blob: 7832a82d4f3ba4d27faba33ebbe36eabec6c95e5 [file] [log] [blame]
/*
* Copyright 2016 The WebRTC Project Authors. All rights reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#import <AVFoundation/AVFoundation.h>
#import <Foundation/Foundation.h>
NS_ASSUME_NONNULL_BEGIN
extern const int kRTCAudioSessionPreferredNumberOfChannels;
extern const double kRTCAudioSessionHighPerformanceSampleRate;
extern const double kRTCAudioSessionLowComplexitySampleRate;
extern const double kRTCAudioSessionHighPerformanceIOBufferDuration;
extern const double kRTCAudioSessionLowComplexityIOBufferDuration;
// Struct to hold configuration values.
@interface RTCAudioSessionConfiguration : NSObject
@property(nonatomic, strong) NSString *category;
@property(nonatomic, assign) AVAudioSessionCategoryOptions categoryOptions;
@property(nonatomic, strong) NSString *mode;
@property(nonatomic, assign) double sampleRate;
@property(nonatomic, assign) NSTimeInterval ioBufferDuration;
@property(nonatomic, assign) NSInteger inputNumberOfChannels;
@property(nonatomic, assign) NSInteger outputNumberOfChannels;
/** Initializes configuration to defaults. */
- (instancetype)init NS_DESIGNATED_INITIALIZER;
/** Returns the current configuration of the audio session. */
+ (instancetype)currentConfiguration;
/** Returns the configuration that WebRTC needs. */
+ (instancetype)webRTCConfiguration;
/** Provide a way to override the default configuration. */
+ (void)setWebRTCConfiguration:(RTCAudioSessionConfiguration *)configuration;
@end
NS_ASSUME_NONNULL_END