添加openCamera提前预览接口

Change-Id: I67771017a153628b8b9b99aa8191cf948e66ce95

Author: tonychanchen

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

@@ -130,13 +130,16 @@ - (void)viewDidLoad {
 
     NSString *productId = [TIoTCoreAppEnvironment shareEnvironment].cloudProductId?:@"";
     NSString *deviceName= self.deviceName?:@"";
-    [self callDevice:productId devicename:deviceName];
+//    dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(5 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
+        [self callDevice:productId devicename:deviceName];
+//    });
 
     UIBarButtonItem *right = [[UIBarButtonItem alloc] initWithTitle:@"静音" style:UIBarButtonItemStylePlain target:self action:@selector(showHudView:)];
     self.navigationItem.rightBarButtonItem = right;
 
     //设置代理，接受设备消息
     [TIoTCoreXP2PBridge sharedInstance].delegate = self;
+//    [[TIoTCoreXP2PBridge sharedInstance] openCamera:AVCaptureDevicePositionFront view:self.imageView];
 }
 
 - (void)requestDiffDeviceDataWithXp2pInfo:(TRTCParams *)xp2pInfo {

Source/SDK/LinkVideo/TIoTCoreXP2PBridge.h

@@ -160,6 +160,10 @@ extern NSNotificationName const TIoTCoreXP2PBridgeNotificationStreamEnd;
  */
 + (int)getStreamLinkMode:(NSString *)dev_name;
 
+/*
+ * 打开本地预览
+ */
+- (void)openCamera:(AVCaptureDevicePosition)videoPosition view:(UIView *)previewView;
 @end
 
 NS_ASSUME_NONNULL_END

Source/SDK/LinkVideo/TIoTCoreXP2PBridge.mm

@@ -237,6 +237,8 @@ - (XP2PErrCode)startAppWith:(NSString *)pro_id dev_name:(NSString *)dev_name {
 
     [TRTCCloud sharedInstance].delegate = self;
     [[TRTCCloud sharedInstance] enterRoom:self.params appScene:TRTCAppSceneVideoCall];
+    
+    [[TRTCCloud sharedInstance] muteLocalVideo:TRTCVideoStreamTypeBig mute:YES];
     return XP2P_ERR_NONE;
 
 
@@ -371,7 +373,10 @@ - (void)sendVoiceToServer:(NSString *)dev_name channel:(NSString *)channel_numbe
 //    fileHandle = [NSFileHandle fileHandleForWritingAtPath:audioFile];
     self.audioConfig = audio_config;
     self.videoConfig = video_config;
+    [[TRTCCloud sharedInstance] muteLocalVideo:TRTCVideoStreamTypeBig mute:NO];
+    [[TRTCCloud sharedInstance] stopLocalPreview];
     [[TRTCCloud sharedInstance] startLocalPreview:(video_config.videoPosition == AVCaptureDevicePositionFront)?YES:NO view:video_config.localView];
+    
     [[TRTCCloud sharedInstance] startLocalAudio:TRTCAudioQualitySpeech];
     return;
 
@@ -529,8 +534,9 @@ + (int)getStreamLinkMode:(NSString *)dev_name {
 }
 
 
-
-
+- (void)openCamera:(AVCaptureDevicePosition)videoPosition view:(UIView *)previewView {
+    [[TRTCCloud sharedInstance] startLocalPreview:(videoPosition == AVCaptureDevicePositionFront)?YES:NO view:previewView];
+}
 
 #pragma mark -TRTCCloudDelegate
 - (void)onEnterRoom:(NSInteger)result {