logo

Live Production Software Forums

www.vmix.com

Welcome Guest! To enable all features please Login or Register.

Notification

Icon
Error
1080i production and 1080p streaming
Options
Go to last post Go to first unread
Previous Topic Next Topic
rinaldo  
#1 Posted : Sunday, August 26, 2018 7:51:43 PM(UTC)
rinaldo

Rank: Advanced Member

Groups: Registered
Joined: 11/29/2016(UTC)
Posts: 75
Man
Location: Italy

Thanks: 1 times
Was thanked: 4 time(s) in 3 post(s)
Hi folks!


On a 1080i production how do you set FFMPEG to stream over Youtube?

On my last live production some edges were not so "sharp".

If I switch both system and cameras to 1080-50p and stream @ 1080-50p the edges are sharp

Ideas?
Back to top

Wanna join the discussion?! Login to your vMix Forums forum account, or Register a new forum account.
Back to top  
mjgraves  
#2 Posted : Tuesday, August 28, 2018 10:06:35 AM(UTC)
mjgraves

Rank: Advanced Member

Groups: Registered
Joined: 7/1/2015(UTC)
Posts: 1,151
Man
United States
Location: Houston TX

Thanks: 319 times
Was thanked: 263 time(s) in 233 post(s)
A 1080i production has half the vertical resolution of a 1080p equivalent. You can think of 1080i as being 540p. You can't really overcome that except to down-sample to something lesser, like 720p.
Back to top
WWW BLOG
DWAM  
#3 Posted : Tuesday, August 28, 2018 11:46:56 AM(UTC)
DWAM

Rank: Advanced Member

Groups: Registered
Joined: 3/20/2014(UTC)
Posts: 2,721
Man
France
Location: Bordeaux, France

Thanks: 243 times
Was thanked: 794 time(s) in 589 post(s)
Hi!

if all your cams are set to output 1080i50

- set vMix project to 1080p25. All cams will be deinterlaced
- record 1080p25
- stream 1080p25

if all you cams support 1080p50, you have the choice to go for 1080p50 or 1080p25. However note that 1080p50 requires bandwidth/higher bitrates than 1080p25 and unless you're doing sports or fast action there is no real benefit for 1080p50.

Guillaume
Back to top
WWW
thanks 1 user thanked DWAM for this useful post.
servizio broadcast on 2/11/2022(UTC)
rinaldo  
#4 Posted : Wednesday, August 29, 2018 8:25:27 AM(UTC)
rinaldo

Rank: Advanced Member

Groups: Registered
Joined: 11/29/2016(UTC)
Posts: 75
Man
Location: Italy

Thanks: 1 times
Was thanked: 4 time(s) in 3 post(s)
DWAM wrote:
Hi!

if all your cams are set to output 1080i50

- set vMix project to 1080p25. All cams will be deinterlaced
- record 1080p25
- stream 1080p25

if all you cams support 1080p50, you have the choice to go for 1080p50 or 1080p25. However note that 1080p50 requires bandwidth/higher bitrates than 1080p25 and unless you're doing sports or fast action there is no real benefit for 1080p50.

Guillaume



Thanks Guillame, I'm doing fast sport so 1080p50 will help a little.
I've tried last week to set vMix 1080p50 and ingest the cameras at the same settings but the only issue was with instant replay not so smooth.
Could be due to the SSD not fast enough? It is an SATA and not M2...
Back to top
Users browsing this topic
Guest
Forum Jump  
You cannot post new topics in this forum.
You cannot reply to topics in this forum.
You cannot delete your posts in this forum.
You cannot edit your posts in this forum.
You cannot create polls in this forum.
You cannot vote in polls in this forum.

Privacy Policy | Powered by YAF.NET | YAF.NET © 2003-2025, Yet Another Forum.NET
This page was generated in 0.153 seconds.