Batch Encoders

A collection of the same program written in different languages.

About

This program is a simple batch encoder, it allows you to add multiple files, set crf rating, and exclusive to Kcoder, you get to modify the video and audio codecs, and bitrate for audio. This is a program that is easy to make, as shown with the encode.bat implementation, but with the limitations of bat script, I had to shift to another language, like Python or Kotlin. This is a project that I plan to update, to show my knowledge with each language I add, to show that I'm competent enough in them to at least get a program like this done. Hopefully you, the person reading this, learn something from any of the implementations shown here.

Requirements

The requirements for all of these implementations are as such:

• Latest Java Runtime (and Java JDK 17 if you plan to add to the code)
• ffmpeg, the latest version if possible

Warnings

This may be fixed by the time I post this, but on Arch Linux, there is a present problem with ffmpeg when encoding with the libaom-av1 codec due to an ABI version mismatch. Until the program is updated to fix this, you may or may not experience major problem using any of these programs (besides Kcoder currently since it allows unique video and audio codecs).

Features

For each of these programs, they should implement these set features unless limited by the language, or shown to be far too much work to implements (bat script being a perfect example).

The set features are these:

• A queue for multiple encodes
• An input file selector that lists all files in the base directory, allowing for numbered selection
• To automatically set the output file with proper extension
• The ability to edit the CRF rating
• The ability to remove a file from the queue
• The ability to set video and audio codecs
• The ability to modify the bitrate of the audio codec
• And finally, the ability to add custom special params for the video codec; this is important since to enable multithreading for av1, you have to write special parameters such as -row-mt 1 -tiles 4x4