[bug#36814] [PATCH 1/2] gnu: Add intel-vaapi-driver.

[Tobias Geerinckx-Rice via Guix-patches <guix-patches@gnu.org>]

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Marius,

Marius Bakke 写道：
> Tobias Geerinckx-Rice via Guix-patches <guix-patches@gnu.org> 
> writes:
>
>> * gnu/packages/video.scm (intel-vaapi-driver): New public 
>> variable.
>> ---
>>  gnu/packages/video.scm | 38 
>>  ++++++++++++++++++++++++++++++++++++++
>>  1 file changed, 38 insertions(+)
>>
>> diff --git a/gnu/packages/video.scm b/gnu/packages/video.scm
>> index 4b9e05edfe..f068c5df65 100644
>> --- a/gnu/packages/video.scm
>> +++ b/gnu/packages/video.scm
>> @@ -2695,6 +2695,44 @@ of modern, widely supported codecs.")
>>      ;; Combination under GPLv2.  See LICENSE.
>>      (license license:gpl2)))
>>  
>> +(define-public intel-vaapi-driver
>> +  (package
>> +    (name "intel-vaapi-driver")
>> +    (version "2.3.0")
>> +    (source
>> +     (origin
>> +       (method url-fetch)
>> +       (uri (string-append 
>> "https://github.com/intel/intel-vaapi-driver/"
>> +                           "releases/download/" version 
>> "/intel-vaapi-driver-"
>> +                           version ".tar.bz2"))
>> +       (sha256
>> +        (base32 
>> "1qyzxh3p8cw4fv8bz9zd4kc8hajlaps7xryzh6pad814n3m5sbjw"))))
>> +    (build-system gnu-build-system)
>> +    (native-inputs
>> +     `(("pkg-config" ,pkg-config)))
>> +    (inputs
>> +     `(("libdrm" ,libdrm)
>> +       ("libva" ,libva)
>> +       ("libx11" ,libx11)))
>> +    (arguments
>> +     `(#:phases
>> +       (modify-phases %standard-phases
>> +         (add-before 'configure 'set-up-directories
>> +           (lambda* (#:key outputs #:allow-other-keys)
>> +             (let ((out (assoc-ref outputs "out")))
>> +               (setenv "LIBVA_DRIVERS_PATH" (string-append out 
>> "/lib/dri"))
>> +               #t))))))
>
> Can this be passed in #:configure-flags?  What does it do, 
> anyway?  :-)
>
>> +    (home-page "https://01.org/linuxmedia/vaapi")
>> +    (synopsis "VA-API video acceleration driver for Intel GEN 
>> Graphics devices")
>> +    (description
>> +     "This is the @acronym{VA-API, Video Acceleration API} 
>> back end required for
>> +for hardware-accelerated video processing on Intel GEN 
>> Graphics devices
>> +supported by the i915 driver, such as integrated Intel HD 
>> Graphics.  It provides
>> +access to both hardware and shader functionality for faster 
>> encoding, decoding,
>> +and post-processing video formats like MPEG2, H.264/AVC, and 
>> VC-1.")
>
> I suppose we should limit this driver to i686-linux and 
> x86_64-linux only.

That is a very good point.

> LGTM, looking forward to try it!

Thanks!

T G-R

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