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[vlc.git] / modules / video_filter / extract.c
blob5515bfddc8f53f56355137031767bd47c9442ea3
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, NULL )
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 = filter_NewPicture( p_filter );
176 if( !p_outpic )
177 {
178 picture_Release( p_pic );
179 return NULL;
180 }
181
182 switch( p_pic->format.i_chroma )
183 {
184 case VLC_FOURCC('I','4','2','0'):
185 case VLC_FOURCC('I','Y','U','V'):
186 case VLC_FOURCC('J','4','2','0'):
187 case VLC_FOURCC('Y','V','1','2'):
188 switch( p_filter->p_sys->i_color )
189 {
190 case RED:
191 get_red_from_yuv420( p_pic, p_outpic,
192 Y_PLANE, U_PLANE, V_PLANE );
193 break;
194 case GREEN:
195 get_green_from_yuv420( p_pic, p_outpic,
196 Y_PLANE, U_PLANE, V_PLANE );
197 break;
198 case BLUE:
199 get_blue_from_yuv420( p_pic, p_outpic,
200 Y_PLANE, U_PLANE, V_PLANE );
201 break;
202 default:
203 get_custom_from_yuv420( p_pic, p_outpic,
204 Y_PLANE, U_PLANE, V_PLANE,
205 p_filter->p_sys->projection_matrix);
206 break;
207 }
208 break;
209
210 case VLC_FOURCC('I','4','2','2'):
211 case VLC_FOURCC('J','4','2','2'):
212 switch( p_filter->p_sys->i_color )
213 {
214 case RED:
215 get_red_from_yuv422( p_pic, p_outpic,
216 Y_PLANE, U_PLANE, V_PLANE );
217 break;
218 case GREEN:
219 get_green_from_yuv422( p_pic, p_outpic,
220 Y_PLANE, U_PLANE, V_PLANE );
221 break;
222 case BLUE:
223 get_blue_from_yuv422( p_pic, p_outpic,
224 Y_PLANE, U_PLANE, V_PLANE );
225 break;
226 default:
227 get_custom_from_yuv422( p_pic, p_outpic,
228 Y_PLANE, U_PLANE, V_PLANE,
229 p_filter->p_sys->projection_matrix);
230 break;
231 }
232 break;
233
234 CASE_PACKED_YUV_422
235 get_custom_from_packedyuv422( p_pic, p_outpic,
236 p_filter->p_sys->projection_matrix );
237 break;
238
239 default:
240 msg_Warn( p_filter, "Unsupported input chroma (%4s)",
241 (char*)&(p_pic->format.i_chroma) );
242 picture_Release( p_pic );
243 return NULL;
244 }
245
246 return CopyInfoAndRelease( p_outpic, p_pic );
247 }
248
249 static inline uint8_t crop( int a )
250 {
251 if( a < 0 ) return 0;
252 if( a > 255 ) return 255;
253 else return (uint8_t)a;
254 }
255
256 #define U 128
257 #define V 128
258
259 static void mmult( double *res, double *a, double *b )
260 {
261 int i, j, k;
262 for( i = 0; i < 3; i++ )
263 {
264 for( j = 0; j < 3; j++ )
265 {
266 res[ i*3 + j ] = 0.;
267 for( k = 0; k < 3; k++ )
268 {
269 res[ i*3 + j ] += a[ i*3 + k ] * b[ k*3 + j ];
270 }
271 }
272 }
273 }
274 static void make_projection_matrix( filter_t *p_filter, int color, int *matrix )
275 {
276 double left_matrix[9] =
277 { 76.24500, 149.68500, 29.07000,
278 -43.02765, -84.47235, 127.50000,
279 127.50000, -106.76534, -20.73466 };
280 double right_matrix[9] =
281 { 257.00392, 0.00000, 360.31950,
282 257.00392, -88.44438, -183.53583,
283 257.00392, 455.41095, 0.00000 };
284 double red = ((double)(( 0xFF0000 & color )>>16))/255.;
285 double green = ((double)(( 0x00FF00 & color )>>8))/255.;
286 double blue = ((double)( 0x0000FF & color ))/255.;
287 double norm = sqrt( red*red + green*green + blue*blue );
288 red /= norm;
289 green /= norm;
290 blue /= norm;
291 /* XXX: We might still need to norm the rgb_matrix */
292 double rgb_matrix[9] =
293 { red*red, red*green, red*blue,
294 red*green, green*green, green*blue,
295 red*blue, green*blue, blue*blue };
296 double result1[9];
297 double result[9];
298 int i;
299 msg_Dbg( p_filter, "red: %f", red );
300 msg_Dbg( p_filter, "green: %f", green );
301 msg_Dbg( p_filter, "blue: %f", blue );
302 mmult( result1, rgb_matrix, right_matrix );
303 mmult( result, left_matrix, result1 );
304 for( i = 0; i < 9; i++ )
305 {
306 matrix[i] = (int)result[i];
307 }
308 msg_Dbg( p_filter, "Projection matrix:" );
309 msg_Dbg( p_filter, "%6d %6d %6d", matrix[0], matrix[1], matrix[2] );
310 msg_Dbg( p_filter, "%6d %6d %6d", matrix[3], matrix[4], matrix[5] );
311 msg_Dbg( p_filter, "%6d %6d %6d", matrix[6], matrix[7], matrix[8] );
312 }
313
314 static void get_custom_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
315 int yp, int up, int vp, int *m )
316 {
317 uint8_t *y1in = p_inpic->p[yp].p_pixels;
318 uint8_t *y2in;
319 uint8_t *uin = p_inpic->p[up].p_pixels;
320 uint8_t *vin = p_inpic->p[vp].p_pixels;
321
322 uint8_t *y1out = p_outpic->p[yp].p_pixels;
323 uint8_t *y2out;
324 uint8_t *uout = p_outpic->p[up].p_pixels;
325 uint8_t *vout = p_outpic->p[vp].p_pixels;
326
327 const int i_pitch = p_inpic->p[yp].i_pitch;
328 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
329 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
330
331 const int i_uv_pitch = p_inpic->p[up].i_pitch;
332 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
333
334 const uint8_t *yend = y1in + i_visible_lines * i_pitch;
335 while( y1in < yend )
336 {
337 const uint8_t *y1end = y1in + i_visible_pitch;
338 y2in = y1in + i_pitch;
339 y2out = y1out + i_pitch;
340 while( y1in < y1end )
341 {
342 *uout++ = crop( (*y1in * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
343 / 65536 + U );
344 *vout++ = crop( (*y1in * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
345 / 65536 + V );
346 *y1out++ = crop( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
347 / 65536 );
348 *y1out++ = crop( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
349 / 65536 );
350 *y2out++ = crop( (*y2in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
351 / 65536 );
352 *y2out++ = crop( (*y2in++ * m[0] + (*uin++ - U) * m[1] + (*vin++ -V) * m[2])
353 / 65536 );
354 }
355 y1in += 2*i_pitch - i_visible_pitch;
356 y1out += 2*i_pitch - i_visible_pitch;
357 uin += i_uv_pitch - i_uv_visible_pitch;
358 uout += i_uv_pitch - i_uv_visible_pitch;
359 vin += i_uv_pitch - i_uv_visible_pitch;
360 vout += i_uv_pitch - i_uv_visible_pitch;
361 }
362 }
363 static void get_custom_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
364 int yp, int up, int vp, int *m )
365 {
366 uint8_t *y1in = p_inpic->p[yp].p_pixels;
367 uint8_t *uin = p_inpic->p[up].p_pixels;
368 uint8_t *vin = p_inpic->p[vp].p_pixels;
369
370 uint8_t *y1out = p_outpic->p[yp].p_pixels;
371 uint8_t *uout = p_outpic->p[up].p_pixels;
372 uint8_t *vout = p_outpic->p[vp].p_pixels;
373
374 const int i_pitch = p_inpic->p[yp].i_pitch;
375 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
376 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
377
378 const int i_uv_pitch = p_inpic->p[up].i_pitch;
379 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
380
381 const uint8_t *yend = y1in + i_visible_lines * i_pitch;
382 while( y1in < yend )
383 {
384 const uint8_t *y1end = y1in + i_visible_pitch;
385 while( y1in < y1end )
386 {
387 *uout++ = crop( (*y1in * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
388 / 65536 + U );
389 *vout++ = crop( (*y1in * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
390 / 65536 + V );
391 *y1out++ = crop( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
392 / 65536 );
393 *y1out++ = crop( (*y1in++ * m[0] + (*uin++ -U) * m[1] + (*vin++ -V) * m[2])
394 / 65536 );
395 }
396 y1in += i_pitch - i_visible_pitch;
397 y1out += i_pitch - i_visible_pitch;
398 uin += i_uv_pitch - i_uv_visible_pitch;
399 uout += i_uv_pitch - i_uv_visible_pitch;
400 vin += i_uv_pitch - i_uv_visible_pitch;
401 vout += i_uv_pitch - i_uv_visible_pitch;
402 }
403 }
404
405 static void get_custom_from_packedyuv422( picture_t *p_inpic,
406 picture_t *p_outpic,
407 int *m )
408 {
409 int i_y_offset, i_u_offset, i_v_offset;
410 if( GetPackedYuvOffsets( p_inpic->format.i_chroma, &i_y_offset,
411 &i_u_offset, &i_v_offset ) != VLC_SUCCESS )
412 return;
413
414 uint8_t *yin = p_inpic->p->p_pixels + i_y_offset;
415 uint8_t *uin = p_inpic->p->p_pixels + i_u_offset;
416 uint8_t *vin = p_inpic->p->p_pixels + i_v_offset;
417
418 uint8_t *yout = p_outpic->p->p_pixels + i_y_offset;
419 uint8_t *uout = p_outpic->p->p_pixels + i_u_offset;
420 uint8_t *vout = p_outpic->p->p_pixels + i_v_offset;
421
422 const int i_pitch = p_inpic->p->i_pitch;
423 const int i_visible_pitch = p_inpic->p->i_visible_pitch;
424 const int i_visible_lines = p_inpic->p->i_visible_lines;
425
426 const uint8_t *yend = yin + i_visible_lines * i_pitch;
427 while( yin < yend )
428 {
429 const uint8_t *ylend = yin + i_visible_pitch;
430 while( yin < ylend )
431 {
432 *uout = crop( (*yin * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
433 / 65536 + U );
434 uout += 4;
435 *vout = crop( (*yin * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
436 / 65536 + V );
437 vout += 4;
438 *yout = crop( (*yin * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
439 / 65536 );
440 yin += 2;
441 yout += 2;
442 *yout = crop( (*yin * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
443 / 65536 );
444 yin += 2;
445 yout += 2;
446 uin += 4;
447 vin += 4;
448 }
449 yin += i_pitch - i_visible_pitch;
450 yout += i_pitch - i_visible_pitch;
451 uin += i_pitch - i_visible_pitch;
452 uout += i_pitch - i_visible_pitch;
453 vin += i_pitch - i_visible_pitch;
454 vout += i_pitch - i_visible_pitch;
455 }
456 }
457
458 static void get_red_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
459 int yp, int up, int vp )
460 {
461 uint8_t *y1in = p_inpic->p[yp].p_pixels;
462 uint8_t *y2in;
463 uint8_t *vin = p_inpic->p[vp].p_pixels;
464
465 uint8_t *y1out = p_outpic->p[yp].p_pixels;
466 uint8_t *y2out;
467 uint8_t *uout = p_outpic->p[up].p_pixels;
468 uint8_t *vout = p_outpic->p[vp].p_pixels;
469
470 const int i_pitch = p_inpic->p[yp].i_pitch;
471 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
472 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
473
474 const int i_uv_pitch = p_inpic->p[up].i_pitch;
475 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
476
477 const uint8_t *yend = y1in + i_visible_lines * i_pitch;
478 while( y1in < yend )
479 {
480 const uint8_t *y1end = y1in + i_visible_pitch;
481 y2in = y1in + i_pitch;
482 y2out = y1out + i_pitch;
483 while( y1in < y1end )
484 {
485 /*
486 19595 0 27473
487 -11058 0 -15504
488 32768 0 45941
489 */
490 *uout++ = crop( (*y1in * -11058 + (*vin - V) * -15504)
491 / 65536 + U );
492 *vout++ = crop( (*y1in * 32768 + (*vin - V) * 45941)
493 / 65536 + V );
494 *y1out++ = crop( (*y1in++ * 19595 + (*vin - V) * 27473)
495 / 65536 );
496 *y1out++ = crop( (*y1in++ * 19595 + (*vin - V) * 27473)
497 / 65536 );
498 *y2out++ = crop( (*y2in++ * 19594 + (*vin - V) * 27473)
499 / 65536 );
500 *y2out++ = crop( (*y2in++ * 19594 + (*vin++ - V) * 27473)
501 / 65536 );
502 }
503 y1in += 2*i_pitch - i_visible_pitch;
504 y1out += 2*i_pitch - i_visible_pitch;
505 uout += i_uv_pitch - i_uv_visible_pitch;
506 vin += i_uv_pitch - i_uv_visible_pitch;
507 vout += i_uv_pitch - i_uv_visible_pitch;
508 }
509 }
510
511 static void get_green_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
512 int yp, int up, int vp )
513 {
514 uint8_t *y1in = p_inpic->p[yp].p_pixels;
515 uint8_t *y2in;
516 uint8_t *uin = p_inpic->p[up].p_pixels;
517 uint8_t *vin = p_inpic->p[vp].p_pixels;
518
519 uint8_t *y1out = p_outpic->p[yp].p_pixels;
520 uint8_t *y2out;
521 uint8_t *uout = p_outpic->p[up].p_pixels;
522 uint8_t *vout = p_outpic->p[vp].p_pixels;
523
524 const int i_pitch = p_inpic->p[yp].i_pitch;
525 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
526 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
527
528 const int i_uv_pitch = p_inpic->p[up].i_pitch;
529 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
530
531 const uint8_t *yend = y1in + i_visible_lines * i_pitch;
532 while( y1in < yend )
533 {
534 const uint8_t *y1end = y1in + i_visible_pitch;
535 y2in = y1in + i_pitch;
536 y2out = y1out + i_pitch;
537 while( y1in < y1end )
538 {
539 /*
540 38470 -13239 -27473
541 -21710 7471 15504
542 -27439 9443 19595
543 */
544 *uout++ = crop( (*y1in * -21710 + (*uin-U) * 7471 + (*vin-V) * 15504)
545 / 65536 + U );
546 *vout++ = crop( (*y1in * -27439 + (*uin-U) * 9443 + (*vin-V) * 19595)
547 / 65536 + V );
548 *y1out++ = crop( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
549 / 65536 );
550 *y1out++ = crop( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
551 / 65536 );
552 *y2out++ = crop( (*y2in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
553 / 65536 );
554 *y2out++ = crop( (*y2in++ * 38470 + (*uin++ - U) * -13239 + (*vin++ -V) * -27473)
555 / 65536 );
556 }
557 y1in += 2*i_pitch - i_visible_pitch;
558 y1out += 2*i_pitch - i_visible_pitch;
559 uin += i_uv_pitch - i_uv_visible_pitch;
560 uout += i_uv_pitch - i_uv_visible_pitch;
561 vin += i_uv_pitch - i_uv_visible_pitch;
562 vout += i_uv_pitch - i_uv_visible_pitch;
563 }
564 }
565
566 static void get_blue_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
567 int yp, int up, int vp )
568 {
569 uint8_t *y1in = p_inpic->p[yp].p_pixels;
570 uint8_t *y2in;
571 uint8_t *uin = p_inpic->p[up].p_pixels;
572
573 uint8_t *y1out = p_outpic->p[yp].p_pixels;
574 uint8_t *y2out;
575 uint8_t *uout = p_outpic->p[up].p_pixels;
576 uint8_t *vout = p_outpic->p[vp].p_pixels;
577
578 const int i_pitch = p_inpic->p[yp].i_pitch;
579 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
580 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
581
582 const int i_uv_pitch = p_inpic->p[up].i_pitch;
583 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
584
585 const uint8_t *yend = y1in + i_visible_lines * i_pitch;
586 while( y1in < yend )
587 {
588 const uint8_t *y1end = y1in + i_visible_pitch;
589 y2in = y1in + i_pitch;
590 y2out = y1out + i_pitch;
591 while( y1in < y1end )
592 {
593 /*
594 7471 13239 0
595 32768 58065 0
596 -5329 -9443 0
597 */
598 *uout++ = crop( (*y1in* 32768 + (*uin - U) * 58065 )
599 / 65536 + U );
600 *vout++ = crop( (*y1in * -5329 + (*uin - U) * -9443 )
601 / 65536 + V );
602 *y1out++ = crop( (*y1in++ * 7471 + (*uin - U) * 13239 )
603 / 65536 );
604 *y1out++ = crop( (*y1in++ * 7471 + (*uin - U) * 13239 )
605 / 65536 );
606 *y2out++ = crop( (*y2in++ * 7471 + (*uin - U) * 13239 )
607 / 65536 );
608 *y2out++ = crop( (*y2in++ * 7471 + (*uin++ - U) * 13239 )
609 / 65536 );
610 }
611 y1in += 2*i_pitch - i_visible_pitch;
612 y1out += 2*i_pitch - i_visible_pitch;
613 uin += i_uv_pitch - i_uv_visible_pitch;
614 uout += i_uv_pitch - i_uv_visible_pitch;
615 vout += i_uv_pitch - i_uv_visible_pitch;
616 }
617 }
618
619 static void get_red_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
620 int yp, int up, int vp )
621 {
622 uint8_t *y1in = p_inpic->p[yp].p_pixels;
623 uint8_t *vin = p_inpic->p[vp].p_pixels;
624
625 uint8_t *y1out = p_outpic->p[yp].p_pixels;
626 uint8_t *uout = p_outpic->p[up].p_pixels;
627 uint8_t *vout = p_outpic->p[vp].p_pixels;
628
629 const int i_pitch = p_inpic->p[yp].i_pitch;
630 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
631 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
632
633 const int i_uv_pitch = p_inpic->p[up].i_pitch;
634 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
635
636 const uint8_t *yend = y1in + i_visible_lines * i_pitch;
637 while( y1in < yend )
638 {
639 const uint8_t *y1end = y1in + i_visible_pitch;
640 while( y1in < y1end )
641 {
642 /*
643 19595 0 27473
644 -11058 0 -15504
645 32768 0 45941
646 */
647 *uout++ = crop( (*y1in * -11058 + (*vin - V) * -15504)
648 / 65536 + U );
649 *vout++ = crop( (*y1in * 32768 + (*vin - V) * 45941)
650 / 65536 + V );
651 *y1out++ = crop( (*y1in++ * 19595 + (*vin - V) * 27473)
652 / 65536 );
653 *y1out++ = crop( (*y1in++ * 19595 + (*vin++ - V) * 27473)
654 / 65536 );
655 }
656 y1in += i_pitch - i_visible_pitch;
657 y1out += i_pitch - i_visible_pitch;
658 uout += i_uv_pitch - i_uv_visible_pitch;
659 vin += i_uv_pitch - i_uv_visible_pitch;
660 vout += i_uv_pitch - i_uv_visible_pitch;
661 }
662 }
663
664 static void get_green_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
665 int yp, int up, int vp )
666 {
667 uint8_t *y1in = p_inpic->p[yp].p_pixels;
668 uint8_t *uin = p_inpic->p[up].p_pixels;
669 uint8_t *vin = p_inpic->p[vp].p_pixels;
670
671 uint8_t *y1out = p_outpic->p[yp].p_pixels;
672 uint8_t *uout = p_outpic->p[up].p_pixels;
673 uint8_t *vout = p_outpic->p[vp].p_pixels;
674
675 const int i_pitch = p_inpic->p[yp].i_pitch;
676 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
677 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
678
679 const int i_uv_pitch = p_inpic->p[up].i_pitch;
680 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
681
682 const uint8_t *yend = y1in + i_visible_lines * i_pitch;
683 while( y1in < yend )
684 {
685 const uint8_t *y1end = y1in + i_visible_pitch;
686 while( y1in < y1end )
687 {
688 /*
689 38470 -13239 -27473
690 -21710 7471 15504
691 -27439 9443 19595
692 */
693 *uout++ = crop( (*y1in * -21710 + (*uin-U) * 7471 + (*vin-V) * 15504)
694 / 65536 + U );
695 *vout++ = crop( (*y1in * -27439 + (*uin-U) * 9443 + (*vin-V) * 19595)
696 / 65536 + V );
697 *y1out++ = crop( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
698 / 65536 );
699 *y1out++ = crop( (*y1in++ * 38470 + (*uin++-U) * -13239 + (*vin++-V) * -27473)
700 / 65536 );
701 }
702 y1in += i_pitch - i_visible_pitch;
703 y1out += i_pitch - i_visible_pitch;
704 uin += i_uv_pitch - i_uv_visible_pitch;
705 uout += i_uv_pitch - i_uv_visible_pitch;
706 vin += i_uv_pitch - i_uv_visible_pitch;
707 vout += i_uv_pitch - i_uv_visible_pitch;
708 }
709 }
710
711 static void get_blue_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
712 int yp, int up, int vp )
713 {
714 uint8_t *y1in = p_inpic->p[yp].p_pixels;
715 uint8_t *uin = p_inpic->p[up].p_pixels;
716
717 uint8_t *y1out = p_outpic->p[yp].p_pixels;
718 uint8_t *uout = p_outpic->p[up].p_pixels;
719 uint8_t *vout = p_outpic->p[vp].p_pixels;
720
721 const int i_pitch = p_inpic->p[yp].i_pitch;
722 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
723 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
724
725 const int i_uv_pitch = p_inpic->p[up].i_pitch;
726 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
727
728 const uint8_t *yend = y1in + i_visible_lines * i_pitch;
729 while( y1in < yend )
730 {
731 const uint8_t *y1end = y1in + i_visible_pitch;
732 while( y1in < y1end )
733 {
734 /*
735 7471 13239 0
736 32768 58065 0
737 -5329 -9443 0
738 */
739 *uout++ = crop( (*y1in* 32768 + (*uin - U) * 58065 )
740 / 65536 + U );
741 *vout++ = crop( (*y1in * -5329 + (*uin - U) * -9443 )
742 / 65536 + V );
743 *y1out++ = crop( (*y1in++ * 7471 + (*uin - U) * 13239 )
744 / 65536 );
745 *y1out++ = crop( (*y1in++ * 7471 + (*uin++ - U) * 13239 )
746 / 65536 );
747 }
748 y1in += i_pitch - i_visible_pitch;
749 y1out += i_pitch - i_visible_pitch;
750 uin += i_uv_pitch - i_uv_visible_pitch;
751 uout += i_uv_pitch - i_uv_visible_pitch;
752 vout += i_uv_pitch - i_uv_visible_pitch;
753 }
754 }
755
756 static int ExtractCallback( vlc_object_t *p_this, char const *psz_var,
757 vlc_value_t oldval, vlc_value_t newval,
758 void *p_data )
759 {
760 VLC_UNUSED(oldval);
761 filter_sys_t *p_sys = (filter_sys_t *)p_data;
762
763 if( !strcmp( psz_var, FILTER_PREFIX "component" ) )
764 {
765 p_sys->i_color = newval.i_int;
766 /* Matrix won't be used for RED, GREEN or BLUE in planar formats */
767 make_projection_matrix( (filter_t *)p_this, p_sys->i_color,
768 p_sys->projection_matrix );
769 }
770 else
771 {
772 msg_Warn( p_this, "Unknown callback command." );
773 }
774 return VLC_SUCCESS;
775 }
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