I don't mean default, just that it's on that (default sais 0), maybe i changed it a long time ago? (i always had the impression the settings were not remembered)
On 12/19/06, Maarten Maathuis <[EMAIL PROTECTED]> wrote: > temporal_filter 8 seems to be default here. > > Just wanted to let you know. (using ivtv 0.9.1) > > Maarten. > > On 12/19/06, Trevor Bradley <[EMAIL PROTECTED]> wrote: > > > > > > > > > > I've just discovered the magic of the temporal filter on the Hauppauge PVR > > cards (see my previous post). In brief, appears to clean up a noisy analog > > signal to give a cleaner mpeg recording. However, I note that there appear > > to be several other filters. If I run "v4l2-ctl -l | grep filter" on my > > machine, I appear to get parameters for: > > > > > > > > spatial_filter_mode (0), > > > > spatial_filter (0) > > > > spatial_luma_filter_type (1) > > > > spatial_chroma_filter_type (1) > > > > temporal_filter_mode (0) > > > > temporal_filter (8, was 0) > > > > median_filter_type (0) > > > > median_luma_filter_minimum (0) > > > > median_luma_filter_maximum (255) > > > > median_chroma_filter_minimum (0) > > > > median_chroma_filter_maximum (255) > > > > > > > > the numbers in brackets are my current settings for these parameters. > > > > > > > > By simply changing my temporal_filter from 0 to 8, I saw a dramatic > > improvement in image quality. This gets me thinking that modifying these > > other numbers might be useful, but I've not found any documentation > > whatsoever on these filters, and I'm hoping someone might be able to > > enlighten me. > > > > > > > > Can anyone explain what the ivtv spatial, temporal, and median filter > > settings actually do? Are they hardware or software filters? What's the > > difference between the filter and the filter type? What settings are > > appropriate for a TV? What numbers are too high? (I noticed that a > > temporal filter setting of 10 caused mpeg recording errors, and a max > > setting of 31 generated some bizarre visual effects). Should this > > information be documented in the wiki? > > > > > > > > This question belongs in ivtv-users, but the people who would be able to > > answer the question are likely lurking in ivtv-devel. Hopefully some of the > > developers read both groups. > > > > > > > > Trevor Bradley > > > > Surrey, BC. Canada > > > > > > _______________________________________________ > > ivtv-users mailing list > > [email protected] > > http://ivtvdriver.org/mailman/listinfo/ivtv-users > > > > > _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
