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Thread: No Audio on iPhone

  1. #1
    Join Date
    Jan 2014
    Posts
    3

    Default No Audio on iPhone

    Hello!

    We are testing the Wowza Server and experience the follow problem:

    -> On Android, everything works fine (Áudio & Vídeo).
    -> On iPhone (iOS Devices), NO AUDIO, only image ...

    We setup the Transcoder as posted here http://www.wowza.com/forums/content.php?304 but no solution.
    I know the transcoder is working, because we got a wattermark on the video, but still no audio.

    Your help is much appreciated.

    Thanks,
    Rafael

  2. #2

    Default

    Hi. Can you tell us what audio codec you are sending to the Transcoder?

    And do you see any clues to this issue in the logs? Start Wowza in stand-alone (/bin/startup.bat) mode, what do you see in the console?

    Salvadore

  3. #3
    Join Date
    Jan 2014
    Posts
    3

    Default

    LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf]: Fragment duration greater than suggested range of 1-4 seconds. Adjust keyframe interval accordingly: Fragment durations: [4.5,1.8,2.7]
    WARN server comment 2014-01-07 06:56:09 - - - - - 51959.556 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_source]: Fragment duration greater than suggested range of 1-4 seconds. Adjust keyframe interval accordingly: Fragment durations: [4.5,1.8,2.7]
    WARN server comment 2014-01-07 06:56:09 - - - - - 51959.631 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_360p]: Fragment duration greater than suggested range of 1-4 seconds. Adjust keyframe interval accordingly: Fragment durations: [5.0,4.5,1.8]
    WARN server comment 2014-01-07 06:56:09 - - - - - 51959.632 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_160p]: Fragment duration greater than suggested range of 1-4 seconds. Adjust keyframe interval accordingly: Fragment durations: [4.5,1.8,2.7]
    WARN server comment 2014-01-07 06:56:13 - - - - - 51963.468 - - - - - - - - Publisher.publish: Stream name already in use: bbb14raf_source
    WARN server comment 2014-01-07 06:56:13 - - - - - 51963.469 - - - - - - - - Publisher.publish: Stream name already in use: bbb14raf_360p
    WARN server comment 2014-01-07 06:56:13 - - - - - 51963.47 - - - - - - - - Publisher.publish: Stream name already in use: bbb14raf_160p
    WARN server comment 2014-01-07 06:56:23 - - - - - 51973.915 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf]: Fragment duration greater than suggested range of 1-4 seconds. Adjust keyframe interval accordingly: Fragment durations: [1.8,4.1,4.1]
    WARN server comment 2014-01-07 06:56:24 - - - - - 51974.672 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_source]: Fragment duration greater than suggested range of 1-4 seconds. Adjust keyframe interval accordingly: Fragment durations: [1.8,4.1,4.1]
    WARN server comment 2014-01-07 06:56:24 - - - - - 51975.277 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_160p]: Fragment duration greater than suggested range of 1-4 seconds. Adjust keyframe interval accordingly: Fragment durations: [1.7,4.1,4.1]
    WARN server comment 2014-01-07 06:56:24 - - - - - 51975.277 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_360p]: Fragment duration greater than suggested range of 1-4 seconds. Adjust keyframe interval accordingly: Fragment durations: [1.7,4.1,4.1]
    WARN server comment 2014-01-07 07:29:10 - - - - - 53940.522 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf]: Timecode out of order [audio]: 19771210000:19771212244
    WARN server comment 2014-01-07 07:29:10 - - - - - 53941.297 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_160p]: Timecode out of order [audio]: 19771210000:19771212244
    WARN server comment 2014-01-07 07:29:10 - - - - - 53941.299 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_source]: Timecode out of order [audio]: 19771210000:19771212244
    WARN server comment 2014-01-07 07:29:10 - - - - - 53941.297 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_360p]: Timecode out of order [audio]: 19771210000:19771212244
    #Version: 1.0
    #Start-Date: 2014-01-07 07:32:21 EST
    #Software: Wowza Media Server 3.6.4 build9641
    #Date: 2014-01-07
    #Fields: x-severity x-category x-event date time c-client-id c-ip c-port cs-bytes sc-bytes x-duration x-sname x-stream-id x-spos sc-stream-bytes cs-stream-bytes x-file-size x-file-length x-ctx x-comment
    WARN server comment 2014-01-07 07:32:55 - - - - - 34.253 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf]: Fragment duration greater than suggested range of 1-4 seconds. Adjust keyframe interval accordingly: Fragment durations: [0.6,2.1,4.1]
    WARN server comment 2014-01-07 07:32:55 - - - - - 35.067 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_source]: Fragment duration greater than suggested range of 1-4 seconds. Adjust keyframe interval accordingly: Fragment durations: [0.6,2.1,4.1]
    WARN server comment 2014-01-07 07:32:56 - - - - - 35.52 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_360p]: Fragment duration greater than suggested range of 1-4 seconds. Adjust keyframe interval accordingly: Fragment durations: [0.6,2.1,4.1]
    WARN server comment 2014-01-07 07:32:56 - - - - - 35.523 - - - - - - - - LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_

  4. #4

    Default

    What is the source of the stream?
    What are the encoder settings?
    I.e.: frames per second, GOP length(keyframe interval) audio codec, sample rate?

    Try different settings in the encoder. Changing audio and video details might fix this.

    LiveStreamPacketizerSmoothStreaming.handlePacket[live/_definst_/bbb14raf_360p]: Timecode out of order [audio]: 19771210000:19771212244
    Generally this indicates an encoder issue. It also could be an issue when the machine CPU utilization, or GPU utilization, is maxed out. To debug, see How to debug AAC or MP3 timecode issues with cupertino packetization. You may also want to enable this module:
    How to enable advanced monitoring and resetting of MediaCaster streams

    If you do not need to stream to Silverlight clients you can remove smoothstreamingpacketizer from the <Streams><LiveStreamPacketizers> list in your Application.xml file and see if that fixes this.

    Salvadore

  5. #5
    Join Date
    Jan 2014
    Posts
    3

    Default

    Thanks for your help! It works.
    Adjusting the encoder settings and using a right trancode profile, I m now able to use audio and video to iphone.

    Now, I m not able to use RSTP output to android devices. There is some restrictions?

  6. #6

    Default

    Your welcome. glad I could help.

    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.

    Take a look at this guide if you are still having trouble with Android:
    How to troubleshoot RTSP/RTP playback

    Salvadore

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