Question / Help "Frame Dropped" when using intel quick sync.

[tsGlow]

Hello.

Whenever I choose Intel quick sync h.264 encoder, a lot of frames dropped. here is a part of a latest log.

16:52:35.630: Output 'adv_stream': Total encoded frames: 443
16:52:35.630: Output 'adv_stream': Total drawn frames: 443
16:52:35.630: Output 'adv_stream': Number of dropped frames due to insufficient bandwidth/connection stalls: 198 (44.7%)

but Nvidia hvenc h.264 encoder works fine. but I need to use Intel quick sync encoder for a 60fps broadcasting without impacts on vga performance.

I'm using two monitors. Main one(connected to nvidia vga), and second one(connected intel onboard hd4600).

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System Information
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Time of this report: 4/15/2016, 17:05:01
Operating System: Windows 10 Pro 64-bit (10.0, Build 10586) (10586.th2_release_sec.160328-1908)
Processor: Intel(R) Core(TM) i5-4670 CPU @ 3.40GHz (4 CPUs), ~3.4GHz
Memory: 8192MB RAM
Available OS Memory: 8048MB RAM
Page File: 8846MB used, 3296MB available
DirectX Version: 12
DWM DPI Scaling: Disabled
Microsoft Graphics Hybrid: Not Supported
DxDiag Version: 10.00.10586.0000 64bit Unicode

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Display Devices
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Card name: NVIDIA GeForce GTX 660 Ti
Manufacturer: NVIDIA
Chip type: GeForce GTX 660 Ti
DAC type: Integrated RAMDAC
Device Type: Full Device
Device Key: Enum\PCI\VEN_10DE&DEV_1183&SUBSYS_28431462&REV_A1
Display Memory: 6011 MB
Dedicated Memory: 1988 MB
Shared Memory: 4023 MB
Current Mode: 2112 x 1188 (32 bit) (120Hz)
Monitor Name: Generic PnP Monitor

Card name: Intel(R) HD Graphics 4600
Manufacturer: Intel Corporation
Chip type: Intel(R) HD Graphics Family
DAC type: Internal
Device Type: Full Device
Device Key: Enum\PCI\VEN_8086&DEV_0412&SUBSYS_04121849&REV_06
Display Memory: 4136 MB
Dedicated Memory: 112 MB
Shared Memory: 4023 MB
Current Mode: 1050 x 1680 (32 bit) (60Hz)
Monitor Name: Generic PnP Monitor

 

[Suslik V]

Maybe Quick Sync cannot produce good CBR?

16:52:35.630: Output 'adv_stream': Number of dropped frames due to insufficient bandwidth/connection stalls: 198 (44.7%)
from your log means - bitrate was more than you can transmit.

 

[tsGlow]

Soved. It caused by twitch's bitrate limits of 3500kbps. Set encoding bitrates below that,Quick sync works fine.