# Getting live stream from Envivio 4caster? **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [March 3, 2009, 6:56am UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567 "2009-03-03T06:56:31Z")\ **Posts on this page:** 13\ **Page:** 1
**Author:** ![system](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/system/32/447_2.png) [@system](https://community.wowza.com/u/system)\ **Post date:** [March 3, 2009, 6:56am UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/1 "2009-03-03T06:56:31Z")
Has this been tested at all? Is it possible to get h264 stream in RTP and let wowza stream to say JW Player? ---
**Author:** ![Charlie\_Good](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/charlie_good/32/383_2.png) [@Charlie\_Good](https://community.wowza.com/u/Charlie_Good)\ **Post date:** [March 3, 2009, 9:00am UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/2 "2009-03-03T09:00:21Z")
I have not tried it myself but I do believe the Envivio folks have and it works. First, install the most recent patch from here: [https://www.wowza.com/devbuild.html](https://www.wowza.com/devbuild.html) The instructions are probably close to this: [http://community.wowza.com/t/-/46](http://community.wowza.com/t/-/46) Charlie ---
**Author:** ![Charlie\_Good](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/charlie_good/32/383_2.png) [@Charlie\_Good](https://community.wowza.com/u/Charlie_Good)\ **Post date:** [March 5, 2009, 3:06pm UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/3 "2009-03-05T15:06:23Z")
It should work. Check the Wowza Pro logs to see if you see the stream name being translated correctly. If not double check the installation of the stream name alias package. Charlie ---
**Author:** ![Charlie\_Good](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/charlie_good/32/383_2.png) [@Charlie\_Good](https://community.wowza.com/u/Charlie_Good)\ **Post date:** [March 6, 2009, 3:26pm UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/4 "2009-03-06T15:26:24Z")
We can only handle H.264/AAC over MPEG-TS to the Flash player. So if you changed the audio PID to a codec other than AAC then it will be ignored by Wowza Pro. Not sure why the audio was causing a problem. Do install the latest patch to see if you get better results: [https://www.wowza.com/devbuild.html](https://www.wowza.com/devbuild.html) Charlie ---
**Author:** ![Charlie\_Good](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/charlie_good/32/383_2.png) [@Charlie\_Good](https://community.wowza.com/u/Charlie_Good)\ **Post date:** [March 6, 2009, 4:18pm UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/5 "2009-03-06T16:18:49Z")
My understanding is HE and LC are supported. Charlie ---
**Author:** ![Charlie\_Good](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/charlie_good/32/383_2.png) [@Charlie\_Good](https://community.wowza.com/u/Charlie_Good)\ **Post date:** [March 13, 2009, 4:42am UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/6 "2009-03-13T04:42:52Z")
With [Wowza Pro 1.7.0 patch1](https://www.wowza.com/downloads/WowzaMediaServer-1-7-0/WowzaMediaServerPro1.7.0-patch1.zip) (which will be release soon) you need to set the RTP property **audioIsAligned** to **false** in **[install-dir]/conf/[application]/Application.xml**. The section of Application.xml should look like this: ```auto digest senderreport 12000 audioIsAligned false Boolean ``` Charlie ---
**Author:** ![Naci\_Ishakbeyoglu](https://avatars.discourse-cdn.com/v4/letter/n/7ba0ec/32.png) [@Naci\_Ishakbeyoglu](https://community.wowza.com/u/Naci_Ishakbeyoglu)\ **Post date:** [March 5, 2009, 8:19am UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/7 "2009-03-05T08:19:24Z")
Thanks, this worked ok with Wowza’s flash player. However, I ust JW Player. For the mpeg\_ts live stream, I need to enter udp://ip:port, but JW Player does not like it. I tried the alias thing. Created an alias channel1=udp://ip:port then do I say so.addParam(‘flashvars’, ‘streamer=rtmp://192.168.24.100/rtplive&file=channel1’); this does not work? ---
**Author:** ![Naci\_Ishakbeyoglu](https://avatars.discourse-cdn.com/v4/letter/n/7ba0ec/32.png) [@Naci\_Ishakbeyoglu](https://community.wowza.com/u/Naci_Ishakbeyoglu)\ **Post date:** [March 6, 2009, 3:45am UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/8 "2009-03-06T03:45:09Z")
Well, we made this work by using an sdp file for the live mpeg\_ts stream. However, even on the wowsa’s web embedded player, it shows the video for 5-10 seconds and the video freezes. No audio either. The sdp file is as follows: v=0 o=- 1989465396 1989465396 IN IP4 192.168.24.100 s=WowzaMediaServerPro MPEG-TS t=0 0 a=range:npt=now- c=IN IP4 192.168.24.100 m=mpegts-transport 2000 RTP/AVP 96 a=rtpmap:96 MP2T/90000 a=control:mpegts Any idea if this is correct? Anyway to get sdp info from a live mpeg\_ts stream? Could this be an issue with flash player settings (buffer etc). When we watch the network, we see that the stream flows ok even though video freezes. thx ---
**Author:** ![Naci\_Ishakbeyoglu](https://avatars.discourse-cdn.com/v4/letter/n/7ba0ec/32.png) [@Naci\_Ishakbeyoglu](https://community.wowza.com/u/Naci_Ishakbeyoglu)\ **Post date:** [March 6, 2009, 5:51am UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/9 "2009-03-06T05:51:28Z")
Hi Charlie, Hopefully we are close. I believe it is the audio codec problem. The stream was coming with AAC, and that was causing the video to freeze as well. We set the envivio 4caster to stream out different codecs, then video is smooth but still no audio. We tried mpeg1 layer 2, passthru. When a connection is established, wowza server prints the videoPID but not the audio. Could that be the problem? I.e, wowza probably can’t extract the audio stream from mpeg\_ts stream. HEre is the connection info: INFO stream publish stv.sdp - INFO server comment - UDPTransport.bind: /192.168.24.100:2020 INFO server comment - RTPMediaCaster.Reconnector: stop INFO server comment - RTPDePacketizerMPEGTS.handleRTPPacket: MPEG-TS over RTP INFO server comment - UDPTransport.firstPacket: /192.168.24.100:2020 INFO server comment - RTPDePacketizerMPEGTS.handleRTPPacket: videoPID: 0x320 INFO stream play stv.sdp - There is actually an audio stream with PID 0x330. I tried file=stv.sdp&audioPID=320 with no result. ---
**Author:** ![Naci\_Ishakbeyoglu](https://avatars.discourse-cdn.com/v4/letter/n/7ba0ec/32.png) [@Naci\_Ishakbeyoglu](https://community.wowza.com/u/Naci_Ishakbeyoglu)\ **Post date:** [March 6, 2009, 3:51pm UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/10 "2009-03-06T15:51:06Z")
Do you know what profile of AAC it can handle? Main, LC? thx ---
**Author:** ![Naci\_Ishakbeyoglu](https://avatars.discourse-cdn.com/v4/letter/n/7ba0ec/32.png) [@Naci\_Ishakbeyoglu](https://community.wowza.com/u/Naci_Ishakbeyoglu)\ **Post date:** [March 7, 2009, 8:29am UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/11 "2009-03-07T08:29:15Z")
Hi Charlie, I am sending you the logs. The setup is: we get mpeg\_ts stream from envivio 4caster c4. H264/HE-AAC v2 RTP. sdp file that we used for that is also included (atv.sdp). In the logs, we see that it finds the audio stream, however, there is no sound. We use your flash player. We used 1.6.0 with the latest patch. thx nsical ---
**Author:** ![Naci\_Ishakbeyoglu](https://avatars.discourse-cdn.com/v4/letter/n/7ba0ec/32.png) [@Naci\_Ishakbeyoglu](https://community.wowza.com/u/Naci_Ishakbeyoglu)\ **Post date:** [March 13, 2009, 4:28am UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/12 "2009-03-13T04:28:49Z")
With patch 1 of wowza server pro 1.7.0, it works now. ---
**Author:** ![Jean-Christophe\_Pine](https://avatars.discourse-cdn.com/v4/letter/j/8c91f0/32.png) [@Jean-Christophe\_Pine](https://community.wowza.com/u/Jean-Christophe_Pine)\ **Post date:** [March 10, 2009, 10:02am UTC](https://community.wowza.com/t/getting-live-stream-from-envivio-4caster/567/13 "2009-03-10T10:02:04Z")
Hi, I’m Jean-Christophe Pineault, Customer Support Engineer at Envivio. We successfully tested our C4 with Wowza. I might be able to help you making your system works. Please provide your encoder version, config file, sdp file, Wowza server OS and firewall configuration at support@envivio.com Best regards, Envivio Support