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Thread: Reliable UDP Support?

  1. #1

    Default Reliable UDP Support?

    Does Wowza server support Reliable UDP for RTP Streaming?

    Here is a little more background as to why I pose this question.

    I'm trying to stream unicast RTP to a set top box from Wowza server. The stream will play, but audio and video will be out of sync.
    After reading through many Wowza forums related to out of sync A/V, the common response was that the encoder is the problem.

    So I performed a few tests. The particular hardware encoder I'm using has a built-in RTP server, so I can play an RTP on the set top box directly from the encoder. A/V is in sync when streaming directly from the encoder.
    I've tested another streaming server. This server is built by the same vendor as the encoder and set top box. A/V is in sync when streaming from this server to the set top box.

    When streaming RTP from Wowza server to the set top box A/V is out of sync.

    I then took troubleshooting a set further by comparing the SDP files exchanged during stream setup. I've noticed a few differences between the SDP for Wowza server and that of the other server.

    Specifically, the other servers SDP contained the parameters
    x-Accept-Retransmit: our-retransmit
    x-Accept-Dynamic-Rate: 1

    Both are absent in the Wowza SDP. Could these be enabled in Wowza? Am I completely off track?

  2. #2



    If I can't resolve this issue, I will have to tell my employer that Wowza is not able to stream live media to our set top boxes and will have to purchase your competitor's streaming server.

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