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• FFMPEG : How to transcode(transfer) Attached Picture (APIC) from source mp3 file to destination mp3 file using FFMPEG ?

  24 février 2012, par javanetbeans

  I have input file as 02.mp3. I want to change it to mp3 file only with specific bit rate. While doing so, I want to preserve all the metadata and the APIC, attached picture corresponding to image should also be transfered to the destionation file. I am using FFMPEG and i am using the following command line...

  ffmpeg -y -i 02.mp3 -id3v2_version 3 -ab 128000 -ss 0 -acodec libmp3lame -f mp3 -ac 2 -ar 44100 output.mp3

  source file : 02.mp3
  destination file : output.mp3.

  But in destination file, i am not getting APIC(attached picture corresponding to 02.mp3). Can anyone help. I am getting all other mp3 tags in output.mp3 except for APIC. How to get APIC in destinaton file as well ?

• How to split a mp4 file into multiple .m4s chunks with one init.mp4 file

  29 novembre 2018, par JAVA Coder

  I am trying to split one audio.mp4 into multiple chunks(each of 10 seconds) with file format of .m4s or .mpd and one init.mp4 .

  1>I have successfully made chunks of 10 secs with one m3u8 file by this command-

  ffmpeg -i song.mp3 -c:a aac -b:a 64k -vn -hls_time 10 -hls_list_size 0 abc.m3u8

  2>Tried this command also

  MP4Box -dash 10000 -frag 1000 -rap -segment-name myDash -subsegs-per-sidx 5 -url-template test.mp4

  But not able to make .m4s chunks with one init.mp4.

• FileNotFoundError : [WinError 2] The system cannot find the file specified in Windows 10

  26 juillet 2021, par cr_untilted

  I am attempting to use ffmpeg in a script that take screenshots of a video in my directory and I keep getting the following errors :

  


  Saving Screens...
Process Process-1:
Traceback (most recent call last):
  File "C:\Users\User1\AppData\Local\Programs\Python\Python39\lib\multiprocessing\process.py", line 315, in _bootstrap
    self.run()
  File "C:\Users\User1\AppData\Local\Programs\Python\Python39\lib\multiprocessing\process.py", line 108, in run
    self._target(*self._args, **self._kwargs)
  File "C:\Users\User1\ffmpegScreenshot-Assistant\src\prep.py", line 580, in screenshots
    ffmpeg
  File "C:\Users\User1\AppData\Local\Programs\Python\Python39\lib\site-packages\ffmpeg\_run.py", line 313, in run
    process = run_async(
  File "C:\Users\User1\AppData\Local\Programs\Python\Python39\lib\site-packages\ffmpeg\_run.py", line 284, in run_async
    return subprocess.Popen(
  File "C:\Users\User1\AppData\Local\Programs\Python\Python39\lib\subprocess.py", line 951, in __init__
    self._execute_child(args, executable, preexec_fn, close_fds,
  File "C:\Users\User1\AppData\Local\Programs\Python\Python39\lib\subprocess.py", line 1420, in _execute_child
    hp, ht, pid, tid = _winapi.CreateProcess(executable, args,
FileNotFoundError: [WinError 2] The system cannot find the file specified


  


  Below is the code snippet from 'prep.py' where the error occurs above.

  


            while i != self.screens:
                image = f"{base_dir}/tmp/{folder_id}/{filename}-{i}.png"
                (
                    ffmpeg
                    .input(path, ss=random.randint(round(length/5) , round(length - length/5)))
                    .output(image, vframes=1)
                    .overwrite_output()
                    .global_args('-loglevel', 'quiet')
                    .run(quiet=True)
                )


  


  The error message does not mention what file it is unable to find so debugging this issue has proven challenging. I am using Windows 10 and I have tried 'cmd', Git-Bash, and PowerShell. I am also using Python Version 3.9.6. Any tips or ideas on how I can debug this issue and get it fixed ?