[MacPorts] #50694: ffmpeg: issues updating to version 3.0

[MacPorts]

#50694: ffmpeg: issues updating to version 3.0
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  Reporter:  devans@…                            |      Owner:  devans@…
      Type:  defect                              |     Status:  new
  Priority:  Normal                              |  Milestone:
 Component:  ports                               |    Version:
Resolution:                                      |   Keywords:
      Port:  baresip cmus ffmpegthumbs FreeRDP   |
  goldendict gpac libdlna libextractor           |
  libquicktime-devel mlt moc OpenSceneGraph      |
  pHash py27-bob-io-video transcode VLC wxsvg    |
  xine-lib xmms2 yorick-av                       |
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Comment (by rjvbertin@…):

 [OT]
 Heh, have you ever looked at code using some of Apple's older APIs, like
 the QuickTime API? That API is full of simple calls of which you need a
 whole series in order to achieve certain operations that would be
 functional building blocks in an OO approach. Most all of those functions
 return NO_ERR (0) in case of success, so unless you like to write insanely
 nested code or to repeat each and every cleanup action at each checkpoint,
 you'll find yourself using a `goto bail;` ...

 I don't think there's anything particularly wrong with that either (a good
 optimiser would probably generate a very similar control flow).
 [/OT]

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Ticket URL: <https://trac.macports.org/ticket/50694#comment:27>
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