Question / Help New to streaming.

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Fate

New Member
Im new to streaming and not entirely sure what my computer is able to stream and where to start experimenting.

Any advise and tips would be apreciated, so far i've been trying to stream 720 but i think my cpu doesen't have juice for that since no matter how much i tweak the settings i can't get rid of stream lag.

cpu - i5 760 2.8 GHz
gpu - AMD radeon gigabyte HD 7950
ram - 8gb

Local


London, UK
 
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willll162904

Member
ok these settings should be good - downscale to 720p from ur base res 30 fps 3k bit 3500 buffer cpu preset ultrafast, if u still have lag lower the cpu preset until it goes away. thats definately your bottleneck. quality 7 or 10 depending on waht motion games ur playing process priority class high.
 
F

Fate

New Member
Been trying settings out, but haven't been able to stream anything above 960x540 without constant lag on stream.

How much of a bottleneck my cpu is? i've been considering buying a new for quite a while, what would your recomendations be?
 
C

Cloudwolf

Member
Your cpu seems to be on par with mine assuming it's a quad core (which i'm pretty sure all i5's are) in which case I am able to stream 30fps 720p. Please post a log of your stream so we can see your settings that may help us figure out where your issue is arrising. Somethings to look out for DO NOT use Aero and monitor capture on windows 7. Infact try not to use Monitor catpure at all. Game capture and window capture are the better streaming options for performance. Try not to have too many sources in a scene. Make sure the bitrate is sufficient for your resolution and fps. Setting the preset in advanced to the quicker settings should reduce CPU strain.
 
F

Fate

New Member
Code: 
15:02:37: Open Broadcaster Software v0.522b - 64bit (　^ω^)
15:02:37: -------------------------------
15:02:37: CPU Name: Intel(R) Core(TM) i5 CPU         760  @ 2.80GHz
15:02:37: CPU Speed: 2793MHz
15:02:37: Physical Memory:  8151MB Total, 2841MB Free
15:02:37: stepping id: 5, model 14, family 6, type 0, extmodel 0, extfamily 0, HTT 1, logical cores 4, total cores 4
15:02:37: monitor 1: pos={0, 0}, size={1920, 1080}
15:02:37: Windows Version: 6.1 Build 7601 S
15:02:37: Aero is Enabled
15:02:37: -------------------------------
15:02:37: OBS Modules:
15:02:37: Base Address     Module
15:02:37: 000000003F7D0000 OBS.exe
15:02:37: 00000000E44F0000 OBSApi.dll
15:02:37: 00000000F3CF0000 DShowPlugin.dll
15:02:37: 00000000F3CC0000 GraphicsCapture.dll
15:02:37: 00000000F3CA0000 NoiseGate.dll
15:02:37: ------------------------------------------
15:02:37: Adapter 1
15:02:37:   Video Adapter: AMD Radeon HD 7900 Series
15:02:37:   Video Adapter Dedicated Video Memory: 3195297792
15:02:37:   Video Adapter Shared System Memory: 4005068800
15:02:37: =====Stream Start: 2013-05-21, 15:02:37===============================================
15:02:37:   Multithreaded optimizations: On
15:02:37:   Base resolution: 1920x1080
15:02:37:   Output resolution: 1280x720
15:02:37: ------------------------------------------
15:02:37: Loading up D3D10...
15:02:37: Playback device Default
15:02:37: ------------------------------------------
15:02:37: Using desktop audio input: Kaiuttimet (Realtek High Definition Audio)
15:02:37: ------------------------------------------
15:02:37: Using auxilary audio input: FrontMic (Realtek High Definition Audio)
15:02:37: ------------------------------------------
15:02:37: Audio Encoding: AAC
15:02:37:     bitrate: 128
15:02:37: Using graphics capture
Warning -- GraphicsCaptureSource::BeginScene: OpenProcess failed, GetLastError = 5
15:02:37: ------------------------------------------
15:02:37: Video Encoding: x264
15:02:37:     fps: 30
15:02:37:     width: 1280, height: 720
15:02:37:     preset: ultrafast
15:02:37:     CBR: no
15:02:37:     CFR: no
15:02:37:     max bitrate: 3000
15:02:37:     buffer size: 3500
15:02:37:     quality: 7
15:02:37: ------------------------------------------
15:02:37: Capture window 0x00000000 invalid or changing, terminating capture
15:02:38: Using RTMP service: Twitch / Justin.tv
15:02:38:   Server selection: rtmp://live-ams.justin.tv/app
15:02:39: Total frames rendered: 72, number of frames that lagged: 0 (0.00%) (it's okay for some frames to lag)
15:02:39: SO_SNDBUF was at 8192
15:02:39: SO_SNDBUF is now 65536
15:02:39: RTMPPublisher::SocketLoop: Aborting due to loop exit
15:02:39: Number of times waited to send: 0, Waited for a total of 0 bytes
15:02:39: Number of b-frames dropped: 0 (-1.$%), Number of p-frames dropped: 0 (-1.$%), Total 0 (-1.$%)
15:02:39: =====Stream End: 2013-05-21, 15:02:39=================================================
15:02:50: 
15:02:50: Profiler results:
15:02:50: 
15:02:50: ==============================================================
15:02:50: frame - [100%] [avg time: 1.407 ms] [avg calls per frame: 1] [children: 72.4%] [unaccounted: 27.6%]
15:02:50: | scene->Preprocess - [0.0711%] [avg time: 0.001 ms] [avg calls per frame: 1]
15:02:50: | video encoding and uploading - [72.4%] [avg time: 1.018 ms] [avg calls per frame: 1] [children: 63.9%] [unaccounted: 8.46%]
15:02:50: | | CopyResource - [0.426%] [avg time: 0.006 ms] [avg calls per frame: 0]
15:02:50: | | conversion to 4:2:0 - [0.0711%] [avg time: 0.001 ms] [avg calls per frame: 0]
15:02:50: | | call to encoder - [63.3%] [avg time: 0.89 ms] [avg calls per frame: 0]
15:02:50: | | sending stuff out - [0.142%] [avg time: 0.002 ms] [avg calls per frame: 0]
15:02:50: ==============================================================
15:02:50:

Another thing is that stream is very blurry, but that is caused by ultrafast cpu setting i would imagine.
 
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