[bug#34050] Aw: bug#34050: Acknowledgement ([PATCH] gnu: Add libaom and activate AV1 support in ffmpeg.)

[Arne Babenhauserheide]

There’s a problem with my patch: ffmpeg-3.4 inherits the values of ffmpeg but 
does not support the --enable-aom option.

How can I filter it?

This is the definition:

(define-public ffmpeg-3.4
  (package
    (inherit ffmpeg)
    (version "3.4.5")
    (source (origin
             (method url-fetch)
             (uri (string-append "https://ffmpeg.org/releases/ffmpeg-";
                                 version ".tar.xz"))
             (sha256
              (base32
               "0b59qk5wpc5ksiha76jbhb859g5gxa4w0k6afh3kgvgajiivs73l"))))))

Best wishes,
Arne