How to use the command avifenc (with examples)

AV1 Image File Format (AVIF) is a relatively new image format that provides high compression efficiency and superior quality compared to other image formats. The avifenc command is an AVIF encoder that allows you to convert images to AVIF format with different settings and options.

Use case 1: Convert a specific PNG image to AVIF

Code:

avifenc path/to/input.png path/to/output.avif

Motivation: The motivation behind converting a PNG image to AVIF format is to take advantage of the superior compression and image quality of AVIF. By converting PNG images to AVIF, you can significantly reduce the file size while maintaining high visual quality.

Explanation:

• avifenc - The name of the command used to encode images to AVIF format.
• path/to/input.png - The path to the PNG image that you want to convert.
• path/to/output.avif - The path where you want to save the converted AVIF image.

Example output: After running the above command, the specified PNG image will be converted to AVIF format and saved at the specified output path.

Use case 2: Encode with a specific speed

Code:

avifenc --speed 2 path/to/input.png path/to/output.avif

Motivation: Encoding images to AVIF format can be a computationally intensive task depending on the image size and quality settings. By specifying a specific speed value, you can control the encoding speed and tradeoff between speed and compression efficiency. Lower speed values result in slower but higher-quality encoding, while higher speed values result in faster but lower-quality encoding.

Explanation:

• --speed 2 - The speed option allows you to specify the encoding speed. The default speed is 6, and values range from 0 (slowest) to 10 (fastest). In this example, a speed of 2 is chosen, which indicates a relatively faster encoding process compared to the default speed.
• path/to/input.png - The path to the PNG image that you want to convert.
• path/to/output.avif - The path where you want to save the converted AVIF image.

Example output: After running the above command, the specified PNG image will be converted to AVIF format using the specified speed setting, and the converted image will be saved at the specified output path.

Conclusion:

The avifenc command is a powerful tool for converting images to the AVIF format. Whether you want to leverage the superior compression and quality of AVIF or control the encoding speed, avifenc provides a flexible and straightforward way to accomplish these tasks. By following the examples provided, you can easily convert PNG images to AVIF and adjust the encoding speed according to your requirements.