[MacPorts] #65623: ffmpeg: update to 6.x

[MacPorts]

#65623: ffmpeg: update to 6.x
-------------------------+----------------------
  Reporter:  janngobble  |      Owner:  mascguy
      Type:  update      |     Status:  assigned
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.7.2
Resolution:              |   Keywords:
      Port:  ffmpeg      |
-------------------------+----------------------

Comment (by mascguy):

 Replying to [comment:10 mohd-akram]:
 > What are the issues with updating to FFmpeg 6? Perhaps there should be
 an ffmpeg4 port that lives in libexec for ports that require an old
 version, and otherwise update to 6.

 Upstream has made breaking API changes, such that we can't simply update
 the default `ffmpeg` port to version 5.x or 6.x. But yes, the longer-term
 plan is to create an `ffmpeg4` port, and rename `ffmpeg-upstream` to
 `ffmpeg6`. Followed by updating all dependents to build with the
 appropriate one.

 But that's going to take some time.

-- 
Ticket URL: <https://trac.macports.org/ticket/65623#comment:11>
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