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• Process in c# freezes up

  12 juillet 2022, par Quicksoapy

  environment : Rider 2022.1.2, .NET 6.0, Windows 10

  


  The following piece of code should copy the musicFile that is given and add a cover to the copy, then place it as name : title - artist.extension in the same directory, for example never gonna give you up - rick astley.mp3

  


  When debugging, if i copy-paste what is saved in the variable p.StartInfo.Argumentsin a CMD terminal, it works perfectly, but in my c# code the program freezes up at p.WaitForExit();.

  


  What could i be doing wrong ?

  


   using (Process p = new Process())
    {
        p.StartInfo.UseShellExecute = false;
        p.StartInfo.CreateNoWindow = true;
        p.StartInfo.RedirectStandardOutput = true;
        p.StartInfo.FileName = "CMD.exe";
        p.StartInfo.Arguments = "ffmpeg -i \""+ musicFile +"\" -i  \""+  albumInfo.Image.Uri.ToString() +"\" -map 0:a -map 1 -codec copy -metadata:s:v title=\"Album cover\" -metadata:s:v comment=\"Cover (front)\" -disposition:v attached_pic \"" + directoryFile + "\\" + title + " - " + artist + "." + formatName + "\"";
        p.Start();
        p.WaitForExit();
    }


  


• How to concatenate two or more videos with different width in FFMpeg and to maintain the same aspect ratio ?

  23 octobre 2019, par Aarwil

  I have five video parts to concat all. Each five videos are in the same width and height. The second part is the hstack of another 2 videos and the third part is the hstack and vstack of another 3 videos. While concat all the five video parts the aspect ratio is not maintaining in the final video. Since I am new to ffmpeg help me to sort out the problem

  I have tried with the command with filter complex and to reduce the size I used frame per second.

  "ffmpeg -i
  RM356ce8c15f47cb07b7af885fd718a39f/final/RM356ce8c15f47cb07b7af885fd718a39f.mp4 -vf scale=1280:480 -filter:v fps=fps=30 E :\test\routes\public\assets\downloads\RM356ce8c15f47cb07b7af885fd718a39f/final/RM356ce8c15f47cb07b7af885fd718a39f.mp4"

  Only ’-vf fps=fps=30’ read, ignoring remaining -vf options : Use ’,’ to separate filters

• Add an image behind a video file (.mp4) in python

  12 avril 2020, par George Lua

  I am attempting to add an image behind a video using moviepy and cannot come up with any way to do it. My image dimension is (1080 x 720) and my video dimension is (200 x 200). I am trying to put the video file on top of the image file, place it in the midlle and export the final video with the dimensions of the image. This is a visual representation of what I am trying to achieve :

  



  View image

  



  I tried doing this with the following code, but could not manage to get it to work. Any help is seriously appreciated :)

  



  import moviepy
import moviepy.editor as mp

video = mp.VideoFileClip("/media/pi/vid.mp4")

logo = (mp.ImageClip("/media/pi/pic.png"))

# Preferably I would want the image to be the same duration as the video file. 
# The following was just for testing.
final = mp.CompositeVideoClip([video, logo.set_duration(3)])
final.write_videofile("test.mp4")