could we compile torchVision and torchAudio cpp to javacpp && how to use javacpp compile whole cpp project with multiple cpp files into java/scala

[mullerhai]

now we have use javacpp pytorch write one pytorch model framework in scala ,but we also need torchvision and torchAudio, now these two library also has cpp binding ,so we think javacpp also could compile them to java/scala. https://github.com/pytorch/vision/blob/main/torchvision/csrc/vision.cpp https://github.com/pytorch/audio/blob/main/src/libtorchaudio ,If javacpp could make them compile to java/scala ,will make big powerful for scala deeplearning. I only know use java -jar javacpp-**jar could compile one cpp file to java, but multiple cpp files in whole cpp project use javacpp to generate one dll so file and into java invoke I wonder you can teach me. thanks

[mullerhai]

@saudet hi ,could somebody give a feedback to me ,thanks ,very need torchvision in java

[saudet]

Torchvision doesn't have a C++ API. You'll need to use it from Python anyway.

[ivolucas]

My work around for loading modules that need Torchvision operations:

Build Torchvision following the cpp example](https://github.com/pytorch/vision/tree/main/examples/cpp)

Manually load the lib after the pytorch

static {
        Loader.load(torch.class);
        System.load("/path/to/your/build/libtorchvision.so");
}

This way we can run save models that use Torchvision

Maybe we can add a sub modules to pytorch for Torchvision and TorchAudio to do the build and package the libs

[mullerhai]

do you use JavaCPP generate glue code for torchvision

[ivolucas]

No just the lib that is generated

[mullerhai]

My work around for loading modules that need Torchvision operations:

Build Torchvision following the cpp example](https://github.com/pytorch/vision/tree/main/examples/cpp)

Manually load the lib after the pytorch

static {
        Loader.load(torch.class);
        System.load("/path/to/your/build/libtorchvision.so");
}

This way we can run save models that use Torchvision

Maybe we can add a sub modules to pytorch for Torchvision and TorchAudio to do the build and package the libs

@saudet please consider generate javacpp-torchvision

[ivolucas]

@saudet

I made one pull request to add pytorch vision.

I don't know if it is the best approach but it is working for my use case.

#1599

[mullerhai]

@saudet

I made one pull request to add pytorch vision.

I don't know if it is the best approach but it is working for my use case.

#1599

how about javacpp-pytorch-audio ? could compile it too?

[ivolucas]

I think you can. Give it a try.