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