video_output.c 57.2 KB
Newer Older
1
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
2
 * video_output.c : video output thread
3
 *
Michel Kaempf's avatar
Michel Kaempf committed
4 5
 * This module describes the programming interface for video output threads.
 * It includes functions allowing to open a new thread, send pictures to a
6 7
 * thread, and destroy a previously oppened video output thread.
 *****************************************************************************
8
 * Copyright (C) 2000-2007 the VideoLAN team
Gildas Bazin's avatar
Gildas Bazin committed
9
 * $Id$
10
 *
Sam Hocevar's avatar
 
Sam Hocevar committed
11
 * Authors: Vincent Seguin <seguin@via.ecp.fr>
12
 *          Gildas Bazin <gbazin@videolan.org>
13 14 15 16 17
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
Sam Hocevar's avatar
Sam Hocevar committed
18
 *
19 20
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 22
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
23
 *
24 25
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
Antoine Cellerier's avatar
Antoine Cellerier committed
26
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
27
 *****************************************************************************/
Michel Kaempf's avatar
Michel Kaempf committed
28

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

36
#include <vlc_common.h>
37

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

Sam Hocevar's avatar
 
Sam Hocevar committed
41

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

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

Clément Stenac's avatar
Clément Stenac committed
48 49
#include <vlc_filter.h>
#include <vlc_osd.h>
Laurent Aimar's avatar
Laurent Aimar committed
50
#include <assert.h>
51

52
#if defined( __APPLE__ )
Clément Stenac's avatar
Clément Stenac committed
53
/* Include darwin_specific.h here if needed */
54 55
#endif

Clément Stenac's avatar
Clément Stenac committed
56 57
/** FIXME This is quite ugly but needed while we don't have counters
 * helpers */
58
//#include "input/input_internal.h"
Clément Stenac's avatar
Clément Stenac committed
59

60 61
#include <libvlc.h>
#include <vlc_input.h>
62
#include "vout_pictures.h"
Laurent Aimar's avatar
Laurent Aimar committed
63
#include "vout_internal.h"
64

65
/*****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
66
 * Local prototypes
67
 *****************************************************************************/
68
static int      InitThread        ( vout_thread_t * );
69
static void*    RunThread         ( vlc_object_t *  );
70
static void     ErrorThread       ( vout_thread_t * );
Laurent Aimar's avatar
Laurent Aimar committed
71
static void     CleanThread       ( vout_thread_t * );
72
static void     EndThread         ( vout_thread_t * );
Sam Hocevar's avatar
 
Sam Hocevar committed
73

74
static void     AspectRatio       ( int, int *, int * );
Michel Kaempf's avatar
Michel Kaempf committed
75

Laurent Aimar's avatar
Laurent Aimar committed
76
static void VideoFormatImportRgb( video_format_t *, const picture_heap_t * );
77 78
static void PictureHeapFixRgb( picture_heap_t * );

79 80
static void     vout_Destructor   ( vlc_object_t * p_this );

Gildas Bazin's avatar
 
Gildas Bazin committed
81
/* Object variables callbacks */
Gildas Bazin's avatar
 
Gildas Bazin committed
82 83
static int DeinterlaceCallback( vlc_object_t *, char const *,
                                vlc_value_t, vlc_value_t, void * );
84 85
static int FilterCallback( vlc_object_t *, char const *,
                           vlc_value_t, vlc_value_t, void * );
86 87
static int VideoFilter2Callback( vlc_object_t *, char const *,
                                 vlc_value_t, vlc_value_t, void * );
Gildas Bazin's avatar
 
Gildas Bazin committed
88

89 90 91
/* From vout_intf.c */
int vout_Snapshot( vout_thread_t *, picture_t * );

92 93 94
/* Display media title in OSD */
static void DisplayTitleOnOSD( vout_thread_t *p_vout );

95 96 97 98 99
/*****************************************************************************
 * Video Filter2 functions
 *****************************************************************************/
static picture_t *video_new_buffer_filter( filter_t *p_filter )
{
100
    vout_thread_t *p_vout = (vout_thread_t*)p_filter->p_owner;
101
    picture_t *p_picture = vout_CreatePicture( p_vout, 0, 0, 0 );
102

103
    p_picture->i_status = READY_PICTURE;
104 105 106 107 108 109

    return p_picture;
}

static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
{
110 111
    vout_thread_t *p_vout = (vout_thread_t*)p_filter->p_owner;

112 113 114
    vlc_mutex_lock( &p_vout->picture_lock );
    vout_UsePictureLocked( p_vout, p_pic );
    vlc_mutex_unlock( &p_vout->picture_lock );
115 116 117 118 119 120 121 122
}

static int video_filter_buffer_allocation_init( filter_t *p_filter, void *p_data )
{
    p_filter->pf_vout_buffer_new = video_new_buffer_filter;
    p_filter->pf_vout_buffer_del = video_del_buffer_filter;
    p_filter->p_owner = p_data; /* p_vout */
    return VLC_SUCCESS;
123 124
}

125
/*****************************************************************************
126 127 128 129 130
 * 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.
 *****************************************************************************/
131 132
vout_thread_t *__vout_Request( vlc_object_t *p_this, vout_thread_t *p_vout,
                               video_format_t *p_fmt )
133
{
134
    const bool b_vout_provided = p_vout != NULL;
135
    if( !p_fmt )
136
    {
137 138 139
        /* Video output is no longer used.
         * TODO: support for reusing video outputs with proper _thread-safe_
         * reference handling. */
140
        if( p_vout )
141
            vout_CloseAndRelease( p_vout );
142 143 144 145 146 147
        return NULL;
    }

    /* If a video output was provided, lock it, otherwise look for one. */
    if( p_vout )
    {
148
        vlc_object_hold( p_vout );
149 150
    }

151
    /* TODO: find a suitable unused video output */
152 153 154 155

    /* If we now have a video output, check it has the right properties */
    if( p_vout )
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
156
        char *psz_filter_chain;
157
        vlc_value_t val;
Gildas Bazin's avatar
 
Gildas Bazin committed
158

159 160
        vlc_mutex_lock( &p_vout->change_lock );

161
        /* We don't directly check for the "vout-filter" variable for obvious
Gildas Bazin's avatar
 
Gildas Bazin committed
162
         * performance reasons. */
163
        if( p_vout->p->b_filter_change )
Gildas Bazin's avatar
 
Gildas Bazin committed
164
        {
165
            var_Get( p_vout, "vout-filter", &val );
166
            psz_filter_chain = val.psz_string;
Gildas Bazin's avatar
 
Gildas Bazin committed
167

168
            if( psz_filter_chain && !*psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
169 170 171 172
            {
                free( psz_filter_chain );
                psz_filter_chain = NULL;
            }
173
            if( p_vout->p->psz_filter_chain && !*p_vout->p->psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
174
            {
175 176
                free( p_vout->p->psz_filter_chain );
                p_vout->p->psz_filter_chain = NULL;
Gildas Bazin's avatar
 
Gildas Bazin committed
177 178
            }

179
            if( !psz_filter_chain && !p_vout->p->psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
180
            {
181
                p_vout->p->b_filter_change = false;
Gildas Bazin's avatar
 
Gildas Bazin committed
182 183
            }

184
            free( psz_filter_chain );
Gildas Bazin's avatar
 
Gildas Bazin committed
185 186
        }

187 188 189
        if( p_vout->fmt_render.i_chroma != p_fmt->i_chroma ||
            p_vout->fmt_render.i_width != p_fmt->i_width ||
            p_vout->fmt_render.i_height != p_fmt->i_height ||
190
            p_vout->p->b_filter_change )
191
        {
192 193
            vlc_mutex_unlock( &p_vout->change_lock );

194
            /* We are not interested in this format, close this vout */
195
            vout_CloseAndRelease( p_vout );
196
            vlc_object_release( p_vout );
197 198 199 200 201
            p_vout = NULL;
        }
        else
        {
            /* This video output is cool! Hijack it. */
202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249
            if( p_vout->fmt_render.i_aspect != p_fmt->i_aspect )
            {
                /* Correct aspect ratio on change
                 * FIXME factorize this code with other aspect ration related code */
                unsigned int i_sar_num;
                unsigned int i_sar_den;
                unsigned int i_aspect;

                i_aspect = p_fmt->i_aspect;
                vlc_ureduce( &i_sar_num, &i_sar_den,
                             p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
#if 0
                /* What's that, it does not seems to be used correcly everywhere
                 * beside the previous p_vout->fmt_render.i_aspect != p_fmt->i_aspect
                 * should be fixed to use it too then */
                if( p_vout->i_par_num > 0 && p_vout->i_par_den > 0 )
                {
                    i_sar_num *= p_vout->i_par_den;
                    i_sar_den *= p_vout->i_par_num;
                    i_aspect = i_aspect * p_vout->i_par_den / p_vout->i_par_num;
                }
#endif

                if( i_sar_num > 0 && i_sar_den > 0 && i_aspect > 0 )
                {
                    p_vout->fmt_in.i_sar_num = i_sar_num;
                    p_vout->fmt_in.i_sar_den = i_sar_den;
                    p_vout->fmt_in.i_aspect  = i_aspect;

                    p_vout->fmt_render.i_sar_num = i_sar_num;
                    p_vout->fmt_render.i_sar_den = i_sar_den;
                    p_vout->fmt_render.i_aspect  = i_aspect;

                    p_vout->render.i_aspect   = i_aspect;

                    p_vout->i_changes |= VOUT_ASPECT_CHANGE;

                }
            }
            vlc_mutex_unlock( &p_vout->change_lock );

            vlc_object_release( p_vout );
        }

        if( p_vout )
        {
            msg_Dbg( p_this, "reusing provided vout" );

250
            spu_Attach( p_vout->p_spu, p_this, true );
251 252

            vlc_object_detach( p_vout );
253
            vlc_object_attach( p_vout, p_this );
254 255 256

            /* Display title if we are not using the vout given to vout_Request.
             * XXX for now b_vout_provided is always true at this stage */
257
            if( p_vout->p->b_title_show && !b_vout_provided )
258
                DisplayTitleOnOSD( p_vout );
259 260 261 262 263 264 265
        }
    }

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

266
        p_vout = vout_Create( p_this, p_fmt );
267 268 269 270 271 272 273
    }

    return p_vout;
}

/*****************************************************************************
 * vout_Create: creates a new video output thread
274
 *****************************************************************************
Michel Kaempf's avatar
Michel Kaempf committed
275 276
 * This function creates a new video output thread, and returns a pointer
 * to its description. On error, it returns NULL.
277
 *****************************************************************************/
278
vout_thread_t * __vout_Create( vlc_object_t *p_parent, video_format_t *p_fmt )
Michel Kaempf's avatar
Michel Kaempf committed
279
{
Gildas Bazin's avatar
 
Gildas Bazin committed
280 281
    vout_thread_t  * p_vout;                            /* thread descriptor */
    int              i_index;                               /* loop variable */
282
    vlc_value_t      val, text;
Michel Kaempf's avatar
Michel Kaempf committed
283

284 285
    unsigned int i_width = p_fmt->i_width;
    unsigned int i_height = p_fmt->i_height;
286 287 288
    vlc_fourcc_t i_chroma = p_fmt->i_chroma;
    unsigned int i_aspect = p_fmt->i_aspect;

289 290 291 292
    config_chain_t *p_cfg;
    char *psz_parser;
    char *psz_name;

293 294 295 296 297 298 299 300
    if( i_width <= 0 || i_height <= 0 || i_aspect <= 0 )
        return NULL;

    vlc_ureduce( &p_fmt->i_sar_num, &p_fmt->i_sar_den,
                 p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
    if( p_fmt->i_sar_num <= 0 || p_fmt->i_sar_den <= 0 )
        return NULL;

301
    /* Allocate descriptor */
302 303 304
    static const char typename[] = "video output";
    p_vout = vlc_custom_create( p_parent, sizeof( *p_vout ), VLC_OBJECT_VOUT,
                                typename );
305
    if( p_vout == NULL )
306
        return NULL;
307

308
    /* */
Laurent Aimar's avatar
Laurent Aimar committed
309
    p_vout->p = calloc( 1, sizeof(*p_vout->p) );
310 311 312 313 314 315
    if( !p_vout->p )
    {
        vlc_object_release( p_vout );
        return NULL;
    }

316
    /* Initialize pictures - translation tables and functions
Gildas Bazin's avatar
 
Gildas Bazin committed
317
     * will be initialized later in InitThread */
318
    for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++)
Gildas Bazin's avatar
 
Gildas Bazin committed
319 320 321 322 323
    {
        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;
324
        p_vout->p_picture[i_index].b_slow   = 0;
Gildas Bazin's avatar
 
Gildas Bazin committed
325 326 327 328 329 330 331
    }

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

    /* Initialize the rendering heap */
    I_RENDERPICTURES = 0;
332

333 334
    p_vout->fmt_render        = *p_fmt;   /* FIXME palette */
    p_vout->fmt_in            = *p_fmt;   /* FIXME palette */
335

Gildas Bazin's avatar
 
Gildas Bazin committed
336 337 338 339 340
    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;

341 342 343
    p_vout->render.i_rmask    = p_fmt->i_rmask;
    p_vout->render.i_gmask    = p_fmt->i_gmask;
    p_vout->render.i_bmask    = p_fmt->i_bmask;
Gildas Bazin's avatar
 
Gildas Bazin committed
344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362

    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->b_scale      = 1;
    p_vout->b_fullscreen = 0;
Gildas Bazin's avatar
 
Gildas Bazin committed
363
    p_vout->i_alignment  = 0;
364 365
    p_vout->p->render_time  = 10;
    p_vout->p->c_fps_samples = 0;
366 367
    p_vout->p->i_picture_lost = 0;
    p_vout->p->i_picture_displayed = 0;
368
    p_vout->p->b_filter_change = 0;
Laurent Aimar's avatar
Laurent Aimar committed
369 370
    p_vout->p->b_paused = false;
    p_vout->p->i_pause_date = 0;
371 372
    p_vout->pf_control = NULL;
    p_vout->p_window = NULL;
373 374
    p_vout->p->i_par_num =
    p_vout->p->i_par_den = 1;
375
    p_vout->p->p_picture_displayed = NULL;
Gildas Bazin's avatar
 
Gildas Bazin committed
376 377

    /* Initialize locks */
378 379
    vlc_mutex_init( &p_vout->picture_lock );
    vlc_cond_init( &p_vout->p->picture_wait );
380
    vlc_mutex_init( &p_vout->change_lock );
381
    vlc_mutex_init( &p_vout->p->vfilter_lock );
Gildas Bazin's avatar
 
Gildas Bazin committed
382

383 384 385 386 387 388 389
    /* 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 );

390
    /* Initialize subpicture unit */
391
    p_vout->p_spu = spu_Create( p_vout );
392
    spu_Attach( p_vout->p_spu, p_parent, true );
393

Gildas Bazin's avatar
 
Gildas Bazin committed
394 395 396
    /* Attach the new object now so we can use var inheritance below */
    vlc_object_attach( p_vout, p_parent );

397 398
    spu_Init( p_vout->p_spu );

399 400
    /* Take care of some "interface/control" related initialisations */
    vout_IntfInit( p_vout );
Gildas Bazin's avatar
 
Gildas Bazin committed
401

Gildas Bazin's avatar
 
Gildas Bazin committed
402 403 404
    /* 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
405
    {
406
        /* Look for the default filter configuration */
407
        p_vout->p->psz_filter_chain =
408
            var_CreateGetStringCommand( p_vout, "vout-filter" );
409 410

        /* Apply video filter2 objects on the first vout */
411
        p_vout->p->psz_vf2 =
412
            var_CreateGetStringCommand( p_vout, "video-filter" );
Gildas Bazin's avatar
 
Gildas Bazin committed
413 414 415 416
    }
    else
    {
        /* continue the parent's filter chain */
417
        char *psz_tmp;
Gildas Bazin's avatar
 
Gildas Bazin committed
418

419
        /* Ugly hack to jump to our configuration chain */
420 421 422 423
        p_vout->p->psz_filter_chain
            = ((vout_thread_t *)p_parent)->p->psz_filter_chain;
        p_vout->p->psz_filter_chain
            = config_ChainCreate( &psz_tmp, &p_cfg, p_vout->p->psz_filter_chain );
424 425
        config_ChainDestroy( p_cfg );
        free( psz_tmp );
426 427

        /* Create a video filter2 var ... but don't inherit values */
428 429
        var_Create( p_vout, "video-filter",
                    VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
430
        p_vout->p->psz_vf2 = var_GetString( p_vout, "video-filter" );
Gildas Bazin's avatar
 
Gildas Bazin committed
431 432
    }

433
    var_AddCallback( p_vout, "video-filter", VideoFilter2Callback, NULL );
434
    p_vout->p->p_vf2_chain = filter_chain_New( p_vout, "video filter2",
435
        false, video_filter_buffer_allocation_init, NULL, p_vout );
436

Gildas Bazin's avatar
 
Gildas Bazin committed
437
    /* Choose the video output module */
438
    if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
Gildas Bazin's avatar
 
Gildas Bazin committed
439
    {
Gildas Bazin's avatar
 
Gildas Bazin committed
440 441
        var_Create( p_vout, "vout", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
        var_Get( p_vout, "vout", &val );
Antoine Cellerier's avatar
Antoine Cellerier committed
442
        psz_parser = val.psz_string;
Gildas Bazin's avatar
 
Gildas Bazin committed
443 444 445
    }
    else
    {
446 447
        psz_parser = strdup( p_vout->p->psz_filter_chain );
        p_vout->p->b_title_show = false;
Sam Hocevar's avatar
 
Sam Hocevar committed
448 449
    }

Gildas Bazin's avatar
 
Gildas Bazin committed
450
    /* Create the vout thread */
451
    char* psz_tmp = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
Antoine Cellerier's avatar
Antoine Cellerier committed
452
    free( psz_parser );
453
    free( psz_tmp );
454
    p_vout->p_cfg = p_cfg;
455
    p_vout->p_module = module_need( p_vout,
456 457
        ( p_vout->p->psz_filter_chain && *p_vout->p->psz_filter_chain ) ?
        "video filter" : "video output", psz_name, p_vout->p->psz_filter_chain && *p_vout->p->psz_filter_chain );
458
    free( psz_name );
Sam Hocevar's avatar
 
Sam Hocevar committed
459 460 461

    if( p_vout->p_module == NULL )
    {
462
        msg_Err( p_vout, "no suitable vout module" );
Laurent Aimar's avatar
Laurent Aimar committed
463
        vlc_object_set_destructor( p_vout, vout_Destructor );
464
        vlc_object_release( p_vout );
465
        return NULL;
Sam Hocevar's avatar
 
Sam Hocevar committed
466
    }
Gildas Bazin's avatar
 
Gildas Bazin committed
467

Gildas Bazin's avatar
 
Gildas Bazin committed
468
    /* Create a few object variables for interface interaction */
Gildas Bazin's avatar
 
Gildas Bazin committed
469 470 471
    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 );
472
    val.psz_string = (char *)""; text.psz_string = _("Disable");
Gildas Bazin's avatar
 
Gildas Bazin committed
473
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
474
    val.psz_string = (char *)"discard"; text.psz_string = _("Discard");
Gildas Bazin's avatar
 
Gildas Bazin committed
475
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
476
    val.psz_string = (char *)"blend"; text.psz_string = _("Blend");
Gildas Bazin's avatar
 
Gildas Bazin committed
477
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
478
    val.psz_string = (char *)"mean"; text.psz_string = _("Mean");
Gildas Bazin's avatar
 
Gildas Bazin committed
479
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
480
    val.psz_string = (char *)"bob"; text.psz_string = _("Bob");
Gildas Bazin's avatar
 
Gildas Bazin committed
481
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
482
    val.psz_string = (char *)"linear"; text.psz_string = _("Linear");
Gildas Bazin's avatar
 
Gildas Bazin committed
483
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
484
    val.psz_string = (char *)"x"; text.psz_string = (char *)"X";
485 486
    var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );

Gildas Bazin's avatar
 
Gildas Bazin committed
487 488 489
    if( var_Get( p_vout, "deinterlace-mode", &val ) == VLC_SUCCESS )
    {
        var_Set( p_vout, "deinterlace", val );
490
        free( val.psz_string );
Gildas Bazin's avatar
 
Gildas Bazin committed
491
    }
Gildas Bazin's avatar
 
Gildas Bazin committed
492 493
    var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );

494
    var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
495
    text.psz_string = _("Filters");
496 497
    var_Change( p_vout, "vout-filter", VLC_VAR_SETTEXT, &text, NULL );
    var_AddCallback( p_vout, "vout-filter", FilterCallback, NULL );
498

499
    if( vlc_thread_create( p_vout, "video output", RunThread,
500
                           VLC_THREAD_PRIORITY_OUTPUT, true ) )
Michel Kaempf's avatar
Michel Kaempf committed
501
    {
502
        module_unneed( p_vout, p_vout->p_module );
Laurent Aimar's avatar
Laurent Aimar committed
503 504
        p_vout->p_module = NULL;
        vlc_object_set_destructor( p_vout, vout_Destructor );
505
        vlc_object_release( p_vout );
506 507 508
        return NULL;
    }

509 510
    vlc_object_set_destructor( p_vout, vout_Destructor );

511 512 513
    if( p_vout->b_error )
    {
        msg_Err( p_vout, "video output creation failed" );
514
        vout_CloseAndRelease( p_vout );
515
        return NULL;
516
    }
Michel Kaempf's avatar
Michel Kaempf committed
517

518
    return p_vout;
Michel Kaempf's avatar
Michel Kaempf committed
519 520
}

521
/*****************************************************************************
522
 * vout_Close: Close a vout created by vout_Create.
523
 *****************************************************************************
524
 * You HAVE to call it on vout created by vout_Create before vlc_object_release.
Rémi Denis-Courmont's avatar
Typo  
Rémi Denis-Courmont committed
525
 * You should NEVER call it on vout not obtained through vout_Create
526 527
 * (like with vout_Request or vlc_object_find.)
 * You can use vout_CloseAndRelease() as a convenient method.
528
 *****************************************************************************/
529
void vout_Close( vout_thread_t *p_vout )
530 531 532 533 534
{
    assert( p_vout );

    vlc_object_kill( p_vout );
    vlc_thread_join( p_vout );
535
    module_unneed( p_vout, p_vout->p_module );
536
    p_vout->p_module = NULL;
537 538 539
}

/* */
540 541
static void vout_Destructor( vlc_object_t * p_this )
{
542
    vout_thread_t *p_vout = (vout_thread_t *)p_this;
543

544 545 546
    /* Make sure the vout was stopped first */
    assert( !p_vout->p_module );

Laurent Aimar's avatar
Laurent Aimar committed
547 548 549
    /* */
    spu_Destroy( p_vout->p_spu );

550
    /* Destroy the locks */
551
    vlc_cond_destroy( &p_vout->p->picture_wait );
552 553
    vlc_mutex_destroy( &p_vout->picture_lock );
    vlc_mutex_destroy( &p_vout->change_lock );
554
    vlc_mutex_destroy( &p_vout->p->vfilter_lock );
555

556
    free( p_vout->p->psz_filter_chain );
Gildas Bazin's avatar
 
Gildas Bazin committed
557

558 559
    config_ChainDestroy( p_vout->p_cfg );

560 561
    free( p_vout->p );

562
#ifndef __APPLE__
563
    vout_thread_t *p_another_vout;
564

565 566 567 568 569 570 571 572
    /* This is a dirty hack mostly for Linux, where there is no way to get the
     * GUI back if you closed it while playing video. This is solved in
     * Mac OS X, where we have this novelty called menubar, that will always
     * allow you access to the applications main functionality. They should try
     * that on linux sometime. */
    p_another_vout = vlc_object_find( p_this->p_libvlc,
                                      VLC_OBJECT_VOUT, FIND_ANYWHERE );
    if( p_another_vout == NULL )
573
        var_SetBool( p_this->p_libvlc, "intf-show", true );
574 575
    else
        vlc_object_release( p_another_vout );
576
#endif
Michel Kaempf's avatar
Michel Kaempf committed
577 578
}

Laurent Aimar's avatar
Laurent Aimar committed
579 580 581 582 583
/* */
void vout_ChangePause( vout_thread_t *p_vout, bool b_paused, mtime_t i_date )
{
    vlc_object_lock( p_vout );

584
    assert( !p_vout->p->b_paused || !b_paused );
Laurent Aimar's avatar
Laurent Aimar committed
585 586 587 588
    if( p_vout->p->b_paused )
    {
        const mtime_t i_duration = i_date - p_vout->p->i_pause_date;

589
        vlc_mutex_lock( &p_vout->picture_lock );
Laurent Aimar's avatar
Laurent Aimar committed
590 591 592 593 594 595 596
        for( int i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
        {
            picture_t *p_pic = PP_RENDERPICTURE[i_index];

            if( p_pic->i_status == READY_PICTURE )
                p_pic->date += i_duration;
        }
597 598 599
        vlc_cond_signal( &p_vout->p->picture_wait );
        vlc_mutex_unlock( &p_vout->picture_lock );

Laurent Aimar's avatar
Laurent Aimar committed
600
        spu_OffsetSubtitleDate( p_vout->p_spu, i_duration );
Laurent Aimar's avatar
Laurent Aimar committed
601 602 603 604 605 606
    }
    p_vout->p->b_paused = b_paused;
    p_vout->p->i_pause_date = i_date;

    vlc_object_unlock( p_vout );
}
607 608 609 610 611 612 613 614 615 616 617 618
void vout_GetResetStatistic( vout_thread_t *p_vout, int *pi_displayed, int *pi_lost )
{
    vlc_object_lock( p_vout );

    *pi_displayed = p_vout->p->i_picture_displayed;
    *pi_lost = p_vout->p->i_picture_lost;

    p_vout->p->i_picture_displayed = 0;
    p_vout->p->i_picture_lost = 0;

    vlc_object_unlock( p_vout );
}
Laurent Aimar's avatar
Laurent Aimar committed
619 620 621 622 623 624
void vout_Flush( vout_thread_t *p_vout, mtime_t i_date )
{
    vlc_mutex_lock( &p_vout->picture_lock );
    for( int i = 0; i < p_vout->render.i_pictures; i++ )
    {
        picture_t *p_pic = p_vout->render.pp_picture[i];
Laurent Aimar's avatar
Laurent Aimar committed
625

Laurent Aimar's avatar
Laurent Aimar committed
626 627 628 629 630 631 632 633 634
        if( p_pic->i_status == READY_PICTURE ||
            p_pic->i_status == DISPLAYED_PICTURE )
        {
            /* We cannot change picture status if it is in READY_PICTURE state,
             * Just make sure they won't be displayed */
            if( p_pic->date > i_date )
                p_pic->date = i_date;
        }
    }
635
    vlc_cond_signal( &p_vout->p->picture_wait );
Laurent Aimar's avatar
Laurent Aimar committed
636 637
    vlc_mutex_unlock( &p_vout->picture_lock );
}
638
void vout_FixLeaks( vout_thread_t *p_vout, bool b_forced )
639 640 641 642 643
{
    int i_pic, i_ready_pic;

    vlc_mutex_lock( &p_vout->picture_lock );

644
    for( i_pic = 0, i_ready_pic = 0; i_pic < p_vout->render.i_pictures && !b_forced; i_pic++ )
645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666
    {
        const picture_t *p_pic = p_vout->render.pp_picture[i_pic];

        if( p_pic->i_status == READY_PICTURE )
        {
            i_ready_pic++;
            /* If we have at least 2 ready pictures, wait for the vout thread to
             * process one */
            if( i_ready_pic >= 2 )
                break;

            continue;
        }

        if( p_pic->i_status == DISPLAYED_PICTURE )
        {
            /* If at least one displayed picture is not referenced
             * let vout free it */
            if( p_pic->i_refcount == 0 )
                break;
        }
    }
667
    if( i_pic < p_vout->render.i_pictures && !b_forced )
668 669 670 671 672 673 674
    {
        vlc_mutex_unlock( &p_vout->picture_lock );
        return;
    }

    /* Too many pictures are still referenced, there is probably a bug
     * with the decoder */
675 676
    if( !b_forced )
        msg_Err( p_vout, "pictures leaked, resetting the heap" );
677 678 679 680 681

    /* Just free all the pictures */
    for( i_pic = 0; i_pic < p_vout->render.i_pictures; i_pic++ )
    {
        picture_t *p_pic = p_vout->render.pp_picture[i_pic];
682 683
        p_pic->i_refcount = 0;
        vout_UsePictureLocked( p_vout, p_pic );
684
    }
685
    vlc_cond_signal( &p_vout->p->picture_wait );
686 687 688
    vlc_mutex_unlock( &p_vout->picture_lock );
}

689
/*****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
690
 * InitThread: initialize video output thread
691
 *****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
692 693 694
 * 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.
695
 * XXX You have to enter it with change_lock taken.
696
 *****************************************************************************/
697 698
static int ChromaCreate( vout_thread_t *p_vout );
static void ChromaDestroy( vout_thread_t *p_vout );
699

700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715
static bool ChromaIsEqual( const picture_heap_t *p_output, const picture_heap_t *p_render )
{
     if( !vout_ChromaCmp( p_output->i_chroma, p_render->i_chroma ) )
         return false;

     if( p_output->i_chroma != FOURCC_RV15 &&
         p_output->i_chroma != FOURCC_RV16 &&
         p_output->i_chroma != FOURCC_RV24 &&
         p_output->i_chroma != FOURCC_RV32 )
         return true;

     return p_output->i_rmask == p_render->i_rmask &&
            p_output->i_gmask == p_render->i_gmask &&
            p_output->i_bmask == p_render->i_bmask;
}

Sam Hocevar's avatar
 
Sam Hocevar committed
716
static int InitThread( vout_thread_t *p_vout )
Vincent Seguin's avatar
Vincent Seguin committed
717
{
718
    int i, i_aspect_x, i_aspect_y;
Sam Hocevar's avatar
 
Sam Hocevar committed
719

Sam Hocevar's avatar
 
Sam Hocevar committed
720
    /* Initialize output method, it allocates direct buffers for us */
Sam Hocevar's avatar
 
Sam Hocevar committed
721
    if( p_vout->pf_init( p_vout ) )
722
        return VLC_EGENERIC;
Sam Hocevar's avatar
 
Sam Hocevar committed
723

724 725
    p_vout->p->p_picture_displayed = NULL;

Sam Hocevar's avatar
 
Sam Hocevar committed
726
    if( !I_OUTPUTPICTURES )
Sam Hocevar's avatar
 
Sam Hocevar committed
727
    {
728 729
        msg_Err( p_vout, "plugin was unable to allocate at least "
                         "one direct buffer" );
Sam Hocevar's avatar
 
Sam Hocevar committed
730
        p_vout->pf_end( p_vout );
731
        return VLC_EGENERIC;
732
    }
Vincent Seguin's avatar
Vincent Seguin committed
733

Gildas Bazin's avatar
 
Gildas Bazin committed
734 735 736 737 738 739 740 741
    if( I_OUTPUTPICTURES > VOUT_MAX_PICTURES )
    {
        msg_Err( p_vout, "plugin allocated too many direct buffers, "
                         "our internal buffers must have overflown." );
        p_vout->pf_end( p_vout );
        return VLC_EGENERIC;
    }

742
    msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
Sam Hocevar's avatar
 
Sam Hocevar committed
743

744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786
    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
787 788
    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 );
789 790

    AspectRatio( p_vout->fmt_out.i_aspect, &i_aspect_x, &i_aspect_y );
Sam Hocevar's avatar
 
Sam Hocevar committed
791

792 793
    msg_Dbg( p_vout, "picture out %ix%i (%i,%i,%ix%i), "
             "chroma %4.4s, ar %i:%i, sar %i:%i",
794
             p_vout->fmt_out.i_width, p_vout->fmt_out.i_height,
795 796 797 798 799
             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,
800
             p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den );
Sam Hocevar's avatar
 
Sam Hocevar committed
801

802
    /* FIXME removed the need of both fmt_* and heap infos */
Sam Hocevar's avatar
 
Sam Hocevar committed
803
    /* Calculate shifts from system-updated masks */
804 805 806 807 808
    PictureHeapFixRgb( &p_vout->render );
    VideoFormatImportRgb( &p_vout->fmt_render, &p_vout->render );

    PictureHeapFixRgb( &p_vout->output );
    VideoFormatImportRgb( &p_vout->fmt_out, &p_vout->output );
Sam Hocevar's avatar
 
Sam Hocevar committed
809

Sam Hocevar's avatar
 
Sam Hocevar committed
810
    /* Check whether we managed to create direct buffers similar to
811
     * the render buffers, ie same size and chroma */
Sam Hocevar's avatar
 
Sam Hocevar committed
812 813
    if( ( p_vout->output.i_width == p_vout->render.i_width )
     && ( p_vout->output.i_height == p_vout->render.i_height )
814
     && ( ChromaIsEqual( &p_vout->output, &p_vout->render ) ) )
Sam Hocevar's avatar
 
Sam Hocevar committed
815
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
816 817 818 819
        /* 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 */
820
        p_vout->p->b_direct = true;
Sam Hocevar's avatar
 
Sam Hocevar committed
821

Sam Hocevar's avatar
 
Sam Hocevar committed
822 823
        for( i = 1; i < VOUT_MAX_PICTURES; i++ )
        {
Gildas Bazin's avatar
 
Gildas Bazin committed
824 825 826 827 828 829 830 831
            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
832 833 834
            PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
            I_RENDERPICTURES++;
        }
Gildas Bazin's avatar
 
Gildas Bazin committed
835 836 837 838

        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
839 840 841
    }
    else
    {
Sam Hocevar's avatar
 
Sam Hocevar committed
842 843 844
        /* 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 */
845
        p_vout->p->b_direct = false;
Sam Hocevar's avatar
 
Sam Hocevar committed
846

847
        if( ChromaCreate( p_vout ) )
Sam Hocevar's avatar
 
Sam Hocevar committed
848 849
        {
            p_vout->pf_end( p_vout );
850
            return VLC_EGENERIC;
Sam Hocevar's avatar
 
Sam Hocevar committed
851
        }
Sam Hocevar's avatar
 
Sam Hocevar committed
852

Gildas Bazin's avatar
 
Gildas Bazin committed
853 854 855 856
        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
857 858

        /* Append render buffers after the direct buffers */
Sam Hocevar's avatar
 
Sam Hocevar committed
859
        for( i = I_OUTPUTPICTURES; i < 2 * VOUT_MAX_PICTURES; i++ )
Sam Hocevar's avatar
 
Sam Hocevar committed
860 861 862
        {
            PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
            I_RENDERPICTURES++;
Gildas Bazin's avatar
 
Gildas Bazin committed
863 864 865 866

            /* Check if we have enough render pictures */
            if( I_RENDERPICTURES == VOUT_MAX_PICTURES )
                break;
Sam Hocevar's avatar
 
Sam Hocevar committed
867 868
        }
    }
Vincent Seguin's avatar
Vincent Seguin committed
869

Sam Hocevar's avatar
 
Sam Hocevar committed
870 871 872 873 874 875 876 877 878 879 880
    /* 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;
    }

881
    return VLC_SUCCESS;
Vincent Seguin's avatar
Vincent Seguin committed
882 883
}

884
/*****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
885
 * RunThread: video output thread
886
 *****************************************************************************
Sam Hocevar's avatar
 
Sam Hocevar committed
887 888 889
 * 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.
890
 *****************************************************************************/
891
static void* RunThread( vlc_object_t *p_this )
Vincent Seguin's avatar
Vincent Seguin committed
892
{
893
    vout_thread_t *p_vout = (vout_thread_t *)p_this;
894
    int             i_idle_loops = 0;  /* loops without displaying a picture */
Sam Hocevar's avatar
 
Sam Hocevar committed
895

Laurent Aimar's avatar
Laurent Aimar committed
896
    bool            b_drop_late;
897

898
    int canc = vlc_savecancel();
899

Sam Hocevar's avatar
 
Sam Hocevar committed
900 901 902
    /*
     * Initialize thread
     */
903
    vlc_mutex_lock( &p_vout->change_lock );
Sam Hocevar's avatar
 
Sam Hocevar committed
904
    p_vout->b_error = InitThread( p_vout );
Gildas Bazin's avatar
 
Gildas Bazin committed
905

Laurent Aimar's avatar
Laurent Aimar committed
906
    b_drop_late = var_CreateGetBool( p_vout, "drop-late-frames" );
907

Gildas Bazin's avatar
 
Gildas Bazin committed
908 909 910
    /* signal the creation of the vout */
    vlc_thread_ready( p_vout );

Sam Hocevar's avatar
 
Sam Hocevar committed
911
    if( p_vout->b_error )
912
    {