blob: 3fcdb4b4d5f8d19218dc1c570e26b6508693a0a8 (
plain)
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
|
/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
* Copyright (C) 2018, Google Inc.
*
* media_device.h - Media device handler
*/
#ifndef __LIBCAMERA_MEDIA_DEVICE_H__
#define __LIBCAMERA_MEDIA_DEVICE_H__
#include <map>
#include <sstream>
#include <string>
#include <vector>
#include <linux/media.h>
#include "media_object.h"
namespace libcamera {
class MediaDevice
{
public:
MediaDevice(const std::string &devnode);
~MediaDevice();
bool acquire();
void release() { acquired_ = false; }
bool busy() const { return acquired_; }
int open();
void close();
int populate();
bool valid() const { return valid_; }
const std::string driver() const { return driver_; }
const std::string devnode() const { return devnode_; }
const std::vector<MediaEntity *> &entities() const { return entities_; }
MediaEntity *getEntityByName(const std::string &name);
private:
std::string driver_;
std::string devnode_;
int fd_;
bool valid_;
bool acquired_;
std::map<unsigned int, MediaObject *> objects_;
MediaObject *object(unsigned int id);
bool addObject(MediaObject *object);
void clear();
std::vector<MediaEntity *> entities_;
bool populateEntities(const struct media_v2_topology &topology);
bool populatePads(const struct media_v2_topology &topology);
bool populateLinks(const struct media_v2_topology &topology);
};
} /* namespace libcamera */
#endif /* __LIBCAMERA_MEDIA_DEVICE_H__ */
|
