Wowza Streaming Engine can use the mpeg4-generic or mp4a-latm (3gpp) packetization method to output AAC audio. The default packetization method is mpeg4-generic.
Configure mp4a-latm packetization using Wowza Streaming Engine Manager
- Click the Applications tab and then select your live application in the contents panel.
- On the live application page Properties tab, click Custom in the Quick Links bar or scroll to the bottom of the page.
Note: Access to the Properties tab is limited to administrators with advanced permissions. For more information, see Manage credentials.
- In the Custom area, click Edit.
- Click Add Custom Property, specify the following settings in the Add Custom Property dialog box, and then click Add:
- Path – Select /Root/Application/RTP.
- Name – Enter audioPacketizerAAC.
- Type – Select String.
- Value – Enter com.wowza.wms.rtp.packetizer.RTPPacketizerMPEG4LATM.
- Path – Select /Root/Application/RTP.
- Click Save, and then restart the live application to apply the changes.
Configure mp4a-latm packetization in XML
- Navigate to [install-dir]/conf/[application] and open Application.xml in a text editor.
- Add the audioPacketizerAAC property to the <RTP> container element. The XML looks like this:
<RTP> ... <Properties> <Property> <Name>audioPacketizerAAC</Name> <Type>String</Type> <Value>com.wowza.wms.rtp.packetizer.RTPPacketizerMPEG4LATM</Value> </Property> </Properties> <RTP>
- Restart Wowza Streaming Engine or Wowza Media Server.