Atem mini and fb live

Questions about ATEM Switchers, Camera Converter and everything live!
  • Author
  • Message
Offline

Gavin_c_clark

  • Posts: 299
  • Joined: Thu Apr 16, 2015 3:51 pm

Atem mini and fb live

PostMon Dec 02, 2019 4:06 pm

Hi,

Live production newbie!

A couple of quick questions I can't find answer for if that's possible please!

I've just got my item mini- the tech specs list only 1080p outputs- facebook live specs are listed as 720p max? How does that work? Does the OBS software down convert it or does Facebook do it?

What resolution should I render out text and graphics from After effects for playout through a hyper deck- 720p or 1080p (for facebook live)

Many thanks and apologies if these are really basic!
Offline
User avatar

Xtreemtec

  • Posts: 5391
  • Joined: Wed Jan 02, 2013 11:48 am
  • Location: The Netherlands

Re: Atem mini and fb live

PostMon Dec 02, 2019 5:04 pm

Just put the Atem in 720P mode. Plug the USB in to your computer and start up Facebook and go live. Dont need OBS. FB should be able to ingest the "webcam feed" from the atem direct. ;)
Daniel Wittenaar .:: Xtreemtec Media Productions ::. -= www.xtreemtec.nl =-
4K OBV Trailer, ATEM TVS HD, 4M/E Broadcast Studio 4K, Constelation 8K, Hyperdeck Studio 12G, Ursa Broadcast 4K, 4K fiber converters with Sony Control
Offline
User avatar

Roman Pytkin Pekarek

  • Posts: 2314
  • Joined: Tue Oct 30, 2012 1:11 pm
  • Location: SVK

Re: Atem mini and fb live

PostTue Dec 03, 2019 12:31 am

Yes .. OBS can downscale 1080p to 720p for U .. And I preffer OBS as an encoder , because it use X264 , whitch produce streams in best quality ..
http://tally.pytkin.sk
http://chucktv.eu
http://www.stonepp.tv
http://www.media-planet.sk
Offline
User avatar

alexlindsay

  • Posts: 27
  • Joined: Mon Sep 03, 2018 1:11 pm
  • Real Name: Alexander Lindsay

Re: Atem mini and fb live

PostTue Dec 03, 2019 3:15 am

You should be able to run the Switcher as 1080p directly into FBLive without any issue. This is more important if you want to record at 1080p (even if you are streaming at 720p).

a
Offline

Gavin_c_clark

  • Posts: 299
  • Joined: Thu Apr 16, 2015 3:51 pm

Re: Atem mini and fb live

PostTue Dec 03, 2019 8:44 am

Thanks for the replies! I’ll give both a go!
Offline

Dave Del Vecchio

  • Posts: 1603
  • Joined: Mon Nov 25, 2013 10:25 am

Re: Atem mini and fb live

PostTue Dec 03, 2019 9:49 am

One other note is that Facebook will handle a 1080p stream as input and will downconvert it to 720p for delivery to viewers. There's no real quality advantage to sending Facebook a 1080p stream and it will use more bandwidth than 720p, but there are still some reasons you might want to do this.

One is if you are doing local recording of a broadcast (for archiving or later editing). If all of your cameras and gear are 1080p, then you might want to run your switcher at that resolution so that the recordings are higher quality. And if you are streaming using OBS or other streaming software, this would allow you to do use a single output resolution (1080p) for both streaming and local recording. If you wanted a 1080p local archive while also streaming at 720p you would need to do multiple encodings which is significantly more resource intensive.

Another reason you might do this is if sending the same stream to multiple streaming platforms simultaneously, then you might want to send 1080p to the platforms that support it, in which case it's easier to send 1080p to all of them (to avoid the need for multiple encodes at different resolutions).

Also, Facebook has started to add 1080p streaming support to viewers as well, but it seems to be limited to gaming video streamers through their Level Up program for the time being:
https://www.facebook.com/help/publisher ... 0661747044

And there are also reports that it is possible using a dedicated Wowza ClearCaster hardware encoder:
https://www.wowza.com/blog/1080p-facebook-live
Offline
User avatar

Roman Pytkin Pekarek

  • Posts: 2314
  • Joined: Tue Oct 30, 2012 1:11 pm
  • Location: SVK

Re: Atem mini and fb live

PostTue Dec 03, 2019 12:04 pm

Im streaming to facebook 1-2 streams pre week .. Eveytime to accounts of my clients .. And I dont understand why some clients have max supported resolution 720p and other have 1080p .. We are working in 1080i (cameras are SONY EX350/400) , records are in prores 1080i .. And stream is going thru Teradec Cube encoder into 720p .. But i want to made smaller streaming box with ATEM mini and OBS as a streamer ..
http://tally.pytkin.sk
http://chucktv.eu
http://www.stonepp.tv
http://www.media-planet.sk
Offline
User avatar

alexlindsay

  • Posts: 27
  • Joined: Mon Sep 03, 2018 1:11 pm
  • Real Name: Alexander Lindsay

Re: Atem mini and fb live

PostTue Dec 03, 2019 4:44 pm

Some more prominent pages are enabled for 1080p on Facebook. It's a limited rollout.

One note for 1080i - not all down converts are equal. You may see interlaced artifacts in high motion areas in lower quality progressive conversions.
Offline

BenjimanH

  • Posts: 1
  • Joined: Sun Sep 06, 2020 7:58 pm
  • Real Name: Ben Hurd

Re: Atem mini and fb live

PostSun Sep 06, 2020 8:01 pm

Does pushing 1080p to FB live cause much of a time delay at all?

I'm trying to work out if it makes more sense to just push 1080p to FB Live via black magic software or to convert the stream to 720p before pushing it in something like OBS?

Thanks in advance : )
Offline

Dave Del Vecchio

  • Posts: 1603
  • Joined: Mon Nov 25, 2013 10:25 am

Re: Atem mini and fb live

PostTue Sep 08, 2020 9:06 pm

BenjimanH wrote:Does pushing 1080p to FB live cause much of a time delay at all?

I'm trying to work out if it makes more sense to just push 1080p to FB Live via black magic software or to convert the stream to 720p before pushing it in something like OBS?
I haven't noticed any difference in latency between sending a 1080p or 720p to Facebook Live.

Most of the major streaming providers like Facebook, YouTube, etc. seem to transcode the incoming video stream into different resolutions and bitrates, regardless of what the input resolution is. So, even if receiving 720p on input, they will still re-encode the video to produce 720p output at their desired delivery bitrate, as well as 480p or 360p encodes for more bandwidth constrained viewers.

The main reason to send 720p to Facebook rather than 1080p, is if your upload bandwidth is very limited. Because, then you could do a higher quality 720p encode at a lower bitrate than would be required for a 1080p encode.
Offline

jduvick

  • Posts: 48
  • Joined: Mon Sep 14, 2020 8:41 pm
  • Real Name: Jon Duvick

Re: Atem mini and fb live

PostThu Sep 24, 2020 10:28 pm

>>The main reason to send 720p to Facebook rather than 1080p, is if your upload bandwidth is very limited.

That's my problem as a brand-new church AV guy trying to make the ATEM Mini Pro work with 5 or often fewer MBps upload.

I'm disappointed that the Mini Pro has no 720p option. I'm forced into the 1080p 'Low" stream setting or else adding another link in the signal chain with OBS which will mean a new PC (my MacBook Air can't handle it).

Jon

Return to Live Production

Who is online

Users browsing this forum: No registered users and 54 guests