use safeTimer for micHandler

VoidLink/Input/MicHandler.swift

@@ -23,7 +23,7 @@ public class MicHandler: NSObject {
     
     private var pcm16Buffer: [Int16] = []
     private let bufferQueue = DispatchQueue(label: "pcm.buffer.queue")
-    private var timer: DispatchSourceTimer?
+    private var timer: SafeTimer?
 
     /*
     private var recordedBuffers: [AVAudioPCMBuffer] = []
@@ -157,6 +157,7 @@ public class MicHandler: NSObject {
     @objc public func startTapping() {
         // recordedBuffers.removeAll()
         isRecording = true
+        self.timer?.resume()
         /*
         DispatchQueue.main.asyncAfter(deadline: .now() + seconds) { [weak self] in
             guard let self = self else { return }
@@ -169,6 +170,7 @@ public class MicHandler: NSObject {
 
     @objc public func stopTapping(stopEngine:Bool) {
         isRecording = false
+        self.timer?.suspend()
         // engine.inputNode.removeTap(onBus: 0)
         if(stopEngine){
             playerNode.stop()
@@ -243,13 +245,9 @@ public class MicHandler: NSObject {
             engine.connect(engine.inputNode, to: audioSink as! AVAudioNode, format: micInputFormat)
             
             // 开定时器，每 20ms 触发一次
-            self.timer = DispatchSource.makeTimerSource(queue: .global())
-            self.timer?.schedule(deadline: .now()+0.1, repeating: 0.02)
-            self.timer?.setEventHandler { [weak self] in
-                self?.sendOpusFrame()
+            self.timer = SafeTimer(interval:0.02, delay: 0.05) {
+                self.sendOpusFrame()
             }
-            self.timer?.resume()
-
         }
         else{
             engine.attach(playerNode)

VoidLink/Input/SafeTimer.swift

@@ -11,12 +11,14 @@ class SafeTimer {
     private var timer: DispatchSourceTimer
     private(set) var isRunning = false
     private var interval: TimeInterval = 0
+    private var delay: TimeInterval = 0
     
-    init(interval: TimeInterval = 1.0, queue: DispatchQueue = .global(), handler: @escaping () -> Void) {
+    init(interval: TimeInterval = 1.0, queue: DispatchQueue = .global(), delay: TimeInterval = 0, handler: @escaping () -> Void) {
         timer = DispatchSource.makeTimerSource(queue: queue)
-        timer.schedule(deadline: .now(), repeating: interval)
+        timer.schedule(deadline: .now() + delay, repeating: interval)
         timer.setEventHandler(handler: handler)
         self.interval = interval
+        self.delay = delay
         // 注意：这里不调用 resume，保持 suspended，等 start() 时才运行
     }
     
@@ -37,7 +39,7 @@ class SafeTimer {
             timer.suspend()
             isRunning = false
         }
-        timer.schedule(deadline: .now(), repeating: self.interval) // 重置时间
+        timer.schedule(deadline: .now() + self.delay, repeating: self.interval) // 重置时间
         timer.resume()
         isRunning = true
     }

VoidLink/ViewControllers/StreamFrameViewController.m

@@ -1275,18 +1275,17 @@
 - (void) stageComplete:(const char*)stageName {
     _micStreamInitialized = false;
     if(strcmp(stageName, "mic stream establishment")==0){
+        
         if(_streamConfig.redirectMic){
-            dispatch_after((int64_t)(5 * NSEC_PER_SEC), dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_BACKGROUND, 0), ^{
-                dispatch_async(dispatch_get_main_queue(), ^{
-                    self->_micStreamInitialized = true;
-                    self->micHandler = [MicHandler new];
-                    [self->micHandler startTapping];
-                });
+            dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+                self->_micStreamInitialized = true;
+                self->micHandler = [MicHandler new];
+                [self->micHandler startTapping];
             });
         }
     }
+    
     if(strcmp(stageName, "mic stream unsupported or unintialized")==0){
-        NSLog(@"blablablala");
         _micStreamInitialized = false;
     }
 }