Skip to content
Codec Wiki
Blog

Av1an Command Generator

Av1an Command Generator is a rudimentary tool for easily generating Av1an commands for AV1 encoding. It is written in the Zig programming language. It is very similar to rAV1ator CLI in the sense that it can produce Av1an commands based on user input.

GitHub Link

Description

Av1an Command Generator is designed for beginners, although experienced encoders can use it to speed up their Av1an scripting. The program generates an AV1 video encoding command for use with Av1an, a chunked video encoding tool that can be used with aomenc, SVT-AV1, and rav1e.

This tool takes in the video resolution, frame rate, desired encoder, speed preset, and target bitrate range as command line arguments. Based on these parameters, it calculates settings like tile columns/rows, lag-in-frames, CRF, and encoder speed preset. Then, it injects these into a generated encoding command string.

The output is a full av1an command that can be run to encode a video based on the specified settings.

Usage

Terminal window
av1an-command-gen [width] [height] [fps] [encoder] [speed] [bitrate_target]
  • width - Input video width in pixels
  • height - Input video height in pixels
  • fps - Input video frame rate
  • encoder - aom, svt, or rav1e
  • speed - slower, slow, med, fast, faster
  • bitrate_target - lowest, low, med, high

Examples

Generate a command for encoding a 1280x720 video at 24 fps using rav1e at ‘med’ speed and ‘low’ bitrate target:

Terminal window
av1an-command-gen 1280 720 24 rav1e med low

Generate a command for encoding a 1920x1080 video at 30 fps using svt-av1 at ‘fast’ speed and ‘high’ bitrate target:

Terminal window
av1an-command-gen 1920 1080 30 svt fast high

Installation

This program requires the Zig v0.11.0 programming language.

To build:

Terminal window
zig build

This will produce a standalone binary av1an-command-gen in zig-out/bin/.

License

This project is licensed under the BSD 3-Clause License.