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     p_vout->render.b_allow_modify_pics = 1;
 355
 356     /* Zero the output heap */
 357     I_OUTPUTPICTURES = 0;
 358     p_vout->output.i_width    = 0;
 359     p_vout->output.i_height   = 0;
 360     p_vout->output.i_chroma   = 0;
 361     p_vout->output.i_aspect   = 0;
 362
 363     p_vout->output.i_rmask    = 0;
 364     p_vout->output.i_gmask    = 0;
 365     p_vout->output.i_bmask    = 0;
 366
 367     /* Initialize misc stuff */
 368     p_vout->i_changes    = 0;
 369     p_vout->b_autoscale  = 1;
 370     p_vout->i_zoom      = ZOOM_FP_FACTOR;
 371     p_vout->b_fullscreen = 0;
 372     p_vout->i_alignment  = 0;
 373     p_vout->p->render_time  = 10;
 374     p_vout->p->c_fps_samples = 0;
 375     vout_statistic_Init( &p_vout->p->statistic );
 376     p_vout->p->b_filter_change = 0;
 377     p_vout->p->b_paused = false;
 378     p_vout->p->i_pause_date = 0;
 379     p_vout->p->i_par_num =
 380     p_vout->p->i_par_den = 1;
 381     p_vout->p->p_picture_displayed = NULL;
 382     p_vout->p->i_picture_displayed_date = 0;
 383     p_vout->p->b_picture_displayed = false;
 384     p_vout->p->b_picture_empty = false;
 385     p_vout->p->i_picture_qtype = QTYPE_NONE;
 386     p_vout->p->b_picture_interlaced = false;
 387
 388     vlc_mouse_Init( &p_vout->p->mouse );
 389
 390     vout_snapshot_Init( &p_vout->p->snapshot );
 391
 392     /* Initialize locks */
 393     vlc_mutex_init( &p_vout->picture_lock );
 394     vlc_cond_init( &p_vout->p->picture_wait );
 395     vlc_mutex_init( &p_vout->change_lock );
 396     vlc_mutex_init( &p_vout->p->vfilter_lock );
 397
 398     /* Mouse coordinates */
 399     var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
 400     var_Create( p_vout, "mouse-moved", VLC_VAR_COORDS );
 401     var_Create( p_vout, "mouse-clicked", VLC_VAR_COORDS );
 402     /* Mouse object (area of interest in a video filter) */
 403     var_Create( p_vout, "mouse-object", VLC_VAR_BOOL );
 404
 405     /* Attach the new object now so we can use var inheritance below */
 406     vlc_object_attach( p_vout, p_parent );
 407
 408     /* Initialize subpicture unit */
 409     p_vout->p->p_spu = spu_Create( p_vout );
 410
 411     /* */
 412     spu_Init( p_vout->p->p_spu );
 413
 414     spu_Attach( p_vout->p->p_spu, VLC_OBJECT(p_vout), true );
 415
 416     /* Take care of some "interface/control" related initialisations */
 417     vout_IntfInit( p_vout );
 418
 419     /* If the parent is not a VOUT object, that means we are at the start of
 420      * the video output pipe */
 421     if( vlc_internals( p_parent )->i_object_type != VLC_OBJECT_VOUT )
 422     {
 423         /* Look for the default filter configuration */
 424         p_vout->p->psz_filter_chain =
 425             var_CreateGetStringCommand( p_vout, "vout-filter" );
 426
 427         /* Apply video filter2 objects on the first vout */
 428         p_vout->p->psz_vf2 =
 429             var_CreateGetStringCommand( p_vout, "video-filter" );
 430
 431         p_vout->p->b_first_vout = true;
 432     }
 433     else
 434     {
 435         /* continue the parent's filter chain */
 436         char *psz_tmp;
 437
 438         /* Ugly hack to jump to our configuration chain */
 439         p_vout->p->psz_filter_chain
 440             = ((vout_thread_t *)p_parent)->p->psz_filter_chain;
 441         p_vout->p->psz_filter_chain
 442             = config_ChainCreate( &psz_tmp, &p_cfg, p_vout->p->psz_filter_chain );
 443         config_ChainDestroy( p_cfg );
 444         free( psz_tmp );
 445
 446         /* Create a video filter2 var ... but don't inherit values */
 447         var_Create( p_vout, "video-filter",
 448                     VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
 449         p_vout->p->psz_vf2 = var_GetString( p_vout, "video-filter" );
 450
 451         /* */
 452         p_vout->p->b_first_vout = false;
 453     }
 454
 455     var_AddCallback( p_vout, "video-filter", VideoFilter2Callback, NULL );
 456     p_vout->p->p_vf2_chain = filter_chain_New( p_vout, "video filter2",
 457         false, video_filter_buffer_allocation_init, NULL, p_vout );
 458
 459     /* Choose the video output module */
 460     if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
 461     {
 462         psz_parser = NULL;
 463     }
 464     else
 465     {
 466         psz_parser = strdup( p_vout->p->psz_filter_chain );
 467         p_vout->p->b_title_show = false;
 468     }
 469
 470     /* Create the vout thread */
 471     char *psz_tmp = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
 472     free( psz_parser );
 473     free( psz_tmp );
 474     p_vout->p->p_cfg = p_cfg;
 475
 476     /* Create a few object variables for interface interaction */
 477     var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 478     text.psz_string = _("Filters");
 479     var_Change( p_vout, "vout-filter", VLC_VAR_SETTEXT, &text, NULL );
 480     var_AddCallback( p_vout, "vout-filter", FilterCallback, NULL );
 481
 482     /* */
 483     DeinterlaceEnable( p_vout );
 484
 485     if( p_vout->p->psz_filter_chain && *p_vout->p->psz_filter_chain )
 486     {
 487         char *psz_tmp;
 488         if( asprintf( &psz_tmp, "%s,none", psz_name ) < 0 )
 489             psz_tmp = strdup( "" );
 490         free( psz_name );
 491         psz_name = psz_tmp;
 492     }
 493     p_vout->p->psz_module_name = psz_name;
 494
 495     /* */
 496     vlc_object_set_destructor( p_vout, vout_Destructor );
 497
 498     /* */
 499     vlc_cond_init( &p_vout->p->change_wait );
 500     if( vlc_clone( &p_vout->p->thread, RunThread, p_vout,
 501                    VLC_THREAD_PRIORITY_OUTPUT ) )
 502     {
 503         spu_Attach( p_vout->p->p_spu, VLC_OBJECT(p_vout), false );
 504         spu_Destroy( p_vout->p->p_spu );
 505         p_vout->p->p_spu = NULL;
 506         vlc_object_release( p_vout );
 507         return NULL;
 508     }
 509
 510     vlc_mutex_lock( &p_vout->change_lock );
 511     while( !p_vout->p->b_ready )
 512     {   /* We are (ab)using the same condition in opposite directions for
 513          * b_ready and b_done. This works because of the strict ordering. */
 514         assert( !p_vout->p->b_done );
 515         vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
 516     }
 517     vlc_mutex_unlock( &p_vout->change_lock );
 518
 519     if( p_vout->p->b_error )
 520     {
 521         msg_Err( p_vout, "video output creation failed" );
 522         vout_CloseAndRelease( p_vout );
 523         return NULL;
 524     }
 525
 526     return p_vout;
 527 }
 528
 529 /*****************************************************************************
 530  * vout_Close: Close a vout created by vout_Create.
 531  *****************************************************************************
 532  * You HAVE to call it on vout created by vout_Create before vlc_object_release.
 533  * You should NEVER call it on vout not obtained through vout_Create
 534  * (like with vout_Request or vlc_object_find.)
 535  * You can use vout_CloseAndRelease() as a convenience method.
 536  *****************************************************************************/
 537 void vout_Close( vout_thread_t *p_vout )
 538 {
 539     assert( p_vout );
 540
 541     vlc_mutex_lock( &p_vout->change_lock );
 542     p_vout->p->b_done = true;
 543     vlc_cond_signal( &p_vout->p->change_wait );
 544     vlc_mutex_unlock( &p_vout->change_lock );
 545
 546     vout_snapshot_End( &p_vout->p->snapshot );
 547
 548     vlc_join( p_vout->p->thread, NULL );
 549 }
 550
 551 /* */
 552 static void vout_Destructor( vlc_object_t * p_this )
 553 {
 554     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 555
 556     /* Make sure the vout was stopped first */
 557     //assert( !p_vout->p_module );
 558
 559     free( p_vout->p->psz_module_name );
 560
 561     /* */
 562     if( p_vout->p->p_spu )
 563         spu_Destroy( p_vout->p->p_spu );
 564
 565     /* Destroy the locks */
 566     vlc_cond_destroy( &p_vout->p->change_wait );
 567     vlc_cond_destroy( &p_vout->p->picture_wait );
 568     vlc_mutex_destroy( &p_vout->picture_lock );
 569     vlc_mutex_destroy( &p_vout->change_lock );
 570     vlc_mutex_destroy( &p_vout->p->vfilter_lock );
 571
 572     /* */
 573     vout_statistic_Clean( &p_vout->p->statistic );
 574
 575     /* */
 576     vout_snapshot_Clean( &p_vout->p->snapshot );
 577
 578     /* */
 579     free( p_vout->p->psz_filter_chain );
 580     free( p_vout->p->psz_title );
 581
 582     config_ChainDestroy( p_vout->p->p_cfg );
 583
 584     free( p_vout->p );
 585
 586 }
 587
 588 /* */
 589 void vout_ChangePause( vout_thread_t *p_vout, bool b_paused, mtime_t i_date )
 590 {
 591     vlc_mutex_lock( &p_vout->change_lock );
 592
 593     assert( !p_vout->p->b_paused || !b_paused );
 594
 595     vlc_mutex_lock( &p_vout->picture_lock );
 596
 597     p_vout->p->i_picture_displayed_date = 0;
 598
 599     if( p_vout->p->b_paused )
 600     {
 601         const mtime_t i_duration = i_date - p_vout->p->i_pause_date;
 602
 603         for( int i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
 604         {
 605             picture_t *p_pic = PP_RENDERPICTURE[i_index];
 606
 607             if( p_pic->i_status == READY_PICTURE )
 608                 p_pic->date += i_duration;
 609         }
 610         vlc_cond_signal( &p_vout->p->picture_wait );
 611         vlc_mutex_unlock( &p_vout->picture_lock );
 612
 613         spu_OffsetSubtitleDate( p_vout->p->p_spu, i_duration );
 614     }
 615     else
 616     {
 617         vlc_mutex_unlock( &p_vout->picture_lock );
 618     }
 619     p_vout->p->b_paused = b_paused;
 620     p_vout->p->i_pause_date = i_date;
 621
 622     vlc_mutex_unlock( &p_vout->change_lock );
 623 }
 624
 625 void vout_GetResetStatistic( vout_thread_t *p_vout, int *pi_displayed, int *pi_lost )
 626 {
 627     vout_statistic_GetReset( &p_vout->p->statistic,
 628                              pi_displayed, pi_lost );
 629 }
 630
 631 void vout_Flush( vout_thread_t *p_vout, mtime_t i_date )
 632 {
 633     vlc_mutex_lock( &p_vout->picture_lock );
 634     p_vout->p->i_picture_displayed_date = 0;
 635     for( int i = 0; i < p_vout->render.i_pictures; i++ )
 636     {
 637         picture_t *p_pic = p_vout->render.pp_picture[i];
 638
 639         if( p_pic->i_status == READY_PICTURE ||
 640             p_pic->i_status == DISPLAYED_PICTURE )
 641         {
 642             /* We cannot change picture status if it is in READY_PICTURE state,
 643              * Just make sure they won't be displayed */
 644             if( p_pic->date > i_date )
 645                 p_pic->date = i_date;
 646         }
 647     }
 648     vlc_cond_signal( &p_vout->p->picture_wait );
 649     vlc_mutex_unlock( &p_vout->picture_lock );
 650 }
 651
 652 void vout_FixLeaks( vout_thread_t *p_vout, bool b_forced )
 653 {
 654     int i_pic, i_ready_pic;
 655
 656     vlc_mutex_lock( &p_vout->picture_lock );
 657
 658     for( i_pic = 0, i_ready_pic = 0; i_pic < p_vout->render.i_pictures && !b_forced; i_pic++ )
 659     {
 660         const picture_t *p_pic = p_vout->render.pp_picture[i_pic];
 661
 662         if( p_pic->i_status == READY_PICTURE )
 663         {
 664             i_ready_pic++;
 665             /* If we have at least 2 ready pictures, wait for the vout thread to
 666              * process one */
 667             if( i_ready_pic >= 2 )
 668                 break;
 669
 670             continue;
 671         }
 672
 673         if( p_pic->i_status == DISPLAYED_PICTURE )
 674         {
 675             /* If at least one displayed picture is not referenced
 676              * let vout free it */
 677             if( p_pic->i_refcount == 0 )
 678                 break;
 679         }
 680     }
 681     if( i_pic < p_vout->render.i_pictures && !b_forced )
 682     {
 683         vlc_mutex_unlock( &p_vout->picture_lock );
 684         return;
 685     }
 686
 687     /* Too many pictures are still referenced, there is probably a bug
 688      * with the decoder */
 689     if( !b_forced )
 690         msg_Err( p_vout, "pictures leaked, resetting the heap" );
 691
 692     /* Just free all the pictures */
 693     for( i_pic = 0; i_pic < p_vout->render.i_pictures; i_pic++ )
 694     {
 695         picture_t *p_pic = p_vout->render.pp_picture[i_pic];
 696
 697         msg_Dbg( p_vout, "[%d] %d %d", i_pic, p_pic->i_status, p_pic->i_refcount );
 698         p_pic->i_refcount = 0;
 699
 700         switch( p_pic->i_status )
 701         {
 702         case READY_PICTURE:
 703         case DISPLAYED_PICTURE:
 704         case RESERVED_PICTURE:
 705             if( p_pic != p_vout->p->p_picture_displayed )
 706                 vout_UsePictureLocked( p_vout, p_pic );
 707             break;
 708         }
 709     }
 710     vlc_cond_signal( &p_vout->p->picture_wait );
 711     vlc_mutex_unlock( &p_vout->picture_lock );
 712 }
 713 void vout_NextPicture( vout_thread_t *p_vout, mtime_t *pi_duration )
 714 {
 715     vlc_mutex_lock( &p_vout->picture_lock );
 716
 717     const mtime_t i_displayed_date = p_vout->p->i_picture_displayed_date;
 718
 719     p_vout->p->b_picture_displayed = false;
 720     p_vout->p->b_picture_empty = false;
 721     if( p_vout->p->p_picture_displayed )
 722     {
 723         p_vout->p->p_picture_displayed->date = 1;
 724         vlc_cond_signal( &p_vout->p->picture_wait );
 725     }
 726
 727     while( !p_vout->p->b_picture_displayed && !p_vout->p->b_picture_empty )
 728         vlc_cond_wait( &p_vout->p->picture_wait, &p_vout->picture_lock );
 729
 730     *pi_duration = __MAX( p_vout->p->i_picture_displayed_date - i_displayed_date, 0 );
 731
 732     /* TODO advance subpicture by the duration ... */
 733
 734     vlc_mutex_unlock( &p_vout->picture_lock );
 735 }
 736
 737 void vout_DisplayTitle( vout_thread_t *p_vout, const char *psz_title )
 738 {
 739     assert( psz_title );
 740
 741     if( !var_InheritBool( p_vout, "osd" ) )
 742         return;
 743
 744     vlc_mutex_lock( &p_vout->change_lock );
 745     free( p_vout->p->psz_title );
 746     p_vout->p->psz_title = strdup( psz_title );
 747     vlc_mutex_unlock( &p_vout->change_lock );
 748 }
 749
 750 spu_t *vout_GetSpu( vout_thread_t *p_vout )
 751 {
 752     return p_vout->p->p_spu;
 753 }
 754
 755 /*****************************************************************************
 756  * InitThread: initialize video output thread
 757  *****************************************************************************
 758  * This function is called from RunThread and performs the second step of the
 759  * initialization. It returns 0 on success. Note that the thread's flag are not
 760  * modified inside this function.
 761  * XXX You have to enter it with change_lock taken.
 762  *****************************************************************************/
 763 static int ChromaCreate( vout_thread_t *p_vout );
 764 static void ChromaDestroy( vout_thread_t *p_vout );
 765
 766 static int InitThread( vout_thread_t *p_vout )
 767 {
 768     int i;
 769
 770     /* Initialize output method, it allocates direct buffers for us */
 771     if( vout_InitWrapper( p_vout ) )
 772         return VLC_EGENERIC;
 773
 774     p_vout->p->p_picture_displayed = NULL;
 775
 776     if( !I_OUTPUTPICTURES )
 777     {
 778         msg_Err( p_vout, "plugin was unable to allocate at least "
 779                          "one direct buffer" );
 780         vout_EndWrapper( p_vout );
 781         return VLC_EGENERIC;
 782     }
 783
 784     if( I_OUTPUTPICTURES > VOUT_MAX_PICTURES )
 785     {
 786         msg_Err( p_vout, "plugin allocated too many direct buffers, "
 787                          "our internal buffers must have overflown." );
 788         vout_EndWrapper( p_vout );
 789         return VLC_EGENERIC;
 790     }
 791
 792     msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
 793
 794     if( !p_vout->fmt_out.i_width || !p_vout->fmt_out.i_height )
 795     {
 796         p_vout->fmt_out.i_width = p_vout->fmt_out.i_visible_width =
 797             p_vout->output.i_width;
 798         p_vout->fmt_out.i_height = p_vout->fmt_out.i_visible_height =
 799             p_vout->output.i_height;
 800         p_vout->fmt_out.i_x_offset =  p_vout->fmt_out.i_y_offset = 0;
 801
 802         p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
 803     }
 804     if( !p_vout->fmt_out.i_sar_num || !p_vout->fmt_out.i_sar_num )
 805     {
 806         p_vout->fmt_out.i_sar_num = p_vout->output.i_aspect *
 807             p_vout->fmt_out.i_height;
 808         p_vout->fmt_out.i_sar_den = VOUT_ASPECT_FACTOR *
 809             p_vout->fmt_out.i_width;
 810     }
 811
 812     vlc_ureduce( &p_vout->fmt_out.i_sar_num, &p_vout->fmt_out.i_sar_den,
 813                  p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den, 0 );
 814
 815     /* FIXME removed the need of both fmt_* and heap infos */
 816     /* Calculate shifts from system-updated masks */
 817     PictureHeapFixRgb( &p_vout->render );
 818     VideoFormatImportRgb( &p_vout->fmt_render, &p_vout->render );
 819
 820     PictureHeapFixRgb( &p_vout->output );
 821     VideoFormatImportRgb( &p_vout->fmt_out, &p_vout->output );
 822
 823     /* print some usefull debug info about different vout formats
 824      */
 825     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",
 826              p_vout->fmt_render.i_width, p_vout->fmt_render.i_height,
 827              p_vout->fmt_render.i_x_offset, p_vout->fmt_render.i_y_offset,
 828              p_vout->fmt_render.i_visible_width,
 829              p_vout->fmt_render.i_visible_height,
 830              (char*)&p_vout->fmt_render.i_chroma,
 831              p_vout->fmt_render.i_sar_num, p_vout->fmt_render.i_sar_den,
 832              p_vout->fmt_render.i_rmask, p_vout->fmt_render.i_gmask, p_vout->fmt_render.i_bmask );
 833
 834     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",
 835              p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
 836              p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
 837              p_vout->fmt_in.i_visible_width,
 838              p_vout->fmt_in.i_visible_height,
 839              (char*)&p_vout->fmt_in.i_chroma,
 840              p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den,
 841              p_vout->fmt_in.i_rmask, p_vout->fmt_in.i_gmask, p_vout->fmt_in.i_bmask );
 842
 843     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",
 844              p_vout->fmt_out.i_width, p_vout->fmt_out.i_height,
 845              p_vout->fmt_out.i_x_offset, p_vout->fmt_out.i_y_offset,
 846              p_vout->fmt_out.i_visible_width,
 847              p_vout->fmt_out.i_visible_height,
 848              (char*)&p_vout->fmt_out.i_chroma,
 849              p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den,
 850              p_vout->fmt_out.i_rmask, p_vout->fmt_out.i_gmask, p_vout->fmt_out.i_bmask );
 851
 852     assert( p_vout->output.i_width == p_vout->render.i_width &&
 853             p_vout->output.i_height == p_vout->render.i_height &&
 854             p_vout->output.i_chroma == p_vout->render.i_chroma );
 855     /* Check whether we managed to create direct buffers similar to
 856      * the render buffers, ie same size and chroma */
 857
 858     /* Cool ! We have direct buffers, we can ask the decoder to
 859      * directly decode into them ! Map the first render buffers to
 860      * the first direct buffers, but keep the first direct buffer
 861      * for memcpy operations */
 862     for( i = 1; i < VOUT_MAX_PICTURES; i++ )
 863     {
 864         if( p_vout->p_picture[ i ].i_type != DIRECT_PICTURE &&
 865             I_RENDERPICTURES >= VOUT_MIN_DIRECT_PICTURES - 1 &&
 866             p_vout->p_picture[ i - 1 ].i_type == DIRECT_PICTURE )
 867         {
 868             /* We have enough direct buffers so there's no need to
 869              * try to use system memory buffers. */
 870             break;
 871         }
 872         PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
 873         I_RENDERPICTURES++;
 874     }
 875
 876     msg_Dbg( p_vout, "direct render, mapping "
 877              "render pictures 0-%i to system pictures 1-%i",
 878              VOUT_MAX_PICTURES - 2, VOUT_MAX_PICTURES - 1 );
 879
 880     return VLC_SUCCESS;
 881 }
 882
 883 /*****************************************************************************
 884  * RunThread: video output thread
 885  *****************************************************************************
 886  * Video output thread. This function does only returns when the thread is
 887  * terminated. It handles the pictures arriving in the video heap and the
 888  * display device events.
 889  *****************************************************************************/
 890 static void* RunThread( void *p_this )
 891 {
 892     vout_thread_t *p_vout = p_this;
 893     bool            b_has_wrapper;
 894     int             i_idle_loops = 0;  /* loops without displaying a picture */
 895     int             i_picture_qtype_last = QTYPE_NONE;
 896     bool            b_picture_interlaced_last = false;
 897     mtime_t         i_picture_interlaced_last_date;
 898
 899     /*
 900      * Initialize thread
 901      */
 902     b_has_wrapper = !vout_OpenWrapper( p_vout, p_vout->p->psz_module_name );
 903
 904     vlc_mutex_lock( &p_vout->change_lock );
 905
 906     if( b_has_wrapper )
 907         p_vout->p->b_error = InitThread( p_vout );
 908     else
 909         p_vout->p->b_error = true;
 910
 911     /* signal the creation of the vout */
 912     p_vout->p->b_ready = true;
 913     vlc_cond_signal( &p_vout->p->change_wait );
 914
 915     if( p_vout->p->b_error )
 916         goto exit_thread;
 917
 918     /* */
 919     const bool b_drop_late = var_CreateGetBool( p_vout, "drop-late-frames" );
 920     i_picture_interlaced_last_date = mdate();
 921
 922     /*
 923      * Main loop - it is not executed if an error occurred during
 924      * initialization
 925      */
 926     while( !p_vout->p->b_done && !p_vout->p->b_error )
 927     {
 928         /* Initialize loop variables */
 929         const mtime_t current_date = mdate();
 930         picture_t *p_picture;
 931         picture_t *p_filtered_picture;
 932         mtime_t display_date;
 933         picture_t *p_directbuffer;
 934         int i_index;
 935
 936         if( p_vout->p->b_title_show && p_vout->p->psz_title )
 937             DisplayTitleOnOSD( p_vout );
 938
 939         vlc_mutex_lock( &p_vout->picture_lock );
 940
 941         /* Look for the earliest picture but after the last displayed one */
 942         picture_t *p_last = p_vout->p->p_picture_displayed;;
 943
 944         p_picture = NULL;
 945         for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
 946         {
 947             picture_t *p_pic = PP_RENDERPICTURE[i_index];
 948
 949             if( p_pic->i_status != READY_PICTURE )
 950                 continue;
 951
 952             if( p_vout->p->b_paused && p_last && p_last->date > 1 )
 953                 continue;
 954
 955             if( p_last && p_pic != p_last && p_pic->date <= p_last->date )
 956             {
 957                 /* Drop old picture */
 958                 vout_UsePictureLocked( p_vout, p_pic );
 959             }
 960             else if( !p_vout->p->b_paused && !p_pic->b_force && p_pic != p_last &&
 961                      p_pic->date < current_date + p_vout->p->render_time &&
 962                      b_drop_late )
 963             {
 964                 /* Picture is late: it will be destroyed and the thread
 965                  * will directly choose the next picture */
 966                 vout_UsePictureLocked( p_vout, p_pic );
 967                 vout_statistic_Update( &p_vout->p->statistic, 0, 1 );
 968
 969                 msg_Warn( p_vout, "late picture skipped (%"PRId64" > %d)",
 970                                   current_date - p_pic->date, - p_vout->p->render_time );
 971             }
 972             else if( ( !p_last || p_last->date < p_pic->date ) &&
 973                      ( p_picture == NULL || p_pic->date < p_picture->date ) )
 974             {
 975                 p_picture = p_pic;
 976             }
 977         }
 978         if( !p_picture )
 979         {
 980             p_picture = p_last;
 981
 982             if( !p_vout->p->b_picture_empty )
 983             {
 984                 p_vout->p->b_picture_empty = true;
 985                 vlc_cond_signal( &p_vout->p->picture_wait );
 986             }
 987         }
 988
 989         display_date = 0;
 990         if( p_picture )
 991         {
 992             display_date = p_picture->date;
 993
 994             /* If we found better than the last picture, destroy it */
 995             if( p_last && p_picture != p_last )
 996             {
 997                 vout_UsePictureLocked( p_vout, p_last );
 998                 p_vout->p->p_picture_displayed = p_last = NULL;
 999             }
1000
1001             /* Compute FPS rate */
1002             p_vout->p->p_fps_sample[ p_vout->p->c_fps_samples++ % VOUT_FPS_SAMPLES ] = display_date;
1003
1004             if( !p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
1005             {
1006                 /* A picture is ready to be rendered, but its rendering date
1007                  * is far from the current one so the thread will perform an
1008                  * empty loop as if no picture were found. The picture state
1009                  * is unchanged */
1010                 p_picture    = NULL;
1011                 display_date = 0;
1012             }
1013             else if( p_picture == p_last )
1014             {
1015                 /* We are asked to repeat the previous picture, but we first
1016                  * wait for a couple of idle loops */
1017                 if( i_idle_loops < 4 )
1018                 {
1019                     p_picture    = NULL;
1020                     display_date = 0;
1021                 }
1022                 else
1023                 {
1024                     /* We set the display date to something high, otherwise
1025                      * we'll have lots of problems with late pictures */
1026                     display_date = current_date + p_vout->p->render_time;
1027                 }
1028             }
1029             else if( p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
1030             {
1031                 display_date = current_date + VOUT_DISPLAY_DELAY;
1032             }
1033
1034             if( p_picture )
1035             {
1036                 if( p_picture->date > 1 )
1037                 {
1038                     p_vout->p->i_picture_displayed_date = p_picture->date;
1039                     if( p_picture != p_last && !p_vout->p->b_picture_displayed )
1040                     {
1041                         p_vout->p->b_picture_displayed = true;
1042                         vlc_cond_signal( &p_vout->p->picture_wait );
1043                     }
1044                 }
1045                 p_vout->p->p_picture_displayed = p_picture;
1046             }
1047         }
1048
1049         /* */
1050         const int i_postproc_type = p_vout->p->i_picture_qtype;
1051         const int i_postproc_state = (p_vout->p->i_picture_qtype != QTYPE_NONE) - (i_picture_qtype_last != QTYPE_NONE);
1052
1053         const bool b_picture_interlaced = p_vout->p->b_picture_interlaced;
1054         const int  i_picture_interlaced_state = (!!p_vout->p->b_picture_interlaced) - (!!b_picture_interlaced_last);
1055
1056         vlc_mutex_unlock( &p_vout->picture_lock );
1057
1058         if( p_picture == NULL )
1059             i_idle_loops++;
1060
1061         p_filtered_picture = NULL;
1062         if( p_picture )
1063         {
1064             vlc_mutex_lock( &p_vout->p->vfilter_lock );
1065             p_filtered_picture = filter_chain_VideoFilter( p_vout->p->p_vf2_chain,
1066                                                            p_picture );
1067             vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1068         }
1069
1070         const bool b_snapshot = vout_snapshot_IsRequested( &p_vout->p->snapshot );
1071
1072         /*
1073          * Check for subpictures to display
1074          */
1075         mtime_t spu_render_time;
1076         if( p_vout->p->b_paused )
1077             spu_render_time = p_vout->p->i_pause_date;
1078         else if( p_picture )
1079             spu_render_time = p_picture->date > 1 ? p_picture->date : mdate();
1080         else
1081             spu_render_time = 0;
1082
1083         subpicture_t *p_subpic = spu_SortSubpictures( p_vout->p->p_spu,
1084                                                       spu_render_time,
1085                                                       b_snapshot );
1086         /*
1087          * Perform rendering
1088          */
1089         vout_statistic_Update( &p_vout->p->statistic, 1, 0 );
1090         p_directbuffer = vout_RenderPicture( p_vout,
1091                                              p_filtered_picture, p_subpic,
1092                                              spu_render_time );
1093
1094         /*
1095          * Take a snapshot if requested
1096          */
1097         if( p_directbuffer && b_snapshot )
1098             vout_snapshot_Set( &p_vout->p->snapshot,
1099                                &p_vout->fmt_out, p_directbuffer );
1100
1101         /*
1102          * Call the plugin-specific rendering method if there is one
1103          */
1104         if( p_filtered_picture != NULL && p_directbuffer != NULL )
1105         {
1106             /* Render the direct buffer returned by vout_RenderPicture */
1107             vout_RenderWrapper( p_vout, p_directbuffer );
1108         }
1109
1110         /*
1111          * Sleep, wake up
1112          */
1113         if( display_date != 0 && p_directbuffer != NULL )
1114         {
1115             mtime_t current_render_time = mdate() - current_date;
1116             /* if render time is very large we don't include it in the mean */
1117             if( current_render_time < p_vout->p->render_time +
1118                 VOUT_DISPLAY_DELAY )
1119             {
1120                 /* Store render time using a sliding mean weighting to
1121                  * current value in a 3 to 1 ratio*/
1122                 p_vout->p->render_time *= 3;
1123                 p_vout->p->render_time += current_render_time;
1124                 p_vout->p->render_time >>= 2;
1125             }
1126             else
1127                 msg_Dbg( p_vout, "skipped big render time %d > %d", (int) current_render_time,
1128                  (int) (p_vout->p->render_time +VOUT_DISPLAY_DELAY ) ) ;
1129         }
1130
1131         /* Give back change lock */
1132         vlc_mutex_unlock( &p_vout->change_lock );
1133
1134         /* Sleep a while or until a given date */
1135         if( display_date != 0 )
1136         {
1137             /* If there are *vout* filters in the chain, better give them the picture
1138              * in advance */
1139             if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
1140             {
1141                 mwait( display_date - VOUT_MWAIT_TOLERANCE );
1142             }
1143         }
1144         else
1145         {
1146             /* Wait until a frame is being sent or a spurious wakeup (not a problem here) */
1147             vlc_mutex_lock( &p_vout->picture_lock );
1148             vlc_cond_timedwait( &p_vout->p->picture_wait, &p_vout->picture_lock, current_date + VOUT_IDLE_SLEEP );
1149             vlc_mutex_unlock( &p_vout->picture_lock );
1150         }
1151
1152         /* On awakening, take back lock and send immediately picture
1153          * to display. */
1154         /* Note: p_vout->p->b_done could be true here and now */
1155         vlc_mutex_lock( &p_vout->change_lock );
1156
1157         /*
1158          * Display the previously rendered picture
1159          */
1160         if( p_filtered_picture != NULL && p_directbuffer != NULL )
1161         {
1162             /* Display the direct buffer returned by vout_RenderPicture */
1163             vout_DisplayWrapper( p_vout, p_directbuffer );
1164
1165             /* Tell the vout this was the last picture and that it does not
1166              * need to be forced anymore. */
1167             p_picture->b_force = false;
1168         }
1169
1170         /* Drop the filtered picture if created by video filters */
1171         if( p_filtered_picture != NULL && p_filtered_picture != p_picture )
1172         {
1173             vlc_mutex_lock( &p_vout->picture_lock );
1174             vout_UsePictureLocked( p_vout, p_filtered_picture );
1175             vlc_mutex_unlock( &p_vout->picture_lock );
1176         }
1177
1178         if( p_picture != NULL )
1179         {
1180             /* Reinitialize idle loop count */
1181             i_idle_loops = 0;
1182         }
1183
1184         /*
1185          * Check events and manage thread
1186          */
1187         if( vout_ManageWrapper( p_vout ) )
1188         {
1189             /* A fatal error occurred, and the thread must terminate
1190              * immediately, without displaying anything - setting b_error to 1
1191              * causes the immediate end of the main while() loop. */
1192             // FIXME pf_end
1193             p_vout->p->b_error = 1;
1194             break;
1195         }
1196
1197         if( p_vout->i_changes & VOUT_ON_TOP_CHANGE )
1198             p_vout->i_changes &= ~VOUT_ON_TOP_CHANGE;
1199
1200         if( p_vout->i_changes & VOUT_PICTURE_BUFFERS_CHANGE )
1201         {
1202             /* This happens when the picture buffers need to be recreated.
1203              * This is useful on multimonitor displays for instance.
1204              *
1205              * Warning: This only works when the vout creates only 1 picture
1206              * buffer!! */
1207             p_vout->i_changes &= ~VOUT_PICTURE_BUFFERS_CHANGE;
1208
1209             vlc_mutex_lock( &p_vout->picture_lock );
1210
1211             vout_EndWrapper( p_vout );
1212
1213             I_OUTPUTPICTURES = I_RENDERPICTURES = 0;
1214
1215             p_vout->p->b_error = InitThread( p_vout );
1216             if( p_vout->p->b_error )
1217                 msg_Err( p_vout, "InitThread after VOUT_PICTURE_BUFFERS_CHANGE failed" );
1218
1219             vlc_cond_signal( &p_vout->p->picture_wait );
1220             vlc_mutex_unlock( &p_vout->picture_lock );
1221
1222             if( p_vout->p->b_error )
1223                 break;
1224         }
1225
1226         /* Post processing */
1227         if( i_postproc_state == 1 )
1228             PostProcessEnable( p_vout );
1229         else if( i_postproc_state == -1 )
1230             PostProcessDisable( p_vout );
1231         if( i_postproc_state != 0 )
1232             i_picture_qtype_last = i_postproc_type;
1233
1234         /* Deinterlacing
1235          * Wait 30s before quiting interlacing mode */
1236         if( ( i_picture_interlaced_state == 1 ) ||
1237             ( i_picture_interlaced_state == -1 && i_picture_interlaced_last_date + 30000000 < current_date ) )
1238         {
1239             DeinterlaceNeeded( p_vout, b_picture_interlaced );
1240             b_picture_interlaced_last = b_picture_interlaced;
1241         }
1242         if( b_picture_interlaced )
1243             i_picture_interlaced_last_date = current_date;
1244
1245
1246         /* Check for "video filter2" changes */
1247         vlc_mutex_lock( &p_vout->p->vfilter_lock );
1248         if( p_vout->p->psz_vf2 )
1249         {
1250             es_format_t fmt;
1251
1252             es_format_Init( &fmt, VIDEO_ES, p_vout->fmt_render.i_chroma );
1253             fmt.video = p_vout->fmt_render;
1254             filter_chain_Reset( p_vout->p->p_vf2_chain, &fmt, &fmt );
1255
1256             if( filter_chain_AppendFromString( p_vout->p->p_vf2_chain,
1257                                                p_vout->p->psz_vf2 ) < 0 )
1258                 msg_Err( p_vout, "Video filter chain creation failed" );
1259
1260             free( p_vout->p->psz_vf2 );
1261             p_vout->p->psz_vf2 = NULL;
1262
1263             if( i_picture_qtype_last != QTYPE_NONE )
1264                 PostProcessSetFilterQuality( p_vout );
1265         }
1266         vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1267     }
1268
1269     /*
1270      * Error loop - wait until the thread destruction is requested
1271      */
1272     if( p_vout->p->b_error )
1273         ErrorThread( p_vout );
1274
1275     /* Clean thread */
1276     CleanThread( p_vout );
1277
1278 exit_thread:
1279     /* End of thread */
1280     EndThread( p_vout );
1281     vlc_mutex_unlock( &p_vout->change_lock );
1282
1283     if( b_has_wrapper )
1284         vout_CloseWrapper( p_vout );
1285
1286     return NULL;
1287 }
1288
1289 /*****************************************************************************
1290  * ErrorThread: RunThread() error loop
1291  *****************************************************************************
1292  * This function is called when an error occurred during thread main's loop.
1293  * The thread can still receive feed, but must be ready to terminate as soon
1294  * as possible.
1295  *****************************************************************************/
1296 static void ErrorThread( vout_thread_t *p_vout )
1297 {
1298     /* Wait until a `close' order */
1299     while( !p_vout->p->b_done )
1300         vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
1301 }
1302
1303 /*****************************************************************************
1304  * CleanThread: clean up after InitThread
1305  *****************************************************************************
1306  * This function is called after a sucessful
1307  * initialization. It frees all resources allocated by InitThread.
1308  * XXX You have to enter it with change_lock taken.
1309  *****************************************************************************/
1310 static void CleanThread( vout_thread_t *p_vout )
1311 {
1312     int     i_index;                                        /* index in heap */
1313
1314     /* Destroy all remaining pictures */
1315     for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++ )
1316     {
1317         if ( p_vout->p_picture[i_index].i_type == MEMORY_PICTURE )
1318         {
1319             free( p_vout->p_picture[i_index].p_data_orig );
1320         }
1321     }
1322
1323     /* Destroy translation tables */
1324     if( !p_vout->p->b_error )
1325         vout_EndWrapper( p_vout );
1326 }
1327
1328 /*****************************************************************************
1329  * EndThread: thread destruction
1330  *****************************************************************************
1331  * This function is called when the thread ends.
1332  * It frees all resources not allocated by InitThread.
1333  * XXX You have to enter it with change_lock taken.
1334  *****************************************************************************/
1335 static void EndThread( vout_thread_t *p_vout )
1336 {
1337     /* FIXME does that function *really* need to be called inside the thread ? */
1338
1339     /* Detach subpicture unit from both input and vout */
1340     spu_Attach( p_vout->p->p_spu, VLC_OBJECT(p_vout), false );
1341     vlc_object_detach( p_vout->p->p_spu );
1342
1343     /* Destroy the video filters2 */
1344     filter_chain_Delete( p_vout->p->p_vf2_chain );
1345 }
1346
1347 /* following functions are local */
1348
1349 /**
1350  * This function copies all RGB informations from a picture_heap_t into
1351  * a video_format_t
1352  */
1353 static void VideoFormatImportRgb( video_format_t *p_fmt, const picture_heap_t *p_heap )
1354 {
1355     p_fmt->i_rmask = p_heap->i_rmask;
1356     p_fmt->i_gmask = p_heap->i_gmask;
1357     p_fmt->i_bmask = p_heap->i_bmask;
1358     p_fmt->i_rrshift = p_heap->i_rrshift;
1359     p_fmt->i_lrshift = p_heap->i_lrshift;
1360     p_fmt->i_rgshift = p_heap->i_rgshift;
1361     p_fmt->i_lgshift = p_heap->i_lgshift;
1362     p_fmt->i_rbshift = p_heap->i_rbshift;
1363     p_fmt->i_lbshift = p_heap->i_lbshift;
1364 }
1365
1366 /**
1367  * This funtion copes all RGB informations from a video_format_t into
1368  * a picture_heap_t
1369  */
1370 static void VideoFormatExportRgb( const video_format_t *p_fmt, picture_heap_t *p_heap )
1371 {
1372     p_heap->i_rmask = p_fmt->i_rmask;
1373     p_heap->i_gmask = p_fmt->i_gmask;
1374     p_heap->i_bmask = p_fmt->i_bmask;
1375     p_heap->i_rrshift = p_fmt->i_rrshift;
1376     p_heap->i_lrshift = p_fmt->i_lrshift;
1377     p_heap->i_rgshift = p_fmt->i_rgshift;
1378     p_heap->i_lgshift = p_fmt->i_lgshift;
1379     p_heap->i_rbshift = p_fmt->i_rbshift;
1380     p_heap->i_lbshift = p_fmt->i_lbshift;
1381 }
1382
1383 /**
1384  * This function computes rgb shifts from masks
1385  */
1386 static void PictureHeapFixRgb( picture_heap_t *p_heap )
1387 {
1388     video_format_t fmt;
1389
1390     /* */
1391     fmt.i_chroma = p_heap->i_chroma;
1392     VideoFormatImportRgb( &fmt, p_heap );
1393
1394     /* */
1395     video_format_FixRgb( &fmt );
1396
1397     VideoFormatExportRgb( &fmt, p_heap );
1398 }
1399
1400 /*****************************************************************************
1401  * object variables callbacks: a bunch of object variables are used by the
1402  * interfaces to interact with the vout.
1403  *****************************************************************************/
1404 static int FilterCallback( vlc_object_t *p_this, char const *psz_cmd,
1405                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1406 {
1407     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1408     input_thread_t *p_input;
1409     (void)psz_cmd; (void)oldval; (void)p_data;
1410
1411     p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
1412                                                  FIND_PARENT );
1413     if (!p_input)
1414     {
1415         msg_Err( p_vout, "Input not found" );
1416         return VLC_EGENERIC;
1417     }
1418
1419     var_SetBool( p_vout, "intf-change", true );
1420
1421     /* Modify input as well because the vout might have to be restarted */
1422     var_Create( p_input, "vout-filter", VLC_VAR_STRING );
1423     var_SetString( p_input, "vout-filter", newval.psz_string );
1424
1425     /* Now restart current video stream */
1426     input_Control( p_input, INPUT_RESTART_ES, -VIDEO_ES );
1427     vlc_object_release( p_input );
1428
1429     return VLC_SUCCESS;
1430 }
1431
1432 /*****************************************************************************
1433  * Video Filter2 stuff
1434  *****************************************************************************/
1435 static int VideoFilter2Callback( vlc_object_t *p_this, char const *psz_cmd,
1436                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1437 {
1438     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1439     (void)psz_cmd; (void)oldval; (void)p_data;
1440
1441     vlc_mutex_lock( &p_vout->p->vfilter_lock );
1442     p_vout->p->psz_vf2 = strdup( newval.psz_string );
1443     vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1444
1445     return VLC_SUCCESS;
1446 }
1447
1448 /*****************************************************************************
1449  * Post-processing
1450  *****************************************************************************/
1451 static bool PostProcessIsPresent( const char *psz_filter )
1452 {
1453     const char  *psz_pp = "postproc";
1454     const size_t i_pp = strlen(psz_pp);
1455     return psz_filter &&
1456            !strncmp( psz_filter, psz_pp, strlen(psz_pp) ) &&
1457            ( psz_filter[i_pp] == '\0' || psz_filter[i_pp] == ':' );
1458 }
1459
1460 static int PostProcessCallback( vlc_object_t *p_this, char const *psz_cmd,
1461                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1462 {
1463     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1464     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
1465
1466     static const char *psz_pp = "postproc";
1467
1468     char *psz_vf2 = var_GetString( p_vout, "video-filter" );
1469
1470     if( newval.i_int <= 0 )
1471     {
1472         if( PostProcessIsPresent( psz_vf2 ) )
1473         {
1474             strcpy( psz_vf2, &psz_vf2[strlen(psz_pp)] );
1475             if( *psz_vf2 == ':' )
1476                 strcpy( psz_vf2, &psz_vf2[1] );
1477         }
1478     }
1479     else
1480     {
1481         if( !PostProcessIsPresent( psz_vf2 ) )
1482         {
1483             if( psz_vf2 )
1484             {
1485                 char *psz_tmp = psz_vf2;
1486                 if( asprintf( &psz_vf2, "%s:%s", psz_pp, psz_tmp ) < 0 )
1487                     psz_vf2 = psz_tmp;
1488                 else
1489                     free( psz_tmp );
1490             }
1491             else
1492             {
1493                 psz_vf2 = strdup( psz_pp );
1494             }
1495         }
1496     }
1497     if( psz_vf2 )
1498     {
1499         var_SetString( p_vout, "video-filter", psz_vf2 );
1500         free( psz_vf2 );
1501     }
1502
1503     return VLC_SUCCESS;
1504 }
1505 static void PostProcessEnable( vout_thread_t *p_vout )
1506 {
1507     vlc_value_t text;
1508     msg_Dbg( p_vout, "Post-processing available" );
1509     var_Create( p_vout, "postprocess", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
1510     text.psz_string = _("Post processing");
1511     var_Change( p_vout, "postprocess", VLC_VAR_SETTEXT, &text, NULL );
1512
1513     for( int i = 0; i <= 6; i++ )
1514     {
1515         vlc_value_t val;
1516         vlc_value_t text;
1517         char psz_text[1+1];
1518
1519         val.i_int = i;
1520         snprintf( psz_text, sizeof(psz_text), "%d", i );
1521         if( i == 0 )
1522             text.psz_string = _("Disable");
1523         else
1524             text.psz_string = psz_text;
1525         var_Change( p_vout, "postprocess", VLC_VAR_ADDCHOICE, &val, &text );
1526     }
1527     var_AddCallback( p_vout, "postprocess", PostProcessCallback, NULL );
1528
1529     /* */
1530     char *psz_filter = var_GetNonEmptyString( p_vout, "video-filter" );
1531     int i_postproc_q = 0;
1532     if( PostProcessIsPresent( psz_filter ) )
1533         i_postproc_q = var_CreateGetInteger( p_vout, "postproc-q" );
1534
1535     var_SetInteger( p_vout, "postprocess", i_postproc_q );
1536
1537     free( psz_filter );
1538 }
1539 static void PostProcessDisable( vout_thread_t *p_vout )
1540 {
1541     msg_Dbg( p_vout, "Post-processing no more available" );
1542     var_Destroy( p_vout, "postprocess" );
1543 }
1544 static void PostProcessSetFilterQuality( vout_thread_t *p_vout )
1545 {
1546     vlc_object_t *p_pp = vlc_object_find_name( p_vout, "postproc", FIND_CHILD );
1547     if( !p_pp )
1548         return;
1549
1550     var_SetInteger( p_pp, "postproc-q", var_GetInteger( p_vout, "postprocess" ) );
1551     vlc_object_release( p_pp );
1552 }
1553
1554
1555 static void DisplayTitleOnOSD( vout_thread_t *p_vout )
1556 {
1557     const mtime_t i_start = mdate();
1558     const mtime_t i_stop = i_start + INT64_C(1000) * p_vout->p->i_title_timeout;
1559
1560     if( i_stop <= i_start )
1561         return;
1562
1563     vlc_assert_locked( &p_vout->change_lock );
1564
1565     vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN,
1566                            p_vout->p->psz_title, NULL,
1567                            p_vout->p->i_title_position,
1568                            30 + p_vout->fmt_in.i_width
1569                               - p_vout->fmt_in.i_visible_width
1570                               - p_vout->fmt_in.i_x_offset,
1571                            20 + p_vout->fmt_in.i_y_offset,
1572                            i_start, i_stop );
1573
1574     free( p_vout->p->psz_title );
1575
1576     p_vout->p->psz_title = NULL;
1577 }
1578
1579 /*****************************************************************************
1580  * Deinterlacing
1581  *****************************************************************************/
1582 typedef struct
1583 {
1584     const char *psz_mode;
1585     bool       b_vout_filter;
1586 } deinterlace_mode_t;
1587
1588 /* XXX
1589  * You can use the non vout filter if and only if the video properties stay the
1590  * same (width/height/chroma/fps), at least for now.
1591  */
1592 static const deinterlace_mode_t p_deinterlace_mode[] = {
1593     { "",        false },
1594     //{ "discard", true },
1595     { "blend",   false },
1596     //{ "mean",    true  },
1597     //{ "bob",     true },
1598     //{ "linear",  true },
1599     { "x",       false },
1600     //{ "yadif",   true },
1601     //{ "yadif2x", true },
1602     { NULL,      false }
1603 };
1604 static const deinterlace_mode_t *DeinterlaceGetMode( const char *psz_mode )
1605 {
1606     for( const deinterlace_mode_t *p_mode = &p_deinterlace_mode[0]; p_mode->psz_mode; p_mode++ )
1607     {
1608         if( !strcmp( p_mode->psz_mode, psz_mode ) )
1609             return p_mode;
1610     }
1611     return NULL;
1612 }
1613
1614 static char *FilterFind( char *psz_filter_base, const char *psz_module )
1615 {
1616     const size_t i_module = strlen( psz_module );
1617     const char *psz_filter = psz_filter_base;
1618
1619     if( !psz_filter || i_module <= 0 )
1620         return NULL;
1621
1622     for( ;; )
1623     {
1624         char *psz_find = strstr( psz_filter, psz_module );
1625         if( !psz_find )
1626             return NULL;
1627         if( psz_find[i_module] == '\0' || psz_find[i_module] == ':' )
1628             return psz_find;
1629         psz_filter = &psz_find[i_module];
1630     }
1631 }
1632
1633 static bool DeinterlaceIsPresent( vout_thread_t *p_vout, bool b_vout_filter )
1634 {
1635     char *psz_filter = var_GetNonEmptyString( p_vout, b_vout_filter ? "vout-filter" : "video-filter" );
1636
1637     bool b_found = FilterFind( psz_filter, "deinterlace" ) != NULL;
1638
1639     free( psz_filter );
1640
1641     return b_found;
1642 }
1643
1644 static void DeinterlaceRemove( vout_thread_t *p_vout, bool b_vout_filter )
1645 {
1646     const char *psz_variable = b_vout_filter ? "vout-filter" : "video-filter";
1647     char *psz_filter = var_GetNonEmptyString( p_vout, psz_variable );
1648
1649     char *psz = FilterFind( psz_filter, "deinterlace" );
1650     if( !psz )
1651     {
1652         free( psz_filter );
1653         return;
1654     }
1655
1656     /* */
1657     strcpy( &psz[0], &psz[strlen("deinterlace")] );
1658     if( *psz == ':' )
1659         strcpy( &psz[0], &psz[1] );
1660
1661     var_SetString( p_vout, psz_variable, psz_filter );
1662     free( psz_filter );
1663 }
1664 static void DeinterlaceAdd( vout_thread_t *p_vout, bool b_vout_filter )
1665 {
1666     const char *psz_variable = b_vout_filter ? "vout-filter" : "video-filter";
1667
1668     char *psz_filter = var_GetNonEmptyString( p_vout, psz_variable );
1669
1670     if( FilterFind( psz_filter, "deinterlace" ) )
1671     {
1672         free( psz_filter );
1673         return;
1674     }
1675
1676     /* */
1677     if( psz_filter )
1678     {
1679         char *psz_tmp = psz_filter;
1680         if( asprintf( &psz_filter, "%s:%s", psz_tmp, "deinterlace" ) < 0 )
1681             psz_filter = psz_tmp;
1682         else
1683             free( psz_tmp );
1684     }
1685     else
1686     {
1687         psz_filter = strdup( "deinterlace" );
1688     }
1689
1690     if( psz_filter )
1691     {
1692         var_SetString( p_vout, psz_variable, psz_filter );
1693         free( psz_filter );
1694     }
1695 }
1696
1697 static void DeinterlaceSave( vout_thread_t *p_vout, int i_deinterlace, const char *psz_mode, bool is_needed )
1698 {
1699     /* We have to set input variable to ensure restart support
1700      * XXX it is only needed because of vout-filter but must be done
1701      * for non video filter anyway */
1702     vlc_object_t *p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT, FIND_PARENT );
1703     if( !p_input )
1704         return;
1705
1706     /* Another hack for "vout filter" mode */
1707     if( i_deinterlace < 0 )
1708         i_deinterlace = is_needed ? -2 : -3;
1709
1710     var_Create( p_input, "deinterlace", VLC_VAR_INTEGER );
1711     var_SetInteger( p_input, "deinterlace", i_deinterlace );
1712
1713     static const char * const ppsz_variable[] = {
1714         "deinterlace-mode",
1715         "filter-deinterlace-mode",
1716         "sout-deinterlace-mode",
1717         NULL
1718     };
1719     for( int i = 0; ppsz_variable[i]; i++ )
1720     {
1721         var_Create( p_input, ppsz_variable[i], VLC_VAR_STRING );
1722         var_SetString( p_input, ppsz_variable[i], psz_mode );
1723     }
1724
1725     vlc_object_release( p_input );
1726 }
1727 static int DeinterlaceCallback( vlc_object_t *p_this, char const *psz_cmd,
1728                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1729 {
1730     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(newval); VLC_UNUSED(p_data);
1731     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1732
1733     /* */
1734     const int  i_deinterlace = var_GetInteger( p_this, "deinterlace" );
1735     char       *psz_mode     = var_GetString( p_this, "deinterlace-mode" );
1736     const bool is_needed     = var_GetBool( p_this, "deinterlace-needed" );
1737     if( !psz_mode )
1738         return VLC_EGENERIC;
1739
1740     DeinterlaceSave( p_vout, i_deinterlace, psz_mode, is_needed );
1741
1742     /* */
1743     bool b_vout_filter = false;
1744     const deinterlace_mode_t *p_mode = DeinterlaceGetMode( psz_mode );
1745     if( p_mode )
1746         b_vout_filter = p_mode->b_vout_filter;
1747
1748     /* */
1749     char *psz_old;
1750     if( b_vout_filter )
1751     {
1752         psz_old = var_CreateGetString( p_vout, "filter-deinterlace-mode" );
1753     }
1754     else
1755     {
1756         psz_old = var_CreateGetString( p_vout, "sout-deinterlace-mode" );
1757         var_SetString( p_vout, "sout-deinterlace-mode", psz_mode );
1758     }
1759
1760     msg_Dbg( p_vout, "deinterlace %d, mode %s, is_needed %d", i_deinterlace, psz_mode, is_needed );
1761     if( i_deinterlace == 0 || ( i_deinterlace == -1 && !is_needed ) )
1762     {
1763         DeinterlaceRemove( p_vout, false );
1764         DeinterlaceRemove( p_vout, true );
1765     }
1766     else
1767     {
1768         if( !DeinterlaceIsPresent( p_vout, b_vout_filter ) )
1769         {
1770             DeinterlaceRemove( p_vout, !b_vout_filter );
1771             DeinterlaceAdd( p_vout, b_vout_filter );
1772         }
1773         else
1774         {
1775             /* The deinterlace filter was already inserted but we have changed the mode */
1776             DeinterlaceRemove( p_vout, !b_vout_filter );
1777             if( psz_old && strcmp( psz_old, psz_mode ) )
1778                 var_TriggerCallback( p_vout, b_vout_filter ? "vout-filter" : "video-filter" );
1779         }
1780     }
1781
1782     /* */
1783     free( psz_old );
1784     free( psz_mode );
1785     return VLC_SUCCESS;
1786 }
1787
1788 static void DeinterlaceEnable( vout_thread_t *p_vout )
1789 {
1790     vlc_value_t val, text;
1791
1792     if( !p_vout->p->b_first_vout )
1793         return;
1794
1795     msg_Dbg( p_vout, "Deinterlacing available" );
1796
1797     /* Create the configuration variables */
1798     /* */
1799     var_Create( p_vout, "deinterlace", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT | VLC_VAR_HASCHOICE );
1800     int i_deinterlace = var_GetInteger( p_vout, "deinterlace" );
1801
1802     text.psz_string = _("Deinterlace");
1803     var_Change( p_vout, "deinterlace", VLC_VAR_SETTEXT, &text, NULL );
1804
1805     const module_config_t *p_optd = config_FindConfig( VLC_OBJECT(p_vout), "deinterlace" );
1806     var_Change( p_vout, "deinterlace", VLC_VAR_CLEARCHOICES, NULL, NULL );
1807     for( int i = 0; p_optd && i < p_optd->i_list; i++ )
1808     {
1809         val.i_int  = p_optd->pi_list[i];
1810         text.psz_string = (char*)vlc_gettext(p_optd->ppsz_list_text[i]);
1811         var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
1812     }
1813     var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );
1814     /* */
1815     var_Create( p_vout, "deinterlace-mode", VLC_VAR_STRING | VLC_VAR_DOINHERIT | VLC_VAR_HASCHOICE );
1816     char *psz_deinterlace = var_GetNonEmptyString( p_vout, "deinterlace-mode" );
1817
1818     text.psz_string = _("Deinterlace mode");
1819     var_Change( p_vout, "deinterlace-mode", VLC_VAR_SETTEXT, &text, NULL );
1820
1821     const module_config_t *p_optm = config_FindConfig( VLC_OBJECT(p_vout), "deinterlace-mode" );
1822     var_Change( p_vout, "deinterlace-mode", VLC_VAR_CLEARCHOICES, NULL, NULL );
1823     for( int i = 0; p_optm && i < p_optm->i_list; i++ )
1824     {
1825         if( !DeinterlaceGetMode( p_optm->ppsz_list[i] ) )
1826             continue;
1827
1828         val.psz_string  = p_optm->ppsz_list[i];
1829         text.psz_string = (char*)vlc_gettext(p_optm->ppsz_list_text[i]);
1830         var_Change( p_vout, "deinterlace-mode", VLC_VAR_ADDCHOICE, &val, &text );
1831     }
1832     var_AddCallback( p_vout, "deinterlace-mode", DeinterlaceCallback, NULL );
1833     /* */
1834     var_Create( p_vout, "deinterlace-needed", VLC_VAR_BOOL );
1835     var_AddCallback( p_vout, "deinterlace-needed", DeinterlaceCallback, NULL );
1836
1837     /* Override the initial value from filters if present */
1838     char *psz_filter_mode = NULL;
1839     if( DeinterlaceIsPresent( p_vout, true ) )
1840         psz_filter_mode = var_CreateGetNonEmptyString( p_vout, "filter-deinterlace-mode" );
1841     else if( DeinterlaceIsPresent( p_vout, false ) )
1842         psz_filter_mode = var_CreateGetNonEmptyString( p_vout, "sout-deinterlace-mode" );
1843     if( psz_filter_mode )
1844     {
1845         free( psz_deinterlace );
1846         if( i_deinterlace >= -1 )
1847             i_deinterlace = 1;
1848         psz_deinterlace = psz_filter_mode;
1849     }
1850
1851     /* */
1852     if( i_deinterlace == -2 )
1853         p_vout->p->b_picture_interlaced = true;
1854     else if( i_deinterlace == -3 )
1855         p_vout->p->b_picture_interlaced = false;
1856     if( i_deinterlace < 0 )
1857         i_deinterlace = -1;
1858
1859     /* */
1860     val.psz_string = psz_deinterlace ? psz_deinterlace : p_optm->orig.psz;
1861     var_Change( p_vout, "deinterlace-mode", VLC_VAR_SETVALUE, &val, NULL );
1862     val.b_bool = p_vout->p->b_picture_interlaced;
1863     var_Change( p_vout, "deinterlace-needed", VLC_VAR_SETVALUE, &val, NULL );
1864
1865     var_SetInteger( p_vout, "deinterlace", i_deinterlace );
1866     free( psz_deinterlace );
1867 }
1868
1869 static void DeinterlaceNeeded( vout_thread_t *p_vout, bool is_interlaced )
1870 {
1871     msg_Dbg( p_vout, "Detected %s video",
1872              is_interlaced ? "interlaced" : "progressive" );
1873     var_SetBool( p_vout, "deinterlace-needed", is_interlaced );
1874 }
1875