Re: too mach distortion on color gradient
[email protected] Thu, 7 Oct 2010 17:04:40 -0400
| Newsgroups | gmane.comp.multimedia.ogg.theora.devel |
|---|---|
| Message-ID | <[email protected]> |
Hello, I've had a ook at these; the problem isn't banding actually, but blocking (it looks like banding as the loop filter has smoothed the boudaries). Very similar to the effect in the 'sunflower' clip from the demo updates. First off, Ptalar does handle these cases better than Thusnelda did. Second, the whole problem stems from the lowest AC coeffs not getting enough bits, and I'd expect that to be a result of coarse quantizers. What were the exact command lines used to encode? I'm only used to seeing this effect in fairly low bitrate encodes. Monty