/*****************************************************************************
* effects.c : Effects for the visualization system
*****************************************************************************
- * Copyright (C) 2002 VideoLAN
- * $Id: effects.c,v 1.10 2003/12/04 16:02:54 sam Exp $
+ * Copyright (C) 2002 the VideoLAN team
+ * $Id$
*
- * Authors: Clément Stenac <zorglub@via.ecp.fr>
+ * Authors: Clément Stenac <zorglub@via.ecp.fr>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111, USA.
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
*****************************************************************************/
/*****************************************************************************
* Preamble
*****************************************************************************/
-#include <stdlib.h> /* malloc(), free() */
#include <vlc/vlc.h>
-#include <vlc/vout.h>
-#include "audio_output.h"
-#include "aout_internal.h"
+#include <vlc_vout.h>
+#include <vlc_aout.h>
#include "visual.h"
#include <math.h>
if( !p_s16_buff )
{
- msg_Err(p_aout,"Out of memory");
+ msg_Err(p_aout,"out of memory");
return -1;
}
p_effect->p_data=(void *)malloc(i_nb_bands * sizeof(int) );
if( !p_effect->p_data)
{
- msg_Err(p_aout,"Out of memory");
+ msg_Err(p_aout,"out of memory");
return -1;
}
peaks = (int *)p_effect->p_data;
height = (int *)malloc( i_nb_bands * sizeof(int) );
if( !height)
{
- msg_Err(p_aout,"Out of memory");
+ msg_Err(p_aout,"out of memory");
return -1;
}
/* Convert the buffer to int16_t */
/* Pasted from float32tos16.c */
for (i = p_buffer->i_nb_samples * p_effect->i_nb_chans; i--; )
{
- float f_in = *p_buffl + 384.0;
- int32_t i_in;
- i_in = *(int32_t *)(intptr_t)&f_in;
- if(i_in > 0x43c07fff ) * p_buffs = 32767;
- else if ( i_in < 0x43bf8000 ) *p_buffs = -32768;
- else *p_buffs = i_in - 0x43c00000;
+ union { float f; int32_t i; } u;
+ u.f = *p_buffl + 384.0;
+ if(u.i > 0x43c07fff ) * p_buffs = 32767;
+ else if ( u.i < 0x43bf8000 ) *p_buffs = -32768;
+ else *p_buffs = u.i - 0x43c00000;
p_buffl++ ; p_buffs++ ;
}
p_state = visual_fft_init();
if( !p_state)
{
- msg_Err(p_aout,"Unable to initialize FFT transform");
+ msg_Err(p_aout,"unable to initialize FFT transform");
return -1;
}
p_buffs = p_s16_buff;
}
+/*****************************************************************************
+ * spectrometer_Run: derivative spectrum analysis
+ *****************************************************************************/
+int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
+ aout_buffer_t * p_buffer , picture_t * p_picture)
+{
+#define Y(R,G,B) ((uint8_t)( (R * .299) + (G * .587) + (B * .114) ))
+#define U(R,G,B) ((uint8_t)( (R * -.169) + (G * -.332) + (B * .500) + 128 ))
+#define V(R,G,B) ((uint8_t)( (R * .500) + (G * -.419) + (B * -.0813) + 128 ))
+ float p_output[FFT_BUFFER_SIZE]; /* Raw FFT Result */
+ int *height; /* Bar heights */
+ int *peaks; /* Peaks */
+ int i_nb_bands; /* number of bands */
+ int i_band_width; /* width of bands */
+ int i_separ; /* Should we let blanks ? */
+ int i_amp; /* Vertical amplification */
+ int i_peak; /* Should we draw peaks ? */
+
+ int i_original; /* original spectrum graphic routine */
+ int i_rad; /* radius of circle of base of bands */
+ int i_sections; /* sections of spectranalysis */
+ int i_extra_width; /* extra width on peak */
+ int i_peak_height; /* height of peak */
+ int c; /* sentinel container of total spectral sections */
+ double band_sep_angle; /* angled separation between beginning of each band */
+ double section_sep_angle;/* " " ' " ' " " spectrum section */
+ int max_band_length; /* try not to go out of screen */
+ int i_show_base; /* Should we draw base of circle ? */
+ int i_show_bands; /* Should we draw bands ? */
+ //int i_invert_bands; /* do the bands point inward ? */
+ double a; /* for various misc angle situations in radians */
+ int x,y,xx,yy; /* various misc x/y */
+ char color1; /* V slide on a YUV color cube */
+ //char color2; /* U slide.. ? color2 fade color ? */
+
+ char *psz_parse = NULL; /* Args line */
+
+ /* Horizontal scale for 20-band equalizer */
+ const int xscale1[]={0,1,2,3,4,5,6,7,8,11,15,20,27,
+ 36,47,62,82,107,141,184,255};
+
+ /* Horizontal scale for 80-band equalizer */
+ const int xscale2[] =
+ {0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,
+ 19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,
+ 35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,
+ 52,53,54,55,56,57,58,59,61,63,67,72,77,82,87,93,99,105,
+ 110,115,121,130,141,152,163,174,185,200,255};
+ const int *xscale;
+ const double y_scale = 3.60673760222; /* (log 256) */
+
+ fft_state *p_state; /* internal FFT data */
+
+ int i , j , k;
+ int i_line;
+ int16_t p_dest[FFT_BUFFER_SIZE]; /* Adapted FFT result */
+ int16_t p_buffer1[FFT_BUFFER_SIZE]; /* Buffer on which we perform
+ the FFT (first channel) */
+ float *p_buffl = /* Original buffer */
+ (float*)p_buffer->p_buffer;
+
+ int16_t *p_buffs; /* int16_t converted buffer */
+ int16_t *p_s16_buff = NULL; /* int16_t converted buffer */
+
+ i_line = 0;
+
+ p_s16_buff = (int16_t*)malloc(
+ p_buffer->i_nb_samples * p_effect->i_nb_chans * sizeof(int16_t));
+
+ if( !p_s16_buff )
+ {
+ msg_Err(p_aout,"out of memory");
+ return -1;
+ }
+
+ p_buffs = p_s16_buff;
+ i_original = config_GetInt ( p_aout, "spect-show-original" );
+ i_nb_bands = config_GetInt ( p_aout, "spect-nbbands" );
+ i_separ = config_GetInt ( p_aout, "spect-separ" );
+ i_amp = config_GetInt ( p_aout, "spect-amp" );
+ i_peak = config_GetInt ( p_aout, "spect-show-peaks" );
+ i_show_base = config_GetInt ( p_aout, "spect-show-base" );
+ i_show_bands = config_GetInt ( p_aout, "spect-show-bands" );
+ i_rad = config_GetInt ( p_aout, "spect-radius" );
+ i_sections = config_GetInt ( p_aout, "spect-sections" );
+ i_extra_width = config_GetInt ( p_aout, "spect-peak-width" );
+ i_peak_height = config_GetInt ( p_aout, "spect-peak-height" );
+ color1 = config_GetInt ( p_aout, "spect-color" );
+
+ if( i_nb_bands == 20)
+ {
+ xscale = xscale1;
+ }
+ else
+ {
+ if( i_nb_bands > 80 )
+ i_nb_bands = 80;
+ xscale = xscale2;
+ }
+
+ if( !p_effect->p_data )
+ {
+ p_effect->p_data=(void *)malloc(i_nb_bands * sizeof(int) );
+ if( !p_effect->p_data)
+ {
+ msg_Err(p_aout,"out of memory");
+ return -1;
+ }
+ peaks = (int *)p_effect->p_data;
+ for( i = 0 ; i < i_nb_bands ; i++)
+ {
+ peaks[i] = 0;
+ }
+ }
+ else
+ {
+ peaks =(int *)p_effect->p_data;
+ }
+
+ height = (int *)malloc( i_nb_bands * sizeof(int) );
+ if( !height)
+ {
+ msg_Err(p_aout,"out of memory");
+ return -1;
+ }
+
+ /* Convert the buffer to int16_t */
+ /* Pasted from float32tos16.c */
+ for (i = p_buffer->i_nb_samples * p_effect->i_nb_chans; i--; )
+ {
+ union { float f; int32_t i; } u;
+ u.f = *p_buffl + 384.0;
+ if(u.i > 0x43c07fff ) * p_buffs = 32767;
+ else if ( u.i < 0x43bf8000 ) *p_buffs = -32768;
+ else *p_buffs = u.i - 0x43c00000;
+
+ p_buffl++ ; p_buffs++ ;
+ }
+ p_state = visual_fft_init();
+ if( !p_state)
+ {
+ msg_Err(p_aout,"unable to initialize FFT transform");
+ return -1;
+ }
+ p_buffs = p_s16_buff;
+ for ( i = 0 ; i < FFT_BUFFER_SIZE ; i++)
+ {
+ p_output[i] = 0;
+ p_buffer1[i] = *p_buffs;
+ p_buffs = p_buffs + p_effect->i_nb_chans;
+ }
+ fft_perform( p_buffer1, p_output, p_state);
+ for(i= 0; i< FFT_BUFFER_SIZE ; i++ )
+ p_dest[i] = ( (int) sqrt( p_output [ i + 1 ] ) ) >> 8;
+
+ i_nb_bands *= i_sections;
+
+ for ( i = 0 ; i< i_nb_bands/i_sections ;i++)
+ {
+ /* We search the maximum on one scale */
+ for( j = xscale[i] , y=0 ; j< xscale[ i + 1 ] ; j++ )
+ {
+ if ( p_dest[j] > y )
+ y = p_dest[j];
+ }
+ /* Calculate the height of the bar */
+ y >>=7;/* remove some noise */
+ if( y != 0)
+ {
+ height[i] = (int)log(y)* y_scale;
+ if(height[i] > 150)
+ height[i] = 150;
+ }
+ else
+ {
+ height[i] = 0 ;
+ }
+
+ /* Draw the bar now */
+ i_band_width = floor( p_effect->i_width / (i_nb_bands/i_sections)) ;
+
+ if( i_amp * height[i] > peaks[i])
+ {
+ peaks[i] = i_amp * height[i];
+ }
+ else if (peaks[i] > 0 )
+ {
+ peaks[i] -= PEAK_SPEED;
+ if( peaks[i] < i_amp * height[i] )
+ {
+ peaks[i] = i_amp * height[i];
+ }
+ if( peaks[i] < 0 )
+ {
+ peaks[i] = 0;
+ }
+ }
+
+ if( i_original != 0 )
+ {
+ if( peaks[i] > 0 && i_peak )
+ {
+ if( peaks[i] >= p_effect->i_height )
+ peaks[i] = p_effect->i_height - 2;
+ i_line = peaks[i];
+
+ for( j = 0 ; j< i_band_width - i_separ; j++)
+ {
+ for( k = 0 ; k< 3 ; k ++)
+ {
+ //* Draw the peak
+ *(p_picture->p[0].p_pixels +
+ (p_picture->p[0].i_lines - i_line -1 -k ) *
+ p_picture->p[0].i_pitch + (i_band_width*i +j) )
+ = 0xff;
+
+ *(p_picture->p[1].p_pixels +
+ (p_picture->p[1].i_lines - i_line /2 -1 -k/2 ) *
+ p_picture->p[1].i_pitch +
+ ( ( i_band_width * i + j ) /2 ) )
+ = 0x00;
+
+ if( 0x04 * (i_line + k ) - 0x0f > 0 )
+ {
+ if ( 0x04 * (i_line + k ) -0x0f < 0xff)
+ *(p_picture->p[2].p_pixels +
+ (p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
+ p_picture->p[2].i_pitch +
+ ( ( i_band_width * i + j ) /2 ) )
+ = ( 0x04 * ( i_line + k ) ) -0x0f ;
+ else
+ *(p_picture->p[2].p_pixels +
+ (p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
+ p_picture->p[2].i_pitch +
+ ( ( i_band_width * i + j ) /2 ) )
+ = 0xff;
+ }
+ else
+ {
+ *(p_picture->p[2].p_pixels +
+ (p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
+ p_picture->p[2].i_pitch +
+ ( ( i_band_width * i + j ) /2 ) )
+ = 0x10 ;
+ }
+ }
+ }
+ }
+ if(height[i] * i_amp > p_effect->i_height)
+ height[i] = floor(p_effect->i_height / i_amp );
+
+ for(i_line = 0 ; i_line < i_amp * height[i]; i_line ++ )
+ {
+ for( j = 0 ; j< i_band_width - i_separ ; j++)
+ {
+ *(p_picture->p[0].p_pixels +
+ (p_picture->p[0].i_lines - i_line -1) *
+ p_picture->p[0].i_pitch + (i_band_width*i +j) ) = 0xff;
+
+ *(p_picture->p[1].p_pixels +
+ (p_picture->p[1].i_lines - i_line /2 -1) *
+ p_picture->p[1].i_pitch +
+ ( ( i_band_width * i + j ) /2 ) ) = 0x00;
+
+ if( 0x04 * i_line - 0x0f > 0 )
+ {
+ if( 0x04 * i_line - 0x0f < 0xff )
+ *(p_picture->p[2].p_pixels +
+ (p_picture->p[2].i_lines - i_line /2 - 1) *
+ p_picture->p[2].i_pitch +
+ ( ( i_band_width * i + j ) /2 ) ) =
+ ( 0x04 * i_line) -0x0f ;
+ else
+ *(p_picture->p[2].p_pixels +
+ (p_picture->p[2].i_lines - i_line /2 - 1) *
+ p_picture->p[2].i_pitch +
+ ( ( i_band_width * i + j ) /2 ) ) =
+ 0xff;
+ }
+ else
+ {
+ *(p_picture->p[2].p_pixels +
+ (p_picture->p[2].i_lines - i_line /2 - 1) *
+ p_picture->p[2].i_pitch +
+ ( ( i_band_width * i + j ) /2 ) ) =
+ 0x10 ;
+ }
+ }
+ }
+ }
+ }
+
+ band_sep_angle = 360.0 / i_nb_bands;
+ section_sep_angle = 360.0 / i_sections;
+ if( i_peak_height < 1 )
+ i_peak_height = 1;
+ max_band_length = p_picture->p[0].i_lines / 2 - ( i_rad + i_peak_height + 1 );
+
+ i_band_width = floor( 360 / i_nb_bands - i_separ );
+ if( i_band_width < 1 )
+ i_band_width = 1;
+
+ for( c = 0 ; c < i_sections ; c++ )
+ for( i = 0 ; i < (i_nb_bands / i_sections) ; i++ )
+ {
+ /* DO A PEAK */
+ if( peaks[i] > 0 && i_peak )
+ {
+ if( peaks[i] >= p_effect->i_height )
+ peaks[i] = p_effect->i_height - 2;
+ i_line = peaks[i];
+
+ /* circular line pattern(so color blend is more visible) */
+ for( j = 0 ; j < i_peak_height ; j++ )
+ {
+ x = p_picture->p[0].i_pitch / 2;
+ y = p_picture->p[0].i_lines / 2;
+ xx = x;
+ yy = y;
+ for( k = 0 ; k < (i_band_width + i_extra_width) ; k++ )
+ {
+ x = xx;
+ y = yy;
+ a = ( (i+1) * band_sep_angle + section_sep_angle * (c+1) + k )
+ * 3.141592 / 180.0;
+ x += (double)( cos(a) * (double)( i_line + j + i_rad ) );
+ y += (double)( -sin(a) * (double)( i_line + j + i_rad ) );
+
+ *(p_picture->p[0].p_pixels + x + y * p_picture->p[0].i_pitch
+ ) = 255;/* Y(R,G,B); */
+
+ x /= 2;
+ y /= 2;
+
+ *(p_picture->p[1].p_pixels + x + y * p_picture->p[1].i_pitch
+ ) = 0;/* U(R,G,B); */
+
+ if( 0x04 * (i_line + k ) - 0x0f > 0 )
+ {
+ if ( 0x04 * (i_line + k ) -0x0f < 0xff)
+ *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
+ ) = ( 0x04 * ( i_line + k ) ) -(color1-1);/* -V(R,G,B); */
+ else
+ *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
+ ) = 255;/* V(R,G,B); */
+ }
+ else
+ {
+ *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
+ ) = color1;/* V(R,G,B); */
+ }
+ }
+ }
+ }
+
+ if( (height[i] * i_amp) > p_effect->i_height )
+ height[i] = floor( p_effect->i_height / i_amp );
+
+ /* DO BASE OF BAND (mostly makes a circle) */
+ if( i_show_base != 0 )
+ {
+ x = p_picture->p[0].i_pitch / 2;
+ y = p_picture->p[0].i_lines / 2;
+
+ a = ( (i+1) * band_sep_angle + section_sep_angle * (c+1) )
+ * 3.141592 / 180.0;
+ x += (double)( cos(a) * (double)i_rad );/* newb-forceful casting */
+ y += (double)( -sin(a) * (double)i_rad );
+
+ *(p_picture->p[0].p_pixels + x + y * p_picture->p[0].i_pitch
+ ) = 255;/* Y(R,G,B); */
+
+ x /= 2;
+ y /= 2;
+
+ *(p_picture->p[1].p_pixels + x + y * p_picture->p[1].i_pitch
+ ) = 0;/* U(R,G,B); */
+
+ if( 0x04 * i_line - 0x0f > 0 )
+ {
+ if( 0x04 * i_line -0x0f < 0xff)
+ *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
+ ) = ( 0x04 * i_line) -(color1-1);/* -V(R,G,B); */
+ else
+ *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
+ ) = 255;/* V(R,G,B); */
+ }
+ else
+ {
+ *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
+ ) = color1;/* V(R,G,B); */
+ }
+ }
+
+ /* DO A BAND */
+ if( i_show_bands != 0 )
+ for( j = 0 ; j < i_band_width ; j++ )
+ {
+ x = p_picture->p[0].i_pitch / 2;
+ y = p_picture->p[0].i_lines / 2;
+ xx = x;
+ yy = y;
+ a = ( (i+1) * band_sep_angle + section_sep_angle * (c+1) + j )
+ * 3.141592/180.0;
+
+ for( k = (i_rad+1) ; k < max_band_length ; k++ )
+ {
+ if( (k-i_rad) > height[i] )
+ break;/* uhh.. */
+
+ x = xx;
+ y = yy;
+ x += (double)( cos(a) * (double)k );/* newbed! */
+ y += (double)( -sin(a) * (double)k );
+
+ *(p_picture->p[0].p_pixels + x + y * p_picture->p[0].i_pitch
+ ) = 255;
+
+ x /= 2;
+ y /= 2;
+
+ *(p_picture->p[1].p_pixels + x + y * p_picture->p[1].i_pitch
+ ) = 0;
+
+ if( 0x04 * i_line - 0x0f > 0 )
+ {
+ if ( 0x04 * i_line -0x0f < 0xff)
+ *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
+ ) = ( 0x04 * i_line) -(color1-1);
+ else
+ *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
+ ) = 255;
+ }
+ else
+ {
+ *(p_picture->p[2].p_pixels + x + y * p_picture->p[2].i_pitch
+ ) = color1;
+ }
+ }
+ }
+ }
+
+ fft_close( p_state );
+
+ if( p_s16_buff != NULL )
+ {
+ free( p_s16_buff );
+ p_s16_buff = NULL;
+ }
+
+ if(height) free(height);
+
+ if(psz_parse) free(psz_parse);
+
+ return 0;
+}
+
+
/*****************************************************************************
* scope_Run: scope effect
*****************************************************************************/
}
return 0;
}
-
-
-/*****************************************************************************
- * random_Run: random plots display effect
- *****************************************************************************/
-int random_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
- aout_buffer_t * p_buffer , picture_t * p_picture)
-{
- int i_nb_plots;
- char *psz_parse= NULL;
- int i , i_y , i_u , i_v;
- int i_position;
- srand((unsigned int)mdate());
-
- if( p_effect->psz_args )
- {
- psz_parse = strdup( p_effect->psz_args );
- i_nb_plots = config_GetInt ( p_aout, "visual-stars" );
- }
- else
- {
- i_nb_plots = 200;
- }
-
- for( i = 0 ; i < i_nb_plots ; i++ )
- {
- i_position = rand() % (p_effect->i_width * p_effect->i_height );
- i_y = rand() % 256;
- i_u = rand() % 256;
- i_v = rand() % 256;
- *(p_picture->p[0].p_pixels + i_position )= i_u;
- *(p_picture->p[1].p_pixels + i_position/4) = i_v;
- *(p_picture->p[2].p_pixels + i_position/4) = i_y;
- }
- return 0;
-}
-
-/*****************************************************************************
- * blur_Run: blur effect
- *****************************************************************************/
-#if 0
- /* This code is totally crappy */
-int blur_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
- aout_buffer_t * p_buffer , picture_t * p_picture)
-{
- uint8_t * p_pictures;
- int i,j;
- int i_size; /* Total size of one image */
-
- i_size = (p_picture->p[0].i_pitch * p_picture->p[0].i_lines +
- p_picture->p[1].i_pitch * p_picture->p[1].i_lines +
- p_picture->p[2].i_pitch * p_picture->p[2].i_lines );
-
- if( !p_effect->p_data )
- {
- p_effect->p_data=(void *)malloc( 5 * i_size *sizeof(uint8_t));
-
- if( !p_effect->p_data)
- {
- msg_Err(p_aout,"Out of memory");
- return -1;
- }
- p_pictures = (uint8_t *)p_effect->p_data;
- }
- else
- {
- p_pictures =(uint8_t *)p_effect->p_data;
- }
-
- for( i = 0 ; i < 5 ; i++)
- {
- for ( j = 0 ; j< p_picture->p[0].i_pitch * p_picture->p[0].i_lines; i++)
- p_picture->p[0].p_pixels[j] =
- p_pictures[i * i_size + j] * (100 - 20 * i) /100 ;
- for ( j = 0 ; j< p_picture->p[1].i_pitch * p_picture->p[1].i_lines; i++)
- p_picture->p[1].p_pixels[j] =
- p_pictures[i * i_size +
- p_picture->p[0].i_pitch * p_picture->p[0].i_lines + j ];
- for ( j = 0 ; j< p_picture->p[2].i_pitch * p_picture->p[2].i_lines; i++)
- p_picture->p[2].p_pixels[j] =
- p_pictures[i * i_size +
- p_picture->p[0].i_pitch * p_picture->p[0].i_lines +
- p_picture->p[1].i_pitch * p_picture->p[1].i_lines
- + j ];
- }
-
- memcpy ( &p_pictures[ i_size ] , &p_pictures[0] , 4 * i_size * sizeof(uint8_t) );
-}
-#endif
projects / vlc / blobdiff