1 /*****************************************************************************
2 * video_output.c : video output thread
4 * This module describes the programming interface for video output threads.
5 * It includes functions allowing to open a new thread, send pictures to a
6 * thread, and destroy a previously oppened video output thread.
7 *****************************************************************************
8 * Copyright (C) 2000-2007 the VideoLAN team
11 * Authors: Vincent Seguin <seguin@via.ecp.fr>
12 * Gildas Bazin <gbazin@videolan.org>
13 * Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
15 * This program is free software; you can redistribute it and/or modify
16 * it under the terms of the GNU General Public License as published by
17 * the Free Software Foundation; either version 2 of the License, or
18 * (at your option) any later version.
20 * This program is distributed in the hope that it will be useful,
21 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
23 * GNU General Public License for more details.
25 * You should have received a copy of the GNU General Public License
26 * along with this program; if not, write to the Free Software
27 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
28 *****************************************************************************/
30 /*****************************************************************************
32 *****************************************************************************/
37 #include <vlc_common.h>
39 #include <stdlib.h> /* free() */
45 #include <vlc_filter.h>
46 #include <vlc_vout_osd.h>
49 #include "vout_internal.h"
50 #include "interlacing.h"
51 #include "postprocessing.h"
54 /*****************************************************************************
56 *****************************************************************************/
57 static void *Thread(void *);
58 static void VoutDestructor(vlc_object_t *);
60 /* Maximum delay between 2 displayed pictures.
61 * XXX it is needed for now but should be removed in the long term.
63 #define VOUT_REDISPLAY_DELAY (INT64_C(80000))
66 * Late pictures having a delay higher than this value are thrashed.
68 #define VOUT_DISPLAY_LATE_THRESHOLD (INT64_C(20000))
70 /* Better be in advance when awakening than late... */
71 #define VOUT_MWAIT_TOLERANCE (INT64_C(1000))
74 static int VoutValidateFormat(video_format_t *dst,
75 const video_format_t *src)
77 if (src->i_width <= 0 || src->i_height <= 0)
79 if (src->i_sar_num <= 0 || src->i_sar_den <= 0)
83 video_format_Copy(dst, src);
84 dst->i_chroma = vlc_fourcc_GetCodec(VIDEO_ES, src->i_chroma);
85 vlc_ureduce( &dst->i_sar_num, &dst->i_sar_den,
86 src->i_sar_num, src->i_sar_den, 50000 );
87 if (dst->i_sar_num <= 0 || dst->i_sar_den <= 0) {
91 video_format_FixRgb(dst);
95 static vout_thread_t *VoutCreate(vlc_object_t *object,
96 const vout_configuration_t *cfg)
98 video_format_t original;
99 if (VoutValidateFormat(&original, cfg->fmt))
102 /* Allocate descriptor */
103 vout_thread_t *vout = vlc_custom_create(object,
104 sizeof(*vout) + sizeof(*vout->p),
105 VLC_OBJECT_VOUT, "video output");
107 video_format_Clean(&original);
112 vout->p = (vout_thread_sys_t*)&vout[1];
114 vout->p->original = original;
115 vout->p->dpb_size = cfg->dpb_size;
117 vout_control_Init(&vout->p->control);
118 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_INIT);
120 vout_statistic_Init(&vout->p->statistic);
122 vout->p->i_par_den = 1;
124 vout_snapshot_Init(&vout->p->snapshot);
126 /* Initialize locks */
127 vlc_mutex_init(&vout->p->picture_lock);
128 vlc_mutex_init(&vout->p->vfilter_lock);
129 vlc_mutex_init(&vout->p->spu_lock);
131 /* Attach the new object now so we can use var inheritance below */
132 vlc_object_attach(vout, object);
134 /* Initialize subpicture unit */
135 vout->p->p_spu = spu_Create(vout);
137 /* Take care of some "interface/control" related initialisations */
140 /* Get splitter name if present */
141 char *splitter_name = var_GetNonEmptyString(vout, "vout-filter");
143 if (asprintf(&vout->p->splitter_name, "%s,none", splitter_name) < 0)
144 vout->p->splitter_name = NULL;
147 vout->p->splitter_name = NULL;
151 vout_InitInterlacingSupport(vout, vout->p->displayed.is_interlaced);
154 vlc_object_set_destructor(vout, VoutDestructor);
157 if (vlc_clone(&vout->p->thread, Thread, vout,
158 VLC_THREAD_PRIORITY_OUTPUT)) {
159 spu_Destroy(vout->p->p_spu);
160 vlc_object_release(vout);
164 vout_control_WaitEmpty(&vout->p->control);
167 msg_Err(vout, "video output creation failed");
168 vout_CloseAndRelease(vout);
172 vout->p->input = cfg->input;
174 spu_Attach(vout->p->p_spu, vout->p->input, true);
179 vout_thread_t *(vout_Request)(vlc_object_t *object,
180 const vout_configuration_t *cfg)
182 vout_thread_t *vout = cfg->vout;
183 if (cfg->change_fmt && !cfg->fmt) {
185 vout_CloseAndRelease(vout);
189 /* If a vout is provided, try reusing it */
191 if (vout->p->input != cfg->input) {
193 spu_Attach(vout->p->p_spu, vout->p->input, false);
194 vout->p->input = cfg->input;
196 spu_Attach(vout->p->p_spu, vout->p->input, true);
199 if (cfg->change_fmt) {
200 vout_control_cmd_t cmd;
201 vout_control_cmd_Init(&cmd, VOUT_CONTROL_REINIT);
204 vout_control_Push(&vout->p->control, &cmd);
205 vout_control_WaitEmpty(&vout->p->control);
208 if (!vout->p->dead) {
209 msg_Dbg(object, "reusing provided vout");
212 vout_CloseAndRelease(vout);
214 msg_Warn(object, "cannot reuse provided vout");
216 return VoutCreate(object, cfg);
219 void vout_Close(vout_thread_t *vout)
224 spu_Attach(vout->p->p_spu, vout->p->input, false);
226 vout_snapshot_End(&vout->p->snapshot);
228 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_CLEAN);
229 vlc_join(vout->p->thread, NULL);
231 vlc_mutex_lock(&vout->p->spu_lock);
232 spu_Destroy(vout->p->p_spu);
233 vout->p->p_spu = NULL;
234 vlc_mutex_unlock(&vout->p->spu_lock);
238 static void VoutDestructor(vlc_object_t *object)
240 vout_thread_t *vout = (vout_thread_t *)object;
242 /* Make sure the vout was stopped first */
243 //assert(!vout->p_module);
245 free(vout->p->splitter_name);
247 /* Destroy the locks */
248 vlc_mutex_destroy(&vout->p->spu_lock);
249 vlc_mutex_destroy(&vout->p->picture_lock);
250 vlc_mutex_destroy(&vout->p->vfilter_lock);
251 vout_control_Clean(&vout->p->control);
254 vout_statistic_Clean(&vout->p->statistic);
257 vout_snapshot_Clean(&vout->p->snapshot);
259 video_format_Clean(&vout->p->original);
263 void vout_ChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
265 vout_control_cmd_t cmd;
266 vout_control_cmd_Init(&cmd, VOUT_CONTROL_PAUSE);
267 cmd.u.pause.is_on = is_paused;
268 cmd.u.pause.date = date;
269 vout_control_Push(&vout->p->control, &cmd);
271 vout_control_WaitEmpty(&vout->p->control);
274 void vout_GetResetStatistic(vout_thread_t *vout, int *displayed, int *lost)
276 vout_statistic_GetReset( &vout->p->statistic, displayed, lost );
279 void vout_Flush(vout_thread_t *vout, mtime_t date)
281 vout_control_PushTime(&vout->p->control, VOUT_CONTROL_FLUSH, date);
282 vout_control_WaitEmpty(&vout->p->control);
285 void vout_Reset(vout_thread_t *vout)
287 vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_RESET);
288 vout_control_WaitEmpty(&vout->p->control);
291 bool vout_IsEmpty(vout_thread_t *vout)
293 vlc_mutex_lock(&vout->p->picture_lock);
295 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
297 picture_Release(picture);
299 vlc_mutex_unlock(&vout->p->picture_lock);
304 void vout_FixLeaks( vout_thread_t *vout )
306 vlc_mutex_lock(&vout->p->picture_lock);
308 picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
310 picture = picture_pool_Get(vout->p->decoder_pool);
314 picture_Release(picture);
315 /* Not all pictures has been displayed yet or some are
317 vlc_mutex_unlock(&vout->p->picture_lock);
321 /* There is no reason that no pictures are available, force one
322 * from the pool, becarefull with it though */
323 msg_Err(vout, "pictures leaked, trying to workaround");
326 picture_pool_NonEmpty(vout->p->decoder_pool, false);
328 vlc_mutex_unlock(&vout->p->picture_lock);
330 void vout_NextPicture(vout_thread_t *vout, mtime_t *duration)
332 vout_control_cmd_t cmd;
333 vout_control_cmd_Init(&cmd, VOUT_CONTROL_STEP);
334 cmd.u.time_ptr = duration;
336 vout_control_Push(&vout->p->control, &cmd);
337 vout_control_WaitEmpty(&vout->p->control);
340 void vout_DisplayTitle(vout_thread_t *vout, const char *title)
343 vout_control_PushString(&vout->p->control, VOUT_CONTROL_OSD_TITLE, title);
346 void vout_PutSubpicture( vout_thread_t *vout, subpicture_t *subpic )
348 vout_control_cmd_t cmd;
349 vout_control_cmd_Init(&cmd, VOUT_CONTROL_SUBPICTURE);
350 cmd.u.subpicture = subpic;
352 vout_control_Push(&vout->p->control, &cmd);
354 int vout_RegisterSubpictureChannel( vout_thread_t *vout )
356 int channel = SPU_DEFAULT_CHANNEL;
358 vlc_mutex_lock(&vout->p->spu_lock);
360 channel = spu_RegisterChannel(vout->p->p_spu);
361 vlc_mutex_unlock(&vout->p->spu_lock);
365 void vout_FlushSubpictureChannel( vout_thread_t *vout, int channel )
367 vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_FLUSH_SUBPICTURE,
371 /* vout_Control* are usable by anyone at anytime */
372 void vout_ControlChangeFullscreen(vout_thread_t *vout, bool fullscreen)
374 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_FULLSCREEN,
377 void vout_ControlChangeOnTop(vout_thread_t *vout, bool is_on_top)
379 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_ON_TOP,
382 void vout_ControlChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
384 vout_control_PushBool(&vout->p->control, VOUT_CONTROL_DISPLAY_FILLED,
387 void vout_ControlChangeZoom(vout_thread_t *vout, int num, int den)
389 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ZOOM,
392 void vout_ControlChangeSampleAspectRatio(vout_thread_t *vout,
393 unsigned num, unsigned den)
395 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ASPECT_RATIO,
398 void vout_ControlChangeCropRatio(vout_thread_t *vout,
399 unsigned num, unsigned den)
401 vout_control_PushPair(&vout->p->control, VOUT_CONTROL_CROP_RATIO,
404 void vout_ControlChangeCropWindow(vout_thread_t *vout,
405 int x, int y, int width, int height)
407 vout_control_cmd_t cmd;
408 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_WINDOW);
411 cmd.u.window.width = width;
412 cmd.u.window.height = height;
414 vout_control_Push(&vout->p->control, &cmd);
416 void vout_ControlChangeCropBorder(vout_thread_t *vout,
417 int left, int top, int right, int bottom)
419 vout_control_cmd_t cmd;
420 vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_BORDER);
421 cmd.u.border.left = left;
422 cmd.u.border.top = top;
423 cmd.u.border.right = right;
424 cmd.u.border.bottom = bottom;
426 vout_control_Push(&vout->p->control, &cmd);
428 void vout_ControlChangeFilters(vout_thread_t *vout, const char *filters)
430 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_FILTERS,
433 void vout_ControlChangeSubFilters(vout_thread_t *vout, const char *filters)
435 vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_FILTERS,
438 void vout_ControlChangeSubMargin(vout_thread_t *vout, int margin)
440 vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_MARGIN,
445 static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
447 /* Load configuration */
448 cfg->is_fullscreen = var_CreateGetBool(vout, "fullscreen");
449 cfg->display.title = title;
450 const int display_width = var_CreateGetInteger(vout, "width");
451 const int display_height = var_CreateGetInteger(vout, "height");
452 cfg->display.width = display_width > 0 ? display_width : 0;
453 cfg->display.height = display_height > 0 ? display_height : 0;
454 cfg->is_display_filled = var_CreateGetBool(vout, "autoscale");
455 cfg->display.sar.num = 1; /* TODO monitor AR */
456 cfg->display.sar.den = 1;
457 unsigned zoom_den = 1000;
458 unsigned zoom_num = zoom_den * var_CreateGetFloat(vout, "scale");
459 vlc_ureduce(&zoom_num, &zoom_den, zoom_num, zoom_den, 0);
460 cfg->zoom.num = zoom_num;
461 cfg->zoom.den = zoom_den;
462 cfg->align.vertical = VOUT_DISPLAY_ALIGN_CENTER;
463 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_CENTER;
464 const int align_mask = var_CreateGetInteger(vout, "align");
465 if (align_mask & 0x1)
466 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_LEFT;
467 else if (align_mask & 0x2)
468 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_RIGHT;
469 if (align_mask & 0x4)
470 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_TOP;
471 else if (align_mask & 0x8)
472 cfg->align.horizontal = VOUT_DISPLAY_ALIGN_BOTTOM;
475 vout_window_t * vout_NewDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
476 const vout_window_cfg_t *cfg)
479 vout_window_cfg_t cfg_override = *cfg;
481 if (!var_InheritBool( vout, "embedded-video"))
482 cfg_override.is_standalone = true;
484 if (vout->p->window.is_unused && vout->p->window.object) {
485 assert(!vout->p->splitter_name);
486 if (!cfg_override.is_standalone == !vout->p->window.cfg.is_standalone &&
487 cfg_override.type == vout->p->window.cfg.type) {
488 /* Reuse the stored window */
489 msg_Dbg(vout, "Reusing previous vout window");
490 vout_window_t *window = vout->p->window.object;
491 if (cfg_override.width != vout->p->window.cfg.width ||
492 cfg_override.height != vout->p->window.cfg.height)
493 vout_window_SetSize(window,
494 cfg_override.width, cfg_override.height);
495 vout->p->window.is_unused = false;
496 vout->p->window.cfg = cfg_override;
500 vout_window_Delete(vout->p->window.object);
501 vout->p->window.is_unused = true;
502 vout->p->window.object = NULL;
505 vout_window_t *window = vout_window_New(VLC_OBJECT(vout), NULL,
509 if (!vout->p->splitter_name) {
510 vout->p->window.is_unused = false;
511 vout->p->window.cfg = cfg_override;
512 vout->p->window.object = window;
517 void vout_DeleteDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
518 vout_window_t *window)
521 if (!vout->p->window.is_unused && vout->p->window.object == window) {
522 vout->p->window.is_unused = true;
523 } else if (vout->p->window.is_unused && vout->p->window.object && !window) {
524 vout_window_Delete(vout->p->window.object);
525 vout->p->window.is_unused = true;
526 vout->p->window.object = NULL;
528 vout_window_Delete(window);
533 static picture_t *VoutVideoFilterNewPicture(filter_t *filter)
535 vout_thread_t *vout = (vout_thread_t*)filter->p_owner;
536 return picture_pool_Get(vout->p->private_pool);
538 static void VoutVideoFilterDelPicture(filter_t *filter, picture_t *picture)
541 picture_Release(picture);
543 static int VoutVideoFilterAllocationSetup(filter_t *filter, void *data)
545 filter->pf_video_buffer_new = VoutVideoFilterNewPicture;
546 filter->pf_video_buffer_del = VoutVideoFilterDelPicture;
547 filter->p_owner = data; /* vout */
552 static int ThreadDisplayPicture(vout_thread_t *vout,
553 bool now, mtime_t *deadline)
555 vout_display_t *vd = vout->p->display.vd;
556 int displayed_count = 0;
560 const mtime_t date = mdate();
561 const bool is_paused = vout->p->pause.is_on;
562 bool redisplay = is_paused && !now && vout->p->displayed.decoded;
565 /* FIXME/XXX we must redisplay the last decoded picture (because
566 * of potential vout updated, or filters update or SPU update)
567 * For now a high update period is needed but it coulmd be removed
569 * - vout module emits events from theselves.
570 * - *and* SPU is modified to emit an event or a deadline when needed.
572 * So it will be done latter.
575 picture_t *peek = picture_fifo_Peek(vout->p->decoder_fifo);
577 is_forced = peek->b_force || is_paused || now;
578 *deadline = (is_forced ? date : peek->date) - vout_chrono_GetHigh(&vout->p->render);
579 picture_Release(peek);
585 /* FIXME a better way for this delay is needed */
586 const mtime_t date_update = vout->p->displayed.date + VOUT_REDISPLAY_DELAY;
587 if (date_update > date || !vout->p->displayed.decoded) {
588 *deadline = vout->p->displayed.decoded ? date_update : VLC_TS_INVALID;
593 *deadline = date - vout_chrono_GetHigh(&vout->p->render);
595 if (*deadline > VOUT_MWAIT_TOLERANCE)
596 *deadline -= VOUT_MWAIT_TOLERANCE;
598 /* If we are too early and can wait, do it */
599 if (date < *deadline && !now)
604 decoded = vout->p->displayed.decoded;
605 vout->p->displayed.decoded = NULL;
607 decoded = picture_fifo_Pop(vout->p->decoder_fifo);
609 if (!is_forced && !vout->p->is_late_dropped) {
610 const mtime_t predicted = date + vout_chrono_GetLow(&vout->p->render);
611 const mtime_t late = predicted - decoded->date;
613 msg_Dbg(vout, "picture might be displayed late (missing %d ms)", (int)(late/1000));
614 if (late > VOUT_DISPLAY_LATE_THRESHOLD) {
615 msg_Warn(vout, "rejected picture because of render time");
617 picture_Release(decoded);
624 vout->p->displayed.is_interlaced = !decoded->b_progressive;
625 vout->p->displayed.qtype = decoded->i_qtype;
627 vout->p->displayed.timestamp = decoded->date;
630 if (vout->p->displayed.decoded)
631 picture_Release(vout->p->displayed.decoded);
632 picture_Hold(decoded);
633 vout->p->displayed.decoded = decoded;
636 vout_chrono_Start(&vout->p->render);
638 picture_t *filtered = NULL;
640 vlc_mutex_lock(&vout->p->vfilter_lock);
641 filtered = filter_chain_VideoFilter(vout->p->vfilter_chain, decoded);
642 //assert(filtered == decoded); // TODO implement
643 vlc_mutex_unlock(&vout->p->vfilter_lock);
649 * Check for subpictures to display
651 const bool do_snapshot = vout_snapshot_IsRequested(&vout->p->snapshot);
652 mtime_t spu_render_time = is_forced ? mdate() : filtered->date;
653 if (vout->p->pause.is_on)
654 spu_render_time = vout->p->pause.date;
656 spu_render_time = filtered->date > 1 ? filtered->date : mdate();
658 subpicture_t *subpic = spu_SortSubpictures(vout->p->p_spu,
665 * - be sure to end up with a direct buffer.
666 * - blend subtitles, and in a fast access buffer
668 picture_t *direct = NULL;
670 (vout->p->decoder_pool != vout->p->display_pool || subpic)) {
672 if (vout->p->is_decoder_pool_slow)
673 render = picture_NewFromFormat(&vd->source);
674 else if (vout->p->decoder_pool != vout->p->display_pool)
675 render = picture_pool_Get(vout->p->display_pool);
677 render = picture_pool_Get(vout->p->private_pool);
680 picture_Copy(render, filtered);
682 spu_RenderSubpictures(vout->p->p_spu,
684 subpic, &vd->source, spu_render_time);
686 if (vout->p->is_decoder_pool_slow) {
687 direct = picture_pool_Get(vout->p->display_pool);
689 picture_Copy(direct, render);
690 picture_Release(render);
695 picture_Release(filtered);
702 * Take a snapshot if requested
704 if (direct && do_snapshot)
705 vout_snapshot_Set(&vout->p->snapshot, &vd->source, direct);
707 /* Render the direct buffer returned by vout_RenderPicture */
709 vout_RenderWrapper(vout, direct);
711 vout_chrono_Stop(&vout->p->render);
716 msg_Info(vout, "render: avg %d ms var %d ms",
717 (int)(vout->p->render.avg/1000), (int)(vout->p->render.var/1000));
722 /* Wait the real date (for rendering jitter) */
724 mwait(decoded->date);
726 /* Display the direct buffer returned by vout_RenderPicture */
727 vout->p->displayed.date = mdate();
729 vout_DisplayWrapper(vout, direct);
735 vout_statistic_Update(&vout->p->statistic, displayed_count, lost_count);
736 if (displayed_count <= 0)
741 static void ThreadManage(vout_thread_t *vout,
743 vout_interlacing_support_t *interlacing,
744 vout_postprocessing_support_t *postprocessing)
746 vlc_mutex_lock(&vout->p->picture_lock);
748 *deadline = VLC_TS_INVALID;
749 ThreadDisplayPicture(vout, false, deadline);
751 const int picture_qtype = vout->p->displayed.qtype;
752 const bool picture_interlaced = vout->p->displayed.is_interlaced;
754 vlc_mutex_unlock(&vout->p->picture_lock);
756 /* Post processing */
757 vout_SetPostProcessingState(vout, postprocessing, picture_qtype);
760 vout_SetInterlacingState(vout, interlacing, picture_interlaced);
762 vout_ManageWrapper(vout);
765 static void ThreadDisplaySubpicture(vout_thread_t *vout,
766 subpicture_t *subpicture)
768 spu_DisplaySubpicture(vout->p->p_spu, subpicture);
771 static void ThreadFlushSubpicture(vout_thread_t *vout, int channel)
773 spu_ClearChannel(vout->p->p_spu, channel);
776 static void ThreadDisplayOsdTitle(vout_thread_t *vout, const char *string)
778 if (!vout->p->title.show)
781 vout_OSDText(vout, SPU_DEFAULT_CHANNEL,
782 vout->p->title.position, INT64_C(1000) * vout->p->title.timeout,
786 static void ThreadChangeFilters(vout_thread_t *vout, const char *filters)
789 es_format_Init(&fmt, VIDEO_ES, vout->p->original.i_chroma);
790 fmt.video = vout->p->original;
792 vlc_mutex_lock(&vout->p->vfilter_lock);
794 filter_chain_Reset(vout->p->vfilter_chain, &fmt, &fmt);
795 if (filter_chain_AppendFromString(vout->p->vfilter_chain,
797 msg_Err(vout, "Video filter chain creation failed");
799 vlc_mutex_unlock(&vout->p->vfilter_lock);
802 static void ThreadChangeSubFilters(vout_thread_t *vout, const char *filters)
804 spu_ChangeFilters(vout->p->p_spu, filters);
806 static void ThreadChangeSubMargin(vout_thread_t *vout, int margin)
808 spu_ChangeMargin(vout->p->p_spu, margin);
811 static void ThreadChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
813 assert(!vout->p->pause.is_on || !is_paused);
815 if (vout->p->pause.is_on) {
816 const mtime_t duration = date - vout->p->pause.date;
818 if (vout->p->step.timestamp > VLC_TS_INVALID)
819 vout->p->step.timestamp += duration;
820 if (vout->p->step.last > VLC_TS_INVALID)
821 vout->p->step.last += duration;
822 picture_fifo_OffsetDate(vout->p->decoder_fifo, duration);
823 if (vout->p->displayed.decoded)
824 vout->p->displayed.decoded->date += duration;
826 spu_OffsetSubtitleDate(vout->p->p_spu, duration);
828 vout->p->step.timestamp = VLC_TS_INVALID;
829 vout->p->step.last = VLC_TS_INVALID;
831 vout->p->pause.is_on = is_paused;
832 vout->p->pause.date = date;
835 static void ThreadFlush(vout_thread_t *vout, bool below, mtime_t date)
837 vout->p->step.timestamp = VLC_TS_INVALID;
838 vout->p->step.last = VLC_TS_INVALID;
840 picture_t *last = vout->p->displayed.decoded;
842 if (( below && last->date <= date) ||
843 (!below && last->date >= date)) {
844 picture_Release(last);
846 vout->p->displayed.decoded = NULL;
847 vout->p->displayed.date = VLC_TS_INVALID;
848 vout->p->displayed.timestamp = VLC_TS_INVALID;
851 picture_fifo_Flush(vout->p->decoder_fifo, date, below);
854 static void ThreadReset(vout_thread_t *vout)
856 ThreadFlush(vout, true, INT64_MAX);
857 if (vout->p->decoder_pool)
858 picture_pool_NonEmpty(vout->p->decoder_pool, true);
859 vout->p->pause.is_on = false;
860 vout->p->pause.date = mdate();
863 static void ThreadStep(vout_thread_t *vout, mtime_t *duration)
867 if (vout->p->step.last <= VLC_TS_INVALID)
868 vout->p->step.last = vout->p->displayed.timestamp;
871 if (ThreadDisplayPicture(vout, true, &dummy))
874 vout->p->step.timestamp = vout->p->displayed.timestamp;
876 if (vout->p->step.last > VLC_TS_INVALID &&
877 vout->p->step.timestamp > vout->p->step.last) {
878 *duration = vout->p->step.timestamp - vout->p->step.last;
879 vout->p->step.last = vout->p->step.timestamp;
880 /* TODO advance subpicture by the duration ... */
884 static void ThreadChangeFullscreen(vout_thread_t *vout, bool fullscreen)
886 /* FIXME not sure setting "fullscreen" is good ... */
887 var_SetBool(vout, "fullscreen", fullscreen);
888 vout_SetDisplayFullscreen(vout->p->display.vd, fullscreen);
891 static void ThreadChangeOnTop(vout_thread_t *vout, bool is_on_top)
893 vout_SetWindowState(vout->p->display.vd,
894 is_on_top ? VOUT_WINDOW_STATE_ABOVE :
895 VOUT_WINDOW_STATE_NORMAL);
898 static void ThreadChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
900 vout_SetDisplayFilled(vout->p->display.vd, is_filled);
903 static void ThreadChangeZoom(vout_thread_t *vout, int num, int den)
905 if (num * 10 < den) {
908 } else if (num > den * 10) {
912 vout_SetDisplayZoom(vout->p->display.vd, num, den);
915 static void ThreadChangeAspectRatio(vout_thread_t *vout,
916 unsigned num, unsigned den)
918 const video_format_t *source = &vout->p->original;
920 if (num > 0 && den > 0) {
921 num *= source->i_visible_height;
922 den *= source->i_visible_width;
923 vlc_ureduce(&num, &den, num, den, 0);
925 vout_SetDisplayAspect(vout->p->display.vd, num, den);
929 static void ThreadExecuteCropWindow(vout_thread_t *vout,
930 unsigned crop_num, unsigned crop_den,
931 unsigned x, unsigned y,
932 unsigned width, unsigned height)
934 const video_format_t *source = &vout->p->original;
936 vout_SetDisplayCrop(vout->p->display.vd,
938 source->i_x_offset + x,
939 source->i_y_offset + y,
942 static void ThreadExecuteCropBorder(vout_thread_t *vout,
943 unsigned left, unsigned top,
944 unsigned right, unsigned bottom)
946 const video_format_t *source = &vout->p->original;
947 ThreadExecuteCropWindow(vout, 0, 0,
950 /* At worst, it becomes < 0 (but unsigned) and will be rejected */
951 source->i_visible_width - (left + right),
952 source->i_visible_height - (top + bottom));
955 static void ThreadExecuteCropRatio(vout_thread_t *vout,
956 unsigned num, unsigned den)
958 const video_format_t *source = &vout->p->original;
959 ThreadExecuteCropWindow(vout, num, den,
961 source->i_visible_width,
962 source->i_visible_height);
965 static int ThreadStart(vout_thread_t *vout, const vout_display_state_t *state)
967 vlc_mouse_Init(&vout->p->mouse);
968 vout->p->decoder_fifo = picture_fifo_New();
969 vout->p->decoder_pool = NULL;
970 vout->p->display_pool = NULL;
971 vout->p->private_pool = NULL;
973 vout->p->vfilter_chain =
974 filter_chain_New( vout, "video filter2", false,
975 VoutVideoFilterAllocationSetup, NULL, vout);
977 vout_display_state_t state_default;
979 VoutGetDisplayCfg(vout, &state_default.cfg, vout->p->display.title);
980 state_default.wm_state = var_CreateGetBool(vout, "video-on-top") ? VOUT_WINDOW_STATE_ABOVE :
981 VOUT_WINDOW_STATE_NORMAL;
982 state_default.sar.num = 0;
983 state_default.sar.den = 0;
985 state = &state_default;
988 if (vout_OpenWrapper(vout, vout->p->splitter_name, state))
990 if (vout_InitWrapper(vout))
992 assert(vout->p->decoder_pool);
994 vout->p->displayed.decoded = NULL;
995 vout->p->displayed.date = VLC_TS_INVALID;
996 vout->p->displayed.decoded = NULL;
997 vout->p->displayed.timestamp = VLC_TS_INVALID;
998 vout->p->displayed.qtype = QTYPE_NONE;
999 vout->p->displayed.is_interlaced = false;
1001 vout->p->step.last = VLC_TS_INVALID;
1002 vout->p->step.timestamp = VLC_TS_INVALID;
1004 video_format_Print(VLC_OBJECT(vout), "original format", &vout->p->original);
1008 static void ThreadStop(vout_thread_t *vout, vout_display_state_t *state)
1010 /* Destroy the video filters2 */
1011 filter_chain_Delete(vout->p->vfilter_chain);
1013 /* Destroy translation tables */
1014 if (vout->p->display.vd) {
1015 if (vout->p->decoder_pool) {
1016 ThreadFlush(vout, true, INT64_MAX);
1017 vout_EndWrapper(vout);
1019 vout_CloseWrapper(vout, state);
1022 if (vout->p->decoder_fifo)
1023 picture_fifo_Delete(vout->p->decoder_fifo);
1024 assert(!vout->p->decoder_pool);
1027 static void ThreadInit(vout_thread_t *vout)
1029 vout->p->window.is_unused = true;
1030 vout->p->window.object = NULL;
1031 vout->p->dead = false;
1032 vout->p->is_late_dropped = var_InheritBool(vout, "drop-late-frames");
1033 vout->p->pause.is_on = false;
1034 vout->p->pause.date = VLC_TS_INVALID;
1036 vout_chrono_Init(&vout->p->render, 5, 10000); /* Arbitrary initial time */
1039 static void ThreadClean(vout_thread_t *vout)
1041 if (vout->p->window.object) {
1042 assert(vout->p->window.is_unused);
1043 vout_window_Delete(vout->p->window.object);
1045 vout_chrono_Clean(&vout->p->render);
1046 vout->p->dead = true;
1047 vout_control_Dead(&vout->p->control);
1050 static int ThreadReinit(vout_thread_t *vout,
1051 const vout_configuration_t *cfg)
1053 video_format_t original;
1054 if (VoutValidateFormat(&original, cfg->fmt)) {
1055 ThreadStop(vout, NULL);
1057 return VLC_EGENERIC;
1059 if (video_format_IsSimilar(&original, &vout->p->original)) {
1060 if (cfg->dpb_size <= vout->p->dpb_size)
1062 msg_Warn(vout, "DPB need to be increased");
1065 vout_display_state_t state;
1066 memset(&state, 0, sizeof(state));
1068 ThreadStop(vout, &state);
1070 if (!state.cfg.is_fullscreen) {
1071 state.cfg.display.width = 0;
1072 state.cfg.display.height = 0;
1076 /* FIXME current vout "variables" are not in sync here anymore
1077 * and I am not sure what to do */
1079 vout->p->original = original;
1080 vout->p->dpb_size = cfg->dpb_size;
1081 if (ThreadStart(vout, &state)) {
1083 return VLC_EGENERIC;
1088 /*****************************************************************************
1089 * Thread: video output thread
1090 *****************************************************************************
1091 * Video output thread. This function does only returns when the thread is
1092 * terminated. It handles the pictures arriving in the video heap and the
1093 * display device events.
1094 *****************************************************************************/
1095 static void *Thread(void *object)
1097 vout_thread_t *vout = object;
1099 vout_interlacing_support_t interlacing = {
1100 .is_interlaced = false,
1103 vout_postprocessing_support_t postprocessing = {
1104 .qtype = QTYPE_NONE,
1107 mtime_t deadline = VLC_TS_INVALID;
1109 vout_control_cmd_t cmd;
1111 /* FIXME remove thoses ugly timeouts
1113 while (!vout_control_Pop(&vout->p->control, &cmd, deadline, 100000)) {
1115 case VOUT_CONTROL_INIT:
1117 if (ThreadStart(vout, NULL)) {
1118 ThreadStop(vout, NULL);
1123 case VOUT_CONTROL_CLEAN:
1124 ThreadStop(vout, NULL);
1127 case VOUT_CONTROL_REINIT:
1128 if (ThreadReinit(vout, cmd.u.cfg))
1131 case VOUT_CONTROL_SUBPICTURE:
1132 ThreadDisplaySubpicture(vout, cmd.u.subpicture);
1133 cmd.u.subpicture = NULL;
1135 case VOUT_CONTROL_FLUSH_SUBPICTURE:
1136 ThreadFlushSubpicture(vout, cmd.u.integer);
1138 case VOUT_CONTROL_OSD_TITLE:
1139 ThreadDisplayOsdTitle(vout, cmd.u.string);
1141 case VOUT_CONTROL_CHANGE_FILTERS:
1142 ThreadChangeFilters(vout, cmd.u.string);
1144 case VOUT_CONTROL_CHANGE_SUB_FILTERS:
1145 ThreadChangeSubFilters(vout, cmd.u.string);
1147 case VOUT_CONTROL_CHANGE_SUB_MARGIN:
1148 ThreadChangeSubMargin(vout, cmd.u.integer);
1150 case VOUT_CONTROL_PAUSE:
1151 ThreadChangePause(vout, cmd.u.pause.is_on, cmd.u.pause.date);
1153 case VOUT_CONTROL_FLUSH:
1154 ThreadFlush(vout, false, cmd.u.time);
1156 case VOUT_CONTROL_RESET:
1159 case VOUT_CONTROL_STEP:
1160 ThreadStep(vout, cmd.u.time_ptr);
1162 case VOUT_CONTROL_FULLSCREEN:
1163 ThreadChangeFullscreen(vout, cmd.u.boolean);
1165 case VOUT_CONTROL_ON_TOP:
1166 ThreadChangeOnTop(vout, cmd.u.boolean);
1168 case VOUT_CONTROL_DISPLAY_FILLED:
1169 ThreadChangeDisplayFilled(vout, cmd.u.boolean);
1171 case VOUT_CONTROL_ZOOM:
1172 ThreadChangeZoom(vout, cmd.u.pair.a, cmd.u.pair.b);
1174 case VOUT_CONTROL_ASPECT_RATIO:
1175 ThreadChangeAspectRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1177 case VOUT_CONTROL_CROP_RATIO:
1178 ThreadExecuteCropRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1180 case VOUT_CONTROL_CROP_WINDOW:
1181 ThreadExecuteCropWindow(vout, 0, 0,
1182 cmd.u.window.x, cmd.u.window.y,
1183 cmd.u.window.width, cmd.u.window.height);
1185 case VOUT_CONTROL_CROP_BORDER:
1186 ThreadExecuteCropBorder(vout,
1187 cmd.u.border.left, cmd.u.border.top,
1188 cmd.u.border.right, cmd.u.border.bottom);
1193 vout_control_cmd_Clean(&cmd);
1196 ThreadManage(vout, &deadline, &interlacing, &postprocessing);