onTextData captions in SMIL file with DVR

Wowza Streaming Engine
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1

Greetings all –

I am running into a problem with closed captions in combination with the nDVR and Transcoder options for a live stream to our Roku channel.

I am currently using a SMIL file to send the adaptive bitrate streams to the Roku player.
In order to get the caption data to show up on the Roku player I have to enable the cupertinoLiveCaptionsUseWebVTT option and add a textstream entry to the SMIL file.

I am working to update our Roku channel to use the DVR options but I cannot use the SMIL file with the text stream entry in combination with the ?DVR tag. it does not work. Also I cannot get webVTT captions to show up on the transcoded name group, but captions work there with the ?DVR tag.

My captions encoder is currently supplying the injected captions with a module they built.
I can also pull in live 608 captions as well. I have either option available.

My end goal is to have our channel with adaptive bitrate DVR playback with captions.

Any thoughts would be highly appreciated.

Thanks.

2

Hello there and thanks for joining our community! I asked for you and was told by a lead engineer that It may not be possible. Do you know if you can get captions working at all with DVR? even for a single bitrate stream?

You will need to send a support ticket so the engineers can take a closer look and test. Thanks.