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• FFMPEG add audio to a video but clip it to the video length

  5 novembre 2011, par Daniel Lloyd-Wood

  I'm trying to create a video from an image sequence and add audio with FFMPEG

  The frame sequence is only 25 frames long but the audio is several minutes. I want FFMPEG to clip the audio to the length of the frame sequence.

  This is the command I have tried :

  ffmpeg -i input_images%04d.jpg -pix_fmt yuv420p -vcodec mjpeg -qmin 1 -qmax 1 -r 25 -i audio_file.mp3 -ar 22050 -ab 192k -aframes 25 output.mov

  This results in a video with the first image sequence but the full length audio. -aframes is ignored. Any ideas ?

• FFMPEG : How to combine video and image (video template)

  22 février 2024, par clo5ure

  Goal

  


  I have a video and an image (a template for the video) that I'm trying to combine into one output video (1080w x 1920h - 9:16 aspect ratio).

  


  

  • Input video - 1920x1080

  


  • Input image - 1080x1920

  


  • Output video - 1080x1920

  


  


  This image shows what I'm trying to accomplish. The two orange sections are the input image - it's a single .png with a transparent section in the middle for the video.

  


  As mentioned in the title, I'm trying to accomplish this using FFMPEG. More specifically, I'm using the fluent-ffmpeg npm package.

  


  Current Status

  


  I can read in both inputs just fine but I have issues getting the two to play nicely with one another.

  


  If I get the overlay working then my output video is 1920x1080 instead of 1080x1920.

  


  If I get the output video dimensions right, then the video is either stretched or I get errors adding my overlay.

  


  Code

  


  Here's what I have at the moment. I'm happy to answer any questions. Thank you in advance for taking a look :)

  


  var ffmpeg = require('fluent-ffmpeg');
var command = ffmpeg();
var timemark = null;

command
  .on('end', onEnd )
  .on('progress', onProgress)
  .on('error', onError)
  .input('./input-video.mp4')
  .input('./template.png')
  .complexFilter([
    {
      filter: 'scale',
      options: { width: 1080, height: 1920 }
    },
    // {
    //   filter: 'overlay',
    //   options: { x: 100, y: 100 }
    // },
  ])
  .outputFps(30)
  .output('./output-video.mp4')
  .run();

/* Misc */

function onProgress(progress){
  if (progress.timemark != timemark) {
    timemark = progress.timemark;
    console.log('Time mark: ' + timemark + "...");
  }
}

function onError(err, stdout, stderr) {
  console.log('Cannot process video: ' + err.message);
}

function onEnd() {
  console.log('Finished processing');
}


  


• Converting video by ffmpeg php but getting 0kb video file

  8 octobre 2014, par Vikas Gautam

  I am useing the ffmpeg command and able to convert video successfully on my local server and that working fine . now i am trying to convert the video in my live server my hosting provider installed the ffmpeg extension on sever and provide me the path for directory

  i am using the command on server

   echo exec("/usr/local/bin/ffmpeg -i /home/t4carenc/public_html/mycutekid/wp-content/themes/mycutekid/video/small.mp4    /home/t4carenc/public_html/mycutekid/wp-content/themes/mycutekid/video/outpu.flv");

  i am getting the converted file on my folder but

  the issue is that its with 0kb size means blank file .

  I tried some codes from searching but not help.

  Any help greatly appreciated