[mythtv-commits] Ticket #917: MythGallery Fast thumbnail loading using EXIF

[MythTV]

#917: MythGallery Fast thumbnail loading using EXIF
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 Reporter:  Grant Gardner <grant at lastweekend.com.au>  |        Owner:  ijr     
     Type:  patch                                     |       Status:  reopened
 Priority:  minor                                     |    Milestone:  0.20    
Component:  mythgallery                               |      Version:  head    
 Severity:  medium                                    |   Resolution:          
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Changes (by Grant Gardner <grant at lastweekend.com.au>):

  * resolution:  invalid =>
  * status:  closed => reopened

Comment:

 Hi apologies for spamming trac.

 I realise I've got no mythtv cred/karma and my c++ is a bit rusty.
 Anyway, the code below is from the exif demo provided on the libexif site
 and shows how
 to extract thumbnails using libexif. This is what I used to work out how
 to do it.

 {{{
 ...
   } else if (extract_thumbnail) {
      /* No thumbnail? Exit. */
      if (!ed->data) {
         fprintf (stderr, _("'%s' does not contain a thumbnail!"), *args);
         fputc ('\n', stderr);
         return (1);
     }

     /* Save the thumbnail */
     f = fopen (fname, "wb");
     if (!f) {
           fprintf (stderr, _("Could not open '%s' for writing (%m)!"),
 fname);
           fputc ('\n', stderr);
           return (1);
     }
     fwrite (ed->data, 1, ed->size, f);
     fclose (f);
     fprintf (stdout, _("Wrote file '%s'."),
     fname);

 }}}


 I'll re-open the ticket with this new info. Happy for you to close it
 again if you don't like the way it is done in which case I'll see if
 anyone on the dev list knows a better way of getting the thumbnails out.

 Cheers,
       Grant

-- 
Ticket URL: <http://cvs.mythtv.org/trac/ticket/917>
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