Mathis/sharp
1
0
Fork 0
mirror of https://github.com/lovell/sharp.git synced 2025-12-19 07:15:08 +01:00
Code Issues Packages Projects Releases Wiki Activity

Expose WebP alpha quality, lossless and near-lossless output options (#685)

Browse Source
This commit is contained in:
Rahul Nanwani
2017-01-19 19:15:32 +05:30
committed by Lovell Fuller
parent 815d076b35
commit a1b8efe721
9 changed files with 88 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

BIN
test/fixtures/expected/webp-alpha-80.webp vendored Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 116 KiB

BIN
test/fixtures/expected/webp-lossless.webp vendored Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 170 KiB

BIN
test/fixtures/expected/webp-near-lossless-50.webp vendored Normal file
View File

Binary file not shown.
Side by Side

After

Width:  |  Height:  |  Size: 94 KiB

50
test/unit/io.js
View File

@@ -372,6 +372,50 @@ describe('Input/output', function () {
done();
});
});
it('should work for webp alpha quality', function (done) {
sharp(fixtures.inputPngAlphaPremultiplicationSmall)
.webp({alphaQuality: 80})
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('webp', info.format);
fixtures.assertSimilar(fixtures.expected('webp-alpha-80.webp'), data, done);
});
});
it('should work for webp lossless', function (done) {
sharp(fixtures.inputPngAlphaPremultiplicationSmall)
.webp({lossless: true})
.toBuffer(function (err, data, info) {
if (err) throw err;
assert.strictEqual(true, data.length > 0);
assert.strictEqual('webp', info.format);
fixtures.assertSimilar(fixtures.expected('webp-lossless.webp'), data, done);
});
});
it('should work for webp near-lossless', function (done) {
sharp(fixtures.inputPngAlphaPremultiplicationSmall)
.webp({nearLossless: true, quality: 50})
.toBuffer(function (err50, data50, info50) {
if (err50) throw err50;
assert.strictEqual(true, data50.length > 0);
assert.strictEqual('webp', info50.format);
fixtures.assertSimilar(fixtures.expected('webp-near-lossless-50.webp'), data50, done);
});
});
it('should use near-lossless when both lossless and nearLossless are specified', function (done) {
sharp(fixtures.inputPngAlphaPremultiplicationSmall)
.webp({nearLossless: true, quality: 50, lossless: true})
.toBuffer(function (err50, data50, info50) {
if (err50) throw err50;
assert.strictEqual(true, data50.length > 0);
assert.strictEqual('webp', info50.format);
fixtures.assertSimilar(fixtures.expected('webp-near-lossless-50.webp'), data50, done);
});
});
}
it('Invalid output format', function (done) {
@@ -735,6 +779,12 @@ describe('Input/output', function () {
});
});
it('Invalid WebP alpha quality throws error', function () {
assert.throws(function () {
sharp().webp({ alphaQuality: 101 });
});
});
it('Invalid TIFF quality throws error', function () {
assert.throws(function () {
sharp().tiff({ quality: 101 });