# Wowza Streaming Engine

**URL:** https://community.wowza.com/c/wowza-streaming-engine/8.md?page=31

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**Page:** 32

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## [Limit WebRTC UDP to a single port](https://community.wowza.com/t/limit-webrtc-udp-to-a-single-port/93073)

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**Author:** [@Andy\_Weston](https://community.wowza.com/u/Andy_Weston)\
**Replies:** 0\
**Last updated:** [March 30, 2021, 4:00pm UTC](https://community.wowza.com/t/limit-webrtc-udp-to-a-single-port/93073 "2021-03-30T16:00:33Z")

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Hi, I have a client that wants to “use muxed video/audio/RTCP all in a single UDP port” for WebRTC, is this possible? I have seen this DatagramStartingPort but not a way to limit the ports. Wowza Streaming Engine Serve…

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## [Stream Recording with Timecode](https://community.wowza.com/t/stream-recording-with-timecode/93067)

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**Author:** [@MICHAEL\_BEAUMONT](https://community.wowza.com/u/MICHAEL_BEAUMONT)\
**Replies:** 1\
**Last updated:** [March 29, 2021, 9:47pm UTC](https://community.wowza.com/t/stream-recording-with-timecode/93067 "2021-03-29T21:47:39Z")

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Hi I’m trying to find a way to record incoming streams with “Time of Day” timecode. Currently all my record files if looked at within Adobe Premier don’t have any timecode information. This seems to be for both Auto-r…

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## [Multiple Audio track Issues](https://community.wowza.com/t/multiple-audio-track-issues/93050)

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**Author:** [@Stuart\_DeVaan](https://community.wowza.com/u/Stuart_DeVaan)\
**Replies:** 2\
**Last updated:** [March 29, 2021, 3:29am UTC](https://community.wowza.com/t/multiple-audio-track-issues/93050 "2021-03-29T03:29:55Z")

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I am attempting to send a mpeg-ts stream into Wowza with multiple audio tracks. Following along with this tutorial: Use alternative audio and video tracks with Apple HLS I have followed this tutorial as far as I can te…

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## [Stream recording, can the recordings overlap?](https://community.wowza.com/t/stream-recording-can-the-recordings-overlap/46120)

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**Author:** [@Mindaugas\_Cesonis](https://community.wowza.com/u/Mindaugas_Cesonis)\
**Replies:** 3\
**Last updated:** [March 27, 2021, 10:14am UTC](https://community.wowza.com/t/stream-recording-can-the-recordings-overlap/46120 "2021-03-27T10:14:23Z")

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Hello, We are testing wowza to see if it suits our needs. So far, it seems OK, other than the refusal to create HLS stream with MPEG2 video in it. There is one problem with the stream recording, as far as I found out. …

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## [srt stream file : enable all mpegts options](https://community.wowza.com/t/srt-stream-file-enable-all-mpegts-options/51352)

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**Author:** [@kv\_pham](https://community.wowza.com/u/kv_pham)\
**Replies:** 13\
**Last updated:** [March 26, 2021, 8:22am UTC](https://community.wowza.com/t/srt-stream-file-enable-all-mpegts-options/51352 "2021-03-26T08:22:40Z")

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This request is related to: http://community.wowza.com/community/questions/47190/mpegts-source-with-multiple-videoaudio-pids-to-loc.html At the moment srt protocol only carries mpegts so it would be sensible to be able to m…

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## [NEW RELEASE: Wowza Streaming Engine 4.8.11](https://community.wowza.com/t/new-release-wowza-streaming-engine-4-8-11/93037)

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**Author:** [@Rose\_Power-Wowza\_Com](https://community.wowza.com/u/Rose_Power-Wowza_Com)\
**Replies:** 0\
**Last updated:** [March 23, 2021, 10:46pm UTC](https://community.wowza.com/t/new-release-wowza-streaming-engine-4-8-11/93037 "2021-03-23T22:46:56Z")

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Wowza Streaming Engine 4.8.11 contains a variety of fixes that help to improve the functionality of the media server software. Here’s what’s new: Beamr encoding and decoding for H.264 and H.265 video Replacing missing…

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## [WebRTC publish/play is not enabled for application: videochat](https://community.wowza.com/t/webrtc-publish-play-is-not-enabled-for-application-videochat/211)

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**Author:** [@system](https://community.wowza.com/u/system)\
**Replies:** 2\
**Last updated:** [March 23, 2021, 8:24am UTC](https://community.wowza.com/t/webrtc-publish-play-is-not-enabled-for-application-videochat/211 "2021-03-23T08:24:28Z")

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Hello i’m trying to setup the webrtc features, but so far no success. i can access my server infos with streamlock url, but when trying to play a stream (from rtmp transcoded in vp8),i have the following error: WebRTC …

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## [Drop first few seconds of input streams before transcoding/packaging](https://community.wowza.com/t/drop-first-few-seconds-of-input-streams-before-transcoding-packaging/93023)

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**Author:** [@Laurent\_Bertrand](https://community.wowza.com/u/Laurent_Bertrand)\
**Replies:** 1\
**Last updated:** [March 22, 2021, 3:29pm UTC](https://community.wowza.com/t/drop-first-few-seconds-of-input-streams-before-transcoding-packaging/93023 "2021-03-22T15:29:42Z")

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Is it possible to ask Wowza to drop the incoming stream for a few seconds and only start transcoding/packaging from a key frame, e.g. start transcoding/packaging on the first Key Frame in input streams after x seconds? A…

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## [Restreaming from an external provider](https://community.wowza.com/t/restreaming-from-an-external-provider/93011)

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**Author:** [@Nestor\_Loyo](https://community.wowza.com/u/Nestor_Loyo)\
**Replies:** 1\
**Last updated:** [March 19, 2021, 6:49pm UTC](https://community.wowza.com/t/restreaming-from-an-external-provider/93011 "2021-03-19T18:49:58Z")

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Hi Everyone, I need restreaming a signal from a external provider. The provider wants me to send him an URL and theirs keys so that he can generate the restreaming signal. How do I do this on wowza streaming engine serv…

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## [Basic setup of StreamNameAlias](https://community.wowza.com/t/basic-setup-of-streamnamealias/93002)

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**Author:** [@Anton\_Teterine](https://community.wowza.com/u/Anton_Teterine)\
**Replies:** 1\
**Last updated:** [March 17, 2021, 11:46pm UTC](https://community.wowza.com/t/basic-setup-of-streamnamealias/93002 "2021-03-17T23:46:31Z")

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Hi community, I found number of post about the StreamNameAlias but I am having tough time setting it up. My end scenario is a bit more complex, but even basic test fails. I have an app liveorigin, I have 2 Stream File…

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## [Disconnect RTMP published Stream via API](https://community.wowza.com/t/disconnect-rtmp-published-stream-via-api/93000)

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**Author:** [@Chris\_Clark](https://community.wowza.com/u/Chris_Clark)\
**Replies:** 1\
**Last updated:** [March 17, 2021, 3:25pm UTC](https://community.wowza.com/t/disconnect-rtmp-published-stream-via-api/93000 "2021-03-17T15:25:40Z")

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I have a stream that is published to my WSE via a user’s RTMP camera. I want to limit their streaming time to 120 minutes. How do I disconnect their RTMP stream? I have read numerous other posts in here about how its …

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## [Amazon Marketplace AMI and StreamLock Certificate](https://community.wowza.com/t/amazon-marketplace-ami-and-streamlock-certificate/92904)

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**Author:** [@Mani\_Kandan](https://community.wowza.com/u/Mani_Kandan)\
**Replies:** 3\
**Last updated:** [March 17, 2021, 3:24pm UTC](https://community.wowza.com/t/amazon-marketplace-ami-and-streamlock-certificate/92904 "2021-03-17T15:24:24Z")

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Hi, I have launched Wowza Streaming Engine using Amazon Marketplace AMI (Linux Paid) to get all biilling inside AWS. I am planned to use WebRTC streaming with autoscaling (Origin and edge servers) but it seems SSL has t…

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## [Using Streamlock in AWS pay-as-you-go](https://community.wowza.com/t/using-streamlock-in-aws-pay-as-you-go/53878)

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**Author:** [@Ryan\_Dumont1](https://community.wowza.com/u/Ryan_Dumont1)\
**Replies:** 2\
**Last updated:** [March 17, 2021, 3:21pm UTC](https://community.wowza.com/t/using-streamlock-in-aws-pay-as-you-go/53878 "2021-03-17T15:21:08Z")

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I’m using the Wowza server in the AWS pay-as-you-go model and am trying to secure it with Streamlock. I found the license key in Server.licence. When I apply for an SSL certificate in my Wowza account it says “You have r…

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## [How to stream multiple VOD files like one?](https://community.wowza.com/t/how-to-stream-multiple-vod-files-like-one/92991)

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**Author:** [@Shemar\_Cox](https://community.wowza.com/u/Shemar_Cox)\
**Replies:** 2\
**Last updated:** [March 17, 2021, 3:21pm UTC](https://community.wowza.com/t/how-to-stream-multiple-vod-files-like-one/92991 "2021-03-17T15:21:06Z")

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hi, I have mp4 files recorded in the wowza content folder in chronological order. I can stream them to each user, but I want to stream these files like ‘one’ VOD file. After reading the wowza manual, I found a way to o…

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## [How to configure Wowza Streaming Engine to stream over a public ip address?](https://community.wowza.com/t/how-to-configure-wowza-streaming-engine-to-stream-over-a-public-ip-address/92994)

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**Author:** [@Ahmed\_Ghrib](https://community.wowza.com/u/Ahmed_Ghrib)\
**Replies:** 1\
**Last updated:** [March 17, 2021, 3:18pm UTC](https://community.wowza.com/t/how-to-configure-wowza-streaming-engine-to-stream-over-a-public-ip-address/92994 "2021-03-17T15:18:14Z")

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Hello everyone, I have managed to successfully install Wowza streaming engine locally and tested streaming and playback. Now, I want to stream locally, and have a team member playback the the stream remotely. In other…

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## [Changing Default CORS Headers to Specify a Domain](https://community.wowza.com/t/changing-default-cors-headers-to-specify-a-domain/92256)

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**Author:** [@Derrick\_Freeman1](https://community.wowza.com/u/Derrick_Freeman1)\
**Replies:** 2\
**Last updated:** [March 16, 2021, 9:20pm UTC](https://community.wowza.com/t/changing-default-cors-headers-to-specify-a-domain/92256 "2021-03-16T21:20:02Z")

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How do I change the default CORS Headers to only allow streaming from a specific domain using Wowza Streaming Engine 4.8.5? My reference is this tutorial: https://www.wowza.com/docs/how-to-enable-cross-origin-resource-s…

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## [Transcoder Issues - Jerky video/Low Frame Rates](https://community.wowza.com/t/transcoder-issues-jerky-video-low-frame-rates/39952)

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**Author:** [@Alex\_May](https://community.wowza.com/u/Alex_May)\
**Replies:** 6\
**Last updated:** [March 15, 2021, 2:43pm UTC](https://community.wowza.com/t/transcoder-issues-jerky-video-low-frame-rates/39952 "2021-03-15T14:43:23Z")

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Hi there, I’ve just setup an EC2 instance with a Wowza AMI v4.0.1 (as suggested on the guides) and am sending a 5mbps stream from Wirecast to transrate with the Transcoder AddOn to 4 different bitrates. When I first st…

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## [Corrupted MP4 long running stream recording](https://community.wowza.com/t/corrupted-mp4-long-running-stream-recording/92916)

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**Author:** [@Simone\_Marrone](https://community.wowza.com/u/Simone_Marrone)\
**Replies:** 5\
**Last updated:** [March 15, 2021, 2:16pm UTC](https://community.wowza.com/t/corrupted-mp4-long-running-stream-recording/92916 "2021-03-15T14:16:35Z")

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Hi, we’re testing a wowza streaming engine instance (v 4.8.9) on aws. Today we tried to perform a long run stream with recording (7 hours stream). We stopped the stream and then closed the recorder via API as usual. C…

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## [LLHLS stream with TS container format for segments and parts](https://community.wowza.com/t/llhls-stream-with-ts-container-format-for-segments-and-parts/92989)

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**Author:** [@shriyans\_Kapoor](https://community.wowza.com/u/shriyans_Kapoor)\
**Replies:** 0\
**Last updated:** [March 15, 2021, 11:45am UTC](https://community.wowza.com/t/llhls-stream-with-ts-container-format-for-segments-and-parts/92989 "2021-03-15T11:45:16Z")

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Hi, Is there a way to generate TS segments for LL-HLS stream? I am able to stream using cmafpacketizer but with fmp4 chunks, however it has separate channels for audio and video which I do not want. What can I do here?

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## [Streaming issue with Mobile App](https://community.wowza.com/t/streaming-issue-with-mobile-app/92979)

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**Author:** [@Onur\_Suluk](https://community.wowza.com/u/Onur_Suluk)\
**Replies:** 0\
**Last updated:** [March 12, 2021, 6:31pm UTC](https://community.wowza.com/t/streaming-issue-with-mobile-app/92979 "2021-03-12T18:31:05Z")

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Hi everyone, I made a mobile application and I want to stream some channels to my users. Source is IPTV but it has connection limit as you can guess. How can I stream channels to my users without any limit? Which servic…

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## [Multicast Duplicate Packets On WOWZA Streaming](https://community.wowza.com/t/multicast-duplicate-packets-on-wowza-streaming/92974)

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**Author:** [@Jonathan\_Davis1](https://community.wowza.com/u/Jonathan_Davis1)\
**Replies:** 2\
**Last updated:** [March 12, 2021, 3:13pm UTC](https://community.wowza.com/t/multicast-duplicate-packets-on-wowza-streaming/92974 "2021-03-12T15:13:17Z")

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Hi There, I’m trying to test redundancy multicast traffic from 2 sources and the same multicast group. EX. Wan link A source IP 10.10.10.1 multicast group 240.1.1.1/24 and Wan link B source IP 20.20.20.1 multicast group…

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## [Cancelling Wowza Streaming Engine Monthly Subscription](https://community.wowza.com/t/cancelling-wowza-streaming-engine-monthly-subscription/46304)

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**Author:** [@The\_Pork\_Chat](https://community.wowza.com/u/The_Pork_Chat)\
**Replies:** 4\
**Last updated:** [March 12, 2021, 2:36pm UTC](https://community.wowza.com/t/cancelling-wowza-streaming-engine-monthly-subscription/46304 "2021-03-12T14:36:21Z")

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It’s been over a week since I used the cancel form in my account with no response from Wowza. I emailed billing and received no response. I called the phone number and left a message with billing earlier this week with…

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## [Most of the calls for llhls stream failing](https://community.wowza.com/t/most-of-the-calls-for-llhls-stream-failing/92976)

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**Author:** [@shriyans\_Kapoor](https://community.wowza.com/u/shriyans_Kapoor)\
**Replies:** 0\
**Last updated:** [March 12, 2021, 3:35am UTC](https://community.wowza.com/t/most-of-the-calls-for-llhls-stream-failing/92976 "2021-03-12T03:35:23Z")

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Hi, I am following the deliver low latency stream article to have a basic working setup of llhls stream. I’m generating an rtmp stream via obs. I am using only cmaf packetizer with all the settings for low latency ment…

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## [Pixelation in cameras streams](https://community.wowza.com/t/pixelation-in-cameras-streams/92960)

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**Author:** [@Rafael\_Moreno\_Hay](https://community.wowza.com/u/Rafael_Moreno_Hay)\
**Replies:** 1\
**Last updated:** [March 11, 2021, 10:55pm UTC](https://community.wowza.com/t/pixelation-in-cameras-streams/92960 "2021-03-11T22:55:58Z")

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we are running streamind engine in a server with DTI cameras. When we ask for 32 streams from 2 cameras (16 streams of each camera), We have apreciate pixelation. The configuration of the cameras sre H.264 704\*576 25 f…

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## [Alternate Surround Audio in HLS and MPD SMIL](https://community.wowza.com/t/alternate-surround-audio-in-hls-and-mpd-smil/92949)

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**Author:** [@Joost\_Sanders](https://community.wowza.com/u/Joost_Sanders)\
**Replies:** 1\
**Last updated:** [March 11, 2021, 10:41pm UTC](https://community.wowza.com/t/alternate-surround-audio-in-hls-and-mpd-smil/92949 "2021-03-11T22:41:58Z")

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Hi, We have ABR streams with mutiple audio and video bitrates and would like to add extra audio channels with surround sound in AAC and AC-3 formats. We’ve successfully made the SMIL for MPD but for HLS it’s giving us n…

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## [How to add routes to Wowza Container](https://community.wowza.com/t/how-to-add-routes-to-wowza-container/92966)

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**Author:** [@ruben\_calzadilla](https://community.wowza.com/u/ruben_calzadilla)\
**Replies:** 1\
**Last updated:** [March 11, 2021, 3:07pm UTC](https://community.wowza.com/t/how-to-add-routes-to-wowza-container/92966 "2021-03-11T15:07:29Z")

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Hi, I am running Wowza on a container in an AWS EC2. I am also running another application (also a container) on the same AWS EC2. I would like one of the applications to send content to Wowza using UDP (Multicast). I…

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## [Get empty close caption sometimes](https://community.wowza.com/t/get-empty-close-caption-sometimes/92948)

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**Author:** [@Trick\_Chen](https://community.wowza.com/u/Trick_Chen)\
**Replies:** 2\
**Last updated:** [March 10, 2021, 1:59am UTC](https://community.wowza.com/t/get-empty-close-caption-sometimes/92948 "2021-03-10T01:59:37Z")

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here is my smil file \<?xml version="1.0" encoding="UTF-8" standalone="no"?\> \<smil title=""\> \<head/\> \<body\> \<switch\> \<video height="480" src="2588\_720x480" systemLanguage="…

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## [DRM support for Wowza CDN](https://community.wowza.com/t/drm-support-for-wowza-cdn/50919)

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**Author:** [@Nicolas\_Levy](https://community.wowza.com/u/Nicolas_Levy)\
**Replies:** 2\
**Last updated:** [March 9, 2021, 8:45pm UTC](https://community.wowza.com/t/drm-support-for-wowza-cdn/50919 "2021-03-09T20:45:21Z")

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Hi Does Wowza CDN have support for DRMs (Widevine, Fairplay) using Wowza Streaming Engine as origin? Regards, Nico

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## [SRT Stream Target in "waiting mode"](https://community.wowza.com/t/srt-stream-target-in-waiting-mode/53317)

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**Author:** [@Thomas\_Van\_Stockum](https://community.wowza.com/u/Thomas_Van_Stockum)\
**Replies:** 2\
**Last updated:** [March 9, 2021, 7:14pm UTC](https://community.wowza.com/t/srt-stream-target-in-waiting-mode/53317 "2021-03-09T19:14:16Z")

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I have configured an SRT stream target pointing to a known-working SRT destination and port. I am sourcing off of an RTMP ingest that I have verified as good and active. Stream targets in enabled, and the actual SRT targ…

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## [UDP: how to enable NACK with Wowza Streaming Engine XML?](https://community.wowza.com/t/udp-how-to-enable-nack-with-wowza-streaming-engine-xml/92624)

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**Author:** [@Jason\_Nottingham](https://community.wowza.com/u/Jason_Nottingham)\
**Replies:** 5\
**Last updated:** [March 9, 2021, 7:02pm UTC](https://community.wowza.com/t/udp-how-to-enable-nack-with-wowza-streaming-engine-xml/92624 "2021-03-09T19:02:16Z")

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I searched here for ‘NACK’ and didn’t find a good match in the top results. says Note: If you use UDP ICE candidates, enabling NACK messages is recommended to allow for retransmission of lost packets. See the optio…

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