullscreen = false;
1294 if (window != NULL
1295 && vout_window_SetFullScreen(window, fullscreen) == VLC_SUCCESS)
1296 window_fullscreen = true;
1297 /* FIXME: remove this event */
1298 if (vout->p->display.vd != NULL)
1299 vout_display_SendEventFullscreen(vout->p->display.vd, fullscreen, window_fullscreen);
1300 #endif
1301 }
1302
1303 static void ThreadChangeWindowState(vout_thread_t *vout, unsigned state)
1304 {
1305 vout_window_t *window = vout->p->window;
1306
1307 if (window != NULL)
1308 vout_window_SetState(window, state);
1309 #if defined(_WIN32) || defined(__OS2__)
1310 else /* FIXME: remove this event */
1311 if (vout->p->display.vd != NULL)
1312 vout_display_SendWindowState(vout->p->display.vd, state);
1313 #endif
1314 }
1315
1316 static void ThreadChangeWindowMouse(vout_thread_t *vout,
1317 const vout_window_mouse_event_t *mouse)
1318 {
1319 vout_display_t *vd = vout->p->display.vd;
1320 switch (mouse->type)
1321 {
1322 case VOUT_WINDOW_MOUSE_STATE:
1323 case VOUT_WINDOW_MOUSE_MOVED:
1324 {
1325 vout_display_place_t place;
1326 vout_display_PlacePicture(&place, &vd->source, vd->cfg, false);
1327
1328 if (place.width <= 0 || place.height <= 0)
1329 return;
1330
1331 const int x = vd->source.i_x_offset +
1332 (int64_t)(mouse->x - place.x) *
1333 vd->source.i_visible_width / place.width;
1334 const int y = vd->source.i_y_offset +
1335 (int64_t)(mouse->y - place.y) *
1336 vd->source.i_visible_height/ place.height;
1337
1338 if (mouse->type == VOUT_WINDOW_MOUSE_STATE)
1339 vout_display_SendEventMouseState(vd, x, y, mouse->button_mask);
1340 else
1341 vout_display_SendEventMouseMoved(vd, x, y);
1342 break;
1343 }
1344 case VOUT_WINDOW_MOUSE_PRESSED:
1345 vout_display_SendEventMousePressed(vd, mouse->button_mask);
1346 break;
1347 case VOUT_WINDOW_MOUSE_RELEASED:
1348 vout_display_SendEventMouseReleased(vd, mouse->button_mask);
1349 break;
1350 case VOUT_WINDOW_MOUSE_DOUBLE_CLICK:
1351 if (mouse->button_mask == 0)
1352 vout_display_SendEventMouseDoubleClick(vd);
1353 break;
1354 default: vlc_assert_unreachable();
1355 break;
1356 }
1357 }
1358
1359 static void ThreadChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
1360 {
1361 vout_SetDisplayFilled(vout->p->display.vd, is_filled);
1362 }
1363
1364 static void ThreadChangeZoom(vout_thread_t *vout, int num, int den)
1365 {
1366 if (num * 10 < den) {
1367 num = den;
1368 den *= 10;
1369 } else if (num > den * 10) {
1370 num = den * 10;
1371 }
1372
1373 vout_SetDisplayZoom(vout->p->display.vd, num, den);
1374 }
1375
1376 static void ThreadChangeAspectRatio(vout_thread_t *vout,
1377 unsigned num, unsigned den)
1378 {
1379 vout_SetDisplayAspect(vout->p->display.vd, num, den);
1380 }
1381
1382
1383 static void ThreadExecuteCropWindow(vout_thread_t *vout,
1384 unsigned x, unsigned y,
1385 unsigned width, unsigned height)
1386 {
1387 vout_SetDisplayCrop(vout->p->display.vd, 0, 0,
1388 x, y, width, height);
1389 }
1390 static void ThreadExecuteCropBorder(vout_thread_t *vout,
1391 unsigned left, unsigned top,
1392 unsigned right, unsigned bottom)
1393 {
1394 msg_Err(vout, "ThreadExecuteCropBorder %d.%d %dx%d", left, top, right, bottom);
1395 vout_SetDisplayCrop(vout->p->display.vd, 0, 0,
1396 left, top, -(int)right, -(int)bottom);
1397 }
1398
1399 static void ThreadExecuteCropRatio(vout_thread_t *vout,
1400 unsigned num, unsigned den)
1401 {
1402 vout_SetDisplayCrop(vout->p->display.vd, num, den,
1403 0, 0, 0, 0);
1404 }
1405
1406 static void ThreadExecuteViewpoint(vout_thread_t *vout,
1407 const vlc_viewpoint_t *p_viewpoint)
1408 {
1409 vout_SetDisplayViewpoint(vout->p->display.vd, p_viewpoint);
1410 }
1411
1412 static int ThreadStart(vout_thread_t *vout, vout_display_state_t *state)
1413 {
1414 vlc_mouse_Init(&vout->p->mouse);
1415 vout->p->decoder_fifo = picture_fifo_New();
1416 vout->p->decoder_pool = NULL;
1417 vout->p->display_pool = NULL;
1418 vout->p->private_pool = NULL;
1419
1420 vout->p->filter.configuration = NULL;
1421 video_format_Copy(&vout->p->filter.format, &vout->p->original);
1422
1423 filter_owner_t owner = {
1424 .sys = vout,
1425 .video = {
1426 .buffer_new = VoutVideoFilterStaticNewPicture,
1427 },
1428 };
1429 vout->p->filter.chain_static =
1430 filter_chain_NewVideo( vout, true, &owner );
1431
1432 owner.video.buffer_new = VoutVideoFilterInteractiveNewPicture;
1433 vout->p->filter.chain_interactive =
1434 filter_chain_NewVideo( vout, true, &owner );
1435
1436 vout_display_state_t state_default;
1437 if (!state) {
1438 VoutGetDisplayCfg(vout, &state_default.cfg, vout->p->display.title);
1439
1440 #if defined(_WIN32) || defined(__OS2__)
1441 bool below = var_InheritBool(vout, "video-wallpaper");
1442 bool above = var_InheritBool(vout, "video-on-top");
1443
1444 state_default.wm_state = below ? VOUT_WINDOW_STATE_BELOW
1445 : above ? VOUT_WINDOW_STATE_ABOVE
1446 : VOUT_WINDOW_STATE_NORMAL;
1447 #endif
1448 state_default.sar.num = 0;
1449 state_default.sar.den = 0;
1450
1451 state = &state_default;
1452 }
1453
1454 if (vout_OpenWrapper(vout, vout->p->splitter_name, state))
1455 goto error;
1456 if (vout_InitWrapper(vout))
1457 {
1458 vout_CloseWrapper(vout, state);
1459 goto error;
1460 }
1461 assert(vout->p->decoder_pool && vout->p->private_pool);
1462
1463 vout->p->displayed.current = NULL;
1464 vout->p->displayed.next = NULL;
1465 vout->p->displayed.decoded = NULL;
1466 vout->p->displayed.date = VLC_TS_INVALID;
1467 vout->p->displayed.timestamp = VLC_TS_INVALID;
1468 vout->p->displayed.is_interlaced = false;
1469
1470 vout->p->step.last = VLC_TS_INVALID;
1471 vout->p->step.timestamp = VLC_TS_INVALID;
1472
1473 vout->p->spu_blend_chroma = 0;
1474 vout->p->spu_blend = NULL;
1475
1476 video_format_Print(VLC_OBJECT(vout), "original format", &vout->p->original);
1477 return VLC_SUCCESS;
1478 error:
1479 if (vout->p->filter.chain_interactive != NULL)
1480 {
1481 ThreadDelAllFilterCallbacks(vout);
1482 filter_chain_Delete(vout->p->filter.chain_interactive);
1483 }
1484 if (vout->p->filter.chain_static != NULL)
1485 filter_chain_Delete(vout->p->filter.chain_static);
1486 video_format_Clean(&vout->p->filter.format);
1487 if (vout->p->decoder_fifo != NULL)
1488 picture_fifo_Delete(vout->p->decoder_fifo);
1489 return VLC_EGENERIC;
1490 }
1491
1492 static void ThreadStop(vout_thread_t *vout, vout_display_state_t *state)
1493 {
1494 if (vout->p->spu_blend)
1495 filter_DeleteBlend(vout->p->spu_blend);
1496
1497 /* Destroy translation tables */
1498 if (vout->p->display.vd) {
1499 if (vout->p->decoder_pool) {
1500 ThreadFlush(vout, true, INT64_MAX);
1501 vout_EndWrapper(vout);
1502 }
1503 vout_CloseWrapper(vout, state);
1504 }
1505
1506 /* Destroy the video filters */
1507 ThreadDelAllFilterCallbacks(vout);
1508 filter_chain_Delete(vout->p->filter.chain_interactive);
1509 filter_chain_Delete(vout->p->filter.chain_static);
1510 video_format_Clean(&vout->p->filter.format);
1511 free(vout->p->filter.configuration);
1512
1513 if (vout->p->decoder_fifo)
1514 picture_fifo_Delete(vout->p->decoder_fifo);
1515 assert(!vout->p->decoder_pool);
1516 }
1517
1518 static void ThreadInit(vout_thread_t *vout)
1519 {
1520 vout->p->dead = false;
1521 vout->p->is_late_dropped = var_InheritBool(vout, "drop-late-frames");
1522 vout->p->pause.is_on = false;
1523 vout->p->pause.date = VLC_TS_INVALID;
1524
1525 vout_chrono_Init(&vout->p->render, 5, 10000); /* Arbitrary initial time */
1526 }
1527
1528 static void ThreadClean(vout_thread_t *vout)
1529 {
1530 vout_chrono_Clean(&vout->p->render);
1531 vout->p->dead = true;
1532 vout_control_Dead(&vout->p->control);
1533 }
1534
1535 static int ThreadReinit(vout_thread_t *vout,
1536 const vout_configuration_t *cfg)
1537 {
1538 video_format_t original;
1539
1540 vout->p->pause.is_on = false;
1541 vout->p->pause.date = VLC_TS_INVALID;
1542
1543 if (VoutValidateFormat(&original, cfg->fmt)) {
1544 ThreadStop(vout, NULL);
1545 ThreadClean(vout);
1546 return VLC_EGENERIC;
1547 }
1548
1549 /* We ignore ar changes at this point, they are dynamically supported.
1550 * #19268: don't ignore crop changes (fix vouts using the crop size of the
1551 * previous format). */
1552 vout->p->original.i_sar_num = original.i_sar_num;
1553 vout->p->original.i_sar_den = original.i_sar_den;
1554 if (video_format_IsSimilar(&original, &vout->p->original)) {
1555 if (cfg->dpb_size <= vout->p->dpb_size) {
1556 video_format_Clean(&original);
1557 return VLC_SUCCESS;
1558 }
1559 msg_Warn(vout, "DPB need to be increased");
1560 }
1561
1562 vout_display_state_t state;
1563 memset(&state, 0, sizeof(state));
1564
1565 ThreadStop(vout, &state);
1566
1567 vout_ReinitInterlacingSupport(vout);
1568
1569 #if defined(_WIN32) || defined(__OS2__)
1570 if (!state.cfg.is_fullscreen)
1571 #endif
1572 {
1573 state.cfg.display.width = 0;
1574 state.cfg.display.height = 0;
1575 }
1576 state.sar.num = 0;
1577 state.sar.den = 0;
1578
1579 /* FIXME current vout "variables" are not in sync here anymore
1580 * and I am not sure what to do */
1581 if (state.cfg.display.sar.num <= 0 || state.cfg.display.sar.den <= 0) {
1582 state.cfg.display.sar.num = 1;
1583 state.cfg.display.sar.den = 1;
1584 }
1585 if (state.cfg.zoom.num <= 0 || state.cfg.zoom.den <= 0) {
1586 state.cfg.zoom.num = 1;
1587 state.cfg.zoom.den = 1;
1588 }
1589
1590 vout->p->original = original;
1591 vout->p->dpb_size = cfg->dpb_size;
1592 if (ThreadStart(vout, &state)) {
1593 ThreadClean(vout);
1594 return VLC_EGENERIC;
1595 }
1596 return VLC_SUCCESS;
1597 }
1598
1599 static void ThreadCancel(vout_thread_t *vout, bool canceled)
1600 {
1601 picture_pool_Cancel(vout->p->decoder_pool, canceled);
1602 }
1603
1604 static int ThreadControl(vout_thread_t *vout, vout_control_cmd_t cmd)
1605 {
1606 switch(cmd.type) {
1607 case VOUT_CONTROL_INIT:
1608 ThreadInit(vout);
1609 if (ThreadStart(vout, NULL))
1610 {
1611 ThreadClean(vout);
1612 return 1;
1613 }
1614 break;
1615 case VOUT_CONTROL_CLEAN:
1616 ThreadStop(vout, NULL);
1617 ThreadClean(vout);
1618 return 1;
1619 case VOUT_CONTROL_REINIT:
1620 if (ThreadReinit(vout, cmd.u.cfg))
1621 return 1;
1622 break;
1623 case VOUT_CONTROL_CANCEL:
1624 ThreadCancel(vout, cmd.u.boolean);
1625 break;
1626 case VOUT_CONTROL_SUBPICTURE:
1627 ThreadDisplaySubpicture(vout, cmd.u.subpicture);
1628 cmd.u.subpicture = NULL;
1629 break;
1630 case VOUT_CONTROL_FLUSH_SUBPICTURE:
1631 ThreadFlushSubpicture(vout, cmd.u.integer);
1632 break;
1633 case VOUT_CONTROL_OSD_TITLE:
1634 ThreadDisplayOsdTitle(vout, cmd.u.string);
1635 break;
1636 case VOUT_CONTROL_CHANGE_FILTERS:
1637 ThreadChangeFilters(vout, NULL,
1638 cmd.u.string != NULL ?
1639 cmd.u.string : vout->p->filter.configuration,
1640 -1, false);
1641 break;
1642 case VOUT_CONTROL_CHANGE_INTERLACE:
1643 ThreadChangeFilters(vout, NULL, vout->p->filter.configuration,
1644 cmd.u.boolean ? 1 : 0, false);
1645 break;
1646 case VOUT_CONTROL_CHANGE_SUB_SOURCES:
1647 ThreadChangeSubSources(vout, cmd.u.string);
1648 break;
1649 case VOUT_CONTROL_CHANGE_SUB_FILTERS:
1650 ThreadChangeSubFilters(vout, cmd.u.string);
1651 break;
1652 case VOUT_CONTROL_CHANGE_SUB_MARGIN:
1653 ThreadChangeSubMargin(vout, cmd.u.integer);
1654 break;
1655 case VOUT_CONTROL_PAUSE:
1656 ThreadChangePause(vout, cmd.u.pause.is_on, cmd.u.pause.date);
1657 break;
1658 case VOUT_CONTROL_FLUSH:
1659 ThreadFlush(vout, false, cmd.u.time);
1660 break;
1661 case VOUT_CONTROL_STEP:
1662 ThreadStep(vout, cmd.u.time_ptr);
1663 break;
1664 case VOUT_CONTROL_FULLSCREEN:
1665 ThreadChangeFullscreen(vout, cmd.u.boolean);
1666 break;
1667 case VOUT_CONTROL_WINDOW_STATE:
1668 ThreadChangeWindowState(vout, cmd.u.integer);
1669 break;
1670 case VOUT_CONTROL_WINDOW_MOUSE:
1671 ThreadChangeWindowMouse(vout, &cmd.u.window_mouse);
1672 break;
1673 case VOUT_CONTROL_DISPLAY_FILLED:
1674 ThreadChangeDisplayFilled(vout, cmd.u.boolean);
1675 break;
1676 case VOUT_CONTROL_ZOOM:
1677 ThreadChangeZoom(vout, cmd.u.pair.a, cmd.u.pair.b);
1678 break;
1679 case VOUT_CONTROL_ASPECT_RATIO:
1680 ThreadChangeAspectRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1681 break;
1682 case VOUT_CONTROL_CROP_RATIO:
1683 ThreadExecuteCropRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1684 break;
1685 case VOUT_CONTROL_CROP_WINDOW:
1686 ThreadExecuteCropWindow(vout,
1687 cmd.u.window.x, cmd.u.window.y,
1688 cmd.u.window.width, cmd.u.window.height);
1689 break;
1690 case VOUT_CONTROL_CROP_BORDER:
1691 ThreadExecuteCropBorder(vout,
1692 cmd.u.border.left, cmd.u.border.top,
1693 cmd.u.border.right, cmd.u.border.bottom);
1694 break;
1695 case VOUT_CONTROL_VIEWPOINT:
1696 ThreadExecuteViewpoint(vout, &cmd.u.viewpoint);
1697 break;
1698 default:
1699 break;
1700 }
1701 vout_control_cmd_Clean(&cmd);
1702 return 0;
1703 }
1704
1705 /*****************************************************************************
1706 * Thread: video output thread
1707 *****************************************************************************
1708 * Video output thread. This function does only returns when the thread is
1709 * terminated. It handles the pictures arriving in the video heap and the
1710 * display device events.
1711 *****************************************************************************/
1712 static void *Thread(void *object)
1713 {
1714 vout_thread_t *vout = object;
1715 vout_thread_sys_t *sys = vout->p;
1716
1717 mtime_t deadline = VLC_TS_INVALID;
1718 bool wait = false;
1719 for (;;) {
1720 vout_control_cmd_t cmd;
1721
1722 if (wait)
1723 {
1724 const mtime_t max_deadline = mdate() + 100000;
1725 deadline = deadline <= VLC_TS_INVALID ? max_deadline : __MIN(deadline, max_deadline);
1726 } else {
1727 deadline = VLC_TS_INVALID;
1728 }
1729 while (!vout_control_Pop(&sys->control, &cmd, deadline))
1730 if (ThreadControl(vout, cmd))
1731 return NULL;
1732
1733 deadline = VLC_TS_INVALID;
1734 wait = ThreadDisplayPicture(vout, &deadline) != VLC_SUCCESS;
1735
1736 const bool picture_interlaced = sys->displayed.is_interlaced;
1737
1738 vout_SetInterlacingState(vout, picture_interlaced);
1739 vout_ManageWrapper(vout);
1740 }
1741 }
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