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Commit df325fb8 authored by Adrien Maglo's avatar Adrien Maglo Committed by Jean-Baptiste Kempf
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Improve spectrum visualization. Change options : the number of bands for the... 

Improve spectrum visualization. Change options : the number of bands for the spectrum and spectrometer visualization is now set with a boolean. Ban some actions to avoid segfaults in visualizations.
Signed-off-by: default avatarJean-Baptiste Kempf <jb@videolan.org>
parent 7b3cb7d9
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Showing with 141 additions and 115 deletions
modules/visualization/visual/effects.c
View file @ df325fb8
......@@ -39,6 +39,7 @@
#include "fft.h"
#define PEAK_SPEED 1
#define BAR_DECREASE_SPEED 5
#define GRAD_ANGLE_MIN 0.2
#define GRAD_ANGLE_MAX 0.5
......@@ -61,13 +62,15 @@ int dummy_Run( visual_effect_t * p_effect, aout_instance_t *p_aout,
int spectrum_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
aout_buffer_t * p_buffer , picture_t * p_picture)
{
spectrum_data *p_data = p_effect->p_data;
float p_output[FFT_BUFFER_SIZE]; /* Raw FFT Result */
int *height; /* Bar heights */
int *peaks; /* Peaks */
int i_nb_bands; /* number of bands */
int *prev_heights; /* Previous bar heights */
int i_80_bands; /* number of bands : 80 if true else 20 */
int i_nb_bands; /* number of bands : 80 or 20 */
int i_band_width; /* width of bands */
int i_separ; /* Should we let blanks ? */
int i_amp; /* Vertical amplification */
int i_start; /* first band horizontal position */
int i_peak; /* Should we draw peaks ? */
/* Horizontal scale for 20-band equalizer */
......@@ -82,7 +85,6 @@ int spectrum_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
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 */
......@@ -105,39 +107,39 @@ int spectrum_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
return -1;
p_buffs = p_s16_buff;
i_nb_bands = config_GetInt ( p_aout, "visual-nbbands" );
i_separ = config_GetInt( p_aout, "visual-separ" );
i_amp = config_GetInt ( p_aout, "visual-amp" );
i_80_bands = config_GetInt ( p_aout, "visual-80-bands" );
i_peak = config_GetInt ( p_aout, "visual-peaks" );
if( i_nb_bands == 20)
if( i_80_bands != 0)
{
xscale = xscale1;
xscale = xscale2;
i_nb_bands = 80;
}
else
{
i_nb_bands = 80;
xscale = xscale2;
xscale = xscale1;
i_nb_bands = 20;
}
if( !p_effect->p_data )
if( !p_data )
{
p_effect->p_data = malloc(i_nb_bands * sizeof(int) );
if( !p_effect->p_data)
p_effect->p_data = p_data = malloc( sizeof( spectrum_data ) );
p_data->peaks = calloc( 80, sizeof(int) );
p_data->prev_heights = calloc( 80, sizeof(int) );
if( !p_data)
{
free( p_s16_buff );
return -1;
}
peaks = (int *)p_effect->p_data;
for( i = 0 ; i < i_nb_bands ; i++)
{
peaks[i] = 0;
}
peaks = ( int * )p_data->peaks;
prev_heights = ( int * )p_data->prev_heights;
}
else
{
peaks =(int *)p_effect->p_data;
peaks = (int *)p_data->peaks;
prev_heights = (int *)p_data->prev_heights;
}
......@@ -170,48 +172,48 @@ int spectrum_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
p_buffs = p_s16_buff;
for ( i = 0 ; i < FFT_BUFFER_SIZE ; i++)
{
p_output[i] = 0;
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 ] ) ) >> 8;
for( i = 0; i< FFT_BUFFER_SIZE ; i++ )
p_dest[i] = p_output[i] * ( 2 ^ 16 ) / ( ( FFT_BUFFER_SIZE / 2 * 32768 ) ^ 2 );
for ( i = 0 ; i< i_nb_bands ;i++)
/* Compute the horizontal position of the first band */
i_band_width = floor( p_effect->i_width / i_nb_bands);
i_start = ( p_effect->i_width - i_band_width * i_nb_bands ) / 2;
for ( i = 0 ; i < i_nb_bands ;i++)
{
/* We search the maximum on one scale */
for( j = xscale[i] , y=0 ; j< xscale[ i + 1 ] ; j++ )
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)
if( y != 0 )
{
height[i] = (int)log(y)* y_scale;
if(height[i] > 150)
height[i] = 150;
height[i] = log( y ) * 30;
if( height[i] > 380 )
height[i] = 380;
}
else
{
height[i] = 0 ;
}
height[ i ] = 0;
/* Draw the bar now */
i_band_width = floor( p_effect->i_width / i_nb_bands) ;
if( i_amp * height[i] > peaks[i])
if( height[i] > peaks[i] )
{
peaks[i] = i_amp * height[i];
peaks[i] = height[i];
}
else if (peaks[i] > 0 )
else if( peaks[i] > 0 )
{
peaks[i] -= PEAK_SPEED;
if( peaks[i] < i_amp * height[i] )
if( peaks[i] < height[i] )
{
peaks[i] = i_amp * height[i];
peaks[i] = height[i];
}
if( peaks[i] < 0 )
{
......@@ -219,93 +221,103 @@ int spectrum_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
}
}
/* Decrease the bars if needed */
if( height[i] <= prev_heights[i] - BAR_DECREASE_SPEED )
{
height[i] = prev_heights[i];
height[i] -= BAR_DECREASE_SPEED;
}
prev_heights[i] = height[i];
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( j = 0; j < i_band_width - 1; j++ )
{
for( k = 0 ; k< 3 ; k ++)
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) )
*(p_picture->p[0].p_pixels +
( p_effect->i_height - i_line -1 -k ) *
p_picture->p[0].i_pitch +
( i_start + 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].p_pixels +
( ( p_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
p_picture->p[1].i_pitch +
( ( i_band_width * i + j ) /2 ) )
( ( i_start + i_band_width * i + j ) /2 ) )
= 0x00;
if( 0x04 * (i_line + k ) - 0x0f > 0 )
if( i_line + k - 0x0f > 0 )
{
if ( 0x04 * (i_line + k ) -0x0f < 0xff)
if ( i_line + k - 0x0f < 0xff )
*(p_picture->p[2].p_pixels +
(p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
( ( p_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
p_picture->p[2].i_pitch +
( ( i_band_width * i + j ) /2 ) )
= ( 0x04 * ( i_line + k ) ) -0x0f ;
( ( i_start + i_band_width * i + j ) /2 ) )
= ( i_line + k ) - 0x0f;
else
*(p_picture->p[2].p_pixels +
(p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
( ( p_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
p_picture->p[2].i_pitch +
( ( i_band_width * i + j ) /2 ) )
( ( i_start + 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_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
p_picture->p[2].i_pitch +
( ( i_band_width * i + j ) /2 ) )
( ( i_start + 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 );
if(height[i] > p_effect->i_height)
height[i] = floor(p_effect->i_height );
for(i_line = 0 ; i_line < i_amp * height[i]; i_line ++ )
for( i_line = 0; i_line < height[i]; i_line++ )
{
for( j = 0 ; j< i_band_width - i_separ ; j++)
for( j = 0 ; j < i_band_width - 1; 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_effect->i_height - i_line - 1) *
p_picture->p[0].i_pitch +
( i_start + 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].p_pixels +
( ( p_effect->i_height - i_line ) / 2 - 1) *
p_picture->p[1].i_pitch +
( ( i_band_width * i + j ) /2 ) ) = 0x00;
( ( i_start + i_band_width * i + j ) /2 ) ) = 0x00;
if( 0x04 * i_line - 0x0f > 0 )
if( i_line - 0x0f > 0 )
{
if( 0x04 * i_line - 0x0f < 0xff )
if( i_line - 0x0f < 0xff )
*(p_picture->p[2].p_pixels +
(p_picture->p[2].i_lines - i_line /2 - 1) *
( ( p_effect->i_height - i_line ) / 2 - 1) *
p_picture->p[2].i_pitch +
( ( i_band_width * i + j ) /2 ) ) =
( 0x04 * i_line) -0x0f ;
( ( i_start + i_band_width * i + j ) /2 ) ) =
i_line - 0x0f;
else
*(p_picture->p[2].p_pixels +
(p_picture->p[2].i_lines - i_line /2 - 1) *
( ( p_effect->i_height - i_line ) / 2 - 1) *
p_picture->p[2].i_pitch +
( ( i_band_width * i + j ) /2 ) ) =
( ( i_start + 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 ;
( ( p_effect->i_height - i_line ) / 2 - 1) *
p_picture->p[2].i_pitch +
( ( i_start + i_band_width * i + j ) /2 ) ) =
0x10;
}
}
}
......@@ -332,7 +344,8 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
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_80_bands; /* number of bands : 80 if true else 20 */
int i_nb_bands; /* number of bands : 80 or 20 */
int i_band_width; /* width of bands */
int i_separ; /* Should we let blanks ? */
int i_amp; /* Vertical amplification */
......@@ -392,7 +405,7 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
p_buffs = p_s16_buff;
i_original = config_GetInt ( p_aout, "spect-show-original" );
i_nb_bands = config_GetInt ( p_aout, "spect-nbbands" );
i_80_bands = config_GetInt ( p_aout, "spect-80-bands" );
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" );
......@@ -404,20 +417,20 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
i_peak_height = config_GetInt ( p_aout, "spect-peak-height" );
color1 = config_GetInt ( p_aout, "spect-color" );
if( i_nb_bands == 20)
if( i_80_bands != 0)
{
xscale = xscale1;
xscale = xscale2;
i_nb_bands = 80;
}
else
{
if( i_nb_bands > 80 )
i_nb_bands = 80;
xscale = xscale2;
xscale = xscale1;
i_nb_bands = 20;
}
if( !p_effect->p_data )
{
p_effect->p_data=(void *)malloc( i_nb_bands * sizeof(int) );
p_effect->p_data=(void *)malloc( 80 * sizeof(int) );
if( !p_effect->p_data )
{
free( p_s16_buff );
......@@ -531,12 +544,12 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
{
//* Draw the peak
*(p_picture->p[0].p_pixels +
(p_picture->p[0].i_lines - i_line -1 -k ) *
(p_effect->i_height - 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_effect->i_height - i_line ) / 2 -1 -k/2 ) *
p_picture->p[1].i_pitch +
( ( i_band_width * i + j ) /2 ) )
= 0x00;
......@@ -545,13 +558,13 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
{
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_effect->i_height - 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_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
p_picture->p[2].i_pitch +
( ( i_band_width * i + j ) /2 ) )
= 0xff;
......@@ -559,7 +572,7 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
else
{
*(p_picture->p[2].p_pixels +
(p_picture->p[2].i_lines - i_line /2 - 1 -k/2 ) *
( ( p_effect->i_height - i_line ) / 2 - 1 -k/2 ) *
p_picture->p[2].i_pitch +
( ( i_band_width * i + j ) /2 ) )
= 0x10 ;
......@@ -575,11 +588,11 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
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_effect->i_height - 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_effect->i_height - i_line ) / 2 -1) *
p_picture->p[1].i_pitch +
( ( i_band_width * i + j ) /2 ) ) = 0x00;
......@@ -587,13 +600,13 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
{
if( 0x04 * i_line - 0x0f < 0xff )
*(p_picture->p[2].p_pixels +
(p_picture->p[2].i_lines - i_line /2 - 1) *
( ( p_effect->i_height - 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_effect->i_height - i_line ) / 2 - 1) *
p_picture->p[2].i_pitch +
( ( i_band_width * i + j ) /2 ) ) =
0xff;
......@@ -601,7 +614,7 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
else
{
*(p_picture->p[2].p_pixels +
(p_picture->p[2].i_lines - i_line /2 - 1) *
( ( p_effect->i_height - i_line ) / 2 - 1) *
p_picture->p[2].i_pitch +
( ( i_band_width * i + j ) /2 ) ) =
0x10 ;
......@@ -615,7 +628,7 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
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 );
max_band_length = p_effect->i_height / 2 - ( i_rad + i_peak_height + 1 );
i_band_width = floor( 360 / i_nb_bands - i_separ );
if( i_band_width < 1 )
......@@ -634,8 +647,9 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
/* 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;
//x = p_picture->p[0].i_pitch / 2;
x = p_effect->i_width / 2;
y = p_effect->i_height / 2;
xx = x;
yy = y;
for( k = 0 ; k < (i_band_width + i_extra_width) ; k++ )
......@@ -680,8 +694,9 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
/* 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;
//x = p_picture->p[0].i_pitch / 2;
x = p_effect->i_width / 2;
y = p_effect->i_height / 2;
a = ( (i+1) * band_sep_angle + section_sep_angle * (c+1) )
* 3.141592 / 180.0;
......@@ -717,8 +732,8 @@ int spectrometer_Run(visual_effect_t * p_effect, aout_instance_t *p_aout,
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;
x = p_effect->i_width / 2;
y = p_effect->i_height / 2;
xx = x;
yy = y;
a = ( (i+1) * band_sep_angle + section_sep_angle * (c+1) + j )
......
modules/visualization/visual/visual.c
View file @ df325fb8
......@@ -51,11 +51,11 @@
#define HEIGHT_LONGTEXT N_( \
"The height of the effects video window, in pixels." )
#define NBBANDS_TEXT N_( "Number of bands" )
#define NBBANDS_TEXT N_( "More bands : 80 / 20" )
#define NBBANDS_LONGTEXT N_( \
"Number of bands used by spectrum analyzer, should be 20 or 80." )
"More bands for the spectrum analyzer : 80 if enabled else 20." )
#define SPNBBANDS_LONGTEXT N_( \
"Number of bands used by the spectrometer, from 20 to 80." )
"More bands for the spectrometer : 80 if enabled else 20." )
#define SEPAR_TEXT N_( "Band separator" )
#define SEPAR_LONGTEXT N_( \
......@@ -121,12 +121,11 @@ vlc_module_begin ()
add_integer("effect-height" , VOUT_HEIGHT , NULL,
HEIGHT_TEXT, HEIGHT_LONGTEXT, false )
set_section( N_("Spectrum analyser") , NULL )
add_integer("visual-nbbands", 80, NULL,
NBBANDS_TEXT, NBBANDS_LONGTEXT, true )
add_integer("visual-separ", 1, NULL,
SEPAR_TEXT, SEPAR_LONGTEXT, true )
add_integer("visual-amp", 3, NULL,
AMP_TEXT, AMP_LONGTEXT, true )
add_obsolete_integer( "visual-nbbands" ) /* Since 1.0.0 */
add_bool("visual-80-bands", 1, NULL,
NBBANDS_TEXT, NBBANDS_LONGTEXT, true );
add_obsolete_integer( "visual-separ" ) /* Since 1.0.0 */
add_obsolete_integer( "visual-amp" ) /* Since 1.0.0 */
add_bool("visual-peaks", true, NULL,
PEAKS_TEXT, PEAKS_LONGTEXT, true )
set_section( N_("Spectrometer") , NULL )
......@@ -141,8 +140,9 @@ vlc_module_begin ()
add_integer("spect-color", 80, NULL,
COLOR1_TEXT, COLOR1_LONGTEXT, true )
add_bool("spect-show-bands", true, NULL,
BANDS_TEXT, BANDS_LONGTEXT, true )
add_integer("spect-nbbands", 32, NULL,
BANDS_TEXT, BANDS_LONGTEXT, true );
add_obsolete_integer( "spect-nbbands" ) /* Since 1.0.0 */
add_bool("spect-80-bands", 1, NULL,
NBBANDS_TEXT, SPNBBANDS_LONGTEXT, true )
add_integer("spect-separ", 1, NULL,
SEPAR_TEXT, SEPAR_LONGTEXT, true )
......@@ -208,8 +208,8 @@ static int Open( vlc_object_t *p_this )
p_sys->i_height = config_GetInt( p_filter , "effect-height");
p_sys->i_width = config_GetInt( p_filter , "effect-width");
if( p_sys->i_height < 20 ) p_sys->i_height = 20;
if( p_sys->i_width < 20 ) p_sys->i_width = 20;
if( p_sys->i_height < 400 ) p_sys->i_height = 400;
if( p_sys->i_width < 532 ) p_sys->i_width = 532;
if( (p_sys->i_height % 2 ) != 0 ) p_sys->i_height--;
if( (p_sys->i_width % 2 ) != 0 ) p_sys->i_width--;
......@@ -394,6 +394,11 @@ static void Close( vlc_object_t *p_this )
for( i = 0; i < p_sys->i_effect; i++ )
{
#define p_effect p_sys->effect[i]
if( !strncmp( p_effect->psz_name, "spectrum", strlen( "spectrum" ) ) )
{
free( ( ( spectrum_data * )p_effect->p_data )->peaks );
free( ( ( spectrum_data * )p_effect->p_data )->prev_heights );
}
free( p_effect->p_data );
free( p_effect->psz_name );
free( p_effect->psz_args );
......
modules/visualization/visual/visual.h
View file @ df325fb8
......@@ -34,6 +34,12 @@ typedef struct visual_effect_t
int i_nb_chans;
} visual_effect_t ;
typedef struct spectrum_data
{
int *peaks;
int *prev_heights;
} spectrum_data;
/*****************************************************************************
* aout_filter_sys_t: visualizer audio filter method descriptor
......
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