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RonanS-3129 asked RoyLi-MSFT edited

DASH streaming captions/subtitles on Xbox (UWP) not working

Hi, we have an Xbox UWP application that streams VoD content over DASH and we noticed recently that it is no longer displaying subtitles / captions. Anecdotally, it seems like this has only started happening as of the most recent Xbox OS update (August 2021).

These captions are read as TimedMetadataTracks within the current MediaPlaybackItem and when debugging the app I can see that the list of TimedMetadataTracks is empty. However, when running the app as a UWP app on a Windows 10 PC, these tracks ARE visible and the captions are displayed as normal.

I've tried playing some test streams using the Adaptive Streaming sample from the Windows UWP samples (https://github.com/microsoft/Windows-universal-samples/tree/main/Samples/AdaptiveStreaming) and it too fails to display captions for DASH streams when run on Xbox. For example, I've tried with the following DASH and HLS samples:

HLS: https://cdn.theoplayer.com/video/elephants-dream/playlist.m3u8
DASH: http://rdmedia.bbc.co.uk/dash/ondemand/elephants_dream/1/client_manifest-all.mpd

On Xbox the HLS stream displays captions but the DASH one does not. On PC, both the HLS and DASH streams display captions.

Is there an issue with Xbox streaming DASH at the moment? Or is there anything else I could try?

Thanks

windows-uwpwindows-uwp-xamlwindows-uwp-feedback
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Could you please tell me have you test this on different Xbox devices? And would you mind telling us the detailed OS version of your Xbox?

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I've checked it on two Xboxs (one original and one Xbox One S), both on OS version 10.0.22000.1759. The issue was also reported to us on one Xbox Series X (running 10.0.22000.1755)

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@RonanS-3129 Do you have another Xbox with a different OS version? This would help to narrow down the issue and we could know if this issue happens on other versions.

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We're seeing a similar issue with Xbox one and series s and x which have updated to OS version 10.0.22000.1759. It looks like TimedMetadataTracksChanged events on MediaPlaybackItem are not firing for DASH linear. This is critical for our DAI and reporting.

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1 Answer

RoyLi-MSFT avatar image
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RoyLi-MSFT answered

Hello,

Welcome to Microsoft Q&A!

Sorry for the delay. @RonanS-3129 @ChapmanAndySeniorDeveloper-0457 , This has been confirmed to be an issue and it will be implemented at a future date. Thank you for reporting this issue here.

Thank you.


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