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Thread: Audio codec:G711_ALAW isCompatible:false

  1. #1
    Join Date
    Jul 2015
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    6

    Default Audio codec:G711_ALAW isCompatible:false

    Hello.
    I am trying deliver video with video:H.264,mic:G.711. from flash(as3)

    but,wowzastreamingengine_access.log
    LiveStreamPacketizerPacketHandler.handlePacket[liveorigin/_definst_/stream-test]: Audio codec:G711_ALAW isCompatible:false

    can't Wowza use Microphone codec:G.711??
    Flash code(as3)
    var mic:Microphone = Microphone.getMicrophone();
    mic.codec="pcma";
    or
    mic.codec="pcmu";

    It becomes both error......
    please tell me,why..
    Last edited by ayumi_japan; 07-26-2015 at 10:44 PM.

  2. #2

    Default

    You should be able to playback a stream with g.711 audio in Flash RTMP. At present, g.711 is not packetized for RTSP clients and it doesn't work on HLS or HDS clients.

    For RTSP, HLS and HDS clients, you will need to transcode the audio using the Wowza Transcoder using the Audio Only template:
    How to set up and run Wowza Transcoder for live streaming

    Regards,

    Salvadore

  3. #3
    Join Date
    Jul 2015
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    Default

    Salvadore
    Thank you.
    is that not use G.711 in RTSP in wowza?
    I am trying this page http://www.wowza.com/forums/showthre...WebRTC-support
    delivered G.711 in RTP?

  4. #4
    Join Date
    Jun 2011
    Posts
    1,037

    Default

    Hi,
    Generally G.711 playback should be possible from a plash player, but it depends on the implementation of G.711.
    Wowza Streaming Engine will pass the G.711 through to the player in RTMP streams, but it's upto the player how
    to handle it.

    Daren

  5. #5
    Join Date
    Jul 2015
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    6

    Default

    Daren

    Thank you,
    Wowza can publish G.711 on RTSP,but Processing receiver necessity?
    I try it.

    Regard,Ayumi

  6. #6
    Join Date
    Jun 2011
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    1,037

    Default

    Hi,
    Not RTSP streaming for playback yet, but that is coming soon. Right now it should play over RTMP in a flash player for instance.

    Daren

  7. #7
    Join Date
    Jul 2015
    Posts
    6

    Default

    Daren
    Thank you.

    I am trying Camera:H.264 Mic:G.711 Stream publish on RTSP or RTP,but not yet....
    I will wait..
    This had as a reference.
    http://www.wowza.com/forums/showthre...-support/page2

    Regard
    Ayumi

  8. #8
    Join Date
    Jun 2011
    Posts
    1,037

    Default

    Hi,
    RTSP playback of G.711 (a-law/u-law) has been added in the latest 4.2.0.1 update.
    You'll find the update in the MyDownloads section of your Wowza Portal account.

    Daren

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