[mythtv-commits] Ticket #2938: Teletext subtitles with DVB-C not fully working

MythTV mythtv at cvs.mythtv.org
Thu Jan 18 21:27:08 UTC 2007

#2938: Teletext subtitles with DVB-C not fully working
 Reporter:  anonymous  |        Owner:  ijr    
     Type:  defect     |       Status:  new    
 Priority:  minor      |    Milestone:  unknown
Component:  mythtv     |      Version:  head   
 Severity:  medium     |   Resolution:         
Changes (by danielk):

  * version:  0.20 => head


 You are talking about the textual subtitles, not the graphic ones, right?

 The textual ones are shown as soon as the are decoded, see
 TeletextDecoder::Decode() in "libs/libmythtv/teletextdecoder.h" and the
 three different "ttd->Decode(" calls in
 "libs/libmythtv/avformatdecoder.cpp". If you want to improve the timing
 for these captions you will need to synthesize a "pts" timestamp for the
 captions and add that timestamp to the TeletextReader::AddTextData() call
 which the TeletextDecoder uses to pass the data to the NuppelVideoPlayer.
 The NVP already has support for timecodes for other types of AddXXXData()
 calls, it shouldn't be too hard to modify the NVP.

Ticket URL: <http://svn.mythtv.org/trac/ticket/2938#comment:2>
MythTV <http://www.mythtv.org/>

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