Update flux_util.

libAudioFlux · Dec 11, 2023 · 2290dd4 · 2290dd4
1 parent 1b10379
commit 2290dd4
Show file tree

Hide file tree

Showing 2 changed files with 38 additions and 0 deletions.
diff --git a/src/util/flux_util.c b/src/util/flux_util.c
@@ -433,6 +433,41 @@ void util_log10Compress(float *vArr1,float *gamma,int length,float *vArr2){
 	__vlog10_compress(vArr1, gamma,NULL, length, vArr2);
 }
 
+// temproal, return maxDb, percent is < -base
+float util_temproal(float *dataArr,int length,float base,float *avgValue,float *percentValue){
+	float max=-100;
+
+	int count=0;
+	float value=0;
+	float total=0;
+
+	if(!dataArr||!length){
+		return 0;
+	}
+
+	for(int i=0;i<length;i++){
+		value=20*log10f(fabsf(dataArr[i])+1e-8);
+		if(value<-36){
+			value=-36;
+		}
+
+		if(max<value){
+			max=value;
+		}
+
+		total+=value;
+
+		if(value>-base){
+			count++;
+		}
+	}
+
+	*avgValue=total/length;
+	*percentValue=1.0*(length-count)/length;
+
+	return max;
+}
+
 /***
 	x=1 1
 	0<x<1 

diff --git a/src/util/flux_util.h b/src/util/flux_util.h
@@ -54,6 +54,9 @@ void util_magToAbsDB(float *pArr,int length,int fftLength,int isNorm,float min,f
 void util_logCompress(float *vArr1,float *gamma,int length,float *vArr2);
 void util_log10Compress(float *vArr1,float *gamma,int length,float *vArr2);
 
+// temproal, return maxDb, percent is < -base
+float util_temproal(float *dataArr,int length,float base,float *avgDb,float *percent);
+
 // gamma eps=1e-5
 float util_gamma(float x,float *eps);
 long double util_gammal(long double x,long double *eps);