On Fri, Sep 19, 2003 at 10:47:35PM -0700, Steven M. Schultz wrote:
>
> 4 encodings were done using -N of 0, 0.5, 1.0 and 1.5 (and 2
> different -q values, and using yuvdenoise in -f and -l modes).
> Quite an exhaustive (and time consuming ;)) set of runs.
> ...
I have some more real world numbers to report:
The only difference between these files was different -N values. All
other denoise/mpeg2enc parameters were identical.
delta from delta from
-N Size in bytes adjacent lower -N 0.0
-N value
0.0 2,177,741,853
0.1 2,112,185,457 65,556,396 65,556,396
0.3 1,946,169,140 166,016,317 231,572,713
0.4 1,888,393,867 57,775,273 289,347,986
0.5 1,789,601,407 98,792,460 388,140,446
The setting of -N does work nicely to fine tune a files resultant
size, but clearly it's also a non-linear function as you already
suggested it may be in an earlier email.
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