#4583 NORM Untriag: totem corrupts/changes datastoreObject thumb data

[Zarro Boogs per Child]

#4583: totem corrupts/changes datastoreObject thumb data
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  Reporter:  erikb         |       Owner:  marco    
      Type:  defect        |      Status:  new      
  Priority:  normal        |   Milestone:  Untriaged
 Component:  totem-player  |     Version:           
Resolution:                |    Keywords:           
  Verified:  0             |  
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Comment(by tomeu):

 Replying to [comment:3 Eben]:
 > Well, first things first, the preview really needs to be stored in a
 canonical format.  Either we need to enforce this by returning an error if
 an activity provides a format other than .png (if that's preferred, and I
 think it is a good choice), or we need to convert other formats to the
 chosen format internally.  Regardless of how the thumbnail is created, the
 format needs to be standardized.

 We are already "standardized" in binary png, 300x200 px. I'm not sure we
 should enforce it, specially as activities interact directly with the DS
 and this doesn't look into the content of the metadata.

 Wouldn't suffice a note in the HIG?

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Ticket URL: <https://dev.laptop.org/ticket/4583#comment:7>
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