git.sesse.net Git - vlc/blob - modules/visualization/visual/effects.c

   1 /*****************************************************************************
   2  * effects.c : Effects for the visualization system
   3  *****************************************************************************
   4  * Copyright (C) 2002 the VideoLAN team
   5  * $Id$
   6  *
   7  * Authors: Clément Stenac <zorglub@via.ecp.fr>
   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 #ifdef HAVE_CONFIG_H
  28 # include "config.h"
  29 #endif
  30
  31 #include <vlc/vlc.h>
  32 #include <vlc_vout.h>
  33 #include <vlc_aout.h>
  34
  35 #include "visual.h"
  36 #include <math.h>
  37
  38 #include "fft.h"
  39
  40 #define PEAK_SPEED 1
  41
  42 /*****************************************************************************
  43  * dummy_Run
  44  *****************************************************************************/
  45 int dummy_Run( visual_effect_t * p_effect, aout_instance_t *p_aout,
  46                aout_buffer_t * p_buffer , picture_t * p_picture)
  47 {
  48     VLC_UNUSED(p_effect); VLC_UNUSED(p_aout); VLC_UNUSED(p_buffer);
  49     VLC_UNUSED(p_picture);
  50     return 0;
  51 }
  52
  53 /*****************************************************************************
  54  * spectrum_Run: spectrum analyser
  55  *****************************************************************************/
  56 int spectrum_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
  57                  aout_buffer_t * p_buffer , picture_t * p_picture)
  58 {
  59     float p_output[FFT_BUFFER_SIZE];  /* Raw FFT Result  */
  60     int *height;                      /* Bar heights */
  61     int *peaks;                       /* Peaks */
  62     int i_nb_bands;                   /* number of bands */
  63     int i_band_width;                 /* width of bands */
  64     int i_separ;                      /* Should we let blanks ? */
  65     int i_amp;                        /* Vertical amplification */
  66     int i_peak;                       /* Should we draw peaks ? */
  67     char *psz_parse = NULL;           /* Args line */
  68
  69     /* Horizontal scale for 20-band equalizer */
  70     const int xscale1[]={0,1,2,3,4,5,6,7,8,11,15,20,27,
  71                         36,47,62,82,107,141,184,255};
  72
  73     /* Horizontal scale for 80-band equalizer */
  74     const int xscale2[] =
  75     {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,
  76      19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,
  77      35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,
  78      52,53,54,55,56,57,58,59,61,63,67,72,77,82,87,93,99,105,
  79      110,115,121,130,141,152,163,174,185,200,255};
  80     const int *xscale;
  81     const double y_scale =  3.60673760222;  /* (log 256) */
  82
  83     fft_state *p_state;                 /* internal FFT data */
  84
  85     int i , j , y , k;
  86     int i_line;
  87     int16_t p_dest[FFT_BUFFER_SIZE];      /* Adapted FFT result */
  88     int16_t p_buffer1[FFT_BUFFER_SIZE];   /* Buffer on which we perform
  89                                              the FFT (first channel) */
  90
  91     float *p_buffl =                     /* Original buffer */
  92             (float*)p_buffer->p_buffer;
  93
  94     int16_t  *p_buffs;                    /* int16_t converted buffer */
  95     int16_t  *p_s16_buff = NULL;                /* int16_t converted buffer */
  96
  97     p_s16_buff = (int16_t*)malloc(
  98               p_buffer->i_nb_samples * p_effect->i_nb_chans * sizeof(int16_t));
  99
 100     if( !p_s16_buff )
 101     {
 102         msg_Err(p_aout,"out of memory");
 103         return -1;
 104     }
 105
 106     p_buffs = p_s16_buff;
 107     i_nb_bands = config_GetInt ( p_aout, "visual-nbbands" );
 108     i_separ    = config_GetInt( p_aout, "visual-separ" );
 109     i_amp     = config_GetInt ( p_aout, "visual-amp" );
 110     i_peak     = config_GetInt ( p_aout, "visual-peaks" );
 111
 112     if( i_nb_bands == 20)
 113     {
 114         xscale = xscale1;
 115     }
 116     else
 117     {
 118         i_nb_bands = 80;
 119         xscale = xscale2;
 120     }
 121
 122     if( !p_effect->p_data )
 123     {
 124         p_effect->p_data=(void *)malloc(i_nb_bands * sizeof(int) );
 125         if( !p_effect->p_data)
 126         {
 127             msg_Err(p_aout,"out of memory");
 128             return -1;
 129         }
 130         peaks = (int *)p_effect->p_data;
 131         for( i = 0 ; i < i_nb_bands ; i++)
 132         {
 133            peaks[i] = 0;
 134         }
 135
 136     }
 137     else
 138     {
 139         peaks =(int *)p_effect->p_data;
 140     }
 141
 142
 143     height = (int *)malloc( i_nb_bands * sizeof(int) );
 144     if( !height)
 145     {
 146         msg_Err(p_aout,"out of memory");
 147         return -1;
 148     }
 149     /* Convert the buffer to int16_t  */
 150     /* Pasted from float32tos16.c */
 151     for (i = p_buffer->i_nb_samples * p_effect->i_nb_chans; i--; )
 152     {
 153         union { float f; int32_t i; } u;
 154         u.f = *p_buffl + 384.0;
 155         if(u.i >  0x43c07fff ) * p_buffs = 32767;
 156         else if ( u.i < 0x43bf8000 ) *p_buffs = -32768;
 157         else *p_buffs = u.i - 0x43c00000;
 158
 159         p_buffl++ ; p_buffs++ ;
 160     }
 161     p_state  = visual_fft_init();
 162     if( !p_state)
 163     {
 164         msg_Err(p_aout,"unable to initialize FFT transform");
 165         return -1;
 166     }
 167     p_buffs = p_s16_buff;
 168     for ( i = 0 ; i < FFT_BUFFER_SIZE ; i++)
 169     {
 170         p_output[i]    = 0;
 171         p_buffer1[i] = *p_buffs;
 172         p_buffs      = p_buffs + p_effect->i_nb_chans;
 173     }
 174     fft_perform( p_buffer1, p_output, p_state);
 175     for(i= 0; i< FFT_BUFFER_SIZE ; i++ )
 176         p_dest[i] = ( (int) sqrt( p_output [ i + 1 ] ) ) >> 8;
 177
 178     for ( i = 0 ; i< i_nb_bands ;i++)
 179     {
 180         /* We search the maximum on one scale */
 181         for( j = xscale[i] , y=0 ; j< xscale[ i + 1 ] ; j++ )
 182         {
 183             if ( p_dest[j] > y )
 184                  y = p_dest[j];
 185         }
 186         /* Calculate the height of the bar */
 187         y >>=7;/* remove some noise */
 188         if( y != 0)
 189         {
 190             height[i] = (int)log(y)* y_scale;
 191                if(height[i] > 150)
 192                   height[i] = 150;
 193         }
 194         else
 195         {
 196             height[i] = 0 ;
 197         }
 198
 199         /* Draw the bar now */
 200         i_band_width = floor( p_effect->i_width / i_nb_bands) ;
 201
 202         if( i_amp * height[i] > peaks[i])
 203         {
 204             peaks[i] = i_amp * height[i];
 205         }
 206         else if (peaks[i] > 0 )
 207         {
 208             peaks[i] -= PEAK_SPEED;
 209             if( peaks[i] < i_amp * height[i] )
 210             {
 211                 peaks[i] = i_amp * height[i];
 212             }
 213             if( peaks[i] < 0 )
 214             {
 215                 peaks[i] = 0;
 216             }
 217         }
 218
 219         if( peaks[i] > 0 && i_peak )
 220         {
 221             if( peaks[i] >= p_effect->i_height )
 222                 peaks[i] = p_effect->i_height - 2;
 223             i_line = peaks[i];
 224
 225             for( j = 0 ; j< i_band_width - i_separ; j++)
 226             {
 227                for( k = 0 ; k< 3 ; k ++)
 228                {
 229                    /* Draw the peak */
 230                      *(p_picture->p[0].p_pixels +
 231                     (p_picture->p[0].i_lines - i_line -1 -k ) *
 232                      p_picture->p[0].i_pitch + (i_band_width*i +j) )
 233                                     = 0xff;
 234
 235                     *(p_picture->p[1].p_pixels +
 236                      (p_picture->p[1].i_lines - i_line /2 -1 -k/2 ) *
 237                      p_picture->p[1].i_pitch +
 238                     ( ( i_band_width * i + j ) /2  ) )
 239                                     = 0x00;
 240
 241                    if( 0x04 * (i_line + k ) - 0x0f > 0 )
 242                    {
 243                        if ( 0x04 * (i_line + k ) -0x0f < 0xff)
 244                            *(p_picture->p[2].p_pixels  +
 245                             (p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
 246                              p_picture->p[2].i_pitch +
 247                              ( ( i_band_width * i + j ) /2  ) )
 248                                     = ( 0x04 * ( i_line + k ) ) -0x0f ;
 249                        else
 250                            *(p_picture->p[2].p_pixels  +
 251                             (p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
 252                              p_picture->p[2].i_pitch +
 253                              ( ( i_band_width * i + j ) /2  ) )
 254                                     = 0xff;
 255                    }
 256                    else
 257                    {
 258                         *(p_picture->p[2].p_pixels  +
 259                          (p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
 260                          p_picture->p[2].i_pitch +
 261                          ( ( i_band_width * i + j ) /2  ) )
 262                                = 0x10 ;
 263                    }
 264                }
 265             }
 266         }
 267
 268         if(height[i] * i_amp > p_effect->i_height)
 269             height[i] = floor(p_effect->i_height / i_amp );
 270
 271         for(i_line = 0 ; i_line < i_amp * height[i]; i_line ++ )
 272         {
 273             for( j = 0 ; j< i_band_width - i_separ ; j++)
 274             {
 275                *(p_picture->p[0].p_pixels +
 276                  (p_picture->p[0].i_lines - i_line -1) *
 277                   p_picture->p[0].i_pitch + (i_band_width*i +j) ) = 0xff;
 278
 279                 *(p_picture->p[1].p_pixels +
 280                  (p_picture->p[1].i_lines - i_line /2 -1) *
 281                  p_picture->p[1].i_pitch +
 282                  ( ( i_band_width * i + j ) /2  ) ) = 0x00;
 283
 284                if( 0x04 * i_line - 0x0f > 0 )
 285                {
 286                     if( 0x04 * i_line - 0x0f < 0xff )
 287                          *(p_picture->p[2].p_pixels  +
 288                           (p_picture->p[2].i_lines - i_line /2 - 1) *
 289                            p_picture->p[2].i_pitch +
 290                            ( ( i_band_width * i + j ) /2  ) ) =
 291                                ( 0x04 * i_line) -0x0f ;
 292                     else
 293                          *(p_picture->p[2].p_pixels  +
 294                           (p_picture->p[2].i_lines - i_line /2 - 1) *
 295                            p_picture->p[2].i_pitch +
 296                            ( ( i_band_width * i + j ) /2  ) ) =
 297                                        0xff;
 298                }
 299                else
 300                {
 301                     *(p_picture->p[2].p_pixels  +
 302                      (p_picture->p[2].i_lines - i_line /2 - 1) *
 303                      p_picture->p[2].i_pitch +
 304                      ( ( i_band_width * i + j ) /2  ) ) =
 305                             0x10 ;
 306                }
 307             }
 308         }
 309     }
 310
 311     fft_close( p_state );
 312
 313     free( p_s16_buff );
 314     p_s16_buff = NULL;
 315
 316     free( height );
 317     free( psz_parse );
 318
 319     return 0;
 320 }
 321
 322
 323 /*****************************************************************************
 324  * spectrometer_Run: derivative spectrum analysis
 325  *****************************************************************************/
 326 int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
 327                  aout_buffer_t * p_buffer , picture_t * p_picture)
 328 {
 329 #define Y(R,G,B) ((uint8_t)( (R * .299) + (G * .587) + (B * .114) ))
 330 #define U(R,G,B) ((uint8_t)( (R * -.169) + (G * -.332) + (B * .500) + 128 ))
 331 #define V(R,G,B) ((uint8_t)( (R * .500) + (G * -.419) + (B * -.0813) + 128 ))
 332     float p_output[FFT_BUFFER_SIZE];  /* Raw FFT Result  */
 333     int *height;                      /* Bar heights */
 334     int *peaks;                       /* Peaks */
 335     int i_nb_bands;                   /* number of bands */
 336     int i_band_width;                 /* width of bands */
 337     int i_separ;                      /* Should we let blanks ? */
 338     int i_amp;                        /* Vertical amplification */
 339     int i_peak;                       /* Should we draw peaks ? */
 340
 341     int i_original;          /* original spectrum graphic routine */
 342     int i_rad;               /* radius of circle of base of bands */
 343     int i_sections;          /* sections of spectranalysis */
 344     int i_extra_width;       /* extra width on peak */
 345     int i_peak_height;       /* height of peak */
 346     int c;                   /* sentinel container of total spectral sections */
 347     double band_sep_angle;   /* angled separation between beginning of each band */
 348     double section_sep_angle;/* "   "    '     "    '    "     "    spectrum section */
 349     int max_band_length;     /* try not to go out of screen */
 350     int i_show_base;         /* Should we draw base of circle ? */
 351     int i_show_bands;        /* Should we draw bands ? */
 352     //int i_invert_bands;      /* do the bands point inward ? */
 353     double a;                /* for various misc angle situations in radians */
 354     int x,y,xx,yy;           /* various misc x/y */
 355     char color1;             /* V slide on a YUV color cube */
 356     //char color2;             /* U slide.. ?  color2 fade color ? */
 357
 358     char *psz_parse = NULL;           /* Args line */
 359
 360     /* Horizontal scale for 20-band equalizer */
 361     const int xscale1[]={0,1,2,3,4,5,6,7,8,11,15,20,27,
 362                         36,47,62,82,107,141,184,255};
 363
 364     /* Horizontal scale for 80-band equalizer */
 365     const int xscale2[] =
 366     {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,
 367      19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,
 368      35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,
 369      52,53,54,55,56,57,58,59,61,63,67,72,77,82,87,93,99,105,
 370      110,115,121,130,141,152,163,174,185,200,255};
 371     const int *xscale;
 372     const double y_scale =  3.60673760222;  /* (log 256) */
 373
 374     fft_state *p_state;                 /* internal FFT data */
 375
 376     int i , j , k;
 377     int i_line;
 378     int16_t p_dest[FFT_BUFFER_SIZE];      /* Adapted FFT result */
 379     int16_t p_buffer1[FFT_BUFFER_SIZE];   /* Buffer on which we perform
 380                                              the FFT (first channel) */
 381     float *p_buffl =                     /* Original buffer */
 382             (float*)p_buffer->p_buffer;
 383
 384     int16_t  *p_buffs;                    /* int16_t converted buffer */
 385     int16_t  *p_s16_buff = NULL;                /* int16_t converted buffer */
 386
 387     i_line = 0;
 388
 389     p_s16_buff = (int16_t*)malloc(
 390               p_buffer->i_nb_samples * p_effect->i_nb_chans * sizeof(int16_t));
 391
 392     if( !p_s16_buff )
 393     {
 394         msg_Err(p_aout,"out of memory");
 395         return -1;
 396     }
 397
 398     p_buffs = p_s16_buff;
 399     i_original     = config_GetInt ( p_aout, "spect-show-original" );
 400     i_nb_bands     = config_GetInt ( p_aout, "spect-nbbands" );
 401     i_separ        = config_GetInt ( p_aout, "spect-separ" );
 402     i_amp          = config_GetInt ( p_aout, "spect-amp" );
 403     i_peak         = config_GetInt ( p_aout, "spect-show-peaks" );
 404     i_show_base    = config_GetInt ( p_aout, "spect-show-base" );
 405     i_show_bands   = config_GetInt ( p_aout, "spect-show-bands" );
 406     i_rad          = config_GetInt ( p_aout, "spect-radius" );
 407     i_sections     = config_GetInt ( p_aout, "spect-sections" );
 408     i_extra_width  = config_GetInt ( p_aout, "spect-peak-width" );
 409     i_peak_height  = config_GetInt ( p_aout, "spect-peak-height" );
 410     color1         = config_GetInt ( p_aout, "spect-color" );
 411
 412     if( i_nb_bands == 20)
 413     {
 414         xscale = xscale1;
 415     }
 416     else
 417     {
 418         if( i_nb_bands > 80 )
 419             i_nb_bands = 80;
 420         xscale = xscale2;
 421     }
 422
 423     if( !p_effect->p_data )
 424     {
 425         p_effect->p_data=(void *)malloc(i_nb_bands * sizeof(int) );
 426         if( !p_effect->p_data)
 427         {
 428             msg_Err(p_aout,"out of memory");
 429             return -1;
 430         }
 431         peaks = (int *)p_effect->p_data;
 432         for( i = 0 ; i < i_nb_bands ; i++)
 433         {
 434            peaks[i] = 0;
 435         }
 436     }
 437     else
 438     {
 439         peaks =(int *)p_effect->p_data;
 440     }
 441
 442     height = (int *)malloc( i_nb_bands * sizeof(int) );
 443     if( !height)
 444     {
 445         msg_Err(p_aout,"out of memory");
 446         return -1;
 447     }
 448
 449     /* Convert the buffer to int16_t  */
 450     /* Pasted from float32tos16.c */
 451     for (i = p_buffer->i_nb_samples * p_effect->i_nb_chans; i--; )
 452     {
 453         union { float f; int32_t i; } u;
 454         u.f = *p_buffl + 384.0;
 455         if(u.i >  0x43c07fff ) * p_buffs = 32767;
 456         else if ( u.i < 0x43bf8000 ) *p_buffs = -32768;
 457         else *p_buffs = u.i - 0x43c00000;
 458
 459         p_buffl++ ; p_buffs++ ;
 460     }
 461     p_state  = visual_fft_init();
 462     if( !p_state)
 463     {
 464         msg_Err(p_aout,"unable to initialize FFT transform");
 465         return -1;
 466     }
 467     p_buffs = p_s16_buff;
 468     for ( i = 0 ; i < FFT_BUFFER_SIZE ; i++)
 469     {
 470         p_output[i]    = 0;
 471         p_buffer1[i] = *p_buffs;
 472         p_buffs      = p_buffs + p_effect->i_nb_chans;
 473     }
 474     fft_perform( p_buffer1, p_output, p_state);
 475     for(i= 0; i< FFT_BUFFER_SIZE ; i++ )
 476         p_dest[i] = ( (int) sqrt( p_output [ i + 1 ] ) ) >> 8;
 477
 478     i_nb_bands *= i_sections;
 479
 480     for ( i = 0 ; i< i_nb_bands/i_sections ;i++)
 481     {
 482         /* We search the maximum on one scale */
 483         for( j = xscale[i] , y=0 ; j< xscale[ i + 1 ] ; j++ )
 484         {
 485             if ( p_dest[j] > y )
 486                  y = p_dest[j];
 487         }
 488         /* Calculate the height of the bar */
 489         y >>=7;/* remove some noise */
 490         if( y != 0)
 491         {
 492             height[i] = (int)log(y)* y_scale;
 493                if(height[i] > 150)
 494                   height[i] = 150;
 495         }
 496         else
 497         {
 498             height[i] = 0 ;
 499         }
 500
 501         /* Draw the bar now */
 502         i_band_width = floor( p_effect->i_width / (i_nb_bands/i_sections)) ;
 503
 504         if( i_amp * height[i] > peaks[i])
 505         {
 506             peaks[i] = i_amp * height[i];
 507         }
 508         else if (peaks[i] > 0 )
 509         {
 510             peaks[i] -= PEAK_SPEED;
 511             if( peaks[i] < i_amp * height[i] )
 512             {
 513                 peaks[i] = i_amp * height[i];
 514             }
 515             if( peaks[i] < 0 )
 516             {
 517                 peaks[i] = 0;
 518             }
 519         }
 520
 521         if( i_original != 0 )
 522         {
 523         if( peaks[i] > 0 && i_peak )
 524         {
 525             if( peaks[i] >= p_effect->i_height )
 526                 peaks[i] = p_effect->i_height - 2;
 527             i_line = peaks[i];
 528
 529             for( j = 0 ; j< i_band_width - i_separ; j++)
 530             {
 531                for( k = 0 ; k< 3 ; k ++)
 532                {
 533                    //* Draw the peak
 534                      *(p_picture->p[0].p_pixels +
 535                     (p_picture->p[0].i_lines - i_line -1 -k ) *
 536                      p_picture->p[0].i_pitch + (i_band_width*i +j) )
 537                                     = 0xff;
 538
 539                     *(p_picture->p[1].p_pixels +
 540                      (p_picture->p[1].i_lines - i_line /2 -1 -k/2 ) *
 541                      p_picture->p[1].i_pitch +
 542                     ( ( i_band_width * i + j ) /2  ) )
 543                                     = 0x00;
 544
 545                    if( 0x04 * (i_line + k ) - 0x0f > 0 )
 546                    {
 547                        if ( 0x04 * (i_line + k ) -0x0f < 0xff)
 548                            *(p_picture->p[2].p_pixels  +
 549                             (p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
 550                              p_picture->p[2].i_pitch +
 551                              ( ( i_band_width * i + j ) /2  ) )
 552                                     = ( 0x04 * ( i_line + k ) ) -0x0f ;
 553                        else
 554                            *(p_picture->p[2].p_pixels  +
 555                             (p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
 556                              p_picture->p[2].i_pitch +
 557                              ( ( i_band_width * i + j ) /2  ) )
 558                                     = 0xff;
 559                    }
 560                    else
 561                    {
 562                         *(p_picture->p[2].p_pixels  +
 563                          (p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
 564                          p_picture->p[2].i_pitch +
 565                          ( ( i_band_width * i + j ) /2  ) )
 566                                = 0x10 ;
 567                    }
 568                }
 569             }
 570         }
 571         if(height[i] * i_amp > p_effect->i_height)
 572             height[i] = floor(p_effect->i_height / i_amp );
 573
 574         for(i_line = 0 ; i_line < i_amp * height[i]; i_line ++ )
 575         {
 576             for( j = 0 ; j< i_band_width - i_separ ; j++)
 577             {
 578                *(p_picture->p[0].p_pixels +
 579                  (p_picture->p[0].i_lines - i_line -1) *
 580                   p_picture->p[0].i_pitch + (i_band_width*i +j) ) = 0xff;
 581
 582                 *(p_picture->p[1].p_pixels +
 583                  (p_picture->p[1].i_lines - i_line /2 -1) *
 584                  p_picture->p[1].i_pitch +
 585                  ( ( i_band_width * i + j ) /2  ) ) = 0x00;
 586
 587                if( 0x04 * i_line - 0x0f > 0 )
 588                {
 589                     if( 0x04 * i_line - 0x0f < 0xff )
 590                          *(p_picture->p[2].p_pixels  +
 591                           (p_picture->p[2].i_lines - i_line /2 - 1) *
 592                            p_picture->p[2].i_pitch +
 593                            ( ( i_band_width * i + j ) /2  ) ) =
 594                                ( 0x04 * i_line) -0x0f ;
 595                     else
 596                          *(p_picture->p[2].p_pixels  +
 597                           (p_picture->p[2].i_lines - i_line /2 - 1) *
 598                            p_picture->p[2].i_pitch +
 599                            ( ( i_band_width * i + j ) /2  ) ) =
 600                                        0xff;
 601                }
 602                else
 603                {
 604                     *(p_picture->p[2].p_pixels  +
 605                      (p_picture->p[2].i_lines - i_line /2 - 1) *
 606                      p_picture->p[2].i_pitch +
 607                      ( ( i_band_width * i + j ) /2  ) ) =
 608                             0x10 ;
 609                }
 610             }
 611         }
 612         }
 613     }
 614
 615     band_sep_angle = 360.0 / i_nb_bands;
 616     section_sep_angle = 360.0 / i_sections;
 617     if( i_peak_height < 1 )
 618         i_peak_height = 1;
 619     max_band_length = p_picture->p[0].i_lines / 2 - ( i_rad + i_peak_height + 1 );
 620
 621     i_band_width = floor( 360 / i_nb_bands - i_separ );
 622     if( i_band_width < 1 )
 623         i_band_width = 1;
 624
 625     for( c = 0 ; c < i_sections ; c++ )
 626     for( i = 0 ; i < (i_nb_bands / i_sections) ; i++ )
 627     {
 628         /* DO A PEAK */
 629         if( peaks[i] > 0 && i_peak )
 630         {
 631             if( peaks[i] >= p_effect->i_height )
 632                 peaks[i] = p_effect->i_height - 2;
 633             i_line = peaks[i];
 634
 635             /* circular line pattern(so color blend is more visible) */
 636             for( j = 0 ; j < i_peak_height ; j++ )
 637             {
 638                 x = p_picture->p[0].i_pitch / 2;
 639                 y = p_picture->p[0].i_lines / 2;
 640                 xx = x;
 641                 yy = y;
 642                 for( k = 0 ; k < (i_band_width + i_extra_width) ; k++ )
 643                 {
 644                     x = xx;
 645                     y = yy;
 646                     a = ( (i+1) * band_sep_angle + section_sep_angle * (c+1) + k )
 647                         * 3.141592 / 180.0;
 648                     x += (double)( cos(a) * (double)( i_line + j + i_rad ) );
 649                     y += (double)( -sin(a) * (double)( i_line + j + i_rad ) );
 650
 651                     *(p_picture->p[0].p_pixels + x + y * p_picture->p[0].i_pitch
 652                     ) = 255;/* Y(R,G,B); */
 653
 654                     x /= 2;
 655                     y /= 2;
 656
 657                     *(p_picture->p[1].p_pixels + x + y * p_picture->p[1].i_pitch
 658                     ) = 0;/* U(R,G,B); */
 659
 660                     if( 0x04 * (i_line + k ) - 0x0f > 0 )
 661                     {
 662                         if ( 0x04 * (i_line + k ) -0x0f < 0xff)
 663                             *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
 664                             ) = ( 0x04 * ( i_line + k ) ) -(color1-1);/* -V(R,G,B); */
 665                         else
 666                             *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
 667                             ) = 255;/* V(R,G,B); */
 668                     }
 669                     else
 670                     {
 671                         *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
 672                         ) = color1;/* V(R,G,B); */
 673                     }
 674                 }
 675             }
 676         }
 677
 678         if( (height[i] * i_amp) > p_effect->i_height )
 679             height[i] = floor( p_effect->i_height / i_amp );
 680
 681         /* DO BASE OF BAND (mostly makes a circle) */
 682         if( i_show_base != 0 )
 683         {
 684             x = p_picture->p[0].i_pitch / 2;
 685             y = p_picture->p[0].i_lines / 2;
 686
 687             a =  ( (i+1) * band_sep_angle + section_sep_angle * (c+1) )
 688                 * 3.141592 / 180.0;
 689             x += (double)( cos(a) * (double)i_rad );/* newb-forceful casting */
 690             y += (double)( -sin(a) * (double)i_rad );
 691
 692             *(p_picture->p[0].p_pixels + x + y * p_picture->p[0].i_pitch
 693             ) = 255;/* Y(R,G,B); */
 694
 695             x /= 2;
 696             y /= 2;
 697
 698             *(p_picture->p[1].p_pixels + x + y * p_picture->p[1].i_pitch
 699             ) = 0;/* U(R,G,B); */
 700
 701             if( 0x04 * i_line - 0x0f > 0 )
 702             {
 703                 if( 0x04 * i_line -0x0f < 0xff)
 704                     *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
 705                     ) = ( 0x04 * i_line) -(color1-1);/* -V(R,G,B); */
 706                 else
 707                     *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
 708                     ) = 255;/* V(R,G,B); */
 709             }
 710             else
 711             {
 712                 *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
 713                 ) = color1;/* V(R,G,B); */
 714             }
 715         }
 716
 717         /* DO A BAND */
 718         if( i_show_bands != 0 )
 719         for( j = 0 ; j < i_band_width ; j++ )
 720         {
 721             x = p_picture->p[0].i_pitch / 2;
 722             y = p_picture->p[0].i_lines / 2;
 723             xx = x;
 724             yy = y;
 725             a = ( (i+1) * band_sep_angle + section_sep_angle * (c+1) + j )
 726                 * 3.141592/180.0;
 727
 728             for( k = (i_rad+1) ; k < max_band_length ; k++ )
 729             {
 730                 if( (k-i_rad) > height[i] )
 731                     break;/* uhh.. */
 732
 733                 x = xx;
 734                 y = yy;
 735                 x += (double)( cos(a) * (double)k );/* newbed! */
 736                 y += (double)( -sin(a) * (double)k );
 737
 738                 *(p_picture->p[0].p_pixels + x + y * p_picture->p[0].i_pitch
 739                 ) = 255;
 740
 741                 x /= 2;
 742                 y /= 2;
 743
 744                 *(p_picture->p[1].p_pixels + x + y * p_picture->p[1].i_pitch
 745                 ) = 0;
 746
 747                 if( 0x04 * i_line - 0x0f > 0 )
 748                 {
 749                     if ( 0x04 * i_line -0x0f < 0xff)
 750                         *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
 751                         ) = ( 0x04 * i_line) -(color1-1);
 752                     else
 753                         *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
 754                         ) = 255;
 755                 }
 756                 else
 757                 {
 758                     *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
 759                     ) = color1;
 760                 }
 761             }
 762         }
 763     }
 764
 765     fft_close( p_state );
 766
 767     free( p_s16_buff );
 768     p_s16_buff = NULL;
 769
 770     free( height );
 771     free( psz_parse );
 772
 773     return 0;
 774 }
 775
 776
 777 /*****************************************************************************
 778  * scope_Run: scope effect
 779  *****************************************************************************/
 780 int scope_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
 781               aout_buffer_t * p_buffer , picture_t * p_picture)
 782 {
 783     VLC_UNUSED(p_aout);
 784     int i_index;
 785     float *p_sample ;
 786     uint8_t *ppp_area[2][3];
 787
 788
 789         for( i_index = 0 ; i_index < 2 ; i_index++ )
 790         {
 791             int j;
 792             for( j = 0 ; j < 3 ; j++ )
 793             {
 794                 ppp_area[i_index][j] =
 795                     p_picture->p[j].p_pixels + i_index * p_picture->p[j].i_lines
 796                                 / 2 * p_picture->p[j].i_pitch;
 797             }
 798         }
 799
 800         for( i_index = 0, p_sample = (float *)p_buffer->p_buffer;
 801              i_index < p_effect->i_width;
 802              i_index++ )
 803         {
 804             uint8_t i_value;
 805
 806             /* Left channel */
 807             i_value =  (*p_sample++ +1) * 127;
 808             *(ppp_area[0][0]
 809                + p_picture->p[0].i_pitch * i_index / p_effect->i_width
 810                + p_picture->p[0].i_lines * i_value / 512
 811                    * p_picture->p[0].i_pitch) = 0xbf;
 812             *(ppp_area[0][1]
 813                 + p_picture->p[1].i_pitch * i_index / p_effect->i_width
 814                 + p_picture->p[1].i_lines * i_value / 512
 815                    * p_picture->p[1].i_pitch) = 0xff;
 816
 817
 818            /* Right channel */
 819            i_value = ( *p_sample++ +1 ) * 127;
 820            *(ppp_area[1][0]
 821               + p_picture->p[0].i_pitch * i_index / p_effect->i_width
 822               + p_picture->p[0].i_lines * i_value / 512
 823                  * p_picture->p[0].i_pitch) = 0x9f;
 824            *(ppp_area[1][2]
 825               + p_picture->p[2].i_pitch * i_index / p_effect->i_width
 826               + p_picture->p[2].i_lines * i_value / 512
 827                 * p_picture->p[2].i_pitch) = 0xdd;
 828         }
 829         return 0;
 830 }