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• copy step written on stackoverflow to install FFMPEG on wamp not working

  17 septembre 2019, par user3833682

  I’m working on project for converting youtube videos into mp3 format and found this also to install ffmpeg on wamp server Install FFMPEG on WAMP and try other links also but ffmpeg extension is not installing so I also checked it at phpinfo to confirm its installed or not but not installed and I’ve windows 7 64, wampserver 2.4, apache 2.4.4 and php version is 5.4.12 I don’t know what am I missing, I spent my 6 hours to figure out but extension of ffmpeg is not installed yet please tell me what am I doing wrong ?

  Now after that I’m getting popup message twice when I start wamp server `PHP Startup : Unable to load dynamic library

  c :/wamp/bin/php/php5.4.12/ext/php_ffmpeg.dll’ - %1 is not a valid
  Win32 application.

  

• Create a video from images where the video size is not much larger than the sum of all images

  25 mars 2024, par Stefan Falk

  What I am describing is basically a slideshow.

  


  I was hoping to be able to create a video which consistis of, for example, three different frames 1, 2 and 3 but each of them gets shown for an hour.

  


  Let's say we have a file inputs.txt

  


  file 'img1.jpg'
duration 3600
file 'img2.jpg'
duration 3600
file 'img3.jpg'
duration 3600


  


  I would like to concatenate these images like so :

  


  ffmpeg -f concat -i inputs.txt output.mp4 -y


  


  However, this is already giving me the warning of

  


  


  More than 1000 frames duplicated

  


  


  I have seen some parameters in the documentation like decimate or mpdecimate but they do not seem to do the trick here.

  


  Is it even possible to do what I am trying here ?

  


  It seems like a "no-brainer" to just show a particular image after a certain amount of time but I am not sure how to achieve that.

  


  By the way, I also tried to use MKV here, but this results in a video with just three frames instead of a three hours video :

  


  ffmpeg -f concat -i inputs.txt output.mkv -y


  


• Converting mkv files to mp4 with ffmpeg-python [closed]

  22 août, par myth0s

  I have a lot of .mkv files that I'm trying to convert to .mp4, so I decided to try and program a solution in python. After a few hours, trying to figure out how to copy the subfolders too, I gave up on it and decided to stick with converting individual subfolders, and then copying them over to another directory.

  


  I've made a simple script, that should convert .mkv files that are in the same folder as the script. However, I keep getting this error :

  


  


  FileNotFoundError : [WinError 2] The system cannot find the file specified

  


  


  Here's my code :

  


  import os
import ffmpeg

start_dir = os.getcwd()

def convert_to_mp4(mkv_file):
    no_extension = str(os.path.splitext(mkv_file))
    with_mp4 = no_extension + ".mp4"
    ffmpeg.input(mkv_file).output(with_mp4).run()
    print("Finished converting {}".format(no_extension))

for path, folder, files in os.walk(start_dir):
    for file in files:
        if file.endswith('.mkv'):
            print("Found file: %s" % file)
            convert_to_mp4(file)
        else:
            pass