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//
// main.swift
// iqconvert
//
// Created by Jacky Jack on 17/01/2025.
//
import Foundation
import ArgumentParser
enum SDRInputFormat {
case FMT_NONE
case FMT_U8
case FMT_I16
case FMT_U16
case FMT_SC16Q11
case FMT_F32
case FMT_WAV
}
//set the command line arguments
struct CommandLineArgs: ParsableCommand {
@Argument var inputFile:String = ""
@Argument var outputFile:String = ""
@Flag(help:"Version \(software_version)") var version: Bool = false
@Flag(name: .shortAndLong) var verbose: Bool = false
@Flag(name: .shortAndLong) var listFormats: Bool = false
}
let args = CommandLineArgs.parseOrExit()
if args.listFormats {
print("Supported input:")
print(" u8: RTLSDR ")
print(" u16: AirSpyHF ")
print(" u16r: AirSpy [not supported]")
print(" i16: AirSpy ")
print(" i16r: AirSpy [not supported]") //int16 real 1 * 16bit per sample
print(" sc16q11: BladeRF ")
print(" fc32r: AirSpy [not supported]") //float32 real 1 * 32bit per sample
print(" fc32: AirSpy [not supported]")
print("Supported output:")
print(" fc32: inspectrum ")
print(" wav: SDR#,sdr++ [not suppoprted]")
}
//var inputFilePath:String
//check if input file exists as parameter is given
if !checkIfFileExists(args.inputFile) {
print("Error: Input file \(args.inputFile) does not exist")
exit(1)
}
let fileReader = FileReader()
do {
try fileReader.open(filename: args.inputFile)
} catch {
print("ERROR: \(error) - Cant open file \(args.inputFile)")
exit(1)
}
var inputFormat = SDRInputFormat.FMT_NONE
//file is open lets detect extension
if let dotIndex = args.inputFile.lastIndex(of: ".") {
let index = args.inputFile.index(dotIndex, offsetBy: 1)
let fileExtension = String(args.inputFile[index..<args.inputFile.endIndex])
print("\(args.inputFile) extension \(fileExtension)")
let supportedExtensionList = ["u8","cu8","i16","ci16","u16","cu16","sc16q11"]
if supportedExtensionList.contains(fileExtension) {
if ["u8","cu8"].contains(fileExtension) {
inputFormat = SDRInputFormat.FMT_U8
} else if ["i16","ci16"].contains(fileExtension) {
inputFormat = SDRInputFormat.FMT_I16
} else if ["u16","cu16"].contains(fileExtension) {
inputFormat = SDRInputFormat.FMT_U16
} else if ["sc16q11"].contains(fileExtension) {
inputFormat = SDRInputFormat.FMT_SC16Q11
}
}
}
//outputfile Format
var outputFormat = SDRInputFormat.FMT_NONE
if let dotIndex = args.outputFile.lastIndex(of: ".") {
let index = args.outputFile.index(dotIndex, offsetBy: 1)
let fileExtension = String(args.outputFile[index..<args.outputFile.endIndex])
print("\(args.outputFile) extension \(fileExtension)")
let supportedExtensionList = ["f32","fc32"]
if supportedExtensionList.contains(fileExtension) {
if ["f32","fc32"].contains(fileExtension) {
outputFormat = SDRInputFormat.FMT_F32
} else if ["wav"].contains(fileExtension) {
outputFormat = SDRInputFormat.FMT_WAV
}
}
}
print("Input file format:\(inputFormat) output file format:\(outputFormat)")
//read from file and convert to file format
var data_u8:[UInt8] = []
var data_i16:[Int16] = []
var data_u16:[UInt16] = []
var outdata_f32:[Float32] = []
switch inputFormat {
case .FMT_U8:
do {
data_u8 = try fileReader.readAllUInt8()
} catch {
print("Reading file: \(error)")
exit(1)
}
break
case .FMT_U16:
do {
data_u16 = try fileReader.readAllUInt16()
} catch {
print("Reading file: \(error)")
exit(1)
}
break
case .FMT_I16:
do {
data_i16 = try fileReader.readAllInt16()
} catch {
print("Reading file: \(error)")
exit(1)
}
break
case .FMT_SC16Q11:
do {
print("FMT_SC16Q11")
data_i16 = try fileReader.readAllInt16()
} catch {
print("Reading file: \(error)")
exit(1)
}
break
default:
print("Unknow input file format")
}
//convert to output format
switch (inputFormat) {
case .FMT_U8:
if data_u8.count > 0 {
outdata_f32 = cnvU8toFloat32(data_u8)
} else {
print("No data in buffer")
}
break
case .FMT_U16:
if data_u16.count > 0 {
outdata_f32 = cnvU16toFloat32(data_u16)
} else {
print("No data in buffer")
}
break
case .FMT_I16:
if data_i16.count > 0 {
outdata_f32 = cnvI16toFloat32(data_i16)
} else {
print("No data in buffer")
}
break
case .FMT_SC16Q11:
if data_i16.count > 0 {
print("convert to FMT_SC16Q11")
outdata_f32 = cnvSC16Q11toFloat32(data_i16)
} else {
print("No data in buffer")
}
break
default:
print("Cant convert to unknown format")
}
// write to file
let fileWrite = FileWriter()
var file_ok = false
if (checkIfFileExists(args.outputFile)) {
do {
print("try to delet file for write")
try fileWrite.deleteForWrite(filename: args.outputFile)
} catch {
print("cant delete file \(error)")
exit(1)
}
} else {
do {
print("try to creating file")
try fileWrite.createForWrite(filename: args.outputFile)
} catch {
print("cant create file \(error)")
exit(1)
}
}
do {
try fileWrite.writeAll(outdata_f32)
} catch {
print("Cant write to file \(error)")
exit(1)
}
fileReader.close()
fileWrite.close()
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