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July 11, 2013
Question

hds-live performance issues

  • July 11, 2013
  • 0 replies
  • 460 views

I am seeing some very bad buffering and jumpiness on a live stream im testing. Would appreciate some critique on my configs.

Note - I am using AMS5, but i need to use version 1.0 manifest due to a limitation with our player.

The playback url format is:

http://servername/hds-live/livepkgr/_definst_/stream.f4m

Below are the configs for the stream and AMS/Apache.

Manifest.xml + Event.xml:

<manifest xmlns="http://ns.adobe.com/f4m/1.0">

  <!--<dvrInfo beginOffset="0" endOffset="3600"></dvrInfo>-->

  <media streamId="stream1" bitrate="300"></media>

  <media streamId="stream2" bitrate="700"></media>

  <media streamId="stream3" bitrate="1200"></media>

</manifest>

<Event>

  <EventID>stream</EventID>

  <Recording>

    <FragmentDuration>4000</FragmentDuration>

    <SegmentDuration>400000</SegmentDuration>

    <DiskManagementDuration>1.5</DiskManagementDuration>

  </Recording>

</Event>

livepkgr, application.xml:

<Application>

    <StreamManager>

        <Live>

            <AssumeAbsoluteTime>true</AssumeAbsoluteTime>  

            <PublishTimeout>0</PublishTimeout>

            <AdjustForZeroTimeStampMessages>2</AdjustForZeroTimeStampMessages>

            <AdjustForRecordingRollover>false</AdjustForRecordingRollover>

        </Live>

    </StreamManager>

    <HDS>

        <Recording>

            <FragmentDuration>4000</FragmentDuration>

            <SegmentDuration>400000</SegmentDuration>

            <DiskManagementDuration>1.5</DiskManagementDuration>

            <FrameRate></FrameRate>

            <FramesPerKeyframeInterval></FramesPerKeyframeInterval>

            <KeyframeIntervalsPerFragment></KeyframeIntervalPerFragment>

            <FramePrecision></FramePrecision>

        </Recording>

    </HDS>

</Application>

httpd.conf for hds-live:

<Location /hds-live>

    HttpStreamingEnabled true

    HttpStreamingLiveEventPath "../applications"

    HttpStreamingContentPath "../applications"

          HdsFmsDirPath ".."

    HttpStreamingF4MMaxAge 86400

    HttpStreamingBootstrapMaxAge 2

    HttpStreamingDrmmetaMaxAge 3600

    HttpStreamingFragMaxAge 86400

    Options -Indexes FollowSymLinks

</Location>

Thanks in advance, Stu

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