When I try streaming to twitch.tv with OBS at 2000 kb/s, I end up hovering around 700 - 1100 kb/s upload speed, resulting in half of my frames being dropped. Using the same settings and bitrate with Xsplit, transmitting to the same primary LA server, I have no problems uploading 2000 kb/s and I don't drop any frames. I've tried switching to a number of different servers in the west and in Texas, but the up speed in OBS is uniformly worse than xsplit. Any thoughts on what's causing this / how I can fix it?
Code:
Open Broadcaster Software v0.448a - 32bit (´・ω・｀)
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CPU Name: AMD Phenom(tm) II X4 955 Processor
CPU Speed: 3210MHz
Physical Memory: 4094MB Total, 1356MB Free
stepping id: 2, model 4, family 15, type 0, extmodel 8, extfamily 0, HTT 1, logical cores 4, total cores 4
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Adapter 1
Video Adapter: ATI Radeon HD 5800 Series
Video Adapeter Dedicated Video Memory: 1066237952
Video Adapeter Shared System Memory: 1878093824
Send Buffer Size: 1460
=====Stream Start=====================================================================
Multithreaded optimizations: On
Base resolution: 1920x1080
Output resolution: 1280x720
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Loading up D3D10...
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Using auxilary audio input: Microphone (SoundMAX Integrated Digital HD Audio)
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Audio Encoding: AAC
bitrate: 96
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Video Encoding: x264
fps: 30
width: 1280, height: 720
quality: 10
preset: veryfast
i444: no
max bitrate: 2000
buffer size: 2000
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using shared texture capture
Total frames rendered: 7983, number of frames that lagged: 3 (0.04%) (it's okay for some frames to lag)
Number of b-frames dropped: 3819, Number of p-frames dropped: 0
=====Stream End=======================================================================
Profiler results:
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frame - [100%] [avg time: 5.977 ms] [avg calls per frame: 1] [children: 86.8%] [unaccounted: 13.2%]
| scene->Preprocess - [0.0335%] [avg time: 0.002 ms] [avg calls per frame: 1]
| video encoding and uploading - [86.8%] [avg time: 5.187 ms] [avg calls per frame: 1] [children: 32%] [unaccounted: 54.7%]
| | CopyResource - [0.335%] [avg time: 0.02 ms] [avg calls per frame: 0]
| | conversion to 4:2:0 - [0.184%] [avg time: 0.011 ms] [avg calls per frame: 0]
| | call to encoder - [31.5%] [avg time: 1.884 ms] [avg calls per frame: 0]
==============================================================