Add UI to record a voice message from the composer toolbar (#1892)

ElementX/Sources/Services/Audio/AudioConverter.swift

@@ -0,0 +1,49 @@
+//
+// Copyright 2023 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import AVFoundation
+import Foundation
+import SwiftOGG
+
+enum AudioConverterError: Error {
+    case conversionFailed(Error?)
+}
+
+enum AudioConverterPreferredFileExtension: String {
+    case mpeg4aac = "m4a"
+    case ogg
+}
+
+struct AudioConverter: AudioConverterProtocol {
+    func convertToOpusOgg(sourceURL: URL, destinationURL: URL) throws {
+        do {
+            MXLog.debug("converting \(sourceURL) to \(destinationURL)")
+            try OGGConverter.convertM4aFileToOpusOGG(src: sourceURL, dest: destinationURL)
+        } catch {
+            MXLog.error("failed to convert to OpusOgg: \(error)")
+            throw AudioConverterError.conversionFailed(error)
+        }
+    }
+    
+    func convertToMPEG4AAC(sourceURL: URL, destinationURL: URL) throws {
+        do {
+            try OGGConverter.convertOpusOGGToM4aFile(src: sourceURL, dest: destinationURL)
+        } catch {
+            MXLog.error("failed to convert to MPEG4AAC: \(error)")
+            throw AudioConverterError.conversionFailed(error)
+        }
+    }
+}