[FFmpeg-devel] [PATCH] Add HW H.264 and HEVC encoding for AMD GPUs based on AMF SDK

Mark Thompson sw at jkqxz.net
Tue Nov 28 01:24:45 EET 2017

On 27/11/17 22:35, Mironov, Mikhail wrote:
>>> -----Original Message-----
>>> From: ffmpeg-devel [mailto:ffmpeg-devel-bounces at ffmpeg.org] On Behalf
>>> Of Mark Thompson
>>> Sent: November 27, 2017 3:11 PM
>>> To: FFmpeg development discussions and patches <ffmpeg-
>>> devel at ffmpeg.org>
>>> Subject: [FFmpeg-devel] [PATCH] Add HW H.264 and HEVC encoding for
>> AMD
>>> GPUs based on AMF SDK
>>> From: mmironov <mikhail.mironov at amd.com>
>>> Requires AMF headers for at least version 1.4.2 (older versions do not
>>> support building with C).
>>> ---
>>> Uses upstream headers from <https://github.com/GPUOpen-
>>> LibrariesAndSDKs/AMF/tree/master/amf/public/include>.  I couldn't find
>>> an official install method so I've assumed that the AMF headers are
>>> under an AMF/ prefix (they have rather generic names, so they need
>>> something).  Just copying the two directories from the source path to
>>> /usr/local/include/AMF or similar is sufficient.
>>> I've also assumed that the features which don't yet exist upstream
>>> (H.264 CONSTRAINED profiles) will appear in a future version 1.5.0.
>>> There might be more version checking needed, but I'm not sure (newer
>>> version / older header should work because of the version
>>> initialisation, while older version / newer header fails at that maybe?).
>>> The OS checks are removed, it builds fine on Linux if you have the headers.
>> The public headers from github do not have several fixes that were done in
>> the customized header.
>> I could cherry-pick and push them but I did not test this for a while assuming
>> that the custom header is used.
> Pushed.

Thank you!

Is there an official way to detect a finer version there?  (The version number is still 1.4.4.)  If not, we can just look for one of the just-added enum constants for the configure test.

- Mark

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