[MacPorts] #35073: ffmpeg, ffmpeg-devel missing textual subtitle rendering filters

[MacPorts]

#35073: ffmpeg, ffmpeg-devel missing textual subtitle rendering filters
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 Reporter:  paul@…              |       Owner:  macports-tickets@…                   
     Type:  enhancement         |      Status:  new                                  
 Priority:  Normal              |   Milestone:                                       
Component:  ports               |     Version:  2.1.1                                
 Keywords:  subtitles captions  |        Port:  ffmpeg ffmpeg-devel                  
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 Currently drawtext filter is not available in ffmpeg and ffmpeg-devel.  It
 is necessary for subtitle rendering.  To enable it would require adding a
 dependency to libfreetype.

 Similarly, ass filter is also not available.  It is necessary for SSA/ASS
 subtitle rendering.  To enable it would require adding a dependency to
 libass.

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Ticket URL: <https://trac.macports.org/ticket/35073>
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