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• FileNotFoundError : [Errno 2] No such file or directory : 'ffmpeg'

  5 avril 2015, par stackoverflow

  I’m new in python and i’m using pydub modules to play mp3 track.

  Here is my simple code to play mp3 :

  #Let's play some mp3 files using python!
  
  
  
  from pydub import AudioSegment
  
  from pydub.playback import play
  
  
  
  song = AudioSegment.from_mp3("/media/rajendra/0C86E11786E10256/05_I_Like_It_Rough.mp3")
  
  play(song)

  When i run this program, it says :

  */usr/bin/python3.4 /home/rajendra/PycharmProjects/pythonProject5/myProgram.py
  
  /usr/local/lib/python3.4/dist-packages/pydub/utils.py:161: RuntimeWarning: Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work
  
    warn("Couldn't find ffmpeg or avconv - defaulting to ffmpeg, but may not work", RuntimeWarning)
  
  /usr/local/lib/python3.4/dist-packages/pydub/utils.py:174: RuntimeWarning: Couldn't find ffplay or avplay - defaulting to ffplay, but may not work
  
    warn("Couldn't find ffplay or avplay - defaulting to ffplay, but may not work", RuntimeWarning)
  
  Traceback (most recent call last):
  
    File "/home/rajendra/PycharmProjects/pythonProject5/myProgram.py", line 11, in <module>
  
      song = AudioSegment.from_mp3("/media/rajendra/0C86E11786E10256/05_I_Like_It_Rough.mp3")
  
    File "/usr/local/lib/python3.4/dist-packages/pydub/audio_segment.py", line 355, in from_mp3
  
      return cls.from_file(file, 'mp3')
  
    File "/usr/local/lib/python3.4/dist-packages/pydub/audio_segment.py", line 339, in from_file
  
      retcode = subprocess.call(convertion_command, stderr=open(os.devnull))
  
    File "/usr/lib/python3.4/subprocess.py", line 533, in call
  
      with Popen(*popenargs, **kwargs) as p:
  
    File "/usr/lib/python3.4/subprocess.py", line 848, in __init__
  
      restore_signals, start_new_session)
  
    File "/usr/lib/python3.4/subprocess.py", line 1446, in _execute_child
  
      raise child_exception_type(errno_num, err_msg)
  
  FileNotFoundError: [Errno 2] No such file or directory: 'ffmpeg'
  
  
  
  Process finished with exit code 1*
  
  </module>

  Please help me ! I’ve checked everything path but it’s not working. I’m currently using Ubuntu.

  Help would be appreciated !

• Looping Variables in a Batch File (for use with FFmpeg)

  16 avril 2021, par OrdinaryCarrot16

  I am creating a batch script that stores the input of the user into variables, that will later be used for creating converting files then adding metadata (via FFmpeg). It is working pretty good, now I'm just trying to figure out how to loop the FFmpeg line that uses all the variables the user inputted, and it will loop the command till it reaches the number specified in the 'track_amount' variable.

  


  Do you have any ideas on how to make this work ? Thanks !

  


  setlocal enabledelayedexpansion

:: Scan current directory for audio files
DIR *.mp3 OR *.m4a

set /P cover-art=Select the Audio/Image File with the Cover Art (ex. MP3/M4A or JPG/PNG): 
set /P artist=Artist/Band Name: 
set /P track_amount=How many tracks are in this album: 

if %track_amount% GTR 1 (
    set /P album=Album Name: 
)

set /P filename=Song File Name: 
set /P title=Song Name: 
set /P track=Track Number: 
set /P genre=Genre: 
set /P language=Language: 

ffmpeg -i "%cover-art%" -vf scale=512:512 -sws_flags bicubic cover_tmp.png

for %%t in (!track_amount!) do ffmpeg -i "%filename%" -i cover_tmp.png -map_metadata -1 -map 0:0 -map 1:0 -id3v2_version 3 -metadata artist="%artist%" -metadata album="%album%" -metadata title="%title%" -metadata track="%track%/%track_amount%" -metadata genre="%genre%" -metadata language="%language%" -c:1 png -disposition:1 attached_pic -c:a libmp3lame -ar 44100 -b:a 160k "%title%.mp3"

pause


  


• Process video with frame averaging to produce long exposure final frame

  4 mars 2020, par user3925023

  I’m looking for a FFMPEG script able to process a video file, create frame averaging and save latest long exposed frame.
  My goal is to process the video enhancing the trasparent TV logo on the screen :
  

  Is this viable via FFMPEG ? thx