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‎AudioUnitPlayerDemo/AudioUnitPlayerDemo.xcodeproj/project.pbxproj‎

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‎AudioUnitPlayerDemo/AudioUnitPlayerDemo/Base.lproj/Main.storyboard‎

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<?xml version="1.0" encoding="UTF-8"?>
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<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="13122.16" systemVersion="17A277" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
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<document type="com.apple.InterfaceBuilder3.CocoaTouch.Storyboard.XIB" version="3.0" toolsVersion="14113" targetRuntime="iOS.CocoaTouch" propertyAccessControl="none" useAutolayout="YES" useTraitCollections="YES" useSafeAreas="YES" colorMatched="YES" initialViewController="BYZ-38-t0r">
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<device id="retina4_7" orientation="portrait">
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<adaptation id="fullscreen"/>
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</device>
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<dependencies>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="13104.12"/>
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<deployment identifier="iOS"/>
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<plugIn identifier="com.apple.InterfaceBuilder.IBCocoaTouchPlugin" version="14088"/>
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<capability name="Safe area layout guides" minToolsVersion="9.0"/>
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<capability name="documents saved in the Xcode 8 format" minToolsVersion="8.0"/>
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</dependencies>
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<scenes>
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<!--View Controller-->
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<scene sceneID="tne-QT-ifu">
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<objects>
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<viewController id="BYZ-38-t0r" customClass="ViewController" customModuleProvider="" sceneMemberID="viewController">
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<viewController id="BYZ-38-t0r" customClass="ViewController" sceneMemberID="viewController">
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<view key="view" contentMode="scaleToFill" id="8bC-Xf-vdC">
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<rect key="frame" x="0.0" y="0.0" width="375" height="667"/>
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<autoresizingMask key="autoresizingMask" widthSizable="YES" heightSizable="YES"/>
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<subviews>
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<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="Mob-zZ-SU0">
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<rect key="frame" x="60" y="227" width="37" height="36"/>
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<color key="backgroundColor" red="0.93725490199999995" green="0.4941176471" blue="0.4941176471" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
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<fontDescription key="fontDescription" type="system" pointSize="20"/>
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<state key="normal" title="play"/>
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<connections>
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<action selector="playBtnClick:" destination="BYZ-38-t0r" eventType="touchUpInside" id="nnB-jC-1Dv"/>
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</connections>
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</button>
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<button opaque="NO" contentMode="scaleToFill" contentHorizontalAlignment="center" contentVerticalAlignment="center" buttonType="roundedRect" lineBreakMode="middleTruncation" translatesAutoresizingMaskIntoConstraints="NO" id="PF7-u8-cTJ">
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<rect key="frame" x="166" y="227" width="46" height="30"/>
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<color key="backgroundColor" white="0.66666666669999997" alpha="1" colorSpace="custom" customColorSpace="genericGamma22GrayColorSpace"/>
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<constraints>
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<constraint firstAttribute="height" constant="30" id="8X3-Ab-eZB"/>
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<constraint firstAttribute="width" constant="46" id="kZR-6P-KfL"/>
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</constraints>
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<fontDescription key="fontDescription" type="system" pointSize="20"/>
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<state key="normal" title="stop"/>
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<connections>
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<action selector="stopBtnClick:" destination="BYZ-38-t0r" eventType="touchUpInside" id="h8X-lz-kHf"/>
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</connections>
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</button>
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</subviews>
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<color key="backgroundColor" red="1" green="1" blue="1" alpha="1" colorSpace="custom" customColorSpace="sRGB"/>
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<constraints>
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<constraint firstItem="PF7-u8-cTJ" firstAttribute="leading" secondItem="Mob-zZ-SU0" secondAttribute="trailing" constant="69" id="0l4-hB-uPo"/>
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<constraint firstItem="Mob-zZ-SU0" firstAttribute="leading" secondItem="6Tk-OE-BBY" secondAttribute="leading" constant="60" id="oRG-Lg-z7x"/>
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<constraint firstItem="PF7-u8-cTJ" firstAttribute="top" secondItem="6Tk-OE-BBY" secondAttribute="top" constant="207" id="sr7-G6-a2o"/>
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<constraint firstItem="Mob-zZ-SU0" firstAttribute="top" secondItem="6Tk-OE-BBY" secondAttribute="top" constant="207" id="vgk-o8-4KJ"/>
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</constraints>
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<viewLayoutGuide key="safeArea" id="6Tk-OE-BBY"/>
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</view>
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</viewController>

‎AudioUnitPlayerDemo/AudioUnitPlayerDemo/MYAudioUnit/AVAudioSession+ST_RouteUtils.h‎

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//
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// AVAudioSession+ST_RouteUtils.h
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// 01AudioPlayerMe
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//
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// Created by codew on 2018/7/28.
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// Copyright © 2018年 codew. All rights reserved.
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//
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#import <AVFoundation/AVFoundation.h>
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@interface AVAudioSession (ST_RouteUtils)
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- (BOOL)usingBlueTooth;
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- (BOOL)usingWiredMicrophone;
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- (BOOL)shouldShowEarphoneAlert;
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@end

‎AudioUnitPlayerDemo/AudioUnitPlayerDemo/MYAudioUnit/AVAudioSession+ST_RouteUtils.m‎

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//
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// AVAudioSession+ST_RouteUtils.m
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// 01AudioPlayerMe
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//
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// Created by codew on 2018/7/28.
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// Copyright © 2018年 codew. All rights reserved.
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//
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#import "AVAudioSession+ST_RouteUtils.h"
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@implementation AVAudioSession (ST_RouteUtils)
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- (BOOL)usingBlueTooth {
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NSArray *inputs = self.currentRoute.inputs;
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NSArray *blueToothInputRoutes = @[AVAudioSessionPortBluetoothHFP];
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for (AVAudioSessionPortDescription *description in inputs) {
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if ([blueToothInputRoutes containsObject:description.portType]) {
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return YES;
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}
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}
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NSArray *outputs = self.currentRoute.outputs;
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NSArray *blueToothOutputRoutes = @[AVAudioSessionPortBluetoothHFP, AVAudioSessionPortBluetoothA2DP, AVAudioSessionPortBluetoothLE];
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for (AVAudioSessionPortDescription *description in outputs) {
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if ([blueToothOutputRoutes containsObject:description.portType]) {
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return YES;
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}
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}
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return NO;
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}
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- (BOOL)usingWiredMicrophone {
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NSArray *inputs = self.currentRoute.inputs;
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NSArray *headSetInputRoutes = @[AVAudioSessionPortHeadsetMic];
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for (AVAudioSessionPortDescription *description in inputs) {
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if ([headSetInputRoutes containsObject:description.portType]) {
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return YES;
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}
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}
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NSArray *outputs = self.currentRoute.outputs;
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NSArray *headSetOutputRoutes = @[AVAudioSessionPortHeadphones, AVAudioSessionPortUSBAudio];
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for (AVAudioSessionPortDescription *description in outputs) {
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if ([headSetOutputRoutes containsObject:description.portType]) {
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return YES;
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}
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}
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return NO;
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}
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- (BOOL)shouldShowEarphoneAlert
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{
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// 用户如果没有带耳机，则应该提出提示，目前采用保守策略，即尽量减少alert弹出，所以，我们认为只要不是用手机内置的听筒或者喇叭作为声音外放的，都认为用户带了耳机
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NSArray *outputs = self.currentRoute.outputs;
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NSArray *headSetOutputRoutes = @[AVAudioSessionPortBuiltInReceiver, AVAudioSessionPortBuiltInSpeaker];
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for (AVAudioSessionPortDescription *description in outputs) {
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if ([headSetOutputRoutes containsObject:description.portType]) {
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return YES;
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}
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}
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return NO;
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}
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@end

‎AudioUnitPlayerDemo/AudioUnitPlayerDemo/MYAudioUnit/CommonUtil.h‎

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//
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// CommonUtil.h
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// video_player
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//
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// Created by apple on 16/8/25.
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// Copyright © 2016年 xiaokai.zhan. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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@interface CommonUtil : NSObject
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+(NSString *)bundlePath:(NSString *)fileName;
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+(NSString *)documentsPath:(NSString *)fileName;
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@end

‎AudioUnitPlayerDemo/AudioUnitPlayerDemo/MYAudioUnit/CommonUtil.m‎

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//
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// CommonUtil.m
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// video_player
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//
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// Created by apple on 16/8/25.
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// Copyright © 2016年 xiaokai.zhan. All rights reserved.
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//
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#import "CommonUtil.h"
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@implementation CommonUtil
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+(NSString *)bundlePath:(NSString *)fileName {
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return [[[NSBundle mainBundle] bundlePath] stringByAppendingPathComponent:fileName];
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}
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+(NSString *)documentsPath:(NSString *)fileName {
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NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
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NSString *documentsDirectory = [paths objectAtIndex:0];
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return [documentsDirectory stringByAppendingPathComponent:fileName];
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}
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@end

‎AudioUnitPlayerDemo/AudioUnitPlayerDemo/MYAudioUnit/ST_AudioOutput.h‎

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//
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// ST_AudioOutput.h
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// 01AudioPlayerMe
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//
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// Created by codew on 2018/7/26.
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// Copyright © 2018年 codew. All rights reserved.
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//
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#import <Foundation/Foundation.h>
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// 数据填充, 喂数据
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@protocol FillDataOutputDelegate <NSObject>
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@optional
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- (NSInteger) fillAudioData:(SInt16*) sampleBuffer numFrames:(NSInteger)frameNum numChannels:(NSInteger)channels;
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@end
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@interface ST_AudioOutput : NSObject
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@property (nonatomic, assign) Float64 sampleRate;
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@property (nonatomic, assign) Float64 channels;
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- (id)initWithChannels:(NSInteger)channels
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sampleRate:(NSInteger)sampleRate
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bytesPerSample:(NSInteger)bytePerSample
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fileDataDelegate:(id<FillDataOutputDelegate>)fileDataDelegate;
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- (BOOL)play;
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- (void)stop;
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@end

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