Re: bug in DWAA and DWAB compression schemes?

Karl Rasche <[email protected]> Fri, 29 Mar 2019 09:09:51 -0700
Newsgroups gmane.comp.video.openexr.devel
Message-ID <CAD5HwvSLY1+WLMVLq8tGkB8Pow7CDu6R1OO1BmQ3de0AvEWNrw@mail.gmail.com>
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>when an exr is written using either the DWAA
> or the DWAB compression scheme, with a 3-
> channel image at least, any channel value
> over approx 2^16 seems to get output as 0. I
> wondered if this behaviour was intentional

Not intentional afaik - sounds like a bug.


>

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<div dir=3D"auto"><br></div><div><div dir=3D"auto">&gt;when an exr is writt=
en using either the DWAA=C2=A0</div><div dir=3D"auto">&gt; or the DWAB comp=
ression scheme, with a 3-</div><div dir=3D"auto">&gt; channel image at leas=
t, any channel value=C2=A0</div><div dir=3D"auto">&gt; over approx 2^16 see=
ms to get output as 0. I=C2=A0</div><div dir=3D"auto">&gt; wondered if this=
 behaviour was intentional=C2=A0</div><div dir=3D"auto"><br></div><div dir=
=3D"auto">Not intentional afaik - sounds like a bug.</div><br></div><div><d=
iv class=3D"gmail_quote"><blockquote class=3D"gmail_quote" style=3D"margin:=
0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir=3D"ltr"><b=
r></div></blockquote></div></div>

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