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Experimental twitch.tv proxy

Blogs > R1CH
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1 2 3 4 5 12 13 14 Next All
R1CH
Profile Blog Joined May 2007
Netherlands10340 Posts
Last Edited: 2013-11-18 17:50:11
July 08 2013 19:35 GMT
#1
This experiment is over!
I don't recommend using this any more since it will cause Chrome to crash.

+ Show Spoiler +
So there's been a lot of complaints about twitch's poor performance recently. While they are to blame for some of it (lack of European data centers and other POPs), I suspect a lot of the problems stem from Flash player and poor TCP/IP tuning. I wrote a program to analyze how fast Flash player is able to receive the data and it did appear to stall from time to time, which may affect how TCP RWIN tuning over higher BDP connections (ie, Europe to US) works, potentially causing too small of a window size.

This program will intercept RTMP connections and handle the networking separately from Flash player using an event based system for maximum performance. If Flash player is unable to read the data fast enough, it will be buffered (up to 4MB). Additionally, a larger initial receive window is attempted.

Fortunately / unfortunately my own connection rarely lags, so I have limited data to see if this has any effect, but from my sample size of kollin, it appears to improve things a little so why not give it a try!

Requirements:
Visual Studio 2010 Runtimes
Google Chrome
Pepper Flash (Chrome's internal flash player, unless you change it this is the default)
Windows 7

Download:
http://www.teamliquid.net/staff/R1CH/TwitchProxy.zip

Put both files in a folder somewhere and run Chrome, then run TwitchProxy. You can tell if it works by watching the console, when a stream is open you should see it spamming away about buffers. If it breaks and you can't browse anything, just restart Chrome - all changes are applied in-memory only. If you restart Chrome completely, you will also need to restart the proxy for it to apply to the new Chrome process.

Note that this program is pretty much an experiment so treat it as such.
++


****
AdministratorTwitter: @R1CH_TL
Immaterial
Profile Blog Joined September 2010
Canada510 Posts
July 08 2013 19:38 GMT
#2
Truly a wizard. Thank you for this~!
It is the mark of an educated mind to be able to entertain a thought without accepting it.
prodiG
Profile Blog Joined January 2010
Canada2016 Posts
July 08 2013 19:40 GMT
#3
Rich, I am nominating you for CTO of eSports. This is awesome.
ESV Mapmaking Team || http://twitter.com/prodiGsc || Real talk, I don't have time to sugar-coat it for you sir
Grettin
Profile Joined April 2010
42381 Posts
July 08 2013 19:41 GMT
#4
Interesting. I will use it when experiencing problems. Thank you!
"If I had force-fields in Brood War, I'd never lose." -Bisu
R1CH
Profile Blog Joined May 2007
Netherlands10340 Posts
July 08 2013 19:41 GMT
#5
Please let me know if it actually helps you or not, I'm curious as to whether it actually does anything .
AdministratorTwitter: @R1CH_TL
NB
Profile Blog Joined February 2010
Netherlands12045 Posts
July 08 2013 19:41 GMT
#6
But the question is, does the NSA read my twitch chat?

Thanks a lot R1ch
Im daed. Follow me @TL_NB
Heyoka
Profile Blog Joined March 2008
Katowice25012 Posts
July 08 2013 19:42 GMT
#7
I downloaded this and now my computer is full of viruses you won't get away with it this time mister wizard!!!!
@RealHeyoka | ESL / DreamHack StarCraft Lead
Wintex
Profile Blog Joined July 2011
Norway16838 Posts
July 08 2013 19:43 GMT
#8
Thank you r1ch, i love you.
The Bomber boy
Jacmert
Profile Blog Joined October 2011
Canada1709 Posts
July 08 2013 19:44 GMT
#9
You're a wizard, Harry :D I don't think I experience too much Twitch lag, but even so, this sounds like quite a nice project you started/completed!
Plat Support Main #believe
kollin
Profile Blog Joined March 2011
United Kingdom8380 Posts
July 08 2013 19:44 GMT
#10
This works pretty well for me, a nice solution for EU people with problems ^^
felisconcolori
Profile Blog Joined October 2011
United States6168 Posts
July 08 2013 19:44 GMT
#11
But I use firefox!

More seriously, this doesn't impact ad serving and the like right? I wouldn't want it to run afoul of Twitch or impact their ability to serve such things.

+ Show Spoiler +
Can't we kill Flash for video already? HTML5 or sommat like that?
Yes, I email sponsors... to thank them. Don't post drunk, kids. My king, what has become of you?
Butterednuts
Profile Blog Joined September 2010
United States859 Posts
July 08 2013 19:44 GMT
#12
Heya R1CH, I'll give this a go when I get home!
Chameleons Cast No Shadows
Excalibur_Z
Profile Joined October 2002
United States12235 Posts
July 08 2013 19:45 GMT
#13
On July 09 2013 04:42 Heyoka wrote:
I downloaded this and now my computer is full of viruses you won't get away with it this time mister wizard!!!!


Those go away if you sign up for all of the mail order bride offers and new car sweepstakes.
Moderator
R1CH
Profile Blog Joined May 2007
Netherlands10340 Posts
July 08 2013 19:45 GMT
#14
On July 09 2013 04:44 felisconcolori wrote:
But I use firefox!

More seriously, this doesn't impact ad serving and the like right? I wouldn't want it to run afoul of Twitch or impact their ability to serve such things.

+ Show Spoiler +
Can't we kill Flash for video already? HTML5 or sommat like that?

Firefox unfortunately spawns an external process and connects before my program can hook it which is why it isn't supported. This affects nothing other than RTMP (the video) connection, everything else should go through your browser, and even if it didn't, it should make no difference.
AdministratorTwitter: @R1CH_TL
Gemini_19
Profile Joined June 2010
United States1238 Posts
July 08 2013 19:45 GMT
#15
All that happens is a black script box appears on my screen O_o Is that supposed to happen?
@GGemini19 GM Protoss | http://www.twitch.tv/geminisc2 | I <333 HerO & Trap | Check out my Build of the Week series on /r/allthingsprotoss, TL, or Spawning Tool
Grettin
Profile Joined April 2010
42381 Posts
Last Edited: 2013-07-08 19:46:49
July 08 2013 19:45 GMT
#16
On July 09 2013 04:41 R1CH wrote:
Please let me know if it actually helps you or not, I'm curious as to whether it actually does anything .


Will do. By the way, is there a correct way to close this or does it matter? Can i just straight up close the console or is it 'better' to close the stream(s) first and then the proxy? Asking, if that would mess up something with the proxy itself.
"If I had force-fields in Brood War, I'd never lose." -Bisu
Sinistro
Profile Joined February 2012
Brazil684 Posts
July 08 2013 19:46 GMT
#17
I logged from my work risking to get fired just to thank you for this!

since it "fix" the problem handling the RTMP stream, watching it in VLC can solve the problem too?
XilDarkz
Profile Blog Joined April 2010
United States563 Posts
July 08 2013 19:47 GMT
#18
I'm going to watch streams for a bit, when I experience lag switch to this, and hopefully give you valuable feedback.

In the mean time, thanks for the investigation!
aka Mathies! twitch.tv/Mathies if you want to watch me fail. esfiworld.com/author/mathies/
R1CH
Profile Blog Joined May 2007
Netherlands10340 Posts
July 08 2013 19:47 GMT
#19
On July 09 2013 04:45 Grettin wrote:
Show nested quote +
On July 09 2013 04:41 R1CH wrote:
Please let me know if it actually helps you or not, I'm curious as to whether it actually does anything .


Will do. By the way, is there a correct way to close this or does it matter? Can i just straight up close the console or is it 'better' to close the stream(s) first and then the proxy? Asking, if that would mess up something with the proxy itself.

Closing the program will interrupt any active streams, but the browser hook should notice the program isn't running after a refresh and fall back to a direct connection.
AdministratorTwitter: @R1CH_TL
R1CH
Profile Blog Joined May 2007
Netherlands10340 Posts
July 08 2013 19:48 GMT
#20
On July 09 2013 04:45 Gemini_19 wrote:
All that happens is a black script box appears on my screen O_o Is that supposed to happen?

No, when you watch streams the box is supposed to fill with text. If it doesn't, there was probably a problem hooking Chrome.
AdministratorTwitter: @R1CH_TL
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