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_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_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     /* No images in the heap */
 339     p_vout->i_heap_size = 0;
 340
 341     /* Initialize the rendering heap */
 342     I_RENDERPICTURES = 0;
 343
 344     p_vout->fmt_render        = *p_fmt;   /* FIXME palette */
 345     p_vout->fmt_in            = *p_fmt;   /* FIXME palette */
 346
 347     p_vout->render.i_width    = i_width;
 348     p_vout->render.i_height   = i_height;
 349     p_vout->render.i_chroma   = i_chroma;
 350     p_vout->render.i_aspect   = i_aspect;
 351
 352     p_vout->render.i_rmask    = p_fmt->i_rmask;
 353     p_vout->render.i_gmask    = p_fmt->i_gmask;
 354     p_vout->render.i_bmask    = p_fmt->i_bmask;
 355
 356     p_vout->render.i_last_used_pic = -1;
 357     p_vout->render.b_allow_modify_pics = 1;
 358
 359     /* Zero the output heap */
 360     I_OUTPUTPICTURES = 0;
 361     p_vout->output.i_width    = 0;
 362     p_vout->output.i_height   = 0;
 363     p_vout->output.i_chroma   = 0;
 364     p_vout->output.i_aspect   = 0;
 365
 366     p_vout->output.i_rmask    = 0;
 367     p_vout->output.i_gmask    = 0;
 368     p_vout->output.i_bmask    = 0;
 369
 370     /* Initialize misc stuff */
 371     p_vout->i_changes    = 0;
 372     p_vout->b_autoscale  = 1;
 373     p_vout->i_zoom      = ZOOM_FP_FACTOR;
 374     p_vout->b_fullscreen = 0;
 375     p_vout->i_alignment  = 0;
 376     p_vout->p->render_time  = 10;
 377     p_vout->p->c_fps_samples = 0;
 378     vout_statistic_Init( &p_vout->p->statistic );
 379     p_vout->p->b_filter_change = 0;
 380     p_vout->p->b_paused = false;
 381     p_vout->p->i_pause_date = 0;
 382     p_vout->pf_control = NULL;
 383     p_vout->p->i_par_num =
 384     p_vout->p->i_par_den = 1;
 385     p_vout->p->p_picture_displayed = NULL;
 386     p_vout->p->i_picture_displayed_date = 0;
 387     p_vout->p->b_picture_displayed = false;
 388     p_vout->p->b_picture_empty = false;
 389     p_vout->p->i_picture_qtype = QTYPE_NONE;
 390     p_vout->p->b_picture_interlaced = false;
 391
 392     vlc_mouse_Init( &p_vout->p->mouse );
 393
 394     vout_snapshot_Init( &p_vout->p->snapshot );
 395
 396     /* Initialize locks */
 397     vlc_mutex_init( &p_vout->picture_lock );
 398     vlc_cond_init( &p_vout->p->picture_wait );
 399     vlc_mutex_init( &p_vout->change_lock );
 400     vlc_mutex_init( &p_vout->p->vfilter_lock );
 401
 402     /* Mouse coordinates */
 403     var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
 404     var_Create( p_vout, "mouse-moved", VLC_VAR_COORDS );
 405     var_Create( p_vout, "mouse-clicked", VLC_VAR_COORDS );
 406     /* Mouse object (area of interest in a video filter) */
 407     var_Create( p_vout, "mouse-object", VLC_VAR_BOOL );
 408
 409     /* Attach the new object now so we can use var inheritance below */
 410     vlc_object_attach( p_vout, p_parent );
 411
 412     /* Initialize subpicture unit */
 413     p_vout->p_spu = spu_Create( p_vout );
 414
 415     /* */
 416     spu_Init( p_vout->p_spu );
 417
 418     spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), true );
 419
 420     /* Take care of some "interface/control" related initialisations */
 421     vout_IntfInit( p_vout );
 422
 423     /* If the parent is not a VOUT object, that means we are at the start of
 424      * the video output pipe */
 425     if( vlc_internals( p_parent )->i_object_type != VLC_OBJECT_VOUT )
 426     {
 427         /* Look for the default filter configuration */
 428         p_vout->p->psz_filter_chain =
 429             var_CreateGetStringCommand( p_vout, "vout-filter" );
 430
 431         /* Apply video filter2 objects on the first vout */
 432         p_vout->p->psz_vf2 =
 433             var_CreateGetStringCommand( p_vout, "video-filter" );
 434
 435         p_vout->p->b_first_vout = true;
 436     }
 437     else
 438     {
 439         /* continue the parent's filter chain */
 440         char *psz_tmp;
 441
 442         /* Ugly hack to jump to our configuration chain */
 443         p_vout->p->psz_filter_chain
 444             = ((vout_thread_t *)p_parent)->p->psz_filter_chain;
 445         p_vout->p->psz_filter_chain
 446             = config_ChainCreate( &psz_tmp, &p_cfg, p_vout->p->psz_filter_chain );
 447         config_ChainDestroy( p_cfg );
 448         free( psz_tmp );
 449
 450         /* Create a video filter2 var ... but don't inherit values */
 451         var_Create( p_vout, "video-filter",
 452                     VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
 453         p_vout->p->psz_vf2 = var_GetString( p_vout, "video-filter" );
 454
 455         /* */
 456         p_vout->p->b_first_vout = false;
 457     }
 458
 459     var_AddCallback( p_vout, "video-filter", VideoFilter2Callback, NULL );
 460     p_vout->p->p_vf2_chain = filter_chain_New( p_vout, "video filter2",
 461         false, video_filter_buffer_allocation_init, NULL, p_vout );
 462
 463     /* Choose the video output module */
 464     if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
 465     {
 466         psz_parser = NULL;
 467     }
 468     else
 469     {
 470         psz_parser = strdup( p_vout->p->psz_filter_chain );
 471         p_vout->p->b_title_show = false;
 472     }
 473
 474     /* Create the vout thread */
 475     char *psz_tmp = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
 476     free( psz_parser );
 477     free( psz_tmp );
 478     p_vout->p_cfg = p_cfg;
 479
 480     /* Create a few object variables for interface interaction */
 481     var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 482     text.psz_string = _("Filters");
 483     var_Change( p_vout, "vout-filter", VLC_VAR_SETTEXT, &text, NULL );
 484     var_AddCallback( p_vout, "vout-filter", FilterCallback, NULL );
 485
 486     /* */
 487     DeinterlaceEnable( p_vout );
 488
 489     if( p_vout->p->psz_filter_chain && *p_vout->p->psz_filter_chain )
 490     {
 491         char *psz_tmp;
 492         if( asprintf( &psz_tmp, "%s,none", psz_name ) < 0 )
 493             psz_tmp = strdup( "" );
 494         free( psz_name );
 495         psz_name = psz_tmp;
 496     }
 497     p_vout->p->psz_module_name = psz_name;
 498
 499     /* */
 500     vlc_object_set_destructor( p_vout, vout_Destructor );
 501
 502     /* */
 503     vlc_cond_init( &p_vout->p->change_wait );
 504     if( vlc_clone( &p_vout->p->thread, RunThread, p_vout,
 505                    VLC_THREAD_PRIORITY_OUTPUT ) )
 506     {
 507         spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), false );
 508         spu_Destroy( p_vout->p_spu );
 509         p_vout->p_spu = NULL;
 510         vlc_object_release( p_vout );
 511         return NULL;
 512     }
 513
 514     vlc_mutex_lock( &p_vout->change_lock );
 515     while( !p_vout->p->b_ready )
 516     {   /* We are (ab)using the same condition in opposite directions for
 517          * b_ready and b_done. This works because of the strict ordering. */
 518         assert( !p_vout->p->b_done );
 519         vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
 520     }
 521     vlc_mutex_unlock( &p_vout->change_lock );
 522
 523     if( p_vout->b_error )
 524     {
 525         msg_Err( p_vout, "video output creation failed" );
 526         vout_CloseAndRelease( p_vout );
 527         return NULL;
 528     }
 529
 530     return p_vout;
 531 }
 532
 533 /*****************************************************************************
 534  * vout_Close: Close a vout created by vout_Create.
 535  *****************************************************************************
 536  * You HAVE to call it on vout created by vout_Create before vlc_object_release.
 537  * You should NEVER call it on vout not obtained through vout_Create
 538  * (like with vout_Request or vlc_object_find.)
 539  * You can use vout_CloseAndRelease() as a convenience method.
 540  *****************************************************************************/
 541 void vout_Close( vout_thread_t *p_vout )
 542 {
 543     assert( p_vout );
 544
 545     vlc_mutex_lock( &p_vout->change_lock );
 546     p_vout->p->b_done = true;
 547     vlc_cond_signal( &p_vout->p->change_wait );
 548     vlc_mutex_unlock( &p_vout->change_lock );
 549
 550     vout_snapshot_End( &p_vout->p->snapshot );
 551
 552     vlc_join( p_vout->p->thread, NULL );
 553 }
 554
 555 /* */
 556 static void vout_Destructor( vlc_object_t * p_this )
 557 {
 558     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 559
 560     /* Make sure the vout was stopped first */
 561     //assert( !p_vout->p_module );
 562
 563     free( p_vout->p->psz_module_name );
 564
 565     /* */
 566     if( p_vout->p_spu )
 567         spu_Destroy( p_vout->p_spu );
 568
 569     /* Destroy the locks */
 570     vlc_cond_destroy( &p_vout->p->change_wait );
 571     vlc_cond_destroy( &p_vout->p->picture_wait );
 572     vlc_mutex_destroy( &p_vout->picture_lock );
 573     vlc_mutex_destroy( &p_vout->change_lock );
 574     vlc_mutex_destroy( &p_vout->p->vfilter_lock );
 575
 576     /* */
 577     vout_statistic_Clean( &p_vout->p->statistic );
 578
 579     /* */
 580     vout_snapshot_Clean( &p_vout->p->snapshot );
 581
 582     /* */
 583     free( p_vout->p->psz_filter_chain );
 584     free( p_vout->p->psz_title );
 585
 586     config_ChainDestroy( p_vout->p_cfg );
 587
 588     free( p_vout->p );
 589
 590 }
 591
 592 /* */
 593 void vout_ChangePause( vout_thread_t *p_vout, bool b_paused, mtime_t i_date )
 594 {
 595     vlc_mutex_lock( &p_vout->change_lock );
 596
 597     assert( !p_vout->p->b_paused || !b_paused );
 598
 599     vlc_mutex_lock( &p_vout->picture_lock );
 600
 601     p_vout->p->i_picture_displayed_date = 0;
 602
 603     if( p_vout->p->b_paused )
 604     {
 605         const mtime_t i_duration = i_date - p_vout->p->i_pause_date;
 606
 607         for( int i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
 608         {
 609             picture_t *p_pic = PP_RENDERPICTURE[i_index];
 610
 611             if( p_pic->i_status == READY_PICTURE )
 612                 p_pic->date += i_duration;
 613         }
 614         vlc_cond_signal( &p_vout->p->picture_wait );
 615         vlc_mutex_unlock( &p_vout->picture_lock );
 616
 617         spu_OffsetSubtitleDate( p_vout->p_spu, i_duration );
 618     }
 619     else
 620     {
 621         vlc_mutex_unlock( &p_vout->picture_lock );
 622     }
 623     p_vout->p->b_paused = b_paused;
 624     p_vout->p->i_pause_date = i_date;
 625
 626     vlc_mutex_unlock( &p_vout->change_lock );
 627 }
 628
 629 void vout_GetResetStatistic( vout_thread_t *p_vout, int *pi_displayed, int *pi_lost )
 630 {
 631     vout_statistic_GetReset( &p_vout->p->statistic,
 632                              pi_displayed, pi_lost );
 633 }
 634
 635 void vout_Flush( vout_thread_t *p_vout, mtime_t i_date )
 636 {
 637     vlc_mutex_lock( &p_vout->picture_lock );
 638     p_vout->p->i_picture_displayed_date = 0;
 639     for( int i = 0; i < p_vout->render.i_pictures; i++ )
 640     {
 641         picture_t *p_pic = p_vout->render.pp_picture[i];
 642
 643         if( p_pic->i_status == READY_PICTURE ||
 644             p_pic->i_status == DISPLAYED_PICTURE )
 645         {
 646             /* We cannot change picture status if it is in READY_PICTURE state,
 647              * Just make sure they won't be displayed */
 648             if( p_pic->date > i_date )
 649                 p_pic->date = i_date;
 650         }
 651     }
 652     vlc_cond_signal( &p_vout->p->picture_wait );
 653     vlc_mutex_unlock( &p_vout->picture_lock );
 654 }
 655
 656 void vout_FixLeaks( vout_thread_t *p_vout, bool b_forced )
 657 {
 658     int i_pic, i_ready_pic;
 659
 660     vlc_mutex_lock( &p_vout->picture_lock );
 661
 662     for( i_pic = 0, i_ready_pic = 0; i_pic < p_vout->render.i_pictures && !b_forced; i_pic++ )
 663     {
 664         const picture_t *p_pic = p_vout->render.pp_picture[i_pic];
 665
 666         if( p_pic->i_status == READY_PICTURE )
 667         {
 668             i_ready_pic++;
 669             /* If we have at least 2 ready pictures, wait for the vout thread to
 670              * process one */
 671             if( i_ready_pic >= 2 )
 672                 break;
 673
 674             continue;
 675         }
 676
 677         if( p_pic->i_status == DISPLAYED_PICTURE )
 678         {
 679             /* If at least one displayed picture is not referenced
 680              * let vout free it */
 681             if( p_pic->i_refcount == 0 )
 682                 break;
 683         }
 684     }
 685     if( i_pic < p_vout->render.i_pictures && !b_forced )
 686     {
 687         vlc_mutex_unlock( &p_vout->picture_lock );
 688         return;
 689     }
 690
 691     /* Too many pictures are still referenced, there is probably a bug
 692      * with the decoder */
 693     if( !b_forced )
 694         msg_Err( p_vout, "pictures leaked, resetting the heap" );
 695
 696     /* Just free all the pictures */
 697     for( i_pic = 0; i_pic < p_vout->render.i_pictures; i_pic++ )
 698     {
 699         picture_t *p_pic = p_vout->render.pp_picture[i_pic];
 700
 701         msg_Dbg( p_vout, "[%d] %d %d", i_pic, p_pic->i_status, p_pic->i_refcount );
 702         p_pic->i_refcount = 0;
 703
 704         switch( p_pic->i_status )
 705         {
 706         case READY_PICTURE:
 707         case DISPLAYED_PICTURE:
 708         case RESERVED_PICTURE:
 709             if( p_pic != p_vout->p->p_picture_displayed )
 710                 vout_UsePictureLocked( p_vout, p_pic );
 711             break;
 712         }
 713     }
 714     vlc_cond_signal( &p_vout->p->picture_wait );
 715     vlc_mutex_unlock( &p_vout->picture_lock );
 716 }
 717 void vout_NextPicture( vout_thread_t *p_vout, mtime_t *pi_duration )
 718 {
 719     vlc_mutex_lock( &p_vout->picture_lock );
 720
 721     const mtime_t i_displayed_date = p_vout->p->i_picture_displayed_date;
 722
 723     p_vout->p->b_picture_displayed = false;
 724     p_vout->p->b_picture_empty = false;
 725     if( p_vout->p->p_picture_displayed )
 726     {
 727         p_vout->p->p_picture_displayed->date = 1;
 728         vlc_cond_signal( &p_vout->p->picture_wait );
 729     }
 730
 731     while( !p_vout->p->b_picture_displayed && !p_vout->p->b_picture_empty )
 732         vlc_cond_wait( &p_vout->p->picture_wait, &p_vout->picture_lock );
 733
 734     *pi_duration = __MAX( p_vout->p->i_picture_displayed_date - i_displayed_date, 0 );
 735
 736     /* TODO advance subpicture by the duration ... */
 737
 738     vlc_mutex_unlock( &p_vout->picture_lock );
 739 }
 740
 741 void vout_DisplayTitle( vout_thread_t *p_vout, const char *psz_title )
 742 {
 743     assert( psz_title );
 744
 745     if( !var_InheritBool( p_vout, "osd" ) )
 746         return;
 747
 748     vlc_mutex_lock( &p_vout->change_lock );
 749     free( p_vout->p->psz_title );
 750     p_vout->p->psz_title = strdup( psz_title );
 751     vlc_mutex_unlock( &p_vout->change_lock );
 752 }
 753
 754 spu_t *vout_GetSpu( vout_thread_t *p_vout )
 755 {
 756     return p_vout->p_spu;
 757 }
 758
 759 /*****************************************************************************
 760  * InitThread: initialize video output thread
 761  *****************************************************************************
 762  * This function is called from RunThread and performs the second step of the
 763  * initialization. It returns 0 on success. Note that the thread's flag are not
 764  * modified inside this function.
 765  * XXX You have to enter it with change_lock taken.
 766  *****************************************************************************/
 767 static int ChromaCreate( vout_thread_t *p_vout );
 768 static void ChromaDestroy( vout_thread_t *p_vout );
 769
 770 static bool ChromaIsEqual( const picture_heap_t *p_output, const picture_heap_t *p_render )
 771 {
 772      if( !vout_ChromaCmp( p_output->i_chroma, p_render->i_chroma ) )
 773          return false;
 774
 775      if( p_output->i_chroma != VLC_CODEC_RGB15 &&
 776          p_output->i_chroma != VLC_CODEC_RGB16 &&
 777          p_output->i_chroma != VLC_CODEC_RGB24 &&
 778          p_output->i_chroma != VLC_CODEC_RGB32 )
 779          return true;
 780
 781      return p_output->i_rmask == p_render->i_rmask &&
 782             p_output->i_gmask == p_render->i_gmask &&
 783             p_output->i_bmask == p_render->i_bmask;
 784 }
 785
 786 static int InitThread( vout_thread_t *p_vout )
 787 {
 788     int i;
 789
 790     /* Initialize output method, it allocates direct buffers for us */
 791     if( p_vout->pf_init( p_vout ) )
 792         return VLC_EGENERIC;
 793
 794     p_vout->p->p_picture_displayed = NULL;
 795
 796     if( !I_OUTPUTPICTURES )
 797     {
 798         msg_Err( p_vout, "plugin was unable to allocate at least "
 799                          "one direct buffer" );
 800         p_vout->pf_end( p_vout );
 801         return VLC_EGENERIC;
 802     }
 803
 804     if( I_OUTPUTPICTURES > VOUT_MAX_PICTURES )
 805     {
 806         msg_Err( p_vout, "plugin allocated too many direct buffers, "
 807                          "our internal buffers must have overflown." );
 808         p_vout->pf_end( p_vout );
 809         return VLC_EGENERIC;
 810     }
 811
 812     msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
 813
 814     if( !p_vout->fmt_out.i_width || !p_vout->fmt_out.i_height )
 815     {
 816         p_vout->fmt_out.i_width = p_vout->fmt_out.i_visible_width =
 817             p_vout->output.i_width;
 818         p_vout->fmt_out.i_height = p_vout->fmt_out.i_visible_height =
 819             p_vout->output.i_height;
 820         p_vout->fmt_out.i_x_offset =  p_vout->fmt_out.i_y_offset = 0;
 821
 822         p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
 823     }
 824     if( !p_vout->fmt_out.i_sar_num || !p_vout->fmt_out.i_sar_num )
 825     {
 826         p_vout->fmt_out.i_sar_num = p_vout->output.i_aspect *
 827             p_vout->fmt_out.i_height;
 828         p_vout->fmt_out.i_sar_den = VOUT_ASPECT_FACTOR *
 829             p_vout->fmt_out.i_width;
 830     }
 831
 832     vlc_ureduce( &p_vout->fmt_out.i_sar_num, &p_vout->fmt_out.i_sar_den,
 833                  p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den, 0 );
 834
 835     /* FIXME removed the need of both fmt_* and heap infos */
 836     /* Calculate shifts from system-updated masks */
 837     PictureHeapFixRgb( &p_vout->render );
 838     VideoFormatImportRgb( &p_vout->fmt_render, &p_vout->render );
 839
 840     PictureHeapFixRgb( &p_vout->output );
 841     VideoFormatImportRgb( &p_vout->fmt_out, &p_vout->output );
 842
 843     /* print some usefull debug info about different vout formats
 844      */
 845     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",
 846              p_vout->fmt_render.i_width, p_vout->fmt_render.i_height,
 847              p_vout->fmt_render.i_x_offset, p_vout->fmt_render.i_y_offset,
 848              p_vout->fmt_render.i_visible_width,
 849              p_vout->fmt_render.i_visible_height,
 850              (char*)&p_vout->fmt_render.i_chroma,
 851              p_vout->fmt_render.i_sar_num, p_vout->fmt_render.i_sar_den,
 852              p_vout->fmt_render.i_rmask, p_vout->fmt_render.i_gmask, p_vout->fmt_render.i_bmask );
 853
 854     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",
 855              p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
 856              p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
 857              p_vout->fmt_in.i_visible_width,
 858              p_vout->fmt_in.i_visible_height,
 859              (char*)&p_vout->fmt_in.i_chroma,
 860              p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den,
 861              p_vout->fmt_in.i_rmask, p_vout->fmt_in.i_gmask, p_vout->fmt_in.i_bmask );
 862
 863     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",
 864              p_vout->fmt_out.i_width, p_vout->fmt_out.i_height,
 865              p_vout->fmt_out.i_x_offset, p_vout->fmt_out.i_y_offset,
 866              p_vout->fmt_out.i_visible_width,
 867              p_vout->fmt_out.i_visible_height,
 868              (char*)&p_vout->fmt_out.i_chroma,
 869              p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den,
 870              p_vout->fmt_out.i_rmask, p_vout->fmt_out.i_gmask, p_vout->fmt_out.i_bmask );
 871
 872     /* Check whether we managed to create direct buffers similar to
 873      * the render buffers, ie same size and chroma */
 874     if( ( p_vout->output.i_width == p_vout->render.i_width )
 875      && ( p_vout->output.i_height == p_vout->render.i_height )
 876      && ( ChromaIsEqual( &p_vout->output, &p_vout->render ) ) )
 877     {
 878         /* Cool ! We have direct buffers, we can ask the decoder to
 879          * directly decode into them ! Map the first render buffers to
 880          * the first direct buffers, but keep the first direct buffer
 881          * for memcpy operations */
 882         p_vout->p->b_direct = true;
 883
 884         for( i = 1; i < VOUT_MAX_PICTURES; i++ )
 885         {
 886             if( p_vout->p_picture[ i ].i_type != DIRECT_PICTURE &&
 887                 I_RENDERPICTURES >= VOUT_MIN_DIRECT_PICTURES - 1 &&
 888                 p_vout->p_picture[ i - 1 ].i_type == DIRECT_PICTURE )
 889             {
 890                 /* We have enough direct buffers so there's no need to
 891                  * try to use system memory buffers. */
 892                 break;
 893             }
 894             PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
 895             I_RENDERPICTURES++;
 896         }
 897
 898         msg_Dbg( p_vout, "direct render, mapping "
 899                  "render pictures 0-%i to system pictures 1-%i",
 900                  VOUT_MAX_PICTURES - 2, VOUT_MAX_PICTURES - 1 );
 901     }
 902     else
 903     {
 904         /* Rats... Something is wrong here, we could not find an output
 905          * plugin able to directly render what we decode. See if we can
 906          * find a chroma plugin to do the conversion */
 907         p_vout->p->b_direct = false;
 908
 909         if( ChromaCreate( p_vout ) )
 910         {
 911             p_vout->pf_end( p_vout );
 912             return VLC_EGENERIC;
 913         }
 914
 915         msg_Dbg( p_vout, "indirect render, mapping "
 916                  "render pictures 0-%i to system pictures %i-%i",
 917                  VOUT_MAX_PICTURES - 1, I_OUTPUTPICTURES,
 918                  I_OUTPUTPICTURES + VOUT_MAX_PICTURES - 1 );
 919
 920         /* Append render buffers after the direct buffers */
 921         for( i = I_OUTPUTPICTURES; i < 2 * VOUT_MAX_PICTURES; i++ )
 922         {
 923             PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
 924             I_RENDERPICTURES++;
 925
 926             /* Check if we have enough render pictures */
 927             if( I_RENDERPICTURES == VOUT_MAX_PICTURES )
 928                 break;
 929         }
 930     }
 931
 932     return VLC_SUCCESS;
 933 }
 934
 935 /*****************************************************************************
 936  * RunThread: video output thread
 937  *****************************************************************************
 938  * Video output thread. This function does only returns when the thread is
 939  * terminated. It handles the pictures arriving in the video heap and the
 940  * display device events.
 941  *****************************************************************************/
 942 static void* RunThread( void *p_this )
 943 {
 944     vout_thread_t *p_vout = p_this;
 945     bool            b_has_wrapper;
 946     int             i_idle_loops = 0;  /* loops without displaying a picture */
 947     int             i_picture_qtype_last = QTYPE_NONE;
 948     bool            b_picture_interlaced_last = false;
 949     mtime_t         i_picture_interlaced_last_date;
 950
 951     /*
 952      * Initialize thread
 953      */
 954     b_has_wrapper = !vout_OpenWrapper( p_vout, p_vout->p->psz_module_name );
 955
 956     vlc_mutex_lock( &p_vout->change_lock );
 957
 958     if( b_has_wrapper )
 959         p_vout->b_error = InitThread( p_vout );
 960     else
 961         p_vout->b_error = true;
 962
 963     /* signal the creation of the vout */
 964     p_vout->p->b_ready = true;
 965     vlc_cond_signal( &p_vout->p->change_wait );
 966
 967     if( p_vout->b_error )
 968         goto exit_thread;
 969
 970     /* */
 971     const bool b_drop_late = var_CreateGetBool( p_vout, "drop-late-frames" );
 972     i_picture_interlaced_last_date = mdate();
 973
 974     /*
 975      * Main loop - it is not executed if an error occurred during
 976      * initialization
 977      */
 978     while( !p_vout->p->b_done && !p_vout->b_error )
 979     {
 980         /* Initialize loop variables */
 981         const mtime_t current_date = mdate();
 982         picture_t *p_picture;
 983         picture_t *p_filtered_picture;
 984         mtime_t display_date;
 985         picture_t *p_directbuffer;
 986         int i_index;
 987
 988         if( p_vout->p->b_title_show && p_vout->p->psz_title )
 989             DisplayTitleOnOSD( p_vout );
 990
 991         vlc_mutex_lock( &p_vout->picture_lock );
 992
 993         /* Look for the earliest picture but after the last displayed one */
 994         picture_t *p_last = p_vout->p->p_picture_displayed;;
 995
 996         p_picture = NULL;
 997         for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
 998         {
 999             picture_t *p_pic = PP_RENDERPICTURE[i_index];
1000
1001             if( p_pic->i_status != READY_PICTURE )
1002                 continue;
1003
1004             if( p_vout->p->b_paused && p_last && p_last->date > 1 )
1005                 continue;
1006
1007             if( p_last && p_pic != p_last && p_pic->date <= p_last->date )
1008             {
1009                 /* Drop old picture */
1010                 vout_UsePictureLocked( p_vout, p_pic );
1011             }
1012             else if( !p_vout->p->b_paused && !p_pic->b_force && p_pic != p_last &&
1013                      p_pic->date < current_date + p_vout->p->render_time &&
1014                      b_drop_late )
1015             {
1016                 /* Picture is late: it will be destroyed and the thread
1017                  * will directly choose the next picture */
1018                 vout_UsePictureLocked( p_vout, p_pic );
1019                 vout_statistic_Update( &p_vout->p->statistic, 0, 1 );
1020
1021                 msg_Warn( p_vout, "late picture skipped (%"PRId64" > %d)",
1022                                   current_date - p_pic->date, - p_vout->p->render_time );
1023             }
1024             else if( ( !p_last || p_last->date < p_pic->date ) &&
1025                      ( p_picture == NULL || p_pic->date < p_picture->date ) )
1026             {
1027                 p_picture = p_pic;
1028             }
1029         }
1030         if( !p_picture )
1031         {
1032             p_picture = p_last;
1033
1034             if( !p_vout->p->b_picture_empty )
1035             {
1036                 p_vout->p->b_picture_empty = true;
1037                 vlc_cond_signal( &p_vout->p->picture_wait );
1038             }
1039         }
1040
1041         display_date = 0;
1042         if( p_picture )
1043         {
1044             display_date = p_picture->date;
1045
1046             /* If we found better than the last picture, destroy it */
1047             if( p_last && p_picture != p_last )
1048             {
1049                 vout_UsePictureLocked( p_vout, p_last );
1050                 p_vout->p->p_picture_displayed = p_last = NULL;
1051             }
1052
1053             /* Compute FPS rate */
1054             p_vout->p->p_fps_sample[ p_vout->p->c_fps_samples++ % VOUT_FPS_SAMPLES ] = display_date;
1055
1056             if( !p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
1057             {
1058                 /* A picture is ready to be rendered, but its rendering date
1059                  * is far from the current one so the thread will perform an
1060                  * empty loop as if no picture were found. The picture state
1061                  * is unchanged */
1062                 p_picture    = NULL;
1063                 display_date = 0;
1064             }
1065             else if( p_picture == p_last )
1066             {
1067                 /* We are asked to repeat the previous picture, but we first
1068                  * wait for a couple of idle loops */
1069                 if( i_idle_loops < 4 )
1070                 {
1071                     p_picture    = NULL;
1072                     display_date = 0;
1073                 }
1074                 else
1075                 {
1076                     /* We set the display date to something high, otherwise
1077                      * we'll have lots of problems with late pictures */
1078                     display_date = current_date + p_vout->p->render_time;
1079                 }
1080             }
1081             else if( p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
1082             {
1083                 display_date = current_date + VOUT_DISPLAY_DELAY;
1084             }
1085
1086             if( p_picture )
1087             {
1088                 if( p_picture->date > 1 )
1089                 {
1090                     p_vout->p->i_picture_displayed_date = p_picture->date;
1091                     if( p_picture != p_last && !p_vout->p->b_picture_displayed )
1092                     {
1093                         p_vout->p->b_picture_displayed = true;
1094                         vlc_cond_signal( &p_vout->p->picture_wait );
1095                     }
1096                 }
1097                 p_vout->p->p_picture_displayed = p_picture;
1098             }
1099         }
1100
1101         /* */
1102         const int i_postproc_type = p_vout->p->i_picture_qtype;
1103         const int i_postproc_state = (p_vout->p->i_picture_qtype != QTYPE_NONE) - (i_picture_qtype_last != QTYPE_NONE);
1104
1105         const bool b_picture_interlaced = p_vout->p->b_picture_interlaced;
1106         const int  i_picture_interlaced_state = (!!p_vout->p->b_picture_interlaced) - (!!b_picture_interlaced_last);
1107
1108         vlc_mutex_unlock( &p_vout->picture_lock );
1109
1110         if( p_picture == NULL )
1111             i_idle_loops++;
1112
1113         p_filtered_picture = NULL;
1114         if( p_picture )
1115         {
1116             vlc_mutex_lock( &p_vout->p->vfilter_lock );
1117             p_filtered_picture = filter_chain_VideoFilter( p_vout->p->p_vf2_chain,
1118                                                            p_picture );
1119             vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1120         }
1121
1122         const bool b_snapshot = vout_snapshot_IsRequested( &p_vout->p->snapshot );
1123
1124         /*
1125          * Check for subpictures to display
1126          */
1127         mtime_t spu_render_time;
1128         if( p_vout->p->b_paused )
1129             spu_render_time = p_vout->p->i_pause_date;
1130         else if( p_picture )
1131             spu_render_time = p_picture->date > 1 ? p_picture->date : mdate();
1132         else
1133             spu_render_time = 0;
1134
1135         subpicture_t *p_subpic = spu_SortSubpictures( p_vout->p_spu,
1136                                                       spu_render_time,
1137                                                       b_snapshot );
1138         /*
1139          * Perform rendering
1140          */
1141         vout_statistic_Update( &p_vout->p->statistic, 1, 0 );
1142         p_directbuffer = vout_RenderPicture( p_vout,
1143                                              p_filtered_picture, p_subpic,
1144                                              spu_render_time );
1145
1146         /*
1147          * Take a snapshot if requested
1148          */
1149         if( p_directbuffer && b_snapshot )
1150             vout_snapshot_Set( &p_vout->p->snapshot,
1151                                &p_vout->fmt_out, p_directbuffer );
1152
1153         /*
1154          * Call the plugin-specific rendering method if there is one
1155          */
1156         if( p_filtered_picture != NULL && p_directbuffer != NULL && p_vout->pf_render )
1157         {
1158             /* Render the direct buffer returned by vout_RenderPicture */
1159             p_vout->pf_render( p_vout, p_directbuffer );
1160         }
1161
1162         /*
1163          * Sleep, wake up
1164          */
1165         if( display_date != 0 && p_directbuffer != NULL )
1166         {
1167             mtime_t current_render_time = mdate() - current_date;
1168             /* if render time is very large we don't include it in the mean */
1169             if( current_render_time < p_vout->p->render_time +
1170                 VOUT_DISPLAY_DELAY )
1171             {
1172                 /* Store render time using a sliding mean weighting to
1173                  * current value in a 3 to 1 ratio*/
1174                 p_vout->p->render_time *= 3;
1175                 p_vout->p->render_time += current_render_time;
1176                 p_vout->p->render_time >>= 2;
1177             }
1178             else
1179                 msg_Dbg( p_vout, "skipped big render time %d > %d", (int) current_render_time,
1180                  (int) (p_vout->p->render_time +VOUT_DISPLAY_DELAY ) ) ;
1181         }
1182
1183         /* Give back change lock */
1184         vlc_mutex_unlock( &p_vout->change_lock );
1185
1186         /* Sleep a while or until a given date */
1187         if( display_date != 0 )
1188         {
1189             /* If there are *vout* filters in the chain, better give them the picture
1190              * in advance */
1191             if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
1192             {
1193                 mwait( display_date - VOUT_MWAIT_TOLERANCE );
1194             }
1195         }
1196         else
1197         {
1198             /* Wait until a frame is being sent or a spurious wakeup (not a problem here) */
1199             vlc_mutex_lock( &p_vout->picture_lock );
1200             vlc_cond_timedwait( &p_vout->p->picture_wait, &p_vout->picture_lock, current_date + VOUT_IDLE_SLEEP );
1201             vlc_mutex_unlock( &p_vout->picture_lock );
1202         }
1203
1204         /* On awakening, take back lock and send immediately picture
1205          * to display. */
1206         /* Note: p_vout->p->b_done could be true here and now */
1207         vlc_mutex_lock( &p_vout->change_lock );
1208
1209         /*
1210          * Display the previously rendered picture
1211          */
1212         if( p_filtered_picture != NULL && p_directbuffer != NULL )
1213         {
1214             /* Display the direct buffer returned by vout_RenderPicture */
1215             if( p_vout->pf_display )
1216                 p_vout->pf_display( p_vout, p_directbuffer );
1217
1218             /* Tell the vout this was the last picture and that it does not
1219              * need to be forced anymore. */
1220             p_picture->b_force = false;
1221         }
1222
1223         /* Drop the filtered picture if created by video filters */
1224         if( p_filtered_picture != NULL && p_filtered_picture != p_picture )
1225         {
1226             vlc_mutex_lock( &p_vout->picture_lock );
1227             vout_UsePictureLocked( p_vout, p_filtered_picture );
1228             vlc_mutex_unlock( &p_vout->picture_lock );
1229         }
1230
1231         if( p_picture != NULL )
1232         {
1233             /* Reinitialize idle loop count */
1234             i_idle_loops = 0;
1235         }
1236
1237         /*
1238          * Check events and manage thread
1239          */
1240         if( p_vout->pf_manage && p_vout->pf_manage( p_vout ) )
1241         {
1242             /* A fatal error occurred, and the thread must terminate
1243              * immediately, without displaying anything - setting b_error to 1
1244              * causes the immediate end of the main while() loop. */
1245             // FIXME pf_end
1246             p_vout->b_error = 1;
1247             break;
1248         }
1249
1250         while( p_vout->i_changes & VOUT_ON_TOP_CHANGE )
1251         {
1252             p_vout->i_changes &= ~VOUT_ON_TOP_CHANGE;
1253             vlc_mutex_unlock( &p_vout->change_lock );
1254             vout_Control( p_vout, VOUT_SET_STAY_ON_TOP, p_vout->b_on_top );
1255             vlc_mutex_lock( &p_vout->change_lock );
1256         }
1257
1258         if( p_vout->i_changes & VOUT_SIZE_CHANGE )
1259         {
1260             /* this must only happen when the vout plugin is incapable of
1261              * rescaling the picture itself. In this case we need to destroy
1262              * the current picture buffers and recreate new ones with the right
1263              * dimensions */
1264             int i;
1265
1266             p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
1267
1268             assert( !p_vout->p->b_direct );
1269
1270             ChromaDestroy( p_vout );
1271
1272             vlc_mutex_lock( &p_vout->picture_lock );
1273
1274             p_vout->pf_end( p_vout );
1275
1276             p_vout->p->p_picture_displayed = NULL;
1277             for( i = 0; i < I_OUTPUTPICTURES; i++ )
1278                  p_vout->p_picture[ i ].i_status = FREE_PICTURE;
1279             vlc_cond_signal( &p_vout->p->picture_wait );
1280
1281             I_OUTPUTPICTURES = 0;
1282
1283             if( p_vout->pf_init( p_vout ) )
1284             {
1285                 msg_Err( p_vout, "cannot resize display" );
1286                 /* FIXME: pf_end will be called again in CleanThread()? */
1287                 p_vout->b_error = 1;
1288             }
1289
1290             vlc_mutex_unlock( &p_vout->picture_lock );
1291
1292             /* Need to reinitialise the chroma plugin. Since we might need
1293              * resizing too and it's not sure that we already had it,
1294              * recreate the chroma plugin chain from scratch. */
1295             /* dionoea */
1296             if( ChromaCreate( p_vout ) )
1297             {
1298                 msg_Err( p_vout, "WOW THIS SUCKS BIG TIME!!!!!" );
1299                 p_vout->b_error = 1;
1300             }
1301             if( p_vout->b_error )
1302                 break;
1303         }
1304
1305         if( p_vout->i_changes & VOUT_PICTURE_BUFFERS_CHANGE )
1306         {
1307             /* This happens when the picture buffers need to be recreated.
1308              * This is useful on multimonitor displays for instance.
1309              *
1310              * Warning: This only works when the vout creates only 1 picture
1311              * buffer!! */
1312             p_vout->i_changes &= ~VOUT_PICTURE_BUFFERS_CHANGE;
1313
1314             if( !p_vout->p->b_direct )
1315                 ChromaDestroy( p_vout );
1316
1317             vlc_mutex_lock( &p_vout->picture_lock );
1318
1319             p_vout->pf_end( p_vout );
1320
1321             I_OUTPUTPICTURES = I_RENDERPICTURES = 0;
1322
1323             p_vout->b_error = InitThread( p_vout );
1324             if( p_vout->b_error )
1325                 msg_Err( p_vout, "InitThread after VOUT_PICTURE_BUFFERS_CHANGE failed" );
1326
1327             vlc_cond_signal( &p_vout->p->picture_wait );
1328             vlc_mutex_unlock( &p_vout->picture_lock );
1329
1330             if( p_vout->b_error )
1331                 break;
1332         }
1333
1334         /* Post processing */
1335         if( i_postproc_state == 1 )
1336             PostProcessEnable( p_vout );
1337         else if( i_postproc_state == -1 )
1338             PostProcessDisable( p_vout );
1339         if( i_postproc_state != 0 )
1340             i_picture_qtype_last = i_postproc_type;
1341
1342         /* Deinterlacing
1343          * Wait 30s before quiting interlacing mode */
1344         if( ( i_picture_interlaced_state == 1 ) ||
1345             ( i_picture_interlaced_state == -1 && i_picture_interlaced_last_date + 30000000 < current_date ) )
1346         {
1347             DeinterlaceNeeded( p_vout, b_picture_interlaced );
1348             b_picture_interlaced_last = b_picture_interlaced;
1349         }
1350         if( b_picture_interlaced )
1351             i_picture_interlaced_last_date = current_date;
1352
1353
1354         /* Check for "video filter2" changes */
1355         vlc_mutex_lock( &p_vout->p->vfilter_lock );
1356         if( p_vout->p->psz_vf2 )
1357         {
1358             es_format_t fmt;
1359
1360             es_format_Init( &fmt, VIDEO_ES, p_vout->fmt_render.i_chroma );
1361             fmt.video = p_vout->fmt_render;
1362             filter_chain_Reset( p_vout->p->p_vf2_chain, &fmt, &fmt );
1363
1364             if( filter_chain_AppendFromString( p_vout->p->p_vf2_chain,
1365                                                p_vout->p->psz_vf2 ) < 0 )
1366                 msg_Err( p_vout, "Video filter chain creation failed" );
1367
1368             free( p_vout->p->psz_vf2 );
1369             p_vout->p->psz_vf2 = NULL;
1370
1371             if( i_picture_qtype_last != QTYPE_NONE )
1372                 PostProcessSetFilterQuality( p_vout );
1373         }
1374         vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1375     }
1376
1377     /*
1378      * Error loop - wait until the thread destruction is requested
1379      */
1380     if( p_vout->b_error )
1381         ErrorThread( p_vout );
1382
1383     /* Clean thread */
1384     CleanThread( p_vout );
1385
1386 exit_thread:
1387     /* End of thread */
1388     EndThread( p_vout );
1389     vlc_mutex_unlock( &p_vout->change_lock );
1390
1391     if( b_has_wrapper )
1392         vout_CloseWrapper( p_vout );
1393
1394     return NULL;
1395 }
1396
1397 /*****************************************************************************
1398  * ErrorThread: RunThread() error loop
1399  *****************************************************************************
1400  * This function is called when an error occurred during thread main's loop.
1401  * The thread can still receive feed, but must be ready to terminate as soon
1402  * as possible.
1403  *****************************************************************************/
1404 static void ErrorThread( vout_thread_t *p_vout )
1405 {
1406     /* Wait until a `close' order */
1407     while( !p_vout->p->b_done )
1408         vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
1409 }
1410
1411 /*****************************************************************************
1412  * CleanThread: clean up after InitThread
1413  *****************************************************************************
1414  * This function is called after a sucessful
1415  * initialization. It frees all resources allocated by InitThread.
1416  * XXX You have to enter it with change_lock taken.
1417  *****************************************************************************/
1418 static void CleanThread( vout_thread_t *p_vout )
1419 {
1420     int     i_index;                                        /* index in heap */
1421
1422     if( !p_vout->p->b_direct )
1423         ChromaDestroy( p_vout );
1424
1425     /* Destroy all remaining pictures */
1426     for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++ )
1427     {
1428         if ( p_vout->p_picture[i_index].i_type == MEMORY_PICTURE )
1429         {
1430             free( p_vout->p_picture[i_index].p_data_orig );
1431         }
1432     }
1433
1434     /* Destroy translation tables */
1435     if( !p_vout->b_error )
1436         p_vout->pf_end( p_vout );
1437 }
1438
1439 /*****************************************************************************
1440  * EndThread: thread destruction
1441  *****************************************************************************
1442  * This function is called when the thread ends.
1443  * It frees all resources not allocated by InitThread.
1444  * XXX You have to enter it with change_lock taken.
1445  *****************************************************************************/
1446 static void EndThread( vout_thread_t *p_vout )
1447 {
1448     /* FIXME does that function *really* need to be called inside the thread ? */
1449
1450     /* Detach subpicture unit from both input and vout */
1451     spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), false );
1452     vlc_object_detach( p_vout->p_spu );
1453
1454     /* Destroy the video filters2 */
1455     filter_chain_Delete( p_vout->p->p_vf2_chain );
1456 }
1457
1458 /* Thread helpers */
1459 static picture_t *ChromaGetPicture( filter_t *p_filter )
1460 {
1461     picture_t *p_pic = (picture_t *)p_filter->p_owner;
1462     p_filter->p_owner = NULL;
1463     return p_pic;
1464 }
1465
1466 static int ChromaCreate( vout_thread_t *p_vout )
1467 {
1468     static const char typename[] = "chroma";
1469     filter_t *p_chroma;
1470
1471     /* Choose the best module */
1472     p_chroma = p_vout->p->p_chroma =
1473         vlc_custom_create( p_vout, sizeof(filter_t), VLC_OBJECT_GENERIC,
1474                            typename );
1475
1476     vlc_object_attach( p_chroma, p_vout );
1477
1478     /* TODO: Set the fmt_in and fmt_out stuff here */
1479     p_chroma->fmt_in.video = p_vout->fmt_render;
1480     p_chroma->fmt_out.video = p_vout->fmt_out;
1481     VideoFormatImportRgb( &p_chroma->fmt_in.video, &p_vout->render );
1482     VideoFormatImportRgb( &p_chroma->fmt_out.video, &p_vout->output );
1483
1484     p_chroma->p_module = module_need( p_chroma, "video filter2", NULL, false );
1485
1486     if( p_chroma->p_module == NULL )
1487     {
1488         msg_Err( p_vout, "no chroma module for %4.4s to %4.4s i=%dx%d o=%dx%d",
1489                  (char*)&p_vout->render.i_chroma,
1490                  (char*)&p_vout->output.i_chroma,
1491                  p_chroma->fmt_in.video.i_width, p_chroma->fmt_in.video.i_height,
1492                  p_chroma->fmt_out.video.i_width, p_chroma->fmt_out.video.i_height
1493                  );
1494
1495         vlc_object_release( p_vout->p->p_chroma );
1496         p_vout->p->p_chroma = NULL;
1497
1498         return VLC_EGENERIC;
1499     }
1500     p_chroma->pf_video_buffer_new = ChromaGetPicture;
1501     return VLC_SUCCESS;
1502 }
1503
1504 static void ChromaDestroy( vout_thread_t *p_vout )
1505 {
1506     assert( !p_vout->p->b_direct );
1507
1508     if( !p_vout->p->p_chroma )
1509         return;
1510
1511     module_unneed( p_vout->p->p_chroma, p_vout->p->p_chroma->p_module );
1512     vlc_object_release( p_vout->p->p_chroma );
1513     p_vout->p->p_chroma = NULL;
1514 }
1515
1516 /* following functions are local */
1517
1518 /**
1519  * This function copies all RGB informations from a picture_heap_t into
1520  * a video_format_t
1521  */
1522 static void VideoFormatImportRgb( video_format_t *p_fmt, const picture_heap_t *p_heap )
1523 {
1524     p_fmt->i_rmask = p_heap->i_rmask;
1525     p_fmt->i_gmask = p_heap->i_gmask;
1526     p_fmt->i_bmask = p_heap->i_bmask;
1527     p_fmt->i_rrshift = p_heap->i_rrshift;
1528     p_fmt->i_lrshift = p_heap->i_lrshift;
1529     p_fmt->i_rgshift = p_heap->i_rgshift;
1530     p_fmt->i_lgshift = p_heap->i_lgshift;
1531     p_fmt->i_rbshift = p_heap->i_rbshift;
1532     p_fmt->i_lbshift = p_heap->i_lbshift;
1533 }
1534
1535 /**
1536  * This funtion copes all RGB informations from a video_format_t into
1537  * a picture_heap_t
1538  */
1539 static void VideoFormatExportRgb( const video_format_t *p_fmt, picture_heap_t *p_heap )
1540 {
1541     p_heap->i_rmask = p_fmt->i_rmask;
1542     p_heap->i_gmask = p_fmt->i_gmask;
1543     p_heap->i_bmask = p_fmt->i_bmask;
1544     p_heap->i_rrshift = p_fmt->i_rrshift;
1545     p_heap->i_lrshift = p_fmt->i_lrshift;
1546     p_heap->i_rgshift = p_fmt->i_rgshift;
1547     p_heap->i_lgshift = p_fmt->i_lgshift;
1548     p_heap->i_rbshift = p_fmt->i_rbshift;
1549     p_heap->i_lbshift = p_fmt->i_lbshift;
1550 }
1551
1552 /**
1553  * This function computes rgb shifts from masks
1554  */
1555 static void PictureHeapFixRgb( picture_heap_t *p_heap )
1556 {
1557     video_format_t fmt;
1558
1559     /* */
1560     fmt.i_chroma = p_heap->i_chroma;
1561     VideoFormatImportRgb( &fmt, p_heap );
1562
1563     /* */
1564     video_format_FixRgb( &fmt );
1565
1566     VideoFormatExportRgb( &fmt, p_heap );
1567 }
1568
1569 /*****************************************************************************
1570  * object variables callbacks: a bunch of object variables are used by the
1571  * interfaces to interact with the vout.
1572  *****************************************************************************/
1573 static int FilterCallback( vlc_object_t *p_this, char const *psz_cmd,
1574                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1575 {
1576     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1577     input_thread_t *p_input;
1578     (void)psz_cmd; (void)oldval; (void)p_data;
1579
1580     p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
1581                                                  FIND_PARENT );
1582     if (!p_input)
1583     {
1584         msg_Err( p_vout, "Input not found" );
1585         return VLC_EGENERIC;
1586     }
1587
1588     var_SetBool( p_vout, "intf-change", true );
1589
1590     /* Modify input as well because the vout might have to be restarted */
1591     var_Create( p_input, "vout-filter", VLC_VAR_STRING );
1592     var_SetString( p_input, "vout-filter", newval.psz_string );
1593
1594     /* Now restart current video stream */
1595     input_Control( p_input, INPUT_RESTART_ES, -VIDEO_ES );
1596     vlc_object_release( p_input );
1597
1598     return VLC_SUCCESS;
1599 }
1600
1601 /*****************************************************************************
1602  * Video Filter2 stuff
1603  *****************************************************************************/
1604 static int VideoFilter2Callback( vlc_object_t *p_this, char const *psz_cmd,
1605                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1606 {
1607     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1608     (void)psz_cmd; (void)oldval; (void)p_data;
1609
1610     vlc_mutex_lock( &p_vout->p->vfilter_lock );
1611     p_vout->p->psz_vf2 = strdup( newval.psz_string );
1612     vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1613
1614     return VLC_SUCCESS;
1615 }
1616
1617 /*****************************************************************************
1618  * Post-processing
1619  *****************************************************************************/
1620 static bool PostProcessIsPresent( const char *psz_filter )
1621 {
1622     const char  *psz_pp = "postproc";
1623     const size_t i_pp = strlen(psz_pp);
1624     return psz_filter &&
1625            !strncmp( psz_filter, psz_pp, strlen(psz_pp) ) &&
1626            ( psz_filter[i_pp] == '\0' || psz_filter[i_pp] == ':' );
1627 }
1628
1629 static int PostProcessCallback( vlc_object_t *p_this, char const *psz_cmd,
1630                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1631 {
1632     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1633     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
1634
1635     static const char *psz_pp = "postproc";
1636
1637     char *psz_vf2 = var_GetString( p_vout, "video-filter" );
1638
1639     if( newval.i_int <= 0 )
1640     {
1641         if( PostProcessIsPresent( psz_vf2 ) )
1642         {
1643             strcpy( psz_vf2, &psz_vf2[strlen(psz_pp)] );
1644             if( *psz_vf2 == ':' )
1645                 strcpy( psz_vf2, &psz_vf2[1] );
1646         }
1647     }
1648     else
1649     {
1650         if( !PostProcessIsPresent( psz_vf2 ) )
1651         {
1652             if( psz_vf2 )
1653             {
1654                 char *psz_tmp = psz_vf2;
1655                 if( asprintf( &psz_vf2, "%s:%s", psz_pp, psz_tmp ) < 0 )
1656                     psz_vf2 = psz_tmp;
1657                 else
1658                     free( psz_tmp );
1659             }
1660             else
1661             {
1662                 psz_vf2 = strdup( psz_pp );
1663             }
1664         }
1665     }
1666     if( psz_vf2 )
1667     {
1668         var_SetString( p_vout, "video-filter", psz_vf2 );
1669         free( psz_vf2 );
1670     }
1671
1672     return VLC_SUCCESS;
1673 }
1674 static void PostProcessEnable( vout_thread_t *p_vout )
1675 {
1676     vlc_value_t text;
1677     msg_Dbg( p_vout, "Post-processing available" );
1678     var_Create( p_vout, "postprocess", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
1679     text.psz_string = _("Post processing");
1680     var_Change( p_vout, "postprocess", VLC_VAR_SETTEXT, &text, NULL );
1681
1682     for( int i = 0; i <= 6; i++ )
1683     {
1684         vlc_value_t val;
1685         vlc_value_t text;
1686         char psz_text[1+1];
1687
1688         val.i_int = i;
1689         snprintf( psz_text, sizeof(psz_text), "%d", i );
1690         if( i == 0 )
1691             text.psz_string = _("Disable");
1692         else
1693             text.psz_string = psz_text;
1694         var_Change( p_vout, "postprocess", VLC_VAR_ADDCHOICE, &val, &text );
1695     }
1696     var_AddCallback( p_vout, "postprocess", PostProcessCallback, NULL );
1697
1698     /* */
1699     char *psz_filter = var_GetNonEmptyString( p_vout, "video-filter" );
1700     int i_postproc_q = 0;
1701     if( PostProcessIsPresent( psz_filter ) )
1702         i_postproc_q = var_CreateGetInteger( p_vout, "postproc-q" );
1703
1704     var_SetInteger( p_vout, "postprocess", i_postproc_q );
1705
1706     free( psz_filter );
1707 }
1708 static void PostProcessDisable( vout_thread_t *p_vout )
1709 {
1710     msg_Dbg( p_vout, "Post-processing no more available" );
1711     var_Destroy( p_vout, "postprocess" );
1712 }
1713 static void PostProcessSetFilterQuality( vout_thread_t *p_vout )
1714 {
1715     vlc_object_t *p_pp = vlc_object_find_name( p_vout, "postproc", FIND_CHILD );
1716     if( !p_pp )
1717         return;
1718
1719     var_SetInteger( p_pp, "postproc-q", var_GetInteger( p_vout, "postprocess" ) );
1720     vlc_object_release( p_pp );
1721 }
1722
1723
1724 static void DisplayTitleOnOSD( vout_thread_t *p_vout )
1725 {
1726     const mtime_t i_start = mdate();
1727     const mtime_t i_stop = i_start + INT64_C(1000) * p_vout->p->i_title_timeout;
1728
1729     if( i_stop <= i_start )
1730         return;
1731
1732     vlc_assert_locked( &p_vout->change_lock );
1733
1734     vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN,
1735                            p_vout->p->psz_title, NULL,
1736                            p_vout->p->i_title_position,
1737                            30 + p_vout->fmt_in.i_width
1738                               - p_vout->fmt_in.i_visible_width
1739                               - p_vout->fmt_in.i_x_offset,
1740                            20 + p_vout->fmt_in.i_y_offset,
1741                            i_start, i_stop );
1742
1743     free( p_vout->p->psz_title );
1744
1745     p_vout->p->psz_title = NULL;
1746 }
1747
1748 /*****************************************************************************
1749  * Deinterlacing
1750  *****************************************************************************/
1751 typedef struct
1752 {
1753     const char *psz_mode;
1754     bool       b_vout_filter;
1755 } deinterlace_mode_t;
1756
1757 /* XXX
1758  * You can use the non vout filter if and only if the video properties stay the
1759  * same (width/height/chroma/fps), at least for now.
1760  */
1761 static const deinterlace_mode_t p_deinterlace_mode[] = {
1762     { "",        false },
1763     //{ "discard", true },
1764     { "blend",   false },
1765     //{ "mean",    true  },
1766     //{ "bob",     true },
1767     //{ "linear",  true },
1768     { "x",       false },
1769     //{ "yadif",   true },
1770     //{ "yadif2x", true },
1771     { NULL,      false }
1772 };
1773 static const deinterlace_mode_t *DeinterlaceGetMode( const char *psz_mode )
1774 {
1775     for( const deinterlace_mode_t *p_mode = &p_deinterlace_mode[0]; p_mode->psz_mode; p_mode++ )
1776     {
1777         if( !strcmp( p_mode->psz_mode, psz_mode ) )
1778             return p_mode;
1779     }
1780     return NULL;
1781 }
1782
1783 static char *FilterFind( char *psz_filter_base, const char *psz_module )
1784 {
1785     const size_t i_module = strlen( psz_module );
1786     const char *psz_filter = psz_filter_base;
1787
1788     if( !psz_filter || i_module <= 0 )
1789         return NULL;
1790
1791     for( ;; )
1792     {
1793         char *psz_find = strstr( psz_filter, psz_module );
1794         if( !psz_find )
1795             return NULL;
1796         if( psz_find[i_module] == '\0' || psz_find[i_module] == ':' )
1797             return psz_find;
1798         psz_filter = &psz_find[i_module];
1799     }
1800 }
1801
1802 static bool DeinterlaceIsPresent( vout_thread_t *p_vout, bool b_vout_filter )
1803 {
1804     char *psz_filter = var_GetNonEmptyString( p_vout, b_vout_filter ? "vout-filter" : "video-filter" );
1805
1806     bool b_found = FilterFind( psz_filter, "deinterlace" ) != NULL;
1807
1808     free( psz_filter );
1809
1810     return b_found;
1811 }
1812
1813 static void DeinterlaceRemove( vout_thread_t *p_vout, bool b_vout_filter )
1814 {
1815     const char *psz_variable = b_vout_filter ? "vout-filter" : "video-filter";
1816     char *psz_filter = var_GetNonEmptyString( p_vout, psz_variable );
1817
1818     char *psz = FilterFind( psz_filter, "deinterlace" );
1819     if( !psz )
1820     {
1821         free( psz_filter );
1822         return;
1823     }
1824
1825     /* */
1826     strcpy( &psz[0], &psz[strlen("deinterlace")] );
1827     if( *psz == ':' )
1828         strcpy( &psz[0], &psz[1] );
1829
1830     var_SetString( p_vout, psz_variable, psz_filter );
1831     free( psz_filter );
1832 }
1833 static void DeinterlaceAdd( vout_thread_t *p_vout, bool b_vout_filter )
1834 {
1835     const char *psz_variable = b_vout_filter ? "vout-filter" : "video-filter";
1836
1837     char *psz_filter = var_GetNonEmptyString( p_vout, psz_variable );
1838
1839     if( FilterFind( psz_filter, "deinterlace" ) )
1840     {
1841         free( psz_filter );
1842         return;
1843     }
1844
1845     /* */
1846     if( psz_filter )
1847     {
1848         char *psz_tmp = psz_filter;
1849         if( asprintf( &psz_filter, "%s:%s", psz_tmp, "deinterlace" ) < 0 )
1850             psz_filter = psz_tmp;
1851         else
1852             free( psz_tmp );
1853     }
1854     else
1855     {
1856         psz_filter = strdup( "deinterlace" );
1857     }
1858
1859     if( psz_filter )
1860     {
1861         var_SetString( p_vout, psz_variable, psz_filter );
1862         free( psz_filter );
1863     }
1864 }
1865
1866 static void DeinterlaceSave( vout_thread_t *p_vout, int i_deinterlace, const char *psz_mode, bool is_needed )
1867 {
1868     /* We have to set input variable to ensure restart support
1869      * XXX it is only needed because of vout-filter but must be done
1870      * for non video filter anyway */
1871     vlc_object_t *p_input = vlc_object_find( p_vout, VLC_OBJECT_INPUT, FIND_PARENT );
1872     if( !p_input )
1873         return;
1874
1875     /* Another hack for "vout filter" mode */
1876     if( i_deinterlace < 0 )
1877         i_deinterlace = is_needed ? -2 : -3;
1878
1879     var_Create( p_input, "deinterlace", VLC_VAR_INTEGER );
1880     var_SetInteger( p_input, "deinterlace", i_deinterlace );
1881
1882     static const char * const ppsz_variable[] = {
1883         "deinterlace-mode",
1884         "filter-deinterlace-mode",
1885         "sout-deinterlace-mode",
1886         NULL
1887     };
1888     for( int i = 0; ppsz_variable[i]; i++ )
1889     {
1890         var_Create( p_input, ppsz_variable[i], VLC_VAR_STRING );
1891         var_SetString( p_input, ppsz_variable[i], psz_mode );
1892     }
1893
1894     vlc_object_release( p_input );
1895 }
1896 static int DeinterlaceCallback( vlc_object_t *p_this, char const *psz_cmd,
1897                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1898 {
1899     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(newval); VLC_UNUSED(p_data);
1900     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1901
1902     /* */
1903     const int  i_deinterlace = var_GetInteger( p_this, "deinterlace" );
1904     char       *psz_mode     = var_GetString( p_this, "deinterlace-mode" );
1905     const bool is_needed     = var_GetBool( p_this, "deinterlace-needed" );
1906     if( !psz_mode )
1907         return VLC_EGENERIC;
1908
1909     DeinterlaceSave( p_vout, i_deinterlace, psz_mode, is_needed );
1910
1911     /* */
1912     bool b_vout_filter = false;
1913     const deinterlace_mode_t *p_mode = DeinterlaceGetMode( psz_mode );
1914     if( p_mode )
1915         b_vout_filter = p_mode->b_vout_filter;
1916
1917     /* */
1918     char *psz_old;
1919     if( b_vout_filter )
1920     {
1921         psz_old = var_CreateGetString( p_vout, "filter-deinterlace-mode" );
1922     }
1923     else
1924     {
1925         psz_old = var_CreateGetString( p_vout, "sout-deinterlace-mode" );
1926         var_SetString( p_vout, "sout-deinterlace-mode", psz_mode );
1927     }
1928
1929     msg_Dbg( p_vout, "deinterlace %d, mode %s, is_needed %d", i_deinterlace, psz_mode, is_needed );
1930     if( i_deinterlace == 0 || ( i_deinterlace == -1 && !is_needed ) )
1931     {
1932         DeinterlaceRemove( p_vout, false );
1933         DeinterlaceRemove( p_vout, true );
1934     }
1935     else
1936     {
1937         if( !DeinterlaceIsPresent( p_vout, b_vout_filter ) )
1938         {
1939             DeinterlaceRemove( p_vout, !b_vout_filter );
1940             DeinterlaceAdd( p_vout, b_vout_filter );
1941         }
1942         else
1943         {
1944             /* The deinterlace filter was already inserted but we have changed the mode */
1945             DeinterlaceRemove( p_vout, !b_vout_filter );
1946             if( psz_old && strcmp( psz_old, psz_mode ) )
1947                 var_TriggerCallback( p_vout, b_vout_filter ? "vout-filter" : "video-filter" );
1948         }
1949     }
1950
1951     /* */
1952     free( psz_old );
1953     free( psz_mode );
1954     return VLC_SUCCESS;
1955 }
1956
1957 static void DeinterlaceEnable( vout_thread_t *p_vout )
1958 {
1959     vlc_value_t val, text;
1960
1961     if( !p_vout->p->b_first_vout )
1962         return;
1963
1964     msg_Dbg( p_vout, "Deinterlacing available" );
1965
1966     /* Create the configuration variables */
1967     /* */
1968     var_Create( p_vout, "deinterlace", VLC_VAR_INTEGER | VLC_VAR_DOINHERIT | VLC_VAR_HASCHOICE );
1969     int i_deinterlace = var_GetInteger( p_vout, "deinterlace" );
1970
1971     text.psz_string = _("Deinterlace");
1972     var_Change( p_vout, "deinterlace", VLC_VAR_SETTEXT, &text, NULL );
1973
1974     const module_config_t *p_optd = config_FindConfig( VLC_OBJECT(p_vout), "deinterlace" );
1975     var_Change( p_vout, "deinterlace", VLC_VAR_CLEARCHOICES, NULL, NULL );
1976     for( int i = 0; p_optd && i < p_optd->i_list; i++ )
1977     {
1978         val.i_int  = p_optd->pi_list[i];
1979         text.psz_string = (char*)vlc_gettext(p_optd->ppsz_list_text[i]);
1980         var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
1981     }
1982     var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );
1983     /* */
1984     var_Create( p_vout, "deinterlace-mode", VLC_VAR_STRING | VLC_VAR_DOINHERIT | VLC_VAR_HASCHOICE );
1985     char *psz_deinterlace = var_GetNonEmptyString( p_vout, "deinterlace-mode" );
1986
1987     text.psz_string = _("Deinterlace mode");
1988     var_Change( p_vout, "deinterlace-mode", VLC_VAR_SETTEXT, &text, NULL );
1989
1990     const module_config_t *p_optm = config_FindConfig( VLC_OBJECT(p_vout), "deinterlace-mode" );
1991     var_Change( p_vout, "deinterlace-mode", VLC_VAR_CLEARCHOICES, NULL, NULL );
1992     for( int i = 0; p_optm && i < p_optm->i_list; i++ )
1993     {
1994         if( !DeinterlaceGetMode( p_optm->ppsz_list[i] ) )
1995             continue;
1996
1997         val.psz_string  = p_optm->ppsz_list[i];
1998         text.psz_string = (char*)vlc_gettext(p_optm->ppsz_list_text[i]);
1999         var_Change( p_vout, "deinterlace-mode", VLC_VAR_ADDCHOICE, &val, &text );
2000     }
2001     var_AddCallback( p_vout, "deinterlace-mode", DeinterlaceCallback, NULL );
2002     /* */
2003     var_Create( p_vout, "deinterlace-needed", VLC_VAR_BOOL );
2004     var_AddCallback( p_vout, "deinterlace-needed", DeinterlaceCallback, NULL );
2005
2006     /* Override the initial value from filters if present */
2007     char *psz_filter_mode = NULL;
2008     if( DeinterlaceIsPresent( p_vout, true ) )
2009         psz_filter_mode = var_CreateGetNonEmptyString( p_vout, "filter-deinterlace-mode" );
2010     else if( DeinterlaceIsPresent( p_vout, false ) )
2011         psz_filter_mode = var_CreateGetNonEmptyString( p_vout, "sout-deinterlace-mode" );
2012     if( psz_filter_mode )
2013     {
2014         free( psz_deinterlace );
2015         if( i_deinterlace >= -1 )
2016             i_deinterlace = 1;
2017         psz_deinterlace = psz_filter_mode;
2018     }
2019
2020     /* */
2021     if( i_deinterlace == -2 )
2022         p_vout->p->b_picture_interlaced = true;
2023     else if( i_deinterlace == -3 )
2024         p_vout->p->b_picture_interlaced = false;
2025     if( i_deinterlace < 0 )
2026         i_deinterlace = -1;
2027
2028     /* */
2029     val.psz_string = psz_deinterlace ? psz_deinterlace : p_optm->orig.psz;
2030     var_Change( p_vout, "deinterlace-mode", VLC_VAR_SETVALUE, &val, NULL );
2031     val.b_bool = p_vout->p->b_picture_interlaced;
2032     var_Change( p_vout, "deinterlace-needed", VLC_VAR_SETVALUE, &val, NULL );
2033
2034     var_SetInteger( p_vout, "deinterlace", i_deinterlace );
2035     free( psz_deinterlace );
2036 }
2037
2038 static void DeinterlaceNeeded( vout_thread_t *p_vout, bool is_interlaced )
2039 {
2040     msg_Dbg( p_vout, "Detected %s video",
2041              is_interlaced ? "interlaced" : "progressive" );
2042     var_SetBool( p_vout, "deinterlace-needed", is_interlaced );
2043 }
2044