[MacPorts] #42863: Enable VDA (Video Decode Acceleration) in ffmpeg + ffmpeg-devel if supported by OS

[MacPorts]

#42863: Enable VDA (Video Decode Acceleration) in ffmpeg + ffmpeg-devel if
supported by OS
----------------------------------+----------------------
  Reporter:  ionic@…              |      Owner:  devans@…
      Type:  enhancement          |     Status:  assigned
  Priority:  Normal               |  Milestone:
 Component:  ports                |    Version:  2.2.1
Resolution:                       |   Keywords:  haspatch
      Port:  ffmpeg ffmpeg-devel  |
----------------------------------+----------------------

Comment (by ionic@…):

 If you're feeling advanturous, fetch http://mpv.io/ and configure + build
 + install it with waf, then run mpv -vo opengl-hq -hwdec vda
 yourfavoriteH264video.mkv to see VDA in action (and inspect mpv's output
 to make sure VDA is actually being used:

 {{{
 Trying to use hardware decoding.
 Selected video codec: H.264 / AVC / MPEG-4 AVC / MPEG-4 part 10
 [lavc:h264]
 Selected audio codec: ATSC A/52A (AC-3) [lavc:ac3]
 AO: [coreaudio] 48000Hz stereo 2ch float
 AV: 00:00:00 / 00:41:17 (0%) A-V:  0.000 Cache: 99%
 VO: [opengl-hq] 1280x720 => 1280x720 vda <<<
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/42863#comment:2>
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