* uvcvideo: IR camera lights only every second frame
@ 2018-10-30 14:36 Jiri Slaby
2018-10-30 15:48 ` Kieran Bingham
0 siblings, 1 reply; 4+ messages in thread
From: Jiri Slaby @ 2018-10-30 14:36 UTC (permalink / raw)
To: laurent.pinchart, linux-media
Hi,
I have a Dell Lattitude 7280 with two webcams. The standard one works
fine (/dev/video0). The other one is an IR camera (/dev/video1). The
camera proper works fine and produces 340x374 frames. But there is an IR
led supposed to light the object. The video is 30fps, but the LED seems
to emit light only on half of the frames, i.e. on every second frame (15
fps). This makes the video blink a lot. The two consecutive frames look
like:
https://www.fi.muni.cz/~xslaby/sklad/mpv-shot0002.jpg
https://www.fi.muni.cz/~xslaby/sklad/mpv-shot0003.jpg
Do you have any ideas what to check/test?
$ v4l2-ctl --all -d /dev/video2
Driver Info (not using libv4l2):
Driver name : uvcvideo
Card type : Integrated_Webcam_HD: Integrate
Bus info : usb-0000:00:14.0-5
Driver version: 4.18.15
Capabilities : 0x84A00001
Video Capture
Metadata Capture
Streaming
Extended Pix Format
Device Capabilities
Device Caps : 0x04200001
Video Capture
Streaming
Extended Pix Format
Priority: 2
Video input : 0 (Camera 11: ok)
Format Video Capture:
Width/Height : 340/374
Pixel Format : 'YUYV'
Field : None
Bytes per Line : 680
Size Image : 254320
Colorspace : sRGB
Transfer Function : Default (maps to sRGB)
YCbCr/HSV Encoding: Default (maps to ITU-R 601)
Quantization : Default (maps to Limited Range)
Flags :
Crop Capability Video Capture:
Bounds : Left 0, Top 0, Width 340, Height 374
Default : Left 0, Top 0, Width 340, Height 374
Pixel Aspect: 1/1
Selection: crop_default, Left 0, Top 0, Width 340, Height 374
Selection: crop_bounds, Left 0, Top 0, Width 340, Height 374
Streaming Parameters Video Capture:
Capabilities : timeperframe
Frames per second: 30.000 (30/1)
Read buffers : 0
$ lsusb -vs 1:3
Bus 001 Device 003: ID 0bda:5691 Realtek Semiconductor Corp.
Device Descriptor:
bLength 18
bDescriptorType 1
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
idVendor 0x0bda Realtek Semiconductor Corp.
idProduct 0x5691
bcdDevice 60.12
iManufacturer 3 CNFGE16N5214300025C2
iProduct 1 Integrated_Webcam_HD
iSerial 2 0001
bNumConfigurations 1
Configuration Descriptor:
bLength 9
bDescriptorType 2
wTotalLength 1041
bNumInterfaces 4
bConfigurationValue 1
iConfiguration 4 USB Camera
bmAttributes 0x80
(Bus Powered)
MaxPower 500mA
** UNRECOGNIZED: 28 ff 42 49 53 54 00 01 06 06 10 00 00 00 00 00 01
07 f4 01 02 08 f4 01 03 09 f4 01 04 0a f4 01 05 0b f4 01 06 0c e8 03
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 0
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 5 Integrated Webcam
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 0
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 5 Integrated Webcam
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 107
dwClockFrequency 15.000000MHz
bInCollection 1
baInterfaceNr( 0) 1
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 1
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x0000000e
Auto-Exposure Mode
Auto-Exposure Priority
Exposure Time (Absolute)
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 2
bSourceID 1
wMaxMultiplier 0
bControlSize 2
bmControls 0x0000177f
Brightness
Contrast
Hue
Saturation
Sharpness
Gamma
White Balance Temperature
Backlight Compensation
Gain
Power Line Frequency
White Balance Temperature, Auto
iProcessing 0
bmVideoStandards 0x09
None
SECAM - 625/50
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 3
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 4
iTerminal 0
VideoControl Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 4
guidExtensionCode {1229a78c-47b4-4094-b0ce-db07386fb938}
bNumControl 2
bNrPins 1
baSourceID( 0) 7
bControlSize 2
bmControls( 0) 0x00
bmControls( 1) 0x06
iExtension 0
VideoControl Interface Descriptor:
bLength 29
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 7
guidExtensionCode {0fb885c3-68c2-4547-90f7-8f47579d95fc}
bNumControl 0
bNrPins 1
baSourceID( 0) 2
bControlSize 4
bmControls( 0) 0x0f
bmControls( 1) 0x00
bmControls( 2) 0x00
bmControls( 3) 0x00
iExtension 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x83 EP 3 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 6
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
VideoStreaming Interface Descriptor:
bLength 15
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 2
wTotalLength 395
bEndPointAddress 129
bmInfo 0
bTerminalLink 3
bStillCaptureMethod 1
bTriggerSupport 1
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 0
bmaControls( 1) 0
VideoStreaming Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 6 (FORMAT_MJPEG)
bFormatIndex 1
bNumFrameDescriptors 5
bFlags 1
Fixed-size samples: Yes
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 1 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 1
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 480
dwMinBitRate 147456000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 2
bmCapabilities 0x01
Still image supported
wWidth 1280
wHeight 720
dwMinBitRate 442368000
dwMaxBitRate 442368000
dwMaxVideoFrameBufferSize 1843200
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 3
bmCapabilities 0x01
Still image supported
wWidth 960
wHeight 540
dwMinBitRate 248832000
dwMaxBitRate 248832000
dwMaxVideoFrameBufferSize 1036800
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 4
bmCapabilities 0x01
Still image supported
wWidth 848
wHeight 480
dwMinBitRate 195379200
dwMaxBitRate 195379200
dwMaxVideoFrameBufferSize 814080
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 7 (FRAME_MJPEG)
bFrameIndex 5
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 360
dwMinBitRate 110592000
dwMaxBitRate 110592000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 2
bNumFrameDescriptors 6
guidFormat
{32595559-0000-0010-8000-00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 2 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 480
dwMinBitRate 147456000
dwMaxBitRate 147456000
dwMaxVideoFrameBufferSize 614400
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 2
bmCapabilities 0x01
Still image supported
wWidth 640
wHeight 360
dwMinBitRate 110592000
dwMaxBitRate 110592000
dwMaxVideoFrameBufferSize 460800
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 3
bmCapabilities 0x01
Still image supported
wWidth 424
wHeight 240
dwMinBitRate 48844800
dwMaxBitRate 48844800
dwMaxVideoFrameBufferSize 203520
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 4
bmCapabilities 0x01
Still image supported
wWidth 320
wHeight 240
dwMinBitRate 36864000
dwMaxBitRate 36864000
dwMaxVideoFrameBufferSize 153600
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 5
bmCapabilities 0x01
Still image supported
wWidth 320
wHeight 180
dwMinBitRate 27648000
dwMaxBitRate 27648000
dwMaxVideoFrameBufferSize 115200
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 6
bmCapabilities 0x01
Still image supported
wWidth 160
wHeight 120
dwMinBitRate 9216000
dwMaxBitRate 9216000
dwMaxVideoFrameBufferSize 38400
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0080 1x 128 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0b00 2x 768 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0c00 2x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 6
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x13aa 3x 938 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 1
bAlternateSetting 7
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x81 EP 1 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1400 3x 1024 bytes
bInterval 1
Interface Association:
bLength 8
bDescriptorType 11
bFirstInterface 2
bInterfaceCount 2
bFunctionClass 14 Video
bFunctionSubClass 3 Video Interface Collection
bFunctionProtocol 0
iFunction 6 Integrated Webcam
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 2
bAlternateSetting 0
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 1 Video Control
bInterfaceProtocol 0
iInterface 6 Integrated Webcam
VideoControl Interface Descriptor:
bLength 13
bDescriptorType 36
bDescriptorSubtype 1 (HEADER)
bcdUVC 1.00
wTotalLength 103
dwClockFrequency 15.000000MHz
bInCollection 1
baInterfaceNr( 0) 3
VideoControl Interface Descriptor:
bLength 18
bDescriptorType 36
bDescriptorSubtype 2 (INPUT_TERMINAL)
bTerminalID 11
wTerminalType 0x0201 Camera Sensor
bAssocTerminal 0
iTerminal 0
wObjectiveFocalLengthMin 0
wObjectiveFocalLengthMax 0
wOcularFocalLength 0
bControlSize 3
bmControls 0x00000000
VideoControl Interface Descriptor:
bLength 11
bDescriptorType 36
bDescriptorSubtype 5 (PROCESSING_UNIT)
Warning: Descriptor too short
bUnitID 9
bSourceID 11
wMaxMultiplier 0
bControlSize 2
bmControls 0x00000000
iProcessing 0
bmVideoStandards 0x09
None
SECAM - 625/50
VideoControl Interface Descriptor:
bLength 9
bDescriptorType 36
bDescriptorSubtype 3 (OUTPUT_TERMINAL)
bTerminalID 8
wTerminalType 0x0101 USB Streaming
bAssocTerminal 0
bSourceID 10
iTerminal 0
VideoControl Interface Descriptor:
bLength 25
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 12
guidExtensionCode {45b5da73-23c1-4a3d-a368-610f078c4397}
bNumControl 0
bNrPins 1
baSourceID( 0) 9
bControlSize 0
iExtension 0
VideoControl Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 6 (EXTENSION_UNIT)
bUnitID 10
guidExtensionCode {1229a78c-47b4-4094-b0ce-db07386fb938}
bNumControl 2
bNrPins 1
baSourceID( 0) 12
bControlSize 2
bmControls( 0) 0x00
bmControls( 1) 0x06
iExtension 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x85 EP 5 IN
bmAttributes 3
Transfer Type Interrupt
Synch Type None
Usage Type Data
wMaxPacketSize 0x0010 1x 16 bytes
bInterval 6
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 0
bNumEndpoints 0
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
VideoStreaming Interface Descriptor:
bLength 14
bDescriptorType 36
bDescriptorSubtype 1 (INPUT_HEADER)
bNumFormats 1
wTotalLength 87
bEndPointAddress 130
bmInfo 0
bTerminalLink 8
bStillCaptureMethod 2
bTriggerSupport 1
bTriggerUsage 0
bControlSize 1
bmaControls( 0) 0
VideoStreaming Interface Descriptor:
bLength 27
bDescriptorType 36
bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
bFormatIndex 1
bNumFrameDescriptors 1
guidFormat
{32595559-0000-0010-8000-00aa00389b71}
bBitsPerPixel 16
bDefaultFrameIndex 1
bAspectRatioX 0
bAspectRatioY 0
bmInterlaceFlags 0x00
Interlaced stream or variable: No
Fields per frame: 2 fields
Field 1 first: No
Field pattern: Field 1 only
bCopyProtect 0
VideoStreaming Interface Descriptor:
bLength 30
bDescriptorType 36
bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
bFrameIndex 1
bmCapabilities 0x00
Still image unsupported
wWidth 340
wHeight 374
dwMinBitRate 61036800
dwMaxBitRate 61036800
dwMaxVideoFrameBufferSize 254320
dwDefaultFrameInterval 333333
bFrameIntervalType 1
dwFrameInterval( 0) 333333
VideoStreaming Interface Descriptor:
bLength 10
bDescriptorType 36
bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
bEndpointAddress 0
bNumImageSizePatterns 1
wWidth( 0) 340
wHeight( 0) 374
bNumCompressionPatterns 0
VideoStreaming Interface Descriptor:
bLength 6
bDescriptorType 36
bDescriptorSubtype 13 (COLORFORMAT)
bColorPrimaries 1 (BT.709,sRGB)
bTransferCharacteristics 1 (BT.709)
bMatrixCoefficients 4 (SMPTE 170M (BT.601))
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 1
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0080 1x 128 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 2
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0200 1x 512 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 3
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0400 1x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 4
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0b00 2x 768 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 5
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x0c00 2x 1024 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 6
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x13aa 3x 938 bytes
bInterval 1
Interface Descriptor:
bLength 9
bDescriptorType 4
bInterfaceNumber 3
bAlternateSetting 7
bNumEndpoints 1
bInterfaceClass 14 Video
bInterfaceSubClass 2 Video Streaming
bInterfaceProtocol 0
iInterface 0
Endpoint Descriptor:
bLength 7
bDescriptorType 5
bEndpointAddress 0x82 EP 2 IN
bmAttributes 5
Transfer Type Isochronous
Synch Type Asynchronous
Usage Type Data
wMaxPacketSize 0x1400 3x 1024 bytes
bInterval 1
Device Qualifier (for other device speed):
bLength 10
bDescriptorType 6
bcdUSB 2.00
bDeviceClass 239 Miscellaneous Device
bDeviceSubClass 2
bDeviceProtocol 1 Interface Association
bMaxPacketSize0 64
bNumConfigurations 1
Device Status: 0x0000
(Bus Powered)
thanks,
--
js
suse labs
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: uvcvideo: IR camera lights only every second frame
2018-10-30 14:36 uvcvideo: IR camera lights only every second frame Jiri Slaby
@ 2018-10-30 15:48 ` Kieran Bingham
2018-10-30 18:38 ` Laurent Pinchart
2018-11-01 9:36 ` Ricardo Ribalda Delgado
0 siblings, 2 replies; 4+ messages in thread
From: Kieran Bingham @ 2018-10-30 15:48 UTC (permalink / raw)
To: Jiri Slaby, laurent.pinchart, linux-media
Hi Jiri,
On 30/10/2018 14:36, Jiri Slaby wrote:
> Hi,
>
> I have a Dell Lattitude 7280 with two webcams. The standard one works
> fine (/dev/video0). The other one is an IR camera (/dev/video1). The
> camera proper works fine and produces 340x374 frames. But there is an IR
> led supposed to light the object. The video is 30fps, but the LED seems
> to emit light only on half of the frames, i.e. on every second frame (15
> fps). This makes the video blink a lot. The two consecutive frames look
> like:
> https://www.fi.muni.cz/~xslaby/sklad/mpv-shot0002.jpg
> https://www.fi.muni.cz/~xslaby/sklad/mpv-shot0003.jpg
>
> Do you have any ideas what to check/test?
I have an HP Spectre with IR camera, and it also 'flashes' alternate frames.
I assumed this was something to do with controlling the lighting for
face recognition some how.
I'm fairly sure we don't control the 'IR flash' from the UVC.
I wonder if there is a control parameter for the IR led in the
extension-units?
--
Regards
Kieran
> $ v4l2-ctl --all -d /dev/video2
> Driver Info (not using libv4l2):
> Driver name : uvcvideo
> Card type : Integrated_Webcam_HD: Integrate
> Bus info : usb-0000:00:14.0-5
> Driver version: 4.18.15
> Capabilities : 0x84A00001
> Video Capture
> Metadata Capture
> Streaming
> Extended Pix Format
> Device Capabilities
> Device Caps : 0x04200001
> Video Capture
> Streaming
> Extended Pix Format
> Priority: 2
> Video input : 0 (Camera 11: ok)
> Format Video Capture:
> Width/Height : 340/374
> Pixel Format : 'YUYV'
> Field : None
> Bytes per Line : 680
> Size Image : 254320
> Colorspace : sRGB
> Transfer Function : Default (maps to sRGB)
> YCbCr/HSV Encoding: Default (maps to ITU-R 601)
> Quantization : Default (maps to Limited Range)
> Flags :
> Crop Capability Video Capture:
> Bounds : Left 0, Top 0, Width 340, Height 374
> Default : Left 0, Top 0, Width 340, Height 374
> Pixel Aspect: 1/1
> Selection: crop_default, Left 0, Top 0, Width 340, Height 374
> Selection: crop_bounds, Left 0, Top 0, Width 340, Height 374
> Streaming Parameters Video Capture:
> Capabilities : timeperframe
> Frames per second: 30.000 (30/1)
> Read buffers : 0
>
>
>
>
>
> $ lsusb -vs 1:3
> Bus 001 Device 003: ID 0bda:5691 Realtek Semiconductor Corp.
> Device Descriptor:
> bLength 18
> bDescriptorType 1
> bcdUSB 2.00
> bDeviceClass 239 Miscellaneous Device
> bDeviceSubClass 2
> bDeviceProtocol 1 Interface Association
> bMaxPacketSize0 64
> idVendor 0x0bda Realtek Semiconductor Corp.
> idProduct 0x5691
> bcdDevice 60.12
> iManufacturer 3 CNFGE16N5214300025C2
> iProduct 1 Integrated_Webcam_HD
> iSerial 2 0001
> bNumConfigurations 1
> Configuration Descriptor:
> bLength 9
> bDescriptorType 2
> wTotalLength 1041
> bNumInterfaces 4
> bConfigurationValue 1
> iConfiguration 4 USB Camera
> bmAttributes 0x80
> (Bus Powered)
> MaxPower 500mA
> ** UNRECOGNIZED: 28 ff 42 49 53 54 00 01 06 06 10 00 00 00 00 00 01
> 07 f4 01 02 08 f4 01 03 09 f4 01 04 0a f4 01 05 0b f4 01 06 0c e8 03
> Interface Association:
> bLength 8
> bDescriptorType 11
> bFirstInterface 0
> bInterfaceCount 2
> bFunctionClass 14 Video
> bFunctionSubClass 3 Video Interface Collection
> bFunctionProtocol 0
> iFunction 5 Integrated Webcam
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 0
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 1 Video Control
> bInterfaceProtocol 0
> iInterface 5 Integrated Webcam
> VideoControl Interface Descriptor:
> bLength 13
> bDescriptorType 36
> bDescriptorSubtype 1 (HEADER)
> bcdUVC 1.00
> wTotalLength 107
> dwClockFrequency 15.000000MHz
> bInCollection 1
> baInterfaceNr( 0) 1
> VideoControl Interface Descriptor:
> bLength 18
> bDescriptorType 36
> bDescriptorSubtype 2 (INPUT_TERMINAL)
> bTerminalID 1
> wTerminalType 0x0201 Camera Sensor
> bAssocTerminal 0
> iTerminal 0
> wObjectiveFocalLengthMin 0
> wObjectiveFocalLengthMax 0
> wOcularFocalLength 0
> bControlSize 3
> bmControls 0x0000000e
> Auto-Exposure Mode
> Auto-Exposure Priority
> Exposure Time (Absolute)
> VideoControl Interface Descriptor:
> bLength 11
> bDescriptorType 36
> bDescriptorSubtype 5 (PROCESSING_UNIT)
> Warning: Descriptor too short
> bUnitID 2
> bSourceID 1
> wMaxMultiplier 0
> bControlSize 2
> bmControls 0x0000177f
> Brightness
> Contrast
> Hue
> Saturation
> Sharpness
> Gamma
> White Balance Temperature
> Backlight Compensation
> Gain
> Power Line Frequency
> White Balance Temperature, Auto
> iProcessing 0
> bmVideoStandards 0x09
> None
> SECAM - 625/50
> VideoControl Interface Descriptor:
> bLength 9
> bDescriptorType 36
> bDescriptorSubtype 3 (OUTPUT_TERMINAL)
> bTerminalID 3
> wTerminalType 0x0101 USB Streaming
> bAssocTerminal 0
> bSourceID 4
> iTerminal 0
> VideoControl Interface Descriptor:
> bLength 27
> bDescriptorType 36
> bDescriptorSubtype 6 (EXTENSION_UNIT)
> bUnitID 4
> guidExtensionCode {1229a78c-47b4-4094-b0ce-db07386fb938}
> bNumControl 2
> bNrPins 1
> baSourceID( 0) 7
> bControlSize 2
> bmControls( 0) 0x00
> bmControls( 1) 0x06
> iExtension 0
> VideoControl Interface Descriptor:
> bLength 29
> bDescriptorType 36
> bDescriptorSubtype 6 (EXTENSION_UNIT)
> bUnitID 7
> guidExtensionCode {0fb885c3-68c2-4547-90f7-8f47579d95fc}
> bNumControl 0
> bNrPins 1
> baSourceID( 0) 2
> bControlSize 4
> bmControls( 0) 0x0f
> bmControls( 1) 0x00
> bmControls( 2) 0x00
> bmControls( 3) 0x00
> iExtension 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x83 EP 3 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0010 1x 16 bytes
> bInterval 6
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 0
> bNumEndpoints 0
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> VideoStreaming Interface Descriptor:
> bLength 15
> bDescriptorType 36
> bDescriptorSubtype 1 (INPUT_HEADER)
> bNumFormats 2
> wTotalLength 395
> bEndPointAddress 129
> bmInfo 0
> bTerminalLink 3
> bStillCaptureMethod 1
> bTriggerSupport 1
> bTriggerUsage 0
> bControlSize 1
> bmaControls( 0) 0
> bmaControls( 1) 0
> VideoStreaming Interface Descriptor:
> bLength 11
> bDescriptorType 36
> bDescriptorSubtype 6 (FORMAT_MJPEG)
> bFormatIndex 1
> bNumFrameDescriptors 5
> bFlags 1
> Fixed-size samples: Yes
> bDefaultFrameIndex 1
> bAspectRatioX 0
> bAspectRatioY 0
> bmInterlaceFlags 0x00
> Interlaced stream or variable: No
> Fields per frame: 1 fields
> Field 1 first: No
> Field pattern: Field 1 only
> bCopyProtect 0
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 1
> bmCapabilities 0x01
> Still image supported
> wWidth 640
> wHeight 480
> dwMinBitRate 147456000
> dwMaxBitRate 147456000
> dwMaxVideoFrameBufferSize 614400
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 2
> bmCapabilities 0x01
> Still image supported
> wWidth 1280
> wHeight 720
> dwMinBitRate 442368000
> dwMaxBitRate 442368000
> dwMaxVideoFrameBufferSize 1843200
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 3
> bmCapabilities 0x01
> Still image supported
> wWidth 960
> wHeight 540
> dwMinBitRate 248832000
> dwMaxBitRate 248832000
> dwMaxVideoFrameBufferSize 1036800
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 4
> bmCapabilities 0x01
> Still image supported
> wWidth 848
> wHeight 480
> dwMinBitRate 195379200
> dwMaxBitRate 195379200
> dwMaxVideoFrameBufferSize 814080
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 7 (FRAME_MJPEG)
> bFrameIndex 5
> bmCapabilities 0x01
> Still image supported
> wWidth 640
> wHeight 360
> dwMinBitRate 110592000
> dwMaxBitRate 110592000
> dwMaxVideoFrameBufferSize 460800
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 6
> bDescriptorType 36
> bDescriptorSubtype 13 (COLORFORMAT)
> bColorPrimaries 1 (BT.709,sRGB)
> bTransferCharacteristics 1 (BT.709)
> bMatrixCoefficients 4 (SMPTE 170M (BT.601))
> VideoStreaming Interface Descriptor:
> bLength 27
> bDescriptorType 36
> bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
> bFormatIndex 2
> bNumFrameDescriptors 6
> guidFormat
> {32595559-0000-0010-8000-00aa00389b71}
> bBitsPerPixel 16
> bDefaultFrameIndex 1
> bAspectRatioX 0
> bAspectRatioY 0
> bmInterlaceFlags 0x00
> Interlaced stream or variable: No
> Fields per frame: 2 fields
> Field 1 first: No
> Field pattern: Field 1 only
> bCopyProtect 0
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 1
> bmCapabilities 0x01
> Still image supported
> wWidth 640
> wHeight 480
> dwMinBitRate 147456000
> dwMaxBitRate 147456000
> dwMaxVideoFrameBufferSize 614400
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 2
> bmCapabilities 0x01
> Still image supported
> wWidth 640
> wHeight 360
> dwMinBitRate 110592000
> dwMaxBitRate 110592000
> dwMaxVideoFrameBufferSize 460800
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 3
> bmCapabilities 0x01
> Still image supported
> wWidth 424
> wHeight 240
> dwMinBitRate 48844800
> dwMaxBitRate 48844800
> dwMaxVideoFrameBufferSize 203520
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 4
> bmCapabilities 0x01
> Still image supported
> wWidth 320
> wHeight 240
> dwMinBitRate 36864000
> dwMaxBitRate 36864000
> dwMaxVideoFrameBufferSize 153600
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 5
> bmCapabilities 0x01
> Still image supported
> wWidth 320
> wHeight 180
> dwMinBitRate 27648000
> dwMaxBitRate 27648000
> dwMaxVideoFrameBufferSize 115200
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 6
> bmCapabilities 0x01
> Still image supported
> wWidth 160
> wHeight 120
> dwMinBitRate 9216000
> dwMaxBitRate 9216000
> dwMaxVideoFrameBufferSize 38400
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 6
> bDescriptorType 36
> bDescriptorSubtype 13 (COLORFORMAT)
> bColorPrimaries 1 (BT.709,sRGB)
> bTransferCharacteristics 1 (BT.709)
> bMatrixCoefficients 4 (SMPTE 170M (BT.601))
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 1
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0080 1x 128 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 2
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 3
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0400 1x 1024 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 4
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0b00 2x 768 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 5
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0c00 2x 1024 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 6
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x13aa 3x 938 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 1
> bAlternateSetting 7
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x81 EP 1 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x1400 3x 1024 bytes
> bInterval 1
> Interface Association:
> bLength 8
> bDescriptorType 11
> bFirstInterface 2
> bInterfaceCount 2
> bFunctionClass 14 Video
> bFunctionSubClass 3 Video Interface Collection
> bFunctionProtocol 0
> iFunction 6 Integrated Webcam
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 2
> bAlternateSetting 0
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 1 Video Control
> bInterfaceProtocol 0
> iInterface 6 Integrated Webcam
> VideoControl Interface Descriptor:
> bLength 13
> bDescriptorType 36
> bDescriptorSubtype 1 (HEADER)
> bcdUVC 1.00
> wTotalLength 103
> dwClockFrequency 15.000000MHz
> bInCollection 1
> baInterfaceNr( 0) 3
> VideoControl Interface Descriptor:
> bLength 18
> bDescriptorType 36
> bDescriptorSubtype 2 (INPUT_TERMINAL)
> bTerminalID 11
> wTerminalType 0x0201 Camera Sensor
> bAssocTerminal 0
> iTerminal 0
> wObjectiveFocalLengthMin 0
> wObjectiveFocalLengthMax 0
> wOcularFocalLength 0
> bControlSize 3
> bmControls 0x00000000
> VideoControl Interface Descriptor:
> bLength 11
> bDescriptorType 36
> bDescriptorSubtype 5 (PROCESSING_UNIT)
> Warning: Descriptor too short
> bUnitID 9
> bSourceID 11
> wMaxMultiplier 0
> bControlSize 2
> bmControls 0x00000000
> iProcessing 0
> bmVideoStandards 0x09
> None
> SECAM - 625/50
> VideoControl Interface Descriptor:
> bLength 9
> bDescriptorType 36
> bDescriptorSubtype 3 (OUTPUT_TERMINAL)
> bTerminalID 8
> wTerminalType 0x0101 USB Streaming
> bAssocTerminal 0
> bSourceID 10
> iTerminal 0
> VideoControl Interface Descriptor:
> bLength 25
> bDescriptorType 36
> bDescriptorSubtype 6 (EXTENSION_UNIT)
> bUnitID 12
> guidExtensionCode {45b5da73-23c1-4a3d-a368-610f078c4397}
> bNumControl 0
> bNrPins 1
> baSourceID( 0) 9
> bControlSize 0
> iExtension 0
> VideoControl Interface Descriptor:
> bLength 27
> bDescriptorType 36
> bDescriptorSubtype 6 (EXTENSION_UNIT)
> bUnitID 10
> guidExtensionCode {1229a78c-47b4-4094-b0ce-db07386fb938}
> bNumControl 2
> bNrPins 1
> baSourceID( 0) 12
> bControlSize 2
> bmControls( 0) 0x00
> bmControls( 1) 0x06
> iExtension 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x85 EP 5 IN
> bmAttributes 3
> Transfer Type Interrupt
> Synch Type None
> Usage Type Data
> wMaxPacketSize 0x0010 1x 16 bytes
> bInterval 6
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 3
> bAlternateSetting 0
> bNumEndpoints 0
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> VideoStreaming Interface Descriptor:
> bLength 14
> bDescriptorType 36
> bDescriptorSubtype 1 (INPUT_HEADER)
> bNumFormats 1
> wTotalLength 87
> bEndPointAddress 130
> bmInfo 0
> bTerminalLink 8
> bStillCaptureMethod 2
> bTriggerSupport 1
> bTriggerUsage 0
> bControlSize 1
> bmaControls( 0) 0
> VideoStreaming Interface Descriptor:
> bLength 27
> bDescriptorType 36
> bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
> bFormatIndex 1
> bNumFrameDescriptors 1
> guidFormat
> {32595559-0000-0010-8000-00aa00389b71}
> bBitsPerPixel 16
> bDefaultFrameIndex 1
> bAspectRatioX 0
> bAspectRatioY 0
> bmInterlaceFlags 0x00
> Interlaced stream or variable: No
> Fields per frame: 2 fields
> Field 1 first: No
> Field pattern: Field 1 only
> bCopyProtect 0
> VideoStreaming Interface Descriptor:
> bLength 30
> bDescriptorType 36
> bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> bFrameIndex 1
> bmCapabilities 0x00
> Still image unsupported
> wWidth 340
> wHeight 374
> dwMinBitRate 61036800
> dwMaxBitRate 61036800
> dwMaxVideoFrameBufferSize 254320
> dwDefaultFrameInterval 333333
> bFrameIntervalType 1
> dwFrameInterval( 0) 333333
> VideoStreaming Interface Descriptor:
> bLength 10
> bDescriptorType 36
> bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
> bEndpointAddress 0
> bNumImageSizePatterns 1
> wWidth( 0) 340
> wHeight( 0) 374
> bNumCompressionPatterns 0
> VideoStreaming Interface Descriptor:
> bLength 6
> bDescriptorType 36
> bDescriptorSubtype 13 (COLORFORMAT)
> bColorPrimaries 1 (BT.709,sRGB)
> bTransferCharacteristics 1 (BT.709)
> bMatrixCoefficients 4 (SMPTE 170M (BT.601))
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 3
> bAlternateSetting 1
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0080 1x 128 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 3
> bAlternateSetting 2
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0200 1x 512 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 3
> bAlternateSetting 3
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0400 1x 1024 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 3
> bAlternateSetting 4
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0b00 2x 768 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 3
> bAlternateSetting 5
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x0c00 2x 1024 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 3
> bAlternateSetting 6
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x13aa 3x 938 bytes
> bInterval 1
> Interface Descriptor:
> bLength 9
> bDescriptorType 4
> bInterfaceNumber 3
> bAlternateSetting 7
> bNumEndpoints 1
> bInterfaceClass 14 Video
> bInterfaceSubClass 2 Video Streaming
> bInterfaceProtocol 0
> iInterface 0
> Endpoint Descriptor:
> bLength 7
> bDescriptorType 5
> bEndpointAddress 0x82 EP 2 IN
> bmAttributes 5
> Transfer Type Isochronous
> Synch Type Asynchronous
> Usage Type Data
> wMaxPacketSize 0x1400 3x 1024 bytes
> bInterval 1
> Device Qualifier (for other device speed):
> bLength 10
> bDescriptorType 6
> bcdUSB 2.00
> bDeviceClass 239 Miscellaneous Device
> bDeviceSubClass 2
> bDeviceProtocol 1 Interface Association
> bMaxPacketSize0 64
> bNumConfigurations 1
> Device Status: 0x0000
> (Bus Powered)
>
>
>
> thanks,
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: uvcvideo: IR camera lights only every second frame
2018-10-30 15:48 ` Kieran Bingham
@ 2018-10-30 18:38 ` Laurent Pinchart
2018-11-01 9:36 ` Ricardo Ribalda Delgado
1 sibling, 0 replies; 4+ messages in thread
From: Laurent Pinchart @ 2018-10-30 18:38 UTC (permalink / raw)
To: Kieran Bingham; +Cc: Jiri Slaby, linux-media
Hello,
On Tuesday, 30 October 2018 17:48:12 EET Kieran Bingham wrote:
> On 30/10/2018 14:36, Jiri Slaby wrote:
> > Hi,
> >
> > I have a Dell Lattitude 7280 with two webcams. The standard one works
> > fine (/dev/video0). The other one is an IR camera (/dev/video1). The
> > camera proper works fine and produces 340x374 frames. But there is an IR
> > led supposed to light the object. The video is 30fps, but the LED seems
> > to emit light only on half of the frames, i.e. on every second frame (15
> > fps). This makes the video blink a lot. The two consecutive frames look
> > like:
> > https://www.fi.muni.cz/~xslaby/sklad/mpv-shot0002.jpg
> > https://www.fi.muni.cz/~xslaby/sklad/mpv-shot0003.jpg
> >
> > Do you have any ideas what to check/test?
>
> I have an HP Spectre with IR camera, and it also 'flashes' alternate frames.
>
> I assumed this was something to do with controlling the lighting for
> face recognition some how.
>
> I'm fairly sure we don't control the 'IR flash' from the UVC.
>
> I wonder if there is a control parameter for the IR led in the
> extension-units?
[snip]
> > VideoControl Interface Descriptor:
> > bLength 18
> > bDescriptorType 36
> > bDescriptorSubtype 2 (INPUT_TERMINAL)
> > bTerminalID 11
> > wTerminalType 0x0201 Camera Sensor
> > bAssocTerminal 0
> > iTerminal 0
> > wObjectiveFocalLengthMin 0
> > wObjectiveFocalLengthMax 0
> > wOcularFocalLength 0
> > bControlSize 3
> > bmControls 0x00000000
> > VideoControl Interface Descriptor:
> > bLength 11
> > bDescriptorType 36
> > bDescriptorSubtype 5 (PROCESSING_UNIT)
> > Warning: Descriptor too short
> > bUnitID 9
> > bSourceID 11
> > wMaxMultiplier 0
> > bControlSize 2
> > bmControls 0x00000000
> > iProcessing 0
> > bmVideoStandards 0x09
> > None
> > SECAM - 625/50
> > VideoControl Interface Descriptor:
> > bLength 9
> > bDescriptorType 36
> > bDescriptorSubtype 3 (OUTPUT_TERMINAL)
> > bTerminalID 8
> > wTerminalType 0x0101 USB Streaming
> > bAssocTerminal 0
> > bSourceID 10
> > iTerminal 0
> > VideoControl Interface Descriptor:
> > bLength 25
> > bDescriptorType 36
> > bDescriptorSubtype 6 (EXTENSION_UNIT)
> > bUnitID 12
> > guidExtensionCode {45b5da73-23c1-4a3d-a368-610f078c4397}
> > bNumControl 0
> > bNrPins 1
> > baSourceID( 0) 9
> > bControlSize 0
> > iExtension 0
This extension unit is strange, it exposes no control.
> > VideoControl Interface Descriptor:
> > bLength 27
> > bDescriptorType 36
> > bDescriptorSubtype 6 (EXTENSION_UNIT)
> > bUnitID 10
> > guidExtensionCode {1229a78c-47b4-4094-b0ce-db07386fb938}
> > bNumControl 2
> > bNrPins 1
> > baSourceID( 0) 12
> > bControlSize 2
> > bmControls( 0) 0x00
> > bmControls( 1) 0x06
> > iExtension 0
This one exposes two controls, which are likely used to control the IR light.
I however suspect that the controls merely expose an indirect way to read/
write internal registers, so we would really need to capture a USB trace when
using the device in Windows (assuming that the machine is shipped with
software that can control the IR light).
[snip]
--
Regards,
Laurent Pinchart
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: uvcvideo: IR camera lights only every second frame
2018-10-30 15:48 ` Kieran Bingham
2018-10-30 18:38 ` Laurent Pinchart
@ 2018-11-01 9:36 ` Ricardo Ribalda Delgado
1 sibling, 0 replies; 4+ messages in thread
From: Ricardo Ribalda Delgado @ 2018-11-01 9:36 UTC (permalink / raw)
To: kieran.bingham; +Cc: Jiri Slaby, Laurent Pinchart, linux-media
Hi
On Tue, Oct 30, 2018 at 4:49 PM Kieran Bingham
<kieran.bingham@ideasonboard.com> wrote:
>
> Hi Jiri,
>
> On 30/10/2018 14:36, Jiri Slaby wrote:
> > Hi,
> >
> > I have a Dell Lattitude 7280 with two webcams. The standard one works
> > fine (/dev/video0). The other one is an IR camera (/dev/video1). The
> > camera proper works fine and produces 340x374 frames. But there is an IR
> > led supposed to light the object. The video is 30fps, but the LED seems
> > to emit light only on half of the frames, i.e. on every second frame (15
> > fps). This makes the video blink a lot. The two consecutive frames look
> > like:
> > https://www.fi.muni.cz/~xslaby/sklad/mpv-shot0002.jpg
> > https://www.fi.muni.cz/~xslaby/sklad/mpv-shot0003.jpg
> >
> > Do you have any ideas what to check/test?
>
> I have an HP Spectre with IR camera, and it also 'flashes' alternate frames.
>
> I assumed this was something to do with controlling the lighting for
> face recognition some how.
I think Kieran is right here. A very common way of detecting what is
close to the camera is using NIR LEDs due to how directional they are.
The algorithm is more or less:
You have a camera with a NIR filter (the rbg camera) and a camera without.
You alternate the NIR LEDs and substract both images. The results are
the object on the front.
You use that information to get what is in on the front of the RGB
camera (unaffected by the NIR leds).
Around 10 years ago we were using this approach for segmentation of
body parts. It worked like a charm for getting biometrical parameters
and detect gestures
https://repositorio.uam.es/bitstream/handle/10486/664236/biometric_morales_LNCS_2009_ps.pdf?sequence=3&isAllowed=y
Cheers!
>
> I'm fairly sure we don't control the 'IR flash' from the UVC.
>
> I wonder if there is a control parameter for the IR led in the
> extension-units?
>
> --
> Regards
>
> Kieran
>
>
>
> > $ v4l2-ctl --all -d /dev/video2
> > Driver Info (not using libv4l2):
> > Driver name : uvcvideo
> > Card type : Integrated_Webcam_HD: Integrate
> > Bus info : usb-0000:00:14.0-5
> > Driver version: 4.18.15
> > Capabilities : 0x84A00001
> > Video Capture
> > Metadata Capture
> > Streaming
> > Extended Pix Format
> > Device Capabilities
> > Device Caps : 0x04200001
> > Video Capture
> > Streaming
> > Extended Pix Format
> > Priority: 2
> > Video input : 0 (Camera 11: ok)
> > Format Video Capture:
> > Width/Height : 340/374
> > Pixel Format : 'YUYV'
> > Field : None
> > Bytes per Line : 680
> > Size Image : 254320
> > Colorspace : sRGB
> > Transfer Function : Default (maps to sRGB)
> > YCbCr/HSV Encoding: Default (maps to ITU-R 601)
> > Quantization : Default (maps to Limited Range)
> > Flags :
> > Crop Capability Video Capture:
> > Bounds : Left 0, Top 0, Width 340, Height 374
> > Default : Left 0, Top 0, Width 340, Height 374
> > Pixel Aspect: 1/1
> > Selection: crop_default, Left 0, Top 0, Width 340, Height 374
> > Selection: crop_bounds, Left 0, Top 0, Width 340, Height 374
> > Streaming Parameters Video Capture:
> > Capabilities : timeperframe
> > Frames per second: 30.000 (30/1)
> > Read buffers : 0
> >
> >
> >
> >
> >
> > $ lsusb -vs 1:3
> > Bus 001 Device 003: ID 0bda:5691 Realtek Semiconductor Corp.
> > Device Descriptor:
> > bLength 18
> > bDescriptorType 1
> > bcdUSB 2.00
> > bDeviceClass 239 Miscellaneous Device
> > bDeviceSubClass 2
> > bDeviceProtocol 1 Interface Association
> > bMaxPacketSize0 64
> > idVendor 0x0bda Realtek Semiconductor Corp.
> > idProduct 0x5691
> > bcdDevice 60.12
> > iManufacturer 3 CNFGE16N5214300025C2
> > iProduct 1 Integrated_Webcam_HD
> > iSerial 2 0001
> > bNumConfigurations 1
> > Configuration Descriptor:
> > bLength 9
> > bDescriptorType 2
> > wTotalLength 1041
> > bNumInterfaces 4
> > bConfigurationValue 1
> > iConfiguration 4 USB Camera
> > bmAttributes 0x80
> > (Bus Powered)
> > MaxPower 500mA
> > ** UNRECOGNIZED: 28 ff 42 49 53 54 00 01 06 06 10 00 00 00 00 00 01
> > 07 f4 01 02 08 f4 01 03 09 f4 01 04 0a f4 01 05 0b f4 01 06 0c e8 03
> > Interface Association:
> > bLength 8
> > bDescriptorType 11
> > bFirstInterface 0
> > bInterfaceCount 2
> > bFunctionClass 14 Video
> > bFunctionSubClass 3 Video Interface Collection
> > bFunctionProtocol 0
> > iFunction 5 Integrated Webcam
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 0
> > bAlternateSetting 0
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 1 Video Control
> > bInterfaceProtocol 0
> > iInterface 5 Integrated Webcam
> > VideoControl Interface Descriptor:
> > bLength 13
> > bDescriptorType 36
> > bDescriptorSubtype 1 (HEADER)
> > bcdUVC 1.00
> > wTotalLength 107
> > dwClockFrequency 15.000000MHz
> > bInCollection 1
> > baInterfaceNr( 0) 1
> > VideoControl Interface Descriptor:
> > bLength 18
> > bDescriptorType 36
> > bDescriptorSubtype 2 (INPUT_TERMINAL)
> > bTerminalID 1
> > wTerminalType 0x0201 Camera Sensor
> > bAssocTerminal 0
> > iTerminal 0
> > wObjectiveFocalLengthMin 0
> > wObjectiveFocalLengthMax 0
> > wOcularFocalLength 0
> > bControlSize 3
> > bmControls 0x0000000e
> > Auto-Exposure Mode
> > Auto-Exposure Priority
> > Exposure Time (Absolute)
> > VideoControl Interface Descriptor:
> > bLength 11
> > bDescriptorType 36
> > bDescriptorSubtype 5 (PROCESSING_UNIT)
> > Warning: Descriptor too short
> > bUnitID 2
> > bSourceID 1
> > wMaxMultiplier 0
> > bControlSize 2
> > bmControls 0x0000177f
> > Brightness
> > Contrast
> > Hue
> > Saturation
> > Sharpness
> > Gamma
> > White Balance Temperature
> > Backlight Compensation
> > Gain
> > Power Line Frequency
> > White Balance Temperature, Auto
> > iProcessing 0
> > bmVideoStandards 0x09
> > None
> > SECAM - 625/50
> > VideoControl Interface Descriptor:
> > bLength 9
> > bDescriptorType 36
> > bDescriptorSubtype 3 (OUTPUT_TERMINAL)
> > bTerminalID 3
> > wTerminalType 0x0101 USB Streaming
> > bAssocTerminal 0
> > bSourceID 4
> > iTerminal 0
> > VideoControl Interface Descriptor:
> > bLength 27
> > bDescriptorType 36
> > bDescriptorSubtype 6 (EXTENSION_UNIT)
> > bUnitID 4
> > guidExtensionCode {1229a78c-47b4-4094-b0ce-db07386fb938}
> > bNumControl 2
> > bNrPins 1
> > baSourceID( 0) 7
> > bControlSize 2
> > bmControls( 0) 0x00
> > bmControls( 1) 0x06
> > iExtension 0
> > VideoControl Interface Descriptor:
> > bLength 29
> > bDescriptorType 36
> > bDescriptorSubtype 6 (EXTENSION_UNIT)
> > bUnitID 7
> > guidExtensionCode {0fb885c3-68c2-4547-90f7-8f47579d95fc}
> > bNumControl 0
> > bNrPins 1
> > baSourceID( 0) 2
> > bControlSize 4
> > bmControls( 0) 0x0f
> > bmControls( 1) 0x00
> > bmControls( 2) 0x00
> > bmControls( 3) 0x00
> > iExtension 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x83 EP 3 IN
> > bmAttributes 3
> > Transfer Type Interrupt
> > Synch Type None
> > Usage Type Data
> > wMaxPacketSize 0x0010 1x 16 bytes
> > bInterval 6
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 1
> > bAlternateSetting 0
> > bNumEndpoints 0
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > VideoStreaming Interface Descriptor:
> > bLength 15
> > bDescriptorType 36
> > bDescriptorSubtype 1 (INPUT_HEADER)
> > bNumFormats 2
> > wTotalLength 395
> > bEndPointAddress 129
> > bmInfo 0
> > bTerminalLink 3
> > bStillCaptureMethod 1
> > bTriggerSupport 1
> > bTriggerUsage 0
> > bControlSize 1
> > bmaControls( 0) 0
> > bmaControls( 1) 0
> > VideoStreaming Interface Descriptor:
> > bLength 11
> > bDescriptorType 36
> > bDescriptorSubtype 6 (FORMAT_MJPEG)
> > bFormatIndex 1
> > bNumFrameDescriptors 5
> > bFlags 1
> > Fixed-size samples: Yes
> > bDefaultFrameIndex 1
> > bAspectRatioX 0
> > bAspectRatioY 0
> > bmInterlaceFlags 0x00
> > Interlaced stream or variable: No
> > Fields per frame: 1 fields
> > Field 1 first: No
> > Field pattern: Field 1 only
> > bCopyProtect 0
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 7 (FRAME_MJPEG)
> > bFrameIndex 1
> > bmCapabilities 0x01
> > Still image supported
> > wWidth 640
> > wHeight 480
> > dwMinBitRate 147456000
> > dwMaxBitRate 147456000
> > dwMaxVideoFrameBufferSize 614400
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 7 (FRAME_MJPEG)
> > bFrameIndex 2
> > bmCapabilities 0x01
> > Still image supported
> > wWidth 1280
> > wHeight 720
> > dwMinBitRate 442368000
> > dwMaxBitRate 442368000
> > dwMaxVideoFrameBufferSize 1843200
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 7 (FRAME_MJPEG)
> > bFrameIndex 3
> > bmCapabilities 0x01
> > Still image supported
> > wWidth 960
> > wHeight 540
> > dwMinBitRate 248832000
> > dwMaxBitRate 248832000
> > dwMaxVideoFrameBufferSize 1036800
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 7 (FRAME_MJPEG)
> > bFrameIndex 4
> > bmCapabilities 0x01
> > Still image supported
> > wWidth 848
> > wHeight 480
> > dwMinBitRate 195379200
> > dwMaxBitRate 195379200
> > dwMaxVideoFrameBufferSize 814080
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 7 (FRAME_MJPEG)
> > bFrameIndex 5
> > bmCapabilities 0x01
> > Still image supported
> > wWidth 640
> > wHeight 360
> > dwMinBitRate 110592000
> > dwMaxBitRate 110592000
> > dwMaxVideoFrameBufferSize 460800
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 6
> > bDescriptorType 36
> > bDescriptorSubtype 13 (COLORFORMAT)
> > bColorPrimaries 1 (BT.709,sRGB)
> > bTransferCharacteristics 1 (BT.709)
> > bMatrixCoefficients 4 (SMPTE 170M (BT.601))
> > VideoStreaming Interface Descriptor:
> > bLength 27
> > bDescriptorType 36
> > bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
> > bFormatIndex 2
> > bNumFrameDescriptors 6
> > guidFormat
> > {32595559-0000-0010-8000-00aa00389b71}
> > bBitsPerPixel 16
> > bDefaultFrameIndex 1
> > bAspectRatioX 0
> > bAspectRatioY 0
> > bmInterlaceFlags 0x00
> > Interlaced stream or variable: No
> > Fields per frame: 2 fields
> > Field 1 first: No
> > Field pattern: Field 1 only
> > bCopyProtect 0
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> > bFrameIndex 1
> > bmCapabilities 0x01
> > Still image supported
> > wWidth 640
> > wHeight 480
> > dwMinBitRate 147456000
> > dwMaxBitRate 147456000
> > dwMaxVideoFrameBufferSize 614400
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> > bFrameIndex 2
> > bmCapabilities 0x01
> > Still image supported
> > wWidth 640
> > wHeight 360
> > dwMinBitRate 110592000
> > dwMaxBitRate 110592000
> > dwMaxVideoFrameBufferSize 460800
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> > bFrameIndex 3
> > bmCapabilities 0x01
> > Still image supported
> > wWidth 424
> > wHeight 240
> > dwMinBitRate 48844800
> > dwMaxBitRate 48844800
> > dwMaxVideoFrameBufferSize 203520
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> > bFrameIndex 4
> > bmCapabilities 0x01
> > Still image supported
> > wWidth 320
> > wHeight 240
> > dwMinBitRate 36864000
> > dwMaxBitRate 36864000
> > dwMaxVideoFrameBufferSize 153600
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> > bFrameIndex 5
> > bmCapabilities 0x01
> > Still image supported
> > wWidth 320
> > wHeight 180
> > dwMinBitRate 27648000
> > dwMaxBitRate 27648000
> > dwMaxVideoFrameBufferSize 115200
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> > bFrameIndex 6
> > bmCapabilities 0x01
> > Still image supported
> > wWidth 160
> > wHeight 120
> > dwMinBitRate 9216000
> > dwMaxBitRate 9216000
> > dwMaxVideoFrameBufferSize 38400
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 6
> > bDescriptorType 36
> > bDescriptorSubtype 13 (COLORFORMAT)
> > bColorPrimaries 1 (BT.709,sRGB)
> > bTransferCharacteristics 1 (BT.709)
> > bMatrixCoefficients 4 (SMPTE 170M (BT.601))
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 1
> > bAlternateSetting 1
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x81 EP 1 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x0080 1x 128 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 1
> > bAlternateSetting 2
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x81 EP 1 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x0200 1x 512 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 1
> > bAlternateSetting 3
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x81 EP 1 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x0400 1x 1024 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 1
> > bAlternateSetting 4
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x81 EP 1 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x0b00 2x 768 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 1
> > bAlternateSetting 5
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x81 EP 1 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x0c00 2x 1024 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 1
> > bAlternateSetting 6
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x81 EP 1 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x13aa 3x 938 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 1
> > bAlternateSetting 7
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x81 EP 1 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x1400 3x 1024 bytes
> > bInterval 1
> > Interface Association:
> > bLength 8
> > bDescriptorType 11
> > bFirstInterface 2
> > bInterfaceCount 2
> > bFunctionClass 14 Video
> > bFunctionSubClass 3 Video Interface Collection
> > bFunctionProtocol 0
> > iFunction 6 Integrated Webcam
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 2
> > bAlternateSetting 0
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 1 Video Control
> > bInterfaceProtocol 0
> > iInterface 6 Integrated Webcam
> > VideoControl Interface Descriptor:
> > bLength 13
> > bDescriptorType 36
> > bDescriptorSubtype 1 (HEADER)
> > bcdUVC 1.00
> > wTotalLength 103
> > dwClockFrequency 15.000000MHz
> > bInCollection 1
> > baInterfaceNr( 0) 3
> > VideoControl Interface Descriptor:
> > bLength 18
> > bDescriptorType 36
> > bDescriptorSubtype 2 (INPUT_TERMINAL)
> > bTerminalID 11
> > wTerminalType 0x0201 Camera Sensor
> > bAssocTerminal 0
> > iTerminal 0
> > wObjectiveFocalLengthMin 0
> > wObjectiveFocalLengthMax 0
> > wOcularFocalLength 0
> > bControlSize 3
> > bmControls 0x00000000
> > VideoControl Interface Descriptor:
> > bLength 11
> > bDescriptorType 36
> > bDescriptorSubtype 5 (PROCESSING_UNIT)
> > Warning: Descriptor too short
> > bUnitID 9
> > bSourceID 11
> > wMaxMultiplier 0
> > bControlSize 2
> > bmControls 0x00000000
> > iProcessing 0
> > bmVideoStandards 0x09
> > None
> > SECAM - 625/50
> > VideoControl Interface Descriptor:
> > bLength 9
> > bDescriptorType 36
> > bDescriptorSubtype 3 (OUTPUT_TERMINAL)
> > bTerminalID 8
> > wTerminalType 0x0101 USB Streaming
> > bAssocTerminal 0
> > bSourceID 10
> > iTerminal 0
> > VideoControl Interface Descriptor:
> > bLength 25
> > bDescriptorType 36
> > bDescriptorSubtype 6 (EXTENSION_UNIT)
> > bUnitID 12
> > guidExtensionCode {45b5da73-23c1-4a3d-a368-610f078c4397}
> > bNumControl 0
> > bNrPins 1
> > baSourceID( 0) 9
> > bControlSize 0
> > iExtension 0
> > VideoControl Interface Descriptor:
> > bLength 27
> > bDescriptorType 36
> > bDescriptorSubtype 6 (EXTENSION_UNIT)
> > bUnitID 10
> > guidExtensionCode {1229a78c-47b4-4094-b0ce-db07386fb938}
> > bNumControl 2
> > bNrPins 1
> > baSourceID( 0) 12
> > bControlSize 2
> > bmControls( 0) 0x00
> > bmControls( 1) 0x06
> > iExtension 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x85 EP 5 IN
> > bmAttributes 3
> > Transfer Type Interrupt
> > Synch Type None
> > Usage Type Data
> > wMaxPacketSize 0x0010 1x 16 bytes
> > bInterval 6
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 3
> > bAlternateSetting 0
> > bNumEndpoints 0
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > VideoStreaming Interface Descriptor:
> > bLength 14
> > bDescriptorType 36
> > bDescriptorSubtype 1 (INPUT_HEADER)
> > bNumFormats 1
> > wTotalLength 87
> > bEndPointAddress 130
> > bmInfo 0
> > bTerminalLink 8
> > bStillCaptureMethod 2
> > bTriggerSupport 1
> > bTriggerUsage 0
> > bControlSize 1
> > bmaControls( 0) 0
> > VideoStreaming Interface Descriptor:
> > bLength 27
> > bDescriptorType 36
> > bDescriptorSubtype 4 (FORMAT_UNCOMPRESSED)
> > bFormatIndex 1
> > bNumFrameDescriptors 1
> > guidFormat
> > {32595559-0000-0010-8000-00aa00389b71}
> > bBitsPerPixel 16
> > bDefaultFrameIndex 1
> > bAspectRatioX 0
> > bAspectRatioY 0
> > bmInterlaceFlags 0x00
> > Interlaced stream or variable: No
> > Fields per frame: 2 fields
> > Field 1 first: No
> > Field pattern: Field 1 only
> > bCopyProtect 0
> > VideoStreaming Interface Descriptor:
> > bLength 30
> > bDescriptorType 36
> > bDescriptorSubtype 5 (FRAME_UNCOMPRESSED)
> > bFrameIndex 1
> > bmCapabilities 0x00
> > Still image unsupported
> > wWidth 340
> > wHeight 374
> > dwMinBitRate 61036800
> > dwMaxBitRate 61036800
> > dwMaxVideoFrameBufferSize 254320
> > dwDefaultFrameInterval 333333
> > bFrameIntervalType 1
> > dwFrameInterval( 0) 333333
> > VideoStreaming Interface Descriptor:
> > bLength 10
> > bDescriptorType 36
> > bDescriptorSubtype 3 (STILL_IMAGE_FRAME)
> > bEndpointAddress 0
> > bNumImageSizePatterns 1
> > wWidth( 0) 340
> > wHeight( 0) 374
> > bNumCompressionPatterns 0
> > VideoStreaming Interface Descriptor:
> > bLength 6
> > bDescriptorType 36
> > bDescriptorSubtype 13 (COLORFORMAT)
> > bColorPrimaries 1 (BT.709,sRGB)
> > bTransferCharacteristics 1 (BT.709)
> > bMatrixCoefficients 4 (SMPTE 170M (BT.601))
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 3
> > bAlternateSetting 1
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x82 EP 2 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x0080 1x 128 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 3
> > bAlternateSetting 2
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x82 EP 2 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x0200 1x 512 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 3
> > bAlternateSetting 3
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x82 EP 2 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x0400 1x 1024 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 3
> > bAlternateSetting 4
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x82 EP 2 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x0b00 2x 768 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 3
> > bAlternateSetting 5
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x82 EP 2 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x0c00 2x 1024 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 3
> > bAlternateSetting 6
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x82 EP 2 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x13aa 3x 938 bytes
> > bInterval 1
> > Interface Descriptor:
> > bLength 9
> > bDescriptorType 4
> > bInterfaceNumber 3
> > bAlternateSetting 7
> > bNumEndpoints 1
> > bInterfaceClass 14 Video
> > bInterfaceSubClass 2 Video Streaming
> > bInterfaceProtocol 0
> > iInterface 0
> > Endpoint Descriptor:
> > bLength 7
> > bDescriptorType 5
> > bEndpointAddress 0x82 EP 2 IN
> > bmAttributes 5
> > Transfer Type Isochronous
> > Synch Type Asynchronous
> > Usage Type Data
> > wMaxPacketSize 0x1400 3x 1024 bytes
> > bInterval 1
> > Device Qualifier (for other device speed):
> > bLength 10
> > bDescriptorType 6
> > bcdUSB 2.00
> > bDeviceClass 239 Miscellaneous Device
> > bDeviceSubClass 2
> > bDeviceProtocol 1 Interface Association
> > bMaxPacketSize0 64
> > bNumConfigurations 1
> > Device Status: 0x0000
> > (Bus Powered)
> >
> >
> >
> > thanks,
> >
>
--
Ricardo Ribalda
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2018-11-01 18:39 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-10-30 14:36 uvcvideo: IR camera lights only every second frame Jiri Slaby
2018-10-30 15:48 ` Kieran Bingham
2018-10-30 18:38 ` Laurent Pinchart
2018-11-01 9:36 ` Ricardo Ribalda Delgado
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.