Resize avatars before sending to Discord #76

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opened 2026-03-03 12:15:12 +00:00 by cadence · 3 comments

cadence commented

2026-03-03 12:15:12 +00:00

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Find a commonly used scale size for crop
Add/modify image endpoint to accept resizing (match to what the Matrix API is passed)
Modify event-to-message.js to get a link to the resized avatar

- Find a commonly used scale size for `crop` - Add/modify image endpoint to accept resizing (match to what the Matrix API is passed) - Modify event-to-message.js to get a link to the resized avatar

cadence added the

very approachable

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2026-03-07 09:13:11 +00:00

cadence commented

2026-05-29 06:34:15 +00:00

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In crop mode there are not many common usages at large enough sizes needed for Discord on a 2x pixel density display. For scale mode a common size (the third most common, in fact) is >=240x240, which is sufficient. This also works well with Synapse's default thumbnail_sizes configuration. So I will scale profile pictures to >=240x240 for Discord.

In `crop` mode there are not many common usages at large enough sizes needed for Discord on a 2x pixel density display. For `scale` mode a common size (the third most common, in fact) is >=240x240, which is sufficient. This also works well with [Synapse's default `thumbnail_sizes` configuration](https://element-hq.github.io/synapse/latest/usage/configuration/config_documentation.html#thumbnail_sizes). So I will `scale` profile pictures to >=240x240 for Discord.

cadence removed the

very approachable

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2026-05-29 08:03:37 +00:00

cadence commented

2026-05-29 08:03:41 +00:00

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JK, have to do it client side because server side is too slow.