[FFmpeg-trac] #3958(avcodec:open): libvpx symbol check missing in configure, build-time error

[FFmpeg]

#3958: libvpx symbol check missing in configure, build-time error
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             Reporter:  saste        |                    Owner:
                 Type:  defect       |                   Status:  open
             Priority:  important    |                Component:  avcodec
              Version:  git-master   |               Resolution:
             Keywords:  libvpx       |               Blocked By:
  regression                         |  Reproduced by developer:  1
             Blocking:               |
Analyzed by developer:  1            |
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Comment (by jamal):

 Replying to [comment:2 benoit]:
 > I don't know how this could be checked without using the configure
 script.
 > Here is an attempt to do it by adding an 'experimental' libvpx
 configuration:
 libvpx 1.2.0 is vp8 only.
 Both VPX_IMG_FMT_I422 and VPX_IMG_FMT_I444 are available exclusively for
 vp9 starting with libvpx 1.3.0, the latest stable release, so it's not
 really "experimental".

 A preprocessor check in libvpxdec.c should be enough to fix this. No need
 for extra configure checks.

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Ticket URL: <https://trac.ffmpeg.org/ticket/3958#comment:4>
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