73 lines
2.6 KiB
C++
73 lines
2.6 KiB
C++
// Copyright (C) 2021 The Android Open Source Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License 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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// See the License for the specific language governing permissions and
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// limitations under the License.
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#pragma once
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#include <aidl/device/google/atv/audio_proxy/BnOutputStream.h>
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#include <fmq/AidlMessageQueue.h>
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#include <fmq/EventFlag.h>
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#include <utils/Thread.h>
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using aidl::android::hardware::common::fmq::MQDescriptor;
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using aidl::android::hardware::common::fmq::SynchronizedReadWrite;
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using android::AidlMessageQueue;
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using android::sp;
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using android::Thread;
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using android::hardware::EventFlag;
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using aidl::device::google::atv::audio_proxy::AudioDrain;
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using aidl::device::google::atv::audio_proxy::BnOutputStream;
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using aidl::device::google::atv::audio_proxy::WriteStatus;
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namespace audio_proxy {
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class AudioProxyStreamOut;
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class OutputStreamImpl : public BnOutputStream {
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public:
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using DataMQ = AidlMessageQueue<int8_t, SynchronizedReadWrite>;
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using DataMQDesc = MQDescriptor<int8_t, SynchronizedReadWrite>;
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using StatusMQ = AidlMessageQueue<WriteStatus, SynchronizedReadWrite>;
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using StatusMQDesc = MQDescriptor<WriteStatus, SynchronizedReadWrite>;
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explicit OutputStreamImpl(std::unique_ptr<AudioProxyStreamOut> stream);
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~OutputStreamImpl() override;
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ndk::ScopedAStatus prepareForWriting(int32_t frameSize, int32_t framesCount,
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DataMQDesc* dataMQDesc,
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StatusMQDesc* statusMQDesc) override;
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ndk::ScopedAStatus standby() override;
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ndk::ScopedAStatus close() override;
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ndk::ScopedAStatus pause() override;
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ndk::ScopedAStatus resume() override;
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ndk::ScopedAStatus drain(AudioDrain type) override;
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ndk::ScopedAStatus flush() override;
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ndk::ScopedAStatus setVolume(float left, float right) override;
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private:
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typedef void (*EventFlagDeleter)(EventFlag*);
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ndk::ScopedAStatus closeImpl();
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std::unique_ptr<AudioProxyStreamOut> mStream;
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std::unique_ptr<DataMQ> mDataMQ;
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std::unique_ptr<StatusMQ> mStatusMQ;
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std::unique_ptr<EventFlag, EventFlagDeleter> mEventFlag;
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std::atomic<bool> mStopWriteThread = false;
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sp<Thread> mWriteThread;
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};
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} // namespace audio_proxy
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