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;
116 vout_control_Init(&vout->p->control);
117 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_INIT);
119 vout_statistic_Init(&vout->p->statistic);
121 vout->p->i_par_den = 1;
123 vout_snapshot_Init(&vout->p->snapshot);
125 /* Initialize locks */
126 vlc_mutex_init(&vout->p->picture_lock);
127 vlc_mutex_init(&vout->p->vfilter_lock);
129 /* Attach the new object now so we can use var inheritance below */
130 vlc_object_attach(vout, object);
132 /* Initialize subpicture unit */
133 vout->p->p_spu = spu_Create(vout);
135 /* Take care of some "interface/control" related initialisations */
138 /* Get splitter name if present */
139 char *splitter_name = var_GetNonEmptyString(vout, "vout-filter");
141 if (asprintf(&vout->p->splitter_name, "%s,none", splitter_name) < 0)
142 vout->p->splitter_name = NULL;
145 vout->p->splitter_name = NULL;
149 vout_InitInterlacingSupport(vout, vout->p->displayed.is_interlaced);
152 vlc_object_set_destructor(vout, VoutDestructor);
155 if (vlc_clone(&vout->p->thread, Thread, vout,
156 VLC_THREAD_PRIORITY_OUTPUT)) {
157 vlc_object_release(vout);
160 spu_Attach(vout->p->p_spu, VLC_OBJECT(vout), true);
162 vout_control_WaitEmpty(&vout->p->control);
165 msg_Err(vout, "video output creation failed");
166 vout_CloseAndRelease(vout);
173 vout_thread_t *(vout_Request)(vlc_object_t *object,
174 const vout_configuration_t *cfg)
176 vout_thread_t *vout = cfg->vout;
179 vout_CloseAndRelease(vout);
183 /* If a vout is provided, try reusing it */
185 spu_Attach(vout->p->p_spu, VLC_OBJECT(vout), false);
186 vlc_object_detach(vout);
187 vlc_object_attach(vout, object);
188 spu_Attach(vout->p->p_spu, VLC_OBJECT(vout), true);
190 vout_control_cmd_t cmd;
191 vout_control_cmd_Init(&cmd, VOUT_CONTROL_REINIT);
194 vout_control_Push(&vout->p->control, &cmd);
195 vout_control_WaitEmpty(&vout->p->control);
196 if (!vout->p->dead) {
197 msg_Dbg(object, "reusing provided vout");
200 vout_CloseAndRelease(vout);
202 msg_Warn(object, "cannot reuse provided vout");
204 return VoutCreate(object, cfg);
207 /*****************************************************************************
208 * vout_Close: Close a vout created by VoutCreate.
209 *****************************************************************************
210 * You HAVE to call it on vout created by VoutCreate before vlc_object_release.
211 * You should NEVER call it on vout not obtained through VoutCreate
212 * (like with vout_Request or vlc_object_find.)
213 * You can use vout_CloseAndRelease() as a convenience method.
214 *****************************************************************************/
215 void vout_Close(vout_thread_t *vout)
219 spu_Attach(vout->p->p_spu, VLC_OBJECT(vout), false);
220 vlc_object_detach(vout->p->p_spu);
222 vout_snapshot_End(&vout->p->snapshot);
224 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_CLEAN);
225 vlc_join(vout->p->thread, NULL);
229 static void VoutDestructor(vlc_object_t *object)
231 vout_thread_t *vout = (vout_thread_t *)object;
233 /* Make sure the vout was stopped first */
234 //assert(!vout->p_module);
236 free(vout->p->splitter_name);
239 spu_Destroy(vout->p->p_spu);
241 /* Destroy the locks */
242 vlc_mutex_destroy(&vout->p->picture_lock);
243 vlc_mutex_destroy(&vout->p->vfilter_lock);
244 vout_control_Clean(&vout->p->control);
247 vout_statistic_Clean(&vout->p->statistic);
250 vout_snapshot_Clean(&vout->p->snapshot);
252 video_format_Clean(&vout->p->original);
256 void vout_ChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
258 vout_control_cmd_t cmd;
259 vout_control_cmd_Init(&cmd, VOUT_CONTROL_PAUSE);
260 cmd.u.pause.is_on = is_paused;
261 cmd.u.pause.date = date;
262 vout_control_Push(&vout->p->control, &cmd);
264 vout_control_WaitEmpty(&vout->p->control);
267 void vout_GetResetStatistic(vout_thread_t *vout, int *displayed, int *lost)
269 vout_statistic_GetReset( &vout->p->statistic, displayed, lost );
272 void vout_Flush(vout_thread_t *vout, mtime_t date)
274 vout_control_PushTime(&vout->p->control, VOUT_CONTROL_FLUSH, date);
275 vout_control_WaitEmpty(&vout->p->control);
278 void vout_Reset(vout_thread_t *vout)
280 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_RESET);
281 vout_control_WaitEmpty(&vout->p->control);
284 bool vout_IsEmpty(vout_thread_t *vout)
286 vlc_mutex_lock(&vout->p->picture_lock);
288 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
290 picture_Release(picture);
292 vlc_mutex_unlock(&vout->p->picture_lock);
297 void vout_FixLeaks( vout_thread_t *vout )
299 vlc_mutex_lock(&vout->p->picture_lock);
301 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
303 picture = picture_pool_Get(vout->p->decoder_pool);
307 picture_Release(picture);
308 /* Not all pictures has been displayed yet or some are
310 vlc_mutex_unlock(&vout->p->picture_lock);
314 /* There is no reason that no pictures are available, force one
315 * from the pool, becarefull with it though */
316 msg_Err(vout, "pictures leaked, trying to workaround");
319 picture_pool_NonEmpty(vout->p->decoder_pool, false);
321 vlc_mutex_unlock(&vout->p->picture_lock);
323 void vout_NextPicture(vout_thread_t *vout, mtime_t *duration)
325 vout_control_cmd_t cmd;
326 vout_control_cmd_Init(&cmd, VOUT_CONTROL_STEP);
327 cmd.u.time_ptr = duration;
329 vout_control_Push(&vout->p->control, &cmd);
330 vout_control_WaitEmpty(&vout->p->control);
333 void vout_DisplayTitle(vout_thread_t *vout, const char *title)
336 vout_control_PushString(&vout->p->control, VOUT_CONTROL_OSD_TITLE, title);
339 void vout_PutSubpicture( vout_thread_t *vout, subpicture_t *subpic )
341 spu_DisplaySubpicture(vout->p->p_spu, subpic);
343 int vout_RegisterSubpictureChannel( vout_thread_t *vout )
345 return spu_RegisterChannel(vout->p->p_spu);
347 void vout_FlushSubpictureChannel( vout_thread_t *vout, int channel )
349 spu_ClearChannel(vout->p->p_spu, channel);
352 /* vout_Control* are usable by anyone at anytime */
353 void vout_ControlChangeFullscreen(vout_thread_t *vout, bool fullscreen)
355 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_FULLSCREEN,
358 void vout_ControlChangeOnTop(vout_thread_t *vout, bool is_on_top)
360 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_ON_TOP,
363 void vout_ControlChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
365 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_DISPLAY_FILLED,
368 void vout_ControlChangeZoom(vout_thread_t *vout, int num, int den)
370 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ZOOM,
373 void vout_ControlChangeSampleAspectRatio(vout_thread_t *vout,
374 unsigned num, unsigned den)
376 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ASPECT_RATIO,
379 void vout_ControlChangeCropRatio(vout_thread_t *vout,
380 unsigned num, unsigned den)
382 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_CROP_RATIO,
385 void vout_ControlChangeCropWindow(vout_thread_t *vout,
386 int x, int y, int width, int height)
388 vout_control_cmd_t cmd;
389 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_WINDOW);
392 cmd.u.window.width = width;
393 cmd.u.window.height = height;
395 vout_control_Push(&vout->p->control, &cmd);
397 void vout_ControlChangeCropBorder(vout_thread_t *vout,
398 int left, int top, int right, int bottom)
400 vout_control_cmd_t cmd;
401 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_BORDER);
402 cmd.u.border.left = left;
403 cmd.u.border.top = top;
404 cmd.u.border.right = right;
405 cmd.u.border.bottom = bottom;
407 vout_control_Push(&vout->p->control, &cmd);
409 void vout_ControlChangeFilters(vout_thread_t *vout, const char *filters)
411 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_FILTERS,
414 void vout_ControlChangeSubFilters(vout_thread_t *vout, const char *filters)
416 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_FILTERS,
421 static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
423 /* Load configuration */
424 cfg->is_fullscreen = var_CreateGetBool(vout, "fullscreen");
425 cfg->display.title = title;
426 const int display_width = var_CreateGetInteger(vout, "width");
427 const int display_height = var_CreateGetInteger(vout, "height");
428 cfg->display.width = display_width > 0 ? display_width : 0;
429 cfg->display.height = display_height > 0 ? display_height : 0;
430 cfg->is_display_filled = var_CreateGetBool(vout, "autoscale");
431 cfg->display.sar.num = 1; /* TODO monitor AR */
432 cfg->display.sar.den = 1;
433 unsigned zoom_den = 1000;
434 unsigned zoom_num = zoom_den * var_CreateGetFloat(vout, "scale");
435 vlc_ureduce(&zoom_num, &zoom_den, zoom_num, zoom_den, 0);
436 cfg->zoom.num = zoom_num;
437 cfg->zoom.den = zoom_den;
438 cfg->align.vertical = VOUT_DISPLAY_ALIGN_CENTER;
439 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_CENTER;
440 const int align_mask = var_CreateGetInteger(vout, "align");
441 if (align_mask & 0x1)
442 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_LEFT;
443 else if (align_mask & 0x2)
444 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_RIGHT;
445 if (align_mask & 0x4)
446 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_TOP;
447 else if (align_mask & 0x8)
448 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_BOTTOM;
451 vout_window_t * vout_NewDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
452 const vout_window_cfg_t *cfg)
455 vout_window_cfg_t cfg_override = *cfg;
457 if (!var_InheritBool( vout, "embedded-video"))
458 cfg_override.is_standalone = true;
460 if (vout->p->window.is_unused && vout->p->window.object) {
461 assert(!vout->p->splitter_name);
462 if (!cfg_override.is_standalone == !vout->p->window.cfg.is_standalone &&
463 cfg_override.type == vout->p->window.cfg.type) {
464 /* Reuse the stored window */
465 msg_Dbg(vout, "Reusing previous vout window");
466 vout_window_t *window = vout->p->window.object;
467 if (cfg_override.width != vout->p->window.cfg.width ||
468 cfg_override.height != vout->p->window.cfg.height)
469 vout_window_SetSize(window,
470 cfg_override.width, cfg_override.height);
471 vout->p->window.is_unused = false;
472 vout->p->window.cfg = cfg_override;
476 vout_window_Delete(vout->p->window.object);
477 vout->p->window.is_unused = true;
478 vout->p->window.object = NULL;
481 vout_window_t *window = vout_window_New(VLC_OBJECT(vout), NULL,
485 if (!vout->p->splitter_name) {
486 vout->p->window.is_unused = false;
487 vout->p->window.cfg = cfg_override;
488 vout->p->window.object = window;
493 void vout_DeleteDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
494 vout_window_t *window)
497 if (!vout->p->window.is_unused && vout->p->window.object == window) {
498 vout->p->window.is_unused = true;
499 } else if (vout->p->window.is_unused && vout->p->window.object && !window) {
500 vout_window_Delete(vout->p->window.object);
501 vout->p->window.is_unused = true;
502 vout->p->window.object = NULL;
504 vout_window_Delete(window);
509 static picture_t *VoutVideoFilterNewPicture(filter_t *filter)
511 vout_thread_t *vout = (vout_thread_t*)filter->p_owner;
512 return picture_pool_Get(vout->p->private_pool);
514 static void VoutVideoFilterDelPicture(filter_t *filter, picture_t *picture)
517 picture_Release(picture);
519 static int VoutVideoFilterAllocationSetup(filter_t *filter, void *data)
521 filter->pf_video_buffer_new = VoutVideoFilterNewPicture;
522 filter->pf_video_buffer_del = VoutVideoFilterDelPicture;
523 filter->p_owner = data; /* vout */
528 static int ThreadDisplayPicture(vout_thread_t *vout,
529 bool now, mtime_t *deadline)
531 vout_display_t *vd = vout->p->display.vd;
532 int displayed_count = 0;
536 const mtime_t date = mdate();
537 const bool is_paused = vout->p->pause.is_on;
538 bool redisplay = is_paused && !now && vout->p->displayed.decoded;
541 /* FIXME/XXX we must redisplay the last decoded picture (because
542 * of potential vout updated, or filters update or SPU update)
543 * For now a high update period is needed but it coulmd be removed
545 * - vout module emits events from theselves.
546 * - *and* SPU is modified to emit an event or a deadline when needed.
548 * So it will be done latter.
551 picture_t *peek = picture_fifo_Peek(vout->p->decoder_fifo);
553 is_forced = peek->b_force || is_paused || now;
554 *deadline = (is_forced ? date : peek->date) - vout_chrono_GetHigh(&vout->p->render);
555 picture_Release(peek);
561 /* FIXME a better way for this delay is needed */
562 const mtime_t date_update = vout->p->displayed.date + VOUT_REDISPLAY_DELAY;
563 if (date_update > date || !vout->p->displayed.decoded) {
564 *deadline = vout->p->displayed.decoded ? date_update : VLC_TS_INVALID;
569 *deadline = date - vout_chrono_GetHigh(&vout->p->render);
571 if (*deadline > VOUT_MWAIT_TOLERANCE)
572 *deadline -= VOUT_MWAIT_TOLERANCE;
574 /* If we are too early and can wait, do it */
575 if (date < *deadline && !now)
580 decoded = vout->p->displayed.decoded;
581 vout->p->displayed.decoded = NULL;
583 decoded = picture_fifo_Pop(vout->p->decoder_fifo);
585 if (!is_forced && !vout->p->is_late_dropped) {
586 const mtime_t predicted = date + vout_chrono_GetLow(&vout->p->render);
587 const mtime_t late = predicted - decoded->date;
589 msg_Dbg(vout, "picture might be displayed late (missing %d ms)", (int)(late/1000));
590 if (late > VOUT_DISPLAY_LATE_THRESHOLD) {
591 msg_Warn(vout, "rejected picture because of render time");
593 picture_Release(decoded);
600 vout->p->displayed.is_interlaced = !decoded->b_progressive;
601 vout->p->displayed.qtype = decoded->i_qtype;
603 vout->p->displayed.timestamp = decoded->date;
606 if (vout->p->displayed.decoded)
607 picture_Release(vout->p->displayed.decoded);
608 picture_Hold(decoded);
609 vout->p->displayed.decoded = decoded;
612 vout_chrono_Start(&vout->p->render);
614 picture_t *filtered = NULL;
616 vlc_mutex_lock(&vout->p->vfilter_lock);
617 filtered = filter_chain_VideoFilter(vout->p->vfilter_chain, decoded);
618 //assert(filtered == decoded); // TODO implement
619 vlc_mutex_unlock(&vout->p->vfilter_lock);
625 * Check for subpictures to display
627 const bool do_snapshot = vout_snapshot_IsRequested(&vout->p->snapshot);
628 mtime_t spu_render_time = is_forced ? mdate() : filtered->date;
629 if (vout->p->pause.is_on)
630 spu_render_time = vout->p->pause.date;
632 spu_render_time = filtered->date > 1 ? filtered->date : mdate();
634 subpicture_t *subpic = spu_SortSubpictures(vout->p->p_spu,
641 * - be sure to end up with a direct buffer.
642 * - blend subtitles, and in a fast access buffer
644 picture_t *direct = NULL;
646 (vout->p->decoder_pool != vout->p->display_pool || subpic)) {
648 if (vout->p->is_decoder_pool_slow)
649 render = picture_NewFromFormat(&vd->source);
650 else if (vout->p->decoder_pool != vout->p->display_pool)
651 render = picture_pool_Get(vout->p->display_pool);
653 render = picture_pool_Get(vout->p->private_pool);
656 picture_Copy(render, filtered);
658 spu_RenderSubpictures(vout->p->p_spu,
660 subpic, &vd->source, spu_render_time);
662 if (vout->p->is_decoder_pool_slow) {
663 direct = picture_pool_Get(vout->p->display_pool);
665 picture_Copy(direct, render);
666 picture_Release(render);
671 picture_Release(filtered);
678 * Take a snapshot if requested
680 if (direct && do_snapshot)
681 vout_snapshot_Set(&vout->p->snapshot, &vd->source, direct);
683 /* Render the direct buffer returned by vout_RenderPicture */
685 vout_RenderWrapper(vout, direct);
687 vout_chrono_Stop(&vout->p->render);
692 msg_Info(vout, "render: avg %d ms var %d ms",
693 (int)(vout->p->render.avg/1000), (int)(vout->p->render.var/1000));
698 /* Wait the real date (for rendering jitter) */
700 mwait(decoded->date);
702 /* Display the direct buffer returned by vout_RenderPicture */
703 vout->p->displayed.date = mdate();
705 vout_DisplayWrapper(vout, direct);
711 vout_statistic_Update(&vout->p->statistic, displayed_count, lost_count);
712 if (displayed_count <= 0)
717 static void ThreadManage(vout_thread_t *vout,
719 vout_interlacing_support_t *interlacing,
720 vout_postprocessing_support_t *postprocessing)
722 vlc_mutex_lock(&vout->p->picture_lock);
724 *deadline = VLC_TS_INVALID;
725 ThreadDisplayPicture(vout, false, deadline);
727 const int picture_qtype = vout->p->displayed.qtype;
728 const bool picture_interlaced = vout->p->displayed.is_interlaced;
730 vlc_mutex_unlock(&vout->p->picture_lock);
732 /* Post processing */
733 vout_SetPostProcessingState(vout, postprocessing, picture_qtype);
736 vout_SetInterlacingState(vout, interlacing, picture_interlaced);
738 vout_ManageWrapper(vout);
741 static void ThreadDisplayOsdTitle(vout_thread_t *vout, const char *string)
743 if (!vout->p->title.show)
746 vout_OSDText(vout, SPU_DEFAULT_CHANNEL,
747 vout->p->title.position, INT64_C(1000) * vout->p->title.timeout,
751 static void ThreadChangeFilters(vout_thread_t *vout, const char *filters)
754 es_format_Init(&fmt, VIDEO_ES, vout->p->original.i_chroma);
755 fmt.video = vout->p->original;
757 vlc_mutex_lock(&vout->p->vfilter_lock);
759 filter_chain_Reset(vout->p->vfilter_chain, &fmt, &fmt);
760 if (filter_chain_AppendFromString(vout->p->vfilter_chain,
762 msg_Err(vout, "Video filter chain creation failed");
764 vlc_mutex_unlock(&vout->p->vfilter_lock);
767 static void ThreadChangeSubFilters(vout_thread_t *vout, const char *filters)
769 spu_ChangeFilters(vout->p->p_spu, filters);
772 static void ThreadChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
774 assert(!vout->p->pause.is_on || !is_paused);
776 if (vout->p->pause.is_on) {
777 const mtime_t duration = date - vout->p->pause.date;
779 if (vout->p->step.timestamp > VLC_TS_INVALID)
780 vout->p->step.timestamp += duration;
781 if (vout->p->step.last > VLC_TS_INVALID)
782 vout->p->step.last += duration;
783 picture_fifo_OffsetDate(vout->p->decoder_fifo, duration);
784 if (vout->p->displayed.decoded)
785 vout->p->displayed.decoded->date += duration;
787 spu_OffsetSubtitleDate(vout->p->p_spu, duration);
789 vout->p->step.timestamp = VLC_TS_INVALID;
790 vout->p->step.last = VLC_TS_INVALID;
792 vout->p->pause.is_on = is_paused;
793 vout->p->pause.date = date;
796 static void ThreadFlush(vout_thread_t *vout, bool below, mtime_t date)
798 vout->p->step.timestamp = VLC_TS_INVALID;
799 vout->p->step.last = VLC_TS_INVALID;
801 picture_t *last = vout->p->displayed.decoded;
803 if (( below && last->date <= date) ||
804 (!below && last->date >= date)) {
805 picture_Release(last);
807 vout->p->displayed.decoded = NULL;
808 vout->p->displayed.date = VLC_TS_INVALID;
809 vout->p->displayed.timestamp = VLC_TS_INVALID;
812 picture_fifo_Flush(vout->p->decoder_fifo, date, below);
815 static void ThreadReset(vout_thread_t *vout)
817 ThreadFlush(vout, true, INT64_MAX);
818 if (vout->p->decoder_pool)
819 picture_pool_NonEmpty(vout->p->decoder_pool, true);
820 vout->p->pause.is_on = false;
821 vout->p->pause.date = mdate();
824 static void ThreadStep(vout_thread_t *vout, mtime_t *duration)
828 if (vout->p->step.last <= VLC_TS_INVALID)
829 vout->p->step.last = vout->p->displayed.timestamp;
832 if (ThreadDisplayPicture(vout, true, &dummy))
835 vout->p->step.timestamp = vout->p->displayed.timestamp;
837 if (vout->p->step.last > VLC_TS_INVALID &&
838 vout->p->step.timestamp > vout->p->step.last) {
839 *duration = vout->p->step.timestamp - vout->p->step.last;
840 vout->p->step.last = vout->p->step.timestamp;
841 /* TODO advance subpicture by the duration ... */
845 static void ThreadChangeFullscreen(vout_thread_t *vout, bool fullscreen)
847 /* FIXME not sure setting "fullscreen" is good ... */
848 var_SetBool(vout, "fullscreen", fullscreen);
849 vout_SetDisplayFullscreen(vout->p->display.vd, fullscreen);
852 static void ThreadChangeOnTop(vout_thread_t *vout, bool is_on_top)
854 vout_SetWindowState(vout->p->display.vd,
855 is_on_top ? VOUT_WINDOW_STATE_ABOVE :
856 VOUT_WINDOW_STATE_NORMAL);
859 static void ThreadChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
861 vout_SetDisplayFilled(vout->p->display.vd, is_filled);
864 static void ThreadChangeZoom(vout_thread_t *vout, int num, int den)
866 if (num * 10 < den) {
869 } else if (num > den * 10) {
873 vout_SetDisplayZoom(vout->p->display.vd, num, den);
876 static void ThreadChangeAspectRatio(vout_thread_t *vout,
877 unsigned num, unsigned den)
879 const video_format_t *source = &vout->p->original;
881 if (num > 0 && den > 0) {
882 num *= source->i_visible_height;
883 den *= source->i_visible_width;
884 vlc_ureduce(&num, &den, num, den, 0);
886 vout_SetDisplayAspect(vout->p->display.vd, num, den);
890 static void ThreadExecuteCropWindow(vout_thread_t *vout,
891 unsigned crop_num, unsigned crop_den,
892 unsigned x, unsigned y,
893 unsigned width, unsigned height)
895 const video_format_t *source = &vout->p->original;
897 vout_SetDisplayCrop(vout->p->display.vd,
899 source->i_x_offset + x,
900 source->i_y_offset + y,
903 static void ThreadExecuteCropBorder(vout_thread_t *vout,
904 unsigned left, unsigned top,
905 unsigned right, unsigned bottom)
907 const video_format_t *source = &vout->p->original;
908 ThreadExecuteCropWindow(vout, 0, 0,
911 /* At worst, it becomes < 0 (but unsigned) and will be rejected */
912 source->i_visible_width - (left + right),
913 source->i_visible_height - (top + bottom));
916 static void ThreadExecuteCropRatio(vout_thread_t *vout,
917 unsigned num, unsigned den)
919 const video_format_t *source = &vout->p->original;
920 ThreadExecuteCropWindow(vout, num, den,
922 source->i_visible_width,
923 source->i_visible_height);
926 static int ThreadStart(vout_thread_t *vout, const vout_display_state_t *state)
928 vlc_mouse_Init(&vout->p->mouse);
929 vout->p->decoder_fifo = picture_fifo_New();
930 vout->p->decoder_pool = NULL;
931 vout->p->display_pool = NULL;
932 vout->p->private_pool = NULL;
934 vout->p->vfilter_chain =
935 filter_chain_New( vout, "video filter2", false,
936 VoutVideoFilterAllocationSetup, NULL, vout);
938 vout_display_state_t state_default;
940 VoutGetDisplayCfg(vout, &state_default.cfg, vout->p->display.title);
941 state_default.wm_state = var_CreateGetBool(vout, "video-on-top") ? VOUT_WINDOW_STATE_ABOVE :
942 VOUT_WINDOW_STATE_NORMAL;
943 state_default.sar.num = 0;
944 state_default.sar.den = 0;
946 state = &state_default;
949 if (vout_OpenWrapper(vout, vout->p->splitter_name, state))
951 if (vout_InitWrapper(vout))
953 assert(vout->p->decoder_pool);
955 vout->p->displayed.decoded = NULL;
956 vout->p->displayed.date = VLC_TS_INVALID;
957 vout->p->displayed.decoded = NULL;
958 vout->p->displayed.timestamp = VLC_TS_INVALID;
959 vout->p->displayed.qtype = QTYPE_NONE;
960 vout->p->displayed.is_interlaced = false;
962 vout->p->step.last = VLC_TS_INVALID;
963 vout->p->step.timestamp = VLC_TS_INVALID;
965 video_format_Print(VLC_OBJECT(vout), "original format", &vout->p->original);
969 static void ThreadStop(vout_thread_t *vout, vout_display_state_t *state)
971 /* Destroy the video filters2 */
972 filter_chain_Delete(vout->p->vfilter_chain);
974 /* Destroy translation tables */
975 if (vout->p->display.vd) {
976 if (vout->p->decoder_pool) {
977 ThreadFlush(vout, true, INT64_MAX);
978 vout_EndWrapper(vout);
980 vout_CloseWrapper(vout, state);
983 if (vout->p->decoder_fifo)
984 picture_fifo_Delete(vout->p->decoder_fifo);
985 assert(!vout->p->decoder_pool);
988 static void ThreadInit(vout_thread_t *vout)
990 vout->p->window.is_unused = true;
991 vout->p->window.object = NULL;
992 vout->p->dead = false;
993 vout->p->is_late_dropped = var_InheritBool(vout, "drop-late-frames");
994 vout->p->pause.is_on = false;
995 vout->p->pause.date = VLC_TS_INVALID;
997 vout_chrono_Init(&vout->p->render, 5, 10000); /* Arbitrary initial time */
1000 static void ThreadClean(vout_thread_t *vout)
1002 if (vout->p->window.object) {
1003 assert(vout->p->window.is_unused);
1004 vout_window_Delete(vout->p->window.object);
1006 vout_chrono_Clean(&vout->p->render);
1007 vout->p->dead = true;
1008 vout_control_Dead(&vout->p->control);
1011 static int ThreadReinit(vout_thread_t *vout,
1012 const vout_configuration_t *cfg)
1014 video_format_t original;
1015 if (VoutValidateFormat(&original, cfg->fmt)) {
1016 ThreadStop(vout, NULL);
1018 return VLC_EGENERIC;
1020 if (video_format_IsSimilar(&original, &vout->p->original))
1023 vout_display_state_t state;
1024 memset(&state, 0, sizeof(state));
1026 ThreadStop(vout, &state);
1028 if (!state.cfg.is_fullscreen) {
1029 state.cfg.display.width = 0;
1030 state.cfg.display.height = 0;
1034 /* FIXME current vout "variables" are not in sync here anymore
1035 * and I am not sure what to do */
1037 vout->p->original = original;
1038 if (ThreadStart(vout, &state)) {
1040 return VLC_EGENERIC;
1045 /*****************************************************************************
1046 * Thread: video output thread
1047 *****************************************************************************
1048 * Video output thread. This function does only returns when the thread is
1049 * terminated. It handles the pictures arriving in the video heap and the
1050 * display device events.
1051 *****************************************************************************/
1052 static void *Thread(void *object)
1054 vout_thread_t *vout = object;
1056 vout_interlacing_support_t interlacing = {
1057 .is_interlaced = false,
1060 vout_postprocessing_support_t postprocessing = {
1061 .qtype = QTYPE_NONE,
1064 mtime_t deadline = VLC_TS_INVALID;
1066 vout_control_cmd_t cmd;
1068 /* FIXME remove thoses ugly timeouts
1070 while (!vout_control_Pop(&vout->p->control, &cmd, deadline, 100000)) {
1072 case VOUT_CONTROL_INIT:
1074 if (ThreadStart(vout, NULL)) {
1075 ThreadStop(vout, NULL);
1080 case VOUT_CONTROL_CLEAN:
1081 ThreadStop(vout, NULL);
1084 case VOUT_CONTROL_REINIT:
1085 if (ThreadReinit(vout, cmd.u.cfg))
1088 case VOUT_CONTROL_OSD_TITLE:
1089 ThreadDisplayOsdTitle(vout, cmd.u.string);
1091 case VOUT_CONTROL_CHANGE_FILTERS:
1092 ThreadChangeFilters(vout, cmd.u.string);
1094 case VOUT_CONTROL_CHANGE_SUB_FILTERS:
1095 ThreadChangeSubFilters(vout, cmd.u.string);
1097 case VOUT_CONTROL_PAUSE:
1098 ThreadChangePause(vout, cmd.u.pause.is_on, cmd.u.pause.date);
1100 case VOUT_CONTROL_FLUSH:
1101 ThreadFlush(vout, false, cmd.u.time);
1103 case VOUT_CONTROL_RESET:
1106 case VOUT_CONTROL_STEP:
1107 ThreadStep(vout, cmd.u.time_ptr);
1109 case VOUT_CONTROL_FULLSCREEN:
1110 ThreadChangeFullscreen(vout, cmd.u.boolean);
1112 case VOUT_CONTROL_ON_TOP:
1113 ThreadChangeOnTop(vout, cmd.u.boolean);
1115 case VOUT_CONTROL_DISPLAY_FILLED:
1116 ThreadChangeDisplayFilled(vout, cmd.u.boolean);
1118 case VOUT_CONTROL_ZOOM:
1119 ThreadChangeZoom(vout, cmd.u.pair.a, cmd.u.pair.b);
1121 case VOUT_CONTROL_ASPECT_RATIO:
1122 ThreadChangeAspectRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1124 case VOUT_CONTROL_CROP_RATIO:
1125 ThreadExecuteCropRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1127 case VOUT_CONTROL_CROP_WINDOW:
1128 ThreadExecuteCropWindow(vout, 0, 0,
1129 cmd.u.window.x, cmd.u.window.y,
1130 cmd.u.window.width, cmd.u.window.height);
1132 case VOUT_CONTROL_CROP_BORDER:
1133 ThreadExecuteCropBorder(vout,
1134 cmd.u.border.left, cmd.u.border.top,
1135 cmd.u.border.right, cmd.u.border.bottom);
1140 vout_control_cmd_Clean(&cmd);
1143 ThreadManage(vout, &deadline, &interlacing, &postprocessing);