Install

1. Install Java.

Debian/Ubuntu

sudo apt install default-jdk

Mac OS

brew install openjdk

2. Create config.yaml.

extension_thumbnail: "_thumbnail.mp4"
width_thumbnail: 600
path_videos: "videos"
audio_quality_thumbnail: 128

3. Make folder path_videos.

mkdir videos

4. Install ffmpeg.

5. Download the latest version (video-optimize-{version}-SNAPSHOT-standalone.jar).

https://github.com/tanrax/auto-video-thumbnail/releases

6. Now you can execute.

java -jar video-optimize-{version}-SNAPSHOT-standalone.jar

or

java $JVM_OPTS -cp video-optimize-{version}-SNAPSHOT-standalone.jar clojure.main -m video-optimize.core

7. Leave videos in folder videos.

Everything you leave in the videos folder will be optimized for web with the specified resolution (600px in this example).

example.mp4 -> example_thumbnail.mp4