Question / Help OBS output and preview is too sharp/grainy

brynldrn · Jan 13, 2020

Hello there, this is my first time using OBS paired with a capture card. I'm using ezcap266/ezcap u3 for testing it the results I got are not that good. In this studio preview screenshot you can see that the quality is kinda sharp and the colors are not that great:

This quality also reflects on the output file.
I would like to know what should I do to fix the color and the sharpness/grains? Thank you!
Log file: https://obsproject.com/logs/n-ob1N2hn2XJvzsl

Bash:

13:36:22.086: CPU Name: Intel(R) Core(TM) i3-6100U CPU @ 2.30GHz
13:36:22.086: CPU Speed: 2304MHz
13:36:22.086: Physical Cores: 2, Logical Cores: 4
13:36:22.086: Physical Memory: 8065MB Total, 4457MB Free
13:36:22.086: Windows Version: 10.0 Build 18362 (revision: 30; 64-bit)
13:36:22.086: Running as administrator: false
13:36:22.086: Aero is Enabled (Aero is always on for windows 8 and above)
13:36:22.086: Windows 10 Gaming Features:
13:36:22.086:     Game Bar: On
13:36:22.086:     Game DVR: On
13:36:22.086:     Game DVR Background Recording: Off
13:36:22.088: Sec. Software Status:
13:36:22.090:     Windows Defender Antivirus: enabled (AV)
13:36:22.090:     Windows Firewall: enabled (FW)
13:36:22.091: Current Date/Time: 2020-01-13, 13:36:22
13:36:22.091: Browser Hardware Acceleration: true
13:36:22.091: Portable mode: false
13:36:22.458: OBS 24.0.3 (64-bit, windows)
13:36:22.458: ---------------------------------
13:36:22.480: ---------------------------------
13:36:22.480: audio settings reset:
13:36:22.480:     samples per sec: 48000
13:36:22.480:     speakers:        2
13:36:22.481: ---------------------------------
13:36:22.481: Initializing D3D11...
13:36:22.481: Available Video Adapters:
13:36:22.484:     Adapter 0: NVIDIA GeForce 940MX
13:36:22.484:       Dedicated VRAM: 2107703296
13:36:22.484:       Shared VRAM:    4228855808
13:36:22.484:       output 0: pos={0, 0}, size={1366, 768}, attached=true
13:36:22.484:     Adapter 1: Intel(R) HD Graphics 520
13:36:22.484:       Dedicated VRAM: 134217728
13:36:22.484:       Shared VRAM:    4228855808
13:36:22.487: Loading up D3D11 on adapter NVIDIA GeForce 940MX (0)
13:36:22.903: D3D11 loaded successfully, feature level used: b000
13:36:22.903: D3D11 GPU priority setup failed (not admin?)
13:36:23.584: ---------------------------------
13:36:23.584: video settings reset:
13:36:23.584:     base resolution:   1366x768
13:36:23.584:     output resolution: 1364x768
13:36:23.584:     downscale filter:  Lanczos
13:36:23.584:     fps:               60/1
13:36:23.584:     format:            NV12
13:36:23.584:     YUV mode:          601/Partial
13:36:23.584: NV12 texture support enabled
13:36:23.586: Audio monitoring device:
13:36:23.586:     name: Default
13:36:23.586:     id: default
13:36:23.586: ---------------------------------
13:36:23.589: [CoreAudio encoder]: CoreAudio AAC encoder not installed on the system or couldn't be loaded
13:36:23.590: Failed to load 'en-US' text for module: 'decklink-ouput-ui.dll'
13:36:23.722: [AMF] AMF Test failed due to one or more errors.
13:36:23.722: Failed to initialize module 'enc-amf.dll'
13:36:23.747: [obs-browser]: Version 2.7.15
13:36:23.773: Couldn't find VLC installation, VLC video source disabled
13:36:23.778: No blackmagic support
13:36:23.783: ---------------------------------
13:36:23.783:   Loaded Modules:
13:36:23.783:     win-wasapi.dll
13:36:23.783:     win-mf.dll
13:36:23.783:     win-ivcam.dll
13:36:23.783:     win-dshow.dll
13:36:23.783:     win-decklink.dll
13:36:23.783:     win-capture.dll
13:36:23.783:     vlc-video.dll
13:36:23.783:     text-freetype2.dll
13:36:23.783:     rtmp-services.dll
13:36:23.783:     obs-x264.dll
13:36:23.783:     obs-vst.dll
13:36:23.783:     obs-transitions.dll
13:36:23.783:     obs-text.dll
13:36:23.783:     obs-qsv11.dll
13:36:23.783:     obs-outputs.dll
13:36:23.783:     obs-filters.dll
13:36:23.783:     obs-ffmpeg.dll
13:36:23.783:     obs-browser.dll
13:36:23.783:     image-source.dll
13:36:23.783:     frontend-tools.dll
13:36:23.783:     enc-amf.dll
13:36:23.783:     decklink-ouput-ui.dll
13:36:23.783:     coreaudio-encoder.dll
13:36:23.783: ---------------------------------
13:36:23.784: ==== Startup complete ===============================================
13:36:23.784: Service '' not found
13:36:23.788: All scene data cleared
13:36:23.788: ------------------------------------------------
13:36:23.971: WASAPI: Device 'Speakers (2- Realtek High Definition Audio)' initialized
13:36:24.015: WASAPI: Device 'Digital Audio Interface (ezcap U3 capture)' initialized
13:36:24.037: WASAPI: Device 'Digital Audio Interface (ezcap U3 capture)' initialized
13:36:24.038: [window-capture: 'Window Capture'] update settings:
13:36:24.038:     executable: GameBar.exe
13:36:24.065: adding 42 milliseconds of audio buffering, total audio buffering is now 42 milliseconds (source: Audio Input Capture)
13:36:24.065:
13:36:24.158: ---------------------------------
13:36:24.158: [DShow Device: 'Video Capture Device'] settings updated:
13:36:24.158:     video device: ezcap U3 capture
13:36:24.158:     video path: \\?\usb#vid_1bcf&pid_2c99&mi_00#6&25e558e0&0&0000#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\global
13:36:24.158:     resolution: 1280x720
13:36:24.158:     fps: 60.00 (interval: 166666)
13:36:24.158:     format: YUY2
13:36:24.215:     using video device audio: no
13:36:24.215:     audio device: Digital Audio Interface (ezcap U3 capture)
13:36:24.216:     sample rate: 0
13:36:24.216:     channels: 0
13:36:24.216:     audio type: WaveOut
13:36:24.746: Switched to scene 'Scene'
13:36:24.749: ------------------------------------------------
13:36:24.749: Loaded scenes:
13:36:24.749: - scene 'Scene':
13:36:24.755:     - source: 'Window Capture' (window_capture)
13:36:24.755:     - source: 'Game Capture' (game_capture)
13:36:24.755:     - source: 'Audio Input Capture' (wasapi_input_capture)
13:36:24.755:     - source: 'Video Capture Device' (dshow_input)
13:36:24.755: ------------------------------------------------

carlmmii · Jan 13, 2020

Go to your EZcap's properties (double click it, or right-click->properties)

Set your Resolution/FPS Type to Custom if it isn't already, and set your 1280x720 and 60fps.

Do you have any options for your Video Format other than YUY2? This looks to be your main culprit -- the color shifting you're seeing on text is definitely due to the chroma subsampling of the YUY2 compression. If you have the option for something like RGB, or any 444 compression schemes, that would be a lot better.

As far as the sharpening goes, I'm not sure whether that's entirely being caused by the colorspace compression, or if there's something else going on in addition.

brynldrn · Jan 13, 2020

carlmmii said:
Go to your EZcap's properties (double click it, or right-click->properties)

Set your Resolution/FPS Type to Custom if it isn't already, and set your 1280x720 and 60fps.

Do you have any options for your Video Format other than YUY2? This looks to be your main culprit -- the color shifting you're seeing on text is definitely due to the chroma subsampling of the YUY2 compression. If you have the option for something like RGB, or any 444 compression schemes, that would be a lot better.

As far as the sharpening goes, I'm not sure whether that's entirely being caused by the colorspace compression, or if there's something else going on in addition.

Hey there! Thanks for noticing my post and providing instant instructions. I've tried what you said but it's still the same. Currently it has YUY2 and MJPEG available.

Log: https://obsproject.com/logs/WwZwZNRHz7E1UDGv

Question / Help OBS output and preview is too sharp/grainy

brynldrn

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carlmmii

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brynldrn

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