[FFmpeg-devel] [PATCH] avfilter: add libvmaf_cuda

[Kyle Swanson]

Hi,

On Mon, Sep 18, 2023 at 12:41 PM Timo Rothenpieler
<timo at rothenpieler.org> wrote:
> On 18.09.2023 21:21, Marvin Scholz wrote:
> > I am far from an expert with the configure script but won't that cause --enable-libvmaf to fail when
> > libvmaf is built without cuda support? Which seems undesirable to me…
>
> Yeah, hence my suggested change of
>
> > enabled libvmaf_cuda      && require_pkg_config libvmaf_cuda "libvmaf >= 2.0.0" libvmaf_cuda.h vmaf_cuda_state_init

This only works if I add `libvmaf_cuda` to EXTERNAL_LIBRARY_LIST,
otherwise running `./configure --enable-libvmaf-cuda` will fail with
`Unknown option "--enable-libvmaf-cuda".` I'm not sure that's the
right thing to do given there is no such thing as `libvmaf_cuda`. If
you are aware of a different way of handling this, let me know. Most
of the other libraries we link with optional configurations (see
libopus, libvpx, ...) seem to have the pattern I used in this previous
patch [0], which does avoid the problem pointed out by Marvin.

Thanks,
Kyle

[0] http://ffmpeg.org/pipermail/ffmpeg-devel/2023-September/314409.html