Ringli music compression codec.

A high quality media compression codec.

Compatibility

Ringli is a project under development, and is built and tested in a Debian-like environment.

Build

Many dependencies for Ringli are downloaded and managed by the build script, but a few need to be installed beforehand:

• ffmpeg
• libogg-dev
• cmake
• ninja-build
• xxd
• clang
• clang-tidy

To install these in a Debian-like system:

sudo apt install -y ffmpeg libogg-dev cmake ninja-build xxd clang clang-tidy

Once they are installed, configure the project:

./configure.sh

Build the project:

(cd build && ninja)

Address sanitizer build

To build with address sanitizer, configure a new build directory with asan configured:

./configure.sh asan

Build the project:

(cd asan_build && ninja)

Debug build

To build with debug symbols, configure a new build directory with debugging configured:

./configure.sh debug

Build the project:

(cd debug_build && ninja)

Testing

(cd build && ninja && ninja test)

Analysis

To analyze Ringli performance, build and run the ringli_eval binary with WAV files:

(cd build && ninja ringli_eval && \
analysis/ringli_eval \
  --input_file=../analysis/input_files/01_symphonic.wav \
  --codecs="ringli:pc:o2-16:q5")

Metrics

The ViSQOL perceptual metric is built into ringli_eval.

To run the WARP-Q metric, use the install script analysis/install_warp_q.sh:

analysis/install_warp_q.sh $HOME/tmp/warp_q/

This will install a script that runs WARP-Q inside $HOME/tmp/warp_q that can be provided to the ringli_eval binary:

(cd build && ninja ringli_eval && \
analysis/ringli_eval \
  --warp_q_binary=$HOME/tmp/warp_q/warp_q.sh \
  --input_file=$HOME/tmp/01_symphonic.wav \
  --codecs="ringli:pc:o2-16:q5")