git.sesse.net Git - vlc/blob - src/video_output/video_output.c

   1 /*****************************************************************************
   2  * video_output.c : video output thread
   3  *
   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
   9  * $Id$
  10  *
  11  * Authors: Vincent Seguin <seguin@via.ecp.fr>
  12  *          Gildas Bazin <gbazin@videolan.org>
  13  *          Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
  14  *
  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.
  19  *
  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.
  24  *
  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  *****************************************************************************/
  29
  30 /*****************************************************************************
  31  * Preamble
  32  *****************************************************************************/
  33 #ifdef HAVE_CONFIG_H
  34 # include "config.h"
  35 #endif
  36
  37 #include <vlc_common.h>
  38
  39 #include <stdlib.h>                                                /* free() */
  40 #include <string.h>
  41 #include <assert.h>
  42
  43 #include <vlc_vout.h>
  44
  45 #include <vlc_filter.h>
  46 #include <vlc_vout_osd.h>
  47
  48 #include <libvlc.h>
  49 #include "vout_internal.h"
  50 #include "interlacing.h"
  51 #include "postprocessing.h"
  52 #include "display.h"
  53
  54 /*****************************************************************************
  55  * Local prototypes
  56  *****************************************************************************/
  57 static void *Thread(void *);
  58 static void VoutDestructor(vlc_object_t *);
  59
  60 /* Maximum delay between 2 displayed pictures.
  61  * XXX it is needed for now but should be removed in the long term.
  62  */
  63 #define VOUT_REDISPLAY_DELAY (INT64_C(80000))
  64
  65 /**
  66  * Late pictures having a delay higher than this value are thrashed.
  67  */
  68 #define VOUT_DISPLAY_LATE_THRESHOLD (INT64_C(20000))
  69
  70 /* Better be in advance when awakening than late... */
  71 #define VOUT_MWAIT_TOLERANCE (INT64_C(1000))
  72
  73 /* */
  74 static int VoutValidateFormat(video_format_t *dst,
  75                               const video_format_t *src)
  76 {
  77     if (src->i_width <= 0 || src->i_height <= 0)
  78         return VLC_EGENERIC;
  79     if (src->i_sar_num <= 0 || src->i_sar_den <= 0)
  80         return VLC_EGENERIC;
  81
  82     /* */
  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) {
  88         dst->i_sar_num = 1;
  89         dst->i_sar_den = 1;
  90     }
  91     video_format_FixRgb(dst);
  92     return VLC_SUCCESS;
  93 }
  94
  95 static vout_thread_t *VoutCreate(vlc_object_t *object,
  96                                  const vout_configuration_t *cfg)
  97 {
  98     video_format_t original;
  99     if (VoutValidateFormat(&original, cfg->fmt))
 100         return NULL;
 101
 102     /* Allocate descriptor */
 103     vout_thread_t *vout = vlc_custom_create(object,
 104                                             sizeof(*vout) + sizeof(*vout->p),
 105                                             VLC_OBJECT_VOUT, "video output");
 106     if (!vout) {
 107         video_format_Clean(&original);
 108         return NULL;
 109     }
 110
 111     /* */
 112     vout->p = (vout_thread_sys_t*)&vout[1];
 113
 114     vout->p->original = original;
 115     vout->p->dpb_size = cfg->dpb_size;
 116
 117     vout_control_Init(&vout->p->control);
 118     vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_INIT);
 119
 120     vout_statistic_Init(&vout->p->statistic);
 121     vout->p->i_par_num =
 122     vout->p->i_par_den = 1;
 123
 124     vout_snapshot_Init(&vout->p->snapshot);
 125
 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);
 130
 131     /* Attach the new object now so we can use var inheritance below */
 132     vlc_object_attach(vout, object);
 133
 134     /* Initialize subpicture unit */
 135     vout->p->p_spu = spu_Create(vout);
 136
 137     /* Take care of some "interface/control" related initialisations */
 138     vout_IntfInit(vout);
 139
 140     /* Get splitter name if present */
 141     char *splitter_name = var_GetNonEmptyString(vout, "vout-filter");
 142     if (splitter_name) {
 143         if (asprintf(&vout->p->splitter_name, "%s,none", splitter_name) < 0)
 144             vout->p->splitter_name = NULL;
 145         free(splitter_name);
 146     } else {
 147         vout->p->splitter_name = NULL;
 148     }
 149
 150     /* */
 151     vout_InitInterlacingSupport(vout, vout->p->displayed.is_interlaced);
 152
 153     /* */
 154     vlc_object_set_destructor(vout, VoutDestructor);
 155
 156     /* */
 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);
 161         return NULL;
 162     }
 163
 164     vout_control_WaitEmpty(&vout->p->control);
 165
 166     if (vout->p->dead) {
 167         msg_Err(vout, "video output creation failed");
 168         vout_CloseAndRelease(vout);
 169         return NULL;
 170     }
 171
 172     vout->p->input = cfg->input;
 173     if (vout->p->input)
 174         spu_Attach(vout->p->p_spu, vout->p->input, true);
 175
 176     return vout;
 177 }
 178
 179 vout_thread_t *(vout_Request)(vlc_object_t *object,
 180                               const vout_configuration_t *cfg)
 181 {
 182     vout_thread_t *vout = cfg->vout;
 183     if (cfg->change_fmt && !cfg->fmt) {
 184         if (vout)
 185             vout_CloseAndRelease(vout);
 186         return NULL;
 187     }
 188
 189     /* If a vout is provided, try reusing it */
 190     if (vout) {
 191         if (vout->p->input != cfg->input) {
 192             if (vout->p->input)
 193                 spu_Attach(vout->p->p_spu, vout->p->input, false);
 194             vout->p->input = cfg->input;
 195             if (vout->p->input)
 196                 spu_Attach(vout->p->p_spu, vout->p->input, true);
 197         }
 198
 199         if (cfg->change_fmt) {
 200             vout_control_cmd_t cmd;
 201             vout_control_cmd_Init(&cmd, VOUT_CONTROL_REINIT);
 202             cmd.u.cfg = cfg;
 203
 204             vout_control_Push(&vout->p->control, &cmd);
 205             vout_control_WaitEmpty(&vout->p->control);
 206         }
 207
 208         if (!vout->p->dead) {
 209             msg_Dbg(object, "reusing provided vout");
 210             return vout;
 211         }
 212         vout_CloseAndRelease(vout);
 213
 214         msg_Warn(object, "cannot reuse provided vout");
 215     }
 216     return VoutCreate(object, cfg);
 217 }
 218
 219 void vout_Close(vout_thread_t *vout)
 220 {
 221     assert(vout);
 222
 223     if (vout->p->input)
 224         spu_Attach(vout->p->p_spu, vout->p->input, false);
 225
 226     vout_snapshot_End(&vout->p->snapshot);
 227
 228     vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_CLEAN);
 229     vlc_join(vout->p->thread, NULL);
 230
 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);
 235 }
 236
 237 /* */
 238 static void VoutDestructor(vlc_object_t *object)
 239 {
 240     vout_thread_t *vout = (vout_thread_t *)object;
 241
 242     /* Make sure the vout was stopped first */
 243     //assert(!vout->p_module);
 244
 245     free(vout->p->splitter_name);
 246
 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);
 252
 253     /* */
 254     vout_statistic_Clean(&vout->p->statistic);
 255
 256     /* */
 257     vout_snapshot_Clean(&vout->p->snapshot);
 258
 259     video_format_Clean(&vout->p->original);
 260 }
 261
 262 /* */
 263 void vout_ChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
 264 {
 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);
 270
 271     vout_control_WaitEmpty(&vout->p->control);
 272 }
 273
 274 void vout_GetResetStatistic(vout_thread_t *vout, int *displayed, int *lost)
 275 {
 276     vout_statistic_GetReset( &vout->p->statistic, displayed, lost );
 277 }
 278
 279 void vout_Flush(vout_thread_t *vout, mtime_t date)
 280 {
 281     vout_control_PushTime(&vout->p->control, VOUT_CONTROL_FLUSH, date);
 282     vout_control_WaitEmpty(&vout->p->control);
 283 }
 284
 285 void vout_Reset(vout_thread_t *vout)
 286 {
 287     vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_RESET);
 288     vout_control_WaitEmpty(&vout->p->control);
 289 }
 290
 291 bool vout_IsEmpty(vout_thread_t *vout)
 292 {
 293     vlc_mutex_lock(&vout->p->picture_lock);
 294
 295     picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
 296     if (picture)
 297         picture_Release(picture);
 298
 299     vlc_mutex_unlock(&vout->p->picture_lock);
 300
 301     return !picture;
 302 }
 303
 304 void vout_FixLeaks( vout_thread_t *vout )
 305 {
 306     vlc_mutex_lock(&vout->p->picture_lock);
 307
 308     picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
 309     if (!picture) {
 310         picture = picture_pool_Get(vout->p->decoder_pool);
 311     }
 312
 313     if (picture) {
 314         picture_Release(picture);
 315         /* Not all pictures has been displayed yet or some are
 316          * free */
 317         vlc_mutex_unlock(&vout->p->picture_lock);
 318         return;
 319     }
 320
 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");
 324
 325     /* */
 326     picture_pool_NonEmpty(vout->p->decoder_pool, false);
 327
 328     vlc_mutex_unlock(&vout->p->picture_lock);
 329 }
 330 void vout_NextPicture(vout_thread_t *vout, mtime_t *duration)
 331 {
 332     vout_control_cmd_t cmd;
 333     vout_control_cmd_Init(&cmd, VOUT_CONTROL_STEP);
 334     cmd.u.time_ptr = duration;
 335
 336     vout_control_Push(&vout->p->control, &cmd);
 337     vout_control_WaitEmpty(&vout->p->control);
 338 }
 339
 340 void vout_DisplayTitle(vout_thread_t *vout, const char *title)
 341 {
 342     assert(title);
 343     vout_control_PushString(&vout->p->control, VOUT_CONTROL_OSD_TITLE, title);
 344 }
 345
 346 void vout_PutSubpicture( vout_thread_t *vout, subpicture_t *subpic )
 347 {
 348     vout_control_cmd_t cmd;
 349     vout_control_cmd_Init(&cmd, VOUT_CONTROL_SUBPICTURE);
 350     cmd.u.subpicture = subpic;
 351
 352     vout_control_Push(&vout->p->control, &cmd);
 353 }
 354 int vout_RegisterSubpictureChannel( vout_thread_t *vout )
 355 {
 356     int channel = SPU_DEFAULT_CHANNEL;
 357
 358     vlc_mutex_lock(&vout->p->spu_lock);
 359     if (vout->p->p_spu)
 360         channel = spu_RegisterChannel(vout->p->p_spu);
 361     vlc_mutex_unlock(&vout->p->spu_lock);
 362
 363     return channel;
 364 }
 365 void vout_FlushSubpictureChannel( vout_thread_t *vout, int channel )
 366 {
 367     vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_FLUSH_SUBPICTURE,
 368                              channel);
 369 }
 370
 371 /* vout_Control* are usable by anyone at anytime */
 372 void vout_ControlChangeFullscreen(vout_thread_t *vout, bool fullscreen)
 373 {
 374     vout_control_PushBool(&vout->p->control, VOUT_CONTROL_FULLSCREEN,
 375                           fullscreen);
 376 }
 377 void vout_ControlChangeOnTop(vout_thread_t *vout, bool is_on_top)
 378 {
 379     vout_control_PushBool(&vout->p->control, VOUT_CONTROL_ON_TOP,
 380                           is_on_top);
 381 }
 382 void vout_ControlChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
 383 {
 384     vout_control_PushBool(&vout->p->control, VOUT_CONTROL_DISPLAY_FILLED,
 385                           is_filled);
 386 }
 387 void vout_ControlChangeZoom(vout_thread_t *vout, int num, int den)
 388 {
 389     vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ZOOM,
 390                           num, den);
 391 }
 392 void vout_ControlChangeSampleAspectRatio(vout_thread_t *vout,
 393                                          unsigned num, unsigned den)
 394 {
 395     vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ASPECT_RATIO,
 396                           num, den);
 397 }
 398 void vout_ControlChangeCropRatio(vout_thread_t *vout,
 399                                  unsigned num, unsigned den)
 400 {
 401     vout_control_PushPair(&vout->p->control, VOUT_CONTROL_CROP_RATIO,
 402                           num, den);
 403 }
 404 void vout_ControlChangeCropWindow(vout_thread_t *vout,
 405                                   int x, int y, int width, int height)
 406 {
 407     vout_control_cmd_t cmd;
 408     vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_WINDOW);
 409     cmd.u.window.x      = x;
 410     cmd.u.window.y      = y;
 411     cmd.u.window.width  = width;
 412     cmd.u.window.height = height;
 413
 414     vout_control_Push(&vout->p->control, &cmd);
 415 }
 416 void vout_ControlChangeCropBorder(vout_thread_t *vout,
 417                                   int left, int top, int right, int bottom)
 418 {
 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;
 425
 426     vout_control_Push(&vout->p->control, &cmd);
 427 }
 428 void vout_ControlChangeFilters(vout_thread_t *vout, const char *filters)
 429 {
 430     vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_FILTERS,
 431                             filters);
 432 }
 433 void vout_ControlChangeSubFilters(vout_thread_t *vout, const char *filters)
 434 {
 435     vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_FILTERS,
 436                             filters);
 437 }
 438 void vout_ControlChangeSubMargin(vout_thread_t *vout, int margin)
 439 {
 440     vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_MARGIN,
 441                              margin);
 442 }
 443
 444 /* */
 445 static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
 446 {
 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.vertical = VOUT_DISPLAY_ALIGN_TOP;
 471     else if (align_mask & 0x8)
 472         cfg->align.vertical = VOUT_DISPLAY_ALIGN_BOTTOM;
 473 }
 474
 475 vout_window_t * vout_NewDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
 476                                       const vout_window_cfg_t *cfg)
 477 {
 478     VLC_UNUSED(vd);
 479     vout_window_cfg_t cfg_override = *cfg;
 480
 481     if (!var_InheritBool( vout, "embedded-video"))
 482         cfg_override.is_standalone = true;
 483
 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;
 497             return window;
 498         }
 499
 500         vout_window_Delete(vout->p->window.object);
 501         vout->p->window.is_unused = true;
 502         vout->p->window.object    = NULL;
 503     }
 504
 505     vout_window_t *window = vout_window_New(VLC_OBJECT(vout), "$window",
 506                                             &cfg_override);
 507     if (!window)
 508         return 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;
 513     }
 514     return window;
 515 }
 516
 517 void vout_DeleteDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
 518                               vout_window_t *window)
 519 {
 520     VLC_UNUSED(vd);
 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;
 527     } else if (window) {
 528         vout_window_Delete(window);
 529     }
 530 }
 531
 532 /* */
 533 static picture_t *VoutVideoFilterNewPicture(filter_t *filter)
 534 {
 535     vout_thread_t *vout = (vout_thread_t*)filter->p_owner;
 536     return picture_pool_Get(vout->p->private_pool);
 537 }
 538 static void VoutVideoFilterDelPicture(filter_t *filter, picture_t *picture)
 539 {
 540     VLC_UNUSED(filter);
 541     picture_Release(picture);
 542 }
 543 static int VoutVideoFilterAllocationSetup(filter_t *filter, void *data)
 544 {
 545     filter->pf_video_buffer_new = VoutVideoFilterNewPicture;
 546     filter->pf_video_buffer_del = VoutVideoFilterDelPicture;
 547     filter->p_owner             = data; /* vout */
 548     return VLC_SUCCESS;
 549 }
 550
 551 /* */
 552 static picture_t *ThreadDisplayGetDecodedPicture(vout_thread_t *vout,
 553                                                  int *lost_count, bool *is_forced,
 554                                                  bool now, mtime_t *deadline)
 555 {
 556     vout_display_t *vd = vout->p->display.vd;
 557
 558     const mtime_t date = mdate();
 559     const bool is_paused = vout->p->pause.is_on;
 560     bool redisplay = is_paused && !now && vout->p->displayed.decoded;
 561
 562     mtime_t vfilter_delay = 0;
 563     for (int i = 0; i < VOUT_FILTER_DELAYS; i++)
 564         vfilter_delay = __MAX(vfilter_delay, vout->p->vfilter_delay[i]);
 565
 566     /* FIXME/XXX we must redisplay the last decoded picture (because
 567      * of potential vout updated, or filters update or SPU update)
 568      * For now a high update period is needed but it coulmd be removed
 569      * if and only if:
 570      * - vout module emits events from theselves.
 571      * - *and* SPU is modified to emit an event or a deadline when needed.
 572      *
 573      * So it will be done latter.
 574      */
 575     if (!redisplay) {
 576         picture_t *peek = picture_fifo_Peek(vout->p->decoder_fifo);
 577         if (peek) {
 578             *is_forced = peek->b_force || is_paused || now;
 579             *deadline = (*is_forced ? date : peek->date) -
 580                         vout_chrono_GetHigh(&vout->p->render) -
 581                         vfilter_delay;
 582             picture_Release(peek);
 583         } else {
 584             redisplay = true;
 585         }
 586     }
 587     if (redisplay) {
 588          /* FIXME a better way for this delay is needed */
 589         const mtime_t date_update = vout->p->displayed.date + VOUT_REDISPLAY_DELAY;
 590         if (date_update > date || !vout->p->displayed.decoded) {
 591             *deadline = vout->p->displayed.decoded ? date_update : VLC_TS_INVALID;
 592             return NULL;
 593         }
 594         /* */
 595         *is_forced = true;
 596         *deadline = date - vout_chrono_GetHigh(&vout->p->render) - vfilter_delay;
 597     }
 598     if (*deadline > VOUT_MWAIT_TOLERANCE)
 599         *deadline -= VOUT_MWAIT_TOLERANCE;
 600
 601     /* If we are too early and can wait, do it */
 602     if (date < *deadline && !now)
 603         return NULL;
 604
 605     picture_t *decoded;
 606     if (redisplay) {
 607         decoded = vout->p->displayed.decoded;
 608         vout->p->displayed.decoded = NULL;
 609     } else {
 610         decoded = picture_fifo_Pop(vout->p->decoder_fifo);
 611         assert(decoded);
 612         if (!*is_forced && !vout->p->is_late_dropped) {
 613             const mtime_t predicted = date + vout_chrono_GetLow(&vout->p->render);
 614             const mtime_t late = predicted - decoded->date;
 615             if (late > 0) {
 616                 msg_Dbg(vout, "picture might be displayed late (missing %d ms)", (int)(late/1000));
 617                 if (late > VOUT_DISPLAY_LATE_THRESHOLD) {
 618                     msg_Warn(vout, "rejected picture because of render time");
 619                     /* TODO */
 620                     picture_Release(decoded);
 621                     (*lost_count)++;
 622                     return NULL;
 623                 }
 624             }
 625         }
 626
 627         vout->p->displayed.is_interlaced = !decoded->b_progressive;
 628         vout->p->displayed.qtype         = decoded->i_qtype;
 629     }
 630     vout->p->displayed.timestamp = decoded->date;
 631
 632     /* */
 633     if (vout->p->displayed.decoded)
 634         picture_Release(vout->p->displayed.decoded);
 635     picture_Hold(decoded);
 636     vout->p->displayed.decoded = decoded;
 637
 638     return decoded;
 639 }
 640
 641 static int ThreadDisplayPicture(vout_thread_t *vout,
 642                                 bool now, mtime_t *deadline)
 643 {
 644     vout_display_t *vd = vout->p->display.vd;
 645     int displayed_count = 0;
 646     int lost_count = 0;
 647
 648     for (;;) {
 649         bool is_forced;
 650         picture_t *decoded = ThreadDisplayGetDecodedPicture(vout,
 651                                                             &lost_count, &is_forced,
 652                                                             now, deadline);
 653         if (!decoded)
 654             break;
 655
 656         /* */
 657         vout_chrono_Start(&vout->p->render);
 658
 659         picture_t *filtered = NULL;
 660         if (decoded) {
 661             vlc_mutex_lock(&vout->p->vfilter_lock);
 662             filtered = filter_chain_VideoFilter(vout->p->vfilter_chain, decoded);
 663             //assert(filtered == decoded); // TODO implement
 664             vlc_mutex_unlock(&vout->p->vfilter_lock);
 665             if (!filtered)
 666                 continue;
 667             vout->p->vfilter_delay[vout->p->vfilter_delay_index] = decoded->date - filtered->date;
 668             vout->p->vfilter_delay_index = (vout->p->vfilter_delay_index + 1) % VOUT_FILTER_DELAYS;
 669         }
 670
 671         /*
 672          * Check for subpictures to display
 673          */
 674         const bool do_snapshot = vout_snapshot_IsRequested(&vout->p->snapshot);
 675         mtime_t spu_render_time = is_forced ? mdate() : filtered->date;
 676         if (vout->p->pause.is_on)
 677             spu_render_time = vout->p->pause.date;
 678         else
 679             spu_render_time = filtered->date > 1 ? filtered->date : mdate();
 680
 681         subpicture_t *subpic = spu_SortSubpictures(vout->p->p_spu,
 682                                                    spu_render_time,
 683                                                    do_snapshot);
 684         /*
 685          * Perform rendering
 686          *
 687          * We have to:
 688          * - be sure to end up with a direct buffer.
 689          * - blend subtitles, and in a fast access buffer
 690          */
 691         picture_t *direct = NULL;
 692         if (filtered &&
 693             (vout->p->decoder_pool != vout->p->display_pool || subpic)) {
 694             picture_t *render;
 695             if (vout->p->is_decoder_pool_slow)
 696                 render = picture_NewFromFormat(&vd->source);
 697             else if (vout->p->decoder_pool != vout->p->display_pool)
 698                 render = picture_pool_Get(vout->p->display_pool);
 699             else
 700                 render = picture_pool_Get(vout->p->private_pool);
 701
 702             if (render) {
 703                 picture_Copy(render, filtered);
 704
 705                 spu_RenderSubpictures(vout->p->p_spu,
 706                                       render, &vd->source,
 707                                       subpic, &vd->source, spu_render_time);
 708             }
 709             if (vout->p->is_decoder_pool_slow) {
 710                 direct = picture_pool_Get(vout->p->display_pool);
 711                 if (direct)
 712                     picture_Copy(direct, render);
 713                 picture_Release(render);
 714
 715             } else {
 716                 direct = render;
 717             }
 718             picture_Release(filtered);
 719             filtered = NULL;
 720         } else {
 721             direct = filtered;
 722         }
 723
 724         /*
 725          * Take a snapshot if requested
 726          */
 727         if (direct && do_snapshot)
 728             vout_snapshot_Set(&vout->p->snapshot, &vd->source, direct);
 729
 730         /* Render the direct buffer returned by vout_RenderPicture */
 731         if (direct) {
 732             vout_RenderWrapper(vout, direct);
 733
 734             vout_chrono_Stop(&vout->p->render);
 735 #if 0
 736             {
 737             static int i = 0;
 738             if (((i++)%10) == 0)
 739                 msg_Info(vout, "render: avg %d ms var %d ms",
 740                          (int)(vout->p->render.avg/1000), (int)(vout->p->render.var/1000));
 741             }
 742 #endif
 743         }
 744
 745         /* Wait the real date (for rendering jitter) */
 746         if (!is_forced)
 747             mwait(direct->date);
 748
 749         /* Display the direct buffer returned by vout_RenderPicture */
 750         vout->p->displayed.date = mdate();
 751         if (direct)
 752             vout_DisplayWrapper(vout, direct);
 753
 754         displayed_count++;
 755         break;
 756     }
 757
 758     vout_statistic_Update(&vout->p->statistic, displayed_count, lost_count);
 759     if (displayed_count <= 0)
 760         return VLC_EGENERIC;
 761     return VLC_SUCCESS;
 762 }
 763
 764 static void ThreadManage(vout_thread_t *vout,
 765                          mtime_t *deadline,
 766                          vout_interlacing_support_t *interlacing,
 767                          vout_postprocessing_support_t *postprocessing)
 768 {
 769     vlc_mutex_lock(&vout->p->picture_lock);
 770
 771     *deadline = VLC_TS_INVALID;
 772     ThreadDisplayPicture(vout, false, deadline);
 773
 774     const int  picture_qtype      = vout->p->displayed.qtype;
 775     const bool picture_interlaced = vout->p->displayed.is_interlaced;
 776
 777     vlc_mutex_unlock(&vout->p->picture_lock);
 778
 779     /* Post processing */
 780     vout_SetPostProcessingState(vout, postprocessing, picture_qtype);
 781
 782     /* Deinterlacing */
 783     vout_SetInterlacingState(vout, interlacing, picture_interlaced);
 784
 785     vout_ManageWrapper(vout);
 786 }
 787
 788 static void ThreadDisplaySubpicture(vout_thread_t *vout,
 789                                     subpicture_t *subpicture)
 790 {
 791     spu_DisplaySubpicture(vout->p->p_spu, subpicture);
 792 }
 793
 794 static void ThreadFlushSubpicture(vout_thread_t *vout, int channel)
 795 {
 796     spu_ClearChannel(vout->p->p_spu, channel);
 797 }
 798
 799 static void ThreadDisplayOsdTitle(vout_thread_t *vout, const char *string)
 800 {
 801     if (!vout->p->title.show)
 802         return;
 803
 804     vout_OSDText(vout, SPU_DEFAULT_CHANNEL,
 805                  vout->p->title.position, INT64_C(1000) * vout->p->title.timeout,
 806                  string);
 807 }
 808
 809 static void ThreadChangeFilters(vout_thread_t *vout, const char *filters)
 810 {
 811     es_format_t fmt;
 812     es_format_Init(&fmt, VIDEO_ES, vout->p->original.i_chroma);
 813     fmt.video = vout->p->original;
 814
 815     vlc_mutex_lock(&vout->p->vfilter_lock);
 816
 817     filter_chain_Reset(vout->p->vfilter_chain, &fmt, &fmt);
 818     if (filter_chain_AppendFromString(vout->p->vfilter_chain,
 819                                       filters) < 0)
 820         msg_Err(vout, "Video filter chain creation failed");
 821
 822     vlc_mutex_unlock(&vout->p->vfilter_lock);
 823
 824     vout->p->vfilter_delay_index = 0;
 825     for (int i = 0; i < VOUT_FILTER_DELAYS; i++)
 826         vout->p->vfilter_delay[i] = 0;
 827 }
 828
 829 static void ThreadChangeSubFilters(vout_thread_t *vout, const char *filters)
 830 {
 831     spu_ChangeFilters(vout->p->p_spu, filters);
 832 }
 833 static void ThreadChangeSubMargin(vout_thread_t *vout, int margin)
 834 {
 835     spu_ChangeMargin(vout->p->p_spu, margin);
 836 }
 837
 838 static void ThreadFilterFlush(vout_thread_t *vout)
 839 {
 840     vlc_mutex_lock(&vout->p->vfilter_lock);
 841     filter_chain_VideoFlush(vout->p->vfilter_chain);
 842     vlc_mutex_unlock(&vout->p->vfilter_lock);
 843 }
 844
 845 static void ThreadChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
 846 {
 847     assert(!vout->p->pause.is_on || !is_paused);
 848
 849     if (vout->p->pause.is_on) {
 850         const mtime_t duration = date - vout->p->pause.date;
 851
 852         if (vout->p->step.timestamp > VLC_TS_INVALID)
 853             vout->p->step.timestamp += duration;
 854         if (vout->p->step.last > VLC_TS_INVALID)
 855             vout->p->step.last += duration;
 856         picture_fifo_OffsetDate(vout->p->decoder_fifo, duration);
 857         if (vout->p->displayed.decoded)
 858             vout->p->displayed.decoded->date += duration;
 859
 860         spu_OffsetSubtitleDate(vout->p->p_spu, duration);
 861
 862         ThreadFilterFlush(vout);
 863     } else {
 864         vout->p->step.timestamp = VLC_TS_INVALID;
 865         vout->p->step.last      = VLC_TS_INVALID;
 866     }
 867     vout->p->pause.is_on = is_paused;
 868     vout->p->pause.date  = date;
 869 }
 870
 871 static void ThreadFlush(vout_thread_t *vout, bool below, mtime_t date)
 872 {
 873     vout->p->step.timestamp = VLC_TS_INVALID;
 874     vout->p->step.last      = VLC_TS_INVALID;
 875
 876     picture_t *last = vout->p->displayed.decoded;
 877     if (last) {
 878         if (( below && last->date <= date) ||
 879             (!below && last->date >= date)) {
 880             picture_Release(last);
 881
 882             vout->p->displayed.decoded   = NULL;
 883             vout->p->displayed.date      = VLC_TS_INVALID;
 884             vout->p->displayed.timestamp = VLC_TS_INVALID;
 885         }
 886     }
 887     ThreadFilterFlush(vout);
 888
 889     picture_fifo_Flush(vout->p->decoder_fifo, date, below);
 890 }
 891
 892 static void ThreadReset(vout_thread_t *vout)
 893 {
 894     ThreadFlush(vout, true, INT64_MAX);
 895     if (vout->p->decoder_pool)
 896         picture_pool_NonEmpty(vout->p->decoder_pool, true);
 897     vout->p->pause.is_on = false;
 898     vout->p->pause.date  = mdate();
 899 }
 900
 901 static void ThreadStep(vout_thread_t *vout, mtime_t *duration)
 902 {
 903     *duration = 0;
 904
 905     if (vout->p->step.last <= VLC_TS_INVALID)
 906         vout->p->step.last = vout->p->displayed.timestamp;
 907
 908     mtime_t dummy;
 909     if (ThreadDisplayPicture(vout, true, &dummy))
 910         return;
 911
 912     vout->p->step.timestamp = vout->p->displayed.timestamp;
 913
 914     if (vout->p->step.last > VLC_TS_INVALID &&
 915         vout->p->step.timestamp > vout->p->step.last) {
 916         *duration = vout->p->step.timestamp - vout->p->step.last;
 917         vout->p->step.last = vout->p->step.timestamp;
 918         /* TODO advance subpicture by the duration ... */
 919     }
 920 }
 921
 922 static void ThreadChangeFullscreen(vout_thread_t *vout, bool fullscreen)
 923 {
 924     /* FIXME not sure setting "fullscreen" is good ... */
 925     var_SetBool(vout, "fullscreen", fullscreen);
 926     vout_SetDisplayFullscreen(vout->p->display.vd, fullscreen);
 927 }
 928
 929 static void ThreadChangeOnTop(vout_thread_t *vout, bool is_on_top)
 930 {
 931     vout_SetWindowState(vout->p->display.vd,
 932                         is_on_top ? VOUT_WINDOW_STATE_ABOVE :
 933                                     VOUT_WINDOW_STATE_NORMAL);
 934 }
 935
 936 static void ThreadChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
 937 {
 938     vout_SetDisplayFilled(vout->p->display.vd, is_filled);
 939 }
 940
 941 static void ThreadChangeZoom(vout_thread_t *vout, int num, int den)
 942 {
 943     if (num * 10 < den) {
 944         num = den;
 945         den *= 10;
 946     } else if (num > den * 10) {
 947         num = den * 10;
 948     }
 949
 950     vout_SetDisplayZoom(vout->p->display.vd, num, den);
 951 }
 952
 953 static void ThreadChangeAspectRatio(vout_thread_t *vout,
 954                                     unsigned num, unsigned den)
 955 {
 956     const video_format_t *source = &vout->p->original;
 957
 958     if (num > 0 && den > 0) {
 959         num *= source->i_visible_height;
 960         den *= source->i_visible_width;
 961         vlc_ureduce(&num, &den, num, den, 0);
 962     }
 963     vout_SetDisplayAspect(vout->p->display.vd, num, den);
 964 }
 965
 966
 967 static void ThreadExecuteCropWindow(vout_thread_t *vout,
 968                                     unsigned crop_num, unsigned crop_den,
 969                                     unsigned x, unsigned y,
 970                                     unsigned width, unsigned height)
 971 {
 972     const video_format_t *source = &vout->p->original;
 973
 974     vout_SetDisplayCrop(vout->p->display.vd,
 975                         crop_num, crop_den,
 976                         source->i_x_offset + x,
 977                         source->i_y_offset + y,
 978                         width, height);
 979 }
 980 static void ThreadExecuteCropBorder(vout_thread_t *vout,
 981                                     unsigned left, unsigned top,
 982                                     unsigned right, unsigned bottom)
 983 {
 984     const video_format_t *source = &vout->p->original;
 985     ThreadExecuteCropWindow(vout, 0, 0,
 986                             left,
 987                             top,
 988                             /* At worst, it becomes < 0 (but unsigned) and will be rejected */
 989                             source->i_visible_width  - (left + right),
 990                             source->i_visible_height - (top  + bottom));
 991 }
 992
 993 static void ThreadExecuteCropRatio(vout_thread_t *vout,
 994                                    unsigned num, unsigned den)
 995 {
 996     const video_format_t *source = &vout->p->original;
 997     ThreadExecuteCropWindow(vout, num, den,
 998                             0, 0,
 999                             source->i_visible_width,
1000                             source->i_visible_height);
1001 }
1002
1003 static int ThreadStart(vout_thread_t *vout, const vout_display_state_t *state)
1004 {
1005     vlc_mouse_Init(&vout->p->mouse);
1006     vout->p->decoder_fifo = picture_fifo_New();
1007     vout->p->decoder_pool = NULL;
1008     vout->p->display_pool = NULL;
1009     vout->p->private_pool = NULL;
1010
1011     vout->p->vfilter_chain =
1012         filter_chain_New( vout, "video filter2", false,
1013                           VoutVideoFilterAllocationSetup, NULL, vout);
1014     vout->p->vfilter_delay_index = 0;
1015     for (int i = 0; i < VOUT_FILTER_DELAYS; i++)
1016         vout->p->vfilter_delay[i] = 0;
1017
1018     vout_display_state_t state_default;
1019     if (!state) {
1020         VoutGetDisplayCfg(vout, &state_default.cfg, vout->p->display.title);
1021         state_default.wm_state = var_CreateGetBool(vout, "video-on-top") ? VOUT_WINDOW_STATE_ABOVE :
1022                                                                            VOUT_WINDOW_STATE_NORMAL;
1023         state_default.sar.num = 0;
1024         state_default.sar.den = 0;
1025
1026         state = &state_default;
1027     }
1028
1029     if (vout_OpenWrapper(vout, vout->p->splitter_name, state))
1030         return VLC_EGENERIC;
1031     if (vout_InitWrapper(vout))
1032         return VLC_EGENERIC;
1033     assert(vout->p->decoder_pool);
1034
1035     vout->p->displayed.decoded       = NULL;
1036     vout->p->displayed.date          = VLC_TS_INVALID;
1037     vout->p->displayed.decoded       = NULL;
1038     vout->p->displayed.timestamp     = VLC_TS_INVALID;
1039     vout->p->displayed.qtype         = QTYPE_NONE;
1040     vout->p->displayed.is_interlaced = false;
1041
1042     vout->p->step.last               = VLC_TS_INVALID;
1043     vout->p->step.timestamp          = VLC_TS_INVALID;
1044
1045     video_format_Print(VLC_OBJECT(vout), "original format", &vout->p->original);
1046     return VLC_SUCCESS;
1047 }
1048
1049 static void ThreadStop(vout_thread_t *vout, vout_display_state_t *state)
1050 {
1051     /* Destroy the video filters2 */
1052     filter_chain_Delete(vout->p->vfilter_chain);
1053
1054     /* Destroy translation tables */
1055     if (vout->p->display.vd) {
1056         if (vout->p->decoder_pool) {
1057             ThreadFlush(vout, true, INT64_MAX);
1058             vout_EndWrapper(vout);
1059         }
1060         vout_CloseWrapper(vout, state);
1061     }
1062
1063     if (vout->p->decoder_fifo)
1064         picture_fifo_Delete(vout->p->decoder_fifo);
1065     assert(!vout->p->decoder_pool);
1066 }
1067
1068 static void ThreadInit(vout_thread_t *vout)
1069 {
1070     vout->p->window.is_unused = true;
1071     vout->p->window.object    = NULL;
1072     vout->p->dead             = false;
1073     vout->p->is_late_dropped  = var_InheritBool(vout, "drop-late-frames");
1074     vout->p->pause.is_on      = false;
1075     vout->p->pause.date       = VLC_TS_INVALID;
1076
1077     vout_chrono_Init(&vout->p->render, 5, 10000); /* Arbitrary initial time */
1078 }
1079
1080 static void ThreadClean(vout_thread_t *vout)
1081 {
1082     if (vout->p->window.object) {
1083         assert(vout->p->window.is_unused);
1084         vout_window_Delete(vout->p->window.object);
1085     }
1086     vout_chrono_Clean(&vout->p->render);
1087     vout->p->dead = true;
1088     vout_control_Dead(&vout->p->control);
1089 }
1090
1091 static int ThreadReinit(vout_thread_t *vout,
1092                         const vout_configuration_t *cfg)
1093 {
1094     video_format_t original;
1095     if (VoutValidateFormat(&original, cfg->fmt)) {
1096         ThreadStop(vout, NULL);
1097         ThreadClean(vout);
1098         return VLC_EGENERIC;
1099     }
1100     if (video_format_IsSimilar(&original, &vout->p->original)) {
1101         if (cfg->dpb_size <= vout->p->dpb_size)
1102             return VLC_SUCCESS;
1103         msg_Warn(vout, "DPB need to be increased");
1104     }
1105
1106     vout_display_state_t state;
1107     memset(&state, 0, sizeof(state));
1108
1109     ThreadStop(vout, &state);
1110
1111     if (!state.cfg.is_fullscreen) {
1112         state.cfg.display.width  = 0;
1113         state.cfg.display.height = 0;
1114     }
1115     state.sar.num = 0;
1116     state.sar.den = 0;
1117     /* FIXME current vout "variables" are not in sync here anymore
1118      * and I am not sure what to do */
1119
1120     vout->p->original = original;
1121     vout->p->dpb_size = cfg->dpb_size;
1122     if (ThreadStart(vout, &state)) {
1123         ThreadClean(vout);
1124         return VLC_EGENERIC;
1125     }
1126     return VLC_SUCCESS;
1127 }
1128
1129 /*****************************************************************************
1130  * Thread: video output thread
1131  *****************************************************************************
1132  * Video output thread. This function does only returns when the thread is
1133  * terminated. It handles the pictures arriving in the video heap and the
1134  * display device events.
1135  *****************************************************************************/
1136 static void *Thread(void *object)
1137 {
1138     vout_thread_t *vout = object;
1139
1140     vout_interlacing_support_t interlacing = {
1141         .is_interlaced = false,
1142         .date = mdate(),
1143     };
1144     vout_postprocessing_support_t postprocessing = {
1145         .qtype = QTYPE_NONE,
1146     };
1147
1148     mtime_t deadline = VLC_TS_INVALID;
1149     for (;;) {
1150         vout_control_cmd_t cmd;
1151
1152         /* FIXME remove thoses ugly timeouts
1153          */
1154         while (!vout_control_Pop(&vout->p->control, &cmd, deadline, 100000)) {
1155             switch(cmd.type) {
1156             case VOUT_CONTROL_INIT:
1157                 ThreadInit(vout);
1158                 if (ThreadStart(vout, NULL)) {
1159                     ThreadStop(vout, NULL);
1160                     ThreadClean(vout);
1161                     return NULL;
1162                 }
1163                 break;
1164             case VOUT_CONTROL_CLEAN:
1165                 ThreadStop(vout, NULL);
1166                 ThreadClean(vout);
1167                 return NULL;
1168             case VOUT_CONTROL_REINIT:
1169                 if (ThreadReinit(vout, cmd.u.cfg))
1170                     return NULL;
1171                 break;
1172             case VOUT_CONTROL_SUBPICTURE:
1173                 ThreadDisplaySubpicture(vout, cmd.u.subpicture);
1174                 cmd.u.subpicture = NULL;
1175                 break;
1176             case VOUT_CONTROL_FLUSH_SUBPICTURE:
1177                 ThreadFlushSubpicture(vout, cmd.u.integer);
1178                 break;
1179             case VOUT_CONTROL_OSD_TITLE:
1180                 ThreadDisplayOsdTitle(vout, cmd.u.string);
1181                 break;
1182             case VOUT_CONTROL_CHANGE_FILTERS:
1183                 ThreadChangeFilters(vout, cmd.u.string);
1184                 break;
1185             case VOUT_CONTROL_CHANGE_SUB_FILTERS:
1186                 ThreadChangeSubFilters(vout, cmd.u.string);
1187                 break;
1188             case VOUT_CONTROL_CHANGE_SUB_MARGIN:
1189                 ThreadChangeSubMargin(vout, cmd.u.integer);
1190                 break;
1191             case VOUT_CONTROL_PAUSE:
1192                 ThreadChangePause(vout, cmd.u.pause.is_on, cmd.u.pause.date);
1193                 break;
1194             case VOUT_CONTROL_FLUSH:
1195                 ThreadFlush(vout, false, cmd.u.time);
1196                 break;
1197             case VOUT_CONTROL_RESET:
1198                 ThreadReset(vout);
1199                 break;
1200             case VOUT_CONTROL_STEP:
1201                 ThreadStep(vout, cmd.u.time_ptr);
1202                 break;
1203             case VOUT_CONTROL_FULLSCREEN:
1204                 ThreadChangeFullscreen(vout, cmd.u.boolean);
1205                 break;
1206             case VOUT_CONTROL_ON_TOP:
1207                 ThreadChangeOnTop(vout, cmd.u.boolean);
1208                 break;
1209             case VOUT_CONTROL_DISPLAY_FILLED:
1210                 ThreadChangeDisplayFilled(vout, cmd.u.boolean);
1211                 break;
1212             case VOUT_CONTROL_ZOOM:
1213                 ThreadChangeZoom(vout, cmd.u.pair.a, cmd.u.pair.b);
1214                 break;
1215             case VOUT_CONTROL_ASPECT_RATIO:
1216                 ThreadChangeAspectRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1217                 break;
1218            case VOUT_CONTROL_CROP_RATIO:
1219                 ThreadExecuteCropRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1220                 break;
1221             case VOUT_CONTROL_CROP_WINDOW:
1222                 ThreadExecuteCropWindow(vout, 0, 0,
1223                                         cmd.u.window.x, cmd.u.window.y,
1224                                         cmd.u.window.width, cmd.u.window.height);
1225                 break;
1226             case VOUT_CONTROL_CROP_BORDER:
1227                 ThreadExecuteCropBorder(vout,
1228                                         cmd.u.border.left,  cmd.u.border.top,
1229                                         cmd.u.border.right, cmd.u.border.bottom);
1230                 break;
1231             default:
1232                 break;
1233             }
1234             vout_control_cmd_Clean(&cmd);
1235         }
1236
1237         ThreadManage(vout, &deadline, &interlacing, &postprocessing);
1238     }
1239 }
1240