# Live HLS Transcoding Problem

**URL:** <https://community.wowza.com/t/live-hls-transcoding-problem/46765>\
**Category:** Wowza Streaming Engine\
**Created:** [March 21, 2016, 6:44pm UTC](https://community.wowza.com/t/live-hls-transcoding-problem/46765 "2016-03-21T18:44:29Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![George\_Stoyanov](https://avatars.discourse-cdn.com/v4/letter/g/d6d6ee/32.png) [@George\_Stoyanov](https://community.wowza.com/u/George_Stoyanov)\
**Post date:** [March 21, 2016, 6:44pm UTC](https://community.wowza.com/t/live-hls-transcoding-problem/46765/1 "2016-03-21T18:44:29Z")

</div>

Hello All,

My HW parameters are:

windows 7 - 64 bit, CPU: quad core Xeon X3210@2.13GHz, 4Gb of RAM, 700Gb HDD without raid, Java JRE 8.74, GPU: ATI ES1000.

I have a trial license for Wowza and I want the following configuration:

input: UDP MPEG-TS multicast coming from a Live broadcast third party encoder

output: Live HLS ABR with default profiles

publishing point: CDN server outside my network without encryption

Whatever I do, I cannot start the HLS transcoding. In Server Stream Files I have configured the input UDP multicast, I have also checked it with TS analyzer and I see the input bitrate in the monitoring view. I have connected it to the Live HLS application and have enabled the transcoder. In incoming stream the status of the UDP multicast is active but in the monitoring Overview I don’t see any in/out traffic. I have also noticed that every time when I restart the server the input traffic is ceasing.

So I guess I am missing something, the problem is that I don’t know what exactly. Any ideas?

Thanks in advance

---

<div class="post-metadata">

**Author:** ![Michelle\_B](https://sea2.discourse-cdn.com/flex002/user_avatar/community.wowza.com/michelle_b/32/394_2.png) [@Michelle\_B](https://community.wowza.com/u/Michelle_B)\
**Post date:** [March 23, 2016, 7:30pm UTC](https://community.wowza.com/t/live-hls-transcoding-problem/46765/2 "2016-03-23T19:30:22Z")

</div>

Hi,

It sounds like your incoming MPEG-TS stream may not be getting received in your Wowza server correctly. Do you see any reset connections or doWatchdog lines in your conf/wowzastreamingengine\_access.log file? While you have transcoding disabled, are you able to play back the passthru stream using a different protocol (such as RTMP)?

I would also recommend that you first test with a different encoder. You can test with [ffmpeg](https://www.wowza.com/docs/how-to-use-ffmpeg-with-wowza-media-server-mpeg-ts%28MPEG-TS%29) to send an MPEG-TS stream to your Wowza server to see if the transcoding functionality is working for you.

Michelle