录制16k杂音问题

Change-Id: Ida178ce495d8a97040d54ec8367a5a22f4b2373a

Author: tonychanchen

Source/LinkSDKDemo/Video/P2P/Controller/TIoTDemoVideoPushVC.m

@@ -273,7 +273,7 @@ - (void)getDeviceStatusWithType:(NSString *)singleType qualityType:(NSString *)q
 
                 static int tt_pitch = 0;
                 TIoTCoreAudioConfig *audio_config = [TIoTCoreAudioConfig new];
-                audio_config.refreshSession = NO;
+                audio_config.refreshSession = YES;
                 audio_config.sampleRate = TIoTAVCaptionFLVAudio_8;
                 audio_config.channels = 1;
                 audio_config.isEchoCancel = YES;

Source/SDK/LinkVideo/FLV/TIoTAVCaptionFLV.mm

@@ -57,7 +57,7 @@ -(instancetype) initWithAudioConfig:(TIoTAVCaptionFLVAudioType)audioSampleRate c
         _pitch = 0;
         _devicePosition = AVCaptureDevicePositionBack;
 
-        _audioEncodeQueue = dispatch_queue_create("com.audio.aacencode", DISPATCH_QUEUE_SERIAL);
+//        _audioEncodeQueue = dispatch_queue_create("com.audio.aacencode", DISPATCH_QUEUE_SERIAL);
         [self onInit];
     }
     return self;
@@ -405,7 +405,7 @@ static void record_callback(uint8_t *buffer, int size, void *u)
      */
 
     //pcm=>aac
-    dispatch_async(vc.audioEncodeQueue, ^{
+//    dispatch_async(vc.audioEncodeQueue, ^{
         static int tmpChannelDataLen = 2048;//vc.pcmRecord.pcmStreamDescription.mChannelsPerFrame * 2048;
         UInt32 aaclen = [vc.pcmRecord getData:&pcm_circularBuffer :trae_aac_buffer :tmpChannelDataLen];
         if (aaclen < tmpChannelDataLen) {
@@ -425,7 +425,7 @@ static void record_callback(uint8_t *buffer, int size, void *u)
         NSData *data = [NSData dataWithBytes:trae_aac_buffer length:tmpChannelDataLen];
 //        [_fileHandle writeData:data];
         [vc.aacEncoder encodePCMData:data];
-    });
+//    });
 }