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BLayman's avatar
BLayman
Copper Contributor
Jan 06, 2023
Solved

Can't upload VTT caption files

For the past month or so, I have been completely unable to upload .vtt captions files to videos hosted on SharePoint/SP Streams. Every time I try, I receive the following error:   At this poi...
  • RodrigoTarrats's avatar
    RodrigoTarrats
    Jan 06, 2023

    BLayman thanks for taking the time to share your feedback with us, we really value it.  Firstly, my apologies on you not being able to upload your VTT file, could I suggest one alternative before opening a support ticket?

     

    Could you please search online for "VTT file validator" and open one of your choosing?  In the past I have used Live WebVTT Validator (w3c.github.io) in which you take the content of your VTT and paste it directly in the edit box.  It would parse the file and output any potential errors.

     

    The reason I'm suggesting this, is because we actually parse the file for errors prior to uploading the VTT file, but we don't expose those details in the UI.  Please let me know how it goes, and thank you again for feedback!

acm48's avatar
acm48
Copper Contributor
Jun 09, 2023
Well - I figured it out. The English that was autogenerated by Microsoft in Stream includes codes like

WEBVTT

04a28561-2d56-4bd2-8752-269906456064-0
00:00:02.880 --> 00:00:06.608

So I have to strip out that first line before I post my translated transcripts.
RodrigoTarrats's avatar
RodrigoTarrats
Icon for Microsoft rankMicrosoft
Jun 13, 2023

Hi acm48, and thank you for providing additional feedback.  I tried reproducing the behavior by:

 

  1. Generating an English transcript for a video
  2. Downloading, and manually translating the WebVTT file
  3. Uploading the newly translated WebVTT file

I found no issues when uploading the downloaded and updated WebVTT file even when the first lines look like this:

 

 

WEBVTT

ff4c60d3-6292-4955-8002-62a30bae8471-0
00:00:02.640 --> 00:00:06.940
Por 4° año consecutivo,
México experimentó Golden

 

 

I should also let you know that just very recently, we rolled out a feature that provides feedback in case the WebVTT file is malformed, like this one example:

 

 

WEBVTT

The line below should yield an error
ff4c60d3-6292-4955-8002-62a30bae8471-0
00:00:02.640 --> 00:00:06.940
Por 4° año consecutivo,
México experimentó Golden

 

 

 

The feature is already 100% General Availability, so unless you're a Government Cloud tenant you should be able to try it out without going to an external WebVTT validator!  I suspect there might be another error with the file?  Which is why if you feel comfortable, you can send me the VTT and I can run it in case it's something most validators are missing. 

 

Thank you so much for reaching out to us!

  • EvaRosdiana's avatar
    EvaRosdiana
    Copper Contributor
    Nov 07, 2023

    RodrigoTarrats 

    hi, I face the similar issue. 
    i try to upload french caption, vtt uploader can recognize the file. But after i clicked Done, I did not see the file and French language being listed under transcript. 

    i have tried to: 

    1. check the format, all ok. 
    2. Check in live WebVTT validator and all ok 

     

    is this issue with the video itself because I tried to upload similar webvtt caption in other video and it is ok. 

  • acm48's avatar
    acm48
    Copper Contributor
    Jun 13, 2023

    RodrigoTarrats Thanks for the reply. We'll try that next time. We managed a workaround this time.

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