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fix(image): warn when animated image is missing unoptimized prop #61045

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merged 2 commits into from Jan 23, 2024

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styfle
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@styfle styfle commented Jan 23, 2024

This PR adds a warning when attempting to optimize an animated image.

<Image src="/image.gif" />

The warning looks like the following:

The requested resource "/image.gif" is an animated image so it will not be optimized. Consider adding the "unoptimized" property to the <Image>.

To remove the warning, add the unoptimized prop.

<Image src="/image.gif" unoptimized />

We don't attempt to optimized animated images because it can be very slow (30+ seconds) and sometimes deoptimizeds (the output is larger than the input) so its best to serve the animated image as-is.

Closes NEXT-2199

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ijjk commented Jan 23, 2024

Stats from current PR

Default Build
General Overall increase ⚠️
vercel/next.js canary vercel/next.js warn-animated-image-unoptimized Change
buildDuration 11.5s 11.5s N/A
buildDurationCached 6s 4.8s N/A
nodeModulesSize 200 MB 200 MB ⚠️ +2.53 kB
nextStartRea..uration (ms) 420ms 417ms N/A
Client Bundles (main, webpack)
vercel/next.js canary vercel/next.js warn-animated-image-unoptimized Change
193.HASH.js gzip 181 B 182 B N/A
3f784ff6-HASH.js gzip 53.4 kB 53.4 kB
433-HASH.js gzip 29 kB 29 kB N/A
framework-HASH.js gzip 45.2 kB 45.2 kB
main-app-HASH.js gzip 240 B 242 B N/A
main-HASH.js gzip 31.8 kB 31.8 kB N/A
webpack-HASH.js gzip 1.7 kB 1.7 kB N/A
Overall change 98.6 kB 98.6 kB
Legacy Client Bundles (polyfills)
vercel/next.js canary vercel/next.js warn-animated-image-unoptimized Change
polyfills-HASH.js gzip 31 kB 31 kB
Overall change 31 kB 31 kB
Client Pages
vercel/next.js canary vercel/next.js warn-animated-image-unoptimized Change
_app-HASH.js gzip 194 B 195 B N/A
_error-HASH.js gzip 183 B 181 B N/A
amp-HASH.js gzip 504 B 502 B N/A
css-HASH.js gzip 321 B 321 B
dynamic-HASH.js gzip 2.5 kB 2.5 kB N/A
edge-ssr-HASH.js gzip 255 B 253 B N/A
head-HASH.js gzip 350 B 349 B N/A
hooks-HASH.js gzip 369 B 369 B
image-HASH.js gzip 4.18 kB 4.18 kB N/A
index-HASH.js gzip 255 B 256 B N/A
link-HASH.js gzip 2.61 kB 2.61 kB
routerDirect..HASH.js gzip 312 B 311 B N/A
script-HASH.js gzip 385 B 383 B N/A
withRouter-HASH.js gzip 307 B 308 B N/A
1afbb74e6ecf..834.css gzip 106 B 106 B
Overall change 3.4 kB 3.4 kB
Client Build Manifests
vercel/next.js canary vercel/next.js warn-animated-image-unoptimized Change
_buildManifest.js gzip 484 B 485 B N/A
Overall change 0 B 0 B
Rendered Page Sizes
vercel/next.js canary vercel/next.js warn-animated-image-unoptimized Change
index.html gzip 528 B 525 B N/A
link.html gzip 540 B 538 B N/A
withRouter.html gzip 524 B 522 B N/A
Overall change 0 B 0 B
Edge SSR bundle Size
vercel/next.js canary vercel/next.js warn-animated-image-unoptimized Change
edge-ssr.js gzip 94 kB 94 kB N/A
page.js gzip 149 kB 149 kB N/A
Overall change 0 B 0 B
Middleware size
vercel/next.js canary vercel/next.js warn-animated-image-unoptimized Change
middleware-b..fest.js gzip 625 B 628 B N/A
middleware-r..fest.js gzip 151 B 151 B
middleware.js gzip 37.5 kB 37.5 kB N/A
edge-runtime..pack.js gzip 1.92 kB 1.92 kB
Overall change 2.07 kB 2.07 kB
Next Runtimes
vercel/next.js canary vercel/next.js warn-animated-image-unoptimized Change
app-page-exp...dev.js gzip 169 kB 169 kB
app-page-exp..prod.js gzip 95.6 kB 95.6 kB
app-page-tur..prod.js gzip 96.3 kB 96.3 kB
app-page-tur..prod.js gzip 90.9 kB 90.9 kB
app-page.run...dev.js gzip 142 kB 142 kB
app-page.run..prod.js gzip 90.2 kB 90.2 kB
app-route-ex...dev.js gzip 24.2 kB 24.2 kB
app-route-ex..prod.js gzip 16.9 kB 16.9 kB
app-route-tu..prod.js gzip 16.9 kB 16.9 kB
app-route-tu..prod.js gzip 16.4 kB 16.4 kB
app-route.ru...dev.js gzip 23.6 kB 23.6 kB
app-route.ru..prod.js gzip 16.4 kB 16.4 kB
pages-api-tu..prod.js gzip 9.41 kB 9.41 kB
pages-api.ru...dev.js gzip 9.68 kB 9.68 kB
pages-api.ru..prod.js gzip 9.4 kB 9.4 kB
pages-turbo...prod.js gzip 22 kB 22 kB
pages.runtim...dev.js gzip 22.6 kB 22.6 kB
pages.runtim..prod.js gzip 22 kB 22 kB
server.runti..prod.js gzip 49.7 kB 49.7 kB
Overall change 944 kB 944 kB
Commit: 6d57cf6

@ijjk
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ijjk commented Jan 23, 2024

Tests Passed

@styfle styfle marked this pull request as ready for review January 23, 2024 21:13
@styfle styfle requested review from jh3y and molebox and removed request for a team January 23, 2024 21:13
@styfle styfle merged commit 6c611fe into canary Jan 23, 2024
67 checks passed
@styfle styfle deleted the warn-animated-image-unoptimized branch January 23, 2024 22:31
@github-actions github-actions bot added the locked label Feb 7, 2024
@github-actions github-actions bot locked as resolved and limited conversation to collaborators Feb 7, 2024
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3 participants