I wish it had worked better.... I remind you that my computer includes an Intel i7 3770k CPU and a Nvidia GTX-750Ti video card. I did a lot of tests with the same.xml file that contains 4 mixers. Each time I checked both with mpeg proxies and original DNxHD sources. All my tests were done with the X11 video driver only, because the X11-OpenGL driver has been crashing Cin-GG systemically for some time. I have installed libva-dev alone then libvdpau-dev alone then libva-dev and libvdpau-dev together In each case I launched Cin-GG by CIN_HW_DEV=vaapi ./cin or by CIN_HW_DEV=vdpau ./cin And I also compared by launching Cin-GG simply by./cin Only the mpeg proxys files showed a slight decrease in CPU usage (33%/48%) in combination with the installation of libva-dev and the launch by CIN_HW_DEV=vdpau./cin. If libvdpau-dev is also installed in addition to libva-dev, there is no impact on this result, but libva-dev is required to see this reduction. In any case, I have never observed any difference in CPU usage with source media in DNxHD. Pierre On 19-04-25 11 h 53, Sam wrote:
I think vdpau seems to be the right setting. I also have an Intel processor and an Nvidia graphics card. With vdpau I get the best results. The CPU is hardly used, but the FPS is almost always at maximum. Especially when I switch to X11-OpenGL, I only have 12% CPU load left. Subjectively I have the impression it plays a bit more smoothly. I notice the clearest difference at the fan of the computer. It is hardly noticeable with the hardware acceleration. Without hardware acceleration I get earache because the CPU fan gets extremely loud. Thanks to Andrea for the tip with libva-vdpau post-installation, that's how I got it to work.
Here are my tests:
X11
CIN_HW_DEV=off ./cin -> CPU 58% CIN_HW_DEV=vdpau ./cin -> CPU 32% CIN_HW_DEV=vaapi ./cin -> CPU 82%
X11-OpenGL
CIN_HW_DEV=off ./cin -> CPU 48% CIN_HW_DEV=vdpau ./cin -> CPU 12% :-) CIN_HW_DEV=vaapi ./cin -> CPU 80%
Sam