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title: Ubuntu-PPA Install ...

Getting Started: Ubuntu-PPA Install

Install via PPA repository (Ubuntu)

The nnstreamer releases are at a PPA repository. In order to install it, use:

$ sudo apt-add-repository ppa:nnstreamer
$ sudo apt install nnstreamer

Additional plugins available

  • nnstreamer-caffe2 : Allows to use caffe2 models in a pipeline. (From pytorch 1.3.1 by default)
  • nnstreamer-cpp : Allows to use C++ classes as filters of a pipeline.
  • nnstreamer-cpp-dev : Required to build C++ class-filters.
  • nnstreamer-dev : Required to build C function-filters and to build your own nnstreamer plugins.
  • nnstreamer-edgetpu : Allows to use edge-TPU in a pipeline.
  • nnstreamer-flatbuf : Allows to convert-from and decode-to flatbuf streams.
  • nnstreamer-misc: Provides additional gstreamer plugins for nnstreamer pipelines. Included plugins: join.
  • nnstreamer-openvino : Allows to use OpenVINO (Intel), enabling Movidius-X.
  • nnstreamer-protobuf : Allows to convert-from and decode-to protobuf streams.
  • nnstreamer-python2 : Allows to use python2 classes as filters of a pipeline.
  • nnstreamer-python3 : Allows to use python3 classes as filters of a pipeline.
  • nnstreamer-pytorch : Allows to use Pytorch models in a pipeline. (From pytorch 1.3.1 by default)
  • nnstreamer-tensorflow : Allows to use TensorFlow models in a pipeline. (From tensorflow 1.13.1 by default)
  • nnstreamer-tensorflow-lite : Allows to use TensorFlow-lite models in a pipeline. (From tensorflow 1.13.1 by default)

For a full list of nnstreamer plugins run:

$ apt-cache search nnstreamer

If you want to use different versions of TensorFlow or PyTorch

Safe method (need rebuild)

You need to rebuild nnstreamer's corresponding subplugins (e.g., nnstreamer-tensorflow) with the neural network framework version you want to use.

  • You may configure/update, build with pdebuild/debuild, and install its resulting .deb packages Ubuntu: Pbuilder / Pdebuild.
  • You may configure/update, build with meson/ninja, and install binaries with ninja Linux generic: build with meson and ninja: For advanced users with feature customization.
  • Be careful on install paths and duplicated installation. You need to check the configuration (/etc/nnstreamer.ini and env-vars)

Unsafe method (no need for rebuild)

Try to let prebuilt nnstreamer binaries use another versions of tensorflow/pytorch installed. Theoretically, it should work by simply replacing tensorflow/pytorch with different versions. Unless symbols and their semantics are changed, it should work. (but that happens often with neural network frameworks, which are still not that stable.)