[mythtv-users] Subtitle sync

[Ben Healy]

----- Original Message -----

> From: Michael T. Dean <mtdean at thirdcontact.com>
> To: Discussion about MythTV <mythtv-users at mythtv.org>
> Sent: Friday, 11 March 2016, 22:51
> Subject: Re: [mythtv-users] Subtitle sync
> 
> On 03/11/2016 01:09 AM, Ben Healy wrote:
>>  From: Jean-Yves Avenard
>> 
>>>  On 10 March 2016 at 13:39, Ben Healy wrote:
>>> 
>>>>    Hi All
>>>> 
>>>>    I posted something in the forum but had no luck so trying on the 
> mailing
>>>>  list.
>>>>    I was using myth 0.27.6, now upgraded to 0.28 from mythbuntu ppa 
> on an ASUS
>>>>  celeron chromebox with intel graphics.
>>>>    I'm in Australia recording DVB which uses Teletext subtitles.
>>>> 
>>>> 
>>>>    The issue I'm facing is the Teletext subtitles are appearing 
> slightly
>>>>  ahead of the video/audio, so on a scene with a lot of quick 
> dialogue the
>>>>  subtitles have been and gone before the person speaks.
>>>> 
>>>>    I am seeing this issue with 0.27 and 0.28. I setup another 
> frontend on a PC
>>>>  with better specs and an nvidia card and saw the same issue.
>>>>    I see reference to a TOGGLESUBDELAY action in the wiki and 
> it's
>>>>  referenced in the menu_playback.xml file, but when subtitles are 
> enabled that
>>>>  menu item doesn't appear. I also can't find it in the 
> frontend playback
>>>>  keybindings. I presume I could fix my issue with this if I could 
> find this
>>>>  setting.
>>>  Press Menu , select Subtitles. From there's there's an Adjust 
> entry.
>>>  You can set the delay +/- 5s
>>  When I press Menu, select Subtitles, I don't have an entry to adjust 
> the delay. There is an entry to adjust zoom, but not delay.
>> 
>>  I'm using the Blue Abstract Theme, but I've switched to a few other 
> themes and the behaviour is the same for me.
> 
> The option to adjust subtitle delay is only shown (meaning only usable) 
> for text subtitles and raw text subtitles, not for teletext 
> captions/menus nor NTSC/ATSC captions nor DVD subtitles/menus nor AV 
> subtitles.  This is why it's there for external subtitles (srt).
> 
> This is also why it's not a key binding--because it only applies for a 
> limited subset of subtitle types, so allowing the user to display it 
> whenever would imply it would work whenever (and ignoring their request 
> to do something wouldn't be user friendly).  Therefore, it's only 
> accessible via the menu, which is dynamically generated to only show the 
> option when it can be applied.
> 
> Mike
> 


Thanks Mike for the explanation of why I can't see the subtitle delay menu option and keybinding.

Thanks JYA for confirming that Teletext subtitles are in sync for you.

It must be something to do with the configuration of my system, so I'll look into it further but if anyone has any suggestions as to what logging options might help I would appreciate it.

Thanks
Ben