From 1e096e55ca30dc80c3faa8d1ea36de13bc90cc6a Mon Sep 17 00:00:00 2001
From: Arturs Artamonovs <arturs.artamonovs@protonmail.com>
Date: Tue, 21 Jan 2025 09:24:13 +0000
Subject: iqconvert: initial implementation non-working

---
 Radio/Utils/WaterfallFile/NaiveFFT512.swift | 24 +-------
 Radio/Utils/WaterfallFile/main.swift        |  2 +
 Radio/Utils/iqconvert/main.swift            | 91 +++++++++++++++++++++++++++++
 3 files changed, 94 insertions(+), 23 deletions(-)
 create mode 100644 Radio/Utils/iqconvert/main.swift

(limited to 'Radio/Utils')

diff --git a/Radio/Utils/WaterfallFile/NaiveFFT512.swift b/Radio/Utils/WaterfallFile/NaiveFFT512.swift
index 0e6373a..510d784 100644
--- a/Radio/Utils/WaterfallFile/NaiveFFT512.swift
+++ b/Radio/Utils/WaterfallFile/NaiveFFT512.swift
@@ -46,28 +46,6 @@ class NaiveFFT512 {
         return transform_result
     }
     
-    func computeLine1024(_ processingArray: [Int8]) -> [Float] {
-        
-        var dataFloat = [Float](repeating: 0.0, count: NaiveFFT512.sampleCount*2)
-        
-        if processingArray.count != NaiveFFT512.sampleCount*2 {
-            print("Not supporting arrays not equail to \(NaiveFFT512.sampleCount)")
-            return []
-        }
-        
-        vDSP.convertElements(of: processingArray, to: &dataFloat)
-        //dataFloat = vDSP.add(127.0, dataFloat)
-        //print(dataFloat)
-        
-        //move from -127.0 to 128.0 range -1.0...1.0
-        //var adjusted = vDSP.divide(dataFloat, Float(sampleCount))
-        var adjusted = dataFloat
-        //print(adjusted)
-        
-        var transform_result = forwardDCT.transform(adjusted)
-        transform_result = vDSP.absolute(transform_result)
-        
-        return transform_result
-    }
+    
     
 }
diff --git a/Radio/Utils/WaterfallFile/main.swift b/Radio/Utils/WaterfallFile/main.swift
index 039be72..7717f1c 100644
--- a/Radio/Utils/WaterfallFile/main.swift
+++ b/Radio/Utils/WaterfallFile/main.swift
@@ -11,7 +11,9 @@ import ArgumentParser
 
 //set the command line arguments
 struct CommandLineArgs: ParsableCommand {
+    //input file format detected from file extension
     @Argument var inputFile:String = ""
+    //output file format detected from file extension
     @Argument var outputFile:String = ""
 }
 
diff --git a/Radio/Utils/iqconvert/main.swift b/Radio/Utils/iqconvert/main.swift
new file mode 100644
index 0000000..f619529
--- /dev/null
+++ b/Radio/Utils/iqconvert/main.swift
@@ -0,0 +1,91 @@
+//
+//  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_F32
+}
+
+//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   [not supported]")
+    print(" u16:     AirSpyHF [not supported]")
+    print(" u16r:    AirSpy   [not supported]")
+    print(" i16:     AirSpy   [not supported]")
+    print(" i16r:    AirSpy   [not supported]") //int16 real 1 * 16bit per sample
+    print(" sc16q11: BladeRF  [not supported]")
+    print(" fc32r:   AirSpy   [not supported]") //float32 real 1 * 32bit per sampl
+    print("Supported output:")
+    print(" fc32:    inspectrum, sdr++ [not supported]")
+    print(" wav:     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"]
+    if supportedExtensionList.contains(fileExtension) {
+        if ["u8","cu8"].contains(fileExtension) {
+            inputFormat = SDRInputFormat.FMT_U8
+        }
+    }
+}
+
+//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
+        }
+    }
+}
+
+print("Input file format:\(inputFormat) output file format:\(outputFormat)")
+
+
+
+fileReader.close()
+
+
-- 
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