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152 lines
6.5 KiB
152 lines
6.5 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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#ifndef ANDROID_AUTOMOTIVE_EVS_V1_1_CAMERAPROXY_H
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#define ANDROID_AUTOMOTIVE_EVS_V1_1_CAMERAPROXY_H
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#include <android/hardware/automotive/evs/1.1/types.h>
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#include <android/hardware/automotive/evs/1.1/IEvsCamera.h>
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#include <android/hardware/automotive/evs/1.1/IEvsCameraStream.h>
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#include <android/hardware/automotive/evs/1.1/IEvsDisplay.h>
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#include <deque>
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#include <set>
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#include <thread>
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#include <unordered_map>
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#include <utils/Mutex.h>
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using namespace std;
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using namespace ::android::hardware::automotive::evs::V1_1;
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using ::android::hardware::Return;
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using ::android::hardware::Void;
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using ::android::hardware::hidl_handle;
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using ::android::hardware::hidl_string;
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using ::android::hardware::hidl_vec;
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using ::android::hardware::automotive::evs::V1_0::EvsResult;
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using ::android::hardware::automotive::evs::V1_0::IEvsDisplay;
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using BufferDesc_1_0 = ::android::hardware::automotive::evs::V1_0::BufferDesc;
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using BufferDesc_1_1 = ::android::hardware::automotive::evs::V1_1::BufferDesc;
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using IEvsCamera_1_0 = ::android::hardware::automotive::evs::V1_0::IEvsCamera;
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using IEvsCamera_1_1 = ::android::hardware::automotive::evs::V1_1::IEvsCamera;
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using IEvsCameraStream_1_0 = ::android::hardware::automotive::evs::V1_0::IEvsCameraStream;
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using IEvsCameraStream_1_1 = ::android::hardware::automotive::evs::V1_1::IEvsCameraStream;
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using IEvsDisplay_1_0 = ::android::hardware::automotive::evs::V1_0::IEvsDisplay;
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using IEvsDisplay_1_1 = ::android::hardware::automotive::evs::V1_1::IEvsDisplay;
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namespace android {
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namespace automotive {
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namespace evs {
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namespace V1_1 {
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namespace implementation {
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class HalCamera; // From HalCamera.h
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// This class represents an EVS camera to the client application. As such it presents
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// the IEvsCamera interface, and also proxies the frame delivery to the client's
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// IEvsCameraStream object.
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class VirtualCamera : public IEvsCamera_1_1 {
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public:
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explicit VirtualCamera(const std::vector<sp<HalCamera>>& halCameras);
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virtual ~VirtualCamera();
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unsigned getAllowedBuffers() { return mFramesAllowed; };
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bool isStreaming() { return mStreamState == RUNNING; }
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bool getVersion() const { return (int)(mStream_1_1 != nullptr); }
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vector<sp<HalCamera>>
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getHalCameras();
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void setDescriptor(CameraDesc* desc) { mDesc = desc; }
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// Proxy to receive frames and forward them to the client's stream
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bool notify(const EvsEventDesc& event);
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bool deliverFrame(const BufferDesc& bufDesc);
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// Methods from ::android::hardware::automotive::evs::V1_0::IEvsCamera follow.
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Return<void> getCameraInfo(getCameraInfo_cb _hidl_cb) override;
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Return<EvsResult> setMaxFramesInFlight(uint32_t bufferCount) override;
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Return<EvsResult> startVideoStream(const ::android::sp<IEvsCameraStream_1_0>& stream) override;
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Return<void> doneWithFrame(const BufferDesc_1_0& buffer) override;
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Return<void> stopVideoStream() override;
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Return<int32_t> getExtendedInfo(uint32_t opaqueIdentifier) override;
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Return<EvsResult> setExtendedInfo(uint32_t opaqueIdentifier, int32_t opaqueValue) override;
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// Methods from ::android::hardware::automotive::evs::V1_1::IEvsCamera follow.
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Return<void> getCameraInfo_1_1(getCameraInfo_1_1_cb _hidl_cb) override;
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Return<void> getPhysicalCameraInfo(const hidl_string& deviceId,
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getPhysicalCameraInfo_cb _hidl_cb) override;
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Return<EvsResult> doneWithFrame_1_1(const hardware::hidl_vec<BufferDesc_1_1>& buffer) override;
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Return<EvsResult> pauseVideoStream() override { return EvsResult::UNDERLYING_SERVICE_ERROR; }
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Return<EvsResult> resumeVideoStream() override { return EvsResult::UNDERLYING_SERVICE_ERROR; }
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Return<EvsResult> setMaster() override;
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Return<EvsResult> forceMaster(const sp<IEvsDisplay_1_0>& display) override;
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Return<EvsResult> unsetMaster() override;
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Return<void> getParameterList(getParameterList_cb _hidl_cb) override;
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Return<void> getIntParameterRange(CameraParam id,
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getIntParameterRange_cb _hidl_cb) override;
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Return<void> setIntParameter(CameraParam id, int32_t value,
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setIntParameter_cb _hidl_cb) override;
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Return<void> getIntParameter(CameraParam id,
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getIntParameter_cb _hidl_cb) override;
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Return<EvsResult> setExtendedInfo_1_1(uint32_t opaqueIdentifier,
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const hidl_vec<uint8_t>& opaqueValue) override;
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Return<void> getExtendedInfo_1_1(uint32_t opaqueIdentifier,
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getExtendedInfo_1_1_cb _hidl_cb) override;
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Return<void> importExternalBuffers(const hidl_vec<BufferDesc_1_1>& buffers,
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importExternalBuffers_cb _hidl_cb) override;
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// Dump current status to a given file descriptor
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std::string toString(const char* indent = "") const;
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private:
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void shutdown();
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// The low level camera interface that backs this proxy
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unordered_map<string,
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wp<HalCamera>> mHalCamera;
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sp<IEvsCameraStream_1_0> mStream;
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sp<IEvsCameraStream_1_1> mStream_1_1;
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unsigned mFramesAllowed = 1;
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enum {
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STOPPED,
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RUNNING,
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STOPPING,
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} mStreamState;
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unordered_map<string,
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deque<BufferDesc_1_1>> mFramesHeld;
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thread mCaptureThread;
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CameraDesc* mDesc;
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mutable std::mutex mFrameDeliveryMutex;
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std::condition_variable mFramesReadySignal;
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std::set<std::string> mSourceCameras GUARDED_BY(mFrameDeliveryMutex);
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};
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} // namespace implementation
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} // namespace V1_1
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} // namespace evs
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} // namespace automotive
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} // namespace android
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#endif // ANDROID_AUTOMOTIVE_EVS_V1_1_CAMERAPROXY_H
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