1 /*****************************************************************************
2 * adjust.c : Contrast/Hue/Saturation/Brightness video plugin for vlc
3 *****************************************************************************
4 * Copyright (C) 2000-2006 the VideoLAN team
7 * Authors: Simon Latapie <garf@via.ecp.fr>
8 * Antoine Cellerier <dionoea -at- videolan d0t org>
9 * Martin Briza <gamajun@seznam.cz> (SSE)
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * This program is distributed in the hope that it will be useful,
17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 * GNU General Public License for more details.
21 * You should have received a copy of the GNU General Public License
22 * along with this program; if not, write to the Free Software
23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
24 *****************************************************************************/
26 /*****************************************************************************
28 *****************************************************************************/
36 #include <vlc_common.h>
37 #include <vlc_plugin.h>
39 #include <vlc_filter.h>
40 #include "filter_picture.h"
42 #include "adjust_sat_hue.h"
45 # define M_PI 3.14159265358979323846
48 #define eight_times( x ) x x x x x x x x
50 /*****************************************************************************
52 *****************************************************************************/
53 static int Create ( vlc_object_t * );
54 static void Destroy ( vlc_object_t * );
56 static picture_t *FilterPlanar( filter_t *, picture_t * );
57 static picture_t *FilterPacked( filter_t *, picture_t * );
58 static int AdjustCallback( vlc_object_t *p_this, char const *psz_var,
59 vlc_value_t oldval, vlc_value_t newval,
62 /*****************************************************************************
64 *****************************************************************************/
66 #define THRES_TEXT N_("Brightness threshold")
67 #define THRES_LONGTEXT N_("When this mode is enabled, pixels will be " \
68 "shown as black or white. The threshold value will be the brightness " \
70 #define CONT_TEXT N_("Image contrast (0-2)")
71 #define CONT_LONGTEXT N_("Set the image contrast, between 0 and 2. Defaults to 1.")
72 #define HUE_TEXT N_("Image hue (0-360)")
73 #define HUE_LONGTEXT N_("Set the image hue, between 0 and 360. Defaults to 0.")
74 #define SAT_TEXT N_("Image saturation (0-3)")
75 #define SAT_LONGTEXT N_("Set the image saturation, between 0 and 3. Defaults to 1.")
76 #define LUM_TEXT N_("Image brightness (0-2)")
77 #define LUM_LONGTEXT N_("Set the image brightness, between 0 and 2. Defaults to 1.")
78 #define GAMMA_TEXT N_("Image gamma (0-10)")
79 #define GAMMA_LONGTEXT N_("Set the image gamma, between 0.01 and 10. Defaults to 1.")
82 set_description( N_("Image properties filter") )
83 set_shortname( N_("Image adjust" ))
84 set_category( CAT_VIDEO )
85 set_subcategory( SUBCAT_VIDEO_VFILTER )
86 set_capability( "video filter2", 0 )
88 add_float_with_range( "contrast", 1.0, 0.0, 2.0,
89 CONT_TEXT, CONT_LONGTEXT, false )
90 add_float_with_range( "brightness", 1.0, 0.0, 2.0,
91 LUM_TEXT, LUM_LONGTEXT, false )
92 add_integer_with_range( "hue", 0, 0, 360,
93 HUE_TEXT, HUE_LONGTEXT, false )
94 add_float_with_range( "saturation", 1.0, 0.0, 3.0,
95 SAT_TEXT, SAT_LONGTEXT, false )
96 add_float_with_range( "gamma", 1.0, 0.01, 10.0,
97 GAMMA_TEXT, GAMMA_LONGTEXT, false )
99 add_bool( "brightness-threshold", false,
100 THRES_TEXT, THRES_LONGTEXT, false )
102 add_shortcut( "adjust" )
103 set_callbacks( Create, Destroy )
106 static const char *const ppsz_filter_options[] = {
107 "contrast", "brightness", "hue", "saturation", "gamma",
108 "brightness-threshold", NULL
111 /*****************************************************************************
112 * filter_sys_t: adjust filter method descriptor
113 *****************************************************************************/
122 bool b_brightness_threshold;
123 int (* pf_process_sat_hue)( picture_t *, picture_t *, int, int, int,
125 int (* pf_process_sat_hue_clip)( picture_t *, picture_t *, int, int,
129 /*****************************************************************************
130 * Create: allocates adjust video filter
131 *****************************************************************************/
132 static int Create( vlc_object_t *p_this )
134 filter_t *p_filter = (filter_t *)p_this;
137 if( p_filter->fmt_in.video.i_chroma != p_filter->fmt_out.video.i_chroma )
139 msg_Err( p_filter, "Input and output chromas don't match" );
143 /* Allocate structure */
144 p_filter->p_sys = malloc( sizeof( filter_sys_t ) );
145 if( p_filter->p_sys == NULL )
147 p_sys = p_filter->p_sys;
149 /* needed to get options passed in transcode using the
150 * adjust{name=value} syntax */
151 config_ChainParse( p_filter, "", ppsz_filter_options,
154 p_sys->f_contrast = var_CreateGetFloatCommand( p_filter, "contrast" );
155 p_sys->f_brightness = var_CreateGetFloatCommand( p_filter, "brightness" );
156 p_sys->i_hue = var_CreateGetIntegerCommand( p_filter, "hue" );
157 p_sys->f_saturation = var_CreateGetFloatCommand( p_filter, "saturation" );
158 p_sys->f_gamma = var_CreateGetFloatCommand( p_filter, "gamma" );
159 p_sys->b_brightness_threshold =
160 var_CreateGetBoolCommand( p_filter, "brightness-threshold" );
162 /* Choose Planar/Packed function and pointer to a Hue/Saturation processing
164 switch( p_filter->fmt_in.video.i_chroma )
168 p_filter->pf_video_filter = FilterPlanar;
169 p_sys->pf_process_sat_hue_clip = planar_sat_hue_clip_C;
170 p_sys->pf_process_sat_hue = planar_sat_hue_C;
174 /* Packed YUV 4:2:2 */
175 p_filter->pf_video_filter = FilterPacked;
176 p_sys->pf_process_sat_hue_clip = packed_sat_hue_clip_C;
177 p_sys->pf_process_sat_hue = packed_sat_hue_C;
181 msg_Err( p_filter, "Unsupported input chroma (%4.4s)",
182 (char*)&(p_filter->fmt_in.video.i_chroma) );
186 vlc_mutex_init( &p_sys->lock );
187 var_AddCallback( p_filter, "contrast", AdjustCallback, p_sys );
188 var_AddCallback( p_filter, "brightness", AdjustCallback, p_sys );
189 var_AddCallback( p_filter, "hue", AdjustCallback, p_sys );
190 var_AddCallback( p_filter, "saturation", AdjustCallback, p_sys );
191 var_AddCallback( p_filter, "gamma", AdjustCallback, p_sys );
192 var_AddCallback( p_filter, "brightness-threshold",
193 AdjustCallback, p_sys );
198 /*****************************************************************************
199 * Destroy: destroy adjust video filter
200 *****************************************************************************/
201 static void Destroy( vlc_object_t *p_this )
203 filter_t *p_filter = (filter_t *)p_this;
204 filter_sys_t *p_sys = p_filter->p_sys;
206 var_DelCallback( p_filter, "contrast", AdjustCallback, p_sys );
207 var_DelCallback( p_filter, "brightness", AdjustCallback, p_sys );
208 var_DelCallback( p_filter, "hue", AdjustCallback, p_sys );
209 var_DelCallback( p_filter, "saturation", AdjustCallback, p_sys );
210 var_DelCallback( p_filter, "gamma", AdjustCallback, p_sys );
211 var_DelCallback( p_filter, "brightness-threshold",
212 AdjustCallback, p_sys );
214 vlc_mutex_destroy( &p_sys->lock );
218 /*****************************************************************************
219 * Run the filter on a Planar YUV picture
220 *****************************************************************************/
221 static picture_t *FilterPlanar( filter_t *p_filter, picture_t *p_pic )
227 uint8_t *p_in, *p_in_end, *p_line_end;
233 int32_t i_cont, i_lum;
234 int i_sat, i_sin, i_cos, i_x, i_y;
237 filter_sys_t *p_sys = p_filter->p_sys;
239 if( !p_pic ) return NULL;
241 p_outpic = filter_NewPicture( p_filter );
244 picture_Release( p_pic );
249 vlc_mutex_lock( &p_sys->lock );
250 i_cont = (int)( p_sys->f_contrast * 255 );
251 i_lum = (int)( (p_sys->f_brightness - 1.0)*255 );
252 f_hue = (float)( p_sys->i_hue * M_PI / 180 );
253 i_sat = (int)( p_sys->f_saturation * 256 );
254 f_gamma = 1.0 / p_sys->f_gamma;
255 b_thres = p_sys->b_brightness_threshold;
256 vlc_mutex_unlock( &p_sys->lock );
259 * Threshold mode drops out everything about luma, contrast and gamma.
264 /* Contrast is a fast but kludged function, so I put this gap to be
266 i_lum += 128 - i_cont / 2;
268 /* Fill the gamma lookup table */
269 for( i = 0 ; i < 256 ; i++ )
271 pi_gamma[ i ] = clip_uint8_vlc( pow(i / 255.0, f_gamma) * 255.0);
274 /* Fill the luma lookup table */
275 for( i = 0 ; i < 256 ; i++ )
277 pi_luma[ i ] = pi_gamma[clip_uint8_vlc( i_lum + i_cont * i / 256)];
283 * We get luma as threshold value: the higher it is, the darker is
284 * the image. Should I reverse this?
286 for( i = 0 ; i < 256 ; i++ )
288 pi_luma[ i ] = (i < i_lum) ? 0 : 255;
292 * Desaturates image to avoid that strange yellow halo...
301 p_in = p_pic->p[Y_PLANE].p_pixels;
302 p_in_end = p_in + p_pic->p[Y_PLANE].i_visible_lines
303 * p_pic->p[Y_PLANE].i_pitch - 8;
305 p_out = p_outpic->p[Y_PLANE].p_pixels;
307 for( ; p_in < p_in_end ; )
309 p_line_end = p_in + p_pic->p[Y_PLANE].i_visible_pitch - 8;
311 for( ; p_in < p_line_end ; )
313 /* Do 8 pixels at a time */
314 *p_out++ = pi_luma[ *p_in++ ]; *p_out++ = pi_luma[ *p_in++ ];
315 *p_out++ = pi_luma[ *p_in++ ]; *p_out++ = pi_luma[ *p_in++ ];
316 *p_out++ = pi_luma[ *p_in++ ]; *p_out++ = pi_luma[ *p_in++ ];
317 *p_out++ = pi_luma[ *p_in++ ]; *p_out++ = pi_luma[ *p_in++ ];
322 for( ; p_in < p_line_end ; )
324 *p_out++ = pi_luma[ *p_in++ ];
327 p_in += p_pic->p[Y_PLANE].i_pitch
328 - p_pic->p[Y_PLANE].i_visible_pitch;
329 p_out += p_outpic->p[Y_PLANE].i_pitch
330 - p_outpic->p[Y_PLANE].i_visible_pitch;
334 * Do the U and V planes
337 i_sin = sin(f_hue) * 256;
338 i_cos = cos(f_hue) * 256;
340 i_x = ( cos(f_hue) + sin(f_hue) ) * 32768;
341 i_y = ( cos(f_hue) - sin(f_hue) ) * 32768;
345 /* Currently no errors are implemented in the function, if any are added
347 p_sys->pf_process_sat_hue_clip( p_pic, p_outpic, i_sin, i_cos, i_sat,
352 /* Currently no errors are implemented in the function, if any are added
354 p_sys->pf_process_sat_hue( p_pic, p_outpic, i_sin, i_cos, i_sat,
358 return CopyInfoAndRelease( p_outpic, p_pic );
361 /*****************************************************************************
362 * Run the filter on a Packed YUV picture
363 *****************************************************************************/
364 static picture_t *FilterPacked( filter_t *p_filter, picture_t *p_pic )
370 uint8_t *p_in, *p_in_v, *p_in_end, *p_line_end;
371 uint8_t *p_out, *p_out_v;
372 int i_y_offset, i_u_offset, i_v_offset;
374 int i_visible_lines, i_pitch, i_visible_pitch;
379 int32_t i_cont, i_lum;
380 int i_sat, i_sin, i_cos, i_x, i_y;
383 filter_sys_t *p_sys = p_filter->p_sys;
385 if( !p_pic ) return NULL;
387 i_visible_lines = p_pic->p->i_visible_lines;
388 i_pitch = p_pic->p->i_pitch;
389 i_visible_pitch = p_pic->p->i_visible_pitch;
391 if( GetPackedYuvOffsets( p_pic->format.i_chroma, &i_y_offset,
392 &i_u_offset, &i_v_offset ) != VLC_SUCCESS )
394 msg_Warn( p_filter, "Unsupported input chroma (%4.4s)",
395 (char*)&(p_pic->format.i_chroma) );
397 picture_Release( p_pic );
401 p_outpic = filter_NewPicture( p_filter );
404 msg_Warn( p_filter, "can't get output picture" );
406 picture_Release( p_pic );
411 vlc_mutex_lock( &p_sys->lock );
412 i_cont = (int)( p_sys->f_contrast * 255 );
413 i_lum = (int)( (p_sys->f_brightness - 1.0)*255 );
414 f_hue = (float)( p_sys->i_hue * M_PI / 180 );
415 i_sat = (int)( p_sys->f_saturation * 256 );
416 f_gamma = 1.0 / p_sys->f_gamma;
417 b_thres = p_sys->b_brightness_threshold;
418 vlc_mutex_unlock( &p_sys->lock );
421 * Threshold mode drops out everything about luma, contrast and gamma.
426 /* Contrast is a fast but kludged function, so I put this gap to be
428 i_lum += 128 - i_cont / 2;
430 /* Fill the gamma lookup table */
431 for( i = 0 ; i < 256 ; i++ )
433 pi_gamma[ i ] = clip_uint8_vlc( pow(i / 255.0, f_gamma) * 255.0);
436 /* Fill the luma lookup table */
437 for( i = 0 ; i < 256 ; i++ )
439 pi_luma[ i ] = pi_gamma[clip_uint8_vlc( i_lum + i_cont * i / 256)];
445 * We get luma as threshold value: the higher it is, the darker is
446 * the image. Should I reverse this?
448 for( i = 0 ; i < 256 ; i++ )
450 pi_luma[ i ] = (i < i_lum) ? 0 : 255;
454 * Desaturates image to avoid that strange yellow halo...
463 p_in = p_pic->p->p_pixels + i_y_offset;
464 p_in_end = p_in + p_pic->p->i_visible_lines * p_pic->p->i_pitch - 8 * 4;
466 p_out = p_outpic->p->p_pixels + i_y_offset;
468 for( ; p_in < p_in_end ; )
470 p_line_end = p_in + i_visible_pitch - 8 * 4;
472 for( ; p_in < p_line_end ; )
474 /* Do 8 pixels at a time */
475 *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
476 *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
477 *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
478 *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
479 *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
480 *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
481 *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
482 *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
487 for( ; p_in < p_line_end ; )
489 *p_out = pi_luma[ *p_in ]; p_in += 2; p_out += 2;
492 p_in += i_pitch - p_pic->p->i_visible_pitch;
493 p_out += i_pitch - p_outpic->p->i_visible_pitch;
497 * Do the U and V planes
500 p_in = p_pic->p->p_pixels + i_u_offset;
501 p_in_v = p_pic->p->p_pixels + i_v_offset;
502 p_in_end = p_in + i_visible_lines * i_pitch - 8 * 4;
504 p_out = p_outpic->p->p_pixels + i_u_offset;
505 p_out_v = p_outpic->p->p_pixels + i_v_offset;
507 i_sin = sin(f_hue) * 256;
508 i_cos = cos(f_hue) * 256;
510 i_x = ( cos(f_hue) + sin(f_hue) ) * 32768;
511 i_y = ( cos(f_hue) - sin(f_hue) ) * 32768;
515 if ( p_sys->pf_process_sat_hue_clip( p_pic, p_outpic, i_sin, i_cos, i_sat,
516 i_x, i_y ) != VLC_SUCCESS )
518 /* Currently only one error can happen in the function, but if there
519 * will be more of them, this message must go away */
520 msg_Warn( p_filter, "Unsupported input chroma (%4.4s)",
521 (char*)&(p_pic->format.i_chroma) );
522 picture_Release( p_pic );
528 if ( p_sys->pf_process_sat_hue( p_pic, p_outpic, i_sin, i_cos, i_sat,
529 i_x, i_y ) != VLC_SUCCESS )
531 /* Currently only one error can happen in the function, but if there
532 * will be more of them, this message must go away */
533 msg_Warn( p_filter, "Unsupported input chroma (%4.4s)",
534 (char*)&(p_pic->format.i_chroma) );
535 picture_Release( p_pic );
540 return CopyInfoAndRelease( p_outpic, p_pic );
543 static int AdjustCallback( vlc_object_t *p_this, char const *psz_var,
544 vlc_value_t oldval, vlc_value_t newval,
547 VLC_UNUSED(p_this); VLC_UNUSED(oldval);
548 filter_sys_t *p_sys = (filter_sys_t *)p_data;
550 vlc_mutex_lock( &p_sys->lock );
551 if( !strcmp( psz_var, "contrast" ) )
552 p_sys->f_contrast = newval.f_float;
553 else if( !strcmp( psz_var, "brightness" ) )
554 p_sys->f_brightness = newval.f_float;
555 else if( !strcmp( psz_var, "hue" ) )
556 p_sys->i_hue = newval.i_int;
557 else if( !strcmp( psz_var, "saturation" ) )
558 p_sys->f_saturation = newval.f_float;
559 else if( !strcmp( psz_var, "gamma" ) )
560 p_sys->f_gamma = newval.f_float;
561 else if( !strcmp( psz_var, "brightness-threshold" ) )
562 p_sys->b_brightness_threshold = newval.b_bool;
563 vlc_mutex_unlock( &p_sys->lock );