[OASIS Issue Tracker] Commented: (OFFICE-3465) ODF CD05-1 10.4.4<draw:image> use of <office:binary-data> unimplementable

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    [ http://tools.oasis-open.org/issues/browse/OFFICE-3465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=22195#action_22195 ] 

Michael Brauer commented on OFFICE-3465:
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Regarding recommended formats: What we must consider here is that images are not inserted by applications, but by the authors of the documents. Further, for good reasons, applications have options to store images in the original format. So, the document authors determine what image formats are used in documents rather than us. We also should also consider the current status of the ODF 1.2 specification. It may be worth to discuss recommendations for image formats whatever these are. But isn't this something for ODF-Next? 

Regarding <office:binary-data>: Of course one could add some advice regarding the possibility to detect the format of the data in <office:binary>. But given that the element exists since ODF 1.0 and given that we heard no complains from implementers, is that really needed? I don't think so. 

> ODF CD05-1 10.4.4 <draw:image> use of <office:binary-data> unimplementable
> --------------------------------------------------------------------------
>
>                 Key: OFFICE-3465
>                 URL: http://tools.oasis-open.org/issues/browse/OFFICE-3465
>             Project: OASIS Open Document Format for Office Applications (OpenDocument) TC
>          Issue Type: Bug
>          Components: Graphics, Needs Discussion, Part 1 (Schema)
>    Affects Versions: ODF 1.2 CD 05
>            Reporter: Dennis Hamilton
>            Assignee: Patrick Durusau
>            Priority: Blocker
>             Fix For: ODF 1.2 CD 06
>
>
> See similar issue OFFICE-3463
> In 10.4.4, the image (however obtained) is apparently parked in the <office:binary-data> and the only allowed attribute on <draw:image> is the <draw:filter-name>.  (There can be no xlink:href and the defaults for the other xlink attributes are apparently not relevant.)
> All that 10.4.5 <office:binary-data> provides base64binary of the image, but we are given no clue what the represented image format is. 
> Although there is a "should" about [SVG] and [PNG] but no indication how to tell what the <office:binary-data> represents (and if this case is relevant to [SVG], but if not, how is the SVG included in the element, or is that not provided for?)
> It is unclear how there is a choice to represent the image any other way than in binary data, unless the alternative is always with xlink:href and it is not permitted to cache the retrieved image in the <draw:image> element (because it would then not be refreshable).
> This is seriously underspecified as well as not being interoperably implementable from the information provided.
> Although ODF 1.1:9.3.2 is not much more specific.  There, the XLink information is described as not necessary when the <office:binary-data> is present, but it is not described as forbidden.  

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