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
|
/*
* Copyright (c) 2012 The WebRTC project authors. All Rights Reserved.
*
* Use of this source code is governed by a BSD-style license
* that can be found in the LICENSE file in the root of the source
* tree. An additional intellectual property rights grant can be found
* in the file PATENTS. All contributing project authors may
* be found in the AUTHORS file in the root of the source tree.
*/
#ifndef MODULES_VIDEO_CAPTURE_MAIN_SOURCE_WINDOWS_DEVICE_INFO_DS_H_
#define MODULES_VIDEO_CAPTURE_MAIN_SOURCE_WINDOWS_DEVICE_INFO_DS_H_
#include <dshow.h>
#include "modules/video_capture/device_info_impl.h"
#include "modules/video_capture/video_capture_impl.h"
namespace webrtc {
namespace videocapturemodule {
struct VideoCaptureCapabilityWindows : public VideoCaptureCapability {
uint32_t directShowCapabilityIndex;
bool supportFrameRateControl;
VideoCaptureCapabilityWindows() {
directShowCapabilityIndex = 0;
supportFrameRateControl = false;
}
};
class DeviceInfoDS : public DeviceInfoImpl {
public:
// Factory function.
static DeviceInfoDS* Create();
DeviceInfoDS();
~DeviceInfoDS() override;
int32_t Init() override;
uint32_t NumberOfDevices() override;
/*
* Returns the available capture devices.
*/
int32_t GetDeviceName(uint32_t deviceNumber,
char* deviceNameUTF8,
uint32_t deviceNameLength,
char* deviceUniqueIdUTF8,
uint32_t deviceUniqueIdUTF8Length,
char* productUniqueIdUTF8,
uint32_t productUniqueIdUTF8Length) override;
/*
* Display OS /capture device specific settings dialog
*/
int32_t DisplayCaptureSettingsDialogBox(const char* deviceUniqueIdUTF8,
const char* dialogTitleUTF8,
void* parentWindow,
uint32_t positionX,
uint32_t positionY) override;
// Windows specific
/* Gets a capture device filter
The user of this API is responsible for releasing the filter when it not
needed.
*/
IBaseFilter* GetDeviceFilter(const char* deviceUniqueIdUTF8,
char* productUniqueIdUTF8 = NULL,
uint32_t productUniqueIdUTF8Length = 0);
int32_t GetWindowsCapability(
int32_t capabilityIndex,
VideoCaptureCapabilityWindows& windowsCapability);
static void GetProductId(const char* devicePath,
char* productUniqueIdUTF8,
uint32_t productUniqueIdUTF8Length);
protected:
int32_t GetDeviceInfo(uint32_t deviceNumber,
char* deviceNameUTF8,
uint32_t deviceNameLength,
char* deviceUniqueIdUTF8,
uint32_t deviceUniqueIdUTF8Length,
char* productUniqueIdUTF8,
uint32_t productUniqueIdUTF8Length);
int32_t CreateCapabilityMap(const char* deviceUniqueIdUTF8) override
RTC_EXCLUSIVE_LOCKS_REQUIRED(_apiLock);
private:
ICreateDevEnum* _dsDevEnum;
IEnumMoniker* _dsMonikerDevEnum;
bool _CoUninitializeIsRequired;
std::vector<VideoCaptureCapabilityWindows> _captureCapabilitiesWindows;
};
} // namespace videocapturemodule
} // namespace webrtc
#endif // MODULES_VIDEO_CAPTURE_MAIN_SOURCE_WINDOWS_DEVICE_INFO_DS_H_
|
