video_output.c 51.6 KB
Newer Older
1
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
2
 * video_output.c : video output thread
3
 *
Michel Kaempf's avatar
Michel Kaempf committed
4 5
 * This module describes the programming interface for video output threads.
 * It includes functions allowing to open a new thread, send pictures to a
6 7
 * thread, and destroy a previously oppened video output thread.
 *****************************************************************************
8
 * Copyright (C) 2000-2007 the VideoLAN team
Gildas Bazin's avatar
Gildas Bazin committed
9
 * $Id$
10
 *
Sam Hocevar's avatar
 
Sam Hocevar committed
11
 * Authors: Vincent Seguin <seguin@via.ecp.fr>
12
 *          Gildas Bazin <gbazin@videolan.org>
13
 *          Laurent Aimar <fenrir _AT_ videolan _DOT_ org>
14 15 16 17 18
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
19
 *
20 21
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
22 23
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
24
 *
25 26
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
Antoine Cellerier's avatar
Antoine Cellerier committed
27
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
28
 *****************************************************************************/
Michel Kaempf's avatar
Michel Kaempf committed
29

30
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
31
 * Preamble
32
 *****************************************************************************/
33 34 35 36
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

37
#include <vlc_common.h>
38

39
#include <stdlib.h>                                                /* free() */
40
#include <string.h>
41
#include <assert.h>
Vincent Seguin's avatar
Vincent Seguin committed
42

Clément Stenac's avatar
Clément Stenac committed
43
#include <vlc_vout.h>
44

Clément Stenac's avatar
Clément Stenac committed
45
#include <vlc_filter.h>
46
#include <vlc_vout_osd.h>
47
#include <vlc_image.h>
Clément Stenac's avatar
Clément Stenac committed
48

49
#include <libvlc.h>
Laurent Aimar's avatar
Laurent Aimar committed
50
#include "vout_internal.h"
51 52
#include "interlacing.h"
#include "postprocessing.h"
53
#include "display.h"
54

55
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
56
 * Local prototypes
57
 *****************************************************************************/
58 59
static void *Thread(void *);
static void VoutDestructor(vlc_object_t *);
60

61 62 63 64
/* Maximum delay between 2 displayed pictures.
 * XXX it is needed for now but should be removed in the long term.
 */
#define VOUT_REDISPLAY_DELAY (INT64_C(80000))
65

66 67 68 69
/**
 * Late pictures having a delay higher than this value are thrashed.
 */
#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 76
/* */
static int VoutValidateFormat(video_format_t *dst,
                              const video_format_t *src)
77
{
78 79
    if (src->i_width <= 0  || src->i_width  > 8192 ||
        src->i_height <= 0 || src->i_height > 8192)
80 81 82
        return VLC_EGENERIC;
    if (src->i_sar_num <= 0 || src->i_sar_den <= 0)
        return VLC_EGENERIC;
83

84 85 86 87 88 89 90 91 92 93
    /* */
    video_format_Copy(dst, src);
    dst->i_chroma = vlc_fourcc_GetCodec(VIDEO_ES, src->i_chroma);
    vlc_ureduce( &dst->i_sar_num, &dst->i_sar_den,
                 src->i_sar_num,  src->i_sar_den, 50000 );
    if (dst->i_sar_num <= 0 || dst->i_sar_den <= 0) {
        dst->i_sar_num = 1;
        dst->i_sar_den = 1;
    }
    video_format_FixRgb(dst);
94
    return VLC_SUCCESS;
95
}
96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
static void VideoFormatCopyCropAr(video_format_t *dst,
                                  const video_format_t *src)
{
    video_format_CopyCrop(dst, src);
    dst->i_sar_num = src->i_sar_num;
    dst->i_sar_den = src->i_sar_den;
}
static bool VideoFormatIsCropArEqual(video_format_t *dst,
                                     const video_format_t *src)
{
    return dst->i_sar_num * src->i_sar_den == dst->i_sar_den * src->i_sar_num &&
           dst->i_x_offset       == src->i_x_offset &&
           dst->i_y_offset       == src->i_y_offset &&
           dst->i_visible_width  == src->i_visible_width &&
           dst->i_visible_height == src->i_visible_height;
}
112

113 114
static vout_thread_t *VoutCreate(vlc_object_t *object,
                                 const vout_configuration_t *cfg)
Michel Kaempf's avatar
Michel Kaempf committed
115
{
116
    video_format_t original;
117
    if (VoutValidateFormat(&original, cfg->fmt))
118 119
        return NULL;

120
    /* Allocate descriptor */
Laurent Aimar's avatar
Laurent Aimar committed
121 122 123 124
    vout_thread_t *vout = vlc_custom_create(object,
                                            sizeof(*vout) + sizeof(*vout->p),
                                            VLC_OBJECT_VOUT, "video output");
    if (!vout) {
125
        video_format_Clean(&original);
126 127 128
        return NULL;
    }

129
    /* */
Laurent Aimar's avatar
Laurent Aimar committed
130
    vout->p = (vout_thread_sys_t*)&vout[1];
131

Laurent Aimar's avatar
Laurent Aimar committed
132
    vout->p->original = original;
133
    vout->p->dpb_size = cfg->dpb_size;
134

Laurent Aimar's avatar
Laurent Aimar committed
135 136
    vout_control_Init(&vout->p->control);
    vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_INIT);
137

Laurent Aimar's avatar
Laurent Aimar committed
138
    vout_statistic_Init(&vout->p->statistic);
139

Laurent Aimar's avatar
Laurent Aimar committed
140
    vout_snapshot_Init(&vout->p->snapshot);
141

Gildas Bazin's avatar
 
Gildas Bazin committed
142
    /* Initialize locks */
Laurent Aimar's avatar
Laurent Aimar committed
143
    vlc_mutex_init(&vout->p->picture_lock);
144
    vlc_mutex_init(&vout->p->filter.lock);
145
    vlc_mutex_init(&vout->p->spu_lock);
Gildas Bazin's avatar
 
Gildas Bazin committed
146 147

    /* Attach the new object now so we can use var inheritance below */
Laurent Aimar's avatar
Laurent Aimar committed
148
    vlc_object_attach(vout, object);
Gildas Bazin's avatar
 
Gildas Bazin committed
149

150
    /* Initialize subpicture unit */
Laurent Aimar's avatar
Laurent Aimar committed
151
    vout->p->spu = spu_Create(vout);
152

153
    /* Take care of some "interface/control" related initialisations */
Laurent Aimar's avatar
Laurent Aimar committed
154
    vout_IntfInit(vout);
Gildas Bazin's avatar
 
Gildas Bazin committed
155

156 157 158 159
    vout->p->title.show     = var_GetBool(vout, "video-title-show");
    vout->p->title.timeout  = var_GetInteger(vout, "video-title-timeout");
    vout->p->title.position = var_GetInteger(vout, "video-title-position");

160
    /* Get splitter name if present */
161
    char *splitter_name = var_InheritString(vout, "video-splitter");
162
    if (splitter_name && *splitter_name) {
Laurent Aimar's avatar
Laurent Aimar committed
163
        vout->p->splitter_name = splitter_name;
164
    } else {
Laurent Aimar's avatar
Laurent Aimar committed
165
        free(splitter_name);
Sam Hocevar's avatar
 
Sam Hocevar committed
166 167
    }

Laurent Aimar's avatar
Laurent Aimar committed
168
    /* */
Laurent Aimar's avatar
Laurent Aimar committed
169
    vout_InitInterlacingSupport(vout, vout->p->displayed.is_interlaced);
Laurent Aimar's avatar
Laurent Aimar committed
170 171

    /* */
Laurent Aimar's avatar
Laurent Aimar committed
172
    vlc_object_set_destructor(vout, VoutDestructor);
Gildas Bazin's avatar
 
Gildas Bazin committed
173

174
    /* */
Laurent Aimar's avatar
Laurent Aimar committed
175 176
    if (vlc_clone(&vout->p->thread, Thread, vout,
                  VLC_THREAD_PRIORITY_OUTPUT)) {
Laurent Aimar's avatar
Laurent Aimar committed
177
        spu_Destroy(vout->p->spu);
Laurent Aimar's avatar
Laurent Aimar committed
178
        vlc_object_release(vout);
179 180 181
        return NULL;
    }

Laurent Aimar's avatar
Laurent Aimar committed
182
    vout_control_WaitEmpty(&vout->p->control);
183

Laurent Aimar's avatar
Laurent Aimar committed
184 185 186
    if (vout->p->dead) {
        msg_Err(vout, "video output creation failed");
        vout_CloseAndRelease(vout);
187
        return NULL;
188
    }
Michel Kaempf's avatar
Michel Kaempf committed
189

190 191
    vout->p->input = cfg->input;
    if (vout->p->input)
Laurent Aimar's avatar
Laurent Aimar committed
192
        spu_Attach(vout->p->spu, vout->p->input, true);
193

Laurent Aimar's avatar
Laurent Aimar committed
194
    return vout;
Michel Kaempf's avatar
Michel Kaempf committed
195 196
}

197 198 199 200
vout_thread_t *(vout_Request)(vlc_object_t *object,
                              const vout_configuration_t *cfg)
{
    vout_thread_t *vout = cfg->vout;
Laurent Aimar's avatar
Laurent Aimar committed
201
    if (cfg->change_fmt && !cfg->fmt) {
202 203 204 205 206 207 208
        if (vout)
            vout_CloseAndRelease(vout);
        return NULL;
    }

    /* If a vout is provided, try reusing it */
    if (vout) {
209 210
        if (vout->p->input != cfg->input) {
            if (vout->p->input)
Laurent Aimar's avatar
Laurent Aimar committed
211
                spu_Attach(vout->p->spu, vout->p->input, false);
212 213
            vout->p->input = cfg->input;
            if (vout->p->input)
Laurent Aimar's avatar
Laurent Aimar committed
214
                spu_Attach(vout->p->spu, vout->p->input, true);
215
        }
216

Laurent Aimar's avatar
Laurent Aimar committed
217 218 219 220 221 222 223 224
        if (cfg->change_fmt) {
            vout_control_cmd_t cmd;
            vout_control_cmd_Init(&cmd, VOUT_CONTROL_REINIT);
            cmd.u.cfg = cfg;

            vout_control_Push(&vout->p->control, &cmd);
            vout_control_WaitEmpty(&vout->p->control);
        }
225 226 227 228 229 230 231 232 233 234 235 236

        if (!vout->p->dead) {
            msg_Dbg(object, "reusing provided vout");
            return vout;
        }
        vout_CloseAndRelease(vout);

        msg_Warn(object, "cannot reuse provided vout");
    }
    return VoutCreate(object, cfg);
}

Laurent Aimar's avatar
Laurent Aimar committed
237
void vout_Close(vout_thread_t *vout)
238
{
Laurent Aimar's avatar
Laurent Aimar committed
239
    assert(vout);
240

241
    if (vout->p->input)
Laurent Aimar's avatar
Laurent Aimar committed
242
        spu_Attach(vout->p->spu, vout->p->input, false);
243

Laurent Aimar's avatar
Laurent Aimar committed
244
    vout_snapshot_End(&vout->p->snapshot);
245

Laurent Aimar's avatar
Laurent Aimar committed
246 247
    vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_CLEAN);
    vlc_join(vout->p->thread, NULL);
248

249
    vlc_mutex_lock(&vout->p->spu_lock);
Laurent Aimar's avatar
Laurent Aimar committed
250 251
    spu_Destroy(vout->p->spu);
    vout->p->spu = NULL;
252
    vlc_mutex_unlock(&vout->p->spu_lock);
253 254 255
}

/* */
Laurent Aimar's avatar
Laurent Aimar committed
256
static void VoutDestructor(vlc_object_t *object)
257
{
Laurent Aimar's avatar
Laurent Aimar committed
258
    vout_thread_t *vout = (vout_thread_t *)object;
259

260
    /* Make sure the vout was stopped first */
Laurent Aimar's avatar
Laurent Aimar committed
261
    //assert(!vout->p_module);
262

Laurent Aimar's avatar
Laurent Aimar committed
263
    free(vout->p->splitter_name);
264

265
    /* Destroy the locks */
266
    vlc_mutex_destroy(&vout->p->spu_lock);
Laurent Aimar's avatar
Laurent Aimar committed
267
    vlc_mutex_destroy(&vout->p->picture_lock);
268
    vlc_mutex_destroy(&vout->p->filter.lock);
Laurent Aimar's avatar
Laurent Aimar committed
269
    vout_control_Clean(&vout->p->control);
270

271
    /* */
Laurent Aimar's avatar
Laurent Aimar committed
272
    vout_statistic_Clean(&vout->p->statistic);
273

274
    /* */
Laurent Aimar's avatar
Laurent Aimar committed
275
    vout_snapshot_Clean(&vout->p->snapshot);
276

Laurent Aimar's avatar
Laurent Aimar committed
277
    video_format_Clean(&vout->p->original);
Michel Kaempf's avatar
Michel Kaempf committed
278 279
}

Laurent Aimar's avatar
Laurent Aimar committed
280
/* */
281
void vout_ChangePause(vout_thread_t *vout, bool is_paused, mtime_t date)
Laurent Aimar's avatar
Laurent Aimar committed
282
{
283 284 285 286 287
    vout_control_cmd_t cmd;
    vout_control_cmd_Init(&cmd, VOUT_CONTROL_PAUSE);
    cmd.u.pause.is_on = is_paused;
    cmd.u.pause.date  = date;
    vout_control_Push(&vout->p->control, &cmd);
Laurent Aimar's avatar
Laurent Aimar committed
288

289
    vout_control_WaitEmpty(&vout->p->control);
Laurent Aimar's avatar
Laurent Aimar committed
290
}
291

Laurent Aimar's avatar
Laurent Aimar committed
292
void vout_GetResetStatistic(vout_thread_t *vout, int *displayed, int *lost)
293
{
Laurent Aimar's avatar
Laurent Aimar committed
294
    vout_statistic_GetReset( &vout->p->statistic, displayed, lost );
295
}
296

297
void vout_Flush(vout_thread_t *vout, mtime_t date)
298
{
299 300
    vout_control_PushTime(&vout->p->control, VOUT_CONTROL_FLUSH, date);
    vout_control_WaitEmpty(&vout->p->control);
301
}
302

303
void vout_Reset(vout_thread_t *vout)
304
{
305 306
    vout_control_PushVoid(&vout->p->control, VOUT_CONTROL_RESET);
    vout_control_WaitEmpty(&vout->p->control);
307
}
308

309 310 311 312 313 314 315 316 317 318 319 320 321
bool vout_IsEmpty(vout_thread_t *vout)
{
    vlc_mutex_lock(&vout->p->picture_lock);

    picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
    if (picture)
        picture_Release(picture);

    vlc_mutex_unlock(&vout->p->picture_lock);

    return !picture;
}

322
void vout_FixLeaks( vout_thread_t *vout )
323 324 325 326 327 328
{
    vlc_mutex_lock(&vout->p->picture_lock);

    picture_t *picture = picture_fifo_Peek(vout->p->decoder_fifo);
    if (!picture) {
        picture = picture_pool_Get(vout->p->decoder_pool);
329
    }
330 331 332 333 334 335

    if (picture) {
        picture_Release(picture);
        /* Not all pictures has been displayed yet or some are
         * free */
        vlc_mutex_unlock(&vout->p->picture_lock);
336 337 338
        return;
    }

339 340 341
    /* There is no reason that no pictures are available, force one
     * from the pool, becarefull with it though */
    msg_Err(vout, "pictures leaked, trying to workaround");
342

343 344
    /* */
    picture_pool_NonEmpty(vout->p->decoder_pool, false);
Laurent Aimar's avatar
Laurent Aimar committed
345

346
    vlc_mutex_unlock(&vout->p->picture_lock);
347
}
348
void vout_NextPicture(vout_thread_t *vout, mtime_t *duration)
349
{
350 351 352
    vout_control_cmd_t cmd;
    vout_control_cmd_Init(&cmd, VOUT_CONTROL_STEP);
    cmd.u.time_ptr = duration;
353

354 355
    vout_control_Push(&vout->p->control, &cmd);
    vout_control_WaitEmpty(&vout->p->control);
356
}
357

358
void vout_DisplayTitle(vout_thread_t *vout, const char *title)
359
{
360 361
    assert(title);
    vout_control_PushString(&vout->p->control, VOUT_CONTROL_OSD_TITLE, title);
362
}
363

364 365
void vout_PutSubpicture( vout_thread_t *vout, subpicture_t *subpic )
{
366 367 368 369 370
    vout_control_cmd_t cmd;
    vout_control_cmd_Init(&cmd, VOUT_CONTROL_SUBPICTURE);
    cmd.u.subpicture = subpic;

    vout_control_Push(&vout->p->control, &cmd);
371 372 373
}
int vout_RegisterSubpictureChannel( vout_thread_t *vout )
{
374 375 376
    int channel = SPU_DEFAULT_CHANNEL;

    vlc_mutex_lock(&vout->p->spu_lock);
Laurent Aimar's avatar
Laurent Aimar committed
377 378
    if (vout->p->spu)
        channel = spu_RegisterChannel(vout->p->spu);
379 380 381
    vlc_mutex_unlock(&vout->p->spu_lock);

    return channel;
382 383 384
}
void vout_FlushSubpictureChannel( vout_thread_t *vout, int channel )
{
385 386
    vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_FLUSH_SUBPICTURE,
                             channel);
387 388
}

389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404
/**
 * It retreives a picture from the vout or NULL if no pictures are
 * available yet.
 *
 * You MUST call vout_PutPicture or vout_ReleasePicture on it.
 *
 * You may use vout_HoldPicture(paired with vout_ReleasePicture) to keep a
 * read-only reference.
 */
picture_t *vout_GetPicture(vout_thread_t *vout)
{
    /* Get lock */
    vlc_mutex_lock(&vout->p->picture_lock);
    picture_t *picture = picture_pool_Get(vout->p->decoder_pool);
    if (picture) {
        picture_Reset(picture);
405
        VideoFormatCopyCropAr(&picture->format, &vout->p->original);
406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458
    }
    vlc_mutex_unlock(&vout->p->picture_lock);

    return picture;
}

/**
 * It gives to the vout a picture to be displayed.
 *
 * The given picture MUST comes from vout_GetPicture.
 *
 * Becareful, after vout_PutPicture is called, picture_t::p_next cannot be
 * read/used.
 */
void vout_PutPicture(vout_thread_t *vout, picture_t *picture)
{
    vlc_mutex_lock(&vout->p->picture_lock);

    picture->p_next = NULL;
    picture_fifo_Push(vout->p->decoder_fifo, picture);

    vlc_mutex_unlock(&vout->p->picture_lock);

    vout_control_Wake(&vout->p->control);
}

/**
 * It releases a picture retreived by vout_GetPicture.
 */
void vout_ReleasePicture(vout_thread_t *vout, picture_t *picture)
{
    vlc_mutex_lock(&vout->p->picture_lock);

    picture_Release(picture);

    vlc_mutex_unlock(&vout->p->picture_lock);

    vout_control_Wake(&vout->p->control);
}

/**
 * It increment the reference counter of a picture retreived by
 * vout_GetPicture.
 */
void vout_HoldPicture(vout_thread_t *vout, picture_t *picture)
{
    vlc_mutex_lock(&vout->p->picture_lock);

    picture_Hold(picture);

    vlc_mutex_unlock(&vout->p->picture_lock);
}

459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492
/* */
int vout_GetSnapshot(vout_thread_t *vout,
                     block_t **image_dst, picture_t **picture_dst,
                     video_format_t *fmt,
                     const char *type, mtime_t timeout)
{
    picture_t *picture = vout_snapshot_Get(&vout->p->snapshot, timeout);
    if (!picture) {
        msg_Err(vout, "Failed to grab a snapshot");
        return VLC_EGENERIC;
    }

    if (image_dst) {
        vlc_fourcc_t codec = VLC_CODEC_PNG;
        if (type && image_Type2Fourcc(type))
            codec = image_Type2Fourcc(type);

        const int override_width  = var_GetInteger(vout, "snapshot-width");
        const int override_height = var_GetInteger(vout, "snapshot-height");

        if (picture_Export(VLC_OBJECT(vout), image_dst, fmt,
                           picture, codec, override_width, override_height)) {
            msg_Err(vout, "Failed to convert image for snapshot");
            picture_Release(picture);
            return VLC_EGENERIC;
        }
    }
    if (picture_dst)
        *picture_dst = picture;
    else
        picture_Release(picture);
    return VLC_SUCCESS;
}

493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513
/* vout_Control* are usable by anyone at anytime */
void vout_ControlChangeFullscreen(vout_thread_t *vout, bool fullscreen)
{
    vout_control_PushBool(&vout->p->control, VOUT_CONTROL_FULLSCREEN,
                          fullscreen);
}
void vout_ControlChangeOnTop(vout_thread_t *vout, bool is_on_top)
{
    vout_control_PushBool(&vout->p->control, VOUT_CONTROL_ON_TOP,
                          is_on_top);
}
void vout_ControlChangeDisplayFilled(vout_thread_t *vout, bool is_filled)
{
    vout_control_PushBool(&vout->p->control, VOUT_CONTROL_DISPLAY_FILLED,
                          is_filled);
}
void vout_ControlChangeZoom(vout_thread_t *vout, int num, int den)
{
    vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ZOOM,
                          num, den);
}
514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530
void vout_ControlChangeSampleAspectRatio(vout_thread_t *vout,
                                         unsigned num, unsigned den)
{
    vout_control_PushPair(&vout->p->control, VOUT_CONTROL_ASPECT_RATIO,
                          num, den);
}
void vout_ControlChangeCropRatio(vout_thread_t *vout,
                                 unsigned num, unsigned den)
{
    vout_control_PushPair(&vout->p->control, VOUT_CONTROL_CROP_RATIO,
                          num, den);
}
void vout_ControlChangeCropWindow(vout_thread_t *vout,
                                  int x, int y, int width, int height)
{
    vout_control_cmd_t cmd;
    vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_WINDOW);
531 532 533 534
    cmd.u.window.x      = __MAX(x, 0);
    cmd.u.window.y      = __MAX(y, 0);
    cmd.u.window.width  = __MAX(width, 0);
    cmd.u.window.height = __MAX(height, 0);
535 536 537 538 539 540 541 542

    vout_control_Push(&vout->p->control, &cmd);
}
void vout_ControlChangeCropBorder(vout_thread_t *vout,
                                  int left, int top, int right, int bottom)
{
    vout_control_cmd_t cmd;
    vout_control_cmd_Init(&cmd, VOUT_CONTROL_CROP_BORDER);
543 544 545 546
    cmd.u.border.left   = __MAX(left, 0);
    cmd.u.border.top    = __MAX(top, 0);
    cmd.u.border.right  = __MAX(right, 0);
    cmd.u.border.bottom = __MAX(bottom, 0);
547 548 549

    vout_control_Push(&vout->p->control, &cmd);
}
550 551 552 553 554
void vout_ControlChangeFilters(vout_thread_t *vout, const char *filters)
{
    vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_FILTERS,
                            filters);
}
555
void vout_ControlChangeSubSources(vout_thread_t *vout, const char *filters)
556
{
557
    vout_control_PushString(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_SOURCES,
558 559
                            filters);
}
Laurent Aimar's avatar
Laurent Aimar committed
560 561 562 563 564
void vout_ControlChangeSubMargin(vout_thread_t *vout, int margin)
{
    vout_control_PushInteger(&vout->p->control, VOUT_CONTROL_CHANGE_SUB_MARGIN,
                             margin);
}
565

566 567 568 569 570 571 572 573 574 575 576
/* */
static void VoutGetDisplayCfg(vout_thread_t *vout, vout_display_cfg_t *cfg, const char *title)
{
    /* Load configuration */
    cfg->is_fullscreen = var_CreateGetBool(vout, "fullscreen");
    cfg->display.title = title;
    const int display_width = var_CreateGetInteger(vout, "width");
    const int display_height = var_CreateGetInteger(vout, "height");
    cfg->display.width   = display_width > 0  ? display_width  : 0;
    cfg->display.height  = display_height > 0 ? display_height : 0;
    cfg->is_display_filled  = var_CreateGetBool(vout, "autoscale");
577 578 579 580 581 582 583 584
    unsigned msar_num, msar_den;
    if (var_InheritURational(vout, &msar_num, &msar_den, "monitor-par") ||
        msar_num <= 0 || msar_den <= 0) {
        msar_num = 1;
        msar_den = 1;
    }
    cfg->display.sar.num = msar_num;
    cfg->display.sar.den = msar_den;
585 586 587 588 589 590 591 592 593 594 595 596 597
    unsigned zoom_den = 1000;
    unsigned zoom_num = zoom_den * var_CreateGetFloat(vout, "scale");
    vlc_ureduce(&zoom_num, &zoom_den, zoom_num, zoom_den, 0);
    cfg->zoom.num = zoom_num;
    cfg->zoom.den = zoom_den;
    cfg->align.vertical = VOUT_DISPLAY_ALIGN_CENTER;
    cfg->align.horizontal = VOUT_DISPLAY_ALIGN_CENTER;
    const int align_mask = var_CreateGetInteger(vout, "align");
    if (align_mask & 0x1)
        cfg->align.horizontal = VOUT_DISPLAY_ALIGN_LEFT;
    else if (align_mask & 0x2)
        cfg->align.horizontal = VOUT_DISPLAY_ALIGN_RIGHT;
    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;
601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632
}

vout_window_t * vout_NewDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
                                      const vout_window_cfg_t *cfg)
{
    VLC_UNUSED(vd);
    vout_window_cfg_t cfg_override = *cfg;

    if (!var_InheritBool( vout, "embedded-video"))
        cfg_override.is_standalone = true;

    if (vout->p->window.is_unused && vout->p->window.object) {
        assert(!vout->p->splitter_name);
        if (!cfg_override.is_standalone == !vout->p->window.cfg.is_standalone &&
            cfg_override.type           == vout->p->window.cfg.type) {
            /* Reuse the stored window */
            msg_Dbg(vout, "Reusing previous vout window");
            vout_window_t *window = vout->p->window.object;
            if (cfg_override.width  != vout->p->window.cfg.width ||
                cfg_override.height != vout->p->window.cfg.height)
                vout_window_SetSize(window,
                                    cfg_override.width, cfg_override.height);
            vout->p->window.is_unused = false;
            vout->p->window.cfg       = cfg_override;
            return window;
        }

        vout_window_Delete(vout->p->window.object);
        vout->p->window.is_unused = true;
        vout->p->window.object    = NULL;
    }

633
    vout_window_t *window = vout_window_New(VLC_OBJECT(vout), "$window",
634 635 636 637 638 639 640 641 642 643 644 645 646 647 648
                                            &cfg_override);
    if (!window)
        return NULL;
    if (!vout->p->splitter_name) {
        vout->p->window.is_unused = false;
        vout->p->window.cfg       = cfg_override;
        vout->p->window.object    = window;
    }
    return window;
}

void vout_DeleteDisplayWindow(vout_thread_t *vout, vout_display_t *vd,
                              vout_window_t *window)
{
    VLC_UNUSED(vd);
649
    if (!vout->p->window.is_unused && vout->p->window.object == window) {
650
        vout->p->window.is_unused = true;
651 652 653 654 655
    } else if (vout->p->window.is_unused && vout->p->window.object && !window) {
        vout_window_Delete(vout->p->window.object);
        vout->p->window.is_unused = true;
        vout->p->window.object    = NULL;
    } 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);
666 667
    if (picture) {
        picture_Reset(picture);
668
        VideoFormatCopyCropAr(&picture->format, &filter->fmt_out.video);
669
    }
670
    return picture;
671
}
672 673 674 675 676 677 678
static picture_t *VoutVideoFilterStaticNewPicture(filter_t *filter)
{
    vout_thread_t *vout = (vout_thread_t*)filter->p_owner;

    vlc_assert_locked(&vout->p->filter.lock);
    if (filter_chain_GetLength(vout->p->filter.chain_interactive) == 0)
        return VoutVideoFilterInteractiveNewPicture(filter);
679

680 681
    return picture_NewFromFormat(&filter->fmt_out.video);
}
682 683 684 685 686
static void VoutVideoFilterDelPicture(filter_t *filter, picture_t *picture)
{
    VLC_UNUSED(filter);
    picture_Release(picture);
}
687
static int VoutVideoFilterStaticAllocationSetup(filter_t *filter, void *data)
688
{
689 690 691 692 693 694 695 696
    filter->pf_video_buffer_new = VoutVideoFilterStaticNewPicture;
    filter->pf_video_buffer_del = VoutVideoFilterDelPicture;
    filter->p_owner             = data; /* vout */
    return VLC_SUCCESS;
}
static int VoutVideoFilterInteractiveAllocationSetup(filter_t *filter, void *data)
{
    filter->pf_video_buffer_new = VoutVideoFilterInteractiveNewPicture;
697 698 699 700
    filter->pf_video_buffer_del = VoutVideoFilterDelPicture;
    filter->p_owner             = data; /* vout */
    return VLC_SUCCESS;
}
701
static void ThreadFilterFlush(vout_thread_t *vout, bool is_locked)
Laurent Aimar's avatar
Laurent Aimar committed
702 703 704 705 706 707 708 709 710
{
    if (vout->p->displayed.current)
        picture_Release( vout->p->displayed.current );
    vout->p->displayed.current = NULL;

    if (vout->p->displayed.next)
        picture_Release( vout->p->displayed.next );
    vout->p->displayed.next = NULL;

711 712
    if (!is_locked)
        vlc_mutex_lock(&vout->p->filter.lock);
Laurent Aimar's avatar
Laurent Aimar committed
713 714
    filter_chain_VideoFlush(vout->p->filter.chain_static);
    filter_chain_VideoFlush(vout->p->filter.chain_interactive);
715 716
    if (!is_locked)
        vlc_mutex_unlock(&vout->p->filter.lock);
Laurent Aimar's avatar
Laurent Aimar committed
717 718 719 720 721 722 723
}

typedef struct {
    char           *name;
    config_chain_t *cfg;
} vout_filter_t;

724 725 726 727
static void ThreadChangeFilters(vout_thread_t *vout,
                                const video_format_t *source,
                                const char *filters,
                                bool is_locked)
Laurent Aimar's avatar
Laurent Aimar committed
728
{
729
    ThreadFilterFlush(vout, is_locked);
Laurent Aimar's avatar
Laurent Aimar committed
730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760

    vlc_array_t array_static;
    vlc_array_t array_interactive;

    vlc_array_init(&array_static);
    vlc_array_init(&array_interactive);
    char *current = filters ? strdup(filters) : NULL;
    while (current) {
        config_chain_t *cfg;
        char *name;
        char *next = config_ChainCreate(&name, &cfg, current);

        if (name && *name) {
            vout_filter_t *e = xmalloc(sizeof(*e));
            e->name = name;
            e->cfg  = cfg;
            if (!strcmp(e->name, "deinterlace") ||
                !strcmp(e->name, "postproc")) {
                vlc_array_append(&array_static, e);
            } else {
                vlc_array_append(&array_interactive, e);
            }
        } else {
            if (cfg)
                config_ChainDestroy(cfg);
            free(name);
        }
        free(current);
        current = next;
    }

761 762 763
    if (!is_locked)
        vlc_mutex_lock(&vout->p->filter.lock);

Laurent Aimar's avatar
Laurent Aimar committed
764
    es_format_t fmt_target;
765
    es_format_InitFromVideo(&fmt_target, source ? source : &vout->p->filter.format);
Laurent Aimar's avatar
Laurent Aimar committed
766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788

    es_format_t fmt_current = fmt_target;

    for (int a = 0; a < 2; a++) {
        vlc_array_t    *array = a == 0 ? &array_static :
                                         &array_interactive;
        filter_chain_t *chain = a == 0 ? vout->p->filter.chain_static :
                                         vout->p->filter.chain_interactive;

        filter_chain_Reset(chain, &fmt_current, &fmt_current);
        for (int i = 0; i < vlc_array_count(array); i++) {
            vout_filter_t *e = vlc_array_item_at_index(array, i);
            msg_Dbg(vout, "Adding '%s' as %s", e->name, a == 0 ? "static" : "interactive");
            if (!filter_chain_AppendFilter(chain, e->name, e->cfg, NULL, NULL)) {
                msg_Err(vout, "Failed to add filter '%s'", e->name);
                config_ChainDestroy(e->cfg);
            }
            free(e->name);
            free(e);
        }
        fmt_current = *filter_chain_GetFmtOut(chain);
        vlc_array_clear(array);
    }
789
    VideoFormatCopyCropAr(&fmt_target.video, &fmt_current.video);
Laurent Aimar's avatar
Laurent Aimar committed
790 791 792 793 794 795 796 797 798 799
    if (!es_format_IsSimilar(&fmt_current, &fmt_target)) {
        msg_Dbg(vout, "Adding a filter to compensate for format changes");
        if (!filter_chain_AppendFilter(vout->p->filter.chain_interactive, NULL, NULL,
                                       &fmt_current, &fmt_target)) {
            msg_Err(vout, "Failed to compensate for the format changes, removing all filters");
            filter_chain_Reset(vout->p->filter.chain_static,      &fmt_target, &fmt_target);
            filter_chain_Reset(vout->p->filter.chain_interactive, &fmt_target, &fmt_target);
        }
    }

800 801 802 803 804 805 806 807 808 809 810
    if (vout->p->filter.configuration != filters) {
        free(vout->p->filter.configuration);
        vout->p->filter.configuration = filters ? strdup(filters) : NULL;
    }
    if (source) {
        video_format_Clean(&vout->p->filter.format);
        video_format_Copy(&vout->p->filter.format, source);
    }

    if (!is_locked)
        vlc_mutex_unlock(&vout->p->filter.lock);
Laurent Aimar's avatar
Laurent Aimar committed
811 812
}

813

814
/* */
815
static int ThreadDisplayPreparePicture(vout_thread_t *vout, bool reuse, bool is_late_dropped)
Vincent Seguin's avatar
Vincent Seguin committed
816
{
817
    int lost_count = 0;
818

819
    vlc_mutex_lock(&vout->p->filter.lock);
820

821 822
    picture_t *picture = filter_chain_VideoFilter(vout->p->filter.chain_static, NULL);
    assert(!reuse || !picture);
823

824 825 826 827
    while (!picture) {
        picture_t *decoded;
        if (reuse && vout->p->displayed.decoded) {
            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) {
831 832
                const mtime_t predicted = mdate() + 0; /* TODO improve */
                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);
836 837 838 839
                    lost_count++;
                    continue;
                } else if (late > 0) {
                    msg_Dbg(vout, "picture might be displayed late (missing %d ms)", (int)(late/1000));
840 841
                }
            }
842 843 844
            if (decoded &&
                !VideoFormatIsCropArEqual(&decoded->format, &vout->p->filter.format))
                ThreadChangeFilters(vout, &decoded->format, vout->p->filter.configuration, true);
845
        }
846 847 848
        if (!decoded)
            break;
        reuse = false;
849

850 851 852 853 854
        if (vout->p->displayed.decoded)
            picture_Release(vout->p->displayed.decoded);

        vout->p->displayed.decoded       = picture_Hold(decoded);
        vout->p->displayed.timestamp     = decoded->date;
855 856
        vout->p->displayed.is_interlaced = !decoded->b_progressive;
        vout->p->displayed.qtype         = decoded->i_qtype;
857 858

        picture = filter_chain_VideoFilter(vout->p->filter.chain_static, decoded);
859 860
    }

861 862 863 864 865
    vlc_mutex_unlock(&vout->p->filter.lock);

    vout_statistic_Update(&vout->p->statistic, 0, lost_count);
    if (!picture)
        return VLC_EGENERIC;
866

867 868 869 870 871 872
    assert(!vout->p->displayed.next);
    if (!vout->p->displayed.current)
        vout->p->displayed.current = picture;
    else
        vout->p->displayed.next    = picture;
    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;
878 879
    vout_display_t *vd = vout->p->display.vd;

880
    picture_t *torender = picture_Hold(vout->p->displayed.current);
881

882
    vout_chrono_Start(&vout->p->render);
883

884 885 886 887 888 889 890 891 892 893 894
    vlc_mutex_lock(&vout->p->filter.lock);
    picture_t *filtered = filter_chain_VideoFilter(vout->p->filter.chain_interactive, torender);
    vlc_mutex_unlock(&vout->p->filter.lock);

    if (!filtered)
        return VLC_EGENERIC;

    if (filtered->date != vout->p->displayed.current->date)
        msg_Warn(vout, "Unsupported timestamp modifications done by chain_interactive");

    /*
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
902 903 904
        render_subtitle_date = filtered->date > 1 ? filtered->date : mdate();
    mtime_t render_osd_date = mdate(); /* FIXME wrong */

905 906 907 908 909 910
    /*
     * Get the subpicture to be displayed
     */
    const bool do_dr_spu = !do_snapshot &&
                           vd->info.subpicture_chromas &&
                           *vd->info.subpicture_chromas != 0;
911 912 913 914 915 916 917
    const bool do_early_spu = !do_dr_spu &&
                              (vd->info.is_slow ||
                               sys->display.use_dr ||
                               do_snapshot ||
                               !vout_IsDisplayFiltered(vd) ||
                               vd->fmt.i_width * vd->fmt.i_height <= vd->source.i_width * vd->source.i_height);

918 919 920
    const vlc_fourcc_t *subpicture_chromas;
    video_format_t fmt_spu;
    if (do_dr_spu) {
921 922 923 924 925 926 927 928 929 930 931 932
        vout_display_place_t place;
        vout_display_PlacePicture(&place, &vd->source, vd->cfg, false);

        fmt_spu = vd->source;
        if (fmt_spu.i_width * fmt_spu.i_height < place.width * place.height) {
            fmt_spu.i_sar_num = vd->cfg->display.sar.num;
            fmt_spu.i_sar_den = vd->cfg->display.sar.den;
            fmt_spu.i_width          =
            fmt_spu.i_visible_width  = place.width;
            fmt_spu.i_height         =
            fmt_spu.i_visible_height = place.height;
        }
933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960
        subpicture_chromas = vd->info.subpicture_chromas;
    } else {
        if (do_early_spu) {
            fmt_spu = vd->source;
        } else {
            fmt_spu = vd->fmt;
            fmt_spu.i_sar_num = vd->cfg->display.sar.num;
            fmt_spu.i_sar_den = vd->cfg->display.sar.den;
        }
        subpicture_chromas = NULL;

        if (vout->p->spu_blend &&
            vout->p->spu_blend->fmt_out.video.i_chroma != fmt_spu.i_chroma) {
            filter_DeleteBlend(vout->p->spu_blend);
            vout->p->spu_blend = NULL;
            vout->p->spu_blend_chroma = 0;
        }
        if (!vout->p->spu_blend && vout->p->spu_blend_chroma != fmt_spu.i_chroma) {
            vout->p->spu_blend_chroma = fmt_spu.i_chroma;
            vout->p->spu_blend = filter_NewBlend(VLC_OBJECT(vout), &fmt_spu);
            if (!vout->p->spu_blend)
                msg_Err(vout, "Failed to create blending filter, OSD/Subtitles will not work");
        }
    }

    subpicture_t *subpic = spu_Render(vout->p->spu,
                                      subpicture_chromas, &fmt_spu,
                                      &vd->source,
961 962
                                      render_subtitle_date, render_osd_date,
                                      do_snapshot);
963 964 965 966 967 968 969
    /*
     * Perform rendering
     *
     * We have to:
     * - be sure to end up with a direct buffer.
     * - blend subtitles, and in a fast access buffer
     */
970 971 972
    bool is_direct = vout->p->decoder_pool == vout->p->display_pool;
    picture_t *todisplay = filtered;
    if (do_early_spu && subpic) {
973
        todisplay = picture_pool_Get(vout->p->private_pool);
974 975 976
        if (todisplay) {
            VideoFormatCopyCropAr(&todisplay->format, &filtered->format);
            picture_Copy(todisplay, filtered);
977 978
            if (vout->p->spu_blend)
                picture_BlendSubpicture(todisplay, vout->p->spu_blend, subpic);
Sam Hocevar's avatar
 
Sam Hocevar committed
979
        }
980
        picture_Release(filtered);
981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997
        subpicture_Delete(subpic);
        subpic = NULL;

        if (!todisplay)
            return VLC_EGENERIC;
    }

    picture_t *direct;
    if (!is_direct && todisplay) {
        direct = picture_pool_Get(vout->p->display_pool);
        if (direct) {
            VideoFormatCopyCropAr(&direct->format, &todisplay->format);
            picture_Copy(direct, todisplay);
        }
        picture_Release(todisplay);
    } else {
        direct = todisplay;
998
    }
Sam Hocevar's avatar
 
Sam Hocevar committed
999

1000 1001 1002
    if (!direct) {
        if (subpic)
            subpicture_Delete(subpic);
1003
        return VLC_EGENERIC;
1004
    }
1005

1006 1007 1008 1009 1010
    /*
     * Take a snapshot if requested
     */
    if (do_snapshot)
        vout_snapshot_Set(&vout->p->snapshot, &vd->source, direct);
Sam Hocevar's avatar
 
Sam Hocevar committed
1011

1012 1013 1014 1015
    /* Render the direct buffer */
    assert(vout_IsDisplayFiltered(vd) == !sys->display.use_dr);
    vout_UpdateDisplaySourceProperties(vd, &direct->format);
    if (sys->display.use_dr) {
1016
        vout_display_Prepare(vd, direct, subpic);
1017 1018
    } else {
        sys->display.filtered = vout_FilterDisplay(vd, direct);
1019 1020 1021 1022 1023 1024 1025
        if (sys->display.filtered) {
            if (!do_dr_spu && !do_early_spu && vout->p->spu_blend && subpic)
                picture_BlendSubpicture(sys->display.filtered, vout->p->spu_blend, subpic);
            vout_display_Prepare(vd, sys->display.filtered, do_dr_spu ? subpic : NULL);
        }
        if (!do_dr_spu && subpic)
            subpicture_Delete(subpic);
1026 1027
        if (!sys->display.filtered)
            return VLC_EGENERIC;
1028
    }
1029 1030

    vout_chrono_Stop(&vout->p->render);
1031
#if 0
1032 1033 1034 1035 1036
        {
        static int i = 0;
        if (((i++)%10) == 0)
            msg_Info(vout, "render: avg %d ms var %d ms",
                     (int)(vout->p->render.avg/1000), (int)(vout->p->render.var/1000));
1037
        }
1038 1039 1040 1041 1042 1043 1044 1045 1046 1047
#endif

    /* Wait the real date (for rendering jitter) */
#if 0
    mtime_t delay = direct->date - mdate();
    if (delay < 1000)
        msg_Warn(vout, "picture is late (%lld ms)", delay / 1000);
#endif
    if (!is_forced)
        mwait(direct->date);
1048

1049 1050
    /* Display the direct buffer returned by vout_RenderPicture */
    vout->p->displayed.date = mdate();
1051 1052 1053
    vout_display_Display(vd,
                         sys->display.filtered ? sys->display.filtered
                                                : direct,
1054
                         subpic);
1055
    sys->display.filtered = NULL;
1056 1057 1058 1059 1060

    vout_statistic_Update(&vout->p->statistic, 1, 0);

    return VLC_SUCCESS;
}
Vincent Seguin's avatar
Vincent Seguin committed
1061

1062 1063 1064
static int ThreadDisplayPicture(vout_thread_t *vout,
                                bool now, mtime_t *deadline)
{
1065
    bool is_late_dropped = vout->p->is_late_dropped && !vout->p->pause.is_on && !now;
1066
    bool first = !vout->p->displayed.current;
1067
    if (first && ThreadDisplayPreparePicture(vout, true, is_late_dropped)) /* FIXME not sure it is ok */
1068 1069 1070
        return VLC_EGENERIC;
    if (!vout->p->pause.is_on || now) {
        while (!vout->p->displayed.next) {
1071
            if (ThreadDisplayPreparePicture(vout, false, is_late_dropped)) {
1072
                break;
1073
            }
1074
        }
1075
    }
Vincent Seguin's avatar
Vincent Seguin committed
1076

1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111
    const mtime_t date = mdate();
    const mtime_t render_delay = vout_chrono_GetHigh(&vout->p->render) + VOUT_MWAIT_TOLERANCE;

    mtime_t date_next = VLC_TS_INVALID;
    if (!vout->p->pause.is_on && vout->p->displayed.next)
        date_next = vout->p->displayed.next->date - render_delay;

    /* FIXME/XXX we must redisplay the last decoded picture (because
     * of potential vout updated, or filters update or SPU update)
     * For now a high update period is needed but it coulmd be removed
     * if and only if:
     * - vout module emits events from theselves.
     * - *and* SPU is modified to emit an event or a deadline when needed.
     *
     * So it will be done latter.
     */
    mtime_t date_refresh = VLC_TS_INVALID;
    if (vout->p->displayed.date > VLC_TS_INVALID)
        date_refresh = vout->p->displayed.date + VOUT_REDISPLAY_DELAY - render_delay;

    bool drop = now;
    if (date_next != VLC_TS_INVALID)
        drop |= date_next + 0 <= date;

    bool refresh = false;
    if (date_refresh > VLC_TS_INVALID)
        refresh = date_refresh <= date;

    if (!first && !refresh && !drop) {
        if (date_next != VLC_TS_INVALID && date_refresh != VLC_TS_INVALID)
            *deadline = __MIN(date_next, date_refresh);
        else if (date_next != VLC_TS_INVALID)
            *deadline = date_next;
        else if (date_refresh != VLC_TS_INVALID)
            *deadline = date_refresh;
1112
        return VLC_EGENERIC;
1113 1114 1115 1116 1117 1118 1119
    }

    if (drop) {
        picture_Release(vout->p->displayed.current);
        vout->p->displayed.current = vout->p->displayed.next;
        vout->p->displayed.next    = NULL;
    }
1120 1121
    if (!vout->p->displayed.current)
        return VLC_EGENERIC;
1122 1123 1124

    bool is_forced = now || (!drop && refresh) || vout->p->displayed.current->b_force;
    return ThreadDisplayRenderPicture(vout, is_forced);
1125
}
1126

1127 1128 1129 1130
static void ThreadManage(vout_thread_t *vout,
                         mtime_t *deadline,
                         vout_interlacing_support_t *interlacing,
                         vout_postprocessing_support_t *postprocessing)
1131 1132 1133 1134
{
    vlc_mutex_lock(&vout->p->picture_lock);

    *deadline = VLC_TS_INVALID;
1135 1136 1137 1138
    for (;;) {
        if (ThreadDisplayPicture(vout, false, deadline))
            break;
    }
1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150

    const int  picture_qtype      = vout->p->displayed.qtype;
    const bool picture_interlaced = vout->p->displayed.is_interlaced;

    vlc_mutex_unlock(&vout->p->picture_lock);

    /* Post processing */
    vout_SetPostProcessingState(vout, postprocessing, picture_qtype);

    /* Deinterlacing */
    vout_SetInterlacingState(vout, interlacing, picture_interlaced);

1151
    vout_ManageWrapper(vout);
1152 1153
}

1154 1155 1156
static void ThreadDisplaySubpicture(vout_thread_t *vout,
                                    subpicture_t *subpicture)
{
1157
    spu_PutSubpicture(vout->p->spu, subpicture);
1158
}
1159 1160 1161

static void ThreadFlushSubpicture(vout_thread_t *vout, int channel)
{
Laurent Aimar's avatar
Laurent Aimar committed
1162
    spu_ClearChannel(vout->p->spu, channel);
1163 1164
}

1165
static void ThreadDisplayOsdTitle(vout_thread_t *vout, const char *string)
1166
{
1167
    if (!vout->p->title.show)
1168 1169
        return;