1

keyBoard/Class/AiTalk/VM/AudioCaptureManager.m

@@ -179,6 +179,11 @@ static const float kAudioSoftwareGain = 2.5f;
   }
 
   // 获取 Int16 数据
+  if (!outputBuffer.int16ChannelData) {
+    NSLog(@"[AudioCaptureManager] Int16 channel data is null");
+    return;
+  }
+
   int16_t *samples = (int16_t *)outputBuffer.int16ChannelData[0];
   NSUInteger sampleCount = outputBuffer.frameLength;
   NSUInteger byteCount = sampleCount * sizeof(int16_t);
@@ -189,13 +194,20 @@ static const float kAudioSoftwareGain = 2.5f;
   [self calculateAndReportRMS:samples sampleCount:sampleCount];
   [self logAudioStatsIfNeeded:samples sampleCount:sampleCount];
 
+  if (byteCount == 0) {
+    return;
+  }
+
+  NSData *pcmData = [NSData dataWithBytes:samples length:byteCount];
+
   // 将数据添加到 ring buffer 并输出完整帧
   dispatch_async(self.audioQueue, ^{
-    [self appendToRingBuffer:samples byteCount:byteCount];
+    [self appendToRingBuffer:(const uint8_t *)pcmData.bytes
+                   byteCount:pcmData.length];
   });
 }
 
-- (void)appendToRingBuffer:(int16_t *)samples byteCount:(NSUInteger)byteCount {
+- (void)appendToRingBuffer:(const uint8_t *)bytes byteCount:(NSUInteger)byteCount {
   // 将新数据追加到 ring buffer
   uint8_t *ringBufferBytes = (uint8_t *)self.ringBuffer.mutableBytes;
   NSUInteger ringBufferLength = self.ringBuffer.length;
@@ -208,7 +220,7 @@ static const float kAudioSoftwareGain = 2.5f;
     NSUInteger copySize = MIN(bytesToCopy, spaceAvailable);
 
     memcpy(ringBufferBytes + self.ringBufferWriteIndex,
-           (uint8_t *)samples + sourceOffset, copySize);
+           bytes + sourceOffset, copySize);
     self.ringBufferWriteIndex += copySize;
     sourceOffset += copySize;
     bytesToCopy -= copySize;