1 /*****************************************************************************
2 * effects.c : Effects for the visualization system
3 *****************************************************************************
4 * Copyright (C) 2002-2009 the VideoLAN team
7 * Authors: Clément Stenac <zorglub@via.ecp.fr>
8 * Adrien Maglo <magsoft@videolan.org>
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
23 *****************************************************************************/
25 /*****************************************************************************
27 *****************************************************************************/
32 #include <vlc_common.h>
42 #define BAR_DECREASE_SPEED 5
44 #define GRAD_ANGLE_MIN 0.2
45 #define GRAD_ANGLE_MAX 0.5
46 #define GRAD_INCR 0.01
48 /*****************************************************************************
50 *****************************************************************************/
51 int dummy_Run( visual_effect_t * p_effect, vlc_object_t *p_aout,
52 const block_t * p_buffer , picture_t * p_picture)
54 VLC_UNUSED(p_effect); VLC_UNUSED(p_aout); VLC_UNUSED(p_buffer);
55 VLC_UNUSED(p_picture);
59 /*****************************************************************************
60 * spectrum_Run: spectrum analyser
61 *****************************************************************************/
62 int spectrum_Run(visual_effect_t * p_effect, vlc_object_t *p_aout,
63 const block_t * p_buffer , picture_t * p_picture)
65 spectrum_data *p_data = p_effect->p_data;
66 float p_output[FFT_BUFFER_SIZE]; /* Raw FFT Result */
67 int *height; /* Bar heights */
68 int *peaks; /* Peaks */
69 int *prev_heights; /* Previous bar heights */
70 int i_80_bands; /* number of bands : 80 if true else 20 */
71 int i_nb_bands; /* number of bands : 80 or 20 */
72 int i_band_width; /* width of bands */
73 int i_start; /* first band horizontal position */
74 int i_peak; /* Should we draw peaks ? */
76 /* Horizontal scale for 20-band equalizer */
77 const int xscale1[]={0,1,2,3,4,5,6,7,8,11,15,20,27,
78 36,47,62,82,107,141,184,255};
80 /* Horizontal scale for 80-band equalizer */
82 {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,
83 19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,
84 35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,
85 52,53,54,55,56,57,58,59,61,63,67,72,77,82,87,93,99,105,
86 110,115,121,130,141,152,163,174,185,200,255};
89 fft_state *p_state; /* internal FFT data */
93 int16_t p_dest[FFT_BUFFER_SIZE]; /* Adapted FFT result */
94 int16_t p_buffer1[FFT_BUFFER_SIZE]; /* Buffer on which we perform
95 the FFT (first channel) */
97 float *p_buffl = /* Original buffer */
98 (float*)p_buffer->p_buffer;
100 int16_t *p_buffs; /* int16_t converted buffer */
101 int16_t *p_s16_buff; /* int16_t converted buffer */
103 /* Create p_data if needed */
106 p_effect->p_data = p_data = malloc( sizeof( spectrum_data ) );
110 p_data->peaks = calloc( 80, sizeof(int) );
111 p_data->prev_heights = calloc( 80, sizeof(int) );
113 p_data->i_prev_nb_samples = 0;
114 p_data->p_prev_s16_buff = NULL;
116 peaks = (int *)p_data->peaks;
117 prev_heights = (int *)p_data->prev_heights;
119 /* Allocate the buffer only if the number of samples change */
120 if( p_buffer->i_nb_samples != p_data->i_prev_nb_samples )
122 free( p_data->p_prev_s16_buff );
123 p_data->p_prev_s16_buff = malloc( p_buffer->i_nb_samples *
124 p_effect->i_nb_chans *
126 p_data->i_prev_nb_samples = p_buffer->i_nb_samples;
127 if( !p_data->p_prev_s16_buff )
130 p_buffs = p_s16_buff = p_data->p_prev_s16_buff;
132 i_80_bands = var_InheritInteger( p_aout, "visual-80-bands" );
133 i_peak = var_InheritInteger( p_aout, "visual-peaks" );
146 height = malloc( i_nb_bands * sizeof(int) );
151 /* Convert the buffer to int16_t */
152 /* Pasted from float32tos16.c */
153 for (i = p_buffer->i_nb_samples * p_effect->i_nb_chans; i--; )
155 union { float f; int32_t i; } u;
156 u.f = *p_buffl + 384.0;
157 if(u.i > 0x43c07fff ) * p_buffs = 32767;
158 else if ( u.i < 0x43bf8000 ) *p_buffs = -32768;
159 else *p_buffs = u.i - 0x43c00000;
161 p_buffl++ ; p_buffs++ ;
163 p_state = visual_fft_init();
167 msg_Err(p_aout,"unable to initialize FFT transform");
170 p_buffs = p_s16_buff;
171 for ( i = 0 ; i < FFT_BUFFER_SIZE ; i++)
174 p_buffer1[i] = *p_buffs;
176 p_buffs += p_effect->i_nb_chans;
177 if( p_buffs >= &p_s16_buff[p_buffer->i_nb_samples * p_effect->i_nb_chans] )
178 p_buffs = p_s16_buff;
181 fft_perform( p_buffer1, p_output, p_state);
182 for( i = 0; i< FFT_BUFFER_SIZE ; i++ )
183 p_dest[i] = p_output[i] * ( 2 ^ 16 ) / ( ( FFT_BUFFER_SIZE / 2 * 32768 ) ^ 2 );
185 /* Compute the horizontal position of the first band */
186 i_band_width = floor( p_effect->i_width / i_nb_bands);
187 i_start = ( p_effect->i_width - i_band_width * i_nb_bands ) / 2;
189 for ( i = 0 ; i < i_nb_bands ;i++)
191 /* We search the maximum on one scale */
192 for( j = xscale[i], y = 0; j< xscale[ i + 1 ]; j++ )
197 /* Calculate the height of the bar */
200 height[i] = log( y ) * 30;
201 if( height[i] > 380 )
207 /* Draw the bar now */
209 if( height[i] > peaks[i] )
211 peaks[i] = height[i];
213 else if( peaks[i] > 0 )
215 peaks[i] -= PEAK_SPEED;
216 if( peaks[i] < height[i] )
218 peaks[i] = height[i];
226 /* Decrease the bars if needed */
227 if( height[i] <= prev_heights[i] - BAR_DECREASE_SPEED )
229 height[i] = prev_heights[i];
230 height[i] -= BAR_DECREASE_SPEED;
232 prev_heights[i] = height[i];
234 if( peaks[i] > 0 && i_peak )
236 if( peaks[i] >= p_effect->i_height )
237 peaks[i] = p_effect->i_height - 2;
240 for( j = 0; j < i_band_width - 1; j++ )
242 for( k = 0; k < 3; k ++ )
245 *(p_picture->p[0].p_pixels +
246 ( p_effect->i_height - i_line -1 -k ) *
247 p_picture->p[0].i_pitch +
248 ( i_start + i_band_width*i + j ) )
251 *(p_picture->p[1].p_pixels +
252 ( ( p_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
253 p_picture->p[1].i_pitch +
254 ( ( i_start + i_band_width * i + j ) /2 ) )
257 if( i_line + k - 0x0f > 0 )
259 if ( i_line + k - 0x0f < 0xff )
260 *(p_picture->p[2].p_pixels +
261 ( ( p_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
262 p_picture->p[2].i_pitch +
263 ( ( i_start + i_band_width * i + j ) /2 ) )
264 = ( i_line + k ) - 0x0f;
266 *(p_picture->p[2].p_pixels +
267 ( ( p_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
268 p_picture->p[2].i_pitch +
269 ( ( i_start + i_band_width * i + j ) /2 ) )
274 *(p_picture->p[2].p_pixels +
275 ( ( p_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
276 p_picture->p[2].i_pitch +
277 ( ( i_start + i_band_width * i + j ) /2 ) )
284 if(height[i] > p_effect->i_height)
285 height[i] = floor(p_effect->i_height );
287 for( i_line = 0; i_line < height[i]; i_line++ )
289 for( j = 0 ; j < i_band_width - 1; j++)
291 *(p_picture->p[0].p_pixels +
292 (p_effect->i_height - i_line - 1) *
293 p_picture->p[0].i_pitch +
294 ( i_start + i_band_width*i + j ) ) = 0xff;
296 *(p_picture->p[1].p_pixels +
297 ( ( p_effect->i_height - i_line ) / 2 - 1) *
298 p_picture->p[1].i_pitch +
299 ( ( i_start + i_band_width * i + j ) /2 ) ) = 0x00;
301 if( i_line - 0x0f > 0 )
303 if( i_line - 0x0f < 0xff )
304 *(p_picture->p[2].p_pixels +
305 ( ( p_effect->i_height - i_line ) / 2 - 1) *
306 p_picture->p[2].i_pitch +
307 ( ( i_start + i_band_width * i + j ) /2 ) ) =
310 *(p_picture->p[2].p_pixels +
311 ( ( p_effect->i_height - i_line ) / 2 - 1) *
312 p_picture->p[2].i_pitch +
313 ( ( i_start + i_band_width * i + j ) /2 ) ) =
318 *(p_picture->p[2].p_pixels +
319 ( ( p_effect->i_height - i_line ) / 2 - 1) *
320 p_picture->p[2].i_pitch +
321 ( ( i_start + i_band_width * i + j ) /2 ) ) =
328 fft_close( p_state );
336 /*****************************************************************************
337 * spectrometer_Run: derivative spectrum analysis
338 *****************************************************************************/
339 int spectrometer_Run(visual_effect_t * p_effect, vlc_object_t *p_aout,
340 const block_t * p_buffer , picture_t * p_picture)
342 #define Y(R,G,B) ((uint8_t)( (R * .299) + (G * .587) + (B * .114) ))
343 #define U(R,G,B) ((uint8_t)( (R * -.169) + (G * -.332) + (B * .500) + 128 ))
344 #define V(R,G,B) ((uint8_t)( (R * .500) + (G * -.419) + (B * -.0813) + 128 ))
345 float p_output[FFT_BUFFER_SIZE]; /* Raw FFT Result */
346 int *height; /* Bar heights */
347 int *peaks; /* Peaks */
348 int i_80_bands; /* number of bands : 80 if true else 20 */
349 int i_nb_bands; /* number of bands : 80 or 20 */
350 int i_band_width; /* width of bands */
351 int i_separ; /* Should we let blanks ? */
352 int i_amp; /* Vertical amplification */
353 int i_peak; /* Should we draw peaks ? */
355 int i_original; /* original spectrum graphic routine */
356 int i_rad; /* radius of circle of base of bands */
357 int i_sections; /* sections of spectranalysis */
358 int i_extra_width; /* extra width on peak */
359 int i_peak_height; /* height of peak */
360 int c; /* sentinel container of total spectral sections */
361 double band_sep_angle; /* angled separation between beginning of each band */
362 double section_sep_angle;/* " " ' " ' " " spectrum section */
363 int max_band_length; /* try not to go out of screen */
364 int i_show_base; /* Should we draw base of circle ? */
365 int i_show_bands; /* Should we draw bands ? */
366 //int i_invert_bands; /* do the bands point inward ? */
367 double a; /* for various misc angle situations in radians */
368 int x,y,xx,yy; /* various misc x/y */
369 char color1; /* V slide on a YUV color cube */
370 //char color2; /* U slide.. ? color2 fade color ? */
372 /* Horizontal scale for 20-band equalizer */
373 const int xscale1[]={0,1,2,3,4,5,6,7,8,11,15,20,27,
374 36,47,62,82,107,141,184,255};
376 /* Horizontal scale for 80-band equalizer */
377 const int xscale2[] =
378 {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,
379 19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,
380 35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,
381 52,53,54,55,56,57,58,59,61,63,67,72,77,82,87,93,99,105,
382 110,115,121,130,141,152,163,174,185,200,255};
384 const double y_scale = 3.60673760222; /* (log 256) */
386 fft_state *p_state; /* internal FFT data */
390 int16_t p_dest[FFT_BUFFER_SIZE]; /* Adapted FFT result */
391 int16_t p_buffer1[FFT_BUFFER_SIZE]; /* Buffer on which we perform
392 the FFT (first channel) */
393 float *p_buffl = /* Original buffer */
394 (float*)p_buffer->p_buffer;
396 int16_t *p_buffs; /* int16_t converted buffer */
397 int16_t *p_s16_buff; /* int16_t converted buffer */
399 /* Create the data struct if needed */
400 spectrometer_data *p_data = p_effect->p_data;
403 p_data = malloc( sizeof(spectrometer_data) );
406 p_data->peaks = calloc( 80, sizeof(int) );
412 p_data->i_prev_nb_samples = 0;
413 p_data->p_prev_s16_buff = NULL;
414 p_effect->p_data = (void*)p_data;
416 peaks = p_data->peaks;
418 /* Allocate the buffer only if the number of samples change */
419 if( p_buffer->i_nb_samples != p_data->i_prev_nb_samples )
421 free( p_data->p_prev_s16_buff );
422 p_data->p_prev_s16_buff = malloc( p_buffer->i_nb_samples *
423 p_effect->i_nb_chans *
425 p_data->i_prev_nb_samples = p_buffer->i_nb_samples;
426 if( !p_data->p_prev_s16_buff )
429 p_buffs = p_s16_buff = p_data->p_prev_s16_buff;
431 i_original = var_InheritInteger( p_aout, "spect-show-original" );
432 i_80_bands = var_InheritInteger( p_aout, "spect-80-bands" );
433 i_separ = var_InheritInteger( p_aout, "spect-separ" );
434 i_amp = var_InheritInteger( p_aout, "spect-amp" );
435 i_peak = var_InheritInteger( p_aout, "spect-show-peaks" );
436 i_show_base = var_InheritInteger( p_aout, "spect-show-base" );
437 i_show_bands = var_InheritInteger( p_aout, "spect-show-bands" );
438 i_rad = var_InheritInteger( p_aout, "spect-radius" );
439 i_sections = var_InheritInteger( p_aout, "spect-sections" );
440 i_extra_width = var_InheritInteger( p_aout, "spect-peak-width" );
441 i_peak_height = var_InheritInteger( p_aout, "spect-peak-height" );
442 color1 = var_InheritInteger( p_aout, "spect-color" );
455 height = malloc( i_nb_bands * sizeof(int) );
459 /* Convert the buffer to int16_t */
460 /* Pasted from float32tos16.c */
461 for (i = p_buffer->i_nb_samples * p_effect->i_nb_chans; i--; )
463 union { float f; int32_t i; } u;
464 u.f = *p_buffl + 384.0;
465 if(u.i > 0x43c07fff ) * p_buffs = 32767;
466 else if ( u.i < 0x43bf8000 ) *p_buffs = -32768;
467 else *p_buffs = u.i - 0x43c00000;
469 p_buffl++ ; p_buffs++ ;
471 p_state = visual_fft_init();
474 msg_Err(p_aout,"unable to initialize FFT transform");
478 p_buffs = p_s16_buff;
479 for ( i = 0 ; i < FFT_BUFFER_SIZE; i++)
482 p_buffer1[i] = *p_buffs;
484 p_buffs += p_effect->i_nb_chans;
485 if( p_buffs >= &p_s16_buff[p_buffer->i_nb_samples * p_effect->i_nb_chans] )
486 p_buffs = p_s16_buff;
488 fft_perform( p_buffer1, p_output, p_state);
489 for(i = 0; i < FFT_BUFFER_SIZE; i++)
491 int sqrti = sqrt(p_output[i]);
492 p_dest[i] = sqrti >> 8;
495 i_nb_bands *= i_sections;
497 for ( i = 0 ; i< i_nb_bands/i_sections ;i++)
499 /* We search the maximum on one scale */
500 for( j = xscale[i] , y=0 ; j< xscale[ i + 1 ] ; j++ )
505 /* Calculate the height of the bar */
506 y >>=7;/* remove some noise */
510 height[i] = logy * y_scale;
519 /* Draw the bar now */
520 i_band_width = floor( p_effect->i_width / (i_nb_bands/i_sections)) ;
522 if( i_amp * height[i] > peaks[i])
524 peaks[i] = i_amp * height[i];
526 else if (peaks[i] > 0 )
528 peaks[i] -= PEAK_SPEED;
529 if( peaks[i] < i_amp * height[i] )
531 peaks[i] = i_amp * height[i];
539 if( i_original != 0 )
541 if( peaks[i] > 0 && i_peak )
543 if( peaks[i] >= p_effect->i_height )
544 peaks[i] = p_effect->i_height - 2;
547 for( j = 0 ; j< i_band_width - i_separ; j++)
549 for( k = 0 ; k< 3 ; k ++)
552 *(p_picture->p[0].p_pixels +
553 (p_effect->i_height - i_line -1 -k ) *
554 p_picture->p[0].i_pitch + (i_band_width*i +j) )
557 *(p_picture->p[1].p_pixels +
558 ( ( p_effect->i_height - i_line ) / 2 -1 -k/2 ) *
559 p_picture->p[1].i_pitch +
560 ( ( i_band_width * i + j ) /2 ) )
563 if( 0x04 * (i_line + k ) - 0x0f > 0 )
565 if ( 0x04 * (i_line + k ) -0x0f < 0xff)
566 *(p_picture->p[2].p_pixels +
567 ( ( p_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
568 p_picture->p[2].i_pitch +
569 ( ( i_band_width * i + j ) /2 ) )
570 = ( 0x04 * ( i_line + k ) ) -0x0f ;
572 *(p_picture->p[2].p_pixels +
573 ( ( p_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
574 p_picture->p[2].i_pitch +
575 ( ( i_band_width * i + j ) /2 ) )
580 *(p_picture->p[2].p_pixels +
581 ( ( p_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
582 p_picture->p[2].i_pitch +
583 ( ( i_band_width * i + j ) /2 ) )
589 if(height[i] * i_amp > p_effect->i_height)
590 height[i] = floor(p_effect->i_height / i_amp );
592 for(i_line = 0 ; i_line < i_amp * height[i]; i_line ++ )
594 for( j = 0 ; j< i_band_width - i_separ ; j++)
596 *(p_picture->p[0].p_pixels +
597 (p_effect->i_height - i_line -1) *
598 p_picture->p[0].i_pitch + (i_band_width*i +j) ) = 0xff;
600 *(p_picture->p[1].p_pixels +
601 ( ( p_effect->i_height - i_line ) / 2 -1) *
602 p_picture->p[1].i_pitch +
603 ( ( i_band_width * i + j ) /2 ) ) = 0x00;
605 if( 0x04 * i_line - 0x0f > 0 )
607 if( 0x04 * i_line - 0x0f < 0xff )
608 *(p_picture->p[2].p_pixels +
609 ( ( p_effect->i_height - i_line ) / 2 - 1) *
610 p_picture->p[2].i_pitch +
611 ( ( i_band_width * i + j ) /2 ) ) =
612 ( 0x04 * i_line) -0x0f ;
614 *(p_picture->p[2].p_pixels +
615 ( ( p_effect->i_height - i_line ) / 2 - 1) *
616 p_picture->p[2].i_pitch +
617 ( ( i_band_width * i + j ) /2 ) ) =
622 *(p_picture->p[2].p_pixels +
623 ( ( p_effect->i_height - i_line ) / 2 - 1) *
624 p_picture->p[2].i_pitch +
625 ( ( i_band_width * i + j ) /2 ) ) =
633 band_sep_angle = 360.0 / i_nb_bands;
634 section_sep_angle = 360.0 / i_sections;
635 if( i_peak_height < 1 )
637 max_band_length = p_effect->i_height / 2 - ( i_rad + i_peak_height + 1 );
639 i_band_width = floor( 360 / i_nb_bands - i_separ );
640 if( i_band_width < 1 )
643 for( c = 0 ; c < i_sections ; c++ )
644 for( i = 0 ; i < (i_nb_bands / i_sections) ; i++ )
647 if( peaks[i] > 0 && i_peak )
649 if( peaks[i] >= p_effect->i_height )
650 peaks[i] = p_effect->i_height - 2;
653 /* circular line pattern(so color blend is more visible) */
654 for( j = 0 ; j < i_peak_height ; j++ )
656 //x = p_picture->p[0].i_pitch / 2;
657 x = p_effect->i_width / 2;
658 y = p_effect->i_height / 2;
661 for( k = 0 ; k < (i_band_width + i_extra_width) ; k++ )
665 a = ( (i+1) * band_sep_angle + section_sep_angle * (c+1) + k )
667 x += (double)( cos(a) * (double)( i_line + j + i_rad ) );
668 y += (double)( -sin(a) * (double)( i_line + j + i_rad ) );
670 *(p_picture->p[0].p_pixels + x + y * p_picture->p[0].i_pitch
671 ) = 255;/* Y(R,G,B); */
676 *(p_picture->p[1].p_pixels + x + y * p_picture->p[1].i_pitch
677 ) = 0;/* U(R,G,B); */
679 if( 0x04 * (i_line + k ) - 0x0f > 0 )
681 if ( 0x04 * (i_line + k ) -0x0f < 0xff)
682 *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
683 ) = ( 0x04 * ( i_line + k ) ) -(color1-1);/* -V(R,G,B); */
685 *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
686 ) = 255;/* V(R,G,B); */
690 *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
691 ) = color1;/* V(R,G,B); */
697 if( (height[i] * i_amp) > p_effect->i_height )
698 height[i] = floor( p_effect->i_height / i_amp );
700 /* DO BASE OF BAND (mostly makes a circle) */
701 if( i_show_base != 0 )
703 //x = p_picture->p[0].i_pitch / 2;
704 x = p_effect->i_width / 2;
705 y = p_effect->i_height / 2;
707 a = ( (i+1) * band_sep_angle + section_sep_angle * (c+1) )
709 x += (double)( cos(a) * (double)i_rad );/* newb-forceful casting */
710 y += (double)( -sin(a) * (double)i_rad );
712 *(p_picture->p[0].p_pixels + x + y * p_picture->p[0].i_pitch
713 ) = 255;/* Y(R,G,B); */
718 *(p_picture->p[1].p_pixels + x + y * p_picture->p[1].i_pitch
719 ) = 0;/* U(R,G,B); */
721 if( 0x04 * i_line - 0x0f > 0 )
723 if( 0x04 * i_line -0x0f < 0xff)
724 *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
725 ) = ( 0x04 * i_line) -(color1-1);/* -V(R,G,B); */
727 *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
728 ) = 255;/* V(R,G,B); */
732 *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
733 ) = color1;/* V(R,G,B); */
738 if( i_show_bands != 0 )
739 for( j = 0 ; j < i_band_width ; j++ )
741 x = p_effect->i_width / 2;
742 y = p_effect->i_height / 2;
745 a = ( (i+1) * band_sep_angle + section_sep_angle * (c+1) + j )
748 for( k = (i_rad+1) ; k < max_band_length ; k++ )
750 if( (k-i_rad) > height[i] )
755 x += (double)( cos(a) * (double)k );/* newbed! */
756 y += (double)( -sin(a) * (double)k );
758 *(p_picture->p[0].p_pixels + x + y * p_picture->p[0].i_pitch
764 *(p_picture->p[1].p_pixels + x + y * p_picture->p[1].i_pitch
767 if( 0x04 * i_line - 0x0f > 0 )
769 if ( 0x04 * i_line -0x0f < 0xff)
770 *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
771 ) = ( 0x04 * i_line) -(color1-1);
773 *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
778 *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
785 fft_close( p_state );
793 /*****************************************************************************
794 * scope_Run: scope effect
795 *****************************************************************************/
796 int scope_Run(visual_effect_t * p_effect, vlc_object_t *p_aout,
797 const block_t * p_buffer , picture_t * p_picture)
803 uint8_t *ppp_area[2][3];
805 for( i_index = 0 ; i_index < 2 ; i_index++ )
807 for( int j = 0 ; j < 3 ; j++ )
809 ppp_area[i_index][j] =
810 p_picture->p[j].p_pixels + i_index * p_picture->p[j].i_lines
811 / 2 * p_picture->p[j].i_pitch;
815 for( i_index = 0, p_sample = (float *)p_buffer->p_buffer;
816 i_index < __MIN( p_effect->i_width, (int)p_buffer->i_nb_samples );
822 i_value = p_sample[p_effect->i_idx_left] * 127;
824 + p_picture->p[0].i_pitch * i_index / p_effect->i_width
825 + p_picture->p[0].i_lines * i_value / 512
826 * p_picture->p[0].i_pitch) = 0xbf;
828 + p_picture->p[1].i_pitch * i_index / p_effect->i_width
829 + p_picture->p[1].i_lines * i_value / 512
830 * p_picture->p[1].i_pitch) = 0xff;
834 i_value = p_sample[p_effect->i_idx_right] * 127;
836 + p_picture->p[0].i_pitch * i_index / p_effect->i_width
837 + p_picture->p[0].i_lines * i_value / 512
838 * p_picture->p[0].i_pitch) = 0x9f;
840 + p_picture->p[2].i_pitch * i_index / p_effect->i_width
841 + p_picture->p[2].i_lines * i_value / 512
842 * p_picture->p[2].i_pitch) = 0xdd;
844 p_sample += p_effect->i_nb_chans;
850 /*****************************************************************************
851 * vuMeter_Run: vu meter effect
852 *****************************************************************************/
853 int vuMeter_Run(visual_effect_t * p_effect, vlc_object_t *p_aout,
854 const block_t * p_buffer , picture_t * p_picture)
860 /* Compute the peack values */
861 for ( unsigned i = 0 ; i < p_buffer->i_nb_samples; i++ )
863 const float *p_sample = (float *)p_buffer->p_buffer;
866 ch = p_sample[p_effect->i_idx_left] * 256;
870 ch = p_sample[p_effect->i_idx_right] * 256;
874 p_sample += p_effect->i_nb_chans;
877 i_value_l = abs(i_value_l);
878 i_value_r = abs(i_value_r);
880 /* Stay under maximum value admited */
881 if ( i_value_l > 200 * M_PI_2 )
882 i_value_l = 200 * M_PI_2;
883 if ( i_value_r > 200 * M_PI_2 )
884 i_value_r = 200 * M_PI_2;
888 if( !p_effect->p_data )
890 /* Allocate memory to save hand positions */
891 p_effect->p_data = malloc( 2 * sizeof(float) );
892 i_value = p_effect->p_data;
893 i_value[0] = i_value_l;
894 i_value[1] = i_value_r;
898 /* Make the hands go down slowly if the current values are slower
900 i_value = p_effect->p_data;
902 if ( i_value_l > i_value[0] - 6 )
903 i_value[0] = i_value_l;
905 i_value[0] = i_value[0] - 6;
907 if ( i_value_r > i_value[1] - 6 )
908 i_value[1] = i_value_r;
910 i_value[1] = i_value[1] - 6;
917 int start_x = p_effect->i_width / 2 - 120; /* i_width.min = 532 (visual.c) */
919 for ( int j = 0; j < 2; j++ )
921 /* Draw the two scales */
923 teta_grad = GRAD_ANGLE_MIN;
924 for ( teta = -M_PI_4; teta <= M_PI_4; teta = teta + 0.003 )
926 for ( unsigned i = 140; i <= 150; i++ )
928 y = i * cos(teta) + 20;
929 x = i * sin(teta) + start_x + 240 * j;
930 /* Compute the last color for the gradation */
931 if (teta >= teta_grad + GRAD_INCR && teta_grad <= GRAD_ANGLE_MAX)
933 teta_grad = teta_grad + GRAD_INCR;
936 *(p_picture->p[0].p_pixels +
937 (p_picture->p[0].i_lines - y - 1 ) * p_picture->p[0].i_pitch
939 *(p_picture->p[1].p_pixels +
940 (p_picture->p[1].i_lines - y / 2 - 1 ) * p_picture->p[1].i_pitch
942 *(p_picture->p[2].p_pixels +
943 (p_picture->p[2].i_lines - y / 2 - 1 ) * p_picture->p[2].i_pitch
944 + x / 2 ) = 0x4D + k;
948 /* Draw the two hands */
949 teta = (float)i_value[j] / 200 - M_PI_4;
950 for ( int i = 0; i <= 150; i++ )
952 y = i * cos(teta) + 20;
953 x = i * sin(teta) + start_x + 240 * j;
954 *(p_picture->p[0].p_pixels +
955 (p_picture->p[0].i_lines - y - 1 ) * p_picture->p[0].i_pitch
957 *(p_picture->p[1].p_pixels +
958 (p_picture->p[1].i_lines - y / 2 - 1 ) * p_picture->p[1].i_pitch
960 *(p_picture->p[2].p_pixels +
961 (p_picture->p[2].i_lines - y / 2 - 1 ) * p_picture->p[2].i_pitch
965 /* Draw the hand bases */
966 for ( teta = -M_PI_2; teta <= M_PI_2 + 0.01; teta = teta + 0.003 )
968 for ( int i = 0; i < 10; i++ )
970 y = i * cos(teta) + 20;
971 x = i * sin(teta) + start_x + 240 * j;
972 *(p_picture->p[0].p_pixels +
973 (p_picture->p[0].i_lines - y - 1 ) * p_picture->p[0].i_pitch
975 *(p_picture->p[1].p_pixels +
976 (p_picture->p[1].i_lines - y / 2 - 1 ) * p_picture->p[1].i_pitch
978 *(p_picture->p[2].p_pixels +
979 (p_picture->p[2].i_lines - y / 2 - 1 ) * p_picture->p[2].i_pitch