[FFmpeg-devel] [PATCH] configure: properly require libx264 if enabled

[Jan Ekström]

On Sun, Jul 24, 2022 at 2:04 PM Jan Ekström <jeebjp at gmail.com> wrote:
>
> On Sun, Jul 24, 2022 at 1:12 PM Marvin Scholz <epirat07 at gmail.com> wrote:
> >
> > When libx264 can not be found even though it is enabled, it should error
> > out properly instead of silently disabling it.
> > ---
> >  configure | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/configure b/configure
> > index 46f6490a64..6629d14099 100755
> > --- a/configure
> > +++ b/configure
> > @@ -6673,7 +6673,7 @@ enabled libvpx            && {
> >  enabled libwebp           && {
> >      enabled libwebp_encoder      && require_pkg_config libwebp "libwebp >= 0.2.0" webp/encode.h WebPGetEncoderVersion
> >      enabled libwebp_anim_encoder && check_pkg_config libwebp_anim_encoder "libwebpmux >= 0.4.0" webp/mux.h WebPAnimEncoderOptionsInit; }
> > -enabled libx264           && check_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode &&
> > +enabled libx264           && require_pkg_config libx264 x264 "stdint.h x264.h" x264_encoder_encode &&
>
> Looking at the commit message in
> dd5a0302d5286e66ca03a57770537d5afa4c7775 , support for non-pkg-config
> usage was removed then, so require_pkg_config (which dies if the check
> doesn't succeed) seems like the correct option to utilize.
>
> LGTM

Verified that this now properly works with and without x264 pc file
being available (as in, "ERROR: x264 not found using pkg-config"
without it, and properly enabling the feature if it is available).

Applied as 564d7946de56155d1c42165a8b561fcf5028cbbc .

I think this might make sense to back-port onto release/5.1 as
dd5a0302d5286e66ca03a57770537d5afa4c7775 is on that branch as well?

Jan