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53 lines
1.6 KiB
53 lines
1.6 KiB
4 months ago
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/*
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* Copyright (C) 2019 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 "SoundPool.h"
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#include <deque>
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#include <mutex>
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namespace android::soundpool {
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/**
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* SoundDecoder handles background decoding tasks.
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*/
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class SoundDecoder {
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public:
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SoundDecoder(SoundManager* soundManager, size_t threads);
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~SoundDecoder();
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void loadSound(int32_t soundID) NO_THREAD_SAFETY_ANALYSIS; // uses unique_lock
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void quit();
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private:
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// The decode thread function.
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void run(int32_t id) NO_THREAD_SAFETY_ANALYSIS; // uses unique_lock
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SoundManager* const mSoundManager; // set in constructor, has own lock
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std::unique_ptr<ThreadPool> mThreadPool; // set in constructor, has own lock
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std::mutex mLock;
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std::condition_variable mQueueSpaceAvailable GUARDED_BY(mLock);
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std::condition_variable mQueueDataAvailable GUARDED_BY(mLock);
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std::deque<int32_t> mSoundIDs GUARDED_BY(mLock);
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bool mQuit GUARDED_BY(mLock) = false;
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};
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} // end namespace android::soundpool
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