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Thread: Broken character encoding in closed captions on iOS8

  1. #1
    Join Date
    Mar 2014
    Posts
    10

    Default Broken character encoding in closed captions on iOS8

    Hi,
    we have a problem with broken characters encoding on iOS8 (iPhone), it works well on iOS7.
    Try e.g. this file: http://media.mojemedicina.cz:1935/vo.../playlist.m3u8 Czech characters are broken.
    We are using Wowza 4.1.0 and WebVTT format for closed captions. Subtitles are in UTF-8.
    What's a problem?
    Thanks for help!
    Dominik

  2. #2

    Default

    Hello Dominik,

    Will you kindly zip up your /conf and /logs folders and send them to support@wowza.com to open a ticket.

    Thank you,

    Salvadore

  3. #3

    Default

    Please also include any caption files and smil files you might be using with your email to support.

    Thanks again.

    Salvadore

  4. #4
    Join Date
    Sep 2011
    Posts
    1,931

    Default

    Hi,
    This will now be handled in the created ticket (105672).

    Regards,
    Jason

  5. #5
    Join Date
    Aug 2014
    Posts
    5

    Default

    Hi there,

    Is there any update on this issue? We have the exact same problem.
    It looks like a client (Safari on iOS8?) problem.

    Regards,
    Gerard

  6. #6

    Default

    Hello there and welcome to the Wowza support forum.

    Here is a note from Wowza support regarding iOS 8:
    We are aware that since iOS8 has been available we have seen several issues relating to video delivery, not just Wowza related, and we have already seen several updates from Apple to resolve many video issues.

    At present we are both testing and monitoring the situation however until Apple provide further updates we do also believe there may be on going problems when using iOS8.

    All I can suggest at this time is to take further updates when made available by Apple. We are continuing to look at how we can provide workarounds where possible but as this time do not have further updates for iOS8 issues.
    Kind regards,

    Salvadore

  7. #7
    Join Date
    Mar 2015
    Posts
    1

    Default Character Encoding

    More about......What is Character Encoding

    Vyar

  8. #8
    Join Date
    Apr 2015
    Posts
    2

    Default

    I believe we have the same issue too. Any updates on the issue?

    We are using Wowza 3.6.2 and we have set cupertinoLiveCaptionsUseWebVTT to true. At the very least iOS 8.2 and 8.1.1 doesn't show the text in UTF-8, eg. which are used in Finnish and Swedish. Here is a link for iOS http://vod.tv7.fi:1935/vod/_definst_.../playlist.m3u8. Can you confirm this? If we look at the WebVTT files separately that wowza creates they are correctly UTF-8.

    Please if anyone has insight on this, that will eg. iOS 8.3 fix this or is this something we can fix or workaround with Wowza?

  9. #9
    Join Date
    Apr 2015
    Posts
    2

    Default

    I have now tested with iPhone 4S updated to iOS 8.3 and character encoding problem related to this matter seems to be solved. Finally we can start to serve HLS emdedded with captions!

  10. #10
    Join Date
    Mar 2014
    Posts
    10

    Default

    Yes, encoding is fixed in iOS 8.3, now we have problem only with position of closed captions. They are partly hidden under bottom of screen edge.

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