[mythtv-commits] Ticket #8595: Support reading/writing of rating and playcount with ID3 tags

[MythTV]

#8595: Support reading/writing of rating and playcount with ID3 tags
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 Reporter:  stuartm             |       Owner:  ijr       
     Type:  task                |      Status:  new       
 Priority:  minor               |   Milestone:  0.24      
Component:  Plugin - MythMusic  |     Version:  Trunk Head
 Severity:  medium              |     Mlocked:  0         
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 Primarily this is about maintaining* MythTV metadata, although other apps
 or hardware can benefit from being able to read this information.
 MythMusic can also import ratings/play counts from existing POPM tags.

 The current implementation inserts the POPM frame with an email address of
 music at mythtv.org for identification purposes. There are no immediate plans
 to allow for another address to be used, I see no justification until we
 support multiple users in mythmusic. For reading we use the MythTV POPM
 frame if it exists, otherwise we use the first POPM frame we find. For
 writing we always use the MythTV frame, since we don't prompt before
 writing we need to avoid overwriting existing non-myth frames.

 The patch is a little rough, but it's limited by the existing
 architecture.

 N.B. The roadmap includes adding file hashing to mythmusic in the same way
 that is done now for mythvideo, ultimately this will prevent the issue of
 lost metadata for other tag formats e.g. Flac with Xiph comments.

 (*If files are moved or renamed in mythmusic metadata like track ratings,
 play count and the last play timestamp are lost.)

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Ticket URL: <http://svn.mythtv.org/trac/ticket/8595>
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