157 lines
6.4 KiB
C++
157 lines
6.4 KiB
C++
/*
|
|
* Copyright (C) 2019 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_1_1_HALCAMERA_H_
|
|
#define CPP_EVS_MANAGER_1_1_HALCAMERA_H_
|
|
|
|
#include "stats/CameraUsageStats.h"
|
|
|
|
#include <android/hardware/automotive/evs/1.1/IEvsCamera.h>
|
|
#include <android/hardware/automotive/evs/1.1/IEvsCameraStream.h>
|
|
#include <android/hardware/automotive/evs/1.1/types.h>
|
|
#include <utils/Mutex.h>
|
|
#include <utils/SystemClock.h>
|
|
|
|
#include <deque>
|
|
#include <list>
|
|
#include <thread> // NOLINT
|
|
#include <unordered_map>
|
|
|
|
namespace android::automotive::evs::V1_1::implementation {
|
|
|
|
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 ::android::hardware::automotive::evs::V1_1::IEvsCameraStream {
|
|
public:
|
|
HalCamera(sp<hardware::automotive::evs::V1_1::IEvsCamera> hwCamera, std::string deviceId = "",
|
|
int32_t recordId = 0, hardware::camera::device::V3_2::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
|
|
sp<VirtualCamera> makeVirtualCamera();
|
|
bool ownVirtualCamera(sp<VirtualCamera> virtualCamera);
|
|
void disownVirtualCamera(sp<VirtualCamera> virtualCamera);
|
|
void disownVirtualCamera(const VirtualCamera* virtualCamera);
|
|
|
|
// Implementation details
|
|
sp<hardware::automotive::evs::V1_0::IEvsCamera> getHwCamera() { return mHwCamera; }
|
|
unsigned getClientCount() { return mClients.size(); }
|
|
std::string getId() { return mId; }
|
|
hardware::camera::device::V3_2::Stream& getStreamConfig() { return mStreamConfig; }
|
|
bool changeFramesInFlight(int delta);
|
|
bool changeFramesInFlight(
|
|
const hardware::hidl_vec<hardware::automotive::evs::V1_1::BufferDesc>& buffers,
|
|
int* delta);
|
|
void requestNewFrame(sp<VirtualCamera> virtualCamera, const int64_t timestamp);
|
|
|
|
hardware::Return<hardware::automotive::evs::V1_0::EvsResult> clientStreamStarting();
|
|
void clientStreamEnding(const VirtualCamera* client);
|
|
hardware::Return<void> doneWithFrame(const hardware::automotive::evs::V1_0::BufferDesc& buffer);
|
|
hardware::Return<void> doneWithFrame(const hardware::automotive::evs::V1_1::BufferDesc& buffer);
|
|
hardware::Return<hardware::automotive::evs::V1_0::EvsResult> setMaster(
|
|
sp<VirtualCamera> virtualCamera);
|
|
hardware::Return<hardware::automotive::evs::V1_0::EvsResult> forceMaster(
|
|
sp<VirtualCamera> virtualCamera);
|
|
hardware::Return<hardware::automotive::evs::V1_0::EvsResult> unsetMaster(
|
|
const VirtualCamera* virtualCamera);
|
|
hardware::Return<hardware::automotive::evs::V1_0::EvsResult> setParameter(
|
|
sp<VirtualCamera> virtualCamera, hardware::automotive::evs::V1_1::CameraParam id,
|
|
int32_t* value);
|
|
hardware::Return<hardware::automotive::evs::V1_0::EvsResult> getParameter(
|
|
hardware::automotive::evs::V1_1::CameraParam id, int32_t* value);
|
|
|
|
// Returns a snapshot of collected usage statistics
|
|
CameraUsageStatsRecord getStats() const;
|
|
|
|
// Returns active stream configuration
|
|
hardware::camera::device::V3_2::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(hardware::camera::device::V3_2::Stream configuration,
|
|
const char* indent = "");
|
|
|
|
// Methods from ::android::hardware::automotive::evs::V1_0::IEvsCameraStream follow.
|
|
hardware::Return<void> deliverFrame(
|
|
const hardware::automotive::evs::V1_0::BufferDesc& buffer) override;
|
|
|
|
// Methods from ::android::hardware::automotive::evs::V1_1::IEvsCameraStream follow.
|
|
hardware::Return<void> deliverFrame_1_1(
|
|
const hardware::hidl_vec<hardware::automotive::evs::V1_1::BufferDesc>& buffer) override;
|
|
hardware::Return<void> notify(
|
|
const hardware::automotive::evs::V1_1::EvsEventDesc& event) override;
|
|
|
|
private:
|
|
sp<hardware::automotive::evs::V1_1::IEvsCamera> mHwCamera;
|
|
std::list<wp<VirtualCamera>> mClients; // Weak pointers -> objects destruct if client dies
|
|
|
|
enum {
|
|
STOPPED,
|
|
RUNNING,
|
|
STOPPING,
|
|
} mStreamState = STOPPED;
|
|
|
|
struct FrameRecord {
|
|
uint32_t frameId;
|
|
uint32_t refCount;
|
|
explicit FrameRecord(uint32_t id) : frameId(id), refCount(0) {}
|
|
};
|
|
|
|
std::vector<FrameRecord> mFrames;
|
|
wp<VirtualCamera> mPrimaryClient = nullptr;
|
|
std::string mId;
|
|
hardware::camera::device::V3_2::Stream mStreamConfig;
|
|
|
|
struct FrameRequest {
|
|
wp<VirtualCamera> client = nullptr;
|
|
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 android::automotive::evs::V1_1::implementation
|
|
|
|
#endif // CPP_EVS_MANAGER_1_1_HALCAMERA_H_
|