On Sun, 2002-01-27 at 16:50, NfoCipher wrote: > > > Did you set video norm correctly? I guess the phenomena caused by the > > mis-setting of video norm. For example, your v4l application is set to use > > PAL, while your video input device is NTSC. > > > > > Does PAL and NTSC have any effect on a composite input? Yes. Aside from the obvious issue of NTSC being 240 lines at 60Hz and PAL being 288 lines at 50Hz, the chroma subcarrier frequency is different. The latter will cause the colour information to go missing, giving you a monochrome picture. p.
