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Thread: Reading ID3V2FrameComments in Android

  1. #1
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    Mar 2013
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    Default Reading ID3V2FrameComments in Android

    Just wondering if this is possible in theory ?

  2. #2
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    Mar 2013
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    Quote Originally Posted by m4tt_turner View Post
    Just wondering if this is possible in theory ?
    Seems as though there is no support for timed tag reading in the Android API...

    Is there any plan to add EXT-X-PROGRAM-DATE-TIME to m3u8 streams in Wowza ?

    I think that would allow an Android client to know how far it is behind the live stream.
    Ideally we need the generation time (i.e. something close to the real live-feed time for each packet)
    Last edited by m4tt_turner; 03-07-2013 at 12:03 AM.

  3. #3
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    We will consider this for a future release. Thanks for the suggestion

    Richard

  4. #4
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    Quote Originally Posted by rrlanham View Post
    We will consider this for a future release. Thanks for the suggestion

    Richard
    OK, thanks.

    To be a bit more specific.. the spec says:
    The server MAY associate an absolute date and time with a media
    segment by applying an EXT-X-PROGRAM-DATE-TIME tag to its URI. The
    date and time value provides an informative mapping of the timeline
    of the media to an appropriate wall-clock time, which may be used as
    a basis for seeking, for display, or for other purposes.

    The logic on the client would maybe go something like:
    - make a periodic request to playlist.m3u8 (separate from the streaming itself)
    - from that determine which .ts file is currently being played using EXT-X-MEDIA-SEQUENCE
    - grab EXT-X-PROGRAM-DATE-TIME, which should equal the stream time @ the start of the .ts file whose number is EXT-X-MEDIA-SEQUENCE (perhaps the chunk generation time in Wowza, assuming packets are generated once only, held in RAM then passed to each client as appropriate)
    - use that to approximate the position in the stream in Android

    The business requirement here is to make events happen on the client at given stream times (equivalent to subtitling)

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