libyuv/lib/basic.test.ts

Bindings to libyuv, provides conversion utilities for in-memory YUV video frames

import { describe } from "razmin";
import { expect } from 'chai';
import * as sha1 from 'node-sha1';

import * as libyuv from '.';

describe(`libyuv`, () => {
    describe(`.Version()`, it => {
        it(`should return its version as a number`, () => {
            expect(typeof libyuv.Version() === 'number', 'version must be a number').to.be.true;
        });

        it(`should have a version number that makes sense`, () => {
            expect(libyuv.Version()).to.be.at.least(1763);
        })
    });

    describe('.I420ToABGR()', it => {
        it(`should successfully run a basic conversion`, () => {
            let width = 50;
            let height = 50;
            let src = new Uint8Array(width * height * 1.5);
            src.fill(0, 0, width*height*1.5);
            
            let dst = new Uint8Array(width * height * 4);
            let retval = libyuv.I420ToABGR(
                src,
                width,
                src.subarray(width*height),
                width / 2,
                src.subarray(width*height + width*height / 4),
                width / 2,
                dst,
                width * 4,
                width, height
            );

            expect(retval).to.equal(0);            
            expect(sha1(dst))
                .to.equal('636d2d59094cc679862855a1c49a7ab87f7c54ae');
        });
    });
})