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Thread: Wowza subtitle support

  1. #1

    Default Wowza subtitle support

    I was looking for using wowza to stream subtitles to iphone native media player.

    I found this thread regarding this in WMS 2 forums.
    http://www.wowza.com/forums/showthre...8512#post78512

    Is this support available with WMS 3?

  2. #2
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    This is supported in 2.2.4.05 and Wowza 3x:

    http://www.wowza.com/forums/content....ideo-on-demand

    Richard

  3. #3
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    Default subtitle support in WMS 3.0

    it is mentioned among new features and documentation. But there is not enough information.

    does this feature come with-in standart libraries? or how can I get the lib file for this featuere

    how should I build the URL?

  4. #4

    Default

    T_L_D,

    Also see this article for reading subtitle info from mp4 files with flash: http://www.wowza.com/forums/content....ubtitle-tracks

  5. #5
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    It looks like you need to add querystring to play command:

    netstream.play("mp4:sample.mp4?audioindex=1&videoindex=1&dataindex=1");
    Richard

  6. #6
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    The first tracks would be 0
    netstream.play("mp4:sample.mp4?audioindex=0&videoindex=0&dataindex=0");
    Richard

  7. #7
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    I am not experinced in plug-in development. As far as I Understand, this class will be in the new version of wms-plugin-collection.jar. How can obtain the new compiled version?

  8. #8
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    The module collection is here:
    http://www.wowza.com/forums/content....ule-Collection

    But that module is not included at present. It will be next week.

    Richard
    Last edited by rrlanham; 10-22-2011 at 06:12 PM.

  9. #9

    Default

    Quote Originally Posted by rrlanham View Post
    This is supported in 2.2.4.05 and Wowza 3x:

    http://www.wowza.com/forums/content....ideo-on-demand

    Richard
    Thanks Richard

    As I am new to Wowza it took me some time to setup and test this

    Although ID3 tags work fine; I was looking for something that native IOS player supports. ID3 tags by themselves are not shown in video played by native IOS player on iphone, I am assuming this solution requires an app or javascript to show subtitles. Please correct me if I am wrong here.

    I have a mp4 file with subtitle tracks, and an ios-stream.smil file.
    <smil>
    <head>
    </head>
    <body>
    <switch>
    <video src="recording.mov" system-bitrate="1084" width="1280" height="720">
    <param name="audioCodecId" value="mp4a.40.2" valuetype="data"/>
    <param name="videoCodecId" value="avc1.66.31" valuetype="data"/>
    </video>
    </switch>
    </body>
    </smil>

    Is there is a way to specify subtitle codec in the smil file so that subtitles are read and transported automatically, Quicktime on mac and native player on IOS displays subtitles in the file correctly.
    (file was added using iTunes to iPhone and then played).

    metadata information of mp4 file
    -------------------------------------------
    Stream #0.0(eng): Audio: aac, 32000 Hz, mono, s16, 1 kb/s
    Metadata:
    creation_time : 2011-10-20 06:30:53
    Stream #0.1(eng): Video: h264, yuv420p, 480x274 [PAR 1:1 DAR 240:137], 429 kb/s, 15.75 fps, 90k tbr, 90k tbn, 180k tbc
    Metadata:
    creation_time : 2011-10-20 06:30:53
    Stream #0.2(eng): Subtitle: tx3g / 0x67337874, 0 kb/s
    Metadata:
    creation_time : 2011-10-20 06:30:58
    Last edited by princeofpersia; 10-24-2011 at 04:43 AM. Reason: spelling correction

  10. #10
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    From what I understand (lacking experience), this requires an objective C iOS application on the iOS client-side to extract. There is not a javascript or "it just works" solution.

    Richard

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