[FFmpeg-devel] [PATCH] Issue 543, clarification of -bt in docs

tripp eliared
Mon Jul 21 13:18:33 CEST 2008


hi,

--- 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."


tripp


      




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