# \#transcoder **URL:** https://community.wowza.com/tag/transcoder/5.md [Latest](https://community.wowza.com/latest.md) · [Categories](https://community.wowza.com/categories.md) · [Tags](https://community.wowza.com/tags.md) --- ## [Constant Frame Rate](https://community.wowza.com/t/constant-frame-rate/102800)
**Author:** [@donghyun.kim](https://community.wowza.com/u/donghyun.kim)\ **Replies:** 3\ **Last updated:** [December 12, 2025, 6:11am UTC](https://community.wowza.com/t/constant-frame-rate/102800 "2025-12-12T06:11:07Z")
Hi. I’m using wowza streaming engine 4.9.6 and having problem to set frame rate 30 constantly. My client’s requirement is delivering video to end-user as 30fps constantly even if the input video source is 60fps. So I’v… --- ## [Support for AWS graviton processors?](https://community.wowza.com/t/support-for-aws-graviton-processors/91962)
**Author:** [@Jonathan\_Longman](https://community.wowza.com/u/Jonathan_Longman)\ **Replies:** 4\ **Last updated:** [November 3, 2025, 10:48pm UTC](https://community.wowza.com/t/support-for-aws-graviton-processors/91962 "2025-11-03T22:48:42Z")
Hey Wowza, wondering about whether we should expect WSE to work on AWS’s new ARM processors e.g. replace a c5 with a c6g processor? I note you have docs about installing on and using a Raspberry Pi, so I assume it wou… --- ## [Camera(UDP) \<- VLC is not Work](https://community.wowza.com/t/camera-udp-vlc-is-not-work/97436)
**Author:** [@hellomias](https://community.wowza.com/u/hellomias)\ **Replies:** 1\ **Last updated:** [September 12, 2025, 11:58am UTC](https://community.wowza.com/t/camera-udp-vlc-is-not-work/97436 "2025-09-12T11:58:30Z")
I Tried Camera(Server : UDP) \<- VLC I Made Stream and checked Active stream Byte In is 1.134mbps … but Byte Out is 0 i have logs MPEG2MPTS MPTS Transport has packets of interest with transport scrambling enabled. Desra… --- ## [Can't start MPEG4-to-H264 transcoding: videoDecoderDecodeDisplayWidth failed](https://community.wowza.com/t/cant-start-mpeg4-to-h264-transcoding-videodecoderdecodedisplaywidth-failed/93802)
**Author:** [@David\_Irwin1](https://community.wowza.com/u/David_Irwin1)\ **Replies:** 7\ **Last updated:** [July 23, 2025, 1:35pm UTC](https://community.wowza.com/t/cant-start-mpeg4-to-h264-transcoding-videodecoderdecodedisplaywidth-failed/93802 "2025-07-23T13:35:49Z")
I’ve got a transcoding problem with a particular brand of MPEG-4 encoders. In particular, I have several Optelecom (i.e. Siqura) C50e MPEG-4 encoders and whenever I try to transcode the incoming video to H.264 I see the … --- ## [Issues with keyframe interval insertion](https://community.wowza.com/t/issues-with-keyframe-interval-insertion/97216)
**Author:** [@Simon\_Koester](https://community.wowza.com/u/Simon_Koester)\ **Replies:** 6\ **Last updated:** [February 21, 2025, 9:52pm UTC](https://community.wowza.com/t/issues-with-keyframe-interval-insertion/97216 "2025-02-21T21:52:54Z")
Hello Wowza Community We’ve recently noticed a somewhat strange behaviour with our Streaming Engine. When we transcode a video stream (50fps) into 4 quality levels, we also adjust the keyframe interval to be 50 frames. … --- ## [Transcode multi-channel AAC (5.1) audio to separete stereo](https://community.wowza.com/t/transcode-multi-channel-aac-5-1-audio-to-separete-stereo/102483)
**Author:** [@kselltrum](https://community.wowza.com/u/kselltrum)\ **Replies:** 1\ **Last updated:** [January 19, 2025, 4:33pm UTC](https://community.wowza.com/t/transcode-multi-channel-aac-5-1-audio-to-separete-stereo/102483 "2025-01-19T16:33:16Z")
I have video stream with AAC sound with 3 lang audio tracks (UK, EN, DE). I want to transcode it to three dedecsted streams with stereo AAC audio (stream1 - video + audio track 1,2, stream2 - video + audio track 3,4 etc.… --- ## [I have a legacy LIVE U SOLO I use Cloud Service](https://community.wowza.com/t/i-have-a-legacy-live-u-solo-i-use-cloud-service/102305)
**Author:** [@Scott\_Montgomery](https://community.wowza.com/u/Scott_Montgomery)\ **Replies:** 1\ **Last updated:** [November 18, 2024, 4:18pm UTC](https://community.wowza.com/t/i-have-a-legacy-live-u-solo-i-use-cloud-service/102305 "2024-11-18T16:18:09Z")
Done 400 broadcast and clicked LIVEU and WOWZA stream cloud. Now LIVE U will not accept key pass code. says invalid. Called LIVE U and useless. The solo unit and wowza seem to be out of sync. let me know if anybody… --- ## [Webinar 11/12/2024 - Transcoding Flexibility & Cost Efficiency](https://community.wowza.com/t/webinar-11-12-2024-transcoding-flexibility-cost-efficiency/102286)
**Author:** [@MelissaGeise\_CM](https://community.wowza.com/u/MelissaGeise_CM)\ **Replies:** 0\ **Last updated:** [November 11, 2024, 4:50pm UTC](https://community.wowza.com/t/webinar-11-12-2024-transcoding-flexibility-cost-efficiency/102286 "2024-11-11T16:50:21Z")
Maximizing Transcoding Flexibility and Cost Efficiency on Tuesday, November 12th, 2024, from 10:00 – 10:30 AM MST. SAVE YOUR SPOT HERE If you’re looking to optimize your streaming workflow and cut costs without sacrif… --- ## [AV1 and VP9 support](https://community.wowza.com/t/av1-and-vp9-support/95276)
**Author:** [@Dhaval\_Rajput](https://community.wowza.com/u/Dhaval_Rajput)\ **Replies:** 5\ **Last updated:** [November 8, 2024, 2:26pm UTC](https://community.wowza.com/t/av1-and-vp9-support/95276 "2024-11-08T14:26:52Z")
Does wowza devices has AV1 and VP9 support ? and any apple device supports AV1 and VP9 Video codec stream ? Please let us know which are they --- ## [Transcoder pink/grey blocking](https://community.wowza.com/t/transcoder-pink-grey-blocking/97298)
**Author:** [@gsa](https://community.wowza.com/u/gsa)\ **Replies:** 4\ **Last updated:** [June 4, 2024, 11:24am UTC](https://community.wowza.com/t/transcoder-pink-grey-blocking/97298 "2024-06-04T11:24:30Z")
Hello, we have two servers, each with transcoders running. Both ingest a SRT stream from an adtec afiniti, and transcode these to 5 sub streams for ABR streaming. After variable hours of flawless streaming, I get a pin… --- ## [Live streaming using RTSP](https://community.wowza.com/t/live-streaming-using-rtsp/96984)
**Author:** [@f8f30a448afba3d33054](https://community.wowza.com/u/f8f30a448afba3d33054)\ **Replies:** 1\ **Last updated:** [March 15, 2024, 12:15pm UTC](https://community.wowza.com/t/live-streaming-using-rtsp/96984 "2024-03-15T12:15:34Z")
I created live stream and started live stream and transcoders. But I getting error “stream is offline” using below URL https://player.video.wowza.com/hosted/wrdg4h0c/player.html --- ## [How many concurrent live streams can I add on wowza video?](https://community.wowza.com/t/how-many-concurrent-live-streams-can-i-add-on-wowza-video/96436)
**Author:** [@ce784c9260a8905fc12a](https://community.wowza.com/u/ce784c9260a8905fc12a)\ **Replies:** 1\ **Last updated:** [August 30, 2023, 12:15pm UTC](https://community.wowza.com/t/how-many-concurrent-live-streams-can-i-add-on-wowza-video/96436 "2023-08-30T12:15:32Z")
I wanted to know I have 400 different live streaming cameras that I need to integrate, can I add 400 live streaming channels on wowza video? --- ## [Role tag for in MPEG DASH Manifest for Multi Audio transcoding](https://community.wowza.com/t/role-tag-for-in-mpeg-dash-manifest-for-multi-audio-transcoding/96337)
**Author:** [@Dhaval\_Rajput](https://community.wowza.com/u/Dhaval_Rajput)\ **Replies:** 0\ **Last updated:** [July 25, 2023, 7:17pm UTC](https://community.wowza.com/t/role-tag-for-in-mpeg-dash-manifest-for-multi-audio-transcoding/96337 "2023-07-25T19:17:09Z")
Does Wowza put the Role tag in the manifest ? for DASH Output ? This is an very important tag that must be present in the manifest,Does Wowza transcoder in VOD put this tag in the manifest for Multi-audio/multi-lingual … --- ## [Live stream is slow buffering on hosted page](https://community.wowza.com/t/live-stream-is-slow-buffering-on-hosted-page/96286)
**Author:** [@a8dc37c52bfe596ca5cb](https://community.wowza.com/u/a8dc37c52bfe596ca5cb)\ **Replies:** 1\ **Last updated:** [July 7, 2023, 9:59am UTC](https://community.wowza.com/t/live-stream-is-slow-buffering-on-hosted-page/96286 "2023-07-07T09:59:33Z")
video live stream is taking long time for loading on hosted page --- ## [Currently,there is an H.265 IP camera that is hosted on Wowza, but it cannot generate RTSP playback through Wowza](https://community.wowza.com/t/currently-there-is-an-h-265-ip-camera-that-is-hosted-on-wowza-but-it-cannot-generate-rtsp-playback-through-wowza/96105)
**Author:** [@Jacky\_Winnie](https://community.wowza.com/u/Jacky_Winnie)\ **Replies:** 1\ **Last updated:** [May 9, 2023, 1:03pm UTC](https://community.wowza.com/t/currently-there-is-an-h-265-ip-camera-that-is-hosted-on-wowza-but-it-cannot-generate-rtsp-playback-through-wowza/96105 "2023-05-09T13:03:55Z")
The following image shows the current camera source RTSP streaming protocol, which can be tested for playback using VLC without any issues. The camera has been hosted on Wowza, and the streaming is currently working … --- ## [Wowza - split file with multi-channel audio](https://community.wowza.com/t/wowza-split-file-with-multi-channel-audio/96061)
**Author:** [@kselltrum\_kselltrum](https://community.wowza.com/u/kselltrum_kselltrum)\ **Replies:** 0\ **Last updated:** [April 18, 2023, 1:37pm UTC](https://community.wowza.com/t/wowza-split-file-with-multi-channel-audio/96061 "2023-04-18T13:37:53Z")
I had a need to split a stream with multi-channel audio into several streams with 1 stereo track. The source stream comes as SRT and contains 4 stereo tracks (8 audio channels). It is necessary to transcode it into 4 s… --- ## [Wowza WebRTC: Delay in start up of stream from camera](https://community.wowza.com/t/wowza-webrtc-delay-in-start-up-of-stream-from-camera/95855)
**Author:** [@Shibi\_Chacko](https://community.wowza.com/u/Shibi_Chacko)\ **Replies:** 2\ **Last updated:** [March 7, 2023, 8:57pm UTC](https://community.wowza.com/t/wowza-webrtc-delay-in-start-up-of-stream-from-camera/95855 "2023-03-07T20:57:39Z")
Hi, While we try to load the stream on our webpage using WebRTC observed the initial delay(or loading time 3-4 secs on avg.) before playing the live stream. When we try as soon as after creating the stream file, it sa… --- ## [Auto start transcode to m3u8 url](https://community.wowza.com/t/auto-start-transcode-to-m3u8-url/95713)
**Author:** [@JordiTomas](https://community.wowza.com/u/JordiTomas)\ **Replies:** 3\ **Last updated:** [December 14, 2022, 6:35pm UTC](https://community.wowza.com/t/auto-start-transcode-to-m3u8-url/95713 "2022-12-14T18:35:52Z")
Hello, I dont know if it is possible, but I want to use WOWZA for my webpage to transcode in different qualities, its a webpage like a twitch, and I need to know if it’s possible: The streamer will get a rtmp url of t… --- ## [Wowza Logs - Publish / Unpublish](https://community.wowza.com/t/wowza-logs-publish-unpublish/95580)
**Author:** [@Harry\_Green](https://community.wowza.com/u/Harry_Green)\ **Replies:** 3\ **Last updated:** [November 10, 2022, 4:01pm UTC](https://community.wowza.com/t/wowza-logs-publish-unpublish/95580 "2022-11-10T16:01:02Z")
Hi All, We encountered an error during a stream which caused a disconnect between our encoder and Wowza . We’ve been trying to replicate the error with some success, however, there is something in the Wowza logs that wa… --- ## [Matroska MKV file support in 2022? how convert to aac and mp4 ondemand?](https://community.wowza.com/t/matroska-mkv-file-support-in-2022-how-convert-to-aac-and-mp4-ondemand/95368)
**Author:** [@Florida\_Stream](https://community.wowza.com/u/Florida_Stream)\ **Replies:** 2\ **Last updated:** [September 9, 2022, 8:40am UTC](https://community.wowza.com/t/matroska-mkv-file-support-in-2022-how-convert-to-aac-and-mp4-ondemand/95368 "2022-09-09T08:40:28Z")
Hello, many people have been wanting to support mkv in wowza for years, I would like to know if we can finally enjoy this benefit that would help many to avoid gambiarras in the development of their projects, or even mig… --- ## [LiveStream starts 2 minutes. How to speed up?](https://community.wowza.com/t/livestream-starts-2-minutes-how-to-speed-up/95148)
**Author:** [@Stan\_Rehshetnyk](https://community.wowza.com/u/Stan_Rehshetnyk)\ **Replies:** 5\ **Last updated:** [August 16, 2022, 7:11am UTC](https://community.wowza.com/t/livestream-starts-2-minutes-how-to-speed-up/95148 "2022-08-16T07:11:54Z")
Our client is looking for RTMP -\> HLS cloud service. WowzaCloud fits good, except long “engine” starting time. So it takes 2 minutes to create and start live stream. Is there way to speed up this process. So a user in o… --- ## [DVR of transcoder not store](https://community.wowza.com/t/dvr-of-transcoder-not-store/95254)
**Author:** [@chi\_nk1](https://community.wowza.com/u/chi_nk1)\ **Replies:** 1\ **Last updated:** [August 14, 2022, 9:08pm UTC](https://community.wowza.com/t/dvr-of-transcoder-not-store/95254 "2022-08-14T21:08:19Z")
I have original stream and transcoded stream. I want to record DVR both of 2 stream. With original stream it record normally. But with transcoded stream, it doesn’t save properly, while the original stream is still sa… --- ## [onTextData captions in SMIL file with DVR](https://community.wowza.com/t/ontextdata-captions-in-smil-file-with-dvr/94966)
**Author:** [@Brent\_Walters](https://community.wowza.com/u/Brent_Walters)\ **Replies:** 1\ **Last updated:** [May 20, 2022, 4:31pm UTC](https://community.wowza.com/t/ontextdata-captions-in-smil-file-with-dvr/94966 "2022-05-20T16:31:00Z")
Greetings all – I am running into a problem with closed captions in combination with the nDVR and Transcoder options for a live stream to our Roku channel. I am currently using a SMIL file to send the adaptive bitrate … --- ## [Output at fixed framerate?](https://community.wowza.com/t/output-at-fixed-framerate/94901)
**Author:** [@Webfox\_Developers](https://community.wowza.com/u/Webfox_Developers)\ **Replies:** 5\ **Last updated:** [May 13, 2022, 4:18pm UTC](https://community.wowza.com/t/output-at-fixed-framerate/94901 "2022-05-13T16:18:40Z")
We have users connecting into our Wowza instance with unknown framerates. We’re then transcoding the source and outputting it. We’d like to force the output to be a maximum of 30fps regardless of the input framerate. … --- ## [webRTC jerky and/or inverted with transcoder](https://community.wowza.com/t/webrtc-jerky-and-or-inverted-with-transcoder/94927)
**Author:** [@Peter\_Zsolnay](https://community.wowza.com/u/Peter_Zsolnay)\ **Replies:** 4\ **Last updated:** [May 10, 2022, 5:51pm UTC](https://community.wowza.com/t/webrtc-jerky-and-or-inverted-with-transcoder/94927 "2022-05-10T17:51:37Z")
Hi, I tested a webRTC application (with trial licence). An incoming H.264 RTMP (1080p@30fps 6000kbit) can be playback with webRTC in PC Chrome without any problem, that working very-very fine. But if I set transcoding … --- ## [WebRTC playback when using a transcoder](https://community.wowza.com/t/webrtc-playback-when-using-a-transcoder/94824)
**Author:** [@John\_Norris2](https://community.wowza.com/u/John_Norris2)\ **Replies:** 2\ **Last updated:** [May 10, 2022, 3:26pm UTC](https://community.wowza.com/t/webrtc-playback-when-using-a-transcoder/94824 "2022-05-10T15:26:12Z")
Hey Guys, Im struggling to get a decent picture when using a transcoder & WebRTC Playback, My Workflow is as follows, Stream a Master RTMP Stream Either 1080i50 OR 1080p25 approx 10mbit to Wowza Streaming Engine, This t… --- ## [Dynamic Transcoder overlay](https://community.wowza.com/t/dynamic-transcoder-overlay/94645)
**Author:** [@Touhidur\_Rahman](https://community.wowza.com/u/Touhidur_Rahman)\ **Replies:** 2\ **Last updated:** [February 28, 2022, 3:11pm UTC](https://community.wowza.com/t/dynamic-transcoder-overlay/94645 "2022-02-28T15:11:05Z")
I want to add a dynamic overlay in the transcoder for every incoming streaming. How can I use image path like ${com.wowza.wms.context.VHostConfigHome}/content/overlay/${SourceStreamName}.png? --- ## [Wowza Transcoder can transcode 1080p stream to 1080i 50FPS](https://community.wowza.com/t/wowza-transcoder-can-transcode-1080p-stream-to-1080i-50fps/94515)
**Author:** [@Syed\_Mairaj](https://community.wowza.com/u/Syed_Mairaj)\ **Replies:** 3\ **Last updated:** [February 1, 2022, 11:48am UTC](https://community.wowza.com/t/wowza-transcoder-can-transcode-1080p-stream-to-1080i-50fps/94515 "2022-02-01T11:48:24Z")
Wowza Streaming Engine’s Transcoder can change 1080p stream to 1080i 50FPS? if yes then how can I achieve that? Please help. . . --- ## [RTSP is presentation layer protocol or Application layer protocol?](https://community.wowza.com/t/rtsp-is-presentation-layer-protocol-or-application-layer-protocol/94226)
**Author:** [@Dhaval\_Rajput](https://community.wowza.com/u/Dhaval_Rajput)\ **Replies:** 0\ **Last updated:** [November 28, 2021, 4:09am UTC](https://community.wowza.com/t/rtsp-is-presentation-layer-protocol-or-application-layer-protocol/94226 "2021-11-28T04:09:51Z")
As per blogs of Wowza,there are 2 contradictory statementes given of RTSP, RTSP is an application-layer protocol used for commanding streaming media servers via pause and play capabilities ( https://www.wowza.com/blog/r… --- ## [Transcoder bitrate](https://community.wowza.com/t/transcoder-bitrate/94049)
**Author:** [@LogicaHost\_Solucoes](https://community.wowza.com/u/LogicaHost_Solucoes)\ **Replies:** 2\ **Last updated:** [November 3, 2021, 7:54pm UTC](https://community.wowza.com/t/transcoder-bitrate/94049 "2021-11-03T19:54:52Z")
Hello Can you provide me with a tutorial, or help of each bitrate in the transcoder set up? Example: 1080 -\> audio: ? video: ? 720 -\> audio: ? video: ? 320 -\> audio: ? video: ? 160 -\> audio: ? video: ? any documen… [Next page](https://community.wowza.com/tag/transcoder/5.md?match_all_tags=true&page=1&tags%5B%5D=transcoder)