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• Android 6.0 UnsatisfiedLinkError : dlopen failed has text relocations

  20 décembre 2016, par Jerikc XIONG

  There are many links to discuss the issue :

  libavcodec.so : has text relocations

  https://github.com/wseemann/FFmpegMediaPlayer/issues/64

  I’m confused that i got the error on some devices found by fabric, but not the whole Android 6.0.

  I use the ijkplayer :

  • ijk version : 0.4.4.1
  • ffmepg version : N-82274-g34aeb5d
  • ndk version : r10e
  • computer info : macOS Sierra, version 10.12.1

  How to explain that ?

• How to use NSProcessInfo's operatingSystemVersion property in place of gestaltSystemVersionMinor and gestaltSystemVersionBugFix

  28 octobre 2016, par Michael Whiteacre

  Newbie here, but longtime frequenter of this essential resource.

  Using :
  MacBook Pro (Retina, 13-inch, Early 2015).
  Processor : 3.1 GHz Intel Core i7
  Memory : 16 GB 1867 MHz DDR3
  Running Yosemite 10.10.5

  I’m attempting to compile my own Perian- and FFmpeg-based FFusion.component (for Quicktime), for 10.11 using Xcode 7.2.1, and in this relatively simple project, as in others, am trying to move away from Gestalt. The original FFusion-RJVB.xcodeproj I’m employing is Xcode-3.2 compatible.

  I have yet to find a clear, definitive solution to what must appear a painfully simple problem to you all. Here is the Gestalt version :
  `

  #if TARGET_OS_MAC
  
  static int GetSystemMinorVersion()
  
  {
  
      static SInt32 minorVersion = -1;
  
      if (minorVersion == -1)
  
          Gestalt(gestaltSystemVersionMinor, &minorVersion);
  
  
  
      return minorVersion;
  
  }
  
  
  
  static int GetSystemMicroVersion()
  
  {
  
      static SInt32 microVersion = -1;
  
      if (microVersion == -1)
  
          Gestalt(gestaltSystemVersionBugFix, &microVersion);
  
  
  
      return microVersion;
  
  }
  
  #endif

  `
  I’ve tried what seems like endless variations of NSProcessInfo i.e.

  ([[NSProcessInfo processInfo] respondsToSelector:@selector(operatingSystemVersion)])

  but I’m afraid I’m not formatting it correctly to achieve my ends. It just hasn’t ’clicked’ in my head yet, so Im hoping someone can give me a push when I see the difference between the gestalt version, my stumbling attempts, and the correct way.

  Many thanks.

• How to capture a timed screen recording on a Mac with ffmpeg

  28 septembre 2016, par wetjosh

  I’m on a Mac with MacOS Sierra installed. I’ve installed ffmpeg with homebrew. I list my devices via :

  ffmpeg -f avfoundation -list_devices true -i ""

  which returns :

  [AVFoundation input device @ 0x7fc2de40e840] AVFoundation video devices:
  
  [AVFoundation input device @ 0x7fc2de40e840] [0] FaceTime HD Camera
  
  [AVFoundation input device @ 0x7fc2de40e840] [1] Capture screen 0
  
  [AVFoundation input device @ 0x7fc2de40e840] AVFoundation audio devices:
  
  [AVFoundation input device @ 0x7fc2de40e840] [0] Built-in Microphone

  I don’t need audio so I start my 5 second screen recording via :

  ffmpeg -f avfoundation -t '5' -i '1' test.mov

  It creates an mov file in the working directory but doesn’t stop after 5 seconds. In fact, I can’t even stop the recording as it suggests by pressing ’q’. Ctl-C doesn’t work either, and I am left with force quitting via Activity Monitor. I’ve tried this same command but using device 0 (FaceTime camera) and it stops after 5 seconds.

  If someone can solve that riddle, my next question is how can I watch the newly created file in quicktime (I’m thinking I’ll need to encode or decode or something) because even the FaceTime video file would not open in QuickTime. It just says "The document could not be opened". It does, however, open with VLC.

  UPDATE : I’ve tried this on an older OS (Yosemite) and got the same results (thought it might be the new OS that broke it).