143 lines
5.7 KiB
C++
143 lines
5.7 KiB
C++
/*
|
|
* Copyright (C) 2022 The Android Open Source Project
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef CPP_EVS_MANAGER_AIDL_INCLUDE_HALCAMERA_H
|
|
#define CPP_EVS_MANAGER_AIDL_INCLUDE_HALCAMERA_H
|
|
|
|
#include "stats/include/CameraUsageStats.h"
|
|
|
|
#include <aidl/android/hardware/automotive/evs/BnEvsCameraStream.h>
|
|
#include <aidl/android/hardware/automotive/evs/BufferDesc.h>
|
|
#include <aidl/android/hardware/automotive/evs/CameraParam.h>
|
|
#include <aidl/android/hardware/automotive/evs/EvsEventDesc.h>
|
|
#include <aidl/android/hardware/automotive/evs/EvsResult.h>
|
|
#include <aidl/android/hardware/automotive/evs/IEvsCamera.h>
|
|
#include <aidl/android/hardware/automotive/evs/Stream.h>
|
|
#include <utils/Mutex.h>
|
|
|
|
#include <deque>
|
|
#include <list>
|
|
|
|
namespace aidl::android::automotive::evs::implementation {
|
|
|
|
namespace aidlevs = ::aidl::android::hardware::automotive::evs;
|
|
|
|
class VirtualCamera; // From VirtualCamera.h
|
|
|
|
// This class wraps the actual hardware IEvsCamera objects. There is a one to many
|
|
// relationship between instances of this class and instances of the VirtualCamera class.
|
|
// This class implements the IEvsCameraStream interface so that it can receive the video
|
|
// stream from the hardware camera and distribute it to the associated VirtualCamera objects.
|
|
class HalCamera : public ::aidl::android::hardware::automotive::evs::BnEvsCameraStream {
|
|
public:
|
|
// Methods from ::aidl::android::hardware::automotive::evs::IEvsCameraStream follow.
|
|
::ndk::ScopedAStatus deliverFrame(const std::vector<aidlevs::BufferDesc>& buffer) override;
|
|
::ndk::ScopedAStatus notify(const aidlevs::EvsEventDesc& event) override;
|
|
|
|
HalCamera(const std::shared_ptr<aidlevs::IEvsCamera>& hwCamera, std::string deviceId = "",
|
|
int32_t recordId = 0, aidlevs::Stream cfg = {}) :
|
|
mHwCamera(hwCamera),
|
|
mId(deviceId),
|
|
mStreamConfig(cfg),
|
|
mTimeCreatedMs(::android::uptimeMillis()),
|
|
mUsageStats(new CameraUsageStats(recordId)) {
|
|
mCurrentRequests = &mFrameRequests[0];
|
|
mNextRequests = &mFrameRequests[1];
|
|
}
|
|
|
|
virtual ~HalCamera();
|
|
|
|
// Factory methods for client VirtualCameras
|
|
std::shared_ptr<VirtualCamera> makeVirtualCamera();
|
|
bool ownVirtualCamera(const std::shared_ptr<VirtualCamera>& virtualCamera);
|
|
void disownVirtualCamera(const VirtualCamera* virtualCamera);
|
|
|
|
// Implementation details
|
|
std::shared_ptr<aidlevs::IEvsCamera>& getHwCamera() { return mHwCamera; }
|
|
unsigned getClientCount() { return mClients.size(); };
|
|
std::string getId() { return mId; }
|
|
aidlevs::Stream& getStreamConfig() { return mStreamConfig; }
|
|
bool changeFramesInFlight(int delta);
|
|
bool changeFramesInFlight(const std::vector<aidlevs::BufferDesc>& buffers, int* delta);
|
|
void requestNewFrame(std::shared_ptr<VirtualCamera> virtualCamera, int64_t timestamp);
|
|
|
|
::ndk::ScopedAStatus clientStreamStarting();
|
|
void clientStreamEnding(const VirtualCamera* client);
|
|
::ndk::ScopedAStatus doneWithFrame(aidlevs::BufferDesc buffer);
|
|
::ndk::ScopedAStatus setPrimaryClient(const std::shared_ptr<VirtualCamera>& virtualCamera);
|
|
::ndk::ScopedAStatus forcePrimaryClient(const std::shared_ptr<VirtualCamera>& virtualCamera);
|
|
::ndk::ScopedAStatus unsetPrimaryClient(const VirtualCamera* virtualCamera);
|
|
::ndk::ScopedAStatus setParameter(const std::shared_ptr<VirtualCamera>& virtualCamera,
|
|
aidlevs::CameraParam id, int32_t* value);
|
|
::ndk::ScopedAStatus getParameter(aidlevs::CameraParam id, int32_t* value);
|
|
|
|
// Returns a snapshot of collected usage statistics
|
|
CameraUsageStatsRecord getStats() const;
|
|
|
|
// Returns active stream configuration
|
|
aidlevs::Stream getStreamConfiguration() const;
|
|
|
|
// Returns a string showing the current status
|
|
std::string toString(const char* indent = "") const;
|
|
|
|
// Returns a string showing current stream configuration
|
|
static std::string toString(aidlevs::Stream configuration, const char* indent = "");
|
|
|
|
private:
|
|
std::shared_ptr<aidlevs::IEvsCamera> mHwCamera;
|
|
std::list<std::weak_ptr<VirtualCamera>> mClients;
|
|
|
|
enum {
|
|
STOPPED,
|
|
RUNNING,
|
|
STOPPING,
|
|
} mStreamState = STOPPED;
|
|
|
|
struct FrameRecord {
|
|
uint32_t frameId;
|
|
uint32_t refCount;
|
|
FrameRecord(uint32_t id) : frameId(id), refCount(0){};
|
|
};
|
|
std::vector<FrameRecord> mFrames;
|
|
std::weak_ptr<VirtualCamera> mPrimaryClient;
|
|
std::string mId;
|
|
aidlevs::Stream mStreamConfig;
|
|
|
|
struct FrameRequest {
|
|
std::weak_ptr<VirtualCamera> client;
|
|
int64_t timestamp = -1;
|
|
};
|
|
|
|
void cancelCaptureRequestFromClientLocked(std::deque<FrameRequest>* requests,
|
|
const VirtualCamera* client) REQUIRES(mFrameMutex);
|
|
|
|
// synchronization
|
|
mutable std::mutex mFrameMutex;
|
|
std::deque<FrameRequest> mFrameRequests[2] GUARDED_BY(mFrameMutex);
|
|
std::deque<FrameRequest>* mCurrentRequests PT_GUARDED_BY(mFrameMutex);
|
|
std::deque<FrameRequest>* mNextRequests PT_GUARDED_BY(mFrameMutex);
|
|
|
|
// Time this object was created
|
|
int64_t mTimeCreatedMs;
|
|
|
|
// usage statistics to collect
|
|
::android::sp<CameraUsageStats> mUsageStats;
|
|
};
|
|
|
|
} // namespace aidl::android::automotive::evs::implementation
|
|
|
|
#endif // CPP_EVS_MANAGER_AIDL_INCLUDE_HALCAMERA_H
|