1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2019, Google Inc.
*
* camera_device.h - libcamera Android Camera Device
*/
#ifndef __ANDROID_CAMERA_DEVICE_H__
#define __ANDROID_CAMERA_DEVICE_H__
#include <map>
#include <memory>
#include <tuple>
#include <vector>
#include <hardware/camera3.h>
#include <libcamera/buffer.h>
#include <libcamera/camera.h>
#include <libcamera/geometry.h>
#include <libcamera/request.h>
#include <libcamera/stream.h>
#include "libcamera/internal/log.h"
#include "libcamera/internal/message.h"
#include "jpeg/encoder.h"
class CameraMetadata;
struct CameraStream {
public:
CameraStream(libcamera::PixelFormat, libcamera::Size, unsigned int i,
Encoder *e = nullptr);
unsigned int index() const { return index_; }
Encoder *encoder() const { return encoder_.get(); }
libcamera::PixelFormat format;
libcamera::Size size;
private:
/*
* The index of the libcamera StreamConfiguration as added during
* configureStreams(). A single libcamera Stream may be used to deliver
* one or more streams to the Android framework.
*/
unsigned int index_;
std::unique_ptr<Encoder> encoder_;
};
class CameraDevice : protected libcamera::Loggable
{
public:
static std::shared_ptr<CameraDevice> create(unsigned int id,
const std::shared_ptr<libcamera::Camera> &cam);
~CameraDevice();
int initialize();
int open(const hw_module_t *hardwareModule);
void close();
unsigned int id() const { return id_; }
camera3_device_t *camera3Device() { return &camera3Device_; }
const libcamera::Camera *camera() const { return camera_.get(); }
int facing() const { return facing_; }
int orientation() const { return orientation_; }
void setCallbacks(const camera3_callback_ops_t *callbacks);
const camera_metadata_t *getStaticMetadata();
const camera_metadata_t *constructDefaultRequestSettings(int type);
int configureStreams(camera3_stream_configuration_t *stream_list);
int processCaptureRequest(camera3_capture_request_t *request);
void requestComplete(libcamera::Request *request);
protected:
std::string logPrefix() const override;
private:
CameraDevice(unsigned int id, const std::shared_ptr<libcamera::Camera> &camera);
struct Camera3RequestDescriptor {
Camera3RequestDescriptor(unsigned int frameNumber,
unsigned int numBuffers);
~Camera3RequestDescriptor();
uint32_t frameNumber;
uint32_t numBuffers;
camera3_stream_buffer_t *buffers;
std::vector<std::unique_ptr<libcamera::FrameBuffer>> frameBuffers;
};
struct Camera3StreamConfiguration {
libcamera::Size resolution;
int androidFormat;
};
int initializeStreamConfigurations();
std::vector<libcamera::Size>
getYUVResolutions(libcamera::CameraConfiguration *cameraConfig,
const libcamera::PixelFormat &pixelFormat,
const std::vector<libcamera::Size> &resolutions);
std::vector<libcamera::Size>
getRawResolutions(const libcamera::PixelFormat &pixelFormat);
std::tuple<uint32_t, uint32_t> calculateStaticMetadataSize();
libcamera::FrameBuffer *createFrameBuffer(const buffer_handle_t camera3buffer);
void notifyShutter(uint32_t frameNumber, uint64_t timestamp);
void notifyError(uint32_t frameNumber, camera3_stream_t *stream);
CameraMetadata *requestTemplatePreview();
libcamera::PixelFormat toPixelFormat(int format);
std::unique_ptr<CameraMetadata> getResultMetadata(int frame_number,
int64_t timestamp);
unsigned int id_;
camera3_device_t camera3Device_;
bool running_;
std::shared_ptr<libcamera::Camera> camera_;
std::unique_ptr<libcamera::CameraConfiguration> config_;
CameraMetadata *staticMetadata_;
std::map<unsigned int, const CameraMetadata *> requestTemplates_;
const camera3_callback_ops_t *callbacks_;
std::vector<Camera3StreamConfiguration> streamConfigurations_;
std::map<int, libcamera::PixelFormat> formatsMap_;
std::vector<CameraStream> streams_;
int facing_;
int orientation_;
unsigned int maxJpegBufferSize_;
};
#endif /* __ANDROID_CAMERA_DEVICE_H__ */
|
