video_output.c 56.4 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) 2000-2004 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.
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
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
57
 * Local prototypes
58
 *****************************************************************************/
59 60 61 62 63
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
64

65
static void     AspectRatio       ( int, int *, int * );
66 67
static int      BinaryLog         ( uint32_t );
static void     MaskToShift       ( int *, int *, uint32_t );
Michel Kaempf's avatar
Michel Kaempf committed
68

Gildas Bazin's avatar
 
Gildas Bazin committed
69
/* Object variables callbacks */
Gildas Bazin's avatar
 
Gildas Bazin committed
70 71
static int DeinterlaceCallback( vlc_object_t *, char const *,
                                vlc_value_t, vlc_value_t, void * );
72 73
static int FilterCallback( vlc_object_t *, char const *,
                           vlc_value_t, vlc_value_t, void * );
74 75
static int VideoFilter2Callback( vlc_object_t *, char const *,
                                 vlc_value_t, vlc_value_t, void * );
Gildas Bazin's avatar
 
Gildas Bazin committed
76

77 78 79
/* From vout_intf.c */
int vout_Snapshot( vout_thread_t *, picture_t * );

80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106
/* Video filter2 parsing */
static int ParseVideoFilter2Chain( vout_thread_t *, char * );
static void RemoveVideoFilters2( vout_thread_t *p_vout );

/*****************************************************************************
 * 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 );
}

107
/*****************************************************************************
108 109 110 111 112
 * 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.
 *****************************************************************************/
113 114
vout_thread_t *__vout_Request( vlc_object_t *p_this, vout_thread_t *p_vout,
                               video_format_t *p_fmt )
115
{
116
    if( !p_fmt )
117
    {
118
        /* Reattach video output to playlist before bailing out */
119 120
        if( p_vout )
        {
121
            playlist_t  *p_playlist = pl_Yield( p_this );
122 123 124 125
            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 );
126 127 128 129 130 131 132 133 134 135 136 137 138 139 140
        }
        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 )
        {
141 142 143 144 145 146
            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
147
            {
148 149
                vlc_object_release( p_vout );
                p_vout = NULL;
Gildas Bazin's avatar
 
Gildas Bazin committed
150
            }
151 152
            if( p_vout )
                vlc_object_detach( p_vout );    /* Remove it from the GC */
153
            vlc_mutex_unlock( &p_playlist->gc_lock );
Clément Stenac's avatar
Oups  
Clément Stenac committed
154
            pl_Release( p_this );
155 156 157 158 159 160
        }
    }

    /* If we now have a video output, check it has the right properties */
    if( p_vout )
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
161
        char *psz_filter_chain;
162
        vlc_value_t val;
Gildas Bazin's avatar
 
Gildas Bazin committed
163

164
        /* We don't directly check for the "vout-filter" variable for obvious
Gildas Bazin's avatar
 
Gildas Bazin committed
165 166 167
         * performance reasons. */
        if( p_vout->b_filter_change )
        {
168
            var_Get( p_vout, "vout-filter", &val );
169
            psz_filter_chain = val.psz_string;
Gildas Bazin's avatar
 
Gildas Bazin committed
170 171 172 173 174 175 176 177 178 179 180 181

            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;
            }

182
            if( !psz_filter_chain && !p_vout->psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
183 184 185 186
            {
                p_vout->b_filter_change = VLC_FALSE;
            }

Gildas Bazin's avatar
 
Gildas Bazin committed
187
            if( psz_filter_chain ) free( psz_filter_chain );
Gildas Bazin's avatar
 
Gildas Bazin committed
188 189
        }

190 191 192
        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 ) ||
193
            ( p_vout->fmt_render.i_aspect != p_fmt->i_aspect ) ||
Gildas Bazin's avatar
 
Gildas Bazin committed
194
            p_vout->b_filter_change )
195 196 197 198 199 200 201 202 203
        {
            /* 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. */
204
            spu_Attach( p_vout->p_spu, p_this, VLC_TRUE );
205 206 207 208 209 210 211 212 213
            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" );

214
        p_vout = vout_Create( p_this, p_fmt );
215 216 217 218 219 220 221
    }

    return p_vout;
}

/*****************************************************************************
 * vout_Create: creates a new video output thread
222
 *****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
223 224
 * This function creates a new video output thread, and returns a pointer
 * to its description. On error, it returns NULL.
225
 *****************************************************************************/
226
vout_thread_t * __vout_Create( vlc_object_t *p_parent, video_format_t *p_fmt )
Michel Kaempf's avatar
Michel Kaempf committed
227
{
Gildas Bazin's avatar
 
Gildas Bazin committed
228 229 230
    vout_thread_t  * p_vout;                            /* thread descriptor */
    input_thread_t * p_input_thread;
    int              i_index;                               /* loop variable */
231
    char           * psz_plugin = NULL;
232
    vlc_value_t      val, text;
Michel Kaempf's avatar
Michel Kaempf committed
233

234 235
    unsigned int i_width = p_fmt->i_width;
    unsigned int i_height = p_fmt->i_height;
236 237 238
    vlc_fourcc_t i_chroma = p_fmt->i_chroma;
    unsigned int i_aspect = p_fmt->i_aspect;

239 240 241 242
    config_chain_t *p_cfg;
    char *psz_parser;
    char *psz_name;

243
    /* Allocate descriptor */
244
    p_vout = vlc_object_create( p_parent, VLC_OBJECT_VOUT );
245
    if( p_vout == NULL )
Michel Kaempf's avatar
Michel Kaempf committed
246
    {
247
        msg_Err( p_parent, "out of memory" );
248
        return NULL;
Michel Kaempf's avatar
Michel Kaempf committed
249
    }
250

251
    /* Initialize pictures - translation tables and functions
Gildas Bazin's avatar
 
Gildas Bazin committed
252
     * will be initialized later in InitThread */
253
    for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++)
Gildas Bazin's avatar
 
Gildas Bazin committed
254 255 256 257 258
    {
        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;
259
        p_vout->p_picture[i_index].b_slow   = 0;
Gildas Bazin's avatar
 
Gildas Bazin committed
260 261 262 263 264 265 266
    }

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

    /* Initialize the rendering heap */
    I_RENDERPICTURES = 0;
267 268 269

    vlc_ureduce( &p_fmt->i_sar_num, &p_fmt->i_sar_den,
                 p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
270 271
    p_vout->fmt_render        = *p_fmt;   /* FIXME palette */
    p_vout->fmt_in            = *p_fmt;   /* FIXME palette */
272

Gildas Bazin's avatar
 
Gildas Bazin committed
273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303
    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
304
    p_vout->i_alignment  = 0;
Gildas Bazin's avatar
 
Gildas Bazin committed
305 306 307
    p_vout->render_time  = 10;
    p_vout->c_fps_samples = 0;
    p_vout->b_filter_change = 0;
308
    p_vout->pf_control = 0;
309
    p_vout->p_parent_intf = 0;
310
    p_vout->i_par_num = p_vout->i_par_den = 1;
Gildas Bazin's avatar
 
Gildas Bazin committed
311 312 313 314

    /* Initialize locks */
    vlc_mutex_init( p_vout, &p_vout->picture_lock );
    vlc_mutex_init( p_vout, &p_vout->change_lock );
315
    vlc_mutex_init( p_vout, &p_vout->vfilter_lock );
Gildas Bazin's avatar
 
Gildas Bazin committed
316

317 318 319 320 321 322 323
    /* 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 );

324
    /* Initialize subpicture unit */
325
    p_vout->p_spu = spu_Create( p_vout );
326
    spu_Attach( p_vout->p_spu, p_parent, VLC_TRUE );
327

Gildas Bazin's avatar
 
Gildas Bazin committed
328 329 330
    /* Attach the new object now so we can use var inheritance below */
    vlc_object_attach( p_vout, p_parent );

331 332
    spu_Init( p_vout->p_spu );

333 334
    /* Take care of some "interface/control" related initialisations */
    vout_IntfInit( p_vout );
Gildas Bazin's avatar
 
Gildas Bazin committed
335

Gildas Bazin's avatar
 
Gildas Bazin committed
336 337 338
    /* 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
339
    {
340
        /* Look for the default filter configuration */
341 342
        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
343
        p_vout->psz_filter_chain = val.psz_string;
344 345 346 347 348 349 350

        /* 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
351 352 353 354 355 356
    }
    else
    {
        /* continue the parent's filter chain */
        char *psz_end;

357
        psz_end = strchr( ((vout_thread_t *)p_parent)->psz_filter_chain, ':' );
Gildas Bazin's avatar
 
Gildas Bazin committed
358 359 360
        if( psz_end && *(psz_end+1) )
            p_vout->psz_filter_chain = strdup( psz_end+1 );
        else p_vout->psz_filter_chain = NULL;
361 362 363 364

        /* 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
365 366
    }

367 368 369 370
    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
371
    /* Choose the video output module */
Gildas Bazin's avatar
 
Gildas Bazin committed
372
    if( !p_vout->psz_filter_chain || !*p_vout->psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
373
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
374 375 376
        var_Create( p_vout, "vout", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
        var_Get( p_vout, "vout", &val );
        psz_plugin = val.psz_string;
Gildas Bazin's avatar
 
Gildas Bazin committed
377
    }
378
#if 0
Gildas Bazin's avatar
 
Gildas Bazin committed
379 380 381 382 383 384
    else
    {
        /* the filter chain is a string list of filters separated by double
         * colons */
        char *psz_end;

385
        psz_end = strchr( p_vout->psz_filter_chain, ':' );
Gildas Bazin's avatar
 
Gildas Bazin committed
386 387 388 389
        if( psz_end )
            psz_plugin = strndup( p_vout->psz_filter_chain,
                                  psz_end - p_vout->psz_filter_chain );
        else psz_plugin = strdup( p_vout->psz_filter_chain );
Sam Hocevar's avatar
 
Sam Hocevar committed
390
    }
391
#endif
Sam Hocevar's avatar
 
Sam Hocevar committed
392

Gildas Bazin's avatar
 
Gildas Bazin committed
393
    /* Create the vout thread */
394 395 396 397 398
    psz_parser = p_vout->psz_filter_chain;
    printf("psz_parser: %s\n", psz_parser );
    psz_parser = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
    printf("psz_parser: %s\n", psz_parser );
    p_vout->p_cfg = p_cfg;
Gildas Bazin's avatar
 
Gildas Bazin committed
399
    p_vout->p_module = module_Need( p_vout,
Gildas Bazin's avatar
 
Gildas Bazin committed
400
        ( p_vout->psz_filter_chain && *p_vout->psz_filter_chain ) ?
401
        "video filter" : "video output", psz_name, 0 );
Sam Hocevar's avatar
 
Sam Hocevar committed
402

Gildas Bazin's avatar
 
Gildas Bazin committed
403
    if( psz_plugin ) free( psz_plugin );
Sam Hocevar's avatar
 
Sam Hocevar committed
404 405
    if( p_vout->p_module == NULL )
    {
406
        msg_Err( p_vout, "no suitable vout module" );
407
        vlc_object_detach( p_vout );
408
        vlc_object_destroy( p_vout );
409
        return NULL;
Sam Hocevar's avatar
 
Sam Hocevar committed
410
    }
Gildas Bazin's avatar
 
Gildas Bazin committed
411

Gildas Bazin's avatar
 
Gildas Bazin committed
412
    /* Create a few object variables for interface interaction */
Gildas Bazin's avatar
 
Gildas Bazin committed
413 414 415
    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 );
416
    val.psz_string = (char *)""; text.psz_string = _("Disable");
Gildas Bazin's avatar
 
Gildas Bazin committed
417
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
418
    val.psz_string = (char *)"discard"; text.psz_string = _("Discard");
Gildas Bazin's avatar
 
Gildas Bazin committed
419
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
420
    val.psz_string = (char *)"blend"; text.psz_string = _("Blend");
Gildas Bazin's avatar
 
Gildas Bazin committed
421
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
422
    val.psz_string = (char *)"mean"; text.psz_string = _("Mean");
Gildas Bazin's avatar
 
Gildas Bazin committed
423
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
424
    val.psz_string = (char *)"bob"; text.psz_string = _("Bob");
Gildas Bazin's avatar
 
Gildas Bazin committed
425
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
426
    val.psz_string = (char *)"linear"; text.psz_string = _("Linear");
Gildas Bazin's avatar
 
Gildas Bazin committed
427
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
428
    val.psz_string = (char *)"x"; text.psz_string = (char *)"X";
429 430
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );

Gildas Bazin's avatar
 
Gildas Bazin committed
431 432 433
    if( var_Get( p_vout, "deinterlace-mode", &val ) == VLC_SUCCESS )
    {
        var_Set( p_vout, "deinterlace", val );
Gildas Bazin's avatar
 
Gildas Bazin committed
434
        if( val.psz_string ) free( val.psz_string );
Gildas Bazin's avatar
 
Gildas Bazin committed
435
    }
Gildas Bazin's avatar
 
Gildas Bazin committed
436 437
    var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );

438

439
    var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
440
    text.psz_string = _("Filters");
441 442
    var_Change( p_vout, "vout-filter", VLC_VAR_SETTEXT, &text, NULL );
    var_AddCallback( p_vout, "vout-filter", FilterCallback, NULL );
443

Gildas Bazin's avatar
 
Gildas Bazin committed
444 445
    /* Calculate delay created by internal caching */
    p_input_thread = (input_thread_t *)vlc_object_find( p_vout,
Gildas Bazin's avatar
 
Gildas Bazin committed
446
                                           VLC_OBJECT_INPUT, FIND_ANYWHERE );
Gildas Bazin's avatar
 
Gildas Bazin committed
447 448
    if( p_input_thread )
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
449
        p_vout->i_pts_delay = p_input_thread->i_pts_delay;
Gildas Bazin's avatar
 
Gildas Bazin committed
450 451 452 453
        vlc_object_release( p_input_thread );
    }
    else
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
454
        p_vout->i_pts_delay = DEFAULT_PTS_DELAY;
Gildas Bazin's avatar
 
Gildas Bazin committed
455 456
    }

457
    if( vlc_thread_create( p_vout, "video output", RunThread,
Gildas Bazin's avatar
 
Gildas Bazin committed
458
                           VLC_THREAD_PRIORITY_OUTPUT, VLC_TRUE ) )
Michel Kaempf's avatar
Michel Kaempf committed
459
    {
460
        msg_Err( p_vout, "out of memory" );
461
        module_Unneed( p_vout, p_vout->p_module );
462 463 464 465 466 467 468 469 470 471 472
        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 */
        p_vout->b_die = VLC_TRUE;
473

474 475 476
        vlc_thread_join( p_vout );

        vlc_object_detach( p_vout );
477 478
        vlc_object_destroy( p_vout );
        return NULL;
479
    }
Michel Kaempf's avatar
Michel Kaempf committed
480

481
    return p_vout;
Michel Kaempf's avatar
Michel Kaempf committed
482 483
}

484
/*****************************************************************************
485
 * vout_Destroy: destroys a previously created video output
486 487
 *****************************************************************************
 * Destroy a terminated thread.
Michel Kaempf's avatar
Michel Kaempf committed
488
 * The function will request a destruction of the specified thread. If pi_error
489
 * is NULL, it will return once the thread is destroyed. Else, it will be
Michel Kaempf's avatar
Michel Kaempf committed
490
 * update using one of the THREAD_* constants.
491
 *****************************************************************************/
492
void vout_Destroy( vout_thread_t *p_vout )
Clément Stenac's avatar
Clément Stenac committed
493
{
494
    vout_thread_t *p_another_vout;
495
    playlist_t *p_playlist = pl_Yield( p_vout );
Clément Stenac's avatar
Clément Stenac committed
496

Michel Kaempf's avatar
Michel Kaempf committed
497
    /* Request thread destruction */
498
    p_vout->b_die = VLC_TRUE;
499
    vlc_thread_join( p_vout );
Michel Kaempf's avatar
Michel Kaempf committed
500

501 502
    var_Destroy( p_vout, "intf-change" );

Gildas Bazin's avatar
 
Gildas Bazin committed
503 504
    if( p_vout->psz_filter_chain ) free( p_vout->psz_filter_chain );

505 506
    config_ChainDestroy( p_vout->p_cfg );

507
    /* Free structure */
508
    vlc_object_destroy( p_vout );
509 510 511 512 513
#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 */
514 515 516
    p_another_vout = vlc_object_find( p_playlist,
                                      VLC_OBJECT_VOUT, FIND_ANYWHERE );
    if( p_another_vout == NULL )
517
    {
518 519 520 521 522 523 524
        vlc_value_t val;
        val.b_bool = VLC_TRUE;
        var_Set( p_playlist, "intf-show", val );
    }
    else
    {
        vlc_object_release( p_another_vout );
525
    }
526
#endif
527
    vlc_object_release( p_playlist );
Michel Kaempf's avatar
Michel Kaempf committed
528 529
}

530
/*****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
531
 * InitThread: initialize video output thread
532
 *****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
533 534 535
 * 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.
536
 *****************************************************************************/
Sam Hocevar's avatar
 
Sam Hocevar committed
537
static int InitThread( vout_thread_t *p_vout )
Vincent Seguin's avatar
Vincent Seguin committed
538
{
539
    int i, i_aspect_x, i_aspect_y;
Sam Hocevar's avatar
 
Sam Hocevar committed
540

Sam Hocevar's avatar
 
Sam Hocevar committed
541 542 543 544
    vlc_mutex_lock( &p_vout->change_lock );

#ifdef STATS
    p_vout->c_loops = 0;
Vincent Seguin's avatar
Vincent Seguin committed
545 546
#endif

Sam Hocevar's avatar
 
Sam Hocevar committed
547
    /* Initialize output method, it allocates direct buffers for us */
Sam Hocevar's avatar
 
Sam Hocevar committed
548
    if( p_vout->pf_init( p_vout ) )
Vincent Seguin's avatar
Vincent Seguin committed
549
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
550
        vlc_mutex_unlock( &p_vout->change_lock );
551
        return VLC_EGENERIC;
Sam Hocevar's avatar
 
Sam Hocevar committed
552 553
    }

Sam Hocevar's avatar
 
Sam Hocevar committed
554
    if( !I_OUTPUTPICTURES )
Sam Hocevar's avatar
 
Sam Hocevar committed
555
    {
556 557
        msg_Err( p_vout, "plugin was unable to allocate at least "
                         "one direct buffer" );
Sam Hocevar's avatar
 
Sam Hocevar committed
558
        p_vout->pf_end( p_vout );
Sam Hocevar's avatar
 
Sam Hocevar committed
559
        vlc_mutex_unlock( &p_vout->change_lock );
560
        return VLC_EGENERIC;
561
    }
Vincent Seguin's avatar
Vincent Seguin committed
562

Gildas Bazin's avatar
 
Gildas Bazin committed
563 564 565 566 567 568 569 570 571
    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;
    }

572
    msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
Sam Hocevar's avatar
 
Sam Hocevar committed
573

574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616
    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
617 618
    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 );
619 620

    AspectRatio( p_vout->fmt_out.i_aspect, &i_aspect_x, &i_aspect_y );
Sam Hocevar's avatar
 
Sam Hocevar committed
621

622 623
    msg_Dbg( p_vout, "picture out %ix%i (%i,%i,%ix%i), "
             "chroma %4.4s, ar %i:%i, sar %i:%i",
624
             p_vout->fmt_out.i_width, p_vout->fmt_out.i_height,
625 626 627 628 629
             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,
630
             p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den );
Sam Hocevar's avatar
 
Sam Hocevar committed
631

Sam Hocevar's avatar
 
Sam Hocevar committed
632 633 634 635 636 637 638 639
    /* 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
640
    /* Check whether we managed to create direct buffers similar to
641
     * the render buffers, ie same size and chroma */
Sam Hocevar's avatar
 
Sam Hocevar committed
642 643
    if( ( p_vout->output.i_width == p_vout->render.i_width )
     && ( p_vout->output.i_height == p_vout->render.i_height )
644
     && ( vout_ChromaCmp( p_vout->output.i_chroma, p_vout->render.i_chroma ) ) )
Sam Hocevar's avatar
 
Sam Hocevar committed
645
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
646 647 648 649
        /* 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
650 651
        p_vout->b_direct = 1;

Sam Hocevar's avatar
 
Sam Hocevar committed
652 653
        for( i = 1; i < VOUT_MAX_PICTURES; i++ )
        {
Gildas Bazin's avatar
 
Gildas Bazin committed
654 655 656 657 658 659 660 661
            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
662 663 664
            PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
            I_RENDERPICTURES++;
        }
Gildas Bazin's avatar
 
Gildas Bazin committed
665 666 667 668

        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
669 670 671
    }
    else
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
672 673 674
        /* 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
675 676
        p_vout->b_direct = 0;

Sam Hocevar's avatar
 
Sam Hocevar committed
677
        /* Choose the best module */
Gildas Bazin's avatar
 
Gildas Bazin committed
678
        p_vout->chroma.p_module = module_Need( p_vout, "chroma", NULL, 0 );
Sam Hocevar's avatar
 
Sam Hocevar committed
679

Sam Hocevar's avatar
 
Sam Hocevar committed
680 681
        if( p_vout->chroma.p_module == NULL )
        {
682
            msg_Err( p_vout, "no chroma module for %4.4s to %4.4s",
683 684
                     (char*)&p_vout->render.i_chroma,
                     (char*)&p_vout->output.i_chroma );
Sam Hocevar's avatar
 
Sam Hocevar committed
685 686
            p_vout->pf_end( p_vout );
            vlc_mutex_unlock( &p_vout->change_lock );
687
            return VLC_EGENERIC;
Sam Hocevar's avatar
 
Sam Hocevar committed
688
        }
Sam Hocevar's avatar
 
Sam Hocevar committed
689

Gildas Bazin's avatar
 
Gildas Bazin committed
690 691 692 693
        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
694 695

        /* Append render buffers after the direct buffers */
Sam Hocevar's avatar
 
Sam Hocevar committed
696
        for( i = I_OUTPUTPICTURES; i < 2 * VOUT_MAX_PICTURES; i++ )
Sam Hocevar's avatar
 
Sam Hocevar committed
697 698 699
        {
            PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
            I_RENDERPICTURES++;
Gildas Bazin's avatar
 
Gildas Bazin committed
700 701 702 703

            /* Check if we have enough render pictures */
            if( I_RENDERPICTURES == VOUT_MAX_PICTURES )
                break;
Sam Hocevar's avatar
 
Sam Hocevar committed
704 705
        }
    }
Vincent Seguin's avatar
Vincent Seguin committed
706

Sam Hocevar's avatar
 
Sam Hocevar committed
707 708 709 710 711 712 713 714 715 716 717
    /* 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;
    }

718
/* XXX XXX mark thread ready */
719
    return VLC_SUCCESS;
Vincent Seguin's avatar
Vincent Seguin committed
720 721
}

722
/*****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
723
 * RunThread: video output thread
724
 *****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
725 726 727
 * 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.
728
 *****************************************************************************/
Sam Hocevar's avatar
 
Sam Hocevar committed
729
static void RunThread( vout_thread_t *p_vout)
Vincent Seguin's avatar
Vincent Seguin committed
730
{
Sam Hocevar's avatar
 
Sam Hocevar committed
731
    int             i_index;                                /* index in heap */
732
    int             i_idle_loops = 0;  /* loops without displaying a picture */
Sam Hocevar's avatar
 
Sam Hocevar committed
733 734 735 736
    mtime_t         current_date;                            /* current date */
    mtime_t         display_date;                            /* display date */

    picture_t *     p_picture;                            /* picture pointer */
737
    picture_t *     p_last_picture = NULL;                   /* last picture */
Sam Hocevar's avatar
 
Sam Hocevar committed
738 739
    picture_t *     p_directbuffer;              /* direct buffer to display */

740
    subpicture_t *  p_subpic = NULL;                   /* subpicture pointer */
Sam Hocevar's avatar
 
Sam Hocevar committed
741

742
    input_thread_t *p_input = NULL ;           /* Parent input, if it exists */
743

744 745 746
    vlc_value_t     val;
    vlc_bool_t      b_drop_late;

747 748
    int             i_displayed = 0, i_lost = 0, i_loops = 0;

Sam Hocevar's avatar
 
Sam Hocevar committed
749 750 751 752
    /*
     * Initialize thread
     */
    p_vout->b_error = InitThread( p_vout );
Gildas Bazin's avatar
 
Gildas Bazin committed
753

754 755 756 757
    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
758 759 760
    /* signal the creation of the vout */
    vlc_thread_ready( p_vout );

Sam Hocevar's avatar
 
Sam Hocevar committed
761 762 763
    if( p_vout->b_error )
    {
        /* Destroy thread structures allocated by Create and InitThread */
764
        DestroyThread( p_vout );
Sam Hocevar's avatar
 
Sam Hocevar committed
765 766
        return;
    }
767

768
    /*
Sam Hocevar's avatar
Sam Hocevar committed
769
     * Main loop - it is not executed if an error occurred during
Sam Hocevar's avatar
 
Sam Hocevar committed
770
     * initialization
771
     */
Sam Hocevar's avatar
 
Sam Hocevar committed
772
    while( (!p_vout->b_die) && (!p_vout->b_error) )
773
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
774
        /* Initialize loop variables */
775
        p_picture = NULL;
Sam Hocevar's avatar
 
Sam Hocevar committed
776 777
        display_date = 0;
        current_date = mdate();
Sam Hocevar's avatar
 
Sam Hocevar committed
778

779 780 781 782 783
        if( p_input && p_input->b_die )
        {
            vlc_object_release( p_input );
            p_input = NULL;
        }
784

785 786 787
        i_loops++;
        if( i_loops % 20 == 0 )
        {
788 789 790 791 792
            if( !p_input )
            {
                p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT,
                                           FIND_PARENT );
            }
793 794
            if( p_input )
            {
Clément Stenac's avatar
Clément Stenac committed
795 796
                vlc_mutex_lock( &p_input->p->counters.counters_lock );
                stats_UpdateInteger( p_vout, p_input->p->counters.p_lost_pictures,
797 798
                                     i_lost , NULL);
                stats_UpdateInteger( p_vout,
Clément Stenac's avatar
Clément Stenac committed
799
                                     p_input->p->counters.p_displayed_pictures,
800 801
                                     i_displayed , NULL);
                i_displayed = i_lost = 0;
Clément Stenac's avatar
Clément Stenac committed
802
                vlc_mutex_unlock( &p_input->p->counters.counters_lock );
803 804
            }
        }
805
#if 0
Sam Hocevar's avatar
 
Sam Hocevar committed
806 807
        p_vout->c_loops++;
        if( !(p_vout->c_loops % VOUT_STATS_NB_LOOPS) )
808
        {
809 810
            msg_Dbg( p_vout, "picture heap: %d/%d",
                     I_RENDERPICTURES, p_vout->i_heap_size );
Sam Hocevar's avatar
 
Sam Hocevar committed
811
        }
812
#endif
Sam Hocevar's avatar
 
Sam Hocevar committed
813 814

        /*
815 816 817
         * Find the picture to display (the one with the earliest date).
         * This operation does not need lock, since only READY_PICTUREs
         * are handled. */
818
        for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
Sam Hocevar's avatar
 
Sam Hocevar committed
819
        {
Sam Hocevar's avatar
 
Sam Hocevar committed
820 821 822
            if( (PP_RENDERPICTURE[i_index]->i_status == READY_PICTURE)
                && ( (p_picture == NULL) ||
                     (PP_RENDERPICTURE[i_index]->date < display_date) ) )
823
            {
Sam Hocevar's avatar
 
Sam Hocevar committed
824
                p_picture = PP_RENDERPICTURE[i_index];
Sam Hocevar's avatar
 
Sam Hocevar committed
825
                display_date = p_picture->date;
826 827
            }
        }
Sam Hocevar's avatar
 
Sam Hocevar committed
828

829
        if( p_picture )
830
        {
831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846
            /* 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;
                    }
                }
            }
847

848 849 850 851 852 853 854 855 856 857 858 859 860 861
            /* 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 );
862
                p_last_picture = NULL;
863 864
            }

Sam Hocevar's avatar
 
Sam Hocevar committed
865 866 867 868
            /* Compute FPS rate */
            p_vout->p_fps_sample[ p_vout->c_fps_samples++ % VOUT_FPS_SAMPLES ]
                = display_date;

869
            if( !p_picture->b_force &&
870
                p_picture != p_last_picture &&
871
                display_date < current_date + p_vout->render_time &&
872
                b_drop_late )
Sam Hocevar's avatar
 
Sam Hocevar committed
873 874 875 876 877 878 879 880 881 882 883 884 885 886
            {
                /* 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
887
                    p_vout->i_heap_size--;
Sam Hocevar's avatar
 
Sam Hocevar committed
888
                }
Gildas Bazin's avatar
 
Gildas Bazin committed
889
                msg_Warn( p_vout, "late picture skipped ("I64Fd")",
890
                                  current_date - display_date );
891
                i_lost++;
892 893 894 895
                vlc_mutex_unlock( &p_vout->picture_lock );

                continue;
            }
896

Gildas Bazin's avatar
 
Gildas Bazin committed
897
            if( display_date >
898
                current_date + p_vout->i_pts_delay + VOUT_BOGUS_DELAY )
899 900 901 902 903 904 905 906 907 908 909 910 911 912 913
            {
                /* 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--;
                }
914
                i_lost++;
915
                msg_Warn( p_vout, "vout warning: early picture skipped "
Gildas Bazin's avatar
 
Gildas Bazin committed
916 917
                          "("I64Fd")", display_date - current_date
                          - p_vout->i_pts_delay );
Sam Hocevar's avatar
 
Sam Hocevar committed
918 919 920 921
                vlc_mutex_unlock( &p_vout->picture_lock );

                continue;
            }
922

923
            if( display_date > current_date + VOUT_DISPLAY_DELAY )
Sam Hocevar's avatar
 
Sam Hocevar committed
924 925 926 927 928 929 930 931
            {
                /* 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;
            }
932 933
            else if( p_picture == p_last_picture )
            {
934 935
                /* We are asked to repeat the previous picture, but we first
                 * wait for a couple of idle loops */
936 937 938 939 940 941 942
                if( i_idle_loops < 4 )
                {
                    p_picture    = NULL;
                    display_date = 0;
                }
                else
                {
943 944 945
                    /* 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;
946 947 948 949 950 951 952
                }
            }
        }

        if( p_picture == NULL )
        {
            i_idle_loops++;
953 954
        }

955 956 957 958
        /* Video Filter2 stuff */
        if( p_vout->b_vfilter_change == VLC_TRUE )
        {
            int i;
959
            vlc_mutex_lock( &p_vout->vfilter_lock );
960 961 962 963 964 965 966 967 968 969 970 971
            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
972 973 974 975 976 977 978 979 980 981
                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 ... */
982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005
                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",
                                                 p_vout->psz_vfilters[i], 0 );

                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;
1006
            vlc_mutex_unlock( &p_vout->vfilter_lock );
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 1037 1038 1039 1040
        }

        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;
            }
        }

1041 1042 1043 1044 1045 1046
        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
1047 1048 1049
        /*
         * Check for subpictures to display
         */
1050 1051
        if( display_date > 0 )
        {
1052
            if( !p_input )
1053
            {
1054 1055
                p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT,
                                           FIND_PARENT );
1056
            }
1057 1058
            p_subpic = spu_SortSubpictures( p_vout->p_spu, display_date,
            p_input ? var_GetBool( p_input, "state" ) == PAUSE_S : VLC_FALSE );
1059
        }
1060

Sam Hocevar's avatar
 
Sam Hocevar committed
1061 1062 1063
        /*
         * Perform rendering
         */
1064
        i_displayed++;
Sam Hocevar's avatar
 
Sam Hocevar committed
1065 1066
        p_directbuffer = vout_RenderPicture( p_vout, p_picture, p_subpic );

Sam Hocevar's avatar
 
Sam Hocevar committed
1067
        /*
1068
         * Call the plugin-specific rendering method if there is one
Sam Hocevar's avatar
 
Sam Hocevar committed
1069
         */
Gildas Bazin's avatar
 
Gildas Bazin committed
1070
        if( p_picture != NULL && p_directbuffer != NULL && p_vout->pf_render )
Sam Hocevar's avatar
 
Sam Hocevar committed
1071 1072 1073 1074 1075
        {
            /* Render the direct buffer returned by vout_RenderPicture */
            p_vout->pf_render( p_vout, p_directbuffer );
        }

Sam Hocevar's avatar
 
Sam Hocevar committed
1076 1077 1078
        /*
         * Sleep, wake up
         */
Gildas Bazin's avatar
 
Gildas Bazin committed
1079
        if( display_date != 0 && p_directbuffer != NULL )
1080
        {
1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091
            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;
            }
1092 1093
        }

Sam Hocevar's avatar
 
Sam Hocevar committed
1094 1095 1096 1097
        /* 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
1098
        if( display_date != 0 )
1099
        {
Gildas Bazin's avatar
 
Gildas Bazin committed
1100 1101 1102 1103 1104 1105
            /* 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 );
            }
1106 1107 1108
        }
        else
        {
Sam Hocevar's avatar
 
Sam Hocevar committed
1109
            msleep( VOUT_IDLE_SLEEP );
1110
        }
1111

Sam Hocevar's avatar
 
Sam Hocevar committed
1112 1113 1114 1115 1116 1117 1118
        /* On awakening, take back lock and send immediately picture
         * to display. */
        vlc_mutex_lock( &p_vout->change_lock );

        /*