# Wowza Streaming Engine

**URL:** https://community.wowza.com/c/wowza-streaming-engine/8.md?page=108

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**Page:** 109

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## [Unable to restream from multiple sources, samples work](https://community.wowza.com/t/unable-to-restream-from-multiple-sources-samples-work/50185)

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**Author:** [@Nick\_Santos](https://community.wowza.com/u/Nick_Santos)\
**Replies:** 1\
**Last updated:** [November 21, 2017, 6:59am UTC](https://community.wowza.com/t/unable-to-restream-from-multiple-sources-samples-work/50185 "2017-11-21T06:59:48Z")

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Hi there, I have a new Wowza Streaming Engine installation that I’m trying to get set up to restream an Axis camera - the P5515. So far, here are the symptoms: First, Wowza seems unable to connect to the camera. I see …

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## [Is Wowza Player Builder available for AWS Marketplace License?](https://community.wowza.com/t/is-wowza-player-builder-available-for-aws-marketplace-license/50186)

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**Author:** [@Yuma\_Sugimura](https://community.wowza.com/u/Yuma_Sugimura)\
**Replies:** 0\
**Last updated:** [November 21, 2017, 5:58am UTC](https://community.wowza.com/t/is-wowza-player-builder-available-for-aws-marketplace-license/50186 "2017-11-21T05:58:12Z")

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Hi, I am thinking of launching an EC2 Instance with Wowza Streaming Engine 4: Pro Edition (HVM) AMI from AWS Marketplace. https://aws.amazon.com/marketplace/pp/B012BW3WB Is Wowza Player Builder available in this case? …

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## [WebRTC Questions](https://community.wowza.com/t/webrtc-questions/50158)

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**Author:** [@Cody\_Uptain1](https://community.wowza.com/u/Cody_Uptain1)\
**Replies:** 2\
**Last updated:** [November 20, 2017, 3:39pm UTC](https://community.wowza.com/t/webrtc-questions/50158 "2017-11-20T15:39:07Z")

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I have a website where "streamers’ push RTMP streams to Wowza and the viewers playback the streams via WebRTC. Does using WebRTC with Wowza limit the max amount of viewers as opposed to say RTMP? I know that with trad…

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## [No audio when using GoCoder (with WebRTC)](https://community.wowza.com/t/no-audio-when-using-gocoder-with-webrtc/50175)

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**Author:** [@john\_mcqueen](https://community.wowza.com/u/john_mcqueen)\
**Replies:** 2\
**Last updated:** [November 20, 2017, 2:55pm UTC](https://community.wowza.com/t/no-audio-when-using-gocoder-with-webrtc/50175 "2017-11-20T14:55:32Z")

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When encoding with GoCoder my WebRTC stream has no audio. But RTMP playback does have audio. Audio works via WebRTC when encoding with OBS though. I have audio only transcoding setup to transcode AAC to Opus. What could…

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## [Do I need a STUN server with Wowza (WebRTC)?](https://community.wowza.com/t/do-i-need-a-stun-server-with-wowza-webrtc/50173)

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**Author:** [@john\_mcqueen](https://community.wowza.com/u/john_mcqueen)\
**Replies:** 0\
**Last updated:** [November 20, 2017, 2:29am UTC](https://community.wowza.com/t/do-i-need-a-stun-server-with-wowza-webrtc/50173 "2017-11-20T02:29:08Z")

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Do I need to pass in STUN servers to the RTCPeerConnection object when using WebRTC with Wowza?

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## [empty captions when loading SMIL from S3](https://community.wowza.com/t/empty-captions-when-loading-smil-from-s3/46338)

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**Author:** [@Brian\_Laske](https://community.wowza.com/u/Brian_Laske)\
**Replies:** 2\
**Last updated:** [November 20, 2017, 2:27am UTC](https://community.wowza.com/t/empty-captions-when-loading-smil-from-s3/46338 "2017-11-20T02:27:25Z")

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I’m having trouble getting webvtt captions to work when streaming HLS from a vods3cf application. My SMIL file looks like this: \<smil\> \<head /\> \<body\> \<switch\> \<video src="mp4:video-hd.mp4" system-bitrate…

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## [About Critical Security Update Released](https://community.wowza.com/t/about-critical-security-update-released/49863)

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**Author:** [@Stefano](https://community.wowza.com/u/Stefano)\
**Replies:** 3\
**Last updated:** [November 20, 2017, 1:29am UTC](https://community.wowza.com/t/about-critical-security-update-released/49863 "2017-11-20T01:29:28Z")

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Hi All, A question about this https://www.wowza.com/support/critical-update Following the instruction I stop the service using the command: sudo service WowzaStreamingEngineManager start Then I use the command: sudo…

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## [Not showing app](https://community.wowza.com/t/not-showing-app/50172)

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**Author:** [@khushhal\_Latif](https://community.wowza.com/u/khushhal_Latif)\
**Replies:** 1\
**Last updated:** [November 19, 2017, 7:09pm UTC](https://community.wowza.com/t/not-showing-app/50172 "2017-11-19T19:09:28Z")

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Missing title. Missing body.

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## [How to divide multiple audio track?](https://community.wowza.com/t/how-to-divide-multiple-audio-track/50162)

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**Author:** [@Robert\_Muradyan](https://community.wowza.com/u/Robert_Muradyan)\
**Replies:** 1\
**Last updated:** [November 18, 2017, 8:05pm UTC](https://community.wowza.com/t/how-to-divide-multiple-audio-track/50162 "2017-11-18T20:05:16Z")

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Hello! I have an HD-SDI stream of TV channel with multiple audio tracks (languages) that come to Decklink capture card via SDI cable. Video and all of the audio tracks are determinded by the capture card. I need to creat…

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## [How can I config log4j for send wowza logs?](https://community.wowza.com/t/how-can-i-config-log4j-for-send-wowza-logs/50155)

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**Author:** [@Mario\_Francia](https://community.wowza.com/u/Mario_Francia)\
**Replies:** 1\
**Last updated:** [November 18, 2017, 7:57pm UTC](https://community.wowza.com/t/how-can-i-config-log4j-for-send-wowza-logs/50155 "2017-11-18T19:57:59Z")

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Hi! I want to send the wowza logs to a remote server that has a logstash installed. For that, I want to use log4j but doesn´t work, this is my config: Access appender (UDP) - uncomment and add to rootCategory list on f…

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## [Hardware Requirements for 1000 concurrent connections...](https://community.wowza.com/t/hardware-requirements-for-1000-concurrent-connections/50146)

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**Author:** [@david\_bonilla1](https://community.wowza.com/u/david_bonilla1)\
**Replies:** 1\
**Last updated:** [November 18, 2017, 2:55am UTC](https://community.wowza.com/t/hardware-requirements-for-1000-concurrent-connections/50146 "2017-11-18T02:55:36Z")

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I have a client that has a daily show with about 700-800 concurrent connections looking to move to in house server. Linux or Windows and what is the best vm setup situation. Your recommended spec for a server. T…

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## [EngineManager behind an Apache Reverse Proxy](https://community.wowza.com/t/enginemanager-behind-an-apache-reverse-proxy/50160)

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**Author:** [@Lars\_Ove\_Claesson1](https://community.wowza.com/u/Lars_Ove_Claesson1)\
**Replies:** 0\
**Last updated:** [November 17, 2017, 11:22pm UTC](https://community.wowza.com/t/enginemanager-behind-an-apache-reverse-proxy/50160 "2017-11-17T23:22:42Z")

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Hi, all. I am using an Apache reverse proxy to make the stream URLs more user friendly as well as it supports some other functionality/pages within the same domain name. This works fine for the streams, but I would als…

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## [\#EXT-X-PROGRAM-DATE-TIME on NDVR chunklists](https://community.wowza.com/t/ext-x-program-date-time-on-ndvr-chunklists/49783)

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**Author:** [@Isobelle\_Benge](https://community.wowza.com/u/Isobelle_Benge)\
**Replies:** 2\
**Last updated:** [November 17, 2017, 4:29pm UTC](https://community.wowza.com/t/ext-x-program-date-time-on-ndvr-chunklists/49783 "2017-11-17T16:29:05Z")

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Hi We have implemented the Wowza module to correctly add the #EXT-X-PROGRAM-DATE-TIME data to the live HLS chunklists, however on ndvr requests the header is not added http://127.0.0.1:1935/live/stream.smil/chunklist\_w…

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## [Error on "Startup Streams"](https://community.wowza.com/t/error-on-startup-streams/46147)

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**Author:** [@Wiebe\_Veenstra](https://community.wowza.com/u/Wiebe_Veenstra)\
**Replies:** 4\
**Last updated:** [November 17, 2017, 3:33pm UTC](https://community.wowza.com/t/error-on-startup-streams/46147 "2017-11-17T15:33:07Z")

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Hi, I have a error on my page startup streams! What is the problem ?

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## [HLS AES-128 encryption does not work on transcoded streams](https://community.wowza.com/t/hls-aes-128-encryption-does-not-work-on-transcoded-streams/50151)

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**Author:** [@edaich](https://community.wowza.com/u/edaich)\
**Replies:** 2\
**Last updated:** [November 17, 2017, 3:19pm UTC](https://community.wowza.com/t/hls-aes-128-encryption-does-not-work-on-transcoded-streams/50151 "2017-11-17T15:19:12Z")

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I have AES-128 encryption working for all streams except real-time transcoded streams. I have a .key file of the transcoded stream name in the keys directory and it doesn’t seem to take. In this case, the transcoded str…

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## [EXT-X-PROGRAM-DATE-TIME not visible in m3u8 of media playlist](https://community.wowza.com/t/ext-x-program-date-time-not-visible-in-m3u8-of-media-playlist/50154)

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**Author:** [@Arvind\_Kumar1](https://community.wowza.com/u/Arvind_Kumar1)\
**Replies:** 0\
**Last updated:** [November 17, 2017, 7:55am UTC](https://community.wowza.com/t/ext-x-program-date-time-not-visible-in-m3u8-of-media-playlist/50154 "2017-11-17T07:55:09Z")

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I have performed all the step mentioned on wowza site but EXT-X-PROGRAM-DATE-TIME is not getting displayed into the m3u8 file. I also followed the related question on the forum but no luck. I am running the wowza server …

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## [Can't get configuration URL to Work with Teradek](https://community.wowza.com/t/cant-get-configuration-url-to-work-with-teradek/50150)

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**Author:** [@Brandon\_Gabbard](https://community.wowza.com/u/Brandon_Gabbard)\
**Replies:** 1\
**Last updated:** [November 17, 2017, 2:50am UTC](https://community.wowza.com/t/cant-get-configuration-url-to-work-with-teradek/50150 "2017-11-17T02:50:21Z")

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I can’t seem to get the configuration URL to populate anything in our Teradek VidiU Pro. When I past the link within the Teradek WebUI it does absolutely nothing. When I enter that URL into my browser I receive a 404 err…

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## [Android Recorded video in portrait mode show horizontal in JWPlayer](https://community.wowza.com/t/android-recorded-video-in-portrait-mode-show-horizontal-in-jwplayer/42048)

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**Author:** [@satish\_bhor](https://community.wowza.com/u/satish_bhor)\
**Replies:** 6\
**Last updated:** [November 16, 2017, 12:18pm UTC](https://community.wowza.com/t/android-recorded-video-in-portrait-mode-show-horizontal-in-jwplayer/42048 "2017-11-16T12:18:05Z")

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Hi Team, I Have published on stream from android mobile in portrait mode and after successful publish when i tried to play it from JWPlayer it shown in horizontal format. Is there any adition settings required from Wow…

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## [Zero sized function log error](https://community.wowza.com/t/zero-sized-function-log-error/50144)

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**Author:** [@Chris\_Grey](https://community.wowza.com/u/Chris_Grey)\
**Replies:** 0\
**Last updated:** [November 16, 2017, 10:35am UTC](https://community.wowza.com/t/zero-sized-function-log-error/50144 "2017-11-16T10:35:20Z")

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Hello, Just before updating to version 4.7.3 I’ve been getting this error in my logs: 2017-11-16 04:21:42 comment server Zero sized function (client:1277928218:FMLE/3.0 (compatible; FMSc/1.0)): type:20 size:0: x-dura…

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## [java.io.FileNotFoundException errors upgrading to 4.7.3](https://community.wowza.com/t/java-io-filenotfoundexception-errors-upgrading-to-4-7-3/50143)

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**Author:** [@Alessandro\_Carpita](https://community.wowza.com/u/Alessandro_Carpita)\
**Replies:** 1\
**Last updated:** [November 16, 2017, 9:02am UTC](https://community.wowza.com/t/java-io-filenotfoundexception-errors-upgrading-to-4-7-3/50143 "2017-11-16T09:02:51Z")

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Hello, I just updated my Streaming Engine instance to 4.7.3, but I got 2 java.io.FileNotFoundException errors during execution of update script, regarding the files: WowzaStreamingEngine-Update-4.7.3/linux/…/files/lib-…

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## [Does Perpetual Pro has limitation about inbound?](https://community.wowza.com/t/does-perpetual-pro-has-limitation-about-inbound/50141)

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**Author:** [@kawakami\_koji](https://community.wowza.com/u/kawakami_koji)\
**Replies:** 2\
**Last updated:** [November 16, 2017, 12:06am UTC](https://community.wowza.com/t/does-perpetual-pro-has-limitation-about-inbound/50141 "2017-11-16T00:06:32Z")

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I understood “Trial version limited to 3 inbound.”, So what Perpetual Pro? Does Perpetual Pro has limitation about inbound? Regards.

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## [Differents licenses between Wowza Streaming Engine and Wowza Player](https://community.wowza.com/t/differents-licenses-between-wowza-streaming-engine-and-wowza-player/50104)

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**Author:** [@RIO\_PACIFICO](https://community.wowza.com/u/RIO_PACIFICO)\
**Replies:** 1\
**Last updated:** [November 15, 2017, 2:52pm UTC](https://community.wowza.com/t/differents-licenses-between-wowza-streaming-engine-and-wowza-player/50104 "2017-11-15T14:52:36Z")

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I bought a license with Wowza streaming engine, but the Wowza player show me another license. Is normal?

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## [Architecture for streaming channel x in 2 environments](https://community.wowza.com/t/architecture-for-streaming-channel-x-in-2-environments/50128)

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**Author:** [@vijaykishan\_shyamsun](https://community.wowza.com/u/vijaykishan_shyamsun)\
**Replies:** 8\
**Last updated:** [November 14, 2017, 10:07pm UTC](https://community.wowza.com/t/architecture-for-streaming-channel-x-in-2-environments/50128 "2017-11-14T22:07:52Z")

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I have got a channel X obtained through our dishfarm. This channel has to run on 2 environments A and B A should stream only 2 bit rates ( 480 , 576 ) for channel X B should stream 144,240,360,480,720 ) for channel X H…

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## [Configuring Crestron Encoders](https://community.wowza.com/t/configuring-crestron-encoders/50137)

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**Author:** [@Neil\_Briscoe](https://community.wowza.com/u/Neil_Briscoe)\
**Replies:** 0\
**Last updated:** [November 14, 2017, 9:13pm UTC](https://community.wowza.com/t/configuring-crestron-encoders/50137 "2017-11-14T21:13:07Z")

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Hi All, Still new to setting up our encoders. I have two Crestron encoders I am working on setting up, a Crestron DMC-STRO and DM-TXRX-100-STR. On the Encoders, I have no problem setting them up to have the receiver ini…

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## [Multiple video tracks for multi-angle camera view](https://community.wowza.com/t/multiple-video-tracks-for-multi-angle-camera-view/50133)

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**Author:** [@Paramveer\_Singh](https://community.wowza.com/u/Paramveer_Singh)\
**Replies:** 0\
**Last updated:** [November 14, 2017, 8:25pm UTC](https://community.wowza.com/t/multiple-video-tracks-for-multi-angle-camera-view/50133 "2017-11-14T20:25:58Z")

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Hi, i’ve been struggling to set up multi-camera stream using wowza. What i’ve tried so far is using a single video file created from two different video files using yamb. Then created a smil file to access the tracks av…

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## [\[DASH\] Is it possible to customized the representation id in manifest.mpd?](https://community.wowza.com/t/dash-is-it-possible-to-customized-the-representation-id-in-manifest-mpd/47085)

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**Author:** [@louis\_liu](https://community.wowza.com/u/louis_liu)\
**Replies:** 2\
**Last updated:** [November 14, 2017, 12:59pm UTC](https://community.wowza.com/t/dash-is-it-possible-to-customized-the-representation-id-in-manifest-mpd/47085 "2017-11-14T12:59:06Z")

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Is it possible to customize the representation id in manifest.mpd? Thanks in advance. – Louis

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## [how to configure RTSP/RTP multicast streaming](https://community.wowza.com/t/how-to-configure-rtsp-rtp-multicast-streaming/42924)

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**Author:** [@Ji\_Hoon\_Lee](https://community.wowza.com/u/Ji_Hoon_Lee)\
**Replies:** 4\
**Last updated:** [November 13, 2017, 3:41pm UTC](https://community.wowza.com/t/how-to-configure-rtsp-rtp-multicast-streaming/42924 "2017-11-13T15:41:19Z")

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Dear Sir, Can I ask if it is possible to configure the Wowza media server to do RTSP/RTP multicast streaming? I know it supports two types of transport mode, udp-unicast and tcp-interleaved. I’m wondering if it also s…

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## [ICE failures in firefox on audio only WebRTC streams](https://community.wowza.com/t/ice-failures-in-firefox-on-audio-only-webrtc-streams/50006)

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**Author:** [@Jay\_Charles1](https://community.wowza.com/u/Jay_Charles1)\
**Replies:** 7\
**Last updated:** [November 13, 2017, 3:30pm UTC](https://community.wowza.com/t/ice-failures-in-firefox-on-audio-only-webrtc-streams/50006 "2017-11-13T15:30:17Z")

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Has anyone had problems with firefox encountering ICE problems when consuming audio only streams from wowza? I’m getting random switches to a disconnected state with firefox complaining about a consent refresh request ti…

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## [VOD AES encryption for delivery thru CDN](https://community.wowza.com/t/vod-aes-encryption-for-delivery-thru-cdn/50127)

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**Author:** [@Niksa\_Arneric](https://community.wowza.com/u/Niksa_Arneric)\
**Replies:** 0\
**Last updated:** [November 13, 2017, 1:26pm UTC](https://community.wowza.com/t/vod-aes-encryption-for-delivery-thru-cdn/50127 "2017-11-13T13:26:19Z")

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Hi we would like to encrypt our VOD files delivered thru HLS over CDN. Because of caching mechanism we can’t use different AES-128 key for every client. Is there way to add single encryption key for all files on Video…

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## [Unable to connect to wowza streaming cloud](https://community.wowza.com/t/unable-to-connect-to-wowza-streaming-cloud/50125)

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**Author:** [@Hitesh\_Khanna](https://community.wowza.com/u/Hitesh_Khanna)\
**Replies:** 1\
**Last updated:** [November 13, 2017, 11:55am UTC](https://community.wowza.com/t/unable-to-connect-to-wowza-streaming-cloud/50125 "2017-11-13T11:55:27Z")

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I am building a progressive web application that sends live feed over wowza cloud to host page URL But the inbound connection is still not satisfied. I am using rstp. Can anyone help me establish connection between my…

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