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cameradriverdirectshow

Microsoft UVC driver streaming RAW data with web camera instead of Compressed data

As per mentioned link this link :
My Logitech camera will stream I420 and RGB24 with Logitech driver .

But ,With the Microsoft UVC driver, camera should stream YUY2 and MJPG formats. But still I am getting RGB24 type of data . PFB the snap shot of the camera driver in my laptop enter image description here

 I am new to the driver level side and don't know more about drivers .

My understanding is I am having Microsoft UVC driver got installed for camera , but still camera is streaming with RGB24 type of RAW data .

I am using Directshow to capture the camera data . Is there any software/tool by which I can check the type of data from USB camera devices.

CAN YOU PLEASE COMMENT ON MY UNDERSTANDING !!

Solution

  • You can check camera capabilities using DirectShowCaptureCapabilities tool:

    The app gives a textual representation of capabilities available through DirectShow API, where you can get the information in question.

    In particular, some output is presented here, posted by tool users. Let's look at USB2.0 UVC HQ WebCam output:

    • .subtype: FourCC MJPG

    • .subtype: FourCC YUY2

    The lines above are taken from media types Motion JPEG and raw YUY2 respectively.