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83 lines
2.5 KiB
83 lines
2.5 KiB
/*
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* Copyright (C) 2017 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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#ifndef AAUDIO_SERVICE_ENDPOINT_SHARED_H
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#define AAUDIO_SERVICE_ENDPOINT_SHARED_H
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#include <atomic>
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#include <mutex>
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#include <android-base/thread_annotations.h>
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#include "AAudioServiceEndpoint.h"
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#include "client/AudioStreamInternal.h"
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#include "client/AudioStreamInternalPlay.h"
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#include "AAudioServiceStreamShared.h"
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#include "AAudioServiceStreamMMAP.h"
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#include "AAudioService.h"
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namespace aaudio {
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/**
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* This manages an AudioStreamInternal that is shared by multiple Client streams.
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*/
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class AAudioServiceEndpointShared : public AAudioServiceEndpoint {
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public:
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explicit AAudioServiceEndpointShared(AudioStreamInternal *streamInternal);
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virtual ~AAudioServiceEndpointShared() = default;
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std::string dump() const override;
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aaudio_result_t open(const aaudio::AAudioStreamRequest &request) override;
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void close() override;
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aaudio_result_t startStream(android::sp<AAudioServiceStreamBase> stream,
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audio_port_handle_t *clientHandle) override;
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aaudio_result_t stopStream(android::sp<AAudioServiceStreamBase> stream,
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audio_port_handle_t clientHandle) override;
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aaudio_result_t getFreeRunningPosition(int64_t *positionFrames, int64_t *timeNanos) override;
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aaudio_result_t getTimestamp(int64_t *positionFrames, int64_t *timeNanos) override;
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virtual void *callbackLoop() = 0;
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AudioStreamInternal *getStreamInternal() const {
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return mStreamInternal.get();
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};
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protected:
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aaudio_result_t startSharingThread_l() REQUIRES(mLockStreams);
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aaudio_result_t stopSharingThread();
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// An MMAP stream that is shared by multiple clients.
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android::sp<AudioStreamInternal> mStreamInternal;
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std::atomic<bool> mCallbackEnabled{false};
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std::atomic<int> mRunningStreamCount{0};
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};
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}
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#endif //AAUDIO_SERVICE_ENDPOINT_SHARED_H
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