[Bugs] #4470 Record UNSP: Record: Don't save preview encoded

[Sugar Labs Bugs]

#4470: Record: Don't save preview encoded
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    Reporter:  godiard                    |          Owner:  dsd        
        Type:  defect                     |         Status:  new        
    Priority:  Unspecified by Maintainer  |      Milestone:  0.98       
   Component:  Record                     |        Version:  Unspecified
    Severity:  Unspecified                |       Keywords:             
Distribution:  Unspecified                |   Status_field:  Unconfirmed
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Comment(by manuq):

 For the preview file format:

 Record is a special case as it uses very loosy compression if low quality
 is set for the taken picture.

 As a rule of digital graphics, you don't want loosy compression in small
 images like thumbnails.  See freedesktop.org spec as reference:

 http://standards.freedesktop.org/thumbnail-spec/thumbnail-
 spec-0.8.0.html#AEN144

 But if we enlarge the size of Sugar's preview, then I would favor a move
 to a loosy format like JPEG.

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Ticket URL: <http://bugs.sugarlabs.org/ticket/4470#comment:3>
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