On Sat, Feb 18, 2017 at 08:37:26PM +0100, Paul B Mahol wrote:
> On 2/18/17, Steinar H. Gunderson wrote:
> > The quantization table is stored in the natural order, but when we
> > access it, we use an index that's in zigzag order, causing us to read
> > the wrong value. This causes artifacts, espec
On 2/18/17, Steinar H. Gunderson wrote:
> The quantization table is stored in the natural order, but when we
> access it, we use an index that's in zigzag order, causing us to read
> the wrong value. This causes artifacts, especially in areas with
> horizontal or vertical edges. The artifacts look
