Hi Daniel!
I asked about this
<http://lists.openimageio.org/pipermail/oiio-dev-openimageio.org/2018-December/001337.html>
back in 2018, and Larry responded
<http://lists.openimageio.org/pipermail/oiio-dev-openimageio.org/2018-December/003553.html>with
a super awesome detailed and helpful reply, which I didn't respond to
because I was working 100 hour weeks at the time.
At the time I was trying to build a tool using OpenColorIO and
OpenImageIO, which would take a scene-referred exr image sequence and
encode a quicktime movie using ffmpeg. Of course ffmpeg does not
properly support exr image sequences, so it is necessary to either
pre-process the images with something like oiiotool, and then encode
that intermediate image sequence into a quicktime movie using ffmpeg, OR
to do something like your command, piping the output of oiiotool into
ffmpeg, to avoid the intermediate image sequence.
I was able to accomplish something functional
<https://github.com/jedypod/generate-dailies> using pipes in python, but
it would be much simpler (and maybe faster) if you could do it purely on
the commandline.
I would still be very interested to see a way to acomplish this
functionality using oiiotool.
If I remember well, the generate-dailies tool mentioned above just
passes raw 16 bit int byte data to ffmpeg and it works well, so maybe
the complexities around tiff output mentioned by Larry's response could
be avoided.
Hope this helps!
-Jed
On 1/20/21 5:16 AM, Daniel Flehner Heen wrote:
Hi!
Is oiiotool able to pipe output into another application? I can't see
it mentioned in help or rtd.
simplified example:
oiiotool source_image_acescg.#.exr -colorconvert acescg out_srgb -o -
| ffmpeg -i pipe:0 output_movie.mov
Thanks!
--
-Daniel
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