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• How to run one script after another in Apple Script

  19 juillet 2015, par mskx4

  I’m trying with Apple Script to run three different scripts that would alow me to :

  1. Convert a purchased m4a file into an "anonymized" m4a file and extract its artwork (with ffmpeg)
  2. Attach the artwork to the file previously converted, since the converted file won’t maintain its artwork (with AtomicParsley)
  3. Remove the artwork from his path

  I don’t have any kind of programming knowledge, I’ve collected different script from the web and tried to make an app that could do these 3 simple task :

  on open argv
  
     set paths to ""
  
     repeat with f in argv
  
         set paths to paths & quoted form of POSIX path of f & " "
  
     end repeat
  
     tell application "Terminal"
  
          do script "for f in " & paths & "; do ffmpeg -i \"$f\" -acodec copy -y \"$f\" output.jpg; done"
  
          activate
  
          do script "for f in " & paths & "; do AtomicParsley \"$f\" --artwork output.jpg; done"
  
          activate
  
          do script "rm output. jpg"
  
          activate
  
     end tell
  
   end open

  The problem is that, when I drop a file on the app, it opens three terminal windows at once and it runs the three tasks in the same time, with the obvious result that the conversion fails : the first task overwrites the input file, and the second script should use the output of the first one as its input file. So I need the three scripts to be executed successively, one after another.

• avformat/asfdec_f : Parse ECC byte according to spec

  22 juillet 2015, par Michael Niedermayer

  avformat/asfdec_f : Parse ECC byte according to spec
  This should not change anything as the spec requires specific values
  
  for the fields, which where handled previously.
  Ask for samples when these values do not match
  Signed-off-by : Michael Niedermayer <michael@niedermayer.cc>
  

  • [DH] libavformat/asfdec_f.c

• UnsatisfiedLinkError using JavaCV maven dependency in Gradle on Android

  28 juillet 2015, par Michael Garner

  I am getting this error when trying to call the start() method of an instance of FFmpegFrameGrabber :

  java.lang.UnsatisfiedLinkError: org.bytedeco.javacpp.avutil
  
      at java.lang.Class.classForName(Native Method)
  
      at java.lang.Class.forName(Class.java:309)
  
      at org.bytedeco.javacpp.Loader.load(Loader.java:390)
  
      at org.bytedeco.javacpp.Loader.load(Loader.java:358)
  
      at org.bytedeco.javacpp.avformat$AVFormatContext.<clinit>(avformat.java:2539)
  
      at org.bytedeco.javacv.FFmpegFrameGrabber.startUnsafe(FFmpegFrameGrabber.java:383)
  
      at org.bytedeco.javacv.FFmpegFrameGrabber.start(FFmpegFrameGrabber.java:377)
  
  </clinit>

  These are the dependencies I am referring to per the READMES for the projects javacpp and javacv :

  compile group: 'org.bytedeco', name: 'javacpp', version: '1.0'
  
  compile group: 'org.bytedeco', name: 'javacv', version: '1.0'

  I did not add any .so files to the project, but I was expecting those to come with the dependencies. When I tried adding them previously I started getting gradle errors for duplicate files so I assume that they come with the dependencies.

  I think what is happening is that it can’t load the .so files for whatever reason, but I don’t know how to solve this problem.

  I have tried setting the systemProperty for dependencies mentioned in the GitHub READMEs like so :

  task execute(type: JavaExec) {
  
      systemProperty "platform.dependencies", true
  
  }

  It doesn’t help as written.

  Why is this error seen and what can be done to handle it ?

  Any guidance on this issue would be greatly appreciated. The overall goal is to use the FFmpegFrameGrabber to crop video the user has taken with their device. I am open to all solutions.