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 #include <vlc_image.h>
  48
  49 #include <libvlc.h>
  50 #include "vout_internal.h"
  51 #include "interlacing.h"
  52 #include "postprocessing.h"
  53 #include "display.h"
  54
  55 /*****************************************************************************
  56  * Local prototypes
  57  *****************************************************************************/
  58 static void *Thread(void *);
  59 static void VoutDestructor(vlc_object_t *);
  60
  61 /* Maximum delay between 2 displayed pictures.
  62  * XXX it is needed for now but should be removed in the long term.
  63  */
  64 #define VOUT_REDISPLAY_DELAY (INT64_C(80000))
  65
  66 /**
  67  * Late pictures having a delay higher than this value are thrashed.
  68  */
  69 #define VOUT_DISPLAY_LATE_THRESHOLD (INT64_C(20000))
  70
  71 /* Better be in advance when awakening than late... */
  72 #define VOUT_MWAIT_TOLERANCE (INT64_C(4000))
  73
  74 /* */
  75 static int VoutValidateFormat(video_format_t *dst,
  76                               const video_format_t *src)
  77 {
  78     if (src->i_width <= 0  || src->i_width  > 8192 ||
  79         src->i_height <= 0 || src->i_height > 8192)
  80         return VLC_EGENERIC;
  81     if (src->i_sar_num <= 0 || src->i_sar_den <= 0)
  82         return VLC_EGENERIC;
  83
  84     /* */
  85     video_format_Copy(dst, src);
  86     dst->i_chroma = vlc_fourcc_GetCodec(VIDEO_ES, src->i_chroma);
  87     vlc_ureduce( &dst->i_sar_num, &dst->i_sar_den,
  88                  src->i_sar_num,  src->i_sar_den, 50000 );
  89     if (dst->i_sar_num <= 0 || dst->i_sar_den <= 0) {
  90         dst->i_sar_num = 1;
  91         dst->i_sar_den = 1;
  92     }
  93     video_format_FixRgb(dst);
  94     return VLC_SUCCESS;
  95 }
  96 static void VideoFormatCopyCropAr(video_format_t *dst,
  97                                   const video_format_t *src)
  98 {
  99     video_format_CopyCrop(dst, src);
 100     dst->i_sar_num = src->i_sar_num;
 101     dst->i_sar_den = src->i_sar_den;
 102 }
 103 static bool VideoFormatIsCropArEqual(video_format_t *dst,
 104                                      const video_format_t *src)
 105 {
 106     return dst->i_sar_num * src->i_sar_den == dst->i_sar_den * src->i_sar_num &&
 107            dst->i_x_offset       == src->i_x_offset &&
 108            dst->i_y_offset       == src->i_y_offset &&
 109            dst->i_visible_width  == src->i_visible_width &&
 110            dst->i_visible_height == src->i_visible_height;
 111 }
 112
 113 static vout_thread_t *VoutCreate(vlc_object_t *object,
 114                                  const vout_configuration_t *cfg)
 115 {
 116     video_format_t original;
 117     if (VoutValidateFormat(&original, cfg->fmt))
 118         return NULL;
 119
 120     /* Allocate descriptor */
 121     vout_thread_t *vout = vlc_custom_create(object,
 122                                             sizeof(*vout) + sizeof(*vout->p),
 123                                             VLC_OBJECT_VOUT, "video output");
 124     if (!vout) {
 125         video_format_Clean(&original);
 126         return NULL;
 127     }
 128
 129     /* */
 130     vout->p = (vout_thread_sys_t*)&vout[1];
 131
 132     vout->p->original = original;
 133     vout->p->dpb_size = cfg->dpb_size;
 134
 135     vout_control_Init(&vout->p->control);
 136     vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_INIT);
 137
 138     vout_statistic_Init(&vout->p->statistic);
 139
 140     vout_snapshot_Init(&vout->p->snapshot);
 141
 142     /* Initialize locks */
 143     vlc_mutex_init(&vout->p->picture_lock);
 144     vlc_mutex_init(&vout->p->filter.lock);
 145     vlc_mutex_init(&vout->p->spu_lock);
 146
 147     /* Attach the new object now so we can use var inheritance below */
 148     vlc_object_attach(vout, object);
 149
 150     /* Initialize subpicture unit */
 151     vout->p->spu = spu_Create(vout);
 152
 153     /* Take care of some "interface/control" related initialisations */
 154     vout_IntfInit(vout);
 155
 156     vout->p->title.show     = var_GetBool(vout, "video-title-show");
 157     vout->p->title.timeout  = var_GetInteger(vout, "video-title-timeout");
 158     vout->p->title.position = var_GetInteger(vout, "video-title-position");
 159
 160     /* Get splitter name if present */
 161     char *splitter_name = var_InheritString(vout, "video-splitter");
 162     if (splitter_name && *splitter_name) {
 163         vout->p->splitter_name = splitter_name;
 164     } else {
 165         free(splitter_name);
 166     }
 167
 168     /* */
 169     vout_InitInterlacingSupport(vout, vout->p->displayed.is_interlaced);
 170
 171     /* */
 172     vlc_object_set_destructor(vout, VoutDestructor);
 173
 174     /* */
 175     if (vlc_clone(&vout->p->thread, Thread, vout,
 176                   VLC_THREAD_PRIORITY_OUTPUT)) {
 177         spu_Destroy(vout->p->spu);
 178         vlc_object_release(vout);
 179         return NULL;
 180     }
 181
 182     vout_control_WaitEmpty(&vout->p->control);
 183
 184     if (vout->p->dead) {
 185         msg_Err(vout, "video output creation failed");
 186         vout_CloseAndRelease(vout);
 187         return NULL;
 188     }
 189
 190     vout->p->input = cfg->input;
 191     if (vout->p->input)
 192         spu_Attach(vout->p->spu, vout->p->input, true);
 193
 194     return vout;
 195 }
 196
 197 vout_thread_t *(vout_Request)(vlc_object_t *object,
 198                               const vout_configuration_t *cfg)
 199 {
 200     vout_thread_t *vout = cfg->vout;
 201     if (cfg->change_fmt && !cfg->fmt) {
 202         if (vout)
 203             vout_CloseAndRelease(vout);
 204         return NULL;
 205     }
 206
 207     /* If a vout is provided, try reusing it */
 208     if (vout) {
 209         if (vout->p->input != cfg->input) {
 210             if (vout->p->input)
 211                 spu_Attach(vout->p->spu, vout->p->input, false);
 212             vout->p->input = cfg->input;
 213             if (vout->p->input)
 214                 spu_Attach(vout->p->spu, vout->p->input, true);
 215         }
 216
 217         if (cfg->change_fmt) {
 218             vout_control_cmd_t cmd;
 219             vout_control_cmd_Init(&cmd, VOUT_CONTROL_REINIT);
 220             cmd.u.cfg = cfg;
 221
 222             vout_control_Push(&vout->p->control, &cmd);
 223             vout_control_WaitEmpty(&vout->p->control);
 224         }
 225
 226         if (!vout->p->dead) {
 227             msg_Dbg(object, "reusing provided vout");
 228             return vout;
 229         }
 230         vout_CloseAndRelease(vout);
 231
 232         msg_Warn(object, "cannot reuse provided vout");
 233     }
 234     return VoutCreate(object, cfg);
 235 }
 236
 237 void vout_Close(vout_thread_t *vout)
 238 {
 239     assert(vout);
 240
 241     if (vout->p->input)
 242         spu_Attach(vout->p->spu, vout->p->input, false);
 243
 244     vout_snapshot_End(&vout->p->snapshot);
 245
 246     vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_CLEAN);
 247     vlc_join(vout->p->thread, NULL);
 248
 249     vlc_mutex_lock(&vout->p->spu_lock);
 250     spu_Destroy(vout->p->spu);
 251     vout->p->spu = NULL;
 252     vlc_mutex_unlock(&vout->p->spu_lock);
 253 }
 254
 255 /* */
 256 static void VoutDestructor(vlc_object_t *object)
 257 {
 258     vout_thread_t *vout = (vout_thread_t *)object;
 259
 260     /* Make sure the vout was stopped first */
 261     //assert(!vout->p_module);
 262
 263     free(vout->p->splitter_name);
 264
 265     /* Destroy the locks */
 266     vlc_mutex_destroy(&vout->p->spu_lock);
 267     vlc_mutex_destroy(&vout->p->picture_lock);
 268     vlc_mutex_destroy(&vout->p->filter.lock);
 269     vout_control_Clean(&vout->p->control);
 270
 271     /* */
 272     vout_statistic_Clean(&vout->p->statistic);
 273
 274     /* */
 275     vout_snapshot_Clean(&vout->p->snapshot);
 276
 277     video_format_Clean(&vout->p->original);
 278 }
 279
 280 /* */
 281 void vout_ChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
 282 {
 283     vout_control_cmd_t cmd;
 284     vout_control_cmd_Init(&cmd, VOUT_CONTROL_PAUSE);
 285     cmd.u.pause.is_on = is_paused;
 286     cmd.u.pause.date  = date;
 287     vout_control_Push(&vout->p->control, &cmd);
 288
 289     vout_control_WaitEmpty(&vout->p->control);
 290 }
 291
 292 void vout_GetResetStatistic(vout_thread_t *vout, int *displayed, int *lost)
 293 {
 294     vout_statistic_GetReset( &vout->p->statistic, displayed, lost );
 295 }
 296
 297 void vout_Flush(vout_thread_t *vout, mtime_t date)
 298 {
 299     vout_control_PushTime(&vout->p->control, VOUT_CONTROL_FLUSH, date);
 300     vout_control_WaitEmpty(&vout->p->control);
 301 }
 302
 303 void vout_Reset(vout_thread_t *vout)
 304 {
 305     vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_RESET);
 306     vout_control_WaitEmpty(&vout->p->control);
 307 }
 308
 309 bool vout_IsEmpty(vout_thread_t *vout)
 310 {
 311     vlc_mutex_lock(&vout->p->picture_lock);
 312
 313     picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
 314     if (picture)
 315         picture_Release(picture);
 316
 317     vlc_mutex_unlock(&vout->p->picture_lock);
 318
 319     return !picture;
 320 }
 321
 322 void vout_FixLeaks( vout_thread_t *vout )
 323 {
 324     vlc_mutex_lock(&vout->p->picture_lock);
 325
 326     picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
 327     if (!picture) {
 328         picture = picture_pool_Get(vout->p->decoder_pool);
 329     }
 330
 331     if (picture) {
 332         picture_Release(picture);
 333         /* Not all pictures has been displayed yet or some are
 334          * free */
 335         vlc_mutex_unlock(&vout->p->picture_lock);
 336         return;
 337     }
 338
 339     /* There is no reason that no pictures are available, force one
 340      * from the pool, becarefull with it though */
 341     msg_Err(vout, "pictures leaked, trying to workaround");
 342
 343     /* */
 344     picture_pool_NonEmpty(vout->p->decoder_pool, false);
 345
 346     vlc_mutex_unlock(&vout->p->picture_lock);
 347 }
 348 void vout_NextPicture(vout_thread_t *vout, mtime_t *duration)
 349 {
 350     vout_control_cmd_t cmd;
 351     vout_control_cmd_Init(&cmd, VOUT_CONTROL_STEP);
 352     cmd.u.time_ptr = duration;
 353
 354     vout_control_Push(&vout->p->control, &cmd);
 355     vout_control_WaitEmpty(&vout->p->control);
 356 }
 357
 358 void vout_DisplayTitle(vout_thread_t *vout, const char *title)
 359 {
 360     assert(title);
 361     vout_control_PushString(&vout->p->control, VOUT_CONTROL_OSD_TITLE, title);
 362 }
 363
 364 void vout_PutSubpicture( vout_thread_t *vout, subpicture_t *subpic )
 365 {
 366     vout_control_cmd_t cmd;
 367     vout_control_cmd_Init(&cmd, VOUT_CONTROL_SUBPICTURE);
 368     cmd.u.subpicture = subpic;
 369
 370     vout_control_Push(&vout->p->control, &cmd);
 371 }
 372 int vout_RegisterSubpictureChannel( vout_thread_t *vout )
 373 {
 374     int channel = SPU_DEFAULT_CHANNEL;
 375
 376     vlc_mutex_lock(&vout->p->spu_lock);
 377     if (vout->p->spu)
 378         channel = spu_RegisterChannel(vout->p->spu);
 379     vlc_mutex_unlock(&vout->p->spu_lock);
 380
 381     return channel;
 382 }
 383 void vout_FlushSubpictureChannel( vout_thread_t *vout, int channel )
 384 {
 385     vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_FLUSH_SUBPICTURE,
 386                              channel);
 387 }
 388
 389 /**
 390  * It retreives a picture from the vout or NULL if no pictures are
 391  * available yet.
 392  *
 393  * You MUST call vout_PutPicture or vout_ReleasePicture on it.
 394  *
 395  * You may use vout_HoldPicture(paired with vout_ReleasePicture) to keep a
 396  * read-only reference.
 397  */
 398 picture_t *vout_GetPicture(vout_thread_t *vout)
 399 {
 400     /* Get lock */
 401     vlc_mutex_lock(&vout->p->picture_lock);
 402     picture_t *picture = picture_pool_Get(vout->p->decoder_pool);
 403     if (picture) {
 404         picture_Reset(picture);
 405         VideoFormatCopyCropAr(&picture->format, &vout->p->original);
 406     }
 407     vlc_mutex_unlock(&vout->p->picture_lock);
 408
 409     return picture;
 410 }
 411
 412 /**
 413  * It gives to the vout a picture to be displayed.
 414  *
 415  * The given picture MUST comes from vout_GetPicture.
 416  *
 417  * Becareful, after vout_PutPicture is called, picture_t::p_next cannot be
 418  * read/used.
 419  */
 420 void vout_PutPicture(vout_thread_t *vout, picture_t *picture)
 421 {
 422     vlc_mutex_lock(&vout->p->picture_lock);
 423
 424     picture->p_next = NULL;
 425     picture_fifo_Push(vout->p->decoder_fifo, picture);
 426
 427     vlc_mutex_unlock(&vout->p->picture_lock);
 428
 429     vout_control_Wake(&vout->p->control);
 430 }
 431
 432 /**
 433  * It releases a picture retreived by vout_GetPicture.
 434  */
 435 void vout_ReleasePicture(vout_thread_t *vout, picture_t *picture)
 436 {
 437     vlc_mutex_lock(&vout->p->picture_lock);
 438
 439     picture_Release(picture);
 440
 441     vlc_mutex_unlock(&vout->p->picture_lock);
 442
 443     vout_control_Wake(&vout->p->control);
 444 }
 445
 446 /**
 447  * It increment the reference counter of a picture retreived by
 448  * vout_GetPicture.
 449  */
 450 void vout_HoldPicture(vout_thread_t *vout, picture_t *picture)
 451 {
 452     vlc_mutex_lock(&vout->p->picture_lock);
 453
 454     picture_Hold(picture);
 455
 456     vlc_mutex_unlock(&vout->p->picture_lock);
 457 }
 458
 459 /* */
 460 int vout_GetSnapshot(vout_thread_t *vout,
 461                      block_t **image_dst, picture_t **picture_dst,
 462                      video_format_t *fmt,
 463                      const char *type, mtime_t timeout)
 464 {
 465     picture_t *picture = vout_snapshot_Get(&vout->p->snapshot, timeout);
 466     if (!picture) {
 467         msg_Err(vout, "Failed to grab a snapshot");
 468         return VLC_EGENERIC;
 469     }
 470
 471     if (image_dst) {
 472         vlc_fourcc_t codec = VLC_CODEC_PNG;
 473         if (type && image_Type2Fourcc(type))
 474             codec = image_Type2Fourcc(type);
 475
 476         const int override_width  = var_GetInteger(vout, "snapshot-width");
 477         const int override_height = var_GetInteger(vout, "snapshot-height");
 478
 479         if (picture_Export(VLC_OBJECT(vout), image_dst, fmt,
 480                            picture, codec, override_width, override_height)) {
 481             msg_Err(vout, "Failed to convert image for snapshot");
 482             picture_Release(picture);
 483             return VLC_EGENERIC;
 484         }
 485     }
 486     if (picture_dst)
 487         *picture_dst = picture;
 488     else
 489         picture_Release(picture);
 490     return VLC_SUCCESS;
 491 }
 492
 493 /* vout_Control* are usable by anyone at anytime */
 494 void vout_ControlChangeFullscreen(vout_thread_t *vout, bool fullscreen)
 495 {
 496     vout_control_PushBool(&vout->p->control, VOUT_CONTROL_FULLSCREEN,
 497                           fullscreen);
 498 }
 499 void vout_ControlChangeOnTop(vout_thread_t *vout, bool is_on_top)
 500 {
 501     vout_control_PushBool(&vout->p->control, VOUT_CONTROL_ON_TOP,
 502                           is_on_top);
 503 }
 504 void vout_ControlChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
 505 {
 506     vout_control_PushBool(&vout->p->control, VOUT_CONTROL_DISPLAY_FILLED,
 507                           is_filled);
 508 }
 509 void vout_ControlChangeZoom(vout_thread_t *vout, int num, int den)
 510 {
 511     vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ZOOM,
 512                           num, den);
 513 }
 514 void vout_ControlChangeSampleAspectRatio(vout_thread_t *vout,
 515                                          unsigned num, unsigned den)
 516 {
 517     vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ASPECT_RATIO,
 518                           num, den);
 519 }
 520 void vout_ControlChangeCropRatio(vout_thread_t *vout,
 521                                  unsigned num, unsigned den)
 522 {
 523     vout_control_PushPair(&vout->p->control, VOUT_CONTROL_CROP_RATIO,
 524                           num, den);
 525 }
 526 void vout_ControlChangeCropWindow(vout_thread_t *vout,
 527                                   int x, int y, int width, int height)
 528 {
 529     vout_control_cmd_t cmd;
 530     vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_WINDOW);
 531     cmd.u.window.x      = __MAX(x, 0);
 532     cmd.u.window.y      = __MAX(y, 0);
 533     cmd.u.window.width  = __MAX(width, 0);
 534     cmd.u.window.height = __MAX(height, 0);
 535
 536     vout_control_Push(&vout->p->control, &cmd);
 537 }
 538 void vout_ControlChangeCropBorder(vout_thread_t *vout,
 539                                   int left, int top, int right, int bottom)
 540 {
 541     vout_control_cmd_t cmd;
 542     vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_BORDER);
 543     cmd.u.border.left   = __MAX(left, 0);
 544     cmd.u.border.top    = __MAX(top, 0);
 545     cmd.u.border.right  = __MAX(right, 0);
 546     cmd.u.border.bottom = __MAX(bottom, 0);
 547
 548     vout_control_Push(&vout->p->control, &cmd);
 549 }
 550 void vout_ControlChangeFilters(vout_thread_t *vout, const char *filters)
 551 {
 552     vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_FILTERS,
 553                             filters);
 554 }
 555 void vout_ControlChangeSubFilters(vout_thread_t *vout, const char *filters)
 556 {
 557     vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_FILTERS,
 558                             filters);
 559 }
 560 void vout_ControlChangeSubMargin(vout_thread_t *vout, int margin)
 561 {
 562     vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_MARGIN,
 563                              margin);
 564 }
 565
 566 /* */
 567 static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
 568 {
 569     /* Load configuration */
 570     cfg->is_fullscreen = var_CreateGetBool(vout, "fullscreen");
 571     cfg->display.title = title;
 572     const int display_width = var_CreateGetInteger(vout, "width");
 573     const int display_height = var_CreateGetInteger(vout, "height");
 574     cfg->display.width   = display_width > 0  ? display_width  : 0;
 575     cfg->display.height  = display_height > 0 ? display_height : 0;
 576     cfg->is_display_filled  = var_CreateGetBool(vout, "autoscale");
 577     unsigned msar_num, msar_den;
 578     if (var_InheritURational(vout, &msar_num, &msar_den, "monitor-par") ||
 579         msar_num <= 0 || msar_den <= 0) {
 580         msar_num = 1;
 581         msar_den = 1;
 582     }
 583     cfg->display.sar.num = msar_num;
 584     cfg->display.sar.den = msar_den;
 585     unsigned zoom_den = 1000;
 586     unsigned zoom_num = zoom_den * var_CreateGetFloat(vout, "scale");
 587     vlc_ureduce(&zoom_num, &zoom_den, zoom_num, zoom_den, 0);
 588     cfg->zoom.num = zoom_num;
 589     cfg->zoom.den = zoom_den;
 590     cfg->align.vertical = VOUT_DISPLAY_ALIGN_CENTER;
 591     cfg->align.horizontal = VOUT_DISPLAY_ALIGN_CENTER;
 592     const int align_mask = var_CreateGetInteger(vout, "align");
 593     if (align_mask & 0x1)
 594         cfg->align.horizontal = VOUT_DISPLAY_ALIGN_LEFT;
 595     else if (align_mask & 0x2)
 596         cfg->align.horizontal = VOUT_DISPLAY_ALIGN_RIGHT;
 597     if (align_mask & 0x4)
 598         cfg->align.vertical = VOUT_DISPLAY_ALIGN_TOP;
 599     else if (align_mask & 0x8)
 600         cfg->align.vertical = VOUT_DISPLAY_ALIGN_BOTTOM;
 601 }
 602
 603 vout_window_t * vout_NewDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
 604                                       const vout_window_cfg_t *cfg)
 605 {
 606     VLC_UNUSED(vd);
 607     vout_window_cfg_t cfg_override = *cfg;
 608
 609     if (!var_InheritBool( vout, "embedded-video"))
 610         cfg_override.is_standalone = true;
 611
 612     if (vout->p->window.is_unused && vout->p->window.object) {
 613         assert(!vout->p->splitter_name);
 614         if (!cfg_override.is_standalone == !vout->p->window.cfg.is_standalone &&
 615             cfg_override.type           == vout->p->window.cfg.type) {
 616             /* Reuse the stored window */
 617             msg_Dbg(vout, "Reusing previous vout window");
 618             vout_window_t *window = vout->p->window.object;
 619             if (cfg_override.width  != vout->p->window.cfg.width ||
 620                 cfg_override.height != vout->p->window.cfg.height)
 621                 vout_window_SetSize(window,
 622                                     cfg_override.width, cfg_override.height);
 623             vout->p->window.is_unused = false;
 624             vout->p->window.cfg       = cfg_override;
 625             return window;
 626         }
 627
 628         vout_window_Delete(vout->p->window.object);
 629         vout->p->window.is_unused = true;
 630         vout->p->window.object    = NULL;
 631     }
 632
 633     vout_window_t *window = vout_window_New(VLC_OBJECT(vout), "$window",
 634                                             &cfg_override);
 635     if (!window)
 636         return NULL;
 637     if (!vout->p->splitter_name) {
 638         vout->p->window.is_unused = false;
 639         vout->p->window.cfg       = cfg_override;
 640         vout->p->window.object    = window;
 641     }
 642     return window;
 643 }
 644
 645 void vout_DeleteDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
 646                               vout_window_t *window)
 647 {
 648     VLC_UNUSED(vd);
 649     if (!vout->p->window.is_unused && vout->p->window.object == window) {
 650         vout->p->window.is_unused = true;
 651     } else if (vout->p->window.is_unused && vout->p->window.object && !window) {
 652         vout_window_Delete(vout->p->window.object);
 653         vout->p->window.is_unused = true;
 654         vout->p->window.object    = NULL;
 655     } else if (window) {
 656         vout_window_Delete(window);
 657     }
 658 }
 659
 660 /* */
 661 static picture_t *VoutVideoFilterInteractiveNewPicture(filter_t *filter)
 662 {
 663     vout_thread_t *vout = (vout_thread_t*)filter->p_owner;
 664
 665     picture_t *picture = picture_pool_Get(vout->p->private_pool);
 666     if (picture) {
 667         picture_Reset(picture);
 668         VideoFormatCopyCropAr(&picture->format, &filter->fmt_out.video);
 669     }
 670     return picture;
 671 }
 672 static picture_t *VoutVideoFilterStaticNewPicture(filter_t *filter)
 673 {
 674     vout_thread_t *vout = (vout_thread_t*)filter->p_owner;
 675
 676     vlc_assert_locked(&vout->p->filter.lock);
 677     if (filter_chain_GetLength(vout->p->filter.chain_interactive) == 0)
 678         return VoutVideoFilterInteractiveNewPicture(filter);
 679
 680     return picture_NewFromFormat(&filter->fmt_out.video);
 681 }
 682 static void VoutVideoFilterDelPicture(filter_t *filter, picture_t *picture)
 683 {
 684     VLC_UNUSED(filter);
 685     picture_Release(picture);
 686 }
 687 static int VoutVideoFilterStaticAllocationSetup(filter_t *filter, void *data)
 688 {
 689     filter->pf_video_buffer_new = VoutVideoFilterStaticNewPicture;
 690     filter->pf_video_buffer_del = VoutVideoFilterDelPicture;
 691     filter->p_owner             = data; /* vout */
 692     return VLC_SUCCESS;
 693 }
 694 static int VoutVideoFilterInteractiveAllocationSetup(filter_t *filter, void *data)
 695 {
 696     filter->pf_video_buffer_new = VoutVideoFilterInteractiveNewPicture;
 697     filter->pf_video_buffer_del = VoutVideoFilterDelPicture;
 698     filter->p_owner             = data; /* vout */
 699     return VLC_SUCCESS;
 700 }
 701 static void ThreadFilterFlush(vout_thread_t *vout, bool is_locked)
 702 {
 703     if (vout->p->displayed.current)
 704         picture_Release( vout->p->displayed.current );
 705     vout->p->displayed.current = NULL;
 706
 707     if (vout->p->displayed.next)
 708         picture_Release( vout->p->displayed.next );
 709     vout->p->displayed.next = NULL;
 710
 711     if (!is_locked)
 712         vlc_mutex_lock(&vout->p->filter.lock);
 713     filter_chain_VideoFlush(vout->p->filter.chain_static);
 714     filter_chain_VideoFlush(vout->p->filter.chain_interactive);
 715     if (!is_locked)
 716         vlc_mutex_unlock(&vout->p->filter.lock);
 717 }
 718
 719 typedef struct {
 720     char           *name;
 721     config_chain_t *cfg;
 722 } vout_filter_t;
 723
 724 static void ThreadChangeFilters(vout_thread_t *vout,
 725                                 const video_format_t *source,
 726                                 const char *filters,
 727                                 bool is_locked)
 728 {
 729     ThreadFilterFlush(vout, is_locked);
 730
 731     vlc_array_t array_static;
 732     vlc_array_t array_interactive;
 733
 734     vlc_array_init(&array_static);
 735     vlc_array_init(&array_interactive);
 736     char *current = filters ? strdup(filters) : NULL;
 737     while (current) {
 738         config_chain_t *cfg;
 739         char *name;
 740         char *next = config_ChainCreate(&name, &cfg, current);
 741
 742         if (name && *name) {
 743             vout_filter_t *e = xmalloc(sizeof(*e));
 744             e->name = name;
 745             e->cfg  = cfg;
 746             if (!strcmp(e->name, "deinterlace") ||
 747                 !strcmp(e->name, "postproc")) {
 748                 vlc_array_append(&array_static, e);
 749             } else {
 750                 vlc_array_append(&array_interactive, e);
 751             }
 752         } else {
 753             if (cfg)
 754                 config_ChainDestroy(cfg);
 755             free(name);
 756         }
 757         free(current);
 758         current = next;
 759     }
 760
 761     if (!is_locked)
 762         vlc_mutex_lock(&vout->p->filter.lock);
 763
 764     es_format_t fmt_target;
 765     es_format_InitFromVideo(&fmt_target, source ? source : &vout->p->filter.format);
 766
 767     es_format_t fmt_current = fmt_target;
 768
 769     for (int a = 0; a < 2; a++) {
 770         vlc_array_t    *array = a == 0 ? &array_static :
 771                                          &array_interactive;
 772         filter_chain_t *chain = a == 0 ? vout->p->filter.chain_static :
 773                                          vout->p->filter.chain_interactive;
 774
 775         filter_chain_Reset(chain, &fmt_current, &fmt_current);
 776         for (int i = 0; i < vlc_array_count(array); i++) {
 777             vout_filter_t *e = vlc_array_item_at_index(array, i);
 778             msg_Dbg(vout, "Adding '%s' as %s", e->name, a == 0 ? "static" : "interactive");
 779             if (!filter_chain_AppendFilter(chain, e->name, e->cfg, NULL, NULL)) {
 780                 msg_Err(vout, "Failed to add filter '%s'", e->name);
 781                 config_ChainDestroy(e->cfg);
 782             }
 783             free(e->name);
 784             free(e);
 785         }
 786         fmt_current = *filter_chain_GetFmtOut(chain);
 787         vlc_array_clear(array);
 788     }
 789     VideoFormatCopyCropAr(&fmt_target.video, &fmt_current.video);
 790     if (!es_format_IsSimilar(&fmt_current, &fmt_target)) {
 791         msg_Dbg(vout, "Adding a filter to compensate for format changes");
 792         if (!filter_chain_AppendFilter(vout->p->filter.chain_interactive, NULL, NULL,
 793                                        &fmt_current, &fmt_target)) {
 794             msg_Err(vout, "Failed to compensate for the format changes, removing all filters");
 795             filter_chain_Reset(vout->p->filter.chain_static,      &fmt_target, &fmt_target);
 796             filter_chain_Reset(vout->p->filter.chain_interactive, &fmt_target, &fmt_target);
 797         }
 798     }
 799
 800     if (vout->p->filter.configuration != filters) {
 801         free(vout->p->filter.configuration);
 802         vout->p->filter.configuration = filters ? strdup(filters) : NULL;
 803     }
 804     if (source) {
 805         video_format_Clean(&vout->p->filter.format);
 806         video_format_Copy(&vout->p->filter.format, source);
 807     }
 808
 809     if (!is_locked)
 810         vlc_mutex_unlock(&vout->p->filter.lock);
 811 }
 812
 813
 814 /* */
 815 static int ThreadDisplayPreparePicture(vout_thread_t *vout, bool reuse, bool is_late_dropped)
 816 {
 817     int lost_count = 0;
 818
 819     vlc_mutex_lock(&vout->p->filter.lock);
 820
 821     picture_t *picture = filter_chain_VideoFilter(vout->p->filter.chain_static, NULL);
 822     assert(!reuse || !picture);
 823
 824     while (!picture) {
 825         picture_t *decoded;
 826         if (reuse && vout->p->displayed.decoded) {
 827             decoded = picture_Hold(vout->p->displayed.decoded);
 828         } else {
 829             decoded = picture_fifo_Pop(vout->p->decoder_fifo);
 830             if (is_late_dropped && decoded && !decoded->b_force) {
 831                 const mtime_t predicted = mdate() + 0; /* TODO improve */
 832                 const mtime_t late = predicted - decoded->date;
 833                 if (late > VOUT_DISPLAY_LATE_THRESHOLD) {
 834                     msg_Warn(vout, "picture is too late to be displayed (missing %d ms)", (int)(late/1000));
 835                     picture_Release(decoded);
 836                     lost_count++;
 837                     continue;
 838                 } else if (late > 0) {
 839                     msg_Dbg(vout, "picture might be displayed late (missing %d ms)", (int)(late/1000));
 840                 }
 841             }
 842             if (decoded &&
 843                 !VideoFormatIsCropArEqual(&decoded->format, &vout->p->filter.format))
 844                 ThreadChangeFilters(vout, &decoded->format, vout->p->filter.configuration, true);
 845         }
 846         if (!decoded)
 847             break;
 848         reuse = false;
 849
 850         if (vout->p->displayed.decoded)
 851             picture_Release(vout->p->displayed.decoded);
 852
 853         vout->p->displayed.decoded       = picture_Hold(decoded);
 854         vout->p->displayed.timestamp     = decoded->date;
 855         vout->p->displayed.is_interlaced = !decoded->b_progressive;
 856         vout->p->displayed.qtype         = decoded->i_qtype;
 857
 858         picture = filter_chain_VideoFilter(vout->p->filter.chain_static, decoded);
 859     }
 860
 861     vlc_mutex_unlock(&vout->p->filter.lock);
 862
 863     vout_statistic_Update(&vout->p->statistic, 0, lost_count);
 864     if (!picture)
 865         return VLC_EGENERIC;
 866
 867     assert(!vout->p->displayed.next);
 868     if (!vout->p->displayed.current)
 869         vout->p->displayed.current = picture;
 870     else
 871         vout->p->displayed.next    = picture;
 872     return VLC_SUCCESS;
 873 }
 874
 875 static int ThreadDisplayRenderPicture(vout_thread_t *vout, bool is_forced)
 876 {
 877     vout_thread_sys_t *sys = vout->p;
 878     vout_display_t *vd = vout->p->display.vd;
 879
 880     picture_t *torender = picture_Hold(vout->p->displayed.current);
 881
 882     vout_chrono_Start(&vout->p->render);
 883
 884     vlc_mutex_lock(&vout->p->filter.lock);
 885     picture_t *filtered = filter_chain_VideoFilter(vout->p->filter.chain_interactive, torender);
 886     vlc_mutex_unlock(&vout->p->filter.lock);
 887
 888     if (!filtered)
 889         return VLC_EGENERIC;
 890
 891     if (filtered->date != vout->p->displayed.current->date)
 892         msg_Warn(vout, "Unsupported timestamp modifications done by chain_interactive");
 893
 894     /*
 895      * Get the subpicture to be displayed
 896      */
 897     const bool do_snapshot = vout_snapshot_IsRequested(&vout->p->snapshot);
 898     mtime_t render_subtitle_date;
 899     if (vout->p->pause.is_on)
 900         render_subtitle_date = vout->p->pause.date;
 901     else
 902         render_subtitle_date = filtered->date > 1 ? filtered->date : mdate();
 903     mtime_t render_osd_date = mdate(); /* FIXME wrong */
 904
 905     /*
 906      * Get the subpicture to be displayed
 907      */
 908     const bool do_dr_spu = !do_snapshot &&
 909                            vd->info.subpicture_chromas &&
 910                            *vd->info.subpicture_chromas != 0;
 911     const bool do_early_spu = !do_dr_spu &&
 912                               (vd->info.is_slow ||
 913                                sys->display.use_dr ||
 914                                do_snapshot ||
 915                                !vout_IsDisplayFiltered(vd) ||
 916                                vd->fmt.i_width * vd->fmt.i_height <= vd->source.i_width * vd->source.i_height);
 917
 918     const vlc_fourcc_t *subpicture_chromas;
 919     video_format_t fmt_spu;
 920     if (do_dr_spu) {
 921         fmt_spu = vd->source; /* TODO improve */
 922         subpicture_chromas = vd->info.subpicture_chromas;
 923     } else {
 924         if (do_early_spu) {
 925             fmt_spu = vd->source;
 926         } else {
 927             fmt_spu = vd->fmt;
 928             fmt_spu.i_sar_num = vd->cfg->display.sar.num;
 929             fmt_spu.i_sar_den = vd->cfg->display.sar.den;
 930         }
 931         subpicture_chromas = NULL;
 932
 933         if (vout->p->spu_blend &&
 934             vout->p->spu_blend->fmt_out.video.i_chroma != fmt_spu.i_chroma) {
 935             filter_DeleteBlend(vout->p->spu_blend);
 936             vout->p->spu_blend = NULL;
 937             vout->p->spu_blend_chroma = 0;
 938         }
 939         if (!vout->p->spu_blend && vout->p->spu_blend_chroma != fmt_spu.i_chroma) {
 940             vout->p->spu_blend_chroma = fmt_spu.i_chroma;
 941             vout->p->spu_blend = filter_NewBlend(VLC_OBJECT(vout), &fmt_spu);
 942             if (!vout->p->spu_blend)
 943                 msg_Err(vout, "Failed to create blending filter, OSD/Subtitles will not work");
 944         }
 945     }
 946
 947     subpicture_t *subpic = spu_Render(vout->p->spu,
 948                                       subpicture_chromas, &fmt_spu,
 949                                       &vd->source,
 950                                       render_subtitle_date, render_osd_date,
 951                                       do_snapshot);
 952     /*
 953      * Perform rendering
 954      *
 955      * We have to:
 956      * - be sure to end up with a direct buffer.
 957      * - blend subtitles, and in a fast access buffer
 958      */
 959     bool is_direct = vout->p->decoder_pool == vout->p->display_pool;
 960     picture_t *todisplay = filtered;
 961     if (do_early_spu && subpic) {
 962         todisplay = picture_pool_Get(vout->p->private_pool);
 963         if (todisplay) {
 964             VideoFormatCopyCropAr(&todisplay->format, &filtered->format);
 965             picture_Copy(todisplay, filtered);
 966             if (vout->p->spu_blend)
 967                 picture_BlendSubpicture(todisplay, vout->p->spu_blend, subpic);
 968         }
 969         picture_Release(filtered);
 970         subpicture_Delete(subpic);
 971         subpic = NULL;
 972
 973         if (!todisplay)
 974             return VLC_EGENERIC;
 975     }
 976
 977     picture_t *direct;
 978     if (!is_direct && todisplay) {
 979         direct = picture_pool_Get(vout->p->display_pool);
 980         if (direct) {
 981             VideoFormatCopyCropAr(&direct->format, &todisplay->format);
 982             picture_Copy(direct, todisplay);
 983         }
 984         picture_Release(todisplay);
 985     } else {
 986         direct = todisplay;
 987     }
 988
 989     if (!direct) {
 990         if (subpic)
 991             subpicture_Delete(subpic);
 992         return VLC_EGENERIC;
 993     }
 994
 995     /*
 996      * Take a snapshot if requested
 997      */
 998     if (do_snapshot)
 999         vout_snapshot_Set(&vout->p->snapshot, &vd->source, direct);
1000
1001     /* Render the direct buffer */
1002     assert(vout_IsDisplayFiltered(vd) == !sys->display.use_dr);
1003     vout_UpdateDisplaySourceProperties(vd, &direct->format);
1004     if (sys->display.use_dr) {
1005         vout_display_Prepare(vd, direct, subpic);
1006     } else {
1007         sys->display.filtered = vout_FilterDisplay(vd, direct);
1008         if (sys->display.filtered) {
1009             if (!do_dr_spu && !do_early_spu && vout->p->spu_blend && subpic)
1010                 picture_BlendSubpicture(sys->display.filtered, vout->p->spu_blend, subpic);
1011             vout_display_Prepare(vd, sys->display.filtered, do_dr_spu ? subpic : NULL);
1012         }
1013         if (!do_dr_spu && subpic)
1014             subpicture_Delete(subpic);
1015         if (!sys->display.filtered)
1016             return VLC_EGENERIC;
1017     }
1018
1019     vout_chrono_Stop(&vout->p->render);
1020 #if 0
1021         {
1022         static int i = 0;
1023         if (((i++)%10) == 0)
1024             msg_Info(vout, "render: avg %d ms var %d ms",
1025                      (int)(vout->p->render.avg/1000), (int)(vout->p->render.var/1000));
1026         }
1027 #endif
1028
1029     /* Wait the real date (for rendering jitter) */
1030 #if 0
1031     mtime_t delay = direct->date - mdate();
1032     if (delay < 1000)
1033         msg_Warn(vout, "picture is late (%lld ms)", delay / 1000);
1034 #endif
1035     if (!is_forced)
1036         mwait(direct->date);
1037
1038     /* Display the direct buffer returned by vout_RenderPicture */
1039     vout->p->displayed.date = mdate();
1040     vout_display_Display(vd,
1041                          sys->display.filtered ? sys->display.filtered
1042                                                 : direct,
1043                          subpic);
1044     sys->display.filtered = NULL;
1045
1046     vout_statistic_Update(&vout->p->statistic, 1, 0);
1047
1048     return VLC_SUCCESS;
1049 }
1050
1051 static int ThreadDisplayPicture(vout_thread_t *vout,
1052                                 bool now, mtime_t *deadline)
1053 {
1054     bool is_late_dropped = vout->p->is_late_dropped && !vout->p->pause.is_on && !now;
1055     bool first = !vout->p->displayed.current;
1056     if (first && ThreadDisplayPreparePicture(vout, true, is_late_dropped)) /* FIXME not sure it is ok */
1057         return VLC_EGENERIC;
1058     if (!vout->p->pause.is_on || now) {
1059         while (!vout->p->displayed.next) {
1060             if (ThreadDisplayPreparePicture(vout, false, is_late_dropped)) {
1061                 break;
1062             }
1063         }
1064     }
1065
1066     const mtime_t date = mdate();
1067     const mtime_t render_delay = vout_chrono_GetHigh(&vout->p->render) + VOUT_MWAIT_TOLERANCE;
1068
1069     mtime_t date_next = VLC_TS_INVALID;
1070     if (!vout->p->pause.is_on && vout->p->displayed.next)
1071         date_next = vout->p->displayed.next->date - render_delay;
1072
1073     /* FIXME/XXX we must redisplay the last decoded picture (because
1074      * of potential vout updated, or filters update or SPU update)
1075      * For now a high update period is needed but it coulmd be removed
1076      * if and only if:
1077      * - vout module emits events from theselves.
1078      * - *and* SPU is modified to emit an event or a deadline when needed.
1079      *
1080      * So it will be done latter.
1081      */
1082     mtime_t date_refresh = VLC_TS_INVALID;
1083     if (vout->p->displayed.date > VLC_TS_INVALID)
1084         date_refresh = vout->p->displayed.date + VOUT_REDISPLAY_DELAY - render_delay;
1085
1086     bool drop = now;
1087     if (date_next != VLC_TS_INVALID)
1088         drop |= date_next + 0 <= date;
1089
1090     bool refresh = false;
1091     if (date_refresh > VLC_TS_INVALID)
1092         refresh = date_refresh <= date;
1093
1094     if (!first && !refresh && !drop) {
1095         if (date_next != VLC_TS_INVALID && date_refresh != VLC_TS_INVALID)
1096             *deadline = __MIN(date_next, date_refresh);
1097         else if (date_next != VLC_TS_INVALID)
1098             *deadline = date_next;
1099         else if (date_refresh != VLC_TS_INVALID)
1100             *deadline = date_refresh;
1101         return VLC_EGENERIC;
1102     }
1103
1104     if (drop) {
1105         picture_Release(vout->p->displayed.current);
1106         vout->p->displayed.current = vout->p->displayed.next;
1107         vout->p->displayed.next    = NULL;
1108     }
1109     if (!vout->p->displayed.current)
1110         return VLC_EGENERIC;
1111
1112     bool is_forced = now || (!drop && refresh) || vout->p->displayed.current->b_force;
1113     return ThreadDisplayRenderPicture(vout, is_forced);
1114 }
1115
1116 static void ThreadManage(vout_thread_t *vout,
1117                          mtime_t *deadline,
1118                          vout_interlacing_support_t *interlacing,
1119                          vout_postprocessing_support_t *postprocessing)
1120 {
1121     vlc_mutex_lock(&vout->p->picture_lock);
1122
1123     *deadline = VLC_TS_INVALID;
1124     for (;;) {
1125         if (ThreadDisplayPicture(vout, false, deadline))
1126             break;
1127     }
1128
1129     const int  picture_qtype      = vout->p->displayed.qtype;
1130     const bool picture_interlaced = vout->p->displayed.is_interlaced;
1131
1132     vlc_mutex_unlock(&vout->p->picture_lock);
1133
1134     /* Post processing */
1135     vout_SetPostProcessingState(vout, postprocessing, picture_qtype);
1136
1137     /* Deinterlacing */
1138     vout_SetInterlacingState(vout, interlacing, picture_interlaced);
1139
1140     vout_ManageWrapper(vout);
1141 }
1142
1143 static void ThreadDisplaySubpicture(vout_thread_t *vout,
1144                                     subpicture_t *subpicture)
1145 {
1146     spu_PutSubpicture(vout->p->spu, subpicture);
1147 }
1148
1149 static void ThreadFlushSubpicture(vout_thread_t *vout, int channel)
1150 {
1151     spu_ClearChannel(vout->p->spu, channel);
1152 }
1153
1154 static void ThreadDisplayOsdTitle(vout_thread_t *vout, const char *string)
1155 {
1156     if (!vout->p->title.show)
1157         return;
1158
1159     vout_OSDText(vout, SPU_DEFAULT_CHANNEL,
1160                  vout->p->title.position, INT64_C(1000) * vout->p->title.timeout,
1161                  string);
1162 }
1163
1164 static void ThreadChangeSubFilters(vout_thread_t *vout, const char *filters)
1165 {
1166     spu_ChangeFilters(vout->p->spu, filters);
1167 }
1168 static void ThreadChangeSubMargin(vout_thread_t *vout, int margin)
1169 {
1170     spu_ChangeMargin(vout->p->spu, margin);
1171 }
1172
1173 static void ThreadChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
1174 {
1175     assert(!vout->p->pause.is_on || !is_paused);
1176
1177     if (vout->p->pause.is_on) {
1178         const mtime_t duration = date - vout->p->pause.date;
1179
1180         if (vout->p->step.timestamp > VLC_TS_INVALID)
1181             vout->p->step.timestamp += duration;
1182         if (vout->p->step.last > VLC_TS_INVALID)
1183             vout->p->step.last += duration;
1184         picture_fifo_OffsetDate(vout->p->decoder_fifo, duration);
1185         if (vout->p->displayed.decoded)
1186             vout->p->displayed.decoded->date += duration;
1187         spu_OffsetSubtitleDate(vout->p->spu, duration);
1188
1189         ThreadFilterFlush(vout, false);
1190     } else {
1191         vout->p->step.timestamp = VLC_TS_INVALID;
1192         vout->p->step.last      = VLC_TS_INVALID;
1193     }
1194     vout->p->pause.is_on = is_paused;
1195     vout->p->pause.date  = date;
1196 }
1197
1198 static void ThreadFlush(vout_thread_t *vout, bool below, mtime_t date)
1199 {
1200     vout->p->step.timestamp = VLC_TS_INVALID;
1201     vout->p->step.last      = VLC_TS_INVALID;
1202
1203     ThreadFilterFlush(vout, false); /* FIXME too much */
1204
1205     picture_t *last = vout->p->displayed.decoded;
1206     if (last) {
1207         if (( below && last->date <= date) ||
1208             (!below && last->date >= date)) {
1209             picture_Release(last);
1210
1211             vout->p->displayed.decoded   = NULL;
1212             vout->p->displayed.date      = VLC_TS_INVALID;
1213             vout->p->displayed.timestamp = VLC_TS_INVALID;
1214         }
1215     }
1216
1217     picture_fifo_Flush(vout->p->decoder_fifo, date, below);
1218 }
1219
1220 static void ThreadReset(vout_thread_t *vout)
1221 {
1222     ThreadFlush(vout, true, INT64_MAX);
1223     if (vout->p->decoder_pool)
1224         picture_pool_NonEmpty(vout->p->decoder_pool, true);
1225     vout->p->pause.is_on = false;
1226     vout->p->pause.date  = mdate();
1227 }
1228
1229 static void ThreadStep(vout_thread_t *vout, mtime_t *duration)
1230 {
1231     *duration = 0;
1232
1233     if (vout->p->step.last <= VLC_TS_INVALID)
1234         vout->p->step.last = vout->p->displayed.timestamp;
1235
1236     mtime_t dummy;
1237     if (ThreadDisplayPicture(vout, true, &dummy))
1238         return;
1239
1240     vout->p->step.timestamp = vout->p->displayed.timestamp;
1241
1242     if (vout->p->step.last > VLC_TS_INVALID &&
1243         vout->p->step.timestamp > vout->p->step.last) {
1244         *duration = vout->p->step.timestamp - vout->p->step.last;
1245         vout->p->step.last = vout->p->step.timestamp;
1246         /* TODO advance subpicture by the duration ... */
1247     }
1248 }
1249
1250 static void ThreadChangeFullscreen(vout_thread_t *vout, bool fullscreen)
1251 {
1252     /* FIXME not sure setting "fullscreen" is good ... */
1253     var_SetBool(vout, "fullscreen", fullscreen);
1254     vout_SetDisplayFullscreen(vout->p->display.vd, fullscreen);
1255 }
1256
1257 static void ThreadChangeOnTop(vout_thread_t *vout, bool is_on_top)
1258 {
1259     vout_SetWindowState(vout->p->display.vd,
1260                         is_on_top ? VOUT_WINDOW_STATE_ABOVE :
1261                                     VOUT_WINDOW_STATE_NORMAL);
1262 }
1263
1264 static void ThreadChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
1265 {
1266     vout_SetDisplayFilled(vout->p->display.vd, is_filled);
1267 }
1268
1269 static void ThreadChangeZoom(vout_thread_t *vout, int num, int den)
1270 {
1271     if (num * 10 < den) {
1272         num = den;
1273         den *= 10;
1274     } else if (num > den * 10) {
1275         num = den * 10;
1276     }
1277
1278     vout_SetDisplayZoom(vout->p->display.vd, num, den);
1279 }
1280
1281 static void ThreadChangeAspectRatio(vout_thread_t *vout,
1282                                     unsigned num, unsigned den)
1283 {
1284     vout_SetDisplayAspect(vout->p->display.vd, num, den);
1285 }
1286
1287
1288 static void ThreadExecuteCropWindow(vout_thread_t *vout,
1289                                     unsigned x, unsigned y,
1290                                     unsigned width, unsigned height)
1291 {
1292     vout_SetDisplayCrop(vout->p->display.vd, 0, 0,
1293                         x, y, width, height);
1294 }
1295 static void ThreadExecuteCropBorder(vout_thread_t *vout,
1296                                     unsigned left, unsigned top,
1297                                     unsigned right, unsigned bottom)
1298 {
1299     msg_Err(vout, "ThreadExecuteCropBorder %d.%d %dx%d", left, top, right, bottom);
1300     vout_SetDisplayCrop(vout->p->display.vd, 0, 0,
1301                         left, top, -(int)right, -(int)bottom);
1302 }
1303
1304 static void ThreadExecuteCropRatio(vout_thread_t *vout,
1305                                    unsigned num, unsigned den)
1306 {
1307     vout_SetDisplayCrop(vout->p->display.vd, num, den,
1308                         0, 0, 0, 0);
1309 }
1310
1311 static int ThreadStart(vout_thread_t *vout, const vout_display_state_t *state)
1312 {
1313     vlc_mouse_Init(&vout->p->mouse);
1314     vout->p->decoder_fifo = picture_fifo_New();
1315     vout->p->decoder_pool = NULL;
1316     vout->p->display_pool = NULL;
1317     vout->p->private_pool = NULL;
1318
1319     vout->p->filter.configuration = NULL;
1320     video_format_Copy(&vout->p->filter.format, &vout->p->original);
1321     vout->p->filter.chain_static =
1322         filter_chain_New( vout, "video filter2", true,
1323                           VoutVideoFilterStaticAllocationSetup, NULL, vout);
1324     vout->p->filter.chain_interactive =
1325         filter_chain_New( vout, "video filter2", true,
1326                           VoutVideoFilterInteractiveAllocationSetup, NULL, vout);
1327
1328     vout_display_state_t state_default;
1329     if (!state) {
1330         VoutGetDisplayCfg(vout, &state_default.cfg, vout->p->display.title);
1331         state_default.wm_state = var_CreateGetBool(vout, "video-on-top") ? VOUT_WINDOW_STATE_ABOVE :
1332                                                                            VOUT_WINDOW_STATE_NORMAL;
1333         state_default.sar.num = 0;
1334         state_default.sar.den = 0;
1335
1336         state = &state_default;
1337     }
1338
1339     if (vout_OpenWrapper(vout, vout->p->splitter_name, state))
1340         return VLC_EGENERIC;
1341     if (vout_InitWrapper(vout))
1342         return VLC_EGENERIC;
1343     assert(vout->p->decoder_pool);
1344
1345     vout->p->displayed.current       = NULL;
1346     vout->p->displayed.next          = NULL;
1347     vout->p->displayed.decoded       = NULL;
1348     vout->p->displayed.date          = VLC_TS_INVALID;
1349     vout->p->displayed.timestamp     = VLC_TS_INVALID;
1350     vout->p->displayed.qtype         = QTYPE_NONE;
1351     vout->p->displayed.is_interlaced = false;
1352
1353     vout->p->step.last               = VLC_TS_INVALID;
1354     vout->p->step.timestamp          = VLC_TS_INVALID;
1355
1356     vout->p->spu_blend_chroma        = 0;
1357     vout->p->spu_blend               = NULL;
1358
1359     video_format_Print(VLC_OBJECT(vout), "original format", &vout->p->original);
1360     return VLC_SUCCESS;
1361 }
1362
1363 static void ThreadStop(vout_thread_t *vout, vout_display_state_t *state)
1364 {
1365     if (vout->p->spu_blend)
1366         filter_DeleteBlend(vout->p->spu_blend);
1367
1368     /* Destroy translation tables */
1369     if (vout->p->display.vd) {
1370         if (vout->p->decoder_pool) {
1371             ThreadFlush(vout, true, INT64_MAX);
1372             vout_EndWrapper(vout);
1373         }
1374         vout_CloseWrapper(vout, state);
1375     }
1376
1377     /* Destroy the video filters2 */
1378     filter_chain_Delete(vout->p->filter.chain_interactive);
1379     filter_chain_Delete(vout->p->filter.chain_static);
1380     video_format_Clean(&vout->p->filter.format);
1381     free(vout->p->filter.configuration);
1382
1383     if (vout->p->decoder_fifo)
1384         picture_fifo_Delete(vout->p->decoder_fifo);
1385     assert(!vout->p->decoder_pool);
1386 }
1387
1388 static void ThreadInit(vout_thread_t *vout)
1389 {
1390     vout->p->window.is_unused = true;
1391     vout->p->window.object    = NULL;
1392     vout->p->dead             = false;
1393     vout->p->is_late_dropped  = var_InheritBool(vout, "drop-late-frames");
1394     vout->p->pause.is_on      = false;
1395     vout->p->pause.date       = VLC_TS_INVALID;
1396
1397     vout_chrono_Init(&vout->p->render, 5, 10000); /* Arbitrary initial time */
1398 }
1399
1400 static void ThreadClean(vout_thread_t *vout)
1401 {
1402     if (vout->p->window.object) {
1403         assert(vout->p->window.is_unused);
1404         vout_window_Delete(vout->p->window.object);
1405     }
1406     vout_chrono_Clean(&vout->p->render);
1407     vout->p->dead = true;
1408     vout_control_Dead(&vout->p->control);
1409 }
1410
1411 static int ThreadReinit(vout_thread_t *vout,
1412                         const vout_configuration_t *cfg)
1413 {
1414     video_format_t original;
1415     if (VoutValidateFormat(&original, cfg->fmt)) {
1416         ThreadStop(vout, NULL);
1417         ThreadClean(vout);
1418         return VLC_EGENERIC;
1419     }
1420     /* We ignore crop/ar changes at this point, they are dynamically supported */
1421     VideoFormatCopyCropAr(&vout->p->original, &original);
1422     if (video_format_IsSimilar(&original, &vout->p->original)) {
1423         if (cfg->dpb_size <= vout->p->dpb_size)
1424             return VLC_SUCCESS;
1425         msg_Warn(vout, "DPB need to be increased");
1426     }
1427
1428     vout_display_state_t state;
1429     memset(&state, 0, sizeof(state));
1430
1431     ThreadStop(vout, &state);
1432
1433     if (!state.cfg.is_fullscreen) {
1434         state.cfg.display.width  = 0;
1435         state.cfg.display.height = 0;
1436     }
1437     state.sar.num = 0;
1438     state.sar.den = 0;
1439     /* FIXME current vout "variables" are not in sync here anymore
1440      * and I am not sure what to do */
1441
1442     vout->p->original = original;
1443     vout->p->dpb_size = cfg->dpb_size;
1444     if (ThreadStart(vout, &state)) {
1445         ThreadClean(vout);
1446         return VLC_EGENERIC;
1447     }
1448     return VLC_SUCCESS;
1449 }
1450
1451 /*****************************************************************************
1452  * Thread: video output thread
1453  *****************************************************************************
1454  * Video output thread. This function does only returns when the thread is
1455  * terminated. It handles the pictures arriving in the video heap and the
1456  * display device events.
1457  *****************************************************************************/
1458 static void *Thread(void *object)
1459 {
1460     vout_thread_t *vout = object;
1461
1462     vout_interlacing_support_t interlacing = {
1463         .is_interlaced = false,
1464         .date = mdate(),
1465     };
1466     vout_postprocessing_support_t postprocessing = {
1467         .qtype = QTYPE_NONE,
1468     };
1469
1470     mtime_t deadline = VLC_TS_INVALID;
1471     for (;;) {
1472         vout_control_cmd_t cmd;
1473
1474         /* FIXME remove thoses ugly timeouts
1475          */
1476         while (!vout_control_Pop(&vout->p->control, &cmd, deadline, 100000)) {
1477             switch(cmd.type) {
1478             case VOUT_CONTROL_INIT:
1479                 ThreadInit(vout);
1480                 if (ThreadStart(vout, NULL)) {
1481                     ThreadStop(vout, NULL);
1482                     ThreadClean(vout);
1483                     return NULL;
1484                 }
1485                 break;
1486             case VOUT_CONTROL_CLEAN:
1487                 ThreadStop(vout, NULL);
1488                 ThreadClean(vout);
1489                 return NULL;
1490             case VOUT_CONTROL_REINIT:
1491                 if (ThreadReinit(vout, cmd.u.cfg))
1492                     return NULL;
1493                 break;
1494             case VOUT_CONTROL_SUBPICTURE:
1495                 ThreadDisplaySubpicture(vout, cmd.u.subpicture);
1496                 cmd.u.subpicture = NULL;
1497                 break;
1498             case VOUT_CONTROL_FLUSH_SUBPICTURE:
1499                 ThreadFlushSubpicture(vout, cmd.u.integer);
1500                 break;
1501             case VOUT_CONTROL_OSD_TITLE:
1502                 ThreadDisplayOsdTitle(vout, cmd.u.string);
1503                 break;
1504             case VOUT_CONTROL_CHANGE_FILTERS:
1505                 ThreadChangeFilters(vout, NULL, cmd.u.string, false);
1506                 break;
1507             case VOUT_CONTROL_CHANGE_SUB_FILTERS:
1508                 ThreadChangeSubFilters(vout, cmd.u.string);
1509                 break;
1510             case VOUT_CONTROL_CHANGE_SUB_MARGIN:
1511                 ThreadChangeSubMargin(vout, cmd.u.integer);
1512                 break;
1513             case VOUT_CONTROL_PAUSE:
1514                 ThreadChangePause(vout, cmd.u.pause.is_on, cmd.u.pause.date);
1515                 break;
1516             case VOUT_CONTROL_FLUSH:
1517                 ThreadFlush(vout, false, cmd.u.time);
1518                 break;
1519             case VOUT_CONTROL_RESET:
1520                 ThreadReset(vout);
1521                 break;
1522             case VOUT_CONTROL_STEP:
1523                 ThreadStep(vout, cmd.u.time_ptr);
1524                 break;
1525             case VOUT_CONTROL_FULLSCREEN:
1526                 ThreadChangeFullscreen(vout, cmd.u.boolean);
1527                 break;
1528             case VOUT_CONTROL_ON_TOP:
1529                 ThreadChangeOnTop(vout, cmd.u.boolean);
1530                 break;
1531             case VOUT_CONTROL_DISPLAY_FILLED:
1532                 ThreadChangeDisplayFilled(vout, cmd.u.boolean);
1533                 break;
1534             case VOUT_CONTROL_ZOOM:
1535                 ThreadChangeZoom(vout, cmd.u.pair.a, cmd.u.pair.b);
1536                 break;
1537             case VOUT_CONTROL_ASPECT_RATIO:
1538                 ThreadChangeAspectRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1539                 break;
1540            case VOUT_CONTROL_CROP_RATIO:
1541                 ThreadExecuteCropRatio(vout, cmd.u.pair.a, cmd.u.pair.b);
1542                 break;
1543             case VOUT_CONTROL_CROP_WINDOW:
1544                 ThreadExecuteCropWindow(vout,
1545                                         cmd.u.window.x, cmd.u.window.y,
1546                                         cmd.u.window.width, cmd.u.window.height);
1547                 break;
1548             case VOUT_CONTROL_CROP_BORDER:
1549                 ThreadExecuteCropBorder(vout,
1550                                         cmd.u.border.left,  cmd.u.border.top,
1551                                         cmd.u.border.right, cmd.u.border.bottom);
1552                 break;
1553             default:
1554                 break;
1555             }
1556             vout_control_cmd_Clean(&cmd);
1557         }
1558
1559         ThreadManage(vout, &deadline, &interlacing, &postprocessing);
1560     }
1561 }
1562