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Changed requirements for images in OPDS 2.0 #80

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merged 2 commits into from
May 7, 2024
Merged

Changed requirements for images in OPDS 2.0 #80

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8580393
Changed requirement for images in OPDS 2.0
HadrienGardeur Apr 17, 2024
4d68672
Adds AVIF to the list of supported image formats
HadrienGardeur Apr 17, 2024
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4 changes: 2 additions & 2 deletions opds-2.0.md
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Original file line number Diff line number Diff line change
Expand Up @@ -128,7 +128,7 @@ Publications <em class="rfc">must</em> either be:
- a [Readium Web Publication](https://github.com/readium/webpub-manifest) with no restrictions in terms of access (no payment, no credentials required, no limitations whatsoever)
- or an [OPDS Publication](#41-opds-publication)

Each publication listed in an OPDS feed <em class="rfc">must</em> contain an `images` collection.
Each publication listed in an OPDS feed <em class="rfc">should</em> contain an `images` collection.

**Example**

Expand Down Expand Up @@ -174,7 +174,7 @@ This new collection role is mostly meant to support responsive images across all

Link Objects in `images` <em class="rfc">may</em> include any number of image format, resolution or aspect ratio.

At least one image resource <em class="rfc">must</em> use one of the following formats: `image/jpeg`, `image/png` or `image/gif`.
At least one image resource <em class="rfc">must</em> use one of the following formats: `image/jpeg`, `image/avif`, `image/png` or `image/gif`.

**Example**

Expand Down
6 changes: 3 additions & 3 deletions schema/publication.schema.json
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Expand Up @@ -58,12 +58,13 @@
"minItems": 1,
"allOf": [
{
"description": "At least one image resource must use one of the following formats: image/jpeg, image/png or image/gif.",
"description": "At least one image resource must use one of the following formats: image/jpeg, image/avif, image/png or image/gif.",
"contains": {
"properties": {
"type": {
"enum": [
"image/jpeg",
"image/avif",
"image/png",
"image/gif"
]
Expand All @@ -76,7 +77,6 @@
},
"required": [
"metadata",
"links",
"images"
"links"
]
}