130 lines
6.3 KiB
C++
130 lines
6.3 KiB
C++
/*
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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 CPP_EVS_MANAGER_1_1_VIRTUALCAMERA_H_
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#define CPP_EVS_MANAGER_1_1_VIRTUALCAMERA_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 <android/hardware/automotive/evs/1.1/types.h>
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#include <utils/Mutex.h>
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#include <deque>
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#include <set>
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#include <thread> // NOLINT
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#include <unordered_map>
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namespace android::automotive::evs::V1_1::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 hardware::automotive::evs::V1_1::IEvsCamera {
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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 static_cast<int>(mStream_1_1 != nullptr); }
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std::vector<sp<HalCamera>> getHalCameras();
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void setDescriptor(hardware::automotive::evs::V1_1::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 hardware::automotive::evs::V1_1::EvsEventDesc& event);
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bool deliverFrame(const hardware::automotive::evs::V1_1::BufferDesc& bufDesc);
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// Methods from hardware::automotive::evs::V1_0::IEvsCamera follow.
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hardware::Return<void> getCameraInfo(getCameraInfo_cb _hidl_cb) override;
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hardware::Return<hardware::automotive::evs::V1_0::EvsResult> setMaxFramesInFlight(
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uint32_t bufferCount) override;
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hardware::Return<hardware::automotive::evs::V1_0::EvsResult> startVideoStream(
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const ::android::sp<hardware::automotive::evs::V1_0::IEvsCameraStream>& stream)
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override;
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hardware::Return<void> doneWithFrame(
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const hardware::automotive::evs::V1_0::BufferDesc& buffer) override;
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hardware::Return<void> stopVideoStream() override;
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hardware::Return<int32_t> getExtendedInfo(uint32_t opaqueIdentifier) override;
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hardware::Return<hardware::automotive::evs::V1_0::EvsResult> setExtendedInfo(
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uint32_t opaqueIdentifier, int32_t opaqueValue) override;
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// Methods from hardware::automotive::evs::V1_1::IEvsCamera follow.
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hardware::Return<void> getCameraInfo_1_1(getCameraInfo_1_1_cb _hidl_cb) override;
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hardware::Return<void> getPhysicalCameraInfo(const hardware::hidl_string& deviceId,
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getPhysicalCameraInfo_cb _hidl_cb) override;
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hardware::Return<hardware::automotive::evs::V1_0::EvsResult> doneWithFrame_1_1(
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const hardware::hidl_vec<hardware::automotive::evs::V1_1::BufferDesc>& buffer) override;
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hardware::Return<hardware::automotive::evs::V1_0::EvsResult> pauseVideoStream() override {
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return hardware::automotive::evs::V1_0::EvsResult::UNDERLYING_SERVICE_ERROR;
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}
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hardware::Return<hardware::automotive::evs::V1_0::EvsResult> resumeVideoStream() override {
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return hardware::automotive::evs::V1_0::EvsResult::UNDERLYING_SERVICE_ERROR;
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}
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hardware::Return<hardware::automotive::evs::V1_0::EvsResult> setMaster() override;
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hardware::Return<hardware::automotive::evs::V1_0::EvsResult> forceMaster(
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const sp<hardware::automotive::evs::V1_0::IEvsDisplay>& display) override;
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hardware::Return<hardware::automotive::evs::V1_0::EvsResult> unsetMaster() override;
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hardware::Return<void> getParameterList(getParameterList_cb _hidl_cb) override;
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hardware::Return<void> getIntParameterRange(hardware::automotive::evs::V1_1::CameraParam id,
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getIntParameterRange_cb _hidl_cb) override;
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hardware::Return<void> setIntParameter(hardware::automotive::evs::V1_1::CameraParam id,
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int32_t value, setIntParameter_cb _hidl_cb) override;
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hardware::Return<void> getIntParameter(hardware::automotive::evs::V1_1::CameraParam id,
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getIntParameter_cb _hidl_cb) override;
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hardware::Return<hardware::automotive::evs::V1_0::EvsResult> setExtendedInfo_1_1(
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uint32_t opaqueIdentifier, const hardware::hidl_vec<uint8_t>& opaqueValue) override;
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hardware::Return<void> getExtendedInfo_1_1(uint32_t opaqueIdentifier,
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getExtendedInfo_1_1_cb _hidl_cb) override;
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hardware::Return<void> importExternalBuffers(
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const hardware::hidl_vec<hardware::automotive::evs::V1_1::BufferDesc>& 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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std::unordered_map<std::string, wp<HalCamera>> mHalCamera;
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sp<hardware::automotive::evs::V1_0::IEvsCameraStream> mStream;
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sp<hardware::automotive::evs::V1_1::IEvsCameraStream> 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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std::unordered_map<std::string, std::deque<hardware::automotive::evs::V1_1::BufferDesc>>
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mFramesHeld;
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std::thread mCaptureThread;
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hardware::automotive::evs::V1_1::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 android::automotive::evs::V1_1::implementation
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#endif // CPP_EVS_MANAGER_1_1_VIRTUALCAMERA_H_
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