# TS to TS transcode
**URL:** https://community.wowza.com/t/ts-to-ts-transcode/37793
**Category:** Wowza Streaming Engine
**Created:** [December 9, 2011, 3:31pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793 "2011-12-09T15:31:45Z")
**Posts on this page:** 20
**Page:** 1
### Author:  [@JEROME\_FENEAU](https://community.wowza.com/u/JEROME_FENEAU)
#### Post date: [December 9, 2011, 3:31pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/1 "2011-12-09T15:31:45Z")
Hi,
I would like to transcode or transrate MPEG-TS streams into MPEG-TS streams, the only part that will be changed will then be either codec itself (MPEG2 to H264) or bitrate. The result should then be a MPEG-TS stream. Is it possible with Wowza Transcoder and how to set it up ?
Thanks
Jerome
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [December 9, 2011, 3:01pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/2 "2011-12-09T15:01:50Z")
Jerome,
You can use this addon along with the Wowza Transcoder:
> **[Use CDNs and services to distribute live streams](https://www.wowza.com/docs/how-to-push-streams-to-cdns-and-other-services-push-publishing)**
>
> Configure Wowza Steaming Engine to push live streams to CDNs and services for distributed delivery.
The last example in the package readme.html:
> # Incoming stream myStream will be published as MPEG-TS to address:
>
> # 239.1.0.1:10000
>
> myStream={name:myStream,stream:239.1.0.1:10000,isRTPWrapped:false}
The input to Wowza Transcoder is your MPEG-TS stream, the input to Multicast Publish is Wowza transrated stream. The package publishes mpeg-ts stream unicast o
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [December 9, 2011, 3:40pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/3 "2011-12-09T15:40:25Z")
Jerome,
You can playback the output of the Wowza Transcoder in any client supported by Wowza, no need to involve this addon. The mpeg-ts stream published by Wowza with transcoder source has to be played back in VLC or Quicktime.
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [December 19, 2011, 7:46pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/4 "2011-12-19T19:46:25Z")
Jérôme,
Yes, each of those things can be done in Wowza, and in that order, assuming the source video codec and audio codec are supported for decode
> Video decoding: H.264, MPEG2, MPEG4 Part 2
>
> Audio decoding: AAC, MP3, MPEG 1 Part 1/2, Speex, G.711 (a-law and mu-law)
>
> [Set up and run Transcoder for live streaming](https://www.wowza.com/docs/how-to-set-up-and-run-wowza-transcoder-for-live-streaming)
>
> Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [December 21, 2011, 2:17pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/5 "2011-12-21T14:17:05Z")
Jérôme,
You just need MulticastPublish Addon:
[https://www.wowza.com/docs/how-to-get-multicastpublish-addon-multicast-and-unicast-streams-to-udp-and-rtsp](https://www.wowza.com/docs/how-to-get-multicastpublish-addon-multicast-and-unicast-streams-to-udp-and-rtsp)
Test playback locally with VLC.
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 10, 2012, 12:10pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/6 "2012-01-10T12:10:29Z")
Jérôme,
You have to publish a stream named “myStream”, or you can start a stream named “myStream” in StreamManager or /conf/StartUpStreams.xml if the source is MediaCaster stream like an IP camera.
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 10, 2012, 3:10pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/7 "2012-01-10T15:10:04Z")
Jérôme,
It’s best to do these things one at a time: figure out multicast with one stream, then do transcoding, then do multicast with each transcoded stream. In any case, if you want to mpegts.stream\_720p you need to match it, your file is only matching myStream not myStream\_720p. Add a line for myStream\_720p.
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 11, 2012, 7:27pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/8 "2012-01-11T19:27:48Z")
(deleted last, was wrong)
I’m not sure. What is the source? What is the contents of mpegts.stream? Does it play in VLC? What does VLC report in Tools \> Codec Info?
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 24, 2012, 2:54pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/9 "2012-01-24T14:54:03Z")
@Jérôme,
The video is mpeg2, which is not supported. mpeg2 is supported for decode in the Wowza Transcoder.
@Indur,
Wowza doesn’t mux audio and video. You will have to provide a stream that includes audio and video. Then the MulticastPublish addon can be used to send that to mpegts stream.
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 24, 2012, 2:57pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/10 "2012-01-24T14:57:12Z")
Jerome, also notice that the Wowza Transcoder is not running, it is not supported on 32bit system. You may only need to install 64bit version of Java.
[http://www.oracle.com/technetwork/java/javase/downloads/index.html](http://www.oracle.com/technetwork/java/javase/downloads/index.html)
Choose the 64bit JDK for linux.
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 24, 2012, 3:45pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/11 "2012-01-24T15:45:08Z")
Yes, as long as the audio and video codecs of the source are supported for decode in the Wowza Transcoder
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 25, 2012, 2:42pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/12 "2012-01-25T14:42:25Z")
Jérôme,
UDP ports are probably blocked in your firewall or not mapped in your router. See if you can figure that out, or try setting /conf/[app-name]/Application.xml /MediaCaster Property forceInterleaved to “true”:
```auto
forceInterleaved
true
Boolean
```
Edit: forceInterleaved has no effect with mpegts source.
What version of Wowza are you running? If you are using Wowza 3.0.4, the default has changed, so the above is not necessary.
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 25, 2012, 8:50pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/13 "2012-01-25T20:50:05Z")
Scratched the forceInterleaved suggestion, which is not relevant in your case.
It’s good to update, but my suggestion is to look at UDP ports. I only noted that forceInterleaved default has changed in 3.0.4.
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 26, 2012, 12:45am UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/14 "2012-01-26T00:45:22Z")
Wowza is not connecting to the stream. It looks like UDP ports. You got .bind then timeout lines then .unbind. Typical when UDP ports are blocked:
```auto
INFO server comment - MulticastTransport.bind[live/_definst_]: 239.1.1.8/5500
INFO stream publish mpegts.stream -
INFO server comment - RTPMediaCaster.Reconnector[79042621:live/_definst_:mpegts.stream]: done: 2
INFO server comment - RTPMediaCaster.streamTimeout[79042621:live/_definst_:mpegts.stream]: timeout:12000 diff:12005 reason:101
INFO server comment - RTPMediaCaster.resetConnection[79042621:live/_definst_:mpegts.stream]:
INFO server comment - RTPMediaCaster.closeRTPSession[79042621:live/_definst_:mpegts.stream]
INFO server comment - MulticastTransport.unbind[live/_definst_]: 239.1.1.8/5500 sent:0 recv:0
```
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 26, 2012, 6:34pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/15 "2012-01-26T18:34:39Z")
Again, it appears to be UDP ports. Setting RTPTransportMode to “forceInterleaved” won’t help. Remember I suggested that then scratched the suggestio because forceInterleaved only affects RTSP ingress not UDP. You either have to allow UDP ports in a firewall or perhaps map UDP ports to your Wowza server in a router.
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 26, 2012, 9:04pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/16 "2012-01-26T21:04:32Z")
You can use specific IP by changing /conf/VHost.xml /HostPort /IpAddress from “\*” to “[ip-address]”
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 26, 2012, 9:50pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/17 "2012-01-26T21:50:37Z")
Jérôme,
Use the HostPort with /Port “1935”, the port you are using.
Anyway, I’m not sure what that does for you in this case. If you are still seeing this in the log it’s a connectivity problem of some kind, most likely UDP ports not being allowed or mapped.
```auto
INFO server comment - MulticastTransport.bind[live/_definst_]: 239.1.1.8/5500
INFO stream publish mpegts.stream -
INFO server comment - RTPMediaCaster.Reconnector[79042621:live/_definst_:mpegts.stream]: done: 2
INFO server comment - RTPMediaCaster.streamTimeout[79042621:live/_definst_:mpegts.stream]: timeout:12000 diff:12005 reason:101
INFO server comment - RTPMediaCaster.resetConnection[79042621:live/_definst_:mpegts.stream]:
INFO server comment - RTPMediaCaster.closeRTPSession[79042621:live/_definst_:mpegts.stream]
INFO server comment - MulticastTransport.unbind[live/_definst_]: 239.1.1.8/5500 sent:0 recv:0
```
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 26, 2012, 10:01pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/18 "2012-01-26T22:01:24Z")
Try it all locally.
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [January 26, 2012, 10:20pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/19 "2012-01-26T22:20:45Z")
There are two place to change MulticastInterfaceAddress in VHost.xml. Did you change both?
Richard
---
### Author:  [@Richard\_Lanham](https://community.wowza.com/u/Richard_Lanham)
#### Post date: [February 15, 2012, 6:57pm UTC](https://community.wowza.com/t/ts-to-ts-transcode/37793/20 "2012-02-15T18:57:03Z")
Jérôme,
This might be helpful regarding the first WARN line:
[https://www.wowza.com/docs/how-to-control-transcoded-video-with-video-encoding-parameters](https://www.wowza.com/docs/how-to-control-transcoded-video-with-video-encoding-parameters)
In the 2nd, it seems that one of the streams in the stream name group has a missing audio codec id. “TranscoderStreamNameGroups#DelayStart.run” indicates that creation of the group is delayed, I guess waiting for the audio codec id.
Outbound multicast video binding to two ports is normal, expected. Notice in the examples the audio port is set 2 ahead of the video port for this reason.
Richard
[Next page](https://community.wowza.com/t/ts-to-ts-transcode/37793.md?page=2)