# Wowza Streaming Engine

**URL:** https://community.wowza.com/c/wowza-streaming-engine/8.md?page=78

[Latest](https://community.wowza.com/latest.md) · [Categories](https://community.wowza.com/categories.md) · [Tags](https://community.wowza.com/tags.md)

**Page:** 79

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## [Recommended production hardware](https://community.wowza.com/t/recommended-production-hardware/52783)

<div class="topic-metadata">

**Author:** [@Layal\_Badawi](https://community.wowza.com/u/Layal_Badawi)\
**Replies:** 1\
**Last updated:** [February 4, 2019, 8:59am UTC](https://community.wowza.com/t/recommended-production-hardware/52783 "2019-02-04T08:59:27Z")

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Hello, What is the the recommended production hardware for (Wowza VOD) server which could handle about 100,000 user Does VOD support Wowza Load Balancer (Clustring,Failover) ?

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## [Transcoding with GPU usages 100% cpu](https://community.wowza.com/t/transcoding-with-gpu-usages-100-cpu/52784)

<div class="topic-metadata">

**Author:** [@serdal\_bozkurt](https://community.wowza.com/u/serdal_bozkurt)\
**Replies:** 0\
**Last updated:** [February 3, 2019, 3:36pm UTC](https://community.wowza.com/t/transcoding-with-gpu-usages-100-cpu/52784 "2019-02-03T15:36:16Z")

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Hi, need some help i have server running ubuntu 18.04 server edition with 1 nvidia quadro GPU and have created a new trancoding profile by copying one of the templates and changes few thing, etc GPU nvidia… But it looks…

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## [memoire of server Wowza](https://community.wowza.com/t/memoire-of-server-wowza/52781)

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**Author:** [@Simon\_Bolo](https://community.wowza.com/u/Simon_Bolo)\
**Replies:** 0\
**Last updated:** [February 3, 2019, 4:40am UTC](https://community.wowza.com/t/memoire-of-server-wowza/52781 "2019-02-03T04:40:59Z")

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Bonjour, j’ai la mémoire, mon serveur Wowza qui est à: Total: 62.94 Go, vidéos en les VOD, faire des arrêts dites-moi si cela est lié et comment résoudre ce problème, merci

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## [TTML captions with overlapped cues](https://community.wowza.com/t/ttml-captions-with-overlapped-cues/52776)

<div class="topic-metadata">

**Author:** [@Brian\_Laske1](https://community.wowza.com/u/Brian_Laske1)\
**Replies:** 0\
**Last updated:** [February 1, 2019, 11:33pm UTC](https://community.wowza.com/t/ttml-captions-with-overlapped-cues/52776 "2019-02-01T23:33:58Z")

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I am constructing VOD HLS streams out of S3 with captions. The captions are loaded from a TTML file and converted to WebVTT format in the HLS stream. We are seeing a problem when the TTML contains captions with overlappi…

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## [Mpegts sub enabling?](https://community.wowza.com/t/mpegts-sub-enabling/52742)

<div class="topic-metadata">

**Author:** [@serdal\_bozkurt](https://community.wowza.com/u/serdal_bozkurt)\
**Replies:** 2\
**Last updated:** [February 1, 2019, 6:18pm UTC](https://community.wowza.com/t/mpegts-sub-enabling/52742 "2019-02-01T18:18:54Z")

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Hi, i have some mpegts streams in http format that have multiply audio and sub tracks, how do i force wowza to only use 1 of each ? so that theres only 1 audio and sub track, and is it possible to “force” the sub to allo…

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## [play the video stream real time on the browser on computer installed server on it](https://community.wowza.com/t/play-the-video-stream-real-time-on-the-browser-on-computer-installed-server-on-it/52775)

<div class="topic-metadata">

**Author:** [@Belal\_Saleh\_Hasan](https://community.wowza.com/u/Belal_Saleh_Hasan)\
**Replies:** 1\
**Last updated:** [January 31, 2019, 7:47pm UTC](https://community.wowza.com/t/play-the-video-stream-real-time-on-the-browser-on-computer-installed-server-on-it/52775 "2019-01-31T19:47:10Z")

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I prepare geocoder app configuration and wowza stream engine configuration to receive the video stream of geocoder app on private network but when I want to play the video stream on the same computer (install engine serv…

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## [Super high cpu usage](https://community.wowza.com/t/super-high-cpu-usage/52771)

<div class="topic-metadata">

**Author:** [@Abdalrahman\_Ayyad](https://community.wowza.com/u/Abdalrahman_Ayyad)\
**Replies:** 1\
**Last updated:** [January 31, 2019, 3:16pm UTC](https://community.wowza.com/t/super-high-cpu-usage/52771 "2019-01-31T15:16:57Z")

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I have AWS instance of type m5a.xlarge 2 core / 4 threads AMD EPYC 16 RAM and I am streaming 1 input resolution: 1280 \* 720 (HD) bit rate: ABR 1.5 Mbps fps:30 codec: x264 and 3 transcoding 3 outputs output 1: 1…

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## [How to add download button?](https://community.wowza.com/t/how-to-add-download-button/52769)

<div class="topic-metadata">

**Author:** [@Rachel\_Chen1](https://community.wowza.com/u/Rachel_Chen1)\
**Replies:** 1\
**Last updated:** [January 31, 2019, 9:20am UTC](https://community.wowza.com/t/how-to-add-download-button/52769 "2019-01-31T09:20:02Z")

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I want to add a download button to save the vod from jwplayer. Now my code likes this: '\<div id="'+ val.vid +'"\>' + '\</div\>' + '\<script\>' + 'var player = jwplayer(\\''+ val.vid +'\\');' + 'jwplayer("'+ val.vid +'").setup(…

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## [Record stream ready time](https://community.wowza.com/t/record-stream-ready-time/52757)

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**Author:** [@YenNan\_Liy](https://community.wowza.com/u/YenNan_Liy)\
**Replies:** 2\
**Last updated:** [January 31, 2019, 5:15am UTC](https://community.wowza.com/t/record-stream-ready-time/52757 "2019-01-31T05:15:59Z")

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I have a question about recording stream. When I connect a stream file, and check it has Input Byte. Then, I click record stream. sometime, the Input Byte will Gradually lower to 0.000Kbits/s. After some minutes, Input…

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## [Wowza SSL issue](https://community.wowza.com/t/wowza-ssl-issue/50737)

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**Author:** [@Josh\_Sawyer](https://community.wowza.com/u/Josh_Sawyer)\
**Replies:** 1\
**Last updated:** [January 30, 2019, 9:52pm UTC](https://community.wowza.com/t/wowza-ssl-issue/50737 "2019-01-30T21:52:37Z")

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We have enabled ssl on our wowza host for our HLS streams and have noticed that all videos now buffer. Looking at the request it appears the server takes 22 seconds to download the first chunk and then its fine for the n…

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## [Apple announced fMP4 support some times ago so do you have any ETA for this feature support ?](https://community.wowza.com/t/apple-announced-fmp4-support-some-times-ago-so-do-you-have-any-eta-for-this-feature-support/49461)

<div class="topic-metadata">

**Author:** [@Alex\_Pokotilo](https://community.wowza.com/u/Alex_Pokotilo)\
**Replies:** 6\
**Last updated:** [January 30, 2019, 9:49pm UTC](https://community.wowza.com/t/apple-announced-fmp4-support-some-times-ago-so-do-you-have-any-eta-for-this-feature-support/49461 "2019-01-30T21:49:26Z")

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Apple announced fMP4 support some times ago so do you have any ETA for this feature support ?

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## [Streamed HLS has wrong primary\_pic\_type of AUD.](https://community.wowza.com/t/streamed-hls-has-wrong-primary-pic-type-of-aud/52707)

<div class="topic-metadata">

**Author:** [@Tsuyoshi\_Hatta1](https://community.wowza.com/u/Tsuyoshi_Hatta1)\
**Replies:** 1\
**Last updated:** [January 30, 2019, 1:04am UTC](https://community.wowza.com/t/streamed-hls-has-wrong-primary-pic-type-of-aud/52707 "2019-01-30T01:04:10Z")

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Hello, We stream HLS from mp4 file which has h.264 movie and AAC audio by using Wowza Streaming Engine 4.7.6. It seems that streamed mpeg-ts has wrong primary\_pic\_type of AUD. (source mp4 file does not have AUD) Acco…

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## [i want to watch my all dvr cameras through rtsp server at a time in video player .  i can access one by one my dvr camera on video player through rtsp but not getting all cameras at a time in video player .  pls help](https://community.wowza.com/t/i-want-to-watch-my-all-dvr-cameras-through-rtsp-server-at-a-time-in-video-player-i-can-access-one-by-one-my-dvr-camera-on-video-player-through-rtsp-but-not-getting-all-cameras-at-a-time-in-video-player-pls-help/52759)

<div class="topic-metadata">

**Author:** [@shailendra\_singh1](https://community.wowza.com/u/shailendra_singh1)\
**Replies:** 1\
**Last updated:** [January 29, 2019, 7:11pm UTC](https://community.wowza.com/t/i-want-to-watch-my-all-dvr-cameras-through-rtsp-server-at-a-time-in-video-player-i-can-access-one-by-one-my-dvr-camera-on-video-player-through-rtsp-but-not-getting-all-cameras-at-a-time-in-video-player-pls-help/52759 "2019-01-29T19:11:22Z")

</div>

Missing title. Missing body.

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## [Network Input and CPU Load Issue - URGENT](https://community.wowza.com/t/network-input-and-cpu-load-issue-urgent/52751)

<div class="topic-metadata">

**Author:** [@Santiago\_Rollheiser](https://community.wowza.com/u/Santiago_Rollheiser)\
**Replies:** 4\
**Last updated:** [January 29, 2019, 6:45pm UTC](https://community.wowza.com/t/network-input-and-cpu-load-issue-urgent/52751 "2019-01-29T18:45:40Z")

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Hi guys, i have the last version with a perpetual license and have problems with a few things: 1- I have 30 Channels over MPEG-TS (TCP/IP), i use the stream file to get the video signal. But when see the Input traffic o…

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## [4.7.5 to 4.7.7 upgrade breaks Akamai PushPublish behaviour](https://community.wowza.com/t/4-7-5-to-4-7-7-upgrade-breaks-akamai-pushpublish-behaviour/52684)

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**Author:** [@Joe\_Bray](https://community.wowza.com/u/Joe_Bray)\
**Replies:** 5\
**Last updated:** [January 29, 2019, 9:27am UTC](https://community.wowza.com/t/4-7-5-to-4-7-7-upgrade-breaks-akamai-pushpublish-behaviour/52684 "2019-01-29T09:27:35Z")

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We recently upgraded to 4.7.7 and the move broke some of the logic of the Stream Target (pushpublish) behaviour, such that making API driven changes to the pushpublish map causes different undesirable change. Previously…

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## [Using VP9 ON VOD](https://community.wowza.com/t/using-vp9-on-vod/52752)

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**Author:** [@Layal\_Badawi](https://community.wowza.com/u/Layal_Badawi)\
**Replies:** 1\
**Last updated:** [January 28, 2019, 6:53pm UTC](https://community.wowza.com/t/using-vp9-on-vod/52752 "2019-01-28T18:53:28Z")

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dear sir 1- It’s Important to know if possibility to stream movies with VP9 Format file on VOD streaming, and if there a solution, please notify me how i can upgrade my account to use this option. 2- Is there any tutor…

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## [Video is unstable when TCP connection with webRTC](https://community.wowza.com/t/video-is-unstable-when-tcp-connection-with-webrtc/48205)

<div class="topic-metadata">

**Author:** [@aaa\_aaa](https://community.wowza.com/u/aaa_aaa)\
**Replies:** 5\
**Last updated:** [January 28, 2019, 5:00pm UTC](https://community.wowza.com/t/video-is-unstable-when-tcp-connection-with-webrtc/48205 "2019-01-28T17:00:29Z")

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I’d like to implement video chat with TCP connection at wowza’s WebRTC now, The picture stops and it gets stuck. Could you tell me if there is any workaround? Chrome uses version 56.0.2924.87, and firefox uses version 51…

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## [hardware requirement for 1000 live stream ?](https://community.wowza.com/t/hardware-requirement-for-1000-live-stream/52710)

<div class="topic-metadata">

**Author:** [@Abdalrahman\_Ayyad](https://community.wowza.com/u/Abdalrahman_Ayyad)\
**Replies:** 5\
**Last updated:** [January 26, 2019, 12:14pm UTC](https://community.wowza.com/t/hardware-requirement-for-1000-live-stream/52710 "2019-01-26T12:14:44Z")

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Currently I am doing a research for building live video stream platform on AWS EC2 instances and I need to know what is the best instances type for Wowza and how many instances do I need for 1000 live stream concurrentl…

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## [Styling in closed caption vod smil?](https://community.wowza.com/t/styling-in-closed-caption-vod-smil/52741)

<div class="topic-metadata">

**Author:** [@Ankit\_Gaur](https://community.wowza.com/u/Ankit_Gaur)\
**Replies:** 6\
**Last updated:** [January 25, 2019, 6:59pm UTC](https://community.wowza.com/t/styling-in-closed-caption-vod-smil/52741 "2019-01-25T18:59:12Z")

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We are providing the subtitles in HLS stream via TTML files and are using SMIL’s to create M3U8’s. Subtitles work fine but how to enable styling in those captions? We found some articles on how to put styling in TTML fi…

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## [Wowza TTML SMIL ttmlMaxFileLength error](https://community.wowza.com/t/wowza-ttml-smil-ttmlmaxfilelength-error/52750)

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**Author:** [@Ankit\_Gaur](https://community.wowza.com/u/Ankit_Gaur)\
**Replies:** 0\
**Last updated:** [January 25, 2019, 4:34pm UTC](https://community.wowza.com/t/wowza-ttml-smil-ttmlmaxfilelength-error/52750 "2019-01-25T16:34:45Z")

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We are providing the subtitles in HLS stream via TTML files and are using SMIL’s to create M3U8’s. Subtitles work fine but or some videos captions do not appear. we have used this article: https://www.wowza.com/docs/ho…

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## [MPEG DASH Module class not found](https://community.wowza.com/t/mpeg-dash-module-class-not-found/52732)

<div class="topic-metadata">

**Author:** [@sd\_gds](https://community.wowza.com/u/sd_gds)\
**Replies:** 1\
**Last updated:** [January 24, 2019, 11:04pm UTC](https://community.wowza.com/t/mpeg-dash-module-class-not-found/52732 "2019-01-24T23:04:21Z")

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Install the wowza IDE (form https://www.wowza.com/wowzaide4/) The have some event module like onAppStart,onHTTPSessionCreate… But,not found OnHTTPMPEGDashStreamingSession in the default module

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## [RTSP And UDP From Camera Convert To RTMP With Adaptive Bitrate And Multi Frame Bitrate](https://community.wowza.com/t/rtsp-and-udp-from-camera-convert-to-rtmp-with-adaptive-bitrate-and-multi-frame-bitrate/52729)

<div class="topic-metadata">

**Author:** [@Jeff\_Lau](https://community.wowza.com/u/Jeff_Lau)\
**Replies:** 1\
**Last updated:** [January 24, 2019, 10:18pm UTC](https://community.wowza.com/t/rtsp-and-udp-from-camera-convert-to-rtmp-with-adaptive-bitrate-and-multi-frame-bitrate/52729 "2019-01-24T22:18:57Z")

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untitled.png Sir, I come across on the attached diagram before I proposed to management to apply wowza cloud solution, is that the wowza cloud can take place wowza streaming engine in the diagram. Or is that I a must s…

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## [How to generate Secure Token For CDN Stream Target](https://community.wowza.com/t/how-to-generate-secure-token-for-cdn-stream-target/49544)

<div class="topic-metadata">

**Author:** [@Amit\_Mittal1](https://community.wowza.com/u/Amit_Mittal1)\
**Replies:** 6\
**Last updated:** [January 24, 2019, 5:08pm UTC](https://community.wowza.com/t/how-to-generate-secure-token-for-cdn-stream-target/49544 "2019-01-24T17:08:58Z")

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Hello, I am using latest version of Wowza Streaming engine with Wowza CDN. I have been trying to generate Secure token by following your guide at https://www.wowza.com/docs/how-to-protect-a-wowza-cdn-stream-target-wit…

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## [WebRTC not showing up as incoming stream](https://community.wowza.com/t/webrtc-not-showing-up-as-incoming-stream/52713)

<div class="topic-metadata">

**Author:** [@Helga\_Husmann](https://community.wowza.com/u/Helga_Husmann)\
**Replies:** 1\
**Last updated:** [January 23, 2019, 7:53pm UTC](https://community.wowza.com/t/webrtc-not-showing-up-as-incoming-stream/52713 "2019-01-23T19:53:16Z")

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Hi, I do have an issue with a client, who tries to send a webrtc input stream through out web application, current chrome. I do have a console, which does not show any issues, also the Wowza logs do not show anything wh…

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## [Is it possible to have a player to choose between landscape and/or portrait oriented streams based on device/screen orientation?](https://community.wowza.com/t/is-it-possible-to-have-a-player-to-choose-between-landscape-and-or-portrait-oriented-streams-based-on-device-screen-orientation/52700)

<div class="topic-metadata">

**Author:** [@Mario\_Kusnjer](https://community.wowza.com/u/Mario_Kusnjer)\
**Replies:** 1\
**Last updated:** [January 21, 2019, 7:58pm UTC](https://community.wowza.com/t/is-it-possible-to-have-a-player-to-choose-between-landscape-and-or-portrait-oriented-streams-based-on-device-screen-orientation/52700 "2019-01-21T19:58:40Z")

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Basically, I have two streams, one in landscape aspect ration and another in portrait aspect ration. Is it possible to combine them in one stream where HTML5 player on device will automatically choose correct stream base…

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## [webrtc trancoder](https://community.wowza.com/t/webrtc-trancoder/52649)

<div class="topic-metadata">

**Author:** [@HOU\_O\_YOUNG](https://community.wowza.com/u/HOU_O_YOUNG)\
**Replies:** 1\
**Last updated:** [January 21, 2019, 6:08pm UTC](https://community.wowza.com/t/webrtc-trancoder/52649 "2019-01-21T18:08:27Z")

</div>

We transcoded to webrtc. If not, a 1 second delay will occur. Why is that?

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## [How to deploy multi tiered solution](https://community.wowza.com/t/how-to-deploy-multi-tiered-solution/52683)

<div class="topic-metadata">

**Author:** [@Mohammad\_Mahefooz](https://community.wowza.com/u/Mohammad_Mahefooz)\
**Replies:** 2\
**Last updated:** [January 21, 2019, 12:50pm UTC](https://community.wowza.com/t/how-to-deploy-multi-tiered-solution/52683 "2019-01-21T12:50:38Z")

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We are planning to setup an IPTV headend using Wowza components. Our proposed setup is that - Live TV (Multicast) -\> Wowza/Third party Transacoder -\> Wowza Central Streaming Engine -\> (Multicast) -\> Wowza Edge Streaming …

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## [What is the expected latency in seconds with wowza cloud andwowza cdn services?](https://community.wowza.com/t/what-is-the-expected-latency-in-seconds-with-wowza-cloud-andwowza-cdn-services/51086)

<div class="topic-metadata">

**Author:** [@Mosaad\_Ahmed1](https://community.wowza.com/u/Mosaad_Ahmed1)\
**Replies:** 1\
**Last updated:** [January 21, 2019, 2:13am UTC](https://community.wowza.com/t/what-is-the-expected-latency-in-seconds-with-wowza-cloud-andwowza-cdn-services/51086 "2019-01-21T02:13:56Z")

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If i used Wowza engine or Wowza cloud and Wowza CDN for HLS live streaming. what is the expected average for latency for the stream in seconds please?

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## [Unable to broadcast stream in facebook group and page](https://community.wowza.com/t/unable-to-broadcast-stream-in-facebook-group-and-page/51133)

<div class="topic-metadata">

**Author:** [@ajit\_soman](https://community.wowza.com/u/ajit_soman)\
**Replies:** 6\
**Last updated:** [January 20, 2019, 4:09pm UTC](https://community.wowza.com/t/unable-to-broadcast-stream-in-facebook-group-and-page/51133 "2019-01-20T16:09:53Z")

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I am facing issue in broadcasting stream to facebook group and page. I am getting these error logs: ERROR server comment 2018-04-13 15:37:28 - - - - - 21414.929 - - - - - -- - PushPublishFacebookUtil.makeRequest: Reques…

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## [Does wowza support fragmented mp4?](https://community.wowza.com/t/does-wowza-support-fragmented-mp4/51459)

<div class="topic-metadata">

**Author:** [@noriaki\_hangyo1](https://community.wowza.com/u/noriaki_hangyo1)\
**Replies:** 1\
**Last updated:** [January 19, 2019, 9:57am UTC](https://community.wowza.com/t/does-wowza-support-fragmented-mp4/51459 "2019-01-19T09:57:51Z")

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I want to use framented mp4 with hls. Does wowza support fragmented mp4?

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