video_output.c 55.1 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 14 15 16 17
 *
 * 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.
Sam Hocevar's avatar
Sam Hocevar committed
18
 *
19 20
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 22
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
23
 *
24 25
 * 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
26
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
27
 *****************************************************************************/
Michel Kaempf's avatar
Michel Kaempf committed
28

29
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
30
 * Preamble
31
 *****************************************************************************/
32 33 34 35
#ifdef HAVE_CONFIG_H
# include "config.h"
#endif

36
#include <vlc_common.h>
37

38
#include <stdlib.h>                                                /* free() */
39
#include <string.h>
Vincent Seguin's avatar
Vincent Seguin committed
40

Sam Hocevar's avatar
 
Sam Hocevar committed
41

42 43
#ifdef HAVE_SYS_TIMES_H
#   include <sys/times.h>
44
#endif
45

Clément Stenac's avatar
Clément Stenac committed
46
#include <vlc_vout.h>
47

Clément Stenac's avatar
Clément Stenac committed
48 49
#include <vlc_filter.h>
#include <vlc_osd.h>
50

51
#if defined( __APPLE__ )
Clément Stenac's avatar
Clément Stenac committed
52
/* Include darwin_specific.h here if needed */
53 54
#endif

Clément Stenac's avatar
Clément Stenac committed
55 56 57 58
/** FIXME This is quite ugly but needed while we don't have counters
 * helpers */
#include "input/input_internal.h"

59
#include "modules/modules.h"
60
#include <assert.h>
61

62
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
63
 * Local prototypes
64
 *****************************************************************************/
65
static int      InitThread        ( vout_thread_t * );
66
static void*    RunThread         ( vlc_object_t *  );
67
static void     ErrorThread       ( vout_thread_t * );
Laurent Aimar's avatar
Laurent Aimar committed
68
static void     CleanThread       ( vout_thread_t * );
69
static void     EndThread         ( vout_thread_t * );
Sam Hocevar's avatar
 
Sam Hocevar committed
70

71
static void     AspectRatio       ( int, int *, int * );
72 73
static int      BinaryLog         ( uint32_t );
static void     MaskToShift       ( int *, int *, uint32_t );
Michel Kaempf's avatar
Michel Kaempf committed
74

75 76
static void     vout_Destructor   ( vlc_object_t * p_this );

Gildas Bazin's avatar
 
Gildas Bazin committed
77
/* Object variables callbacks */
Gildas Bazin's avatar
 
Gildas Bazin committed
78 79
static int DeinterlaceCallback( vlc_object_t *, char const *,
                                vlc_value_t, vlc_value_t, void * );
80 81
static int FilterCallback( vlc_object_t *, char const *,
                           vlc_value_t, vlc_value_t, void * );
82 83
static int VideoFilter2Callback( vlc_object_t *, char const *,
                                 vlc_value_t, vlc_value_t, void * );
Gildas Bazin's avatar
 
Gildas Bazin committed
84

85 86 87
/* From vout_intf.c */
int vout_Snapshot( vout_thread_t *, picture_t * );

88 89 90
/* Display media title in OSD */
static void DisplayTitleOnOSD( vout_thread_t *p_vout );

91 92 93 94 95 96
/*****************************************************************************
 * Video Filter2 functions
 *****************************************************************************/
static picture_t *video_new_buffer_filter( filter_t *p_filter )
{
    picture_t *p_picture;
97
    vout_thread_t *p_vout = (vout_thread_t*)p_filter->p_owner;
98 99 100 101 102 103 104 105

    p_picture = vout_CreatePicture( p_vout, 0, 0, 0 );

    return p_picture;
}

static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
{
106 107 108 109 110 111 112 113 114
    vout_DestroyPicture( (vout_thread_t*)p_filter->p_owner, p_pic );
}

static int video_filter_buffer_allocation_init( filter_t *p_filter, void *p_data )
{
    p_filter->pf_vout_buffer_new = video_new_buffer_filter;
    p_filter->pf_vout_buffer_del = video_del_buffer_filter;
    p_filter->p_owner = p_data; /* p_vout */
    return VLC_SUCCESS;
115 116
}

117
/*****************************************************************************
118 119 120 121 122
 * vout_Request: find a video output thread, create one, or destroy one.
 *****************************************************************************
 * This function looks for a video output thread matching the current
 * properties. If not found, it spawns a new one.
 *****************************************************************************/
123 124
vout_thread_t *__vout_Request( vlc_object_t *p_this, vout_thread_t *p_vout,
                               video_format_t *p_fmt )
125
{
126
    if( !p_fmt )
127
    {
128 129 130
        /* Video output is no longer used.
         * TODO: support for reusing video outputs with proper _thread-safe_
         * reference handling. */
131
        if( p_vout )
132
            vout_CloseAndRelease( p_vout );
133 134 135 136 137 138 139 140 141
        return NULL;
    }

    /* If a video output was provided, lock it, otherwise look for one. */
    if( p_vout )
    {
        vlc_object_yield( p_vout );
    }

142
    /* TODO: find a suitable unused video output */
143 144 145 146

    /* If we now have a video output, check it has the right properties */
    if( p_vout )
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
147
        char *psz_filter_chain;
148
        vlc_value_t val;
Gildas Bazin's avatar
 
Gildas Bazin committed
149

150
        /* We don't directly check for the "vout-filter" variable for obvious
Gildas Bazin's avatar
 
Gildas Bazin committed
151 152 153
         * performance reasons. */
        if( p_vout->b_filter_change )
        {
154
            var_Get( p_vout, "vout-filter", &val );
155
            psz_filter_chain = val.psz_string;
Gildas Bazin's avatar
 
Gildas Bazin committed
156

157
            if( psz_filter_chain && !*psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
158 159 160 161
            {
                free( psz_filter_chain );
                psz_filter_chain = NULL;
            }
162
            if( p_vout->psz_filter_chain && !*p_vout->psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
163 164 165 166 167
            {
                free( p_vout->psz_filter_chain );
                p_vout->psz_filter_chain = NULL;
            }

168
            if( !psz_filter_chain && !p_vout->psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
169
            {
170
                p_vout->b_filter_change = false;
Gildas Bazin's avatar
 
Gildas Bazin committed
171 172
            }

173
            free( psz_filter_chain );
Gildas Bazin's avatar
 
Gildas Bazin committed
174 175
        }

176 177
        if( ( p_vout->fmt_render.i_width != p_fmt->i_width ) ||
            ( p_vout->fmt_render.i_height != p_fmt->i_height ) ||
178
            ( p_vout->fmt_render.i_aspect != p_fmt->i_aspect ) ||
Gildas Bazin's avatar
 
Gildas Bazin committed
179
            p_vout->b_filter_change )
180 181
        {
            /* We are not interested in this format, close this vout */
182
            vout_CloseAndRelease( p_vout );
183
            vlc_object_release( p_vout );
184 185 186 187 188
            p_vout = NULL;
        }
        else
        {
            /* This video output is cool! Hijack it. */
189
            spu_Attach( p_vout->p_spu, p_this, true );
190
            vlc_object_attach( p_vout, p_this );
191 192
            if( p_vout->b_title_show )
                DisplayTitleOnOSD( p_vout );
193 194 195 196 197 198 199 200
            vlc_object_release( p_vout );
        }
    }

    if( !p_vout )
    {
        msg_Dbg( p_this, "no usable vout present, spawning one" );

201
        p_vout = vout_Create( p_this, p_fmt );
202 203 204 205 206 207 208
    }

    return p_vout;
}

/*****************************************************************************
 * vout_Create: creates a new video output thread
209
 *****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
210 211
 * This function creates a new video output thread, and returns a pointer
 * to its description. On error, it returns NULL.
212
 *****************************************************************************/
213
vout_thread_t * __vout_Create( vlc_object_t *p_parent, video_format_t *p_fmt )
Michel Kaempf's avatar
Michel Kaempf committed
214
{
Gildas Bazin's avatar
 
Gildas Bazin committed
215 216 217
    vout_thread_t  * p_vout;                            /* thread descriptor */
    input_thread_t * p_input_thread;
    int              i_index;                               /* loop variable */
218
    vlc_value_t      val, text;
Michel Kaempf's avatar
Michel Kaempf committed
219

220 221
    unsigned int i_width = p_fmt->i_width;
    unsigned int i_height = p_fmt->i_height;
222 223 224
    vlc_fourcc_t i_chroma = p_fmt->i_chroma;
    unsigned int i_aspect = p_fmt->i_aspect;

225 226 227 228
    config_chain_t *p_cfg;
    char *psz_parser;
    char *psz_name;

229
    /* Allocate descriptor */
230 231 232
    static const char typename[] = "video output";
    p_vout = vlc_custom_create( p_parent, sizeof( *p_vout ), VLC_OBJECT_VOUT,
                                typename );
233
    if( p_vout == NULL )
234
        return NULL;
235

236
    /* Initialize pictures - translation tables and functions
Gildas Bazin's avatar
 
Gildas Bazin committed
237
     * will be initialized later in InitThread */
238
    for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++)
Gildas Bazin's avatar
 
Gildas Bazin committed
239 240 241 242 243
    {
        p_vout->p_picture[i_index].pf_lock = NULL;
        p_vout->p_picture[i_index].pf_unlock = NULL;
        p_vout->p_picture[i_index].i_status = FREE_PICTURE;
        p_vout->p_picture[i_index].i_type   = EMPTY_PICTURE;
244
        p_vout->p_picture[i_index].b_slow   = 0;
Gildas Bazin's avatar
 
Gildas Bazin committed
245 246 247 248 249 250 251
    }

    /* No images in the heap */
    p_vout->i_heap_size = 0;

    /* Initialize the rendering heap */
    I_RENDERPICTURES = 0;
252 253 254

    vlc_ureduce( &p_fmt->i_sar_num, &p_fmt->i_sar_den,
                 p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
255 256
    p_vout->fmt_render        = *p_fmt;   /* FIXME palette */
    p_vout->fmt_in            = *p_fmt;   /* FIXME palette */
257

Gildas Bazin's avatar
 
Gildas Bazin committed
258 259 260 261 262
    p_vout->render.i_width    = i_width;
    p_vout->render.i_height   = i_height;
    p_vout->render.i_chroma   = i_chroma;
    p_vout->render.i_aspect   = i_aspect;

263 264 265
    p_vout->render.i_rmask    = p_fmt->i_rmask;
    p_vout->render.i_gmask    = p_fmt->i_gmask;
    p_vout->render.i_bmask    = p_fmt->i_bmask;
Gildas Bazin's avatar
 
Gildas Bazin committed
266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288

    p_vout->render.i_last_used_pic = -1;
    p_vout->render.b_allow_modify_pics = 1;

    /* Zero the output heap */
    I_OUTPUTPICTURES = 0;
    p_vout->output.i_width    = 0;
    p_vout->output.i_height   = 0;
    p_vout->output.i_chroma   = 0;
    p_vout->output.i_aspect   = 0;

    p_vout->output.i_rmask    = 0;
    p_vout->output.i_gmask    = 0;
    p_vout->output.i_bmask    = 0;

    /* Initialize misc stuff */
    p_vout->i_changes    = 0;
    p_vout->f_gamma      = 0;
    p_vout->b_grayscale  = 0;
    p_vout->b_info       = 0;
    p_vout->b_interface  = 0;
    p_vout->b_scale      = 1;
    p_vout->b_fullscreen = 0;
Gildas Bazin's avatar
 
Gildas Bazin committed
289
    p_vout->i_alignment  = 0;
Gildas Bazin's avatar
 
Gildas Bazin committed
290 291 292
    p_vout->render_time  = 10;
    p_vout->c_fps_samples = 0;
    p_vout->b_filter_change = 0;
293 294
    p_vout->pf_control = NULL;
    p_vout->p_window = NULL;
295
    p_vout->i_par_num = p_vout->i_par_den = 1;
Gildas Bazin's avatar
 
Gildas Bazin committed
296 297

    /* Initialize locks */
298 299 300
    vlc_mutex_init( &p_vout->picture_lock );
    vlc_mutex_init( &p_vout->change_lock );
    vlc_mutex_init( &p_vout->vfilter_lock );
Gildas Bazin's avatar
 
Gildas Bazin committed
301

302 303 304 305 306 307 308
    /* Mouse coordinates */
    var_Create( p_vout, "mouse-x", VLC_VAR_INTEGER );
    var_Create( p_vout, "mouse-y", VLC_VAR_INTEGER );
    var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
    var_Create( p_vout, "mouse-moved", VLC_VAR_BOOL );
    var_Create( p_vout, "mouse-clicked", VLC_VAR_INTEGER );

309
    /* Initialize subpicture unit */
310
    p_vout->p_spu = spu_Create( p_vout );
311
    spu_Attach( p_vout->p_spu, p_parent, true );
312

Gildas Bazin's avatar
 
Gildas Bazin committed
313 314 315
    /* Attach the new object now so we can use var inheritance below */
    vlc_object_attach( p_vout, p_parent );

316 317
    spu_Init( p_vout->p_spu );

318 319
    /* Take care of some "interface/control" related initialisations */
    vout_IntfInit( p_vout );
Gildas Bazin's avatar
 
Gildas Bazin committed
320

Gildas Bazin's avatar
 
Gildas Bazin committed
321 322 323
    /* If the parent is not a VOUT object, that means we are at the start of
     * the video output pipe */
    if( p_parent->i_object_type != VLC_OBJECT_VOUT )
Sam Hocevar's avatar
 
Sam Hocevar committed
324
    {
325
        /* Look for the default filter configuration */
326 327
        p_vout->psz_filter_chain =
            var_CreateGetStringCommand( p_vout, "vout-filter" );
328 329

        /* Apply video filter2 objects on the first vout */
330 331
        p_vout->psz_vf2 =
            var_CreateGetStringCommand( p_vout, "video-filter" );
Gildas Bazin's avatar
 
Gildas Bazin committed
332 333 334 335
    }
    else
    {
        /* continue the parent's filter chain */
336
        char *psz_tmp;
Gildas Bazin's avatar
 
Gildas Bazin committed
337

338 339 340 341 342 343 344
        /* Ugly hack to jump to our configuration chain */
        p_vout->psz_filter_chain
            = ((vout_thread_t *)p_parent)->psz_filter_chain;
        p_vout->psz_filter_chain
            = config_ChainCreate( &psz_tmp, &p_cfg, p_vout->psz_filter_chain );
        config_ChainDestroy( p_cfg );
        free( psz_tmp );
345 346

        /* Create a video filter2 var ... but don't inherit values */
347 348 349
        var_Create( p_vout, "video-filter",
                    VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
        p_vout->psz_vf2 = var_GetString( p_vout, "video-filter" );
Gildas Bazin's avatar
 
Gildas Bazin committed
350 351
    }

352
    var_AddCallback( p_vout, "video-filter", VideoFilter2Callback, NULL );
353 354
    p_vout->p_vf2_chain = filter_chain_New( p_vout, "video filter2",
        false, video_filter_buffer_allocation_init, NULL, p_vout );
355

Gildas Bazin's avatar
 
Gildas Bazin committed
356
    /* Choose the video output module */
Gildas Bazin's avatar
 
Gildas Bazin committed
357
    if( !p_vout->psz_filter_chain || !*p_vout->psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
358
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
359 360
        var_Create( p_vout, "vout", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
        var_Get( p_vout, "vout", &val );
Antoine Cellerier's avatar
Antoine Cellerier committed
361
        psz_parser = val.psz_string;
Gildas Bazin's avatar
 
Gildas Bazin committed
362 363 364
    }
    else
    {
Antoine Cellerier's avatar
Antoine Cellerier committed
365
        psz_parser = strdup( p_vout->psz_filter_chain );
Sam Hocevar's avatar
 
Sam Hocevar committed
366 367
    }

Gildas Bazin's avatar
 
Gildas Bazin committed
368
    /* Create the vout thread */
369
    char* psz_tmp = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
Antoine Cellerier's avatar
Antoine Cellerier committed
370
    free( psz_parser );
371
    free( psz_tmp );
372
    p_vout->p_cfg = p_cfg;
Gildas Bazin's avatar
 
Gildas Bazin committed
373
    p_vout->p_module = module_Need( p_vout,
Gildas Bazin's avatar
 
Gildas Bazin committed
374
        ( p_vout->psz_filter_chain && *p_vout->psz_filter_chain ) ?
375
        "video filter" : "video output", psz_name, p_vout->psz_filter_chain && *p_vout->psz_filter_chain );
376
    free( psz_name );
Sam Hocevar's avatar
 
Sam Hocevar committed
377 378 379

    if( p_vout->p_module == NULL )
    {
380
        msg_Err( p_vout, "no suitable vout module" );
381 382
        // FIXME it's ugly but that's exactly the function that need to be called.
        EndThread( p_vout );
383
        vlc_object_detach( p_vout );
384
        vlc_object_release( p_vout );
385
        return NULL;
Sam Hocevar's avatar
 
Sam Hocevar committed
386
    }
Gildas Bazin's avatar
 
Gildas Bazin committed
387

Gildas Bazin's avatar
 
Gildas Bazin committed
388
    /* Create a few object variables for interface interaction */
Gildas Bazin's avatar
 
Gildas Bazin committed
389 390 391
    var_Create( p_vout, "deinterlace", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
    text.psz_string = _("Deinterlace");
    var_Change( p_vout, "deinterlace", VLC_VAR_SETTEXT, &text, NULL );
392
    val.psz_string = (char *)""; text.psz_string = _("Disable");
Gildas Bazin's avatar
 
Gildas Bazin committed
393
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
394
    val.psz_string = (char *)"discard"; text.psz_string = _("Discard");
Gildas Bazin's avatar
 
Gildas Bazin committed
395
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
396
    val.psz_string = (char *)"blend"; text.psz_string = _("Blend");
Gildas Bazin's avatar
 
Gildas Bazin committed
397
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
398
    val.psz_string = (char *)"mean"; text.psz_string = _("Mean");
Gildas Bazin's avatar
 
Gildas Bazin committed
399
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
400
    val.psz_string = (char *)"bob"; text.psz_string = _("Bob");
Gildas Bazin's avatar
 
Gildas Bazin committed
401
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
402
    val.psz_string = (char *)"linear"; text.psz_string = _("Linear");
Gildas Bazin's avatar
 
Gildas Bazin committed
403
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
404
    val.psz_string = (char *)"x"; text.psz_string = (char *)"X";
405 406
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );

Gildas Bazin's avatar
 
Gildas Bazin committed
407 408 409
    if( var_Get( p_vout, "deinterlace-mode", &val ) == VLC_SUCCESS )
    {
        var_Set( p_vout, "deinterlace", val );
410
        free( val.psz_string );
Gildas Bazin's avatar
 
Gildas Bazin committed
411
    }
Gildas Bazin's avatar
 
Gildas Bazin committed
412 413
    var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );

414
    var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
415
    text.psz_string = _("Filters");
416 417
    var_Change( p_vout, "vout-filter", VLC_VAR_SETTEXT, &text, NULL );
    var_AddCallback( p_vout, "vout-filter", FilterCallback, NULL );
418

Gildas Bazin's avatar
 
Gildas Bazin committed
419 420
    /* Calculate delay created by internal caching */
    p_input_thread = (input_thread_t *)vlc_object_find( p_vout,
Gildas Bazin's avatar
 
Gildas Bazin committed
421
                                           VLC_OBJECT_INPUT, FIND_ANYWHERE );
Gildas Bazin's avatar
 
Gildas Bazin committed
422 423
    if( p_input_thread )
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
424
        p_vout->i_pts_delay = p_input_thread->i_pts_delay;
Gildas Bazin's avatar
 
Gildas Bazin committed
425 426 427 428
        vlc_object_release( p_input_thread );
    }
    else
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
429
        p_vout->i_pts_delay = DEFAULT_PTS_DELAY;
Gildas Bazin's avatar
 
Gildas Bazin committed
430 431
    }

432
    if( vlc_thread_create( p_vout, "video output", RunThread,
433
                           VLC_THREAD_PRIORITY_OUTPUT, true ) )
Michel Kaempf's avatar
Michel Kaempf committed
434
    {
435
        module_Unneed( p_vout, p_vout->p_module );
436
        vlc_object_release( p_vout );
437 438 439
        return NULL;
    }

440 441
    vlc_object_set_destructor( p_vout, vout_Destructor );

442 443 444
    if( p_vout->b_error )
    {
        msg_Err( p_vout, "video output creation failed" );
445
        vout_CloseAndRelease( p_vout );
446
        return NULL;
447
    }
Michel Kaempf's avatar
Michel Kaempf committed
448

449
    return p_vout;
Michel Kaempf's avatar
Michel Kaempf committed
450 451
}

452
/*****************************************************************************
453
 * vout_Close: Close a vout created by vout_Create.
454
 *****************************************************************************
455 456 457 458
 * You HAVE to call it on vout created by vout_Create before vlc_object_release.
 * You should NEVER call it on vout not obtained though vout_Create
 * (like with vout_Request or vlc_object_find.)
 * You can use vout_CloseAndRelease() as a convenient method.
459
 *****************************************************************************/
460
void vout_Close( vout_thread_t *p_vout )
461 462 463 464 465 466
{
    assert( p_vout );

    vlc_object_kill( p_vout );
    vlc_thread_join( p_vout );
    module_Unneed( p_vout, p_vout->p_module );
467
    p_vout->p_module = NULL;
468 469 470
}

/* */
471 472
static void vout_Destructor( vlc_object_t * p_this )
{
473
    vout_thread_t *p_vout = (vout_thread_t *)p_this;
474

475 476 477
    /* Make sure the vout was stopped first */
    assert( !p_vout->p_module );

478 479 480 481 482
    /* Destroy the locks */
    vlc_mutex_destroy( &p_vout->picture_lock );
    vlc_mutex_destroy( &p_vout->change_lock );
    vlc_mutex_destroy( &p_vout->vfilter_lock );

483
    free( p_vout->psz_filter_chain );
Gildas Bazin's avatar
 
Gildas Bazin committed
484

485 486
    config_ChainDestroy( p_vout->p_cfg );

487
#ifndef __APPLE__
488
    vout_thread_t *p_another_vout;
489

490 491 492 493 494 495 496 497
    /* This is a dirty hack mostly for Linux, where there is no way to get the
     * GUI back if you closed it while playing video. This is solved in
     * Mac OS X, where we have this novelty called menubar, that will always
     * allow you access to the applications main functionality. They should try
     * that on linux sometime. */
    p_another_vout = vlc_object_find( p_this->p_libvlc,
                                      VLC_OBJECT_VOUT, FIND_ANYWHERE );
    if( p_another_vout == NULL )
498
        var_SetBool( p_this->p_libvlc, "intf-show", true );
499 500
    else
        vlc_object_release( p_another_vout );
501
#endif
Michel Kaempf's avatar
Michel Kaempf committed
502 503
}

504
/*****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
505
 * InitThread: initialize video output thread
506
 *****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
507 508 509
 * This function is called from RunThread and performs the second step of the
 * initialization. It returns 0 on success. Note that the thread's flag are not
 * modified inside this function.
510
 * XXX You have to enter it with change_lock taken.
511
 *****************************************************************************/
512 513
static int ChromaCreate( vout_thread_t *p_vout );
static void ChromaDestroy( vout_thread_t *p_vout );
Laurent Aimar's avatar
Laurent Aimar committed
514
static void DropPicture( vout_thread_t *p_vout, picture_t *p_picture );
515

Sam Hocevar's avatar
 
Sam Hocevar committed
516
static int InitThread( vout_thread_t *p_vout )
Vincent Seguin's avatar
Vincent Seguin committed
517
{
518
    int i, i_aspect_x, i_aspect_y;
Sam Hocevar's avatar
 
Sam Hocevar committed
519

Sam Hocevar's avatar
 
Sam Hocevar committed
520 521
#ifdef STATS
    p_vout->c_loops = 0;
Vincent Seguin's avatar
Vincent Seguin committed
522 523
#endif

Sam Hocevar's avatar
 
Sam Hocevar committed
524
    /* Initialize output method, it allocates direct buffers for us */
Sam Hocevar's avatar
 
Sam Hocevar committed
525
    if( p_vout->pf_init( p_vout ) )
526
        return VLC_EGENERIC;
Sam Hocevar's avatar
 
Sam Hocevar committed
527

Sam Hocevar's avatar
 
Sam Hocevar committed
528
    if( !I_OUTPUTPICTURES )
Sam Hocevar's avatar
 
Sam Hocevar committed
529
    {
530 531
        msg_Err( p_vout, "plugin was unable to allocate at least "
                         "one direct buffer" );
Sam Hocevar's avatar
 
Sam Hocevar committed
532
        p_vout->pf_end( p_vout );
533
        return VLC_EGENERIC;
534
    }
Vincent Seguin's avatar
Vincent Seguin committed
535

Gildas Bazin's avatar
 
Gildas Bazin committed
536 537 538 539 540 541 542 543
    if( I_OUTPUTPICTURES > VOUT_MAX_PICTURES )
    {
        msg_Err( p_vout, "plugin allocated too many direct buffers, "
                         "our internal buffers must have overflown." );
        p_vout->pf_end( p_vout );
        return VLC_EGENERIC;
    }

544
    msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
Sam Hocevar's avatar
 
Sam Hocevar committed
545

546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588
    AspectRatio( p_vout->fmt_render.i_aspect, &i_aspect_x, &i_aspect_y );

    msg_Dbg( p_vout, "picture in %ix%i (%i,%i,%ix%i), "
             "chroma %4.4s, ar %i:%i, sar %i:%i",
             p_vout->fmt_render.i_width, p_vout->fmt_render.i_height,
             p_vout->fmt_render.i_x_offset, p_vout->fmt_render.i_y_offset,
             p_vout->fmt_render.i_visible_width,
             p_vout->fmt_render.i_visible_height,
             (char*)&p_vout->fmt_render.i_chroma,
             i_aspect_x, i_aspect_y,
             p_vout->fmt_render.i_sar_num, p_vout->fmt_render.i_sar_den );

    AspectRatio( p_vout->fmt_in.i_aspect, &i_aspect_x, &i_aspect_y );

    msg_Dbg( p_vout, "picture user %ix%i (%i,%i,%ix%i), "
             "chroma %4.4s, ar %i:%i, sar %i:%i",
             p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
             p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
             p_vout->fmt_in.i_visible_width,
             p_vout->fmt_in.i_visible_height,
             (char*)&p_vout->fmt_in.i_chroma,
             i_aspect_x, i_aspect_y,
             p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den );

    if( !p_vout->fmt_out.i_width || !p_vout->fmt_out.i_height )
    {
        p_vout->fmt_out.i_width = p_vout->fmt_out.i_visible_width =
            p_vout->output.i_width;
        p_vout->fmt_out.i_height = p_vout->fmt_out.i_visible_height =
            p_vout->output.i_height;
        p_vout->fmt_out.i_x_offset =  p_vout->fmt_out.i_y_offset = 0;

        p_vout->fmt_out.i_aspect = p_vout->output.i_aspect;
        p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
    }
    if( !p_vout->fmt_out.i_sar_num || !p_vout->fmt_out.i_sar_num )
    {
        p_vout->fmt_out.i_sar_num = p_vout->fmt_out.i_aspect *
            p_vout->fmt_out.i_height;
        p_vout->fmt_out.i_sar_den = VOUT_ASPECT_FACTOR *
            p_vout->fmt_out.i_width;
    }

Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
589 590
    vlc_ureduce( &p_vout->fmt_out.i_sar_num, &p_vout->fmt_out.i_sar_den,
                 p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den, 0 );
591 592

    AspectRatio( p_vout->fmt_out.i_aspect, &i_aspect_x, &i_aspect_y );
Sam Hocevar's avatar
 
Sam Hocevar committed
593

594 595
    msg_Dbg( p_vout, "picture out %ix%i (%i,%i,%ix%i), "
             "chroma %4.4s, ar %i:%i, sar %i:%i",
596
             p_vout->fmt_out.i_width, p_vout->fmt_out.i_height,
597 598 599 600 601
             p_vout->fmt_out.i_x_offset, p_vout->fmt_out.i_y_offset,
             p_vout->fmt_out.i_visible_width,
             p_vout->fmt_out.i_visible_height,
             (char*)&p_vout->fmt_out.i_chroma,
             i_aspect_x, i_aspect_y,
602
             p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den );
Sam Hocevar's avatar
 
Sam Hocevar committed
603

Sam Hocevar's avatar
 
Sam Hocevar committed
604
    /* Calculate shifts from system-updated masks */
605 606 607 608 609 610 611
    MaskToShift( &p_vout->render.i_lrshift, &p_vout->output.i_rrshift,
                 p_vout->render.i_rmask );
    MaskToShift( &p_vout->render.i_lgshift, &p_vout->output.i_rgshift,
                 p_vout->render.i_gmask );
    MaskToShift( &p_vout->render.i_lbshift, &p_vout->output.i_rbshift,
                 p_vout->render.i_bmask );

Sam Hocevar's avatar
 
Sam Hocevar committed
612 613 614 615 616 617 618
    MaskToShift( &p_vout->output.i_lrshift, &p_vout->output.i_rrshift,
                 p_vout->output.i_rmask );
    MaskToShift( &p_vout->output.i_lgshift, &p_vout->output.i_rgshift,
                 p_vout->output.i_gmask );
    MaskToShift( &p_vout->output.i_lbshift, &p_vout->output.i_rbshift,
                 p_vout->output.i_bmask );

Sam Hocevar's avatar
 
Sam Hocevar committed
619
    /* Check whether we managed to create direct buffers similar to
620
     * the render buffers, ie same size and chroma */
Sam Hocevar's avatar
 
Sam Hocevar committed
621 622
    if( ( p_vout->output.i_width == p_vout->render.i_width )
     && ( p_vout->output.i_height == p_vout->render.i_height )
623
     && ( vout_ChromaCmp( p_vout->output.i_chroma, p_vout->render.i_chroma ) ) )
Sam Hocevar's avatar
 
Sam Hocevar committed
624
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
625 626 627 628
        /* Cool ! We have direct buffers, we can ask the decoder to
         * directly decode into them ! Map the first render buffers to
         * the first direct buffers, but keep the first direct buffer
         * for memcpy operations */
Sam Hocevar's avatar
 
Sam Hocevar committed
629 630
        p_vout->b_direct = 1;

Sam Hocevar's avatar
 
Sam Hocevar committed
631 632
        for( i = 1; i < VOUT_MAX_PICTURES; i++ )
        {
Gildas Bazin's avatar
 
Gildas Bazin committed
633 634 635 636 637 638 639 640
            if( p_vout->p_picture[ i ].i_type != DIRECT_PICTURE &&
                I_RENDERPICTURES >= VOUT_MIN_DIRECT_PICTURES - 1 &&
                p_vout->p_picture[ i - 1 ].i_type == DIRECT_PICTURE )
            {
                /* We have enough direct buffers so there's no need to
                 * try to use system memory buffers. */
                break;
            }
Sam Hocevar's avatar
 
Sam Hocevar committed
641 642 643
            PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
            I_RENDERPICTURES++;
        }
Gildas Bazin's avatar
 
Gildas Bazin committed
644 645 646 647

        msg_Dbg( p_vout, "direct render, mapping "
                 "render pictures 0-%i to system pictures 1-%i",
                 VOUT_MAX_PICTURES - 2, VOUT_MAX_PICTURES - 1 );
Sam Hocevar's avatar
 
Sam Hocevar committed
648 649 650
    }
    else
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
651 652 653
        /* Rats... Something is wrong here, we could not find an output
         * plugin able to directly render what we decode. See if we can
         * find a chroma plugin to do the conversion */
Sam Hocevar's avatar
 
Sam Hocevar committed
654 655
        p_vout->b_direct = 0;

656
        if( ChromaCreate( p_vout ) )
Sam Hocevar's avatar
 
Sam Hocevar committed
657 658
        {
            p_vout->pf_end( p_vout );
659
            return VLC_EGENERIC;
Sam Hocevar's avatar
 
Sam Hocevar committed
660
        }
Sam Hocevar's avatar
 
Sam Hocevar committed
661

Gildas Bazin's avatar
 
Gildas Bazin committed
662 663 664 665
        msg_Dbg( p_vout, "indirect render, mapping "
                 "render pictures 0-%i to system pictures %i-%i",
                 VOUT_MAX_PICTURES - 1, I_OUTPUTPICTURES,
                 I_OUTPUTPICTURES + VOUT_MAX_PICTURES - 1 );
Sam Hocevar's avatar
 
Sam Hocevar committed
666 667

        /* Append render buffers after the direct buffers */
Sam Hocevar's avatar
 
Sam Hocevar committed
668
        for( i = I_OUTPUTPICTURES; i < 2 * VOUT_MAX_PICTURES; i++ )
Sam Hocevar's avatar
 
Sam Hocevar committed
669 670 671
        {
            PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
            I_RENDERPICTURES++;
Gildas Bazin's avatar
 
Gildas Bazin committed
672 673 674 675

            /* Check if we have enough render pictures */
            if( I_RENDERPICTURES == VOUT_MAX_PICTURES )
                break;
Sam Hocevar's avatar
 
Sam Hocevar committed
676 677
        }
    }
Vincent Seguin's avatar
Vincent Seguin committed
678

Sam Hocevar's avatar
 
Sam Hocevar committed
679 680 681 682 683 684 685 686 687 688 689
    /* Link pictures back to their heap */
    for( i = 0 ; i < I_RENDERPICTURES ; i++ )
    {
        PP_RENDERPICTURE[ i ]->p_heap = &p_vout->render;
    }

    for( i = 0 ; i < I_OUTPUTPICTURES ; i++ )
    {
        PP_OUTPUTPICTURE[ i ]->p_heap = &p_vout->output;
    }

690
    return VLC_SUCCESS;
Vincent Seguin's avatar
Vincent Seguin committed
691 692
}

693
/*****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
694
 * RunThread: video output thread
695
 *****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
696 697 698
 * Video output thread. This function does only returns when the thread is
 * terminated. It handles the pictures arriving in the video heap and the
 * display device events.
699
 *****************************************************************************/
700
static void* RunThread( vlc_object_t *p_this )
Vincent Seguin's avatar
Vincent Seguin committed
701
{
702
    vout_thread_t *p_vout = (vout_thread_t *)p_this;
Sam Hocevar's avatar
 
Sam Hocevar committed
703
    int             i_index;                                /* index in heap */
704
    int             i_idle_loops = 0;  /* loops without displaying a picture */
Sam Hocevar's avatar
 
Sam Hocevar committed
705 706 707 708
    mtime_t         current_date;                            /* current date */
    mtime_t         display_date;                            /* display date */

    picture_t *     p_picture;                            /* picture pointer */
709
    picture_t *     p_last_picture = NULL;                   /* last picture */
Sam Hocevar's avatar
 
Sam Hocevar committed
710 711
    picture_t *     p_directbuffer;              /* direct buffer to display */

712
    subpicture_t *  p_subpic = NULL;                   /* subpicture pointer */
Sam Hocevar's avatar
 
Sam Hocevar committed
713

714
    input_thread_t *p_input = NULL ;           /* Parent input, if it exists */
715

716
    vlc_value_t     val;
717
    bool      b_drop_late;
718

719 720
    int             i_displayed = 0, i_lost = 0, i_loops = 0;

Sam Hocevar's avatar
 
Sam Hocevar committed
721 722 723
    /*
     * Initialize thread
     */
724
    vlc_mutex_lock( &p_vout->change_lock );
Sam Hocevar's avatar
 
Sam Hocevar committed
725
    p_vout->b_error = InitThread( p_vout );
Gildas Bazin's avatar
 
Gildas Bazin committed
726

727 728 729 730
    var_Create( p_vout, "drop-late-frames", VLC_VAR_BOOL | VLC_VAR_DOINHERIT );
    var_Get( p_vout, "drop-late-frames", &val );
    b_drop_late = val.b_bool;

Gildas Bazin's avatar
 
Gildas Bazin committed
731 732 733
    /* signal the creation of the vout */
    vlc_thread_ready( p_vout );

Sam Hocevar's avatar
 
Sam Hocevar committed
734
    if( p_vout->b_error )
735
    {
Laurent Aimar's avatar
Laurent Aimar committed
736
        EndThread( p_vout );
737
        vlc_mutex_unlock( &p_vout->change_lock );
738
        return NULL;
739
    }
740

741 742
    vlc_object_lock( p_vout );

743 744
    if( p_vout->b_title_show )
        DisplayTitleOnOSD( p_vout );
745

746
    /*
Sam Hocevar's avatar
Sam Hocevar committed
747
     * Main loop - it is not executed if an error occurred during
Sam Hocevar's avatar
 
Sam Hocevar committed
748
     * initialization
749
     */
Laurent Aimar's avatar
Laurent Aimar committed
750
    while( vlc_object_alive( p_vout ) && !p_vout->b_error )
751
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
752
        /* Initialize loop variables */
753
        p_picture = NULL;
Sam Hocevar's avatar
 
Sam Hocevar committed
754 755
        display_date = 0;
        current_date = mdate();
Sam Hocevar's avatar
 
Sam Hocevar committed
756

757
        i_loops++;
Laurent Aimar's avatar
Laurent Aimar committed
758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775
        if( !p_input )
        {
            p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT,
                                       FIND_PARENT );
        }
        if( p_input )
        {
            vlc_mutex_lock( &p_input->p->counters.counters_lock );
            stats_UpdateInteger( p_vout, p_input->p->counters.p_lost_pictures,
                                 i_lost , NULL);
            stats_UpdateInteger( p_vout,
                                 p_input->p->counters.p_displayed_pictures,
                                 i_displayed , NULL);
            i_displayed = i_lost = 0;
            vlc_mutex_unlock( &p_input->p->counters.counters_lock );
            vlc_object_release( p_input );
            p_input = NULL;
        }
776
#if 0
Sam Hocevar's avatar
 
Sam Hocevar committed
777 778
        p_vout->c_loops++;
        if( !(p_vout->c_loops % VOUT_STATS_NB_LOOPS) )
779
        {
780 781
            msg_Dbg( p_vout, "picture heap: %d/%d",
                     I_RENDERPICTURES, p_vout->i_heap_size );
Sam Hocevar's avatar
 
Sam Hocevar committed
782
        }
783
#endif
Sam Hocevar's avatar
 
Sam Hocevar committed
784 785

        /*
786 787 788
         * Find the picture to display (the one with the earliest date).
         * This operation does not need lock, since only READY_PICTUREs
         * are handled. */
789
        for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
Sam Hocevar's avatar
 
Sam Hocevar committed
790
        {
Sam Hocevar's avatar
 
Sam Hocevar committed
791 792 793
            if( (PP_RENDERPICTURE[i_index]->i_status == READY_PICTURE)
                && ( (p_picture == NULL) ||
                     (PP_RENDERPICTURE[i_index]->date < display_date) ) )
794
            {
Sam Hocevar's avatar
 
Sam Hocevar committed
795
                p_picture = PP_RENDERPICTURE[i_index];
Sam Hocevar's avatar
 
Sam Hocevar committed
796
                display_date = p_picture->date;
797 798
            }
        }
Sam Hocevar's avatar
 
Sam Hocevar committed
799

800
        if( p_picture )
801
        {
802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817
            /* If we met the last picture, parse again to see whether there is
             * a more appropriate one. */
            if( p_picture == p_last_picture )
            {
                for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
                {
                    if( (PP_RENDERPICTURE[i_index]->i_status == READY_PICTURE)
                        && (PP_RENDERPICTURE[i_index] != p_last_picture)
                        && ((p_picture == p_last_picture) ||
                            (PP_RENDERPICTURE[i_index]->date < display_date)) )
                    {
                        p_picture = PP_RENDERPICTURE[i_index];
                        display_date = p_picture->date;
                    }
                }
            }
818

819 820 821
            /* If we found better than the last picture, destroy it */
            if( p_last_picture && p_picture != p_last_picture )
            {
Laurent Aimar's avatar
Laurent Aimar committed
822
                DropPicture( p_vout, p_last_picture );
823
                p_last_picture = NULL;
824 825
            }

Sam Hocevar's avatar
 
Sam Hocevar committed
826 827 828 829
            /* Compute FPS rate */
            p_vout->p_fps_sample[ p_vout->c_fps_samples++ % VOUT_FPS_SAMPLES ]
                = display_date;

830
            if( !p_picture->b_force &&
831
                p_picture != p_last_picture &&
832
                display_date < current_date + p_vout->render_time &&
833
                b_drop_late )
Sam Hocevar's avatar
 
Sam Hocevar committed
834 835 836
            {
                /* Picture is late: it will be destroyed and the thread
                 * will directly choose the next picture */
Laurent Aimar's avatar
Laurent Aimar committed
837 838
                DropPicture( p_vout, p_picture );
                i_lost++;
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
839
                msg_Warn( p_vout, "late picture skipped (%"PRId64")",
840
                                  current_date - display_date );
841 842
                continue;
            }
843

Gildas Bazin's avatar
 
Gildas Bazin committed
844
            if( display_date >
845
                current_date + p_vout->i_pts_delay + VOUT_BOGUS_DELAY )
846 847
            {
                /* Picture is waaay too early: it will be destroyed */
Laurent Aimar's avatar
Laurent Aimar committed
848
                DropPicture( p_vout, p_picture );
849
                i_lost++;
850
                msg_Warn( p_vout, "vout warning: early picture skipped "
Rémi Denis-Courmont's avatar
Rémi Denis-Courmont committed
851
                          "(%"PRId64")", display_date - current_date
Gildas Bazin's avatar
 
Gildas Bazin committed
852
                          - p_vout->i_pts_delay );
Sam Hocevar's avatar
 
Sam Hocevar committed
853 854
                continue;
            }
855

856
            if( display_date > current_date + VOUT_DISPLAY_DELAY )
Sam Hocevar's avatar
 
Sam Hocevar committed
857 858 859 860 861 862 863 864
            {
                /* A picture is ready to be rendered, but its rendering date
                 * is far from the current one so the thread will perform an
                 * empty loop as if no picture were found. The picture state
                 * is unchanged */
                p_picture    = NULL;
                display_date = 0;
            }
865 866
            else if( p_picture == p_last_picture )
            {
867 868
                /* We are asked to repeat the previous picture, but we first
                 * wait for a couple of idle loops */
869 870 871 872 873 874 875
                if( i_idle_loops < 4 )
                {
                    p_picture    = NULL;
                    display_date = 0;
                }
                else
                {
876 877 878
                    /* We set the display date to something high, otherwise
                     * we'll have lots of problems with late pictures */
                    display_date = current_date + p_vout->render_time;
879 880 881 882 883 884 885
                }
            }
        }

        if( p_picture == NULL )
        {
            i_idle_loops++;
886 887
        }

888 889
        if( p_picture )
        {
890 891
            p_picture = filter_chain_VideoFilter( p_vout->p_vf2_chain,
                                                  p_picture );
892 893
        }

894 895
        if( p_picture && p_vout->b_snapshot )
        {
896
            p_vout->b_snapshot = false;
897 898 899
            vout_Snapshot( p_vout, p_picture );
        }

Sam Hocevar's avatar
 
Sam Hocevar committed
900 901 902
        /*
         * Check for subpictures to display
         */
903 904
        if( display_date > 0 )
        {
905
            if( !p_input )
906
            {
907 908
                p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT,
                                           FIND_PARENT );
909
            }
910
            p_subpic = spu_SortSubpictures( p_vout->p_spu, display_date,
911
            p_input ? var_GetBool( p_input, "state" ) == PAUSE_S : false );
912 913 914
            if( p_input )
                vlc_object_release( p_input );
            p_input = NULL;
915
        }
916

Sam Hocevar's avatar
 
Sam Hocevar committed
917 918 919
        /*
         * Perform rendering
         */
920
        i_displayed++;
Sam Hocevar's avatar
 
Sam Hocevar committed
921 922
        p_directbuffer = vout_RenderPicture( p_vout, p_picture, p_subpic );

Sam Hocevar's avatar
 
Sam Hocevar committed
923
        /*
924
         * Call the plugin-specific rendering method if there is one
Sam Hocevar's avatar
 
Sam Hocevar committed
925
         */
Gildas Bazin's avatar
 
Gildas Bazin committed
926
        if( p_picture != NULL && p_directbuffer != NULL && p_vout->pf_render )
Sam Hocevar's avatar
 
Sam Hocevar committed
927 928 929 930 931
        {
            /* Render the direct buffer returned by vout_RenderPicture */
            p_vout->pf_render( p_vout, p_directbuffer );
        }

Sam Hocevar's avatar
 
Sam Hocevar committed
932 933 934
        /*
         * Sleep, wake up
         */
Gildas Bazin's avatar
 
Gildas Bazin committed
935
        if( display_date != 0 && p_directbuffer != NULL )
936
        {
937 938 939 940 941 942 943 944 945 946 947
            mtime_t current_render_time = mdate() - current_date;
            /* if render time is very large we don't include it in the mean */
            if( current_render_time < p_vout->render_time +
                VOUT_DISPLAY_DELAY )
            {
                /* Store render time using a sliding mean weighting to
                 * current value in a 3 to 1 ratio*/
                p_vout->render_time *= 3;
                p_vout->render_time += current_render_time;
                p_vout->render_time >>= 2;
            }
948 949
        }

Sam Hocevar's avatar
 
Sam Hocevar committed
950 951 952
        /* Give back change lock */
        vlc_mutex_unlock( &p_vout->change_lock );

953 954
        vlc_object_unlock( p_vout );

Sam Hocevar's avatar
 
Sam Hocevar committed
955
        /* Sleep a while or until a given date */
Gildas Bazin's avatar
 
Gildas Bazin committed
956
        if( display_date != 0 )
Sam Hocevar's avatar
Sam Hocevar committed
957
        {
Gildas Bazin's avatar
 
Gildas Bazin committed
958 959 960 961 962 963
            /* If there are filters in the chain, better give them the picture
             * in advance */
            if( !p_vout->psz_filter_chain || !*p_vout->psz_filter_chain )
            {
                mwait( display_date - VOUT_MWAIT_TOLERANCE );
            }
964 965 966
        }
        else
        {
Sam Hocevar's avatar
 
Sam Hocevar committed
967
            msleep( VOUT_IDLE_SLEEP );
968
        }
969

Sam Hocevar's avatar
 
Sam Hocevar committed
970 971
        /* On awakening, take back lock and send immediately picture
         * to display. */
972 973 974
        vlc_object_lock( p_vout );
        /* Note: vlc_object_alive() could be false here, and we
         * could be dead */
Sam Hocevar's avatar
 
Sam Hocevar committed
975 976 977 978 979
        vlc_mutex_lock( &p_vout->change_lock );

        /*
         * Display the previously rendered picture
         */
Gildas Bazin's avatar
 
Gildas Bazin committed
980
        if( p_picture != NULL && p_directbuffer != NULL )
Sam Hocevar's avatar
 
Sam Hocevar committed
981 982
        {
            /* Display the direct buffer returned by vout_RenderPicture */
983 984 985 986
            if( p_vout->pf_display )
            {
                p_vout->pf_display( p_vout, p_directbuffer );
            }
Vincent Seguin's avatar
Vincent Seguin committed
987