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Thread: shockwave flash crashes on chrome

  1. #1
    Join Date
    Mar 2011
    Posts
    8

    Default shockwave flash crashes on chrome

    HI,

    I'm trying to publish real time video stream of IP camera to web page using adobe flash.

    Everything is working correctly on shockwave flash 10,3,181,36 version, but on newest version of shockwave flash (11.0.1.152) wowza crashes the shockwave flash plug-in.

    Wowza version: 3.0.3
    jwplayer verson: 5.8-viral
    java: sun-java5-jdk

    camera: rtsp://83.1.129.60:554/h264
    retransmited video: http://195.205.86.254/~toplek/mediap...er/camera.html

    Please help

    best regards
    Piotr Polok

  2. #2

    Default

    Hi toplek,

    The audio coming from your camera is encoded in mlaw which is not supported by Wowza. You can either turn off the audio on your camera or ensure that it is encoded in one of the supported formats:

    AAC - AAC, AAC Low Complexity (AAC LC), High Efficiency AAC v1 and v2 (HE-AAC)
    MP3
    Speex
    NellyMoser ASAO

  3. #3
    Join Date
    Mar 2011
    Posts
    8

    Default

    HI Randall,

    I have disabled audio on IP camera but VLC shows that audio is still on. Is there any possibility of turning off audio from wowza?

    best regards
    Piotr Polok

  4. #4

    Default

    I see you have the stream using alaw, which is one of the supported input codecs of the Wowza Transcoder:

    AAC
    MP3
    MPEG-1 Part1 1/ 2
    Speex
    G.711 (a-law and mu-law)

    In the transcoder template, you can set the audio codec to:
    <Codec>Disable</Codec>

    Alternatively you could use a software transcoder such as ffmpeg or vlc to remove or transcode the audio portion. You may also which to check with your docs or the manufacturer of your camera regarding shutting off the audio portion.

    However, I just re-read your original post where you mentioned that it worked fine in previous versions of Flash. Perhaps it would be beneficial discuss this difference in the flash player versions regarding your specific codec, over on the Adobe forums or file a bug report.
    Last edited by randall; 11-07-2011 at 11:46 AM.

  5. #5
    Join Date
    Mar 2011
    Posts
    8

    Default

    HI,

    It looks like G711_ALAW is also not compatible:

    Video codec:H264 isCompatible:true
    Audio codec:G711_ALAW isCompatible:false

    Do you have other idea what could cause Shockwave Flash crashes?

    best regards
    Piotr Polok

  6. #6
    Join Date
    Dec 2007
    Posts
    21,962

    Default

    Piotr,

    Take a look at the VLC transcoding examples at the bottom of this article:

    http://www.wowza.com/forums/content....rver-(MPEG-TS)

    Richard

  7. #7
    Join Date
    Mar 2011
    Posts
    8

    Default

    HI Richard,

    Thank you, transcoding is solving the problem.

    br
    TopLek

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