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//
// main.swift
// GenSin
//
// Created by Jacky Jack on 21/02/2025.
//
import Foundation
import ArgumentParser
/*
Takes as input
*/
enum OutputFormat {
case FMT_NONE
case FMT_U8
case FMT_S8
case FMT_U16
case FMT_S16
case FMT_SC16Q11
case FMT_F32
case FMT_WAV_INT16
case FMT_WAV_F32
}
print("gen sin")
//set the command line arguments
struct CommandLineArgs: ParsableCommand {
@Argument var outputFile:String = ""
@Flag(help:"Version \(software_version)") var version: Bool = false
@Flag(name: .shortAndLong) var verbose: Bool = false
@Option(name:.shortAndLong) var samplerate: Int = 1000
@Option(name:.shortAndLong) var amplitude: Float = 1.0
@Option(name:.shortAndLong) var freq: Int = 10
@Option(name:.shortAndLong) var num: Int = 100000
//@Option(name:.shortAndLong) var type: String = "sine"
@Flag(name: .shortAndLong) var listFormats: Bool = false
}
let args = CommandLineArgs.parseOrExit()
if args.listFormats {
print("Supported output:")
print(" s8,u8: [DONE]")
print(" s16,u16: not")
print(" s16q11: not")
print(" f32: not ")
print(" wav i16, fc32: not")
}
//outputfile Format
var outputFormat = OutputFormat.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 = ["s8","u8","s16","u16"]
if supportedExtensionList.contains(fileExtension) {
if ["s8"].contains(fileExtension) {
outputFormat = OutputFormat.FMT_S8
} else if ["u8"].contains(fileExtension) {
outputFormat = OutputFormat.FMT_U8
} else if ["s16"].contains(fileExtension) {
outputFormat = OutputFormat.FMT_S16
} else if ["u16"].contains(fileExtension) {
outputFormat = OutputFormat.FMT_U16
}// else if ["wav"].contains(fileExtension) {
// outputFormat = OutputFormat.FMT_WAV_F32
//}
else {
print("Unknown output format")
}
}
}
var outdata_s8:[Int8] = []
var outdata_u8:[UInt8] = []
var outdata_s16:[Int16] = []
var outdata_u16:[UInt16] = []
var outdata_f32:[Float32] = []
//generate signal
outdata_f32 = genSin(args.samplerate, args.freq, args.amplitude, 0.0, args.num)
if outputFormat == OutputFormat.FMT_S8 {
outdata_s8 = cnvFloat32ToInt8(outdata_f32)
} else if outputFormat == OutputFormat.FMT_U8 {
outdata_u8 = cnvFloat32ToUInt8(outdata_f32)
} else if outputFormat == OutputFormat.FMT_S16 {
outdata_s16 = cnvFloat32ToInt16(outdata_f32)
} else if outputFormat == OutputFormat.FMT_U16 {
outdata_u16 = cnvFloat32ToUInt16(outdata_f32)
} else {
print("Unimplemented output format converter")
}
// 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 {
if outputFormat == OutputFormat.FMT_S8 {
try fileWrite.writeAll(outdata_s8)
} else if outputFormat == OutputFormat.FMT_U8 {
try fileWrite.writeAll(outdata_u8)
} else if outputFormat == OutputFormat.FMT_S16 {
try fileWrite.writeAll(outdata_s16)
} else if outputFormat == OutputFormat.FMT_U16 {
try fileWrite.writeAll(outdata_u16)
} else {
print("Not supported write type")
}
} catch {
print("Cant write to file \(error)")
exit(1)
}
fileWrite.close()
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