5 files changed, 0 insertions, 110 deletions
diff --git a/filt/Kconfig b/filt/Kconfig
deleted file mode 100644
index e69de29..0000000
--- a/filt/Kconfig
+++ /dev/null
diff --git a/filt/filt.h b/filt/filt.h
deleted file mode 100644
index 9ce2caa..0000000
--- a/filt/filt.h
+++ /dev/null
@@ -1,16 +0,0 @@
-#ifndef __RADIOLA_FILT_H
-#define __RADIOLA_FILT_H
-
-#include <stdlib.h>
-#include <stdio.h>
-#include <stdint.h>
-#include <string.h>
-#include <unistd.h>
-
-//fifth order filter from rtlsdr
-void filt_5th(int16_t *data, int length, int16_t *hist);
-
-//delay filtering from https://github.com/dpiponi/mini_fm.git
-void filt_delay( uint8_t *buf, int buf_len );
-
-#endif
-\ No newline at end of file
diff --git a/filt/filt_5th.c b/filt/filt_5th.c
deleted file mode 100644
index 23d5aab..0000000
--- a/filt/filt_5th.c
+++ /dev/null
@@ -1,32 +0,0 @@
-#include "filt.h"
-
-void f_5th(int16_t *data, int length, int16_t *hist)
-/* for half of interleaved data */
-{
-	int i;
-	int16_t a, b, c, d, e, f;
-	a = hist[1];
-	b = hist[2];
-	c = hist[3];
-	d = hist[4];
-	e = hist[5];
-	f = data[0];
-	/* a downsample should improve resolution, so don't fully shift */
-	data[0] = (a + (b+e)*5 + (c+d)*10 + f) >> 4;
-	for (i=4; i<length; i+=4) {
-		a = c;
-		b = d;
-		c = e;
-		d = f;
-		e = data[i-2];
-		f = data[i];
-		data[i/2] = (a + (b+e)*5 + (c+d)*10 + f) >> 4;
-	}
-	/* archive */
-	hist[0] = a;
-	hist[1] = b;
-	hist[2] = c;
-	hist[3] = d;
-	hist[4] = e;
-	hist[5] = f;
-}
diff --git a/filt/filt_delay.c b/filt/filt_delay.c
deleted file mode 100644
index 53da0b0..0000000
--- a/filt/filt_delay.c
+++ /dev/null
@@ -1,51 +0,0 @@
-#include "filt.h"
-
-//delay filtering
-void filt_delay( uint8_t *buf, int buf_len )
-{
-	//delay length
-	const int n=10;
-	
-	int i=0;
-	uint32_t cycle=0;
-	uint32_t avg_i=0, avg_q=0;
-	uint32_t cyc_buffer_i[n],delay_i=0;
-	uint32_t cyc_buffer_q[n],delay_q=0;
-	uint8_t in1=0,in2=0,out1=0,out2=0;
-
-	memset( cyc_buffer_i, 0, n*sizeof(uint32_t) );
-	memset( cyc_buffer_q, 0, n*sizeof(uint32_t) );
-
-	//for (i=0; i<(buf_len-(n*2));i+=2)
-	for (i=0 ; i<(buf_len-1) ; i+=2 )
-	//for (i=0; i<1000; i+=2)
-	{
-		in1 = buf[i];
-		in2 = buf[i+1];
-
-		//average
-		avg_i += (uint32_t)in1;
-		avg_q += (uint32_t)in2;
-
-		delay_i = cyc_buffer_i[cycle];
-		delay_q = cyc_buffer_q[cycle];
-		
-		cyc_buffer_i[cycle] = avg_i;
-		cyc_buffer_q[cycle] = avg_q;
-		cycle = cycle + 1;
-		if ( cycle >= n )
-		{
-			cycle = 0;
-		}
-
-		out1 = (avg_i - delay_i)/n;
-		out2 = (avg_q - delay_q)/n;
-
-		buf[i]   = out1;
-		buf[i+1] = out2;
-
-		//printf("%d,avg=[%d,%d],delay=[%d,%d],in=[%d,%d],out=[%d,%d]\n",
-		//	cycle, avg_i,avg_q,delay_i,delay_q,in1,in2,out1,out2);
-
-	}
-}
-\ No newline at end of file
diff --git a/filt/make.mk b/filt/make.mk
deleted file mode 100644
index be7468f..0000000
--- a/filt/make.mk
+++ /dev/null
@@ -1,11 +0,0 @@
-DIR_FILT = filt/
-SOURCES_FILT += filt/filt_5th.c filt/filt_delay.c
-OBJECTS_FILT += $(SOURCES_FILT:.c=.o)
-LDFLAGS += 
-LDFLAGS_BSD +=
-
-
-OBJECTS_DIR_FILT += $(subst $(DIR_FILT),$(BUILD_DIR)$(DIR_FILT),$(OBJECTS_FILT))
-
-OBJECTS += $(OBJECTS_FILT)
-OBJECTS_FINAL += $(OBJECTS_DIR_FILT)
-\ No newline at end of file