Neologism wrote: > I'm now very happily recording my favorite episodes using a Pinnacle > DC10+ and the mjpegtools from a digital satellite service (Dish Network) > with an s-video input (finally!). > > However, now that I'm in the realm of digital recording, I'm tantalized > by the possibilities: specifically, better quality. I think I'm ready > for something better than the DC10+. I always record at the highest > quality settings, but I can see the MJPEG artifacts. Please, edit zoran.c file, change the lines (line 1572 in cvs-latest): /* Target compressed field size in bits: */ size = size * 16; /* uncompressed size in bits */ size = size * zr->params.quality / 400; /* quality = 100 is a compression ratio 1:4 */ to /* Target compressed field size in bits: */ size = size * 16; /* uncompressed size in bits */ size = size * zr->params.quality / 256; /* quality = 100 is a compression ratio 1:2.56 */ then recompile the driver, reload it and try to capture with different quality settings in lavrec. > I can even see > them (perhaps less clearly, but that may be my imagination) just during > pass-through. That is strange because in pass-through mode raw uncompressed digital data is sent from decoder to encoder directly. > If someone can tell me the best way to extract a frame > I'd be glad to post one to the list to point out what I mean. Probably lavtrans may help. > So I'm wondering what the next step up from a DC10+ may be. Would it be > a frame grabbing board without any hardware compression, If you are planning to capture uncompressed video to the disk, don't forget to buy RAID controller ;-). > I > don't have any experience with DV, but I'm guessing it's higher quality > than the DC10+. DV may provide higher quality indeed. However I think DV was designed to digitize video right from the source when noise level is still low enough, I'm not sure how it behaves with slightly poor signal quality if it is taken from TV or VCR... Any information regarding this is appreciated. -- Serguei Miridonov
