git.sesse.net Git - vlc/blob - src/video_output/video_output.c

   1 /*****************************************************************************
   2  * video_output.c : video output thread
   3  *
   4  * This module describes the programming interface for video output threads.
   5  * It includes functions allowing to open a new thread, send pictures to a
   6  * thread, and destroy a previously oppened video output thread.
   7  *****************************************************************************
   8  * Copyright (C) 2000-2007 the VideoLAN team
   9  * $Id$
  10  *
  11  * Authors: Vincent Seguin <seguin@via.ecp.fr>
  12  *          Gildas Bazin <gbazin@videolan.org>
  13  *
  14  * This program is free software; you can redistribute it and/or modify
  15  * it under the terms of the GNU General Public License as published by
  16  * the Free Software Foundation; either version 2 of the License, or
  17  * (at your option) any later version.
  18  *
  19  * This program is distributed in the hope that it will be useful,
  20  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  * GNU General Public License for more details.
  23  *
  24  * You should have received a copy of the GNU General Public License
  25  * along with this program; if not, write to the Free Software
  26  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  27  *****************************************************************************/
  28
  29 /*****************************************************************************
  30  * Preamble
  31  *****************************************************************************/
  32 #ifdef HAVE_CONFIG_H
  33 # include "config.h"
  34 #endif
  35
  36 #include <vlc_common.h>
  37
  38 #include <stdlib.h>                                                /* free() */
  39 #include <string.h>
  40
  41 #include <vlc_vout.h>
  42
  43 #include <vlc_filter.h>
  44 #include <vlc_osd.h>
  45 #include <assert.h>
  46
  47 #if defined( __APPLE__ )
  48 /* Include darwin_specific.h here if needed */
  49 #endif
  50
  51 /** FIXME This is quite ugly but needed while we don't have counters
  52  * helpers */
  53 //#include "input/input_internal.h"
  54
  55 #include <libvlc.h>
  56 #include <vlc_input.h>
  57 #include "vout_pictures.h"
  58 #include "vout_internal.h"
  59
  60 /*****************************************************************************
  61  * Local prototypes
  62  *****************************************************************************/
  63 static int      InitThread        ( vout_thread_t * );
  64 static void*    RunThread         ( void *  );
  65 static void     ErrorThread       ( vout_thread_t * );
  66 static void     CleanThread       ( vout_thread_t * );
  67 static void     EndThread         ( vout_thread_t * );
  68
  69 static void VideoFormatImportRgb( video_format_t *, const picture_heap_t * );
  70 static void PictureHeapFixRgb( picture_heap_t * );
  71
  72 static void     vout_Destructor   ( vlc_object_t * p_this );
  73
  74 /* Object variables callbacks */
  75 static int FilterCallback( vlc_object_t *, char const *,
  76                            vlc_value_t, vlc_value_t, void * );
  77 static int VideoFilter2Callback( vlc_object_t *, char const *,
  78                                  vlc_value_t, vlc_value_t, void * );
  79
  80 /* */
  81 static void PostProcessEnable( vout_thread_t * );
  82 static void PostProcessDisable( vout_thread_t * );
  83 static void PostProcessSetFilterQuality( vout_thread_t *p_vout );
  84 static int  PostProcessCallback( vlc_object_t *, char const *,
  85                                  vlc_value_t, vlc_value_t, void * );
  86 /* */
  87 static void DeinterlaceEnable( vout_thread_t * );
  88 static void DeinterlaceNeeded( vout_thread_t *, bool );
  89
  90 /* From vout_intf.c */
  91 int vout_Snapshot( vout_thread_t *, picture_t * );
  92
  93 /* Display media title in OSD */
  94 static void DisplayTitleOnOSD( vout_thread_t *p_vout );
  95
  96 /* Time during which the thread will sleep if it has nothing to
  97  * display (in micro-seconds) */
  98 #define VOUT_IDLE_SLEEP                 ((int)(0.020*CLOCK_FREQ))
  99
 100 /* Maximum lap of time allowed between the beginning of rendering and
 101  * display. If, compared to the current date, the next image is too
 102  * late, the thread will perform an idle loop. This time should be
 103  * at least VOUT_IDLE_SLEEP plus the time required to render a few
 104  * images, to avoid trashing of decoded images */
 105 #define VOUT_DISPLAY_DELAY              ((int)(0.200*CLOCK_FREQ))
 106
 107 /* Better be in advance when awakening than late... */
 108 #define VOUT_MWAIT_TOLERANCE            ((mtime_t)(0.020*CLOCK_FREQ))
 109
 110 /* Minimum number of direct pictures the video output will accept without
 111  * creating additional pictures in system memory */
 112 #ifdef OPTIMIZE_MEMORY
 113 #   define VOUT_MIN_DIRECT_PICTURES        (VOUT_MAX_PICTURES/2)
 114 #else
 115 #   define VOUT_MIN_DIRECT_PICTURES        (3*VOUT_MAX_PICTURES/4)
 116 #endif
 117
 118 /*****************************************************************************
 119  * Video Filter2 functions
 120  *****************************************************************************/
 121 static picture_t *video_new_buffer_filter( filter_t *p_filter )
 122 {
 123     vout_thread_t *p_vout = (vout_thread_t*)p_filter->p_owner;
 124     picture_t *p_picture = vout_CreatePicture( p_vout, 0, 0, 0 );
 125
 126     p_picture->i_status = READY_PICTURE;
 127
 128     return p_picture;
 129 }
 130
 131 static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
 132 {
 133     vout_thread_t *p_vout = (vout_thread_t*)p_filter->p_owner;
 134
 135     vlc_mutex_lock( &p_vout->picture_lock );
 136     vout_UsePictureLocked( p_vout, p_pic );
 137     vlc_mutex_unlock( &p_vout->picture_lock );
 138 }
 139
 140 static int video_filter_buffer_allocation_init( filter_t *p_filter, void *p_data )
 141 {
 142     p_filter->pf_video_buffer_new = video_new_buffer_filter;
 143     p_filter->pf_video_buffer_del = video_del_buffer_filter;
 144     p_filter->p_owner = p_data; /* p_vout */
 145     return VLC_SUCCESS;
 146 }
 147
 148 #undef vout_Request
 149 /*****************************************************************************
 150  * vout_Request: find a video output thread, create one, or destroy one.
 151  *****************************************************************************
 152  * This function looks for a video output thread matching the current
 153  * properties. If not found, it spawns a new one.
 154  *****************************************************************************/
 155 vout_thread_t *vout_Request( vlc_object_t *p_this, vout_thread_t *p_vout,
 156                              video_format_t *p_fmt )
 157 {
 158     if( !p_fmt )
 159     {
 160         /* Video output is no longer used.
 161          * TODO: support for reusing video outputs with proper _thread-safe_
 162          * reference handling. */
 163         if( p_vout )
 164             vout_CloseAndRelease( p_vout );
 165         return NULL;
 166     }
 167
 168     /* If a video output was provided, lock it, otherwise look for one. */
 169     if( p_vout )
 170     {
 171         vlc_object_hold( p_vout );
 172     }
 173
 174     /* TODO: find a suitable unused video output */
 175
 176     /* If we now have a video output, check it has the right properties */
 177     if( p_vout )
 178     {
 179         vlc_mutex_lock( &p_vout->change_lock );
 180
 181         /* We don't directly check for the "vout-filter" variable for obvious
 182          * performance reasons. */
 183         if( p_vout->p->b_filter_change )
 184         {
 185             char *psz_filter_chain = var_GetString( p_vout, "vout-filter" );
 186
 187             if( psz_filter_chain && !*psz_filter_chain )
 188             {
 189                 free( psz_filter_chain );
 190                 psz_filter_chain = NULL;
 191             }
 192             if( p_vout->p->psz_filter_chain && !*p_vout->p->psz_filter_chain )
 193             {
 194                 free( p_vout->p->psz_filter_chain );
 195                 p_vout->p->psz_filter_chain = NULL;
 196             }
 197
 198             if( !psz_filter_chain && !p_vout->p->psz_filter_chain )
 199             {
 200                 p_vout->p->b_filter_change = false;
 201             }
 202
 203             free( psz_filter_chain );
 204         }
 205
 206         if( p_vout->fmt_render.i_chroma != vlc_fourcc_GetCodec( VIDEO_ES, p_fmt->i_chroma ) ||
 207             p_vout->fmt_render.i_width != p_fmt->i_width ||
 208             p_vout->fmt_render.i_height != p_fmt->i_height ||
 209             p_vout->p->b_filter_change )
 210         {
 211             vlc_mutex_unlock( &p_vout->change_lock );
 212
 213             /* We are not interested in this format, close this vout */
 214             vout_CloseAndRelease( p_vout );
 215             vlc_object_release( p_vout );
 216             p_vout = NULL;
 217         }
 218         else
 219         {
 220             /* This video output is cool! Hijack it. */
 221             /* Correct aspect ratio on change
 222              * FIXME factorize this code with other aspect ration related code */
 223             unsigned int i_sar_num;
 224             unsigned int i_sar_den;
 225             vlc_ureduce( &i_sar_num, &i_sar_den,
 226                          p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
 227 #if 0
 228             /* What's that, it does not seems to be used correcly everywhere */
 229             if( p_vout->i_par_num > 0 && p_vout->i_par_den > 0 )
 230             {
 231                 i_sar_num *= p_vout->i_par_den;
 232                 i_sar_den *= p_vout->i_par_num;
 233             }
 234 #endif
 235
 236             if( i_sar_num > 0 && i_sar_den > 0 &&
 237                 ( i_sar_num != p_vout->fmt_render.i_sar_num ||
 238                   i_sar_den != p_vout->fmt_render.i_sar_den ) )
 239             {
 240                 p_vout->fmt_in.i_sar_num = i_sar_num;
 241                 p_vout->fmt_in.i_sar_den = i_sar_den;
 242
 243                 p_vout->fmt_render.i_sar_num = i_sar_num;
 244                 p_vout->fmt_render.i_sar_den = i_sar_den;
 245
 246                 p_vout->render.i_aspect = (int64_t)i_sar_num *
 247                                                    p_vout->fmt_render.i_width *
 248                                                    VOUT_ASPECT_FACTOR /
 249                                                    i_sar_den /
 250                                                    p_vout->fmt_render.i_height;
 251                 p_vout->i_changes |= VOUT_ASPECT_CHANGE;
 252             }
 253             vlc_mutex_unlock( &p_vout->change_lock );
 254
 255             vlc_object_release( p_vout );
 256         }
 257
 258         if( p_vout )
 259         {
 260             msg_Dbg( p_this, "reusing provided vout" );
 261
 262             spu_Attach( p_vout->p->p_spu, VLC_OBJECT(p_vout), false );
 263             vlc_object_detach( p_vout );
 264
 265             vlc_object_attach( p_vout, p_this );
 266             spu_Attach( p_vout->p->p_spu, VLC_OBJECT(p_vout), true );
 267         }
 268     }
 269
 270     if( !p_vout )
 271     {
 272         msg_Dbg( p_this, "no usable vout present, spawning one" );
 273
 274         p_vout = vout_Create( p_this, p_fmt );
 275     }
 276
 277     return p_vout;
 278 }
 279
 280 #undef vout_Create
 281 /*****************************************************************************
 282  * vout_Create: creates a new video output thread
 283  *****************************************************************************
 284  * This function creates a new video output thread, and returns a pointer
 285  * to its description. On error, it returns NULL.
 286  *****************************************************************************/
 287 vout_thread_t * vout_Create( vlc_object_t *p_parent, video_format_t *p_fmt )
 288 {
 289     vout_thread_t  * p_vout;                            /* thread descriptor */
 290     int              i_index;                               /* loop variable */
 291     vlc_value_t      text;
 292
 293     unsigned int i_width = p_fmt->i_width;
 294     unsigned int i_height = p_fmt->i_height;
 295     vlc_fourcc_t i_chroma = vlc_fourcc_GetCodec( VIDEO_ES, p_fmt->i_chroma );
 296
 297     config_chain_t *p_cfg;
 298     char *psz_parser;
 299     char *psz_name;
 300
 301     if( i_width <= 0 || i_height <= 0 )
 302         return NULL;
 303
 304     vlc_ureduce( &p_fmt->i_sar_num, &p_fmt->i_sar_den,
 305                  p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
 306     if( p_fmt->i_sar_num <= 0 || p_fmt->i_sar_den <= 0 )
 307         return NULL;
 308     unsigned int i_aspect = (int64_t)p_fmt->i_sar_num *
 309                                      i_width *
 310                                      VOUT_ASPECT_FACTOR /
 311                                      p_fmt->i_sar_den /
 312                                      i_height;
 313
 314     /* Allocate descriptor */
 315     static const char typename[] = "video output";
 316     p_vout = vlc_custom_create( p_parent, sizeof( *p_vout ), VLC_OBJECT_VOUT,
 317                                 typename );
 318     if( p_vout == NULL )
 319         return NULL;
 320
 321     /* */
 322     p_vout->p = calloc( 1, sizeof(*p_vout->p) );
 323     if( !p_vout->p )
 324     {
 325         vlc_object_release( p_vout );
 326         return NULL;
 327     }
 328
 329     /* Initialize pictures - translation tables and functions
 330      * will be initialized later in InitThread */
 331     for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++)
 332     {
 333         p_vout->p_picture[i_index].i_status = FREE_PICTURE;
 334         p_vout->p_picture[i_index].i_type   = EMPTY_PICTURE;
 335         p_vout->p_picture[i_index].b_slow   = 0;
 336     }
 337
 338     /* Initialize the rendering heap */
 339     I_RENDERPICTURES = 0;
 340
 341     p_vout->fmt_render        = *p_fmt;   /* FIXME palette */
 342     p_vout->fmt_in            = *p_fmt;   /* FIXME palette */
 343
 344     p_vout->render.i_width    = i_width;
 345     p_vout->render.i_height   = i_height;
 346     p_vout->render.i_chroma   = i_chroma;
 347     p_vout->render.i_aspect   = i_aspect;
 348
 349     p_vout->render.i_rmask    = p_fmt->i_rmask;
 350     p_vout->render.i_gmask    = p_fmt->i_gmask;
 351     p_vout->render.i_bmask    = p_fmt->i_bmask;
 352
 353     p_vout->render.i_last_used_pic = -1;
 354
 355     /* Zero the output heap */
 356     I_OUTPUTPICTURES = 0;
 357     p_vout->output.i_width    = 0;
 358     p_vout->output.i_height   = 0;
 359     p_vout->output.i_chroma   = 0;
 360     p_vout->output.i_aspect   = 0;
 361
 362     p_vout->output.i_rmask    = 0;
 363     p_vout->output.i_gmask    = 0;
 364     p_vout->output.i_bmask    = 0;
 365
 366     /* Initialize misc stuff */
 367     p_vout->i_changes    = 0;
 368     p_vout->b_autoscale  = 1;
 369     p_vout->i_zoom      = ZOOM_FP_FACTOR;
 370     p_vout->b_fullscreen = 0;
 371     p_vout->i_alignment  = 0;
 372     p_vout->p->render_time  = 10;
 373     p_vout->p->c_fps_samples = 0;
 374     vout_statistic_Init( &p_vout->p->statistic );
 375     p_vout->p->b_filter_change = 0;
 376     p_vout->p->b_paused = false;
 377     p_vout->p->i_pause_date = 0;
 378     p_vout->p->i_par_num =
 379     p_vout->p->i_par_den = 1;
 380     p_vout->p->p_picture_displayed = NULL;
 381     p_vout->p->i_picture_displayed_date = 0;
 382     p_vout->p->b_picture_displayed = false;
 383     p_vout->p->b_picture_empty = false;
 384     p_vout->p->i_picture_qtype = QTYPE_NONE;
 385     p_vout->p->b_picture_interlaced = false;
 386
 387     vlc_mouse_Init( &p_vout->p->mouse );
 388
 389     vout_snapshot_Init( &p_vout->p->snapshot );
 390
 391     /* Initialize locks */
 392     vlc_mutex_init( &p_vout->picture_lock );
 393     vlc_cond_init( &p_vout->p->picture_wait );
 394     vlc_mutex_init( &p_vout->change_lock );
 395     vlc_mutex_init( &p_vout->p->vfilter_lock );
 396
 397     /* Mouse coordinates */
 398     var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
 399     var_Create( p_vout, "mouse-moved", VLC_VAR_COORDS );
 400     var_Create( p_vout, "mouse-clicked", VLC_VAR_COORDS );
 401     /* Mouse object (area of interest in a video filter) */
 402     var_Create( p_vout, "mouse-object", VLC_VAR_BOOL );
 403
 404     /* Attach the new object now so we can use var inheritance below */
 405     vlc_object_attach( p_vout, p_parent );
 406
 407     /* Initialize subpicture unit */
 408     p_vout->p->p_spu = spu_Create( p_vout );
 409
 410     /* */
 411     spu_Init( p_vout->p->p_spu );
 412
 413     spu_Attach( p_vout->p->p_spu, VLC_OBJECT(p_vout), true );
 414
 415     /* Take care of some "interface/control" related initialisations */
 416     vout_IntfInit( p_vout );
 417
 418     /* If the parent is not a VOUT object, that means we are at the start of
 419      * the video output pipe */
 420     if( vlc_internals( p_parent )->i_object_type != VLC_OBJECT_VOUT )
 421     {
 422         /* Look for the default filter configuration */
 423         p_vout->p->psz_filter_chain =
 424             var_CreateGetStringCommand( p_vout, "vout-filter" );
 425
 426         /* Apply video filter2 objects on the first vout */
 427         p_vout->p->psz_vf2 =
 428             var_CreateGetStringCommand( p_vout, "video-filter" );
 429
 430         p_vout->p->b_first_vout = true;
 431     }
 432     else
 433     {
 434         /* continue the parent's filter chain */
 435         char *psz_tmp;
 436
 437         /* Ugly hack to jump to our configuration chain */
 438         p_vout->p->psz_filter_chain
 439             = ((vout_thread_t *)p_parent)->p->psz_filter_chain;
 440         p_vout->p->psz_filter_chain
 441             = config_ChainCreate( &psz_tmp, &p_cfg, p_vout->p->psz_filter_chain );
 442         config_ChainDestroy( p_cfg );
 443         free( psz_tmp );
 444
 445         /* Create a video filter2 var ... but don't inherit values */
 446         var_Create( p_vout, "video-filter",
 447                     VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
 448         p_vout->p->psz_vf2 = var_GetString( p_vout, "video-filter" );
 449
 450         /* */
 451         p_vout->p->b_first_vout = false;
 452     }
 453
 454     var_AddCallback( p_vout, "video-filter", VideoFilter2Callback, NULL );
 455     p_vout->p->p_vf2_chain = filter_chain_New( p_vout, "video filter2",
 456         false, video_filter_buffer_allocation_init, NULL, p_vout );
 457
 458     /* Choose the video output module */
 459     if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
 460     {
 461         psz_parser = NULL;
 462     }
 463     else
 464     {
 465         psz_parser = strdup( p_vout->p->psz_filter_chain );
 466         p_vout->p->b_title_show = false;
 467     }
 468
 469     /* Create the vout thread */
 470     char *psz_tmp = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
 471     free( psz_parser );
 472     free( psz_tmp );
 473     p_vout->p->p_cfg = p_cfg;
 474
 475     /* Create a few object variables for interface interaction */
 476     var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 477     text.psz_string = _("Filters");
 478     var_Change( p_vout, "vout-filter", VLC_VAR_SETTEXT, &text, NULL );
 479     var_AddCallback( p_vout, "vout-filter", FilterCallback, NULL );
 480
 481     /* */
 482     DeinterlaceEnable( p_vout );
 483
 484     if( p_vout->p->psz_filter_chain && *p_vout->p->psz_filter_chain )
 485     {
 486         char *psz_tmp;
 487         if( asprintf( &psz_tmp, "%s,none", psz_name ) < 0 )
 488             psz_tmp = strdup( "" );
 489         free( psz_name );
 490         psz_name = psz_tmp;
 491     }
 492     p_vout->p->psz_module_name = psz_name;
 493
 494     /* */
 495     vlc_object_set_destructor( p_vout, vout_Destructor );
 496
 497     /* */
 498     vlc_cond_init( &p_vout->p->change_wait );
 499     if( vlc_clone( &p_vout->p->thread, RunThread, p_vout,
 500                    VLC_THREAD_PRIORITY_OUTPUT ) )
 501     {
 502         spu_Attach( p_vout->p->p_spu, VLC_OBJECT(p_vout), false );
 503         spu_Destroy( p_vout->p->p_spu );
 504         p_vout->p->p_spu = NULL;
 505         vlc_object_release( p_vout );
 506         return NULL;
 507     }
 508
 509     vlc_mutex_lock( &p_vout->change_lock );
 510     while( !p_vout->p->b_ready )
 511     {   /* We are (ab)using the same condition in opposite directions for
 512          * b_ready and b_done. This works because of the strict ordering. */
 513         assert( !p_vout->p->b_done );
 514         vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
 515     }
 516     vlc_mutex_unlock( &p_vout->change_lock );
 517
 518     if( p_vout->p->b_error )
 519     {
 520         msg_Err( p_vout, "video output creation failed" );
 521         vout_CloseAndRelease( p_vout );
 522         return NULL;
 523     }
 524
 525     return p_vout;
 526 }
 527
 528 /*****************************************************************************
 529  * vout_Close: Close a vout created by vout_Create.
 530  *****************************************************************************
 531  * You HAVE to call it on vout created by vout_Create before vlc_object_release.
 532  * You should NEVER call it on vout not obtained through vout_Create
 533  * (like with vout_Request or vlc_object_find.)
 534  * You can use vout_CloseAndRelease() as a convenience method.
 535  *****************************************************************************/
 536 void vout_Close( vout_thread_t *p_vout )
 537 {
 538     assert( p_vout );
 539
 540     vlc_mutex_lock( &p_vout->change_lock );
 541     p_vout->p->b_done = true;
 542     vlc_cond_signal( &p_vout->p->change_wait );
 543     vlc_mutex_unlock( &p_vout->change_lock );
 544
 545     vout_snapshot_End( &p_vout->p->snapshot );
 546
 547     vlc_join( p_vout->p->thread, NULL );
 548 }
 549
 550 /* */
 551 static void vout_Destructor( vlc_object_t * p_this )
 552 {
 553     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 554
 555     /* Make sure the vout was stopped first */
 556     //assert( !p_vout->p_module );
 557
 558     free( p_vout->p->psz_module_name );
 559
 560     /* */
 561     if( p_vout->p->p_spu )
 562         spu_Destroy( p_vout->p->p_spu );
 563
 564     /* Destroy the locks */
 565     vlc_cond_destroy( &p_vout->p->change_wait );
 566     vlc_cond_destroy( &p_vout->p->picture_wait );
 567     vlc_mutex_destroy( &p_vout->picture_lock );
 568     vlc_mutex_destroy( &p_vout->change_lock );
 569     vlc_mutex_destroy( &p_vout->p->vfilter_lock );
 570
 571     /* */
 572     vout_statistic_Clean( &p_vout->p->statistic );
 573
 574     /* */
 575     vout_snapshot_Clean( &p_vout->p->snapshot );
 576
 577     /* */
 578     free( p_vout->p->psz_filter_chain );
 579     free( p_vout->p->psz_title );
 580
 581     config_ChainDestroy( p_vout->p->p_cfg );
 582
 583     free( p_vout->p );
 584
 585 }
 586
 587 /* */
 588 void vout_ChangePause( vout_thread_t *p_vout, bool b_paused, mtime_t i_date )
 589 {
 590     vlc_mutex_lock( &p_vout->change_lock );
 591
 592     assert( !p_vout->p->b_paused || !b_paused );
 593
 594     vlc_mutex_lock( &p_vout->picture_lock );
 595
 596     p_vout->p->i_picture_displayed_date = 0;
 597
 598     if( p_vout->p->b_paused )
 599     {
 600         const mtime_t i_duration = i_date - p_vout->p->i_pause_date;
 601
 602         for( int i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
 603         {
 604             picture_t *p_pic = PP_RENDERPICTURE[i_index];
 605
 606             if( p_pic->i_status == READY_PICTURE )
 607                 p_pic->date += i_duration;
 608         }
 609         vlc_cond_signal( &p_vout->p->picture_wait );
 610         vlc_mutex_unlock( &p_vout->picture_lock );
 611
 612         spu_OffsetSubtitleDate( p_vout->p->p_spu, i_duration );
 613     }
 614     else
 615     {
 616         vlc_mutex_unlock( &p_vout->picture_lock );
 617     }
 618     p_vout->p->b_paused = b_paused;
 619     p_vout->p->i_pause_date = i_date;
 620
 621     vlc_mutex_unlock( &p_vout->change_lock );
 622 }
 623
 624 void vout_GetResetStatistic( vout_thread_t *p_vout, int *pi_displayed, int *pi_lost )
 625 {
 626     vout_statistic_GetReset( &p_vout->p->statistic,
 627                              pi_displayed, pi_lost );
 628 }
 629
 630 void vout_Flush( vout_thread_t *p_vout, mtime_t i_date )
 631 {
 632     vlc_mutex_lock( &p_vout->picture_lock );
 633     p_vout->p->i_picture_displayed_date = 0;
 634     for( int i = 0; i < p_vout->render.i_pictures; i++ )
 635     {
 636         picture_t *p_pic = p_vout->render.pp_picture[i];
 637
 638         if( p_pic->i_status == READY_PICTURE ||
 639             p_pic->i_status == DISPLAYED_PICTURE )
 640         {
 641             /* We cannot change picture status if it is in READY_PICTURE state,
 642              * Just make sure they won't be displayed */
 643             if( p_pic->date > i_date )
 644                 p_pic->date = i_date;
 645         }
 646     }
 647     vlc_cond_signal( &p_vout->p->picture_wait );
 648     vlc_mutex_unlock( &p_vout->picture_lock );
 649 }
 650
 651 void vout_FixLeaks( vout_thread_t *p_vout, bool b_forced )
 652 {
 653     int i_pic, i_ready_pic;
 654
 655     vlc_mutex_lock( &p_vout->picture_lock );
 656
 657     for( i_pic = 0, i_ready_pic = 0; i_pic < p_vout->render.i_pictures && !b_forced; i_pic++ )
 658     {
 659         const picture_t *p_pic = p_vout->render.pp_picture[i_pic];
 660
 661         if( p_pic->i_status == READY_PICTURE )
 662         {
 663             i_ready_pic++;
 664             /* If we have at least 2 ready pictures, wait for the vout thread to
 665              * process one */
 666             if( i_ready_pic >= 2 )
 667                 break;
 668
 669             continue;
 670         }
 671
 672         if( p_pic->i_status == DISPLAYED_PICTURE )
 673         {
 674             /* If at least one displayed picture is not referenced
 675              * let vout free it */
 676             if( p_pic->i_refcount == 0 )
 677                 break;
 678         }
 679     }
 680     if( i_pic < p_vout->render.i_pictures && !b_forced )
 681     {
 682         vlc_mutex_unlock( &p_vout->picture_lock );
 683         return;
 684     }
 685
 686     /* Too many pictures are still referenced, there is probably a bug
 687      * with the decoder */
 688     if( !b_forced )
 689         msg_Err( p_vout, "pictures leaked, resetting the heap" );
 690
 691     /* Just free all the pictures */
 692     for( i_pic = 0; i_pic < p_vout->render.i_pictures; i_pic++ )
 693     {
 694         picture_t *p_pic = p_vout->render.pp_picture[i_pic];
 695
 696         msg_Dbg( p_vout, "[%d] %d %d", i_pic, p_pic->i_status, p_pic->i_refcount );
 697         p_pic->i_refcount = 0;
 698
 699         switch( p_pic->i_status )
 700         {
 701         case READY_PICTURE:
 702         case DISPLAYED_PICTURE:
 703         case RESERVED_PICTURE:
 704             if( p_pic != p_vout->p->p_picture_displayed )
 705                 vout_UsePictureLocked( p_vout, p_pic );
 706             break;
 707         }
 708     }
 709     vlc_cond_signal( &p_vout->p->picture_wait );
 710     vlc_mutex_unlock( &p_vout->picture_lock );
 711 }
 712 void vout_NextPicture( vout_thread_t *p_vout, mtime_t *pi_duration )
 713 {
 714     vlc_mutex_lock( &p_vout->picture_lock );
 715
 716     const mtime_t i_displayed_date = p_vout->p->i_picture_displayed_date;
 717
 718     p_vout->p->b_picture_displayed = false;
 719     p_vout->p->b_picture_empty = false;
 720     if( p_vout->p->p_picture_displayed )
 721     {
 722         p_vout->p->p_picture_displayed->date = 1;
 723         vlc_cond_signal( &p_vout->p->picture_wait );
 724     }
 725
 726     while( !p_vout->p->b_picture_displayed && !p_vout->p->b_picture_empty )
 727         vlc_cond_wait( &p_vout->p->picture_wait, &p_vout->picture_lock );
 728
 729     *pi_duration = __MAX( p_vout->p->i_picture_displayed_date - i_displayed_date, 0 );
 730
 731     /* TODO advance subpicture by the duration ... */
 732
 733     vlc_mutex_unlock( &p_vout->picture_lock );
 734 }
 735
 736 void vout_DisplayTitle( vout_thread_t *p_vout, const char *psz_title )
 737 {
 738     assert( psz_title );
 739
 740     if( !var_InheritBool( p_vout, "osd" ) )
 741         return;
 742
 743     vlc_mutex_lock( &p_vout->change_lock );
 744     free( p_vout->p->psz_title );
 745     p_vout->p->psz_title = strdup( psz_title );
 746     vlc_mutex_unlock( &p_vout->change_lock );
 747 }
 748
 749 spu_t *vout_GetSpu( vout_thread_t *p_vout )
 750 {
 751     return p_vout->p->p_spu;
 752 }
 753
 754 /*****************************************************************************
 755  * InitThread: initialize video output thread
 756  *****************************************************************************
 757  * This function is called from RunThread and performs the second step of the
 758  * initialization. It returns 0 on success. Note that the thread's flag are not
 759  * modified inside this function.
 760  * XXX You have to enter it with change_lock taken.
 761  *****************************************************************************/
 762 static int ChromaCreate( vout_thread_t *p_vout );
 763 static void ChromaDestroy( vout_thread_t *p_vout );
 764
 765 static int InitThread( vout_thread_t *p_vout )
 766 {
 767     int i;
 768
 769     /* Initialize output method, it allocates direct buffers for us */
 770     if( vout_InitWrapper( p_vout ) )
 771         return VLC_EGENERIC;
 772
 773     p_vout->p->p_picture_displayed = NULL;
 774
 775     if( !I_OUTPUTPICTURES )
 776     {
 777         msg_Err( p_vout, "plugin was unable to allocate at least "
 778                          "one direct buffer" );
 779         vout_EndWrapper( p_vout );
 780         return VLC_EGENERIC;
 781     }
 782
 783     if( I_OUTPUTPICTURES > VOUT_MAX_PICTURES )
 784     {
 785         msg_Err( p_vout, "plugin allocated too many direct buffers, "
 786                          "our internal buffers must have overflown." );
 787         vout_EndWrapper( p_vout );
 788         return VLC_EGENERIC;
 789     }
 790
 791     msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
 792
 793     if( !p_vout->fmt_out.i_width || !p_vout->fmt_out.i_height )
 794     {
 795         p_vout->fmt_out.i_width = p_vout->fmt_out.i_visible_width =
 796             p_vout->output.i_width;
 797         p_vout->fmt_out.i_height = p_vout->fmt_out.i_visible_height =
 798             p_vout->output.i_height;
 799         p_vout->fmt_out.i_x_offset =  p_vout->fmt_out.i_y_offset = 0;
 800
 801         p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
 802     }
 803     if( !p_vout->fmt_out.i_sar_num || !p_vout->fmt_out.i_sar_num )
 804     {
 805         p_vout->fmt_out.i_sar_num = p_vout->output.i_aspect *
 806             p_vout->fmt_out.i_height;
 807         p_vout->fmt_out.i_sar_den = VOUT_ASPECT_FACTOR *
 808             p_vout->fmt_out.i_width;
 809     }
 810
 811     vlc_ureduce( &p_vout->fmt_out.i_sar_num, &p_vout->fmt_out.i_sar_den,
 812                  p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den, 0 );
 813
 814     /* FIXME removed the need of both fmt_* and heap infos */
 815     /* Calculate shifts from system-updated masks */
 816     PictureHeapFixRgb( &p_vout->render );
 817     VideoFormatImportRgb( &p_vout->fmt_render, &p_vout->render );
 818
 819     PictureHeapFixRgb( &p_vout->output );
 820     VideoFormatImportRgb( &p_vout->fmt_out, &p_vout->output );
 821
 822     /* print some usefull debug info about different vout formats
 823      */
 824     msg_Dbg( p_vout, "pic render sz %ix%i, of (%i,%i), vsz %ix%i, 4cc %4.4s, sar %i:%i, msk r0x%x g0x%x b0x%x",
 825              p_vout->fmt_render.i_width, p_vout->fmt_render.i_height,
 826              p_vout->fmt_render.i_x_offset, p_vout->fmt_render.i_y_offset,
 827              p_vout->fmt_render.i_visible_width,
 828              p_vout->fmt_render.i_visible_height,
 829              (char*)&p_vout->fmt_render.i_chroma,
 830              p_vout->fmt_render.i_sar_num, p_vout->fmt_render.i_sar_den,
 831              p_vout->fmt_render.i_rmask, p_vout->fmt_render.i_gmask, p_vout->fmt_render.i_bmask );
 832
 833     msg_Dbg( p_vout, "pic in sz %ix%i, of (%i,%i), vsz %ix%i, 4cc %4.4s, sar %i:%i, msk r0x%x g0x%x b0x%x",
 834              p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
 835              p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
 836              p_vout->fmt_in.i_visible_width,
 837              p_vout->fmt_in.i_visible_height,
 838              (char*)&p_vout->fmt_in.i_chroma,
 839              p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den,
 840              p_vout->fmt_in.i_rmask, p_vout->fmt_in.i_gmask, p_vout->fmt_in.i_bmask );
 841
 842     msg_Dbg( p_vout, "pic out sz %ix%i, of (%i,%i), vsz %ix%i, 4cc %4.4s, sar %i:%i, msk r0x%x g0x%x b0x%x",
 843              p_vout->fmt_out.i_width, p_vout->fmt_out.i_height,
 844              p_vout->fmt_out.i_x_offset, p_vout->fmt_out.i_y_offset,
 845              p_vout->fmt_out.i_visible_width,
 846              p_vout->fmt_out.i_visible_height,
 847              (char*)&p_vout->fmt_out.i_chroma,
 848              p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den,
 849              p_vout->fmt_out.i_rmask, p_vout->fmt_out.i_gmask, p_vout->fmt_out.i_bmask );
 850
 851     assert( p_vout->output.i_width == p_vout->render.i_width &&
 852             p_vout->output.i_height == p_vout->render.i_height &&
 853             p_vout->output.i_chroma == p_vout->render.i_chroma );
 854     /* Check whether we managed to create direct buffers similar to
 855      * the render buffers, ie same size and chroma */
 856
 857     /* Cool ! We have direct buffers, we can ask the decoder to
 858      * directly decode into them ! Map the first render buffers to
 859      * the first direct buffers, but keep the first direct buffer
 860      * for memcpy operations */
 861     for( i = 1; i < VOUT_MAX_PICTURES; i++ )
 862     {
 863         if( p_vout->p_picture[ i ].i_type != DIRECT_PICTURE &&
 864             I_RENDERPICTURES >= VOUT_MIN_DIRECT_PICTURES - 1 &&
 865             p_vout->p_picture[ i - 1 ].i_type == DIRECT_PICTURE )
 866         {
 867             /* We have enough direct buffers so there's no need to
 868              * try to use system memory buffers. */
 869             break;
 870         }
 871         PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
 872         I_RENDERPICTURES++;
 873     }
 874
 875     msg_Dbg( p_vout, "direct render, mapping "
 876              "render pictures 0-%i to system pictures 1-%i",
 877              VOUT_MAX_PICTURES - 2, VOUT_MAX_PICTURES - 1 );
 878
 879     return VLC_SUCCESS;
 880 }
 881
 882 /*****************************************************************************
 883  * RunThread: video output thread
 884  *****************************************************************************
 885  * Video output thread. This function does only returns when the thread is
 886  * terminated. It handles the pictures arriving in the video heap and the
 887  * display device events.
 888  *****************************************************************************/
 889 static void* RunThread( void *p_this )
 890 {
 891     vout_thread_t *p_vout = p_this;
 892     bool            b_has_wrapper;
 893     int             i_idle_loops = 0;  /* loops without displaying a picture */
 894     int             i_picture_qtype_last = QTYPE_NONE;
 895     bool            b_picture_interlaced_last = false;
 896     mtime_t         i_picture_interlaced_last_date;
 897
 898     /*
 899      * Initialize thread
 900      */
 901     b_has_wrapper = !vout_OpenWrapper( p_vout, p_vout->p->psz_module_name );
 902
 903     vlc_mutex_lock( &p_vout->change_lock );
 904
 905     if( b_has_wrapper )
 906         p_vout->p->b_error = InitThread( p_vout );
 907     else
 908         p_vout->p->b_error = true;
 909
 910     /* signal the creation of the vout */
 911     p_vout->p->b_ready = true;
 912     vlc_cond_signal( &p_vout->p->change_wait );
 913
 914     if( p_vout->p->b_error )
 915         goto exit_thread;
 916
 917     /* */
 918     const bool b_drop_late = var_CreateGetBool( p_vout, "drop-late-frames" );
 919     i_picture_interlaced_last_date = mdate();
 920
 921     /*
 922      * Main loop - it is not executed if an error occurred during
 923      * initialization
 924      */
 925     while( !p_vout->p->b_done && !p_vout->p->b_error )
 926     {
 927         /* Initialize loop variables */
 928         const mtime_t current_date = mdate();
 929         picture_t *p_picture;
 930         picture_t *p_filtered_picture;
 931         mtime_t display_date;
 932         picture_t *p_directbuffer;
 933         int i_index;
 934
 935         if( p_vout->p->b_title_show && p_vout->p->psz_title )
 936             DisplayTitleOnOSD( p_vout );
 937
 938         vlc_mutex_lock( &p_vout->picture_lock );
 939
 940         /* Look for the earliest picture but after the last displayed one */
 941         picture_t *p_last = p_vout->p->p_picture_displayed;;
 942
 943         p_picture = NULL;
 944         for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
 945         {
 946             picture_t *p_pic = PP_RENDERPICTURE[i_index];
 947
 948             if( p_pic->i_status != READY_PICTURE )
 949                 continue;
 950
 951             if( p_vout->p->b_paused && p_last && p_last->date > 1 )
 952                 continue;
 953
 954             if( p_last && p_pic != p_last && p_pic->date <= p_last->date )
 955             {
 956                 /* Drop old picture */
 957                 vout_UsePictureLocked( p_vout, p_pic );
 958             }
 959             else if( !p_vout->p->b_paused && !p_pic->b_force && p_pic != p_last &&
 960                      p_pic->date < current_date + p_vout->p->render_time &&
 961                      b_drop_late )
 962             {
 963                 /* Picture is late: it will be destroyed and the thread
 964                  * will directly choose the next picture */
 965                 vout_UsePictureLocked( p_vout, p_pic );
 966                 vout_statistic_Update( &p_vout->p->statistic, 0, 1 );
 967
 968                 msg_Warn( p_vout, "late picture skipped (%"PRId64" > %d)",
 969                                   current_date - p_pic->date, - p_vout->p->render_time );
 970             }
 971             else if( ( !p_last || p_last->date < p_pic->date ) &&
 972                      ( p_picture == NULL || p_pic->date < p_picture->date ) )
 973             {
 974                 p_picture = p_pic;
 975             }
 976         }
 977         if( !p_picture )
 978         {
 979             p_picture = p_last;
 980
 981             if( !p_vout->p->b_picture_empty )
 982             {
 983                 p_vout->p->b_picture_empty = true;
 984                 vlc_cond_signal( &p_vout->p->picture_wait );
 985             }
 986         }
 987
 988         display_date = 0;
 989         if( p_picture )
 990         {
 991             display_date = p_picture->date;
 992
 993             /* If we found better than the last picture, destroy it */
 994             if( p_last && p_picture != p_last )
 995             {
 996                 vout_UsePictureLocked( p_vout, p_last );
 997                 p_vout->p->p_picture_displayed = p_last = NULL;
 998             }
 999
1000             /* Compute FPS rate */
1001             p_vout->p->p_fps_sample[ p_vout->p->c_fps_samples++ % VOUT_FPS_SAMPLES ] = display_date;
1002
1003             if( !p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
1004             {
1005                 /* A picture is ready to be rendered, but its rendering date
1006                  * is far from the current one so the thread will perform an
1007                  * empty loop as if no picture were found. The picture state
1008                  * is unchanged */
1009                 p_picture    = NULL;
1010                 display_date = 0;
1011             }
1012             else if( p_picture == p_last )
1013             {
1014                 /* We are asked to repeat the previous picture, but we first
1015                  * wait for a couple of idle loops */
1016                 if( i_idle_loops < 4 )
1017                 {
1018                     p_picture    = NULL;
1019                     display_date = 0;
1020                 }
1021                 else
1022                 {
1023                     /* We set the display date to something high, otherwise
1024                      * we'll have lots of problems with late pictures */
1025                     display_date = current_date + p_vout->p->render_time;
1026                 }
1027             }
1028             else if( p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
1029             {
1030                 display_date = current_date + VOUT_DISPLAY_DELAY;
1031             }
1032
1033             if( p_picture )
1034             {
1035                 if( p_picture->date > 1 )
1036                 {
1037                     p_vout->p->i_picture_displayed_date = p_picture->date;
1038                     if( p_picture != p_last && !p_vout->p->b_picture_displayed )
1039                     {
1040                         p_vout->p->b_picture_displayed = true;
1041                         vlc_cond_signal( &p_vout->p->picture_wait );
1042                     }
1043                 }
1044                 p_vout->p->p_picture_displayed = p_picture;
1045             }
1046         }
1047
1048         /* */
1049         const int i_postproc_type = p_vout->p->i_picture_qtype;
1050         const int i_postproc_state = (p_vout->p->i_picture_qtype != QTYPE_NONE) - (i_picture_qtype_last != QTYPE_NONE);
1051
1052         const bool b_picture_interlaced = p_vout->p->b_picture_interlaced;
1053         const int  i_picture_interlaced_state = (!!p_vout->p->b_picture_interlaced) - (!!b_picture_interlaced_last);
1054
1055         vlc_mutex_unlock( &p_vout->picture_lock );
1056
1057         if( p_picture == NULL )
1058             i_idle_loops++;
1059
1060         p_filtered_picture = NULL;
1061         if( p_picture )
1062         {
1063             vlc_mutex_lock( &p_vout->p->vfilter_lock );
1064             p_filtered_picture = filter_chain_VideoFilter( p_vout->p->p_vf2_chain,
1065                                                            p_picture );
1066             vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1067         }
1068
1069         const bool b_snapshot = vout_snapshot_IsRequested( &p_vout->p->snapshot );
1070
1071         /*
1072          * Check for subpictures to display
1073          */
1074         mtime_t spu_render_time;
1075         if( p_vout->p->b_paused )
1076             spu_render_time = p_vout->p->i_pause_date;
1077         else if( p_picture )
1078             spu_render_time = p_picture->date > 1 ? p_picture->date : mdate();
1079         else
1080             spu_render_time = 0;
1081
1082         subpicture_t *p_subpic = spu_SortSubpictures( p_vout->p->p_spu,
1083                                                       spu_render_time,
1084                                                       b_snapshot );
1085         /*
1086          * Perform rendering
1087          */
1088         vout_statistic_Update( &p_vout->p->statistic, 1, 0 );
1089         p_directbuffer = vout_RenderPicture( p_vout,
1090                                              p_filtered_picture, p_subpic,
1091                                              spu_render_time );
1092
1093         /*
1094          * Take a snapshot if requested
1095          */
1096         if( p_directbuffer && b_snapshot )
1097             vout_snapshot_Set( &p_vout->p->snapshot,
1098                                &p_vout->fmt_out, p_directbuffer );
1099
1100         /*
1101          * Call the plugin-specific rendering method if there is one
1102          */
1103         if( p_filtered_picture != NULL && p_directbuffer != NULL )
1104         {
1105             /* Render the direct buffer returned by vout_RenderPicture */
1106             vout_RenderWrapper( p_vout, p_directbuffer );
1107         }
1108
1109         /*
1110          * Sleep, wake up
1111          */
1112         if( display_date != 0 && p_directbuffer != NULL )
1113         {
1114             mtime_t current_render_time = mdate() - current_date;
1115             /* if render time is very large we don't include it in the mean */
1116             if( current_render_time < p_vout->p->render_time +
1117                 VOUT_DISPLAY_DELAY )
1118             {
1119                 /* Store render time using a sliding mean weighting to
1120                  * current value in a 3 to 1 ratio*/
1121                 p_vout->p->render_time *= 3;
1122                 p_vout->p->render_time += current_render_time;
1123                 p_vout->p->render_time >>= 2;
1124             }
1125             else
1126                 msg_Dbg( p_vout, "skipped big render time %d > %d", (int) current_render_time,
1127                  (int) (p_vout->p->render_time +VOUT_DISPLAY_DELAY ) ) ;
1128         }
1129
1130         /* Give back change lock */
1131         vlc_mutex_unlock( &p_vout->change_lock );
1132
1133         /* Sleep a while or until a given date */
1134         if( display_date != 0 )
1135         {
1136             /* If there are *vout* filters in the chain, better give them the picture
1137              * in advance */
1138             if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
1139             {
1140                 mwait( display_date - VOUT_MWAIT_TOLERANCE );
1141             }
1142         }
1143         else
1144         {
1145             /* Wait until a frame is being sent or a spurious wakeup (not a problem here) */
1146             vlc_mutex_lock( &p_vout->picture_lock );
1147             vlc_cond_timedwait( &p_vout->p->picture_wait, &p_vout->picture_lock, current_date + VOUT_IDLE_SLEEP );
1148             vlc_mutex_unlock( &p_vout->picture_lock );
1149         }
1150
1151         /* On awakening, take back lock and send immediately picture
1152          * to display. */
1153         /* Note: p_vout->p->b_done could be true here and now */
1154         vlc_mutex_lock( &p_vout->change_lock );
1155
1156         /*
1157          * Display the previously rendered picture
1158          */
1159         if( p_filtered_picture != NULL && p_directbuffer != NULL )
1160         {
1161             /* Display the direct buffer returned by vout_RenderPicture */
1162             vout_DisplayWrapper( p_vout, p_directbuffer );
1163
1164             /* Tell the vout this was the last picture and that it does not
1165              * need to be forced anymore. */
1166             p_picture->b_force = false;
1167         }
1168
1169         /* Drop the filtered picture if created by video filters */
1170         if( p_filtered_picture != NULL && p_filtered_picture != p_picture )
1171         {
1172             vlc_mutex_lock( &p_vout->picture_lock );
1173             vout_UsePictureLocked( p_vout, p_filtered_picture );
1174             vlc_mutex_unlock( &p_vout->picture_lock );
1175         }
1176
1177         if( p_picture != NULL )
1178         {
1179             /* Reinitialize idle loop count */
1180             i_idle_loops = 0;
1181         }
1182
1183         /*
1184          * Check events and manage thread
1185          */
1186         if( vout_ManageWrapper( p_vout ) )
1187         {
1188             /* A fatal error occurred, and the thread must terminate
1189              * immediately, without displaying anything - setting b_error to 1
1190              * causes the immediate end of the main while() loop. */
1191             // FIXME pf_end
1192             p_vout->p->b_error = 1;
1193             break;
1194         }
1195
1196         if( p_vout->i_changes & VOUT_ON_TOP_CHANGE )
1197             p_vout->i_changes &= ~VOUT_ON_TOP_CHANGE;
1198
1199         if( p_vout->i_changes & VOUT_PICTURE_BUFFERS_CHANGE )
1200         {
1201             /* This happens when the picture buffers need to be recreated.
1202              * This is useful on multimonitor displays for instance.
1203              *
1204              * Warning: This only works when the vout creates only 1 picture
1205              * buffer!! */
1206             p_vout->i_changes &= ~VOUT_PICTURE_BUFFERS_CHANGE;
1207
1208             vlc_mutex_lock( &p_vout->picture_lock );
1209
1210             vout_EndWrapper( p_vout );
1211
1212             I_OUTPUTPICTURES = I_RENDERPICTURES = 0;
1213
1214             p_vout->p->b_error = InitThread( p_vout );
1215             if( p_vout->p->b_error )
1216                 msg_Err( p_vout, "InitThread after VOUT_PICTURE_BUFFERS_CHANGE failed" );
1217
1218             vlc_cond_signal( &p_vout->p->picture_wait );
1219             vlc_mutex_unlock( &p_vout->picture_lock );
1220
1221             if( p_vout->p->b_error )
1222                 break;
1223         }
1224
1225         /* Post processing */
1226         if( i_postproc_state == 1 )
1227             PostProcessEnable( p_vout );
1228         else if( i_postproc_state == -1 )
1229             PostProcessDisable( p_vout );
1230         if( i_postproc_state != 0 )
1231             i_picture_qtype_last = i_postproc_type;
1232
1233         /* Deinterlacing
1234          * Wait 30s before quiting interlacing mode */
1235         if( ( i_picture_interlaced_state == 1 ) ||
1236             ( i_picture_interlaced_state == -1 && i_picture_interlaced_last_date + 30000000 < current_date ) )
1237         {
1238             DeinterlaceNeeded( p_vout, b_picture_interlaced );
1239             b_picture_interlaced_last = b_picture_interlaced;
1240         }
1241         if( b_picture_interlaced )
1242             i_picture_interlaced_last_date = current_date;
1243
1244
1245         /* Check for "video filter2" changes */
1246         vlc_mutex_lock( &p_vout->p->vfilter_lock );
1247         if( p_vout->p->psz_vf2 )
1248         {
1249             es_format_t fmt;
1250
1251             es_format_Init( &fmt, VIDEO_ES, p_vout->fmt_render.i_chroma );
1252             fmt.video = p_vout->fmt_render;
1253             filter_chain_Reset( p_vout->p->p_vf2_chain, &fmt, &fmt );
1254
1255             if( filter_chain_AppendFromString( p_vout->p->p_vf2_chain,
1256                                                p_vout->p->psz_vf2 ) < 0 )
1257                 msg_Err( p_vout, "Video filter chain creation failed" );
1258
1259             free( p_vout->p->psz_vf2 );
1260             p_vout->p->psz_vf2 = NULL;
1261
1262             if( i_picture_qtype_last != QTYPE_NONE )
1263                 PostProcessSetFilterQuality( p_vout );
1264         }
1265         vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1266     }
1267
1268     /*
1269      * Error loop - wait until the thread destruction is requested
1270      */
1271     if( p_vout->p->b_error )
1272         ErrorThread( p_vout );
1273
1274     /* Clean thread */
1275     CleanThread( p_vout );
1276
1277 exit_thread:
1278     /* End of thread */
1279     EndThread( p_vout );
1280     vlc_mutex_unlock( &p_vout->change_lock );
1281
1282     if( b_has_wrapper )
1283         vout_CloseWrapper( p_vout );
1284
1285     return NULL;
1286 }
1287
1288 /*****************************************************************************
1289  * ErrorThread: RunThread() error loop
1290  *****************************************************************************
1291  * This function is called when an error occurred during thread main's loop.
1292  * The thread can still receive feed, but must be ready to terminate as soon
1293  * as possible.
1294  *****************************************************************************/
1295 static void ErrorThread( vout_thread_t *p_vout )
1296 {
1297     /* Wait until a `close' order */
1298     while( !p_vout->p->b_done )
1299         vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
1300 }
1301
1302 /*****************************************************************************
1303  * CleanThread: clean up after InitThread
1304  *****************************************************************************
1305  * This function is called after a sucessful
1306  * initialization. It frees all resources allocated by InitThread.
1307  * XXX You have to enter it with change_lock taken.
1308  *****************************************************************************/
1309 static void CleanThread( vout_thread_t *p_vout )
1310 {
1311     int     i_index;                                        /* index in heap */
1312
1313     /* Destroy all remaining pictures */
1314     for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++ )
1315     {
1316         if ( p_vout->p_picture[i_index].i_type == MEMORY_PICTURE )
1317         {
1318             free( p_vout->p_picture[i_index].p_data_orig );
1319         }
1320     }
1321
1322     /* Destroy translation tables */
1323     if( !p_vout->p->b_error )
1324         vout_EndWrapper( p_vout );
1325 }
1326
1327 /*****************************************************************************
1328  * EndThread: thread destruction
1329  *****************************************************************************
1330  * This function is called when the thread ends.
1331  * It frees all resources not allocated by InitThread.
1332  * XXX You have to enter it with change_lock taken.
1333  *****************************************************************************/
1334 static void EndThread( vout_thread_t *p_vout )
1335 {
1336     /* FIXME does that function *really* need to be called inside the thread ? */
1337
1338     /* Detach subpicture unit from both input and vout */
1339     spu_Attach( p_vout->p->p_spu, VLC_OBJECT(p_vout), false );
1340     vlc_object_detach( p_vout->p->p_spu );
1341
1342     /* Destroy the video filters2 */
1343     filter_chain_Delete( p_vout->p->p_vf2_chain );
1344 }
1345
1346 /* following functions are local */
1347
1348 /**
1349  * This function copies all RGB informations from a picture_heap_t into
1350  * a video_format_t
1351  */
1352 static void VideoFormatImportRgb( video_format_t *p_fmt, const picture_heap_t *p_heap )
1353 {
1354     p_fmt->i_rmask = p_heap->i_rmask;
1355     p_fmt->i_gmask = p_heap->i_gmask;
1356     p_fmt->i_bmask = p_heap->i_bmask;
1357     p_fmt->i_rrshift = p_heap->i_rrshift;
1358     p_fmt->i_lrshift = p_heap->i_lrshift;
1359     p_fmt->i_rgshift = p_heap->i_rgshift;
1360     p_fmt->i_lgshift = p_heap->i_lgshift;
1361     p_fmt->i_rbshift = p_heap->i_rbshift;
1362     p_fmt->i_lbshift = p_heap->i_lbshift;
1363 }
1364
1365 /**
1366  * This funtion copes all RGB informations from a video_format_t into
1367  * a picture_heap_t
1368  */
1369 static void VideoFormatExportRgb( const video_format_t *p_fmt, picture_heap_t *p_heap )
1370 {
1371     p_heap->i_rmask = p_fmt->i_rmask;
1372     p_heap->i_gmask = p_fmt->i_gmask;
1373     p_heap->i_bmask = p_fmt->i_bmask;
1374     p_heap->i_rrshift = p_fmt->i_rrshift;
1375     p_heap->i_lrshift = p_fmt->i_lrshift;
1376     p_heap->i_rgshift = p_fmt->i_rgshift;
1377     p_heap->i_lgshift = p_fmt->i_lgshift;
1378     p_heap->i_rbshift = p_fmt->i_rbshift;
1379     p_heap->i_lbshift = p_fmt->i_lbshift;
1380 }
1381
1382 /**
1383  * This function computes rgb shifts from masks
1384  */
1385 static void PictureHeapFixRgb( picture_heap_t *p_heap )
1386 {
1387     video_format_t fmt;
1388
1389     /* */
1390     fmt.i_chroma = p_heap->i_chroma;
1391     VideoFormatImportRgb( &fmt, p_heap );
1392
1393     /* */
1394     video_format_FixRgb( &fmt );
1395
1396     VideoFormatExportRgb( &fmt, p_heap );
1397 }
1398
1399 /*****************************************************************************
1400  * object variables callbacks: a bunch of object variables are used by the
1401  * interfaces to interact with the vout.
1402  *****************************************************************************/
1403 static int FilterCallback( vlc_object_t *p_this, char const *psz_cmd,
1404                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1405 {
1406     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1407     input_thread_t *p_input;
1408     (void)psz_cmd; (void)oldval; (void)p_data;
1409
1410     p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
1411                                                  FIND_PARENT );
1412     if (!p_input)
1413     {
1414         msg_Err( p_vout, "Input not found" );
1415         return VLC_EGENERIC;
1416     }
1417
1418     var_SetBool( p_vout, "intf-change", true );
1419
1420     /* Modify input as well because the vout might have to be restarted */
1421     var_Create( p_input, "vout-filter", VLC_VAR_STRING );
1422     var_SetString( p_input, "vout-filter", newval.psz_string );
1423
1424     /* Now restart current video stream */
1425     input_Control( p_input, INPUT_RESTART_ES, -VIDEO_ES );
1426     vlc_object_release( p_input );
1427
1428     return VLC_SUCCESS;
1429 }
1430
1431 /*****************************************************************************
1432  * Video Filter2 stuff
1433  *****************************************************************************/
1434 static int VideoFilter2Callback( vlc_object_t *p_this, char const *psz_cmd,
1435                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1436 {
1437     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1438     (void)psz_cmd; (void)oldval; (void)p_data;
1439
1440     vlc_mutex_lock( &p_vout->p->vfilter_lock );
1441     p_vout->p->psz_vf2 = strdup( newval.psz_string );
1442     vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1443
1444     return VLC_SUCCESS;
1445 }
1446
1447 /*****************************************************************************
1448  * Post-processing
1449  *****************************************************************************/
1450 static bool PostProcessIsPresent( const char *psz_filter )
1451 {
1452     const char  *psz_pp = "postproc";
1453     const size_t i_pp = strlen(psz_pp);
1454     return psz_filter &&
1455            !strncmp( psz_filter, psz_pp, strlen(psz_pp) ) &&
1456            ( psz_filter[i_pp] == '\0' || psz_filter[i_pp] == ':' );
1457 }
1458
1459 static int PostProcessCallback( vlc_object_t *p_this, char const *psz_cmd,
1460                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1461 {
1462     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1463     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
1464
1465     static const char *psz_pp = "postproc";
1466
1467     char *psz_vf2 = var_GetString( p_vout, "video-filter" );
1468
1469     if( newval.i_int <= 0 )
1470     {
1471         if( PostProcessIsPresent( psz_vf2 ) )
1472         {
1473             strcpy( psz_vf2, &psz_vf2[strlen(psz_pp)] );
1474             if( *psz_vf2 == ':' )
1475                 strcpy( psz_vf2, &psz_vf2[1] );
1476         }
1477     }
1478     else
1479     {
1480         if( !PostProcessIsPresent( psz_vf2 ) )
1481         {
1482             if( psz_vf2 )
1483             {
1484                 char *psz_tmp = psz_vf2;
1485                 if( asprintf( &psz_vf2, "%s:%s", psz_pp, psz_tmp ) < 0 )
1486                     psz_vf2 = psz_tmp;
1487                 else
1488                     free( psz_tmp );
1489             }
1490             else
1491             {
1492                 psz_vf2 = strdup( psz_pp );
1493             }
1494         }
1495     }
1496     if( psz_vf2 )
1497     {
1498         var_SetString( p_vout, "video-filter", psz_vf2 );
1499         free( psz_vf2 );
1500     }
1501
1502     return VLC_SUCCESS;
1503 }
1504 static void PostProcessEnable( vout_thread_t *p_vout )
1505 {
1506     vlc_value_t text;
1507     msg_Dbg( p_vout, "Post-processing available" );
1508     var_Create( p_vout, "postprocess", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
1509     text.psz_string = _("Post processing");
1510     var_Change( p_vout, "postprocess", VLC_VAR_SETTEXT, &text, NULL );
1511
1512     for( int i = 0; i <= 6; i++ )
1513     {
1514         vlc_value_t val;
1515         vlc_value_t text;
1516         char psz_text[1+1];
1517
1518         val.i_int = i;
1519         snprintf( psz_text, sizeof(psz_text), "%d", i );
1520         if( i == 0 )
1521             text.psz_string = _("Disable");
1522         else
1523             text.psz_string = psz_text;
1524         var_Change( p_vout, "postprocess", VLC_VAR_ADDCHOICE, &val, &text );
1525     }
1526     var_AddCallback( p_vout, "postprocess", PostProcessCallback, NULL );
1527
1528     /* */
1529     char *psz_filter = var_GetNonEmptyString( p_vout, "video-filter" );
1530     int i_postproc_q = 0;
1531     if( PostProcessIsPresent( psz_filter ) )
1532         i_postproc_q = var_CreateGetInteger( p_vout, "postproc-q" );
1533
1534     var_SetInteger( p_vout, "postprocess", i_postproc_q );
1535
1536     free( psz_filter );
1537 }
1538 static void PostProcessDisable( vout_thread_t *p_vout )
1539 {
1540     msg_Dbg( p_vout, "Post-processing no more available" );
1541     var_Destroy( p_vout, "postprocess" );
1542 }
1543 static void PostProcessSetFilterQuality( vout_thread_t *p_vout )
1544 {
1545     vlc_object_t *p_pp = vlc_object_find_name( p_vout, "postproc", FIND_CHILD );
1546     if( !p_pp )
1547         return;
1548
1549     var_SetInteger( p_pp, "postproc-q", var_GetInteger( p_vout, "postprocess" ) );
1550     vlc_object_release( p_pp );
1551 }
1552
1553
1554 static void DisplayTitleOnOSD( vout_thread_t *p_vout )
1555 {
1556     const mtime_t i_start = mdate();
1557     const mtime_t i_stop = i_start + INT64_C(1000) * p_vout->p->i_title_timeout;
1558
1559     if( i_stop <= i_start )
1560         return;
1561
1562     vlc_assert_locked( &p_vout->change_lock );
1563
1564     vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN,
1565                            p_vout->p->psz_title, NULL,
1566                            p_vout->p->i_title_position,
1567                            30 + p_vout->fmt_in.i_width
1568                               - p_vout->fmt_in.i_visible_width
1569                               - p_vout->fmt_in.i_x_offset,
1570                            20 + p_vout->fmt_in.i_y_offset,
1571                            i_start, i_stop );
1572
1573     free( p_vout->p->psz_title );
1574
1575     p_vout->p->psz_title = NULL;
1576 }
1577
1578 /*****************************************************************************
1579  * Deinterlacing
1580  *****************************************************************************/
1581 typedef struct
1582 {
1583     const char *psz_mode;
1584     bool       b_vout_filter;
1585 } deinterlace_mode_t;
1586
1587 /* XXX
1588  * You can use the non vout filter if and only if the video properties stay the
1589  * same (width/height/chroma/fps), at least for now.
1590  */
1591 static const deinterlace_mode_t p_deinterlace_mode[] = {
1592     { "",        false },
1593     //{ "discard", true },
1594     { "blend",   false },
1595     //{ "mean",    true  },
1596     //{ "bob",     true },
1597     //{ "linear",  true },
1598     { "x",       false },
1599     //{ "yadif",   true },
1600     //{ "yadif2x", true },
1601     { NULL,      false }
1602 };
1603 static const deinterlace_mode_t *DeinterlaceGetMode( const char *psz_mode )
1604 {
1605     for( const deinterlace_mode_t *p_mode = &p_deinterlace_mode[0]; p_mode->psz_mode; p_mode++ )
1606     {
1607         if( !strcmp( p_mode->psz_mode, psz_mode ) )
1608             return p_mode;
1609     }
1610     return NULL;
1611 }
1612
1613 static char *FilterFind( char *psz_filter_base, const char *psz_module )
1614 {
1615     const size_t i_module = strlen( psz_module );
1616     const char *psz_filter = psz_filter_base;
1617
1618     if( !psz_filter || i_module <= 0 )
1619         return NULL;
1620
1621     for( ;; )
1622     {
1623         char *psz_find = strstr( psz_filter, psz_module );
1624         if( !psz_find )
1625             return NULL;
1626         if( psz_find[i_module] == '\0' || psz_find[i_module] == ':' )
1627             return psz_find;
1628         psz_filter = &psz_find[i_module];
1629     }
1630 }
1631
1632 static bool DeinterlaceIsPresent( vout_thread_t *p_vout, bool b_vout_filter )
1633 {
1634     char *psz_filter = var_GetNonEmptyString( p_vout, b_vout_filter ? "vout-filter" : "video-filter" );
1635
1636     bool b_found = FilterFind( psz_filter, "deinterlace" ) != NULL;
1637
1638     free( psz_filter );
1639
1640     return b_found;
1641 }
1642
1643 static void DeinterlaceRemove( vout_thread_t *p_vout, bool b_vout_filter )
1644 {
1645     const char *psz_variable = b_vout_filter ? "vout-filter" : "video-filter";
1646     char *psz_filter = var_GetNonEmptyString( p_vout, psz_variable );
1647
1648     char *psz = FilterFind( psz_filter, "deinterlace" );
1649     if( !psz )
1650     {
1651         free( psz_filter );
1652         return;
1653     }
1654
1655     /* */
1656     strcpy( &psz[0], &psz[strlen("deinterlace")] );
1657     if( *psz == ':' )
1658         strcpy( &psz[0], &psz[1] );
1659
1660     var_SetString( p_vout, psz_variable, psz_filter );
1661     free( psz_filter );
1662 }
1663 static void DeinterlaceAdd( vout_thread_t *p_vout, bool b_vout_filter )
1664 {
1665     const char *psz_variable = b_vout_filter ? "vout-filter" : "video-filter";
1666
1667     char *psz_filter = var_GetNonEmptyString( p_vout, psz_variable );
1668
1669     if( FilterFind( psz_filter, "deinterlace" ) )
1670     {
1671         free( psz_filter );
1672         return;
1673     }
1674
1675     /* */
1676     if( psz_filter )
1677     {
1678         char *psz_tmp = psz_filter;
1679         if( asprintf( &psz_filter, "%s:%s", psz_tmp, "deinterlace" ) < 0 )
1680             psz_filter = psz_tmp;
1681         else
1682             free( psz_tmp );
1683     }
1684     else
1685     {
1686         psz_filter = strdup( "deinterlace" );
1687     }
1688
1689     if( psz_filter )
1690     {
1691         var_SetString( p_vout, psz_variable, psz_filter );
1692         free( psz_filter );
1693     }
1694 }
1695
1696 static void DeinterlaceSave( vout_thread_t *p_vout, int i_deinterlace, const char *psz_mode, bool is_needed )
1697 {
1698     /* We have to set input variable to ensure restart support
1699      * XXX it is only needed because of vout-filter but must be done
1700      * for non video filter anyway */
1701     vlc_object_t *p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT, FIND_PARENT );
1702     if( !p_input )
1703         return;
1704
1705     /* Another hack for "vout filter" mode */
1706     if( i_deinterlace < 0 )
1707         i_deinterlace = is_needed ? -2 : -3;
1708
1709     var_Create( p_input, "deinterlace", VLC_VAR_INTEGER );
1710     var_SetInteger( p_input, "deinterlace", i_deinterlace );
1711
1712     static const char * const ppsz_variable[] = {
1713         "deinterlace-mode",
1714         "filter-deinterlace-mode",
1715         "sout-deinterlace-mode",
1716         NULL
1717     };
1718     for( int i = 0; ppsz_variable[i]; i++ )
1719     {
1720         var_Create( p_input, ppsz_variable[i], VLC_VAR_STRING );
1721         var_SetString( p_input, ppsz_variable[i], psz_mode );
1722     }
1723
1724     vlc_object_release( p_input );
1725 }
1726 static int DeinterlaceCallback( vlc_object_t *p_this, char const *psz_cmd,
1727                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1728 {
1729     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(newval); VLC_UNUSED(p_data);
1730     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1731
1732     /* */
1733     const int  i_deinterlace = var_GetInteger( p_this, "deinterlace" );
1734     char       *psz_mode     = var_GetString( p_this, "deinterlace-mode" );
1735     const bool is_needed     = var_GetBool( p_this, "deinterlace-needed" );
1736     if( !psz_mode )
1737         return VLC_EGENERIC;
1738
1739     DeinterlaceSave( p_vout, i_deinterlace, psz_mode, is_needed );
1740
1741     /* */
1742     bool b_vout_filter = false;
1743     const deinterlace_mode_t *p_mode = DeinterlaceGetMode( psz_mode );
1744     if( p_mode )
1745         b_vout_filter = p_mode->b_vout_filter;
1746
1747     /* */
1748     char *psz_old;
1749     if( b_vout_filter )
1750     {
1751         psz_old = var_CreateGetString( p_vout, "filter-deinterlace-mode" );
1752     }
1753     else
1754     {
1755         psz_old = var_CreateGetString( p_vout, "sout-deinterlace-mode" );
1756         var_SetString( p_vout, "sout-deinterlace-mode", psz_mode );
1757     }
1758
1759     msg_Dbg( p_vout, "deinterlace %d, mode %s, is_needed %d", i_deinterlace, psz_mode, is_needed );
1760     if( i_deinterlace == 0 || ( i_deinterlace == -1 && !is_needed ) )
1761     {
1762         DeinterlaceRemove( p_vout, false );
1763         DeinterlaceRemove( p_vout, true );
1764     }
1765     else
1766     {
1767         if( !DeinterlaceIsPresent( p_vout, b_vout_filter ) )
1768         {
1769             DeinterlaceRemove( p_vout, !b_vout_filter );
1770             DeinterlaceAdd( p_vout, b_vout_filter );
1771         }
1772         else
1773         {
1774             /* The deinterlace filter was already inserted but we have changed the mode */
1775             DeinterlaceRemove( p_vout, !b_vout_filter );
1776             if( psz_old && strcmp( psz_old, psz_mode ) )
1777                 var_TriggerCallback( p_vout, b_vout_filter ? "vout-filter" : "video-filter" );
1778         }
1779     }
1780
1781     /* */
1782     free( psz_old );
1783     free( psz_mode );
1784     return VLC_SUCCESS;
1785 }
1786
1787 static void DeinterlaceEnable( vout_thread_t *p_vout )
1788 {
1789     vlc_value_t val, text;
1790
1791     if( !p_vout->p->b_first_vout )
1792         return;
1793
1794     msg_Dbg( p_vout, "Deinterlacing available" );
1795
1796     /* Create the configuration variables */
1797     /* */
1798     var_Create( p_vout, "deinterlace", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT | VLC_VAR_HASCHOICE );
1799     int i_deinterlace = var_GetInteger( p_vout, "deinterlace" );
1800
1801     text.psz_string = _("Deinterlace");
1802     var_Change( p_vout, "deinterlace", VLC_VAR_SETTEXT, &text, NULL );
1803
1804     const module_config_t *p_optd = config_FindConfig( VLC_OBJECT(p_vout), "deinterlace" );
1805     var_Change( p_vout, "deinterlace", VLC_VAR_CLEARCHOICES, NULL, NULL );
1806     for( int i = 0; p_optd && i < p_optd->i_list; i++ )
1807     {
1808         val.i_int  = p_optd->pi_list[i];
1809         text.psz_string = (char*)vlc_gettext(p_optd->ppsz_list_text[i]);
1810         var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
1811     }
1812     var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );
1813     /* */
1814     var_Create( p_vout, "deinterlace-mode", VLC_VAR_STRING | VLC_VAR_DOINHERIT | VLC_VAR_HASCHOICE );
1815     char *psz_deinterlace = var_GetNonEmptyString( p_vout, "deinterlace-mode" );
1816
1817     text.psz_string = _("Deinterlace mode");
1818     var_Change( p_vout, "deinterlace-mode", VLC_VAR_SETTEXT, &text, NULL );
1819
1820     const module_config_t *p_optm = config_FindConfig( VLC_OBJECT(p_vout), "deinterlace-mode" );
1821     var_Change( p_vout, "deinterlace-mode", VLC_VAR_CLEARCHOICES, NULL, NULL );
1822     for( int i = 0; p_optm && i < p_optm->i_list; i++ )
1823     {
1824         if( !DeinterlaceGetMode( p_optm->ppsz_list[i] ) )
1825             continue;
1826
1827         val.psz_string  = p_optm->ppsz_list[i];
1828         text.psz_string = (char*)vlc_gettext(p_optm->ppsz_list_text[i]);
1829         var_Change( p_vout, "deinterlace-mode", VLC_VAR_ADDCHOICE, &val, &text );
1830     }
1831     var_AddCallback( p_vout, "deinterlace-mode", DeinterlaceCallback, NULL );
1832     /* */
1833     var_Create( p_vout, "deinterlace-needed", VLC_VAR_BOOL );
1834     var_AddCallback( p_vout, "deinterlace-needed", DeinterlaceCallback, NULL );
1835
1836     /* Override the initial value from filters if present */
1837     char *psz_filter_mode = NULL;
1838     if( DeinterlaceIsPresent( p_vout, true ) )
1839         psz_filter_mode = var_CreateGetNonEmptyString( p_vout, "filter-deinterlace-mode" );
1840     else if( DeinterlaceIsPresent( p_vout, false ) )
1841         psz_filter_mode = var_CreateGetNonEmptyString( p_vout, "sout-deinterlace-mode" );
1842     if( psz_filter_mode )
1843     {
1844         free( psz_deinterlace );
1845         if( i_deinterlace >= -1 )
1846             i_deinterlace = 1;
1847         psz_deinterlace = psz_filter_mode;
1848     }
1849
1850     /* */
1851     if( i_deinterlace == -2 )
1852         p_vout->p->b_picture_interlaced = true;
1853     else if( i_deinterlace == -3 )
1854         p_vout->p->b_picture_interlaced = false;
1855     if( i_deinterlace < 0 )
1856         i_deinterlace = -1;
1857
1858     /* */
1859     val.psz_string = psz_deinterlace ? psz_deinterlace : p_optm->orig.psz;
1860     var_Change( p_vout, "deinterlace-mode", VLC_VAR_SETVALUE, &val, NULL );
1861     val.b_bool = p_vout->p->b_picture_interlaced;
1862     var_Change( p_vout, "deinterlace-needed", VLC_VAR_SETVALUE, &val, NULL );
1863
1864     var_SetInteger( p_vout, "deinterlace", i_deinterlace );
1865     free( psz_deinterlace );
1866 }
1867
1868 static void DeinterlaceNeeded( vout_thread_t *p_vout, bool is_interlaced )
1869 {
1870     msg_Dbg( p_vout, "Detected %s video",
1871              is_interlaced ? "interlaced" : "progressive" );
1872     var_SetBool( p_vout, "deinterlace-needed", is_interlaced );
1873 }
1874