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using:hwaccel [2016/11/19 10:19] mean created |
using:hwaccel [2016/11/19 10:22] mean |
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- | == Enabling Hw Accel == | + | === Enabling Hw Accel === |
Assuming Avidemux has been compiled with support for it and your PC supports it, | Assuming Avidemux has been compiled with support for it and your PC supports it, | ||
you should enable both the HW decoding and matching display driver | you should enable both the HW decoding and matching display driver | ||
- | Both happens in preference | + | Both happes in preference |
For example, for windows we'll want to use dxva2 | For example, for windows we'll want to use dxva2 | ||
So Enable Dxva2 HW decoding | So Enable Dxva2 HW decoding | ||
+ | |||
{{:using:dxva1.png?200|}} | {{:using:dxva1.png?200|}} | ||
and use the matching display driver | and use the matching display driver | ||
+ | |||
{{:using:dxva2.png?200|}} | {{:using:dxva2.png?200|}} | ||
You can check it works by watching the two strings on the upper left | You can check it works by watching the two strings on the upper left | ||
+ | |||
{{:using:display.png?200|}} | {{:using:display.png?200|}} | ||
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+ | The rule is : | ||
+ | |||
+ | - Windows : DXVA2 | ||
+ | - Linux/Intel : LIBVA | ||
+ | - Linux/NVIDIA : VDPAU | ||
+ | |||
+ | Using wrapper is a bad idea. For example VDPAU on top of Intel video driver. | ||
+ | |||
+ | The current DXVA2 is not fully optimised, there is back and forth copy. It will be fixed in the D3D11 version. | ||