#4094 - Added Opus Ogg support through FFmpegKit backed media conversion.

2026-04-19 08:03:50 +02:00 · 2021-06-24 12:28:50 +03:00
parent 3ed8e348cd
commit 71fb68dbfc
7 changed files with 106 additions and 23 deletions
@@ -0,0 +1,65 @@
+// 
+// Copyright 2021 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 Foundation
+
+enum VoiceMessageAudioConverterError: Error {
+    case generic(String)
+    case cancelled
+}
+
+struct VoiceMessageAudioConverter {
+    static func convertToOpusOgg(sourceURL: URL, destinationURL: URL, completion: @escaping (Result<Void, VoiceMessageAudioConverterError>) -> Void) {
+        let command = "-hide_banner -y -i \"\(sourceURL.path)\" -c:a libopus \"\(destinationURL.path)\""
+        executeCommand(command, completion: completion)
+    }
+    
+    static func convertToMPEG4AAC(sourceURL: URL, destinationURL: URL, completion: @escaping (Result<Void, VoiceMessageAudioConverterError>) -> Void) {
+        let command = "-hide_banner -y -i \"\(sourceURL.path)\" -c:a aac_at \"\(destinationURL.path)\""
+        executeCommand(command, completion: completion)
+    }
+    
+    static private func executeCommand(_ command: String, completion: @escaping (Result<Void, VoiceMessageAudioConverterError>) -> Void) {
+        FFmpegKitConfig.setLogLevel(0)
+        
+        FFmpegKit.executeAsync(command) { session in
+            guard let session = session else {
+                completion(.failure(.generic("Invalid session")))
+                return
+            }
+            
+            guard let returnCode = session.getReturnCode() else {
+                completion(.failure(.generic("Invalid return code")))
+                return
+            }
+            
+            DispatchQueue.main.async {
+                if returnCode.isSuccess() {
+                    completion(.success(()))
+                } else if returnCode.isCancel() {
+                    completion(.failure(.cancelled))
+                } else {
+                    completion(.failure(.generic(String(returnCode.getValue()))))
+                    MXLog.error("""
+                        Failed converting voice message with state: \(String(describing: FFmpegKitConfig.sessionState(toString: session.getState()))), \
+                        returnCode: \(String(describing: returnCode)), \
+                        stackTrace: \(String(describing: session.getFailStackTrace()))
+                        """)
+                }
+            }
+        }
+    }
+}