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• 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)

  


• End Part of .WAV file is not converted to .MP3 file

  29 janvier 2021, par Shailendra Patil

  

  


  As you can see the in the above image, the end part of the .wav file is not represented in the mp3 file. Here, I am making use of avcodec_decode_audio4() api to decode each packet, and using lame_encode_buffer() api to encode it in mp3 format. Here, I am seeing this issue for MONO streams( 1.wav -> 1.mp3 ). I just wanted to know why is this occuring, even when I am providing all the .wav file content. I am suspecting there is some caching that is happening, due to which I am unable to get whole data into the mp3 file. Any help here would be appreciated.

  


• 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 !