# Wowza Streaming Engine

**URL:** https://community.wowza.com/c/wowza-streaming-engine/8.md?page=201

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**Page:** 202

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## [HDS/HLS and Stream Switching Interruption](https://community.wowza.com/t/hds-hls-and-stream-switching-interruption/36223)

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**Author:** [@Eddie\_Hermoso](https://community.wowza.com/u/Eddie_Hermoso)\
**Replies:** 4\
**Last updated:** [February 3, 2015, 3:42pm UTC](https://community.wowza.com/t/hds-hls-and-stream-switching-interruption/36223 "2015-02-03T15:42:57Z")

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I successfully implemented a stream switching module using this as a baseline example: https://www.wowza.com/docs/how-to-switch-streams-using-stream-class-streams I noticed that when switching between multiple live and …

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## [Using Wowza DRM AddOn with another DRM provider](https://community.wowza.com/t/using-wowza-drm-addon-with-another-drm-provider/41465)

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**Author:** [@Vladimir\_Lelikov](https://community.wowza.com/u/Vladimir_Lelikov)\
**Replies:** 3\
**Last updated:** [February 3, 2015, 3:28pm UTC](https://community.wowza.com/t/using-wowza-drm-addon-with-another-drm-provider/41465 "2015-02-03T15:28:40Z")

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Hi! Our customer have bought perpetual license and want to have streams distributed using DRM for HLS. But they use another DRM provider - NAGRA. So the question is: is it somehow possible to extend Wowza DRM AddOn to …

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## [Hls playback](https://community.wowza.com/t/hls-playback/42084)

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**Author:** [@kenji\_magto](https://community.wowza.com/u/kenji_magto)\
**Replies:** 5\
**Last updated:** [February 3, 2015, 1:00pm UTC](https://community.wowza.com/t/hls-playback/42084 "2015-02-03T13:00:24Z")

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Hello Wowza, Im currently dealing with mobile playback on live stream, i’ve got it working before but when i came back and check i have problem with dealing with it now, usually before when i got to this sample URL : h…

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## [Creating an audio archive - 5 hour max playback, 2 week retention](https://community.wowza.com/t/creating-an-audio-archive-5-hour-max-playback-2-week-retention/44648)

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**Author:** [@Dave\_Conder](https://community.wowza.com/u/Dave_Conder)\
**Replies:** 2\
**Last updated:** [February 3, 2015, 12:29pm UTC](https://community.wowza.com/t/creating-an-audio-archive-5-hour-max-playback-2-week-retention/44648 "2015-02-03T12:29:57Z")

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Hello, we’re looking at a situation where we need to record incoming audio streams and offer the ability to play them back for up to 2 weeks. We also need to limit any particular playlist to a 5 hour max play time, and h…

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## [How to setup server for 10k viewer in the same time?](https://community.wowza.com/t/how-to-setup-server-for-10k-viewer-in-the-same-time/44645)

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**Author:** [@Hoang\_Hieu](https://community.wowza.com/u/Hoang_Hieu)\
**Replies:** 2\
**Last updated:** [February 3, 2015, 9:16am UTC](https://community.wowza.com/t/how-to-setup-server-for-10k-viewer-in-the-same-time/44645 "2015-02-03T09:16:30Z")

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I have a plan to build up 1 website like twitch.tv . User can create channel and broadcast through RMTP, estimate CCU (all channel) is 10k. And their videos will be storage in 7 days. So, How many servers need for thi…

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## [Very high Wowza heap and memory usage](https://community.wowza.com/t/very-high-wowza-heap-and-memory-usage/36559)

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**Author:** [@Ars\_M](https://community.wowza.com/u/Ars_M)\
**Replies:** 1\
**Last updated:** [February 3, 2015, 8:41am UTC](https://community.wowza.com/t/very-high-wowza-heap-and-memory-usage/36559 "2015-02-03T08:41:29Z")

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We have trouble with very high Wowza heap and memory usage Server configuration 24GB RAM, Intel Xeon CPU E5-2640 16 cores Now on server only 10 streams. nDVR recording is enabled Now we have about 22GB Ram and 7.2Gb j…

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## [How can we add CEA-608 captions at the time of transcoding](https://community.wowza.com/t/how-can-we-add-cea-608-captions-at-the-time-of-transcoding/41576)

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**Author:** [@Adam\_Kazi](https://community.wowza.com/u/Adam_Kazi)\
**Replies:** 8\
**Last updated:** [February 2, 2015, 5:09pm UTC](https://community.wowza.com/t/how-can-we-add-cea-608-captions-at-the-time-of-transcoding/41576 "2015-02-02T17:09:39Z")

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Hello, i would like to inject CEA-608 captions at the time of transcoding . Also i would like to know how can i retrieve CEA-608 captions on iOS devices.

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## [Upload images to the content dir of a wowza EC2 server](https://community.wowza.com/t/upload-images-to-the-content-dir-of-a-wowza-ec2-server/33534)

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**Author:** [@Lars-Goran\_Borjesson](https://community.wowza.com/u/Lars-Goran_Borjesson)\
**Replies:** 5\
**Last updated:** [February 2, 2015, 5:09pm UTC](https://community.wowza.com/t/upload-images-to-the-content-dir-of-a-wowza-ec2-server/33534 "2015-02-02T17:09:30Z")

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Trying to load images to the content directory of our EC2 wowza server…is it not possible to upload to the content directory in a similiar as we can upload to a S3 bucket? We would like to have images in a similiar way …

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## [Cant upload and create file in the content directory?](https://community.wowza.com/t/cant-upload-and-create-file-in-the-content-directory/33538)

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**Author:** [@Lars-Goran\_Borjesson](https://community.wowza.com/u/Lars-Goran_Borjesson)\
**Replies:** 1\
**Last updated:** [February 2, 2015, 5:08pm UTC](https://community.wowza.com/t/cant-upload-and-create-file-in-the-content-directory/33538 "2015-02-02T17:08:33Z")

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Trying to upload and create png files in the EC2 Wowza server using FTP… Can download and view content but cant create? I am logged in being Wowza admin and currently using a instance-ID, what is wrong?

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## [How to merge video with subtitle in realtime play](https://community.wowza.com/t/how-to-merge-video-with-subtitle-in-realtime-play/44556)

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**Author:** [@Trong\_Tran](https://community.wowza.com/u/Trong_Tran)\
**Replies:** 5\
**Last updated:** [February 2, 2015, 4:55pm UTC](https://community.wowza.com/t/how-to-merge-video-with-subtitle-in-realtime-play/44556 "2015-02-02T16:55:21Z")

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I am very new with Wowza and want to ask is it posible if i can config Wowza(or some plugins) to merge source video and subtitle to stream direct to users(instead of using separate sub file)? I am asking that because i …

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## [wowza push publish to CDN with dvr](https://community.wowza.com/t/wowza-push-publish-to-cdn-with-dvr/42150)

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**Author:** [@tariq\_inam](https://community.wowza.com/u/tariq_inam)\
**Replies:** 1\
**Last updated:** [February 2, 2015, 4:34pm UTC](https://community.wowza.com/t/wowza-push-publish-to-cdn-with-dvr/42150 "2015-02-02T16:34:27Z")

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Hi, I am trying to achieve following, let me know if its even possible. I have a live stream coming in to wowza. and I need to use push publish to push it to akamai network for delivery after an hour. So I am wonderin…

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## [onBeforeScaleFrame and frame rate](https://community.wowza.com/t/onbeforescaleframe-and-frame-rate/42725)

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**Author:** [@system](https://community.wowza.com/u/system)\
**Replies:** 2\
**Last updated:** [February 1, 2015, 5:55pm UTC](https://community.wowza.com/t/onbeforescaleframe-and-frame-rate/42725 "2015-02-01T17:55:05Z")

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Hi, I am developing a dynamic overlaying module and actually I don’t understand what is the relation between the invocation frequency of “onBeforeScaleFrame” and the frame rate of my incoming stream to be transcoded. Th…

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## [Wowza Thread Pool capping](https://community.wowza.com/t/wowza-thread-pool-capping/42726)

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**Author:** [@system](https://community.wowza.com/u/system)\
**Replies:** 0\
**Last updated:** [January 31, 2015, 8:21pm UTC](https://community.wowza.com/t/wowza-thread-pool-capping/42726 "2015-01-31T20:21:46Z")

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Hi, I am monitoring a live event hosted on a single Wowza Streaming Engine. We are monitoring the JVM parameters, and seeing that as the connection counts rose slowly to around 2300, the thread pool count capped at 875.…

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## [Load test tool:  Why is the client setup so involved?](https://community.wowza.com/t/load-test-tool-why-is-the-client-setup-so-involved/35723)

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**Author:** [@Hobbes\_Pirakitti](https://community.wowza.com/u/Hobbes_Pirakitti)\
**Replies:** 1\
**Last updated:** [January 30, 2015, 10:29pm UTC](https://community.wowza.com/t/load-test-tool-why-is-the-client-setup-so-involved/35723 "2015-01-30T22:29:10Z")

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The load test documentation specifies that Wowza needs to be installed and tuned on the client machine. This doesn’t make sense to me. Why does the entire application need to be installed on a client, and why does the c…

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## [Audio problem on iOS and Windowphone device](https://community.wowza.com/t/audio-problem-on-ios-and-windowphone-device/44625)

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**Author:** [@Quang\_Huy\_Tran](https://community.wowza.com/u/Quang_Huy_Tran)\
**Replies:** 4\
**Last updated:** [January 30, 2015, 5:27pm UTC](https://community.wowza.com/t/audio-problem-on-ios-and-windowphone-device/44625 "2015-01-30T17:27:06Z")

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Dear Wowza-Team, I am transcoding a live MPEG-TS stream (Video: H264, main profile; Audio: mp2, 48kHz, stereo) into the profile: live.tv.stream {name:“360p”, bitrate:512000, codec:H264, profile:Baseline, level:3.0, fra…

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## [Calling Wowza WSDL from .NET Application](https://community.wowza.com/t/calling-wowza-wsdl-from-net-application/44567)

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**Author:** [@shrinivas\_shastri](https://community.wowza.com/u/shrinivas_shastri)\
**Replies:** 1\
**Last updated:** [January 30, 2015, 9:53am UTC](https://community.wowza.com/t/calling-wowza-wsdl-from-net-application/44567 "2015-01-30T09:53:26Z")

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Hi, We are using Wowza 4.1.0 on Windows 2008 R2 Standard with Java JDK 8.x. Aim: To issue commands from .NET application to Wowza to start/stop a stream file(kind of blocking live video to public). I went through your…

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## [New server - 25X 15K SAS - Best RAID configuration?](https://community.wowza.com/t/new-server-25x-15k-sas-best-raid-configuration/34934)

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**Author:** [@Alan\_Halls](https://community.wowza.com/u/Alan_Halls)\
**Replies:** 7\
**Last updated:** [January 29, 2015, 10:52pm UTC](https://community.wowza.com/t/new-server-25x-15k-sas-best-raid-configuration/34934 "2015-01-29T22:52:07Z")

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I just picked up an HP DL180 G6 like this ( http://r.ebay.com/lHyBzS) but have the 3.06GZ 12MB L3 cache and 96GB RAM. I am trying to figure out the best way to configure my RAID for reliability of the OS, but also to max…

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## [ModulePushPublish breaks applications](https://community.wowza.com/t/modulepushpublish-breaks-applications/36994)

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**Author:** [@Matthew\_Wall](https://community.wowza.com/u/Matthew_Wall)\
**Replies:** 1\
**Last updated:** [January 29, 2015, 10:48pm UTC](https://community.wowza.com/t/modulepushpublish-breaks-applications/36994 "2015-01-29T22:48:19Z")

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Hello, Having an issue with Wowza 4,1,1 and the ModulePushPublish. Whether adding it via the Application.xml directly or through the Streaming Engine Manager it causes all publishing attempts to fail. Any ideas? Never…

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## [Smooth Streaming & Windows Phone 20sec. lag](https://community.wowza.com/t/smooth-streaming-windows-phone-20sec-lag/44638)

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**Author:** [@Micha\_322\_Rabi\_324\_s](https://community.wowza.com/u/Micha_322_Rabi_324_s)\
**Replies:** 1\
**Last updated:** [January 29, 2015, 10:43pm UTC](https://community.wowza.com/t/smooth-streaming-windows-phone-20sec-lag/44638 "2015-01-29T22:43:40Z")

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Hello There. I’m developing live streaming application on Android, IPhone and Windows Phone. For Android and Iphone I’ve 5 sec. delay which is ok for now ( RTSP and HLS ). But for Windows Phone app ( Smooth Streaming …

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## [PushPublishRTP  and setBufferTime](https://community.wowza.com/t/pushpublishrtp-and-setbuffertime/44640)

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**Author:** [@J\_Guy](https://community.wowza.com/u/J_Guy)\
**Replies:** 2\
**Last updated:** [January 29, 2015, 9:05pm UTC](https://community.wowza.com/t/pushpublishrtp-and-setbuffertime/44640 "2015-01-29T21:05:59Z")

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Hi I’d like to add some latency for a multicast (MPEG2-TS) stream. I tried to call setBufferTime on the corresponding IMediaStream, but no luck. Any suggestions? Thanks Guy.

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## [AAC audio distorted on iOS](https://community.wowza.com/t/aac-audio-distorted-on-ios/36619)

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**Author:** [@Norberts\_Ositis](https://community.wowza.com/u/Norberts_Ositis)\
**Replies:** 2\
**Last updated:** [January 29, 2015, 3:01pm UTC](https://community.wowza.com/t/aac-audio-distorted-on-ios/36619 "2015-01-29T15:01:53Z")

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Hello! I am transcoding the stream into three profiles. High profile has audio passthrough but the rest two have 96k and 56k respectively. When I play the stream on iOS devices (iPad1, iPhone 4S and 5) the sound is he…

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## [Wowza 2.2.3 stream manager](https://community.wowza.com/t/wowza-2-2-3-stream-manager/44634)

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**Author:** [@belimbor\_beimbora](https://community.wowza.com/u/belimbor_beimbora)\
**Replies:** 1\
**Last updated:** [January 29, 2015, 1:29pm UTC](https://community.wowza.com/t/wowza-2-2-3-stream-manager/44634 "2015-01-29T13:29:44Z")

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Dear Wowza, I recently installed wowza 2.2.3 on my server, when I access http://my.ip:8086/streammanager and log in with admin password, it shows only logo can you help me? thanks

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## [AC3 audio hiccups/interruption at the start of every chunk](https://community.wowza.com/t/ac3-audio-hiccups-interruption-at-the-start-of-every-chunk/33617)

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**Author:** [@Karel\_Boek](https://community.wowza.com/u/Karel_Boek)\
**Replies:** 1\
**Last updated:** [January 29, 2015, 7:55am UTC](https://community.wowza.com/t/ac3-audio-hiccups-interruption-at-the-start-of-every-chunk/33617 "2015-01-29T07:55:18Z")

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We’ve got some VOD content encoded with h.264 and AC3, and it plays over HLS through Wowza. However, the audio has a tiny hiccup at the start of every chunk. It’s noticeable enough to be annoying, the audio just stops fo…

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## [Transcoder Addon introducing latency more than 30 sec.](https://community.wowza.com/t/transcoder-addon-introducing-latency-more-than-30-sec/44427)

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**Author:** [@Sagar\_Kharat](https://community.wowza.com/u/Sagar_Kharat)\
**Replies:** 1\
**Last updated:** [January 28, 2015, 11:57pm UTC](https://community.wowza.com/t/transcoder-addon-introducing-latency-more-than-30-sec/44427 "2015-01-28T23:57:52Z")

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Hi all I am publishing stream(H264 + Nelleymoser)(800 \* 600) from flash code to wowza server(4.1.1). I am using ffmpeg to covert Nelleymoser to AAC conversion and downgrade video resolution to 360p video. This process…

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## [Recording to MP4 container](https://community.wowza.com/t/recording-to-mp4-container/485)

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**Author:** [@system](https://community.wowza.com/u/system)\
**Replies:** 5\
**Last updated:** [January 28, 2015, 11:22pm UTC](https://community.wowza.com/t/recording-to-mp4-container/485 "2015-01-28T23:22:02Z")

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I tried recording a live stream directly from flash applet camera and microphone to MP4 container, it did recorded the video but even JWPlayer, VLC and Quicktime player was unable to playback the mp4 video, I see this in…

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## [liverepeater-edge/liverepeater-edge-lowlatency internal 4 seconds latency?](https://community.wowza.com/t/liverepeater-edge-liverepeater-edge-lowlatency-internal-4-seconds-latency/36977)

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**Author:** [@Ben\_Davenport](https://community.wowza.com/u/Ben_Davenport)\
**Replies:** 3\
**Last updated:** [January 28, 2015, 5:14pm UTC](https://community.wowza.com/t/liverepeater-edge-liverepeater-edge-lowlatency-internal-4-seconds-latency/36977 "2015-01-28T17:14:20Z")

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Hey all!! Trying to widdle down latency between servers in an origin edge configuration and wondering if there’s anything we can do there. It seems that if we use either liverepeater-edge or liverepeater-edge-lowlatency…

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## [Streaming Engine Manager Not Showing Defined Applications](https://community.wowza.com/t/streaming-engine-manager-not-showing-defined-applications/36993)

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**Author:** [@Matthew\_Wall](https://community.wowza.com/u/Matthew_Wall)\
**Replies:** 2\
**Last updated:** [January 28, 2015, 3:48pm UTC](https://community.wowza.com/t/streaming-engine-manager-not-showing-defined-applications/36993 "2015-01-28T15:48:34Z")

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Hello, I’m having a problem on Windows Server 2012 R2 where the Streaming Engine Manager on Wowza 4,1,1 is not showing manually defined applications. Normally I don’t care but since I am virtually unable to setup the pu…

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## [multiple streams](https://community.wowza.com/t/multiple-streams/35463)

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**Author:** [@Dennis\_Loudermilk](https://community.wowza.com/u/Dennis_Loudermilk)\
**Replies:** 5\
**Last updated:** [January 28, 2015, 1:42pm UTC](https://community.wowza.com/t/multiple-streams/35463 "2015-01-28T13:42:57Z")

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I am running the latest wowza on windows. I have 8 live streams encoded with Niagra Viewcast and am sending them to the wowza server just fine. As I start each one i open the wowza and check the stream. Stream 1 2 and 3 …

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## [MKV Support in 4.1.1](https://community.wowza.com/t/mkv-support-in-4-1-1/44532)

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**Author:** [@Colm\_Aengus\_Murphy](https://community.wowza.com/u/Colm_Aengus_Murphy)\
**Replies:** 3\
**Last updated:** [January 28, 2015, 1:09pm UTC](https://community.wowza.com/t/mkv-support-in-4-1-1/44532 "2015-01-28T13:09:24Z")

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Hi folks, Has anyone managed to stream an mkv file with Wowza 4 ? There was a suggesting in an old thread to use the mp4 prefix but this didn’t work for me. The mkv file contains the following streams and plays fine in…

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## [How to add ontextData after transcoding](https://community.wowza.com/t/how-to-add-ontextdata-after-transcoding/41563)

<div class="topic-metadata">

**Author:** [@Adam\_Kazi](https://community.wowza.com/u/Adam_Kazi)\
**Replies:** 3\
**Last updated:** [January 28, 2015, 10:54am UTC](https://community.wowza.com/t/how-to-add-ontextdata-after-transcoding/41563 "2015-01-28T10:54:49Z")

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i want to inject meta data after transcoding is done. currently im adding ontextdata with transcoding . but client side i dnt see any data coming along with the stream

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