player [-ao null] [-vo qt|gl|d2d|gdi|xv] [-vd "dxva[;cuda[;vaapi[;vda[;ffmpeg]]]]"] [--ffmpeg-log] [-f url|path|pipe:]
To disable audio output, add -ao null
Choose a render engine with -vo option(default is OpenGL). For example, in windows that support Direct2D, you can run
player -vo d2d filename
To select decoder, use -vd
option. Value can be dxva, cuda, vaapi and ffmpeg
, or a list separated by ; in priority order. For example:
player -vd "dxva;cuda;ffmpeg" filename
will use dxva if dxva can decode, use cuda if dxva failed to decode, and use ffmpeg if cuda can not decode.
read wiki for more information: https://github.com/wang-bin/QtAV/wiki/_pages