otf-pixels-codec-avif

AVIF for Pixels, container and AV1 written from scratch

crates.io | Docs | Pixels

An Open Tech Foundation project

Decodes AVIF stills at 8, 10 and 12 bits and encodes lossy 8-bit, owning both the HEIF container and the AV1 bitstream.

[!TIP] Building an app or a server? Use otf-pixels instead: it picks this codec from the file's bytes with its avif feature.

Use it

Transcode row by row, without holding the image:

use otf_pixels_codec_avif::{AvifDecoder, AvifEncoder};
use otf_pixels_core::{Decoder, Encoder, Limits};
use otf_pixels_core::EncodeOptions;

let mut decoder = AvifDecoder::new(std::fs::File::open("in.avif")?, Limits::default())?;
let descriptor = decoder.descriptor();
let mut encoder = AvifEncoder::from_options(&EncodeOptions::with_quality(60)?);
let mut out = Vec::new();
encoder.write_header(&descriptor, &mut out)?;
let mut row = vec![0; descriptor.row_bytes()];
for _ in 0..descriptor.height {
    decoder.read_row(&mut row)?;
    encoder.write_row(&row, &mut out)?;
}
encoder.finish(&mut out)?;

Capabilities

API

Part of Pixels

License

Apache-2.0 — see LICENSE.