How to set up and run Wowza Transcoder AddOn for live streaming

[rmavro]

To transcode from Windows Media type, see www.discovervideo.com

[smaddock]

Does the WowzaAudioOnly MediaListRendition take the place of the steps in the referenced article, or do some or all of the steps in that article still need to be in place?

[rrlanham]

It takes the place of it.

Richard

[smaddock]

Whoops, just came back to edit my comment... without the updates to Application.xml listed in the referenced article, the WowzaAudioOnly MediaListRendition will add a playlist to the NGRP, but it's void of any segments. Not sure if that's a bug, but I needed to follow the steps in both articles to get it to stream correctly.

[broaska]

Richard, we have a question about the Transcoder Add-On. We have our Wowza setup working very nicely and are now looking to extend functionality. What we would like to know is does the Transcoder Add-On allow us to ingest a single stream and output it at several different bitrates? For example we would would like to take our ingest stream and then make it available to a STB, Mobile Phone, and PC without sending in a second stream from our encoder. Is this possible? We are trying to make sure this is what this does before we purchase it. Currently we are using multiple encoders to provide HD/SD streams. Thanks!

[rrlanham]

Yes, the Wowza Transcoder can transrate (what you describe) and/or transcode.

Richard

[broaska]

Yes, the Wowza Transcoder can transrate (what you describe) and/or transcode.

Richard

Thanks Richard, we have purchased this now. Would you recommend we update our Wowza installation when using this? We are currently running 3.0.2 build866 Perpetual.

Thanks

[lisa_w]

I would recommend you update to the latest code which is 3.1.1. Links to the installer for 3.1.1, a patch to upgrade from 3.x to 3.1.1 and release notes can be found here.

-Lisa

[sbabiy]

Is it posible to set the frame rate for a transcoded video?

Thanks,
Sergey

[rrlanham]

I don't think so, just KeyFrameInterval

Richard

[sc4venger]

Is it possible to transcode a LIVE VP6/MP3 stream for playback on IOS?

[rrlanham]

No, VP6 is not supported for playback in iOS. It will only work in Flash RTMP clients. You can use the Wowza Transcoder.

http://www.wowza.com/forums/content....wza-Transcoder

Richard

[StressedOut]

Hi, any news on dynamic overlays for the transcoder?

[scanferla]

The "transcoded" video gets recorded / stored automatically? If not, what would I have to do?

PS: I'm already successfully recording "non-transcoded" videos with the LiveStreamRecord AddOn

[rrlanham]

Transcoded video is not stored automatically. You can use the LiveStreamRecord package with transcoded streams just as you would any live stream

Richard

[bnystrom]

I may have a situation where we are getting RTP IP cams that are encoding using profile:High, level:4.0, which is causing issues with some mobile device playback. I'm not sure yet if there are any options at the camera to change that. I think for compatibility reasons we would like level:3.0. Will the transcoder help with that? I've seen reference to the ability to define "Baseline/Main/High", but not seen any settings for level.

Bryan

[rrlanham]

Bryan,

Yes, the Wowza Transcoder can encode to Baseline 3 profile, which can be played in most devices that are able to stream at all.

Richard

[scanferla]

Thanks Richard,

Is there a way to know, from a mobile page (without Flash), if a stream is live? As I will provide both live and recorded versions of the same stream, but the application URL is different, for example:
Live: http://[wowza-ip-address]/videochat/[stream-name]/playlist.m3u8
Recorded: http://[wowza-ip-address]/vods3/_definst_/mp4:amazons3/bucket/[stream-name].mp4/playlist.m3u8

If I'm able to know if a specific stream is live or not, I can provide the correct link to my users.

Thanks in advance!

Gustavo

[rrlanham]

Gustavo,

You could do something like this with HTTPProvider:

package test;

import java.io.*;
import java.util.Iterator;
import java.util.List;
import java.util.Map;

import com.wowza.wms.http.*;
import com.wowza.wms.logging.*;
import com.wowza.wms.vhost.*;

public class HTTPIsStreamLive extends HTTProvider2Base {

	public void onHTTPRequest(IVHost vhost, IHTTPRequest req, IHTTPResponse resp) {
		if (!doHTTPAuthentication(vhost, req, resp))
			return;
		
		String sname = "";
		String streamName = "myStream";
		String appName = "vod";
		String ret = "false";
		
		if (req.getMethod().equalsIgnoreCase("post")) {
			req.parseBodyForParams(true);
		}

		Map<String, List<String>> params = req.getParameterMap();
		if (params.containsKey("streamname"))
			sname = params.get("streamname").get(0);
		
		if (params.containsKey("appname"))
			appName = params.get("appname").get(0);
		
		List<String> list = vhost.getApplication(appName).getAppInstance("_definst_").getPublishStreamNames();
		Iterator<String> iter = list.iterator();
		while (iter.hasNext())
		{
			streamName = iter.next();
			if (sname == streamName)
					ret = "true";
		}

		try {
			OutputStream out = resp.getOutputStream();
			byte[] outBytes = ret.getBytes();
			out.write(outBytes);
		} catch (Exception e) {
			WMSLoggerFactory.getLogger(null).error(
					"HTTPIsStreamLive: " + e.toString());
		}

	}

}

Richard

[pobrejuanito]

Hi,

If I have origin/balancer and edges setup, Do I set this up on edge application.xml?