Konsta
117 lines
4.9 KiB
C++
117 lines
4.9 KiB
C++
/*
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* Copyright (C) 2023 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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*/
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#pragma once
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#include <vector>
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#include "core-impl/Stream.h"
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#include "deprecated/StreamSwitcher.h"
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#include "r_submix/SubmixRoute.h"
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namespace aidl::android::hardware::audio::core {
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class StreamRemoteSubmix : public StreamCommonImpl {
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public:
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StreamRemoteSubmix(
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StreamContext* context, const Metadata& metadata,
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const ::aidl::android::media::audio::common::AudioDeviceAddress& deviceAddress);
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~StreamRemoteSubmix();
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// Methods of 'DriverInterface'.
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::android::status_t init(DriverCallbackInterface*) override;
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::android::status_t drain(StreamDescriptor::DrainMode) override;
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::android::status_t flush() override;
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::android::status_t pause() override;
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::android::status_t standby() override;
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::android::status_t start() override;
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::android::status_t transfer(void* buffer, size_t frameCount, size_t* actualFrameCount,
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int32_t* latencyMs) override;
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::android::status_t refinePosition(StreamDescriptor::Position* position) override;
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void shutdown() override;
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// Overridden methods of 'StreamCommonImpl', called on a Binder thread.
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ndk::ScopedAStatus prepareToClose() override;
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private:
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long getDelayInUsForFrameCount(size_t frameCount);
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size_t getStreamPipeSizeInFrames();
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::android::status_t outWrite(void* buffer, size_t frameCount, size_t* actualFrameCount);
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::android::status_t inRead(void* buffer, size_t frameCount, size_t* actualFrameCount);
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const ::aidl::android::media::audio::common::AudioDeviceAddress mDeviceAddress;
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const bool mIsInput;
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r_submix::AudioConfig mStreamConfig;
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std::shared_ptr<r_submix::SubmixRoute> mCurrentRoute = nullptr;
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// Limit for the number of error log entries to avoid spamming the logs.
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static constexpr int kMaxErrorLogs = 5;
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// The duration of kMaxReadFailureAttempts * READ_ATTEMPT_SLEEP_MS must be strictly inferior
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// to the duration of a record buffer at the current record sample rate (of the device, not of
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// the recording itself). Here we have: 3 * 5ms = 15ms < 1024 frames * 1000 / 48000 = 21.333ms
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static constexpr int kMaxReadFailureAttempts = 3;
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// 5ms between two read attempts when pipe is empty
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static constexpr int kReadAttemptSleepUs = 5000;
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int64_t mStartTimeNs = 0;
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long mFramesSinceStart = 0;
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int mReadErrorCount = 0;
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int mReadFailureCount = 0;
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int mWriteShutdownCount = 0;
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};
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class StreamInRemoteSubmix final : public StreamIn, public deprecated::StreamSwitcher {
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public:
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friend class ndk::SharedRefBase;
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StreamInRemoteSubmix(
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StreamContext&& context,
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const ::aidl::android::hardware::audio::common::SinkMetadata& sinkMetadata,
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const std::vector<::aidl::android::media::audio::common::MicrophoneInfo>& microphones);
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private:
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DeviceSwitchBehavior switchCurrentStream(
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const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices)
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override;
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std::unique_ptr<deprecated::StreamCommonInterfaceEx> createNewStream(
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const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices,
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StreamContext* context, const Metadata& metadata) override;
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void onClose(StreamDescriptor::State) override { defaultOnClose(); }
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ndk::ScopedAStatus getActiveMicrophones(
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std::vector<::aidl::android::media::audio::common::MicrophoneDynamicInfo>* _aidl_return)
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override;
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};
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class StreamOutRemoteSubmix final : public StreamOut, public deprecated::StreamSwitcher {
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public:
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friend class ndk::SharedRefBase;
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StreamOutRemoteSubmix(
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StreamContext&& context,
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const ::aidl::android::hardware::audio::common::SourceMetadata& sourceMetadata,
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const std::optional<::aidl::android::media::audio::common::AudioOffloadInfo>&
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offloadInfo);
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private:
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DeviceSwitchBehavior switchCurrentStream(
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const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices)
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override;
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std::unique_ptr<deprecated::StreamCommonInterfaceEx> createNewStream(
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const std::vector<::aidl::android::media::audio::common::AudioDevice>& devices,
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StreamContext* context, const Metadata& metadata) override;
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void onClose(StreamDescriptor::State) override { defaultOnClose(); }
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};
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} // namespace aidl::android::hardware::audio::core
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