# include "config.h"
#endif
#include <string.h>
+#include <math.h>
#include <vlc_common.h>
#include <vlc_plugin.h>
static void LoadBarGraph( vlc_object_t *, BarGraph_t *);
void parse_i_values( BarGraph_t *p_BarGraph, char *i_values);
+static float iec_scale(float dB);
/**
* Open the sub source
{
VLC_UNUSED(p_this);
picture_t *p_pic;
- int i,j;
+ int i, j, pi;
int i_width = 0;
int i_line;
- int moinsTrois, moinsCinq, moinsSept, moinsDix, moinsVingt;
+ int minus8, minus10, minus18, minus20, minus30, minus40, minus50, minus60;
if (nbChannels == 0) {
i_width = 20;
} else {
i_width = 2 * nbChannels * barWidth + 10;
}
-
- moinsTrois = 0.71*scale + 20;
- moinsCinq = 0.56*scale + 20;
- moinsSept = 0.45*scale + 20;
- moinsDix = 0.32*scale + 20;
- moinsVingt = 0.1*scale + 20;
+ minus8 = iec_scale(-8)*scale + 20;
+ minus10 = iec_scale(-10)*scale + 20;
+ minus18 = iec_scale(-18)*scale + 20;
+ minus20 = iec_scale(-20)*scale + 20;
+ minus30 = iec_scale(-30)*scale + 20;
+ minus40 = iec_scale(-40)*scale + 20;
+ minus50 = iec_scale(-50)*scale + 20;
+ minus60 = iec_scale(-60)*scale + 20;
p_pic = picture_New(VLC_FOURCC('Y','U','V','A'), i_width+20, scale+30, 1, 1);
+
+#define DrawLine(a,b,Y,U,V,A) \
+ for (i=a; i<b; i++) {\
+ *(p_pic->p[0].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[0].i_pitch + i ) = Y;\
+ *(p_pic->p[1].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[1].i_pitch + i ) = U;\
+ *(p_pic->p[2].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[2].i_pitch + i ) = V;\
+ *(p_pic->p[3].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[3].i_pitch + i ) = A; \
+ }
+#define DrawLineBlack(a,b) DrawLine(a,b,0,128,128,0xFF)
+#define DrawLineWhite(a,b) DrawLine(a,b,255,128,128,0xFF)
+
// blacken the whole picture
for( i = 0 ; i < p_pic->i_planes ; i++ )
{
p_pic->p[i].i_visible_lines * p_pic->p[i].i_pitch );
}
+
// side bar
for ( i_line = 20; i_line < scale+20; i_line++ ) {
-
-#define DrawPointsBlack(a,b) {\
- for (i=a; i<b; i++) {\
- *(p_pic->p[0].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[0].i_pitch + i ) = 0x00; \
- *(p_pic->p[1].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[1].i_pitch + i ) = 128; \
- *(p_pic->p[2].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[2].i_pitch + i ) = 128; \
- *(p_pic->p[3].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[3].i_pitch + i ) = 0xFF; \
- }\
- }
-#define DrawPointsWhite(a,b) {\
- for (i=a; i<b; i++) {\
- *(p_pic->p[0].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[0].i_pitch + i ) = 0xFF;\
- *(p_pic->p[1].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[1].i_pitch + i ) = 128;\
- *(p_pic->p[2].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[2].i_pitch + i ) = 128;\
- *(p_pic->p[3].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[3].i_pitch + i ) = 0xFF; \
- }\
- }
-
// vertical line
- DrawPointsBlack(20,22);
- DrawPointsWhite(22,24);
+ DrawLineBlack(20,22);
+ DrawLineWhite(22,24);
- // -3dB
- if (i_line == moinsTrois - 2) {
- // 3
- DrawPointsBlack(16,19);
+ // -10dB
+ if (i_line == minus10 - 2) {
+ // 1
+ DrawLineBlack(14,15);
+ // 0
+ DrawLineBlack(16,19);
}
- if (i_line == moinsTrois - 1) {
- // 3
- DrawPointsBlack(18,19);
+ if (i_line == minus10 - 1) {
+ // 1
+ DrawLineBlack(14,15);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsWhite(24,27);
+ DrawLineWhite(24,27); //White
}
- if (i_line == moinsTrois) {
- // 3
- DrawPointsBlack(16,19);
+ if (i_line == minus10) {
+ // 1
+ DrawLineBlack(14,15);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsBlack(24,27);
+ DrawLineBlack(24,27);
}
- if (i_line == moinsTrois + 1) {
- // 3
- DrawPointsBlack(18,19);
+ if (i_line == minus10 + 1) {
+ // 1
+ DrawLineBlack(14,15);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsBlack(24,27);
+ DrawLineBlack(24,27);
}
- if (i_line == moinsTrois + 2) {
- // 3
- DrawPointsBlack(16,19);
+ if (i_line == minus10 + 2) {
+ // 1
+ DrawLineBlack(14,15);
+ // 0
+ DrawLineBlack(16,19);
}
- // -5dB
- if (i_line == moinsCinq - 2) {
- // 5
- DrawPointsBlack(16,19);
+ // -20dB
+ if (i_line == minus20 - 2) {
+ // 2
+ DrawLineBlack(12,15);
+ // 0
+ DrawLineBlack(16,19);
}
- if (i_line == moinsCinq - 1) {
- // 5
- DrawPointsBlack(18,19);
+ if (i_line == minus20 - 1) {
+ // 2
+ DrawLineBlack(12,13);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsWhite(24,27);
+ DrawLineWhite(24,27); //White
}
- if (i_line == moinsCinq) {
- // 5
- DrawPointsBlack(16,19);
+ if (i_line == minus20) {
+ // 2
+ DrawLineBlack(12,15);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsBlack(24,27);
+ DrawLineBlack(24,27);
}
- if (i_line == moinsCinq + 1) {
- // 5
- DrawPointsBlack(16,17);
+ if (i_line == minus20 + 1) {
+ // 2
+ DrawLineBlack(14,15);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsBlack(24,27);
+ DrawLineBlack(24,27);
}
- if (i_line == moinsCinq + 2) {
- // 5
- DrawPointsBlack(16,19);
+ if (i_line == minus20 + 2) {
+ // 2
+ DrawLineBlack(12,15);
+ // 0
+ DrawLineBlack(16,19);
}
- // -7dB
- if (i_line == moinsSept - 2) {
- // 7
- DrawPointsBlack(18,19);
+ // -30dB
+ if (i_line == minus30 - 2) {
+ // 3
+ DrawLineBlack(12,15);
+ // 0
+ DrawLineBlack(16,19);
}
- if (i_line == moinsSept - 1) {
- // 7
- DrawPointsBlack(18,19);
+ if (i_line == minus30 - 1) {
+ // 3
+ DrawLineBlack(14,15);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsWhite(24,27);
+ DrawLineWhite(24,27); //White
}
- if (i_line == moinsSept) {
- // 7
- DrawPointsBlack(18,19);
+ if (i_line == minus30) {
+ // 3
+ DrawLineBlack(12,15);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsBlack(24,27);
+ DrawLineBlack(24,27);
}
- if (i_line == moinsSept + 1) {
- // 7
- DrawPointsBlack(18,19);
+ if (i_line == minus30 + 1) {
+ // 3
+ DrawLineBlack(14,15);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsBlack(24,27);
+ DrawLineBlack(24,27);
}
- if (i_line == moinsSept + 2) {
- // 7
- DrawPointsBlack(16,19);
+ if (i_line == minus30 + 2) {
+ // 3
+ DrawLineBlack(12,15);
+ // 0
+ DrawLineBlack(16,19);
}
-
- // -10dB
- if (i_line == moinsDix - 2) {
- // 1
- DrawPointsBlack(14,15);
+ // -40dB
+ if (i_line == minus40 - 2) {
+ // 4
+ DrawLineBlack(14,15);
// 0
- DrawPointsBlack(16,19);
+ DrawLineBlack(16,19);
}
- if (i_line == moinsDix - 1) {
- // 1
- DrawPointsBlack(14,15);
+ if (i_line == minus40 - 1) {
+ // 4
+ DrawLineBlack(14,15);
// 0
- DrawPointsBlack(16,17);
- DrawPointsBlack(18,19);
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsWhite(24,27);
+ DrawLineWhite(24,27); // white
}
- if (i_line == moinsDix) {
- // 1
- DrawPointsBlack(14,15);
+ if (i_line == minus40) {
+ // 4
+ DrawLineBlack(12,15);
// 0
- DrawPointsBlack(16,17);
- DrawPointsBlack(18,19);
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsBlack(24,27);
+ DrawLineBlack(24,27);
}
- if (i_line == moinsDix + 1) {
- // 1
- DrawPointsBlack(14,15);
+ if (i_line == minus40 + 1) {
+ // 4
+ DrawLineBlack(12,13);
+ DrawLineBlack(14,15);
// 0
- DrawPointsBlack(16,17);
- DrawPointsBlack(18,19);
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsBlack(24,27);
+ DrawLineBlack(24,27);
}
- if (i_line == moinsDix + 2) {
- // 1
- DrawPointsBlack(14,15);
+ if (i_line == minus40 + 2) {
+ // 4
+ DrawLineBlack(12,13);
+ DrawLineBlack(14,15);
// 0
- DrawPointsBlack(16,19);
+ DrawLineBlack(16,19);
}
- // -20dB
- if (i_line == moinsVingt - 2) {
- // 2
- DrawPointsBlack(12,15);
+ // -50dB
+ if (i_line == minus50 - 2) {
+ // 5
+ DrawLineBlack(12,15);
// 0
- DrawPointsBlack(16,19);
+ DrawLineBlack(16,19);
}
- if (i_line == moinsVingt - 1) {
- // 2
- DrawPointsBlack(12,13);
+ if (i_line == minus50 - 1) {
+ // 5
+ DrawLineBlack(14,15);
// 0
- DrawPointsBlack(16,17);
- DrawPointsBlack(18,19);
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsWhite(24,27);
+ DrawLineWhite(24,27); //White
}
- if (i_line == moinsVingt) {
- // 2
- DrawPointsBlack(12,15);
+ if (i_line == minus50) {
+ // 5
+ DrawLineBlack(12,15);
// 0
- DrawPointsBlack(16,17);
- DrawPointsBlack(18,19);
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsBlack(24,27);
+ DrawLineBlack(24,27);
}
- if (i_line == moinsVingt + 1) {
- // 2
- DrawPointsBlack(14,15);
+ if (i_line == minus50 + 1) {
+ // 5
+ DrawLineBlack(12,13);
// 0
- DrawPointsBlack(16,17);
- DrawPointsBlack(18,19);
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
// limit
- DrawPointsBlack(24,27);
+ DrawLineBlack(24,27);
}
- if (i_line == moinsVingt + 2) {
+ if (i_line == minus50 + 2) {
// 2
- DrawPointsBlack(12,15);
+ DrawLineBlack(12,15);
+ // 0
+ DrawLineBlack(16,19);
+ }
+ // -60dB
+ if (i_line == minus60 - 2) {
+ // 6
+ DrawLineBlack(12,15);
// 0
- DrawPointsBlack(16,19);
+ DrawLineBlack(16,19);
+ }
+ if (i_line == minus60 - 1) {
+ // 6
+ DrawLineBlack(12,13);
+ DrawLineBlack(14,15);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
+ // limit
+ DrawLineWhite(24,27); //White
+ }
+ if (i_line == minus60) {
+ // 6
+ DrawLineBlack(12,15);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
+ // limit
+ DrawLineBlack(24,27);
+ }
+ if (i_line == minus60 + 1) {
+ // 6
+ DrawLineBlack(12,13);
+ // 0
+ DrawLineBlack(16,17);
+ DrawLineBlack(18,19);
+ // limit
+ DrawLineBlack(24,27);
}
+ if (i_line == minus60 + 2) {
+ // 6
+ DrawLineBlack(12,15);
+ // 0
+ DrawLineBlack(16,19);
+ }
+ }
+#define drawPoint(offset,y,u,v,a) \
+ *(p_pic->p[0].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[0].i_pitch + offset ) = y; \
+ *(p_pic->p[1].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[1].i_pitch + offset ) = u; \
+ *(p_pic->p[2].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[2].i_pitch + offset ) = v; \
+ *(p_pic->p[3].p_pixels + (scale + 30 - i_line - 1) * p_pic->p[3].i_pitch + offset ) = a;
- }
// draw the bars and channel indicators
for (i=0; i<nbChannels; i++) {
- for( j = barWidth+20 ; j < 2*barWidth+20; j++)
+ pi = 25 + ((i+1)*5) + (i*barWidth) ; // 25 separació amb indicador, 5 separació entre barres
+
+ for( j = pi; j < pi + barWidth; j++)
{
// channel indicators
- for ( i_line = 12; i_line < 18; i_line++ ) {
- // white
- *(p_pic->p[0].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[0].i_pitch +
- ( (2*i*barWidth)+j ) ) = 255;
- *(p_pic->p[1].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[1].i_pitch +
- ( (2*i*barWidth)+j ) ) = 128;
- *(p_pic->p[2].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[2].i_pitch +
- ( (2*i*barWidth)+j ) ) = 128;
- *(p_pic->p[3].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[3].i_pitch +
- ( (2*i*barWidth)+j )) = 0xFF;
+ for ( i_line = 12; i_line < 20; i_line++ ) {
+ if( alarm ) {
+ drawPoint(j,76,85,0xFF,0xFF); // red
+ }
+ else {
+ drawPoint(j,0,128,128,0xFF); // black DrawLine(pi,pf,0xFF,128,128,0xFF);
+ }
}
+
// bars
for( i_line = 20; i_line < i_values[i]+20; i_line++ )
{
- if (i_line < moinsDix) { // green if < -10 dB
- *(p_pic->p[0].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[0].i_pitch +
- ( (2*i*barWidth)+j ) ) = 150;
- *(p_pic->p[1].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[1].i_pitch +
- ( (2*i*barWidth)+j ) ) = 44;
- *(p_pic->p[2].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[2].i_pitch +
- ( (2*i*barWidth)+j ) ) = 21;
- *(p_pic->p[3].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[3].i_pitch +
- ( (2*i*barWidth)+j )) = 0xFF;
- } else if (i_line < moinsTrois) { // yellow if > -10dB and < -3dB
- *(p_pic->p[0].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[0].i_pitch +
- ( (2*i*barWidth)+j ) ) = 226;
- *(p_pic->p[1].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[1].i_pitch +
- ( (2*i*barWidth)+j ) ) = 1;
- *(p_pic->p[2].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[2].i_pitch +
- ( (2*i*barWidth)+j ) ) = 148;
- *(p_pic->p[3].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[3].i_pitch +
- ( (2*i*barWidth)+j )) = 0xFF;
- } else { // red if > -3 dB
- *(p_pic->p[0].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[0].i_pitch +
- ( (2*i*barWidth)+j ) ) = 76;
- *(p_pic->p[1].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[1].i_pitch +
- ( (2*i*barWidth)+j ) ) = 85;
- *(p_pic->p[2].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[2].i_pitch +
- ( (2*i*barWidth)+j ) ) = 0xFF;
- *(p_pic->p[3].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[3].i_pitch +
- ( (2*i*barWidth)+j )) = 0xFF;
+ if (i_line < minus18) { // green if < -18 dB
+ drawPoint(j,150,44,21,0xFF);
+ //DrawLine(pi,pf,150,44,21,0xFF);
+ } else if (i_line < minus8) { // yellow if > -18dB and < -8dB
+ drawPoint(j,226,1,148,0xFF);
+ //DrawLine(pi,pf,226,1,148,0xFF);
+ } else { // red if > -8 dB
+ drawPoint(j,76,85,0xFF,0xFF);
+ //DrawLine(pi,pf,76,85,255,0xFF);
}
}
- }
- }
-
-
-
- if (alarm) {// draw the alarm square
- // bottom
- for ( i_line = 0; i_line < 10; i_line++ ) {
- for (i=0; i<i_width+20; i++) {
- *(p_pic->p[0].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[0].i_pitch + i ) = 76;
- *(p_pic->p[1].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[1].i_pitch + i ) = 85;
- *(p_pic->p[2].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[2].i_pitch + i ) = 0xFF;
- *(p_pic->p[3].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[3].i_pitch + i ) = 0xFF;
- }
- }
- // top
- for ( i_line = scale+21; i_line < scale+30; i_line++ ) {
- for (i=0; i<i_width+20; i++) {
- *(p_pic->p[0].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[0].i_pitch + i ) = 76;
- *(p_pic->p[1].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[1].i_pitch + i ) = 85;
- *(p_pic->p[2].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[2].i_pitch + i ) = 0xFF;
- *(p_pic->p[3].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[3].i_pitch + i ) = 0xFF;
- }
- }
- // sides
- for ( i_line = 9; i_line < scale+21; i_line++ ) {
- for (i=0; i<10; i++) {
- *(p_pic->p[0].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[0].i_pitch + i ) = 76;
- *(p_pic->p[1].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[1].i_pitch + i ) = 85;
- *(p_pic->p[2].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[2].i_pitch + i ) = 0xFF;
- *(p_pic->p[3].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[3].i_pitch + i ) = 0xFF;
- }
- for (i=i_width+11; i<i_width+20; i++) {
- *(p_pic->p[0].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[0].i_pitch + i ) = 76;
- *(p_pic->p[1].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[1].i_pitch + i ) = 85;
- *(p_pic->p[2].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[2].i_pitch + i ) = 0xFF;
- *(p_pic->p[3].p_pixels +
- (scale + 30 - i_line - 1) *
- p_pic->p[3].i_pitch + i ) = 0xFF;
+ // bars no signal
+ for( ; i_line < scale+20; i_line++ )
+ {
+ if (i_line < minus18) { // green if < -18 dB
+ drawPoint(j,74,85,74,0xFF);
+ //DrawLine(pi,pf,74,85,74,0xFF);
+ } else if (i_line < minus8) { // yellow if > -18dB and < -8dB
+ drawPoint(j,112,64,138,0xFF);
+ //DrawLine(pi,pf,112,64,138,0xFF);
+ } else { // red if > -8 dB
+ drawPoint(j,37,106,191,0xFF);
+ //DrawLine(pi,pf,37,106,191,0xFF);
+ }
}
}
}
-
return p_pic;
}
char* res = NULL;
char delim[] = ":";
char* tok;
+ float db;
p_BarGraph->nbChannels = 0;
p_BarGraph->i_values = NULL;
p_BarGraph->nbChannels++;
p_BarGraph->i_values = xrealloc(p_BarGraph->i_values,
p_BarGraph->nbChannels*sizeof(int));
- p_BarGraph->i_values[p_BarGraph->nbChannels-1] = VLC_CLIP( atof(res)*p_BarGraph->scale, 0, p_BarGraph->scale );
+ db = log10(atof(res)) * 20;
+ p_BarGraph->i_values[p_BarGraph->nbChannels-1] = VLC_CLIP( iec_scale(db)*p_BarGraph->scale, 0, p_BarGraph->scale );
res = strtok_r(NULL, delim, &tok);
}
}
+
+/*****************************************************************************
+ * IEC 268-18 Source: meterbridge
+ *****************************************************************************/
+static float iec_scale(float dB)
+{
+ float fScale = 1.0f;
+
+ if (dB < -70.0f)
+ fScale = 0.0f;
+ else if (dB < -60.0f)
+ fScale = (dB + 70.0f) * 0.0025f;
+ else if (dB < -50.0f)
+ fScale = (dB + 60.0f) * 0.005f + 0.025f;
+ else if (dB < -40.0)
+ fScale = (dB + 50.0f) * 0.0075f + 0.075f;
+ else if (dB < -30.0f)
+ fScale = (dB + 40.0f) * 0.015f + 0.15f;
+ else if (dB < -20.0f)
+ fScale = (dB + 30.0f) * 0.02f + 0.3f;
+ else if (dB < -0.001f || dB > 0.001f) /* if (dB < 0.0f) */
+ fScale = (dB + 20.0f) * 0.025f + 0.5f;
+
+ return fScale;
+}
projects / vlc / commitdiff