[FFmpeg-devel] [PATCH] Issue 543, clarification of -bt in docs
Mon Jul 21 13:18:33 CEST 2008
--- On Mon, 7/21/08, Michael Niedermayer <michaelni at gmx.at> wrote:
> > +For 1 pass BT specifies how hard the RC code should try to achieve CBR.
> I do not like the way this is said, because its not true and will misslead
> users into thinking low bt would achive CBR.
i used your exact words.
--- On Mon, 7/21/08, Jason Garrett-Glaser <darkshikari at gmail.com> wrote:
> Better description, if a bit long:
> "In 1-pass mode, bitrate tolerance specifies how far ratecontrol is
> willing to deviate from the target average bitrate value. This has
> nothing to do with minimum and maximum bitrate, but rather how close
> ratecontrol gets to the target bitrate. Lower tolerance results in
> worse quality."
it is long,
personally, i'd cut it shorter.
"In 1-pass mode, bitrate tolerance specifies how far ratecontrol is
willing to deviate from the target average bitrate value. Lowering tolerance too much has an adverse effect on quality."
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