Matt G. (matt_g_@xxxxxxxxxxx): > Has anyone done testing of V4L-supported cards, and posted the > results? I've been thinking about this, and I really like the idea of > working on an app that generates test patterns and then analyzes them. > You could do all sorts of things, like testing the S/N, frequency > response, gamma, THD, superblack support, and frame cropping. With > that, you could even do auto-calibration! [...] I don't get it. You mean, have two computers, one with TV output, the other with TV input, and have one generate test patterns that show up on the other? It would be hard to tell which end had the problem. I'm not sure how you'd feed the capture card input from the box itself, that's all. You could also try and analyze some of the DVD calibration discs from a hardware DVD player (I've been meaning to do that), but you're partly at the mercy of the hardware player there, and DVD content is only 4:2:0, so that makes it difficult to test some things... > > I'm considering purchasing a high quality VCR with TBC and stuff > > that outputs S-Video for VHS recording. Maybe it could be a tuner > > too... (anyone else have any recommendations?) > > Recommendations for what? The VCR? I have a JVC HR-S9600U, and I'm > about to get a Panasonic AG-1980. They both have 3D Y/C separation, > comb filters, DTBC and DNR. People say lots of good things about the > anti-ghosting tuners in the JVC 9xxx series, and they're cheap now, > too. Otherwise, the Panasonic is a better VCR, but like 2.5 times as > expensive. Thanks. Using the S-Video output from that would help alot for recording, as I bet their comb filter beats the bt878's hands down. > > and that's what my recording app uses. Wanna help? Of course I'm > > looking for help with my app, but there are lots of other recorder > > apps you could help with too. > > Hmmm... everyone seems to want to write apps. I like well written > apps, but get easily annoyed when they're clearly not built on a > robust, scalable infrastructure (inevitably, I will run into some > annoying limitation). I like building scalable infrastructure and > wrapping it with command-line tools, so that I can script up whatever > sort of automation I want. Windows/Mac people just don't seem to get > that. They tend to be content with the model that every app has its > own scripting language, and lives in its own universe. Where do you think the infrastructure is lacking? -- Billy Biggs vektor@xxxxxxxxxxxx
