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• C# File.Move creates an empty file and IO exception

  30 novembre 2020, par Maddie

  My code processes a video file (using ffmpeg) and creates different qualities (360p, 480p, etc) and formats (mp4 and HLS) of that. After creating these files, I move all of them to another drive (a network location).

  


  my code looks Like this :

  


  var files = Directory.GetFiles(srcFolder);
string filename, destFile = string.Empty, srcFile = string.Empty;
try
{
    for (int i = 0; i < files.Length; i++)
    {
        srcFile = files[i];
        filename = Path.GetFileName(srcFile);
        destFile = Path.Combine(destFolder, filename);
        File.Move(srcFile, destFile);
    }
}
catch
{
    _logger.LogError("Error in moving file. srcFile: {0}, destFile: {1}", destFile, srcFile);
    throw;
}


  


  This process works fine most of the time, but for some files, I get an IO exception every time I run this process.

  


  


  System.IO.IOException : The file exists. at System.IO.FileSystem.MoveFile(String sourceFullPath, String destFullPath, Boolean overwrite)

  


  


  I made sure that destFolder does not exist before, nor did the destFile.

  


  After logging the error and finding the path of source and target files, I downloaded both of them. The source file is a .ts file with a size of 1,048 KB, and the target file is an empty file with the same name (0KB).

  


  This error happened multiple times with the same video, so I assume that it has something to do with the file itself. But I cannot figure it out.

  


• Using find / for how do I remove the original file extension for the output file name ?

  2 septembre 2022, par burntscarr

  When using find or for to run things on multiple files, how would I make something not keep the file extension ?

  


  For example if using ffmpeg on multiple files to convert from DTS to WAV I would run one of the following :

  


  find . -name "*.dts" -exec ffmpeg -i "{}" -c:a pcm_s24le "{}.wav" \;

  


  or

  


  for f in ./*.dts; do ffmpeg -i "$f" -c:a pcm_s24le "$f.wav"; done

  


  Both of these make files that end in .dts.wav rather than just .wav

  


  My goal is to find out what I would add/change to make the "{}.wav" or "$f.wav" not include the .dts part for the output file name. (and several other examples with various extensions)

  


  This happens automatically when using the cli version of flac, the output file automatically removes .wav and has .flac instead, when no output file is specified.
(Ex : flac -8 *.wav would create .flac files next to the .wav files, but they aren't .wav.flac, they're just .flac)

  


• Convertion of mp3 file with ffmpeg results in a file with wrong length [duplicate]

  16 avril 2018, par Arthur Efixty

  This question already has an answer here :

  • ffmpeg : add subtitles to mp4 with out creating a new file
    
    1 answer
    

  I wrote a simple script for Linux where I loop through the folder (containing only .mp3 files) and add an album art to every item.

  Here is my code :

  for file in ~/Desktop/Rise\ Against/*
  
      do
  
          ffmpeg -i "${file}" -i ~/Desktop/appeal\ to\ reason.jpeg -map 0:0 -map 1:0 -codec copy -id3v2_version 3 \-metadata:s:v title="Album cover" -metadata:s:v comment="Cover (front)" "${file%}";
  
      done

  If I set the output filename to hardcoded value like out.mp3 then it works fine. But I need these files to have the same name as existing and overwrite them.

  Running this script results in having all files edited as expected (the album art changed) but they all have a length of 3 seconds. In terminal I get this [mp3 @ 0xc695e0] Audio packet of size 378219 (starting with 6B0855F2...) is invalid, writing it anyway.

  Thanks in advance !