Question / Help Low framerate when using game capture

H

Handmade.Mercury

New Member
Hello, when I use game capture, my framerate is low and the video is choppy. The frames aren't *dropped*, just the framerate appears to be low. Using monitor or window capture works fine.

Here is my log file from a game capture session:
Code: 
Open Broadcaster Software v0.473b (magnificant test build 11) - 64bit (　^ω^)
-------------------------------
CPU Name: Intel(R) Core(TM) i5-2500K CPU @ 3.30GHz
CPU Speed: 3300MHz
Physical Memory:  8085MB Total, 4501MB Free
stepping id: 7, model 10, family 6, type 0, extmodel 1, extfamily 0, HTT 1, logical cores 4, total cores 4
monitor 1: pos={0, 0}, size={1920, 1080}
monitor 2: pos={1920, 249}, size={1600, 900}
Windows Version: 6.2 Build 9200 
Aero is Enabled
------------------------------------------
Adapter 1
  Video Adapter: NVIDIA GeForce GTX 570
  Video Adapter Dedicated Video Memory: 1293352960
  Video Adapter Shared System Memory: 2952343552
------------------------------------------
Adapter 2
  Video Adapter: Intel(R) HD Graphics 3000
  Video Adapter Dedicated Video Memory: 33554432
  Video Adapter Shared System Memory: 1711276032
------------------------------------------
Adapter 3
  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: 1920x1080
  Output resolution: 960x540
------------------------------------------
Loading up D3D10...
Playback device Default
------------------------------------------
Using desktop audio input: Speakers (ASUS Xonar DX Audio Device)
------------------------------------------
Using auxilary audio input: Microphone (USB Audio CODEC )
------------------------------------------
Audio Encoding: AAC
    bitrate: 192
Using graphics capture
x264: using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
x264: profile High, level 3.1
------------------------------------------
Video Encoding: x264
    fps: 30
    width: 960, height: 540
    preset: veryfast
    CBR: no
    CFR: no
    max bitrate: 1800
    buffer size: 1800
    quality: 7
------------------------------------------
SharedTexCapture hooked
Using RTMP service: Twitch / Justin.tv
  Server selection: rtmp://live-iad-backup.justin.tv/app
SO_SNDBUF was at 65536
SO_SNDBUF is now 65536
SharedTexCapture hooked
SharedTexCapture hooked
Total frames rendered: 8006, number of frames that lagged: 7 (0.09%) (it's okay for some frames to lag)
Total duplicated frames: 52 (0.65%)
RTMPPublisher::SocketLoop: Aborting due to bStopping
Number of times waited to send: 0, Waited for a total of 0 bytes
Number of b-frames dropped: 0 (0%), Number of p-frames dropped: 0 (0%), Total 0 (0%)
x264: frame I:57    Avg QP:22.48  size: 23855
x264: frame P:3786  Avg QP:25.65  size:  4035
x264: frame B:4135  Avg QP:26.89  size:   476
x264: consecutive B-frames: 25.2% 15.1%  6.2% 53.5%
x264: mb I  I16..4: 23.5% 51.1% 25.4%
x264: mb P  I16..4:  4.7%  5.6%  0.7%  P16..4: 16.8%  7.5%  2.8%  0.0%  0.0%    skip:61.8%
x264: mb B  I16..4:  0.3%  0.2%  0.0%  B16..8:  5.1%  1.4%  0.1%  direct: 0.5%  skip:92.4%  L0:39.9% L1:51.3% BI: 8.8%
x264: 8x8 transform intra:50.4% inter:30.5%
x264: coded y,uvDC,uvAC intra: 36.5% 18.9% 3.1% inter: 3.6% 1.4% 0.0%
x264: i16 v,h,dc,p: 45% 28% 19%  9%
x264: i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 26% 19% 33%  3%  3%  4%  4%  3%  4%
x264: i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 33% 22% 16%  4%  5%  5%  5%  4%  5%
x264: i8c dc,h,v,p: 69% 14% 16%  1%
x264: Weighted P-Frames: Y:1.8% UV:0.5%
x264: kb/s:559.65
=====Stream End=======================================================================

Profiler results:

==============================================================
frame - [100%] [avg time: 2.614 ms] [avg calls per frame: 1] [children: 97.9%] [unaccounted: 2.14%]
| scene->Preprocess - [0.115%] [avg time: 0.003 ms] [avg calls per frame: 1]
| video encoding and uploading - [97.7%] [avg time: 2.555 ms] [avg calls per frame: 1] [children: 23.1%] [unaccounted: 74.7%]
| | CopyResource - [0.88%] [avg time: 0.023 ms] [avg calls per frame: 0]
| | conversion to 4:2:0 - [0.268%] [avg time: 0.007 ms] [avg calls per frame: 0]
| | call to encoder - [21.3%] [avg time: 0.558 ms] [avg calls per frame: 0]
| | sending stuff out - [0.574%] [avg time: 0.015 ms] [avg calls per frame: 0]
==============================================================
Also, here is a video demonstrating the differences. Jump to 13:00 to see game capture, and jump to 22:00 to see window capture: http://www.twitch.tv/handmademercury/b/376534555
 
H

Handmade.Mercury

New Member
I hate to bump, but... bump. I didn't see anything in the rules about bumping, but if I'm wrong, feel free to lock/delete.

I should also add that I don't recall having this problem in past versions. I don't always update in time, so I can't say with certainty which versions I used that didn't have problems, but it was before beta, I believe.

I haven't installed any new hardware or anything like that. I think I might try older nVidia drivers to see if that's the cause. I'll report back with my findings.
 
H

Handmade.Mercury

New Member
Jim said:
Does the same happen on 0.472b stable build?
Click to expand...

I just had a chance to try it, and it seems to work fine on the latest stable build. I thought I remembered the past few versions giving me the same problem, but I guess I was mistaken! Sorry for the misinformation. Either way, the latest test build still gives me this issue.
 
You must log in or register to reply here.
Top