| /* |
| * Copyright (c) 2017 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. |
| */ |
| |
| #include "modules/audio_device/include/audio_device_data_observer.h" |
| |
| #include "modules/audio_device/include/audio_device_defines.h" |
| #include "rtc_base/checks.h" |
| #include "rtc_base/ref_counted_object.h" |
| |
| namespace webrtc { |
| |
| namespace { |
| |
| // A wrapper over AudioDeviceModule that registers itself as AudioTransport |
| // callback and redirects the PCM data to AudioDeviceDataObserver callback. |
| class ADMWrapper : public AudioDeviceModule, public AudioTransport { |
| public: |
| ADMWrapper(const AudioLayer audio_layer, AudioDeviceDataObserver* observer) |
| : impl_(AudioDeviceModule::Create(audio_layer)), observer_(observer) { |
| // Register self as the audio transport callback for underlying ADM impl. |
| auto res = impl_->RegisterAudioCallback(this); |
| is_valid_ = (impl_.get() != nullptr) && (res == 0); |
| } |
| ~ADMWrapper() override { |
| audio_transport_ = nullptr; |
| observer_ = nullptr; |
| } |
| |
| // Make sure we have a valid ADM before returning it to user. |
| bool IsValid() { return is_valid_; } |
| |
| // AudioTransport methods overrides. |
| int32_t RecordedDataIsAvailable(const void* audioSamples, |
| const size_t nSamples, |
| const size_t nBytesPerSample, |
| const size_t nChannels, |
| const uint32_t samples_per_sec, |
| const uint32_t total_delay_ms, |
| const int32_t clockDrift, |
| const uint32_t currentMicLevel, |
| const bool keyPressed, |
| uint32_t& newMicLevel) override { |
| int32_t res = 0; |
| // Capture PCM data of locally captured audio. |
| if (observer_) { |
| observer_->OnCaptureData(audioSamples, nSamples, nBytesPerSample, |
| nChannels, samples_per_sec); |
| } |
| |
| // Send to the actual audio transport. |
| if (audio_transport_) { |
| res = audio_transport_->RecordedDataIsAvailable( |
| audioSamples, nSamples, nBytesPerSample, nChannels, samples_per_sec, |
| total_delay_ms, clockDrift, currentMicLevel, keyPressed, newMicLevel); |
| } |
| |
| return res; |
| } |
| |
| int32_t NeedMorePlayData(const size_t nSamples, |
| const size_t nBytesPerSample, |
| const size_t nChannels, |
| const uint32_t samples_per_sec, |
| void* audioSamples, |
| size_t& nSamplesOut, |
| int64_t* elapsed_time_ms, |
| int64_t* ntp_time_ms) override { |
| int32_t res = 0; |
| // Set out parameters to safe values to be sure not to return corrupted |
| // data. |
| nSamplesOut = 0; |
| *elapsed_time_ms = -1; |
| *ntp_time_ms = -1; |
| // Request data from audio transport. |
| if (audio_transport_) { |
| res = audio_transport_->NeedMorePlayData( |
| nSamples, nBytesPerSample, nChannels, samples_per_sec, audioSamples, |
| nSamplesOut, elapsed_time_ms, ntp_time_ms); |
| } |
| |
| // Capture rendered data. |
| if (observer_) { |
| observer_->OnRenderData(audioSamples, nSamples, nBytesPerSample, |
| nChannels, samples_per_sec); |
| } |
| |
| return res; |
| } |
| |
| void PullRenderData(int bits_per_sample, |
| int sample_rate, |
| size_t number_of_channels, |
| size_t number_of_frames, |
| void* audio_data, |
| int64_t* elapsed_time_ms, |
| int64_t* ntp_time_ms) override { |
| RTC_NOTREACHED(); |
| } |
| |
| // Override AudioDeviceModule's RegisterAudioCallback method to remember the |
| // actual audio transport (e.g.: voice engine). |
| int32_t RegisterAudioCallback(AudioTransport* audio_callback) override { |
| // Remember the audio callback to forward PCM data |
| audio_transport_ = audio_callback; |
| return 0; |
| } |
| |
| // AudioDeviceModule pass through method overrides. |
| int32_t ActiveAudioLayer(AudioLayer* audio_layer) const override { |
| return impl_->ActiveAudioLayer(audio_layer); |
| } |
| int32_t Init() override { return impl_->Init(); } |
| int32_t Terminate() override { return impl_->Terminate(); } |
| bool Initialized() const override { return impl_->Initialized(); } |
| int16_t PlayoutDevices() override { return impl_->PlayoutDevices(); } |
| int16_t RecordingDevices() override { return impl_->RecordingDevices(); } |
| int32_t PlayoutDeviceName(uint16_t index, |
| char name[kAdmMaxDeviceNameSize], |
| char guid[kAdmMaxGuidSize]) override { |
| return impl_->PlayoutDeviceName(index, name, guid); |
| } |
| int32_t RecordingDeviceName(uint16_t index, |
| char name[kAdmMaxDeviceNameSize], |
| char guid[kAdmMaxGuidSize]) override { |
| return impl_->RecordingDeviceName(index, name, guid); |
| } |
| int32_t SetPlayoutDevice(uint16_t index) override { |
| return impl_->SetPlayoutDevice(index); |
| } |
| int32_t SetPlayoutDevice(WindowsDeviceType device) override { |
| return impl_->SetPlayoutDevice(device); |
| } |
| int32_t SetRecordingDevice(uint16_t index) override { |
| return impl_->SetRecordingDevice(index); |
| } |
| int32_t SetRecordingDevice(WindowsDeviceType device) override { |
| return impl_->SetRecordingDevice(device); |
| } |
| int32_t PlayoutIsAvailable(bool* available) override { |
| return impl_->PlayoutIsAvailable(available); |
| } |
| int32_t InitPlayout() override { return impl_->InitPlayout(); } |
| bool PlayoutIsInitialized() const override { |
| return impl_->PlayoutIsInitialized(); |
| } |
| int32_t RecordingIsAvailable(bool* available) override { |
| return impl_->RecordingIsAvailable(available); |
| } |
| int32_t InitRecording() override { return impl_->InitRecording(); } |
| bool RecordingIsInitialized() const override { |
| return impl_->RecordingIsInitialized(); |
| } |
| int32_t StartPlayout() override { return impl_->StartPlayout(); } |
| int32_t StopPlayout() override { return impl_->StopPlayout(); } |
| bool Playing() const override { return impl_->Playing(); } |
| int32_t StartRecording() override { return impl_->StartRecording(); } |
| int32_t StopRecording() override { return impl_->StopRecording(); } |
| bool Recording() const override { return impl_->Recording(); } |
| int32_t InitSpeaker() override { return impl_->InitSpeaker(); } |
| bool SpeakerIsInitialized() const override { |
| return impl_->SpeakerIsInitialized(); |
| } |
| int32_t InitMicrophone() override { return impl_->InitMicrophone(); } |
| bool MicrophoneIsInitialized() const override { |
| return impl_->MicrophoneIsInitialized(); |
| } |
| int32_t SpeakerVolumeIsAvailable(bool* available) override { |
| return impl_->SpeakerVolumeIsAvailable(available); |
| } |
| int32_t SetSpeakerVolume(uint32_t volume) override { |
| return impl_->SetSpeakerVolume(volume); |
| } |
| int32_t SpeakerVolume(uint32_t* volume) const override { |
| return impl_->SpeakerVolume(volume); |
| } |
| int32_t MaxSpeakerVolume(uint32_t* max_volume) const override { |
| return impl_->MaxSpeakerVolume(max_volume); |
| } |
| int32_t MinSpeakerVolume(uint32_t* min_volume) const override { |
| return impl_->MinSpeakerVolume(min_volume); |
| } |
| int32_t MicrophoneVolumeIsAvailable(bool* available) override { |
| return impl_->MicrophoneVolumeIsAvailable(available); |
| } |
| int32_t SetMicrophoneVolume(uint32_t volume) override { |
| return impl_->SetMicrophoneVolume(volume); |
| } |
| int32_t MicrophoneVolume(uint32_t* volume) const override { |
| return impl_->MicrophoneVolume(volume); |
| } |
| int32_t MaxMicrophoneVolume(uint32_t* max_volume) const override { |
| return impl_->MaxMicrophoneVolume(max_volume); |
| } |
| int32_t MinMicrophoneVolume(uint32_t* min_volume) const override { |
| return impl_->MinMicrophoneVolume(min_volume); |
| } |
| int32_t SpeakerMuteIsAvailable(bool* available) override { |
| return impl_->SpeakerMuteIsAvailable(available); |
| } |
| int32_t SetSpeakerMute(bool enable) override { |
| return impl_->SetSpeakerMute(enable); |
| } |
| int32_t SpeakerMute(bool* enabled) const override { |
| return impl_->SpeakerMute(enabled); |
| } |
| int32_t MicrophoneMuteIsAvailable(bool* available) override { |
| return impl_->MicrophoneMuteIsAvailable(available); |
| } |
| int32_t SetMicrophoneMute(bool enable) override { |
| return impl_->SetMicrophoneMute(enable); |
| } |
| int32_t MicrophoneMute(bool* enabled) const override { |
| return impl_->MicrophoneMute(enabled); |
| } |
| int32_t StereoPlayoutIsAvailable(bool* available) const override { |
| return impl_->StereoPlayoutIsAvailable(available); |
| } |
| int32_t SetStereoPlayout(bool enable) override { |
| return impl_->SetStereoPlayout(enable); |
| } |
| int32_t StereoPlayout(bool* enabled) const override { |
| return impl_->StereoPlayout(enabled); |
| } |
| int32_t StereoRecordingIsAvailable(bool* available) const override { |
| return impl_->StereoRecordingIsAvailable(available); |
| } |
| int32_t SetStereoRecording(bool enable) override { |
| return impl_->SetStereoRecording(enable); |
| } |
| int32_t StereoRecording(bool* enabled) const override { |
| return impl_->StereoRecording(enabled); |
| } |
| int32_t PlayoutDelay(uint16_t* delay_ms) const override { |
| return impl_->PlayoutDelay(delay_ms); |
| } |
| bool BuiltInAECIsAvailable() const override { |
| return impl_->BuiltInAECIsAvailable(); |
| } |
| bool BuiltInAGCIsAvailable() const override { |
| return impl_->BuiltInAGCIsAvailable(); |
| } |
| bool BuiltInNSIsAvailable() const override { |
| return impl_->BuiltInNSIsAvailable(); |
| } |
| int32_t EnableBuiltInAEC(bool enable) override { |
| return impl_->EnableBuiltInAEC(enable); |
| } |
| int32_t EnableBuiltInAGC(bool enable) override { |
| return impl_->EnableBuiltInAGC(enable); |
| } |
| int32_t EnableBuiltInNS(bool enable) override { |
| return impl_->EnableBuiltInNS(enable); |
| } |
| // Only supported on iOS. |
| #if defined(WEBRTC_IOS) |
| int GetPlayoutAudioParameters(AudioParameters* params) const override { |
| return impl_->GetPlayoutAudioParameters(params); |
| } |
| int GetRecordAudioParameters(AudioParameters* params) const override { |
| return impl_->GetRecordAudioParameters(params); |
| } |
| #endif // WEBRTC_IOS |
| |
| protected: |
| rtc::scoped_refptr<AudioDeviceModule> impl_; |
| AudioDeviceDataObserver* observer_ = nullptr; |
| AudioTransport* audio_transport_ = nullptr; |
| bool is_valid_ = false; |
| }; |
| |
| } // namespace |
| |
| rtc::scoped_refptr<AudioDeviceModule> CreateAudioDeviceWithDataObserver( |
| const AudioDeviceModule::AudioLayer audio_layer, |
| AudioDeviceDataObserver* observer) { |
| rtc::scoped_refptr<ADMWrapper> audio_device( |
| new rtc::RefCountedObject<ADMWrapper>(audio_layer, observer)); |
| |
| if (!audio_device->IsValid()) { |
| return nullptr; |
| } |
| |
| return audio_device; |
| } |
| } // namespace webrtc |
