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Active: 979 users

HOWTO: Make XSplit 400%+ more efficient

Forum Index > Tech Support
Post a Reply
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R1CH
Profile Blog Joined May 2007
Netherlands10035 Posts
Last Edited: 2014-04-01 11:41:19
May 08 2011 23:02 GMT
#1
Update (13th May 2011)
XSplit have released a better x264 encoder in their update package. The directions in this thread are no longer necessary, simply update to the latest XSplit version. More information: http://www.xsplit.com/blog.php?post_id=267

The content below is preserved for historical reasons only.




What?
I recently wrote a stream quality guide and lambasted XSplit for its lack of multi-core encoding which severely hinders performance on modern PCs that can execute 4 or 8 threads simultaneously. I was intrigued since XSplit uses x264, which is programmed to be multi-thread capable and decided to look into it further.

Turns out XSplit ships with an old x264 encoder which either doesn't support multithreading or it is turned off by default. Thankfully due to the wonders of API compatibility, we can simply drop in a replacement encoder and get full benefit from multi-core systems! Here are two videos highlighting the difference, encoded with the exact same xsplit settings - same bitrate, same FPS, same quality - only the modified encoder.

Preview Video
Here's a preview of the difference using fast action (Quake II) with hard-to-encode scenes (motion blur, quick camera switching, etc):

Old x264: http://www.mediafire.com/?vivb4c3dckabuy3
New x264: http://www.mediafire.com/?4wz96f7i84sk8cx

How To Install
0. Close XSplit.

1. Download libx264112.zip.

2. Rename libx264-112.dll in your C:\Program Files\SplitMediaLabs\XSplit folder to libx264-112.dll.old

3. Extract the new libx264-112.dll to your C:\Program Files\SplitMediaLabs\XSplit

That's it! Now when you encode with XSplit, it will use as many cores as necessary for a good quality video.

On my Core i5 2500k @ 4GHz, I am able to use the x264 "medium" preset - the same quality that our TSL VODs are encoded in - in realtime @ 720p30. Obviously results will vary once you throw SC2 into the mix, but for those of you who use XSplit on quad core and especially i7 CPUs, this should allow you to greatly increase quality on your stream (note that replacing this DLL won't actually improve quality by itself, it will allow you to set higher quality without running into single thread CPU limits).

Credits
The x264 encoder was taken from LoRd_MuldeR's libx264 for AVIDemux replacements (link). I have re-hosted it on TL to ensure a safe download.
AdministratorTwitter: @R1CH_TL
Sheekthief
Profile Blog Joined April 2010
United States267 Posts
Last Edited: 2011-05-08 23:52:34
May 08 2011 23:06 GMT
#2
Holy shit, were you full screen on quake? I would love to stream quake!

No really though, this is amazing. EDIT: Just actually watched it, and DAMN what a difference.
Commentator at RageQuit.tv | www.RageQuit.tv |
irninja
Profile Blog Joined June 2010
United States1219 Posts
May 08 2011 23:07 GMT
#3
This is huge. Thanks for your continued help for all of the up and coming streamers out there.
www.teamlegacy.net | MMO junkies
Darthozzan
Profile Blog Joined December 2010
Sweden132 Posts
May 08 2011 23:09 GMT
#4
Thanks for this awesome find R1CH! Will be very interesting to test this out!
http://complexitygaming.com ° @Darthozzan on twitter
Charger
Profile Blog Joined September 2010
United States2403 Posts
May 08 2011 23:09 GMT
#5
Holy crap R1CH that is amazing. I noticed you mentioned i5 and i7 but I have an AMD Phenom II x4 955 (3.2GHz), would this help me out streaming at all? Although admittedly I never had any huge issues to begin with.
It's easy to be a Monday morning quarterback.
R1CH
Profile Blog Joined May 2007
Netherlands10035 Posts
May 08 2011 23:10 GMT
#6
Yeah it will help on any system quad core or higher.
AdministratorTwitter: @R1CH_TL
Antoine
Profile Blog Joined May 2010
United States7358 Posts
Last Edited: 2011-05-08 23:14:44
May 08 2011 23:11 GMT
#7
I noticed this greatly increases the size of the file, presumably it also affects bandwidth use? How will this replacement affect people who are already streaming near their max upload speed?

edit: guess i should have downloaded the videos instead of just clicking the links lol
ModeratorFlash Sea Action Snow Midas | TheStC Ret Tyler MC | RIP 우정호
R1CH
Profile Blog Joined May 2007
Netherlands10035 Posts
Last Edited: 2011-05-08 23:13:11
May 08 2011 23:12 GMT
#8
On May 09 2011 08:11 Antoine wrote:
I noticed this greatly increases the size of the file, presumably it also affects bandwidth use? How will this replacement affect people who are already streaming near their max upload speed?

I recorded longer in the second video since I wasn't getting motion sickness. It's the exact same bitrate, just longer. You get to enjoy more awesome frags.
AdministratorTwitter: @R1CH_TL
lynx.oblige
Profile Joined August 2009
Sierra Leone2052 Posts
May 08 2011 23:15 GMT
#9
One would wonder why the developers of such a popular program have not done this. So would you prefer xsplit with this fix over FMLE, R1CH?
Everyone needs a nemesis.
Torte de Lini
Profile Blog Joined September 2010
Germany30668 Posts
May 08 2011 23:18 GMT
#10
So there's nothing to adjust with this change? Is it just smoother or the capabilities better?
Also, do I have to readd this every patch?
https://twitter.com/#!/TorteDeLini (@TorteDeLini)
nekuodah
Profile Joined August 2010
England2376 Posts
May 08 2011 23:18 GMT
#11
Thanks for this definatly gona use for my stream.
R1CH
Profile Blog Joined May 2007
Netherlands10035 Posts
May 08 2011 23:19 GMT
#12
On May 09 2011 08:15 lynx.oblige wrote:
One would wonder why the developers of such a popular program have not done this. So would you prefer xsplit with this fix over FMLE, R1CH?

I'm still disappointed with the full screen source scaling and lack of diagnostic information, but this makes it a lot better. Since it's x264 and not MainConcept, the quality from XSplit encodes should be much higher quality than FMLE.

On May 09 2011 08:18 Torte de Lini wrote:
So there's nothing to adjust with this change? Is it just smoother or the capabilities better?
Also, do I have to readd this every patch?

Most likely, since XSplit uninstalls and re-installs each patch.
AdministratorTwitter: @R1CH_TL
brotosterone
Profile Blog Joined April 2010
United States260 Posts
May 08 2011 23:23 GMT
#13
thanks rich
Vequeth
Profile Blog Joined April 2009
United Kingdom1002 Posts
May 08 2011 23:23 GMT
#14
Have you had any time to fiddle with the quality 1-10 on xsplit? Im wondering how much of an impact it has.
Aspiring British Caster / Masters Protoss
ozzymoto
Profile Joined September 2010
108 Posts
May 08 2011 23:24 GMT
#15
Would this be an improvement for a dual core machine?
turdburgler
Profile Blog Joined January 2011
England5491 Posts
May 08 2011 23:25 GMT
#16
on a quad core system will you run into any problems running sc2 at the same time as xsplit if its attempting to use all 4 cores, or will it be smart about its usage?

either way big thanks!
Pabi
Profile Joined March 2011
Germany126 Posts
May 08 2011 23:25 GMT
#17
Wow just downlaoded it gonna try it now, really awesome! Thx for that!
lynx.oblige
Profile Joined August 2009
Sierra Leone2052 Posts
May 08 2011 23:25 GMT
#18
On May 09 2011 08:10 R1CH wrote:
Yeah it will help on any system quad core or higher.


I presume not very much on dual, if any, based on that quote but R1CH would know better.
Everyone needs a nemesis.
R1CH
Profile Blog Joined May 2007
Netherlands10035 Posts
May 08 2011 23:27 GMT
#19
On May 09 2011 08:23 Vequeth wrote:
Have you had any time to fiddle with the quality 1-10 on xsplit? Im wondering how much of an impact it has.

The quality setting sets the CRF, which is then further capped by the VBR limit. CRF basically sets how many bits are assigned to each frame. It has a big impact, most people on quad core systems should be able to handle 5-10 easily though. It's more of a bitrate than a CPU thing, lower quality will result in lower bitrate.
AdministratorTwitter: @R1CH_TL
slowmo442
Profile Joined March 2011
United States27 Posts
May 08 2011 23:30 GMT
#20
will people with only 2 cores benefit aswell?
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