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);
130 /* Attach the new object now so we can use var inheritance below */
131 vlc_object_attach(vout, object);
133 /* Initialize subpicture unit */
134 vout->p->p_spu = spu_Create(vout);
136 /* Take care of some "interface/control" related initialisations */
139 /* Get splitter name if present */
140 char *splitter_name = var_GetNonEmptyString(vout, "vout-filter");
142 if (asprintf(&vout->p->splitter_name, "%s,none", splitter_name) < 0)
143 vout->p->splitter_name = NULL;
146 vout->p->splitter_name = NULL;
150 vout_InitInterlacingSupport(vout, vout->p->displayed.is_interlaced);
153 vlc_object_set_destructor(vout, VoutDestructor);
156 if (vlc_clone(&vout->p->thread, Thread, vout,
157 VLC_THREAD_PRIORITY_OUTPUT)) {
158 vlc_object_release(vout);
162 vout_control_WaitEmpty(&vout->p->control);
165 msg_Err(vout, "video output creation failed");
166 vout_CloseAndRelease(vout);
170 vout->p->input = cfg->input;
172 spu_Attach(vout->p->p_spu, vout->p->input, true);
177 vout_thread_t *(vout_Request)(vlc_object_t *object,
178 const vout_configuration_t *cfg)
180 vout_thread_t *vout = cfg->vout;
183 vout_CloseAndRelease(vout);
187 /* If a vout is provided, try reusing it */
189 vlc_object_detach(vout);
190 vlc_object_attach(vout, object);
192 if (vout->p->input != cfg->input) {
194 spu_Attach(vout->p->p_spu, vout->p->input, false);
195 vout->p->input = cfg->input;
197 spu_Attach(vout->p->p_spu, vout->p->input, true);
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);
206 if (!vout->p->dead) {
207 msg_Dbg(object, "reusing provided vout");
210 vout_CloseAndRelease(vout);
212 msg_Warn(object, "cannot reuse provided vout");
214 return VoutCreate(object, cfg);
217 /*****************************************************************************
218 * vout_Close: Close a vout created by VoutCreate.
219 *****************************************************************************
220 * You HAVE to call it on vout created by VoutCreate before vlc_object_release.
221 * You should NEVER call it on vout not obtained through VoutCreate
222 * (like with vout_Request or vlc_object_find.)
223 * You can use vout_CloseAndRelease() as a convenience method.
224 *****************************************************************************/
225 void vout_Close(vout_thread_t *vout)
230 spu_Attach(vout->p->p_spu, vout->p->input, false);
231 vlc_object_detach(vout->p->p_spu);
233 vout_snapshot_End(&vout->p->snapshot);
235 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_CLEAN);
236 vlc_join(vout->p->thread, NULL);
240 static void VoutDestructor(vlc_object_t *object)
242 vout_thread_t *vout = (vout_thread_t *)object;
244 /* Make sure the vout was stopped first */
245 //assert(!vout->p_module);
247 free(vout->p->splitter_name);
250 spu_Destroy(vout->p->p_spu);
252 /* Destroy the locks */
253 vlc_mutex_destroy(&vout->p->picture_lock);
254 vlc_mutex_destroy(&vout->p->vfilter_lock);
255 vout_control_Clean(&vout->p->control);
258 vout_statistic_Clean(&vout->p->statistic);
261 vout_snapshot_Clean(&vout->p->snapshot);
263 video_format_Clean(&vout->p->original);
267 void vout_ChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
269 vout_control_cmd_t cmd;
270 vout_control_cmd_Init(&cmd, VOUT_CONTROL_PAUSE);
271 cmd.u.pause.is_on = is_paused;
272 cmd.u.pause.date = date;
273 vout_control_Push(&vout->p->control, &cmd);
275 vout_control_WaitEmpty(&vout->p->control);
278 void vout_GetResetStatistic(vout_thread_t *vout, int *displayed, int *lost)
280 vout_statistic_GetReset( &vout->p->statistic, displayed, lost );
283 void vout_Flush(vout_thread_t *vout, mtime_t date)
285 vout_control_PushTime(&vout->p->control, VOUT_CONTROL_FLUSH, date);
286 vout_control_WaitEmpty(&vout->p->control);
289 void vout_Reset(vout_thread_t *vout)
291 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_RESET);
292 vout_control_WaitEmpty(&vout->p->control);
295 bool vout_IsEmpty(vout_thread_t *vout)
297 vlc_mutex_lock(&vout->p->picture_lock);
299 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
301 picture_Release(picture);
303 vlc_mutex_unlock(&vout->p->picture_lock);
308 void vout_FixLeaks( vout_thread_t *vout )
310 vlc_mutex_lock(&vout->p->picture_lock);
312 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
314 picture = picture_pool_Get(vout->p->decoder_pool);
318 picture_Release(picture);
319 /* Not all pictures has been displayed yet or some are
321 vlc_mutex_unlock(&vout->p->picture_lock);
325 /* There is no reason that no pictures are available, force one
326 * from the pool, becarefull with it though */
327 msg_Err(vout, "pictures leaked, trying to workaround");
330 picture_pool_NonEmpty(vout->p->decoder_pool, false);
332 vlc_mutex_unlock(&vout->p->picture_lock);
334 void vout_NextPicture(vout_thread_t *vout, mtime_t *duration)
336 vout_control_cmd_t cmd;
337 vout_control_cmd_Init(&cmd, VOUT_CONTROL_STEP);
338 cmd.u.time_ptr = duration;
340 vout_control_Push(&vout->p->control, &cmd);
341 vout_control_WaitEmpty(&vout->p->control);
344 void vout_DisplayTitle(vout_thread_t *vout, const char *title)
347 vout_control_PushString(&vout->p->control, VOUT_CONTROL_OSD_TITLE, title);
350 void vout_PutSubpicture( vout_thread_t *vout, subpicture_t *subpic )
352 spu_DisplaySubpicture(vout->p->p_spu, subpic);
354 int vout_RegisterSubpictureChannel( vout_thread_t *vout )
356 return spu_RegisterChannel(vout->p->p_spu);
358 void vout_FlushSubpictureChannel( vout_thread_t *vout, int channel )
360 spu_ClearChannel(vout->p->p_spu, channel);
363 /* vout_Control* are usable by anyone at anytime */
364 void vout_ControlChangeFullscreen(vout_thread_t *vout, bool fullscreen)
366 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_FULLSCREEN,
369 void vout_ControlChangeOnTop(vout_thread_t *vout, bool is_on_top)
371 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_ON_TOP,
374 void vout_ControlChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
376 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_DISPLAY_FILLED,
379 void vout_ControlChangeZoom(vout_thread_t *vout, int num, int den)
381 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ZOOM,
384 void vout_ControlChangeSampleAspectRatio(vout_thread_t *vout,
385 unsigned num, unsigned den)
387 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ASPECT_RATIO,
390 void vout_ControlChangeCropRatio(vout_thread_t *vout,
391 unsigned num, unsigned den)
393 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_CROP_RATIO,
396 void vout_ControlChangeCropWindow(vout_thread_t *vout,
397 int x, int y, int width, int height)
399 vout_control_cmd_t cmd;
400 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_WINDOW);
403 cmd.u.window.width = width;
404 cmd.u.window.height = height;
406 vout_control_Push(&vout->p->control, &cmd);
408 void vout_ControlChangeCropBorder(vout_thread_t *vout,
409 int left, int top, int right, int bottom)
411 vout_control_cmd_t cmd;
412 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_BORDER);
413 cmd.u.border.left = left;
414 cmd.u.border.top = top;
415 cmd.u.border.right = right;
416 cmd.u.border.bottom = bottom;
418 vout_control_Push(&vout->p->control, &cmd);
420 void vout_ControlChangeFilters(vout_thread_t *vout, const char *filters)
422 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_FILTERS,
425 void vout_ControlChangeSubFilters(vout_thread_t *vout, const char *filters)
427 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_FILTERS,
432 static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
434 /* Load configuration */
435 cfg->is_fullscreen = var_CreateGetBool(vout, "fullscreen");
436 cfg->display.title = title;
437 const int display_width = var_CreateGetInteger(vout, "width");
438 const int display_height = var_CreateGetInteger(vout, "height");
439 cfg->display.width = display_width > 0 ? display_width : 0;
440 cfg->display.height = display_height > 0 ? display_height : 0;
441 cfg->is_display_filled = var_CreateGetBool(vout, "autoscale");
442 cfg->display.sar.num = 1; /* TODO monitor AR */
443 cfg->display.sar.den = 1;
444 unsigned zoom_den = 1000;
445 unsigned zoom_num = zoom_den * var_CreateGetFloat(vout, "scale");
446 vlc_ureduce(&zoom_num, &zoom_den, zoom_num, zoom_den, 0);
447 cfg->zoom.num = zoom_num;
448 cfg->zoom.den = zoom_den;
449 cfg->align.vertical = VOUT_DISPLAY_ALIGN_CENTER;
450 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_CENTER;
451 const int align_mask = var_CreateGetInteger(vout, "align");
452 if (align_mask & 0x1)
453 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_LEFT;
454 else if (align_mask & 0x2)
455 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_RIGHT;
456 if (align_mask & 0x4)
457 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_TOP;
458 else if (align_mask & 0x8)
459 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_BOTTOM;
462 vout_window_t * vout_NewDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
463 const vout_window_cfg_t *cfg)
466 vout_window_cfg_t cfg_override = *cfg;
468 if (!var_InheritBool( vout, "embedded-video"))
469 cfg_override.is_standalone = true;
471 if (vout->p->window.is_unused && vout->p->window.object) {
472 assert(!vout->p->splitter_name);
473 if (!cfg_override.is_standalone == !vout->p->window.cfg.is_standalone &&
474 cfg_override.type == vout->p->window.cfg.type) {
475 /* Reuse the stored window */
476 msg_Dbg(vout, "Reusing previous vout window");
477 vout_window_t *window = vout->p->window.object;
478 if (cfg_override.width != vout->p->window.cfg.width ||
479 cfg_override.height != vout->p->window.cfg.height)
480 vout_window_SetSize(window,
481 cfg_override.width, cfg_override.height);
482 vout->p->window.is_unused = false;
483 vout->p->window.cfg = cfg_override;
487 vout_window_Delete(vout->p->window.object);
488 vout->p->window.is_unused = true;
489 vout->p->window.object = NULL;
492 vout_window_t *window = vout_window_New(VLC_OBJECT(vout), NULL,
496 if (!vout->p->splitter_name) {
497 vout->p->window.is_unused = false;
498 vout->p->window.cfg = cfg_override;
499 vout->p->window.object = window;
504 void vout_DeleteDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
505 vout_window_t *window)
508 if (!vout->p->window.is_unused && vout->p->window.object == window) {
509 vout->p->window.is_unused = true;
510 } else if (vout->p->window.is_unused && vout->p->window.object && !window) {
511 vout_window_Delete(vout->p->window.object);
512 vout->p->window.is_unused = true;
513 vout->p->window.object = NULL;
515 vout_window_Delete(window);
520 static picture_t *VoutVideoFilterNewPicture(filter_t *filter)
522 vout_thread_t *vout = (vout_thread_t*)filter->p_owner;
523 return picture_pool_Get(vout->p->private_pool);
525 static void VoutVideoFilterDelPicture(filter_t *filter, picture_t *picture)
528 picture_Release(picture);
530 static int VoutVideoFilterAllocationSetup(filter_t *filter, void *data)
532 filter->pf_video_buffer_new = VoutVideoFilterNewPicture;
533 filter->pf_video_buffer_del = VoutVideoFilterDelPicture;
534 filter->p_owner = data; /* vout */
539 static int ThreadDisplayPicture(vout_thread_t *vout,
540 bool now, mtime_t *deadline)
542 vout_display_t *vd = vout->p->display.vd;
543 int displayed_count = 0;
547 const mtime_t date = mdate();
548 const bool is_paused = vout->p->pause.is_on;
549 bool redisplay = is_paused && !now && vout->p->displayed.decoded;
552 /* FIXME/XXX we must redisplay the last decoded picture (because
553 * of potential vout updated, or filters update or SPU update)
554 * For now a high update period is needed but it coulmd be removed
556 * - vout module emits events from theselves.
557 * - *and* SPU is modified to emit an event or a deadline when needed.
559 * So it will be done latter.
562 picture_t *peek = picture_fifo_Peek(vout->p->decoder_fifo);
564 is_forced = peek->b_force || is_paused || now;
565 *deadline = (is_forced ? date : peek->date) - vout_chrono_GetHigh(&vout->p->render);
566 picture_Release(peek);
572 /* FIXME a better way for this delay is needed */
573 const mtime_t date_update = vout->p->displayed.date + VOUT_REDISPLAY_DELAY;
574 if (date_update > date || !vout->p->displayed.decoded) {
575 *deadline = vout->p->displayed.decoded ? date_update : VLC_TS_INVALID;
580 *deadline = date - vout_chrono_GetHigh(&vout->p->render);
582 if (*deadline > VOUT_MWAIT_TOLERANCE)
583 *deadline -= VOUT_MWAIT_TOLERANCE;
585 /* If we are too early and can wait, do it */
586 if (date < *deadline && !now)
591 decoded = vout->p->displayed.decoded;
592 vout->p->displayed.decoded = NULL;
594 decoded = picture_fifo_Pop(vout->p->decoder_fifo);
596 if (!is_forced && !vout->p->is_late_dropped) {
597 const mtime_t predicted = date + vout_chrono_GetLow(&vout->p->render);
598 const mtime_t late = predicted - decoded->date;
600 msg_Dbg(vout, "picture might be displayed late (missing %d ms)", (int)(late/1000));
601 if (late > VOUT_DISPLAY_LATE_THRESHOLD) {
602 msg_Warn(vout, "rejected picture because of render time");
604 picture_Release(decoded);
611 vout->p->displayed.is_interlaced = !decoded->b_progressive;
612 vout->p->displayed.qtype = decoded->i_qtype;
614 vout->p->displayed.timestamp = decoded->date;
617 if (vout->p->displayed.decoded)
618 picture_Release(vout->p->displayed.decoded);
619 picture_Hold(decoded);
620 vout->p->displayed.decoded = decoded;
623 vout_chrono_Start(&vout->p->render);
625 picture_t *filtered = NULL;
627 vlc_mutex_lock(&vout->p->vfilter_lock);
628 filtered = filter_chain_VideoFilter(vout->p->vfilter_chain, decoded);
629 //assert(filtered == decoded); // TODO implement
630 vlc_mutex_unlock(&vout->p->vfilter_lock);
636 * Check for subpictures to display
638 const bool do_snapshot = vout_snapshot_IsRequested(&vout->p->snapshot);
639 mtime_t spu_render_time = is_forced ? mdate() : filtered->date;
640 if (vout->p->pause.is_on)
641 spu_render_time = vout->p->pause.date;
643 spu_render_time = filtered->date > 1 ? filtered->date : mdate();
645 subpicture_t *subpic = spu_SortSubpictures(vout->p->p_spu,
652 * - be sure to end up with a direct buffer.
653 * - blend subtitles, and in a fast access buffer
655 picture_t *direct = NULL;
657 (vout->p->decoder_pool != vout->p->display_pool || subpic)) {
659 if (vout->p->is_decoder_pool_slow)
660 render = picture_NewFromFormat(&vd->source);
661 else if (vout->p->decoder_pool != vout->p->display_pool)
662 render = picture_pool_Get(vout->p->display_pool);
664 render = picture_pool_Get(vout->p->private_pool);
667 picture_Copy(render, filtered);
669 spu_RenderSubpictures(vout->p->p_spu,
671 subpic, &vd->source, spu_render_time);
673 if (vout->p->is_decoder_pool_slow) {
674 direct = picture_pool_Get(vout->p->display_pool);
676 picture_Copy(direct, render);
677 picture_Release(render);
682 picture_Release(filtered);
689 * Take a snapshot if requested
691 if (direct && do_snapshot)
692 vout_snapshot_Set(&vout->p->snapshot, &vd->source, direct);
694 /* Render the direct buffer returned by vout_RenderPicture */
696 vout_RenderWrapper(vout, direct);
698 vout_chrono_Stop(&vout->p->render);
703 msg_Info(vout, "render: avg %d ms var %d ms",
704 (int)(vout->p->render.avg/1000), (int)(vout->p->render.var/1000));
709 /* Wait the real date (for rendering jitter) */
711 mwait(decoded->date);
713 /* Display the direct buffer returned by vout_RenderPicture */
714 vout->p->displayed.date = mdate();
716 vout_DisplayWrapper(vout, direct);
722 vout_statistic_Update(&vout->p->statistic, displayed_count, lost_count);
723 if (displayed_count <= 0)
728 static void ThreadManage(vout_thread_t *vout,
730 vout_interlacing_support_t *interlacing,
731 vout_postprocessing_support_t *postprocessing)
733 vlc_mutex_lock(&vout->p->picture_lock);
735 *deadline = VLC_TS_INVALID;
736 ThreadDisplayPicture(vout, false, deadline);
738 const int picture_qtype = vout->p->displayed.qtype;
739 const bool picture_interlaced = vout->p->displayed.is_interlaced;
741 vlc_mutex_unlock(&vout->p->picture_lock);
743 /* Post processing */
744 vout_SetPostProcessingState(vout, postprocessing, picture_qtype);
747 vout_SetInterlacingState(vout, interlacing, picture_interlaced);
749 vout_ManageWrapper(vout);
752 static void ThreadDisplayOsdTitle(vout_thread_t *vout, const char *string)
754 if (!vout->p->title.show)
757 vout_OSDText(vout, SPU_DEFAULT_CHANNEL,
758 vout->p->title.position, INT64_C(1000) * vout->p->title.timeout,
762 static void ThreadChangeFilters(vout_thread_t *vout, const char *filters)
765 es_format_Init(&fmt, VIDEO_ES, vout->p->original.i_chroma);
766 fmt.video = vout->p->original;
768 vlc_mutex_lock(&vout->p->vfilter_lock);
770 filter_chain_Reset(vout->p->vfilter_chain, &fmt, &fmt);
771 if (filter_chain_AppendFromString(vout->p->vfilter_chain,
773 msg_Err(vout, "Video filter chain creation failed");
775 vlc_mutex_unlock(&vout->p->vfilter_lock);
778 static void ThreadChangeSubFilters(vout_thread_t *vout, const char *filters)
780 spu_ChangeFilters(vout->p->p_spu, filters);
783 static void ThreadChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
785 assert(!vout->p->pause.is_on || !is_paused);
787 if (vout->p->pause.is_on) {
788 const mtime_t duration = date - vout->p->pause.date;
790 if (vout->p->step.timestamp > VLC_TS_INVALID)
791 vout->p->step.timestamp += duration;
792 if (vout->p->step.last > VLC_TS_INVALID)
793 vout->p->step.last += duration;
794 picture_fifo_OffsetDate(vout->p->decoder_fifo, duration);
795 if (vout->p->displayed.decoded)
796 vout->p->displayed.decoded->date += duration;
798 spu_OffsetSubtitleDate(vout->p->p_spu, duration);
800 vout->p->step.timestamp = VLC_TS_INVALID;
801 vout->p->step.last = VLC_TS_INVALID;
803 vout->p->pause.is_on = is_paused;
804 vout->p->pause.date = date;
807 static void ThreadFlush(vout_thread_t *vout, bool below, mtime_t date)
809 vout->p->step.timestamp = VLC_TS_INVALID;
810 vout->p->step.last = VLC_TS_INVALID;
812 picture_t *last = vout->p->displayed.decoded;
814 if (( below && last->date <= date) ||
815 (!below && last->date >= date)) {
816 picture_Release(last);
818 vout->p->displayed.decoded = NULL;
819 vout->p->displayed.date = VLC_TS_INVALID;
820 vout->p->displayed.timestamp = VLC_TS_INVALID;
823 picture_fifo_Flush(vout->p->decoder_fifo, date, below);
826 static void ThreadReset(vout_thread_t *vout)
828 ThreadFlush(vout, true, INT64_MAX);
829 if (vout->p->decoder_pool)
830 picture_pool_NonEmpty(vout->p->decoder_pool, true);
831 vout->p->pause.is_on = false;
832 vout->p->pause.date = mdate();
835 static void ThreadStep(vout_thread_t *vout, mtime_t *duration)
839 if (vout->p->step.last <= VLC_TS_INVALID)
840 vout->p->step.last = vout->p->displayed.timestamp;
843 if (ThreadDisplayPicture(vout, true, &dummy))
846 vout->p->step.timestamp = vout->p->displayed.timestamp;
848 if (vout->p->step.last > VLC_TS_INVALID &&
849 vout->p->step.timestamp > vout->p->step.last) {
850 *duration = vout->p->step.timestamp - vout->p->step.last;
851 vout->p->step.last = vout->p->step.timestamp;
852 /* TODO advance subpicture by the duration ... */
856 static void ThreadChangeFullscreen(vout_thread_t *vout, bool fullscreen)
858 /* FIXME not sure setting "fullscreen" is good ... */
859 var_SetBool(vout, "fullscreen", fullscreen);
860 vout_SetDisplayFullscreen(vout->p->display.vd, fullscreen);
863 static void ThreadChangeOnTop(vout_thread_t *vout, bool is_on_top)
865 vout_SetWindowState(vout->p->display.vd,
866 is_on_top ? VOUT_WINDOW_STATE_ABOVE :
867 VOUT_WINDOW_STATE_NORMAL);
870 static void ThreadChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
872 vout_SetDisplayFilled(vout->p->display.vd, is_filled);
875 static void ThreadChangeZoom(vout_thread_t *vout, int num, int den)
877 if (num * 10 < den) {
880 } else if (num > den * 10) {
884 vout_SetDisplayZoom(vout->p->display.vd, num, den);
887 static void ThreadChangeAspectRatio(vout_thread_t *vout,
888 unsigned num, unsigned den)
890 const video_format_t *source = &vout->p->original;
892 if (num > 0 && den > 0) {
893 num *= source->i_visible_height;
894 den *= source->i_visible_width;
895 vlc_ureduce(&num, &den, num, den, 0);
897 vout_SetDisplayAspect(vout->p->display.vd, num, den);
901 static void ThreadExecuteCropWindow(vout_thread_t *vout,
902 unsigned crop_num, unsigned crop_den,
903 unsigned x, unsigned y,
904 unsigned width, unsigned height)
906 const video_format_t *source = &vout->p->original;
908 vout_SetDisplayCrop(vout->p->display.vd,
910 source->i_x_offset + x,
911 source->i_y_offset + y,
914 static void ThreadExecuteCropBorder(vout_thread_t *vout,
915 unsigned left, unsigned top,
916 unsigned right, unsigned bottom)
918 const video_format_t *source = &vout->p->original;
919 ThreadExecuteCropWindow(vout, 0, 0,
922 /* At worst, it becomes < 0 (but unsigned) and will be rejected */
923 source->i_visible_width - (left + right),
924 source->i_visible_height - (top + bottom));
927 static void ThreadExecuteCropRatio(vout_thread_t *vout,
928 unsigned num, unsigned den)
930 const video_format_t *source = &vout->p->original;
931 ThreadExecuteCropWindow(vout, num, den,
933 source->i_visible_width,
934 source->i_visible_height);
937 static int ThreadStart(vout_thread_t *vout, const vout_display_state_t *state)
939 vlc_mouse_Init(&vout->p->mouse);
940 vout->p->decoder_fifo = picture_fifo_New();
941 vout->p->decoder_pool = NULL;
942 vout->p->display_pool = NULL;
943 vout->p->private_pool = NULL;
945 vout->p->vfilter_chain =
946 filter_chain_New( vout, "video filter2", false,
947 VoutVideoFilterAllocationSetup, NULL, vout);
949 vout_display_state_t state_default;
951 VoutGetDisplayCfg(vout, &state_default.cfg, vout->p->display.title);
952 state_default.wm_state = var_CreateGetBool(vout, "video-on-top") ? VOUT_WINDOW_STATE_ABOVE :
953 VOUT_WINDOW_STATE_NORMAL;
954 state_default.sar.num = 0;
955 state_default.sar.den = 0;
957 state = &state_default;
960 if (vout_OpenWrapper(vout, vout->p->splitter_name, state))
962 if (vout_InitWrapper(vout))
964 assert(vout->p->decoder_pool);
966 vout->p->displayed.decoded = NULL;
967 vout->p->displayed.date = VLC_TS_INVALID;
968 vout->p->displayed.decoded = NULL;
969 vout->p->displayed.timestamp = VLC_TS_INVALID;
970 vout->p->displayed.qtype = QTYPE_NONE;
971 vout->p->displayed.is_interlaced = false;
973 vout->p->step.last = VLC_TS_INVALID;
974 vout->p->step.timestamp = VLC_TS_INVALID;
976 video_format_Print(VLC_OBJECT(vout), "original format", &vout->p->original);
980 static void ThreadStop(vout_thread_t *vout, vout_display_state_t *state)
982 /* Destroy the video filters2 */
983 filter_chain_Delete(vout->p->vfilter_chain);
985 /* Destroy translation tables */
986 if (vout->p->display.vd) {
987 if (vout->p->decoder_pool) {
988 ThreadFlush(vout, true, INT64_MAX);
989 vout_EndWrapper(vout);
991 vout_CloseWrapper(vout, state);
994 if (vout->p->decoder_fifo)
995 picture_fifo_Delete(vout->p->decoder_fifo);
996 assert(!vout->p->decoder_pool);
999 static void ThreadInit(vout_thread_t *vout)
1001 vout->p->window.is_unused = true;
1002 vout->p->window.object = NULL;
1003 vout->p->dead = false;
1004 vout->p->is_late_dropped = var_InheritBool(vout, "drop-late-frames");
1005 vout->p->pause.is_on = false;
1006 vout->p->pause.date = VLC_TS_INVALID;
1008 vout_chrono_Init(&vout->p->render, 5, 10000); /* Arbitrary initial time */
1011 static void ThreadClean(vout_thread_t *vout)
1013 if (vout->p->window.object) {
1014 assert(vout->p->window.is_unused);
1015 vout_window_Delete(vout->p->window.object);
1017 vout_chrono_Clean(&vout->p->render);
1018 vout->p->dead = true;
1019 vout_control_Dead(&vout->p->control);
1022 static int ThreadReinit(vout_thread_t *vout,
1023 const vout_configuration_t *cfg)
1025 video_format_t original;
1026 if (VoutValidateFormat(&original, cfg->fmt)) {
1027 ThreadStop(vout, NULL);
1029 return VLC_EGENERIC;
1031 if (video_format_IsSimilar(&original, &vout->p->original)) {
1032 if (cfg->dpb_size <= vout->p->dpb_size)
1034 msg_Warn(vout, "DPB need to be increased");
1037 vout_display_state_t state;
1038 memset(&state, 0, sizeof(state));
1040 ThreadStop(vout, &state);
1042 if (!state.cfg.is_fullscreen) {
1043 state.cfg.display.width = 0;
1044 state.cfg.display.height = 0;
1048 /* FIXME current vout "variables" are not in sync here anymore
1049 * and I am not sure what to do */
1051 vout->p->original = original;
1052 vout->p->dpb_size = cfg->dpb_size;
1053 if (ThreadStart(vout, &state)) {
1055 return VLC_EGENERIC;
1060 /*****************************************************************************
1061 * Thread: video output thread
1062 *****************************************************************************
1063 * Video output thread. This function does only returns when the thread is
1064 * terminated. It handles the pictures arriving in the video heap and the
1065 * display device events.
1066 *****************************************************************************/
1067 static void *Thread(void *object)
1069 vout_thread_t *vout = object;
1071 vout_interlacing_support_t interlacing = {
1072 .is_interlaced = false,
1075 vout_postprocessing_support_t postprocessing = {
1076 .qtype = QTYPE_NONE,
1079 mtime_t deadline = VLC_TS_INVALID;
1081 vout_control_cmd_t cmd;
1083 /* FIXME remove thoses ugly timeouts
1085 while (!vout_control_Pop(&vout->p->control, &cmd, deadline, 100000)) {
1087 case VOUT_CONTROL_INIT:
1089 if (ThreadStart(vout, NULL)) {
1090 ThreadStop(vout, NULL);
1095 case VOUT_CONTROL_CLEAN:
1096 ThreadStop(vout, NULL);
1099 case VOUT_CONTROL_REINIT:
1100 if (ThreadReinit(vout, cmd.u.cfg))
1103 case VOUT_CONTROL_OSD_TITLE:
1104 ThreadDisplayOsdTitle(vout, cmd.u.string);
1106 case VOUT_CONTROL_CHANGE_FILTERS:
1107 ThreadChangeFilters(vout, cmd.u.string);
1109 case VOUT_CONTROL_CHANGE_SUB_FILTERS:
1110 ThreadChangeSubFilters(vout, cmd.u.string);
1112 case VOUT_CONTROL_PAUSE:
1113 ThreadChangePause(vout, cmd.u.pause.is_on, cmd.u.pause.date);
1115 case VOUT_CONTROL_FLUSH:
1116 ThreadFlush(vout, false, cmd.u.time);
1118 case VOUT_CONTROL_RESET:
1121 case VOUT_CONTROL_STEP:
1122 ThreadStep(vout, cmd.u.time_ptr);
1124 case VOUT_CONTROL_FULLSCREEN:
1125 ThreadChangeFullscreen(vout, cmd.u.boolean);
1127 case VOUT_CONTROL_ON_TOP:
1128 ThreadChangeOnTop(vout, cmd.u.boolean);
1130 case VOUT_CONTROL_DISPLAY_FILLED:
1131 ThreadChangeDisplayFilled(vout, cmd.u.boolean);
1133 case VOUT_CONTROL_ZOOM:
1134 ThreadChangeZoom(vout, cmd.u.pair.a, cmd.u.pair.b);
1136 case VOUT_CONTROL_ASPECT_RATIO:
1137 ThreadChangeAspectRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1139 case VOUT_CONTROL_CROP_RATIO:
1140 ThreadExecuteCropRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1142 case VOUT_CONTROL_CROP_WINDOW:
1143 ThreadExecuteCropWindow(vout, 0, 0,
1144 cmd.u.window.x, cmd.u.window.y,
1145 cmd.u.window.width, cmd.u.window.height);
1147 case VOUT_CONTROL_CROP_BORDER:
1148 ThreadExecuteCropBorder(vout,
1149 cmd.u.border.left, cmd.u.border.top,
1150 cmd.u.border.right, cmd.u.border.bottom);
1155 vout_control_cmd_Clean(&cmd);
1158 ThreadManage(vout, &deadline, &interlacing, &postprocessing);