Is this fix likely to matter for 250's as well? I no longer use my 350 for capture for various reasons (though I do still use it for display), but some maybe 5%? 1%? of my 250 captures display ghosting---sometimes slight, sometimes pretty objectionable. In some captures, it persists for the entire capture; in others, I can see a visible one-frame flash and -then- the rest of the capture is ghosted until the stream is closed. Typically there are faint vertical black/gray bands as well, most-obviously if the source is letterboxed because they show up against the uniform background; typically three are 3-5 of them across the width of the screen.
The ghosting typically manifests as the image contents (or perhaps just edges, e.g., the derivative of the image) shifted sideways about 1/4 of the width of the screen or so. Really does look for all the world like the typical multipath ghost from RF days. I'm still running 0.4.1 on those (because of various chicken & egg issues that would have required me to update absolutely -everything- on the box to move forward to modern ivtv and modern MythTV---I'm capturing with MythTV 0.18.1), but sometime soon I expect to have a clone system set up to do testing using bleeding-edge everything and could test then. (I also expect at some point to have a second 350 available for testing, and I could try capturing on that.) Of course, maybe 250 ghosting was fixed in the years since 0.4.1 and it'll go away on its own once I'm able to upgrade. Dunno. Note that all of this is baseband capture from an STB, since I no longer have any sources of RF analog available. (Well, I guess I might have a VCR or DVD player with RF channel 3/4 output.) P.S. I -do- recall an obnoxious flickering of the upper 1/4 of the screen that was often provoked by a loss of sync on the input---that was in the days when I took RF directly from a cable, and one of our local PBS stations had a tendency to transmit badly-corrupted bursts of video (also really badly overmodulated, so much so that white areas caused audio buzzing) a few times a day. I don't know offhand if it -only- manifested on 350 capture, and I rather suspect not. (I could possibly research it if it mattered, based on my records.) I haven't seen it in quite some time, but I don't know if it's because I stopped capturing on my 350 or because I switched to STB-only sources; the two happened at pretty much the same time, I think. _______________________________________________ ivtv-devel mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-devel
