Mmh, I tried to follow your advice:
ffmpeg -i jdbc.webm jdbc.mp4
As expected this yields:
goik@hopc XmlmindTest> file jdbc.mp4
jdbc.mp4: ISO Media, MP4 Base Media v1 [IS0 14496-12:2003]
Using the "Add" dialog button the XML reads:
<videoobject>
<videodata fileref="jdbc.webm" format="video/webm">
<multimediaparam name="muted" value="muted"/>
<multimediaparam name="controls" value="controls"/>
</videodata>
<videodata fileref="jdbc.mp4" format="video/mp4"/>
</videoobject>
Unfortunately this results in a different exception as being shown by
the attached png.
Closing XMLMind completely and reloading does not help. Neither does
changing the order:
<videoobject>
<videodata fileref="jdbc.mp4" format="video/mp4"/>
<videodata fileref="jdbc.webm" format="video/webm">
<multimediaparam name="muted" value="muted"/>
<multimediaparam name="controls" value="controls"/>
</videodata>
</videoobject>
Removing the jdbc.webm reference completely also does not help:
<videoobject>
<videodata fileref="jdbc.mp4" format="video/mp4">
<multimediaparam name="controls" value="controls"/>
</videodata>
</videoobject>
My Oracle 1.8 JRE appears to be pretty much standard:
goik@hopc XmlmindTest> java -version
java version "1.8.0_131"
Java(TM) SE Runtime Environment (build 1.8.0_131-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.131-b11, mixed mode)
I've also searched for missing XMLMind plugins but that seems to be fine.
Martin Goik
On 09.07.2017 20:03, Hussein Shafie wrote:
> On 07/09/2017 06:24 PM, Martin Goik wrote:
>>
>> Using XMLMind editor I tried to embed a webm format based video into a
>> Docbook 5.1 document. On
>> https://cloud.xtraservice.de/owncloud/index.php/s/K7fgpF2x17sB9eI you
>> find:
>>
>> 1. A sample Webm file jdbc.webm
>> 2. A Docbook file video.xml embedding jdbc.webm
>> 3. A screen shot showing the exception message in XMLMind's editor pane.
>>
>
> Nothing suprising to that. The WebM video format is not (yet?)
> supported by the Java 1.8 media player.
>
> After adding jdbc.webm, please also add jdbc.mp4 and it will work just
> fine.
>
> The "Unrecognized file signature!" error message will automatically
> disappear because the Java 1.8 media player picks the MP4 file and
> ignores the WebM file.
>
> This is documented in note:
>
> "Specify alternate audio and video formats whenever possible"
>
> http://www.xmlmind.com/xmleditor/_distrib/doc/help/com.xmlmind.xmledit.media.MediaInfoEditor.html
>
>
>
>
>
> ---
> PS: For my test, I've created jdbc.mp4 as follows:
>
> ffmpeg -i jdbc.webm jdbc.mp4
>
> https://ffmpeg.org/
>
> It's fast and it works flawlessly.
>
>
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