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
  42 #ifdef HAVE_SYS_TIMES_H
  43 #   include <sys/times.h>
  44 #endif
  45
  46 #include <vlc_vout.h>
  47
  48 #include <vlc_filter.h>
  49 #include <vlc_osd.h>
  50 #include <assert.h>
  51
  52 #if defined( __APPLE__ )
  53 /* Include darwin_specific.h here if needed */
  54 #endif
  55
  56 /** FIXME This is quite ugly but needed while we don't have counters
  57  * helpers */
  58 //#include "input/input_internal.h"
  59
  60 #include <libvlc.h>
  61 #include <vlc_input.h>
  62 #include "vout_pictures.h"
  63 #include "vout_internal.h"
  64
  65 /*****************************************************************************
  66  * Local prototypes
  67  *****************************************************************************/
  68 static int      InitThread        ( vout_thread_t * );
  69 static void*    RunThread         ( void *  );
  70 static void     ErrorThread       ( vout_thread_t * );
  71 static void     CleanThread       ( vout_thread_t * );
  72 static void     EndThread         ( vout_thread_t * );
  73
  74 static void     AspectRatio       ( int, int *, int * );
  75
  76 static void VideoFormatImportRgb( video_format_t *, const picture_heap_t * );
  77 static void PictureHeapFixRgb( picture_heap_t * );
  78
  79 static void     vout_Destructor   ( vlc_object_t * p_this );
  80
  81 /* Object variables callbacks */
  82 static int FilterCallback( vlc_object_t *, char const *,
  83                            vlc_value_t, vlc_value_t, void * );
  84 static int VideoFilter2Callback( vlc_object_t *, char const *,
  85                                  vlc_value_t, vlc_value_t, void * );
  86
  87 /* */
  88 static void PostProcessEnable( vout_thread_t * );
  89 static void PostProcessDisable( vout_thread_t * );
  90 static void PostProcessSetFilterQuality( vout_thread_t *p_vout );
  91 static int  PostProcessCallback( vlc_object_t *, char const *,
  92                                  vlc_value_t, vlc_value_t, void * );
  93 /* */
  94 static void DeinterlaceEnable( vout_thread_t * );
  95
  96 /* From vout_intf.c */
  97 int vout_Snapshot( vout_thread_t *, picture_t * );
  98
  99 /* Display media title in OSD */
 100 static void DisplayTitleOnOSD( vout_thread_t *p_vout );
 101
 102 /* Time during which the thread will sleep if it has nothing to
 103  * display (in micro-seconds) */
 104 #define VOUT_IDLE_SLEEP                 ((int)(0.020*CLOCK_FREQ))
 105
 106 /* Maximum lap of time allowed between the beginning of rendering and
 107  * display. If, compared to the current date, the next image is too
 108  * late, the thread will perform an idle loop. This time should be
 109  * at least VOUT_IDLE_SLEEP plus the time required to render a few
 110  * images, to avoid trashing of decoded images */
 111 #define VOUT_DISPLAY_DELAY              ((int)(0.200*CLOCK_FREQ))
 112
 113 /* Better be in advance when awakening than late... */
 114 #define VOUT_MWAIT_TOLERANCE            ((mtime_t)(0.020*CLOCK_FREQ))
 115
 116 /* Minimum number of direct pictures the video output will accept without
 117  * creating additional pictures in system memory */
 118 #ifdef OPTIMIZE_MEMORY
 119 #   define VOUT_MIN_DIRECT_PICTURES        (VOUT_MAX_PICTURES/2)
 120 #else
 121 #   define VOUT_MIN_DIRECT_PICTURES        (3*VOUT_MAX_PICTURES/4)
 122 #endif
 123
 124 /*****************************************************************************
 125  * Video Filter2 functions
 126  *****************************************************************************/
 127 static picture_t *video_new_buffer_filter( filter_t *p_filter )
 128 {
 129     vout_thread_t *p_vout = (vout_thread_t*)p_filter->p_owner;
 130     picture_t *p_picture = vout_CreatePicture( p_vout, 0, 0, 0 );
 131
 132     p_picture->i_status = READY_PICTURE;
 133
 134     return p_picture;
 135 }
 136
 137 static void video_del_buffer_filter( filter_t *p_filter, picture_t *p_pic )
 138 {
 139     vout_thread_t *p_vout = (vout_thread_t*)p_filter->p_owner;
 140
 141     vlc_mutex_lock( &p_vout->picture_lock );
 142     vout_UsePictureLocked( p_vout, p_pic );
 143     vlc_mutex_unlock( &p_vout->picture_lock );
 144 }
 145
 146 static int video_filter_buffer_allocation_init( filter_t *p_filter, void *p_data )
 147 {
 148     p_filter->pf_vout_buffer_new = video_new_buffer_filter;
 149     p_filter->pf_vout_buffer_del = video_del_buffer_filter;
 150     p_filter->p_owner = p_data; /* p_vout */
 151     return VLC_SUCCESS;
 152 }
 153
 154 /*****************************************************************************
 155  * vout_Request: find a video output thread, create one, or destroy one.
 156  *****************************************************************************
 157  * This function looks for a video output thread matching the current
 158  * properties. If not found, it spawns a new one.
 159  *****************************************************************************/
 160 vout_thread_t *__vout_Request( vlc_object_t *p_this, vout_thread_t *p_vout,
 161                                video_format_t *p_fmt )
 162 {
 163     if( !p_fmt )
 164     {
 165         /* Video output is no longer used.
 166          * TODO: support for reusing video outputs with proper _thread-safe_
 167          * reference handling. */
 168         if( p_vout )
 169             vout_CloseAndRelease( p_vout );
 170         return NULL;
 171     }
 172
 173     /* If a video output was provided, lock it, otherwise look for one. */
 174     if( p_vout )
 175     {
 176         vlc_object_hold( p_vout );
 177     }
 178
 179     /* TODO: find a suitable unused video output */
 180
 181     /* If we now have a video output, check it has the right properties */
 182     if( p_vout )
 183     {
 184         char *psz_filter_chain;
 185         vlc_value_t val;
 186
 187         vlc_mutex_lock( &p_vout->change_lock );
 188
 189         /* We don't directly check for the "vout-filter" variable for obvious
 190          * performance reasons. */
 191         if( p_vout->p->b_filter_change )
 192         {
 193             var_Get( p_vout, "vout-filter", &val );
 194             psz_filter_chain = val.psz_string;
 195
 196             if( psz_filter_chain && !*psz_filter_chain )
 197             {
 198                 free( psz_filter_chain );
 199                 psz_filter_chain = NULL;
 200             }
 201             if( p_vout->p->psz_filter_chain && !*p_vout->p->psz_filter_chain )
 202             {
 203                 free( p_vout->p->psz_filter_chain );
 204                 p_vout->p->psz_filter_chain = NULL;
 205             }
 206
 207             if( !psz_filter_chain && !p_vout->p->psz_filter_chain )
 208             {
 209                 p_vout->p->b_filter_change = false;
 210             }
 211
 212             free( psz_filter_chain );
 213         }
 214
 215         if( p_vout->fmt_render.i_chroma != p_fmt->i_chroma ||
 216             p_vout->fmt_render.i_width != p_fmt->i_width ||
 217             p_vout->fmt_render.i_height != p_fmt->i_height ||
 218             p_vout->p->b_filter_change )
 219         {
 220             vlc_mutex_unlock( &p_vout->change_lock );
 221
 222             /* We are not interested in this format, close this vout */
 223             vout_CloseAndRelease( p_vout );
 224             vlc_object_release( p_vout );
 225             p_vout = NULL;
 226         }
 227         else
 228         {
 229             /* This video output is cool! Hijack it. */
 230             if( p_vout->fmt_render.i_aspect != p_fmt->i_aspect )
 231             {
 232                 /* Correct aspect ratio on change
 233                  * FIXME factorize this code with other aspect ration related code */
 234                 unsigned int i_sar_num;
 235                 unsigned int i_sar_den;
 236                 unsigned int i_aspect;
 237
 238                 i_aspect = p_fmt->i_aspect;
 239                 vlc_ureduce( &i_sar_num, &i_sar_den,
 240                              p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
 241 #if 0
 242                 /* What's that, it does not seems to be used correcly everywhere
 243                  * beside the previous p_vout->fmt_render.i_aspect != p_fmt->i_aspect
 244                  * should be fixed to use it too then */
 245                 if( p_vout->i_par_num > 0 && p_vout->i_par_den > 0 )
 246                 {
 247                     i_sar_num *= p_vout->i_par_den;
 248                     i_sar_den *= p_vout->i_par_num;
 249                     i_aspect = i_aspect * p_vout->i_par_den / p_vout->i_par_num;
 250                 }
 251 #endif
 252
 253                 if( i_sar_num > 0 && i_sar_den > 0 && i_aspect > 0 )
 254                 {
 255                     p_vout->fmt_in.i_sar_num = i_sar_num;
 256                     p_vout->fmt_in.i_sar_den = i_sar_den;
 257                     p_vout->fmt_in.i_aspect  = i_aspect;
 258
 259                     p_vout->fmt_render.i_sar_num = i_sar_num;
 260                     p_vout->fmt_render.i_sar_den = i_sar_den;
 261                     p_vout->fmt_render.i_aspect  = i_aspect;
 262
 263                     p_vout->render.i_aspect   = i_aspect;
 264
 265                     p_vout->i_changes |= VOUT_ASPECT_CHANGE;
 266
 267                 }
 268             }
 269             vlc_mutex_unlock( &p_vout->change_lock );
 270
 271             vlc_object_release( p_vout );
 272         }
 273
 274         if( p_vout )
 275         {
 276             msg_Dbg( p_this, "reusing provided vout" );
 277
 278             spu_Attach( p_vout->p_spu, p_this, true );
 279
 280             vlc_object_detach( p_vout );
 281             vlc_object_attach( p_vout, p_this );
 282         }
 283     }
 284
 285     if( !p_vout )
 286     {
 287         msg_Dbg( p_this, "no usable vout present, spawning one" );
 288
 289         p_vout = vout_Create( p_this, p_fmt );
 290     }
 291
 292     return p_vout;
 293 }
 294
 295 /*****************************************************************************
 296  * vout_Create: creates a new video output thread
 297  *****************************************************************************
 298  * This function creates a new video output thread, and returns a pointer
 299  * to its description. On error, it returns NULL.
 300  *****************************************************************************/
 301 vout_thread_t * __vout_Create( vlc_object_t *p_parent, video_format_t *p_fmt )
 302 {
 303     vout_thread_t  * p_vout;                            /* thread descriptor */
 304     int              i_index;                               /* loop variable */
 305     vlc_value_t      val, text;
 306
 307     unsigned int i_width = p_fmt->i_width;
 308     unsigned int i_height = p_fmt->i_height;
 309     vlc_fourcc_t i_chroma = p_fmt->i_chroma;
 310     unsigned int i_aspect = p_fmt->i_aspect;
 311
 312     config_chain_t *p_cfg;
 313     char *psz_parser;
 314     char *psz_name;
 315
 316     if( i_width <= 0 || i_height <= 0 || i_aspect <= 0 )
 317         return NULL;
 318
 319     vlc_ureduce( &p_fmt->i_sar_num, &p_fmt->i_sar_den,
 320                  p_fmt->i_sar_num, p_fmt->i_sar_den, 50000 );
 321     if( p_fmt->i_sar_num <= 0 || p_fmt->i_sar_den <= 0 )
 322         return NULL;
 323
 324     /* Allocate descriptor */
 325     static const char typename[] = "video output";
 326     p_vout = vlc_custom_create( p_parent, sizeof( *p_vout ), VLC_OBJECT_VOUT,
 327                                 typename );
 328     if( p_vout == NULL )
 329         return NULL;
 330
 331     /* */
 332     p_vout->p = calloc( 1, sizeof(*p_vout->p) );
 333     if( !p_vout->p )
 334     {
 335         vlc_object_release( p_vout );
 336         return NULL;
 337     }
 338
 339     /* Initialize pictures - translation tables and functions
 340      * will be initialized later in InitThread */
 341     for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++)
 342     {
 343         p_vout->p_picture[i_index].pf_lock = NULL;
 344         p_vout->p_picture[i_index].pf_unlock = NULL;
 345         p_vout->p_picture[i_index].i_status = FREE_PICTURE;
 346         p_vout->p_picture[i_index].i_type   = EMPTY_PICTURE;
 347         p_vout->p_picture[i_index].b_slow   = 0;
 348     }
 349
 350     /* No images in the heap */
 351     p_vout->i_heap_size = 0;
 352
 353     /* Initialize the rendering heap */
 354     I_RENDERPICTURES = 0;
 355
 356     p_vout->fmt_render        = *p_fmt;   /* FIXME palette */
 357     p_vout->fmt_in            = *p_fmt;   /* FIXME palette */
 358
 359     p_vout->render.i_width    = i_width;
 360     p_vout->render.i_height   = i_height;
 361     p_vout->render.i_chroma   = i_chroma;
 362     p_vout->render.i_aspect   = i_aspect;
 363
 364     p_vout->render.i_rmask    = p_fmt->i_rmask;
 365     p_vout->render.i_gmask    = p_fmt->i_gmask;
 366     p_vout->render.i_bmask    = p_fmt->i_bmask;
 367
 368     p_vout->render.i_last_used_pic = -1;
 369     p_vout->render.b_allow_modify_pics = 1;
 370
 371     /* Zero the output heap */
 372     I_OUTPUTPICTURES = 0;
 373     p_vout->output.i_width    = 0;
 374     p_vout->output.i_height   = 0;
 375     p_vout->output.i_chroma   = 0;
 376     p_vout->output.i_aspect   = 0;
 377
 378     p_vout->output.i_rmask    = 0;
 379     p_vout->output.i_gmask    = 0;
 380     p_vout->output.i_bmask    = 0;
 381
 382     /* Initialize misc stuff */
 383     p_vout->i_changes    = 0;
 384     p_vout->b_autoscale  = 1;
 385     p_vout->i_zoom      = ZOOM_FP_FACTOR;
 386     p_vout->b_fullscreen = 0;
 387     p_vout->i_alignment  = 0;
 388     p_vout->p->render_time  = 10;
 389     p_vout->p->c_fps_samples = 0;
 390     p_vout->p->i_picture_lost = 0;
 391     p_vout->p->i_picture_displayed = 0;
 392     p_vout->p->b_filter_change = 0;
 393     p_vout->p->b_paused = false;
 394     p_vout->p->i_pause_date = 0;
 395     p_vout->pf_control = NULL;
 396     p_vout->p->i_par_num =
 397     p_vout->p->i_par_den = 1;
 398     p_vout->p->p_picture_displayed = NULL;
 399     p_vout->p->i_picture_displayed_date = 0;
 400     p_vout->p->b_picture_displayed = false;
 401     p_vout->p->b_picture_empty = false;
 402     p_vout->p->i_picture_qtype = QTYPE_NONE;
 403
 404     p_vout->p->snapshot.b_available = true;
 405     p_vout->p->snapshot.i_request = 0;
 406     p_vout->p->snapshot.p_picture = NULL;
 407     vlc_mutex_init( &p_vout->p->snapshot.lock );
 408     vlc_cond_init( &p_vout->p->snapshot.wait );
 409
 410     /* Initialize locks */
 411     vlc_mutex_init( &p_vout->picture_lock );
 412     vlc_cond_init( &p_vout->p->picture_wait );
 413     vlc_mutex_init( &p_vout->change_lock );
 414     vlc_mutex_init( &p_vout->p->vfilter_lock );
 415
 416     /* Mouse coordinates */
 417     var_Create( p_vout, "mouse-x", VLC_VAR_INTEGER );
 418     var_Create( p_vout, "mouse-y", VLC_VAR_INTEGER );
 419     var_Create( p_vout, "mouse-button-down", VLC_VAR_INTEGER );
 420     var_Create( p_vout, "mouse-moved", VLC_VAR_BOOL );
 421     var_Create( p_vout, "mouse-clicked", VLC_VAR_BOOL );
 422
 423     /* Initialize subpicture unit */
 424     p_vout->p_spu = spu_Create( p_vout );
 425     spu_Attach( p_vout->p_spu, p_parent, true );
 426
 427     /* Attach the new object now so we can use var inheritance below */
 428     vlc_object_attach( p_vout, p_parent );
 429
 430     spu_Init( p_vout->p_spu );
 431
 432     /* Take care of some "interface/control" related initialisations */
 433     vout_IntfInit( p_vout );
 434
 435     /* If the parent is not a VOUT object, that means we are at the start of
 436      * the video output pipe */
 437     if( vlc_internals( p_parent )->i_object_type != VLC_OBJECT_VOUT )
 438     {
 439         /* Look for the default filter configuration */
 440         p_vout->p->psz_filter_chain =
 441             var_CreateGetStringCommand( p_vout, "vout-filter" );
 442
 443         /* Apply video filter2 objects on the first vout */
 444         p_vout->p->psz_vf2 =
 445             var_CreateGetStringCommand( p_vout, "video-filter" );
 446     }
 447     else
 448     {
 449         /* continue the parent's filter chain */
 450         char *psz_tmp;
 451
 452         /* Ugly hack to jump to our configuration chain */
 453         p_vout->p->psz_filter_chain
 454             = ((vout_thread_t *)p_parent)->p->psz_filter_chain;
 455         p_vout->p->psz_filter_chain
 456             = config_ChainCreate( &psz_tmp, &p_cfg, p_vout->p->psz_filter_chain );
 457         config_ChainDestroy( p_cfg );
 458         free( psz_tmp );
 459
 460         /* Create a video filter2 var ... but don't inherit values */
 461         var_Create( p_vout, "video-filter",
 462                     VLC_VAR_STRING | VLC_VAR_ISCOMMAND );
 463         p_vout->p->psz_vf2 = var_GetString( p_vout, "video-filter" );
 464     }
 465
 466     var_AddCallback( p_vout, "video-filter", VideoFilter2Callback, NULL );
 467     p_vout->p->p_vf2_chain = filter_chain_New( p_vout, "video filter2",
 468         false, video_filter_buffer_allocation_init, NULL, p_vout );
 469
 470     /* Choose the video output module */
 471     if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
 472     {
 473         var_Create( p_vout, "vout", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 474         var_Get( p_vout, "vout", &val );
 475         psz_parser = val.psz_string;
 476     }
 477     else
 478     {
 479         psz_parser = strdup( p_vout->p->psz_filter_chain );
 480         p_vout->p->b_title_show = false;
 481     }
 482
 483     /* Create the vout thread */
 484     char* psz_tmp = config_ChainCreate( &psz_name, &p_cfg, psz_parser );
 485     free( psz_parser );
 486     free( psz_tmp );
 487     p_vout->p_cfg = p_cfg;
 488     p_vout->p_module = module_need( p_vout,
 489         ( p_vout->p->psz_filter_chain && *p_vout->p->psz_filter_chain ) ?
 490         "video filter" : "video output", psz_name, p_vout->p->psz_filter_chain && *p_vout->p->psz_filter_chain );
 491     free( psz_name );
 492
 493     vlc_object_set_destructor( p_vout, vout_Destructor );
 494
 495     if( p_vout->p_module == NULL )
 496     {
 497         msg_Err( p_vout, "no suitable vout module" );
 498         spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), false );
 499         spu_Destroy( p_vout->p_spu );
 500         p_vout->p_spu = NULL;
 501         vlc_object_release( p_vout );
 502         return NULL;
 503     }
 504
 505     /* Create a few object variables for interface interaction */
 506     var_Create( p_vout, "vout-filter", VLC_VAR_STRING | VLC_VAR_DOINHERIT );
 507     text.psz_string = _("Filters");
 508     var_Change( p_vout, "vout-filter", VLC_VAR_SETTEXT, &text, NULL );
 509     var_AddCallback( p_vout, "vout-filter", FilterCallback, NULL );
 510
 511     /* */
 512     DeinterlaceEnable( p_vout );
 513
 514     /* */
 515     vlc_cond_init( &p_vout->p->change_wait );
 516     if( vlc_clone( &p_vout->p->thread, RunThread, p_vout,
 517                    VLC_THREAD_PRIORITY_OUTPUT ) )
 518     {
 519         module_unneed( p_vout, p_vout->p_module );
 520         p_vout->p_module = NULL;
 521         spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), false );
 522         spu_Destroy( p_vout->p_spu );
 523         p_vout->p_spu = NULL;
 524         vlc_object_release( p_vout );
 525         return NULL;
 526     }
 527
 528     vlc_mutex_lock( &p_vout->change_lock );
 529     while( !p_vout->p->b_ready )
 530     {   /* We are (ab)using the same condition in opposite directions for
 531          * b_ready and b_done. This works because of the strict ordering. */
 532         assert( !p_vout->p->b_done );
 533         vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
 534     }
 535     vlc_mutex_unlock( &p_vout->change_lock );
 536
 537     if( p_vout->b_error )
 538     {
 539         msg_Err( p_vout, "video output creation failed" );
 540         vout_CloseAndRelease( p_vout );
 541         return NULL;
 542     }
 543
 544     return p_vout;
 545 }
 546
 547 /*****************************************************************************
 548  * vout_Close: Close a vout created by vout_Create.
 549  *****************************************************************************
 550  * You HAVE to call it on vout created by vout_Create before vlc_object_release.
 551  * You should NEVER call it on vout not obtained through vout_Create
 552  * (like with vout_Request or vlc_object_find.)
 553  * You can use vout_CloseAndRelease() as a convenience method.
 554  *****************************************************************************/
 555 void vout_Close( vout_thread_t *p_vout )
 556 {
 557     assert( p_vout );
 558
 559     vlc_mutex_lock( &p_vout->change_lock );
 560     p_vout->p->b_done = true;
 561     vlc_cond_signal( &p_vout->p->change_wait );
 562     vlc_mutex_unlock( &p_vout->change_lock );
 563
 564     vlc_mutex_lock( &p_vout->p->snapshot.lock );
 565     p_vout->p->snapshot.b_available = false;
 566     vlc_cond_broadcast( &p_vout->p->snapshot.wait );
 567     vlc_mutex_unlock( &p_vout->p->snapshot.lock );
 568
 569     vlc_join( p_vout->p->thread, NULL );
 570     module_unneed( p_vout, p_vout->p_module );
 571     p_vout->p_module = NULL;
 572 }
 573
 574 /* */
 575 static void vout_Destructor( vlc_object_t * p_this )
 576 {
 577     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 578
 579     /* Make sure the vout was stopped first */
 580     assert( !p_vout->p_module );
 581
 582     /* */
 583     if( p_vout->p_spu )
 584         spu_Destroy( p_vout->p_spu );
 585
 586     /* Destroy the locks */
 587     vlc_cond_destroy( &p_vout->p->change_wait );
 588     vlc_cond_destroy( &p_vout->p->picture_wait );
 589     vlc_mutex_destroy( &p_vout->picture_lock );
 590     vlc_mutex_destroy( &p_vout->change_lock );
 591     vlc_mutex_destroy( &p_vout->p->vfilter_lock );
 592
 593     /* */
 594     for( ;; )
 595     {
 596         picture_t *p_picture = p_vout->p->snapshot.p_picture;
 597         if( !p_picture )
 598             break;
 599
 600         p_vout->p->snapshot.p_picture = p_picture->p_next;
 601
 602         picture_Release( p_picture );
 603     }
 604     vlc_cond_destroy( &p_vout->p->snapshot.wait );
 605     vlc_mutex_destroy( &p_vout->p->snapshot.lock );
 606
 607     /* */
 608     free( p_vout->p->psz_filter_chain );
 609     free( p_vout->p->psz_title );
 610
 611     config_ChainDestroy( p_vout->p_cfg );
 612
 613     free( p_vout->p );
 614
 615 #ifndef __APPLE__
 616     vout_thread_t *p_another_vout;
 617
 618     /* This is a dirty hack mostly for Linux, where there is no way to get the
 619      * GUI back if you closed it while playing video. This is solved in
 620      * Mac OS X, where we have this novelty called menubar, that will always
 621      * allow you access to the applications main functionality. They should try
 622      * that on linux sometime. */
 623     p_another_vout = vlc_object_find( p_this->p_libvlc,
 624                                       VLC_OBJECT_VOUT, FIND_ANYWHERE );
 625     if( p_another_vout == NULL )
 626         var_SetBool( p_this->p_libvlc, "intf-show", true );
 627     else
 628         vlc_object_release( p_another_vout );
 629 #endif
 630 }
 631
 632 /* */
 633 void vout_ChangePause( vout_thread_t *p_vout, bool b_paused, mtime_t i_date )
 634 {
 635     vlc_mutex_lock( &p_vout->change_lock );
 636
 637     assert( !p_vout->p->b_paused || !b_paused );
 638
 639     vlc_mutex_lock( &p_vout->picture_lock );
 640
 641     p_vout->p->i_picture_displayed_date = 0;
 642
 643     if( p_vout->p->b_paused )
 644     {
 645         const mtime_t i_duration = i_date - p_vout->p->i_pause_date;
 646
 647         for( int i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
 648         {
 649             picture_t *p_pic = PP_RENDERPICTURE[i_index];
 650
 651             if( p_pic->i_status == READY_PICTURE )
 652                 p_pic->date += i_duration;
 653         }
 654         vlc_cond_signal( &p_vout->p->picture_wait );
 655         vlc_mutex_unlock( &p_vout->picture_lock );
 656
 657         spu_OffsetSubtitleDate( p_vout->p_spu, i_duration );
 658     }
 659     else
 660     {
 661         vlc_mutex_unlock( &p_vout->picture_lock );
 662     }
 663     p_vout->p->b_paused = b_paused;
 664     p_vout->p->i_pause_date = i_date;
 665
 666     vlc_mutex_unlock( &p_vout->change_lock );
 667 }
 668
 669 void vout_GetResetStatistic( vout_thread_t *p_vout, int *pi_displayed, int *pi_lost )
 670 {
 671     vlc_mutex_lock( &p_vout->change_lock );
 672
 673     *pi_displayed = p_vout->p->i_picture_displayed;
 674     *pi_lost = p_vout->p->i_picture_lost;
 675
 676     p_vout->p->i_picture_displayed = 0;
 677     p_vout->p->i_picture_lost = 0;
 678
 679     vlc_mutex_unlock( &p_vout->change_lock );
 680 }
 681
 682 void vout_Flush( vout_thread_t *p_vout, mtime_t i_date )
 683 {
 684     vlc_mutex_lock( &p_vout->picture_lock );
 685     p_vout->p->i_picture_displayed_date = 0;
 686     for( int i = 0; i < p_vout->render.i_pictures; i++ )
 687     {
 688         picture_t *p_pic = p_vout->render.pp_picture[i];
 689
 690         if( p_pic->i_status == READY_PICTURE ||
 691             p_pic->i_status == DISPLAYED_PICTURE )
 692         {
 693             /* We cannot change picture status if it is in READY_PICTURE state,
 694              * Just make sure they won't be displayed */
 695             if( p_pic->date > i_date )
 696                 p_pic->date = i_date;
 697         }
 698     }
 699     vlc_cond_signal( &p_vout->p->picture_wait );
 700     vlc_mutex_unlock( &p_vout->picture_lock );
 701 }
 702
 703 void vout_FixLeaks( vout_thread_t *p_vout, bool b_forced )
 704 {
 705     int i_pic, i_ready_pic;
 706
 707     vlc_mutex_lock( &p_vout->picture_lock );
 708
 709     for( i_pic = 0, i_ready_pic = 0; i_pic < p_vout->render.i_pictures && !b_forced; i_pic++ )
 710     {
 711         const picture_t *p_pic = p_vout->render.pp_picture[i_pic];
 712
 713         if( p_pic->i_status == READY_PICTURE )
 714         {
 715             i_ready_pic++;
 716             /* If we have at least 2 ready pictures, wait for the vout thread to
 717              * process one */
 718             if( i_ready_pic >= 2 )
 719                 break;
 720
 721             continue;
 722         }
 723
 724         if( p_pic->i_status == DISPLAYED_PICTURE )
 725         {
 726             /* If at least one displayed picture is not referenced
 727              * let vout free it */
 728             if( p_pic->i_refcount == 0 )
 729                 break;
 730         }
 731     }
 732     if( i_pic < p_vout->render.i_pictures && !b_forced )
 733     {
 734         vlc_mutex_unlock( &p_vout->picture_lock );
 735         return;
 736     }
 737
 738     /* Too many pictures are still referenced, there is probably a bug
 739      * with the decoder */
 740     if( !b_forced )
 741         msg_Err( p_vout, "pictures leaked, resetting the heap" );
 742
 743     /* Just free all the pictures */
 744     for( i_pic = 0; i_pic < p_vout->render.i_pictures; i_pic++ )
 745     {
 746         picture_t *p_pic = p_vout->render.pp_picture[i_pic];
 747
 748         msg_Dbg( p_vout, "[%d] %d %d", i_pic, p_pic->i_status, p_pic->i_refcount );
 749         p_pic->i_refcount = 0;
 750
 751         switch( p_pic->i_status )
 752         {
 753         case READY_PICTURE:
 754         case DISPLAYED_PICTURE:
 755         case RESERVED_PICTURE:
 756             if( p_pic != p_vout->p->p_picture_displayed )
 757                 vout_UsePictureLocked( p_vout, p_pic );
 758             break;
 759         }
 760     }
 761     vlc_cond_signal( &p_vout->p->picture_wait );
 762     vlc_mutex_unlock( &p_vout->picture_lock );
 763 }
 764 void vout_NextPicture( vout_thread_t *p_vout, mtime_t *pi_duration )
 765 {
 766     vlc_mutex_lock( &p_vout->picture_lock );
 767
 768     const mtime_t i_displayed_date = p_vout->p->i_picture_displayed_date;
 769
 770     p_vout->p->b_picture_displayed = false;
 771     p_vout->p->b_picture_empty = false;
 772     if( p_vout->p->p_picture_displayed )
 773     {
 774         p_vout->p->p_picture_displayed->date = 1;
 775         vlc_cond_signal( &p_vout->p->picture_wait );
 776     }
 777
 778     while( !p_vout->p->b_picture_displayed && !p_vout->p->b_picture_empty )
 779         vlc_cond_wait( &p_vout->p->picture_wait, &p_vout->picture_lock );
 780
 781     *pi_duration = __MAX( p_vout->p->i_picture_displayed_date - i_displayed_date, 0 );
 782
 783     /* TODO advance subpicture by the duration ... */
 784
 785     vlc_mutex_unlock( &p_vout->picture_lock );
 786 }
 787
 788 void vout_DisplayTitle( vout_thread_t *p_vout, const char *psz_title )
 789 {
 790     assert( psz_title );
 791
 792     if( !config_GetInt( p_vout, "osd" ) )
 793         return;
 794
 795     vlc_mutex_lock( &p_vout->change_lock );
 796     free( p_vout->p->psz_title );
 797     p_vout->p->psz_title = strdup( psz_title );
 798     vlc_mutex_unlock( &p_vout->change_lock );
 799 }
 800
 801 /*****************************************************************************
 802  * InitThread: initialize video output thread
 803  *****************************************************************************
 804  * This function is called from RunThread and performs the second step of the
 805  * initialization. It returns 0 on success. Note that the thread's flag are not
 806  * modified inside this function.
 807  * XXX You have to enter it with change_lock taken.
 808  *****************************************************************************/
 809 static int ChromaCreate( vout_thread_t *p_vout );
 810 static void ChromaDestroy( vout_thread_t *p_vout );
 811
 812 static bool ChromaIsEqual( const picture_heap_t *p_output, const picture_heap_t *p_render )
 813 {
 814      if( !vout_ChromaCmp( p_output->i_chroma, p_render->i_chroma ) )
 815          return false;
 816
 817      if( p_output->i_chroma != FOURCC_RV15 &&
 818          p_output->i_chroma != FOURCC_RV16 &&
 819          p_output->i_chroma != FOURCC_RV24 &&
 820          p_output->i_chroma != FOURCC_RV32 )
 821          return true;
 822
 823      return p_output->i_rmask == p_render->i_rmask &&
 824             p_output->i_gmask == p_render->i_gmask &&
 825             p_output->i_bmask == p_render->i_bmask;
 826 }
 827
 828 static int InitThread( vout_thread_t *p_vout )
 829 {
 830     int i, i_aspect_x, i_aspect_y;
 831
 832     /* Initialize output method, it allocates direct buffers for us */
 833     if( p_vout->pf_init( p_vout ) )
 834         return VLC_EGENERIC;
 835
 836     p_vout->p->p_picture_displayed = NULL;
 837
 838     if( !I_OUTPUTPICTURES )
 839     {
 840         msg_Err( p_vout, "plugin was unable to allocate at least "
 841                          "one direct buffer" );
 842         p_vout->pf_end( p_vout );
 843         return VLC_EGENERIC;
 844     }
 845
 846     if( I_OUTPUTPICTURES > VOUT_MAX_PICTURES )
 847     {
 848         msg_Err( p_vout, "plugin allocated too many direct buffers, "
 849                          "our internal buffers must have overflown." );
 850         p_vout->pf_end( p_vout );
 851         return VLC_EGENERIC;
 852     }
 853
 854     msg_Dbg( p_vout, "got %i direct buffer(s)", I_OUTPUTPICTURES );
 855
 856     AspectRatio( p_vout->fmt_render.i_aspect, &i_aspect_x, &i_aspect_y );
 857
 858     AspectRatio( p_vout->fmt_in.i_aspect, &i_aspect_x, &i_aspect_y );
 859
 860     if( !p_vout->fmt_out.i_width || !p_vout->fmt_out.i_height )
 861     {
 862         p_vout->fmt_out.i_width = p_vout->fmt_out.i_visible_width =
 863             p_vout->output.i_width;
 864         p_vout->fmt_out.i_height = p_vout->fmt_out.i_visible_height =
 865             p_vout->output.i_height;
 866         p_vout->fmt_out.i_x_offset =  p_vout->fmt_out.i_y_offset = 0;
 867
 868         p_vout->fmt_out.i_aspect = p_vout->output.i_aspect;
 869         p_vout->fmt_out.i_chroma = p_vout->output.i_chroma;
 870     }
 871     if( !p_vout->fmt_out.i_sar_num || !p_vout->fmt_out.i_sar_num )
 872     {
 873         p_vout->fmt_out.i_sar_num = p_vout->fmt_out.i_aspect *
 874             p_vout->fmt_out.i_height;
 875         p_vout->fmt_out.i_sar_den = VOUT_ASPECT_FACTOR *
 876             p_vout->fmt_out.i_width;
 877     }
 878
 879     vlc_ureduce( &p_vout->fmt_out.i_sar_num, &p_vout->fmt_out.i_sar_den,
 880                  p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den, 0 );
 881
 882     AspectRatio( p_vout->fmt_out.i_aspect, &i_aspect_x, &i_aspect_y );
 883
 884     /* FIXME removed the need of both fmt_* and heap infos */
 885     /* Calculate shifts from system-updated masks */
 886     PictureHeapFixRgb( &p_vout->render );
 887     VideoFormatImportRgb( &p_vout->fmt_render, &p_vout->render );
 888
 889     PictureHeapFixRgb( &p_vout->output );
 890     VideoFormatImportRgb( &p_vout->fmt_out, &p_vout->output );
 891
 892     /* print some usefull debug info about different vout formats
 893      */
 894     msg_Dbg( p_vout, "pic render sz %ix%i, of (%i,%i), vsz %ix%i, 4cc %4.4s, ar %i:%i, sar %i:%i, msk r0x%x g0x%x b0x%x",
 895              p_vout->fmt_render.i_width, p_vout->fmt_render.i_height,
 896              p_vout->fmt_render.i_x_offset, p_vout->fmt_render.i_y_offset,
 897              p_vout->fmt_render.i_visible_width,
 898              p_vout->fmt_render.i_visible_height,
 899              (char*)&p_vout->fmt_render.i_chroma,
 900              i_aspect_x, i_aspect_y,
 901              p_vout->fmt_render.i_sar_num, p_vout->fmt_render.i_sar_den,
 902              p_vout->fmt_render.i_rmask, p_vout->fmt_render.i_gmask, p_vout->fmt_render.i_bmask );
 903
 904     msg_Dbg( p_vout, "pic in sz %ix%i, of (%i,%i), vsz %ix%i, 4cc %4.4s, ar %i:%i, sar %i:%i, msk r0x%x g0x%x b0x%x",
 905              p_vout->fmt_in.i_width, p_vout->fmt_in.i_height,
 906              p_vout->fmt_in.i_x_offset, p_vout->fmt_in.i_y_offset,
 907              p_vout->fmt_in.i_visible_width,
 908              p_vout->fmt_in.i_visible_height,
 909              (char*)&p_vout->fmt_in.i_chroma,
 910              i_aspect_x, i_aspect_y,
 911              p_vout->fmt_in.i_sar_num, p_vout->fmt_in.i_sar_den,
 912              p_vout->fmt_in.i_rmask, p_vout->fmt_in.i_gmask, p_vout->fmt_in.i_bmask );
 913
 914     msg_Dbg( p_vout, "pic out sz %ix%i, of (%i,%i), vsz %ix%i, 4cc %4.4s, ar %i:%i, sar %i:%i, msk r0x%x g0x%x b0x%x",
 915              p_vout->fmt_out.i_width, p_vout->fmt_out.i_height,
 916              p_vout->fmt_out.i_x_offset, p_vout->fmt_out.i_y_offset,
 917              p_vout->fmt_out.i_visible_width,
 918              p_vout->fmt_out.i_visible_height,
 919              (char*)&p_vout->fmt_out.i_chroma,
 920              i_aspect_x, i_aspect_y,
 921              p_vout->fmt_out.i_sar_num, p_vout->fmt_out.i_sar_den,
 922              p_vout->fmt_out.i_rmask, p_vout->fmt_out.i_gmask, p_vout->fmt_out.i_bmask );
 923
 924     /* Check whether we managed to create direct buffers similar to
 925      * the render buffers, ie same size and chroma */
 926     if( ( p_vout->output.i_width == p_vout->render.i_width )
 927      && ( p_vout->output.i_height == p_vout->render.i_height )
 928      && ( ChromaIsEqual( &p_vout->output, &p_vout->render ) ) )
 929     {
 930         /* Cool ! We have direct buffers, we can ask the decoder to
 931          * directly decode into them ! Map the first render buffers to
 932          * the first direct buffers, but keep the first direct buffer
 933          * for memcpy operations */
 934         p_vout->p->b_direct = true;
 935
 936         for( i = 1; i < VOUT_MAX_PICTURES; i++ )
 937         {
 938             if( p_vout->p_picture[ i ].i_type != DIRECT_PICTURE &&
 939                 I_RENDERPICTURES >= VOUT_MIN_DIRECT_PICTURES - 1 &&
 940                 p_vout->p_picture[ i - 1 ].i_type == DIRECT_PICTURE )
 941             {
 942                 /* We have enough direct buffers so there's no need to
 943                  * try to use system memory buffers. */
 944                 break;
 945             }
 946             PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
 947             I_RENDERPICTURES++;
 948         }
 949
 950         msg_Dbg( p_vout, "direct render, mapping "
 951                  "render pictures 0-%i to system pictures 1-%i",
 952                  VOUT_MAX_PICTURES - 2, VOUT_MAX_PICTURES - 1 );
 953     }
 954     else
 955     {
 956         /* Rats... Something is wrong here, we could not find an output
 957          * plugin able to directly render what we decode. See if we can
 958          * find a chroma plugin to do the conversion */
 959         p_vout->p->b_direct = false;
 960
 961         if( ChromaCreate( p_vout ) )
 962         {
 963             p_vout->pf_end( p_vout );
 964             return VLC_EGENERIC;
 965         }
 966
 967         msg_Dbg( p_vout, "indirect render, mapping "
 968                  "render pictures 0-%i to system pictures %i-%i",
 969                  VOUT_MAX_PICTURES - 1, I_OUTPUTPICTURES,
 970                  I_OUTPUTPICTURES + VOUT_MAX_PICTURES - 1 );
 971
 972         /* Append render buffers after the direct buffers */
 973         for( i = I_OUTPUTPICTURES; i < 2 * VOUT_MAX_PICTURES; i++ )
 974         {
 975             PP_RENDERPICTURE[ I_RENDERPICTURES ] = &p_vout->p_picture[ i ];
 976             I_RENDERPICTURES++;
 977
 978             /* Check if we have enough render pictures */
 979             if( I_RENDERPICTURES == VOUT_MAX_PICTURES )
 980                 break;
 981         }
 982     }
 983
 984     /* Link pictures back to their heap */
 985     for( i = 0 ; i < I_RENDERPICTURES ; i++ )
 986     {
 987         PP_RENDERPICTURE[ i ]->p_heap = &p_vout->render;
 988     }
 989
 990     for( i = 0 ; i < I_OUTPUTPICTURES ; i++ )
 991     {
 992         PP_OUTPUTPICTURE[ i ]->p_heap = &p_vout->output;
 993     }
 994
 995     return VLC_SUCCESS;
 996 }
 997
 998 /*****************************************************************************
 999  * RunThread: video output thread
1000  *****************************************************************************
1001  * Video output thread. This function does only returns when the thread is
1002  * terminated. It handles the pictures arriving in the video heap and the
1003  * display device events.
1004  *****************************************************************************/
1005 static void* RunThread( void *p_this )
1006 {
1007     vout_thread_t *p_vout = p_this;
1008     int             i_idle_loops = 0;  /* loops without displaying a picture */
1009     int             i_picture_qtype_last = QTYPE_NONE;
1010
1011     bool            b_drop_late;
1012
1013     /*
1014      * Initialize thread
1015      */
1016     vlc_mutex_lock( &p_vout->change_lock );
1017     p_vout->b_error = InitThread( p_vout );
1018
1019     b_drop_late = var_CreateGetBool( p_vout, "drop-late-frames" );
1020
1021     /* signal the creation of the vout */
1022     p_vout->p->b_ready = true;
1023     vlc_cond_signal( &p_vout->p->change_wait );
1024
1025     if( p_vout->b_error )
1026     {
1027         EndThread( p_vout );
1028         vlc_mutex_unlock( &p_vout->change_lock );
1029         return NULL;
1030     }
1031
1032     /*
1033      * Main loop - it is not executed if an error occurred during
1034      * initialization
1035      */
1036     while( !p_vout->p->b_done && !p_vout->b_error )
1037     {
1038         /* Initialize loop variables */
1039         const mtime_t current_date = mdate();
1040         picture_t *p_picture;
1041         picture_t *p_filtered_picture;
1042         mtime_t display_date;
1043         picture_t *p_directbuffer;
1044         int i_index;
1045
1046         if( p_vout->p->b_title_show && p_vout->p->psz_title )
1047             DisplayTitleOnOSD( p_vout );
1048
1049         vlc_mutex_lock( &p_vout->picture_lock );
1050
1051         /* Look for the earliest picture but after the last displayed one */
1052         picture_t *p_last = p_vout->p->p_picture_displayed;;
1053
1054         p_picture = NULL;
1055         for( i_index = 0; i_index < I_RENDERPICTURES; i_index++ )
1056         {
1057             picture_t *p_pic = PP_RENDERPICTURE[i_index];
1058
1059             if( p_pic->i_status != READY_PICTURE )
1060                 continue;
1061
1062             if( p_vout->p->b_paused && p_last && p_last->date > 1 )
1063                 continue;
1064
1065             if( p_last && p_pic != p_last && p_pic->date <= p_last->date )
1066             {
1067                 /* Drop old picture */
1068                 vout_UsePictureLocked( p_vout, p_pic );
1069             }
1070             else if( !p_vout->p->b_paused && !p_pic->b_force && p_pic != p_last &&
1071                      p_pic->date < current_date + p_vout->p->render_time &&
1072                      b_drop_late )
1073             {
1074                 /* Picture is late: it will be destroyed and the thread
1075                  * will directly choose the next picture */
1076                 vout_UsePictureLocked( p_vout, p_pic );
1077                 p_vout->p->i_picture_lost++;
1078
1079                 msg_Warn( p_vout, "late picture skipped (%"PRId64" > %d)",
1080                                   current_date - p_pic->date, - p_vout->p->render_time );
1081             }
1082             else if( ( !p_last || p_last->date < p_pic->date ) &&
1083                      ( p_picture == NULL || p_pic->date < p_picture->date ) )
1084             {
1085                 p_picture = p_pic;
1086             }
1087         }
1088         if( !p_picture )
1089         {
1090             p_picture = p_last;
1091
1092             if( !p_vout->p->b_picture_empty )
1093             {
1094                 p_vout->p->b_picture_empty = true;
1095                 vlc_cond_signal( &p_vout->p->picture_wait );
1096             }
1097         }
1098
1099         display_date = 0;
1100         if( p_picture )
1101         {
1102             display_date = p_picture->date;
1103
1104             /* If we found better than the last picture, destroy it */
1105             if( p_last && p_picture != p_last )
1106             {
1107                 vout_UsePictureLocked( p_vout, p_last );
1108                 p_vout->p->p_picture_displayed = p_last = NULL;
1109             }
1110
1111             /* Compute FPS rate */
1112             p_vout->p->p_fps_sample[ p_vout->p->c_fps_samples++ % VOUT_FPS_SAMPLES ] = display_date;
1113
1114             if( !p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
1115             {
1116                 /* A picture is ready to be rendered, but its rendering date
1117                  * is far from the current one so the thread will perform an
1118                  * empty loop as if no picture were found. The picture state
1119                  * is unchanged */
1120                 p_picture    = NULL;
1121                 display_date = 0;
1122             }
1123             else if( p_picture == p_last )
1124             {
1125                 /* We are asked to repeat the previous picture, but we first
1126                  * wait for a couple of idle loops */
1127                 if( i_idle_loops < 4 )
1128                 {
1129                     p_picture    = NULL;
1130                     display_date = 0;
1131                 }
1132                 else
1133                 {
1134                     /* We set the display date to something high, otherwise
1135                      * we'll have lots of problems with late pictures */
1136                     display_date = current_date + p_vout->p->render_time;
1137                 }
1138             }
1139             else if( p_vout->p->b_paused && display_date > current_date + VOUT_DISPLAY_DELAY )
1140             {
1141                 display_date = current_date + VOUT_DISPLAY_DELAY;
1142             }
1143
1144             if( p_picture )
1145             {
1146                 if( p_picture->date > 1 )
1147                 {
1148                     p_vout->p->i_picture_displayed_date = p_picture->date;
1149                     if( p_picture != p_last && !p_vout->p->b_picture_displayed )
1150                     {
1151                         p_vout->p->b_picture_displayed = true;
1152                         vlc_cond_signal( &p_vout->p->picture_wait );
1153                     }
1154                 }
1155                 p_vout->p->p_picture_displayed = p_picture;
1156             }
1157         }
1158
1159         /* */
1160         const int i_postproc_type = p_vout->p->i_picture_qtype;
1161         const int i_postproc_state = (p_vout->p->i_picture_qtype != QTYPE_NONE) - (i_picture_qtype_last != QTYPE_NONE);
1162
1163         vlc_mutex_unlock( &p_vout->picture_lock );
1164
1165         if( p_picture == NULL )
1166             i_idle_loops++;
1167
1168         p_filtered_picture = NULL;
1169         if( p_picture )
1170             p_filtered_picture = filter_chain_VideoFilter( p_vout->p->p_vf2_chain,
1171                                                            p_picture );
1172
1173         bool b_snapshot = false;
1174         if( vlc_mutex_trylock( &p_vout->p->snapshot.lock ) == 0 )
1175         {
1176              b_snapshot = p_vout->p->snapshot.i_request > 0
1177                        && p_picture != NULL;
1178              vlc_mutex_unlock( &p_vout->p->snapshot.lock );
1179         }
1180
1181         /*
1182          * Check for subpictures to display
1183          */
1184         subpicture_t *p_subpic = NULL;
1185         if( display_date > 0 )
1186             p_subpic = spu_SortSubpictures( p_vout->p_spu, display_date,
1187                                             p_vout->p->b_paused, b_snapshot );
1188
1189         /*
1190          * Perform rendering
1191          */
1192         p_vout->p->i_picture_displayed++;
1193         p_directbuffer = vout_RenderPicture( p_vout, p_filtered_picture,
1194                                              p_subpic, p_vout->p->b_paused );
1195
1196         /*
1197          * Take a snapshot if requested
1198          */
1199         if( p_directbuffer && b_snapshot )
1200         {
1201             vlc_mutex_lock( &p_vout->p->snapshot.lock );
1202             assert( p_vout->p->snapshot.i_request > 0 );
1203             while( p_vout->p->snapshot.i_request > 0 )
1204             {
1205                 picture_t *p_pic = picture_New( p_vout->fmt_out.i_chroma,
1206                                                 p_vout->fmt_out.i_width,
1207                                                 p_vout->fmt_out.i_height,
1208                                                 p_vout->fmt_out.i_aspect  );
1209                 if( !p_pic )
1210                     break;
1211
1212                 picture_Copy( p_pic, p_directbuffer );
1213
1214                 p_pic->p_next = p_vout->p->snapshot.p_picture;
1215                 p_vout->p->snapshot.p_picture = p_pic;
1216                 p_vout->p->snapshot.i_request--;
1217             }
1218             vlc_cond_broadcast( &p_vout->p->snapshot.wait );
1219             vlc_mutex_unlock( &p_vout->p->snapshot.lock );
1220         }
1221
1222         /*
1223          * Call the plugin-specific rendering method if there is one
1224          */
1225         if( p_filtered_picture != NULL && p_directbuffer != NULL && p_vout->pf_render )
1226         {
1227             /* Render the direct buffer returned by vout_RenderPicture */
1228             p_vout->pf_render( p_vout, p_directbuffer );
1229         }
1230
1231         /*
1232          * Sleep, wake up
1233          */
1234         if( display_date != 0 && p_directbuffer != NULL )
1235         {
1236             mtime_t current_render_time = mdate() - current_date;
1237             /* if render time is very large we don't include it in the mean */
1238             if( current_render_time < p_vout->p->render_time +
1239                 VOUT_DISPLAY_DELAY )
1240             {
1241                 /* Store render time using a sliding mean weighting to
1242                  * current value in a 3 to 1 ratio*/
1243                 p_vout->p->render_time *= 3;
1244                 p_vout->p->render_time += current_render_time;
1245                 p_vout->p->render_time >>= 2;
1246             }
1247             else
1248                 msg_Dbg( p_vout, "skipped big render time %d > %d", (int) current_render_time,
1249                  (int) (p_vout->p->render_time +VOUT_DISPLAY_DELAY ) ) ;
1250         }
1251
1252         /* Give back change lock */
1253         vlc_mutex_unlock( &p_vout->change_lock );
1254
1255         /* Sleep a while or until a given date */
1256         if( display_date != 0 )
1257         {
1258             /* If there are *vout* filters in the chain, better give them the picture
1259              * in advance */
1260             if( !p_vout->p->psz_filter_chain || !*p_vout->p->psz_filter_chain )
1261             {
1262                 mwait( display_date - VOUT_MWAIT_TOLERANCE );
1263             }
1264         }
1265         else
1266         {
1267             /* Wait until a frame is being sent or a spurious wakeup (not a problem here) */
1268             vlc_mutex_lock( &p_vout->picture_lock );
1269             vlc_cond_timedwait( &p_vout->p->picture_wait, &p_vout->picture_lock, current_date + VOUT_IDLE_SLEEP );
1270             vlc_mutex_unlock( &p_vout->picture_lock );
1271         }
1272
1273         /* On awakening, take back lock and send immediately picture
1274          * to display. */
1275         /* Note: p_vout->p->b_done could be true here and now */
1276         vlc_mutex_lock( &p_vout->change_lock );
1277
1278         /*
1279          * Display the previously rendered picture
1280          */
1281         if( p_filtered_picture != NULL && p_directbuffer != NULL )
1282         {
1283             /* Display the direct buffer returned by vout_RenderPicture */
1284             if( p_vout->pf_display )
1285                 p_vout->pf_display( p_vout, p_directbuffer );
1286
1287             /* Tell the vout this was the last picture and that it does not
1288              * need to be forced anymore. */
1289             p_picture->b_force = false;
1290         }
1291
1292         /* Drop the filtered picture if created by video filters */
1293         if( p_filtered_picture != NULL && p_filtered_picture != p_picture )
1294         {
1295             vlc_mutex_lock( &p_vout->picture_lock );
1296             vout_UsePictureLocked( p_vout, p_filtered_picture );
1297             vlc_mutex_unlock( &p_vout->picture_lock );
1298         }
1299
1300         if( p_picture != NULL )
1301         {
1302             /* Reinitialize idle loop count */
1303             i_idle_loops = 0;
1304         }
1305
1306         /*
1307          * Check events and manage thread
1308          */
1309         if( p_vout->pf_manage && p_vout->pf_manage( p_vout ) )
1310         {
1311             /* A fatal error occurred, and the thread must terminate
1312              * immediately, without displaying anything - setting b_error to 1
1313              * causes the immediate end of the main while() loop. */
1314             // FIXME pf_end
1315             p_vout->b_error = 1;
1316             break;
1317         }
1318
1319         while( p_vout->i_changes & VOUT_ON_TOP_CHANGE )
1320         {
1321             p_vout->i_changes &= ~VOUT_ON_TOP_CHANGE;
1322             vlc_mutex_unlock( &p_vout->change_lock );
1323             vout_Control( p_vout, VOUT_SET_STAY_ON_TOP, p_vout->b_on_top );
1324             vlc_mutex_lock( &p_vout->change_lock );
1325         }
1326
1327         if( p_vout->i_changes & VOUT_SIZE_CHANGE )
1328         {
1329             /* this must only happen when the vout plugin is incapable of
1330              * rescaling the picture itself. In this case we need to destroy
1331              * the current picture buffers and recreate new ones with the right
1332              * dimensions */
1333             int i;
1334
1335             p_vout->i_changes &= ~VOUT_SIZE_CHANGE;
1336
1337             assert( !p_vout->p->b_direct );
1338
1339             ChromaDestroy( p_vout );
1340
1341             vlc_mutex_lock( &p_vout->picture_lock );
1342
1343             p_vout->pf_end( p_vout );
1344
1345             p_vout->p->p_picture_displayed = NULL;
1346             for( i = 0; i < I_OUTPUTPICTURES; i++ )
1347                  p_vout->p_picture[ i ].i_status = FREE_PICTURE;
1348             vlc_cond_signal( &p_vout->p->picture_wait );
1349
1350             I_OUTPUTPICTURES = 0;
1351
1352             if( p_vout->pf_init( p_vout ) )
1353             {
1354                 msg_Err( p_vout, "cannot resize display" );
1355                 /* FIXME: pf_end will be called again in EndThread() */
1356                 p_vout->b_error = 1;
1357             }
1358
1359             vlc_mutex_unlock( &p_vout->picture_lock );
1360
1361             /* Need to reinitialise the chroma plugin. Since we might need
1362              * resizing too and it's not sure that we already had it,
1363              * recreate the chroma plugin chain from scratch. */
1364             /* dionoea */
1365             if( ChromaCreate( p_vout ) )
1366             {
1367                 msg_Err( p_vout, "WOW THIS SUCKS BIG TIME!!!!!" );
1368                 p_vout->b_error = 1;
1369             }
1370             if( p_vout->b_error )
1371                 break;
1372         }
1373
1374         if( p_vout->i_changes & VOUT_PICTURE_BUFFERS_CHANGE )
1375         {
1376             /* This happens when the picture buffers need to be recreated.
1377              * This is useful on multimonitor displays for instance.
1378              *
1379              * Warning: This only works when the vout creates only 1 picture
1380              * buffer!! */
1381             p_vout->i_changes &= ~VOUT_PICTURE_BUFFERS_CHANGE;
1382
1383             if( !p_vout->p->b_direct )
1384                 ChromaDestroy( p_vout );
1385
1386             vlc_mutex_lock( &p_vout->picture_lock );
1387
1388             p_vout->pf_end( p_vout );
1389
1390             I_OUTPUTPICTURES = I_RENDERPICTURES = 0;
1391
1392             p_vout->b_error = InitThread( p_vout );
1393             if( p_vout->b_error )
1394                 msg_Err( p_vout, "InitThread after VOUT_PICTURE_BUFFERS_CHANGE failed" );
1395
1396             vlc_cond_signal( &p_vout->p->picture_wait );
1397             vlc_mutex_unlock( &p_vout->picture_lock );
1398
1399             if( p_vout->b_error )
1400                 break;
1401         }
1402
1403         /* Post processing */
1404         if( i_postproc_state == 1 )
1405             PostProcessEnable( p_vout );
1406         else if( i_postproc_state == -1 )
1407             PostProcessDisable( p_vout );
1408         if( i_postproc_state != 0 )
1409             i_picture_qtype_last = i_postproc_type;
1410
1411         /* Check for "video filter2" changes */
1412         vlc_mutex_lock( &p_vout->p->vfilter_lock );
1413         if( p_vout->p->psz_vf2 )
1414         {
1415             es_format_t fmt;
1416
1417             es_format_Init( &fmt, VIDEO_ES, p_vout->fmt_render.i_chroma );
1418             fmt.video = p_vout->fmt_render;
1419             filter_chain_Reset( p_vout->p->p_vf2_chain, &fmt, &fmt );
1420
1421             if( filter_chain_AppendFromString( p_vout->p->p_vf2_chain,
1422                                                p_vout->p->psz_vf2 ) < 0 )
1423                 msg_Err( p_vout, "Video filter chain creation failed" );
1424
1425             free( p_vout->p->psz_vf2 );
1426             p_vout->p->psz_vf2 = NULL;
1427
1428             if( i_picture_qtype_last != QTYPE_NONE )
1429                 PostProcessSetFilterQuality( p_vout );
1430         }
1431         vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1432     }
1433
1434     /*
1435      * Error loop - wait until the thread destruction is requested
1436      */
1437     if( p_vout->b_error )
1438         ErrorThread( p_vout );
1439
1440     /* End of thread */
1441     CleanThread( p_vout );
1442     EndThread( p_vout );
1443     vlc_mutex_unlock( &p_vout->change_lock );
1444
1445     return NULL;
1446 }
1447
1448 /*****************************************************************************
1449  * ErrorThread: RunThread() error loop
1450  *****************************************************************************
1451  * This function is called when an error occurred during thread main's loop.
1452  * The thread can still receive feed, but must be ready to terminate as soon
1453  * as possible.
1454  *****************************************************************************/
1455 static void ErrorThread( vout_thread_t *p_vout )
1456 {
1457     /* Wait until a `close' order */
1458     while( !p_vout->p->b_done )
1459         vlc_cond_wait( &p_vout->p->change_wait, &p_vout->change_lock );
1460 }
1461
1462 /*****************************************************************************
1463  * CleanThread: clean up after InitThread
1464  *****************************************************************************
1465  * This function is called after a sucessful
1466  * initialization. It frees all resources allocated by InitThread.
1467  * XXX You have to enter it with change_lock taken.
1468  *****************************************************************************/
1469 static void CleanThread( vout_thread_t *p_vout )
1470 {
1471     int     i_index;                                        /* index in heap */
1472
1473     if( !p_vout->p->b_direct )
1474         ChromaDestroy( p_vout );
1475
1476     /* Destroy all remaining pictures */
1477     for( i_index = 0; i_index < 2 * VOUT_MAX_PICTURES + 1; i_index++ )
1478     {
1479         if ( p_vout->p_picture[i_index].i_type == MEMORY_PICTURE )
1480         {
1481             free( p_vout->p_picture[i_index].p_data_orig );
1482         }
1483     }
1484
1485     /* Destroy translation tables */
1486     if( !p_vout->b_error )
1487         p_vout->pf_end( p_vout );
1488 }
1489
1490 /*****************************************************************************
1491  * EndThread: thread destruction
1492  *****************************************************************************
1493  * This function is called when the thread ends.
1494  * It frees all resources not allocated by InitThread.
1495  * XXX You have to enter it with change_lock taken.
1496  *****************************************************************************/
1497 static void EndThread( vout_thread_t *p_vout )
1498 {
1499 #ifdef STATS
1500     {
1501         struct tms cpu_usage;
1502         times( &cpu_usage );
1503
1504         msg_Dbg( p_vout, "cpu usage (user: %d, system: %d)",
1505                  cpu_usage.tms_utime, cpu_usage.tms_stime );
1506     }
1507 #endif
1508
1509     /* FIXME does that function *really* need to be called inside the thread ? */
1510
1511     /* Detach subpicture unit from both input and vout */
1512     spu_Attach( p_vout->p_spu, VLC_OBJECT(p_vout), false );
1513     vlc_object_detach( p_vout->p_spu );
1514
1515     /* Destroy the video filters2 */
1516     filter_chain_Delete( p_vout->p->p_vf2_chain );
1517 }
1518
1519 /* Thread helpers */
1520 static picture_t *ChromaGetPicture( filter_t *p_filter )
1521 {
1522     picture_t *p_pic = (picture_t *)p_filter->p_owner;
1523     p_filter->p_owner = NULL;
1524     return p_pic;
1525 }
1526
1527 static int ChromaCreate( vout_thread_t *p_vout )
1528 {
1529     static const char typename[] = "chroma";
1530     filter_t *p_chroma;
1531
1532     /* Choose the best module */
1533     p_chroma = p_vout->p->p_chroma =
1534         vlc_custom_create( p_vout, sizeof(filter_t), VLC_OBJECT_GENERIC,
1535                            typename );
1536
1537     vlc_object_attach( p_chroma, p_vout );
1538
1539     /* TODO: Set the fmt_in and fmt_out stuff here */
1540     p_chroma->fmt_in.video = p_vout->fmt_render;
1541     p_chroma->fmt_out.video = p_vout->fmt_out;
1542     VideoFormatImportRgb( &p_chroma->fmt_in.video, &p_vout->render );
1543     VideoFormatImportRgb( &p_chroma->fmt_out.video, &p_vout->output );
1544
1545     p_chroma->p_module = module_need( p_chroma, "video filter2", NULL, false );
1546
1547     if( p_chroma->p_module == NULL )
1548     {
1549         msg_Err( p_vout, "no chroma module for %4.4s to %4.4s i=%dx%d o=%dx%d",
1550                  (char*)&p_vout->render.i_chroma,
1551                  (char*)&p_vout->output.i_chroma,
1552                  p_chroma->fmt_in.video.i_width, p_chroma->fmt_in.video.i_height,
1553                  p_chroma->fmt_out.video.i_width, p_chroma->fmt_out.video.i_height
1554                  );
1555
1556         vlc_object_release( p_vout->p->p_chroma );
1557         p_vout->p->p_chroma = NULL;
1558
1559         return VLC_EGENERIC;
1560     }
1561     p_chroma->pf_vout_buffer_new = ChromaGetPicture;
1562     return VLC_SUCCESS;
1563 }
1564
1565 static void ChromaDestroy( vout_thread_t *p_vout )
1566 {
1567     assert( !p_vout->p->b_direct );
1568
1569     if( !p_vout->p->p_chroma )
1570         return;
1571
1572     module_unneed( p_vout->p->p_chroma, p_vout->p->p_chroma->p_module );
1573     vlc_object_release( p_vout->p->p_chroma );
1574     p_vout->p->p_chroma = NULL;
1575 }
1576
1577 /* following functions are local */
1578 static int ReduceHeight( int i_ratio )
1579 {
1580     int i_dummy = VOUT_ASPECT_FACTOR;
1581     int i_pgcd  = 1;
1582
1583     if( !i_ratio )
1584     {
1585         return i_pgcd;
1586     }
1587
1588     /* VOUT_ASPECT_FACTOR is (2^7 * 3^3 * 5^3), we just check for 2, 3 and 5 */
1589     while( !(i_ratio & 1) && !(i_dummy & 1) )
1590     {
1591         i_ratio >>= 1;
1592         i_dummy >>= 1;
1593         i_pgcd  <<= 1;
1594     }
1595
1596     while( !(i_ratio % 3) && !(i_dummy % 3) )
1597     {
1598         i_ratio /= 3;
1599         i_dummy /= 3;
1600         i_pgcd  *= 3;
1601     }
1602
1603     while( !(i_ratio % 5) && !(i_dummy % 5) )
1604     {
1605         i_ratio /= 5;
1606         i_dummy /= 5;
1607         i_pgcd  *= 5;
1608     }
1609
1610     return i_pgcd;
1611 }
1612
1613 static void AspectRatio( int i_aspect, int *i_aspect_x, int *i_aspect_y )
1614 {
1615     unsigned int i_pgcd = ReduceHeight( i_aspect );
1616     *i_aspect_x = i_aspect / i_pgcd;
1617     *i_aspect_y = VOUT_ASPECT_FACTOR / i_pgcd;
1618 }
1619
1620 /**
1621  * This function copies all RGB informations from a picture_heap_t into
1622  * a video_format_t
1623  */
1624 static void VideoFormatImportRgb( video_format_t *p_fmt, const picture_heap_t *p_heap )
1625 {
1626     p_fmt->i_rmask = p_heap->i_rmask;
1627     p_fmt->i_gmask = p_heap->i_gmask;
1628     p_fmt->i_bmask = p_heap->i_bmask;
1629     p_fmt->i_rrshift = p_heap->i_rrshift;
1630     p_fmt->i_lrshift = p_heap->i_lrshift;
1631     p_fmt->i_rgshift = p_heap->i_rgshift;
1632     p_fmt->i_lgshift = p_heap->i_lgshift;
1633     p_fmt->i_rbshift = p_heap->i_rbshift;
1634     p_fmt->i_lbshift = p_heap->i_lbshift;
1635 }
1636
1637 /**
1638  * This funtion copes all RGB informations from a video_format_t into
1639  * a picture_heap_t
1640  */
1641 static void VideoFormatExportRgb( const video_format_t *p_fmt, picture_heap_t *p_heap )
1642 {
1643     p_heap->i_rmask = p_fmt->i_rmask;
1644     p_heap->i_gmask = p_fmt->i_gmask;
1645     p_heap->i_bmask = p_fmt->i_bmask;
1646     p_heap->i_rrshift = p_fmt->i_rrshift;
1647     p_heap->i_lrshift = p_fmt->i_lrshift;
1648     p_heap->i_rgshift = p_fmt->i_rgshift;
1649     p_heap->i_lgshift = p_fmt->i_lgshift;
1650     p_heap->i_rbshift = p_fmt->i_rbshift;
1651     p_heap->i_lbshift = p_fmt->i_lbshift;
1652 }
1653
1654 /**
1655  * This function computes rgb shifts from masks
1656  */
1657 static void PictureHeapFixRgb( picture_heap_t *p_heap )
1658 {
1659     video_format_t fmt;
1660
1661     /* */
1662     fmt.i_chroma = p_heap->i_chroma;
1663     VideoFormatImportRgb( &fmt, p_heap );
1664
1665     /* */
1666     video_format_FixRgb( &fmt );
1667
1668     VideoFormatExportRgb( &fmt, p_heap );
1669 }
1670
1671 /*****************************************************************************
1672  * object variables callbacks: a bunch of object variables are used by the
1673  * interfaces to interact with the vout.
1674  *****************************************************************************/
1675 static int FilterCallback( vlc_object_t *p_this, char const *psz_cmd,
1676                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1677 {
1678     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1679     input_thread_t *p_input;
1680     vlc_value_t val;
1681     (void)psz_cmd; (void)oldval; (void)p_data;
1682
1683     p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
1684                                                  FIND_PARENT );
1685     if (!p_input)
1686     {
1687         msg_Err( p_vout, "Input not found" );
1688         return( VLC_EGENERIC );
1689     }
1690
1691     val.b_bool = true;
1692     var_Set( p_vout, "intf-change", val );
1693
1694     /* Modify input as well because the vout might have to be restarted */
1695     val.psz_string = newval.psz_string;
1696     var_Create( p_input, "vout-filter", VLC_VAR_STRING );
1697
1698     var_Set( p_input, "vout-filter", val );
1699
1700     /* Now restart current video stream */
1701     input_Control( p_input, INPUT_RESTART_ES, -VIDEO_ES );
1702     vlc_object_release( p_input );
1703
1704     return VLC_SUCCESS;
1705 }
1706
1707 /*****************************************************************************
1708  * Video Filter2 stuff
1709  *****************************************************************************/
1710 static int VideoFilter2Callback( vlc_object_t *p_this, char const *psz_cmd,
1711                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1712 {
1713     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1714     (void)psz_cmd; (void)oldval; (void)p_data;
1715
1716     vlc_mutex_lock( &p_vout->p->vfilter_lock );
1717     p_vout->p->psz_vf2 = strdup( newval.psz_string );
1718     vlc_mutex_unlock( &p_vout->p->vfilter_lock );
1719
1720     return VLC_SUCCESS;
1721 }
1722
1723 /*****************************************************************************
1724  * Post-processing
1725  *****************************************************************************/
1726 static bool PostProcessIsPresent( const char *psz_filter )
1727 {
1728      const char  *psz_pp = "postproc";
1729      const size_t i_pp = strlen(psz_pp);
1730     return psz_filter &&
1731            !strncmp( psz_filter, psz_pp, strlen(psz_pp) ) &&
1732            ( psz_filter[i_pp] == '\0' || psz_filter[i_pp] == ':' );
1733 }
1734
1735 static int PostProcessCallback( vlc_object_t *p_this, char const *psz_cmd,
1736                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1737 {
1738     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1739     VLC_UNUSED(psz_cmd); VLC_UNUSED(oldval); VLC_UNUSED(p_data);
1740
1741     static const char *psz_pp = "postproc";
1742
1743     char *psz_vf2 = var_GetString( p_vout, "video-filter" );
1744
1745     if( newval.i_int <= 0 )
1746     {
1747         if( PostProcessIsPresent( psz_vf2 ) )
1748         {
1749             strcpy( psz_vf2, &psz_vf2[strlen(psz_pp)] );
1750             if( *psz_vf2 == ':' )
1751                 strcpy( psz_vf2, &psz_vf2[1] );
1752         }
1753     }
1754     else
1755     {
1756         if( !PostProcessIsPresent( psz_vf2 ) )
1757         {
1758             if( psz_vf2 )
1759             {
1760                 char *psz_tmp = psz_vf2;
1761                 if( asprintf( &psz_vf2, "%s:%s", psz_pp, psz_tmp ) < 0 )
1762                     psz_vf2 = psz_tmp;
1763                 else
1764                     free( psz_tmp );
1765             }
1766             else
1767             {
1768                 psz_vf2 = strdup( psz_pp );
1769             }
1770         }
1771     }
1772     if( psz_vf2 )
1773         var_SetString( p_vout, "video-filter", psz_vf2 );
1774
1775     return VLC_SUCCESS;
1776 }
1777 static void PostProcessEnable( vout_thread_t *p_vout )
1778 {
1779     msg_Dbg( p_vout, "Post-processing available" );
1780     var_Create( p_vout, "postprocess", VLC_VAR_INTEGER | VLC_VAR_HASCHOICE );
1781     for( int i = 0; i <= 6; i++ )
1782     {
1783         vlc_value_t val;
1784         vlc_value_t text;
1785         char psz_text[1+1];
1786
1787         val.i_int = i;
1788         snprintf( psz_text, sizeof(psz_text), "%d", i );
1789         if( i == 0 )
1790             text.psz_string = _("Disable");
1791         else
1792             text.psz_string = psz_text;
1793         var_Change( p_vout, "postprocess", VLC_VAR_ADDCHOICE, &val, &text );
1794     }
1795     var_AddCallback( p_vout, "postprocess", PostProcessCallback, NULL );
1796
1797     /* */
1798     char *psz_filter = var_GetNonEmptyString( p_vout, "video-filter" );
1799     int i_postproc_q = 0;
1800     if( PostProcessIsPresent( psz_filter ) )
1801         i_postproc_q = var_CreateGetInteger( p_vout, "postproc-q" );
1802
1803     var_SetInteger( p_vout, "postprocess", i_postproc_q );
1804
1805     free( psz_filter );
1806 }
1807 static void PostProcessDisable( vout_thread_t *p_vout )
1808 {
1809     msg_Dbg( p_vout, "Post-processing no more available" );
1810     var_Destroy( p_vout, "postprocess" );
1811 }
1812 static void PostProcessSetFilterQuality( vout_thread_t *p_vout )
1813 {
1814     vlc_object_t *p_pp = vlc_object_find_name( p_vout, "postproc", FIND_CHILD );
1815     if( !p_pp )
1816         return;
1817
1818     var_SetInteger( p_pp, "postproc-q", var_GetInteger( p_vout, "postprocess" ) );
1819     vlc_object_release( p_pp );
1820 }
1821
1822
1823 static void DisplayTitleOnOSD( vout_thread_t *p_vout )
1824 {
1825     const mtime_t i_start = mdate();
1826     const mtime_t i_stop = i_start + INT64_C(1000) * p_vout->p->i_title_timeout;
1827
1828     vlc_assert_locked( &p_vout->change_lock );
1829
1830     vout_ShowTextAbsolute( p_vout, DEFAULT_CHAN,
1831                            p_vout->p->psz_title, NULL,
1832                            p_vout->p->i_title_position,
1833                            30 + p_vout->fmt_in.i_width
1834                               - p_vout->fmt_in.i_visible_width
1835                               - p_vout->fmt_in.i_x_offset,
1836                            20 + p_vout->fmt_in.i_y_offset,
1837                            i_start, i_stop );
1838
1839     free( p_vout->p->psz_title );
1840
1841     p_vout->p->psz_title = NULL;
1842 }
1843
1844 /*****************************************************************************
1845  * Deinterlacing
1846  *****************************************************************************/
1847 static int DeinterlaceCallback( vlc_object_t *p_this, char const *psz_cmd,
1848                                 vlc_value_t oldval, vlc_value_t newval, void *p_data )
1849 {
1850     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1851     input_thread_t *p_input;
1852     vlc_value_t val;
1853
1854     char *psz_mode = newval.psz_string;
1855     char *psz_filter, *psz_deinterlace = NULL;
1856     (void)psz_cmd; (void)oldval; (void)p_data;
1857
1858     var_Get( p_vout, "vout-filter", &val );
1859     psz_filter = val.psz_string;
1860     if( psz_filter ) psz_deinterlace = strstr( psz_filter, "deinterlace" );
1861
1862     if( !psz_mode || !*psz_mode )
1863     {
1864         if( psz_deinterlace )
1865         {
1866             char *psz_src = psz_deinterlace + sizeof("deinterlace") - 1;
1867             if( psz_src[0] == ':' ) psz_src++;
1868             memmove( psz_deinterlace, psz_src, strlen(psz_src) + 1 );
1869         }
1870     }
1871     else if( !psz_deinterlace )
1872     {
1873         psz_filter = realloc( psz_filter, strlen( psz_filter ) +
1874                               sizeof(":deinterlace") );
1875         if( psz_filter )
1876         {
1877             if( *psz_filter )
1878                 strcat( psz_filter, ":" );
1879             strcat( psz_filter, "deinterlace" );
1880         }
1881     }
1882
1883     p_input = (input_thread_t *)vlc_object_find( p_this, VLC_OBJECT_INPUT,
1884                                                  FIND_PARENT );
1885     if( !p_input )
1886     {
1887         free( psz_filter );
1888         return VLC_EGENERIC;
1889     }
1890
1891     if( psz_mode && *psz_mode )
1892     {
1893         /* Modify input as well because the vout might have to be restarted */
1894         val.psz_string = psz_mode;
1895         var_Create( p_input, "deinterlace-mode", VLC_VAR_STRING );
1896         var_Set( p_input, "deinterlace-mode", val );
1897     }
1898     vlc_object_release( p_input );
1899
1900     val.b_bool = true;
1901     var_Set( p_vout, "intf-change", val );
1902
1903     val.psz_string = psz_filter;
1904     var_Set( p_vout, "vout-filter", val );
1905     free( psz_filter );
1906
1907     return VLC_SUCCESS;
1908 }
1909
1910 static void DeinterlaceEnable( vout_thread_t *p_vout )
1911 {
1912     static const char *ppsz_choices[][2] = {
1913         { "",           "Disable" },
1914         { "discard",    "Discard" },
1915         { "blend",      "Blend" },
1916         { "mean",       "Mean"  },
1917         { "bob",        "Bob" },
1918         { "linear",     "Linear" },
1919         { "x",          "X" },
1920         { NULL, NULL },
1921     };
1922
1923     vlc_value_t val, text;
1924
1925     msg_Dbg( p_vout, "Deinterlacing available" );
1926
1927     /* Deinterlacing */
1928     var_Create( p_vout, "deinterlace", VLC_VAR_STRING | VLC_VAR_HASCHOICE );
1929     text.psz_string = _("Deinterlace");
1930     var_Change( p_vout, "deinterlace", VLC_VAR_SETTEXT, &text, NULL );
1931
1932     for( int i = 0; ppsz_choices[i][0]; i++ )
1933     {
1934         val.psz_string  = (char*)ppsz_choices[i][0];
1935         text.psz_string = (char*)_(ppsz_choices[i][1]);
1936         var_Change( p_vout, "deinterlace", VLC_VAR_ADDCHOICE, &val, &text );
1937     }
1938
1939     if( var_Get( p_vout, "deinterlace-mode", &val ) == VLC_SUCCESS )
1940     {
1941         var_Set( p_vout, "deinterlace", val );
1942         free( val.psz_string );
1943     }
1944     var_AddCallback( p_vout, "deinterlace", DeinterlaceCallback, NULL );
1945 }
1946