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

Jonas Jermann jjermann at gmx.net
Sat Feb 22 20:39:57 CET 2003


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 
heard it shouldn't be used. Does this apply to 1. pass too?

And do small differences off quantizers matter for the 
estimation anyway? It doesn't encode yet, so my common sense tells 
me it will almost be the same result.

Best Regards
    Jonas


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