Dragoon

The Bit Goblin video transcoder.

Installing from RPM

Installing from the Bit Goblin repository is easy! Add the following repo file to /etc/yum.repos.d/bitgoblin.repo:

[bitgoblin]
name=Bit Goblin repository
baseurl=http://repo.metaunix.net/dnf
enabled=1
gpgcheck=0

Update your package sources just to make sure all was added properly:

dnf updateinfo

Then install dragoon! Use the command below if you DON'T want DNF to install a bunch of unnecessary stuff to meet OpenJDK's weak dependencies; otherwise a regular dnf install dragoon is fine:

dnf --setopt=install_weak_deps=False --best install dragoon

Building

Currently this project is targeting Java 17 LTS and uses Maven to manage the software lifecycle. Thus, you must have a Java 17 JDK and Maven installed to build this project.

Ubuntu

sudo apt install openjdk-17-jdk maven

Red Hat/Almalinux

sudo dnf install java-17-openjdk-devel maven

Actually Building

Now that the needed tools are installed, you should be able to build this project. To build a JAR file with it's dependencies included:

mvn clean compile assembly:single

Then you can run the transcoder:

java -jar target/Dragon-VERSION-jar-with-dependencies.jar

Configuration

If you were paying attention to Dragoon's output, you would have noticed that it failed with a complaint about not finding a configuration file. The location might move in the future or even be configurable, but for now you need to have a TOML file located at ~/.config/dragoon.toml with at minimum the following contents:

# This example transcodes footage to DNxHD 1080p60 for use in video editors like DaVinci Resolve.
[transcoder]
repo_path = '~/videos' # location of the videos to transcode
video_format = 'mov' # video container format
video_codec = 'dnxhd' # video codec to use
video_parameters = 'scale=1920x1080,fps=60,format=yuv422p' # video extra format parameters flag - this will be broken later into separate attributes
video_profile = 'dnxhr_hq' # DNxHD has multiple presets for various video qualities
audio_codec = 'pcm_s16le' # audio codec to use