# Transcoding stream pulled from IP camera using .stream file **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [July 16, 2012, 4:08pm UTC](https://community.wowza.com/t/transcoding-stream-pulled-from-ip-camera-using-stream-file/35438 "2012-07-16T16:08:12Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![Daniel\_Mahoney](https://avatars.discourse-cdn.com/v4/letter/d/a183cd/32.png) [@Daniel\_Mahoney](https://community.wowza.com/u/Daniel_Mahoney)\ **Post date:** [July 16, 2012, 4:08pm UTC](https://community.wowza.com/t/transcoding-stream-pulled-from-ip-camera-using-stream-file/35438/1 "2012-07-16T16:08:12Z")
I have read the docs on the Transcoder Add-on, but I’m confused about one thing. I’ve got a .stream file defined to allow me to pull a stream from an IP camera. This works fine. I need now to deliver the stream as received as well as a couple of smaller, lower bitrate versions. I’ve got my transcode.xml file defined and have enabled transcoder in my Application.xml. What I am not clear on is how to refer to my transcoded streams. Assuming that my stream file is named “camera1.stream”, if my transrate.xml contains: false 720p mp4:${SourceStreamName}\_720p H.264 default -1 fit-height 1280 720 main 1300000 false 60 false 0 ${com.wowza.wms.context.VHostConfigHome}/content/wowzalogo.png 100 5 5 ${ImageWidth} ${ImageHeight} left,top AAC 96000 how would I refer to this transcoder output? Would it be “camera1.stream\_720p”? Or, if my transrate.xml file also contains: ${SourceStreamName}\_all 720p 360p 240p 160p could I access the output as “ngrp:camera1.stream\_all”? As you might guess, this is my first time going live with the Transcoder. EDIT: More information… I was thinking that if my stream file is named “camera.stream” I might be able to access the 720p version by referencing “camera.stream\_720p”, but that is not the case. JWPlayer complains of no such stream. Trying to load “ngrp:camera.stream” works just fine. “ngrp:camera.stream\_all” doesn’t. Pointers, please? ---
**Author:** ![Randall\_Auriemma](https://avatars.discourse-cdn.com/v4/letter/r/85e7bf/32.png) [@Randall\_Auriemma](https://community.wowza.com/u/Randall_Auriemma)\ **Post date:** [July 17, 2012, 3:30am UTC](https://community.wowza.com/t/transcoding-stream-pulled-from-ip-camera-using-stream-file/35438/2 "2012-07-17T03:30:38Z")
If you have started camera1.stream in the Stream Manager then your guesses for the stream names are correct. See the Transcoder Tutorial Troubleshooting section for help. ---
**Author:** ![Daniel\_Mahoney](https://avatars.discourse-cdn.com/v4/letter/d/a183cd/32.png) [@Daniel\_Mahoney](https://community.wowza.com/u/Daniel_Mahoney)\ **Post date:** [July 17, 2012, 8:21am UTC](https://community.wowza.com/t/transcoding-stream-pulled-from-ip-camera-using-stream-file/35438/3 "2012-07-17T08:21:47Z")
> If you have started camera1.stream in the Stream Manager then your guesses for the stream names are correct. See the Transcoder Tutorial Troubleshooting section for help. I wonder now if my issue is a licensing problem. I’m currently using my developer license, trying to get transcoding figured out then I’ll switch over to a full license. When I request: curl http://:1935/live/camera.stream/playlist.m3u8 I get: #EXTM3U #EXT-X-VERSION:3 #EXT-X-STREAM-INF:PROGRAM-ID=1,BANDWIDTH=137425,CODECS=“avc1.66.41”,RESOLUTION=800x450 chunklist.m3u8?wowzasessionid=990550988 When I request: curl http://:1935/live/ngrp:camera.stream or curl http://:1935/live/ngrp:camera.stream\_all I get Wowza Media Server 3 Developer Edition (Expires: Jan 10, 2013) 3.1.2 build1624Wowza Media Server 3 Developer Edition (Expires: Jan 10, 2013) 3.1.2 build1624 Should I be able to do this initial setup with my developer’s license? ---
**Author:** ![Daniel\_Mahoney](https://avatars.discourse-cdn.com/v4/letter/d/a183cd/32.png) [@Daniel\_Mahoney](https://community.wowza.com/u/Daniel_Mahoney)\ **Post date:** [July 17, 2012, 9:01am UTC](https://community.wowza.com/t/transcoding-stream-pulled-from-ip-camera-using-stream-file/35438/4 "2012-07-17T09:01:43Z")
Duh! Thanks - I’m still half asleep this morning. However: dan@dan:~$ curl http://:1935/live/ngrp:camera.stream\_all/playlist.m3u8#EXTM3U #EXT-X-VERSION:3 Following the debugging info in the transcoding tutorial, looking through wowzamediaserver\_access.log I see: 2012-07-17 14:38:49 UTC comment server INFO 200 - Transcoder Streams Available: 1 - - - 2.982 - - - - - - - - - - - - - - - - - - - - - - - - - 2012-07-17 13:20:15 UTC comment server INFO 200 - TranscoderSessionNative.loadLibrary: Load transcoder list: /usr/local/WowzaMediaServer/lib-native/linux64/transcoder.list - - - 71.496 - - - - - - - - - - - - - - - - - - - - - - - - - 2012-07-17 13:20:15 UTC comment server INFO 200 - JNI:TranscoderSession.isCUDAAvailable[_defaultVHost_:live/_definst_/idju8dh638j7.stream]: NVidia CUDA hardware acceleration is NOT available on Linux - - - 71.521 - - - - - - - - - - - - - - - - - - - - - - - - - 2012-07-17 13:20:15 UTC comment server INFO 200 - JNI:TranscoderSession.isQuickSyncAvailable[_defaultVHost_:live/_definst_/idju8dh638j7.stream]: Intel Quick Sync hardware acceleration is NOT available on Linux - - - 71.522 - - - - - - - - - - - - - - but I am NOT seeing anything like : comment server INFO 200 LiveStreamTranscoder.init[live/_definst_/myStream]: Load transcoder template: C:\Program Files (x86)\Wowza Media Systems\Wowza Media Server 3.0.0/transcoder/templates/transrate.xml My Application.xml contains (excerpt): transcoder ${SourceStreamName}.xml,live.xml ${com.wowza.wms.context.VHostConfigHome}/transcoder/profiles ${com.wowza.wms.context.VHostConfigHome}/transcoder/templates and my /usr/local/WowzaMediaServer/transcoder/templates contains: [root@ip-10-10-97-239 WowzaMediaServer]# ls -al transcoder/templates/ total 52 drwxrwxr-x 2 wowza wowza 4096 Jul 17 14:37 . drwxrwxr-x 3 wowza wowza 4096 Jun 19 15:34 … -rwxrwxr-x 1 wowza wowza 874 May 29 14:44 audioonly.xml -rwxr-xr-x 1 wowza wowza 4125 Jul 17 00:31 catdudeTCode.xml -rwxr-xr-x 1 wowza wowza 4125 Jul 17 14:37 live.xml -rwxrwxr-x 1 wowza wowza 8369 Dec 23 2011 transcode.xml -rwxrwxr-x 1 wowza wowza 9078 Dec 23 2011 transrate.xml Should the transcoder be finding my “live.xml” file in the templates dir and logging it? ---
**Author:** ![Randall\_Auriemma](https://avatars.discourse-cdn.com/v4/letter/r/85e7bf/32.png) [@Randall\_Auriemma](https://community.wowza.com/u/Randall_Auriemma)\ **Post date:** [July 17, 2012, 4:49am UTC](https://community.wowza.com/t/transcoding-stream-pulled-from-ip-camera-using-stream-file/35438/5 "2012-07-17T04:49:05Z")
Try: curl http://:1935/live/ngrp:camera.stream\_all/playlist.m3u8