来分析一个UVC的摄像头的枚举信息

Posted 2020-11-10 陌鉎こ城sHi

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使用到工具USBlyzer导出数据，但是会发现一些还有部分解析未完全。我们将借助UVCView.x86(https://files.cnblogs.com/files/libra13179/77772349UVCView.x86.rar)来进一步来分析。(懒人专用)

Connection Status	Device connected
Current Configuration	1
Speed	High (480 Mbit/s)
Device Address	4
Number Of Open Pipes	1

Device Descriptor USB2.0 UVC PC Camera

Offset	Field	Size	Value	Description
0	bLength	1	12h
1	bDescriptorType	1	01h	Device
2	bcdUSB	2	0200h	USB Spec 2.0
4	bDeviceClass	1	EFh	Miscellaneous
5	bDeviceSubClass	1	02h	Common Class
6	bDeviceProtocol	1	01h	Interface Association Descriptor
7	bMaxPacketSize0	1	40h	64 bytes
8	idVendor	2	05E3h	Genesys Logic, Inc.
10	idProduct	2	0510h
12	bcdDevice	2	0319h	3.19
14	iManufacturer	1	02h
15	iProduct	1	03h	"USB2.0 UVC PC Camera"
16	iSerialNumber	1	00h
17	bNumConfigurations	1	01h

Configuration Descriptor 1 Bus Powered, 200 mA

Offset	Field	Size	Value	Description
0	bLength	1	09h
1	bDescriptorType	1	02h	Configuration
2	wTotalLength	2	01A9h
4	bNumInterfaces	1	02h
5	bConfigurationValue	1	01h
6	iConfiguration	1	00h
7	bmAttributes	1	80h	Bus Powered
	4..0: Reserved		...00000
	5: Remote Wakeup		..0.....	No
	6: Self Powered		.0......	No, Bus Powered
	7: Reserved (set to one) (bus-powered for 1.0)		1.......
8	bMaxPower	1	64h	200 mA

Interface Association Descriptor Video Interface Collection

Offset	Field	Size	Value	Description
0	bLength	1	08h
1	bDescriptorType	1	0Bh	Interface Association
2	bFirstInterface	1	00h
3	bInterfaceCount	1	02h
4	bFunctionClass	1	0Eh	Video
5	bFunctionSubClass	1	03h	Video Interface Collection
6	bFunctionProtocol	1	00h
7	iFunction	1	01h

Interface Descriptor 0/0 Video, 1 Endpoint

Offset	Field	Size	Value	Description
0	bLength	1	09h
1	bDescriptorType	1	04h	Interface
2	bInterfaceNumber	1	00h
3	bAlternateSetting	1	00h
4	bNumEndpoints	1	01h
5	bInterfaceClass	1	0Eh	Video
6	bInterfaceSubClass	1	01h	Video Control
7	bInterfaceProtocol	1	00h
8	iInterface	1	01h

Video Control Interface Header Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	0Dh
1	bDescriptorType	1	24h	Video Control Interface Header
2		11	01 00 01 69 00 00 87 93 03 01 01

          ===>Class-Specific Video Control Interface Header Descriptor<===
bLength:                           0x0D
bDescriptorType:                   0x24
bDescriptorSubtype:                0x01
bcdVDC:                          0x0100
wTotalLength:                    0x0069  -> Validated
dwClockFrequency:            0x03938700 = (60000000) Hz
bInCollection:                     0x01
baInterfaceNr[1]:                  0x01

View Code

Video Control Output Terminal Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	09h
1	bDescriptorType	1	24h	Video Control Output Terminal
2		7	03 04 01 01 00 02 00

          ===>Video Control Output Terminal Descriptor<===
bLength:                           0x09
bDescriptorType:                   0x24
bDescriptorSubtype:                0x03
bTerminalID:                       0x04
wTerminalType:                   0x0101 = (TT_STREAMING)
bAssocTerminal:                    0x00
bSourceID:                         0x02
iTerminal:                         0x00

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Video Control Extension Unit Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	1Bh
1	bDescriptorType	1	24h	Video Control Extension Unit
2		25	06 02 0B 36 5D 5E 5F E4 81 45 9B 0B 37 46 69 BA 05 D4 10 01 05 02 FF 00 00

          ===>Video Control Extension Unit Descriptor<===
bLength:                           0x1B
bDescriptorType:                   0x24
bDescriptorSubtype:                0x06
bUnitID:                           0x02
guidExtensionCode:                 {5E5D360B-E45F-4581-9B0B-374669BA05D4}
bNumControls:                      0x10
bNrInPins:                         0x01
===>List of Connected Units and Terminal ID\'s
baSourceID[1]:                     0x05
bControlSize:                      0x02
bmControls : 0xFF 0x00 
     D00 = 1  yes -  Vendor-Specific (Optional)
     D01 = 1  yes -  Vendor-Specific (Optional)
     D02 = 1  yes -  Vendor-Specific (Optional)
     D03 = 1  yes -  Vendor-Specific (Optional)
     D04 = 1  yes -  Vendor-Specific (Optional)
     D05 = 1  yes -  Vendor-Specific (Optional)
     D06 = 1  yes -  Vendor-Specific (Optional)
     D07 = 1  yes -  Vendor-Specific (Optional)
     D08 = 0   no -  Vendor-Specific (Optional)
     D09 = 0   no -  Vendor-Specific (Optional)
     D10 = 0   no -  Vendor-Specific (Optional)
     D11 = 0   no -  Vendor-Specific (Optional)
     D12 = 0   no -  Vendor-Specific (Optional)
     D13 = 0   no -  Vendor-Specific (Optional)
     D14 = 0   no -  Vendor-Specific (Optional)
     D15 = 0   no -  Vendor-Specific (Optional)
iExtension:                        0x00

View Code

Video Control Extension Unit Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	1Bh
1	bDescriptorType	1	24h	Video Control Extension Unit
2		25	06 05 03 DF DA EC E3 8F 27 4D 89 3B A1 8D 25 AE EE 09 10 01 03 02 FF 03 00

          ===>Video Control Extension Unit Descriptor<===
bLength:                           0x1B
bDescriptorType:                   0x24
bDescriptorSubtype:                0x06
bUnitID:                           0x05
guidExtensionCode:                 {ECDADF03-8FE3-4D27-893B-A18D25AEEE09}
bNumControls:                      0x10
bNrInPins:                         0x01
===>List of Connected Units and Terminal ID\'s
baSourceID[1]:                     0x03
bControlSize:                      0x02
bmControls : 0xFF 0x03 
     D00 = 1  yes -  Vendor-Specific (Optional)
     D01 = 1  yes -  Vendor-Specific (Optional)
     D02 = 1  yes -  Vendor-Specific (Optional)
     D03 = 1  yes -  Vendor-Specific (Optional)
     D04 = 1  yes -  Vendor-Specific (Optional)
     D05 = 1  yes -  Vendor-Specific (Optional)
     D06 = 1  yes -  Vendor-Specific (Optional)
     D07 = 1  yes -  Vendor-Specific (Optional)
     D08 = 1  yes -  Vendor-Specific (Optional)
     D09 = 1  yes -  Vendor-Specific (Optional)
     D10 = 0   no -  Vendor-Specific (Optional)
     D11 = 0   no -  Vendor-Specific (Optional)
     D12 = 0   no -  Vendor-Specific (Optional)
     D13 = 0   no -  Vendor-Specific (Optional)
     D14 = 0   no -  Vendor-Specific (Optional)
     D15 = 0   no -  Vendor-Specific (Optional)
iExtension:                        0x00

View Code

Video Control Input Terminal Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	12h
1	bDescriptorType	1	24h	Video Control Input Terminal
2		16	02 01 01 02 00 00 00 00 00 00 00 00 03 00 00 00

          ===>Video Control Input Terminal Descriptor<===
bLength:                           0x12
bDescriptorType:                   0x24
bDescriptorSubtype:                0x02
bTerminalID:                       0x01
wTerminalType:                   0x0201 = (ITT_CAMERA)
bAssocTerminal:                    0x00
iTerminal:                         0x00
===>Camera Input Terminal Data
wObjectiveFocalLengthMin:        0x0000
wObjectiveFocalLengthMax:        0x0000
wOcularFocalLength:              0x0000
bControlSize:                      0x03
bmControls : 0x00 0x00 0x00 
     D00 = 0   no -  Scanning Mode
     D01 = 0   no -  Auto-Exposure Mode
     D02 = 0   no -  Auto-Exposure Priority
     D03 = 0   no -  Exposure Time (Absolute)
     D04 = 0   no -  Exposure Time (Relative)
     D05 = 0   no -  Focus (Absolute)
     D06 = 0   no -  Focus (Relative)
     D07 = 0   no -  Iris (Absolute)
     D08 = 0   no -  Iris (Relative)
     D09 = 0   no -  Zoom (Absolute)
     D10 = 0   no -  Zoom (Relative)
     D11 = 0   no -  Pan (Absolute)
     D12 = 0   no -  Pan (Relative)
     D13 = 0   no -  Roll (Absolute)
     D14 = 0   no -  Roll (Relative)
     D15 = 0   no -  Tilt (Absolute)
     D16 = 0   no -  Tilt (Relative)
     D17 = 0   no -  Focus Auto
     D18 = 0   no -  Reserved
     D19 = 0   no -  Reserved
     D20 = 0   no -  Reserved
     D21 = 0   no -  Reserved
     D22 = 0   no -  Reserved
     D23 = 0   no -  Reserved

View Code

Video Control Processing Unit Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	0Bh
1	bDescriptorType	1	24h	Video Control Processing Unit
2		9	05 03 01 00 00 02 7F 17 00

          ===>Video Control Processing Unit Descriptor<===
bLength:                           0x0B
bDescriptorType:                   0x24
bDescriptorSubtype:                0x05
bUnitID:                           0x03
bSourceID:                         0x01
wMaxMultiplier:                  0x0000
bControlSize:                      0x02
bmControls : 0x7F 0x17 
     D00 = 1  yes -  Brightness
     D01 = 1  yes -  Contrast
     D02 = 1  yes -  Hue
     D03 = 1  yes -  Saturation
     D04 = 1  yes -  Sharpness
     D05 = 1  yes -  Gamma
     D06 = 1  yes -  White Balance Temperature
     D07 = 0   no -  White Balance Component
     D08 = 1  yes -  Backlight Compensation
     D09 = 1  yes -  Gain
     D10 = 1  yes -  Power Line Frequency
     D11 = 0   no -  Hue, Auto
     D12 = 1  yes -  White Balance Temperature, Auto
     D13 = 0   no -  White Balance Component, Auto
     D14 = 0   no -  Digital Multiplier
     D15 = 0   no -  Digital Multiplier Limit
iProcessing:                       0x00

View Code

Endpoint Descriptor 83 3 In, Interrupt, 4 ms

Offset	Field	Size	Value	Description
0	bLength	1	07h
1	bDescriptorType	1	05h	Endpoint
2	bEndpointAddress	1	83h	3 In
3	bmAttributes	1	03h	Interrupt
	1..0: Transfer Type		......11	Interrupt
	7..2: Reserved		000000..
4	wMaxPacketSize	2	0017h	23 bytes
6	bInterval	1	06h	4 ms

Video Control Interrupt Endpoint Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	05h
1	bDescriptorType	1	25h	Video Control Interrupt Endpoint
2		3	03 17 00

          ===>Class-specific VC Interrupt Endpoint Descriptor<===
bLength:                           0x05 
bDescriptorType:                   0x25
bDescriptorSubType:                0x03
wMaxTransferSize:                0x0017 = (23) Bytes

View Code

Interface Descriptor 1/0 Video, 0 Endpoints

Offset	Field	Size	Value	Description
0	bLength	1	09h
1	bDescriptorType	1	04h	Interface
2	bInterfaceNumber	1	01h
3	bAlternateSetting	1	00h
4	bNumEndpoints	1	00h
5	bInterfaceClass	1	0Eh	Video
6	bInterfaceSubClass	1	02h	Video Streaming
7	bInterfaceProtocol	1	00h
8	iInterface	1	00h

Video Streaming Interface Input Header Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	0Eh
1	bDescriptorType	1	24h	Video Streaming Interface Input Header
2		12	01 01 01 01 81 00 04 02 01 01 01 00

          ===>Video Class-Specific VS Video Input Header Descriptor<===
bLength:                           0x0E
bDescriptorType:                   0x24
bDescriptorSubtype:                0x01
bNumFormats:                       0x01
wTotalLength:                    0x0101  -> Validated
bEndpointAddress:                  0x81  -> Direction: IN - EndpointID: 1
bmInfo:                            0x00  -> Dynamic Format Change not Supported
bTerminalLink:                     0x04
bStillCaptureMethod:               0x02  -> Still Capture Method 2
bTriggerSupport:                   0x01  -> Hardware Triggering Support
bTriggerUsage:                     0x01  -> Host will notify client application of button event
bControlSize:                      0x01
Video Payload Format 1             0x00 
     D00 = 0   no -  Key Frame Rate
     D01 = 0   no -  P Frame Rate
     D02 = 0   no -  Compression Quality
     D03 = 0   no -  Compression Window Size
     D04 = 0   no -  Generate Key Frame
     D05 = 0   no -  Update Frame Segment
     D06 = 0   no -  Reserved
     D07 = 0   no -  Reserved

View Code

Video Streaming Uncompressed Video Format Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	1Bh
1	bDescriptorType	1	24h	Video Streaming Uncompressed Video Format
2		25	04 01 06 59 55 59 32 00 00 10 00 80 00 00 AA 00 38 9B 71 10 01 00 00 00 00

          ===>Video Streaming Uncompressed Format Type Descriptor<===
bLength:                           0x1B
bDescriptorType:                   0x24
bDescriptorSubtype:                0x04
bFormatIndex:                      0x01
bNumFrameDescriptors:              0x06
guidFormat:                        {32595559-0000-0010-8000-00AA00389B71} = YUY2 Format
bBitsPerPixel:                     0x10
bDefaultFrameIndex:                0x01
bAspectRatioX:                     0x00
bAspectRatioY:                     0x00
bmInterlaceFlags:                  0x00
     D0    = 0x00 Interlaced stream or variable: No
     D1    = 0x00 Fields per frame: 2 fields
     D2    = 0x00 Field 1 first: No
     D3    = 0x00 Reserved
     D4..5 = 0x00 Field patterns  -> Field 1 only
     D6..7 = 0x00 Display Mode  -> Bob only
bCopyProtect:                      0x00  -> Duplication Unrestricted

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补充一下关于Layout of a GUID Data Structure

Therefore, for a GUID defined as {32595559-0000-0010-8000-00AA00389B71}, as described
in the table above, the little-endian byte-stream representation would be:
0x59, 0x55, 0x59, 0x32, 0x00, 0x00, 0x10, 0x00, 0x80, 0x00, 0x00, 0xAA, 0x00, 0x38, 0x9B, 0x71

Video Streaming Uncompressed Video Frame Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	1Eh
1	bDescriptorType	1	24h	Video Streaming Uncompressed Video Frame
2		28	05 01 00 80 02 E0 01 00 60 EA 00 00 60 EA 00 00 60 09 00 80 1A 06 00 01 80 1A 06 00

          ===>Video Streaming Uncompressed Frame Type Descriptor<===
bLength:                           0x1E
bDescriptorType:                   0x24
bDescriptorSubtype:                0x05
bFrameIndex:                       0x01
bmCapabilities:                    0x00
wWidth:                          0x0280
wHeight:                         0x01E0
dwMinBitRate:                0x00EA6000
dwMaxBitRate:                0x00EA6000
dwMaxVideoFrameBufferSize:   0x00096000
dwDefaultFrameInterval:      0x00061A80
bFrameIntervalType:                0x01
===>Additional Discrete Frame Type Data
dwFrameInterval[1]:          0x00061A80

View Code

Video Streaming Uncompressed Video Frame Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	1Eh
1	bDescriptorType	1	24h	Video Streaming Uncompressed Video Frame
2		28	05 02 00 A0 00 78 00 00 A6 0E 00 00 A6 0E 00 00 96 00 00 80 1A 06 00 01 80 1A 06 00

          ===>Video Streaming Uncompressed Frame Type Descriptor<===
bLength:                           0x1E
bDescriptorType:                   0x24
bDescriptorSubtype:                0x05
bFrameIndex:                       0x02
bmCapabilities:                    0x00
wWidth:                          0x00A0
wHeight:                         0x0078
dwMinBitRate:                0x000EA600
dwMaxBitRate:                0x000EA600
dwMaxVideoFrameBufferSize:   0x00009600
dwDefaultFrameInterval:      0x00061A80
bFrameIntervalType:                0x01
===>Additional Discrete Frame Type Data
dwFrameInterval[1]:          0x00061A80

View Code

Video Streaming Uncompressed Video Frame Descriptor

Offset	Field	Size	Value	Description
0	bLength	1	1Eh
1	bDescriptorType	1	24h	Video Streaming Uncompressed Video Frame
2		28	05 03 00 B0 00 90 00 00 56 13 00 00 56 13 00 00 C6 00 00 80 1A 06 00 01 80 1A 06 00

          ===>Video Streaming Uncompressed Frame Type Descriptor<===
bLength:                           0x1E
bDescriptorType:                   0x24
bDescriptorSubtype:                0x05
bFrameIndex:                       0x03
bmCapabilities:                    0x00
wWidth:                          0x00B0
wHeight:                         0x0090
dwMinBitRate:                0x00135600
dwMaxBitRate:                0x00135600
dwMaxVideoFrameBufferSize:   0x0000C600
dwDefaultFrameInterval:      0x00061A80
bFrameIntervalType:                0x01
===>Additional Discrete Frame Type Data
dwFrameInterval[1]:          0x00061A80

View Code

Video Streaming Uncompressed Video Frame Descriptor

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Offset	Field	Size	Value	Description
0	bLength	1	1Eh
1	bDescriptorType	1	24h	Video Streaming Uncompressed Video Frame
2