[MacPorts] #25730: mlt-0.5.6- build error

[MacPorts]

#25730: mlt-0.5.6- build error
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 Reporter:  julpub@…        |       Owner:  dan@…          
     Type:  defect          |      Status:  new            
 Priority:  Normal          |   Milestone:                 
Component:  ports           |     Version:  1.9.1          
 Keywords:                  |        Port:  mlt            
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Comment(by dan@…):

 I think this should only happen if you have an old version of ffmpeg
 installed - perhaps one not from macports.

 The MLT configure script uses the output of 'pkg-config --modversion
 libavcodec' to determine whether to use the old img_convert or the current
 swscale API. The img_convert API was removed in 2009, but I keep some old
 compatibility around for some commercial users. Run that command in a
 terminal and report the result here. It should be >= 52.21.0. If not, then
 you probably have more than one copy of ffmpeg installed on your system.

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Ticket URL: <http://trac.macports.org/ticket/25730#comment:5>
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