On Fri, 2001-10-19 at 15:33, Almond Wong wrote: > Hello, list. > > I managed to install bttv2 in RedHat 6.2. I'm using a BT878 card with 4 > composite port. I can see images with xawtv. I do have the following problem : > > 1. I use the webcam program came with xawtv, all the four channel get only > black screen. I noticed when I execute "modprobe bttv2", it return "bttv0: > model: BT878( *** UNKNOWN *** )", is this cause the problem ? > Most likely, yes. > ... > 3. Is it possible to grab images (jpeg) using all the four port at the same > time ? It seen that there is only one channel available if I grad images > continuously using the webcam program. Is there is a fix to avoid lock the > video device ? > You can just capture from one card input at a time. If you want to capture from several inputs you will have to switch channels, which will lead to lower capture speed (see a message from a thread from this list 17/10, I think for more details). > 4. If multiple card is required, how the modules.conf file need to be set ? > I can only use insmod and modprobe to activate the modules. > The driver is able to deal with several cards, so no modifications should be needed. > 5. Or, anybody can suggest a card which support multiple input ? Since I > want to support 8 input w/o using second PC. > You might need a card including several video decoders and dedicate one to each of the video inputs you want to capture from. Other chance is to use a bt878 (or other video decoder) with an external analog video multiplexer. Again, please read the above refered message for more explanations on this idea. > Have a nice weekend. Thank you! Miguel
