ZoneMinder Forums

Posted: **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?

Posted: **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!

ZoneMinder Forums

How To Determine Webcam Resolution

How To Determine Webcam Resolution