Docx extract media as original filenames

["Róbert Nagy" <rnagy.monguz-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>]

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Hello everyone!

I want to covert a docx to a docbook file with --extract-media, so i can 
upload the pictures automatically into a database.
Is there any "hack" to keep the original filename for the extracted 
picture's name + imegaobject fileref's value?

For example...
I have a file what has been pasted into the docx file with this name -> 
picture_upload.png. I want to extract into the /media folder as 
'picture_upload.png', and set the docbook's imegamedia fileref's value to 
'picture_upload.png' or './media/picture_upload.png'.

In the <file>/word/document.xml there is this block, what contains the 
original filename:
<pic:pic xmlns:pic=
"http://schemas.openxmlformats.org/drawingml/2006/picture">
    <pic:nvPicPr>
        <pic:cNvPr id="0" name="picture_upload.png"/>
            <pic:cNvPicPr/>
     </pic:nvPicPr>
     <pic:blipFill>
         <a:blip r:embed="rId21"/>
             <a:stretch>
                 <a:fillRect/>
             </a:stretch>
      </pic:blipFill>
      ...


Its reference is in the <file>/word/_rels/document.xml:
Target="media/image110.png"/><Relationship Id="rId21" Type=
"http://schemas.openxmlformats.org/officeDocument/2006/relationships/image"

And the docbook output is:
<imagedata fileref="./media/image110.png" />

The file's name in the './media' folder is the same as the "Target" value.

Any idea will help :)
Thank you.

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