[FFmpeg-devel] [PATCH 3/3] configure: check avisynth header version

[Stephen Hutchinson]

On 2/8/22 6:02 AM, Stephen Hutchinson wrote:
> The headers from version 3.7.1 are needed in order to support
> parsing of frame properties. avs/version.h has been generated
> as part of the AviSynth+ build process for a long time, but was
> never installed with the includes until version 3.7.1a. Checking
> for the presence of avs/version.h might have been sufficient,
> but a version check mechanism might be useful in the future.
> 
> This does not change the version compatibility with the library
> itself; previous 3.x versions of AviSynth+ as well as AviSynth 2.6
> can still be used with the demuxer.
> 
> Signed-off-by: Stephen Hutchinson <qyot27 at gmail.com>
> ---
>   configure | 4 +++-
>   1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/configure b/configure
> index 493493b4c5..544d341b49 100755
> --- a/configure
> +++ b/configure
> @@ -6508,7 +6508,9 @@ for func in $COMPLEX_FUNCS; do
>   done
>   
>   # these are off by default, so fail if requested and not available
> -enabled avisynth          && require_headers "avisynth/avisynth_c.h"
> +enabled avisynth          && { require_headers "avisynth/avisynth_c.h avisynth/avs/version.h" &&
> +                               { test_cpp_condition avisynth/avs/version.h "AVS_MAJOR_VER >= 3 && AVS_MINOR_VER >= 7 && AVS_BUGFIX_VER >= 1 || AVS_MAJOR_VER >= 3 && AVS_MINOR_VER > 7 || AVS_MAJOR_VER > 3" ||
> +                                 die "ERROR: AviSynth+ header version must be >= 3.7.1"; } }
>   enabled cuda_nvcc         && { check_nvcc cuda_nvcc || die "ERROR: failed checking for nvcc."; }
>   enabled chromaprint       && require chromaprint chromaprint.h chromaprint_get_version -lchromaprint
>   enabled decklink          && { require_headers DeckLinkAPI.h &&

Pushed.