On 7-Dec-05, at 9:46 PM, Dave Packham wrote:

How do you turn off DNR on the 250's?

from ivtv-0.4.0/doc/video-quality.txt:

--- cut here ---

dnr_mode:
        0:  spatial and temporal noise removal filters
        1:  temporal only
        2:  spatial only
        3:  no noise filter

dnr_spatial:
        0..16:  0=no filtering  16=strongest filter
              (horizontal only, smoothing/lowpass)
dnr_temporal:
        0..16:  0=no filtering  16=strongest filter
              (inter-frame (time dimension), averaging)

--- cut here ---

so...

$ ivtvctl -c dnr_mode=3
$ ivtvctl -c dnr_spatial=0
$ ivtvctl -c dnr_temporal=0

The MPEG-2 settings I am curious about are:

framespergop
gop_closure
bframes

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