[mythtv-commits] Ticket #9271: Improved teletext text rendering

MythTV mythtv at cvs.mythtv.org
Tue Nov 30 03:32:40 UTC 2010

#9271: Improved teletext text rendering
 Reporter:  markk                    |           Owner:  markk     
     Type:  Developer Task           |          Status:  assigned  
 Priority:  minor                    |       Milestone:  unknown   
Component:  MythTV - Video Playback  |         Version:  0.24-fixes
 Severity:  medium                   |      Resolution:            
 Keywords:                           |   Ticket locked:  0         

Comment (by markk):

 (In [27381]) Refactor TeletextDecoder and TeletextScreen and add a new

 This follows the approach used in the other subtitle and caption classes
 whereby the screen object handles OSD representation of the data, the
 reader object holds the state and data and the decoder object feeds new
 data into the reader.

 This simplifies setup and initialisation of the teletext objects and
 removes the requirement to lock the OSD from the decoder, which was
 causing endless problems.

 The previous behaviour of always decoding teletext packets is also
 reinstated which radically improves responsiveness. Actually decoding
 and parsing the packets is trivial for a modern processor and hence
 should have no impact on performance.

 I will backport to release-0-24-fixes in a few days if there are no
 reported problems.

 Refs #9271

Ticket URL: <http://svn.mythtv.org/trac/ticket/9271#comment:3>
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