Cannot compile butterflow about sminterpolate HOT 4 CLOSED

Hello.

The problem is that Arch Linux has upgraded the opencv package to 3.x, while butterflow still depends on version 2.

What you will need to do is to remove opencv and replace it with opencv2 before building butterflow. There's a package in the AUR that you can use to install opencv2 here. Make sure to remove all packages that depend on opencv, like opencv-samples, before installing opencv2. This will save you the trouble of re-compiling the package, which takes a long time, if the install fails.

By the way, the version of butterlow in the AUR is broken. I recommend building the master version from source because it's the only version that I can confirm that works on Arch at this time:

from sminterpolate.

Hi, sorry for the late reply, I didn't know you answered so quickly. I've done what you mentioned, and I got the program built and compiled outside the virtual environment.

One thing though, I'm trying to re-encode this short (30 second) video at 2x the playback rate, but so far it's still been encoding. I get the message, "[butterflow.WARNING]: not using opencl, ctrl+c to quit
". Doing "butterflow -d" does list my device, and I haven't forced it to use software rendering. I assume that's why there's little to no progress even though it's maxing out two cores. Is there any way I can force it to use opencl? I do have python(2)-pyopencl and opencl-mesa (I'm using an AMD card).

Thanks again.

from sminterpolate.

Yeah, it's not using OpenCL. Maybe it auto-picked your CPU instead of your GPU? Try running export OPENCV_OPENCL_DEVICE=:GPU; butterlow -r2x <your video>.

If that doesn't work, take a look at the Arch Wiki page on GPGPUs for tips on how to get a functional OpenCL environment working on your machine. It says that opencl-mesa is under development so that may be your problem. There's amdapp-sdk that you can try installing, it's better supported but it's proprietary/closed source if that concerns you.

from sminterpolate.

Unfortunately, the same error persists. I've tried the amdapp-sdk package from the AUR, but it requires opencv3 to compile, which I think you mentioned doesn't work for this program.

Anyway, the initial issue was fixed, so I guess I'll close this and maybe ask if I can try again. If there's anymore information you need, I can provide it. Thanks very much for your time!

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