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• How to make ffmpeg follow a variable file path [closed]

  2 septembre 2023, par Wessie

  I have a little Python script. What it should do is to take the last file out a folder and convert it to another with the same filename.

  


  The Script :

  


  from moviepy.editor import *
import glob
import os.path

#Variabels
folder_path = r'/pathtofolder/Recordings'
file_type = r'/*h264'
file_type_conv = r'/*mp4'
files = glob.glob(folder_path + file_type)
files_conv = glob.glob(folder_path + file_type_conv)
clip_latest = max(files, key=os.path.getctime)
clip_conv = max(files_conv, key=os.path.getctime)

#print(clip_latest)
#print(clip_conv)

ffmpeg -i clip_latest -r 25 clip_conv 


  


  This gives me back :

  


  SyntaxError: invalid syntax


  


  When I 'print" the code it gives me the path I need. But I cannot get the path into the ffmpeg code.
What anm I doing wrong ?

  


  Thanks in advance !

  


  I tried to place the variables in "" and in {}.
When I give a full path it works good.

  


  UPDATE :

  


  Got it working ! Thaqnks to the advise of@Daviid I've used python-ffmpeg library.
Here's the code :

  


  import glob
import os.path
import subprocess

#Variabels
folder_path = r'/home/wessie/Halloween/Recordings'
file_type = r'/*h264'
file_type_conv = r'/*mp4'
files = glob.glob(folder_path + file_type)
files_conv = glob.glob(folder_path + file_type_conv)
clip_latest = max(files, key=os.path.getctime)
clip_conv = clip_latest + '.mp4'

print(clip_latest)
print(clip_conv)

subprocess.run(['ffmpeg', '-i', clip_latest, clip_conv])



  


  Thanks !

  


• ffmpeg library does not work from path but directly

  19 juin 2020, par Ángel Barrios

  I want to add a watermark to a video.

  



  I'm trying with windows 10 and ffmpeg library

  



  The command I am using.

  



  ffmpeg -i example.mp4 -i watermark.png  -filter_complex "overlay=0-0+0:main_h-overlay_h-0+0" watermark.mp4


  



  When I use it this way accesing the path I get this error :

  



  

  



  But when I execute it not from path but opening cmd right on the executable folder it works fine

  



  I did some research and couldn't find the answers I was looking for.

  



  Why does this happen ? I can´t understand really

  



  Thank you !

  


• ffmpeg Video concat demuxer txt path

  19 avril 2013, par Steven Mills

  I'm making use of the ffmpeg command line process, specifically the demuxer (see here).

  I'm attempting to run the equivelent of this :

  ffmpeg -f concat -i C:\Users\Username\AppData\Local\mylist.txt -c copy output.avi

  I've tried it and it works fine in the console, however I can't figure out a way to get this to work through code. I've checked the path is right, I've checked the txt file is named correctly etc.

  ffmpeg.StartInfo.Arguments = "-f concat -y -i " + @"C:\Users\Username\AppData\Local\Temp\mylist.txt" + " -c copy output.avi";
  
  ffmpeg.StartInfo.FileName = "ffmpeg.exe";

  For the path I've tried with/without the @ before the path, I've tried \ and / instead of \, I've tried using System.IO.Path methods, but none of it seems to work. It always returns an error saying "file not found", and through debugging I can see that ffmpeg.StartInfo.Arguments always ends up having \ between folders, so I'm guessing that might be the issue.

  Does anyone have a clue how I'd go about circumventing this particular issue ?