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• mac terminal ffmpeg batch recursive conversion preserving directory structure

  13 avril 2020, par kidnim

  i'm using ffmpeg on mac to batch convert .flv to .mp4 files. i'm trying to find all files in subdirectories of the current directory and save new files in the same directory.

  



  for instance starting with :

  



  subdirectory1/video1.flv
subdirectory1/video2.flv
subdirectory2/video1.flv


  



  and ending with

  



  subdirectory1/video1.mp4
subdirectory1/video2.mp4
subdirectory2/video1.mp4


  



  i've gotten this far but can't figure out how to save with preserved recursive directories

  



  for i in  `find -name . "*.flv"`; do ffmpeg -i "$i" "${i%.*}.mp4"; done


  


• Execute multiple commands in background from terminal & redirecting output

  9 octobre 2016, par Guernica

  I’m running ffmpeg via an exec command from php. I need to wait for the command to finish executing and run another command to call a php script.

  I need the output to be redirected to text files.

  This i have accomplished with the following code but it wont execute in the background. PHP hangs until the script has finished executing.

  exec("ffmpeg -i INPUTFILE -f mp4 -vcodec libx264 -preset fast -profile:v main -acodec aac -strict -2 OUTPUTFILE -hide_banner 1> /tmp/1.txt 2>/tmp/1.txt && php PATH_TO_PHP_SCRIPT/complete.php id=11 1> /tmp/11.txt 2> /tmp/11.txt &");

  Any help would be greatly appreciated.

  EDIT : I’ve got the required functionality by calling my original php containing the above code from another php containing

  exec("php convert.php id=".$id."  1> /tmp/".$id."_error.txt 2>/tmp/".$id."_error.txt &");

  I would rather leave this question open to find a more elegant solution or information as to why my original code at the top doesn’t function in the way i would expect.

• FFmpeg command works in terminal but gives an error in php code

  21 mai 2021, par Rider

  Use this command :

  


  ffmpeg -i lecture.mp4 -codec: copy -start_number 0 -hls_time 10 -hls_list_size 0 -f hls filename.m3u8


  


  It works.

  


  $path = '1/';
  $inputFile = 'lecture.mp4';
  $filePath = 'filename.m3u8';
  $commandOutput = exec ('/opt/ffmpeg/ffmpeg -I '.$path .$inputFile. ' -Codec: copy -start_number 0 -hls_time 10 -hls_list_size 0 -f hls'.$path .$filePath);


  


  Using this PHP code I get the error : At least one output file must be specified

  


  What is causing this error ?