[FFmpeg-devel] [PATCH] configure: autodetect opencl

Michael Niedermayer michaelni at gmx.at
Mon Mar 2 12:27:55 CET 2015

On Mon, Mar 02, 2015 at 10:59:10AM +0000, Carl Eugen Hoyos wrote:
> Gupta, Maneesh <Maneesh.Gupta <at> amd.com> writes:
> > > > Similar to the way SDL is being autodetected, the 
> > > > attached patch proposes to autodetect OpenCL.
> > > 
> > > This cannot be done since the API is defined as 
> > > being not stable.
> > 
> > Sorry. I am not sure what you mean by this. Do you 
> > mean OpenCL API is not stable?
> No, FFmpeg's OpenCL API is not stable.

btw, to not just list problems but rather suggest potential solutions:
to make the FFmpeg OpenCL API stable, i think help in maintaining the
OpenCL code in FFmpeg is needed. The current maintainer seems not to
have enough time or interrest about ABI/API compatibility.
What is needed is to review and potentially change the OpenCL related
API/ABI used between libavutil and the other libs so that everyday
extensions/changes would not break that interface between the libs
then all the "non stable / experimental" notes can be removed and it
could be saftely be used by users and distributions

Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

Awnsering whenever a program halts or runs forever is
On a turing machine, in general impossible (turings halting problem).
On any real computer, always possible as a real computer has a finite number
of states N, and will either halt in less than N cycles or never halt.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: application/pgp-signature
Size: 181 bytes
Desc: Digital signature
URL: <https://ffmpeg.org/pipermail/ffmpeg-devel/attachments/20150302/33157993/attachment.asc>

More information about the ffmpeg-devel mailing list