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fix(next/image): prefer sharp defaults, use mozjpeg for JPEG
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- Upgrades sharp to latest v0.33.4

- Use default concurrency detection instead of os.cpus() as it
inspects things like CPU set/affinity as well as the memory
allocator.

- Prevents use of chroma subsampling for AVIF output, instead
slightly reducing relative quality. This should improve the
appearance of red/orange edges and reduce file size as AV1
chroma-from-luma prediction will work better.

- There's no need to set sequentialRead as sharp now manages this
for each input image and the operations in the pipeline.

- Defaults JPEG output to use mozjpeg features such as trellis
quantisation as these produce smaller file sizes. This should
produce consistent output with squoosh at the same quality.
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lovell committed May 18, 2024
1 parent 0cd20e0 commit e531a96
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Showing 8 changed files with 51 additions and 53 deletions.
2 changes: 1 addition & 1 deletion packages/next/package.json
Original file line number Diff line number Diff line change
Expand Up @@ -124,7 +124,7 @@
}
},
"optionalDependencies": {
"sharp": "^0.33.3"
"sharp": "^0.33.4"
},
"devDependencies": {
"@ampproject/toolbox-optimizer": "2.8.3",
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16 changes: 7 additions & 9 deletions packages/next/src/server/image-optimizer.ts
Original file line number Diff line number Diff line change
@@ -1,6 +1,5 @@
import { createHash } from 'crypto'
import { promises } from 'fs'
import { cpus } from 'os'
import type { IncomingMessage, ServerResponse } from 'http'
import { mediaType } from 'next/dist/compiled/@hapi/accept'
import contentDisposition from 'next/dist/compiled/content-disposition'
Expand Down Expand Up @@ -52,7 +51,9 @@ function getSharp() {
// We more aggressively reduce in dev but also reduce in prod.
// https://sharp.pixelplumbing.com/api-utility#concurrency
const divisor = process.env.NODE_ENV === 'development' ? 4 : 2
_sharp.concurrency(Math.floor(Math.max(cpus().length / divisor, 1)))
_sharp.concurrency(
Math.floor(Math.max(_sharp.concurrency() / divisor, 1))
)
}
} catch (e: unknown) {
if (isError(e) && e.code === 'MODULE_NOT_FOUND') {
Expand Down Expand Up @@ -444,9 +445,7 @@ export async function optimizeImage({
nextConfigOutput?: 'standalone' | 'export'
}): Promise<Buffer> {
const sharp = getSharp()
const transformer = sharp(buffer, { sequentialRead: true })
.timeout({ seconds: 7 })
.rotate()
const transformer = sharp(buffer).timeout({ seconds: 7 }).rotate()

if (height) {
transformer.resize(width, height)
Expand All @@ -457,17 +456,16 @@ export async function optimizeImage({
}

if (contentType === AVIF) {
const avifQuality = quality - 15
const avifQuality = quality - 20
transformer.avif({
quality: Math.max(avifQuality, 0),
chromaSubsampling: '4:2:0', // same as webp
quality: Math.max(avifQuality, 1),
})
} else if (contentType === WEBP) {
transformer.webp({ quality })
} else if (contentType === PNG) {
transformer.png({ quality })
} else if (contentType === JPEG) {
transformer.jpeg({ quality, progressive: true })
transformer.jpeg({ quality, mozjpeg: true })
}

const optimizedBuffer = await transformer.toBuffer()
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76 changes: 38 additions & 38 deletions pnpm-lock.yaml

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Expand Up @@ -78,7 +78,7 @@ const runTests = (isDev = false) => {
`style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;background-size:cover;background-position:0% 0%;filter:blur(20px);background-image:url(${
isDev
? '&quot;/docs/_next/image?url=%2Fdocs%2F_next%2Fstatic%2Fmedia%2Ftest.fab2915d.jpg&amp;w=8&amp;q=70&quot;'
: '&quot;data:image/jpeg;base64,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&quot;'
: '&quot;data:image/jpeg;base64,/9j/2wBDAAoKCgoKCgsMDAsPEA4QDxYUExMUFiIYGhgaGCIzICUgICUgMy03LCksNy1RQDg4QFFeT0pPXnFlZXGPiI+7u/v/2wBDAQoKCgoKCgsMDAsPEA4QDxYUExMUFiIYGhgaGCIzICUgICUgMy03LCksNy1RQDg4QFFeT0pPXnFlZXGPiI+7u/v/wgARCAAGAAgDASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUAQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIQAxAAAACVA//EABwQAAICAgMAAAAAAAAAAAAAABITERQAAwUVIv/aAAgBAQABPwB3H9YmrsuvN5+VxADn/8QAFBEBAAAAAAAAAAAAAAAAAAAAAP/aAAgBAgEBPwB//8QAFBEBAAAAAAAAAAAAAAAAAAAAAP/aAAgBAwEBPwB//9k=&quot;'
})`
)
}
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Expand Up @@ -66,7 +66,7 @@ const runTests = () => {
})
it('Should add a blur placeholder to statically imported jpg', async () => {
expect(html).toContain(
`style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;background-size:cover;background-position:0% 0%;filter:blur(20px);background-image:url(&quot;data:image/jpeg;base64,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&quot;)"`
`style="position:absolute;top:0;left:0;bottom:0;right:0;box-sizing:border-box;padding:0;border:none;margin:auto;display:block;width:0;height:0;min-width:100%;max-width:100%;min-height:100%;max-height:100%;background-size:cover;background-position:0% 0%;filter:blur(20px);background-image:url(&quot;data:image/jpeg;base64,/9j/2wBDAAoKCgoKCgsMDAsPEA4QDxYUExMUFiIYGhgaGCIzICUgICUgMy03LCksNy1RQDg4QFFeT0pPXnFlZXGPiI+7u/v/2wBDAQoKCgoKCgsMDAsPEA4QDxYUExMUFiIYGhgaGCIzICUgICUgMy03LCksNy1RQDg4QFFeT0pPXnFlZXGPiI+7u/v/wgARCAAGAAgDASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUAQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIQAxAAAACVA//EABwQAAICAgMAAAAAAAAAAAAAABITERQAAwUVIv/aAAgBAQABPwB3H9YmrsuvN5+VxADn/8QAFBEBAAAAAAAAAAAAAAAAAAAAAP/aAAgBAgEBPwB//8QAFBEBAAAAAAAAAAAAAAAAAAAAAP/aAAgBAwEBPwB//9k=&quot;)"`
)
})
it('Should add a blur placeholder to statically imported png', async () => {
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Original file line number Diff line number Diff line change
Expand Up @@ -140,7 +140,7 @@ const runTests = (isDev) => {
)
} else {
expect(style).toBe(
`color:transparent;background-size:cover;background-position:50% 50%;background-repeat:no-repeat;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 320 240'%3E%3Cfilter id='b' color-interpolation-filters='sRGB'%3E%3CfeGaussianBlur stdDeviation='20'/%3E%3CfeColorMatrix values='1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 100 -1' result='s'/%3E%3CfeFlood x='0' y='0' width='100%25' height='100%25'/%3E%3CfeComposite operator='out' in='s'/%3E%3CfeComposite in2='SourceGraphic'/%3E%3CfeGaussianBlur stdDeviation='20'/%3E%3C/filter%3E%3Cimage width='100%25' height='100%25' x='0' y='0' preserveAspectRatio='none' style='filter: url(%23b);' href='data:image/jpeg;base64,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'/%3E%3C/svg%3E")`
`color:transparent;background-size:cover;background-position:50% 50%;background-repeat:no-repeat;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 320 240'%3E%3Cfilter id='b' color-interpolation-filters='sRGB'%3E%3CfeGaussianBlur stdDeviation='20'/%3E%3CfeColorMatrix values='1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 100 -1' result='s'/%3E%3CfeFlood x='0' y='0' width='100%25' height='100%25'/%3E%3CfeComposite operator='out' in='s'/%3E%3CfeComposite in2='SourceGraphic'/%3E%3CfeGaussianBlur stdDeviation='20'/%3E%3C/filter%3E%3Cimage width='100%25' height='100%25' x='0' y='0' preserveAspectRatio='none' style='filter: url(%23b);' href='data:image/jpeg;base64,/9j/2wBDAAoKCgoKCgsMDAsPEA4QDxYUExMUFiIYGhgaGCIzICUgICUgMy03LCksNy1RQDg4QFFeT0pPXnFlZXGPiI+7u/v/2wBDAQoKCgoKCgsMDAsPEA4QDxYUExMUFiIYGhgaGCIzICUgICUgMy03LCksNy1RQDg4QFFeT0pPXnFlZXGPiI+7u/v/wgARCAAGAAgDASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUAQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIQAxAAAACVA//EABwQAAICAgMAAAAAAAAAAAAAABITERQAAwUVIv/aAAgBAQABPwB3H9YmrsuvN5+VxADn/8QAFBEBAAAAAAAAAAAAAAAAAAAAAP/aAAgBAgEBPwB//8QAFBEBAAAAAAAAAAAAAAAAAAAAAP/aAAgBAwEBPwB//9k='/%3E%3C/svg%3E")`
)
}
}
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Original file line number Diff line number Diff line change
Expand Up @@ -135,7 +135,7 @@ const runTests = (isDev) => {
)
} else {
expect(style).toBe(
`color:transparent;background-size:cover;background-position:50% 50%;background-repeat:no-repeat;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 320 240'%3E%3Cfilter id='b' color-interpolation-filters='sRGB'%3E%3CfeGaussianBlur stdDeviation='20'/%3E%3CfeColorMatrix values='1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 100 -1' result='s'/%3E%3CfeFlood x='0' y='0' width='100%25' height='100%25'/%3E%3CfeComposite operator='out' in='s'/%3E%3CfeComposite in2='SourceGraphic'/%3E%3CfeGaussianBlur stdDeviation='20'/%3E%3C/filter%3E%3Cimage width='100%25' height='100%25' x='0' y='0' preserveAspectRatio='none' style='filter: url(%23b);' href='data:image/jpeg;base64,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'/%3E%3C/svg%3E")`
`color:transparent;background-size:cover;background-position:50% 50%;background-repeat:no-repeat;background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 320 240'%3E%3Cfilter id='b' color-interpolation-filters='sRGB'%3E%3CfeGaussianBlur stdDeviation='20'/%3E%3CfeColorMatrix values='1 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 100 -1' result='s'/%3E%3CfeFlood x='0' y='0' width='100%25' height='100%25'/%3E%3CfeComposite operator='out' in='s'/%3E%3CfeComposite in2='SourceGraphic'/%3E%3CfeGaussianBlur stdDeviation='20'/%3E%3C/filter%3E%3Cimage width='100%25' height='100%25' x='0' y='0' preserveAspectRatio='none' style='filter: url(%23b);' href='data:image/jpeg;base64,/9j/2wBDAAoKCgoKCgsMDAsPEA4QDxYUExMUFiIYGhgaGCIzICUgICUgMy03LCksNy1RQDg4QFFeT0pPXnFlZXGPiI+7u/v/2wBDAQoKCgoKCgsMDAsPEA4QDxYUExMUFiIYGhgaGCIzICUgICUgMy03LCksNy1RQDg4QFFeT0pPXnFlZXGPiI+7u/v/wgARCAAGAAgDASIAAhEBAxEB/8QAFQABAQAAAAAAAAAAAAAAAAAAAAf/xAAUAQEAAAAAAAAAAAAAAAAAAAAA/9oADAMBAAIQAxAAAACVA//EABwQAAICAgMAAAAAAAAAAAAAABITERQAAwUVIv/aAAgBAQABPwB3H9YmrsuvN5+VxADn/8QAFBEBAAAAAAAAAAAAAAAAAAAAAP/aAAgBAgEBPwB//8QAFBEBAAAAAAAAAAAAAAAAAAAAAP/aAAgBAwEBPwB//9k='/%3E%3C/svg%3E")`
)
}
}
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