kopia lustrzana https://github.com/cyoung/stratux
47 wiersze
1.0 KiB
Go
47 wiersze
1.0 KiB
Go
// Copyright (c) 2015 Joseph D Poirier
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// Distributable under the terms of The New BSD License
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// that can be found in the LICENSE file.
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// Package godump978 wraps libdump978, a 978MHz UAT demodulator.
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package godump978
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import (
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"fmt"
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"reflect"
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"unsafe"
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"strconv"
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)
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/*
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#cgo CFLAGS: -L../
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#include <stdint.h>
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#include "../dump978/dump978.h"
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*/
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import "C"
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// OutChan is a buffered output channel for demodulated data.
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var OutChan = make(chan string, 100)
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//export dump978Cb
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func dump978Cb(updown C.char, data *C.uint8_t, length C.int, rs_errors C.int, signal_strength C.int) {
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// c buffer to go slice without copying
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var buf []byte
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b := (*reflect.SliceHeader)((unsafe.Pointer(&buf)))
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b.Cap = int(length)
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b.Len = int(length)
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b.Data = uintptr(unsafe.Pointer(data))
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// copy incoming to outgoing
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outData := string(updown)
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for i := 0; i < int(length); i++ {
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outData += fmt.Sprintf("%02x", buf[i])
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}
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outData += ";rs=" + strconv.Itoa(int(rs_errors)) + ";ss=" + strconv.Itoa(int(signal_strength)) + ";"
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OutChan <- outData
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}
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