I'm not getting 1080p quality

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lMayel

New Member
Hello and good night everybody, I'm writing this thread because even tho I research a lot and use multiple configurations to stream on twitch, I still don't get my transmission to run at 1080p at all, and I totally use 1080p 60 fps configuration on OBS, which I don't truly get why.
I cannot upload a video here but i guess I can link my twitch account where you can see my latests transmitions, and it shows that the quality of the gameplay is obviusly not 1080p, but somehow when the screen is static it appears to be on full quality:
www.twitch.tv

Twitch

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Next is my OBS configuration for streaming, I want to clarify that I use CQP because even tho every tutorial says that u have to use CBR (which at fist I used because I have a good internet) the stream quality is very well but then suddenly the stream just get laggy and is not really pleasant to watch. But this CQP config seems to work for me over the last year, but the quality image is not the best as I said; by the way, when I put "Quality" settings on Perfil Quality it seems to improve the quality of the stream, but then it starts to laggy again.

So I've tried everything I could to run my streams at 1080p 60fps but nothing seems to work at all, so I will be glad if someone can give me some advices or try some configuration to do it, thank you for your time overall.
 

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Swordayne

New Member
I had the same issue and this is solution I found. I had to many sources in 1 scene. like I had all my different games sources in 1 scene. but when I made scenes for every game source. That fixed the problem for me.
 
Harold

Harold

Active Member
Twitch's bitrate limits aren't enough to retain picture quality at 1080p30, let alone 1080p60
 
Harold

Harold

Active Member
They aren't. You need almost 12,000kbit video bitrate just to START at 1080p30, streams at 720p60 will be significantly less blocky than ones at 1080p30, and even less blocky again than ones at 1080p60

High motion content needs high bitrate to maintain picture quality.

You also need to remember that an extremely large percentage of viewers are either not watching fullscreen (which given the size of normal displays puts the player's size at only slightly larger than 720p) or are watching on a screen where the added resolution does not improve anything for their viewing experience, especially with the increased pixelation.
 
qhobbes

qhobbes

Active Member
Try adding some static borders to your scene. I use 2 60 px wide borders for my stream. You can also try streaming to Twitch at 1600x900 60 FPS. Keep in mind that two 720p frames still have lower amount of pixels than 1 1080p frame. More bits per pixel with 720p 60 FPS than 1080p at 30 FPS. I stream pool/billiards where 50% of the screen is static for majority of the time, your mileage may vary but this should help.
 
Harold

Harold

Active Member
Because of the underlying math involved in h264 encoding, 900p is not recommended. Using it can cause playback issues with some viewers.
 
FerretBomb

FerretBomb

Active Member
Harold said:
They aren't. You need almost 12,000kbit video bitrate just to START at 1080p30, streams at 720p60 will be significantly less blocky than ones at 1080p30, and even less blocky again than ones at 1080p60

High motion content needs high bitrate to maintain picture quality.

You also need to remember that an extremely large percentage of viewers are either not watching fullscreen (which given the size of normal displays puts the player's size at only slightly larger than 720p) or are watching on a screen where the added resolution does not improve anything for their viewing experience, especially with the increased pixelation.
Click to expand...
Correction. 12mbps is the 0.1bpp reducing-rate-of-returns point for average 1080p60 video, not 30fps.
1080p30 at 6mbps (6000kbps) is clean and generally has minimal artifacting. High-motion and high-detail (usually lots of foliage) can benefit from greater than 0.1 bits-per-pixel however.

720p60 needs just as much bitrate as 1080p30 to maintain the same image quality. 720p has half the pixels of 1080p, double the framerate needs roughly double the bitrate.

Agreed on 900p though (and the completely-pulled-from-someone's-ass 936p with incredibly shaky justifications, similar to the also-completely-pulled-from-someone's-ass 48fps). That garbage needs to stop.
 
equalf

equalf

Member
so at 6k bitrate 1080p 30fps is ok in general or better consider downscaling to something like 720 30/60 or 864 30/60. high motion games included like battle royales.
 
Harold

Harold

Active Member
Especially for high-motion content, twitch's bitrates are NOT suitable for anything really significantly above 720p.
1340x754 is the default player size on an extremely large percentage of your potential audience.
 
equalf

equalf

Member
Harold said:
Especially for high-motion content, twitch's bitrates are NOT suitable for anything really significantly above 720p.
1340x754 is the default player size on an extremely large percentage of your potential audience.
Click to expand...
to be honest i just streamed on 1080p 30fps 6k bitrate nvenc, cod warzone and its not bad at all.
www.twitch.tv

Twitch

Twitch is the world's leading video platform and community for gamers.
www.twitch.tv www.twitch.tv
 
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