| /* |
| * Copyright (C) 2013-2014 Apple Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #import "config.h" |
| #import "AudioSession.h" |
| |
| #if USE(AUDIO_SESSION) && PLATFORM(IOS) |
| |
| #import "Logging.h" |
| #import <AVFoundation/AVAudioSession.h> |
| #import <objc/runtime.h> |
| #import <wtf/RetainPtr.h> |
| #import <wtf/SoftLinking.h> |
| |
| typedef AVAudioSession AVAudioSessionType; |
| |
| SOFT_LINK_FRAMEWORK(AVFoundation) |
| SOFT_LINK_CLASS(AVFoundation, AVAudioSession) |
| |
| SOFT_LINK_POINTER(AVFoundation, AVAudioSessionCategoryAmbient, NSString *) |
| SOFT_LINK_POINTER(AVFoundation, AVAudioSessionCategorySoloAmbient, NSString *) |
| SOFT_LINK_POINTER(AVFoundation, AVAudioSessionCategoryPlayback, NSString *) |
| SOFT_LINK_POINTER(AVFoundation, AVAudioSessionCategoryRecord, NSString *) |
| SOFT_LINK_POINTER(AVFoundation, AVAudioSessionCategoryPlayAndRecord, NSString *) |
| SOFT_LINK_POINTER(AVFoundation, AVAudioSessionCategoryAudioProcessing, NSString *) |
| SOFT_LINK_POINTER(AVFoundation, AVAudioSessionModeDefault, NSString *) |
| SOFT_LINK_POINTER(AVFoundation, AVAudioSessionModeVideoChat, NSString *) |
| |
| #define AVAudioSession getAVAudioSessionClass() |
| #define AVAudioSessionCategoryAmbient getAVAudioSessionCategoryAmbient() |
| #define AVAudioSessionCategorySoloAmbient getAVAudioSessionCategorySoloAmbient() |
| #define AVAudioSessionCategoryPlayback getAVAudioSessionCategoryPlayback() |
| #define AVAudioSessionCategoryRecord getAVAudioSessionCategoryRecord() |
| #define AVAudioSessionCategoryPlayAndRecord getAVAudioSessionCategoryPlayAndRecord() |
| #define AVAudioSessionCategoryAudioProcessing getAVAudioSessionCategoryAudioProcessing() |
| #define AVAudioSessionModeDefault getAVAudioSessionModeDefault() |
| #define AVAudioSessionModeVideoChat getAVAudioSessionModeVideoChat() |
| |
| namespace WebCore { |
| |
| #if !LOG_DISABLED |
| static const char* categoryName(AudioSession::CategoryType category) |
| { |
| #define CASE(category) case AudioSession::category: return #category |
| switch (category) { |
| CASE(None); |
| CASE(AmbientSound); |
| CASE(SoloAmbientSound); |
| CASE(MediaPlayback); |
| CASE(RecordAudio); |
| CASE(PlayAndRecord); |
| CASE(AudioProcessing); |
| } |
| |
| ASSERT_NOT_REACHED(); |
| return ""; |
| } |
| #endif |
| |
| class AudioSessionPrivate { |
| public: |
| AudioSessionPrivate(AudioSession*); |
| AudioSession::CategoryType m_categoryOverride; |
| }; |
| |
| AudioSessionPrivate::AudioSessionPrivate(AudioSession*) |
| : m_categoryOverride(AudioSession::None) |
| { |
| } |
| |
| AudioSession::AudioSession() |
| : m_private(std::make_unique<AudioSessionPrivate>(this)) |
| { |
| } |
| |
| AudioSession::~AudioSession() |
| { |
| } |
| |
| void AudioSession::setCategory(CategoryType newCategory) |
| { |
| LOG(Media, "AudioSession::setCategory() - category = %s", categoryName(newCategory)); |
| |
| if (categoryOverride() && categoryOverride() != newCategory) { |
| LOG(Media, "AudioSession::setCategory() - override set, NOT changing"); |
| return; |
| } |
| |
| NSString *categoryString; |
| NSString *categoryMode = AVAudioSessionModeDefault; |
| AVAudioSessionCategoryOptions options = 0; |
| AVAudioSessionRouteSharingPolicy policy = AVAudioSessionRouteSharingPolicyDefault; |
| |
| switch (newCategory) { |
| case AmbientSound: |
| categoryString = AVAudioSessionCategoryAmbient; |
| break; |
| case SoloAmbientSound: |
| categoryString = AVAudioSessionCategorySoloAmbient; |
| break; |
| case MediaPlayback: |
| categoryString = AVAudioSessionCategoryPlayback; |
| policy = AVAudioSessionRouteSharingPolicyLongForm; |
| break; |
| case RecordAudio: |
| categoryString = AVAudioSessionCategoryRecord; |
| break; |
| case PlayAndRecord: |
| categoryString = AVAudioSessionCategoryPlayAndRecord; |
| categoryMode = AVAudioSessionModeVideoChat; |
| options |= AVAudioSessionCategoryOptionAllowBluetooth | AVAudioSessionCategoryOptionAllowBluetoothA2DP | AVAudioSessionCategoryOptionDefaultToSpeaker | AVAudioSessionCategoryOptionAllowAirPlay; |
| break; |
| case AudioProcessing: |
| categoryString = AVAudioSessionCategoryAudioProcessing; |
| break; |
| case None: |
| default: |
| categoryString = nil; |
| break; |
| } |
| |
| NSError *error = nil; |
| [[AVAudioSession sharedInstance] setCategory:categoryString mode:categoryMode routeSharingPolicy:policy options:options error:&error]; |
| #if !PLATFORM(IOS_SIMULATOR) && !ENABLE(MINIMAL_SIMULATOR) |
| ASSERT(!error); |
| #endif |
| } |
| |
| AudioSession::CategoryType AudioSession::category() const |
| { |
| NSString *categoryString = [[AVAudioSession sharedInstance] category]; |
| if ([categoryString isEqual:AVAudioSessionCategoryAmbient]) |
| return AmbientSound; |
| if ([categoryString isEqual:AVAudioSessionCategorySoloAmbient]) |
| return SoloAmbientSound; |
| if ([categoryString isEqual:AVAudioSessionCategoryPlayback]) |
| return MediaPlayback; |
| if ([categoryString isEqual:AVAudioSessionCategoryRecord]) |
| return RecordAudio; |
| if ([categoryString isEqual:AVAudioSessionCategoryPlayAndRecord]) |
| return PlayAndRecord; |
| if ([categoryString isEqual:AVAudioSessionCategoryAudioProcessing]) |
| return AudioProcessing; |
| return None; |
| } |
| |
| void AudioSession::setCategoryOverride(CategoryType category) |
| { |
| if (m_private->m_categoryOverride == category) |
| return; |
| |
| m_private->m_categoryOverride = category; |
| setCategory(category); |
| } |
| |
| AudioSession::CategoryType AudioSession::categoryOverride() const |
| { |
| return m_private->m_categoryOverride; |
| } |
| |
| float AudioSession::sampleRate() const |
| { |
| return [[AVAudioSession sharedInstance] sampleRate]; |
| } |
| |
| size_t AudioSession::bufferSize() const |
| { |
| return [[AVAudioSession sharedInstance] IOBufferDuration] * sampleRate(); |
| } |
| |
| size_t AudioSession::numberOfOutputChannels() const |
| { |
| return [[AVAudioSession sharedInstance] outputNumberOfChannels]; |
| } |
| |
| bool AudioSession::tryToSetActive(bool active) |
| { |
| NSError *error = nil; |
| [[AVAudioSession sharedInstance] setActive:active error:&error]; |
| return !error; |
| } |
| |
| size_t AudioSession::preferredBufferSize() const |
| { |
| return [[AVAudioSession sharedInstance] preferredIOBufferDuration] * sampleRate(); |
| } |
| |
| void AudioSession::setPreferredBufferSize(size_t bufferSize) |
| { |
| NSError *error = nil; |
| float duration = bufferSize / sampleRate(); |
| [[AVAudioSession sharedInstance] setPreferredIOBufferDuration:duration error:&error]; |
| ASSERT(!error); |
| } |
| |
| } |
| |
| #endif // USE(AUDIO_SESSION) && PLATFORM(IOS) |