video_output.c 59.1 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
#include <vlc/vlc.h>

34
#include <stdlib.h>                                                /* free() */
35
#include <string.h>
Vincent Seguin's avatar
Vincent Seguin committed
36

Sam Hocevar's avatar
 
Sam Hocevar committed
37

38 39
#ifdef HAVE_SYS_TIMES_H
#   include <sys/times.h>
40
#endif
41

Clément Stenac's avatar
Clément Stenac committed
42 43
#include <vlc_vout.h>
#include <vlc_playlist.h>
44

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

48
#if defined( __APPLE__ )
Clément Stenac's avatar
Clément Stenac committed
49
/* Include darwin_specific.h here if needed */
50 51
#endif

Clément Stenac's avatar
Clément Stenac committed
52 53 54 55
/** FIXME This is quite ugly but needed while we don't have counters
 * helpers */
#include "input/input_internal.h"

56 57
#include "modules/modules.h"

58
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
59
 * Local prototypes
60
 *****************************************************************************/
61 62 63 64 65
static int      InitThread        ( vout_thread_t * );
static void     RunThread         ( vout_thread_t * );
static void     ErrorThread       ( vout_thread_t * );
static void     EndThread         ( vout_thread_t * );
static void     DestroyThread     ( vout_thread_t * );
Sam Hocevar's avatar
 
Sam Hocevar committed
66

67
static void     AspectRatio       ( int, int *, int * );
68 69
static int      BinaryLog         ( uint32_t );
static void     MaskToShift       ( int *, int *, uint32_t );
Michel Kaempf's avatar
Michel Kaempf committed
70

Gildas Bazin's avatar
 
Gildas Bazin committed
71
/* Object variables callbacks */
Gildas Bazin's avatar
 
Gildas Bazin committed
72 73
static int DeinterlaceCallback( vlc_object_t *, char const *,
                                vlc_value_t, vlc_value_t, void * );
74 75
static int FilterCallback( vlc_object_t *, char const *,
                           vlc_value_t, vlc_value_t, void * );
76 77
static int VideoFilter2Callback( vlc_object_t *, char const *,
                                 vlc_value_t, vlc_value_t, void * );
Gildas Bazin's avatar
 
Gildas Bazin committed
78

79 80 81
/* From vout_intf.c */
int vout_Snapshot( vout_thread_t *, picture_t * );

82 83 84 85
/* Video filter2 parsing */
static int ParseVideoFilter2Chain( vout_thread_t *, char * );
static void RemoveVideoFilters2( vout_thread_t *p_vout );

86 87 88
/* Display media title in OSD */
static void DisplayTitleOnOSD( vout_thread_t *p_vout );

89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111
/*****************************************************************************
 * Video Filter2 functions
 *****************************************************************************/
struct filter_owner_sys_t
{
    vout_thread_t *p_vout;
};

static picture_t *video_new_buffer_filter( filter_t *p_filter )
{
    picture_t *p_picture;
    vout_thread_t *p_vout = p_filter->p_owner->p_vout;

    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 )
{
    vout_DestroyPicture( p_filter->p_owner->p_vout, p_pic );
}

112
/*****************************************************************************
113 114 115 116 117
 * 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.
 *****************************************************************************/
118 119
vout_thread_t *__vout_Request( vlc_object_t *p_this, vout_thread_t *p_vout,
                               video_format_t *p_fmt )
120
{
121
    if( !p_fmt )
122
    {
123
        /* Reattach video output to playlist before bailing out */
124 125
        if( p_vout )
        {
126
            playlist_t  *p_playlist = pl_Yield( p_this );
127 128 129 130
            spu_Attach( p_vout->p_spu, p_this, VLC_FALSE );
            vlc_object_detach( p_vout );
            vlc_object_attach( p_vout, p_playlist );
            pl_Release( p_this );
131 132 133 134 135 136 137 138 139 140 141 142 143 144 145
        }
        return NULL;
    }

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

        if( !p_vout )
        {
146 147 148 149 150 151
            playlist_t *p_playlist = pl_Yield( p_this );
            vlc_mutex_lock( &p_playlist->gc_lock );
            p_vout = vlc_object_find( p_playlist,
                                      VLC_OBJECT_VOUT, FIND_CHILD );
            /* only first children of p_input for unused vout */
            if( p_vout && p_vout->p_parent != (vlc_object_t *)p_playlist )
Gildas Bazin's avatar
 
Gildas Bazin committed
152
            {
153 154
                vlc_object_release( p_vout );
                p_vout = NULL;
Gildas Bazin's avatar
 
Gildas Bazin committed
155
            }
156 157
            if( p_vout )
                vlc_object_detach( p_vout );    /* Remove it from the GC */
158
            vlc_mutex_unlock( &p_playlist->gc_lock );
Clément Stenac's avatar
Oups  
Clément Stenac committed
159
            pl_Release( p_this );
160 161 162 163 164 165
        }
    }

    /* If we now have a video output, check it has the right properties */
    if( p_vout )
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
166
        char *psz_filter_chain;
167
        vlc_value_t val;
Gildas Bazin's avatar
 
Gildas Bazin committed
168

169
        /* We don't directly check for the "vout-filter" variable for obvious
Gildas Bazin's avatar
 
Gildas Bazin committed
170 171 172
         * performance reasons. */
        if( p_vout->b_filter_change )
        {
173
            var_Get( p_vout, "vout-filter", &val );
174
            psz_filter_chain = val.psz_string;
Gildas Bazin's avatar
 
Gildas Bazin committed
175 176 177 178 179 180 181 182 183 184 185 186

            if( psz_filter_chain && !*psz_filter_chain )
            {
                free( psz_filter_chain );
                psz_filter_chain = NULL;
            }
            if( p_vout->psz_filter_chain && !*p_vout->psz_filter_chain )
            {
                free( p_vout->psz_filter_chain );
                p_vout->psz_filter_chain = NULL;
            }

187
            if( !psz_filter_chain && !p_vout->psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
188 189 190 191
            {
                p_vout->b_filter_change = VLC_FALSE;
            }

Gildas Bazin's avatar
 
Gildas Bazin committed
192
            if( psz_filter_chain ) free( psz_filter_chain );
Gildas Bazin's avatar
 
Gildas Bazin committed
193 194
        }

195 196 197
        if( ( p_vout->fmt_render.i_width != p_fmt->i_width ) ||
            ( p_vout->fmt_render.i_height != p_fmt->i_height ) ||
            ( p_vout->fmt_render.i_chroma != p_fmt->i_chroma ) ||
198
            ( p_vout->fmt_render.i_aspect != p_fmt->i_aspect ) ||
Gildas Bazin's avatar
 
Gildas Bazin committed
199
            p_vout->b_filter_change )
200 201 202 203 204 205 206 207 208
        {
            /* We are not interested in this format, close this vout */
            vlc_object_release( p_vout );
            vout_Destroy( p_vout );
            p_vout = NULL;
        }
        else
        {
            /* This video output is cool! Hijack it. */
209
            spu_Attach( p_vout->p_spu, p_this, VLC_TRUE );
210 211 212 213 214 215 216 217 218
            vlc_object_attach( p_vout, p_this );
            vlc_object_release( p_vout );
        }
    }

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

219
        p_vout = vout_Create( p_this, p_fmt );
220 221 222 223 224 225 226
    }

    return p_vout;
}

/*****************************************************************************
 * vout_Create: creates a new video output thread
227
 *****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
228 229
 * This function creates a new video output thread, and returns a pointer
 * to its description. On error, it returns NULL.
230
 *****************************************************************************/
231
vout_thread_t * __vout_Create( vlc_object_t *p_parent, video_format_t *p_fmt )
Michel Kaempf's avatar
Michel Kaempf committed
232
{
Gildas Bazin's avatar
 
Gildas Bazin committed
233 234 235
    vout_thread_t  * p_vout;                            /* thread descriptor */
    input_thread_t * p_input_thread;
    int              i_index;                               /* loop variable */
236
    vlc_value_t      val, text;
Michel Kaempf's avatar
Michel Kaempf committed
237

238 239
    unsigned int i_width = p_fmt->i_width;
    unsigned int i_height = p_fmt->i_height;
240 241 242
    vlc_fourcc_t i_chroma = p_fmt->i_chroma;
    unsigned int i_aspect = p_fmt->i_aspect;

243 244 245 246
    config_chain_t *p_cfg;
    char *psz_parser;
    char *psz_name;

247
    /* Allocate descriptor */
248
    p_vout = vlc_object_create( p_parent, VLC_OBJECT_VOUT );
249
    if( p_vout == NULL )
Michel Kaempf's avatar
Michel Kaempf committed
250
    {
251
        msg_Err( p_parent, "out of memory" );
252
        return NULL;
Michel Kaempf's avatar
Michel Kaempf committed
253
    }
254

255
    /* Initialize pictures - translation tables and functions
Gildas Bazin's avatar
 
Gildas Bazin committed
256
     * will be initialized later in InitThread */
257
    for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++)
Gildas Bazin's avatar
 
Gildas Bazin committed
258 259 260 261 262
    {
        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;
263
        p_vout->p_picture[i_index].b_slow   = 0;
Gildas Bazin's avatar
 
Gildas Bazin committed
264 265 266 267 268 269 270
    }

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

    /* Initialize the rendering heap */
    I_RENDERPICTURES = 0;
271 272 273

    vlc_ureduce( &p_fmt->i_sar_num, &p_fmt->i_sar_den,
                 p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
274 275
    p_vout->fmt_render        = *p_fmt;   /* FIXME palette */
    p_vout->fmt_in            = *p_fmt;   /* FIXME palette */
276

Gildas Bazin's avatar
 
Gildas Bazin committed
277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307
    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;

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

    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
308
    p_vout->i_alignment  = 0;
Gildas Bazin's avatar
 
Gildas Bazin committed
309 310 311
    p_vout->render_time  = 10;
    p_vout->c_fps_samples = 0;
    p_vout->b_filter_change = 0;
312
    p_vout->pf_control = 0;
313
    p_vout->p_parent_intf = 0;
314
    p_vout->i_par_num = p_vout->i_par_den = 1;
Gildas Bazin's avatar
 
Gildas Bazin committed
315 316 317 318

    /* Initialize locks */
    vlc_mutex_init( p_vout, &p_vout->picture_lock );
    vlc_mutex_init( p_vout, &p_vout->change_lock );
319
    vlc_mutex_init( p_vout, &p_vout->vfilter_lock );
Gildas Bazin's avatar
 
Gildas Bazin committed
320

321 322 323 324 325 326 327
    /* 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 );

328
    /* Initialize subpicture unit */
329
    p_vout->p_spu = spu_Create( p_vout );
330
    spu_Attach( p_vout->p_spu, p_parent, VLC_TRUE );
331

Gildas Bazin's avatar
 
Gildas Bazin committed
332 333 334
    /* Attach the new object now so we can use var inheritance below */
    vlc_object_attach( p_vout, p_parent );

335 336
    spu_Init( p_vout->p_spu );

337 338
    /* Take care of some "interface/control" related initialisations */
    vout_IntfInit( p_vout );
Gildas Bazin's avatar
 
Gildas Bazin committed
339

Gildas Bazin's avatar
 
Gildas Bazin committed
340 341 342
    /* 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
343
    {
344
        /* Look for the default filter configuration */
345 346
        var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
        var_Get( p_vout, "vout-filter", &val );
Gildas Bazin's avatar
 
Gildas Bazin committed
347
        p_vout->psz_filter_chain = val.psz_string;
348 349 350 351 352 353 354

        /* Apply video filter2 objects on the first vout */
        var_Create( p_vout, "video-filter",
                    VLC_VAR_STRING | VLC_VAR_DOINHERIT );
        var_Get( p_vout, "video-filter", &val );
        ParseVideoFilter2Chain( p_vout, val.psz_string );
        free( val.psz_string );
Gildas Bazin's avatar
 
Gildas Bazin committed
355 356 357 358
    }
    else
    {
        /* continue the parent's filter chain */
359
        char *psz_tmp;
Gildas Bazin's avatar
 
Gildas Bazin committed
360

361 362 363 364 365 366 367
        /* 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 );
368 369 370 371

        /* Create a video filter2 var ... but don't inherit values */
        var_Create( p_vout, "video-filter", VLC_VAR_STRING );
        ParseVideoFilter2Chain( p_vout, NULL );
Gildas Bazin's avatar
 
Gildas Bazin committed
372 373
    }

374 375 376 377
    var_AddCallback( p_vout, "video-filter", VideoFilter2Callback, NULL );
    p_vout->b_vfilter_change = VLC_TRUE;
    p_vout->i_vfilters = 0;

Gildas Bazin's avatar
 
Gildas Bazin committed
378
    /* Choose the video output module */
Gildas Bazin's avatar
 
Gildas Bazin committed
379
    if( !p_vout->psz_filter_chain || !*p_vout->psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
380
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
381 382
        var_Create( p_vout, "vout", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
        var_Get( p_vout, "vout", &val );
Antoine Cellerier's avatar
Antoine Cellerier committed
383
        psz_parser = val.psz_string;
Gildas Bazin's avatar
 
Gildas Bazin committed
384 385 386
    }
    else
    {
Antoine Cellerier's avatar
Antoine Cellerier committed
387
        psz_parser = strdup( p_vout->psz_filter_chain );
Sam Hocevar's avatar
 
Sam Hocevar committed
388 389
    }

Gildas Bazin's avatar
 
Gildas Bazin committed
390
    /* Create the vout thread */
Antoine Cellerier's avatar
Antoine Cellerier committed
391 392
    config_ChainCreate( &psz_name, &p_cfg, psz_parser );
    free( psz_parser );
393
    p_vout->p_cfg = p_cfg;
Gildas Bazin's avatar
 
Gildas Bazin committed
394
    p_vout->p_module = module_Need( p_vout,
Gildas Bazin's avatar
 
Gildas Bazin committed
395
        ( p_vout->psz_filter_chain && *p_vout->psz_filter_chain ) ?
396
        "video filter" : "video output", psz_name, 0 );
397
    free( psz_name );
Sam Hocevar's avatar
 
Sam Hocevar committed
398 399 400

    if( p_vout->p_module == NULL )
    {
401
        msg_Err( p_vout, "no suitable vout module" );
402
        vlc_object_detach( p_vout );
403
        vlc_object_destroy( p_vout );
404
        return NULL;
Sam Hocevar's avatar
 
Sam Hocevar committed
405
    }
Gildas Bazin's avatar
 
Gildas Bazin committed
406

Gildas Bazin's avatar
 
Gildas Bazin committed
407
    /* Create a few object variables for interface interaction */
Gildas Bazin's avatar
 
Gildas Bazin committed
408 409 410
    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 );
411
    val.psz_string = (char *)""; text.psz_string = _("Disable");
Gildas Bazin's avatar
 
Gildas Bazin committed
412
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
413
    val.psz_string = (char *)"discard"; text.psz_string = _("Discard");
Gildas Bazin's avatar
 
Gildas Bazin committed
414
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
415
    val.psz_string = (char *)"blend"; text.psz_string = _("Blend");
Gildas Bazin's avatar
 
Gildas Bazin committed
416
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
417
    val.psz_string = (char *)"mean"; text.psz_string = _("Mean");
Gildas Bazin's avatar
 
Gildas Bazin committed
418
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
419
    val.psz_string = (char *)"bob"; text.psz_string = _("Bob");
Gildas Bazin's avatar
 
Gildas Bazin committed
420
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
421
    val.psz_string = (char *)"linear"; text.psz_string = _("Linear");
Gildas Bazin's avatar
 
Gildas Bazin committed
422
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
423
    val.psz_string = (char *)"x"; text.psz_string = (char *)"X";
424 425
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );

Gildas Bazin's avatar
 
Gildas Bazin committed
426 427 428
    if( var_Get( p_vout, "deinterlace-mode", &val ) == VLC_SUCCESS )
    {
        var_Set( p_vout, "deinterlace", val );
Gildas Bazin's avatar
 
Gildas Bazin committed
429
        if( val.psz_string ) free( val.psz_string );
Gildas Bazin's avatar
 
Gildas Bazin committed
430
    }
Gildas Bazin's avatar
 
Gildas Bazin committed
431 432
    var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );

433
    var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
434
    text.psz_string = _("Filters");
435 436
    var_Change( p_vout, "vout-filter", VLC_VAR_SETTEXT, &text, NULL );
    var_AddCallback( p_vout, "vout-filter", FilterCallback, NULL );
437

Gildas Bazin's avatar
 
Gildas Bazin committed
438 439
    /* Calculate delay created by internal caching */
    p_input_thread = (input_thread_t *)vlc_object_find( p_vout,
Gildas Bazin's avatar
 
Gildas Bazin committed
440
                                           VLC_OBJECT_INPUT, FIND_ANYWHERE );
Gildas Bazin's avatar
 
Gildas Bazin committed
441 442
    if( p_input_thread )
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
443
        p_vout->i_pts_delay = p_input_thread->i_pts_delay;
Gildas Bazin's avatar
 
Gildas Bazin committed
444 445 446 447
        vlc_object_release( p_input_thread );
    }
    else
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
448
        p_vout->i_pts_delay = DEFAULT_PTS_DELAY;
Gildas Bazin's avatar
 
Gildas Bazin committed
449 450
    }

451
    if( vlc_thread_create( p_vout, "video output", RunThread,
Gildas Bazin's avatar
 
Gildas Bazin committed
452
                           VLC_THREAD_PRIORITY_OUTPUT, VLC_TRUE ) )
Michel Kaempf's avatar
Michel Kaempf committed
453
    {
454
        msg_Err( p_vout, "out of memory" );
455
        module_Unneed( p_vout, p_vout->p_module );
456 457 458 459 460 461 462 463 464 465
        vlc_object_detach( p_vout );
        vlc_object_destroy( p_vout );
        return NULL;
    }

    if( p_vout->b_error )
    {
        msg_Err( p_vout, "video output creation failed" );

        /* Make sure the thread is destroyed */
466
        vlc_object_kill( p_vout );
467 468 469
        vlc_thread_join( p_vout );

        vlc_object_detach( p_vout );
470 471
        vlc_object_destroy( p_vout );
        return NULL;
472
    }
Michel Kaempf's avatar
Michel Kaempf committed
473

474
    return p_vout;
Michel Kaempf's avatar
Michel Kaempf committed
475 476
}

477
/*****************************************************************************
478
 * vout_Destroy: destroys a previously created video output
479 480
 *****************************************************************************
 * Destroy a terminated thread.
Michel Kaempf's avatar
Michel Kaempf committed
481
 * The function will request a destruction of the specified thread. If pi_error
482
 * is NULL, it will return once the thread is destroyed. Else, it will be
Michel Kaempf's avatar
Michel Kaempf committed
483
 * update using one of the THREAD_* constants.
484
 *****************************************************************************/
485
void vout_Destroy( vout_thread_t *p_vout )
Clément Stenac's avatar
Clément Stenac committed
486
{
487
    vout_thread_t *p_another_vout;
488
    playlist_t *p_playlist = pl_Yield( p_vout );
Clément Stenac's avatar
Clément Stenac committed
489

Michel Kaempf's avatar
Michel Kaempf committed
490
    /* Request thread destruction */
491
    vlc_object_kill( p_vout );
492
    vlc_thread_join( p_vout );
Michel Kaempf's avatar
Michel Kaempf committed
493

494 495
    var_Destroy( p_vout, "intf-change" );

Gildas Bazin's avatar
 
Gildas Bazin committed
496 497
    if( p_vout->psz_filter_chain ) free( p_vout->psz_filter_chain );

498 499
    config_ChainDestroy( p_vout->p_cfg );

500
    /* Free structure */
501
    vlc_object_destroy( p_vout );
502 503 504 505 506
#ifndef __APPLE__
    /* This is a dirty hack for mostly 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 */
507 508 509
    p_another_vout = vlc_object_find( p_playlist,
                                      VLC_OBJECT_VOUT, FIND_ANYWHERE );
    if( p_another_vout == NULL )
510
    {
511 512 513 514 515 516 517
        vlc_value_t val;
        val.b_bool = VLC_TRUE;
        var_Set( p_playlist, "intf-show", val );
    }
    else
    {
        vlc_object_release( p_another_vout );
518
    }
519
#endif
520
    vlc_object_release( p_playlist );
Michel Kaempf's avatar
Michel Kaempf committed
521 522
}

523
/*****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
524
 * InitThread: initialize video output thread
525
 *****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
526 527 528
 * 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.
529
 *****************************************************************************/
Sam Hocevar's avatar
 
Sam Hocevar committed
530
static int InitThread( vout_thread_t *p_vout )
Vincent Seguin's avatar
Vincent Seguin committed
531
{
532
    int i, i_aspect_x, i_aspect_y;
Sam Hocevar's avatar
 
Sam Hocevar committed
533

Sam Hocevar's avatar
 
Sam Hocevar committed
534 535 536 537
    vlc_mutex_lock( &p_vout->change_lock );

#ifdef STATS
    p_vout->c_loops = 0;
Vincent Seguin's avatar
Vincent Seguin committed
538 539
#endif

Sam Hocevar's avatar
 
Sam Hocevar committed
540
    /* Initialize output method, it allocates direct buffers for us */
Sam Hocevar's avatar
 
Sam Hocevar committed
541
    if( p_vout->pf_init( p_vout ) )
Vincent Seguin's avatar
Vincent Seguin committed
542
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
543
        vlc_mutex_unlock( &p_vout->change_lock );
544
        return VLC_EGENERIC;
Sam Hocevar's avatar
 
Sam Hocevar committed
545 546
    }

Sam Hocevar's avatar
 
Sam Hocevar committed
547
    if( !I_OUTPUTPICTURES )
Sam Hocevar's avatar
 
Sam Hocevar committed
548
    {
549 550
        msg_Err( p_vout, "plugin was unable to allocate at least "
                         "one direct buffer" );
Sam Hocevar's avatar
 
Sam Hocevar committed
551
        p_vout->pf_end( p_vout );
Sam Hocevar's avatar
 
Sam Hocevar committed
552
        vlc_mutex_unlock( &p_vout->change_lock );
553
        return VLC_EGENERIC;
554
    }
Vincent Seguin's avatar
Vincent Seguin committed
555

Gildas Bazin's avatar
 
Gildas Bazin committed
556 557 558 559 560 561 562 563 564
    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 );
        vlc_mutex_unlock( &p_vout->change_lock );
        return VLC_EGENERIC;
    }

565
    msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
Sam Hocevar's avatar
 
Sam Hocevar committed
566

567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609
    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
610 611
    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 );
612 613

    AspectRatio( p_vout->fmt_out.i_aspect, &i_aspect_x, &i_aspect_y );
Sam Hocevar's avatar
 
Sam Hocevar committed
614

615 616
    msg_Dbg( p_vout, "picture out %ix%i (%i,%i,%ix%i), "
             "chroma %4.4s, ar %i:%i, sar %i:%i",
617
             p_vout->fmt_out.i_width, p_vout->fmt_out.i_height,
618 619 620 621 622
             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,
623
             p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den );
Sam Hocevar's avatar
 
Sam Hocevar committed
624

Sam Hocevar's avatar
 
Sam Hocevar committed
625 626 627 628 629 630 631 632
    /* Calculate shifts from system-updated masks */
    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
633
    /* Check whether we managed to create direct buffers similar to
634
     * the render buffers, ie same size and chroma */
Sam Hocevar's avatar
 
Sam Hocevar committed
635 636
    if( ( p_vout->output.i_width == p_vout->render.i_width )
     && ( p_vout->output.i_height == p_vout->render.i_height )
637
     && ( vout_ChromaCmp( p_vout->output.i_chroma, p_vout->render.i_chroma ) ) )
Sam Hocevar's avatar
 
Sam Hocevar committed
638
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
639 640 641 642
        /* 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
643 644
        p_vout->b_direct = 1;

Sam Hocevar's avatar
 
Sam Hocevar committed
645 646
        for( i = 1; i < VOUT_MAX_PICTURES; i++ )
        {
Gildas Bazin's avatar
 
Gildas Bazin committed
647 648 649 650 651 652 653 654
            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
655 656 657
            PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
            I_RENDERPICTURES++;
        }
Gildas Bazin's avatar
 
Gildas Bazin committed
658 659 660 661

        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
662 663 664
    }
    else
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
665 666 667
        /* 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
668 669
        p_vout->b_direct = 0;

Sam Hocevar's avatar
 
Sam Hocevar committed
670
        /* Choose the best module */
Gildas Bazin's avatar
 
Gildas Bazin committed
671
        p_vout->chroma.p_module = module_Need( p_vout, "chroma", NULL, 0 );
Sam Hocevar's avatar
 
Sam Hocevar committed
672

Sam Hocevar's avatar
 
Sam Hocevar committed
673 674
        if( p_vout->chroma.p_module == NULL )
        {
675
            msg_Err( p_vout, "no chroma module for %4.4s to %4.4s",
676 677
                     (char*)&p_vout->render.i_chroma,
                     (char*)&p_vout->output.i_chroma );
Sam Hocevar's avatar
 
Sam Hocevar committed
678 679
            p_vout->pf_end( p_vout );
            vlc_mutex_unlock( &p_vout->change_lock );
680
            return VLC_EGENERIC;
Sam Hocevar's avatar
 
Sam Hocevar committed
681
        }
Sam Hocevar's avatar
 
Sam Hocevar committed
682

Gildas Bazin's avatar
 
Gildas Bazin committed
683 684 685 686
        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
687 688

        /* Append render buffers after the direct buffers */
Sam Hocevar's avatar
 
Sam Hocevar committed
689
        for( i = I_OUTPUTPICTURES; i < 2 * VOUT_MAX_PICTURES; i++ )
Sam Hocevar's avatar
 
Sam Hocevar committed
690 691 692
        {
            PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
            I_RENDERPICTURES++;
Gildas Bazin's avatar
 
Gildas Bazin committed
693 694 695 696

            /* Check if we have enough render pictures */
            if( I_RENDERPICTURES == VOUT_MAX_PICTURES )
                break;
Sam Hocevar's avatar
 
Sam Hocevar committed
697 698
        }
    }
Vincent Seguin's avatar
Vincent Seguin committed
699

Sam Hocevar's avatar
 
Sam Hocevar committed
700 701 702 703 704 705 706 707 708 709 710
    /* 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;
    }

711
/* XXX XXX mark thread ready */
712
    return VLC_SUCCESS;
Vincent Seguin's avatar
Vincent Seguin committed
713 714
}

715
/*****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
716
 * RunThread: video output thread
717
 *****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
718 719 720
 * 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.
721
 *****************************************************************************/
Sam Hocevar's avatar
 
Sam Hocevar committed
722
static void RunThread( vout_thread_t *p_vout)
Vincent Seguin's avatar
Vincent Seguin committed
723
{
Sam Hocevar's avatar
 
Sam Hocevar committed
724
    int             i_index;                                /* index in heap */
725
    int             i_idle_loops = 0;  /* loops without displaying a picture */
Sam Hocevar's avatar
 
Sam Hocevar committed
726 727 728 729
    mtime_t         current_date;                            /* current date */
    mtime_t         display_date;                            /* display date */

    picture_t *     p_picture;                            /* picture pointer */
730
    picture_t *     p_last_picture = NULL;                   /* last picture */
Sam Hocevar's avatar
 
Sam Hocevar committed
731 732
    picture_t *     p_directbuffer;              /* direct buffer to display */

733
    subpicture_t *  p_subpic = NULL;                   /* subpicture pointer */
Sam Hocevar's avatar
 
Sam Hocevar committed
734

735
    input_thread_t *p_input = NULL ;           /* Parent input, if it exists */
736

737 738 739
    vlc_value_t     val;
    vlc_bool_t      b_drop_late;

740 741
    int             i_displayed = 0, i_lost = 0, i_loops = 0;

Sam Hocevar's avatar
 
Sam Hocevar committed
742 743 744 745
    /*
     * Initialize thread
     */
    p_vout->b_error = InitThread( p_vout );
Gildas Bazin's avatar
 
Gildas Bazin committed
746

747 748 749 750
    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
751 752 753
    /* signal the creation of the vout */
    vlc_thread_ready( p_vout );

Sam Hocevar's avatar
 
Sam Hocevar committed
754 755 756
    if( p_vout->b_error )
    {
        /* Destroy thread structures allocated by Create and InitThread */
757
        DestroyThread( p_vout );
Sam Hocevar's avatar
 
Sam Hocevar committed
758 759
        return;
    }
760

761 762
    DisplayTitleOnOSD( p_vout );

763
    /*
Sam Hocevar's avatar
Sam Hocevar committed
764
     * Main loop - it is not executed if an error occurred during
Sam Hocevar's avatar
 
Sam Hocevar committed
765
     * initialization
766
     */
Sam Hocevar's avatar
 
Sam Hocevar committed
767
    while( (!p_vout->b_die) && (!p_vout->b_error) )
768
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
769
        /* Initialize loop variables */
770
        p_picture = NULL;
Sam Hocevar's avatar
 
Sam Hocevar committed
771 772
        display_date = 0;
        current_date = mdate();
Sam Hocevar's avatar
 
Sam Hocevar committed
773

774 775 776 777 778
        if( p_input && p_input->b_die )
        {
            vlc_object_release( p_input );
            p_input = NULL;
        }
779

780 781 782
        i_loops++;
        if( i_loops % 20 == 0 )
        {
783 784 785 786 787
            if( !p_input )
            {
                p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT,
                                           FIND_PARENT );
            }
788 789
            if( p_input )
            {
Clément Stenac's avatar
Clément Stenac committed
790 791
                vlc_mutex_lock( &p_input->p->counters.counters_lock );
                stats_UpdateInteger( p_vout, p_input->p->counters.p_lost_pictures,
792 793
                                     i_lost , NULL);
                stats_UpdateInteger( p_vout,
Clément Stenac's avatar
Clément Stenac committed
794
                                     p_input->p->counters.p_displayed_pictures,
795 796
                                     i_displayed , NULL);
                i_displayed = i_lost = 0;
Clément Stenac's avatar
Clément Stenac committed
797
                vlc_mutex_unlock( &p_input->p->counters.counters_lock );
798 799
            }
        }
800
#if 0
Sam Hocevar's avatar
 
Sam Hocevar committed
801 802
        p_vout->c_loops++;
        if( !(p_vout->c_loops % VOUT_STATS_NB_LOOPS) )
803
        {
804 805
            msg_Dbg( p_vout, "picture heap: %d/%d",
                     I_RENDERPICTURES, p_vout->i_heap_size );
Sam Hocevar's avatar
 
Sam Hocevar committed
806
        }
807
#endif
Sam Hocevar's avatar
 
Sam Hocevar committed
808 809

        /*
810 811 812
         * Find the picture to display (the one with the earliest date).
         * This operation does not need lock, since only READY_PICTUREs
         * are handled. */
813
        for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
Sam Hocevar's avatar
 
Sam Hocevar committed
814
        {
Sam Hocevar's avatar
 
Sam Hocevar committed
815 816 817
            if( (PP_RENDERPICTURE[i_index]->i_status == READY_PICTURE)
                && ( (p_picture == NULL) ||
                     (PP_RENDERPICTURE[i_index]->date < display_date) ) )
818
            {
Sam Hocevar's avatar
 
Sam Hocevar committed
819
                p_picture = PP_RENDERPICTURE[i_index];
Sam Hocevar's avatar
 
Sam Hocevar committed
820
                display_date = p_picture->date;
821 822
            }
        }
Sam Hocevar's avatar
 
Sam Hocevar committed
823

824
        if( p_picture )
825
        {
826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841
            /* 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;
                    }
                }
            }
842

843 844 845 846 847 848 849 850 851 852 853 854 855 856
            /* If we found better than the last picture, destroy it */
            if( p_last_picture && p_picture != p_last_picture )
            {
                vlc_mutex_lock( &p_vout->picture_lock );
                if( p_last_picture->i_refcount )
                {
                    p_last_picture->i_status = DISPLAYED_PICTURE;
                }
                else
                {
                    p_last_picture->i_status = DESTROYED_PICTURE;
                    p_vout->i_heap_size--;
                }
                vlc_mutex_unlock( &p_vout->picture_lock );
857
                p_last_picture = NULL;
858 859
            }

Sam Hocevar's avatar
 
Sam Hocevar committed
860 861 862 863
            /* Compute FPS rate */
            p_vout->p_fps_sample[ p_vout->c_fps_samples++ % VOUT_FPS_SAMPLES ]
                = display_date;

864
            if( !p_picture->b_force &&
865
                p_picture != p_last_picture &&
866
                display_date < current_date + p_vout->render_time &&
867
                b_drop_late )
Sam Hocevar's avatar
 
Sam Hocevar committed
868 869 870 871 872 873 874 875 876 877 878 879 880 881
            {
                /* Picture is late: it will be destroyed and the thread
                 * will directly choose the next picture */
                vlc_mutex_lock( &p_vout->picture_lock );
                if( p_picture->i_refcount )
                {
                    /* Pretend we displayed the picture, but don't destroy
                     * it since the decoder might still need it. */
                    p_picture->i_status = DISPLAYED_PICTURE;
                }
                else
                {
                    /* Destroy the picture without displaying it */
                    p_picture->i_status = DESTROYED_PICTURE;
Sam Hocevar's avatar
 
Sam Hocevar committed
882
                    p_vout->i_heap_size--;
Sam Hocevar's avatar
 
Sam Hocevar committed
883
                }
Gildas Bazin's avatar
 
Gildas Bazin committed
884
                msg_Warn( p_vout, "late picture skipped ("I64Fd")",
885
                                  current_date - display_date );
886
                i_lost++;
887 888 889 890
                vlc_mutex_unlock( &p_vout->picture_lock );

                continue;
            }
891

Gildas Bazin's avatar
 
Gildas Bazin committed
892
            if( display_date >
893
                current_date + p_vout->i_pts_delay + VOUT_BOGUS_DELAY )
894 895 896 897 898 899 900 901 902 903 904 905 906 907 908
            {
                /* Picture is waaay too early: it will be destroyed */
                vlc_mutex_lock( &p_vout->picture_lock );
                if( p_picture->i_refcount )
                {
                    /* Pretend we displayed the picture, but don't destroy
                     * it since the decoder might still need it. */
                    p_picture->i_status = DISPLAYED_PICTURE;
                }
                else
                {
                    /* Destroy the picture without displaying it */
                    p_picture->i_status = DESTROYED_PICTURE;
                    p_vout->i_heap_size--;
                }
909
                i_lost++;
910
                msg_Warn( p_vout, "vout warning: early picture skipped "
Gildas Bazin's avatar
 
Gildas Bazin committed
911 912
                          "("I64Fd")", display_date - current_date
                          - p_vout->i_pts_delay );
Sam Hocevar's avatar
 
Sam Hocevar committed
913 914 915 916
                vlc_mutex_unlock( &p_vout->picture_lock );

                continue;
            }
917

918
            if( display_date > current_date + VOUT_DISPLAY_DELAY )
Sam Hocevar's avatar
 
Sam Hocevar committed
919 920 921 922 923 924 925 926
            {
                /* 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;
            }
927 928
            else if( p_picture == p_last_picture )
            {
929 930
                /* We are asked to repeat the previous picture, but we first
                 * wait for a couple of idle loops */
931 932 933 934 935 936 937
                if( i_idle_loops < 4 )
                {
                    p_picture    = NULL;
                    display_date = 0;
                }
                else
                {
938 939 940
                    /* 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;
941 942 943 944 945 946 947
                }
            }
        }

        if( p_picture == NULL )
        {
            i_idle_loops++;
948 949
        }

950 951 952 953
        /* Video Filter2 stuff */
        if( p_vout->b_vfilter_change == VLC_TRUE )
        {
            int i;
954
            vlc_mutex_lock( &p_vout->vfilter_lock );
955 956 957 958 959 960 961 962 963 964 965 966
            RemoveVideoFilters2( p_vout );
            for( i = 0; i < p_vout->i_vfilters_cfg; i++ )
            {
                filter_t *p_vfilter =
                    p_vout->pp_vfilters[p_vout->i_vfilters] =
                        vlc_object_create( p_vout, VLC_OBJECT_FILTER );

                vlc_object_attach( p_vfilter, p_vout );

                p_vfilter->pf_vout_buffer_new = video_new_buffer_filter;
                p_vfilter->pf_vout_buffer_del = video_del_buffer_filter;

Antoine Cellerier's avatar
Antoine Cellerier committed
967 968 969 970 971 972 973 974 975 976
                if( !p_vout->i_vfilters )
                {
                    p_vfilter->fmt_in.video = p_vout->fmt_render;
                }
                else
                {
                    p_vfilter->fmt_in.video = (p_vfilter-1)->fmt_out.video;
                }
                /* TODO: one day filters in the middle of the chain might
                 * have a different fmt_out.video than fmt_render ... */
977 978 979 980
                p_vfilter->fmt_out.video = p_vout->fmt_render;

                p_vfilter->p_cfg = p_vout->p_vfilters_cfg[i];
                p_vfilter->p_module = module_Need( p_vfilter, "video filter2",
981 982
                                                   p_vout->psz_vfilters[i],
                                                   VLC_TRUE );
983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001

                if( p_vfilter->p_module )
                {
                    p_vfilter->p_owner =
                        malloc( sizeof( filter_owner_sys_t ) );
                    p_vfilter->p_owner->p_vout = p_vout;
                    p_vout->i_vfilters++;
                    msg_Dbg( p_vout, "video filter found (%s)",
                             p_vout->psz_vfilters[i] );
                }
                else
                {
                    msg_Err( p_vout, "no video filter found (%s)",
                             p_vout->psz_vfilters[i] );
                    vlc_object_detach( p_vfilter );
                    vlc_object_destroy( p_vfilter );
                }
            }
            p_vout->b_vfilter_change = VLC_FALSE;
1002
            vlc_mutex_unlock( &p_vout->vfilter_lock );
1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036
        }

        if( p_picture )
        {
            int i;
            for( i = 0; i < p_vout->i_vfilters; i++ )
            {
                picture_t *p_old = p_picture;
                p_picture  = p_vout->pp_vfilters[i]->pf_video_filter(
                                 p_vout->pp_vfilters[i], p_picture );
                if( !p_picture )
                {
                    break;
                }
                /* FIXME: this is kind of wrong
                 * if you have 2 or more vfilters and the 2nd breaks,
                 * on the next loop the 1st one will be applied again */

                /* if p_old and p_picture are the same (ie the filter
                 * worked on the old picture), then following code is
                 * still alright since i_status gets changed back to
                 * the right value */
                if( p_old->i_refcount )
                {
                    p_old->i_status = DISPLAYED_PICTURE;
                }
                else
                {
                    p_old->i_status = DESTROYED_PICTURE;
                }
                p_picture->i_status = READY_PICTURE;
            }
        }

1037 1038 1039 1040 1041 1042
        if( p_picture && p_vout->b_snapshot )
        {
            p_vout->b_snapshot = VLC_FALSE;
            vout_Snapshot( p_vout, p_picture );
        }

Sam Hocevar's avatar
 
Sam Hocevar committed
1043 1044 1045
        /*
         * Check for subpictures to display
         */
1046 1047
        if( display_date > 0 )
        {
1048
            if( !p_input )
1049
            {
1050 1051
                p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT,
                                           FIND_PARENT );
1052
            }
1053 1054
            p_subpic = spu_SortSubpictures( p_vout->p_spu, display_date,
            p_input ? var_GetBool( p_input, "state" ) == PAUSE_S : VLC_FALSE );
1055
        }
1056

Sam Hocevar's avatar
 
Sam Hocevar committed
1057 1058 1059
        /*
         * Perform rendering
         */
1060
        i_displayed++;
Sam Hocevar's avatar
 
Sam Hocevar committed
1061 1062
        p_directbuffer = vout_RenderPicture( p_vout, p_picture, p_subpic );

Sam Hocevar's avatar
 
Sam Hocevar committed
1063
        /*
1064
         * Call the plugin-specific rendering method if there is one
Sam Hocevar's avatar
 
Sam Hocevar committed
1065
         */
Gildas Bazin's avatar
 
Gildas Bazin committed
1066
        if( p_picture != NULL && p_directbuffer != NULL && p_vout->pf_render )
Sam Hocevar's avatar
 
Sam Hocevar committed
1067 1068 1069 1070 1071
        {
            /* Render the direct buffer returned by vout_RenderPicture */
            p_vout->pf_render( p_vout, p_directbuffer );
        }

Sam Hocevar's avatar
 
Sam Hocevar committed
1072 1073 1074
        /*
         * Sleep, wake up
         */
Gildas Bazin's avatar
 
Gildas Bazin committed
1075
        if( display_date != 0 && p_directbuffer != NULL )
1076
        {
1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087
            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;
            }
1088 1089
        }

Sam Hocevar's avatar
 
Sam Hocevar committed
1090 1091 1092 1093
        /* Give back change lock */
        vlc_mutex_unlock( &p_vout->change_lock );

        /* Sleep a while or until a given date */
Gildas Bazin's avatar
 
Gildas Bazin committed
1094
        if( display_date != 0 )
Sam Hocevar's avatar
Sam Hocevar committed
1095
        {
Gildas Bazin's avatar
 
Gildas Bazin committed
1096 1097 1098 1099 1100 1101
            /* 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 );
            }
1102 1103 1104
        }
        else
        {
Sam Hocevar's avatar
 
Sam Hocevar committed
1105
            msleep( VOUT_IDLE_SLEEP );
1106
        }
1107

Sam Hocevar's avatar
 
Sam Hocevar committed
1108 1109 1110 1111