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• ffmpeg silenceremove - hear what bits are removed

  7 avril 2020, par jimo

  ffmpeg silenceremove is pretty cool. im loving it. i can trim 3 second silences to 2 seconds and reduce a 1.5 hour file of spoken audio down 3 or 4 minutes (depending on the speaker).

  



  once in a while I do hear my choice for stop_threshold (ie-40dB on audio only analog file) does cause the end of a word to be clipped, just here and there when the speaker trails off softly at the end of the word.

  



  is there any way to output what is trimmed to a file ? so I can listen to it and get an idea of just how often this word clipping happens ?

  



  thanks !

  


• use PHP ffmpeg to split a video into many clips of X minute [duplicate]

  23 août 2017, par TakiDDine

  This question already has an answer here :

  • FFmpeg splitting large files
    
    1 answer
    

  i have a lot of videos in a folder , and i want to split each one of them into many clips of 5 minutes and delete the original video after, i have tried many codes here , but it didn’t work for me

  now my code cut’s the video to the only first 5 minutes , any help please , this toke 3 days from me, any help will be much appreciated

  these is my code

   /******** Cut All The Videos To 5 min and send them to output folder *****/
  
  
  
   foreach ($files as $file ) {           
  
  
  
              $path_parts = pathinfo('../../videos/'.$file);
  
              $vids       = '../../videos/';
  
              $outpt       = '../../output/';
  
              $ext        = $path_parts['extension'];
  
              $name       = $path_parts['filename'];
  
              $to = $vids.$file;
  
  
  
              // add old_video_ prefix
  
              rename($to , $vids."old_vid_".$name.".".$ext);
  
  
  
              $video = $vids."old_vid_".$name.".".$ext; 
  
              $to =  $outpt.$name.".".$ext; 
  
  
  
              // To prevent white space error.
  
              $video = "\"$video\"";
  
              $to = "\"$to\""; 
  
  
  
              //ffmpeg command , to cut video
  
              $cmd = "$ffmpeg -i   $video   -ss 00:00:00 -t 00:05:00 -async 1 -c copy $to"; 
  
  
  
              $return = `$cmd`;
  
  
  
      } 

• Concat video files using ffmpeg in individual subfolders with shell script [closed]

  18 août 2022, par Weatherdark

  I had a Windows script that would do what I want, but I switched my server to Unraid so now I need a new script. Anyway, enough backstory.

  


  I regularly have media that is named in a style like "Videoname CD(Number).ext". They get stored in subfolders called Videoname with a different folder for each video.

  


  What I need is a script that goes through each subfolder and creates a concat.txt file with the names of each video file ending in CD(number) in it, in numerical order, that will then call ffmpeg to concat the files using the concat.txt in each subfolder, placing the video file (named after the subfolder) into a folder like /mnt/User/Pool/Finished/Videofile. Then, hopefully it will delete the concat.txt file so I know which folders are finished with a quick look.

  


  I know the ffmpeg concat options for that part, I just have no idea what to use to make sure the resulting video file is named after the subfolder it came from.

  


  I could do this in Windows (albeit in a hacky, not very pretty way), but I have no idea how to accomplish this in Linux.

  


  As an example...

  


  


  /mnt/User/Pool/Concat/10.10.2022.0034.Recording/10.10.2022.0034.Recording
CD1.mp4
/mnt/User/Pool/Concat/10.10.2022.0034.Recording/10.10.2022.0034.Recording
CD2.mp4
/mnt/User/Pool/Concat/10.10.2022.0034.Recording/10.10.2022.0034.Recording
CD3.mp4
/mnt/User/Pool/Concat/10.10.2022.0034.Recording/10.10.2022.0034.Recording
CD4.mp4
/mnt/User/Pool/Concat/10.11.2022.0254.Recording/10.11.2022.0254.Recording
CD1.mp4
/mnt/User/Pool/Concat/10.11.2022.0254.Recording/10.11.2022.0254.Recording
CD2.mp4
/mnt/User/Pool/Concat/10.11.2022.0254.Recording/10.11.2022.0254.Recording
CD3.mp4
/mnt/User/Pool/Concat/10.11.2022.0254.Recording/10.11.2022.0254.Recording
CD4.mp4

  


  Put through ffmpeg to concat, results in files

  


  /mnt/User/Pool/Finished/10.10.2022.0034.Recording.mp4

  


  /mnt/User/Pool/Finished/10.11.2022.0254.Recording.mp4

  


  


  Hopefully that makes sense.

  


  Someone closed this because it wasn't "focused enough" and didn't focus on one thing... but there is ONLY one thing that it needs to do.

  


  I have no idea what they would want me to change to fix what isn't broken, so I fundamentally am at a loss. The script just needs to search through subfolders, create a concat.txt file and send that file to ffmpeg creating the new file, named after the folder, in a new location. That is literally as focused as I can make it.