# Troubles with gstreamer & wowza server **URL:** \ **Category:** Wowza Streaming Engine\ **Created:** [July 6, 2011, 1:30pm UTC](https://community.wowza.com/t/troubles-with-gstreamer-wowza-server/36722 "2011-07-06T13:30:32Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Gergely\_Rakoczi](https://avatars.discourse-cdn.com/v4/letter/g/58f4c7/32.png) [@Gergely\_Rakoczi](https://community.wowza.com/u/Gergely_Rakoczi)\ **Post date:** [July 6, 2011, 1:30pm UTC](https://community.wowza.com/t/troubles-with-gstreamer-wowza-server/36722/1 "2011-07-06T13:30:32Z")
Hi, we at Vienna University try to stream a testvideo via gstreamer to our Wowza Media Server by using this command: _gst-launch-0.10 -v videotestsrc ! “video/x-raw-yuv, format=(fourcc)I420, width=(int)640, height=(int)480, framerate=(fraction)15/1” ! queue ! x264enc bitrate=500 cabac=false pass=qual quantizer=27 subme=4 threads=0 bframes=0 dct8x8=false ! queue ! rtph264pay ! queue ! udpsink host=128.130.35.149 port=10004_ The rtp packets are recieved just fine, so firewall settings are not the reason for our problem. We try to view the stream by JW Player (Longtail setup wizard: rtmp stream, file: udp://0.0.0.0:10004, streamer: rtmp://videotest.zserv.tuwien.ac.at:80/rtplive). However, the flash player remains black and doesn’t show our stream. For your information, we have this cap for our videostream: _caps = application/x-rtp, media=(string)video, clock-rate=(int)90000, encoding-name=(string)H264, sprop-parameter-sets=(string)“Z0LAFrkQFAe2AiAAAAMAIAAAAwPB4sXU\,aM4XIA\=\=”, payload=(int)96, ssrc=(guint)2438042987, clock-base=(guint)2413324687, seqnum-base=(guint)449100_ our SDP-file looks like this: _v=0_ _o=- 1208520720 2590316916 IN IP4 128.130.35.149_ _s=MY FIRST PIPELINE_ _i=N/A_ _c=IN IP4 128.130.35.149_ _t=0 0_ _m=video 10004 RTP/AVP 96_ _a=rtpmap:96 H264/90000_ _a=fmtp:96 media=video; clock-rate=90000; encoding-name=H264; profile-level-id=4d4015; sprop-parameter-sets=Z0LAFrkQFAe2AiAAAAMAIAAAAwPB4sXU,aM4XIA==; ssrc=2438042987; clock-base=2413324687; seqnum-base=449100_ Do you have any ideas where our problem might be? Is our gstreamer pipeline or sdp-file wrong (it shoul be okay according to [Using gstreamer-0.10 with Wowza](http://community.wowza.com/t/-/306)), or do we need further settings for our wowza media server? Any advice is welcome 🙂 Thank you for your help in advance, gergely PS: our log file might help you finding a solution: [https://institute.tuwien.ac.at/fileadmin/t/tsc/temp/wowza\_log.txt](https://institute.tuwien.ac.at/fileadmin/t/tsc/temp/wowza_log.txt) ---
**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:** [July 6, 2011, 4:48am UTC](https://community.wowza.com/t/troubles-with-gstreamer-wowza-server/36722/2 "2011-07-06T04:48:23Z")
This value looks wrong: profile-level-id=4d4015 Try taking it out. We can re-calculate this part from the sprop-parameter-sets. What is in the sprop-parameter-sets looks correct. 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:** [July 8, 2011, 12:35pm UTC](https://community.wowza.com/t/troubles-with-gstreamer-wowza-server/36722/3 "2011-07-08T12:35:22Z")
Are you running the latest, latest version of GStreamer. We have seen problems with older versions of their software. I would be sure you are very up to date with their software. I see the most recent version is: GStreamer Core 0.10.35, Base Plugins 0.10.35, Good Plugins 0.10.30 stable release 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:** [July 13, 2011, 1:37pm UTC](https://community.wowza.com/t/troubles-with-gstreamer-wowza-server/36722/4 "2011-07-13T13:37:26Z")
We have had problems in the past with gstreamer and Wowza. That is why we have not supplied specific instructions. We do not have very much experience with gstreamer to really help much. I did have it working 2-3 years ago but only with a very basic setup. I might work with the gstreamer team to see if they have any suggestions. Charlie ---
**Author:** ![Lisa\_Wong](https://avatars.discourse-cdn.com/v4/letter/l/34f0e0/32.png) [@Lisa\_Wong](https://community.wowza.com/u/Lisa_Wong)\ **Post date:** [July 12, 2011, 8:03am UTC](https://community.wowza.com/t/troubles-with-gstreamer-wowza-server/36722/5 "2011-07-12T08:03:30Z")
Hi gergely, I’d like to help you troubleshoot this while Charlie is out. What changed such that the stream from Windows (VLC) to Wowza started working? Is there now any different information in the logs now or any other detail you can share? -Lisa ---
**Author:** ![Gergely\_Rakoczi](https://avatars.discourse-cdn.com/v4/letter/g/58f4c7/32.png) [@Gergely\_Rakoczi](https://community.wowza.com/u/Gergely_Rakoczi)\ **Post date:** [July 6, 2011, 2:37pm UTC](https://community.wowza.com/t/troubles-with-gstreamer-wowza-server/36722/6 "2011-07-06T14:37:16Z")
hi charlie, thanks for your fast reply. we have tried taking the profile-level-id out of the sdp-file, however without any effect. the stream is still black in the jw player … Do you need maybe further logs, files etc. for testing? We could provide them to you if you need … Thanxs for your help … gergely ---
**Author:** ![Gergely\_Rakoczi](https://avatars.discourse-cdn.com/v4/letter/g/58f4c7/32.png) [@Gergely\_Rakoczi](https://community.wowza.com/u/Gergely_Rakoczi)\ **Post date:** [July 11, 2011, 8:39am UTC](https://community.wowza.com/t/troubles-with-gstreamer-wowza-server/36722/7 "2011-07-11T08:39:32Z")
Hi charlie, I’ve just checked our gstreamer version … we are on the latest versions. In the meantime we did further testing and could achive to stream a Webcam signal from Windows (VLC) to our wowza channel, however failed to stream from our Ubuntu client (also with VLC) to the same channel. Does this info give you some hint for “debugging” ? 🙂 thanx ---
**Author:** ![Gergely\_Rakoczi](https://avatars.discourse-cdn.com/v4/letter/g/58f4c7/32.png) [@Gergely\_Rakoczi](https://community.wowza.com/u/Gergely_Rakoczi)\ **Post date:** [July 13, 2011, 7:12am UTC](https://community.wowza.com/t/troubles-with-gstreamer-wowza-server/36722/8 "2011-07-13T07:12:20Z")
Thanxs for for your help … well, by trying Windows (VLC) we just wanted to test if streaming from a different plattform works or not. At Windows (VLC) we just stream a webcam to the same wowza channel to see whether it can recieve the signal. However, the combination gstreamer & wowza channel still does not work … regardless of the gstreamer udpsink setting … we tried the following: ! video/x-raw-yuv, width=1024, height=768 ! ffmpegcolorspace ! ffenc\_mpeg4 ! rtpmp4vpay ! udpsink host=128.130.35.149 port=10004 and also ! videoscale ! video/x-raw-yuv, width=1024, height=768 ! x264enc bitrate=500 ! rtph264pay ! udpsink host=128.130.35.149 port=10004 sync=true Do you have any ideas? gergely