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• Export GPS Points from Dash Cam with FFMPEG ?

  31 octobre 2016, par Steve

  I have a Garmin Dash Cam 35 that outputs an MP4 that appears to have the GPS data I need encoded in the MP4. I’ve seen claims that they’re using SEI messages to do this, but using Intel Video Analyzer I’m not able to see those types of SEI messages.

  Does anyone know if they’re likely using SEI messages or if I can export those SEI messages from the video using ffmpeg or any other command line tool ? Even if they’re just in binary I may be able to figure out the structure.

  Edit : Sample video can be downloaded here (60MB) : https://drive.google.com/file/d/0B2o2cryfiWzANTJQdVJuNjY5SzQ/view?usp=sharing

• Couldn't find platform family in Info.plist for dylib CFBundleSupported platforms or Mach-O LC_VERSION_MIN

  1er décembre 2016, par user2331687

  

  I have developed a App (Mac OS) and I want release it to Mac App Store, and my App use the FFMPEG library, so there are many .dylib (as you can see, for example, libSDL-1.2.0.dylib), when I upload my App, and I got this error, I have googled several days, but I don’t know how to add the "platform family" to a .dylib, since the dylib is build from command line. Can anyone help me to solve this problem, thanks very much !

• PHP exec - echo output line by line during progress

  16 décembre 2014, par Bren1818

  I’m trying to find a way in which I can echo out the output of an exec call, and then flush that to the screen while the process is running. I have written a simple PHP script which accepts a file upload and then converts the file if it is not the appropriate file type using FFMPEG. I am doing this on a windows machine. Currently my command looks like so :

  $cmd = "ffmpeg.exe -i ..\..\uploads\\".$filename." ..\..\uploads\\".$filename.".m4v 2>&1";
  
  exec( $cmd, $output);

  I need something like this :

  while( $output ) {
  
      print_r( $output);
  
      ob_flush();  flush();  
  
  }  

  I’ve read about using ob_flush() and flush() to clear the output buffer, but I only get output once the process has completed. The command works perfectly, It just doesn’t update the Page while converting. I’d like to have some output so the person knows what’s going on.

  I’ve set the time out

  set_time_limit( 10 * 60 ); //5 minute time out

  and would be very greatful if someone could put me in the right direction. I’ve looked at a number of solutions which come close one Stackoverflow, but none seem to have worked.