Dear OIIO Devs, since this is my first post here, I would like to thank you for this superb tool!
I'm building a VFX pipeline and I need to convert ProRes 4444 files to exr sequences. FFmpeg does the job, but color management is not very well documented, OpenColorIO is not supported and I could not even get a intermediate TIF sequence that I can convert to EXR with a color output that I can control with consistently. So I tried to use oiiotool for the job, but when I run `oiiotool test.mov -sisplit -o:all=1 test.%d.exr` oiiotool hangs. It loads all the CPUs to 100% (mostly waiting for io) and starts to fill the RAM, rather slowly. My uneducated guess is that oiio uncompresses all the subimages to RAM before it writes them out to disk. Even if my assumption is right it is prohibitively slow, so slow in fact that I didn't even have the time yet to test my theory. (My 516 frames long 2K test file is running for 35 minutes now) My question is that is this the intended behavior (for now of course) or I'm doing something wrong? Could it be a problem with my build (oiio 2.0.7, gcc 8.2.1, ffmpeg 4.1.1, Arch Linux)? If oiiotool is not production ready in this sense, then maybe you have some information on integrating ffmpeg into an ocio pipeline, and you can point me to the right direction, which I would really appreciate. Tanks a lot, Mate Birkas
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