update library and headers

Pod/Library/include/Common/PLAudioCaptureConfiguration.h

@@ -17,6 +17,13 @@
  */
 @property (nonatomic, assign) NSUInteger channelsPerFrame;
 
+/**
+ @brief 回声消除开关，默认为 NO
+ 
+ @discussion 普通直播用到回声消除的场景不多，当用户开启返听功能，并且使用外放时，可打开这个开关，防止产生尖锐的啸叫声。
+ */
+@property (nonatomic, assign) BOOL acousticEchoCancellationEnable;
+
 /**
  @brief 创建一个默认配置的 PLAudioCaptureConfiguration 实例.
   

Pod/Library/include/Common/PLAudioStreamingConfiguration.h

@@ -33,6 +33,11 @@
  */
 @property (nonatomic, assign) UInt32    encodedNumberOfChannels;   // default as 1
 
+/**
+ @brief 编码模式，默认为 PLAACEncoderType_iOS_AAC
+ */
+@property (nonatomic, assign) PLAACEncoderType audioEncoderType;
+
 /**
  @brief 输入的音频流描述，默认为单路音频 @[kPLAudioChannelDefault]
  
@@ -66,4 +71,10 @@
                                   audioBitRate:(PLStreamingAudioBitRate)audioBitRate
                  inputAudioChannelDescriptions:(NSArray *)inputAudioChannelDescriptions;
 
+- (instancetype)initWithEncodedAudioSampleRate:(PLStreamingAudioSampleRate)sampleRate
+                       encodedNumberOfChannels:(UInt32)numberOfChannels
+                              audioEncoderType:(PLAACEncoderType)audioEncoderType
+                                  audioBitRate:(PLStreamingAudioBitRate)audioBitRate
+                 inputAudioChannelDescriptions:(NSArray *)inputAudioChannelDescriptions;
+
 @end

Pod/Library/include/Common/PLTypeDefines.h

@@ -343,6 +343,25 @@ typedef NS_ENUM(NSUInteger, PLH264EncoderType) {
     PLH264EncoderType_VideoToolbox     // iOS 8 及以上系统版本可用 VideoToolbox 编码器，编码效率更优
 };
 
+/**
+ @brief 音频编码模式
+ */
+typedef NS_ENUM(NSUInteger, PLAACEncoderType) {
+    /**
+     @brief iOS AAC（硬编）
+     */
+    PLAACEncoderType_iOS_AAC,
+    /**
+     @brief fdk-aac AAC
+     */
+    PLAACEncoderType_fdk_AAC_LC,
+    /**
+     @brief fdk-aac HE-AAC
+     */
+    PLAACEncoderType_fdk_AAC__HE_BSR
+
+};
+
 #pragma mark - Audio SampleRate
 
 /*!
@@ -447,6 +466,12 @@ typedef NS_OPTIONS(NSUInteger, PLRTCConferenceType) {
     PLRTCConferenceTypeAudioAndVideo
 };
 
+///连麦视频格式
+typedef NS_OPTIONS(NSUInteger, PLRTCVideoFormat) {
+    PLRTCVideoFormatNV12 = 0,
+    PLRTCVideoFormatI420 = 1
+};
+
 /// 断线后是否自动重新加入房间，默认为 YES
 extern const NSString *kPLRTCAutoRejoinKey;
 

Pod/Library/include/PLMediaStreamingKit/PLMediaStreamingSession.h

@@ -63,6 +63,13 @@
 /// @abstract userID 离开房间
 - (void)mediaStreamingSession:(PLMediaStreamingSession *)session didLeaveConferenceOfUserID:(NSString *)userID;
 
+/// @abstract 连麦时，SDK 内部不渲染连麦者（以 userID 标识）的视频，而由该接口返回相应的视频数据
+/// @ warning pixelBuffer必须在用完之后手动释放，否则会引起内存泄漏
+- (void)mediaStreamingSession:(PLMediaStreamingSession *)session  didGetPixelBuffer:(CVPixelBufferRef)pixelBuffer ofUserID:(NSString *)userID;
+
+/// @abstract 连麦时，对方（以 userID 标识）取消视频的数据回调
+- (void)mediaStreamingSession:(PLMediaStreamingSession *)session didLostPixelBufferOfUserID:(NSString *)userID;
+
 @end
 
 #pragma mark - basic

Pod/Library/include/PLRTCStreamingKit/PLRTCStreamingSession.h

@@ -52,6 +52,13 @@
 /// @abstract userID 离开房间
 - (void)RTCStreamingSession:(PLRTCStreamingSession *)session didLeaveConferenceOfUserID:(NSString *)userID;
 
+/// @abstract 连麦时，SDK 内部不渲染连麦者（以 userID 标识）的视频，而由该接口返回相应的视频数据
+/// @ warning pixelBuffer必须在用完之后手动释放，否则会引起内存泄漏
+- (void)RTCStreamingSession:(PLRTCStreamingSession *)session  didGetPixelBuffer:(CVPixelBufferRef)pixelBuffer ofUserID:(NSString *)userID;
+
+/// @abstract 连麦时，对方（以 userID 标识）取消视频的数据回调
+- (void)RTCStreamingSession:(PLRTCStreamingSession *)session didLostPixelBufferOfUserID:(NSString *)userID;
+
 @end
 
 @interface PLRTCStreamingSession : NSObject
@@ -418,6 +425,13 @@
 */
 @property (nonatomic, strong) NSDictionary *rtcOption;
 
+/**
+ @abstract 外部传入用于连麦的视频格式
+ 
+ @warning 要调用此接口请确保工程中已经引入了 PLMediaStreamingKit(RTC).a，如果没有引入该静态库，调用该接口会导致程序抛 exception
+ */
+@property (nonatomic, assign) PLRTCVideoFormat rtcVideoFormat;
+
 /*!
  * 开始连麦
  *