[mythtv-users] "phantom" subtitles on DVD

[Ian Evans]

On Sat, Nov 22, 2014 at 9:28 PM, Ian Evans <dheianevans at gmail.com> wrote:

>
>
> On Sun, Sep 22, 2013 at 9:26 AM, Jim Stichnoth <stichnot at gmail.com> wrote:
>
>> On Sat, Sep 21, 2013 at 7:30 PM, Ian Evans <dheianevans at gmail.com> wrote:
>>
>>> On Sat, Sep 21, 2013 at 9:51 PM, Doug Lytle <support at drdos.info> wrote:
>>>
>>>> Ian Evans wrote:
>>>> > Any tweaks I should be looking at?
>>>>
>>>> I've seen it happen many times.  I use SubtitleEditor to correct the
>>>> timings.
>>>>
>>>>
>>> Thanks, Doug, I'll take a look at that. Just strange that they don't
>>> even appear for the first 10 mins or so. If I look at the srt file in
>>> mousepad, all the dialogue is there.
>>>
>>
>> I have a number of DVDs that claim to have closed captions, but whose
>> display in MythTV is sporadic at best.  From what you're describing (all
>> caption text seems to be intact in the .srt file), it sounds like the
>> timecodes might be messed up in the original DVD MPEG source.  Do the
>> timecodes in your .srt file look reasonable?  I.e. the duration of each
>> subtitle, and the end time of one subtitle compared to the start time of
>> the next subtitle.
>>
>> BTW, the closed captions are encoded as special packets in the MPEG
>> file.  It is up to the player to render them onto the video image and/or
>> insert them into the analog VBI output signal.  Only the former is possible
>> when using component or HDMI output.  MythTV has never done the latter,
>> though commercial DVD players probably do.
>>
>>
>>
> Sorry...been a long while since I played with this.
>
> Anyhoo...was able to grab an srt file for the video. Watching in myth it
> was terribly often off, e.g. person left the room and then their dialogue
> would appear. I downloaded the Windows version of Subtitle Edit and when I
> open the files on my desktop the audio and subtitles were perfectly synced.
> I had done nothing. Why would they be off in Myth?
>
> Just curious if SE does some autofixing when it loads. Don't have access
> to the mythbox right now as the missus is asleep. Should I resave the .srt
> file and check the myth in the morning?
>

Just checked. The captions are still out of sync, off by five seconds,
sometimes ten or more despite the fact that they're perfect in Windoze.

I'm wondering if this is a skipping issue I saw in some threads. The film
opens with a few minutes of silent action so I always skip to where the
dialogue starts.

Further info:

.mkv video
external .srt file
i.e. the file browser has title.mkv and title.srt

Thanks
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