[MPlayer-users] Re: variable bitrate, fixed quality

[D Richard Felker III]

On Thu, Jul 10, 2003 at 01:55:00PM -0500, Jonathan Rogers wrote:
> [Automatic answer: RTFM (read DOCS, FAQ), also read DOCS/bugreports.html]
> Nikolaus Rath wrote:
> >Yes, that's clear. But what kind of value is "tex" Is it in a certain
> >range (0 - 1)? What happens if I set vrq_eq=0.5? What the manpage
> >actually says is that a return value of 1 means constant bitrate and
> >some other value ("tex") means constant quality. Nothing more. You
> >can't really customize the function with these informations. What is
> >the allowed range (and scale) of return values and how do they
> >influence encoding? What scale and in what range are the mentioned
> >variables?
> 
> I agree that the manpage doesn't have enough information to understand 
> the whole thing, but it does have enough to understand how to use the 
> default equation. From what Rich has said, it sounds like it's the 
> derivative of the user specified function that matters.

No, my understanding is that it's the order of growth that matters.
I.e. 2*tex and tex should do the same thing. However like I said I may
just not understand it at all, but I definitely didn't mean to say it
was the derivative that mattered.

Rich