andytango/webp-wasm-js

🎨 Simple webp encoder and decoder, compiled to WebAssembly

WebP encoder and decoder

Extracted and built from Google's Squoosh app, packaged for NPM.

Example

See dec/example.html and enc/example.html

Decode API

int version()

Returns the version of libwebp as a number. va.b.c is encoded as 0x0a0b0c

RawImage decode(std::string buffer)

Decodes the given webp buffer into raw RGBA. RawImage is a class with 3 fields: buffer, width, and height.

void free_result()

Frees the result created by decode().

Encode API

int version()

Returns the version of libwebp as a number. va.b.c is encoded as 0x0a0b0c

UInt8Array encode(uint8_t* image_buffer, int image_width, int image_height, WebPConfig config)

Encodes the given image with given dimension to WebP.

void free_result()

Frees the last result created by encode().