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>
13 * Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
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 General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
28 *****************************************************************************/
30 /*****************************************************************************
32 *****************************************************************************/
37 #include <vlc_common.h>
39 #include <stdlib.h> /* free() */
45 #include <vlc_filter.h>
46 #include <vlc_vout_osd.h>
49 #include "vout_internal.h"
50 #include "interlacing.h"
51 #include "postprocessing.h"
54 /*****************************************************************************
56 *****************************************************************************/
57 static void *Thread(void *);
58 static void VoutDestructor(vlc_object_t *);
60 /* Maximum delay between 2 displayed pictures.
61 * XXX it is needed for now but should be removed in the long term.
63 #define VOUT_REDISPLAY_DELAY (INT64_C(80000))
66 * Late pictures having a delay higher than this value are thrashed.
68 #define VOUT_DISPLAY_LATE_THRESHOLD (INT64_C(20000))
70 /* Better be in advance when awakening than late... */
71 #define VOUT_MWAIT_TOLERANCE (INT64_C(1000))
74 static int VoutValidateFormat(video_format_t *dst,
75 const video_format_t *src)
77 if (src->i_width <= 0 || src->i_height <= 0)
79 if (src->i_sar_num <= 0 || src->i_sar_den <= 0)
83 video_format_Copy(dst, src);
84 dst->i_chroma = vlc_fourcc_GetCodec(VIDEO_ES, src->i_chroma);
85 vlc_ureduce( &dst->i_sar_num, &dst->i_sar_den,
86 src->i_sar_num, src->i_sar_den, 50000 );
87 if (dst->i_sar_num <= 0 || dst->i_sar_den <= 0) {
91 video_format_FixRgb(dst);
95 static vout_thread_t *VoutCreate(vlc_object_t *object,
96 const vout_configuration_t *cfg)
98 video_format_t original;
99 if (VoutValidateFormat(&original, cfg->fmt))
102 /* Allocate descriptor */
103 vout_thread_t *vout = vlc_custom_create(object,
104 sizeof(*vout) + sizeof(*vout->p),
105 VLC_OBJECT_VOUT, "video output");
107 video_format_Clean(&original);
112 vout->p = (vout_thread_sys_t*)&vout[1];
114 vout->p->original = original;
115 vout->p->dpb_size = cfg->dpb_size;
117 vout_control_Init(&vout->p->control);
118 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_INIT);
120 vout_statistic_Init(&vout->p->statistic);
122 vout->p->i_par_den = 1;
124 vout_snapshot_Init(&vout->p->snapshot);
126 /* Initialize locks */
127 vlc_mutex_init(&vout->p->picture_lock);
128 vlc_mutex_init(&vout->p->vfilter_lock);
129 vlc_mutex_init(&vout->p->spu_lock);
131 /* Attach the new object now so we can use var inheritance below */
132 vlc_object_attach(vout, object);
134 /* Initialize subpicture unit */
135 vout->p->p_spu = spu_Create(vout);
137 /* Take care of some "interface/control" related initialisations */
140 /* Get splitter name if present */
141 char *splitter_name = var_GetNonEmptyString(vout, "vout-filter");
143 if (asprintf(&vout->p->splitter_name, "%s,none", splitter_name) < 0)
144 vout->p->splitter_name = NULL;
147 vout->p->splitter_name = NULL;
151 vout_InitInterlacingSupport(vout, vout->p->displayed.is_interlaced);
154 vlc_object_set_destructor(vout, VoutDestructor);
157 if (vlc_clone(&vout->p->thread, Thread, vout,
158 VLC_THREAD_PRIORITY_OUTPUT)) {
159 spu_Destroy(vout->p->p_spu);
160 vlc_object_release(vout);
164 vout_control_WaitEmpty(&vout->p->control);
167 msg_Err(vout, "video output creation failed");
168 vout_CloseAndRelease(vout);
172 vout->p->input = cfg->input;
174 spu_Attach(vout->p->p_spu, vout->p->input, true);
179 vout_thread_t *(vout_Request)(vlc_object_t *object,
180 const vout_configuration_t *cfg)
182 vout_thread_t *vout = cfg->vout;
183 if (cfg->change_fmt && !cfg->fmt) {
185 vout_CloseAndRelease(vout);
189 /* If a vout is provided, try reusing it */
191 if (vout->p->input != cfg->input) {
193 spu_Attach(vout->p->p_spu, vout->p->input, false);
194 vout->p->input = cfg->input;
196 spu_Attach(vout->p->p_spu, vout->p->input, true);
199 if (cfg->change_fmt) {
200 vout_control_cmd_t cmd;
201 vout_control_cmd_Init(&cmd, VOUT_CONTROL_REINIT);
204 vout_control_Push(&vout->p->control, &cmd);
205 vout_control_WaitEmpty(&vout->p->control);
208 if (!vout->p->dead) {
209 msg_Dbg(object, "reusing provided vout");
212 vout_CloseAndRelease(vout);
214 msg_Warn(object, "cannot reuse provided vout");
216 return VoutCreate(object, cfg);
219 void vout_Close(vout_thread_t *vout)
224 spu_Attach(vout->p->p_spu, vout->p->input, false);
226 vout_snapshot_End(&vout->p->snapshot);
228 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_CLEAN);
229 vlc_join(vout->p->thread, NULL);
231 vlc_mutex_lock(&vout->p->spu_lock);
232 spu_Destroy(vout->p->p_spu);
233 vout->p->p_spu = NULL;
234 vlc_mutex_unlock(&vout->p->spu_lock);
238 static void VoutDestructor(vlc_object_t *object)
240 vout_thread_t *vout = (vout_thread_t *)object;
242 /* Make sure the vout was stopped first */
243 //assert(!vout->p_module);
245 free(vout->p->splitter_name);
247 /* Destroy the locks */
248 vlc_mutex_destroy(&vout->p->spu_lock);
249 vlc_mutex_destroy(&vout->p->picture_lock);
250 vlc_mutex_destroy(&vout->p->vfilter_lock);
251 vout_control_Clean(&vout->p->control);
254 vout_statistic_Clean(&vout->p->statistic);
257 vout_snapshot_Clean(&vout->p->snapshot);
259 video_format_Clean(&vout->p->original);
263 void vout_ChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
265 vout_control_cmd_t cmd;
266 vout_control_cmd_Init(&cmd, VOUT_CONTROL_PAUSE);
267 cmd.u.pause.is_on = is_paused;
268 cmd.u.pause.date = date;
269 vout_control_Push(&vout->p->control, &cmd);
271 vout_control_WaitEmpty(&vout->p->control);
274 void vout_GetResetStatistic(vout_thread_t *vout, int *displayed, int *lost)
276 vout_statistic_GetReset( &vout->p->statistic, displayed, lost );
279 void vout_Flush(vout_thread_t *vout, mtime_t date)
281 vout_control_PushTime(&vout->p->control, VOUT_CONTROL_FLUSH, date);
282 vout_control_WaitEmpty(&vout->p->control);
285 void vout_Reset(vout_thread_t *vout)
287 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_RESET);
288 vout_control_WaitEmpty(&vout->p->control);
291 bool vout_IsEmpty(vout_thread_t *vout)
293 vlc_mutex_lock(&vout->p->picture_lock);
295 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
297 picture_Release(picture);
299 vlc_mutex_unlock(&vout->p->picture_lock);
304 void vout_FixLeaks( vout_thread_t *vout )
306 vlc_mutex_lock(&vout->p->picture_lock);
308 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
310 picture = picture_pool_Get(vout->p->decoder_pool);
314 picture_Release(picture);
315 /* Not all pictures has been displayed yet or some are
317 vlc_mutex_unlock(&vout->p->picture_lock);
321 /* There is no reason that no pictures are available, force one
322 * from the pool, becarefull with it though */
323 msg_Err(vout, "pictures leaked, trying to workaround");
326 picture_pool_NonEmpty(vout->p->decoder_pool, false);
328 vlc_mutex_unlock(&vout->p->picture_lock);
330 void vout_NextPicture(vout_thread_t *vout, mtime_t *duration)
332 vout_control_cmd_t cmd;
333 vout_control_cmd_Init(&cmd, VOUT_CONTROL_STEP);
334 cmd.u.time_ptr = duration;
336 vout_control_Push(&vout->p->control, &cmd);
337 vout_control_WaitEmpty(&vout->p->control);
340 void vout_DisplayTitle(vout_thread_t *vout, const char *title)
343 vout_control_PushString(&vout->p->control, VOUT_CONTROL_OSD_TITLE, title);
346 void vout_PutSubpicture( vout_thread_t *vout, subpicture_t *subpic )
348 vout_control_cmd_t cmd;
349 vout_control_cmd_Init(&cmd, VOUT_CONTROL_SUBPICTURE);
350 cmd.u.subpicture = subpic;
352 vout_control_Push(&vout->p->control, &cmd);
354 int vout_RegisterSubpictureChannel( vout_thread_t *vout )
356 int channel = SPU_DEFAULT_CHANNEL;
358 vlc_mutex_lock(&vout->p->spu_lock);
360 channel = spu_RegisterChannel(vout->p->p_spu);
361 vlc_mutex_unlock(&vout->p->spu_lock);
365 void vout_FlushSubpictureChannel( vout_thread_t *vout, int channel )
367 vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_FLUSH_SUBPICTURE,
371 /* vout_Control* are usable by anyone at anytime */
372 void vout_ControlChangeFullscreen(vout_thread_t *vout, bool fullscreen)
374 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_FULLSCREEN,
377 void vout_ControlChangeOnTop(vout_thread_t *vout, bool is_on_top)
379 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_ON_TOP,
382 void vout_ControlChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
384 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_DISPLAY_FILLED,
387 void vout_ControlChangeZoom(vout_thread_t *vout, int num, int den)
389 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ZOOM,
392 void vout_ControlChangeSampleAspectRatio(vout_thread_t *vout,
393 unsigned num, unsigned den)
395 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ASPECT_RATIO,
398 void vout_ControlChangeCropRatio(vout_thread_t *vout,
399 unsigned num, unsigned den)
401 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_CROP_RATIO,
404 void vout_ControlChangeCropWindow(vout_thread_t *vout,
405 int x, int y, int width, int height)
407 vout_control_cmd_t cmd;
408 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_WINDOW);
411 cmd.u.window.width = width;
412 cmd.u.window.height = height;
414 vout_control_Push(&vout->p->control, &cmd);
416 void vout_ControlChangeCropBorder(vout_thread_t *vout,
417 int left, int top, int right, int bottom)
419 vout_control_cmd_t cmd;
420 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_BORDER);
421 cmd.u.border.left = left;
422 cmd.u.border.top = top;
423 cmd.u.border.right = right;
424 cmd.u.border.bottom = bottom;
426 vout_control_Push(&vout->p->control, &cmd);
428 void vout_ControlChangeFilters(vout_thread_t *vout, const char *filters)
430 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_FILTERS,
433 void vout_ControlChangeSubFilters(vout_thread_t *vout, const char *filters)
435 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_FILTERS,
438 void vout_ControlChangeSubMargin(vout_thread_t *vout, int margin)
440 vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_MARGIN,
445 static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
447 /* Load configuration */
448 cfg->is_fullscreen = var_CreateGetBool(vout, "fullscreen");
449 cfg->display.title = title;
450 const int display_width = var_CreateGetInteger(vout, "width");
451 const int display_height = var_CreateGetInteger(vout, "height");
452 cfg->display.width = display_width > 0 ? display_width : 0;
453 cfg->display.height = display_height > 0 ? display_height : 0;
454 cfg->is_display_filled = var_CreateGetBool(vout, "autoscale");
455 cfg->display.sar.num = 1; /* TODO monitor AR */
456 cfg->display.sar.den = 1;
457 unsigned zoom_den = 1000;
458 unsigned zoom_num = zoom_den * var_CreateGetFloat(vout, "scale");
459 vlc_ureduce(&zoom_num, &zoom_den, zoom_num, zoom_den, 0);
460 cfg->zoom.num = zoom_num;
461 cfg->zoom.den = zoom_den;
462 cfg->align.vertical = VOUT_DISPLAY_ALIGN_CENTER;
463 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_CENTER;
464 const int align_mask = var_CreateGetInteger(vout, "align");
465 if (align_mask & 0x1)
466 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_LEFT;
467 else if (align_mask & 0x2)
468 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_RIGHT;
469 if (align_mask & 0x4)
470 cfg->align.vertical = VOUT_DISPLAY_ALIGN_TOP;
471 else if (align_mask & 0x8)
472 cfg->align.vertical = VOUT_DISPLAY_ALIGN_BOTTOM;
475 vout_window_t * vout_NewDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
476 const vout_window_cfg_t *cfg)
479 vout_window_cfg_t cfg_override = *cfg;
481 if (!var_InheritBool( vout, "embedded-video"))
482 cfg_override.is_standalone = true;
484 if (vout->p->window.is_unused && vout->p->window.object) {
485 assert(!vout->p->splitter_name);
486 if (!cfg_override.is_standalone == !vout->p->window.cfg.is_standalone &&
487 cfg_override.type == vout->p->window.cfg.type) {
488 /* Reuse the stored window */
489 msg_Dbg(vout, "Reusing previous vout window");
490 vout_window_t *window = vout->p->window.object;
491 if (cfg_override.width != vout->p->window.cfg.width ||
492 cfg_override.height != vout->p->window.cfg.height)
493 vout_window_SetSize(window,
494 cfg_override.width, cfg_override.height);
495 vout->p->window.is_unused = false;
496 vout->p->window.cfg = cfg_override;
500 vout_window_Delete(vout->p->window.object);
501 vout->p->window.is_unused = true;
502 vout->p->window.object = NULL;
505 vout_window_t *window = vout_window_New(VLC_OBJECT(vout), "$window",
509 if (!vout->p->splitter_name) {
510 vout->p->window.is_unused = false;
511 vout->p->window.cfg = cfg_override;
512 vout->p->window.object = window;
517 void vout_DeleteDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
518 vout_window_t *window)
521 if (!vout->p->window.is_unused && vout->p->window.object == window) {
522 vout->p->window.is_unused = true;
523 } else if (vout->p->window.is_unused && vout->p->window.object && !window) {
524 vout_window_Delete(vout->p->window.object);
525 vout->p->window.is_unused = true;
526 vout->p->window.object = NULL;
528 vout_window_Delete(window);
533 static picture_t *VoutVideoFilterNewPicture(filter_t *filter)
535 vout_thread_t *vout = (vout_thread_t*)filter->p_owner;
536 return picture_pool_Get(vout->p->private_pool);
538 static void VoutVideoFilterDelPicture(filter_t *filter, picture_t *picture)
541 picture_Release(picture);
543 static int VoutVideoFilterAllocationSetup(filter_t *filter, void *data)
545 filter->pf_video_buffer_new = VoutVideoFilterNewPicture;
546 filter->pf_video_buffer_del = VoutVideoFilterDelPicture;
547 filter->p_owner = data; /* vout */
552 static picture_t *ThreadDisplayGetDecodedPicture(vout_thread_t *vout,
553 int *lost_count, bool *is_forced,
554 bool now, mtime_t *deadline)
556 vout_display_t *vd = vout->p->display.vd;
558 const mtime_t date = mdate();
559 const bool is_paused = vout->p->pause.is_on;
560 bool redisplay = is_paused && !now && vout->p->displayed.decoded;
562 mtime_t vfilter_delay = 0;
563 for (int i = 0; i < VOUT_FILTER_DELAYS; i++)
564 vfilter_delay = __MAX(vfilter_delay, vout->p->vfilter_delay[i]);
566 /* FIXME/XXX we must redisplay the last decoded picture (because
567 * of potential vout updated, or filters update or SPU update)
568 * For now a high update period is needed but it coulmd be removed
570 * - vout module emits events from theselves.
571 * - *and* SPU is modified to emit an event or a deadline when needed.
573 * So it will be done latter.
576 picture_t *peek = picture_fifo_Peek(vout->p->decoder_fifo);
578 *is_forced = peek->b_force || is_paused || now;
579 *deadline = (*is_forced ? date : peek->date) -
580 vout_chrono_GetHigh(&vout->p->render) -
582 picture_Release(peek);
588 /* FIXME a better way for this delay is needed */
589 const mtime_t date_update = vout->p->displayed.date + VOUT_REDISPLAY_DELAY;
590 if (date_update > date || !vout->p->displayed.decoded) {
591 *deadline = vout->p->displayed.decoded ? date_update : VLC_TS_INVALID;
596 *deadline = date - vout_chrono_GetHigh(&vout->p->render) - vfilter_delay;
598 if (*deadline > VOUT_MWAIT_TOLERANCE)
599 *deadline -= VOUT_MWAIT_TOLERANCE;
601 /* If we are too early and can wait, do it */
602 if (date < *deadline && !now)
607 decoded = vout->p->displayed.decoded;
608 vout->p->displayed.decoded = NULL;
610 decoded = picture_fifo_Pop(vout->p->decoder_fifo);
612 if (!*is_forced && !vout->p->is_late_dropped) {
613 const mtime_t predicted = date + vout_chrono_GetLow(&vout->p->render);
614 const mtime_t late = predicted - decoded->date;
616 msg_Dbg(vout, "picture might be displayed late (missing %d ms)", (int)(late/1000));
617 if (late > VOUT_DISPLAY_LATE_THRESHOLD) {
618 msg_Warn(vout, "rejected picture because of render time");
620 picture_Release(decoded);
627 vout->p->displayed.is_interlaced = !decoded->b_progressive;
628 vout->p->displayed.qtype = decoded->i_qtype;
630 vout->p->displayed.timestamp = decoded->date;
633 if (vout->p->displayed.decoded)
634 picture_Release(vout->p->displayed.decoded);
635 picture_Hold(decoded);
636 vout->p->displayed.decoded = decoded;
641 static int ThreadDisplayPicture(vout_thread_t *vout,
642 bool now, mtime_t *deadline)
644 vout_display_t *vd = vout->p->display.vd;
645 int displayed_count = 0;
650 picture_t *decoded = ThreadDisplayGetDecodedPicture(vout,
651 &lost_count, &is_forced,
657 vout_chrono_Start(&vout->p->render);
659 picture_t *filtered = NULL;
661 vlc_mutex_lock(&vout->p->vfilter_lock);
662 filtered = filter_chain_VideoFilter(vout->p->vfilter_chain, decoded);
663 //assert(filtered == decoded); // TODO implement
664 vlc_mutex_unlock(&vout->p->vfilter_lock);
667 vout->p->vfilter_delay[vout->p->vfilter_delay_index] = decoded->date - filtered->date;
668 vout->p->vfilter_delay_index = (vout->p->vfilter_delay_index + 1) % VOUT_FILTER_DELAYS;
672 * Check for subpictures to display
674 const bool do_snapshot = vout_snapshot_IsRequested(&vout->p->snapshot);
675 mtime_t spu_render_time = is_forced ? mdate() : filtered->date;
676 if (vout->p->pause.is_on)
677 spu_render_time = vout->p->pause.date;
679 spu_render_time = filtered->date > 1 ? filtered->date : mdate();
681 subpicture_t *subpic = spu_SortSubpictures(vout->p->p_spu,
688 * - be sure to end up with a direct buffer.
689 * - blend subtitles, and in a fast access buffer
691 picture_t *direct = NULL;
693 (vout->p->decoder_pool != vout->p->display_pool || subpic)) {
695 if (vout->p->is_decoder_pool_slow)
696 render = picture_NewFromFormat(&vd->source);
697 else if (vout->p->decoder_pool != vout->p->display_pool)
698 render = picture_pool_Get(vout->p->display_pool);
700 render = picture_pool_Get(vout->p->private_pool);
703 picture_Copy(render, filtered);
705 spu_RenderSubpictures(vout->p->p_spu,
707 subpic, &vd->source, spu_render_time);
709 if (vout->p->is_decoder_pool_slow) {
710 direct = picture_pool_Get(vout->p->display_pool);
712 picture_Copy(direct, render);
713 picture_Release(render);
718 picture_Release(filtered);
725 * Take a snapshot if requested
727 if (direct && do_snapshot)
728 vout_snapshot_Set(&vout->p->snapshot, &vd->source, direct);
730 /* Render the direct buffer returned by vout_RenderPicture */
732 vout_RenderWrapper(vout, direct);
734 vout_chrono_Stop(&vout->p->render);
739 msg_Info(vout, "render: avg %d ms var %d ms",
740 (int)(vout->p->render.avg/1000), (int)(vout->p->render.var/1000));
745 /* Wait the real date (for rendering jitter) */
749 /* Display the direct buffer returned by vout_RenderPicture */
750 vout->p->displayed.date = mdate();
752 vout_DisplayWrapper(vout, direct);
758 vout_statistic_Update(&vout->p->statistic, displayed_count, lost_count);
759 if (displayed_count <= 0)
764 static void ThreadManage(vout_thread_t *vout,
766 vout_interlacing_support_t *interlacing,
767 vout_postprocessing_support_t *postprocessing)
769 vlc_mutex_lock(&vout->p->picture_lock);
771 *deadline = VLC_TS_INVALID;
772 ThreadDisplayPicture(vout, false, deadline);
774 const int picture_qtype = vout->p->displayed.qtype;
775 const bool picture_interlaced = vout->p->displayed.is_interlaced;
777 vlc_mutex_unlock(&vout->p->picture_lock);
779 /* Post processing */
780 vout_SetPostProcessingState(vout, postprocessing, picture_qtype);
783 vout_SetInterlacingState(vout, interlacing, picture_interlaced);
785 vout_ManageWrapper(vout);
788 static void ThreadDisplaySubpicture(vout_thread_t *vout,
789 subpicture_t *subpicture)
791 spu_DisplaySubpicture(vout->p->p_spu, subpicture);
794 static void ThreadFlushSubpicture(vout_thread_t *vout, int channel)
796 spu_ClearChannel(vout->p->p_spu, channel);
799 static void ThreadDisplayOsdTitle(vout_thread_t *vout, const char *string)
801 if (!vout->p->title.show)
804 vout_OSDText(vout, SPU_DEFAULT_CHANNEL,
805 vout->p->title.position, INT64_C(1000) * vout->p->title.timeout,
809 static void ThreadChangeFilters(vout_thread_t *vout, const char *filters)
812 es_format_Init(&fmt, VIDEO_ES, vout->p->original.i_chroma);
813 fmt.video = vout->p->original;
815 vlc_mutex_lock(&vout->p->vfilter_lock);
817 filter_chain_Reset(vout->p->vfilter_chain, &fmt, &fmt);
818 if (filter_chain_AppendFromString(vout->p->vfilter_chain,
820 msg_Err(vout, "Video filter chain creation failed");
822 vlc_mutex_unlock(&vout->p->vfilter_lock);
824 vout->p->vfilter_delay_index = 0;
825 for (int i = 0; i < VOUT_FILTER_DELAYS; i++)
826 vout->p->vfilter_delay[i] = 0;
829 static void ThreadChangeSubFilters(vout_thread_t *vout, const char *filters)
831 spu_ChangeFilters(vout->p->p_spu, filters);
833 static void ThreadChangeSubMargin(vout_thread_t *vout, int margin)
835 spu_ChangeMargin(vout->p->p_spu, margin);
838 static void ThreadFilterFlush(vout_thread_t *vout)
840 vlc_mutex_lock(&vout->p->vfilter_lock);
841 filter_chain_VideoFlush(vout->p->vfilter_chain);
842 vlc_mutex_unlock(&vout->p->vfilter_lock);
845 static void ThreadChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
847 assert(!vout->p->pause.is_on || !is_paused);
849 if (vout->p->pause.is_on) {
850 const mtime_t duration = date - vout->p->pause.date;
852 if (vout->p->step.timestamp > VLC_TS_INVALID)
853 vout->p->step.timestamp += duration;
854 if (vout->p->step.last > VLC_TS_INVALID)
855 vout->p->step.last += duration;
856 picture_fifo_OffsetDate(vout->p->decoder_fifo, duration);
857 if (vout->p->displayed.decoded)
858 vout->p->displayed.decoded->date += duration;
860 spu_OffsetSubtitleDate(vout->p->p_spu, duration);
862 ThreadFilterFlush(vout);
864 vout->p->step.timestamp = VLC_TS_INVALID;
865 vout->p->step.last = VLC_TS_INVALID;
867 vout->p->pause.is_on = is_paused;
868 vout->p->pause.date = date;
871 static void ThreadFlush(vout_thread_t *vout, bool below, mtime_t date)
873 vout->p->step.timestamp = VLC_TS_INVALID;
874 vout->p->step.last = VLC_TS_INVALID;
876 picture_t *last = vout->p->displayed.decoded;
878 if (( below && last->date <= date) ||
879 (!below && last->date >= date)) {
880 picture_Release(last);
882 vout->p->displayed.decoded = NULL;
883 vout->p->displayed.date = VLC_TS_INVALID;
884 vout->p->displayed.timestamp = VLC_TS_INVALID;
887 ThreadFilterFlush(vout);
889 picture_fifo_Flush(vout->p->decoder_fifo, date, below);
892 static void ThreadReset(vout_thread_t *vout)
894 ThreadFlush(vout, true, INT64_MAX);
895 if (vout->p->decoder_pool)
896 picture_pool_NonEmpty(vout->p->decoder_pool, true);
897 vout->p->pause.is_on = false;
898 vout->p->pause.date = mdate();
901 static void ThreadStep(vout_thread_t *vout, mtime_t *duration)
905 if (vout->p->step.last <= VLC_TS_INVALID)
906 vout->p->step.last = vout->p->displayed.timestamp;
909 if (ThreadDisplayPicture(vout, true, &dummy))
912 vout->p->step.timestamp = vout->p->displayed.timestamp;
914 if (vout->p->step.last > VLC_TS_INVALID &&
915 vout->p->step.timestamp > vout->p->step.last) {
916 *duration = vout->p->step.timestamp - vout->p->step.last;
917 vout->p->step.last = vout->p->step.timestamp;
918 /* TODO advance subpicture by the duration ... */
922 static void ThreadChangeFullscreen(vout_thread_t *vout, bool fullscreen)
924 /* FIXME not sure setting "fullscreen" is good ... */
925 var_SetBool(vout, "fullscreen", fullscreen);
926 vout_SetDisplayFullscreen(vout->p->display.vd, fullscreen);
929 static void ThreadChangeOnTop(vout_thread_t *vout, bool is_on_top)
931 vout_SetWindowState(vout->p->display.vd,
932 is_on_top ? VOUT_WINDOW_STATE_ABOVE :
933 VOUT_WINDOW_STATE_NORMAL);
936 static void ThreadChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
938 vout_SetDisplayFilled(vout->p->display.vd, is_filled);
941 static void ThreadChangeZoom(vout_thread_t *vout, int num, int den)
943 if (num * 10 < den) {
946 } else if (num > den * 10) {
950 vout_SetDisplayZoom(vout->p->display.vd, num, den);
953 static void ThreadChangeAspectRatio(vout_thread_t *vout,
954 unsigned num, unsigned den)
956 const video_format_t *source = &vout->p->original;
958 if (num > 0 && den > 0) {
959 num *= source->i_visible_height;
960 den *= source->i_visible_width;
961 vlc_ureduce(&num, &den, num, den, 0);
963 vout_SetDisplayAspect(vout->p->display.vd, num, den);
967 static void ThreadExecuteCropWindow(vout_thread_t *vout,
968 unsigned crop_num, unsigned crop_den,
969 unsigned x, unsigned y,
970 unsigned width, unsigned height)
972 const video_format_t *source = &vout->p->original;
974 vout_SetDisplayCrop(vout->p->display.vd,
976 source->i_x_offset + x,
977 source->i_y_offset + y,
980 static void ThreadExecuteCropBorder(vout_thread_t *vout,
981 unsigned left, unsigned top,
982 unsigned right, unsigned bottom)
984 const video_format_t *source = &vout->p->original;
985 ThreadExecuteCropWindow(vout, 0, 0,
988 /* At worst, it becomes < 0 (but unsigned) and will be rejected */
989 source->i_visible_width - (left + right),
990 source->i_visible_height - (top + bottom));
993 static void ThreadExecuteCropRatio(vout_thread_t *vout,
994 unsigned num, unsigned den)
996 const video_format_t *source = &vout->p->original;
997 ThreadExecuteCropWindow(vout, num, den,
999 source->i_visible_width,
1000 source->i_visible_height);
1003 static int ThreadStart(vout_thread_t *vout, const vout_display_state_t *state)
1005 vlc_mouse_Init(&vout->p->mouse);
1006 vout->p->decoder_fifo = picture_fifo_New();
1007 vout->p->decoder_pool = NULL;
1008 vout->p->display_pool = NULL;
1009 vout->p->private_pool = NULL;
1011 vout->p->vfilter_chain =
1012 filter_chain_New( vout, "video filter2", false,
1013 VoutVideoFilterAllocationSetup, NULL, vout);
1014 vout->p->vfilter_delay_index = 0;
1015 for (int i = 0; i < VOUT_FILTER_DELAYS; i++)
1016 vout->p->vfilter_delay[i] = 0;
1018 vout_display_state_t state_default;
1020 VoutGetDisplayCfg(vout, &state_default.cfg, vout->p->display.title);
1021 state_default.wm_state = var_CreateGetBool(vout, "video-on-top") ? VOUT_WINDOW_STATE_ABOVE :
1022 VOUT_WINDOW_STATE_NORMAL;
1023 state_default.sar.num = 0;
1024 state_default.sar.den = 0;
1026 state = &state_default;
1029 if (vout_OpenWrapper(vout, vout->p->splitter_name, state))
1030 return VLC_EGENERIC;
1031 if (vout_InitWrapper(vout))
1032 return VLC_EGENERIC;
1033 assert(vout->p->decoder_pool);
1035 vout->p->displayed.decoded = NULL;
1036 vout->p->displayed.date = VLC_TS_INVALID;
1037 vout->p->displayed.decoded = NULL;
1038 vout->p->displayed.timestamp = VLC_TS_INVALID;
1039 vout->p->displayed.qtype = QTYPE_NONE;
1040 vout->p->displayed.is_interlaced = false;
1042 vout->p->step.last = VLC_TS_INVALID;
1043 vout->p->step.timestamp = VLC_TS_INVALID;
1045 video_format_Print(VLC_OBJECT(vout), "original format", &vout->p->original);
1049 static void ThreadStop(vout_thread_t *vout, vout_display_state_t *state)
1051 /* Destroy the video filters2 */
1052 filter_chain_Delete(vout->p->vfilter_chain);
1054 /* Destroy translation tables */
1055 if (vout->p->display.vd) {
1056 if (vout->p->decoder_pool) {
1057 ThreadFlush(vout, true, INT64_MAX);
1058 vout_EndWrapper(vout);
1060 vout_CloseWrapper(vout, state);
1063 if (vout->p->decoder_fifo)
1064 picture_fifo_Delete(vout->p->decoder_fifo);
1065 assert(!vout->p->decoder_pool);
1068 static void ThreadInit(vout_thread_t *vout)
1070 vout->p->window.is_unused = true;
1071 vout->p->window.object = NULL;
1072 vout->p->dead = false;
1073 vout->p->is_late_dropped = var_InheritBool(vout, "drop-late-frames");
1074 vout->p->pause.is_on = false;
1075 vout->p->pause.date = VLC_TS_INVALID;
1077 vout_chrono_Init(&vout->p->render, 5, 10000); /* Arbitrary initial time */
1080 static void ThreadClean(vout_thread_t *vout)
1082 if (vout->p->window.object) {
1083 assert(vout->p->window.is_unused);
1084 vout_window_Delete(vout->p->window.object);
1086 vout_chrono_Clean(&vout->p->render);
1087 vout->p->dead = true;
1088 vout_control_Dead(&vout->p->control);
1091 static int ThreadReinit(vout_thread_t *vout,
1092 const vout_configuration_t *cfg)
1094 video_format_t original;
1095 if (VoutValidateFormat(&original, cfg->fmt)) {
1096 ThreadStop(vout, NULL);
1098 return VLC_EGENERIC;
1100 if (video_format_IsSimilar(&original, &vout->p->original)) {
1101 if (cfg->dpb_size <= vout->p->dpb_size)
1103 msg_Warn(vout, "DPB need to be increased");
1106 vout_display_state_t state;
1107 memset(&state, 0, sizeof(state));
1109 ThreadStop(vout, &state);
1111 if (!state.cfg.is_fullscreen) {
1112 state.cfg.display.width = 0;
1113 state.cfg.display.height = 0;
1117 /* FIXME current vout "variables" are not in sync here anymore
1118 * and I am not sure what to do */
1120 vout->p->original = original;
1121 vout->p->dpb_size = cfg->dpb_size;
1122 if (ThreadStart(vout, &state)) {
1124 return VLC_EGENERIC;
1129 /*****************************************************************************
1130 * Thread: video output thread
1131 *****************************************************************************
1132 * Video output thread. This function does only returns when the thread is
1133 * terminated. It handles the pictures arriving in the video heap and the
1134 * display device events.
1135 *****************************************************************************/
1136 static void *Thread(void *object)
1138 vout_thread_t *vout = object;
1140 vout_interlacing_support_t interlacing = {
1141 .is_interlaced = false,
1144 vout_postprocessing_support_t postprocessing = {
1145 .qtype = QTYPE_NONE,
1148 mtime_t deadline = VLC_TS_INVALID;
1150 vout_control_cmd_t cmd;
1152 /* FIXME remove thoses ugly timeouts
1154 while (!vout_control_Pop(&vout->p->control, &cmd, deadline, 100000)) {
1156 case VOUT_CONTROL_INIT:
1158 if (ThreadStart(vout, NULL)) {
1159 ThreadStop(vout, NULL);
1164 case VOUT_CONTROL_CLEAN:
1165 ThreadStop(vout, NULL);
1168 case VOUT_CONTROL_REINIT:
1169 if (ThreadReinit(vout, cmd.u.cfg))
1172 case VOUT_CONTROL_SUBPICTURE:
1173 ThreadDisplaySubpicture(vout, cmd.u.subpicture);
1174 cmd.u.subpicture = NULL;
1176 case VOUT_CONTROL_FLUSH_SUBPICTURE:
1177 ThreadFlushSubpicture(vout, cmd.u.integer);
1179 case VOUT_CONTROL_OSD_TITLE:
1180 ThreadDisplayOsdTitle(vout, cmd.u.string);
1182 case VOUT_CONTROL_CHANGE_FILTERS:
1183 ThreadChangeFilters(vout, cmd.u.string);
1185 case VOUT_CONTROL_CHANGE_SUB_FILTERS:
1186 ThreadChangeSubFilters(vout, cmd.u.string);
1188 case VOUT_CONTROL_CHANGE_SUB_MARGIN:
1189 ThreadChangeSubMargin(vout, cmd.u.integer);
1191 case VOUT_CONTROL_PAUSE:
1192 ThreadChangePause(vout, cmd.u.pause.is_on, cmd.u.pause.date);
1194 case VOUT_CONTROL_FLUSH:
1195 ThreadFlush(vout, false, cmd.u.time);
1197 case VOUT_CONTROL_RESET:
1200 case VOUT_CONTROL_STEP:
1201 ThreadStep(vout, cmd.u.time_ptr);
1203 case VOUT_CONTROL_FULLSCREEN:
1204 ThreadChangeFullscreen(vout, cmd.u.boolean);
1206 case VOUT_CONTROL_ON_TOP:
1207 ThreadChangeOnTop(vout, cmd.u.boolean);
1209 case VOUT_CONTROL_DISPLAY_FILLED:
1210 ThreadChangeDisplayFilled(vout, cmd.u.boolean);
1212 case VOUT_CONTROL_ZOOM:
1213 ThreadChangeZoom(vout, cmd.u.pair.a, cmd.u.pair.b);
1215 case VOUT_CONTROL_ASPECT_RATIO:
1216 ThreadChangeAspectRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1218 case VOUT_CONTROL_CROP_RATIO:
1219 ThreadExecuteCropRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1221 case VOUT_CONTROL_CROP_WINDOW:
1222 ThreadExecuteCropWindow(vout, 0, 0,
1223 cmd.u.window.x, cmd.u.window.y,
1224 cmd.u.window.width, cmd.u.window.height);
1226 case VOUT_CONTROL_CROP_BORDER:
1227 ThreadExecuteCropBorder(vout,
1228 cmd.u.border.left, cmd.u.border.top,
1229 cmd.u.border.right, cmd.u.border.bottom);
1234 vout_control_cmd_Clean(&cmd);
1237 ThreadManage(vout, &deadline, &interlacing, &postprocessing);