How To Determine Webcam Resolution

chiefchief · Post by **chiefchief** » Thu Apr 16, 2009 9:18 pm

I was just curious if there were any linux tools that would allow me to interact with a plugged in webcam and determine it's maximum resolution.

EDIT: Found a command from the wiki to list my capture card's settings

Code: Select all

zmu -d <device_path> -q -v

I ran the code on my system and returned the following:

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Video Capabilities
  Name: BT878 video (ProVideo PV143)
  Type: 45
    Can capture
    Does teletext
    Overlay onto frame buffer
    Can clip
  Video Channels: 4
  Audio Channels: 0
  Maximum Width: 768
  Maximum Height: 480
  Minimum Width: 48
  Minimum Height: 32
Window Attributes
  X Offset: 0
  Y Offset: 0
  Width: 320
  Height: 240
Picture Attributes
  Palette: 1 - Linear greyscale
  Colour Depth: 8
  Brightness: 32768
  Hue: 32768
  Colour :32768
  Contrast: 32768
  Whiteness: 0
Channel 0 Attributes
  Name: Composite0
  Channel: 0
  Flags: 0
  Type: 2 - Camera
  Format: 1 - NTSC

So I have a maxium width and height of 768x480, but my windows is at 320x240. Does this mean ZM can only cap at the lower resolution?

chiefchief · Post by **chiefchief** » Fri Apr 17, 2009 7:43 am

Just tested this out. I don't know what the "window" value means, but the max resolution is definitely the larger number. This has made my Zone Alarm look so much better. YEA!