Well, chances are good that it was a problem in OIIO, but something that is
long since fixed. Please don't hesitate to let me know if there's any evidence
that it's still a problem in recent versions. (And for Pete's sake, get
yourself off 1.5! So much has been fixed since then, including performance.)
-- lg
> On Apr 1, 2019, at 10:31 AM, Alex Suter <[email protected]> wrote:
>
> Chances are good the problem is on my end. If I can narrow it down to
> something that's not me I'll report back.
>
> Thanks for the great library!
>
> On Sat, Mar 30, 2019 at 10:54 AM Larry Gritz <[email protected]
> <mailto:[email protected]>> wrote:
> That's pretty old. I'm not even sure I have the ability to easily build 1.5
> any longer (it lack patches from later releases that are probably needed to
> make it work with whatever set of libraries and compilers we have now).
>
> I think you're doing the right thing. Do you have the ability to try your
> test with 2.0 or master (or even 1.8)? This feels like something long since
> fixed, but if it's still broken, I'd sure like to fix it right away.
>
> -- lg
>
>
>> On Mar 29, 2019, at 7:02 PM, Alex Suter <[email protected]
>> <mailto:[email protected]>> wrote:
>>
>> Hi,
>>
>> Apologies for the beginner questions. Also, for various reasons, I'm using
>> OIIO 1.5.14 which might be the actual problem.
>>
>> I've got a multipart exr image, and I'm trying to get all of the channel
>> names from the many subimages in python, and the data from a particular
>> channel in C++.
>>
>> import OpenImageIO as oiio
>> buf = oiio.ImageBuf(filepath)
>> print buf.spec().channelnames # prints channel names from the first subimage
>> print buf.nsubimages # prints 1
>>
>> I expected nsubimages to report 11, in my example. The sub images are
>> definitely in the file. Do you know what I'm doing wrong?
>>
>> Similarly on the C++ side I have something like:
>>
>> int sub = 0;
>> OIIO::ImageInput* imgInput = ...
>> while (imgInput->seek_subimage(sub, miplevel, spec))
>> {
>> std::cout << spec.nchannels << "\n";
>> ++sub;
>> }
>>
>> It only reports on a single subimage.
>>
>> Thanks for any tips. I appreciate it.
>>
>> -- Alex
>>
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>
> --
> Larry Gritz
> [email protected] <mailto:[email protected]>
>
>
>
>
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>
>
> --
> |o| Alex Suter |o| R&D SF |o| x62368 |o|
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--
Larry Gritz
[email protected]
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