Struct Vp8lEncoder 

pub struct Vp8lEncoder { /* private fields */ }

VP8L (WebP lossless) encoder.

Produces valid VP8L bitstreams from ARGB pixel data. The encoder supports multiple effort levels that control which transforms are applied before entropy coding.

Example

use oximedia_codec::webp::Vp8lEncoder;

let encoder = Vp8lEncoder::new(50);
let pixels: Vec<u32> = vec![0xff_ff_00_00; 64]; // 8x8 red image
let data = encoder.encode(&pixels, 8, 8, false)?;

Implementations

impl Vp8lEncoder

pub fn new(effort: u8) -> Self

Creates a new VP8L encoder with the given effort level (0-100).

• effort 0-30: Only subtract-green transform
• effort 31-100: Subtract-green + predictor transform

pub fn encode( &self, pixels: &[u32], width: u32, height: u32, has_alpha: bool, ) -> CodecResult<Vec<u8>>

Encode ARGB pixels to a VP8L bitstream.

Arguments

• pixels - Slice of ARGB u32 values (one per pixel, row-major order). Format: (alpha << 24) | (red << 16) | (green << 8) | blue.
• width - Image width in pixels (1..16384).
• height - Image height in pixels (1..16384).
• has_alpha - Whether the alpha channel contains meaningful data.

Returns

VP8L encoded data starting with the 0x2F signature byte.