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Wer mit Wowza einen HTTP-Livestream über CloudFront ausliefern möchte, der sollte die Caching-Einstellungen optimieren:

<HTTPStreamer>
    <Properties>
        <!-- HTTP origin mode: on, off -->
        <Property>
            <Name>httpOriginMode</Name>
            <Value>on</Value>
        </Property>

        <!-- Apple HLS: cache control -->
        <Property>
            <Name>cupertinoCacheControlPlaylist</Name>
            <Value>max-age=1</Value>
        </Property>
        <Property>
            <Name>cupertinoCacheControlMediaChunk</Name>
            <Value>max-age=3600</Value>
        </Property>

        <!-- Microsoft Smooth Streaming: cache control -->
        <Property>
            <Name>smoothCacheControlPlaylist</Name>
            <Value>max-age=1</Value>
        </Property>
        <Property>
            <Name>smoothCacheControlMediaChunk</Name>
            <Value>max-age=3600</Value>
        </Property>
        <Property>
            <Name>smoothCacheControlDataChunk</Name>
            <Value>max-age=3600</Value>
        </Property>

        <!-- Adobe HDS: cache control -->
        <Property>
            <Name>sanjoseCacheControlPlaylist</Name>
            <Value>max-age=1</Value>
        </Property>
        <Property>
            <Name>sanjoseCacheControlMediaChunk</Name>
            <Value>max-age=3600</Value>
        </Property>

        <!-- Apple HLS: transport stream counter -->
        <Property>
            <Name>cupertinoOnChunkStartResetCounter</Name>
            <Value>true</Value>
            <Type>Boolean</Type>
        </Property>
    </Properties>
</HTTPStreamer>

<Name>httpOriginMode</Name>

</Property>

<Name>cupertinoCacheControlPlaylist</Name>

</Property>

<Name>cupertinoCacheControlMediaChunk</Name>

</Property>

<Name>smoothCacheControlPlaylist</Name>

</Property>

<Name>smoothCacheControlMediaChunk</Name>

</Property>

<Name>smoothCacheControlDataChunk</Name>

</Property>

<Name>sanjoseCacheControlPlaylist</Name>

</Property>

<Name>sanjoseCacheControlMediaChunk</Name>

</Property>

<Name>cupertinoOnChunkStartResetCounter</Name>

<Type>Boolean</Type>

</Property>

</Properties>

</HTTPStreamer>

und

<LiveStreamPacketizer>
    <Properties>
        <Property>
            <Name>httpRandomizeMediaName</Name>
            <Value>true</Value>
            <Type>Boolean</Type>
        </Property>
    </Properties>
</LiveStreamPacketizer>

<Name>httpRandomizeMediaName</Name>

<Type>Boolean</Type>

</Property>

</Properties>

</LiveStreamPacketizer>

andernfalls nervt insbesondere beim Neustarten des Streams der gecachte Status “kein Video gefunden”

Letztendlich hat mir das nicht weitergeholfen, aber da ich recht lange danach googlen musste: So geht’s [Quelle]:

mediaPlayer.addEventListener(LoadEvent.LOAD_STATE_CHANGE, onLoadStateChange);

private function onLoadStateChange(e:LoadEvent)
{
  if(e.loadState == LoadState.READY)
  {
    var nsLoadTrait:NetStreamLoadTrait = 
      mediaPlayer.media.getTrait(MediaTraitType.LOAD) as NetStreamLoadTrait;
    var ns:NetStream = nsLoadTrait.netStream;
  }
}

mediaPlayer.addEventListener(LoadEvent.LOAD_STATE_CHANGE, onLoadStateChange);

private function onLoadStateChange(e:LoadEvent)

{

if(e.loadState == LoadState.READY)

{

var nsLoadTrait:NetStreamLoadTrait =

mediaPlayer.media.getTrait(MediaTraitType.LOAD) as NetStreamLoadTrait;

var ns:NetStream = nsLoadTrait.netStream;

}

Auf LoadEvent.LOAD_STATE_CHANGE kann man wohl auch prüfen [Quelle], ka, ob das nötig ist:

mediaPlayerSprite.mediaPlayer.addEventListener(
  MediaPlayerCapabilityChangeEvent.CAN_PLAY_CHANGE, capabilityHandler);

private function capabilityHandler(event:MediaPlayerCapabilityChangeEvent):void
{
  if(event.type == MediaPlayerCapabilityChangeEvent.CAN_PLAY_CHANGE)
  {
    if (mediaPlayerSprite.media.hasTrait(MediaTraitType.LOAD))
    {
      mediaPlayerSprite.media.getTrait(MediaTraitType.LOAD)
        .addEventListener(LoadEvent.LOAD_STATE_CHANGE, onLoadStateChange);
    }
  }
}

mediaPlayerSprite.mediaPlayer.addEventListener(

MediaPlayerCapabilityChangeEvent.CAN_PLAY_CHANGE, capabilityHandler);

private function capabilityHandler(event:MediaPlayerCapabilityChangeEvent):void

{

if(event.type == MediaPlayerCapabilityChangeEvent.CAN_PLAY_CHANGE)

{

if (mediaPlayerSprite.media.hasTrait(MediaTraitType.LOAD))

{

mediaPlayerSprite.media.getTrait(MediaTraitType.LOAD)

.addEventListener(LoadEvent.LOAD_STATE_CHANGE, onLoadStateChange);

}

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