Re: [docbook-apps] HTML5 Audio + Video multiple sources

[Bob Stayton <bobs@sagehill.net>]

Not quite.  The current xhtml5 stylesheet converts a DocBook videodata 
element to an HTML5 <video> element, but does not handle multiple 
<source> children.  The DocBook TC today approved allowing multiple 
videodata children of videoobject, so now the stylesheet can be changed 
to support a single <video> output with multiple <source> children, if 
you are using the forthcoming DocBook 5.1.
--
Bob Stayton
Sagehill Enterprises
bobs@sagehill.net

On 12/10/2013 2:49 PM, Carlos Araya wrote:
> Bob, wouldn't this be similar to the markup you implemented for the
> ePub3 Stylesheet solution that you worked on? If I remember correctly
> that was built on top of the HTML5 stylesheets, correct?
>
>
> On Sat, Dec 7, 2013 at 4:08 PM, Bob Stayton <bobs@sagehill.net
> <mailto:bobs@sagehill.net>> wrote:
>
>     Hi Peter,
>     This is not yet supported in the stylesheets. It could be, but I'm
>     not sure what the DocBook markup should be.  The mediaobject element
>     currently allows multiple videoobject children, but the stylesheet
>     currently selects only one object for output from mediaobject, based
>     on the role attribute on the object elements.  That lets you specify
>     one videoobject for HTML5 output and a different one for epub3
>     output, and an imageobject for print output.
>
>     If the videoobject allowed multiple videodata elements, then it
>     could output all of them as in your example, mapping the fileref
>     attribute to @src and the format attribute to @type, for example.
>       But that currently is not allowed in DocBook.  If you were to file
>     an RFE on the SourceForge DocBook page, then it would be considered
>     by the DocBook Technical Committee.
>
>     Any other suggestions for a markup scheme?
>
>     --
>     Bob Stayton
>     Sagehill Enterprises
>     bobs@sagehill.net <mailto:bobs@sagehill.net>
>
>
>     On 12/7/2013 12:27 PM, Peter Fleck wrote:
>
>         Hi all,
>
>         Is it possible in html5 output of audio and video to have multiple
>         sources and fallback?
>
>         I'm thinking specifically of for example:
>
>         <video>
>             <source src="video.ogg" type="video/ogg" />
>             <source src="video.mp4" type="video/mp4" />
>             <source src="video.webm" type=" video/webm">
>         </video>
>
>         If tried different ways but haven't been able to do it yet, is
>         it possible?
>
>         Many thanks,
>
>         Peter
>
>
>
>
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