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Add webp to image core media types #1347

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merged 6 commits into from
Nov 7, 2020
Merged

Add webp to image core media types #1347

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5e5d4b0
add webp to image core media types
mattgarrish Oct 16, 2020
c9ecbd8
add reference links to issues in change log
mattgarrish Oct 16, 2020
ea9f2b1
revert unrelated change log link
mattgarrish Oct 16, 2020
9e1f0aa
Merge branch 'master' into feature/add-webp
mattgarrish Nov 5, 2020
73148ee
Merge branch 'master' into feature/add-webp
mattgarrish Nov 6, 2020
d2bef44
add note about instability of specs, media type and support on Apple
mattgarrish Nov 6, 2020
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8 changes: 8 additions & 0 deletions epub33/common/js/biblio.js
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Original file line number Diff line number Diff line change
Expand Up @@ -387,6 +387,14 @@ var biblio = {
"US-ASCII": {
"title": ""Coded Character Set - 7-bit American Standard Code for Information Interchange", ANSI X3.4, 1986."
},
"WebP-Container": {
"title": "WebP Container Specification",
"href": "https://developers.google.com/speed/webp/docs/riff_container"
},
"WebP-LB": {
"title": "WebP Lossless Bitstream Specification",
"href": "https://developers.google.com/speed/webp/docs/webp_lossless_bitstream_specification"
},
"W3CProcess": {
"title": "W3C Process Document",
"href": "https://www.w3.org/Consortium/Process/"
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34 changes: 26 additions & 8 deletions epub33/core/index.html
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Expand Up @@ -692,10 +692,8 @@ <h5>Supported Media Types</h5>
<p>If more than one media type is listed, the first one is the preferred media type. The
preferred media type is strongly encouraged for all new EPUB Publications.</p>
</li>

<li><strong>Content Type Definition</strong>—The specification to which the given Core Media
Type Resource has to conform.</li>

<li><strong>Applies to</strong>—The Publication Resource type(s) that the Media Type and
Content Type Definition applies to.</li>
</ul>
Expand All @@ -719,7 +717,6 @@ <h5>Supported Media Types</h5>
<td> [[!GIF]] </td>
<td>GIF Images</td>
</tr>

<tr>
<td id="cmt-jpeg">
<code>image/jpeg</code>
Expand All @@ -743,7 +740,13 @@ <h5>Supported Media Types</h5>
</td>
<td>SVG documents</td>
</tr>

<tr>
<td id="cmt-webp">
<code>image/webp</code>
</td>
<td> [[!WebP-Container]], [[!WebP-LB]] </td>
<td>WebP Images</td>
</tr>

<tr>
<th colspan="3" id="cmt-grp-audio" class="tbl-group">Audio</th>
Expand Down Expand Up @@ -895,6 +898,11 @@ <h5>Supported Media Types</h5>
will monitor support for OPUS in iOS, and may remove OPUS as a core media type if the
level of support is inadequate.</p>
</div>
<div class="issue" data-number="1344">
<p>WebP is currently not defined in a stable specification and its media type has not been
registered with IANA. Apple also only supports WebP on macOS 11. The working group will
continue to monitor these issues.</p>
</div>
</section>

<section id="sec-foreign-restrictions">
Expand Down Expand Up @@ -7837,9 +7845,15 @@ <h2>Allowed External Identifiers</h2>
<tr>
<td>
<ul class="flat">
<li><code>application/mathml+xml</code></li>
<li><code>application/mathml-presentation+xml</code></li>
<li><code>application/mathml-content+xml</code></li>
<li>
<code>application/mathml+xml</code>
</li>
<li>
<code>application/mathml-presentation+xml</code>
</li>
<li>
<code>application/mathml-content+xml</code>
</li>
</ul>
</td>
<td>
Expand All @@ -7850,7 +7864,9 @@ <h2>Allowed External Identifiers</h2>
</td>
</tr>
<tr>
<td><code>application/svg+xml</code></td>
<td>
<code>application/svg+xml</code>
</td>
<td>
<code>-//W3C//DTD SVG 1.1//EN</code>
</td>
Expand Down Expand Up @@ -8945,6 +8961,8 @@ <h3>Substantive changes since <a href="https://www.w3.org/publishing/epub/epub-s
3.2</a></h3>

<ul>
<li>6-Nov-2020: Added WebP to the <a href="#cmt-grp-image">image core media types</a>. See <a
href="https://github.com/w3c/publ-epub-revision/issues/1344">issue 1344</a>.</li>
<li>6-Nov-2020: A <a href="#app-identifiers-allowed">restricted set of external identifiers</a> are
now allowed in publication resources. <a href="#sec-xml-constraints">References to external
entities</a> from the internal DTD subset remain restricted, however. See <a
Expand Down