Software » Video Players » QMPlay2 24.06.16

Changes in QMPlay2 24.06.16:
- show less connection errors from Radio Browser,
- fix choosing desired video stream,
- fix colorspace for ARIB STD-B67,
- improve recording status,
- update translations,

Hardware acceleration
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). Hardware acceleration is disabled by default, but you can enable it in "Settings->Playback settings":

move hardware accelerated decoder on decoders list to the top,
apply settings.
Hardware acceleration important information:
CUVID, DXVA2, VDPAU and VA-API use OpenGL video output, so OpenGL features are available, but CPU filters won't work.
CUVID. D3D11VA and VA-API use Vulkan video output, so Vulkan features are available, but CPU filters won't work.
DXVA2 requires "WGL_NV_DX_interop" extension.
DXVA2 and VDPAU don't work with Vulkan.
VDPAU, VA-API, CUVID and DXVA2 have its own deinterlacing filters. Their settings are available in "Settings->Video filters".
VA-API on Vulkan uses its own deinterlacing filter only on Intel drivers.
H.264 lossless movies (CRF 0 or QP 0) might not be properly decoded via VDPAU and VA-API.
VideoToolBox doesn't support deinterlacing.
CUVID + Vulkan might not work properly on RTX devices.
VA-API + OpenGL information:
VA-API + OpenGL uses EGL for OpenGL context creation. On X11 QMPlay2 tries to detect if EGL can be used, but the detection can fail. In this case you can try do it manually: export QT_XCB_GL_INTEGRATION=xcb_glx and run QMPlay2 from command line. If everything is working properly, you can export this variable globally. This doesn't work on NVIDIA drivers. In case of multiple GPUs installed in system VA-API requires to use the same device as OpenGL. QMPlay2 detects it automatically, but if the detection fails, try to do it manually, e.g.: export QMPLAY2_EGL_CARD_FILE_PATH=/dev/dri/card1 and run QMPlay2 from command line. If everything is working properly, you can export this variable globally.

Deinterlacing
Video interlacing is automatically detected by QMPlay2. Go to "Settings->Video filters" for more options. If you have fast CPU (or low video resolution), you can use "Yadif 2x" deinterlacing filter for better quality.

You can enable deinterlacing filter on non-interlaced video if necessary (some interlaced videos may not have interlacing data), but remember to revert this setting on any other video! Otherwise the video quality and performance will be worse!

Hardware-accelerated video decoding uses its own video filtering, so the CPU deinterlacing method (e.g. "Yadif 2x") does nothing in this case. Of course you can adjust other deinterlacing settings in case of hardware acceleration.

Vulkan renderer has Yadif deinterlacing filter which is used by default for CPU decoded videos. You can change this behavior in Vulkan renderer settings. Moreover, Yadif Vulkan filter is used for hardware-decoded videos.

Chroma plane if pixel format is not YUV420 when XVideo or DirectDraw is used as video output may not be properly deinterlaced.

Hidden features
Audio balance
Right click on volume slider and select "Split channels".

Last.fm scrobbling
Go to "Options->Modules settings" and click "Extensions" on the list. Find "LastFM" group box, select "Scrobble", type your login and password and then press "Apply".

Control files
Empty files in share directory (on Windows it is a directory with QMPlay2.exe):

portable - runs QMPlay2 in portable mode (settings are stored in applications directory),
noautoupdates - disables auto-updates at first run.
Still images
Go to "Options->settings" and check "Read and display still images".

Custom user agent
You can specify a CustomUserAgent in QMPlay2.ini file in General section.

Single instance
You can force single instance for QMPlay2: set "Allow only one instance" in "Settings->General settings".

Multimedia keys
In Windows and macOS, multimedia keys should work automatically.

In Linux/BSD, you must associate keys with commands:

using QMPlay2 binary, see: QMPlay2 -h,
using MPRIS2:
Toggle play/pause: dbus-send --print-reply --dest=org.mpris.MediaPlayer2.QMPlay2 /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.PlayPause.
Next: dbus-send --print-reply --dest=org.mpris.MediaPlayer2.QMPlay2 /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Next
Prev: dbus-send --print-reply --dest=org.mpris.MediaPlayer2.QMPlay2 /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Previous
Stop: dbus-send --print-reply --dest=org.mpris.MediaPlayer2.QMPlay2 /org/mpris/MediaPlayer2 org.mpris.MediaPlayer2.Player.Stop
Installation from sources