• SEARCH
  • DOWNLOADS
  • MY ACCOUNT
  • Buy (0)
  • CONTACT
  • Free Trial
Wowza Logo
  • PRODUCTS
  • DEVELOPER
  • SOLUTIONS
  • PRICING
  • RESOURCES
  • SUPPORT
  • My Account
  • Buy (0)
  • SEARCH
  • Ask a question
  • Forums
    • Wowza ClearCaster
    • Wowza Streaming Engine
    • Wowza Streaming Cloud
    • Wowza Player
    • Wowza GoCoder SDK
    • Wowza Developer Dojo
    • Topics
    • Questions
    • Articles
    • Users
    • Badges
  • Sign in
  • Community Home /
  • Wowza Streaming Engine /
  • Wowza Transcoder /
avatar image
Question by Cady Maritz · Dec 13, 2012 at 09:36 AM · wowza transcoder

Audio Only Transcoding Icecast/Shoutcast MP3 to AAC. How to?

Hi Guys

I've spent alot of time on Wowza and it does alot for us. I just cannot for the life of me get this particular solution to work.

We are running Wowza Media Server 3 Monthly Edition 3.1.1 build1479 and I want to restream an Icecast MP3 stream and ALSO transcode it to AAC.

My application.xml file in the conf/<application> folder has the stream type as shoutcast to get the stream to deliver. I have a <application>.stream file with the icecast details in.

This stream works fine.

Now the part that bugs me is the transcoding.

I've set the following values in the application.xml file:

<LiveStreamTranscoder>transcoder</LiveStreamTranscoder>

<Templates>"<application>".xml</Templates> (without the quotes, and <application> is actually the application name I put there ie teststream.xml)

The template is based on what Charlie posted here: http://www.wowza.com/forums/showthread.php?18533-How-to-configure-Wowza-Transcoder-to-encode-HE-AAC-audio

But without the mainconcept parameters, because our Wowza server is not yet patched to the required version.

So in my mind the following URL should work:

rtmp://<wowza IP>:1935/<application>/mp4:<application>.stream_aac

But it doesn't.

Is there something I'm missing?
Comment

People who like this

0 Show 0
10 |600 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

1 Reply

· Add your reply
  • Sort: 
avatar image

Answer by Richard Lanham · Dec 13, 2012 at 12:24 PM

Have you disable the video portion, since it is audio only? Show the template you are using.

Run Wowza in stand-alone (/bin/startup.bat) so you can see log output in the console. What renditions are actually created? "<application>.stream_acc" doesn't seem right, unless you named your stream the same as the application. What does Wowza show it is transcoding?

Richard
Comment

People who like this

0 Show 1 · Share
10 |600 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users
avatar image Cady Maritz · Dec 13, 2012 at 02:45 PM 0
Share
Here is the template that I'm using:

<!-- Example template for audio only transcoding to AAC from any support audio codec -->
<Root>
	<Transcode>
		<Encodes>
			<!-- Example Encode block for source, not required unless Member of StreamNameGroup. --> 
			<Encode>
				<Enable>true</Enable>
				<Name>aac</Name>
				<StreamName>mp4:${SourceStreamName}_aac</StreamName>
				<Video>
					<!-- H.264, PassThru, Disable -->
					<Codec>PassThru</Codec>
					<Bitrate>${SourceVideoBitrate}</Bitrate>
					<Parameters>
					</Parameters>
				</Video>
				<Audio>
					<!-- AAC, PassThru, Disable -->
					<Codec>AAC</Codec>
					<Bitrate>32000</Bitrate>
					<Parameters>
					</Parameters>
				</Audio>
				<Properties>
				</Properties>
			</Encode>
		</Encodes>
		<Decode>
		</Decode>
		<StreamNameGroups>
		</StreamNameGroups>
		<Properties>
		</Properties>
	</Transcode>
</Root>


I'll feed back on the wowza output a bit later. This is a production machine so I can't stop it and start it at random.

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Follow this Question

Answers Answers and Comments

1 Person is following this question.

avatar image

Related Questions

Article: How to configure NVIDIA NVENC accelerated encoding on Amazon EC2 (G2, NVENC) 1 Answer

Is possible transconding files on demand? 6 Answers

playlist.m3u8 missing values? (Playlist does not contain a TARGETDURATION tag) 3 Answers

Input with multiple audio streams 5 Answers

hardware recommended to transcode 4 video streams 1 Answer

Hot Topics
  • AWS Hosting
  • Mobile SDK
  • Deployment Options
  • Load Balancing
  • Content Security
Product Sign-in
  • Wowza Streaming Cloud
  • Wowza Player
Under the Hood
  • Developer Tools
  • Wowza System Status
  • Test Players
  • Developer IDE
Resellers
  • Find a Reseller
  • Reseller Portal
  • Become a Reseller
Company
  • About Us
  • Blog
  • News
  • Events
  • Careers
  • Customers
  • Partners
  • Contact Us
Stay Connected
Get Monthly Newsletter
Select a Language
  • English
    • English
    • Español
    • 日本語
    • 한국어
    • हिन्दी भाषा
    • 中文
    • русский язык

© 2005–2019 Wowza Media Systems, LLC. All rights reserved.   Terms | Privacy | Trademarks | Legal


Enterprise
Social Q&A

  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Create an article
  • Forums
  • Wowza ClearCaster
  • Wowza Streaming Engine
  • Wowza Streaming Cloud
  • Wowza Player
  • Wowza GoCoder SDK
  • Wowza Developer Dojo
  • Explore
  • Topics
  • Questions
  • Articles
  • Users
  • Badges