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