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/*
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* Copyright 2018 The WebRTC Project Authors. All rights reserved.
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*
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* Use of this source code is governed by a BSD-style license
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* that can be found in the LICENSE file in the root of the source
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* tree. An additional intellectual property rights grant can be found
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* in the file PATENTS. All contributing project authors may
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* be found in the AUTHORS file in the root of the source tree.
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*/
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#import "RTCNativeAudioSessionDelegateAdapter.h"
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#include "sdk/objc/native/src/audio/audio_session_observer.h"
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#import "base/RTCLogging.h"
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@implementation RTCNativeAudioSessionDelegateAdapter {
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webrtc::AudioSessionObserver *_observer;
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}
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- (instancetype)initWithObserver:(webrtc::AudioSessionObserver *)observer {
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RTC_DCHECK(observer);
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if (self = [super init]) {
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_observer = observer;
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}
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return self;
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}
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#pragma mark - RTC_OBJC_TYPE(RTCAudioSessionDelegate)
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- (void)audioSessionDidBeginInterruption:(RTC_OBJC_TYPE(RTCAudioSession) *)session {
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_observer->OnInterruptionBegin();
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}
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- (void)audioSessionDidEndInterruption:(RTC_OBJC_TYPE(RTCAudioSession) *)session
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shouldResumeSession:(BOOL)shouldResumeSession {
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_observer->OnInterruptionEnd();
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}
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- (void)audioSessionDidChangeRoute:(RTC_OBJC_TYPE(RTCAudioSession) *)session
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reason:(AVAudioSessionRouteChangeReason)reason
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previousRoute:(AVAudioSessionRouteDescription *)previousRoute {
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switch (reason) {
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case AVAudioSessionRouteChangeReasonUnknown:
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case AVAudioSessionRouteChangeReasonNewDeviceAvailable:
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case AVAudioSessionRouteChangeReasonOldDeviceUnavailable:
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case AVAudioSessionRouteChangeReasonCategoryChange:
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// It turns out that we see a category change (at least in iOS 9.2)
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// when making a switch from a BT device to e.g. Speaker using the
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// iOS Control Center and that we therefore must check if the sample
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// rate has changed. And if so is the case, restart the audio unit.
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case AVAudioSessionRouteChangeReasonOverride:
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case AVAudioSessionRouteChangeReasonWakeFromSleep:
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case AVAudioSessionRouteChangeReasonNoSuitableRouteForCategory:
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_observer->OnValidRouteChange();
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break;
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case AVAudioSessionRouteChangeReasonRouteConfigurationChange:
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// The set of input and output ports has not changed, but their
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// configuration has, e.g., a port’s selected data source has
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// changed. Ignore this type of route change since we are focusing
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// on detecting headset changes.
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RTCLog(@"Ignoring RouteConfigurationChange");
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break;
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}
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}
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- (void)audioSessionMediaServerTerminated:(RTC_OBJC_TYPE(RTCAudioSession) *)session {
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}
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- (void)audioSessionMediaServerReset:(RTC_OBJC_TYPE(RTCAudioSession) *)session {
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}
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- (void)audioSession:(RTC_OBJC_TYPE(RTCAudioSession) *)session
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didChangeCanPlayOrRecord:(BOOL)canPlayOrRecord {
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_observer->OnCanPlayOrRecordChange(canPlayOrRecord);
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}
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- (void)audioSessionDidStartPlayOrRecord:(RTC_OBJC_TYPE(RTCAudioSession) *)session {
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}
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- (void)audioSessionDidStopPlayOrRecord:(RTC_OBJC_TYPE(RTCAudioSession) *)session {
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}
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- (void)audioSession:(RTC_OBJC_TYPE(RTCAudioSession) *)audioSession
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didChangeOutputVolume:(float)outputVolume {
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_observer->OnChangedOutputVolume();
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}
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@end
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