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SRT Transport Support

Please consider including support for SRT transport http://www.srtalliance.org/ to improve stream reliability over less than perfect internet connections.

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  • Our internal reference for this feature 
    WIRE-13505

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  • Hi; Is there any aupdate adding SRT Stream Transport feature to Wirecast?

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  • Tolga Ergin It's on the drawing board as they say. I can't speak to the specifics. The users are being heard.

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  • As a new user of wire cast I must say I’m very surprised to see this not implemented yet.  The open source world are wildly out performing you in innovation.  

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  • You can use OBS and NDI into wirecast. Or just stay in OBS. I agree that other vendors have implemented it and it's a shame wirecast is so slow. But from experiences it has always been slow. ASIO (so old) took years to be implemented.

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  • Testing the implementation of SRT remote camera inputs.  I would be very hesitant to move over to new streaming software after so many years with Wirecast.

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  • SRT will be implemented. I can't speak to specifics though.

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  • CraigS 

    CraigS said:
    SRT will be implemented. I can't speak to specifics though.

    Thats good to hear Craig. What would be helpful is even an interim placeholder of intent in 14.x or 15.x .... Even if it changes later, this type of transparency will help people know there is light at the end of the tunnel...

    Greg Kuhnert

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  • CraigS  SRT will support 8 audio tracks?

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  • Marcin T I can't speak to specifics (yet) but is this something you've seen elsewhere?

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  • CraigS said:
    Marcin T I can't speak to specifics (yet) but is this something you've seen elsewhere?

     yep, https://help.livestream.com/hc/en-us/articles/360028025212-Multi-Language-Audio

    Livestream use UDP/MPEG-TS. This can also be done via SRT/MPEG-TS. 

    Wirecast has an interface to audio tracks, but does not use this potential.

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  • Marcin T While I do see multi-language audio support I don't see mention of SRT in that context. The developers will want to see a direct reference or some verification that they are supporting Multi-Language SRT. Such a feature would only be useful if support by CDNs

    Marcin T said:
    This can also be done via SRT/MPEG-TS. 

    But do they say that directly in their online documents or can you otherwise verify that they support it.

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  • CraigS This can be easily tested on OBS https://obsproject.com/wiki/Streaming-With-SRT-Protocol#option-2-stream-srt-with-the-custom-ffmpeg-record-output

    My test:

     PC (OBS) --> srt(video:1, audio: 3) --> Server (ffmpeg + shaka packager) => CMAF

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  • Marcin T Thanks for testing and confirming.

    OBS supports 6 tracks
    Several audio tracks can be streamed (for instance, track 1: main track, track 2: background music, track 3: commentary etc.) while in option 1 only a single track can be selected. OBS Studio supports up to 6 audio tracks.

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  • CraigS It is also worth thinking about receiving such a signal. And the ability to manage audio just like in the SDI signal.  I'm talking about sending and receiving , for example, independent audio tracks for callers.

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  • Marcin T You may want to make that a separate feature request so the developers understand and target it.

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  • Is this in private beta?  Release date?

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  • scott tupper We're still doing some internal testing. In fact, that's why release dates are a problem. Tests sometimes reveal more work needs to be done. There will be a beta announcement when we feel it's stable enough for public testing. That should be soon but that's about a close as we can get with dates.

    Like 3
  • Interested in both sending and receiving SRT.

    Use case = remote participants sending audio/video (perhaps with a desktop/app share as another feed) to 1 remote production editor, who assembles and sends to a final editor/coordinator - also often serving as onscreen talent.

    A lightweight app on the participant end that requires barely any tech knowledge would be ideal. We ship kits to remote participants, but sending thousands of dollars of kit out gets a wee bit troublesome. :)

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      • CraigSModerator
      • Telestream Desktop Forum Moderator
      • CraigS
      • 2 wk ago
      • Reported - view

      Dan Keldsen Please vote. It looks like Wirecast SRT out is coming soon

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    • CraigS - sure thing! Thought I had, although now realizing I'd simply liked it.

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  • For the time being you can work around with the VT tools from medialooks.

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  • Any updates on schedule?

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      • CraigSModerator
      • Telestream Desktop Forum Moderator
      • CraigS
      • yesterday
      • 1
      • Reported - view

      Roope Berg It's being worked on and going through testing. We still need to do some tweaks but it'll definitely be on its way. I can't give a specific date yet as they need to do more tests after the tweaks.

      Like 1
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