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
|
// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef EXTENSIONS_BROWSER_API_WEBCAM_PRIVATE_V4L2_WEBCAM_H_
#define EXTENSIONS_BROWSER_API_WEBCAM_PRIVATE_V4L2_WEBCAM_H_
#include "extensions/browser/api/webcam_private/webcam.h"
#include <stdint.h>
#include "base/files/scoped_file.h"
namespace extensions {
class V4L2Webcam : public Webcam {
public:
V4L2Webcam(const std::string& device_id);
V4L2Webcam(const V4L2Webcam&) = delete;
V4L2Webcam& operator=(const V4L2Webcam&) = delete;
bool Open();
private:
~V4L2Webcam() override;
bool EnsureLogitechCommandsMapped();
bool EnsureAverCommandsMapped();
static bool SetWebcamParameter(int fd, uint32_t control_id, int value);
static bool GetWebcamParameter(int fd,
uint32_t control_id,
int* value,
int* min_value,
int* max_value);
// Webcam:
void GetPan(const GetPTZCompleteCallback& callback) override;
void GetTilt(const GetPTZCompleteCallback& callback) override;
void GetZoom(const GetPTZCompleteCallback& callback) override;
void GetFocus(const GetPTZCompleteCallback& callback) override;
void SetPan(int value,
int pan_speed,
const SetPTZCompleteCallback& callback) override;
void SetTilt(int value,
int tilt_speed,
const SetPTZCompleteCallback& callback) override;
void SetZoom(int value, const SetPTZCompleteCallback& callback) override;
void SetPanDirection(PanDirection direction,
int pan_speed,
const SetPTZCompleteCallback& callback) override;
void SetTiltDirection(TiltDirection direction,
int tilt_speed,
const SetPTZCompleteCallback& callback) override;
void Reset(bool pan,
bool tilt,
bool zoom,
const SetPTZCompleteCallback& callback) override;
void SetHome(const SetPTZCompleteCallback& callback) override;
void SetFocus(int value, const SetPTZCompleteCallback& callback) override;
void SetAutofocusState(AutofocusState state,
const SetPTZCompleteCallback& callback) override;
void RestoreCameraPreset(int preset_number,
const SetPTZCompleteCallback& callback) override;
void SetCameraPreset(int preset_number,
const SetPTZCompleteCallback& callback) override;
const std::string device_id_;
base::ScopedFD fd_;
};
} // namespace extensions
#endif // EXTENSIONS_BROWSER_API_WEBCAM_PRIVATE_V4L2_WEBCAM_H_
|
