Denon AVR integration for Remote Two

Using denonavr and uc-integration-api

The driver discovers Denon or Marantz AVRs on the network. A media player entity is exposed to the core.

Supported attributes:

• State (on, off, playing, paused, unknown)
• Title
• Album
• Artist
• Artwork
• Source

Supported commands:

• Turn on
• Turn off
• Next
• Previous
• Volume up
• Volume down
• Play/pause
• Source select

Usage

Setup

• Requires Python 3.11
• Install required libraries:
  (using a virtual environment is highly recommended)

pip3 install -r requirements.txt

For running a separate integration driver on your network for Remote Two, the configuration in file driver.json needs to be changed:

• Set driver_id to a unique value, uc_denon_driver is already used for the embedded driver in the firmware.
• Change name to easily identify the driver for discovery & setup with Remote Two or the web-configurator.
• Optionally add a "port": 8090 field for the WebSocket server listening port.
  • Default port: 9090
  • Also overrideable with environment variable UC_INTEGRATION_HTTP_PORT

Run

python3 intg-denonavr/driver.py

See available environment variables in the Python integration library to control certain runtime features like listening interface and configuration directory.

Build distribution binary

After some tests, turns out Python stuff on embedded is a nightmare. So we're better off creating a binary distribution that has everything in it, including the Python runtime and all required modules and native libraries.

To do that, we use PyInstaller, but it needs to run on the target architecture as PyInstaller does not support cross compilation.

The --onefile option to create a one-file bundled executable should be avoided:

• Higher startup cost, since the wrapper binary must first extract the archive.
• Files are extracted to the /tmp directory on the device, which is an in-memory filesystem.
  This will further reduce the available memory for the integration drivers!

x86-64 Linux

On x86-64 Linux we need Qemu to emulate the aarch64 target platform:

sudo apt install qemu binfmt-support qemu-user-static
docker run --rm --privileged multiarch/qemu-user-static --reset -p yes

Run PyInstaller:

docker run --rm --name builder \
    --platform=aarch64 \
    --user=$(id -u):$(id -g) \
    -v "$PWD":/workspace \
    docker.io/unfoldedcircle/r2-pyinstaller:3.11.6  \
    bash -c \
      "python -m pip install -r requirements.txt && \
      pyinstaller --clean --onedir --name intg-denonavr intg-denonavr/driver.py"

aarch64 Linux / Mac

On an aarch64 host platform, the build image can be run directly (and much faster):

docker run --rm --name builder \
    --user=$(id -u):$(id -g) \
    -v "$PWD":/workspace \
    docker.io/unfoldedcircle/r2-pyinstaller:3.11.6  \
    bash -c \
      "python -m pip install -r requirements.txt && \
      pyinstaller --clean --onedir --name intg-denonavr intg-denonavr/driver.py"

Versioning

We use SemVer for versioning. For the versions available, see the tags and releases in this repository.

Changelog

The major changes found in each new release are listed in the changelog and under the GitHub releases.

Contributions

Please read our contribution guidelines before opening a pull request.

License

This project is licensed under the Mozilla Public License 2.0. See the LICENSE file for details.