libcamera v0.5.1 Supporting cameras in Linux since 2019 |

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camera_manager.h
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1/* SPDX-License-Identifier: LGPL-2.1-or-later */
2/*
3 * Copyright (C) 2023, Ideas on Board Oy.
4 *
5 * Camera manager private data
6 */
7
8#pragma once
9
10#include <libcamera/camera_manager.h>
11
12#include <memory>
13#include <sys/types.h>
14#include <vector>
15
16#include <libcamera/base/class.h>
17#include <libcamera/base/mutex.h>
18#include <libcamera/base/thread.h>
19#include <libcamera/base/thread_annotations.h>
20
21#include "libcamera/internal/process.h"
22
23 namespace libcamera {
24
25 class Camera;
26 class DeviceEnumerator;
27 class IPAManager;
28 class PipelineHandlerFactoryBase;
29
30 class CameraManager::Private : public Extensible::Private, public Thread
31{
32 LIBCAMERA_DECLARE_PUBLIC(CameraManager)
33
34 public:
35 Private();
36
37 int start();
38 void addCamera(std::shared_ptr<Camera> camera) LIBCAMERA_TSA_EXCLUDES(mutex_);
39 void removeCamera(std::shared_ptr<Camera> camera) LIBCAMERA_TSA_EXCLUDES(mutex_);
40
41 IPAManager *ipaManager() const { return ipaManager_.get(); }
42
43 protected:
44 void run() override;
45
46 private:
47 int init();
48 void createPipelineHandlers();
49 void pipelineFactoryMatch(const PipelineHandlerFactoryBase *factory);
50 void cleanup() LIBCAMERA_TSA_EXCLUDES(mutex_);
51
52 /*
53 * This mutex protects
54 *
55 * - initialized_ and status_ during initialization
56 * - cameras_ after initialization
57 */
58 mutable Mutex mutex_;
59 std::vector<std::shared_ptr<Camera>> cameras_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
60
61 ConditionVariable cv_;
62 bool initialized_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
63 int status_ LIBCAMERA_TSA_GUARDED_BY(mutex_);
64
65 std::unique_ptr<DeviceEnumerator> enumerator_;
66
67 std::unique_ptr<IPAManager> ipaManager_;
68 ProcessManager processManager_;
69};
70
71} /* namespace libcamera */
camera_manager.h
The camera manager.
class.h
Utilities to help constructing class interfaces.
LIBCAMERA_DECLARE_PUBLIC
#define LIBCAMERA_DECLARE_PUBLIC(klass)
Declare public data for a private class.
Definition class.h:57
libcamera::Camera
Camera device.
Definition camera.h:115
libcamera::DeviceEnumerator
Enumerate, store and search media devices.
Definition device_enumerator.h:35
libcamera::Extensible::Private
Base class for private data managed through a d-pointer.
Definition class.h:65
libcamera::IPAManager
Manager for IPA modules.
Definition ipa_manager.h:29
libcamera::PipelineHandlerFactoryBase
Base class for pipeline handler factories.
Definition pipeline_handler.h:106
libcamera::Thread
A thread of execution.
Definition thread.h:31
mutex.h
Mutex classes with clang thread safety annotation.
libcamera
Top-level libcamera namespace.
Definition backtrace.h:17
process.h
Process object.
thread.h
Thread support.