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Thread: Having problem with setting up caption for iOS device

  1. #1
    Join Date
    Mar 2012
    Posts
    7

    Default Having problem with setting up caption for iOS device

    Hello.

    Recently, Wowza media server has been upgraded to 3.5 and I tested for iOS vod streaming.

    I tried few steps to apply caption for iOS embedded player, but I failed some reason.


    Test Case 1.
    How to use Wowza Media Server to serve caption files for video on demand streaming
    (http://www.wowza.com/forums/content....mand-streaming)
    <video width=400 height=300
            src="http://10.0.0.10:1935/vod/mp4:sample.mp4/playlist.m3u8">
        <track kind="subtitles" label="English subtitles" 
                src="http://10.0.0.10:1935/vod/sample_eng.vtt" srclang="eng" default></track>
        <track kind="subtitles" label="Korean subtitles" 
                src="http://10.0.0.10:1935/vod/sample_kor.vtt" srclang="kor" default></track>
    </video>
    with this example, I was able to load iOS embedded player from Mobile Safari but there was only video but no subtitle what so ever.


    Test Case 2.
    How to configure closed captioning for live streaming
    (http://www.wowza.com/forums/content....live-streaming)

    With this sample, I was able to bring closed caption from iOS embedded player but only limited languages are supported.

    I assume this problem cused by limitation of CEA-608 and I dont think Wowza supports CEA-708 "yet"

    English Closed Caption works perfectly but not some other foreign languages(Chinese/Japanese/Korean).

    I need to load Chinese/Japanese/Korean subtitle to iOS embedded player.

    Hopefully someone already figure out how to do this with Wowza 3.5+


    Thanks.

  2. #2
    Join Date
    Jun 2011
    Posts
    1,047

    Default

    Hi,
    Please provide a sample .vtt file that you were using for Test case 1
    Please send this to support@wowza.com and reference this thread.

    Yes Wowza supports CEA-608, which does not support non-Roman Alphabet languages.

    - Daren

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