添加设置对讲音频参数接口

Change-Id: I8015167164a7133e9ed01e9e9870bf328dc300e3

Author: tonychanchen

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

@@ -207,7 +207,13 @@ - (void)getDeviceStatusWithType:(NSString *)singleType qualityType:(NSString *)q
                     NSString *channelNum = self.selectedModel.Channel?:@"0";
                     channel = [NSString stringWithFormat:@"channel=%d",channelNum.intValue];
                 }
-                [[TIoTCoreXP2PBridge sharedInstance] sendVoiceToServer:self.deviceName?:@"" channel:channel];
+
+                AWAudioConfig *config = [[AWAudioConfig alloc] init];
+                config.bitrate = 100000;
+                config.channelCount = 1;
+                config.sampleSize = 16;
+                config.sampleRate = 44100;
+                [[TIoTCoreXP2PBridge sharedInstance] sendVoiceToServer:self.deviceName?:@"" channel:channel audioConfig:config];
             }
 
         }else {

Source/SDK/LinkVideo/TIoTCoreXP2PBridge.h

@@ -5,6 +5,7 @@
 //
 
 #import <Foundation/Foundation.h>
+#import "AWSystemAVCapture.h"
 #include "AppWrapper.h"
 
 NS_ASSUME_NONNULL_BEGIN
@@ -72,7 +73,10 @@ NS_ASSUME_NONNULL_BEGIN
 /*
  * 语音对讲开始结束接口
  */
+//对讲音频默认采样率
 - (void)sendVoiceToServer:(NSString *)dev_name channel:(NSString *)channel_number;
+//可通过此接口 audio_onfig 参数既可设置对讲音频码率（bitrate）、采样率（sampleRate）、channelCount、sampleSize
+- (void)sendVoiceToServer:(NSString *)dev_name channel:(NSString *)channel_number audioConfig:(AWAudioConfig *)audio_onfig;
 - (XP2PErrCode)stopVoiceToServer;
 
 /*

Source/SDK/LinkVideo/TIoTCoreXP2PBridge.mm

@@ -6,7 +6,6 @@
 
 #import "TIoTCoreXP2PBridge.h"
 #include <string.h>
-#import "AWSystemAVCapture.h"
 #import <CocoaLumberjack/CocoaLumberjack.h>
 
 #ifdef DEBUG
@@ -169,6 +168,12 @@ - (XP2PErrCode)stopAvRecvService:(NSString *)dev_name {
 }
 
 - (void)sendVoiceToServer:(NSString *)dev_name channel:(NSString *)channel_number {
+    AWAudioConfig *config = [[AWAudioConfig alloc] init];
+    [self sendVoiceToServer:dev_name channel:channel_number audioConfig:config];
+}
+
+- (void)sendVoiceToServer:(NSString *)dev_name channel:(NSString *)channel_number audioConfig:(AWAudioConfig *)audio_onfig{
+    //设置码率
     [[AVAudioSession sharedInstance] setCategory:AVAudioSessionCategoryPlayAndRecord withOptions:AVAudioSessionCategoryOptionDefaultToSpeaker | AVAudioSessionCategoryOptionMixWithOthers | AVAudioSessionCategoryOptionAllowBluetooth error:nil];
     [[AVAudioSession sharedInstance] setActive:YES error:nil];
 
@@ -178,8 +183,7 @@ - (void)sendVoiceToServer:(NSString *)dev_name channel:(NSString *)channel_numbe
     const char *channel = [channel_number UTF8String];
     _serverHandle = runSendService(dev_name.UTF8String, channel, false); //发送数据前需要告知http proxy
 
-    AWAudioConfig *config = [[AWAudioConfig alloc] init];
-    systemAvCapture = [[AWSystemAVCapture alloc] initWithAudioConfig:config];
+    systemAvCapture = [[AWSystemAVCapture alloc] initWithAudioConfig:audio_onfig];
     systemAvCapture.delegate = self;
     systemAvCapture.audioEncoderType = AWAudioEncoderTypeSWFAAC;
     [systemAvCapture startCapture];