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• Need help combining commands in to a script to run in Ubuntu

  17 juin 2020, par user298294

  I have a bunch of video files with DTS audio that I need to convert to AC3. I have found commands that can do different parts of the task but I'm not sure how to put it all together to make a script that works. I have found the following script that will convert the audio from all my files to AC3 however I would prefer for it to only convert the DTS audio files to AC3. The script is as follows.

  



  shopt -s globstar
for f in **/*.mkv; 
do 
    fname="${f##*/}"
    ffmpeg -i "$f" -c:v copy -c:s copy -c:a ac3 "/some/directory/$fname" &&
    mv "/some/directory/$fname" "$f"
done


  



  I have also found this command that will return what sort of audio codec the mkv file is using.

  



  `ffprobe -v error -select_streams a:0 -show_entries stream=codec_name -of default=nokey=1:noprint_wrappers=1 input.mkv`


  



  So I'm wondering how I can combine the two to create a script that will do what I want it to do. I'm guessing I can add an if function using ffprobe at the beginning of the script ? Something like this...

  



  shopt -s globstar
for f in **/*.mkv; 
do 
    fname="${f##*/}"
    if ffprobe -v error -select_streams a:0 -show_entries stream=codec_name -of 
       default=nokey=1:noprint_wrappers=1 "$f" | egrep "DTS"; then
       ffmpeg -i "$f" -c:v copy -c:s copy -c:a ac3 "/some/directory/$fname" &&
       mv "/some/directory/$fname" "$f"
    fi
done


  



  Are there any problems with that ? I haven't written scripts since I was in high school playing around with my graphics calculator because I was bored so any help would be greatly appreciated.

  


• Revision 69908 : inserer avant ou car peut etre un script inline et ...

  14 février 2013, par cedric@… — Log

  inserer avant &lt ;link&gt ; ou &lt ;/head&gt ; car &lt ;script&gt ; peut etre un script inline et il devient bloquant derriere ne css

• PHP script to close the ffmpeg session

  14 octobre 2016, par Kiran Kumar S

  We’ve made a PHP script to run the ffmpeg on a Windows 7 machine in background as below :

  <?php
  
  date_default_timezone_set('Asia/Kolkata');
  
  $date = date('dmY_His', time());
  
  $outputdst = ("C:/Users/test/Desktop/$date");
  
  $cmd = "ffmpeg -f dshow -i video=screen-capture-recorder -r 15 -t 360 $outputdst.avi ";
  
  
  
  $WshShell = new COM("WScript.Shell");
  
  $WshShell->Run($cmd, 0, false);
  
  ?>

  The script is able to start the screen recording. Now the issue is if I kill the process, then the recorded file is not playing. How to stop ffmpeg without corrupting the recorded file ?