Bernhard Praschinger wrote: > Hallo >> Also, you will notice, in the picture of the woods, that the trunks of >> the trees are not affected by the problem. The rocks are less affected >> than other objects. > It seems that it is hard to get a single color on larger areas. > Do you also see that problem when you watch the Video ? Or do you only > see it on the recorded video. > > Which card and command do you use for recording ?
The problem is always present. I've been using a DC30+ for more than one year with no problem, then suddenly the problem appeared. I thought it was the card broken: actually, the video composite input doesn't work any more. But now I have also another card, a DVB-S with v4l capabilities, and that card has exactly the same problem! I've always been using lavrec to record, and xawtv to watch the input, and it shows the problems in "real time", with both cards. lavrec doesn't work at all on the new card. I also tried streamer: same results with both cards. The only good results are from the DVB input, which allows me to record MPEG-TS files that don't show the same problem. But I guess this function doesn't share much hardware and software with analog capture. > >> The color seems to have something to deal with the problem. You will >> notice that yellow hair of the girl, and her red jacket, show the >> pattern in a most evident way. Grey and white objects don't seem to be >> affected at all. > It seems to me the the Luma is ok, but chroma has a problem. > Normaly you can help if you use a SVHS Signal because there the card > does not need to do the Luma Chroma separation. I also tried with a brand new digital camcorder with S-Video output. Still same results. But I guess your suggestion is very interesting, even thought I can't figure out what could have happened. Some months ago I had to change the mother board, I think on September. On November I posted a message here because DC30+ was not working (then it turned out that just composite video plug was damaged). Only after November 6 I started to notice the "zig-zag pattern problem", but maybe it was around before and I didn't notice it. I don't think so, because I always look very carefully at the recordings before converting them to Xvid of what else. > >> One more thing: the picture are from a satellite receiver (analog >> output), but exactly the same happens with every other analog source; >> also, it's not a matter of composite video, S-video or such: it >> happens whatever connection from source to card is made. > Typically a digital satellite receiver with analog SVHS output has a > very good quality. And that kind of problem should not happen. What kind > of cables do you use, how long are they ? The cable are the same I've been using without any problem since I bought the DC30+ back in 2006. I use a 35 meters long composite video that connects my satellite receiver to the card(s). The new one has a working composite video input, but the problem is still there wherever I plug the cable. Clearly, I have also a cable that converts from composite video to S-Video to connect the composite video output of the receiver to the S-Video input of the cards. But definitely I don't think it's a matter of cable: I tried every possible combination, nothing changes at all. > > auf hoffentlich bald, Many thanks! > Berni the Chaos of Woodquarter > > Email: [EMAIL PROTECTED] > www: http://www.lysator.liu.se/~gz/bernhard > > ------------------------------------------------------------------------ > -- Andrea ------------------------------------------------------------------------- This SF.net email is sponsored by: Microsoft Defy all challenges. Microsoft(R) Visual Studio 2008. http://clk.atdmt.com/MRT/go/vse0120000070mrt/direct/01/ _______________________________________________ Mjpeg-users mailing list Mjpeg-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/mjpeg-users
