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1. cinvro 2012年11月01日 at 17:45

   It helps a lot. Do you know how to utilize ffmpeg writing videos under XCode? I can’t make the VideoWriter work with the OpenCV 2.4.2. I hope you can help me out with this if you know the solution.

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   • enekochan 2012年11月01日 at 17:57

     Sorry but I’ve never used ffmpeg to write videos. You should look at the oficial documentation for an example or something like that.

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2. OpenCV 2.4.2 with FFmpeg Support on OS X » 午夜跑者在日落大道 - pingback on 2012年11月01日 at 20:04
3. Jon Bennett 2012年12月14日 at 01:24

   FFMPEG on MAC patch outlined above is still required for Open CV 2.4.3 as well.

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4. Spikcell 2013年02月16日 at 20:25

   GREAT STUFF!

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5. Jerry 2013年03月08日 at 20:09

   Thanks for the tutorial .. I have successfully installed and have a working simple opencv videocapture application. The capture happens from a file, but I have been unsuccessfully in deploying this application onto a different computer the one without opencv or ffmpeg. More info the question here: http://stackoverflow.com/questions/15299691/opencv-ffmpeg-video-capture-filename-avi-crashes-on-a-non-development-machi

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   • enekochan 2013年03月08日 at 20:48

     If it works in your development computer but does not in another computer it should be a problem in the libraries. You should try installing the exact same versions of OpenCV, ffmpeg and Qt in the other computer. I don’t know anything about otool and the deployment proccess of apps with it. Probably it’s a problem in the paths.

     By the way, in your code you resize the image to 604×480 and I’m pretty sure you want to resize it to 640×480.

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     • Jerry 2013年03月08日 at 21:29

       Hi enekochan,..Yes, if I install those libraries on the other system it works fine, its only when I try and package an application this happens. I have been going throught the app bundle for the last 8hours to make sure each of the dependency is correctly linked. Looks like a bug in the opencv ffmpeg, or the qt end.

       And yes it was suppose to 640 x 480…thanks for pointing it out.

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6. JJ 2013年04月11日 at 21:21

   Hey thanks for the tutorial, I’ve been looking for something like this. I’m having a problem when i make faad.

   ld: warning: ignoring file ../common/mp4ff/libmp4ff.a, file was built for archive which is not the architecture being linked (i386): ../common/mp4ff/libmp4ff.a
   Undefined symbols for architecture i386:
   “_main”, referenced from:
   start in crt1.10.6.o
   ld: symbol(s) not found for architecture i386
   collect2: ld returned 1 exit status
   lipo: can’t open input file: /var/tmp//ccJylCwD.out (No such file or directory)
   make[2]: *** [faad] Error 1
   make[1]: *** [all-recursive] Error 1

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7. Vincent 2013年05月01日 at 16:09

   Thanks,

   Still usefull one year later

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8. Seng 2013年06月04日 at 08:46

   Thanks!
   I can’t believe that the more “official” opencv web pages don’t mention any of this. One has to google to find such information.

   You are a life saver man!

   cheers

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