Hi! > Looks like we're doing more or less the same > thing--I'm trying to multiplex up to 8 non-synched PAL > sources, but with an external, serial-controlled > switch. From what I understand about video, it's > impossible in this configuration to guarantee results > better than 12.5 fps. (I mean TOTAL frames.. so with > 4 cameras this would be 12.5/4 fps for each camera.) I tried to put the switching code in the IRQ handler and now the driver selects the channel, not the program. It's faster, but I still suffer from the old problem -> it's not stable. 1. It swaps the bottom/top fields 2. sometimes (very rare) there is a part of picture from another channel. How did you make it stable? Now the framerate is 8 fps/channel but it's not stable, the fields are often swapped. Thx, Gabor
