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Thread: Why wowza not support high profile h264

  1. #1
    Join Date
    Oct 2013
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    22

    Default Why wowza not support high profile h264

    Hi,
    Why wowza only support iphone 3gs,4s. and only support main profile and base profile ? and it not support high profile h264 ?

  2. #2

    Default

    These are iOS limitations, not Wowza limitations.

    Salvadore

  3. #3
    Join Date
    Oct 2013
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    Default

    How android android platform, wowza support to it in high profile, live stream and VOD ?

  4. #4

    Default

    Android only supports a profile of baseline as well.

    Here are the supported media formats for Android

    And here are the supported media formats for iOS

    Salvadore

  5. #5
    Join Date
    Oct 2013
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    Default

    OKay thanks, Salvadore. BUt why i use RTSP protocol long time Latency compare HTTP stream ?

  6. #6

    Default

    This is from the documentation on Wowza's website:
    Android: Most Android devices support RTSP/RTP streaming. Newer Android devices that are running version 2.2 (Froyo) or later also support Adobe Flash player 10.1 and can play RTMP and Adobe HDS streams. Android devices can't play MP3 streams over RTSP/RTP in any combination (audio/video or audio only). Android devices that support Flash player 10.1 can play MP3 using RTMP or Adobe HDS. When streaming to an Android device using RTSP/RTP, the RTP portion must flow over UDP. Android doesn't support RTSP/RTP interleaved (RTP over TCP). This means that if UDP is unavailable for RTP playback, RTP over TCP won't work as a failover and your stream won't play.

    It is recommended to use RTSP when streaming to Android to reach the greatest number of clients (regardless of device) trying to view the stream.

    Salvadore

  7. #7
    Join Date
    Oct 2013
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    22

    Default

    How many greatest number of clients Salvandore ?
    Could you explain " Android doesn't support RTSP/RTP interleaved (RTP over TCP)" ?

  8. #8

    Default

    When you do rtsp streaming from VLC, it does it over UDP first, then failsover if necessary to TCP (interleave), but Android does not have that capability.

    UDP is the "fire and forget" protocol. No error checking. Very efficient but prone to network problems, lost packets and packets out of order.

    Whereas TCP (interleave) confirms every packet, and the source re-sends as necessary. So it is slower, but more reliable. HTTP uses TCP.

    Salvadore

  9. #9

    Default

    Here is a more detailed explanation of the two:
    Difference between TCP and UDP

    Salvadore

  10. #10
    Join Date
    Oct 2013
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    22

    Default

    I know the difference, but How many greatest number of clients Salvandore ?

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