snapcrafters / obs-studio

This is a community-supported modified build of OBS Studio.
https://snapcraft.io/obs-studio
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[Bug]: VAAPI not working for OBS 30.1.1 #196

Open RAMChYLD opened 2 months ago

RAMChYLD commented 2 months ago

What happened?

OBS does not allow me to select FFMPEG VAAPI as encoder.

The following appears in the logs:

03:49:42.533: VAAPI: API version 1.20
03:49:45.051: FFmpeg VAAPI H264 encoding not supported
03:49:45.078: FFmpeg VAAPI HEVC encoding not supported

However on checking the system, VAAPI appears to be functioning correctly:

libva info: VA-API version 1.20.0
libva info: Trying to open /usr/lib/x86_64-linux-gnu/dri/r600_drv_video.so
libva info: Found init function __vaDriverInit_1_20
libva info: va_openDriver() returns 0
vainfo: VA-API version: 1.20 (libva 2.12.0)
vainfo: Driver version: Mesa Gallium driver 24.0.5-1ubuntu1 for KAVERI (radeonsi, , LLVM 17.0.6, DRM 2.50, 6.8.8-1-liquorix-amd64)
vainfo: Supported profile and entrypoints
      VAProfileMPEG2Simple            : VAEntrypointVLD
      VAProfileMPEG2Main              : VAEntrypointVLD
      VAProfileVC1Simple              : VAEntrypointVLD
      VAProfileVC1Main                : VAEntrypointVLD
      VAProfileVC1Advanced            : VAEntrypointVLD
      VAProfileH264ConstrainedBaseline: VAEntrypointVLD
      VAProfileH264Main               : VAEntrypointVLD
      VAProfileH264High               : VAEntrypointVLD
      VAProfileNone                   : VAEntrypointVideoProc

Further checking shows that FFMPEG is compiled with VAAPI support: DEV.LS h264 H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10 (decoders: h264 h264_v4l2m2m h264_qsv h264_cuvid) (encoders: libx264 libx264rgb h264_nvenc h264_qsv h264_v4l2m2m h264_vaapi) V....D h264_vaapi H.264/AVC (VAAPI) (codec h264)

Kindly advise if I'm missing anything or if I'm doing something wrong.

What should have happened?

The app should recognize that the FFMPEG version on the system supports VAAPI and allow me to pick VAAPI encoding.

Output of snap info $snap_name

name:      obs-studio
summary:   Free and open source software for live streaming and screen recording
publisher: Snapcrafters✪
store-url: https://snapcraft.io/obs-studio
license:   GPL-2.0
description: |
  OBS Studio is software designed for capturing, compositing, encoding, recording, and streaming
  video content, efficiently.

  **NOTE: This is a community-supported modified build of OBS Studio; please file issues on the
  Snapcrafters GitHub:  https://github.com/snapcrafters/obs-studio/issues**

  **Batteries included**

  The snap of OBS studio comes pre-loaded with some extra features:

    * Supports **nvenc (NVIDIA) and VA-API (AMD & Intel) accelerated video encoding**.
    * **Advanced Scene Switcher** plugin; an automated scene switcher
    * **Browser** plugin; CEF-based OBS Studio browser plugin
    * **Directory Watch Media** plugin; filter you can add to a media source to load the oldest or
    newest file in a directory.
    * **Dynamic Delay** plugin; filter for dynamic delaying a video source.
    * **Freeze Filter** plugin; freeze a source using a filter.
    * **GStreamer** plugins; feed GStreamer launch pipelines into OBS Studio and use GStreamer
    encoder elements.
    * **Move Transition** plugin; move sources to a new position during a scene transition.
    * **NDI** plugin; Network A/V via NewTek's NDI.
    * **RGB Levels** plugin; simple filter to adjust RGB levels.
    * **Source Switcher** plugin; to switch between a list of sources.
    * **StreamFX** plugin; collection modern effects filters and transitions.
    * **Text Pango** plugin; Provides a text source rendered using Pango with multi-language
    support, emoji support, vertical rendering and RTL support.
    * **Transition Matrix** plugin; customize Any -> One or One -> One scene transitions.
    * **Waveform** plugin; audio visualization using fftw.
    * **Websockets** plugin; remote-control OBS Studio through WebSockets.

  **Connecting Interfaces**

  For the best experience, you'll want to connect the following interfaces.

     sudo snap connect obs-studio:alsa
     sudo snap connect obs-studio:audio-record
     sudo snap connect obs-studio:avahi-control
     sudo snap connect obs-studio:camera
     sudo snap connect obs-studio:jack1
     sudo snap connect obs-studio:kernel-module-observe

  **NDI**

  If you want to use the NDI plugin you'll need to connect the Avahi Control interface.

     snap connect obs-studio:avahi-control

  **Virtual Camera**

  Starting with OBS 26.1.0, Virtual Camera support is integrated. Here's how to install and
  configure `v4l2loopback`:

     sudo snap connect obs-studio:kernel-module-observe
     sudo apt -y install v4l2loopback-dkms v4l2loopback-utils
     echo "options v4l2loopback devices=1 video_nr=13 card_label='OBS Virtual Camera'   
     exclusive_caps=1" | sudo tee /etc/modprobe.d/v4l2loopback.conf
     echo "v4l2loopback" | sudo tee /etc/modules-load.d/v4l2loopback.conf
     sudo modprobe -r v4l2loopback
     sudo modprobe v4l2loopback devices=1 video_nr=13 card_label='OBS Virtual Camera'
     exclusive_caps=1

  **NOTE!** Using `video_nr` greater than 64 will not work.

  **Removable Storage**

  To access content on external storage, connect to the removable-media plug:

     snap connect obs-studio:removable-media

  **3rd Party plugins**

  To install pre-compiled plugins, download and extract the plugin to
  `~/snap/obs-studio/current/.config/obs-studio/plugins/`.

  This is how the Input Overlay plugin looks when correctly installed:

     /home/username/snap/obs-studio/current/.config/obs-studio/plugins/
     └── input-overlay
         ├── bin
         │   └── 64bit
         │       └── input-overlay.so
         └── data
             └── locale
                 ├── de-DE.ini
                 ├── en-US.ini
                 └── ru-RU.ini

  If you want to use the Input Overlay plugin, you'll also need to connect the joystick interface:

     snap connect obs-studio:joystick

  **NOTE: This is a community-supported modified build of OBS Studio; please file issues on the
  Snapcrafters GitHub:  https://github.com/snapcrafters/obs-studio/issues**
commands:
  - obs-studio
snap-id:      6uLU2MJmBURfLNz4rmL4WT2CmtVULE2u
tracking:     latest/stable
refresh-date: today at 03:15 +08
channels:
  latest/stable:    30.1.1 2024-03-25 (1299) 603MB -
  latest/candidate: 30.1.2 2024-04-06 (1300) 603MB -
  latest/beta:      ↑                              
  latest/edge:      30.0.0 2023-12-22 (1296) 606MB -
installed:          30.1.1            (1299) 603MB -

Output of snap connections $snap_name

Interface                 Plug                                 Slot                            Notes
alsa                      obs-studio:alsa                      :alsa                           manual
audio-playback            obs-studio:audio-playback            :audio-playback                 -
audio-record              obs-studio:audio-record              :audio-record                   -
avahi-control             obs-studio:avahi-control             :avahi-control                  manual
browser-support           obs-studio:browser-support           :browser-support                -
camera                    obs-studio:camera                    :camera                         -
content[gnome-42-2204]    obs-studio:gnome-42-2204             gnome-42-2204:gnome-42-2204     -
content[gtk-3-themes]     obs-studio:gtk-3-themes              gtk-common-themes:gtk-3-themes  -
content[icon-themes]      obs-studio:icon-themes               gtk-common-themes:icon-themes   -
content[sound-themes]     obs-studio:sound-themes              gtk-common-themes:sound-themes  -
desktop                   obs-studio:desktop                   :desktop                        -
desktop-legacy            obs-studio:desktop-legacy            :desktop-legacy                 -
gsettings                 obs-studio:gsettings                 :gsettings                      -
hardware-observe          obs-studio:hardware-observe          -                               -
home                      obs-studio:home                      :home                           -
jack1                     obs-studio:jack1                     :jack1                          manual
joystick                  obs-studio:joystick                  :joystick                       manual
kernel-module-observe     obs-studio:kernel-module-observe     :kernel-module-observe          manual
network                   obs-studio:network                   :network                        -
network-bind              obs-studio:network-bind              :network-bind                   -
opengl                    obs-studio:opengl                    :opengl                         -
password-manager-service  obs-studio:password-manager-service  :password-manager-service       manual
process-control           obs-studio:process-control           :process-control                manual
pulseaudio                obs-studio:pulseaudio                :pulseaudio                     -
raw-usb                   obs-studio:raw-usb                   -                               -
removable-media           obs-studio:removable-media           :removable-media                manual
screen-inhibit-control    obs-studio:screen-inhibit-control    :screen-inhibit-control         -
screencast-legacy         obs-studio:screencast-legacy         -                               -
system-observe            obs-studio:system-observe            -                               -
unity7                    obs-studio:unity7                    :unity7                         -
upower-observe            obs-studio:upower-observe            :upower-observe                 -
wayland                   obs-studio:wayland                   :wayland                        -
x11                       obs-studio:x11                       :x11                            -

Output of snap version

snap    2.62+24.04build1
snapd   2.62+24.04build1
series  16
ubuntu  24.04
kernel  6.8.8-1-liquorix-amd64

Relevant log output

No response

Teminal output of app

debug: Found portal inhibitor
debug: Attempted path: ../../data/obs-studio/locale/en-US.ini
debug: Attempted path: ../../data/obs-studio/locale.ini
debug: Attempted path: ../../data/obs-studio/themes/Yami.qss
info: Command Line Arguments: --multi
info: Using EGL/X11
info: CPU Name: AMD FX-7600P Radeon R7, 12 Compute Cores 4C+8G
info: CPU Speed: 2195.862MHz
info: Physical Cores: 2, Logical Cores: 4
info: Physical Memory: 14923MB Total, 6810MB Free
info: Kernel Version: Linux 6.8.8-1-liquorix-amd64
info: Distribution: "Ubuntu Core" "22"
info: Desktop Environment: ubuntu:GNOME (ubuntu-xorg)
info: Session Type: x11
info: Window System: X11.0, Vendor: The X.Org Foundation, Version: 1.21.1
info: Qt Version: 6.2.4 (runtime), 6.2.4 (compiled)
info: Portable mode: false
info: OBS 30.0.2 (linux)
info: ---------------------------------
info: ---------------------------------
info: audio settings reset:
    samples per sec: 44100
    speakers:        2
    max buffering:   1044 milliseconds
    buffering type:  dynamically increasing
info: ---------------------------------
info: Initializing OpenGL...
info: Loading up OpenGL on adapter AMD KAVERI (, LLVM 15.0.7, DRM 2.50, 6.8.8-1-liquorix-amd64)
info: OpenGL loaded successfully, version 4.5 (Core Profile) Mesa 23.2.1-1ubuntu3.1~22.04.2, shading language 4.50
info: ---------------------------------
info: video settings reset:
    base resolution:   1920x1080
    output resolution: 1920x1080
    downscale filter:  Bicubic
    fps:               60/1
    format:            NV12
    YUV mode:          Rec. 601/Partial
info: NV12 texture support not available
info: P010 texture support not available
info: Audio monitoring device:
    name: Default
    id: default
info: ---------------------------------
info: [3D Effect] loaded version 0.1.0
info: [adv-ss] version: 1.24.2
info: [adv-ss] version: 267855fded058e22e682bf2888c822fb419d8b55
info: [adv-ss] curl loaded successfully
info: [adv-ss] found curl library
info: [adv-ss] attempting to load "/snap/obs-studio/1299/obs-plugins/64bit/adv-ss-plugins/advanced-scene-switcher-midi.so"
info: [adv-ss] successfully loaded "/snap/obs-studio/1299/obs-plugins/64bit/adv-ss-plugins/advanced-scene-switcher-midi.so"
info: [adv-ss] attempting to load "/snap/obs-studio/1299/obs-plugins/64bit/adv-ss-plugins/advanced-scene-switcher-opencv.so"
info: [adv-ss] successfully loaded "/snap/obs-studio/1299/obs-plugins/64bit/adv-ss-plugins/advanced-scene-switcher-opencv.so"
info: [adv-ss] attempting to load "/snap/obs-studio/1299/obs-plugins/64bit/adv-ss-plugins/advanced-scene-switcher-twitch.so"
info: [adv-ss] successfully loaded "/snap/obs-studio/1299/obs-plugins/64bit/adv-ss-plugins/advanced-scene-switcher-twitch.so"
warning: QCssParser::parseColorValue: Specified color without alpha value but alpha given: 'rgb 0,0,0,0'
warning: QCssParser::parseColorValue: Specified color without alpha value but alpha given: 'rgb 0,0,0,0'
warning: QCssParser::parseColorValue: Specified color without alpha value but alpha given: 'rgb 0,0,0,0'
warning: QCssParser::parseColorValue: Specified color without alpha value but alpha given: 'rgb 0,0,0,0'
warning: No AJA devices found, skipping loading AJA UI plugin
warning: Failed to initialize module 'aja-output-ui.so'
warning: No AJA devices found, skipping loading AJA plugin
warning: Failed to initialize module 'aja.so'
info: [Browser Transition] loaded version 0.1.2
warning: Failed to load 'en-US' text for module: 'decklink-captions.so'
warning: Failed to load 'en-US' text for module: 'decklink-output-ui.so'
libDeckLinkAPI.so: cannot open shared object file: No such file or directory
warning: A DeckLink iterator could not be created.  The DeckLink drivers may not be installed
warning: Failed to initialize module 'decklink.so'
info: [Device Switcher] loaded version 0.1.3
warning: QLayout: Attempting to add QLayout "" to DeviceSwitcherDock "", which already has a layout
info: [Directory watch media] loaded version 0.6.2
info: [Downstream Keyer] loaded version 0.3.0
info: [Dynamic Delay] loaded version 0.1.4
info: [Freeze Filter] loaded version 0.3.3
info: [Gradient Source] loaded version 0.3.2
info: [pipewire] Available captures:
info: [pipewire]     - Desktop capture
info: [pipewire]     - Window capture
info: [linux-vkcapture] plugin loaded successfully (version 1.4.3)
info: [markdown] loaded version 0.2.2
info: [Media Controls] loaded version 0.3.7
info: [Move Transition] loaded version 2.9.7
info: [Advanced Masks] loaded version 1.0.1
warning: Failed to load 'en-US' text for module: 'obs-audio-pan-filter.so'
info: [obs-audio-pan-filter] plugin loaded successfully (version 0.2.3)
info: [obs-backgroundremoval] Plugin loaded successfully (version 1.1.8)
info: [obs-backgroundremoval] Failed to open config file /home/leecy/snap/obs-studio/1299/.config/obs-studio/plugin_config/obs-backgroundremoval/config.ini
info: [obs-backgroundremoval] Failed to open config file /home/leecy/snap/obs-studio/1299/.config/obs-studio/plugin_config/obs-backgroundremoval/config.ini
info: [obs-backgroundremoval] Latest release is 1.1.13
info: [obs-browser]: Version 2.22.2
info: [obs-browser]: CEF Version 103.0.5060.134 (runtime), 103.0.0-5060-shared-textures.2594+g17f8588+chromium-103.0.5060.134 (compiled)
info: [Composite Blur] loaded version 1.1.0
info: [obs-dvd-screensaver] plugin loaded successfully (version 0.0.2)
info: [obs-face-tracker] registering face_tracker_filter_info (version 0.7.1)
info: [obs-face-tracker] ft_docks_init: Adding face tracker dock menu action=0x5936a967dd60
info: VAAPI: API version 1.20
info: FFmpeg VAAPI H264 encoding not supported
info: FFmpeg VAAPI HEVC encoding not supported
info: [obs-gstreamer] build: 7dd3e69, gst-runtime: 1.20.3
info: [obs-localvocal] plugin loaded successfully (version 0.0.8)
warning: QLayout: Attempting to add QLayout "" to QWidget "", which already has a layout
warning: Failed to load 'en-US' text for module: 'obs-multisource-effect.so'
info: [obs-multisource-effect] plugin loaded successfully (version 0.2.1)
warning: Failed to load 'en-US' text for module: 'obs-mute-filter.so'
info: [obs-mute-filter] plugin loaded successfully (version 0.2.2)
info: [obs-ndi] obs_module_load: you can haz obs-ndi (Version 4.13.0)
info: [obs-ndi] obs_module_load: Qt Version: 6.2.4 (runtime), 6.2.4 (compiled)
info: [obs-ndi] load_ndilib: Trying '/usr/lib/libndi.so.5'
info: [obs-ndi] load_ndilib: Found NDI library at '/usr/lib/libndi.so.5'
info: [obs-ndi] load_ndilib: NDI runtime loaded successfully
info: [obs-ndi] load_ndilib: NDIlib_v5_load found
info: [obs-ndi] obs_module_load: NDI library initialized successfully ('NDI SDK LINUX 09:57:02 Feb  2 2023 5.5.3')
info: [obs-ndi] preview_output_init('OBS Preview')
info: [obs-ndi] +ndi_output_create('OBS Preview'...)
info: [obs-ndi] ndi_output_update('OBS Preview'...)
info: [obs-ndi] -ndi_output_create('OBS Preview'...)
info: [obs-plugin-countdown] plugin loaded successfully (version 1.3.3)
info: [obs-rgb-levels-filter] plugin loaded successfully (version 1.0.2)
info: [obs-shaderfilter] loaded version 2.1.3
info: [obs-soundboard] Soundboard plugin version 1.1.0 is loaded
info: [Stroke Glow Shadow] loaded version 1.0.2
info: [obs-teleport] version: 0.6.6
warning: Failed to load 'en-US' text for module: 'obs-text-pthread.so'
info: [obs-text-pthread] plugin loaded successfully (version 2.0.2)
warning: Failed to load 'en-US' text for module: 'obs-urlsource.so'
info: [obs-urlsource] plugin loaded successfully (version 0.2.5)
info: [obs-vaapi] version: 0.4.1, gst-runtime: 1.20.3
info: [obs-websocket 4.9.1-compat] you can haz websockets (version 4.9.1-compat)
info: [obs-websocket 4.9.1-compat] qt version (compile-time): 6.2.4 ; qt version (run-time): 6.2.4
info: [obs-websocket 4.9.1-compat] [obs_module_load] Linked ASIO Version: 101201
info: [obs-websocket 4.9.1-compat] module loaded!
info: [obs-websocket] [obs_module_load] you can haz websockets (Version: 5.3.4 | RPC Version: 1)
info: [obs-websocket] [obs_module_load] Qt version (compile-time): 6.2.4 | Qt version (run-time): 6.2.4
info: [obs-websocket] [obs_module_load] Linked ASIO Version: 101801
info: [obs-websocket] [obs_module_load] Module loaded.
info: [pixel-art] plugin loaded successfully (version 0.0.4)
info: [Recursion Effect] loaded version 0.0.6
info: [Replay Source] loaded version 1.6.12
info: [Scene As Transition] loaded version 1.1.0
info: [Scene Notes Dock] loaded version 0.2.0
warning: QLayout: Attempting to add QLayout "" to SceneNotesDock "SceneNotesDock", which already has a layout
info: [Source Clone] loaded version 0.1.5
info: [Source Copy] loaded version 0.2.2
info: [Source Dock] loaded version 0.3.6
info: [Source Record] loaded version 0.3.2
info: [Source Switcher] loaded version 0.4.2
info: [TimeWarpScan] loaded version 0.1.7
info: [Transition Table] loaded version 0.2.7
info: [Vertical Canvas] loaded version 1.3.1
info: [vlc-video]: VLC 3.0.16 Vetinari found, VLC video source enabled
info: [phandasm_waveform]: Registered v1.7.0 x64
info: [phandasm_waveform]: Using CPU capabilities: AVX FMA3 SSE2
info: ---------------------------------
info:   Loaded Modules:
info:     waveform.so
info:     vlc-video.so
info:     vertical-canvas.so
info:     transition-table.so
info:     time-warp-scan.so
info:     text-freetype2.so
info:     source-switcher.so
info:     source-record.so
info:     source-dock.so
info:     source-copy.so
info:     source-clone.so
info:     scene-notes-dock.so
info:     scene-as-transition.so
info:     scale-to-sound.so
info:     rtmp-services.so
info:     replay-source.so
info:     recursion-effect.so
info:     pixel-art.so
info:     obs-x264.so
info:     obs-websocket.so
info:     obs-websocket-compat.so
info:     obs-vst.so
info:     obs-vintage-filter.so
info:     obs-vaapi.so
info:     obs-urlsource.so
info:     obs-transitions.so
info:     obs-text-pthread.so
info:     obs-teleport.so
info:     obs-stroke-glow-shadow.so
info:     obs-soundboard.so
info:     obs-shaderfilter.so
info:     obs-rgb-levels-filter.so
info:     obs-qsv11.so
info:     obs-plugin-countdown.so
info:     obs-outputs.so
info:     obs-ndi.so
info:     obs-mute-filter.so
info:     obs-multisource-effect.so
info:     obs-multi-rtmp.so
info:     obs-localvocal.so
info:     obs-libfdk.so
info:     obs-gstreamer.so
info:     obs-filters.so
info:     obs-ffmpeg.so
info:     obs-face-tracker.so
info:     obs-dvd-screensaver.so
info:     obs-composite-blur.so
info:     obs-command-source.so
info:     obs-browser.so
info:     obs-backgroundremoval.so
info:     obs-audio-pan-filter.so
info:     obs-advanced-masks.so
info:     move-transition.so
info:     media-controls.so
info:     markdown.so
info:     linux-vkcapture.so
info:     linux-v4l2.so
info:     linux-pulseaudio.so
info:     linux-pipewire.so
info:     linux-pipewire-audio.so
info:     linux-jack.so
info:     linux-capture.so
info:     image-source.so
info:     gradient-source.so
info:     frontend-tools.so
info:     freeze-filter.so
info:     dynamic-delay.so
info:     downstream-keyer.so
info:     dir-watch-media.so
info:     device-switcher.so
info:     decklink-output-ui.so
info:     decklink-captions.so
info:     browser-transition.so
info:     advanced-scene-switcher.so
info:     3d-effect.so
info: ---------------------------------
info: [Vertical Canvas] Loaded configuration file
warning: QLayout: Attempting to add QLayout "" to CanvasDock "contextContainer", which already has a layout
info: NV12 texture support not available
info: P010 texture support not available
warning: QMetaObject::connectSlotsByName: No matching signal for on_nextButton_clicked()
warning: QMetaObject::connectSlotsByName: No matching signal for on_previousButton_clicked()
warning: The object name of the added dock is empty or already used, a temporary one will be set to avoid conflicts
info: [obs-ndi] obs_module_post_load: ...
warning: QWidget::setTabOrder: 'first' and 'second' must be in the same window
info: ==== Startup complete ===============================================
info: [adv-ss] trying to reconnect to  in 10 seconds.
info: [adv-ss] reset transition behaviour to adjust active transition type
info: All scene data cleared
info: ------------------------------------------------
info: pulse-input: Server name: 'PulseAudio (on PipeWire 1.0.5) 15.0.0'
info: pulse-input: Audio format: s32le, 48000 Hz, 2 channels
info: pulse-input: Started recording from 'alsa_output.pci-0000_00_14.2.7.analog-stereo.monitor' (default)
info: [Loaded global audio device]: 'Desktop Audio'
info: pulse-input: Server name: 'PulseAudio (on PipeWire 1.0.5) 15.0.0'
info: pulse-input: Audio format: s32le, 48000 Hz, 2 channels
info: pulse-input: Started recording from 'alsa_input.pci-0000_00_14.2.7.analog-stereo' (default)
info: [Loaded global audio device]: 'Mic/Aux'
info: Switched to scene 'Scene'
info: [Media Source 'Soundboard']: settings:
    input:                   
    input_format:            (null)
    speed:                   100
    is_looping:              no
    is_linear_alpha:         no
    is_hw_decoding:          no
    is_clear_on_media_end:   yes
    restart_on_activate:     yes
    close_when_inactive:     no
    full_decode:             no
    ffmpeg_options:          
info: [obs-face-tracker] save_load_ft_docks saving=0
info: [adv-ss] trying to reconnect to  in 10 seconds.
info: ------------------------------------------------
info: Loaded scenes:
info: - scene 'Scene':
info: - scene 'Vertical Scene':
info: ------------------------------------------------
info: [obs-websocket 4.9.1-compat] WSServer::start: Not locked to IPv4 bindings
info: [obs-websocket 4.9.1-compat] server started successfully on port 4444
info: [obs-websocket 4.9.1-compat] IO thread started.
warning: QLayout: Attempting to add QLayout "" to DeviceWidget "Desktop Audio", which already has a layout
warning: QLayout: Attempting to add QLayout "" to DeviceWidget "Mic/Aux", which already has a layout
info: adding 46 milliseconds of audio buffering, total audio buffering is now 46 milliseconds (source: Desktop Audio)