# Wowza Streaming Engine **URL:** https://community.wowza.com/c/wowza-streaming-engine/8.md?page=69 [Latest](https://community.wowza.com/latest.md) · [Categories](https://community.wowza.com/categories.md) · [Tags](https://community.wowza.com/tags.md) **Page:** 70 --- ## [Is there any "few-to-many WebRTC broadcast" example available?](https://community.wowza.com/t/is-there-any-few-to-many-webrtc-broadcast-example-available/53615)
**Author:** [@Danish\_Nadaf](https://community.wowza.com/u/Danish_Nadaf)\ **Replies:** 2\ **Last updated:** [July 9, 2019, 6:01am UTC](https://community.wowza.com/t/is-there-any-few-to-many-webrtc-broadcast-example-available/53615 "2019-07-09T06:01:12Z")
I have been reading about WebRTC video feature of wowza and its use cases for around couple of weeks now. I also did successful setup using wowza streaming engine (for WebRTC) with this link - https://www.wowza.com/docs/… --- ## [specify schemeIdUri on mpd file for auto switching](https://community.wowza.com/t/specify-schemeiduri-on-mpd-file-for-auto-switching/53625)
**Author:** [@Oscar\_WONG](https://community.wowza.com/u/Oscar_WONG)\ **Replies:** 2\ **Last updated:** [July 9, 2019, 12:30am UTC](https://community.wowza.com/t/specify-schemeiduri-on-mpd-file-for-auto-switching/53625 "2019-07-09T00:30:50Z")
Since the AdaptationSet are separated on mpd file, the player cannot switch them if they are not in the same group. Instead, how could I specify the “urn:mpeg adaptation-set-switching:2016” property on mpd file to speci… --- ## [hello, my license key is expired, why?](https://community.wowza.com/t/hello-my-license-key-is-expired-why/53617)
**Author:** [@jin\_hjun](https://community.wowza.com/u/jin_hjun)\ **Replies:** 1\ **Last updated:** [July 8, 2019, 11:22pm UTC](https://community.wowza.com/t/hello-my-license-key-is-expired-why/53617 "2019-07-08T23:22:31Z")
my stream license key is expired. it because of i didn’t put in my payment account. now i did it, but i still can’t use my license key… can you try check about it? --- ## [How to create a new Stream File if my source is ffmpeg from rpi 3](https://community.wowza.com/t/how-to-create-a-new-stream-file-if-my-source-is-ffmpeg-from-rpi-3/53605)
**Author:** [@Ken\_Hughes](https://community.wowza.com/u/Ken_Hughes)\ **Replies:** 1\ **Last updated:** [July 5, 2019, 7:02am UTC](https://community.wowza.com/t/how-to-create-a-new-stream-file-if-my-source-is-ffmpeg-from-rpi-3/53605 "2019-07-05T07:02:12Z")
I created a steam using ffmpeg command from rpi. My raspberry pi is getting the stream from the camera, inputting certain text in the frames and then sending the stream to Wowza Steaming Engine. Now, when I try to add st… --- ## [Change Java version from manually installed to Wowza installed](https://community.wowza.com/t/change-java-version-from-manually-installed-to-wowza-installed/53600)
**Author:** [@Michael\_Thorpe](https://community.wowza.com/u/Michael_Thorpe)\ **Replies:** 2\ **Last updated:** [July 1, 2019, 7:22pm UTC](https://community.wowza.com/t/change-java-version-from-manually-installed-to-wowza-installed/53600 "2019-07-01T19:22:22Z")
We have several perpetual license Wowza Streaming Engine servers on Windows 2012 and 2016 that have been upgraded from 4.0.6 up to 4.7.6 that are still using the manually installed version of Java. What is the best way t… --- ## [java.io.IOException: MediaCacheRandomAccessReader.open: Item not in cache:](https://community.wowza.com/t/java-io-ioexception-mediacacherandomaccessreader-open-item-not-in-cache/53593)
**Author:** [@hada\_park](https://community.wowza.com/u/hada_park)\ **Replies:** 3\ **Last updated:** [July 1, 2019, 4:27pm UTC](https://community.wowza.com/t/java-io-ioexception-mediacacherandomaccessreader-open-item-not-in-cache/53593 "2019-07-01T16:27:02Z")
hi help me please i want to play vod in AWS s3 bucket. i read pdf document in MediaCache\_2.0.zip i create MediaCache source name is amazon3 and also create vod edge name is aws MediaCache play url is working http:/… --- ## [1935 OFF - Urgent please](https://community.wowza.com/t/1935-off-urgent-please/53594)
**Author:** [@LogicaHost\_Solucoes](https://community.wowza.com/u/LogicaHost_Solucoes)\ **Replies:** 1\ **Last updated:** [June 30, 2019, 8:07am UTC](https://community.wowza.com/t/1935-off-urgent-please/53594 "2019-06-30T08:07:07Z")
Hello I have a problem with ports 1935 does not work error: ERR\_CONNECTION\_REFUSED I have access to 8088 normally --- ## [Iphone Webrtc wrong video orientation](https://community.wowza.com/t/iphone-webrtc-wrong-video-orientation/53097)
**Author:** [@Glaucio\_Rocha1](https://community.wowza.com/u/Glaucio_Rocha1)\ **Replies:** 5\ **Last updated:** [June 28, 2019, 8:04pm UTC](https://community.wowza.com/t/iphone-webrtc-wrong-video-orientation/53097 "2019-06-28T20:04:57Z")
Greetings, Im using Iphone to make a Webrtc video chat. But when I play the video: Left is local video | Right is the video from Wowza The video is playing with wrong orientarion, my settings: setings.gif Can anyon… --- ## [PushPublishHTTPCupertinoGoogleHandler](https://community.wowza.com/t/pushpublishhttpcupertinogooglehandler/46919)
**Author:** [@Christian\_Maan](https://community.wowza.com/u/Christian_Maan)\ **Replies:** 3\ **Last updated:** [June 28, 2019, 7:28pm UTC](https://community.wowza.com/t/pushpublishhttpcupertinogooglehandler/46919 "2019-06-28T19:28:49Z")
I’m currently trying to publish HLS streams to the google cloud storage and found the class PushPublishHTTPCupertinoGoogleHandler on the classpath of a Wowza plugin project, using the Wowza IDE. As far as i understand,… --- ## [WebRTC through Wowza on iOS makes the video freeze](https://community.wowza.com/t/webrtc-through-wowza-on-ios-makes-the-video-freeze/51115)
**Author:** [@Jim\_Grimshaw](https://community.wowza.com/u/Jim_Grimshaw)\ **Replies:** 3\ **Last updated:** [June 28, 2019, 4:43pm UTC](https://community.wowza.com/t/webrtc-through-wowza-on-ios-makes-the-video-freeze/51115 "2019-06-28T16:43:30Z")
When going peer to peer with the appr.tc example everything seams to work well. However, my current setup is Chrome \<-\> Wowza \<-\> iOS Safari. The video freezes in the safari webbrowser after some time. On that iOS device… --- ## [NVIDIA Quadro P5000 encoding in linux working on GPU but also using CPU](https://community.wowza.com/t/nvidia-quadro-p5000-encoding-in-linux-working-on-gpu-but-also-using-cpu/53585)
**Author:** [@Aleksandar\_Stojcevsk](https://community.wowza.com/u/Aleksandar_Stojcevsk)\ **Replies:** 4\ **Last updated:** [June 28, 2019, 7:46am UTC](https://community.wowza.com/t/nvidia-quadro-p5000-encoding-in-linux-working-on-gpu-but-also-using-cpu/53585 "2019-06-28T07:46:22Z")
Hi, I have NVIDIA Quadro K5000 running on Ubuntu Server 18.04. Transcoder is configured to encode 3 bitrates 1080p, 720p and 320p using “NVENC”. With “nvidia-smi” command i can see Wowza running process on GPU, so the… --- ## [Current DVR time tried to move backwards](https://community.wowza.com/t/current-dvr-time-tried-to-move-backwards/53544)
**Author:** [@Anurag\_Saini](https://community.wowza.com/u/Anurag_Saini)\ **Replies:** 1\ **Last updated:** [June 27, 2019, 2:59pm UTC](https://community.wowza.com/t/current-dvr-time-tried-to-move-backwards/53544 "2019-06-27T14:59:09Z")
I am currently getting this error in my logs for WSE-4.7.7: DvrStreamStoreBase.changeCurrentTime\[live/definst/office3.stream\_160p/office3.stream\_160p.0\] : Current DVR time tried to move backwards. Ignored new time. Old t… --- ## [Connection timeout](https://community.wowza.com/t/connection-timeout/33755)
**Author:** [@Michel\_OLLIVIER](https://community.wowza.com/u/Michel_OLLIVIER)\ **Replies:** 14\ **Last updated:** [June 27, 2019, 2:57pm UTC](https://community.wowza.com/t/connection-timeout/33755 "2019-06-27T14:57:24Z")
Hi, For some unknown reason I got multiple disconnections from WMS. I got “session disconnected” message in the log console. I think it is perhaps due to a timeout on connection (On client side, I’m using a Flash player… --- ## [How the decryption of '.ts' files in hls streaming in wowza works?](https://community.wowza.com/t/how-the-decryption-of-ts-files-in-hls-streaming-in-wowza-works/53542)
**Author:** [@sidd\_sidd](https://community.wowza.com/u/sidd_sidd)\ **Replies:** 6\ **Last updated:** [June 27, 2019, 2:53pm UTC](https://community.wowza.com/t/how-the-decryption-of-ts-files-in-hls-streaming-in-wowza-works/53542 "2019-06-27T14:53:02Z")
The chunk-list file contains the URI for the decryption key and the list of encrypted ‘.ts’ files. At which point the decryption of the ‘.ts’ files happen, when we play the file in a media element player. --- ## [features cloud servers and hosting](https://community.wowza.com/t/features-cloud-servers-and-hosting/48294)
**Author:** [@fabio\_schiano](https://community.wowza.com/u/fabio_schiano)\ **Replies:** 2\ **Last updated:** [June 27, 2019, 11:40am UTC](https://community.wowza.com/t/features-cloud-servers-and-hosting/48294 "2019-06-27T11:40:56Z")
hi, I have a project to create a site able to see live video, I want to know what features should have hosting and cloud servers to choose the best. P.S. I shall accept tips for creating the site. --- ## [M3u8 file from Transcoder only provide 2 kinds of resolution](https://community.wowza.com/t/m3u8-file-from-transcoder-only-provide-2-kinds-of-resolution/53582)
**Author:** [@Oscar\_WONG](https://community.wowza.com/u/Oscar_WONG)\ **Replies:** 2\ **Last updated:** [June 26, 2019, 9:09pm UTC](https://community.wowza.com/t/m3u8-file-from-transcoder-only-provide-2-kinds-of-resolution/53582 "2019-06-26T21:09:20Z")
I have enabled like 4 presets for my transcoder and I have included all presets in the stream name group, however, Wowza stream engine only outputs 2 kinds of resolution for the m3u8. Where could I eliminate this limitat… --- ## [DVR: Null manifest entry](https://community.wowza.com/t/dvr-null-manifest-entry/53545)
**Author:** [@Anurag\_Saini](https://community.wowza.com/u/Anurag_Saini)\ **Replies:** 2\ **Last updated:** [June 26, 2019, 3:47pm UTC](https://community.wowza.com/t/dvr-null-manifest-entry/53545 "2019-06-26T15:47:55Z")
I am currently getting this in my error logs on WSE-4.7.7: DvrStreamManagerBase.addManifestEntries\[live/definst/office1.stream\] : entry is null. What does this error mean? Comment if you need more logs or information. … --- ## [Scalable architecture for Google Cloud Platform with CDN distribution](https://community.wowza.com/t/scalable-architecture-for-google-cloud-platform-with-cdn-distribution/53579)
**Author:** [@Nikita\_Gaer](https://community.wowza.com/u/Nikita_Gaer)\ **Replies:** 1\ **Last updated:** [June 26, 2019, 10:32am UTC](https://community.wowza.com/t/scalable-architecture-for-google-cloud-platform-with-cdn-distribution/53579 "2019-06-26T10:32:54Z")
Hello! We are trying to build live stream application which should be able to handle thousands of simultaneous live streams and thousands of viewers per each live stream. We going to use Google Cloud Platform for that. … --- ## [Gocoder RTMP stream](https://community.wowza.com/t/gocoder-rtmp-stream/53569)
**Author:** [@David\_DeVore](https://community.wowza.com/u/David_DeVore)\ **Replies:** 1\ **Last updated:** [June 25, 2019, 4:58pm UTC](https://community.wowza.com/t/gocoder-rtmp-stream/53569 "2019-06-25T16:58:47Z")
Would like to use the Gocoder as a secondary camera for a livestream. We use a cloud based switcher that provides the RTMP url and key to input into device being used. I cant seem to grasp the workflow on how to make thi… --- ## [Wowza audio only stream](https://community.wowza.com/t/wowza-audio-only-stream/53575)
**Author:** [@Mark\_Amber1](https://community.wowza.com/u/Mark_Amber1)\ **Replies:** 1\ **Last updated:** [June 25, 2019, 4:35pm UTC](https://community.wowza.com/t/wowza-audio-only-stream/53575 "2019-06-25T16:35:51Z")
I am trying to do an audio only stream. I have just set up a new streaming engine and the RTP stream works in VLC. When I set the RTP stream to go to Wowza it shows the correct bitrate but then when I try to tune in with… --- ## [Can I publish my stream from a Tizen web application?](https://community.wowza.com/t/can-i-publish-my-stream-from-a-tizen-web-application/53570)
**Author:** [@Francesco\_Gerardi](https://community.wowza.com/u/Francesco_Gerardi)\ **Replies:** 2\ **Last updated:** [June 25, 2019, 3:01pm UTC](https://community.wowza.com/t/can-i-publish-my-stream-from-a-tizen-web-application/53570 "2019-06-25T15:01:52Z")
I am developing an alarm management application on a wearable device. It is a Web application (HTML and Javascript). When the alarm is triggered, in addition to sending the alarm status to the control panel, it should re… --- ## [My rtsp link is not working in wowza engine but it is working well in VLC](https://community.wowza.com/t/my-rtsp-link-is-not-working-in-wowza-engine-but-it-is-working-well-in-vlc/53559)
**Author:** [@Rishi\_Sandhu](https://community.wowza.com/u/Rishi_Sandhu)\ **Replies:** 1\ **Last updated:** [June 24, 2019, 10:28pm UTC](https://community.wowza.com/t/my-rtsp-link-is-not-working-in-wowza-engine-but-it-is-working-well-in-vlc/53559 "2019-06-24T22:28:10Z")
Hello Team, I have installed WOWZA streaming engine on Windows platform and with my Hikvision IP camera trying to setup streaming. I have tested engine with your test rtsp link and it is working fine. But my rtsp link … --- ## [MPEG-DASH - "manifest.mpd" configuration](https://community.wowza.com/t/mpeg-dash-manifest-mpd-configuration/43669)
**Author:** [@Ilya\_Bychkov](https://community.wowza.com/u/Ilya_Bychkov)\ **Replies:** 4\ **Last updated:** [June 24, 2019, 3:56pm UTC](https://community.wowza.com/t/mpeg-dash-manifest-mpd-configuration/43669 "2019-06-24T15:56:30Z")
Hello All, I have a question about DASH. I wanted to play a VOD over MPEG-DASH and have noticed that Wowza is creating a manifest.mpd file. Can you tell me how this file will be created and if I have the possibility to … --- ## [RTSP link works on VLC but not on Wowza engin](https://community.wowza.com/t/rtsp-link-works-on-vlc-but-not-on-wowza-engin/51359)
**Author:** [@yossi\_sadeh](https://community.wowza.com/u/yossi_sadeh)\ **Replies:** 1\ **Last updated:** [June 24, 2019, 6:09am UTC](https://community.wowza.com/t/rtsp-link-works-on-vlc-but-not-on-wowza-engin/51359 "2019-06-24T06:09:35Z")
Hi, i tried to activate RTSP stream. when i activate it on VLC player it works. when i activate it on my wowza streaming engin 4.7.3 it doesn’t work. both of them(VLC and Wowza) are in the same server. When I pull the… --- ## [Can genkey generate key files in batches?](https://community.wowza.com/t/can-genkey-generate-key-files-in-batches/53521)
**Author:** [@lebert\_party](https://community.wowza.com/u/lebert_party)\ **Replies:** 3\ **Last updated:** [June 21, 2019, 7:52pm UTC](https://community.wowza.com/t/can-genkey-generate-key-files-in-batches/53521 "2019-06-21T19:52:39Z")
I am using the vod hls stream and are ready to protect the HLS stream with AES-128 external encryption. If I have a lot of video files, how do I generate their key files in bulk, because if I generate them one by one, it… --- ## [Problem with Wowza nDVR UTC playlist request api](https://community.wowza.com/t/problem-with-wowza-ndvr-utc-playlist-request-api/53372)
**Author:** [@Anurag\_Saini](https://community.wowza.com/u/Anurag_Saini)\ **Replies:** 4\ **Last updated:** [June 21, 2019, 3:38pm UTC](https://community.wowza.com/t/problem-with-wowza-ndvr-utc-playlist-request-api/53372 "2019-06-21T15:38:22Z")
WSE UTC playlist request api returns playlist of duration lesser than requested. For Example: - http://host/app/stream/playlist.m3u8?DVR&wowzadvrplayliststart=20190517115100&wowzadvrplaylistduration=3600000 The above u… --- ## [My Wowza server restarts automatically unable to find the cause please help](https://community.wowza.com/t/my-wowza-server-restarts-automatically-unable-to-find-the-cause-please-help/53549)
**Author:** [@Sujit\_Patel](https://community.wowza.com/u/Sujit_Patel)\ **Replies:** 4\ **Last updated:** [June 20, 2019, 10:37pm UTC](https://community.wowza.com/t/my-wowza-server-restarts-automatically-unable-to-find-the-cause-please-help/53549 "2019-06-20T22:37:34Z")
My wowza server located on GCP everything is working fine and i haven’t changed anything but from last 3 days its restarts automatically and i’m unable to find the cause and don’t know from where i should start please he… --- ## [Streaming Engine on Windows Server 2019](https://community.wowza.com/t/streaming-engine-on-windows-server-2019/53551)
**Author:** [@LanguageLearningCent](https://community.wowza.com/u/LanguageLearningCent)\ **Replies:** 3\ **Last updated:** [June 20, 2019, 8:04pm UTC](https://community.wowza.com/t/streaming-engine-on-windows-server-2019/53551 "2019-06-20T20:04:49Z")
I’d like to update our server to use Windows Server 2019 but the Wowza site only lists 2012 and 2016 as “supported”. Do any of you know if it will run on 2019? Any problems? Natassia --- ## [Not able to play AAC encoded audio in WebRTC .](https://community.wowza.com/t/not-able-to-play-aac-encoded-audio-in-webrtc/52454)
**Author:** [@Ashutosh\_kumar1](https://community.wowza.com/u/Ashutosh_kumar1)\ **Replies:** 7\ **Last updated:** [June 19, 2019, 9:23pm UTC](https://community.wowza.com/t/not-able-to-play-aac-encoded-audio-in-webrtc/52454 "2019-06-19T21:23:02Z")
Hi , I have steam having audio encoded using AAc and video is encoded using H.264. I want to play this stream using hls and WebRTC . In case of WebRTC audio is not coming . I need to encode the audio using libopus. I am… --- ## [I want to send wowza to MediaPackage](https://community.wowza.com/t/i-want-to-send-wowza-to-mediapackage/53533)
**Author:** [@tatsuya\_kimura](https://community.wowza.com/u/tatsuya_kimura)\ **Replies:** 3\ **Last updated:** [June 19, 2019, 7:16pm UTC](https://community.wowza.com/t/i-want-to-send-wowza-to-mediapackage/53533 "2019-06-19T19:16:03Z")
Hello https://www.wowza.com/docs/how-to-send-apple-hls-streams-to-a-generic-destination I tried referring to the URL The result did not lead to mediapackage PushPublishMap.txt… “entryName”:“live1”, “profile”:“cuper… [Previous page](https://community.wowza.com/c/wowza-streaming-engine/8.md?page=68) [Next page](https://community.wowza.com/c/wowza-streaming-engine/8.md?page=70)