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;
181 if (cfg->change_fmt && !cfg->fmt) {
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 if (cfg->change_fmt) {
201 vout_control_cmd_t cmd;
202 vout_control_cmd_Init(&cmd, VOUT_CONTROL_REINIT);
205 vout_control_Push(&vout->p->control, &cmd);
206 vout_control_WaitEmpty(&vout->p->control);
209 if (!vout->p->dead) {
210 msg_Dbg(object, "reusing provided vout");
213 vout_CloseAndRelease(vout);
215 msg_Warn(object, "cannot reuse provided vout");
217 return VoutCreate(object, cfg);
220 /*****************************************************************************
221 * vout_Close: Close a vout created by VoutCreate.
222 *****************************************************************************
223 * You HAVE to call it on vout created by VoutCreate before vlc_object_release.
224 * You should NEVER call it on vout not obtained through VoutCreate
225 * (like with vout_Request or vlc_object_find.)
226 * You can use vout_CloseAndRelease() as a convenience method.
227 *****************************************************************************/
228 void vout_Close(vout_thread_t *vout)
233 spu_Attach(vout->p->p_spu, vout->p->input, false);
234 vlc_object_detach(vout->p->p_spu);
236 vout_snapshot_End(&vout->p->snapshot);
238 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_CLEAN);
239 vlc_join(vout->p->thread, NULL);
243 static void VoutDestructor(vlc_object_t *object)
245 vout_thread_t *vout = (vout_thread_t *)object;
247 /* Make sure the vout was stopped first */
248 //assert(!vout->p_module);
250 free(vout->p->splitter_name);
253 spu_Destroy(vout->p->p_spu);
255 /* Destroy the locks */
256 vlc_mutex_destroy(&vout->p->picture_lock);
257 vlc_mutex_destroy(&vout->p->vfilter_lock);
258 vout_control_Clean(&vout->p->control);
261 vout_statistic_Clean(&vout->p->statistic);
264 vout_snapshot_Clean(&vout->p->snapshot);
266 video_format_Clean(&vout->p->original);
270 void vout_ChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
272 vout_control_cmd_t cmd;
273 vout_control_cmd_Init(&cmd, VOUT_CONTROL_PAUSE);
274 cmd.u.pause.is_on = is_paused;
275 cmd.u.pause.date = date;
276 vout_control_Push(&vout->p->control, &cmd);
278 vout_control_WaitEmpty(&vout->p->control);
281 void vout_GetResetStatistic(vout_thread_t *vout, int *displayed, int *lost)
283 vout_statistic_GetReset( &vout->p->statistic, displayed, lost );
286 void vout_Flush(vout_thread_t *vout, mtime_t date)
288 vout_control_PushTime(&vout->p->control, VOUT_CONTROL_FLUSH, date);
289 vout_control_WaitEmpty(&vout->p->control);
292 void vout_Reset(vout_thread_t *vout)
294 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_RESET);
295 vout_control_WaitEmpty(&vout->p->control);
298 bool vout_IsEmpty(vout_thread_t *vout)
300 vlc_mutex_lock(&vout->p->picture_lock);
302 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
304 picture_Release(picture);
306 vlc_mutex_unlock(&vout->p->picture_lock);
311 void vout_FixLeaks( vout_thread_t *vout )
313 vlc_mutex_lock(&vout->p->picture_lock);
315 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
317 picture = picture_pool_Get(vout->p->decoder_pool);
321 picture_Release(picture);
322 /* Not all pictures has been displayed yet or some are
324 vlc_mutex_unlock(&vout->p->picture_lock);
328 /* There is no reason that no pictures are available, force one
329 * from the pool, becarefull with it though */
330 msg_Err(vout, "pictures leaked, trying to workaround");
333 picture_pool_NonEmpty(vout->p->decoder_pool, false);
335 vlc_mutex_unlock(&vout->p->picture_lock);
337 void vout_NextPicture(vout_thread_t *vout, mtime_t *duration)
339 vout_control_cmd_t cmd;
340 vout_control_cmd_Init(&cmd, VOUT_CONTROL_STEP);
341 cmd.u.time_ptr = duration;
343 vout_control_Push(&vout->p->control, &cmd);
344 vout_control_WaitEmpty(&vout->p->control);
347 void vout_DisplayTitle(vout_thread_t *vout, const char *title)
350 vout_control_PushString(&vout->p->control, VOUT_CONTROL_OSD_TITLE, title);
353 void vout_PutSubpicture( vout_thread_t *vout, subpicture_t *subpic )
355 spu_DisplaySubpicture(vout->p->p_spu, subpic);
357 int vout_RegisterSubpictureChannel( vout_thread_t *vout )
359 return spu_RegisterChannel(vout->p->p_spu);
361 void vout_FlushSubpictureChannel( vout_thread_t *vout, int channel )
363 spu_ClearChannel(vout->p->p_spu, channel);
366 /* vout_Control* are usable by anyone at anytime */
367 void vout_ControlChangeFullscreen(vout_thread_t *vout, bool fullscreen)
369 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_FULLSCREEN,
372 void vout_ControlChangeOnTop(vout_thread_t *vout, bool is_on_top)
374 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_ON_TOP,
377 void vout_ControlChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
379 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_DISPLAY_FILLED,
382 void vout_ControlChangeZoom(vout_thread_t *vout, int num, int den)
384 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ZOOM,
387 void vout_ControlChangeSampleAspectRatio(vout_thread_t *vout,
388 unsigned num, unsigned den)
390 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ASPECT_RATIO,
393 void vout_ControlChangeCropRatio(vout_thread_t *vout,
394 unsigned num, unsigned den)
396 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_CROP_RATIO,
399 void vout_ControlChangeCropWindow(vout_thread_t *vout,
400 int x, int y, int width, int height)
402 vout_control_cmd_t cmd;
403 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_WINDOW);
406 cmd.u.window.width = width;
407 cmd.u.window.height = height;
409 vout_control_Push(&vout->p->control, &cmd);
411 void vout_ControlChangeCropBorder(vout_thread_t *vout,
412 int left, int top, int right, int bottom)
414 vout_control_cmd_t cmd;
415 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_BORDER);
416 cmd.u.border.left = left;
417 cmd.u.border.top = top;
418 cmd.u.border.right = right;
419 cmd.u.border.bottom = bottom;
421 vout_control_Push(&vout->p->control, &cmd);
423 void vout_ControlChangeFilters(vout_thread_t *vout, const char *filters)
425 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_FILTERS,
428 void vout_ControlChangeSubFilters(vout_thread_t *vout, const char *filters)
430 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_FILTERS,
435 static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
437 /* Load configuration */
438 cfg->is_fullscreen = var_CreateGetBool(vout, "fullscreen");
439 cfg->display.title = title;
440 const int display_width = var_CreateGetInteger(vout, "width");
441 const int display_height = var_CreateGetInteger(vout, "height");
442 cfg->display.width = display_width > 0 ? display_width : 0;
443 cfg->display.height = display_height > 0 ? display_height : 0;
444 cfg->is_display_filled = var_CreateGetBool(vout, "autoscale");
445 cfg->display.sar.num = 1; /* TODO monitor AR */
446 cfg->display.sar.den = 1;
447 unsigned zoom_den = 1000;
448 unsigned zoom_num = zoom_den * var_CreateGetFloat(vout, "scale");
449 vlc_ureduce(&zoom_num, &zoom_den, zoom_num, zoom_den, 0);
450 cfg->zoom.num = zoom_num;
451 cfg->zoom.den = zoom_den;
452 cfg->align.vertical = VOUT_DISPLAY_ALIGN_CENTER;
453 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_CENTER;
454 const int align_mask = var_CreateGetInteger(vout, "align");
455 if (align_mask & 0x1)
456 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_LEFT;
457 else if (align_mask & 0x2)
458 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_RIGHT;
459 if (align_mask & 0x4)
460 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_TOP;
461 else if (align_mask & 0x8)
462 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_BOTTOM;
465 vout_window_t * vout_NewDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
466 const vout_window_cfg_t *cfg)
469 vout_window_cfg_t cfg_override = *cfg;
471 if (!var_InheritBool( vout, "embedded-video"))
472 cfg_override.is_standalone = true;
474 if (vout->p->window.is_unused && vout->p->window.object) {
475 assert(!vout->p->splitter_name);
476 if (!cfg_override.is_standalone == !vout->p->window.cfg.is_standalone &&
477 cfg_override.type == vout->p->window.cfg.type) {
478 /* Reuse the stored window */
479 msg_Dbg(vout, "Reusing previous vout window");
480 vout_window_t *window = vout->p->window.object;
481 if (cfg_override.width != vout->p->window.cfg.width ||
482 cfg_override.height != vout->p->window.cfg.height)
483 vout_window_SetSize(window,
484 cfg_override.width, cfg_override.height);
485 vout->p->window.is_unused = false;
486 vout->p->window.cfg = cfg_override;
490 vout_window_Delete(vout->p->window.object);
491 vout->p->window.is_unused = true;
492 vout->p->window.object = NULL;
495 vout_window_t *window = vout_window_New(VLC_OBJECT(vout), NULL,
499 if (!vout->p->splitter_name) {
500 vout->p->window.is_unused = false;
501 vout->p->window.cfg = cfg_override;
502 vout->p->window.object = window;
507 void vout_DeleteDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
508 vout_window_t *window)
511 if (!vout->p->window.is_unused && vout->p->window.object == window) {
512 vout->p->window.is_unused = true;
513 } else if (vout->p->window.is_unused && vout->p->window.object && !window) {
514 vout_window_Delete(vout->p->window.object);
515 vout->p->window.is_unused = true;
516 vout->p->window.object = NULL;
518 vout_window_Delete(window);
523 static picture_t *VoutVideoFilterNewPicture(filter_t *filter)
525 vout_thread_t *vout = (vout_thread_t*)filter->p_owner;
526 return picture_pool_Get(vout->p->private_pool);
528 static void VoutVideoFilterDelPicture(filter_t *filter, picture_t *picture)
531 picture_Release(picture);
533 static int VoutVideoFilterAllocationSetup(filter_t *filter, void *data)
535 filter->pf_video_buffer_new = VoutVideoFilterNewPicture;
536 filter->pf_video_buffer_del = VoutVideoFilterDelPicture;
537 filter->p_owner = data; /* vout */
542 static int ThreadDisplayPicture(vout_thread_t *vout,
543 bool now, mtime_t *deadline)
545 vout_display_t *vd = vout->p->display.vd;
546 int displayed_count = 0;
550 const mtime_t date = mdate();
551 const bool is_paused = vout->p->pause.is_on;
552 bool redisplay = is_paused && !now && vout->p->displayed.decoded;
555 /* FIXME/XXX we must redisplay the last decoded picture (because
556 * of potential vout updated, or filters update or SPU update)
557 * For now a high update period is needed but it coulmd be removed
559 * - vout module emits events from theselves.
560 * - *and* SPU is modified to emit an event or a deadline when needed.
562 * So it will be done latter.
565 picture_t *peek = picture_fifo_Peek(vout->p->decoder_fifo);
567 is_forced = peek->b_force || is_paused || now;
568 *deadline = (is_forced ? date : peek->date) - vout_chrono_GetHigh(&vout->p->render);
569 picture_Release(peek);
575 /* FIXME a better way for this delay is needed */
576 const mtime_t date_update = vout->p->displayed.date + VOUT_REDISPLAY_DELAY;
577 if (date_update > date || !vout->p->displayed.decoded) {
578 *deadline = vout->p->displayed.decoded ? date_update : VLC_TS_INVALID;
583 *deadline = date - vout_chrono_GetHigh(&vout->p->render);
585 if (*deadline > VOUT_MWAIT_TOLERANCE)
586 *deadline -= VOUT_MWAIT_TOLERANCE;
588 /* If we are too early and can wait, do it */
589 if (date < *deadline && !now)
594 decoded = vout->p->displayed.decoded;
595 vout->p->displayed.decoded = NULL;
597 decoded = picture_fifo_Pop(vout->p->decoder_fifo);
599 if (!is_forced && !vout->p->is_late_dropped) {
600 const mtime_t predicted = date + vout_chrono_GetLow(&vout->p->render);
601 const mtime_t late = predicted - decoded->date;
603 msg_Dbg(vout, "picture might be displayed late (missing %d ms)", (int)(late/1000));
604 if (late > VOUT_DISPLAY_LATE_THRESHOLD) {
605 msg_Warn(vout, "rejected picture because of render time");
607 picture_Release(decoded);
614 vout->p->displayed.is_interlaced = !decoded->b_progressive;
615 vout->p->displayed.qtype = decoded->i_qtype;
617 vout->p->displayed.timestamp = decoded->date;
620 if (vout->p->displayed.decoded)
621 picture_Release(vout->p->displayed.decoded);
622 picture_Hold(decoded);
623 vout->p->displayed.decoded = decoded;
626 vout_chrono_Start(&vout->p->render);
628 picture_t *filtered = NULL;
630 vlc_mutex_lock(&vout->p->vfilter_lock);
631 filtered = filter_chain_VideoFilter(vout->p->vfilter_chain, decoded);
632 //assert(filtered == decoded); // TODO implement
633 vlc_mutex_unlock(&vout->p->vfilter_lock);
639 * Check for subpictures to display
641 const bool do_snapshot = vout_snapshot_IsRequested(&vout->p->snapshot);
642 mtime_t spu_render_time = is_forced ? mdate() : filtered->date;
643 if (vout->p->pause.is_on)
644 spu_render_time = vout->p->pause.date;
646 spu_render_time = filtered->date > 1 ? filtered->date : mdate();
648 subpicture_t *subpic = spu_SortSubpictures(vout->p->p_spu,
655 * - be sure to end up with a direct buffer.
656 * - blend subtitles, and in a fast access buffer
658 picture_t *direct = NULL;
660 (vout->p->decoder_pool != vout->p->display_pool || subpic)) {
662 if (vout->p->is_decoder_pool_slow)
663 render = picture_NewFromFormat(&vd->source);
664 else if (vout->p->decoder_pool != vout->p->display_pool)
665 render = picture_pool_Get(vout->p->display_pool);
667 render = picture_pool_Get(vout->p->private_pool);
670 picture_Copy(render, filtered);
672 spu_RenderSubpictures(vout->p->p_spu,
674 subpic, &vd->source, spu_render_time);
676 if (vout->p->is_decoder_pool_slow) {
677 direct = picture_pool_Get(vout->p->display_pool);
679 picture_Copy(direct, render);
680 picture_Release(render);
685 picture_Release(filtered);
692 * Take a snapshot if requested
694 if (direct && do_snapshot)
695 vout_snapshot_Set(&vout->p->snapshot, &vd->source, direct);
697 /* Render the direct buffer returned by vout_RenderPicture */
699 vout_RenderWrapper(vout, direct);
701 vout_chrono_Stop(&vout->p->render);
706 msg_Info(vout, "render: avg %d ms var %d ms",
707 (int)(vout->p->render.avg/1000), (int)(vout->p->render.var/1000));
712 /* Wait the real date (for rendering jitter) */
714 mwait(decoded->date);
716 /* Display the direct buffer returned by vout_RenderPicture */
717 vout->p->displayed.date = mdate();
719 vout_DisplayWrapper(vout, direct);
725 vout_statistic_Update(&vout->p->statistic, displayed_count, lost_count);
726 if (displayed_count <= 0)
731 static void ThreadManage(vout_thread_t *vout,
733 vout_interlacing_support_t *interlacing,
734 vout_postprocessing_support_t *postprocessing)
736 vlc_mutex_lock(&vout->p->picture_lock);
738 *deadline = VLC_TS_INVALID;
739 ThreadDisplayPicture(vout, false, deadline);
741 const int picture_qtype = vout->p->displayed.qtype;
742 const bool picture_interlaced = vout->p->displayed.is_interlaced;
744 vlc_mutex_unlock(&vout->p->picture_lock);
746 /* Post processing */
747 vout_SetPostProcessingState(vout, postprocessing, picture_qtype);
750 vout_SetInterlacingState(vout, interlacing, picture_interlaced);
752 vout_ManageWrapper(vout);
755 static void ThreadDisplayOsdTitle(vout_thread_t *vout, const char *string)
757 if (!vout->p->title.show)
760 vout_OSDText(vout, SPU_DEFAULT_CHANNEL,
761 vout->p->title.position, INT64_C(1000) * vout->p->title.timeout,
765 static void ThreadChangeFilters(vout_thread_t *vout, const char *filters)
768 es_format_Init(&fmt, VIDEO_ES, vout->p->original.i_chroma);
769 fmt.video = vout->p->original;
771 vlc_mutex_lock(&vout->p->vfilter_lock);
773 filter_chain_Reset(vout->p->vfilter_chain, &fmt, &fmt);
774 if (filter_chain_AppendFromString(vout->p->vfilter_chain,
776 msg_Err(vout, "Video filter chain creation failed");
778 vlc_mutex_unlock(&vout->p->vfilter_lock);
781 static void ThreadChangeSubFilters(vout_thread_t *vout, const char *filters)
783 spu_ChangeFilters(vout->p->p_spu, filters);
786 static void ThreadChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
788 assert(!vout->p->pause.is_on || !is_paused);
790 if (vout->p->pause.is_on) {
791 const mtime_t duration = date - vout->p->pause.date;
793 if (vout->p->step.timestamp > VLC_TS_INVALID)
794 vout->p->step.timestamp += duration;
795 if (vout->p->step.last > VLC_TS_INVALID)
796 vout->p->step.last += duration;
797 picture_fifo_OffsetDate(vout->p->decoder_fifo, duration);
798 if (vout->p->displayed.decoded)
799 vout->p->displayed.decoded->date += duration;
801 spu_OffsetSubtitleDate(vout->p->p_spu, duration);
803 vout->p->step.timestamp = VLC_TS_INVALID;
804 vout->p->step.last = VLC_TS_INVALID;
806 vout->p->pause.is_on = is_paused;
807 vout->p->pause.date = date;
810 static void ThreadFlush(vout_thread_t *vout, bool below, mtime_t date)
812 vout->p->step.timestamp = VLC_TS_INVALID;
813 vout->p->step.last = VLC_TS_INVALID;
815 picture_t *last = vout->p->displayed.decoded;
817 if (( below && last->date <= date) ||
818 (!below && last->date >= date)) {
819 picture_Release(last);
821 vout->p->displayed.decoded = NULL;
822 vout->p->displayed.date = VLC_TS_INVALID;
823 vout->p->displayed.timestamp = VLC_TS_INVALID;
826 picture_fifo_Flush(vout->p->decoder_fifo, date, below);
829 static void ThreadReset(vout_thread_t *vout)
831 ThreadFlush(vout, true, INT64_MAX);
832 if (vout->p->decoder_pool)
833 picture_pool_NonEmpty(vout->p->decoder_pool, true);
834 vout->p->pause.is_on = false;
835 vout->p->pause.date = mdate();
838 static void ThreadStep(vout_thread_t *vout, mtime_t *duration)
842 if (vout->p->step.last <= VLC_TS_INVALID)
843 vout->p->step.last = vout->p->displayed.timestamp;
846 if (ThreadDisplayPicture(vout, true, &dummy))
849 vout->p->step.timestamp = vout->p->displayed.timestamp;
851 if (vout->p->step.last > VLC_TS_INVALID &&
852 vout->p->step.timestamp > vout->p->step.last) {
853 *duration = vout->p->step.timestamp - vout->p->step.last;
854 vout->p->step.last = vout->p->step.timestamp;
855 /* TODO advance subpicture by the duration ... */
859 static void ThreadChangeFullscreen(vout_thread_t *vout, bool fullscreen)
861 /* FIXME not sure setting "fullscreen" is good ... */
862 var_SetBool(vout, "fullscreen", fullscreen);
863 vout_SetDisplayFullscreen(vout->p->display.vd, fullscreen);
866 static void ThreadChangeOnTop(vout_thread_t *vout, bool is_on_top)
868 vout_SetWindowState(vout->p->display.vd,
869 is_on_top ? VOUT_WINDOW_STATE_ABOVE :
870 VOUT_WINDOW_STATE_NORMAL);
873 static void ThreadChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
875 vout_SetDisplayFilled(vout->p->display.vd, is_filled);
878 static void ThreadChangeZoom(vout_thread_t *vout, int num, int den)
880 if (num * 10 < den) {
883 } else if (num > den * 10) {
887 vout_SetDisplayZoom(vout->p->display.vd, num, den);
890 static void ThreadChangeAspectRatio(vout_thread_t *vout,
891 unsigned num, unsigned den)
893 const video_format_t *source = &vout->p->original;
895 if (num > 0 && den > 0) {
896 num *= source->i_visible_height;
897 den *= source->i_visible_width;
898 vlc_ureduce(&num, &den, num, den, 0);
900 vout_SetDisplayAspect(vout->p->display.vd, num, den);
904 static void ThreadExecuteCropWindow(vout_thread_t *vout,
905 unsigned crop_num, unsigned crop_den,
906 unsigned x, unsigned y,
907 unsigned width, unsigned height)
909 const video_format_t *source = &vout->p->original;
911 vout_SetDisplayCrop(vout->p->display.vd,
913 source->i_x_offset + x,
914 source->i_y_offset + y,
917 static void ThreadExecuteCropBorder(vout_thread_t *vout,
918 unsigned left, unsigned top,
919 unsigned right, unsigned bottom)
921 const video_format_t *source = &vout->p->original;
922 ThreadExecuteCropWindow(vout, 0, 0,
925 /* At worst, it becomes < 0 (but unsigned) and will be rejected */
926 source->i_visible_width - (left + right),
927 source->i_visible_height - (top + bottom));
930 static void ThreadExecuteCropRatio(vout_thread_t *vout,
931 unsigned num, unsigned den)
933 const video_format_t *source = &vout->p->original;
934 ThreadExecuteCropWindow(vout, num, den,
936 source->i_visible_width,
937 source->i_visible_height);
940 static int ThreadStart(vout_thread_t *vout, const vout_display_state_t *state)
942 vlc_mouse_Init(&vout->p->mouse);
943 vout->p->decoder_fifo = picture_fifo_New();
944 vout->p->decoder_pool = NULL;
945 vout->p->display_pool = NULL;
946 vout->p->private_pool = NULL;
948 vout->p->vfilter_chain =
949 filter_chain_New( vout, "video filter2", false,
950 VoutVideoFilterAllocationSetup, NULL, vout);
952 vout_display_state_t state_default;
954 VoutGetDisplayCfg(vout, &state_default.cfg, vout->p->display.title);
955 state_default.wm_state = var_CreateGetBool(vout, "video-on-top") ? VOUT_WINDOW_STATE_ABOVE :
956 VOUT_WINDOW_STATE_NORMAL;
957 state_default.sar.num = 0;
958 state_default.sar.den = 0;
960 state = &state_default;
963 if (vout_OpenWrapper(vout, vout->p->splitter_name, state))
965 if (vout_InitWrapper(vout))
967 assert(vout->p->decoder_pool);
969 vout->p->displayed.decoded = NULL;
970 vout->p->displayed.date = VLC_TS_INVALID;
971 vout->p->displayed.decoded = NULL;
972 vout->p->displayed.timestamp = VLC_TS_INVALID;
973 vout->p->displayed.qtype = QTYPE_NONE;
974 vout->p->displayed.is_interlaced = false;
976 vout->p->step.last = VLC_TS_INVALID;
977 vout->p->step.timestamp = VLC_TS_INVALID;
979 video_format_Print(VLC_OBJECT(vout), "original format", &vout->p->original);
983 static void ThreadStop(vout_thread_t *vout, vout_display_state_t *state)
985 /* Destroy the video filters2 */
986 filter_chain_Delete(vout->p->vfilter_chain);
988 /* Destroy translation tables */
989 if (vout->p->display.vd) {
990 if (vout->p->decoder_pool) {
991 ThreadFlush(vout, true, INT64_MAX);
992 vout_EndWrapper(vout);
994 vout_CloseWrapper(vout, state);
997 if (vout->p->decoder_fifo)
998 picture_fifo_Delete(vout->p->decoder_fifo);
999 assert(!vout->p->decoder_pool);
1002 static void ThreadInit(vout_thread_t *vout)
1004 vout->p->window.is_unused = true;
1005 vout->p->window.object = NULL;
1006 vout->p->dead = false;
1007 vout->p->is_late_dropped = var_InheritBool(vout, "drop-late-frames");
1008 vout->p->pause.is_on = false;
1009 vout->p->pause.date = VLC_TS_INVALID;
1011 vout_chrono_Init(&vout->p->render, 5, 10000); /* Arbitrary initial time */
1014 static void ThreadClean(vout_thread_t *vout)
1016 if (vout->p->window.object) {
1017 assert(vout->p->window.is_unused);
1018 vout_window_Delete(vout->p->window.object);
1020 vout_chrono_Clean(&vout->p->render);
1021 vout->p->dead = true;
1022 vout_control_Dead(&vout->p->control);
1025 static int ThreadReinit(vout_thread_t *vout,
1026 const vout_configuration_t *cfg)
1028 video_format_t original;
1029 if (VoutValidateFormat(&original, cfg->fmt)) {
1030 ThreadStop(vout, NULL);
1032 return VLC_EGENERIC;
1034 if (video_format_IsSimilar(&original, &vout->p->original)) {
1035 if (cfg->dpb_size <= vout->p->dpb_size)
1037 msg_Warn(vout, "DPB need to be increased");
1040 vout_display_state_t state;
1041 memset(&state, 0, sizeof(state));
1043 ThreadStop(vout, &state);
1045 if (!state.cfg.is_fullscreen) {
1046 state.cfg.display.width = 0;
1047 state.cfg.display.height = 0;
1051 /* FIXME current vout "variables" are not in sync here anymore
1052 * and I am not sure what to do */
1054 vout->p->original = original;
1055 vout->p->dpb_size = cfg->dpb_size;
1056 if (ThreadStart(vout, &state)) {
1058 return VLC_EGENERIC;
1063 /*****************************************************************************
1064 * Thread: video output thread
1065 *****************************************************************************
1066 * Video output thread. This function does only returns when the thread is
1067 * terminated. It handles the pictures arriving in the video heap and the
1068 * display device events.
1069 *****************************************************************************/
1070 static void *Thread(void *object)
1072 vout_thread_t *vout = object;
1074 vout_interlacing_support_t interlacing = {
1075 .is_interlaced = false,
1078 vout_postprocessing_support_t postprocessing = {
1079 .qtype = QTYPE_NONE,
1082 mtime_t deadline = VLC_TS_INVALID;
1084 vout_control_cmd_t cmd;
1086 /* FIXME remove thoses ugly timeouts
1088 while (!vout_control_Pop(&vout->p->control, &cmd, deadline, 100000)) {
1090 case VOUT_CONTROL_INIT:
1092 if (ThreadStart(vout, NULL)) {
1093 ThreadStop(vout, NULL);
1098 case VOUT_CONTROL_CLEAN:
1099 ThreadStop(vout, NULL);
1102 case VOUT_CONTROL_REINIT:
1103 if (ThreadReinit(vout, cmd.u.cfg))
1106 case VOUT_CONTROL_OSD_TITLE:
1107 ThreadDisplayOsdTitle(vout, cmd.u.string);
1109 case VOUT_CONTROL_CHANGE_FILTERS:
1110 ThreadChangeFilters(vout, cmd.u.string);
1112 case VOUT_CONTROL_CHANGE_SUB_FILTERS:
1113 ThreadChangeSubFilters(vout, cmd.u.string);
1115 case VOUT_CONTROL_PAUSE:
1116 ThreadChangePause(vout, cmd.u.pause.is_on, cmd.u.pause.date);
1118 case VOUT_CONTROL_FLUSH:
1119 ThreadFlush(vout, false, cmd.u.time);
1121 case VOUT_CONTROL_RESET:
1124 case VOUT_CONTROL_STEP:
1125 ThreadStep(vout, cmd.u.time_ptr);
1127 case VOUT_CONTROL_FULLSCREEN:
1128 ThreadChangeFullscreen(vout, cmd.u.boolean);
1130 case VOUT_CONTROL_ON_TOP:
1131 ThreadChangeOnTop(vout, cmd.u.boolean);
1133 case VOUT_CONTROL_DISPLAY_FILLED:
1134 ThreadChangeDisplayFilled(vout, cmd.u.boolean);
1136 case VOUT_CONTROL_ZOOM:
1137 ThreadChangeZoom(vout, cmd.u.pair.a, cmd.u.pair.b);
1139 case VOUT_CONTROL_ASPECT_RATIO:
1140 ThreadChangeAspectRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1142 case VOUT_CONTROL_CROP_RATIO:
1143 ThreadExecuteCropRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1145 case VOUT_CONTROL_CROP_WINDOW:
1146 ThreadExecuteCropWindow(vout, 0, 0,
1147 cmd.u.window.x, cmd.u.window.y,
1148 cmd.u.window.width, cmd.u.window.height);
1150 case VOUT_CONTROL_CROP_BORDER:
1151 ThreadExecuteCropBorder(vout,
1152 cmd.u.border.left, cmd.u.border.top,
1153 cmd.u.border.right, cmd.u.border.bottom);
1158 vout_control_cmd_Clean(&cmd);
1161 ThreadManage(vout, &deadline, &interlacing, &postprocessing);