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• ffmpeg module saving not working after compression

  27 août 2022, par nickcoding2

  I'm just trying to save an mp4 to a different mp4 (before I even start playing around with the different compression settings). What exactly is going wrong here ?

  


  const ffmpeg = require('ffmpeg');

try {
    var process = new ffmpeg('./original.mp4');
    process.then(function (video) {
        video
        .save('./new.mp4', function (error, file) {
            if (!error) {
                console.log('Video file: ' + file);
            } else {
                console.log(error)
            }
        });
    }, function (err) {
        console.log('Error: ' + err);
    });
} catch (e) {
    console.log(e.code);
    console.log(e.msg);
}


  


  I get the following error :

  


  Error: Command failed: ffmpeg -i ./original.mp4  ./new.mp4
/bin/sh: ffmpeg: command not found

    at ChildProcess.exithandler (child_process.js:390:12)
    at ChildProcess.emit (events.js:400:28)
    at maybeClose (internal/child_process.js:1055:16)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:288:5) {
  killed: false,
  code: 127,
  signal: null,
  cmd: 'ffmpeg -i ./original.mp4  ./new.mp4'
}


  


• Make video from individual frames (PNGs) and add audio track

  30 novembre 2020, par IntergalacticSpaceMonkey

  I have been working on a video processing tool that takes each frame from an input video and saves the result as a series of images. So, in essence, if my video has a length of 5 minutes, and has 25 fps, I will get 7500 individual frames.

  


  What I want is then to put this back into a video format, but at the same time also add the audio track from the original source. Is this possible with ffmpeg ? Also, would it be possible to automatically determine the fps on the original video source and then use this as fps value for ffmpeg for the video + audio track in the new video file ?

  


• FFMPEG & boxblur, alignment

  26 décembre 2020, par Дмитрий Варзанов

  

  


  This is the original frame. It is necessary to bring it to a height of 594, and reduce the width in the proportion of Perform-vf "scale=-2:594", done. At the output, we have a height of 594, and a width of even less.

  


  But, the image width should be 1056, while not stretching the frame. That is, add curbs

  


  ffmpeg -i file -ss 10 -lavfi "[0:v]scale=1056:594,boxblur=luma_radius=min(h\,w)/50:chroma_radius=min(cw\,h)/50[bg];[bg][0:v]overlay=(W-w)/2:0" -vframes 1 output_image1.jpg


  


  The whole day I tried to set it up correctly, but it doesn't work out. The result is a width of 1056 and a height of 594. At the same time, the original frame, or rather the entire frame, did not fit in height. Cut from the bottom

  


  

  


  How to perform so that the original frame is not cut off and the borders are called shadow. Was at the level of
enter image description here