In case of multiple GPUs installed in system VA-API requires to use the same device as OpenGL. If everything is working properly, you can export this variable globally. In this case you can try do it manually: export QT_XCB_GL_INTEGRATION=xcb_glx and run QMPlay2 from command line. On X11 QMPlay2 tries to detect if EGL can be used, but the detection can fail. VA-API + OpenGL uses EGL for OpenGL context creation.
VideoToolBox doesn't support deinterlacing. H.264 lossless movies (CRF 0 or QP 0) might not be properly decoded via VDPAU and VA-API. VA-API on Vulkan uses its own deinterlacing filter only on Intel drivers. Their settings are available in "Settings->Video filters". VDPAU, VA-API, CUVID and DXVA2 have its own deinterlacing filters. DXVA2 and VDPAU don't work with Vulkan. DXVA2 requires "WGL_NV_DX_interop" extension. D3D11VA and VA-API use Vulkan video output, so Vulkan features are available, but CPU filters won't work. CUVID, DXVA2, VDPAU and VA-API use OpenGL video output, so OpenGL features are available, but CPU filters won't work. Hardware acceleration important information: move hardware accelerated decoder on decoders list to the top,. Hardware acceleration is disabled by default, but you can enable it in "Settings->Playback settings": QMPlay2 supports hardware video decoding: CUVID (NVIDIA only), DXVA2 (Windows Vista and higher), D3D11VA (Vulkan, Windows 8 and higher) VDPAU/VA-API (X11 for VDPAU, Linux/BSD only) and VideoToolBox (macOS only). Otherwise devices which were added may not be visible! Hardware acceleration asoundrc you should also append:ĭefaults.namehint.!showall on to the configuration file. If you are using your own ALSA configuration nf or. You can also enable it from the menu: "Playback->Video filters->Spherical view". YouTube spherical videos by pressing "Ctrl+3". QMPlay2 supports spherical view on OpenGL and Vulkan video outputs. Vulkan might not switch to full screen exclusive on some configurations or obsolete drivers. Make sure that antivirus or firewall doesn't block "yt-dlp" and doesn't block executing external applications!. You can remove downloaded "yt-dlp" from settings. 
YouTube videos don't work without external "yt-dlp" software, so QMPlay2 will download it automatically.
If the chosen quality can't be found on YouTube content, QMPlay2 will try using the next entry on the quality list. Click on the "Settings" icon on the left of the search bar, change the order of audio and/or video quality priorities and apply changes. You can change the default audio and video quality of YouTube contents.
Run the following command: emerge -ask media-video/qmplay2. Sudo dnf groupupdate multimedia -setop="install_weak_deps=False" -exclude=PackageKit-gstreamer-plugin Sudo dnf install $(rpm -E %fedora).noarch.rpm $(rpm -E %fedora).noarch.rpm
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