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allow doubled avatar resolution

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up to now, avatars were restricted to 20k, 256x256 pixel.
resulting in often poor avatar quality.
(the limitation comes from times
where unencrypted outlook inner headers were a thing;
this has changed meanwhile)

to increase quality while keeping a reasonable small size,
for "balanced quality",
we increase the allowed width to 512x512 and the allowed size to 60k.

for "worse quality", things stay unchanged at 128x128 pixel and 20k.
This commit is contained in:
B. Petersen
2025-02-20 22:15:54 +01:00
committed by bjoern
parent b9acd603a5
commit d6209e08e6
3 changed files with 15 additions and 10 deletions
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15
src/blob.rs
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@@ -252,24 +252,27 @@ impl<'a> BlobObject<'a> {
}
pub async fn recode_to_avatar_size(&mut self, context: &Context) -> Result<()> {
let img_wh =
let (img_wh, max_bytes) =
match MediaQuality::from_i32(context.get_config_int(Config::MediaQuality).await?)
.unwrap_or_default()
{
MediaQuality::Balanced => constants::BALANCED_AVATAR_SIZE,
MediaQuality::Worse => constants::WORSE_AVATAR_SIZE,
MediaQuality::Balanced => (
constants::BALANCED_AVATAR_SIZE,
constants::BALANCED_AVATAR_BYTES,
),
MediaQuality::Worse => {
(constants::WORSE_AVATAR_SIZE, constants::WORSE_AVATAR_BYTES)
}
};
let maybe_sticker = &mut false;
let strict_limits = true;
// max_bytes is 20_000 bytes: Outlook servers don't allow headers larger than 32k.
// 32 / 4 * 3 = 24k if you account for base64 encoding. To be safe, we reduced this to 20k.
self.recode_to_size(
context,
None, // The name of an avatar doesn't matter
maybe_sticker,
img_wh,
20_000,
max_bytes,
strict_limits,
)?;