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82 lines
3.4 KiB
C++
82 lines
3.4 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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#include <AudioInput/AudioInputMicrophone.h>
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#include <AzCore/Casting/numeric_cast.h>
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#include <MicrophoneBus.h>
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namespace Audio
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{
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///////////////////////////////////////////////////////////////////////////////////////////////
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// Audio Input Source : Microphone
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///////////////////////////////////////////////////////////////////////////////////////////////
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///////////////////////////////////////////////////////////////////////////////////////////////
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AudioInputMicrophone::AudioInputMicrophone(const SAudioInputConfig& sourceConfig)
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{
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m_config = sourceConfig;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////
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AudioInputMicrophone::~AudioInputMicrophone()
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{
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}
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///////////////////////////////////////////////////////////////////////////////////////////////
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void AudioInputMicrophone::ReadInput([[maybe_unused]] const AudioStreamData& data)
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{
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// ReadInput only used when PUSHing source data in, and would need an internal buffer to store
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// the data temporarily. For Microphone, the microphone impl has its own internal buffer, so
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// we only need to PULL data in WriteOutput.
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}
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///////////////////////////////////////////////////////////////////////////////////////////////
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void AudioInputMicrophone::WriteOutput(AkAudioBuffer* akBuffer)
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{
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AZ::u32 numSampleFramesRequested = (akBuffer->MaxFrames() - akBuffer->uValidFrames);
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AkSampleType* channelData[2] = { nullptr, nullptr };
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for (AZ::u32 channel = 0; channel < akBuffer->NumChannels(); ++channel)
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{
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channelData[channel] = akBuffer->GetChannel(channel);
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}
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size_t numSampleFramesCopied = 0;
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MicrophoneRequestBus::BroadcastResult(numSampleFramesCopied, &MicrophoneRequestBus::Events::GetData, reinterpret_cast<void**>(channelData), numSampleFramesRequested, m_config, true);
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akBuffer->uValidFrames += aznumeric_cast<AkUInt16>(numSampleFramesCopied);
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akBuffer->eState = (numSampleFramesCopied > 0) ? AK_DataReady : AK_NoDataReady;
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// handle the AK_NoMoreData condition?
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}
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///////////////////////////////////////////////////////////////////////////////////////////////
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void AudioInputMicrophone::OnDeactivated()
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{
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m_config.m_numChannels = 0;
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}
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///////////////////////////////////////////////////////////////////////////////////////////////
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bool AudioInputMicrophone::IsOk() const
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{
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// Mono and Stereo only
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bool ok = (m_config.m_numChannels == 1 || m_config.m_numChannels == 2);
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// 32-bit float or 16-bit int only
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ok &= (m_config.m_sampleType == AudioInputSampleType::Float && m_config.m_bitsPerSample == 32)
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|| (m_config.m_sampleType == AudioInputSampleType::Int && m_config.m_bitsPerSample == 16);
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return ok;
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}
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} // namespace Audio
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