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• Error : spawn EACCESS node-webkit ffmpeg with fluent-ffmpeg

  24 février 2015, par samrad

  I’m doing a nodewebkit app and trying to bundle ffmpeg inside so the user doesn’t have to have ffmpeg installed on their system.

  EACCESS has to do with rights running the code. I tried a chmod -R ug+rw ffmpegFolder to no avail.

  I downloaded the osx binaries from here : https://evermeet.cx/ffmpeg/ I’m assuming these are compiled but I could be wrong ?
  I am bundling the extracted ffmpeg folder into the root of my .nw, which, extracted looks like this :

  

  This part has to do with fluent-ffmpeg.
  It has this method called setFfmpegPath(path) which tells fluent-ffmpeg to use a FFMPEG you provide.
  I get the fs.realpath to ffmpeg-2.5.4 and use that.
  Using ./ffmpeg-2.5.4 or /ffmpeg-2.5.4 or ffmpeg-2.5.4 just gives a spawn ENOENT error which I’ve read, means not found.
  If I remove setFfmepgPath from my fluent-ffmpeg command it works fine using my system ffmpeg.

  I feel I’m on the right track with the spawn EACCESS error. How to make it play nice though ?

• ffmpeg specify order of applied filter

  17 avril 2020, par emilaz

  I have a video that I want to first crop, then scale and output the result as images. I've looked around in the docs but couldn't find a definite answer as to in what order ffmpeg applies its filters.
Currently, I'm running

  



  ffmpeg -i vid -filter:v "crop={0}:{1}:{2}:{3}".format(str(width), str(height), str(x_min), str(y_min)) -c:a copy -crf 23 crop_vid


  



  Followed by

  



  ffmpeg -i crop_vid -vf 'scale={0}*iw:{0}*ih'.format(str(resize_factor)) -c:a copy -crf 23 os.path.join(img_path, '%04d.bmp')


  



  I'm running these as subprocesses from a python script, hence the partial python notation. Could I somehow run this as one script ensuring the order of first crop, then scale instead of running ffmpeg twice ?

  


• convert a format to .ogg and .webm and .mp4 via ffmpeg-php

  3 janvier 2015, par ali raha

  I try to convert mp4 to ogg and flv and webm via ffmpeg-php

  I use this function :

  function convertVideo($inputPath,$outPath,$width,$height,$newname,$format)
  
  {
  
     $outPath=$outPath."/".$newname.$format;
  
      exec("ffmpeg  -i $inputPath -ar 22050 -ab 32 -f $format -s ".$width."x".$height." $outPath 2>&1");    
  
  }

  It create 3 file. the .flv foramt works But not for .ogg and .webm
  It return a file with 0 size.

  what is my wrong ?

  This is my FFmpeg info on info.php

  ffmpeg
  
  
  
  ffmpeg-php version  0.6.0-svn
  
  ffmpeg-php built on Dec 18 2014 10:54:11
  
  ffmpeg-php gd support   enabled
  
  ffmpeg libavcodec version   Lavc52.72.2
  
  ffmpeg libavformat version  Lavf52.64.2
  
  ffmpeg swscaler version SwS0.11.0
  
  
  
  Directive   Local Value Master Value
  
  ffmpeg.allow_persistent 0   0
  
  ffmpeg.show_warnings    0   0