Hi , I have the same problem that you explained below. Often the even and odd fields are swapped and the image result flickering. I would like to change some instructions in the driver so i'm trying to understand the very obscure bttv code. By the way, it is really difficult because the author sadically didn't write any useful comment in it. I think that this should be a bad prartice for the opensource code and programmers. But this is life. So I ask if you can explain me how to disable the agc and the adc . I have tried the insmod option "ag_crush=0" but seem to me that has no effect. After a switch I always see a great saturation of the input. As a first thing I would like to reduce this effect.Then I'll try to acquire field only in a fixed order. Thank a lot in advance Alex >I have been working on this for a long time. The problem really never goes >away. You get the top/bottom switch, and also frame tearing intermittently >when consecutive signals go really badly out of sync. The external switcher >is the solution I will be looking at next. My stable framerates are >considerably lower than you are achieving as I have low quality cameras to >deal with that drift in and out of sync. Without the external switcher, I am >getting 6 to 8 *total* fps. Basically, every time I switch inputs, I have to >wait a while for the chip to stabilise. My guess is it is turning its ADC >off and on or something... maybe it just has really poor syncing.. >The cards I have seen that achieve closer to 25/x fps per camera all have >LM1881 and a video mux. And those components are cheap, and the driver >changes aren't too bad from what I can see. -- Alessandro Bonvicini - Synervis "L'idea è la moneta del futuro" Seth Godin (Unleashing the ideavirus)
