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_fullscreen = 0;
 369     p_vout->p->render_time  = 10;
 370     p_vout->p->c_fps_samples = 0;
 371     vout_statistic_Init( &p_vout->p->statistic );
 372     p_vout->p->b_filter_change = 0;
 373     p_vout->p->b_paused = false;
 374     p_vout->p->i_pause_date = 0;
 375     p_vout->p->i_par_num =
 376     p_vout->p->i_par_den = 1;
 377     p_vout->p->p_picture_displayed = NULL;
 378     p_vout->p->i_picture_displayed_date = 0;
 379     p_vout->p->b_picture_displayed = false;
 380     p_vout->p->b_picture_empty = false;
 381     p_vout->p->i_picture_qtype = QTYPE_NONE;
 382     p_vout->p->b_picture_interlaced = false;
 383
 384     vlc_mouse_Init( &p_vout->p->mouse );
 385
 386     vout_snapshot_Init( &p_vout->p->snapshot );
 387
 388     /* Initialize locks */
 389     vlc_mutex_init( &p_vout->picture_lock );
 390     vlc_cond_init( &p_vout->p->picture_wait );
 391     vlc_mutex_init( &p_vout->change_lock );
 392     vlc_mutex_init( &p_vout->p->vfilter_lock );
 393
 394     /* Mouse coordinates */
 395     var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
 396     var_Create( p_vout, "mouse-moved", VLC_VAR_COORDS );
 397     var_Create( p_vout, "mouse-clicked", VLC_VAR_COORDS );
 398     /* Mouse object (area of interest in a video filter) */
 399     var_Create( p_vout, "mouse-object", VLC_VAR_BOOL );
 400
 401     /* Attach the new object now so we can use var inheritance below */
 402     vlc_object_attach( p_vout, p_parent );
 403
 404     /* Initialize subpicture unit */
 405     p_vout->p->p_spu = spu_Create( p_vout );
 406
 407     /* */
 408     spu_Init( p_vout->p->p_spu );
 409
 410     spu_Attach( p_vout->p->p_spu, VLC_OBJECT(p_vout), true );
 411
 412     /* Take care of some "interface/control" related initialisations */
 413     vout_IntfInit( p_vout );
 414
 415     /* If the parent is not a VOUT object, that means we are at the start of
 416      * the video output pipe */
 417     if( vlc_internals( p_parent )->i_object_type != VLC_OBJECT_VOUT )
 418     {
 419         /* Look for the default filter configuration */
 420         p_vout->p->psz_filter_chain =
 421             var_CreateGetStringCommand( p_vout, "vout-filter" );
 422
 423         /* Apply video filter2 objects on the first vout */
 424         p_vout->p->psz_vf2 =
 425             var_CreateGetStringCommand( p_vout, "video-filter" );
 426
 427         p_vout->p->b_first_vout = true;
 428     }
 429     else
 430     {
 431         /* continue the parent's filter chain */
 432         char *psz_tmp;
 433
 434         /* Ugly hack to jump to our configuration chain */
 435         p_vout->p->psz_filter_chain
 436             = ((vout_thread_t *)p_parent)->p->psz_filter_chain;
 437         p_vout->p->psz_filter_chain
 438             = config_ChainCreate( &psz_tmp, &p_cfg, p_vout->p->psz_filter_chain );
 439         config_ChainDestroy( p_cfg );
 440         free( psz_tmp );
 441
 442         /* Create a video filter2 var ... but don't inherit values */
 443         var_Create( p_vout, "video-filter",
 444                     VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
 445         p_vout->p->psz_vf2 = var_GetString( p_vout, "video-filter" );
 446
 447         /* */
 448         p_vout->p->b_first_vout = false;
 449     }
 450
 451     var_AddCallback( p_vout, "video-filter", VideoFilter2Callback, NULL );
 452     p_vout->p->p_vf2_chain = filter_chain_New( p_vout, "video filter2",
 453         false, video_filter_buffer_allocation_init, NULL, p_vout );
 454
 455     /* Choose the video output module */
 456     if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
 457     {
 458         psz_parser = NULL;
 459     }
 460     else
 461     {
 462         psz_parser = strdup( p_vout->p->psz_filter_chain );
 463         p_vout->p->b_title_show = false;
 464     }
 465
 466     /* Create the vout thread */
 467     char *psz_tmp = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
 468     free( psz_parser );
 469     free( psz_tmp );
 470     p_vout->p->p_cfg = p_cfg;
 471
 472     /* Create a few object variables for interface interaction */
 473     var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 474     text.psz_string = _("Filters");
 475     var_Change( p_vout, "vout-filter", VLC_VAR_SETTEXT, &text, NULL );
 476     var_AddCallback( p_vout, "vout-filter", FilterCallback, NULL );
 477
 478     /* */
 479     DeinterlaceEnable( p_vout );
 480
 481     if( p_vout->p->psz_filter_chain && *p_vout->p->psz_filter_chain )
 482     {
 483         char *psz_tmp;
 484         if( asprintf( &psz_tmp, "%s,none", psz_name ) < 0 )
 485             psz_tmp = strdup( "" );
 486         free( psz_name );
 487         psz_name = psz_tmp;
 488     }
 489     p_vout->p->psz_module_name = psz_name;
 490
 491     /* */
 492     vlc_object_set_destructor( p_vout, vout_Destructor );
 493
 494     /* */
 495     vlc_cond_init( &p_vout->p->change_wait );
 496     if( vlc_clone( &p_vout->p->thread, RunThread, p_vout,
 497                    VLC_THREAD_PRIORITY_OUTPUT ) )
 498     {
 499         spu_Attach( p_vout->p->p_spu, VLC_OBJECT(p_vout), false );
 500         spu_Destroy( p_vout->p->p_spu );
 501         p_vout->p->p_spu = NULL;
 502         vlc_object_release( p_vout );
 503         return NULL;
 504     }
 505
 506     vlc_mutex_lock( &p_vout->change_lock );
 507     while( !p_vout->p->b_ready )
 508     {   /* We are (ab)using the same condition in opposite directions for
 509          * b_ready and b_done. This works because of the strict ordering. */
 510         assert( !p_vout->p->b_done );
 511         vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
 512     }
 513     vlc_mutex_unlock( &p_vout->change_lock );
 514
 515     if( p_vout->p->b_error )
 516     {
 517         msg_Err( p_vout, "video output creation failed" );
 518         vout_CloseAndRelease( p_vout );
 519         return NULL;
 520     }
 521
 522     return p_vout;
 523 }
 524
 525 /*****************************************************************************
 526  * vout_Close: Close a vout created by vout_Create.
 527  *****************************************************************************
 528  * You HAVE to call it on vout created by vout_Create before vlc_object_release.
 529  * You should NEVER call it on vout not obtained through vout_Create
 530  * (like with vout_Request or vlc_object_find.)
 531  * You can use vout_CloseAndRelease() as a convenience method.
 532  *****************************************************************************/
 533 void vout_Close( vout_thread_t *p_vout )
 534 {
 535     assert( p_vout );
 536
 537     vlc_mutex_lock( &p_vout->change_lock );
 538     p_vout->p->b_done = true;
 539     vlc_cond_signal( &p_vout->p->change_wait );
 540     vlc_mutex_unlock( &p_vout->change_lock );
 541
 542     vout_snapshot_End( &p_vout->p->snapshot );
 543
 544     vlc_join( p_vout->p->thread, NULL );
 545 }
 546
 547 /* */
 548 static void vout_Destructor( vlc_object_t * p_this )
 549 {
 550     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 551
 552     /* Make sure the vout was stopped first */
 553     //assert( !p_vout->p_module );
 554
 555     free( p_vout->p->psz_module_name );
 556
 557     /* */
 558     if( p_vout->p->p_spu )
 559         spu_Destroy( p_vout->p->p_spu );
 560
 561     /* Destroy the locks */
 562     vlc_cond_destroy( &p_vout->p->change_wait );
 563     vlc_cond_destroy( &p_vout->p->picture_wait );
 564     vlc_mutex_destroy( &p_vout->picture_lock );
 565     vlc_mutex_destroy( &p_vout->change_lock );
 566     vlc_mutex_destroy( &p_vout->p->vfilter_lock );
 567
 568     /* */
 569     vout_statistic_Clean( &p_vout->p->statistic );
 570
 571     /* */
 572     vout_snapshot_Clean( &p_vout->p->snapshot );
 573
 574     /* */
 575     free( p_vout->p->psz_filter_chain );
 576     free( p_vout->p->psz_title );
 577
 578     config_ChainDestroy( p_vout->p->p_cfg );
 579
 580     free( p_vout->p );
 581
 582 }
 583
 584 /* */
 585 void vout_ChangePause( vout_thread_t *p_vout, bool b_paused, mtime_t i_date )
 586 {
 587     vlc_mutex_lock( &p_vout->change_lock );
 588
 589     assert( !p_vout->p->b_paused || !b_paused );
 590
 591     vlc_mutex_lock( &p_vout->picture_lock );
 592
 593     p_vout->p->i_picture_displayed_date = 0;
 594
 595     if( p_vout->p->b_paused )
 596     {
 597         const mtime_t i_duration = i_date - p_vout->p->i_pause_date;
 598
 599         for( int i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
 600         {
 601             picture_t *p_pic = PP_RENDERPICTURE[i_index];
 602
 603             if( p_pic->i_status == READY_PICTURE )
 604                 p_pic->date += i_duration;
 605         }
 606         vlc_cond_signal( &p_vout->p->picture_wait );
 607         vlc_mutex_unlock( &p_vout->picture_lock );
 608
 609         spu_OffsetSubtitleDate( p_vout->p->p_spu, i_duration );
 610     }
 611     else
 612     {
 613         vlc_mutex_unlock( &p_vout->picture_lock );
 614     }
 615     p_vout->p->b_paused = b_paused;
 616     p_vout->p->i_pause_date = i_date;
 617
 618     vlc_mutex_unlock( &p_vout->change_lock );
 619 }
 620
 621 void vout_GetResetStatistic( vout_thread_t *p_vout, int *pi_displayed, int *pi_lost )
 622 {
 623     vout_statistic_GetReset( &p_vout->p->statistic,
 624                              pi_displayed, pi_lost );
 625 }
 626
 627 void vout_Flush( vout_thread_t *p_vout, mtime_t i_date )
 628 {
 629     vlc_mutex_lock( &p_vout->picture_lock );
 630     p_vout->p->i_picture_displayed_date = 0;
 631     for( int i = 0; i < p_vout->render.i_pictures; i++ )
 632     {
 633         picture_t *p_pic = p_vout->render.pp_picture[i];
 634
 635         if( p_pic->i_status == READY_PICTURE ||
 636             p_pic->i_status == DISPLAYED_PICTURE )
 637         {
 638             /* We cannot change picture status if it is in READY_PICTURE state,
 639              * Just make sure they won't be displayed */
 640             if( p_pic->date > i_date )
 641                 p_pic->date = i_date;
 642         }
 643     }
 644     vlc_cond_signal( &p_vout->p->picture_wait );
 645     vlc_mutex_unlock( &p_vout->picture_lock );
 646 }
 647
 648 void vout_FixLeaks( vout_thread_t *p_vout, bool b_forced )
 649 {
 650     int i_pic, i_ready_pic;
 651
 652     vlc_mutex_lock( &p_vout->picture_lock );
 653
 654     for( i_pic = 0, i_ready_pic = 0; i_pic < p_vout->render.i_pictures && !b_forced; i_pic++ )
 655     {
 656         const picture_t *p_pic = p_vout->render.pp_picture[i_pic];
 657
 658         if( p_pic->i_status == READY_PICTURE )
 659         {
 660             i_ready_pic++;
 661             /* If we have at least 2 ready pictures, wait for the vout thread to
 662              * process one */
 663             if( i_ready_pic >= 2 )
 664                 break;
 665
 666             continue;
 667         }
 668
 669         if( p_pic->i_status == DISPLAYED_PICTURE )
 670         {
 671             /* If at least one displayed picture is not referenced
 672              * let vout free it */
 673             if( p_pic->i_refcount == 0 )
 674                 break;
 675         }
 676     }
 677     if( i_pic < p_vout->render.i_pictures && !b_forced )
 678     {
 679         vlc_mutex_unlock( &p_vout->picture_lock );
 680         return;
 681     }
 682
 683     /* Too many pictures are still referenced, there is probably a bug
 684      * with the decoder */
 685     if( !b_forced )
 686         msg_Err( p_vout, "pictures leaked, resetting the heap" );
 687
 688     /* Just free all the pictures */
 689     for( i_pic = 0; i_pic < p_vout->render.i_pictures; i_pic++ )
 690     {
 691         picture_t *p_pic = p_vout->render.pp_picture[i_pic];
 692
 693         msg_Dbg( p_vout, "[%d] %d %d", i_pic, p_pic->i_status, p_pic->i_refcount );
 694         p_pic->i_refcount = 0;
 695
 696         switch( p_pic->i_status )
 697         {
 698         case READY_PICTURE:
 699         case DISPLAYED_PICTURE:
 700         case RESERVED_PICTURE:
 701             if( p_pic != p_vout->p->p_picture_displayed )
 702                 vout_UsePictureLocked( p_vout, p_pic );
 703             break;
 704         }
 705     }
 706     vlc_cond_signal( &p_vout->p->picture_wait );
 707     vlc_mutex_unlock( &p_vout->picture_lock );
 708 }
 709 void vout_NextPicture( vout_thread_t *p_vout, mtime_t *pi_duration )
 710 {
 711     vlc_mutex_lock( &p_vout->picture_lock );
 712
 713     const mtime_t i_displayed_date = p_vout->p->i_picture_displayed_date;
 714
 715     p_vout->p->b_picture_displayed = false;
 716     p_vout->p->b_picture_empty = false;
 717     if( p_vout->p->p_picture_displayed )
 718     {
 719         p_vout->p->p_picture_displayed->date = 1;
 720         vlc_cond_signal( &p_vout->p->picture_wait );
 721     }
 722
 723     while( !p_vout->p->b_picture_displayed && !p_vout->p->b_picture_empty )
 724         vlc_cond_wait( &p_vout->p->picture_wait, &p_vout->picture_lock );
 725
 726     *pi_duration = __MAX( p_vout->p->i_picture_displayed_date - i_displayed_date, 0 );
 727
 728     /* TODO advance subpicture by the duration ... */
 729
 730     vlc_mutex_unlock( &p_vout->picture_lock );
 731 }
 732
 733 void vout_DisplayTitle( vout_thread_t *p_vout, const char *psz_title )
 734 {
 735     assert( psz_title );
 736
 737     if( !var_InheritBool( p_vout, "osd" ) )
 738         return;
 739
 740     vlc_mutex_lock( &p_vout->change_lock );
 741     free( p_vout->p->psz_title );
 742     p_vout->p->psz_title = strdup( psz_title );
 743     vlc_mutex_unlock( &p_vout->change_lock );
 744 }
 745
 746 spu_t *vout_GetSpu( vout_thread_t *p_vout )
 747 {
 748     return p_vout->p->p_spu;
 749 }
 750
 751 /*****************************************************************************
 752  * InitThread: initialize video output thread
 753  *****************************************************************************
 754  * This function is called from RunThread and performs the second step of the
 755  * initialization. It returns 0 on success. Note that the thread's flag are not
 756  * modified inside this function.
 757  * XXX You have to enter it with change_lock taken.
 758  *****************************************************************************/
 759 static int InitThread( vout_thread_t *p_vout )
 760 {
 761     int i;
 762
 763     /* Initialize output method, it allocates direct buffers for us */
 764     if( vout_InitWrapper( p_vout ) )
 765         return VLC_EGENERIC;
 766
 767     p_vout->p->p_picture_displayed = NULL;
 768
 769     if( !I_OUTPUTPICTURES )
 770     {
 771         msg_Err( p_vout, "plugin was unable to allocate at least "
 772                          "one direct buffer" );
 773         vout_EndWrapper( p_vout );
 774         return VLC_EGENERIC;
 775     }
 776
 777     if( I_OUTPUTPICTURES > VOUT_MAX_PICTURES )
 778     {
 779         msg_Err( p_vout, "plugin allocated too many direct buffers, "
 780                          "our internal buffers must have overflown." );
 781         vout_EndWrapper( p_vout );
 782         return VLC_EGENERIC;
 783     }
 784
 785     msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
 786
 787     if( !p_vout->fmt_out.i_width || !p_vout->fmt_out.i_height )
 788     {
 789         p_vout->fmt_out.i_width = p_vout->fmt_out.i_visible_width =
 790             p_vout->output.i_width;
 791         p_vout->fmt_out.i_height = p_vout->fmt_out.i_visible_height =
 792             p_vout->output.i_height;
 793         p_vout->fmt_out.i_x_offset =  p_vout->fmt_out.i_y_offset = 0;
 794
 795         p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
 796     }
 797     if( !p_vout->fmt_out.i_sar_num || !p_vout->fmt_out.i_sar_num )
 798     {
 799         p_vout->fmt_out.i_sar_num = p_vout->output.i_aspect *
 800             p_vout->fmt_out.i_height;
 801         p_vout->fmt_out.i_sar_den = VOUT_ASPECT_FACTOR *
 802             p_vout->fmt_out.i_width;
 803     }
 804
 805     vlc_ureduce( &p_vout->fmt_out.i_sar_num, &p_vout->fmt_out.i_sar_den,
 806                  p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den, 0 );
 807
 808     /* FIXME removed the need of both fmt_* and heap infos */
 809     /* Calculate shifts from system-updated masks */
 810     PictureHeapFixRgb( &p_vout->render );
 811     VideoFormatImportRgb( &p_vout->fmt_render, &p_vout->render );
 812
 813     PictureHeapFixRgb( &p_vout->output );
 814     VideoFormatImportRgb( &p_vout->fmt_out, &p_vout->output );
 815
 816     /* print some usefull debug info about different vout formats
 817      */
 818     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",
 819              p_vout->fmt_render.i_width, p_vout->fmt_render.i_height,
 820              p_vout->fmt_render.i_x_offset, p_vout->fmt_render.i_y_offset,
 821              p_vout->fmt_render.i_visible_width,
 822              p_vout->fmt_render.i_visible_height,
 823              (char*)&p_vout->fmt_render.i_chroma,
 824              p_vout->fmt_render.i_sar_num, p_vout->fmt_render.i_sar_den,
 825              p_vout->fmt_render.i_rmask, p_vout->fmt_render.i_gmask, p_vout->fmt_render.i_bmask );
 826
 827     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",
 828              p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
 829              p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
 830              p_vout->fmt_in.i_visible_width,
 831              p_vout->fmt_in.i_visible_height,
 832              (char*)&p_vout->fmt_in.i_chroma,
 833              p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den,
 834              p_vout->fmt_in.i_rmask, p_vout->fmt_in.i_gmask, p_vout->fmt_in.i_bmask );
 835
 836     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",
 837              p_vout->fmt_out.i_width, p_vout->fmt_out.i_height,
 838              p_vout->fmt_out.i_x_offset, p_vout->fmt_out.i_y_offset,
 839              p_vout->fmt_out.i_visible_width,
 840              p_vout->fmt_out.i_visible_height,
 841              (char*)&p_vout->fmt_out.i_chroma,
 842              p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den,
 843              p_vout->fmt_out.i_rmask, p_vout->fmt_out.i_gmask, p_vout->fmt_out.i_bmask );
 844
 845     assert( p_vout->output.i_width == p_vout->render.i_width &&
 846             p_vout->output.i_height == p_vout->render.i_height &&
 847             p_vout->output.i_chroma == p_vout->render.i_chroma );
 848     /* Check whether we managed to create direct buffers similar to
 849      * the render buffers, ie same size and chroma */
 850
 851     /* Cool ! We have direct buffers, we can ask the decoder to
 852      * directly decode into them ! Map the first render buffers to
 853      * the first direct buffers, but keep the first direct buffer
 854      * for memcpy operations */
 855     for( i = 1; i < VOUT_MAX_PICTURES; i++ )
 856     {
 857         if( p_vout->p_picture[ i ].i_type != DIRECT_PICTURE &&
 858             I_RENDERPICTURES >= VOUT_MIN_DIRECT_PICTURES - 1 &&
 859             p_vout->p_picture[ i - 1 ].i_type == DIRECT_PICTURE )
 860         {
 861             /* We have enough direct buffers so there's no need to
 862              * try to use system memory buffers. */
 863             break;
 864         }
 865         PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
 866         I_RENDERPICTURES++;
 867     }
 868
 869     msg_Dbg( p_vout, "direct render, mapping "
 870              "render pictures 0-%i to system pictures 1-%i",
 871              VOUT_MAX_PICTURES - 2, VOUT_MAX_PICTURES - 1 );
 872
 873     return VLC_SUCCESS;
 874 }
 875
 876 /*****************************************************************************
 877  * RunThread: video output thread
 878  *****************************************************************************
 879  * Video output thread. This function does only returns when the thread is
 880  * terminated. It handles the pictures arriving in the video heap and the
 881  * display device events.
 882  *****************************************************************************/
 883 static void* RunThread( void *p_this )
 884 {
 885     vout_thread_t *p_vout = p_this;
 886     bool            b_has_wrapper;
 887     int             i_idle_loops = 0;  /* loops without displaying a picture */
 888     int             i_picture_qtype_last = QTYPE_NONE;
 889     bool            b_picture_interlaced_last = false;
 890     mtime_t         i_picture_interlaced_last_date;
 891
 892     /*
 893      * Initialize thread
 894      */
 895     b_has_wrapper = !vout_OpenWrapper( p_vout, p_vout->p->psz_module_name );
 896
 897     vlc_mutex_lock( &p_vout->change_lock );
 898
 899     if( b_has_wrapper )
 900         p_vout->p->b_error = InitThread( p_vout );
 901     else
 902         p_vout->p->b_error = true;
 903
 904     /* signal the creation of the vout */
 905     p_vout->p->b_ready = true;
 906     vlc_cond_signal( &p_vout->p->change_wait );
 907
 908     if( p_vout->p->b_error )
 909         goto exit_thread;
 910
 911     /* */
 912     const bool b_drop_late = var_CreateGetBool( p_vout, "drop-late-frames" );
 913     i_picture_interlaced_last_date = mdate();
 914
 915     /*
 916      * Main loop - it is not executed if an error occurred during
 917      * initialization
 918      */
 919     while( !p_vout->p->b_done && !p_vout->p->b_error )
 920     {
 921         /* Initialize loop variables */
 922         const mtime_t current_date = mdate();
 923         picture_t *p_picture;
 924         picture_t *p_filtered_picture;
 925         mtime_t display_date;
 926         picture_t *p_directbuffer;
 927         int i_index;
 928
 929         if( p_vout->p->b_title_show && p_vout->p->psz_title )
 930             DisplayTitleOnOSD( p_vout );
 931
 932         vlc_mutex_lock( &p_vout->picture_lock );
 933
 934         /* Look for the earliest picture but after the last displayed one */
 935         picture_t *p_last = p_vout->p->p_picture_displayed;;
 936
 937         p_picture = NULL;
 938         for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
 939         {
 940             picture_t *p_pic = PP_RENDERPICTURE[i_index];
 941
 942             if( p_pic->i_status != READY_PICTURE )
 943                 continue;
 944
 945             if( p_vout->p->b_paused && p_last && p_last->date > 1 )
 946                 continue;
 947
 948             if( p_last && p_pic != p_last && p_pic->date <= p_last->date )
 949             {
 950                 /* Drop old picture */
 951                 vout_UsePictureLocked( p_vout, p_pic );
 952             }
 953             else if( !p_vout->p->b_paused && !p_pic->b_force && p_pic != p_last &&
 954                      p_pic->date < current_date + p_vout->p->render_time &&
 955                      b_drop_late )
 956             {
 957                 /* Picture is late: it will be destroyed and the thread
 958                  * will directly choose the next picture */
 959                 vout_UsePictureLocked( p_vout, p_pic );
 960                 vout_statistic_Update( &p_vout->p->statistic, 0, 1 );
 961
 962                 msg_Warn( p_vout, "late picture skipped (%"PRId64" > %d)",
 963                                   current_date - p_pic->date, - p_vout->p->render_time );
 964             }
 965             else if( ( !p_last || p_last->date < p_pic->date ) &&
 966                      ( p_picture == NULL || p_pic->date < p_picture->date ) )
 967             {
 968                 p_picture = p_pic;
 969             }
 970         }
 971         if( !p_picture )
 972         {
 973             p_picture = p_last;
 974
 975             if( !p_vout->p->b_picture_empty )
 976             {
 977                 p_vout->p->b_picture_empty = true;
 978                 vlc_cond_signal( &p_vout->p->picture_wait );
 979             }
 980         }
 981
 982         display_date = 0;
 983         if( p_picture )
 984         {
 985             display_date = p_picture->date;
 986
 987             /* If we found better than the last picture, destroy it */
 988             if( p_last && p_picture != p_last )
 989             {
 990                 vout_UsePictureLocked( p_vout, p_last );
 991                 p_vout->p->p_picture_displayed = p_last = NULL;
 992             }
 993
 994             /* Compute FPS rate */
 995             p_vout->p->p_fps_sample[ p_vout->p->c_fps_samples++ % VOUT_FPS_SAMPLES ] = display_date;
 996
 997             if( !p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
 998             {
 999                 /* A picture is ready to be rendered, but its rendering date
1000                  * is far from the current one so the thread will perform an
1001                  * empty loop as if no picture were found. The picture state
1002                  * is unchanged */
1003                 p_picture    = NULL;
1004                 display_date = 0;
1005             }
1006             else if( p_picture == p_last )
1007             {
1008                 /* We are asked to repeat the previous picture, but we first
1009                  * wait for a couple of idle loops */
1010                 if( i_idle_loops < 4 )
1011                 {
1012                     p_picture    = NULL;
1013                     display_date = 0;
1014                 }
1015                 else
1016                 {
1017                     /* We set the display date to something high, otherwise
1018                      * we'll have lots of problems with late pictures */
1019                     display_date = current_date + p_vout->p->render_time;
1020                 }
1021             }
1022             else if( p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
1023             {
1024                 display_date = current_date + VOUT_DISPLAY_DELAY;
1025             }
1026
1027             if( p_picture )
1028             {
1029                 if( p_picture->date > 1 )
1030                 {
1031                     p_vout->p->i_picture_displayed_date = p_picture->date;
1032                     if( p_picture != p_last && !p_vout->p->b_picture_displayed )
1033                     {
1034                         p_vout->p->b_picture_displayed = true;
1035                         vlc_cond_signal( &p_vout->p->picture_wait );
1036                     }
1037                 }
1038                 p_vout->p->p_picture_displayed = p_picture;
1039             }
1040         }
1041
1042         /* */
1043         const int i_postproc_type = p_vout->p->i_picture_qtype;
1044         const int i_postproc_state = (p_vout->p->i_picture_qtype != QTYPE_NONE) - (i_picture_qtype_last != QTYPE_NONE);
1045
1046         const bool b_picture_interlaced = p_vout->p->b_picture_interlaced;
1047         const int  i_picture_interlaced_state = (!!p_vout->p->b_picture_interlaced) - (!!b_picture_interlaced_last);
1048
1049         vlc_mutex_unlock( &p_vout->picture_lock );
1050
1051         if( p_picture == NULL )
1052             i_idle_loops++;
1053
1054         p_filtered_picture = NULL;
1055         if( p_picture )
1056         {
1057             vlc_mutex_lock( &p_vout->p->vfilter_lock );
1058             p_filtered_picture = filter_chain_VideoFilter( p_vout->p->p_vf2_chain,
1059                                                            p_picture );
1060             vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1061         }
1062
1063         const bool b_snapshot = vout_snapshot_IsRequested( &p_vout->p->snapshot );
1064
1065         /*
1066          * Check for subpictures to display
1067          */
1068         mtime_t spu_render_time;
1069         if( p_vout->p->b_paused )
1070             spu_render_time = p_vout->p->i_pause_date;
1071         else if( p_picture )
1072             spu_render_time = p_picture->date > 1 ? p_picture->date : mdate();
1073         else
1074             spu_render_time = 0;
1075
1076         subpicture_t *p_subpic = spu_SortSubpictures( p_vout->p->p_spu,
1077                                                       spu_render_time,
1078                                                       b_snapshot );
1079         /*
1080          * Perform rendering
1081          */
1082         vout_statistic_Update( &p_vout->p->statistic, 1, 0 );
1083         p_directbuffer = vout_RenderPicture( p_vout,
1084                                              p_filtered_picture, p_subpic,
1085                                              spu_render_time );
1086
1087         /*
1088          * Take a snapshot if requested
1089          */
1090         if( p_directbuffer && b_snapshot )
1091             vout_snapshot_Set( &p_vout->p->snapshot,
1092                                &p_vout->fmt_out, p_directbuffer );
1093
1094         /*
1095          * Call the plugin-specific rendering method if there is one
1096          */
1097         if( p_filtered_picture != NULL && p_directbuffer != NULL )
1098         {
1099             /* Render the direct buffer returned by vout_RenderPicture */
1100             vout_RenderWrapper( p_vout, p_directbuffer );
1101         }
1102
1103         /*
1104          * Sleep, wake up
1105          */
1106         if( display_date != 0 && p_directbuffer != NULL )
1107         {
1108             mtime_t current_render_time = mdate() - current_date;
1109             /* if render time is very large we don't include it in the mean */
1110             if( current_render_time < p_vout->p->render_time +
1111                 VOUT_DISPLAY_DELAY )
1112             {
1113                 /* Store render time using a sliding mean weighting to
1114                  * current value in a 3 to 1 ratio*/
1115                 p_vout->p->render_time *= 3;
1116                 p_vout->p->render_time += current_render_time;
1117                 p_vout->p->render_time >>= 2;
1118             }
1119             else
1120                 msg_Dbg( p_vout, "skipped big render time %d > %d", (int) current_render_time,
1121                  (int) (p_vout->p->render_time +VOUT_DISPLAY_DELAY ) ) ;
1122         }
1123
1124         /* Give back change lock */
1125         vlc_mutex_unlock( &p_vout->change_lock );
1126
1127         /* Sleep a while or until a given date */
1128         if( display_date != 0 )
1129         {
1130             /* If there are *vout* filters in the chain, better give them the picture
1131              * in advance */
1132             if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
1133             {
1134                 mwait( display_date - VOUT_MWAIT_TOLERANCE );
1135             }
1136         }
1137         else
1138         {
1139             /* Wait until a frame is being sent or a spurious wakeup (not a problem here) */
1140             vlc_mutex_lock( &p_vout->picture_lock );
1141             vlc_cond_timedwait( &p_vout->p->picture_wait, &p_vout->picture_lock, current_date + VOUT_IDLE_SLEEP );
1142             vlc_mutex_unlock( &p_vout->picture_lock );
1143         }
1144
1145         /* On awakening, take back lock and send immediately picture
1146          * to display. */
1147         /* Note: p_vout->p->b_done could be true here and now */
1148         vlc_mutex_lock( &p_vout->change_lock );
1149
1150         /*
1151          * Display the previously rendered picture
1152          */
1153         if( p_filtered_picture != NULL && p_directbuffer != NULL )
1154         {
1155             /* Display the direct buffer returned by vout_RenderPicture */
1156             vout_DisplayWrapper( p_vout, p_directbuffer );
1157
1158             /* Tell the vout this was the last picture and that it does not
1159              * need to be forced anymore. */
1160             p_picture->b_force = false;
1161         }
1162
1163         /* Drop the filtered picture if created by video filters */
1164         if( p_filtered_picture != NULL && p_filtered_picture != p_picture )
1165         {
1166             vlc_mutex_lock( &p_vout->picture_lock );
1167             vout_UsePictureLocked( p_vout, p_filtered_picture );
1168             vlc_mutex_unlock( &p_vout->picture_lock );
1169         }
1170
1171         if( p_picture != NULL )
1172         {
1173             /* Reinitialize idle loop count */
1174             i_idle_loops = 0;
1175         }
1176
1177         /*
1178          * Check events and manage thread
1179          */
1180         if( vout_ManageWrapper( p_vout ) )
1181         {
1182             /* A fatal error occurred, and the thread must terminate
1183              * immediately, without displaying anything - setting b_error to 1
1184              * causes the immediate end of the main while() loop. */
1185             // FIXME pf_end
1186             p_vout->p->b_error = 1;
1187             break;
1188         }
1189
1190         if( p_vout->i_changes & VOUT_ON_TOP_CHANGE )
1191             p_vout->i_changes &= ~VOUT_ON_TOP_CHANGE;
1192
1193         if( p_vout->i_changes & VOUT_PICTURE_BUFFERS_CHANGE )
1194         {
1195             /* This happens when the picture buffers need to be recreated.
1196              * This is useful on multimonitor displays for instance.
1197              *
1198              * Warning: This only works when the vout creates only 1 picture
1199              * buffer!! */
1200             p_vout->i_changes &= ~VOUT_PICTURE_BUFFERS_CHANGE;
1201
1202             vlc_mutex_lock( &p_vout->picture_lock );
1203
1204             vout_EndWrapper( p_vout );
1205
1206             I_OUTPUTPICTURES = I_RENDERPICTURES = 0;
1207
1208             p_vout->p->b_error = InitThread( p_vout );
1209             if( p_vout->p->b_error )
1210                 msg_Err( p_vout, "InitThread after VOUT_PICTURE_BUFFERS_CHANGE failed" );
1211
1212             vlc_cond_signal( &p_vout->p->picture_wait );
1213             vlc_mutex_unlock( &p_vout->picture_lock );
1214
1215             if( p_vout->p->b_error )
1216                 break;
1217         }
1218
1219         /* Post processing */
1220         if( i_postproc_state == 1 )
1221             PostProcessEnable( p_vout );
1222         else if( i_postproc_state == -1 )
1223             PostProcessDisable( p_vout );
1224         if( i_postproc_state != 0 )
1225             i_picture_qtype_last = i_postproc_type;
1226
1227         /* Deinterlacing
1228          * Wait 30s before quiting interlacing mode */
1229         if( ( i_picture_interlaced_state == 1 ) ||
1230             ( i_picture_interlaced_state == -1 && i_picture_interlaced_last_date + 30000000 < current_date ) )
1231         {
1232             DeinterlaceNeeded( p_vout, b_picture_interlaced );
1233             b_picture_interlaced_last = b_picture_interlaced;
1234         }
1235         if( b_picture_interlaced )
1236             i_picture_interlaced_last_date = current_date;
1237
1238
1239         /* Check for "video filter2" changes */
1240         vlc_mutex_lock( &p_vout->p->vfilter_lock );
1241         if( p_vout->p->psz_vf2 )
1242         {
1243             es_format_t fmt;
1244
1245             es_format_Init( &fmt, VIDEO_ES, p_vout->fmt_render.i_chroma );
1246             fmt.video = p_vout->fmt_render;
1247             filter_chain_Reset( p_vout->p->p_vf2_chain, &fmt, &fmt );
1248
1249             if( filter_chain_AppendFromString( p_vout->p->p_vf2_chain,
1250                                                p_vout->p->psz_vf2 ) < 0 )
1251                 msg_Err( p_vout, "Video filter chain creation failed" );
1252
1253             free( p_vout->p->psz_vf2 );
1254             p_vout->p->psz_vf2 = NULL;
1255
1256             if( i_picture_qtype_last != QTYPE_NONE )
1257                 PostProcessSetFilterQuality( p_vout );
1258         }
1259         vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1260     }
1261
1262     /*
1263      * Error loop - wait until the thread destruction is requested
1264      */
1265     if( p_vout->p->b_error )
1266         ErrorThread( p_vout );
1267
1268     /* Clean thread */
1269     CleanThread( p_vout );
1270
1271 exit_thread:
1272     /* End of thread */
1273     EndThread( p_vout );
1274     vlc_mutex_unlock( &p_vout->change_lock );
1275
1276     if( b_has_wrapper )
1277         vout_CloseWrapper( p_vout );
1278
1279     return NULL;
1280 }
1281
1282 /*****************************************************************************
1283  * ErrorThread: RunThread() error loop
1284  *****************************************************************************
1285  * This function is called when an error occurred during thread main's loop.
1286  * The thread can still receive feed, but must be ready to terminate as soon
1287  * as possible.
1288  *****************************************************************************/
1289 static void ErrorThread( vout_thread_t *p_vout )
1290 {
1291     /* Wait until a `close' order */
1292     while( !p_vout->p->b_done )
1293         vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
1294 }
1295
1296 /*****************************************************************************
1297  * CleanThread: clean up after InitThread
1298  *****************************************************************************
1299  * This function is called after a sucessful
1300  * initialization. It frees all resources allocated by InitThread.
1301  * XXX You have to enter it with change_lock taken.
1302  *****************************************************************************/
1303 static void CleanThread( vout_thread_t *p_vout )
1304 {
1305     int     i_index;                                        /* index in heap */
1306
1307     /* Destroy all remaining pictures */
1308     for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++ )
1309     {
1310         if ( p_vout->p_picture[i_index].i_type == MEMORY_PICTURE )
1311         {
1312             free( p_vout->p_picture[i_index].p_data_orig );
1313         }
1314     }
1315
1316     /* Destroy translation tables */
1317     if( !p_vout->p->b_error )
1318         vout_EndWrapper( p_vout );
1319 }
1320
1321 /*****************************************************************************
1322  * EndThread: thread destruction
1323  *****************************************************************************
1324  * This function is called when the thread ends.
1325  * It frees all resources not allocated by InitThread.
1326  * XXX You have to enter it with change_lock taken.
1327  *****************************************************************************/
1328 static void EndThread( vout_thread_t *p_vout )
1329 {
1330     /* FIXME does that function *really* need to be called inside the thread ? */
1331
1332     /* Detach subpicture unit from both input and vout */
1333     spu_Attach( p_vout->p->p_spu, VLC_OBJECT(p_vout), false );
1334     vlc_object_detach( p_vout->p->p_spu );
1335
1336     /* Destroy the video filters2 */
1337     filter_chain_Delete( p_vout->p->p_vf2_chain );
1338 }
1339
1340 /* following functions are local */
1341
1342 /**
1343  * This function copies all RGB informations from a picture_heap_t into
1344  * a video_format_t
1345  */
1346 static void VideoFormatImportRgb( video_format_t *p_fmt, const picture_heap_t *p_heap )
1347 {
1348     p_fmt->i_rmask = p_heap->i_rmask;
1349     p_fmt->i_gmask = p_heap->i_gmask;
1350     p_fmt->i_bmask = p_heap->i_bmask;
1351     p_fmt->i_rrshift = p_heap->i_rrshift;
1352     p_fmt->i_lrshift = p_heap->i_lrshift;
1353     p_fmt->i_rgshift = p_heap->i_rgshift;
1354     p_fmt->i_lgshift = p_heap->i_lgshift;
1355     p_fmt->i_rbshift = p_heap->i_rbshift;
1356     p_fmt->i_lbshift = p_heap->i_lbshift;
1357 }
1358
1359 /**
1360  * This funtion copes all RGB informations from a video_format_t into
1361  * a picture_heap_t
1362  */
1363 static void VideoFormatExportRgb( const video_format_t *p_fmt, picture_heap_t *p_heap )
1364 {
1365     p_heap->i_rmask = p_fmt->i_rmask;
1366     p_heap->i_gmask = p_fmt->i_gmask;
1367     p_heap->i_bmask = p_fmt->i_bmask;
1368     p_heap->i_rrshift = p_fmt->i_rrshift;
1369     p_heap->i_lrshift = p_fmt->i_lrshift;
1370     p_heap->i_rgshift = p_fmt->i_rgshift;
1371     p_heap->i_lgshift = p_fmt->i_lgshift;
1372     p_heap->i_rbshift = p_fmt->i_rbshift;
1373     p_heap->i_lbshift = p_fmt->i_lbshift;
1374 }
1375
1376 /**
1377  * This function computes rgb shifts from masks
1378  */
1379 static void PictureHeapFixRgb( picture_heap_t *p_heap )
1380 {
1381     video_format_t fmt;
1382
1383     /* */
1384     fmt.i_chroma = p_heap->i_chroma;
1385     VideoFormatImportRgb( &fmt, p_heap );
1386
1387     /* */
1388     video_format_FixRgb( &fmt );
1389
1390     VideoFormatExportRgb( &fmt, p_heap );
1391 }
1392
1393 /*****************************************************************************
1394  * object variables callbacks: a bunch of object variables are used by the
1395  * interfaces to interact with the vout.
1396  *****************************************************************************/
1397 static int FilterCallback( vlc_object_t *p_this, char const *psz_cmd,
1398                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1399 {
1400     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1401     input_thread_t *p_input;
1402     (void)psz_cmd; (void)oldval; (void)p_data;
1403
1404     p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
1405                                                  FIND_PARENT );
1406     if (!p_input)
1407     {
1408         msg_Err( p_vout, "Input not found" );
1409         return VLC_EGENERIC;
1410     }
1411
1412     var_SetBool( p_vout, "intf-change", true );
1413
1414     /* Modify input as well because the vout might have to be restarted */
1415     var_Create( p_input, "vout-filter", VLC_VAR_STRING );
1416     var_SetString( p_input, "vout-filter", newval.psz_string );
1417
1418     /* Now restart current video stream */
1419     input_Control( p_input, INPUT_RESTART_ES, -VIDEO_ES );
1420     vlc_object_release( p_input );
1421
1422     return VLC_SUCCESS;
1423 }
1424
1425 /*****************************************************************************
1426  * Video Filter2 stuff
1427  *****************************************************************************/
1428 static int VideoFilter2Callback( vlc_object_t *p_this, char const *psz_cmd,
1429                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1430 {
1431     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1432     (void)psz_cmd; (void)oldval; (void)p_data;
1433
1434     vlc_mutex_lock( &p_vout->p->vfilter_lock );
1435     p_vout->p->psz_vf2 = strdup( newval.psz_string );
1436     vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1437
1438     return VLC_SUCCESS;
1439 }
1440
1441 /*****************************************************************************
1442  * Post-processing
1443  *****************************************************************************/
1444 static bool PostProcessIsPresent( const char *psz_filter )
1445 {
1446     const char  *psz_pp = "postproc";
1447     const size_t i_pp = strlen(psz_pp);
1448     return psz_filter &&
1449            !strncmp( psz_filter, psz_pp, strlen(psz_pp) ) &&
1450            ( psz_filter[i_pp] == '\0' || psz_filter[i_pp] == ':' );
1451 }
1452
1453 static int PostProcessCallback( vlc_object_t *p_this, char const *psz_cmd,
1454                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1455 {
1456     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1457     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
1458
1459     static const char *psz_pp = "postproc";
1460
1461     char *psz_vf2 = var_GetString( p_vout, "video-filter" );
1462
1463     if( newval.i_int <= 0 )
1464     {
1465         if( PostProcessIsPresent( psz_vf2 ) )
1466         {
1467             strcpy( psz_vf2, &psz_vf2[strlen(psz_pp)] );
1468             if( *psz_vf2 == ':' )
1469                 strcpy( psz_vf2, &psz_vf2[1] );
1470         }
1471     }
1472     else
1473     {
1474         if( !PostProcessIsPresent( psz_vf2 ) )
1475         {
1476             if( psz_vf2 )
1477             {
1478                 char *psz_tmp = psz_vf2;
1479                 if( asprintf( &psz_vf2, "%s:%s", psz_pp, psz_tmp ) < 0 )
1480                     psz_vf2 = psz_tmp;
1481                 else
1482                     free( psz_tmp );
1483             }
1484             else
1485             {
1486                 psz_vf2 = strdup( psz_pp );
1487             }
1488         }
1489     }
1490     if( psz_vf2 )
1491     {
1492         var_SetString( p_vout, "video-filter", psz_vf2 );
1493         free( psz_vf2 );
1494     }
1495
1496     return VLC_SUCCESS;
1497 }
1498 static void PostProcessEnable( vout_thread_t *p_vout )
1499 {
1500     vlc_value_t text;
1501     msg_Dbg( p_vout, "Post-processing available" );
1502     var_Create( p_vout, "postprocess", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
1503     text.psz_string = _("Post processing");
1504     var_Change( p_vout, "postprocess", VLC_VAR_SETTEXT, &text, NULL );
1505
1506     for( int i = 0; i <= 6; i++ )
1507     {
1508         vlc_value_t val;
1509         vlc_value_t text;
1510         char psz_text[1+1];
1511
1512         val.i_int = i;
1513         snprintf( psz_text, sizeof(psz_text), "%d", i );
1514         if( i == 0 )
1515             text.psz_string = _("Disable");
1516         else
1517             text.psz_string = psz_text;
1518         var_Change( p_vout, "postprocess", VLC_VAR_ADDCHOICE, &val, &text );
1519     }
1520     var_AddCallback( p_vout, "postprocess", PostProcessCallback, NULL );
1521
1522     /* */
1523     char *psz_filter = var_GetNonEmptyString( p_vout, "video-filter" );
1524     int i_postproc_q = 0;
1525     if( PostProcessIsPresent( psz_filter ) )
1526         i_postproc_q = var_CreateGetInteger( p_vout, "postproc-q" );
1527
1528     var_SetInteger( p_vout, "postprocess", i_postproc_q );
1529
1530     free( psz_filter );
1531 }
1532 static void PostProcessDisable( vout_thread_t *p_vout )
1533 {
1534     msg_Dbg( p_vout, "Post-processing no more available" );
1535     var_Destroy( p_vout, "postprocess" );
1536 }
1537 static void PostProcessSetFilterQuality( vout_thread_t *p_vout )
1538 {
1539     vlc_object_t *p_pp = vlc_object_find_name( p_vout, "postproc", FIND_CHILD );
1540     if( !p_pp )
1541         return;
1542
1543     var_SetInteger( p_pp, "postproc-q", var_GetInteger( p_vout, "postprocess" ) );
1544     vlc_object_release( p_pp );
1545 }
1546
1547
1548 static void DisplayTitleOnOSD( vout_thread_t *p_vout )
1549 {
1550     const mtime_t i_start = mdate();
1551     const mtime_t i_stop = i_start + INT64_C(1000) * p_vout->p->i_title_timeout;
1552
1553     if( i_stop <= i_start )
1554         return;
1555
1556     vlc_assert_locked( &p_vout->change_lock );
1557
1558     vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN,
1559                            p_vout->p->psz_title, NULL,
1560                            p_vout->p->i_title_position,
1561                            30 + p_vout->fmt_in.i_width
1562                               - p_vout->fmt_in.i_visible_width
1563                               - p_vout->fmt_in.i_x_offset,
1564                            20 + p_vout->fmt_in.i_y_offset,
1565                            i_start, i_stop );
1566
1567     free( p_vout->p->psz_title );
1568
1569     p_vout->p->psz_title = NULL;
1570 }
1571
1572 /*****************************************************************************
1573  * Deinterlacing
1574  *****************************************************************************/
1575 typedef struct
1576 {
1577     const char *psz_mode;
1578     bool       b_vout_filter;
1579 } deinterlace_mode_t;
1580
1581 /* XXX
1582  * You can use the non vout filter if and only if the video properties stay the
1583  * same (width/height/chroma/fps), at least for now.
1584  */
1585 static const deinterlace_mode_t p_deinterlace_mode[] = {
1586     { "",        false },
1587     //{ "discard", true },
1588     { "blend",   false },
1589     //{ "mean",    true  },
1590     //{ "bob",     true },
1591     //{ "linear",  true },
1592     { "x",       false },
1593     //{ "yadif",   true },
1594     //{ "yadif2x", true },
1595     { NULL,      false }
1596 };
1597 static const deinterlace_mode_t *DeinterlaceGetMode( const char *psz_mode )
1598 {
1599     for( const deinterlace_mode_t *p_mode = &p_deinterlace_mode[0]; p_mode->psz_mode; p_mode++ )
1600     {
1601         if( !strcmp( p_mode->psz_mode, psz_mode ) )
1602             return p_mode;
1603     }
1604     return NULL;
1605 }
1606
1607 static char *FilterFind( char *psz_filter_base, const char *psz_module )
1608 {
1609     const size_t i_module = strlen( psz_module );
1610     const char *psz_filter = psz_filter_base;
1611
1612     if( !psz_filter || i_module <= 0 )
1613         return NULL;
1614
1615     for( ;; )
1616     {
1617         char *psz_find = strstr( psz_filter, psz_module );
1618         if( !psz_find )
1619             return NULL;
1620         if( psz_find[i_module] == '\0' || psz_find[i_module] == ':' )
1621             return psz_find;
1622         psz_filter = &psz_find[i_module];
1623     }
1624 }
1625
1626 static bool DeinterlaceIsPresent( vout_thread_t *p_vout, bool b_vout_filter )
1627 {
1628     char *psz_filter = var_GetNonEmptyString( p_vout, b_vout_filter ? "vout-filter" : "video-filter" );
1629
1630     bool b_found = FilterFind( psz_filter, "deinterlace" ) != NULL;
1631
1632     free( psz_filter );
1633
1634     return b_found;
1635 }
1636
1637 static void DeinterlaceRemove( vout_thread_t *p_vout, bool b_vout_filter )
1638 {
1639     const char *psz_variable = b_vout_filter ? "vout-filter" : "video-filter";
1640     char *psz_filter = var_GetNonEmptyString( p_vout, psz_variable );
1641
1642     char *psz = FilterFind( psz_filter, "deinterlace" );
1643     if( !psz )
1644     {
1645         free( psz_filter );
1646         return;
1647     }
1648
1649     /* */
1650     strcpy( &psz[0], &psz[strlen("deinterlace")] );
1651     if( *psz == ':' )
1652         strcpy( &psz[0], &psz[1] );
1653
1654     var_SetString( p_vout, psz_variable, psz_filter );
1655     free( psz_filter );
1656 }
1657 static void DeinterlaceAdd( vout_thread_t *p_vout, bool b_vout_filter )
1658 {
1659     const char *psz_variable = b_vout_filter ? "vout-filter" : "video-filter";
1660
1661     char *psz_filter = var_GetNonEmptyString( p_vout, psz_variable );
1662
1663     if( FilterFind( psz_filter, "deinterlace" ) )
1664     {
1665         free( psz_filter );
1666         return;
1667     }
1668
1669     /* */
1670     if( psz_filter )
1671     {
1672         char *psz_tmp = psz_filter;
1673         if( asprintf( &psz_filter, "%s:%s", psz_tmp, "deinterlace" ) < 0 )
1674             psz_filter = psz_tmp;
1675         else
1676             free( psz_tmp );
1677     }
1678     else
1679     {
1680         psz_filter = strdup( "deinterlace" );
1681     }
1682
1683     if( psz_filter )
1684     {
1685         var_SetString( p_vout, psz_variable, psz_filter );
1686         free( psz_filter );
1687     }
1688 }
1689
1690 static void DeinterlaceSave( vout_thread_t *p_vout, int i_deinterlace, const char *psz_mode, bool is_needed )
1691 {
1692     /* We have to set input variable to ensure restart support
1693      * XXX it is only needed because of vout-filter but must be done
1694      * for non video filter anyway */
1695     vlc_object_t *p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT, FIND_PARENT );
1696     if( !p_input )
1697         return;
1698
1699     /* Another hack for "vout filter" mode */
1700     if( i_deinterlace < 0 )
1701         i_deinterlace = is_needed ? -2 : -3;
1702
1703     var_Create( p_input, "deinterlace", VLC_VAR_INTEGER );
1704     var_SetInteger( p_input, "deinterlace", i_deinterlace );
1705
1706     static const char * const ppsz_variable[] = {
1707         "deinterlace-mode",
1708         "filter-deinterlace-mode",
1709         "sout-deinterlace-mode",
1710         NULL
1711     };
1712     for( int i = 0; ppsz_variable[i]; i++ )
1713     {
1714         var_Create( p_input, ppsz_variable[i], VLC_VAR_STRING );
1715         var_SetString( p_input, ppsz_variable[i], psz_mode );
1716     }
1717
1718     vlc_object_release( p_input );
1719 }
1720 static int DeinterlaceCallback( vlc_object_t *p_this, char const *psz_cmd,
1721                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1722 {
1723     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(newval); VLC_UNUSED(p_data);
1724     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1725
1726     /* */
1727     const int  i_deinterlace = var_GetInteger( p_this, "deinterlace" );
1728     char       *psz_mode     = var_GetString( p_this, "deinterlace-mode" );
1729     const bool is_needed     = var_GetBool( p_this, "deinterlace-needed" );
1730     if( !psz_mode )
1731         return VLC_EGENERIC;
1732
1733     DeinterlaceSave( p_vout, i_deinterlace, psz_mode, is_needed );
1734
1735     /* */
1736     bool b_vout_filter = false;
1737     const deinterlace_mode_t *p_mode = DeinterlaceGetMode( psz_mode );
1738     if( p_mode )
1739         b_vout_filter = p_mode->b_vout_filter;
1740
1741     /* */
1742     char *psz_old;
1743     if( b_vout_filter )
1744     {
1745         psz_old = var_CreateGetString( p_vout, "filter-deinterlace-mode" );
1746     }
1747     else
1748     {
1749         psz_old = var_CreateGetString( p_vout, "sout-deinterlace-mode" );
1750         var_SetString( p_vout, "sout-deinterlace-mode", psz_mode );
1751     }
1752
1753     msg_Dbg( p_vout, "deinterlace %d, mode %s, is_needed %d", i_deinterlace, psz_mode, is_needed );
1754     if( i_deinterlace == 0 || ( i_deinterlace == -1 && !is_needed ) )
1755     {
1756         DeinterlaceRemove( p_vout, false );
1757         DeinterlaceRemove( p_vout, true );
1758     }
1759     else
1760     {
1761         if( !DeinterlaceIsPresent( p_vout, b_vout_filter ) )
1762         {
1763             DeinterlaceRemove( p_vout, !b_vout_filter );
1764             DeinterlaceAdd( p_vout, b_vout_filter );
1765         }
1766         else
1767         {
1768             /* The deinterlace filter was already inserted but we have changed the mode */
1769             DeinterlaceRemove( p_vout, !b_vout_filter );
1770             if( psz_old && strcmp( psz_old, psz_mode ) )
1771                 var_TriggerCallback( p_vout, b_vout_filter ? "vout-filter" : "video-filter" );
1772         }
1773     }
1774
1775     /* */
1776     free( psz_old );
1777     free( psz_mode );
1778     return VLC_SUCCESS;
1779 }
1780
1781 static void DeinterlaceEnable( vout_thread_t *p_vout )
1782 {
1783     vlc_value_t val, text;
1784
1785     if( !p_vout->p->b_first_vout )
1786         return;
1787
1788     msg_Dbg( p_vout, "Deinterlacing available" );
1789
1790     /* Create the configuration variables */
1791     /* */
1792     var_Create( p_vout, "deinterlace", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT | VLC_VAR_HASCHOICE );
1793     int i_deinterlace = var_GetInteger( p_vout, "deinterlace" );
1794
1795     text.psz_string = _("Deinterlace");
1796     var_Change( p_vout, "deinterlace", VLC_VAR_SETTEXT, &text, NULL );
1797
1798     const module_config_t *p_optd = config_FindConfig( VLC_OBJECT(p_vout), "deinterlace" );
1799     var_Change( p_vout, "deinterlace", VLC_VAR_CLEARCHOICES, NULL, NULL );
1800     for( int i = 0; p_optd && i < p_optd->i_list; i++ )
1801     {
1802         val.i_int  = p_optd->pi_list[i];
1803         text.psz_string = (char*)vlc_gettext(p_optd->ppsz_list_text[i]);
1804         var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
1805     }
1806     var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );
1807     /* */
1808     var_Create( p_vout, "deinterlace-mode", VLC_VAR_STRING | VLC_VAR_DOINHERIT | VLC_VAR_HASCHOICE );
1809     char *psz_deinterlace = var_GetNonEmptyString( p_vout, "deinterlace-mode" );
1810
1811     text.psz_string = _("Deinterlace mode");
1812     var_Change( p_vout, "deinterlace-mode", VLC_VAR_SETTEXT, &text, NULL );
1813
1814     const module_config_t *p_optm = config_FindConfig( VLC_OBJECT(p_vout), "deinterlace-mode" );
1815     var_Change( p_vout, "deinterlace-mode", VLC_VAR_CLEARCHOICES, NULL, NULL );
1816     for( int i = 0; p_optm && i < p_optm->i_list; i++ )
1817     {
1818         if( !DeinterlaceGetMode( p_optm->ppsz_list[i] ) )
1819             continue;
1820
1821         val.psz_string  = p_optm->ppsz_list[i];
1822         text.psz_string = (char*)vlc_gettext(p_optm->ppsz_list_text[i]);
1823         var_Change( p_vout, "deinterlace-mode", VLC_VAR_ADDCHOICE, &val, &text );
1824     }
1825     var_AddCallback( p_vout, "deinterlace-mode", DeinterlaceCallback, NULL );
1826     /* */
1827     var_Create( p_vout, "deinterlace-needed", VLC_VAR_BOOL );
1828     var_AddCallback( p_vout, "deinterlace-needed", DeinterlaceCallback, NULL );
1829
1830     /* Override the initial value from filters if present */
1831     char *psz_filter_mode = NULL;
1832     if( DeinterlaceIsPresent( p_vout, true ) )
1833         psz_filter_mode = var_CreateGetNonEmptyString( p_vout, "filter-deinterlace-mode" );
1834     else if( DeinterlaceIsPresent( p_vout, false ) )
1835         psz_filter_mode = var_CreateGetNonEmptyString( p_vout, "sout-deinterlace-mode" );
1836     if( psz_filter_mode )
1837     {
1838         free( psz_deinterlace );
1839         if( i_deinterlace >= -1 )
1840             i_deinterlace = 1;
1841         psz_deinterlace = psz_filter_mode;
1842     }
1843
1844     /* */
1845     if( i_deinterlace == -2 )
1846         p_vout->p->b_picture_interlaced = true;
1847     else if( i_deinterlace == -3 )
1848         p_vout->p->b_picture_interlaced = false;
1849     if( i_deinterlace < 0 )
1850         i_deinterlace = -1;
1851
1852     /* */
1853     val.psz_string = psz_deinterlace ? psz_deinterlace : p_optm->orig.psz;
1854     var_Change( p_vout, "deinterlace-mode", VLC_VAR_SETVALUE, &val, NULL );
1855     val.b_bool = p_vout->p->b_picture_interlaced;
1856     var_Change( p_vout, "deinterlace-needed", VLC_VAR_SETVALUE, &val, NULL );
1857
1858     var_SetInteger( p_vout, "deinterlace", i_deinterlace );
1859     free( psz_deinterlace );
1860 }
1861
1862 static void DeinterlaceNeeded( vout_thread_t *p_vout, bool is_interlaced )
1863 {
1864     msg_Dbg( p_vout, "Detected %s video",
1865              is_interlaced ? "interlaced" : "progressive" );
1866     var_SetBool( p_vout, "deinterlace-needed", is_interlaced );
1867 }
1868