# Wowza Streaming Engine **URL:** https://community.wowza.com/c/wowza-streaming-engine/8.md?page=213 [Latest](https://community.wowza.com/latest.md) · [Categories](https://community.wowza.com/categories.md) · [Tags](https://community.wowza.com/tags.md) **Page:** 214 --- ## [Null Pointer Exception on enabling of an Encode](https://community.wowza.com/t/null-pointer-exception-on-enabling-of-an-encode/44194)
**Author:** [@Robert\_Taylor](https://community.wowza.com/u/Robert_Taylor)\ **Replies:** 2\ **Last updated:** [October 31, 2014, 6:24pm UTC](https://community.wowza.com/t/null-pointer-exception-on-enabling-of-an-encode/44194 "2014-10-31T18:24:21Z")
Simply clicking “enable encode”… Stack Trace java.lang.NullPointerException at java.util.ArrayList.addAll(ArrayList.java:472) at com.wowza.wms.webapp.transcoder.TranscoderEncodeModel.setUIData(TranscoderEncodeModel.java… --- ## [Windows Phone (no) streaming](https://community.wowza.com/t/windows-phone-no-streaming/43902)
**Author:** [@Bruno\_Michalet](https://community.wowza.com/u/Bruno_Michalet)\ **Replies:** 6\ **Last updated:** [October 31, 2014, 5:01pm UTC](https://community.wowza.com/t/windows-phone-no-streaming/43902 "2014-10-31T17:01:16Z")
Hello, My streams are working properly on smartphones (IOS and Android) with the HLS protocole. But my client wants it to be also effective on Windows Phones (IEMobile). So I’ve parametered the Microsoft Smooth Streami… --- ## [Having trouble getting Edge to work.](https://community.wowza.com/t/having-trouble-getting-edge-to-work/40784)
**Author:** [@John\_Anderson](https://community.wowza.com/u/John_Anderson)\ **Replies:** 4\ **Last updated:** [October 31, 2014, 11:22am UTC](https://community.wowza.com/t/having-trouble-getting-edge-to-work/40784 "2014-10-31T11:22:05Z")
I set up an origin server with an Application called “live”. I can access the stream with… rtsp://:1935/live/camera.stream I also set up an edge server with Application “le” (Live Edge) on another computer. I have the … --- ## [native android player (MediaPlayer) vs VLC](https://community.wowza.com/t/native-android-player-mediaplayer-vs-vlc/42428)
**Author:** [@Martin\_Peruchena](https://community.wowza.com/u/Martin_Peruchena)\ **Replies:** 7\ **Last updated:** [October 31, 2014, 11:14am UTC](https://community.wowza.com/t/native-android-player-mediaplayer-vs-vlc/42428 "2014-10-31T11:14:50Z")
Hi everyone, I’m building an android app that took RTSP Wowza streaming and it’s working but I can’t listen anything. In the same device , with VLC I can see and listen ok. It seems like native android player doesn’t wo… --- ## [How to run Wowza service to start / stop from non-root account?](https://community.wowza.com/t/how-to-run-wowza-service-to-start-stop-from-non-root-account/42034)
**Author:** [@Dave\_Shim](https://community.wowza.com/u/Dave_Shim)\ **Replies:** 3\ **Last updated:** [October 31, 2014, 10:03am UTC](https://community.wowza.com/t/how-to-run-wowza-service-to-start-stop-from-non-root-account/42034 "2014-10-31T10:03:31Z")
Hi. I want to Wowza service to start / stop from non-root account to a security problem. The OS is Ubuntu 12.04 version. How to run Wowza Streaming Engine as a Named User (Linux and OS X) I’ve also found this part, i… --- ## [Wowza Local Server, S3 Storage and CloudFront](https://community.wowza.com/t/wowza-local-server-s3-storage-and-cloudfront/43657)
**Author:** [@Puneet\_Jain](https://community.wowza.com/u/Puneet_Jain)\ **Replies:** 2\ **Last updated:** [October 30, 2014, 1:45pm UTC](https://community.wowza.com/t/wowza-local-server-s3-storage-and-cloudfront/43657 "2014-10-30T13:45:16Z")
We need to setup a local Wowza media server and use Amazon s3 buckets for storage purpose. After that we need to enable CDN delivery of videos via CloudFront. Is it possible to do such setup where the wowza server will … --- ## [Dreambox to Wowza](https://community.wowza.com/t/dreambox-to-wowza/44186)
**Author:** [@Cezary\_Malecki](https://community.wowza.com/u/Cezary_Malecki)\ **Replies:** 3\ **Last updated:** [October 30, 2014, 11:22am UTC](https://community.wowza.com/t/dreambox-to-wowza/44186 "2014-10-30T11:22:57Z")
Hi This is my first post so please understand. I have Dreambox DM800HD at home and I would like to re-stream some channels via Wowza server installed on my Windows 7 machine. DM800 source : http://192.168.3.53:8001/1:0… --- ## [Using LiveVideoStreaming/FlashRTMPPlayer with password authentication required?](https://community.wowza.com/t/using-livevideostreaming-flashrtmpplayer-with-password-authentication-required/44189)
**Author:** [@Aram\_Agajanian](https://community.wowza.com/u/Aram_Agajanian)\ **Replies:** 4\ **Last updated:** [October 30, 2014, 11:10am UTC](https://community.wowza.com/t/using-livevideostreaming-flashrtmpplayer-with-password-authentication-required/44189 "2014-10-30T11:10:06Z")
Is it possible to use the FlashRTMPPlayer software in the LiveVideoStreaming example with a Live application that has password authentication required? There doesn’t seem to be anywhere to enter the username and password… --- ## [Are you storing the videos in wowza streaming engine during live streaming?](https://community.wowza.com/t/are-you-storing-the-videos-in-wowza-streaming-engine-during-live-streaming/43535)
**Author:** [@Bhagya\_lakshmi](https://community.wowza.com/u/Bhagya_lakshmi)\ **Replies:** 3\ **Last updated:** [October 29, 2014, 9:28pm UTC](https://community.wowza.com/t/are-you-storing-the-videos-in-wowza-streaming-engine-during-live-streaming/43535 "2014-10-29T21:28:33Z")
Hi, Are you storing the videos locally in wowza streaming engine during live streaming?(i.e what ever live video is streaming, are you storing anywhere temporarily in wowza?). If it stores, please let me know where it w… --- ## [Issues with recorded videos](https://community.wowza.com/t/issues-with-recorded-videos/44169)
**Author:** [@Varun\_aggarwal](https://community.wowza.com/u/Varun_aggarwal)\ **Replies:** 2\ **Last updated:** [October 29, 2014, 8:53am UTC](https://community.wowza.com/t/issues-with-recorded-videos/44169 "2014-10-29T08:53:17Z")
I am handling an application that records live videos from the browser to Wowza. Everything works fine except sometimes the videos recorded are of 119bytes only, i.e there is nothing. Out of 100 videos we record per day,… --- ## [Origin/Edges : all mounted on the same S3 bucket with s3fs. What could happen?](https://community.wowza.com/t/origin-edges-all-mounted-on-the-same-s3-bucket-with-s3fs-what-could-happen/44168)
**Author:** [@Alexandre\_Veremme](https://community.wowza.com/u/Alexandre_Veremme)\ **Replies:** 1\ **Last updated:** [October 28, 2014, 10:42pm UTC](https://community.wowza.com/t/origin-edges-all-mounted-on-the-same-s3-bucket-with-s3fs-what-could-happen/44168 "2014-10-28T22:42:53Z")
Hello all ! I use Wowza since couple of weeks. Everything is on Amazon (one origin server and many egde servers behind a load balancer). I use the version 4.1. I tried last week to mount a S3 bucket thanks to s3fs. I s… --- ## [What type of server should you use when installing a Wowza instance?](https://community.wowza.com/t/what-type-of-server-should-you-use-when-installing-a-wowza-instance/33529)
**Author:** [@Lars-Goran\_Borjesson](https://community.wowza.com/u/Lars-Goran_Borjesson)\ **Replies:** 1\ **Last updated:** [October 28, 2014, 10:35pm UTC](https://community.wowza.com/t/what-type-of-server-should-you-use-when-installing-a-wowza-instance/33529 "2014-10-28T22:35:55Z")
Just need quickly to know…is it the C3 types of instances you should use when installing a Wowza? --- ## [VOD mount storage not working](https://community.wowza.com/t/vod-mount-storage-not-working/42148)
**Author:** [@tariq\_inam](https://community.wowza.com/u/tariq_inam)\ **Replies:** 1\ **Last updated:** [October 28, 2014, 9:34pm UTC](https://community.wowza.com/t/vod-mount-storage-not-working/42148 "2014-10-28T21:34:07Z")
hi, I am trying to use a mounted drive to use as VOD storage location. I m using Z:\\content. But it doesnt work. I get error “location not available” I can open the folder and access it from window. It doesnt require a… --- ## [Change protocol from rtmp to http.](https://community.wowza.com/t/change-protocol-from-rtmp-to-http/44161)
**Author:** [@keunwoo\_park](https://community.wowza.com/u/keunwoo_park)\ **Replies:** 2\ **Last updated:** [October 28, 2014, 4:00pm UTC](https://community.wowza.com/t/change-protocol-from-rtmp-to-http/44161 "2014-10-28T16:00:12Z")
Our customer has used Wowza server with JWPlayer for mp3 service. But they want to change protocl http with html5 audio player tag in IE browser. Original url -\> rtmp://xx.xxx.xxx.xxx:1935/vod/definst/mp3:mu\_mp3/00/06/… --- ## [Playback erors](https://community.wowza.com/t/playback-erors/37641)
**Author:** [@Jorj\_Colesnicov](https://community.wowza.com/u/Jorj_Colesnicov)\ **Replies:** 4\ **Last updated:** [October 28, 2014, 12:17pm UTC](https://community.wowza.com/t/playback-erors/37641 "2014-10-28T12:17:51Z")
Hello, at the moment I have problems playing back my stream. Attached I send you the log of vlc: ts warning: discontinuity received 0x2 instead of 0xf (pid=256) httplive warning: playback in danger of stalling ts warn… --- ## [Seeing many "killUnidentifiedSessions" -- are viewers really being booted and why?](https://community.wowza.com/t/seeing-many-killunidentifiedsessions-are-viewers-really-being-booted-and-why/41756)
**Author:** [@Boyd\_Badten](https://community.wowza.com/u/Boyd_Badten)\ **Replies:** 5\ **Last updated:** [October 28, 2014, 11:26am UTC](https://community.wowza.com/t/seeing-many-killunidentifiedsessions-are-viewers-really-being-booted-and-why/41756 "2014-10-28T11:26:07Z")
I’m getting tons of “killUnidentifiedSessions” messages on a new wowza server (v3.6.3) I just set up. What I’d like to know is if the server is really kicking these people off??? Please answer this question. I’m not get… --- ## [HTTPTranscoderThumbnail suddenly stopped working](https://community.wowza.com/t/httptranscoderthumbnail-suddenly-stopped-working/291)
**Author:** [@system](https://community.wowza.com/u/system)\ **Replies:** 9\ **Last updated:** [October 28, 2014, 8:47am UTC](https://community.wowza.com/t/httptranscoderthumbnail-suddenly-stopped-working/291 "2014-10-28T08:47:39Z")
I was trying to implement thumbnail preview for our live streams, and stumbled upon the new feature of using HTTPTranscoderThumbnail with Transcoder AddOn to grab thumbnails. I followed instructions on this URL: https:… --- ## [Request timeout question](https://community.wowza.com/t/request-timeout-question/41733)
**Author:** [@Filipe\_Brunido](https://community.wowza.com/u/Filipe_Brunido)\ **Replies:** 1\ **Last updated:** [October 28, 2014, 8:40am UTC](https://community.wowza.com/t/request-timeout-question/41733 "2014-10-28T08:40:13Z")
Hi everyone, I’m currently working on an application that takes a Live RTSP stream and publishes it as a LiveSmoothStreaming endpoint. Everything works fine until the source terminates the stream and causes all connect… --- ## [Where can you by the license for Transcoding AddOn](https://community.wowza.com/t/where-can-you-by-the-license-for-transcoding-addon/33526)
**Author:** [@Lars-Goran\_Borjesson](https://community.wowza.com/u/Lars-Goran_Borjesson)\ **Replies:** 3\ **Last updated:** [October 28, 2014, 6:53am UTC](https://community.wowza.com/t/where-can-you-by-the-license-for-transcoding-addon/33526 "2014-10-28T06:53:53Z")
Hi We have installed the Wowza latest version on EC2 with a license, everything is working okay. But where can we by the license for transcoding? A lot of into regarding transcoding…but no purchase link/button to be f… --- ## [RTMP starttime/duration JW Player](https://community.wowza.com/t/rtmp-starttime-duration-jw-player/36942)
**Author:** [@Andrew\_Claasen](https://community.wowza.com/u/Andrew_Claasen)\ **Replies:** 4\ **Last updated:** [October 28, 2014, 3:16am UTC](https://community.wowza.com/t/rtmp-starttime-duration-jw-player/36942 "2014-10-28T03:16:16Z")
Hi, I’m looking for a way to set starttime and possibly duration if I can with rtmp via jwplayer. Previously we were using a custom flash player and just used netsteam.connect(""); netsream.play("","") ; and that worked … --- ## [Do we need LicenseUpdateServer?](https://community.wowza.com/t/do-we-need-licenseupdateserver/44148)
**Author:** [@Shigeaki\_Wakizaka](https://community.wowza.com/u/Shigeaki_Wakizaka)\ **Replies:** 4\ **Last updated:** [October 27, 2014, 8:38pm UTC](https://community.wowza.com/t/do-we-need-licenseupdateserver/44148 "2014-10-27T20:38:39Z")
Hi, I’m newbie and this question sounds stupid… Do we need to launch a LicenseUpdateServer even if I have unlimited license contract? What does LicenseUpdateServer usually do? and for what? I’m assuming we don’t always… --- ## [Can MediaCache be configured to not remove query parameters?](https://community.wowza.com/t/can-mediacache-be-configured-to-not-remove-query-parameters/40689)
**Author:** [@Richard\_Elam](https://community.wowza.com/u/Richard_Elam)\ **Replies:** 3\ **Last updated:** [October 27, 2014, 6:30pm UTC](https://community.wowza.com/t/can-mediacache-be-configured-to-not-remove-query-parameters/40689 "2014-10-27T18:30:00Z")
I am attempting to use Wowza to stream content from an OpenStack/Swift data store. MediaCache seems like the appropriate technology, but I have a problem. SWIFT temporary urls have additional HMCA information on them th… --- ## [Wowza LoadBalancer with Auto Scaling / CloudFormation on AWS EC2](https://community.wowza.com/t/wowza-loadbalancer-with-auto-scaling-cloudformation-on-aws-ec2/43888)
**Author:** [@Derek\_Eichele](https://community.wowza.com/u/Derek_Eichele)\ **Replies:** 1\ **Last updated:** [October 27, 2014, 5:59am UTC](https://community.wowza.com/t/wowza-loadbalancer-with-auto-scaling-cloudformation-on-aws-ec2/43888 "2014-10-27T05:59:19Z")
If I understand the LoadBalancer correctly, it can manage when new servers are registered or removed. I’d like to know how I can tie this in with Auto Scaling and/or CloudFormation to auto-create those new servers? Are t… --- ## [Memory usage - Live and VOD](https://community.wowza.com/t/memory-usage-live-and-vod/44156)
**Author:** [@Miguel\_Granados\_Fern](https://community.wowza.com/u/Miguel_Granados_Fern)\ **Replies:** 1\ **Last updated:** [October 27, 2014, 5:36am UTC](https://community.wowza.com/t/memory-usage-live-and-vod/44156 "2014-10-27T05:36:27Z")
Hi, looking at the documentation here: https://www.wowza.com/docs/how-to-configure-apple-hls-packetization-cupertinostreaming I’ve founded that: "For example, a 500 kbps stream will consume the following amount of mem… --- ## [mp4 vod lip sync issue on iOS after 2 hours of playing.](https://community.wowza.com/t/mp4-vod-lip-sync-issue-on-ios-after-2-hours-of-playing/41551)
**Author:** [@richard\_chen](https://community.wowza.com/u/richard_chen)\ **Replies:** 7\ **Last updated:** [October 26, 2014, 11:08pm UTC](https://community.wowza.com/t/mp4-vod-lip-sync-issue-on-ios-after-2-hours-of-playing/41551 "2014-10-26T23:08:11Z")
Hi experts, I encounter an issue with Wowza when doing mp4 vod. I have a 4 hours mp4 movies, I put it on Wowza and play it with iPad(do vod), at the beginning, everything is ok, but 2 hours later, I encounter the lip sy… --- ## [Teradek Cube - What's your experience?](https://community.wowza.com/t/teradek-cube-whats-your-experience/43856)
**Author:** [@Joseph\_Nova](https://community.wowza.com/u/Joseph_Nova)\ **Replies:** 3\ **Last updated:** [October 26, 2014, 11:40am UTC](https://community.wowza.com/t/teradek-cube-whats-your-experience/43856 "2014-10-26T11:40:03Z")
I ask because I’ve had my 155/355 Cubelet for almost 30 days now and I’m not happy. :mad: The operational range in Infrastructure Mode has been dismal. I can barely get more than 50 ft away from my AP or router (I tried… --- ## [Network Throughput Measurement](https://community.wowza.com/t/network-throughput-measurement/43076)
**Author:** [@Guilherme\_Nozawa](https://community.wowza.com/u/Guilherme_Nozawa)\ **Replies:** 2\ **Last updated:** [October 24, 2014, 4:35pm UTC](https://community.wowza.com/t/network-throughput-measurement/43076 "2014-10-24T16:35:00Z")
Hey Everyone, I would like to know if there a way to measure the bytes out of each camera individually; if is there any record about that information. For example, if I have two cameras streaming how to know which uses … --- ## [Video Quality](https://community.wowza.com/t/video-quality/41783)
**Author:** [@Jinqiang\_Chen](https://community.wowza.com/u/Jinqiang_Chen)\ **Replies:** 4\ **Last updated:** [October 24, 2014, 3:10pm UTC](https://community.wowza.com/t/video-quality/41783 "2014-10-24T15:10:09Z")
The streamed video quality from Wowza Streaming Engine is much worse than that of original video. The client is using a Flash player built with OSMF. Are there any settings on the server that can be changed to achieve … --- ## [how to configure logger](https://community.wowza.com/t/how-to-configure-logger/44149)
**Author:** [@Shigeaki\_Wakizaka](https://community.wowza.com/u/Shigeaki_Wakizaka)\ **Replies:** 3\ **Last updated:** [October 24, 2014, 2:38pm UTC](https://community.wowza.com/t/how-to-configure-logger/44149 "2014-10-24T14:38:49Z")
Hi, I just want to use Logback as logger in my application, but wowza seems to use log4j as a default.(because it first finds a conf/log4j.properties?) Thing is… Could you tell me how I can configure the wowza log han… --- ## [How to get server to client transferred bytes?](https://community.wowza.com/t/how-to-get-server-to-client-transferred-bytes/43817)
**Author:** [@Mauricio\_Antunes](https://community.wowza.com/u/Mauricio_Antunes)\ **Replies:** 3\ **Last updated:** [October 24, 2014, 11:41am UTC](https://community.wowza.com/t/how-to-get-server-to-client-transferred-bytes/43817 "2014-10-24T11:41:07Z")
I am currently using IHTTPStreamerSession.getIOPerformanceCounter().getMessagesOutBytes() for HTTP streaming. But I am not sure if this is ok. [Previous page](https://community.wowza.com/c/wowza-streaming-engine/8.md?page=212) [Next page](https://community.wowza.com/c/wowza-streaming-engine/8.md?page=214)