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• The system cannot find the file specified with ffmpeg

  15 mai 2024, par Samhita vempatti

  In the process of using the ffmpeg module to edit video files i used the subprocess module

  



  The code is as follows :

  



  #trim bit

import subprocess
import os
seconds = "4"
mypath=os.path.abspath('trial.mp4')
subprocess.call(['ffmpeg', '-i',mypath, '-ss', seconds, 'trimmed.mp4'])


  



  Error message :

  



  Traceback (most recent call last):&#xA;  File "C:\moviepy-master\resizer.py", line 29, in <module>&#xA;    subprocess.call([&#x27;ffmpeg&#x27;, &#x27;-i&#x27;,mypath, &#x27;-ss&#x27;, seconds, &#x27;trimmed.mp4&#x27;])&#xA;  File "C:\Python27\lib\subprocess.py", line 168, in call&#xA;    return Popen(*popenargs, **kwargs).wait()&#xA;  File "C:\Python27\lib\subprocess.py", line 390, in __init__&#xA;    errread, errwrite)&#xA;  File "C:\Python27\lib\subprocess.py", line 640, in _execute_child&#xA;    startupinfo)&#xA;WindowsError: [Error 2] The system cannot find the file specified&#xA;</module>

  



  After looking up similar problems i understood that the module is unable to pick the video file because it needs its path, so i took the absolute path. But in spite of that the error still shows up.
The module where this code was saved and the video file trial.mp4 are in the same folder.

  


• FFMPEG : Unable to find suitable output format for rtsp ://

  19 juillet 2017, par Hakeem El Bakka-lee

  I have a WebRTC server, streaming to a WebBrowser front-end.

  I feed my WebRtc Server a video and/or audio flux through FFMPEG.

  The problem is that I just can’t seem to make FFMPEG stream something in rtp/rtsp.

  Here is my line, wich comes from the FFMPEG website :

  ffmpeg -re -i rm.mp4 -f rtsp -muxdelay 0.1 rtsp://127.0.0.1/live.sdp

  I got erros like :

  Connection to tcp://127.0.0.1:554?timeout=0 failed: Connection refused
  
  Could not write header for output file #0 (incorrect codec parameters ?): Connection refused

  I modified the ffserver.conf file but nothing changed.

  Has anybody experienced the same problem ?

• ffmpeg linux command line conversion a folder with FLAC files in them to MP3 (v0 LAME quality) in another directory, not deleting the original FLACs [on hold]

  3 septembre 2017, par LT.Smash

  Maybe with the new folder is inside the original folder with the FLAC files, creating a directory named like the one with the flac files, except with (v0) at the end. It would be very useful for stuff that is on a VPS of mine without having to download the stuff home, use a gui application re-upload etc. I’m used to do some straightforward command line ffmpeg conversion for videos, but as you can see this is audio with many paramaters and I can’t get it to work and what I find here is great, but is only parts of what I’m looking for and also many seem to convert the flac files themselves, so they disappear and the mp3 remains.