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kwallet: use vlc_memstream
[vlc.git] / modules / video_filter / extract.c
blob43dfde15a39b7e5c14fa7a06a4cab583d4804e3b
1 /*****************************************************************************
2 * extract.c : Extract RGB components
3 *****************************************************************************
4 * Copyright (C) 2000-2006 VLC authors and VideoLAN
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 it
10 * under the terms of the GNU Lesser General Public License as published by
11 * the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public License
20 * along with this program; if not, write to the Free Software Foundation,
21 * 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
35 #include <vlc_filter.h>
36 #include "filter_picture.h"
37
38 #include "math.h"
39
40 /*****************************************************************************
41 * Local prototypes
42 *****************************************************************************/
43 static int Create ( vlc_object_t * );
44 static void Destroy ( vlc_object_t * );
45
46 static picture_t *Filter( filter_t *, picture_t * );
47 static int ExtractCallback( vlc_object_t *, char const *,
48 vlc_value_t, vlc_value_t, void * );
49
50 static void get_red_from_yuv420( picture_t *, picture_t *, int, int, int );
51 static void get_green_from_yuv420( picture_t *, picture_t *, int, int, int );
52 static void get_blue_from_yuv420( picture_t *, picture_t *, int, int, int );
53 static void get_red_from_yuv422( picture_t *, picture_t *, int, int, int );
54 static void get_green_from_yuv422( picture_t *, picture_t *, int, int, int );
55 static void get_blue_from_yuv422( picture_t *, picture_t *, int, int, int );
56 static void make_projection_matrix( filter_t *, int color, int *matrix );
57 static void get_custom_from_yuv420( picture_t *, picture_t *, int, int, int, int * );
58 static void get_custom_from_yuv422( picture_t *, picture_t *, int, int, int, int * );
59 static void get_custom_from_packedyuv422( picture_t *, picture_t *, int * );
60
61
62 #define COMPONENT_TEXT N_("RGB component to extract")
63 #define COMPONENT_LONGTEXT N_("RGB component to extract. 0 for Red, 1 for Green and 2 for Blue.")
64 #define FILTER_PREFIX "extract-"
65
66 static const int pi_component_values[] = { 0xFF0000, 0x00FF00, 0x0000FF };
67 static const char *const ppsz_component_descriptions[] = {
68 "Red", "Green", "Blue" };
69
70 /*****************************************************************************
71 * Module descriptor
72 *****************************************************************************/
73 vlc_module_begin ()
74 set_description( N_("Extract RGB component video filter") )
75 set_shortname( N_("Extract" ))
76 set_category( CAT_VIDEO )
77 set_subcategory( SUBCAT_VIDEO_VFILTER )
78 set_capability( "video filter", 0 )
79 add_shortcut( "extract" )
80
81 add_integer_with_range( FILTER_PREFIX "component", 0xFF0000, 1, 0xFFFFFF,
82 COMPONENT_TEXT, COMPONENT_LONGTEXT, false )
83 change_integer_list( pi_component_values, ppsz_component_descriptions )
84
85 set_callbacks( Create, Destroy )
86 vlc_module_end ()
87
88 static const char *const ppsz_filter_options[] = {
89 "component", NULL
90 };
91
92 enum { RED=0xFF0000, GREEN=0x00FF00, BLUE=0x0000FF };
93 struct filter_sys_t
94 {
95 vlc_mutex_t lock;
96 int *projection_matrix;
97 uint32_t i_color;
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_CODEC_I420:
110 case VLC_CODEC_J420:
111 case VLC_CODEC_YV12:
112
113 case VLC_CODEC_I422:
114 case VLC_CODEC_J422:
115
116 CASE_PACKED_YUV_422
117 break;
118
119 default:
120 /* We only want planar YUV 4:2:0 or 4:2:2 */
121 msg_Err( p_filter, "Unsupported input chroma (%4.4s)",
122 (char*)&(p_filter->fmt_in.video.i_chroma) );
123 return VLC_EGENERIC;
124 }
125
126 /* Allocate structure */
127 p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
128 if( p_filter->p_sys == NULL )
129 return VLC_ENOMEM;
130 p_filter->p_sys->projection_matrix = malloc( 9 * sizeof( int ) );
131 if( !p_filter->p_sys->projection_matrix )
132 {
133 free( p_filter->p_sys );
134 return VLC_ENOMEM;
135 }
136
137 config_ChainParse( p_filter, FILTER_PREFIX, ppsz_filter_options,
138 p_filter->p_cfg );
139
140 p_filter->p_sys->i_color = var_CreateGetIntegerCommand( p_filter,
141 FILTER_PREFIX "component" );
142 /* Matrix won't be used for RED, GREEN or BLUE in planar formats */
143 make_projection_matrix( p_filter, p_filter->p_sys->i_color,
144 p_filter->p_sys->projection_matrix );
145 vlc_mutex_init( &p_filter->p_sys->lock );
146 var_AddCallback( p_filter, FILTER_PREFIX "component",
147 ExtractCallback, p_filter->p_sys );
148
149 p_filter->pf_video_filter = Filter;
150
151 return VLC_SUCCESS;
152 }
153
154 /*****************************************************************************
155 * Destroy
156 *****************************************************************************/
157 static void Destroy( vlc_object_t *p_this )
158 {
159 filter_t *p_filter = (filter_t *)p_this;
160 filter_sys_t *p_sys = p_filter->p_sys;
161
162 var_DelCallback( p_filter, FILTER_PREFIX "component", ExtractCallback,
163 p_sys );
164 vlc_mutex_destroy( &p_sys->lock );
165 free( p_sys->projection_matrix );
166 free( p_sys );
167 }
168
169 /*****************************************************************************
170 * Render
171 *****************************************************************************/
172 static picture_t *Filter( filter_t *p_filter, picture_t *p_pic )
173 {
174 picture_t *p_outpic;
175 filter_sys_t *p_sys = p_filter->p_sys;
176
177 if( !p_pic ) return NULL;
178
179 p_outpic = filter_NewPicture( p_filter );
180 if( !p_outpic )
181 {
182 picture_Release( p_pic );
183 return NULL;
184 }
185
186 vlc_mutex_lock( &p_sys->lock );
187 switch( p_pic->format.i_chroma )
188 {
189 case VLC_CODEC_I420:
190 case VLC_CODEC_J420:
191 case VLC_CODEC_YV12:
192 switch( p_sys->i_color )
193 {
194 case RED:
195 get_red_from_yuv420( p_pic, p_outpic,
196 Y_PLANE, U_PLANE, V_PLANE );
197 break;
198 case GREEN:
199 get_green_from_yuv420( p_pic, p_outpic,
200 Y_PLANE, U_PLANE, V_PLANE );
201 break;
202 case BLUE:
203 get_blue_from_yuv420( p_pic, p_outpic,
204 Y_PLANE, U_PLANE, V_PLANE );
205 break;
206 default:
207 get_custom_from_yuv420( p_pic, p_outpic,
208 Y_PLANE, U_PLANE, V_PLANE,
209 p_sys->projection_matrix);
210 break;
211 }
212 break;
213
214 case VLC_CODEC_I422:
215 case VLC_CODEC_J422:
216 switch( p_filter->p_sys->i_color )
217 {
218 case RED:
219 get_red_from_yuv422( p_pic, p_outpic,
220 Y_PLANE, U_PLANE, V_PLANE );
221 break;
222 case GREEN:
223 get_green_from_yuv422( p_pic, p_outpic,
224 Y_PLANE, U_PLANE, V_PLANE );
225 break;
226 case BLUE:
227 get_blue_from_yuv422( p_pic, p_outpic,
228 Y_PLANE, U_PLANE, V_PLANE );
229 break;
230 default:
231 get_custom_from_yuv422( p_pic, p_outpic,
232 Y_PLANE, U_PLANE, V_PLANE,
233 p_sys->projection_matrix);
234 break;
235 }
236 break;
237
238 CASE_PACKED_YUV_422
239 get_custom_from_packedyuv422( p_pic, p_outpic,
240 p_sys->projection_matrix );
241 break;
242
243 default:
244 vlc_mutex_unlock( &p_sys->lock );
245 msg_Warn( p_filter, "Unsupported input chroma (%4.4s)",
246 (char*)&(p_pic->format.i_chroma) );
247 picture_Release( p_pic );
248 return NULL;
249 }
250 vlc_mutex_unlock( &p_sys->lock );
251
252 return CopyInfoAndRelease( p_outpic, p_pic );
253 }
254
255 #define U 128
256 #define V 128
257
258 static void mmult( double *res, double *a, double *b )
259 {
260 for( int i = 0; i < 3; i++ )
261 {
262 for( int j = 0; j < 3; j++ )
263 {
264 res[ i*3 + j ] = 0.;
265 for( int k = 0; k < 3; k++ )
266 {
267 res[ i*3 + j ] += a[ i*3 + k ] * b[ k*3 + j ];
268 }
269 }
270 }
271 }
272 static void make_projection_matrix( filter_t *p_filter, int color, int *matrix )
273 {
274 double left_matrix[9] =
275 { 76.24500, 149.68500, 29.07000,
276 -43.02765, -84.47235, 127.50000,
277 127.50000, -106.76534, -20.73466 };
278 double right_matrix[9] =
279 { 257.00392, 0.00000, 360.31950,
280 257.00392, -88.44438, -183.53583,
281 257.00392, 455.41095, 0.00000 };
282 double red = ((double)(( 0xFF0000 & color )>>16))/255.;
283 double green = ((double)(( 0x00FF00 & color )>>8))/255.;
284 double blue = ((double)( 0x0000FF & color ))/255.;
285 double norm = sqrt( red*red + green*green + blue*blue );
286 if( norm > 0 )
287 {
288 red /= norm;
289 green /= norm;
290 blue /= norm;
291 }
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 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( int 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_in_pitch = p_inpic->p[yp].i_pitch;
328 const int i_out_pitch = p_outpic->p[yp].i_pitch;
329
330 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
331 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
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_in_pitch;
335 while( y1in < yend )
336 {
337 const uint8_t *y1end = y1in + i_visible_pitch;
338 y2in = y1in + i_in_pitch;
339 y2out = y1out + i_out_pitch;
340 while( y1in < y1end )
341 {
342 *uout++ = vlc_uint8( (*y1in * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
343 / 65536 + U );
344 *vout++ = vlc_uint8( (*y1in * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
345 / 65536 + V );
346 *y1out++ = vlc_uint8( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
347 / 65536 );
348 *y1out++ = vlc_uint8( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
349 / 65536 );
350 *y2out++ = vlc_uint8( (*y2in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
351 / 65536 );
352 *y2out++ = vlc_uint8( (*y2in++ * m[0] + (*uin++ - U) * m[1] + (*vin++ -V) * m[2])
353 / 65536 );
354 }
355 y1in += 2*i_in_pitch - i_visible_pitch;
356 y1out += 2*i_out_pitch - i_visible_pitch;
357 uin += p_inpic->p[up].i_pitch - i_uv_visible_pitch;
358 uout += p_outpic->p[up].i_pitch - i_uv_visible_pitch;
359 vin += p_inpic->p[vp].i_pitch - i_uv_visible_pitch;
360 vout += p_outpic->p[vp].i_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_in_pitch = p_inpic->p[yp].i_pitch;
375 const int i_out_pitch = p_outpic->p[yp].i_pitch;
376
377 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
378 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
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_in_pitch;
382 while( y1in < yend )
383 {
384 const uint8_t *y1end = y1in + i_visible_pitch;
385 while( y1in < y1end )
386 {
387 *uout++ = vlc_uint8( (*y1in * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
388 / 65536 + U );
389 *vout++ = vlc_uint8( (*y1in * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
390 / 65536 + V );
391 *y1out++ = vlc_uint8( (*y1in++ * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
392 / 65536 );
393 *y1out++ = vlc_uint8( (*y1in++ * m[0] + (*uin++ -U) * m[1] + (*vin++ -V) * m[2])
394 / 65536 );
395 }
396 y1in += i_in_pitch - i_visible_pitch;
397 y1out += i_out_pitch - i_visible_pitch;
398 uin += p_inpic->p[up].i_pitch - i_uv_visible_pitch;
399 uout += p_outpic->p[up].i_pitch - i_uv_visible_pitch;
400 vin += p_inpic->p[vp].i_pitch - i_uv_visible_pitch;
401 vout += p_outpic->p[vp].i_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_in_pitch = p_inpic->p->i_pitch;
423 const int i_out_pitch = p_outpic->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_in_pitch;
428 while( yin < yend )
429 {
430 const uint8_t *ylend = yin + i_visible_pitch;
431 while( yin < ylend )
432 {
433 *uout = vlc_uint8( (*yin * m[3] + (*uin-U) * m[4] + (*vin-V) * m[5])
434 / 65536 + U );
435 uout += 4;
436 *vout = vlc_uint8( (*yin * m[6] + (*uin-U) * m[7] + (*vin-V) * m[8])
437 / 65536 + V );
438 vout += 4;
439 *yout = vlc_uint8( (*yin * m[0] + (*uin-U) * m[1] + (*vin-V) * m[2])
440 / 65536 );
441 yin += 2;
442 yout += 2;
443 *yout = vlc_uint8( (*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_in_pitch - i_visible_pitch;
451 yout += i_out_pitch - i_visible_pitch;
452 uin += i_in_pitch - i_visible_pitch;
453 uout += i_out_pitch - i_visible_pitch;
454 vin += i_in_pitch - i_visible_pitch;
455 vout += i_out_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_in_pitch = p_inpic->p[yp].i_pitch;
472 const int i_out_pitch = p_outpic->p[yp].i_pitch;
473
474 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
475 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
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_in_pitch;
479 while( y1in < yend )
480 {
481 const uint8_t *y1end = y1in + i_visible_pitch;
482 y2in = y1in + i_in_pitch;
483 y2out = y1out + i_out_pitch;
484 while( y1in < y1end )
485 {
486 /*
487 19595 0 27473
488 -11058 0 -15504
489 32768 0 45941
490 */
491 *uout++ = vlc_uint8( (*y1in * -11058 + (*vin - V) * -15504)
492 / 65536 + U );
493 *vout++ = vlc_uint8( (*y1in * 32768 + (*vin - V) * 45941)
494 / 65536 + V );
495 *y1out++ = vlc_uint8( (*y1in++ * 19595 + (*vin - V) * 27473)
496 / 65536 );
497 *y1out++ = vlc_uint8( (*y1in++ * 19595 + (*vin - V) * 27473)
498 / 65536 );
499 *y2out++ = vlc_uint8( (*y2in++ * 19594 + (*vin - V) * 27473)
500 / 65536 );
501 *y2out++ = vlc_uint8( (*y2in++ * 19594 + (*vin++ - V) * 27473)
502 / 65536 );
503 }
504 y1in += 2*i_in_pitch - i_visible_pitch;
505 y1out += 2*i_out_pitch - i_visible_pitch;
506 uout += p_outpic->p[up].i_pitch - i_uv_visible_pitch;
507 vin += p_inpic->p[vp].i_pitch - i_uv_visible_pitch;
508 vout += p_outpic->p[vp].i_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_in_pitch = p_inpic->p[yp].i_pitch;
526 const int i_out_pitch = p_outpic->p[yp].i_pitch;
527
528 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
529 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
530
531 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
532
533 const uint8_t *yend = y1in + i_visible_lines * i_in_pitch;
534 while( y1in < yend )
535 {
536 const uint8_t *y1end = y1in + i_visible_pitch;
537 y2in = y1in + i_in_pitch;
538 y2out = y1out + i_out_pitch;
539 while( y1in < y1end )
540 {
541 /*
542 38470 -13239 -27473
543 -21710 7471 15504
544 -27439 9443 19595
545 */
546 *uout++ = vlc_uint8( (*y1in * -21710 + (*uin-U) * 7471 + (*vin-V) * 15504)
547 / 65536 + U );
548 *vout++ = vlc_uint8( (*y1in * -27439 + (*uin-U) * 9443 + (*vin-V) * 19595)
549 / 65536 + V );
550 *y1out++ = vlc_uint8( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
551 / 65536 );
552 *y1out++ = vlc_uint8( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
553 / 65536 );
554 *y2out++ = vlc_uint8( (*y2in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
555 / 65536 );
556 *y2out++ = vlc_uint8( (*y2in++ * 38470 + (*uin++ - U) * -13239 + (*vin++ -V) * -27473)
557 / 65536 );
558 }
559 y1in += 2*i_in_pitch - i_visible_pitch;
560 y1out += 2*i_out_pitch - i_visible_pitch;
561 uin += p_inpic->p[up].i_pitch - i_uv_visible_pitch;
562 uout += p_outpic->p[up].i_pitch - i_uv_visible_pitch;
563 vin += p_inpic->p[vp].i_pitch - i_uv_visible_pitch;
564 vout += p_outpic->p[vp].i_pitch - i_uv_visible_pitch;
565 }
566 }
567
568 static void get_blue_from_yuv420( picture_t *p_inpic, picture_t *p_outpic,
569 int yp, int up, int vp )
570 {
571 uint8_t *y1in = p_inpic->p[yp].p_pixels;
572 uint8_t *y2in;
573 uint8_t *uin = p_inpic->p[up].p_pixels;
574
575 uint8_t *y1out = p_outpic->p[yp].p_pixels;
576 uint8_t *y2out;
577 uint8_t *uout = p_outpic->p[up].p_pixels;
578 uint8_t *vout = p_outpic->p[vp].p_pixels;
579
580 const int i_in_pitch = p_inpic->p[yp].i_pitch;
581 const int i_out_pitch = p_outpic->p[yp].i_pitch;
582
583 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
584 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
585 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
586
587 const uint8_t *yend = y1in + i_visible_lines * i_in_pitch;
588 while( y1in < yend )
589 {
590 const uint8_t *y1end = y1in + i_visible_pitch;
591 y2in = y1in + i_in_pitch;
592 y2out = y1out + i_out_pitch;
593 while( y1in < y1end )
594 {
595 /*
596 7471 13239 0
597 32768 58065 0
598 -5329 -9443 0
599 */
600 *uout++ = vlc_uint8( (*y1in* 32768 + (*uin - U) * 58065 )
601 / 65536 + U );
602 *vout++ = vlc_uint8( (*y1in * -5329 + (*uin - U) * -9443 )
603 / 65536 + V );
604 *y1out++ = vlc_uint8( (*y1in++ * 7471 + (*uin - U) * 13239 )
605 / 65536 );
606 *y1out++ = vlc_uint8( (*y1in++ * 7471 + (*uin - U) * 13239 )
607 / 65536 );
608 *y2out++ = vlc_uint8( (*y2in++ * 7471 + (*uin - U) * 13239 )
609 / 65536 );
610 *y2out++ = vlc_uint8( (*y2in++ * 7471 + (*uin++ - U) * 13239 )
611 / 65536 );
612 }
613 y1in += 2*i_in_pitch - i_visible_pitch;
614 y1out += 2*i_out_pitch - i_visible_pitch;
615 uin += p_inpic->p[up].i_pitch - i_uv_visible_pitch;
616 uout += p_outpic->p[up].i_pitch - i_uv_visible_pitch;
617 vout += p_inpic->p[vp].i_pitch - i_uv_visible_pitch;
618 }
619 }
620
621 static void get_red_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
622 int yp, int up, int vp )
623 {
624 uint8_t *y1in = p_inpic->p[yp].p_pixels;
625 uint8_t *vin = p_inpic->p[vp].p_pixels;
626
627 uint8_t *y1out = p_outpic->p[yp].p_pixels;
628 uint8_t *uout = p_outpic->p[up].p_pixels;
629 uint8_t *vout = p_outpic->p[vp].p_pixels;
630
631 const int i_in_pitch = p_inpic->p[yp].i_pitch;
632 const int i_out_pitch = p_inpic->p[yp].i_pitch;
633
634 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
635 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
636 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
637
638 const uint8_t *yend = y1in + i_visible_lines * i_in_pitch;
639 while( y1in < yend )
640 {
641 const uint8_t *y1end = y1in + i_visible_pitch;
642 while( y1in < y1end )
643 {
644 /*
645 19595 0 27473
646 -11058 0 -15504
647 32768 0 45941
648 */
649 *uout++ = vlc_uint8( (*y1in * -11058 + (*vin - V) * -15504)
650 / 65536 + U );
651 *vout++ = vlc_uint8( (*y1in * 32768 + (*vin - V) * 45941)
652 / 65536 + V );
653 *y1out++ = vlc_uint8( (*y1in++ * 19595 + (*vin - V) * 27473)
654 / 65536 );
655 *y1out++ = vlc_uint8( (*y1in++ * 19595 + (*vin++ - V) * 27473)
656 / 65536 );
657 }
658 y1in += i_in_pitch - i_visible_pitch;
659 y1out += i_out_pitch - i_visible_pitch;
660 uout += p_outpic->p[up].i_pitch - i_uv_visible_pitch;
661 vin += p_inpic->p[vp].i_pitch - i_uv_visible_pitch;
662 vout += p_outpic->p[vp].i_pitch - i_uv_visible_pitch;
663 }
664 }
665
666 static void get_green_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
667 int yp, int up, int vp )
668 {
669 uint8_t *y1in = p_inpic->p[yp].p_pixels;
670 uint8_t *uin = p_inpic->p[up].p_pixels;
671 uint8_t *vin = p_inpic->p[vp].p_pixels;
672
673 uint8_t *y1out = p_outpic->p[yp].p_pixels;
674 uint8_t *uout = p_outpic->p[up].p_pixels;
675 uint8_t *vout = p_outpic->p[vp].p_pixels;
676
677 const int i_in_pitch = p_inpic->p[yp].i_pitch;
678 const int i_out_pitch = p_outpic->p[yp].i_pitch;
679
680 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
681 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
682 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
683
684 const uint8_t *yend = y1in + i_visible_lines * i_in_pitch;
685 while( y1in < yend )
686 {
687 const uint8_t *y1end = y1in + i_visible_pitch;
688 while( y1in < y1end )
689 {
690 /*
691 38470 -13239 -27473
692 -21710 7471 15504
693 -27439 9443 19595
694 */
695 *uout++ = vlc_uint8( (*y1in * -21710 + (*uin-U) * 7471 + (*vin-V) * 15504)
696 / 65536 + U );
697 *vout++ = vlc_uint8( (*y1in * -27439 + (*uin-U) * 9443 + (*vin-V) * 19595)
698 / 65536 + V );
699 *y1out++ = vlc_uint8( (*y1in++ * 38470 + (*uin-U) * -13239 + (*vin-V) * -27473)
700 / 65536 );
701 *y1out++ = vlc_uint8( (*y1in++ * 38470 + (*uin++-U) * -13239 + (*vin++-V) * -27473)
702 / 65536 );
703 }
704 y1in += i_in_pitch - i_visible_pitch;
705 y1out += i_out_pitch - i_visible_pitch;
706 uin += p_inpic->p[up].i_pitch - i_uv_visible_pitch;
707 uout += p_outpic->p[up].i_pitch - i_uv_visible_pitch;
708 vin += p_inpic->p[vp].i_pitch - i_uv_visible_pitch;
709 vout += p_outpic->p[vp].i_pitch - i_uv_visible_pitch;
710 }
711 }
712
713 static void get_blue_from_yuv422( picture_t *p_inpic, picture_t *p_outpic,
714 int yp, int up, int vp )
715 {
716 uint8_t *y1in = p_inpic->p[yp].p_pixels;
717 uint8_t *uin = p_inpic->p[up].p_pixels;
718
719 uint8_t *y1out = p_outpic->p[yp].p_pixels;
720 uint8_t *uout = p_outpic->p[up].p_pixels;
721 uint8_t *vout = p_outpic->p[vp].p_pixels;
722
723 const int i_in_pitch = p_inpic->p[yp].i_pitch;
724 const int i_out_pitch = p_outpic->p[yp].i_pitch;
725
726 const int i_visible_pitch = p_inpic->p[yp].i_visible_pitch;
727 const int i_visible_lines = p_inpic->p[yp].i_visible_lines;
728 const int i_uv_visible_pitch = p_inpic->p[up].i_visible_pitch;
729
730 const uint8_t *yend = y1in + i_visible_lines * i_in_pitch;
731 while( y1in < yend )
732 {
733 const uint8_t *y1end = y1in + i_visible_pitch;
734 while( y1in < y1end )
735 {
736 /*
737 7471 13239 0
738 32768 58065 0
739 -5329 -9443 0
740 */
741 *uout++ = vlc_uint8( (*y1in* 32768 + (*uin - U) * 58065 )
742 / 65536 + U );
743 *vout++ = vlc_uint8( (*y1in * -5329 + (*uin - U) * -9443 )
744 / 65536 + V );
745 *y1out++ = vlc_uint8( (*y1in++ * 7471 + (*uin - U) * 13239 )
746 / 65536 );
747 *y1out++ = vlc_uint8( (*y1in++ * 7471 + (*uin++ - U) * 13239 )
748 / 65536 );
749 }
750 y1in += i_in_pitch - i_visible_pitch;
751 y1out += i_out_pitch - i_visible_pitch;
752 uin += p_inpic->p[up].i_pitch - i_uv_visible_pitch;
753 uout += p_outpic->p[up].i_pitch - i_uv_visible_pitch;
754 vout += p_outpic->p[vp].i_pitch - i_uv_visible_pitch;
755 }
756 }
757
758 static int ExtractCallback( vlc_object_t *p_this, char const *psz_var,
759 vlc_value_t oldval, vlc_value_t newval,
760 void *p_data )
761 {
762 VLC_UNUSED(oldval);
763 filter_sys_t *p_sys = (filter_sys_t *)p_data;
764
765 vlc_mutex_lock( &p_sys->lock );
766 if( !strcmp( psz_var, FILTER_PREFIX "component" ) )
767 {
768 p_sys->i_color = newval.i_int;
769 /* Matrix won't be used for RED, GREEN or BLUE in planar formats */
770 make_projection_matrix( (filter_t *)p_this, p_sys->i_color,
771 p_sys->projection_matrix );
772 }
773 else
774 {
775 msg_Warn( p_this, "Unknown callback command." );
776 }
777 vlc_mutex_unlock( &p_sys->lock );
778 return VLC_SUCCESS;
779 }
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