[MacPorts] #47907: libvpx: update to 1.4.0

[MacPorts]

#47907: libvpx: update to 1.4.0
---------------------------+----------------------
  Reporter:  ryandesign@…  |      Owner:  devans@…
      Type:  update        |     Status:  assigned
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:
Resolution:                |   Keywords:
      Port:  libvpx        |
---------------------------+----------------------
Changes (by devans@…):

 * status:  new => assigned


Comment:

 Thanks for the heads up on this.  Although Google Code is being
 discountinued, it appears that libvpx is one of projects that Google is
 still supporting via Chromium and Google API.  There also is an official
 github mirror.

 New download URL is
 http://storage.googleapis.com/downloads.webmproject.org/releases/webm/

 Repository URL is https://chromium.googlesource.com/webm/webm-tools/
 [[BR]]
 Github mirror URL is https://github.com/webmproject/webm-tools/

 Update is in progress.

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Ticket URL: <https://trac.macports.org/ticket/47907#comment:1>
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