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Tasklist

FS#59743 - [ffmpeg] add nvdec support

Attached to Project: Arch Linux
Opened by Jon Wilson (wilson) - Tuesday, 21 August 2018, 21:59 GMT
Last edited by Maxime Gauduin (Alucryd) - Monday, 27 August 2018, 09:16 GMT
Task Type Feature Request
Category Packages: Extra
Status Closed
Assigned To Maxime Gauduin (Alucryd)
Architecture All
Severity Low
Priority Normal
Reported Version
Due in Version Undecided
Due Date Undecided
Percent Complete 100%
Votes 0
Private No

Details

Description:

ffmpeg already has nvenc support turned on. Please also include nvdec.
Required for hardware decoding of h265 10-bit video on nvidia hardware.

nvdec is a newer implementation of CUVID/CUDA decoding, which uses the FFmpeg
decoders for file parsing. Experimental, is known not to correctly check
whether decoding is supported by the hardware at all. Deinterlacing
is not supported. Since this uses FFmpeg's codec parsers, it is expected that
this generally causes fewer issues than cuda.


Additional info:
* ffmpeg-4.0.2-2
   ffmpeg-enable-nvdec.patch (0.3 KiB)
This task depends upon

Closed by  Maxime Gauduin (Alucryd)
Monday, 27 August 2018, 09:16 GMT
Reason for closing:  Not a bug
Additional comments about closing:  Still I'll add --enable-nvdec in the next version for good measure, even if it's not necessary.
Comment by Maxime Gauduin (Alucryd) - Monday, 27 August 2018, 09:15 GMT
nvdec is already implicitly enabled, the codec is still called cuvid, you can verify that with 'ffmpeg -hwaccels'.

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