[FFmpeg-user] Convert srt Subtitle file into ttml subtitle

[Christian Ebert]

* R J on Tuesday, October 05, 2021 at 16:05:16 +0530:
> I want to convert a .srt file into ttml file.
> 
> I tried using below command.
> 
> ffmpeg -i my_srt.srt -y srt-to-ttml.xml -v verbose

How is ffmpeg supposed to know to which format you intend to 
convert?

Either

ffmpeg -i my_srt.srt -f ttml srt-to-ttml.xml

or

ffmpeg -i my_srt.srt srt-to-ttml.ttml

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