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

   1 /*****************************************************************************
   2  * extract.c : Extract RGB components
   3  *****************************************************************************
   4  * Copyright (C) 2000-2006 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Antoine Cellerier <dionoea .t videolan d@t 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 <vlc_common.h>
  33 #include <vlc_plugin.h>
  34 #include <vlc_vout.h>
  35
  36 #include "vlc_filter.h"
  37 #include "filter_picture.h"
  38
  39 #include "math.h"
  40
  41 /*****************************************************************************
  42  * Local prototypes
  43  *****************************************************************************/
  44 static int  Create      ( vlc_object_t * );
  45 static void Destroy     ( vlc_object_t * );
  46
  47 static picture_t *Filter( filter_t *, picture_t * );
  48 static int ExtractCallback( vlc_object_t *, char const *,
  49                             vlc_value_t, vlc_value_t, void * );
  50
  51 static void get_red_from_yuv420( picture_t *, picture_t *, int, int, int );
  52 static void get_green_from_yuv420( picture_t *, picture_t *, int, int, int );
  53 static void get_blue_from_yuv420( picture_t *, picture_t *, int, int, int );
  54 static void get_red_from_yuv422( picture_t *, picture_t *, int, int, int );
  55 static void get_green_from_yuv422( picture_t *, picture_t *, int, int, int );
  56 static void get_blue_from_yuv422( picture_t *, picture_t *, int, int, int );
  57 static void make_projection_matrix( filter_t *, int color, int *matrix );
  58 static void get_custom_from_yuv420( picture_t *, picture_t *, int, int, int, int * );
  59 static void get_custom_from_yuv422( picture_t *, picture_t *, int, int, int, int * );
  60 static void get_custom_from_packedyuv422( picture_t *, picture_t *, int * );
  61
  62
  63 #define COMPONENT_TEXT N_("RGB component to extract")
  64 #define COMPONENT_LONGTEXT N_("RGB component to extract. 0 for Red, 1 for Green and 2 for Blue.")
  65 #define FILTER_PREFIX "extract-"
  66
  67 static const int pi_component_values[] = { 0xFF0000, 0x00FF00, 0x0000FF };
  68 static const char *const ppsz_component_descriptions[] = {
  69     "Red", "Green", "Blue" };
  70
  71 /*****************************************************************************
  72  * Module descriptor
  73  *****************************************************************************/
  74 vlc_module_begin();
  75     set_description( N_("Extract RGB component video filter") );
  76     set_shortname( N_("Extract" ));
  77     set_category( CAT_VIDEO );
  78     set_subcategory( SUBCAT_VIDEO_VFILTER );
  79     set_capability( "video filter2", 0 );
  80     add_shortcut( "extract" );
  81
  82     add_integer_with_range( FILTER_PREFIX "component", 0xFF0000, 1, 0xFFFFFF,
  83                  NULL, COMPONENT_TEXT, COMPONENT_LONGTEXT, false );
  84         change_integer_list( pi_component_values, ppsz_component_descriptions, 0 );
  85
  86     set_callbacks( Create, Destroy );
  87 vlc_module_end();
  88
  89 static const char *const ppsz_filter_options[] = {
  90     "component", NULL
  91 };
  92
  93 enum { RED=0xFF0000, GREEN=0x00FF00, BLUE=0x0000FF };
  94 struct filter_sys_t
  95 {
  96     int i_color;
  97     int *projection_matrix;
  98 };
  99
 100 /*****************************************************************************
 101  * Create
 102  *****************************************************************************/
 103 static int Create( vlc_object_t *p_this )
 104 {
 105     filter_t *p_filter = (filter_t *)p_this;
 106
 107     switch( p_filter->fmt_in.video.i_chroma )
 108     {
 109         case VLC_FOURCC('I','4','2','0'):
 110         case VLC_FOURCC('I','Y','U','V'):
 111         case VLC_FOURCC('J','4','2','0'):
 112         case VLC_FOURCC('Y','V','1','2'):
 113
 114         case VLC_FOURCC('I','4','2','2'):
 115         case VLC_FOURCC('J','4','2','2'):
 116
 117         CASE_PACKED_YUV_422
 118             break;
 119
 120         default:
 121             /* We only want planar YUV 4:2:0 or 4:2:2 */
 122             msg_Err( p_filter, "Unsupported input chroma (%4s)",
 123                      (char*)&(p_filter->fmt_in.video.i_chroma) );
 124             return VLC_EGENERIC;
 125     }
 126
 127     /* Allocate structure */
 128     p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
 129     if( p_filter->p_sys == NULL )
 130         return VLC_ENOMEM;
 131     p_filter->p_sys->projection_matrix = malloc( 9 * sizeof( int ) );
 132     if( !p_filter->p_sys->projection_matrix )
 133     {
 134         free( p_filter->p_sys );
 135         return VLC_ENOMEM;
 136     }
 137
 138     config_ChainParse( p_filter, FILTER_PREFIX, ppsz_filter_options,
 139                        p_filter->p_cfg );
 140
 141     p_filter->p_sys->i_color = var_CreateGetIntegerCommand( p_filter,
 142                                                FILTER_PREFIX "component" );
 143     var_AddCallback( p_filter, FILTER_PREFIX "component",
 144                      ExtractCallback, p_filter->p_sys );
 145
 146     /* Matrix won't be used for RED, GREEN or BLUE in planar formats */
 147     make_projection_matrix( p_filter, p_filter->p_sys->i_color,
 148                             p_filter->p_sys->projection_matrix );
 149
 150     p_filter->pf_video_filter = Filter;
 151
 152     return VLC_SUCCESS;
 153 }
 154
 155 /*****************************************************************************
 156  * Destroy
 157  *****************************************************************************/
 158 static void Destroy( vlc_object_t *p_this )
 159 {
 160     filter_t *p_filter = (filter_t *)p_this;
 161
 162     free( p_filter->p_sys->projection_matrix );
 163     free( p_filter->p_sys );
 164 }
 165
 166 /*****************************************************************************
 167  * Render
 168  *****************************************************************************/
 169 static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
 170 {
 171     picture_t *p_outpic;
 172
 173     if( !p_pic ) return NULL;
 174
 175     p_outpic = p_filter->pf_vout_buffer_new( p_filter );
 176     if( !p_outpic )
 177     {
 178         msg_Warn( p_filter, "can't get output picture" );
 179         picture_Release( p_pic );
 180         return NULL;
 181     }
 182
 183     switch( p_pic->format.i_chroma )
 184     {
 185         case VLC_FOURCC('I','4','2','0'):
 186         case VLC_FOURCC('I','Y','U','V'):
 187         case VLC_FOURCC('J','4','2','0'):
 188         case VLC_FOURCC('Y','V','1','2'):
 189             switch( p_filter->p_sys->i_color )
 190             {
 191                 case RED:
 192                     get_red_from_yuv420( p_pic, p_outpic,
 193                                          Y_PLANE, U_PLANE, V_PLANE );
 194                     break;
 195                 case GREEN:
 196                     get_green_from_yuv420( p_pic, p_outpic,
 197                                            Y_PLANE, U_PLANE, V_PLANE );
 198                     break;
 199                 case BLUE:
 200                     get_blue_from_yuv420( p_pic, p_outpic,
 201                                           Y_PLANE, U_PLANE, V_PLANE );
 202                     break;
 203                 default:
 204                     get_custom_from_yuv420( p_pic, p_outpic,
 205                                             Y_PLANE, U_PLANE, V_PLANE,
 206                                             p_filter->p_sys->projection_matrix);
 207                     break;
 208             }
 209             break;
 210
 211         case VLC_FOURCC('I','4','2','2'):
 212         case VLC_FOURCC('J','4','2','2'):
 213             switch( p_filter->p_sys->i_color )
 214             {
 215                 case RED:
 216                     get_red_from_yuv422( p_pic, p_outpic,
 217                                          Y_PLANE, U_PLANE, V_PLANE );
 218                     break;
 219                 case GREEN:
 220                     get_green_from_yuv422( p_pic, p_outpic,
 221                                            Y_PLANE, U_PLANE, V_PLANE );
 222                     break;
 223                 case BLUE:
 224                     get_blue_from_yuv422( p_pic, p_outpic,
 225                                           Y_PLANE, U_PLANE, V_PLANE );
 226                     break;
 227                 default:
 228                     get_custom_from_yuv422( p_pic, p_outpic,
 229                                             Y_PLANE, U_PLANE, V_PLANE,
 230                                             p_filter->p_sys->projection_matrix);
 231                     break;
 232             }
 233             break;
 234
 235         CASE_PACKED_YUV_422
 236             get_custom_from_packedyuv422( p_pic, p_outpic,
 237                                           p_filter->p_sys->projection_matrix );
 238             break;
 239
 240         default:
 241             msg_Warn( p_filter, "Unsupported input chroma (%4s)",
 242                       (char*)&(p_pic->format.i_chroma) );
 243             picture_Release( p_pic );
 244             return NULL;
 245     }
 246
 247     return CopyInfoAndRelease( p_outpic, p_pic );
 248 }
 249
 250 static inline uint8_t crop( int a )
 251 {
 252     if( a < 0 ) return 0;
 253     if( a > 255 ) return 255;
 254     else return (uint8_t)a;
 255 }
 256
 257 #define U 128
 258 #define V 128
 259
 260 static void mmult( double *res, double *a, double *b )
 261 {
 262     int i, j, k;
 263     for( i = 0; i < 3; i++ )
 264     {
 265         for( j = 0; j < 3; j++ )
 266         {
 267             res[ i*3 + j ] = 0.;
 268             for( k = 0; k < 3; k++ )
 269             {
 270                 res[ i*3 + j ] += a[ i*3 + k ] * b[ k*3 + j ];
 271             }
 272         }
 273     }
 274 }
 275 static void make_projection_matrix( filter_t *p_filter, int color, int *matrix )
 276 {
 277     double left_matrix[9] =
 278         {  76.24500,  149.68500,  29.07000,
 279           -43.02765,  -84.47235, 127.50000,
 280           127.50000, -106.76534, -20.73466 };
 281     double right_matrix[9] =
 282         { 257.00392,   0.00000,  360.31950,
 283           257.00392, -88.44438, -183.53583,
 284           257.00392, 455.41095,    0.00000 };
 285     double red = ((double)(( 0xFF0000 & color )>>16))/255.;
 286     double green = ((double)(( 0x00FF00 & color )>>8))/255.;
 287     double blue = ((double)( 0x0000FF & color ))/255.;
 288     double norm = sqrt( red*red + green*green + blue*blue );
 289     red /= norm;
 290     green /= norm;
 291     blue /= norm;
 292     /* XXX: We might still need to norm the rgb_matrix */
 293     double rgb_matrix[9] =
 294         { red*red,    red*green,   red*blue,
 295           red*green,  green*green, green*blue,
 296           red*blue,   green*blue,  blue*blue };
 297     double result1[9];
 298     double result[9];
 299     int i;
 300     msg_Dbg( p_filter, "red: %f", red );
 301     msg_Dbg( p_filter, "green: %f", green );
 302     msg_Dbg( p_filter, "blue: %f", blue );
 303     mmult( result1, rgb_matrix, right_matrix );
 304     mmult( result, left_matrix, result1 );
 305     for( i = 0; i < 9; i++ )
 306     {
 307         matrix[i] = (int)result[i];
 308     }
 309     msg_Dbg( p_filter, "Projection matrix:" );
 310     msg_Dbg( p_filter, "%6d %6d %6d", matrix[0], matrix[1], matrix[2] );
 311     msg_Dbg( p_filter, "%6d %6d %6d", matrix[3], matrix[4], matrix[5] );
 312     msg_Dbg( p_filter, "%6d %6d %6d", matrix[6], matrix[7], matrix[8] );
 313 }
 314
 315 static void get_custom_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
 316                                     int yp, int up, int vp, int *m )
 317 {
 318     uint8_t *y1in = p_inpic->p[yp].p_pixels;
 319     uint8_t *y2in;
 320     uint8_t *uin  = p_inpic->p[up].p_pixels;
 321     uint8_t *vin  = p_inpic->p[vp].p_pixels;
 322
 323     uint8_t *y1out = p_outpic->p[yp].p_pixels;
 324     uint8_t *y2out;
 325     uint8_t *uout  = p_outpic->p[up].p_pixels;
 326     uint8_t *vout  = p_outpic->p[vp].p_pixels;
 327
 328     const int i_pitch = p_inpic->p[yp].i_pitch;
 329     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
 330     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
 331
 332     const int i_uv_pitch = p_inpic->p[up].i_pitch;
 333     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
 334
 335     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
 336     while( y1in < yend )
 337     {
 338         const uint8_t *y1end = y1in + i_visible_pitch;
 339         y2in  = y1in + i_pitch;
 340         y2out = y1out + i_pitch;
 341         while( y1in < y1end )
 342         {
 343             *uout++ = crop( (*y1in * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
 344                       / 65536 + U );
 345             *vout++ = crop( (*y1in * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
 346                       / 65536 + V );
 347             *y1out++ = crop( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
 348                        / 65536 );
 349             *y1out++ = crop( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
 350                        / 65536 );
 351             *y2out++ = crop( (*y2in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
 352                        / 65536 );
 353             *y2out++ = crop( (*y2in++ * m[0] + (*uin++ - U) * m[1] + (*vin++ -V) * m[2])
 354                        / 65536 );
 355         }
 356         y1in  += 2*i_pitch - i_visible_pitch;
 357         y1out += 2*i_pitch - i_visible_pitch;
 358         uin   += i_uv_pitch - i_uv_visible_pitch;
 359         uout  += i_uv_pitch - i_uv_visible_pitch;
 360         vin   += i_uv_pitch - i_uv_visible_pitch;
 361         vout  += i_uv_pitch - i_uv_visible_pitch;
 362     }
 363 }
 364 static void get_custom_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
 365                                     int yp, int up, int vp, int *m )
 366 {
 367     uint8_t *y1in = p_inpic->p[yp].p_pixels;
 368     uint8_t *uin  = p_inpic->p[up].p_pixels;
 369     uint8_t *vin  = p_inpic->p[vp].p_pixels;
 370
 371     uint8_t *y1out = p_outpic->p[yp].p_pixels;
 372     uint8_t *uout  = p_outpic->p[up].p_pixels;
 373     uint8_t *vout  = p_outpic->p[vp].p_pixels;
 374
 375     const int i_pitch = p_inpic->p[yp].i_pitch;
 376     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
 377     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
 378
 379     const int i_uv_pitch = p_inpic->p[up].i_pitch;
 380     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
 381
 382     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
 383     while( y1in < yend )
 384     {
 385         const uint8_t *y1end = y1in + i_visible_pitch;
 386         while( y1in < y1end )
 387         {
 388             *uout++ = crop( (*y1in * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
 389                       / 65536 + U );
 390             *vout++ = crop( (*y1in * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
 391                       / 65536 + V );
 392             *y1out++ = crop( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
 393                        / 65536 );
 394             *y1out++ = crop( (*y1in++ * m[0] + (*uin++ -U) * m[1] + (*vin++ -V) * m[2])
 395                        / 65536 );
 396         }
 397         y1in  += i_pitch - i_visible_pitch;
 398         y1out += i_pitch - i_visible_pitch;
 399         uin   += i_uv_pitch - i_uv_visible_pitch;
 400         uout  += i_uv_pitch - i_uv_visible_pitch;
 401         vin   += i_uv_pitch - i_uv_visible_pitch;
 402         vout  += i_uv_pitch - i_uv_visible_pitch;
 403     }
 404 }
 405
 406 static void get_custom_from_packedyuv422( picture_t *p_inpic,
 407                                           picture_t *p_outpic,
 408                                           int *m )
 409 {
 410     int i_y_offset, i_u_offset, i_v_offset;
 411     if( GetPackedYuvOffsets( p_inpic->format.i_chroma, &i_y_offset,
 412                          &i_u_offset, &i_v_offset ) != VLC_SUCCESS )
 413         return;
 414
 415     uint8_t *yin = p_inpic->p->p_pixels + i_y_offset;
 416     uint8_t *uin = p_inpic->p->p_pixels + i_u_offset;
 417     uint8_t *vin = p_inpic->p->p_pixels + i_v_offset;
 418
 419     uint8_t *yout = p_outpic->p->p_pixels + i_y_offset;
 420     uint8_t *uout = p_outpic->p->p_pixels + i_u_offset;
 421     uint8_t *vout = p_outpic->p->p_pixels + i_v_offset;
 422
 423     const int i_pitch = p_inpic->p->i_pitch;
 424     const int i_visible_pitch = p_inpic->p->i_visible_pitch;
 425     const int i_visible_lines = p_inpic->p->i_visible_lines;
 426
 427     const uint8_t *yend = yin + i_visible_lines * i_pitch;
 428     while( yin < yend )
 429     {
 430         const uint8_t *ylend = yin + i_visible_pitch;
 431         while( yin < ylend )
 432         {
 433             *uout = crop( (*yin * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
 434                       / 65536 + U );
 435             uout += 4;
 436             *vout = crop( (*yin * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
 437                      / 65536 + V );
 438             vout += 4;
 439             *yout = crop( (*yin * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
 440                        / 65536 );
 441             yin  += 2;
 442             yout += 2;
 443             *yout = crop( (*yin * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
 444                        / 65536 );
 445             yin  += 2;
 446             yout += 2;
 447             uin  += 4;
 448             vin  += 4;
 449         }
 450         yin  += i_pitch - i_visible_pitch;
 451         yout += i_pitch - i_visible_pitch;
 452         uin  += i_pitch - i_visible_pitch;
 453         uout += i_pitch - i_visible_pitch;
 454         vin  += i_pitch - i_visible_pitch;
 455         vout += i_pitch - i_visible_pitch;
 456     }
 457 }
 458
 459 static void get_red_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
 460                                  int yp, int up, int vp )
 461 {
 462     uint8_t *y1in = p_inpic->p[yp].p_pixels;
 463     uint8_t *y2in;
 464     uint8_t *vin  = p_inpic->p[vp].p_pixels;
 465
 466     uint8_t *y1out = p_outpic->p[yp].p_pixels;
 467     uint8_t *y2out;
 468     uint8_t *uout  = p_outpic->p[up].p_pixels;
 469     uint8_t *vout  = p_outpic->p[vp].p_pixels;
 470
 471     const int i_pitch = p_inpic->p[yp].i_pitch;
 472     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
 473     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
 474
 475     const int i_uv_pitch = p_inpic->p[up].i_pitch;
 476     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
 477
 478     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
 479     while( y1in < yend )
 480     {
 481         const uint8_t *y1end = y1in + i_visible_pitch;
 482         y2in  = y1in + i_pitch;
 483         y2out = y1out + i_pitch;
 484         while( y1in < y1end )
 485         {
 486 /*
 487 19595   0   27473
 488 -11058  0   -15504
 489 32768   0   45941
 490 */
 491             *uout++ = crop( (*y1in * -11058 + (*vin - V) * -15504)
 492                       / 65536 + U );
 493             *vout++ = crop( (*y1in * 32768 + (*vin - V) * 45941)
 494                       / 65536 + V );
 495             *y1out++ = crop( (*y1in++ * 19595 + (*vin - V) * 27473)
 496                        / 65536 );
 497             *y1out++ = crop( (*y1in++ * 19595 + (*vin - V) * 27473)
 498                        / 65536 );
 499             *y2out++ = crop( (*y2in++ * 19594 + (*vin - V) * 27473)
 500                        / 65536 );
 501             *y2out++ = crop( (*y2in++ * 19594 + (*vin++ - V) * 27473)
 502                        / 65536 );
 503         }
 504         y1in  += 2*i_pitch - i_visible_pitch;
 505         y1out += 2*i_pitch - i_visible_pitch;
 506         uout  += i_uv_pitch - i_uv_visible_pitch;
 507         vin   += i_uv_pitch - i_uv_visible_pitch;
 508         vout  += i_uv_pitch - i_uv_visible_pitch;
 509     }
 510 }
 511
 512 static void get_green_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
 513                                  int yp, int up, int vp )
 514 {
 515     uint8_t *y1in = p_inpic->p[yp].p_pixels;
 516     uint8_t *y2in;
 517     uint8_t *uin  = p_inpic->p[up].p_pixels;
 518     uint8_t *vin  = p_inpic->p[vp].p_pixels;
 519
 520     uint8_t *y1out = p_outpic->p[yp].p_pixels;
 521     uint8_t *y2out;
 522     uint8_t *uout  = p_outpic->p[up].p_pixels;
 523     uint8_t *vout  = p_outpic->p[vp].p_pixels;
 524
 525     const int i_pitch = p_inpic->p[yp].i_pitch;
 526     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
 527     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
 528
 529     const int i_uv_pitch = p_inpic->p[up].i_pitch;
 530     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
 531
 532     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
 533     while( y1in < yend )
 534     {
 535         const uint8_t *y1end = y1in + i_visible_pitch;
 536         y2in  = y1in + i_pitch;
 537         y2out = y1out + i_pitch;
 538         while( y1in < y1end )
 539         {
 540 /*
 541 38470   -13239  -27473
 542 -21710  7471    15504
 543 -27439  9443    19595
 544 */
 545             *uout++ = crop( (*y1in * -21710 + (*uin-U) * 7471 + (*vin-V) * 15504)
 546                       / 65536 + U );
 547             *vout++ = crop( (*y1in * -27439 + (*uin-U) * 9443 + (*vin-V) * 19595)
 548                       / 65536 + V );
 549             *y1out++ = crop( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
 550                        / 65536 );
 551             *y1out++ = crop( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
 552                        / 65536 );
 553             *y2out++ = crop( (*y2in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
 554                        / 65536 );
 555             *y2out++ = crop( (*y2in++ * 38470 + (*uin++ - U) * -13239 + (*vin++ -V) * -27473)
 556                        / 65536 );
 557         }
 558         y1in  += 2*i_pitch - i_visible_pitch;
 559         y1out += 2*i_pitch - i_visible_pitch;
 560         uin   += i_uv_pitch - i_uv_visible_pitch;
 561         uout  += i_uv_pitch - i_uv_visible_pitch;
 562         vin   += i_uv_pitch - i_uv_visible_pitch;
 563         vout  += i_uv_pitch - i_uv_visible_pitch;
 564     }
 565 }
 566
 567 static void get_blue_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
 568                                  int yp, int up, int vp )
 569 {
 570     uint8_t *y1in = p_inpic->p[yp].p_pixels;
 571     uint8_t *y2in;
 572     uint8_t *uin  = p_inpic->p[up].p_pixels;
 573
 574     uint8_t *y1out = p_outpic->p[yp].p_pixels;
 575     uint8_t *y2out;
 576     uint8_t *uout  = p_outpic->p[up].p_pixels;
 577     uint8_t *vout  = p_outpic->p[vp].p_pixels;
 578
 579     const int i_pitch = p_inpic->p[yp].i_pitch;
 580     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
 581     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
 582
 583     const int i_uv_pitch = p_inpic->p[up].i_pitch;
 584     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
 585
 586     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
 587     while( y1in < yend )
 588     {
 589         const uint8_t *y1end = y1in + i_visible_pitch;
 590         y2in  = y1in + i_pitch;
 591         y2out = y1out + i_pitch;
 592         while( y1in < y1end )
 593         {
 594 /*
 595 7471    13239   0
 596 32768   58065   0
 597 -5329   -9443   0
 598 */
 599             *uout++ = crop( (*y1in* 32768 + (*uin - U) * 58065 )
 600                       / 65536 + U );
 601             *vout++ = crop( (*y1in * -5329 + (*uin - U) * -9443 )
 602                       / 65536 + V );
 603             *y1out++ = crop( (*y1in++ * 7471 + (*uin - U) * 13239 )
 604                        / 65536 );
 605             *y1out++ = crop( (*y1in++ * 7471 + (*uin - U) * 13239 )
 606                        / 65536 );
 607             *y2out++ = crop( (*y2in++ * 7471 + (*uin - U) * 13239 )
 608                        / 65536 );
 609             *y2out++ = crop( (*y2in++ * 7471 + (*uin++ - U) * 13239 )
 610                        / 65536 );
 611         }
 612         y1in  += 2*i_pitch - i_visible_pitch;
 613         y1out += 2*i_pitch - i_visible_pitch;
 614         uin   += i_uv_pitch - i_uv_visible_pitch;
 615         uout  += i_uv_pitch - i_uv_visible_pitch;
 616         vout  += i_uv_pitch - i_uv_visible_pitch;
 617     }
 618 }
 619
 620 static void get_red_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
 621                                  int yp, int up, int vp )
 622 {
 623     uint8_t *y1in = p_inpic->p[yp].p_pixels;
 624     uint8_t *vin  = p_inpic->p[vp].p_pixels;
 625
 626     uint8_t *y1out = p_outpic->p[yp].p_pixels;
 627     uint8_t *uout  = p_outpic->p[up].p_pixels;
 628     uint8_t *vout  = p_outpic->p[vp].p_pixels;
 629
 630     const int i_pitch = p_inpic->p[yp].i_pitch;
 631     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
 632     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
 633
 634     const int i_uv_pitch = p_inpic->p[up].i_pitch;
 635     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
 636
 637     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
 638     while( y1in < yend )
 639     {
 640         const uint8_t *y1end = y1in + i_visible_pitch;
 641         while( y1in < y1end )
 642         {
 643 /*
 644 19595   0   27473
 645 -11058  0   -15504
 646 32768   0   45941
 647 */
 648             *uout++ = crop( (*y1in * -11058 + (*vin - V) * -15504)
 649                       / 65536 + U );
 650             *vout++ = crop( (*y1in * 32768 + (*vin - V) * 45941)
 651                       / 65536 + V );
 652             *y1out++ = crop( (*y1in++ * 19595 + (*vin - V) * 27473)
 653                        / 65536 );
 654             *y1out++ = crop( (*y1in++ * 19595 + (*vin++ - V) * 27473)
 655                        / 65536 );
 656         }
 657         y1in  += i_pitch - i_visible_pitch;
 658         y1out += i_pitch - i_visible_pitch;
 659         uout  += i_uv_pitch - i_uv_visible_pitch;
 660         vin   += i_uv_pitch - i_uv_visible_pitch;
 661         vout  += i_uv_pitch - i_uv_visible_pitch;
 662     }
 663 }
 664
 665 static void get_green_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
 666                                    int yp, int up, int vp )
 667 {
 668     uint8_t *y1in = p_inpic->p[yp].p_pixels;
 669     uint8_t *uin  = p_inpic->p[up].p_pixels;
 670     uint8_t *vin  = p_inpic->p[vp].p_pixels;
 671
 672     uint8_t *y1out = p_outpic->p[yp].p_pixels;
 673     uint8_t *uout  = p_outpic->p[up].p_pixels;
 674     uint8_t *vout  = p_outpic->p[vp].p_pixels;
 675
 676     const int i_pitch = p_inpic->p[yp].i_pitch;
 677     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
 678     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
 679
 680     const int i_uv_pitch = p_inpic->p[up].i_pitch;
 681     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
 682
 683     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
 684     while( y1in < yend )
 685     {
 686         const uint8_t *y1end = y1in + i_visible_pitch;
 687         while( y1in < y1end )
 688         {
 689 /*
 690 38470   -13239  -27473
 691 -21710  7471    15504
 692 -27439  9443    19595
 693 */
 694             *uout++ = crop( (*y1in * -21710 + (*uin-U) * 7471 + (*vin-V) * 15504)
 695                       / 65536 + U );
 696             *vout++ = crop( (*y1in * -27439 + (*uin-U) * 9443 + (*vin-V) * 19595)
 697                       / 65536 + V );
 698             *y1out++ = crop( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
 699                        / 65536 );
 700             *y1out++ = crop( (*y1in++ * 38470 + (*uin++-U) * -13239 + (*vin++-V) * -27473)
 701                        / 65536 );
 702         }
 703         y1in  += i_pitch - i_visible_pitch;
 704         y1out += i_pitch - i_visible_pitch;
 705         uin   += i_uv_pitch - i_uv_visible_pitch;
 706         uout  += i_uv_pitch - i_uv_visible_pitch;
 707         vin   += i_uv_pitch - i_uv_visible_pitch;
 708         vout  += i_uv_pitch - i_uv_visible_pitch;
 709     }
 710 }
 711
 712 static void get_blue_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
 713                                  int yp, int up, int vp )
 714 {
 715     uint8_t *y1in = p_inpic->p[yp].p_pixels;
 716     uint8_t *uin  = p_inpic->p[up].p_pixels;
 717
 718     uint8_t *y1out = p_outpic->p[yp].p_pixels;
 719     uint8_t *uout  = p_outpic->p[up].p_pixels;
 720     uint8_t *vout  = p_outpic->p[vp].p_pixels;
 721
 722     const int i_pitch = p_inpic->p[yp].i_pitch;
 723     const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
 724     const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
 725
 726     const int i_uv_pitch = p_inpic->p[up].i_pitch;
 727     const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
 728
 729     const uint8_t *yend = y1in + i_visible_lines * i_pitch;
 730     while( y1in < yend )
 731     {
 732         const uint8_t *y1end = y1in + i_visible_pitch;
 733         while( y1in < y1end )
 734         {
 735 /*
 736 7471    13239   0
 737 32768   58065   0
 738 -5329   -9443   0
 739 */
 740             *uout++ = crop( (*y1in* 32768 + (*uin - U) * 58065 )
 741                       / 65536 + U );
 742             *vout++ = crop( (*y1in * -5329 + (*uin - U) * -9443 )
 743                       / 65536 + V );
 744             *y1out++ = crop( (*y1in++ * 7471 + (*uin - U) * 13239 )
 745                        / 65536 );
 746             *y1out++ = crop( (*y1in++ * 7471 + (*uin++ - U) * 13239 )
 747                        / 65536 );
 748         }
 749         y1in  += i_pitch - i_visible_pitch;
 750         y1out += i_pitch - i_visible_pitch;
 751         uin   += i_uv_pitch - i_uv_visible_pitch;
 752         uout  += i_uv_pitch - i_uv_visible_pitch;
 753         vout  += i_uv_pitch - i_uv_visible_pitch;
 754     }
 755 }
 756
 757 static int ExtractCallback( vlc_object_t *p_this, char const *psz_var,
 758                             vlc_value_t oldval, vlc_value_t newval,
 759                             void *p_data )
 760 {
 761     VLC_UNUSED(oldval);
 762     filter_sys_t *p_sys = (filter_sys_t *)p_data;
 763
 764     if( !strcmp( psz_var, FILTER_PREFIX "component" ) )
 765     {
 766         p_sys->i_color = newval.i_int;
 767         /* Matrix won't be used for RED, GREEN or BLUE in planar formats */
 768         make_projection_matrix( (filter_t *)p_this, p_sys->i_color,
 769                                 p_sys->projection_matrix );
 770     }
 771     else
 772     {
 773         msg_Warn( p_this, "Unknown callback command." );
 774     }
 775     return VLC_SUCCESS;
 776 }