Question / Help Choppy/Stuttering stream with the 0.47 alpha build

[thelastkryptonian]

To start things off I just wanted to say that I love OBS and have been using it since the 0.46 build i think. When i was using 0.46 I had no issues what so ever, I mean the stream was flawless. Now with the 0.47 alpha build, whenever i watch my stream it stutters big time and is really choppy. I wanted to know is there a way to downgrade to a previous build? Or can someone help me with this problem. I'll post the log file below.

Open Broadcaster Software v0.47a - 32bit (´・ω・｀)
-------------------------------
CPU Name: Intel(R) Core(TM) i7-3930K CPU @ 3.20GHz
CPU Speed: 3200MHz
Physical Memory:  1023MB Total, 1023MB Free
stepping id: 7, model 13, family 6, type 0, extmodel 1, extfamily 0, HTT 1, logical cores 12, total cores 6
Windows Version: 6.1 Build 7600 
Aero is Enabled
------------------------------------------
Adapter 1
  Video Adapter: NVIDIA GeForce GTX 680
  Video Adapter Dedicated Video Memory: 2091581440
  Video Adapter Shared System Memory: 2147479552
------------------------------------------
Adapter 2
  Video Adapter: Microsoft Basic Render Driver
  Video Adapter Dedicated Video Memory: 0
  Video Adapter Shared System Memory: 268435456
=====Stream Start=====================================================================
  Multithreaded optimizations: On
  Base resolution: 1280x720
  Output resolution: 1280x720
------------------------------------------
Loading up D3D10...
Playback device {0.0.0.00000000}.{547c5b40-0ee1-47e9-87a1-e29c0bacb47f}
------------------------------------------
Using desktop audio input: Digital Audio (S/PDIF) (2- High Definition Audio Device)
------------------------------------------
Using auxilary audio input: Headset Microphone (ASTRO Wireless Transmitter )
------------------------------------------
Audio Encoding: AAC
    bitrate: 320
Using graphics capture
------------------------------------------
Video Encoding: x264
    fps: 60
    width: 1280, height: 720
    preset: medium
    CBR: no
    CFR: no
    max bitrate: 1750
    buffer size: 1750
    quality: 10
------------------------------------------
Syncing audio to video time
SharedTexCapture hooked
Total frames rendered: 10556, number of frames that lagged: 3 (0.03%) (it's okay for some frames to lag)
=====Stream End=======================================================================
=====Stream Start=====================================================================
  Multithreaded optimizations: On
  Base resolution: 1280x720
  Output resolution: 1280x720
------------------------------------------
Loading up D3D10...
Playback device {0.0.0.00000000}.{547c5b40-0ee1-47e9-87a1-e29c0bacb47f}
------------------------------------------
Using desktop audio input: Digital Audio (S/PDIF) (2- High Definition Audio Device)
------------------------------------------
Using auxilary audio input: Headset Microphone (ASTRO Wireless Transmitter )
------------------------------------------
Audio Encoding: AAC
    bitrate: 320
Using graphics capture
------------------------------------------
Video Encoding: x264
    fps: 60
    width: 1280, height: 720
    preset: medium
    CBR: no
    CFR: no
    max bitrate: 1750
    buffer size: 1750
    quality: 10
------------------------------------------
Syncing audio to video time
SharedTexCapture hooked
Using RTMP service: Twitch / Justin.tv
  Server selection: rtmp://live-iad.justin.tv/app
SO_SNDBUF already at 65536
bufferTime: 1431, outputRateWindowTime: 1000, dropThreshold: 1931
Total frames rendered: 182808, number of frames that lagged: 13 (0.01%) (it's okay for some frames to lag)
RTMPPublisher::SocketLoop: Aborting due to bStopping
Number of b-frames dropped: 0 (0%), Number of p-frames dropped: 0 (0%), Total 0 (0%)
=====Stream End=======================================================================

Profiler results:

==============================================================
frame - [100%] [avg time: 2.538 ms] [avg calls per frame: 1] [children: 90.6%] [unaccounted: 9.38%]
| scene->Preprocess - [0.118%] [avg time: 0.003 ms] [avg calls per frame: 1]
| video encoding and uploading - [90.5%] [avg time: 2.297 ms] [avg calls per frame: 1] [children: 33.9%] [unaccounted: 56.6%]
| | CopyResource - [0.906%] [avg time: 0.023 ms] [avg calls per frame: 0]
| | conversion to 4:2:0 - [0.197%] [avg time: 0.005 ms] [avg calls per frame: 0]
| | call to encoder - [32.6%] [avg time: 0.827 ms] [avg calls per frame: 0]
| | sending stuff out - [0.236%] [avg time: 0.006 ms] [avg calls per frame: 0]
==============================================================

 

[Krazy]

If you are trying to watch your stream while streaming, you will see choppiness. There is nothing in the log file that indicates you are dropping frames, and the 13 frames you lagged would not be nearly enough to be noticeable.

I do notice you are using Medium preset, perhaps go back to faster and see if the problem still persists. Even if your CPU usage is low, there are lots more things going on with slower presets than just CPU usage that can slow down your system, even on one like the 3930k. However, I'm not entirely sure this is your problem.

 

[thelastkryptonian]

I went back and change to the faster preset and that seemed to work. Its strange because on the last build i could stream using medium with no choppiness on the stream. Oh well, thanks for the help Krazy :)!