[Libav-user] Decoding external subtitles

[Mert Gedik]

On Thu, Feb 27, 2014 at 10:16 PM, Anshul <anshul.ffmpeg at gmail.com> wrote:

>
>
> Mert Gedik <gedikmert89 at gmail.com> wrote:
> >Hello,
> >
> >I've made a video player for iOS using ffmpeg libraries with the help
> >of
> >dranger tutorial.
> >It is working well, and now I want to add subtitle feature.
> >
> >I know that, ffmpeg can decode internal subtitle stream, and for a long
> >investigation, I realized that subtitle filter can decode external
> >subtitle.
> >
> >For example,
> >ffplay movie.mp4 -vf subtitles=movie.srt
> >
> >This renders the external subtitle on the screen. I use render word ,
> >as
> >subtitles are drawn on the screen and when I resize to a bigger frame
> >size,
> >the text resolution becomes lower.
> >
> >What I need is using the ffmpeg subtitle decoders but don't want to
> >render
> >it as fflay does, I want to get decoded subtitle data and show it in my
> >UILabel.
> >
> >Is there a way to do this ?
> >
> >Thanks for helping,
> >
> >Regards,
> >
> >-MG
> >
> >
> >------------------------------------------------------------------------
> >
> >_______________________________________________
> >Libav-user mailing list
> >Libav-user at ffmpeg.org
> >http://ffmpeg.org/mailman/listinfo/libav-user
>
> Srt files are simple text file with there timing, if you have time of each
> audio frame, then at the same time u can read srt file directly and at
> correct time you can change ur ui label.
> --
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
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>



Yes ,that's right how ever there are many subtitle formats and
I don't want to implement every subtitle parser by myself ...
Ffmpeg has already many decoders for subtitles, therefore I want to find an
easy way to pass subtitle file to ffmpeg.

but how to do this ?
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