git.sesse.net Git - vlc/blob - modules/video_filter/deinterlace.c

   1 /*****************************************************************************
   2  * deinterlace.c : deinterlacer plugin for vlc
   3  *****************************************************************************
   4  * Copyright (C) 2000, 2001, 2002, 2003 the VideoLAN team
   5  * $Id$
   6  *
   7  * Author: Sam Hocevar <sam@zoy.org>
   8  *
   9  * This program is free software; you can redistribute it and/or modify
  10  * it under the terms of the GNU General Public License as published by
  11  * the Free Software Foundation; either version 2 of the License, or
  12  * (at your option) any later version.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  22  *****************************************************************************/
  23
  24 /*****************************************************************************
  25  * Preamble
  26  *****************************************************************************/
  27
  28 #ifdef HAVE_CONFIG_H
  29 # include "config.h"
  30 #endif
  31
  32 #include <errno.h>
  33
  34 #ifdef HAVE_ALTIVEC_H
  35 #   include <altivec.h>
  36 #endif
  37
  38 #include <vlc_common.h>
  39 #include <vlc_plugin.h>
  40 #include <vlc_vout.h>
  41 #include <vlc_sout.h>
  42 #include "vlc_filter.h"
  43
  44 #ifdef CAN_COMPILE_MMXEXT
  45 #   include "mmx.h"
  46 #endif
  47
  48 #include "filter_common.h"
  49
  50 #define DEINTERLACE_DISCARD 1
  51 #define DEINTERLACE_MEAN    2
  52 #define DEINTERLACE_BLEND   3
  53 #define DEINTERLACE_BOB     4
  54 #define DEINTERLACE_LINEAR  5
  55 #define DEINTERLACE_X       6
  56
  57 /*****************************************************************************
  58  * Local protypes
  59  *****************************************************************************/
  60 static int  Create    ( vlc_object_t * );
  61 static void Destroy   ( vlc_object_t * );
  62
  63 static int  Init      ( vout_thread_t * );
  64 static void End       ( vout_thread_t * );
  65 static void Render    ( vout_thread_t *, picture_t * );
  66
  67 static void RenderDiscard( vout_thread_t *, picture_t *, picture_t *, int );
  68 static void RenderBob    ( vout_thread_t *, picture_t *, picture_t *, int );
  69 static void RenderMean   ( vout_thread_t *, picture_t *, picture_t * );
  70 static void RenderBlend  ( vout_thread_t *, picture_t *, picture_t * );
  71 static void RenderLinear ( vout_thread_t *, picture_t *, picture_t *, int );
  72 static void RenderX      ( picture_t *, picture_t * );
  73
  74 static void MergeGeneric ( void *, const void *, const void *, size_t );
  75 #if defined(CAN_COMPILE_C_ALTIVEC)
  76 static void MergeAltivec ( void *, const void *, const void *, size_t );
  77 #endif
  78 #if defined(CAN_COMPILE_MMXEXT)
  79 static void MergeMMXEXT  ( void *, const void *, const void *, size_t );
  80 #endif
  81 #if defined(CAN_COMPILE_3DNOW)
  82 static void Merge3DNow   ( void *, const void *, const void *, size_t );
  83 #endif
  84 #if defined(CAN_COMPILE_SSE)
  85 static void MergeSSE2    ( void *, const void *, const void *, size_t );
  86 #endif
  87 #if defined(CAN_COMPILE_MMXEXT) || defined(CAN_COMPILE_SSE)
  88 static void EndMMX       ( void );
  89 #endif
  90 #if defined(CAN_COMPILE_3DNOW)
  91 static void End3DNow     ( void );
  92 #endif
  93
  94 static int  SendEvents   ( vlc_object_t *, char const *,
  95                            vlc_value_t, vlc_value_t, void * );
  96
  97 static void SetFilterMethod( vout_thread_t *p_vout, char *psz_method );
  98 static vout_thread_t *SpawnRealVout( vout_thread_t *p_vout );
  99
 100 static int OpenFilter( vlc_object_t *p_this );
 101 static void CloseFilter( vlc_object_t *p_this );
 102
 103 /*****************************************************************************
 104  * Callback prototypes
 105  *****************************************************************************/
 106 static int FilterCallback( vlc_object_t *, char const *,
 107                            vlc_value_t, vlc_value_t, void * );
 108
 109 /*****************************************************************************
 110  * Module descriptor
 111  *****************************************************************************/
 112 #define MODE_TEXT N_("Deinterlace mode")
 113 #define MODE_LONGTEXT N_("Deinterlace method to use for local playback.")
 114
 115 #define SOUT_MODE_TEXT N_("Streaming deinterlace mode")
 116 #define SOUT_MODE_LONGTEXT N_("Deinterlace method to use for streaming.")
 117
 118 #define FILTER_CFG_PREFIX "sout-deinterlace-"
 119
 120 static const char *const mode_list[] = {
 121     "discard", "blend", "mean", "bob", "linear", "x" };
 122 static const char *const mode_list_text[] = {
 123     N_("Discard"), N_("Blend"), N_("Mean"), N_("Bob"), N_("Linear"), "X" };
 124
 125 vlc_module_begin ()
 126     set_description( N_("Deinterlacing video filter") )
 127     set_shortname( N_("Deinterlace" ))
 128     set_capability( "video filter", 0 )
 129     set_category( CAT_VIDEO )
 130     set_subcategory( SUBCAT_VIDEO_VFILTER )
 131
 132     set_section( N_("Display"),NULL)
 133     add_string( "deinterlace-mode", "discard", NULL, MODE_TEXT,
 134                 MODE_LONGTEXT, false )
 135         change_string_list( mode_list, mode_list_text, 0 )
 136
 137     add_shortcut( "deinterlace" )
 138     set_callbacks( Create, Destroy )
 139
 140     add_submodule ()
 141     set_capability( "video filter2", 0 )
 142     set_section( N_("Streaming"),NULL)
 143     add_string( FILTER_CFG_PREFIX "mode", "blend", NULL, SOUT_MODE_TEXT,
 144                 SOUT_MODE_LONGTEXT, false )
 145         change_string_list( mode_list, mode_list_text, 0 )
 146     set_callbacks( OpenFilter, CloseFilter )
 147 vlc_module_end ()
 148
 149 static const char *const ppsz_filter_options[] = {
 150     "mode", NULL
 151 };
 152
 153 /*****************************************************************************
 154  * vout_sys_t: Deinterlace video output method descriptor
 155  *****************************************************************************
 156  * This structure is part of the video output thread descriptor.
 157  * It describes the Deinterlace specific properties of an output thread.
 158  *****************************************************************************/
 159 struct vout_sys_t
 160 {
 161     int        i_mode;        /* Deinterlace mode */
 162     bool b_double_rate; /* Shall we double the framerate? */
 163     bool b_half_height; /* Shall be devide the height by 2 */
 164
 165     mtime_t    last_date;
 166     mtime_t    next_date;
 167
 168     vout_thread_t *p_vout;
 169
 170     vlc_mutex_t filter_lock;
 171
 172     void (*pf_merge) ( void *, const void *, const void *, size_t );
 173     void (*pf_end_merge) ( void );
 174 };
 175
 176 /*****************************************************************************
 177  * Control: control facility for the vout (forwards to child vout)
 178  *****************************************************************************/
 179 static int Control( vout_thread_t *p_vout, int i_query, va_list args )
 180 {
 181     return vout_vaControl( p_vout->p_sys->p_vout, i_query, args );
 182 }
 183
 184 /*****************************************************************************
 185  * Create: allocates Deinterlace video thread output method
 186  *****************************************************************************
 187  * This function allocates and initializes a Deinterlace vout method.
 188  *****************************************************************************/
 189 static int Create( vlc_object_t *p_this )
 190 {
 191     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 192     vlc_value_t val;
 193
 194     /* Allocate structure */
 195     p_vout->p_sys = malloc( sizeof( vout_sys_t ) );
 196     if( p_vout->p_sys == NULL )
 197         return VLC_ENOMEM;
 198
 199     p_vout->pf_init = Init;
 200     p_vout->pf_end = End;
 201     p_vout->pf_manage = NULL;
 202     p_vout->pf_render = Render;
 203     p_vout->pf_display = NULL;
 204     p_vout->pf_control = Control;
 205
 206     p_vout->p_sys->i_mode = DEINTERLACE_DISCARD;
 207     p_vout->p_sys->b_double_rate = false;
 208     p_vout->p_sys->b_half_height = true;
 209     p_vout->p_sys->last_date = 0;
 210     p_vout->p_sys->p_vout = 0;
 211     vlc_mutex_init( &p_vout->p_sys->filter_lock );
 212
 213 #if defined(CAN_COMPILE_C_ALTIVEC)
 214     if( vlc_CPU() & CPU_CAPABILITY_ALTIVEC )
 215     {
 216         p_vout->p_sys->pf_merge = MergeAltivec;
 217         p_vout->p_sys->pf_end_merge = NULL;
 218     }
 219     else
 220 #endif
 221 #if defined(CAN_COMPILE_SSE)
 222     if( vlc_CPU() & CPU_CAPABILITY_SSE2 )
 223     {
 224         p_vout->p_sys->pf_merge = MergeSSE2;
 225         p_vout->p_sys->pf_end_merge = EndMMX;
 226     }
 227     else
 228 #endif
 229 #if defined(CAN_COMPILE_MMXEXT)
 230     if( vlc_CPU() & CPU_CAPABILITY_MMXEXT )
 231     {
 232         p_vout->p_sys->pf_merge = MergeMMXEXT;
 233         p_vout->p_sys->pf_end_merge = EndMMX;
 234     }
 235     else
 236 #endif
 237 #if defined(CAN_COMPILE_3DNOW)
 238     if( vlc_CPU() & CPU_CAPABILITY_3DNOW )
 239     {
 240         p_vout->p_sys->pf_merge = Merge3DNow;
 241         p_vout->p_sys->pf_end_merge = End3DNow;
 242     }
 243     else
 244 #endif
 245     {
 246         p_vout->p_sys->pf_merge = MergeGeneric;
 247         p_vout->p_sys->pf_end_merge = NULL;
 248     }
 249
 250     /* Look what method was requested */
 251     var_Create( p_vout, "deinterlace-mode", VLC_VAR_STRING );
 252     var_Change( p_vout, "deinterlace-mode", VLC_VAR_INHERITVALUE, &val, NULL );
 253
 254     if( val.psz_string == NULL )
 255     {
 256         msg_Err( p_vout, "configuration variable deinterlace-mode empty" );
 257         msg_Err( p_vout, "no deinterlace mode provided, using \"discard\"" );
 258
 259         val.psz_string = strdup( "discard" );
 260     }
 261
 262     msg_Dbg( p_vout, "using %s deinterlace mode", val.psz_string );
 263
 264     SetFilterMethod( p_vout, val.psz_string );
 265
 266     free( val.psz_string );
 267
 268     return VLC_SUCCESS;
 269 }
 270
 271 /*****************************************************************************
 272  * SetFilterMethod: setup the deinterlace method to use.
 273  *****************************************************************************/
 274 static void SetFilterMethod( vout_thread_t *p_vout, char *psz_method )
 275 {
 276     if( !strcmp( psz_method, "mean" ) )
 277     {
 278         p_vout->p_sys->i_mode = DEINTERLACE_MEAN;
 279         p_vout->p_sys->b_double_rate = false;
 280         p_vout->p_sys->b_half_height = true;
 281     }
 282     else if( !strcmp( psz_method, "blend" )
 283              || !strcmp( psz_method, "average" )
 284              || !strcmp( psz_method, "combine-fields" ) )
 285     {
 286         p_vout->p_sys->i_mode = DEINTERLACE_BLEND;
 287         p_vout->p_sys->b_double_rate = false;
 288         p_vout->p_sys->b_half_height = false;
 289     }
 290     else if( !strcmp( psz_method, "bob" )
 291              || !strcmp( psz_method, "progressive-scan" ) )
 292     {
 293         p_vout->p_sys->i_mode = DEINTERLACE_BOB;
 294         p_vout->p_sys->b_double_rate = true;
 295         p_vout->p_sys->b_half_height = false;
 296     }
 297     else if( !strcmp( psz_method, "linear" ) )
 298     {
 299         p_vout->p_sys->i_mode = DEINTERLACE_LINEAR;
 300         p_vout->p_sys->b_double_rate = true;
 301         p_vout->p_sys->b_half_height = false;
 302     }
 303     else if( !strcmp( psz_method, "x" ) )
 304     {
 305         p_vout->p_sys->i_mode = DEINTERLACE_X;
 306         p_vout->p_sys->b_double_rate = false;
 307         p_vout->p_sys->b_half_height = false;
 308     }
 309     else
 310     {
 311         const bool b_i422 = p_vout->render.i_chroma == VLC_FOURCC('I','4','2','2');
 312         if( strcmp( psz_method, "discard" ) )
 313             msg_Err( p_vout, "no valid deinterlace mode provided, "
 314                      "using \"discard\"" );
 315
 316         p_vout->p_sys->i_mode = DEINTERLACE_DISCARD;
 317         p_vout->p_sys->b_double_rate = false;
 318         p_vout->p_sys->b_half_height = !b_i422;
 319     }
 320
 321     msg_Dbg( p_vout, "using %s deinterlace method", psz_method );
 322 }
 323
 324 static void GetOutputFormat( vout_thread_t *p_vout,
 325                              video_format_t *p_dst, const video_format_t *p_src )
 326 {
 327     *p_dst = *p_src;
 328
 329     if( p_vout->p_sys->b_half_height )
 330     {
 331         p_dst->i_height /= 2;
 332         p_dst->i_visible_height /= 2;
 333         p_dst->i_y_offset /= 2;
 334         p_dst->i_sar_den *= 2;
 335     }
 336
 337     if( p_src->i_chroma == VLC_FOURCC('I','4','2','2') )
 338     {
 339         switch( p_vout->p_sys->i_mode )
 340         {
 341         case DEINTERLACE_MEAN:
 342         case DEINTERLACE_LINEAR:
 343         case DEINTERLACE_X:
 344             p_dst->i_chroma = VLC_FOURCC('I','4','2','2');
 345             break;
 346         default:
 347             p_dst->i_chroma = VLC_FOURCC('I','4','2','0');
 348             break;
 349         }
 350     }
 351 }
 352
 353 static bool IsChromaSupported( vlc_fourcc_t i_chroma )
 354 {
 355     return i_chroma == VLC_FOURCC('I','4','2','0') ||
 356            i_chroma == VLC_FOURCC('I','Y','U','V') ||
 357            i_chroma == VLC_FOURCC('Y','V','1','2') ||
 358            i_chroma == VLC_FOURCC('I','4','2','2');
 359 }
 360
 361 /*****************************************************************************
 362  * Init: initialize Deinterlace video thread output method
 363  *****************************************************************************/
 364 static int Init( vout_thread_t *p_vout )
 365 {
 366     int i_index;
 367     picture_t *p_pic;
 368
 369     I_OUTPUTPICTURES = 0;
 370
 371     if( !IsChromaSupported( p_vout->render.i_chroma ) )
 372         return VLC_EGENERIC; /* unknown chroma */
 373
 374     /* Initialize the output structure, full of directbuffers since we want
 375      * the decoder to output directly to our structures. */
 376     p_vout->output.i_chroma = p_vout->render.i_chroma;
 377     p_vout->output.i_width  = p_vout->render.i_width;
 378     p_vout->output.i_height = p_vout->render.i_height;
 379     p_vout->output.i_aspect = p_vout->render.i_aspect;
 380     p_vout->fmt_out = p_vout->fmt_in;
 381
 382     /* Try to open the real video output */
 383     p_vout->p_sys->p_vout = SpawnRealVout( p_vout );
 384
 385     if( p_vout->p_sys->p_vout == NULL )
 386     {
 387         /* Everything failed */
 388         msg_Err( p_vout, "cannot open vout, aborting" );
 389
 390         return VLC_EGENERIC;
 391     }
 392
 393     var_AddCallback( p_vout, "deinterlace-mode", FilterCallback, NULL );
 394
 395     ALLOCATE_DIRECTBUFFERS( VOUT_MAX_PICTURES );
 396
 397     ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
 398
 399     ADD_PARENT_CALLBACKS( SendEventsToChild );
 400
 401     return VLC_SUCCESS;
 402 }
 403
 404 /*****************************************************************************
 405  * SpawnRealVout: spawn the real video output.
 406  *****************************************************************************/
 407 static vout_thread_t *SpawnRealVout( vout_thread_t *p_vout )
 408 {
 409     msg_Dbg( p_vout, "spawning the real video output" );
 410
 411     video_format_t fmt;
 412     GetOutputFormat( p_vout, &fmt, &p_vout->fmt_out );
 413
 414     return vout_Create( p_vout, &fmt );
 415 }
 416
 417 /*****************************************************************************
 418  * End: terminate Deinterlace video thread output method
 419  *****************************************************************************/
 420 static void End( vout_thread_t *p_vout )
 421 {
 422     int i_index;
 423
 424     DEL_PARENT_CALLBACKS( SendEventsToChild );
 425
 426     if( p_vout->p_sys->p_vout )
 427         DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
 428
 429     /* Free the fake output buffers we allocated */
 430     for( i_index = I_OUTPUTPICTURES ; i_index ; )
 431     {
 432         i_index--;
 433         free( PP_OUTPUTPICTURE[ i_index ]->p_data_orig );
 434     }
 435
 436     if( p_vout->p_sys->p_vout )
 437         vout_CloseAndRelease( p_vout->p_sys->p_vout );
 438 }
 439
 440 /*****************************************************************************
 441  * Destroy: destroy Deinterlace video thread output method
 442  *****************************************************************************
 443  * Terminate an output method created by DeinterlaceCreateOutputMethod
 444  *****************************************************************************/
 445 static void Destroy( vlc_object_t *p_this )
 446 {
 447     vout_thread_t *p_vout = (vout_thread_t *)p_this;
 448     vlc_mutex_destroy( &p_vout->p_sys->filter_lock );
 449     free( p_vout->p_sys );
 450 }
 451
 452 /*****************************************************************************
 453  * Render: displays previously rendered output
 454  *****************************************************************************
 455  * This function send the currently rendered image to Deinterlace image,
 456  * waits until it is displayed and switch the two rendering buffers, preparing
 457  * next frame.
 458  *****************************************************************************/
 459 static void Render ( vout_thread_t *p_vout, picture_t *p_pic )
 460 {
 461     vout_sys_t *p_sys = p_vout->p_sys;
 462     picture_t *pp_outpic[2];
 463
 464     /* FIXME are they needed ? */
 465     p_vout->fmt_out.i_x_offset = p_vout->fmt_in.i_x_offset;
 466     p_vout->fmt_out.i_y_offset = p_vout->fmt_in.i_y_offset;
 467     p_vout->fmt_out.i_visible_width = p_vout->fmt_in.i_visible_width;
 468     p_vout->fmt_out.i_visible_height = p_vout->fmt_in.i_visible_height;
 469
 470     /* FIXME p_sys->p_vout->* should NOT be changed FIXME */
 471     p_sys->p_vout->fmt_in.i_x_offset = p_vout->fmt_out.i_x_offset;
 472     p_sys->p_vout->fmt_in.i_y_offset = p_vout->fmt_out.i_y_offset;
 473     p_sys->p_vout->fmt_in.i_visible_width = p_vout->fmt_out.i_visible_width;
 474     p_sys->p_vout->fmt_in.i_visible_height = p_vout->fmt_in.i_visible_height;
 475     if( p_vout->p_sys->b_half_height )
 476     {
 477         p_sys->p_vout->fmt_in.i_y_offset /= 2;
 478         p_sys->p_vout->fmt_in.i_visible_height /= 2;
 479     }
 480
 481     if( p_vout->i_changes & VOUT_ASPECT_CHANGE )
 482     {
 483         p_vout->i_changes &= ~VOUT_ASPECT_CHANGE;
 484
 485         p_vout->fmt_out.i_aspect = p_vout->fmt_in.i_aspect;
 486         p_vout->fmt_out.i_sar_num = p_vout->fmt_in.i_sar_num;
 487         p_vout->fmt_out.i_sar_den = p_vout->fmt_in.i_sar_den;
 488
 489         video_format_t fmt = p_vout->fmt_out;
 490         if( p_vout->p_sys->b_half_height )
 491         {
 492             fmt.i_height /= 2; fmt.i_visible_height /= 2; fmt.i_y_offset /= 2;
 493             fmt.i_sar_den *= 2;
 494         }
 495
 496         p_sys->p_vout = vout_Request( p_vout, p_sys->p_vout, &fmt );
 497     }
 498     if( !p_sys->p_vout )
 499         return;
 500
 501     pp_outpic[0] = pp_outpic[1] = NULL;
 502
 503     vlc_mutex_lock( &p_vout->p_sys->filter_lock );
 504
 505     /* Get a new picture */
 506     while( ( pp_outpic[0] = vout_CreatePicture( p_vout->p_sys->p_vout,
 507                                                 0, 0, 0 ) )
 508               == NULL )
 509     {
 510         if( !vlc_object_alive( p_vout ) || p_vout->b_error )
 511         {
 512             vlc_mutex_unlock( &p_vout->p_sys->filter_lock );
 513             return;
 514         }
 515         msleep( VOUT_OUTMEM_SLEEP );
 516     }
 517
 518     pp_outpic[0]->date = p_pic->date;
 519
 520     /* If we are using double rate, get an additional new picture */
 521     if( p_vout->p_sys->b_double_rate )
 522     {
 523         while( ( pp_outpic[1] = vout_CreatePicture( p_vout->p_sys->p_vout,
 524                                                  0, 0, 0 ) )
 525                   == NULL )
 526         {
 527             if( !vlc_object_alive( p_vout ) || p_vout->b_error )
 528             {
 529                 vout_DestroyPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
 530                 vlc_mutex_unlock( &p_vout->p_sys->filter_lock );
 531                 return;
 532             }
 533             msleep( VOUT_OUTMEM_SLEEP );
 534         }
 535
 536         /* 20ms is a bit arbitrary, but it's only for the first image we get */
 537         if( !p_vout->p_sys->last_date )
 538             pp_outpic[1]->date = p_pic->date + 20000;
 539         else
 540             pp_outpic[1]->date = (3 * p_pic->date - p_vout->p_sys->last_date) / 2;
 541         p_vout->p_sys->last_date = p_pic->date;
 542     }
 543
 544     switch( p_vout->p_sys->i_mode )
 545     {
 546         case DEINTERLACE_DISCARD:
 547             RenderDiscard( p_vout, pp_outpic[0], p_pic, 0 );
 548             vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
 549             break;
 550
 551         case DEINTERLACE_BOB:
 552             RenderBob( p_vout, pp_outpic[0], p_pic, p_pic->b_top_field_first ? 0 : 1 );
 553             vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
 554             RenderBob( p_vout, pp_outpic[1], p_pic, p_pic->b_top_field_first ? 1 : 0 );
 555             vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[1] );
 556             break;
 557
 558         case DEINTERLACE_LINEAR:
 559             RenderLinear( p_vout, pp_outpic[0], p_pic, p_pic->b_top_field_first ? 0 : 1 );
 560             vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
 561             RenderLinear( p_vout, pp_outpic[1], p_pic, p_pic->b_top_field_first ? 1 : 0 );
 562             vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[1] );
 563             break;
 564
 565         case DEINTERLACE_MEAN:
 566             RenderMean( p_vout, pp_outpic[0], p_pic );
 567             vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
 568             break;
 569
 570         case DEINTERLACE_BLEND:
 571             RenderBlend( p_vout, pp_outpic[0], p_pic );
 572             vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
 573             break;
 574
 575         case DEINTERLACE_X:
 576             RenderX( pp_outpic[0], p_pic );
 577             vout_DisplayPicture( p_vout->p_sys->p_vout, pp_outpic[0] );
 578             break;
 579     }
 580     vlc_mutex_unlock( &p_vout->p_sys->filter_lock );
 581 }
 582
 583 /*****************************************************************************
 584  * RenderDiscard: only keep TOP or BOTTOM field, discard the other.
 585  *****************************************************************************/
 586 static void RenderDiscard( vout_thread_t *p_vout,
 587                            picture_t *p_outpic, picture_t *p_pic, int i_field )
 588 {
 589     int i_plane;
 590
 591     /* Copy image and skip lines */
 592     for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
 593     {
 594         uint8_t *p_in, *p_out_end, *p_out;
 595         int i_increment;
 596
 597         p_in = p_pic->p[i_plane].p_pixels
 598                    + i_field * p_pic->p[i_plane].i_pitch;
 599
 600         p_out = p_outpic->p[i_plane].p_pixels;
 601         p_out_end = p_out + p_outpic->p[i_plane].i_pitch
 602                              * p_outpic->p[i_plane].i_visible_lines;
 603
 604         switch( p_vout->render.i_chroma )
 605         {
 606         case VLC_FOURCC('I','4','2','0'):
 607         case VLC_FOURCC('I','Y','U','V'):
 608         case VLC_FOURCC('Y','V','1','2'):
 609
 610             for( ; p_out < p_out_end ; )
 611             {
 612                 vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 613
 614                 p_out += p_outpic->p[i_plane].i_pitch;
 615                 p_in += 2 * p_pic->p[i_plane].i_pitch;
 616             }
 617             break;
 618
 619         case VLC_FOURCC('I','4','2','2'):
 620
 621             i_increment = 2 * p_pic->p[i_plane].i_pitch;
 622
 623             if( i_plane == Y_PLANE )
 624             {
 625                 for( ; p_out < p_out_end ; )
 626                 {
 627                     vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 628                     p_out += p_outpic->p[i_plane].i_pitch;
 629                     vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 630                     p_out += p_outpic->p[i_plane].i_pitch;
 631                     p_in += i_increment;
 632                 }
 633             }
 634             else
 635             {
 636                 for( ; p_out < p_out_end ; )
 637                 {
 638                     vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 639                     p_out += p_outpic->p[i_plane].i_pitch;
 640                     p_in += i_increment;
 641                 }
 642             }
 643             break;
 644
 645         default:
 646             break;
 647         }
 648     }
 649 }
 650
 651 /*****************************************************************************
 652  * RenderBob: renders a BOB picture - simple copy
 653  *****************************************************************************/
 654 static void RenderBob( vout_thread_t *p_vout,
 655                        picture_t *p_outpic, picture_t *p_pic, int i_field )
 656 {
 657     int i_plane;
 658
 659     /* Copy image and skip lines */
 660     for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
 661     {
 662         uint8_t *p_in, *p_out_end, *p_out;
 663
 664         p_in = p_pic->p[i_plane].p_pixels;
 665         p_out = p_outpic->p[i_plane].p_pixels;
 666         p_out_end = p_out + p_outpic->p[i_plane].i_pitch
 667                              * p_outpic->p[i_plane].i_visible_lines;
 668
 669         switch( p_vout->render.i_chroma )
 670         {
 671             case VLC_FOURCC('I','4','2','0'):
 672             case VLC_FOURCC('I','Y','U','V'):
 673             case VLC_FOURCC('Y','V','1','2'):
 674                 /* For BOTTOM field we need to add the first line */
 675                 if( i_field == 1 )
 676                 {
 677                     vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 678                     p_in += p_pic->p[i_plane].i_pitch;
 679                     p_out += p_outpic->p[i_plane].i_pitch;
 680                 }
 681
 682                 p_out_end -= 2 * p_outpic->p[i_plane].i_pitch;
 683
 684                 for( ; p_out < p_out_end ; )
 685                 {
 686                     vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 687
 688                     p_out += p_outpic->p[i_plane].i_pitch;
 689
 690                     vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 691
 692                     p_in += 2 * p_pic->p[i_plane].i_pitch;
 693                     p_out += p_outpic->p[i_plane].i_pitch;
 694                 }
 695
 696                 vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 697
 698                 /* For TOP field we need to add the last line */
 699                 if( i_field == 0 )
 700                 {
 701                     p_in += p_pic->p[i_plane].i_pitch;
 702                     p_out += p_outpic->p[i_plane].i_pitch;
 703                     vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 704                 }
 705                 break;
 706
 707             case VLC_FOURCC('I','4','2','2'):
 708                 /* For BOTTOM field we need to add the first line */
 709                 if( i_field == 1 )
 710                 {
 711                     vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 712                     p_in += p_pic->p[i_plane].i_pitch;
 713                     p_out += p_outpic->p[i_plane].i_pitch;
 714                 }
 715
 716                 p_out_end -= 2 * p_outpic->p[i_plane].i_pitch;
 717
 718                 if( i_plane == Y_PLANE )
 719                 {
 720                     for( ; p_out < p_out_end ; )
 721                     {
 722                         vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 723
 724                         p_out += p_outpic->p[i_plane].i_pitch;
 725
 726                         vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 727
 728                         p_in += 2 * p_pic->p[i_plane].i_pitch;
 729                         p_out += p_outpic->p[i_plane].i_pitch;
 730                     }
 731                 }
 732                 else
 733                 {
 734                     for( ; p_out < p_out_end ; )
 735                     {
 736                         vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 737
 738                         p_out += p_outpic->p[i_plane].i_pitch;
 739                         p_in += 2 * p_pic->p[i_plane].i_pitch;
 740                     }
 741                 }
 742
 743                 vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 744
 745                 /* For TOP field we need to add the last line */
 746                 if( i_field == 0 )
 747                 {
 748                     p_in += p_pic->p[i_plane].i_pitch;
 749                     p_out += p_outpic->p[i_plane].i_pitch;
 750                     vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 751                 }
 752                 break;
 753         }
 754     }
 755 }
 756
 757 #define Merge p_vout->p_sys->pf_merge
 758 #define EndMerge if(p_vout->p_sys->pf_end_merge) p_vout->p_sys->pf_end_merge
 759
 760 /*****************************************************************************
 761  * RenderLinear: BOB with linear interpolation
 762  *****************************************************************************/
 763 static void RenderLinear( vout_thread_t *p_vout,
 764                           picture_t *p_outpic, picture_t *p_pic, int i_field )
 765 {
 766     int i_plane;
 767
 768     /* Copy image and skip lines */
 769     for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
 770     {
 771         uint8_t *p_in, *p_out_end, *p_out;
 772
 773         p_in = p_pic->p[i_plane].p_pixels;
 774         p_out = p_outpic->p[i_plane].p_pixels;
 775         p_out_end = p_out + p_outpic->p[i_plane].i_pitch
 776                              * p_outpic->p[i_plane].i_visible_lines;
 777
 778         /* For BOTTOM field we need to add the first line */
 779         if( i_field == 1 )
 780         {
 781             vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 782             p_in += p_pic->p[i_plane].i_pitch;
 783             p_out += p_outpic->p[i_plane].i_pitch;
 784         }
 785
 786         p_out_end -= 2 * p_outpic->p[i_plane].i_pitch;
 787
 788         for( ; p_out < p_out_end ; )
 789         {
 790             vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 791
 792             p_out += p_outpic->p[i_plane].i_pitch;
 793
 794             Merge( p_out, p_in, p_in + 2 * p_pic->p[i_plane].i_pitch,
 795                    p_pic->p[i_plane].i_pitch );
 796
 797             p_in += 2 * p_pic->p[i_plane].i_pitch;
 798             p_out += p_outpic->p[i_plane].i_pitch;
 799         }
 800
 801         vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 802
 803         /* For TOP field we need to add the last line */
 804         if( i_field == 0 )
 805         {
 806             p_in += p_pic->p[i_plane].i_pitch;
 807             p_out += p_outpic->p[i_plane].i_pitch;
 808             vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 809         }
 810     }
 811     EndMerge();
 812 }
 813
 814 static void RenderMean( vout_thread_t *p_vout,
 815                         picture_t *p_outpic, picture_t *p_pic )
 816 {
 817     int i_plane;
 818
 819     /* Copy image and skip lines */
 820     for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
 821     {
 822         uint8_t *p_in, *p_out_end, *p_out;
 823
 824         p_in = p_pic->p[i_plane].p_pixels;
 825
 826         p_out = p_outpic->p[i_plane].p_pixels;
 827         p_out_end = p_out + p_outpic->p[i_plane].i_pitch
 828                              * p_outpic->p[i_plane].i_visible_lines;
 829
 830         /* All lines: mean value */
 831         for( ; p_out < p_out_end ; )
 832         {
 833             Merge( p_out, p_in, p_in + p_pic->p[i_plane].i_pitch,
 834                    p_pic->p[i_plane].i_pitch );
 835
 836             p_out += p_outpic->p[i_plane].i_pitch;
 837             p_in += 2 * p_pic->p[i_plane].i_pitch;
 838         }
 839     }
 840     EndMerge();
 841 }
 842
 843 static void RenderBlend( vout_thread_t *p_vout,
 844                          picture_t *p_outpic, picture_t *p_pic )
 845 {
 846     int i_plane;
 847
 848     /* Copy image and skip lines */
 849     for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
 850     {
 851         uint8_t *p_in, *p_out_end, *p_out;
 852
 853         p_in = p_pic->p[i_plane].p_pixels;
 854
 855         p_out = p_outpic->p[i_plane].p_pixels;
 856         p_out_end = p_out + p_outpic->p[i_plane].i_pitch
 857                              * p_outpic->p[i_plane].i_visible_lines;
 858
 859         switch( p_vout->render.i_chroma )
 860         {
 861             case VLC_FOURCC('I','4','2','0'):
 862             case VLC_FOURCC('I','Y','U','V'):
 863             case VLC_FOURCC('Y','V','1','2'):
 864                 /* First line: simple copy */
 865                 vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 866                 p_out += p_outpic->p[i_plane].i_pitch;
 867
 868                 /* Remaining lines: mean value */
 869                 for( ; p_out < p_out_end ; )
 870                 {
 871                     Merge( p_out, p_in, p_in + p_pic->p[i_plane].i_pitch,
 872                            p_pic->p[i_plane].i_pitch );
 873
 874                     p_out += p_outpic->p[i_plane].i_pitch;
 875                     p_in += p_pic->p[i_plane].i_pitch;
 876                 }
 877                 break;
 878
 879             case VLC_FOURCC('I','4','2','2'):
 880                 /* First line: simple copy */
 881                 vlc_memcpy( p_out, p_in, p_pic->p[i_plane].i_pitch );
 882                 p_out += p_outpic->p[i_plane].i_pitch;
 883
 884                 /* Remaining lines: mean value */
 885                 if( i_plane == Y_PLANE )
 886                 {
 887                     for( ; p_out < p_out_end ; )
 888                     {
 889                         Merge( p_out, p_in, p_in + p_pic->p[i_plane].i_pitch,
 890                                p_pic->p[i_plane].i_pitch );
 891
 892                         p_out += p_outpic->p[i_plane].i_pitch;
 893                         p_in += p_pic->p[i_plane].i_pitch;
 894                     }
 895                 }
 896
 897                 else
 898                 {
 899                     for( ; p_out < p_out_end ; )
 900                     {
 901                         Merge( p_out, p_in, p_in + p_pic->p[i_plane].i_pitch,
 902                                p_pic->p[i_plane].i_pitch );
 903
 904                         p_out += p_outpic->p[i_plane].i_pitch;
 905                         p_in += 2*p_pic->p[i_plane].i_pitch;
 906                     }
 907                 }
 908                 break;
 909         }
 910     }
 911     EndMerge();
 912 }
 913
 914 #undef Merge
 915
 916 static void MergeGeneric( void *_p_dest, const void *_p_s1,
 917                           const void *_p_s2, size_t i_bytes )
 918 {
 919     uint8_t* p_dest = (uint8_t*)_p_dest;
 920     const uint8_t *p_s1 = (const uint8_t *)_p_s1;
 921     const uint8_t *p_s2 = (const uint8_t *)_p_s2;
 922     uint8_t* p_end = p_dest + i_bytes - 8;
 923
 924     while( p_dest < p_end )
 925     {
 926         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
 927         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
 928         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
 929         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
 930         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
 931         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
 932         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
 933         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
 934     }
 935
 936     p_end += 8;
 937
 938     while( p_dest < p_end )
 939     {
 940         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
 941     }
 942 }
 943
 944 #if defined(CAN_COMPILE_MMXEXT)
 945 static void MergeMMXEXT( void *_p_dest, const void *_p_s1, const void *_p_s2,
 946                          size_t i_bytes )
 947 {
 948     uint8_t* p_dest = (uint8_t*)_p_dest;
 949     const uint8_t *p_s1 = (const uint8_t *)_p_s1;
 950     const uint8_t *p_s2 = (const uint8_t *)_p_s2;
 951     uint8_t* p_end = p_dest + i_bytes - 8;
 952     while( p_dest < p_end )
 953     {
 954         __asm__  __volatile__( "movq %2,%%mm1;"
 955                                "pavgb %1, %%mm1;"
 956                                "movq %%mm1, %0" :"=m" (*p_dest):
 957                                                  "m" (*p_s1),
 958                                                  "m" (*p_s2) );
 959         p_dest += 8;
 960         p_s1 += 8;
 961         p_s2 += 8;
 962     }
 963
 964     p_end += 8;
 965
 966     while( p_dest < p_end )
 967     {
 968         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
 969     }
 970 }
 971 #endif
 972
 973 #if defined(CAN_COMPILE_3DNOW)
 974 static void Merge3DNow( void *_p_dest, const void *_p_s1, const void *_p_s2,
 975                         size_t i_bytes )
 976 {
 977     uint8_t* p_dest = (uint8_t*)_p_dest;
 978     const uint8_t *p_s1 = (const uint8_t *)_p_s1;
 979     const uint8_t *p_s2 = (const uint8_t *)_p_s2;
 980     uint8_t* p_end = p_dest + i_bytes - 8;
 981     while( p_dest < p_end )
 982     {
 983         __asm__  __volatile__( "movq %2,%%mm1;"
 984                                "pavgusb %1, %%mm1;"
 985                                "movq %%mm1, %0" :"=m" (*p_dest):
 986                                                  "m" (*p_s1),
 987                                                  "m" (*p_s2) );
 988         p_dest += 8;
 989         p_s1 += 8;
 990         p_s2 += 8;
 991     }
 992
 993     p_end += 8;
 994
 995     while( p_dest < p_end )
 996     {
 997         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
 998     }
 999 }
1000 #endif
1001
1002 #if defined(CAN_COMPILE_SSE)
1003 static void MergeSSE2( void *_p_dest, const void *_p_s1, const void *_p_s2,
1004                        size_t i_bytes )
1005 {
1006     uint8_t* p_dest = (uint8_t*)_p_dest;
1007     const uint8_t *p_s1 = (const uint8_t *)_p_s1;
1008     const uint8_t *p_s2 = (const uint8_t *)_p_s2;
1009     uint8_t* p_end;
1010     while( (uintptr_t)p_s1 % 16 )
1011     {
1012         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
1013     }
1014     p_end = p_dest + i_bytes - 16;
1015     while( p_dest < p_end )
1016     {
1017         __asm__  __volatile__( "movdqu %2,%%xmm1;"
1018                                "pavgb %1, %%xmm1;"
1019                                "movdqu %%xmm1, %0" :"=m" (*p_dest):
1020                                                  "m" (*p_s1),
1021                                                  "m" (*p_s2) );
1022         p_dest += 16;
1023         p_s1 += 16;
1024         p_s2 += 16;
1025     }
1026
1027     p_end += 16;
1028
1029     while( p_dest < p_end )
1030     {
1031         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
1032     }
1033 }
1034 #endif
1035
1036 #if defined(CAN_COMPILE_MMXEXT) || defined(CAN_COMPILE_SSE)
1037 static void EndMMX( void )
1038 {
1039     __asm__ __volatile__( "emms" :: );
1040 }
1041 #endif
1042
1043 #if defined(CAN_COMPILE_3DNOW)
1044 static void End3DNow( void )
1045 {
1046     __asm__ __volatile__( "femms" :: );
1047 }
1048 #endif
1049
1050 #ifdef CAN_COMPILE_C_ALTIVEC
1051 static void MergeAltivec( void *_p_dest, const void *_p_s1,
1052                           const void *_p_s2, size_t i_bytes )
1053 {
1054     uint8_t *p_dest = (uint8_t *)_p_dest;
1055     uint8_t *p_s1   = (uint8_t *)_p_s1;
1056     uint8_t *p_s2   = (uint8_t *)_p_s2;
1057     uint8_t *p_end  = p_dest + i_bytes - 15;
1058
1059     /* Use C until the first 16-bytes aligned destination pixel */
1060     while( (int)p_dest & 0xF )
1061     {
1062         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
1063     }
1064
1065     if( ( (int)p_s1 & 0xF ) | ( (int)p_s2 & 0xF ) )
1066     {
1067         /* Unaligned source */
1068         vector unsigned char s1v, s2v, destv;
1069         vector unsigned char s1oldv, s2oldv, s1newv, s2newv;
1070         vector unsigned char perm1v, perm2v;
1071
1072         perm1v = vec_lvsl( 0, p_s1 );
1073         perm2v = vec_lvsl( 0, p_s2 );
1074         s1oldv = vec_ld( 0, p_s1 );
1075         s2oldv = vec_ld( 0, p_s2 );
1076
1077         while( p_dest < p_end )
1078         {
1079             s1newv = vec_ld( 16, p_s1 );
1080             s2newv = vec_ld( 16, p_s2 );
1081             s1v    = vec_perm( s1oldv, s1newv, perm1v );
1082             s2v    = vec_perm( s2oldv, s2newv, perm2v );
1083             s1oldv = s1newv;
1084             s2oldv = s2newv;
1085             destv  = vec_avg( s1v, s2v );
1086             vec_st( destv, 0, p_dest );
1087
1088             p_s1   += 16;
1089             p_s2   += 16;
1090             p_dest += 16;
1091         }
1092     }
1093     else
1094     {
1095         /* Aligned source */
1096         vector unsigned char s1v, s2v, destv;
1097
1098         while( p_dest < p_end )
1099         {
1100             s1v   = vec_ld( 0, p_s1 );
1101             s2v   = vec_ld( 0, p_s2 );
1102             destv = vec_avg( s1v, s2v );
1103             vec_st( destv, 0, p_dest );
1104
1105             p_s1   += 16;
1106             p_s2   += 16;
1107             p_dest += 16;
1108         }
1109     }
1110
1111     p_end += 15;
1112
1113     while( p_dest < p_end )
1114     {
1115         *p_dest++ = ( (uint16_t)(*p_s1++) + (uint16_t)(*p_s2++) ) >> 1;
1116     }
1117 }
1118 #endif
1119
1120 /*****************************************************************************
1121  * RenderX: This algo works on a 8x8 block basic, it copies the top field
1122  * and apply a process to recreate the bottom field :
1123  *  If a 8x8 block is classified as :
1124  *   - progressive: it applies a small blend (1,6,1)
1125  *   - interlaced:
1126  *    * in the MMX version: we do a ME between the 2 fields, if there is a
1127  *    good match we use MC to recreate the bottom field (with a small
1128  *    blend (1,6,1) )
1129  *    * otherwise: it recreates the bottom field by an edge oriented
1130  *    interpolation.
1131   *****************************************************************************/
1132
1133 /* XDeint8x8Detect: detect if a 8x8 block is interlaced.
1134  * XXX: It need to access to 8x10
1135  * We use more than 8 lines to help with scrolling (text)
1136  * (and because XDeint8x8Frame use line 9)
1137  * XXX: smooth/uniform area with noise detection doesn't works well
1138  * but it's not really a problem because they don't have much details anyway
1139  */
1140 static inline int ssd( int a ) { return a*a; }
1141 static inline int XDeint8x8DetectC( uint8_t *src, int i_src )
1142 {
1143     int y, x;
1144     int ff, fr;
1145     int fc;
1146
1147     /* Detect interlacing */
1148     fc = 0;
1149     for( y = 0; y < 7; y += 2 )
1150     {
1151         ff = fr = 0;
1152         for( x = 0; x < 8; x++ )
1153         {
1154             fr += ssd(src[      x] - src[1*i_src+x]) +
1155                   ssd(src[i_src+x] - src[2*i_src+x]);
1156             ff += ssd(src[      x] - src[2*i_src+x]) +
1157                   ssd(src[i_src+x] - src[3*i_src+x]);
1158         }
1159         if( ff < 6*fr/8 && fr > 32 )
1160             fc++;
1161
1162         src += 2*i_src;
1163     }
1164
1165     return fc < 1 ? false : true;
1166 }
1167 #ifdef CAN_COMPILE_MMXEXT
1168 static inline int XDeint8x8DetectMMXEXT( uint8_t *src, int i_src )
1169 {
1170
1171     int y, x;
1172     int32_t ff, fr;
1173     int fc;
1174
1175     /* Detect interlacing */
1176     fc = 0;
1177     pxor_r2r( mm7, mm7 );
1178     for( y = 0; y < 9; y += 2 )
1179     {
1180         ff = fr = 0;
1181         pxor_r2r( mm5, mm5 );
1182         pxor_r2r( mm6, mm6 );
1183         for( x = 0; x < 8; x+=4 )
1184         {
1185             movd_m2r( src[        x], mm0 );
1186             movd_m2r( src[1*i_src+x], mm1 );
1187             movd_m2r( src[2*i_src+x], mm2 );
1188             movd_m2r( src[3*i_src+x], mm3 );
1189
1190             punpcklbw_r2r( mm7, mm0 );
1191             punpcklbw_r2r( mm7, mm1 );
1192             punpcklbw_r2r( mm7, mm2 );
1193             punpcklbw_r2r( mm7, mm3 );
1194
1195             movq_r2r( mm0, mm4 );
1196
1197             psubw_r2r( mm1, mm0 );
1198             psubw_r2r( mm2, mm4 );
1199
1200             psubw_r2r( mm1, mm2 );
1201             psubw_r2r( mm1, mm3 );
1202
1203             pmaddwd_r2r( mm0, mm0 );
1204             pmaddwd_r2r( mm4, mm4 );
1205             pmaddwd_r2r( mm2, mm2 );
1206             pmaddwd_r2r( mm3, mm3 );
1207             paddd_r2r( mm0, mm2 );
1208             paddd_r2r( mm4, mm3 );
1209             paddd_r2r( mm2, mm5 );
1210             paddd_r2r( mm3, mm6 );
1211         }
1212
1213         movq_r2r( mm5, mm0 );
1214         psrlq_i2r( 32, mm0 );
1215         paddd_r2r( mm0, mm5 );
1216         movd_r2m( mm5, fr );
1217
1218         movq_r2r( mm6, mm0 );
1219         psrlq_i2r( 32, mm0 );
1220         paddd_r2r( mm0, mm6 );
1221         movd_r2m( mm6, ff );
1222
1223         if( ff < 6*fr/8 && fr > 32 )
1224             fc++;
1225
1226         src += 2*i_src;
1227     }
1228     return fc;
1229 }
1230 #endif
1231
1232 static inline void XDeint8x8MergeC( uint8_t *dst, int i_dst,
1233                                     uint8_t *src1, int i_src1,
1234                                     uint8_t *src2, int i_src2 )
1235 {
1236     int y, x;
1237
1238     /* Progressive */
1239     for( y = 0; y < 8; y += 2 )
1240     {
1241         memcpy( dst, src1, 8 );
1242         dst  += i_dst;
1243
1244         for( x = 0; x < 8; x++ )
1245             dst[x] = (src1[x] + 6*src2[x] + src1[i_src1+x] + 4 ) >> 3;
1246         dst += i_dst;
1247
1248         src1 += i_src1;
1249         src2 += i_src2;
1250     }
1251 }
1252
1253 #ifdef CAN_COMPILE_MMXEXT
1254 static inline void XDeint8x8MergeMMXEXT( uint8_t *dst, int i_dst,
1255                                          uint8_t *src1, int i_src1,
1256                                          uint8_t *src2, int i_src2 )
1257 {
1258     static const uint64_t m_4 = INT64_C(0x0004000400040004);
1259     int y, x;
1260
1261     /* Progressive */
1262     pxor_r2r( mm7, mm7 );
1263     for( y = 0; y < 8; y += 2 )
1264     {
1265         for( x = 0; x < 8; x +=4 )
1266         {
1267             movd_m2r( src1[x], mm0 );
1268             movd_r2m( mm0, dst[x] );
1269
1270             movd_m2r( src2[x], mm1 );
1271             movd_m2r( src1[i_src1+x], mm2 );
1272
1273             punpcklbw_r2r( mm7, mm0 );
1274             punpcklbw_r2r( mm7, mm1 );
1275             punpcklbw_r2r( mm7, mm2 );
1276             paddw_r2r( mm1, mm1 );
1277             movq_r2r( mm1, mm3 );
1278             paddw_r2r( mm3, mm3 );
1279             paddw_r2r( mm2, mm0 );
1280             paddw_r2r( mm3, mm1 );
1281             paddw_m2r( m_4, mm1 );
1282             paddw_r2r( mm1, mm0 );
1283             psraw_i2r( 3, mm0 );
1284             packuswb_r2r( mm7, mm0 );
1285             movd_r2m( mm0, dst[i_dst+x] );
1286         }
1287         dst += 2*i_dst;
1288         src1 += i_src1;
1289         src2 += i_src2;
1290     }
1291 }
1292
1293 #endif
1294
1295 /* For debug */
1296 static inline void XDeint8x8Set( uint8_t *dst, int i_dst, uint8_t v )
1297 {
1298     int y;
1299     for( y = 0; y < 8; y++ )
1300         memset( &dst[y*i_dst], v, 8 );
1301 }
1302
1303 /* XDeint8x8FieldE: Stupid deinterlacing (1,0,1) for block that miss a
1304  * neighbour
1305  * (Use 8x9 pixels)
1306  * TODO: a better one for the inner part.
1307  */
1308 static inline void XDeint8x8FieldEC( uint8_t *dst, int i_dst,
1309                                      uint8_t *src, int i_src )
1310 {
1311     int y, x;
1312
1313     /* Interlaced */
1314     for( y = 0; y < 8; y += 2 )
1315     {
1316         memcpy( dst, src, 8 );
1317         dst += i_dst;
1318
1319         for( x = 0; x < 8; x++ )
1320             dst[x] = (src[x] + src[2*i_src+x] ) >> 1;
1321         dst += 1*i_dst;
1322         src += 2*i_src;
1323     }
1324 }
1325 #ifdef CAN_COMPILE_MMXEXT
1326 static inline void XDeint8x8FieldEMMXEXT( uint8_t *dst, int i_dst,
1327                                           uint8_t *src, int i_src )
1328 {
1329     int y;
1330
1331     /* Interlaced */
1332     for( y = 0; y < 8; y += 2 )
1333     {
1334         movq_m2r( src[0], mm0 );
1335         movq_r2m( mm0, dst[0] );
1336         dst += i_dst;
1337
1338         movq_m2r( src[2*i_src], mm1 );
1339         pavgb_r2r( mm1, mm0 );
1340
1341         movq_r2m( mm0, dst[0] );
1342
1343         dst += 1*i_dst;
1344         src += 2*i_src;
1345     }
1346 }
1347 #endif
1348
1349 /* XDeint8x8Field: Edge oriented interpolation
1350  * (Need -4 and +5 pixels H, +1 line)
1351  */
1352 static inline void XDeint8x8FieldC( uint8_t *dst, int i_dst,
1353                                     uint8_t *src, int i_src )
1354 {
1355     int y, x;
1356
1357     /* Interlaced */
1358     for( y = 0; y < 8; y += 2 )
1359     {
1360         memcpy( dst, src, 8 );
1361         dst += i_dst;
1362
1363         for( x = 0; x < 8; x++ )
1364         {
1365             uint8_t *src2 = &src[2*i_src];
1366             /* I use 8 pixels just to match the MMX version, but it's overkill
1367              * 5 would be enough (less isn't good) */
1368             const int c0 = abs(src[x-4]-src2[x-2]) + abs(src[x-3]-src2[x-1]) +
1369                            abs(src[x-2]-src2[x+0]) + abs(src[x-1]-src2[x+1]) +
1370                            abs(src[x+0]-src2[x+2]) + abs(src[x+1]-src2[x+3]) +
1371                            abs(src[x+2]-src2[x+4]) + abs(src[x+3]-src2[x+5]);
1372
1373             const int c1 = abs(src[x-3]-src2[x-3]) + abs(src[x-2]-src2[x-2]) +
1374                            abs(src[x-1]-src2[x-1]) + abs(src[x+0]-src2[x+0]) +
1375                            abs(src[x+1]-src2[x+1]) + abs(src[x+2]-src2[x+2]) +
1376                            abs(src[x+3]-src2[x+3]) + abs(src[x+4]-src2[x+4]);
1377
1378             const int c2 = abs(src[x-2]-src2[x-4]) + abs(src[x-1]-src2[x-3]) +
1379                            abs(src[x+0]-src2[x-2]) + abs(src[x+1]-src2[x-1]) +
1380                            abs(src[x+2]-src2[x+0]) + abs(src[x+3]-src2[x+1]) +
1381                            abs(src[x+4]-src2[x+2]) + abs(src[x+5]-src2[x+3]);
1382
1383             if( c0 < c1 && c1 <= c2 )
1384                 dst[x] = (src[x-1] + src2[x+1]) >> 1;
1385             else if( c2 < c1 && c1 <= c0 )
1386                 dst[x] = (src[x+1] + src2[x-1]) >> 1;
1387             else
1388                 dst[x] = (src[x+0] + src2[x+0]) >> 1;
1389         }
1390
1391         dst += 1*i_dst;
1392         src += 2*i_src;
1393     }
1394 }
1395 #ifdef CAN_COMPILE_MMXEXT
1396 static inline void XDeint8x8FieldMMXEXT( uint8_t *dst, int i_dst,
1397                                          uint8_t *src, int i_src )
1398 {
1399     int y, x;
1400
1401     /* Interlaced */
1402     for( y = 0; y < 8; y += 2 )
1403     {
1404         memcpy( dst, src, 8 );
1405         dst += i_dst;
1406
1407         for( x = 0; x < 8; x++ )
1408         {
1409             uint8_t *src2 = &src[2*i_src];
1410             int32_t c0, c1, c2;
1411
1412             movq_m2r( src[x-2], mm0 );
1413             movq_m2r( src[x-3], mm1 );
1414             movq_m2r( src[x-4], mm2 );
1415
1416             psadbw_m2r( src2[x-4], mm0 );
1417             psadbw_m2r( src2[x-3], mm1 );
1418             psadbw_m2r( src2[x-2], mm2 );
1419
1420             movd_r2m( mm0, c2 );
1421             movd_r2m( mm1, c1 );
1422             movd_r2m( mm2, c0 );
1423
1424             if( c0 < c1 && c1 <= c2 )
1425                 dst[x] = (src[x-1] + src2[x+1]) >> 1;
1426             else if( c2 < c1 && c1 <= c0 )
1427                 dst[x] = (src[x+1] + src2[x-1]) >> 1;
1428             else
1429                 dst[x] = (src[x+0] + src2[x+0]) >> 1;
1430         }
1431
1432         dst += 1*i_dst;
1433         src += 2*i_src;
1434     }
1435 }
1436 #endif
1437
1438 /* NxN arbitray size (and then only use pixel in the NxN block)
1439  */
1440 static inline int XDeintNxNDetect( uint8_t *src, int i_src,
1441                                    int i_height, int i_width )
1442 {
1443     int y, x;
1444     int ff, fr;
1445     int fc;
1446
1447
1448     /* Detect interlacing */
1449     /* FIXME way too simple, need to be more like XDeint8x8Detect */
1450     ff = fr = 0;
1451     fc = 0;
1452     for( y = 0; y < i_height - 2; y += 2 )
1453     {
1454         const uint8_t *s = &src[y*i_src];
1455         for( x = 0; x < i_width; x++ )
1456         {
1457             fr += ssd(s[      x] - s[1*i_src+x]);
1458             ff += ssd(s[      x] - s[2*i_src+x]);
1459         }
1460         if( ff < fr && fr > i_width / 2 )
1461             fc++;
1462     }
1463
1464     return fc < 2 ? false : true;
1465 }
1466
1467 static inline void XDeintNxNFrame( uint8_t *dst, int i_dst,
1468                                    uint8_t *src, int i_src,
1469                                    int i_width, int i_height )
1470 {
1471     int y, x;
1472
1473     /* Progressive */
1474     for( y = 0; y < i_height; y += 2 )
1475     {
1476         memcpy( dst, src, i_width );
1477         dst += i_dst;
1478
1479         if( y < i_height - 2 )
1480         {
1481             for( x = 0; x < i_width; x++ )
1482                 dst[x] = (src[x] + 2*src[1*i_src+x] + src[2*i_src+x] + 2 ) >> 2;
1483         }
1484         else
1485         {
1486             /* Blend last line */
1487             for( x = 0; x < i_width; x++ )
1488                 dst[x] = (src[x] + src[1*i_src+x] ) >> 1;
1489         }
1490         dst += 1*i_dst;
1491         src += 2*i_src;
1492     }
1493 }
1494
1495 static inline void XDeintNxNField( uint8_t *dst, int i_dst,
1496                                    uint8_t *src, int i_src,
1497                                    int i_width, int i_height )
1498 {
1499     int y, x;
1500
1501     /* Interlaced */
1502     for( y = 0; y < i_height; y += 2 )
1503     {
1504         memcpy( dst, src, i_width );
1505         dst += i_dst;
1506
1507         if( y < i_height - 2 )
1508         {
1509             for( x = 0; x < i_width; x++ )
1510                 dst[x] = (src[x] + src[2*i_src+x] ) >> 1;
1511         }
1512         else
1513         {
1514             /* Blend last line */
1515             for( x = 0; x < i_width; x++ )
1516                 dst[x] = (src[x] + src[i_src+x]) >> 1;
1517         }
1518         dst += 1*i_dst;
1519         src += 2*i_src;
1520     }
1521 }
1522
1523 static inline void XDeintNxN( uint8_t *dst, int i_dst, uint8_t *src, int i_src,
1524                               int i_width, int i_height )
1525 {
1526     if( XDeintNxNDetect( src, i_src, i_width, i_height ) )
1527         XDeintNxNField( dst, i_dst, src, i_src, i_width, i_height );
1528     else
1529         XDeintNxNFrame( dst, i_dst, src, i_src, i_width, i_height );
1530 }
1531
1532
1533 static inline int median( int a, int b, int c )
1534 {
1535     int min = a, max =a;
1536     if( b < min )
1537         min = b;
1538     else
1539         max = b;
1540
1541     if( c < min )
1542         min = c;
1543     else if( c > max )
1544         max = c;
1545
1546     return a + b + c - min - max;
1547 }
1548
1549
1550 /* XDeintBand8x8:
1551  */
1552 static inline void XDeintBand8x8C( uint8_t *dst, int i_dst,
1553                                    uint8_t *src, int i_src,
1554                                    const int i_mbx, int i_modx )
1555 {
1556     int x;
1557
1558     for( x = 0; x < i_mbx; x++ )
1559     {
1560         int s;
1561         if( ( s = XDeint8x8DetectC( src, i_src ) ) )
1562         {
1563             if( x == 0 || x == i_mbx - 1 )
1564                 XDeint8x8FieldEC( dst, i_dst, src, i_src );
1565             else
1566                 XDeint8x8FieldC( dst, i_dst, src, i_src );
1567         }
1568         else
1569         {
1570             XDeint8x8MergeC( dst, i_dst,
1571                              &src[0*i_src], 2*i_src,
1572                              &src[1*i_src], 2*i_src );
1573         }
1574
1575         dst += 8;
1576         src += 8;
1577     }
1578
1579     if( i_modx )
1580         XDeintNxN( dst, i_dst, src, i_src, i_modx, 8 );
1581 }
1582 #ifdef CAN_COMPILE_MMXEXT
1583 static inline void XDeintBand8x8MMXEXT( uint8_t *dst, int i_dst,
1584                                         uint8_t *src, int i_src,
1585                                         const int i_mbx, int i_modx )
1586 {
1587     int x;
1588
1589     /* Reset current line */
1590     for( x = 0; x < i_mbx; x++ )
1591     {
1592         int s;
1593         if( ( s = XDeint8x8DetectMMXEXT( src, i_src ) ) )
1594         {
1595             if( x == 0 || x == i_mbx - 1 )
1596                 XDeint8x8FieldEMMXEXT( dst, i_dst, src, i_src );
1597             else
1598                 XDeint8x8FieldMMXEXT( dst, i_dst, src, i_src );
1599         }
1600         else
1601         {
1602             XDeint8x8MergeMMXEXT( dst, i_dst,
1603                                   &src[0*i_src], 2*i_src,
1604                                   &src[1*i_src], 2*i_src );
1605         }
1606
1607         dst += 8;
1608         src += 8;
1609     }
1610
1611     if( i_modx )
1612         XDeintNxN( dst, i_dst, src, i_src, i_modx, 8 );
1613 }
1614 #endif
1615
1616 static void RenderX( picture_t *p_outpic, picture_t *p_pic )
1617 {
1618     int i_plane;
1619
1620     /* Copy image and skip lines */
1621     for( i_plane = 0 ; i_plane < p_pic->i_planes ; i_plane++ )
1622     {
1623         const int i_mby = ( p_outpic->p[i_plane].i_visible_lines + 7 )/8 - 1;
1624         const int i_mbx = p_outpic->p[i_plane].i_visible_pitch/8;
1625
1626         const int i_mody = p_outpic->p[i_plane].i_visible_lines - 8*i_mby;
1627         const int i_modx = p_outpic->p[i_plane].i_visible_pitch - 8*i_mbx;
1628
1629         const int i_dst = p_outpic->p[i_plane].i_pitch;
1630         const int i_src = p_pic->p[i_plane].i_pitch;
1631
1632         int y, x;
1633
1634         for( y = 0; y < i_mby; y++ )
1635         {
1636             uint8_t *dst = &p_outpic->p[i_plane].p_pixels[8*y*i_dst];
1637             uint8_t *src = &p_pic->p[i_plane].p_pixels[8*y*i_src];
1638
1639 #ifdef CAN_COMPILE_MMXEXT
1640             if( vlc_CPU() & CPU_CAPABILITY_MMXEXT )
1641                 XDeintBand8x8MMXEXT( dst, i_dst, src, i_src, i_mbx, i_modx );
1642             else
1643 #endif
1644                 XDeintBand8x8C( dst, i_dst, src, i_src, i_mbx, i_modx );
1645         }
1646
1647         /* Last line (C only)*/
1648         if( i_mody )
1649         {
1650             uint8_t *dst = &p_outpic->p[i_plane].p_pixels[8*y*i_dst];
1651             uint8_t *src = &p_pic->p[i_plane].p_pixels[8*y*i_src];
1652
1653             for( x = 0; x < i_mbx; x++ )
1654             {
1655                 XDeintNxN( dst, i_dst, src, i_src, 8, i_mody );
1656
1657                 dst += 8;
1658                 src += 8;
1659             }
1660
1661             if( i_modx )
1662                 XDeintNxN( dst, i_dst, src, i_src, i_modx, i_mody );
1663         }
1664     }
1665
1666 #ifdef CAN_COMPILE_MMXEXT
1667     if( vlc_CPU() & CPU_CAPABILITY_MMXEXT )
1668         emms();
1669 #endif
1670 }
1671
1672 /*****************************************************************************
1673  * SendEvents: forward mouse and keyboard events to the parent p_vout
1674  *****************************************************************************/
1675 static int SendEvents( vlc_object_t *p_this, char const *psz_var,
1676                        vlc_value_t oldval, vlc_value_t newval, void *_p_vout )
1677 {
1678     VLC_UNUSED(p_this); VLC_UNUSED(oldval);
1679     vout_thread_t *p_vout = (vout_thread_t *)_p_vout;
1680     vlc_value_t sentval = newval;
1681
1682     if( !strcmp( psz_var, "mouse-y" ) && p_vout->p_sys->b_half_height )
1683         sentval.i_int *= 2;
1684
1685     var_Set( p_vout, psz_var, sentval );
1686
1687     return VLC_SUCCESS;
1688 }
1689
1690 /*****************************************************************************
1691  * FilterCallback: called when changing the deinterlace method on the fly.
1692  *****************************************************************************/
1693 static int FilterCallback( vlc_object_t *p_this, char const *psz_cmd,
1694                            vlc_value_t oldval, vlc_value_t newval,
1695                            void *p_data )
1696 {
1697     VLC_UNUSED(psz_cmd); VLC_UNUSED(p_data); VLC_UNUSED(oldval);
1698     vout_thread_t * p_vout = (vout_thread_t *)p_this;
1699
1700     msg_Dbg( p_vout, "using %s deinterlace mode", newval.psz_string );
1701
1702     vlc_mutex_lock( &p_vout->p_sys->filter_lock );
1703     const bool b_old_half_height = p_vout->p_sys->b_half_height;
1704
1705     SetFilterMethod( p_vout, newval.psz_string );
1706
1707     if( !b_old_half_height == !p_vout->p_sys->b_half_height )
1708     {
1709         vlc_mutex_unlock( &p_vout->p_sys->filter_lock );
1710         return VLC_SUCCESS;
1711     }
1712
1713     /* We need to kill the old vout */
1714     if( p_vout->p_sys->p_vout )
1715     {
1716         DEL_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
1717         vout_CloseAndRelease( p_vout->p_sys->p_vout );
1718     }
1719
1720     /* Try to open a new video output */
1721     p_vout->p_sys->p_vout = SpawnRealVout( p_vout );
1722
1723     if( p_vout->p_sys->p_vout == NULL )
1724     {
1725         /* Everything failed */
1726         msg_Err( p_vout, "cannot open vout, aborting" );
1727
1728         vlc_mutex_unlock( &p_vout->p_sys->filter_lock );
1729         return VLC_EGENERIC;
1730     }
1731
1732     ADD_CALLBACKS( p_vout->p_sys->p_vout, SendEvents );
1733
1734     vlc_mutex_unlock( &p_vout->p_sys->filter_lock );
1735     return VLC_SUCCESS;
1736 }
1737
1738 /*****************************************************************************
1739  * SendEventsToChild: forward events to the child/children vout
1740  *****************************************************************************/
1741 static int SendEventsToChild( vlc_object_t *p_this, char const *psz_var,
1742                        vlc_value_t oldval, vlc_value_t newval, void *p_data )
1743 {
1744     VLC_UNUSED(p_data); VLC_UNUSED(oldval);
1745     vout_thread_t *p_vout = (vout_thread_t *)p_this;
1746     var_Set( p_vout->p_sys->p_vout, psz_var, newval );
1747     return VLC_SUCCESS;
1748 }
1749
1750
1751 /*****************************************************************************
1752  * video filter2 functions
1753  *****************************************************************************/
1754 static picture_t *Deinterlace( filter_t *p_filter, picture_t *p_pic )
1755 {
1756     vout_thread_t *p_vout = (vout_thread_t *)p_filter->p_sys;
1757     picture_t *p_pic_dst;
1758
1759     /* Request output picture */
1760     p_pic_dst = filter_NewPicture( p_filter );
1761     if( p_pic_dst == NULL )
1762     {
1763         picture_Release( p_pic );
1764         return NULL;
1765     }
1766
1767     switch( p_vout->p_sys->i_mode )
1768     {
1769         case DEINTERLACE_DISCARD:
1770             RenderDiscard( p_vout, p_pic_dst, p_pic, 0 );
1771             break;
1772
1773         case DEINTERLACE_BOB:
1774 #if 0
1775             RenderBob( p_vout, pp_outpic[0], p_pic, 0 );
1776             RenderBob( p_vout, pp_outpic[1], p_pic, 1 );
1777             break;
1778 #endif
1779
1780         case DEINTERLACE_LINEAR:
1781 #if 0
1782             RenderLinear( p_vout, pp_outpic[0], p_pic, 0 );
1783             RenderLinear( p_vout, pp_outpic[1], p_pic, 1 );
1784 #endif
1785             msg_Err( p_vout, "doubling the frame rate is not supported yet" );
1786             picture_Release( p_pic_dst );
1787             picture_Release( p_pic );
1788             return NULL;
1789
1790         case DEINTERLACE_MEAN:
1791             RenderMean( p_vout, p_pic_dst, p_pic );
1792             break;
1793
1794         case DEINTERLACE_BLEND:
1795             RenderBlend( p_vout, p_pic_dst, p_pic );
1796             break;
1797
1798         case DEINTERLACE_X:
1799             RenderX( p_pic_dst, p_pic );
1800             break;
1801     }
1802
1803     picture_CopyProperties( p_pic_dst, p_pic );
1804     p_pic_dst->b_progressive = true;
1805
1806     picture_Release( p_pic );
1807     return p_pic_dst;
1808 }
1809
1810 /*****************************************************************************
1811  * OpenFilter:
1812  *****************************************************************************/
1813 static int OpenFilter( vlc_object_t *p_this )
1814 {
1815     filter_t *p_filter = (filter_t*)p_this;
1816     vout_thread_t *p_vout;
1817     vlc_value_t val;
1818
1819     if( !IsChromaSupported( p_filter->fmt_in.video.i_chroma ) )
1820         return VLC_EGENERIC;
1821
1822     /* Impossible to use VLC_OBJECT_VOUT here because it would be used
1823      * by spu filters */
1824     p_vout = vlc_object_create( p_filter, sizeof(vout_thread_t) );
1825     vlc_object_attach( p_vout, p_filter );
1826     p_filter->p_sys = (filter_sys_t *)p_vout;
1827     p_vout->render.i_chroma = p_filter->fmt_in.video.i_chroma;
1828
1829     config_ChainParse( p_filter, FILTER_CFG_PREFIX, ppsz_filter_options,
1830                    p_filter->p_cfg );
1831     var_Get( p_filter, FILTER_CFG_PREFIX "mode", &val );
1832
1833     var_Create( p_filter, "deinterlace-mode", VLC_VAR_STRING );
1834     var_Set( p_filter, "deinterlace-mode", val );
1835     free( val.psz_string );
1836
1837     if( Create( VLC_OBJECT(p_vout) ) != VLC_SUCCESS )
1838     {
1839         vlc_object_detach( p_vout );
1840         vlc_object_release( p_vout );
1841         return VLC_EGENERIC;
1842     }
1843
1844     video_format_t fmt;
1845     GetOutputFormat( p_vout, &fmt, &p_filter->fmt_in.video );
1846     if( !p_filter->b_allow_fmt_out_change &&
1847         ( fmt.i_chroma != p_filter->fmt_in.video.i_chroma ||
1848           fmt.i_height != p_filter->fmt_in.video.i_height ) )
1849     {
1850         CloseFilter( VLC_OBJECT(p_filter) );
1851         return VLC_EGENERIC;
1852     }
1853     p_filter->fmt_out.video = fmt;
1854     p_filter->fmt_out.i_codec = fmt.i_chroma;
1855     p_filter->pf_video_filter = Deinterlace;
1856
1857     msg_Dbg( p_filter, "deinterlacing" );
1858
1859     return VLC_SUCCESS;
1860 }
1861
1862 /*****************************************************************************
1863  * CloseFilter: clean up the filter
1864  *****************************************************************************/
1865 static void CloseFilter( vlc_object_t *p_this )
1866 {
1867     filter_t *p_filter = (filter_t*)p_this;
1868     vout_thread_t *p_vout = (vout_thread_t *)p_filter->p_sys;
1869
1870     Destroy( VLC_OBJECT(p_vout) );
1871     vlc_object_detach( p_vout );
1872     vlc_object_release( p_vout );
1873 }
1874