Imf::OutputFile Produce binary different files

[haotj]

I use both
OutputFile (const char fileName[], const Header &header, int numThreads = globalThreadCount());
OutputFile (OPENEXR_IMF_INTERNAL_NAMESPACE::OStream &os, const Header &header, int numThreads = globalThreadCount());

I have a implemented pure virtual functions of OStream with a big buffer(memset to 0). Once it's finished, I write the buffer to disk which produces identical image to the const char* fileName[] version. However, when I tried to do a binary diff, I see from 0x00000130 to 0x0000230, they are different.

Now, both images "look" the same, and have same pixel values, I'm not sure why the data is different. The output file using the fileName ctor, actually produces identical binaries, so I don't think it's caused by un-initialized memory.

[oleksiivorobiov]

Make sure you dump file on disk after OutputFile destructor call. It writes this values inside destructor

[cary-ilm]

Looking into the OpenEXR issue backlog. Is this still an issue? Does the suggestion resolve it?

[cary-ilm]

Closing the issue for now, feel free to re-open or file a new issue if you need further help.