[MacPorts] #51377: ffmpeg variant for decklink

[MacPorts]

#51377: ffmpeg variant for decklink
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  Reporter:  soldano@…    |      Owner:  devans@…
      Type:  enhancement  |     Status:  assigned
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:               |   Keywords:
      Port:  ffmpeg       |
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Comment (by devans@…):

 I'm going to pass on this request for now.

 In order to install support for declink, the BlackMagic DecLink SDK, must
 be installed.  Normally this would be implemented as a separate port under
 MacPorts and become a dependency for ffmpeg.

 Unfortunately, although the DecLink SDK is nominally opensource, its
 availability for download is restricted by BlackMagic.  In order to
 download the SDK, BlackMagic requires the downloader to register their
 email address and formally agree to their licensing agreement.  This
 doesn't restrict an individual from downloading the SDK and building
 ffmpeg with declink support for his own use, but makes it impractical to
 construct a port that can download the SDK on demand as MacPorts normally
 does.

 When I get some more time, I'll try building a version of ffmpeg with
 declink support using a manual download and, if successful, will publish a
 HOWTO on the MacPorts wiki so you can do it for yourself.  I don't have
 access to the BlackMagic hardware so I'll need your help with testing.

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Ticket URL: <https://trac.macports.org/ticket/51377#comment:7>
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