Input channel. Output in same format as dump978 cmdline tool.

dump978.go

@@ -27,6 +27,9 @@ import "unsafe"
 // Current version.
 var PackageVersion = "v0.1"
 
+// InChan is a buffered input channel for raw data.
+var InChan = make(chan []byte, 100)
+
 type UserCbT func(C.char, *C.uint8_t, C.int)
 
 // Dump978Init must be the first function called in this package.
@@ -38,3 +41,10 @@ func Dump978Init() {
 func ProcessData(buf []byte) {
 	C.process_data((*C.char)(unsafe.Pointer(&buf[0])), C.int(len(buf)))
 }
+
+func ProcessDataFromChannel() {
+	for {
+		inData := <-InChan
+		ProcessData(inData)
+	}
+}

exports.go

@@ -7,6 +7,7 @@
 package dump978
 
 import (
+	"fmt"
 	"reflect"
 	"unsafe"
 )
@@ -17,21 +18,24 @@ import (
 */
 import "C"
 
-// outChan is a buffered output channel for demodulated data.
+// OutChan is a buffered output channel for demodulated data.
-var OutChan = make(chan []byte, 100)
+var OutChan = make(chan string, 100)
 
 //export dump978Cb
 func dump978Cb(updown C.char, data *C.uint8_t, length C.int) {
-	outData := make([]byte, length+1)
 	// c buffer to go slice without copying
 	var buf []byte
-	b := (*reflect.SliceHeader)((unsafe.Pointer(&data)))
+
+	b := (*reflect.SliceHeader)((unsafe.Pointer(&buf)))
 	b.Cap = int(length)
 	b.Len = int(length)
 	b.Data = uintptr(unsafe.Pointer(data))
 
 	// copy incoming to outgoing
-	copy(outData, buf[1:])
+	outData := string(updown)
-	outData[0] = byte(updown)
+	for i := 0; i < int(length); i++ {
+		outData += fmt.Sprintf("%02x", buf[i])
+	}
+
 	OutChan <- outData
 }