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• Setup FFMpegCore in Visual Studio 2019

  27 juillet 2022, par DsiakMondala

  I am confused on the basics of using a library. I understand that there is a library called FFMpeg and a wrapper called FFMpegCore so we can use FFMpeg with C#, correct ? I downloaded both FFMpeg and FFMpegCore and I have them in my project's folder. Although I didn't perceive any class named FFMpegOptions in either of the file's folders.
I am stuck on how to actually set it up so I can use it in my little project, I never downloaded someone's library before. Can somebody please walk me though the motions of connecting the three of them together ?

  


  So far I experimented with :

  


  

  • Add a reference to my project, but there doesn't seem to be any .dll, .tlb, .olb, .ocx or .exe files to add

  


  • Add an existing project to my solution. There is a project called FFMpegCore.csproj but adding it raises a missing SDK error. Weirdly enough, opening the same project as a standalone doesn't raise any issues which makes me thing the operation I am trying is inadequate.

  


  


  I am sure this is a silly and easy setup to perform but I just don't know enough to find a solution.

  


• How can I write a ffmpeg log file with Python on macOS ?

  1er septembre 2022, par Tobias

  I want to write ffmpeg log files for several video input files with a Python script on macOS.
Here is my try :

  


  def create_error_logfile(videoinput):
    cmds = [
        "/applications/ffmpeg",
        "-v", 
        "error",
        "-i",
        videoinput, 
        "-f", 
        "null", 
        "-",
        "2>",
        videoinput + ".log"
    ]
    subprocess.Popen(cmds).wait()

for root, directories, files in os.walk(input_path):
    for video in files:
        videoinput = os.path.join(root, video)
        create_error_logfile(videoinput)


  


  But I get the following ffmpeg error :

  


  Unable to find a suitable output format for '2>'
2>: Invalid argument


  


  What am I doing wrong ?
Thanks in advance !

  


• Is there a way to stop ffmpeg from combining mp4s at max mp4 size ?

  3 janvier 2023, par Dray

  I am merging 64 gigs of mp4s together, though ffmpeg will go past the file size limit and corrupt it. Is there a way to stop ffmpeg at a 100 hour mark and create another file, resume, then repeat until finished ?

  


  This is my python code, with the ffmpeg code I used to generate the mp4. It works fine with less files/

  


  
from moviepy.editor import *
import os
from natsort import natsorted

L = []
total = 0
for root, dirs, files in os.walk("F:\door"):
    #files.sort()
    files = natsorted(files)
    with open("list.txt", "a") as filer:
            for file in files:
                if os.path.splitext(file)[1] == '.mp4':
                    filePath = os.path.join(root, file)
                    head, tail = os.path.split(filePath)
                    filePath = "file '" + str(tail)+"'\n"
                    print(filePath)
                    filer.write(filePath)
                    
                    #run in cmd: ffmpeg -f concat -i list.txt -c copy output.mp4