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30 lines
1.4 KiB
Text
30 lines
1.4 KiB
Text
Briefly, this is the VDPAU driver with VA-API/OpenGL backend.
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There are applications exists that can use VDPAU. Amongst them are
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Adobe Flash Player and Mplayer. They both can use VDPAU, but since
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there is no VDPAU available on Intel chips, they fall back to
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different drawing techniques. And while Mplayer can use XVideo
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extension to offload scaling to GPU, Flash Player can not and does
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all scaling in software. If there was VDPAU available, CPU usage
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could be significantly lower.
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VDPAU is not vendor-locked technology. Even official documentation
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mentions possibility of other drivers. They should be named as
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libvdpau_drivername.so.1 and placed where linker could find them.
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/usr/lib usually works fine. Which driver to use is determined by
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asking X server about current driver name or by using VDPAU_DRIVER
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environment variable.
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Here is one. Named libvdpau_va_gl.so.1, it uses OpenGL under the
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hood to accelerate drawing and scaling and VA-API (if available)
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to accelerate video decoding. For now VA-API is available on some
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Intel chips, and on some AMD video adapters with help of
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xvba-va-driver. OpenGL is available, you know, on systems with
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OpenGL available.
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Note:
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This SlackBuild creates scripts in /etc/profile.d for enabling
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the backend. This may conflicts with the dependent `libvdpau'
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package. Whilst `libvdpau' has the VDPAU_DRIVER variable disabled
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per default it may conflicts if you changed anything in there.
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