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 /*****************************************************************************
220 * vout_Close: Close a vout created by VoutCreate.
221 *****************************************************************************
222 * You HAVE to call it on vout created by VoutCreate before vlc_object_release.
223 * You should NEVER call it on vout not obtained through VoutCreate
224 * (like with vout_Request or vlc_object_find.)
225 * You can use vout_CloseAndRelease() as a convenience method.
226 *****************************************************************************/
227 void vout_Close(vout_thread_t *vout)
232 spu_Attach(vout->p->p_spu, vout->p->input, false);
234 vout_snapshot_End(&vout->p->snapshot);
236 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_CLEAN);
237 vlc_join(vout->p->thread, NULL);
239 vlc_mutex_lock(&vout->p->spu_lock);
240 spu_Destroy(vout->p->p_spu);
241 vout->p->p_spu = NULL;
242 vlc_mutex_unlock(&vout->p->spu_lock);
246 static void VoutDestructor(vlc_object_t *object)
248 vout_thread_t *vout = (vout_thread_t *)object;
250 /* Make sure the vout was stopped first */
251 //assert(!vout->p_module);
253 free(vout->p->splitter_name);
255 /* Destroy the locks */
256 vlc_mutex_destroy(&vout->p->spu_lock);
257 vlc_mutex_destroy(&vout->p->picture_lock);
258 vlc_mutex_destroy(&vout->p->vfilter_lock);
259 vout_control_Clean(&vout->p->control);
262 vout_statistic_Clean(&vout->p->statistic);
265 vout_snapshot_Clean(&vout->p->snapshot);
267 video_format_Clean(&vout->p->original);
271 void vout_ChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
273 vout_control_cmd_t cmd;
274 vout_control_cmd_Init(&cmd, VOUT_CONTROL_PAUSE);
275 cmd.u.pause.is_on = is_paused;
276 cmd.u.pause.date = date;
277 vout_control_Push(&vout->p->control, &cmd);
279 vout_control_WaitEmpty(&vout->p->control);
282 void vout_GetResetStatistic(vout_thread_t *vout, int *displayed, int *lost)
284 vout_statistic_GetReset( &vout->p->statistic, displayed, lost );
287 void vout_Flush(vout_thread_t *vout, mtime_t date)
289 vout_control_PushTime(&vout->p->control, VOUT_CONTROL_FLUSH, date);
290 vout_control_WaitEmpty(&vout->p->control);
293 void vout_Reset(vout_thread_t *vout)
295 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_RESET);
296 vout_control_WaitEmpty(&vout->p->control);
299 bool vout_IsEmpty(vout_thread_t *vout)
301 vlc_mutex_lock(&vout->p->picture_lock);
303 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
305 picture_Release(picture);
307 vlc_mutex_unlock(&vout->p->picture_lock);
312 void vout_FixLeaks( vout_thread_t *vout )
314 vlc_mutex_lock(&vout->p->picture_lock);
316 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
318 picture = picture_pool_Get(vout->p->decoder_pool);
322 picture_Release(picture);
323 /* Not all pictures has been displayed yet or some are
325 vlc_mutex_unlock(&vout->p->picture_lock);
329 /* There is no reason that no pictures are available, force one
330 * from the pool, becarefull with it though */
331 msg_Err(vout, "pictures leaked, trying to workaround");
334 picture_pool_NonEmpty(vout->p->decoder_pool, false);
336 vlc_mutex_unlock(&vout->p->picture_lock);
338 void vout_NextPicture(vout_thread_t *vout, mtime_t *duration)
340 vout_control_cmd_t cmd;
341 vout_control_cmd_Init(&cmd, VOUT_CONTROL_STEP);
342 cmd.u.time_ptr = duration;
344 vout_control_Push(&vout->p->control, &cmd);
345 vout_control_WaitEmpty(&vout->p->control);
348 void vout_DisplayTitle(vout_thread_t *vout, const char *title)
351 vout_control_PushString(&vout->p->control, VOUT_CONTROL_OSD_TITLE, title);
354 void vout_PutSubpicture( vout_thread_t *vout, subpicture_t *subpic )
356 vout_control_cmd_t cmd;
357 vout_control_cmd_Init(&cmd, VOUT_CONTROL_SUBPICTURE);
358 cmd.u.subpicture = subpic;
360 vout_control_Push(&vout->p->control, &cmd);
362 int vout_RegisterSubpictureChannel( vout_thread_t *vout )
364 int channel = SPU_DEFAULT_CHANNEL;
366 vlc_mutex_lock(&vout->p->spu_lock);
368 channel = spu_RegisterChannel(vout->p->p_spu);
369 vlc_mutex_unlock(&vout->p->spu_lock);
373 void vout_FlushSubpictureChannel( vout_thread_t *vout, int channel )
375 vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_FLUSH_SUBPICTURE,
379 /* vout_Control* are usable by anyone at anytime */
380 void vout_ControlChangeFullscreen(vout_thread_t *vout, bool fullscreen)
382 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_FULLSCREEN,
385 void vout_ControlChangeOnTop(vout_thread_t *vout, bool is_on_top)
387 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_ON_TOP,
390 void vout_ControlChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
392 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_DISPLAY_FILLED,
395 void vout_ControlChangeZoom(vout_thread_t *vout, int num, int den)
397 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ZOOM,
400 void vout_ControlChangeSampleAspectRatio(vout_thread_t *vout,
401 unsigned num, unsigned den)
403 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ASPECT_RATIO,
406 void vout_ControlChangeCropRatio(vout_thread_t *vout,
407 unsigned num, unsigned den)
409 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_CROP_RATIO,
412 void vout_ControlChangeCropWindow(vout_thread_t *vout,
413 int x, int y, int width, int height)
415 vout_control_cmd_t cmd;
416 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_WINDOW);
419 cmd.u.window.width = width;
420 cmd.u.window.height = height;
422 vout_control_Push(&vout->p->control, &cmd);
424 void vout_ControlChangeCropBorder(vout_thread_t *vout,
425 int left, int top, int right, int bottom)
427 vout_control_cmd_t cmd;
428 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_BORDER);
429 cmd.u.border.left = left;
430 cmd.u.border.top = top;
431 cmd.u.border.right = right;
432 cmd.u.border.bottom = bottom;
434 vout_control_Push(&vout->p->control, &cmd);
436 void vout_ControlChangeFilters(vout_thread_t *vout, const char *filters)
438 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_FILTERS,
441 void vout_ControlChangeSubFilters(vout_thread_t *vout, const char *filters)
443 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_FILTERS,
448 static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
450 /* Load configuration */
451 cfg->is_fullscreen = var_CreateGetBool(vout, "fullscreen");
452 cfg->display.title = title;
453 const int display_width = var_CreateGetInteger(vout, "width");
454 const int display_height = var_CreateGetInteger(vout, "height");
455 cfg->display.width = display_width > 0 ? display_width : 0;
456 cfg->display.height = display_height > 0 ? display_height : 0;
457 cfg->is_display_filled = var_CreateGetBool(vout, "autoscale");
458 cfg->display.sar.num = 1; /* TODO monitor AR */
459 cfg->display.sar.den = 1;
460 unsigned zoom_den = 1000;
461 unsigned zoom_num = zoom_den * var_CreateGetFloat(vout, "scale");
462 vlc_ureduce(&zoom_num, &zoom_den, zoom_num, zoom_den, 0);
463 cfg->zoom.num = zoom_num;
464 cfg->zoom.den = zoom_den;
465 cfg->align.vertical = VOUT_DISPLAY_ALIGN_CENTER;
466 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_CENTER;
467 const int align_mask = var_CreateGetInteger(vout, "align");
468 if (align_mask & 0x1)
469 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_LEFT;
470 else if (align_mask & 0x2)
471 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_RIGHT;
472 if (align_mask & 0x4)
473 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_TOP;
474 else if (align_mask & 0x8)
475 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_BOTTOM;
478 vout_window_t * vout_NewDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
479 const vout_window_cfg_t *cfg)
482 vout_window_cfg_t cfg_override = *cfg;
484 if (!var_InheritBool( vout, "embedded-video"))
485 cfg_override.is_standalone = true;
487 if (vout->p->window.is_unused && vout->p->window.object) {
488 assert(!vout->p->splitter_name);
489 if (!cfg_override.is_standalone == !vout->p->window.cfg.is_standalone &&
490 cfg_override.type == vout->p->window.cfg.type) {
491 /* Reuse the stored window */
492 msg_Dbg(vout, "Reusing previous vout window");
493 vout_window_t *window = vout->p->window.object;
494 if (cfg_override.width != vout->p->window.cfg.width ||
495 cfg_override.height != vout->p->window.cfg.height)
496 vout_window_SetSize(window,
497 cfg_override.width, cfg_override.height);
498 vout->p->window.is_unused = false;
499 vout->p->window.cfg = cfg_override;
503 vout_window_Delete(vout->p->window.object);
504 vout->p->window.is_unused = true;
505 vout->p->window.object = NULL;
508 vout_window_t *window = vout_window_New(VLC_OBJECT(vout), NULL,
512 if (!vout->p->splitter_name) {
513 vout->p->window.is_unused = false;
514 vout->p->window.cfg = cfg_override;
515 vout->p->window.object = window;
520 void vout_DeleteDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
521 vout_window_t *window)
524 if (!vout->p->window.is_unused && vout->p->window.object == window) {
525 vout->p->window.is_unused = true;
526 } else if (vout->p->window.is_unused && vout->p->window.object && !window) {
527 vout_window_Delete(vout->p->window.object);
528 vout->p->window.is_unused = true;
529 vout->p->window.object = NULL;
531 vout_window_Delete(window);
536 static picture_t *VoutVideoFilterNewPicture(filter_t *filter)
538 vout_thread_t *vout = (vout_thread_t*)filter->p_owner;
539 return picture_pool_Get(vout->p->private_pool);
541 static void VoutVideoFilterDelPicture(filter_t *filter, picture_t *picture)
544 picture_Release(picture);
546 static int VoutVideoFilterAllocationSetup(filter_t *filter, void *data)
548 filter->pf_video_buffer_new = VoutVideoFilterNewPicture;
549 filter->pf_video_buffer_del = VoutVideoFilterDelPicture;
550 filter->p_owner = data; /* vout */
555 static int ThreadDisplayPicture(vout_thread_t *vout,
556 bool now, mtime_t *deadline)
558 vout_display_t *vd = vout->p->display.vd;
559 int displayed_count = 0;
563 const mtime_t date = mdate();
564 const bool is_paused = vout->p->pause.is_on;
565 bool redisplay = is_paused && !now && vout->p->displayed.decoded;
568 /* FIXME/XXX we must redisplay the last decoded picture (because
569 * of potential vout updated, or filters update or SPU update)
570 * For now a high update period is needed but it coulmd be removed
572 * - vout module emits events from theselves.
573 * - *and* SPU is modified to emit an event or a deadline when needed.
575 * So it will be done latter.
578 picture_t *peek = picture_fifo_Peek(vout->p->decoder_fifo);
580 is_forced = peek->b_force || is_paused || now;
581 *deadline = (is_forced ? date : peek->date) - 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);
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;
639 vout_chrono_Start(&vout->p->render);
641 picture_t *filtered = NULL;
643 vlc_mutex_lock(&vout->p->vfilter_lock);
644 filtered = filter_chain_VideoFilter(vout->p->vfilter_chain, decoded);
645 //assert(filtered == decoded); // TODO implement
646 vlc_mutex_unlock(&vout->p->vfilter_lock);
652 * Check for subpictures to display
654 const bool do_snapshot = vout_snapshot_IsRequested(&vout->p->snapshot);
655 mtime_t spu_render_time = is_forced ? mdate() : filtered->date;
656 if (vout->p->pause.is_on)
657 spu_render_time = vout->p->pause.date;
659 spu_render_time = filtered->date > 1 ? filtered->date : mdate();
661 subpicture_t *subpic = spu_SortSubpictures(vout->p->p_spu,
668 * - be sure to end up with a direct buffer.
669 * - blend subtitles, and in a fast access buffer
671 picture_t *direct = NULL;
673 (vout->p->decoder_pool != vout->p->display_pool || subpic)) {
675 if (vout->p->is_decoder_pool_slow)
676 render = picture_NewFromFormat(&vd->source);
677 else if (vout->p->decoder_pool != vout->p->display_pool)
678 render = picture_pool_Get(vout->p->display_pool);
680 render = picture_pool_Get(vout->p->private_pool);
683 picture_Copy(render, filtered);
685 spu_RenderSubpictures(vout->p->p_spu,
687 subpic, &vd->source, spu_render_time);
689 if (vout->p->is_decoder_pool_slow) {
690 direct = picture_pool_Get(vout->p->display_pool);
692 picture_Copy(direct, render);
693 picture_Release(render);
698 picture_Release(filtered);
705 * Take a snapshot if requested
707 if (direct && do_snapshot)
708 vout_snapshot_Set(&vout->p->snapshot, &vd->source, direct);
710 /* Render the direct buffer returned by vout_RenderPicture */
712 vout_RenderWrapper(vout, direct);
714 vout_chrono_Stop(&vout->p->render);
719 msg_Info(vout, "render: avg %d ms var %d ms",
720 (int)(vout->p->render.avg/1000), (int)(vout->p->render.var/1000));
725 /* Wait the real date (for rendering jitter) */
727 mwait(decoded->date);
729 /* Display the direct buffer returned by vout_RenderPicture */
730 vout->p->displayed.date = mdate();
732 vout_DisplayWrapper(vout, direct);
738 vout_statistic_Update(&vout->p->statistic, displayed_count, lost_count);
739 if (displayed_count <= 0)
744 static void ThreadManage(vout_thread_t *vout,
746 vout_interlacing_support_t *interlacing,
747 vout_postprocessing_support_t *postprocessing)
749 vlc_mutex_lock(&vout->p->picture_lock);
751 *deadline = VLC_TS_INVALID;
752 ThreadDisplayPicture(vout, false, deadline);
754 const int picture_qtype = vout->p->displayed.qtype;
755 const bool picture_interlaced = vout->p->displayed.is_interlaced;
757 vlc_mutex_unlock(&vout->p->picture_lock);
759 /* Post processing */
760 vout_SetPostProcessingState(vout, postprocessing, picture_qtype);
763 vout_SetInterlacingState(vout, interlacing, picture_interlaced);
765 vout_ManageWrapper(vout);
768 static void ThreadDisplaySubpicture(vout_thread_t *vout,
769 subpicture_t *subpicture)
771 spu_DisplaySubpicture(vout->p->p_spu, subpicture);
774 static void ThreadFlushSubpicture(vout_thread_t *vout, int channel)
776 spu_ClearChannel(vout->p->p_spu, channel);
779 static void ThreadDisplayOsdTitle(vout_thread_t *vout, const char *string)
781 if (!vout->p->title.show)
784 vout_OSDText(vout, SPU_DEFAULT_CHANNEL,
785 vout->p->title.position, INT64_C(1000) * vout->p->title.timeout,
789 static void ThreadChangeFilters(vout_thread_t *vout, const char *filters)
792 es_format_Init(&fmt, VIDEO_ES, vout->p->original.i_chroma);
793 fmt.video = vout->p->original;
795 vlc_mutex_lock(&vout->p->vfilter_lock);
797 filter_chain_Reset(vout->p->vfilter_chain, &fmt, &fmt);
798 if (filter_chain_AppendFromString(vout->p->vfilter_chain,
800 msg_Err(vout, "Video filter chain creation failed");
802 vlc_mutex_unlock(&vout->p->vfilter_lock);
805 static void ThreadChangeSubFilters(vout_thread_t *vout, const char *filters)
807 spu_ChangeFilters(vout->p->p_spu, filters);
810 static void ThreadChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
812 assert(!vout->p->pause.is_on || !is_paused);
814 if (vout->p->pause.is_on) {
815 const mtime_t duration = date - vout->p->pause.date;
817 if (vout->p->step.timestamp > VLC_TS_INVALID)
818 vout->p->step.timestamp += duration;
819 if (vout->p->step.last > VLC_TS_INVALID)
820 vout->p->step.last += duration;
821 picture_fifo_OffsetDate(vout->p->decoder_fifo, duration);
822 if (vout->p->displayed.decoded)
823 vout->p->displayed.decoded->date += duration;
825 spu_OffsetSubtitleDate(vout->p->p_spu, duration);
827 vout->p->step.timestamp = VLC_TS_INVALID;
828 vout->p->step.last = VLC_TS_INVALID;
830 vout->p->pause.is_on = is_paused;
831 vout->p->pause.date = date;
834 static void ThreadFlush(vout_thread_t *vout, bool below, mtime_t date)
836 vout->p->step.timestamp = VLC_TS_INVALID;
837 vout->p->step.last = VLC_TS_INVALID;
839 picture_t *last = vout->p->displayed.decoded;
841 if (( below && last->date <= date) ||
842 (!below && last->date >= date)) {
843 picture_Release(last);
845 vout->p->displayed.decoded = NULL;
846 vout->p->displayed.date = VLC_TS_INVALID;
847 vout->p->displayed.timestamp = VLC_TS_INVALID;
850 picture_fifo_Flush(vout->p->decoder_fifo, date, below);
853 static void ThreadReset(vout_thread_t *vout)
855 ThreadFlush(vout, true, INT64_MAX);
856 if (vout->p->decoder_pool)
857 picture_pool_NonEmpty(vout->p->decoder_pool, true);
858 vout->p->pause.is_on = false;
859 vout->p->pause.date = mdate();
862 static void ThreadStep(vout_thread_t *vout, mtime_t *duration)
866 if (vout->p->step.last <= VLC_TS_INVALID)
867 vout->p->step.last = vout->p->displayed.timestamp;
870 if (ThreadDisplayPicture(vout, true, &dummy))
873 vout->p->step.timestamp = vout->p->displayed.timestamp;
875 if (vout->p->step.last > VLC_TS_INVALID &&
876 vout->p->step.timestamp > vout->p->step.last) {
877 *duration = vout->p->step.timestamp - vout->p->step.last;
878 vout->p->step.last = vout->p->step.timestamp;
879 /* TODO advance subpicture by the duration ... */
883 static void ThreadChangeFullscreen(vout_thread_t *vout, bool fullscreen)
885 /* FIXME not sure setting "fullscreen" is good ... */
886 var_SetBool(vout, "fullscreen", fullscreen);
887 vout_SetDisplayFullscreen(vout->p->display.vd, fullscreen);
890 static void ThreadChangeOnTop(vout_thread_t *vout, bool is_on_top)
892 vout_SetWindowState(vout->p->display.vd,
893 is_on_top ? VOUT_WINDOW_STATE_ABOVE :
894 VOUT_WINDOW_STATE_NORMAL);
897 static void ThreadChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
899 vout_SetDisplayFilled(vout->p->display.vd, is_filled);
902 static void ThreadChangeZoom(vout_thread_t *vout, int num, int den)
904 if (num * 10 < den) {
907 } else if (num > den * 10) {
911 vout_SetDisplayZoom(vout->p->display.vd, num, den);
914 static void ThreadChangeAspectRatio(vout_thread_t *vout,
915 unsigned num, unsigned den)
917 const video_format_t *source = &vout->p->original;
919 if (num > 0 && den > 0) {
920 num *= source->i_visible_height;
921 den *= source->i_visible_width;
922 vlc_ureduce(&num, &den, num, den, 0);
924 vout_SetDisplayAspect(vout->p->display.vd, num, den);
928 static void ThreadExecuteCropWindow(vout_thread_t *vout,
929 unsigned crop_num, unsigned crop_den,
930 unsigned x, unsigned y,
931 unsigned width, unsigned height)
933 const video_format_t *source = &vout->p->original;
935 vout_SetDisplayCrop(vout->p->display.vd,
937 source->i_x_offset + x,
938 source->i_y_offset + y,
941 static void ThreadExecuteCropBorder(vout_thread_t *vout,
942 unsigned left, unsigned top,
943 unsigned right, unsigned bottom)
945 const video_format_t *source = &vout->p->original;
946 ThreadExecuteCropWindow(vout, 0, 0,
949 /* At worst, it becomes < 0 (but unsigned) and will be rejected */
950 source->i_visible_width - (left + right),
951 source->i_visible_height - (top + bottom));
954 static void ThreadExecuteCropRatio(vout_thread_t *vout,
955 unsigned num, unsigned den)
957 const video_format_t *source = &vout->p->original;
958 ThreadExecuteCropWindow(vout, num, den,
960 source->i_visible_width,
961 source->i_visible_height);
964 static int ThreadStart(vout_thread_t *vout, const vout_display_state_t *state)
966 vlc_mouse_Init(&vout->p->mouse);
967 vout->p->decoder_fifo = picture_fifo_New();
968 vout->p->decoder_pool = NULL;
969 vout->p->display_pool = NULL;
970 vout->p->private_pool = NULL;
972 vout->p->vfilter_chain =
973 filter_chain_New( vout, "video filter2", false,
974 VoutVideoFilterAllocationSetup, NULL, vout);
976 vout_display_state_t state_default;
978 VoutGetDisplayCfg(vout, &state_default.cfg, vout->p->display.title);
979 state_default.wm_state = var_CreateGetBool(vout, "video-on-top") ? VOUT_WINDOW_STATE_ABOVE :
980 VOUT_WINDOW_STATE_NORMAL;
981 state_default.sar.num = 0;
982 state_default.sar.den = 0;
984 state = &state_default;
987 if (vout_OpenWrapper(vout, vout->p->splitter_name, state))
989 if (vout_InitWrapper(vout))
991 assert(vout->p->decoder_pool);
993 vout->p->displayed.decoded = NULL;
994 vout->p->displayed.date = VLC_TS_INVALID;
995 vout->p->displayed.decoded = NULL;
996 vout->p->displayed.timestamp = VLC_TS_INVALID;
997 vout->p->displayed.qtype = QTYPE_NONE;
998 vout->p->displayed.is_interlaced = false;
1000 vout->p->step.last = VLC_TS_INVALID;
1001 vout->p->step.timestamp = VLC_TS_INVALID;
1003 video_format_Print(VLC_OBJECT(vout), "original format", &vout->p->original);
1007 static void ThreadStop(vout_thread_t *vout, vout_display_state_t *state)
1009 /* Destroy the video filters2 */
1010 filter_chain_Delete(vout->p->vfilter_chain);
1012 /* Destroy translation tables */
1013 if (vout->p->display.vd) {
1014 if (vout->p->decoder_pool) {
1015 ThreadFlush(vout, true, INT64_MAX);
1016 vout_EndWrapper(vout);
1018 vout_CloseWrapper(vout, state);
1021 if (vout->p->decoder_fifo)
1022 picture_fifo_Delete(vout->p->decoder_fifo);
1023 assert(!vout->p->decoder_pool);
1026 static void ThreadInit(vout_thread_t *vout)
1028 vout->p->window.is_unused = true;
1029 vout->p->window.object = NULL;
1030 vout->p->dead = false;
1031 vout->p->is_late_dropped = var_InheritBool(vout, "drop-late-frames");
1032 vout->p->pause.is_on = false;
1033 vout->p->pause.date = VLC_TS_INVALID;
1035 vout_chrono_Init(&vout->p->render, 5, 10000); /* Arbitrary initial time */
1038 static void ThreadClean(vout_thread_t *vout)
1040 if (vout->p->window.object) {
1041 assert(vout->p->window.is_unused);
1042 vout_window_Delete(vout->p->window.object);
1044 vout_chrono_Clean(&vout->p->render);
1045 vout->p->dead = true;
1046 vout_control_Dead(&vout->p->control);
1049 static int ThreadReinit(vout_thread_t *vout,
1050 const vout_configuration_t *cfg)
1052 video_format_t original;
1053 if (VoutValidateFormat(&original, cfg->fmt)) {
1054 ThreadStop(vout, NULL);
1056 return VLC_EGENERIC;
1058 if (video_format_IsSimilar(&original, &vout->p->original)) {
1059 if (cfg->dpb_size <= vout->p->dpb_size)
1061 msg_Warn(vout, "DPB need to be increased");
1064 vout_display_state_t state;
1065 memset(&state, 0, sizeof(state));
1067 ThreadStop(vout, &state);
1069 if (!state.cfg.is_fullscreen) {
1070 state.cfg.display.width = 0;
1071 state.cfg.display.height = 0;
1075 /* FIXME current vout "variables" are not in sync here anymore
1076 * and I am not sure what to do */
1078 vout->p->original = original;
1079 vout->p->dpb_size = cfg->dpb_size;
1080 if (ThreadStart(vout, &state)) {
1082 return VLC_EGENERIC;
1087 /*****************************************************************************
1088 * Thread: video output thread
1089 *****************************************************************************
1090 * Video output thread. This function does only returns when the thread is
1091 * terminated. It handles the pictures arriving in the video heap and the
1092 * display device events.
1093 *****************************************************************************/
1094 static void *Thread(void *object)
1096 vout_thread_t *vout = object;
1098 vout_interlacing_support_t interlacing = {
1099 .is_interlaced = false,
1102 vout_postprocessing_support_t postprocessing = {
1103 .qtype = QTYPE_NONE,
1106 mtime_t deadline = VLC_TS_INVALID;
1108 vout_control_cmd_t cmd;
1110 /* FIXME remove thoses ugly timeouts
1112 while (!vout_control_Pop(&vout->p->control, &cmd, deadline, 100000)) {
1114 case VOUT_CONTROL_INIT:
1116 if (ThreadStart(vout, NULL)) {
1117 ThreadStop(vout, NULL);
1122 case VOUT_CONTROL_CLEAN:
1123 ThreadStop(vout, NULL);
1126 case VOUT_CONTROL_REINIT:
1127 if (ThreadReinit(vout, cmd.u.cfg))
1130 case VOUT_CONTROL_SUBPICTURE:
1131 ThreadDisplaySubpicture(vout, cmd.u.subpicture);
1132 cmd.u.subpicture = NULL;
1134 case VOUT_CONTROL_FLUSH_SUBPICTURE:
1135 ThreadFlushSubpicture(vout, cmd.u.integer);
1137 case VOUT_CONTROL_OSD_TITLE:
1138 ThreadDisplayOsdTitle(vout, cmd.u.string);
1140 case VOUT_CONTROL_CHANGE_FILTERS:
1141 ThreadChangeFilters(vout, cmd.u.string);
1143 case VOUT_CONTROL_CHANGE_SUB_FILTERS:
1144 ThreadChangeSubFilters(vout, cmd.u.string);
1146 case VOUT_CONTROL_PAUSE:
1147 ThreadChangePause(vout, cmd.u.pause.is_on, cmd.u.pause.date);
1149 case VOUT_CONTROL_FLUSH:
1150 ThreadFlush(vout, false, cmd.u.time);
1152 case VOUT_CONTROL_RESET:
1155 case VOUT_CONTROL_STEP:
1156 ThreadStep(vout, cmd.u.time_ptr);
1158 case VOUT_CONTROL_FULLSCREEN:
1159 ThreadChangeFullscreen(vout, cmd.u.boolean);
1161 case VOUT_CONTROL_ON_TOP:
1162 ThreadChangeOnTop(vout, cmd.u.boolean);
1164 case VOUT_CONTROL_DISPLAY_FILLED:
1165 ThreadChangeDisplayFilled(vout, cmd.u.boolean);
1167 case VOUT_CONTROL_ZOOM:
1168 ThreadChangeZoom(vout, cmd.u.pair.a, cmd.u.pair.b);
1170 case VOUT_CONTROL_ASPECT_RATIO:
1171 ThreadChangeAspectRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1173 case VOUT_CONTROL_CROP_RATIO:
1174 ThreadExecuteCropRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1176 case VOUT_CONTROL_CROP_WINDOW:
1177 ThreadExecuteCropWindow(vout, 0, 0,
1178 cmd.u.window.x, cmd.u.window.y,
1179 cmd.u.window.width, cmd.u.window.height);
1181 case VOUT_CONTROL_CROP_BORDER:
1182 ThreadExecuteCropBorder(vout,
1183 cmd.u.border.left, cmd.u.border.top,
1184 cmd.u.border.right, cmd.u.border.bottom);
1189 vout_control_cmd_Clean(&cmd);
1192 ThreadManage(vout, &deadline, &interlacing, &postprocessing);