If the data is in bayer mode you could have a look at guvcview code
(colorspaces.c) there you will find conversion functions for bayer to
yuv, just apply the appropriate function for decoding in uvcGrab
function at v4l2uvc.c.
Best regards,
Paulo
Sebastian Scherer escreveu:
> Hi,
> I tried a raw dump with luvcview -c. The resulting file is 744x480
> big. With the following commands I can decode the image properly in
> matlab:
> fid = fopen('frame000.raw');
> A=fread(fid,357120,'uchar');
> Ares = reshape(A,744,480);
> imshow(demosaic(uint8(Ares),'grbg'))
>
> Is there a way I could hack the driver to produce the same result?
> This would be much more convient (and efficient) to use the data in
> some vision code I am writing. I tried changing
> .name = "YUV 4:2:2 (YUYV)",
> .guid = UVC_GUID_FORMAT_YUY2,
> .fcc = V4L2_PIX_FMT_YUYV,
>
> the fcc to
> V4L2_PIX_FMT_SBGGR8 but that caused a segfault with luvcview. Is
> there a way I could force it to use bayer?
> Thank you
>
>
> Sebastian
>
>
> 2009/3/9 Sebastian Scherer <[email protected]>:
>
>> Hi,
>> Thank you so much for your help!
>>
>> How do I capture raw frames?
>>
>> What would it take to get the single frame capture implemented?
>>
>> Another strange thing is that the camera also supports 60 frames per
>> second and it does not show up as a format. Could this be related to
>> the 372 size?
>>
>> This is the output from guvcview --verbose:
>> guvcview 1.0.2
>> video_device: /dev/video0
>> vid_sleep: 0
>> resolution: 372 x 480
>> windowsize: 480 x 700
>> vert pane: 578
>> spin behavior: 0
>> mode: uyvy
>> fps: 1/30
>> Display Fps: 0
>> bpp: 0
>> hwaccel: 1
>> grabmethod: 1
>> avi_format: 2
>> sound: 0
>> sound Device: 2
>> sound samp rate: 0
>> sound Channels: 0
>> Sound Block Size: 1 seconds
>> Sound Format: 80
>> Sound bit Rate: 160 Kbps
>> Pan Step: 2 degrees
>> Tilt Step: 2 degrees
>> Video Filter Flags: 0
>> image inc: 0
>> profile(default):/home/ulb/default.gpfl
>> language catalog=> dir:/usr/share/locale type�ػrï�...@�gtk20
>> lang:en_US.UTF-8 cat:guvcview.mo
>> uyvy: setting format to 1498831189
>> video device: /dev/video0
>> /dev/video0 - device 1
>> Init. DFx 21AUC03 (location: usb-0000:00:1a.7-2)
>> { pixelformat = 'YUYV', description = 'YUV 4:2:2 (YUYV)' }
>> { discrete: width = 372, height = 480 }
>> Â Â Â Â Time interval between frame: 1/30,
>> { discrete: width = 320, height = 480 }
>> Â Â Â Â Time interval between frame: 1/30,
>> { pixelformat = 'UYVY', description = 'YUV 4:2:2 (UYVY)' }
>> { discrete: width = 372, height = 480 }
>> Â Â Â Â Time interval between frame: 1/30,
>> { discrete: width = 320, height = 480 }
>> Â Â Â Â Time interval between frame: 1/30,
>> checking format: 1498831189
>> vid:199e
>> pid:8202
>> driver:uvcvideo
>> Controls:
>> control[0]: 0x980913 Â Gain, 16:1:64, default 16
>> control[1]: 0x9a0901 Â Exposure, Auto, 0:1:3, default 6
>> control[2]: 0x9a0902 Â Exposure (Absolute), 1:1:2550, default 127
>> resolutions of 2º format=2
>> frame rates of 1º resolution=1
>> Def. Res: 0 Â numb. fps:1
>> --------------------------------------- device #0
>> [ Default Input, Default Output ]
>> Name           = /dev/dsp
>> Host API Â Â Â Â Â Â Â Â = OSS
>> Max inputs = 16, Max outputs = 16
>> Def. low input latency  =   0.012
>> Def. low output latency  =   0.012
>> Def. high input latency  =   0.046
>> Def. high output latency = Â Â 0.046
>> Def. sample rate     = 44100.00
>> --------------------------------------- device #1
>> Name           = HDA Intel: ALC260 Analog (hw:0,0)
>> Host API Â Â Â Â Â Â Â Â = ALSA
>> Max inputs = 2, Max outputs = 2
>> Def. low input latency  =   0.012
>> Def. low output latency  =   0.012
>> Def. high input latency  =   0.046
>> Def. high output latency = Â Â 0.046
>> Def. sample rate     = 44100.00
>> --------------------------------------- device #2
>> Name           = HDA Intel: ALC260 Digital (hw:0,1)
>> Host API Â Â Â Â Â Â Â Â = ALSA
>> Max inputs = 0, Max outputs = 2
>> Def. low input latency  =  -1.000
>> Def. low output latency  =   0.012
>> Def. high input latency  =  -1.000
>> Def. high output latency = Â Â 0.046
>> Def. sample rate     = 44100.00
>> --------------------------------------- device #3
>> Name           = front
>> Host API Â Â Â Â Â Â Â Â = ALSA
>> Max inputs = 0, Max outputs = 2
>> Def. low input latency  =  -1.000
>> Def. low output latency  =   0.012
>> Def. high input latency  =  -1.000
>> Def. high output latency = Â Â 0.046
>> Def. sample rate     = 44100.00
>> --------------------------------------- device #4
>> Name           = surround40
>> Host API Â Â Â Â Â Â Â Â = ALSA
>> Max inputs = 0, Max outputs = 2
>> Def. low input latency  =  -1.000
>> Def. low output latency  =   0.012
>> Def. high input latency  =  -1.000
>> Def. high output latency = Â Â 0.046
>> Def. sample rate     = 44100.00
>> --------------------------------------- device #5
>> Name           = surround51
>> Host API Â Â Â Â Â Â Â Â = ALSA
>> Max inputs = 0, Max outputs = 2
>> Def. low input latency  =  -1.000
>> Def. low output latency  =   0.012
>> Def. high input latency  =  -1.000
>> Def. high output latency = Â Â 0.046
>> Def. sample rate     = 44100.00
>> --------------------------------------- device #6
>> Name           = surround71
>> Host API Â Â Â Â Â Â Â Â = ALSA
>> Max inputs = 0, Max outputs = 2
>> Def. low input latency  =  -1.000
>> Def. low output latency  =   0.012
>> Def. high input latency  =  -1.000
>> Def. high output latency = Â Â 0.046
>> Def. sample rate     = 44100.00
>> --------------------------------------- device #7
>> Name           = iec958
>> Host API Â Â Â Â Â Â Â Â = ALSA
>> Max inputs = 0, Max outputs = 2
>> Def. low input latency  =  -1.000
>> Def. low output latency  =   0.012
>> Def. high input latency  =  -1.000
>> Def. high output latency = Â Â 0.046
>> Def. sample rate     = 44100.00
>> --------------------------------------- device #8
>> Name           = spdif
>> Host API Â Â Â Â Â Â Â Â = ALSA
>> Max inputs = 0, Max outputs = 2
>> Def. low input latency  =  -1.000
>> Def. low output latency  =   0.012
>> Def. high input latency  =  -1.000
>> Def. high output latency = Â Â 0.046
>> Def. sample rate     = 44100.00
>> --------------------------------------- device #9
>> [ Default ALSA Input, Default ALSA Output ]
>> Name           = default
>> Host API Â Â Â Â Â Â Â Â = ALSA
>> Max inputs = 128, Max outputs = 128
>> Def. low input latency  =   0.043
>> Def. low output latency  =   0.043
>> Def. high input latency  =   0.046
>> Def. high output latency = Â Â 0.046
>> Def. sample rate     = 44100.00
>> --------------------------------------- device #10
>> Name           = dmix
>> Host API Â Â Â Â Â Â Â Â = ALSA
>> Max inputs = 0, Max outputs = 2
>> Def. low input latency  =  -1.000
>> Def. low output latency  =   0.043
>> Def. high input latency  =  -1.000
>> Def. high output latency = Â Â 0.043
>> Def. sample rate     = 48000.00
>> ----------------------------------------------
>> SampleRate:0 Channels:0
>> Video driver: x11
>> A window manager is available
>>
>>
>>
>> 2009/3/9 Paulo Assis <[email protected]>:
>>
>>> For the list (I keep pressing the reply button, and forget to change the
>>> address)
>>>
>>> Sebastian,
>>>
>>> Sebastian Scherer escreveu:
>>>
>>>> Hi,
>>>> Thank you for your replies. I tried guvcview with both formats but the
>>>> output seems to be the same. It would be fine with me to manually
>>>> correct the output.
>>>>
>>>>
>>>>
>>> What is the console output from guvcview --verbose ?
>>> Setting an unsupported device format would only make guvcview drop back
>>> to the first supported device format.
>>>
>>>
>>>> However I would really like to capture the full resolution images.
>>>> How can I use capture still images?
>>>>
>>>>
>>>>
>>> I don't think that's implemented in linux uvc.
>>>
>>>
>>>
>>>> Also the 372 does not really make sense because this should not be a
>>>> frame size that is supported by the camera. Maybe halving the size
>>>> messes up the encoding?
>>>> Thank you
>>>>
>>>>
>>>>
>>> Your best bet is to grab a RAW frame and try to analyse it.
>>> I would say that the 372 pix line needs to be converted to 744, UYVY has
>>> 2 bytes per pixel, although you need 4 bytes to render 2 pixels, in this
>>> case it seems you are getting a format with 1 byte per pixel.
>>>
>>>> Sebastian
>>>>
>>>>
>>>> 2009/3/9 Paulo Assis <[email protected]>:
>>>>
>>>>
>>>>> Sebastien, I've taken another look at luvcview output and it reports
>>>>> UYVY not YUYV, luvcview doesn't support this format I believe,
>>>>> you should try the latest version from guvcview (1.0.2), and see if
>>>>> outputs the frame correctly.
>>>>>
>>>>> Best regards,
>>>>> Paulo
>>>>>
>>>>> Sebastian Scherer escreveu:
>>>>>
>>>>>
>>>>>> Hi,
>>>>>> After looking a little more carefully it might be that the resolution
>>>>>> problem is related to de-bayering.
>>>>>> I uploaded a sample image captured from the video:
>>>>>> http://www.frc.ri.cmu.edu/~basti/01-20090306125232-17.jpg
>>>>>>
>>>>>> Does anybody have any insight what the problem could be?
>>>>>>
>>>>>> I downloaded the latest drivers and used them on Ubuntu 8.10 but the
>>>>>> problem persists.
>>>>>> Thank you
>>>>>>
>>>>>> Sebastian
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>>> Hi,
>>>>>>> I have a problem with this camera.
>>>>>>> http://www.theimagingsource.com/en_US/products/oem-cameras/usb-cmos-color/dfm21auc03ml/
>>>>>>> It shows a picture but I cannot set the frame size and resolution of
>>>>>>> the camera. The camera supports
>>>>>>> 60 frames per second and a resolution of 744x480 YUV2. However I
>>>>>>> always get 372x480 and the colors are wrong.
>>>>>>>
>>>>>>> This is what dmesg reports:
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> [179400.340015] usb 6-1: new high speed USB device using ehci_hcd and
>>>>>>> address 3
>>>>>>> [179400.777492] usb 6-1: configuration #1 chosen from 1 choice
>>>>>>> [179400.777790] uvcvideo: Found UVC 1.00 device DFx 21AUC03 (199e:8202)
>>>>>>> [179401.306390] input: DFx 21AUC03 as
>>>>>>> /devices/pci0000:00/0000:00:1a.7/usb6/6-1/6-1:1.0/input/input7
>>>>>>>
>>>>>>> This is whalt lsusb reports:
>>>>>>> Bus 006 Device 003: ID 199e:8202 The Imaging Source Europe GmbH
>>>>>>> Device Descriptor:
>>>>>>>  bLength         18
>>>>>>>  bDescriptorType     1
>>>>>>> Â bcdUSB Â Â Â Â Â Â Â 2.00
>>>>>>>  bDeviceClass      239 Miscellaneous Device
>>>>>>>  bDeviceSubClass     2 ?
>>>>>>>  bDeviceProtocol     1 Interface Association
>>>>>>> Â bMaxPacketSize0 Â Â Â Â 64
>>>>>>>  idVendor      0x199e The Imaging Source Europe GmbH
>>>>>>>  idProduct      0x8202
>>>>>>>  bcdDevice       8.13
>>>>>>>  iManufacturer      2 The Imaging Source Europe GmbH
>>>>>>>  iProduct         1 DFx 21AUC03
>>>>>>>  iSerial         3 38800104
>>>>>>>  bNumConfigurations    1
>>>>>>> Â Configuration Descriptor:
>>>>>>>   bLength         9
>>>>>>>   bDescriptorType     2
>>>>>>>   wTotalLength      349
>>>>>>>   bNumInterfaces      2
>>>>>>>   bConfigurationValue   1
>>>>>>>   iConfiguration      0
>>>>>>>   bmAttributes     0x80
>>>>>>> Â Â Â (Bus Powered)
>>>>>>>   MaxPower        500mA
>>>>>>> Â Â Interface Association:
>>>>>>>    bLength         8
>>>>>>>    bDescriptorType     11
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>    bFirstInterface     0
>>>>>>    bInterfaceCount     2
>>>>>>    bFunctionClass     14 Video
>>>>>>    bFunctionSubClass    3 Video Interface Collection
>>>>>>    bFunctionProtocol    0
>>>>>>    iFunction        0
>>>>>> Â Â Interface Descriptor:
>>>>>>    bLength         9
>>>>>>    bDescriptorType     4
>>>>>>    bInterfaceNumber     0
>>>>>>    bAlternateSetting    0
>>>>>>    bNumEndpoints      1
>>>>>>    bInterfaceClass     14 Video
>>>>>>    bInterfaceSubClass    1 Video Control
>>>>>>    bInterfaceProtocol    0
>>>>>>    iInterface        0
>>>>>> Â Â Â VideoControl Interface Descriptor:
>>>>>>     bLength         13
>>>>>>     bDescriptorType     36
>>>>>>     bDescriptorSubtype    1 (HEADER)
>>>>>> Â Â Â Â bcdUVC Â Â Â Â Â Â Â 1.00
>>>>>>     wTotalLength      78
>>>>>>     dwClockFrequency     6.000000MHz
>>>>>>     bInCollection      1
>>>>>> Â Â Â Â baInterfaceNr( 0) Â Â Â 1
>>>>>> Â Â Â VideoControl Interface Descriptor:
>>>>>>     bLength         18
>>>>>>     bDescriptorType     36
>>>>>>     bDescriptorSubtype    2 (INPUT_TERMINAL)
>>>>>> Â Â Â Â bTerminalID Â Â Â Â Â Â 1
>>>>>>     wTerminalType    0x0201 Camera Sensor
>>>>>>     bAssocTerminal      0
>>>>>>     iTerminal        0
>>>>>>     wObjectiveFocalLengthMin    0
>>>>>>     wObjectiveFocalLengthMax    0
>>>>>>     wOcularFocalLength       0
>>>>>>     bControlSize          3
>>>>>>     bmControls      0x0000001a
>>>>>> Â Â Â Â Â Auto-Exposure Mode
>>>>>> Â Â Â Â Â Exposure Time (Absolute)
>>>>>> Â Â Â Â Â Exposure Time (Relative)
>>>>>> Â Â Â VideoControl Interface Descriptor:
>>>>>>     bLength         12
>>>>>>     bDescriptorType     36
>>>>>>     bDescriptorSubtype    5 (PROCESSING_UNIT)
>>>>>> Â Â Â Warning: Descriptor too short
>>>>>> Â Â Â Â bUnitID Â Â Â Â Â Â Â Â 3
>>>>>> Â Â Â Â bSourceID Â Â Â Â Â Â Â 1
>>>>>>     wMaxMultiplier      0
>>>>>>     bControlSize       3
>>>>>>     bmControls   0x00000200
>>>>>> Â Â Â Â Â Gain
>>>>>>     iProcessing       0
>>>>>>     bmVideoStandards   0x1a
>>>>>> Â Â Â Â Â NTSC - 525/60
>>>>>> Â Â Â Â Â SECAM - 625/50
>>>>>> Â Â Â Â Â NTSC - 625/50
>>>>>> Â Â Â VideoControl Interface Descriptor:
>>>>>>     bLength         26
>>>>>>     bDescriptorType     36
>>>>>>     bDescriptorSubtype    6 (EXTENSION_UNIT)
>>>>>> Â Â Â Â bUnitID Â Â Â Â Â Â Â Â 4
>>>>>>     guidExtensionCode    Â
>>>>>> {2652215a-8932-5641-894a-5c557cdf9664}
>>>>>>     bNumControl       4
>>>>>>     bNrPins         1
>>>>>> Â Â Â Â baSourceID( 0) Â Â Â Â Â 3
>>>>>>     bControlSize       1
>>>>>> Â Â Â Â bmControls( 0) Â Â Â 0x1f
>>>>>>     iExtension        0
>>>>>> Â Â Â VideoControl Interface Descriptor:
>>>>>>     bLength         9
>>>>>>     bDescriptorType     36
>>>>>>     bDescriptorSubtype    3 (OUTPUT_TERMINAL)
>>>>>> Â Â Â Â bTerminalID Â Â Â Â Â Â 2
>>>>>>     wTerminalType    0x0101 USB Streaming
>>>>>>     bAssocTerminal      0
>>>>>> Â Â Â Â bSourceID Â Â Â Â Â Â Â 4
>>>>>>     iTerminal        0
>>>>>> Â Â Â Endpoint Descriptor:
>>>>>>     bLength         7
>>>>>>     bDescriptorType     5
>>>>>>     bEndpointAddress   0x81  EP 1 IN
>>>>>>     bmAttributes       3
>>>>>>      Transfer Type       Interrupt
>>>>>>      Synch Type        None
>>>>>>      Usage Type        Data
>>>>>>     wMaxPacketSize   0x0008  1x 8 bytes
>>>>>>     bInterval        9
>>>>>> Â Â Interface Descriptor:
>>>>>>    bLength         9
>>>>>>    bDescriptorType     4
>>>>>>    bInterfaceNumber     1
>>>>>>    bAlternateSetting    0
>>>>>>    bNumEndpoints      1
>>>>>>    bInterfaceClass     14 Video
>>>>>>    bInterfaceSubClass    2 Video Streaming
>>>>>>    bInterfaceProtocol    0
>>>>>>    iInterface        0
>>>>>> Â Â Â VideoStreaming Interface Descriptor:
>>>>>>     bLength               15
>>>>>>     bDescriptorType           36
>>>>>>     bDescriptorSubtype          1 (INPUT_HEADER)
>>>>>>     bNumFormats             2
>>>>>>     wTotalLength            217
>>>>>>     bEndPointAddress          130
>>>>>>     bmInfo                0
>>>>>>     bTerminalLink            2
>>>>>>     bStillCaptureMethod         2
>>>>>>     bTriggerSupport           1
>>>>>>     bTriggerUsage            0
>>>>>>     bControlSize             1
>>>>>> Â Â Â Â bmaControls( 0) Â Â Â Â Â Â Â Â Â Â 27
>>>>>> Â Â Â Â bmaControls( 1) Â Â Â Â Â Â Â Â Â Â 27
>>>>>> Â Â Â VideoStreaming Interface Descriptor:
>>>>>>     bLength               27
>>>>>>     bDescriptorType           36
>>>>>>     bDescriptorSubtype          4
>>>>>> (FORMAT_UNCOMPRESSED)
>>>>>>     bFormatIndex             1
>>>>>>     bNumFrameDescriptors         2
>>>>>> Â Â Â Â guidFormat
>>>>>> {59555932-0000-1000-8000-00aa00389b71}
>>>>>>     bBitsPerPixel            16
>>>>>>     bDefaultFrameIndex          1
>>>>>> Â Â Â Â bAspectRatioX Â Â Â Â Â Â Â Â Â Â Â 0
>>>>>> Â Â Â Â bAspectRatioY Â Â Â Â Â Â Â Â Â Â Â 0
>>>>>>     bmInterlaceFlags         0x00
>>>>>> Â Â Â Â Â Interlaced stream or variable: No
>>>>>> Â Â Â Â Â Fields per frame: 1 fields
>>>>>> Â Â Â Â Â Field 1 first: No
>>>>>> Â Â Â Â Â Field pattern: Field 1 only
>>>>>>      bCopyProtect            0
>>>>>> Â Â Â VideoStreaming Interface Descriptor:
>>>>>>     bLength               30
>>>>>>     bDescriptorType           36
>>>>>>     bDescriptorSubtype          5
>>>>>> (FRAME_UNCOMPRESSED)
>>>>>>     bFrameIndex             1
>>>>>>     bmCapabilities          0x00
>>>>>> Â Â Â Â Â Still image unsupported
>>>>>>     wWidth               372
>>>>>>     wHeight              480
>>>>>>     dwMinBitRate         838992000
>>>>>>     dwMaxBitRate         838992000
>>>>>>     dwMaxVideoFrameBufferSize    786432
>>>>>>     dwDefaultFrameInterval     333333
>>>>>>     bFrameIntervalType          1
>>>>>> Â Â Â Â dwFrameInterval( 0) Â Â Â Â Â Â 333333
>>>>>> Â Â Â VideoStreaming Interface Descriptor:
>>>>>>     bLength               30
>>>>>>     bDescriptorType           36
>>>>>>     bDescriptorSubtype          5
>>>>>> (FRAME_UNCOMPRESSED)
>>>>>>     bFrameIndex             2
>>>>>>     bmCapabilities          0x00
>>>>>> Â Â Â Â Â Still image unsupported
>>>>>>     wWidth               320
>>>>>>     wHeight              480
>>>>>>     dwMinBitRate         838992000
>>>>>>     dwMaxBitRate         838992000
>>>>>>     dwMaxVideoFrameBufferSize    786432
>>>>>>     dwDefaultFrameInterval     333333
>>>>>>     bFrameIntervalType          1
>>>>>> Â Â Â Â dwFrameInterval( 0) Â Â Â Â Â Â 333333
>>>>>> Â Â Â VideoStreaming Interface Descriptor:
>>>>>>     bLength               11
>>>>>>     bDescriptorType           36
>>>>>>     bDescriptorSubtype          3
>>>>>> (STILL_IMAGE_FRAME)
>>>>>>     bEndpointAddress           0
>>>>>>     bNumImageSizePatterns        1
>>>>>> Â Â Â Â wWidth( 0) Â Â Â Â Â Â Â Â Â Â Â Â 744
>>>>>> Â Â Â Â wHeight( 0) Â Â Â Â Â Â Â Â Â Â Â 480
>>>>>>     bNumCompressionPatterns       1
>>>>>> Â Â Â Â bCompression( 0) Â Â Â Â Â Â Â Â Â Â 0
>>>>>> Â Â Â VideoStreaming Interface Descriptor:
>>>>>>     bLength               27
>>>>>>     bDescriptorType           36
>>>>>>     bDescriptorSubtype          4
>>>>>> (FORMAT_UNCOMPRESSED)
>>>>>>     bFormatIndex             2
>>>>>>     bNumFrameDescriptors         2
>>>>>> Â Â Â Â guidFormat
>>>>>> {55595659-0000-1000-8000-00aa00389b71}
>>>>>>     bBitsPerPixel            16
>>>>>>     bDefaultFrameIndex          1
>>>>>> Â Â Â Â bAspectRatioX Â Â Â Â Â Â Â Â Â Â Â 0
>>>>>> Â Â Â Â bAspectRatioY Â Â Â Â Â Â Â Â Â Â Â 0
>>>>>>     bmInterlaceFlags         0x00
>>>>>> Â Â Â Â Â Interlaced stream or variable: No
>>>>>> Â Â Â Â Â Fields per frame: 1 fields
>>>>>> Â Â Â Â Â Field 1 first: No
>>>>>> Â Â Â Â Â Field pattern: Field 1 only
>>>>>>      bCopyProtect            0
>>>>>> Â Â Â VideoStreaming Interface Descriptor:
>>>>>>     bLength               30
>>>>>>     bDescriptorType           36
>>>>>>     bDescriptorSubtype          5
>>>>>> (FRAME_UNCOMPRESSED)
>>>>>>     bFrameIndex             1
>>>>>>     bmCapabilities          0x00
>>>>>> Â Â Â Â Â Still image unsupported
>>>>>>     wWidth               372
>>>>>>     wHeight              480
>>>>>>     dwMinBitRate         838992000
>>>>>>     dwMaxBitRate         838992000
>>>>>>     dwMaxVideoFrameBufferSize    786432
>>>>>>     dwDefaultFrameInterval     333333
>>>>>>     bFrameIntervalType          1
>>>>>> Â Â Â Â dwFrameInterval( 0) Â Â Â Â Â Â 333333
>>>>>> Â Â Â VideoStreaming Interface Descriptor:
>>>>>>     bLength               30
>>>>>>     bDescriptorType           36
>>>>>>     bDescriptorSubtype          5
>>>>>> (FRAME_UNCOMPRESSED)
>>>>>>     bFrameIndex             2
>>>>>>     bmCapabilities          0x00
>>>>>> Â Â Â Â Â Still image unsupported
>>>>>>     wWidth               320
>>>>>>     wHeight              480
>>>>>>     dwMinBitRate         838992000
>>>>>>     dwMaxBitRate         838992000
>>>>>>     dwMaxVideoFrameBufferSize    786432
>>>>>>     dwDefaultFrameInterval     333333
>>>>>>     bFrameIntervalType          1
>>>>>> Â Â Â Â dwFrameInterval( 0) Â Â Â Â Â Â 333333
>>>>>> Â Â Â VideoStreaming Interface Descriptor:
>>>>>>     bLength               11
>>>>>>     bDescriptorType           36
>>>>>>     bDescriptorSubtype          3
>>>>>> (STILL_IMAGE_FRAME)
>>>>>>     bEndpointAddress           0
>>>>>>     bNumImageSizePatterns        1
>>>>>> Â Â Â Â wWidth( 0) Â Â Â Â Â Â Â Â Â Â Â Â 744
>>>>>> Â Â Â Â wHeight( 0) Â Â Â Â Â Â Â Â Â Â Â 480
>>>>>>     bNumCompressionPatterns       1
>>>>>> Â Â Â Â bCompression( 0) Â Â Â Â Â Â Â Â Â Â 0
>>>>>> Â Â Â VideoStreaming Interface Descriptor:
>>>>>>     bLength               6
>>>>>>     bDescriptorType           36
>>>>>>     bDescriptorSubtype         13 (COLORFORMAT)
>>>>>>     bColorPrimaries           0 (Unspecified)
>>>>>>     bTransferCharacteristics       0 (Unspecified)
>>>>>>     bMatrixCoefficients         0 (Unspecified)
>>>>>> Â Â Â Endpoint Descriptor:
>>>>>>     bLength         7
>>>>>>     bDescriptorType     5
>>>>>>     bEndpointAddress   0x82  EP 2 IN
>>>>>>     bmAttributes       2
>>>>>>      Transfer Type       Bulk
>>>>>>      Synch Type        None
>>>>>>      Usage Type        Data
>>>>>>     wMaxPacketSize   0x0200  1x 512 bytes
>>>>>>     bInterval        1
>>>>>> Device Qualifier (for other device speed):
>>>>>>  bLength         10
>>>>>>  bDescriptorType     6
>>>>>> Â bcdUSB Â Â Â Â Â Â Â 2.00
>>>>>>  bDeviceClass      239 Miscellaneous Device
>>>>>>  bDeviceSubClass     2 ?
>>>>>>  bDeviceProtocol     1 Interface Association
>>>>>> Â bMaxPacketSize0 Â Â Â Â 64
>>>>>>  bNumConfigurations    1
>>>>>> Device Status: Â Â 0x0000
>>>>>> Â (Bus Powered)
>>>>>>
>>>>>> This is what I get with lucview:
>>>>>>
>>>>>> luvcview 0.2.4
>>>>>>
>>>>>> SDL information:
>>>>>> Â Video driver: x11
>>>>>> Â A window manager is available
>>>>>> Device information:
>>>>>> Â Device path: Â /dev/video0
>>>>>> Stream settings:
>>>>>> Â Frame format: UYVY
>>>>>> Â Frame size: Â 372x480 (requested size 744x480 is not supported by
>>>>>> device)
>>>>>> Â Frame rate: Â 30/1 fps (requested frame rate 60 fps is not supported
>>>>>> by device)
>>>>>>
>>>>>>
>>>>>>
>>>>>> Thank you!
>>>>>> _______________________________________________
>>>>>> Linux-uvc-devel mailing list
>>>>>> [email protected]
>>>>>> https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>> _______________________________________________
>>>>> Linux-uvc-devel mailing list
>>>>> [email protected]
>>>>> https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
>>>>>
>>>>>
>>>>>
>>>>
>>> Best regards,
>>> Paulo
>>>
>>>
>>> _______________________________________________
>>> Linux-uvc-devel mailing list
>>> [email protected]
>>> https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
>>>
>>>
>>>
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