[MPlayer-dev-eng] 2 pass encoding - need explanation

Michael Niedermayer michaelni at gmx.at
Sun Feb 23 01:13:43 CET 2003


Hi

On Saturday 22 February 2003 20:39, Jonas Jermann wrote:
> Hi
>
> On Sat, Feb 22, 2003 at 04:23:55PM -0500, D Richard Felker III wrote:
> > BTW, you should try with vqscale=2 on the first pass and see if that
> > works well, rather than vqscale=5. The latter will encode the whole
> > first pass at very low quality so it probably won't estimate
> > complexity well.
>
> What about the encoding speed? Someone told me that it is the
> same for each quantizer (I doubt it). And what about quant=1? I
lower quant will be slower, as more bits must be encoded

> heard it shouldn't be used. Does this apply to 1. pass too?
no, its ok for pass 1, but i doubt that it will be usefull

[...]

Michael


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