These properties provide a mechanism to provide a quicker playback time for connecting RTMP clients.
Add these into Streams/Properties in Application.xml:
<Property>
<Name>instantOn</Name>
<Value>true</Value>
<Type>Boolean</Type>
</Property>
<Property>
<Name>instantOnBufferTime</Name>
<Value>3000</Value>
<Type>Integer</Type>
</Property>
It is not recommended to be lower than 3000.