4.3 Frequently asked questions and answers
Cam pictures are downloaded, but not displayed.
This is almost certainly a problem with your datatypes. I recommend using one of the following three jpeg datatypes from aminet:
Other jpeg datatypes are buggy and contain obsolete jpeg code. For example the tower jpeg datatype distributed with the CyberGraphX V43 picture.datatype doesn't handle progressive jpegs, and many webcam jpegs are progressive.
I use the akJFIF datatype and the pictures are completely black.
akJFIF is configured for HAM output. Start Prefs/akJFIFPrefs and change this to Floyd-Steinberg or Ordered dithering.
Where's the sound?
I'd love to add support for streaming formats with sound, but the popular ones like RealVideo are not documented, so there is no way to do it...
Picture display is slow.
On my setup, with CyberGraphX 3 on 060/CV64 hardware, the CyberGraphX V43 picture.datatype and akJFIF is the fastest combination I have found.
CyberGraphX Video Layers doesn't work.
First of all, note that CyberGraphX only supports one video layer on the screen at the time. WebVision will automatically fall back to normal mode if it can't create the video layer. Secondly, this feature was added "blindly", i.e. I don't have a Picasso IV or CyberVision64/3D board to test it with myself, therefore it may contain bugs.
I use a proxy, and the picture is reloaded every time, even though it hasn't changed.
This happens because your proxy strips the If-Modified-Since header that WebVision sends. There's nothing I can do about it.
This webcam doesn't work!
Webcams are flimsy creatures, disappearing and reappearing. If the URL has changed, do tell me about it.
Where can I find more webcams?
On the world wide web. Here's a couple of starting points: