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Improve multi-frame image resizing (#2789)

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* Ports vips_thumbnail logic to sharp 
* Deprecates the pageHeight output option for WebP/GIF
This commit is contained in:
Kleis Auke Wolthuizen
2021-12-10 21:32:04 +01:00
committed by GitHub
parent 659cdabd8e
commit 513fb40f40
29 changed files with 619 additions and 334 deletions
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27
test/unit/extract.js
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@@ -39,10 +39,35 @@ describe('Partial image extraction', function () {
});
});
describe('Animated WebP', function () {
it('Before resize', function (done) {
sharp(fixtures.inputWebPAnimated, { pages: -1 })
.extract({ left: 0, top: 30, width: 80, height: 20 })
.resize(320, 80)
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(320, info.width);
assert.strictEqual(80 * 9, info.height);
fixtures.assertSimilar(fixtures.expected('gravity-center-height.webp'), data, done);
});
});
it('After resize', function (done) {
sharp(fixtures.inputWebPAnimated, { pages: -1 })
.resize(320, 320)
.extract({ left: 0, top: 120, width: 320, height: 80 })
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(320, info.width);
assert.strictEqual(80 * 9, info.height);
fixtures.assertSimilar(fixtures.expected('gravity-center-height.webp'), data, done);
});
});
});
it('TIFF', function (done) {
sharp(fixtures.inputTiff)
.extract({ left: 34, top: 63, width: 341, height: 529 })
.jpeg()
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(341, info.width);