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• How to generate video thumbnail in NodeJs ?

  8 septembre 2020, par Schüler

  I am trying to generate video thumbnail but I am not getting an idea how to do that, I tried using fluent-ffmpeg & Video-thumbnail libraries but I don't know how to use them. Please, someone, help me
Note I cannot usersocket.io in my project

  



  I have tried this

  



  const ffmpeg = require('fluent-ffmpeg');
const ffmpeg_static = require('ffmpeg-static');    
 ffmpeg(req.file.path)
          .screenshots({
            timestamps: [0.0],
            filename: 'xx.png',
            folder: upload_folder
          }).on('end', function() {
            console.log('done');
          });


  



  getting this error

  



  events.js:183
      throw er; // Unhandled 'error' event
      ^

Error: Cannot find ffmpeg


  


• Converting ffmpeg & ffprobe outputs to variables in an ffmpeg AWS Lambda Layer

  7 mars 2019, par Gracie

  I have two tasks I am trying to perform with the ffmpeg AWS Lambda layer.

  1) Convert an audio file from stereo to mono (with ffmpeg)

  2) Get the duration of the audio file and pass the result to a variable (with ffprobe)

  const { spawnSync } = require("child_process");
  
  const { readFileSync, writeFileSync, unlinkSync } = require("fs");
  
  const util = require('util');
  
  var fs = require('fs');
  
  
  
  exports.handler = (event, context, callback) => {
  
  
  
      // Windows 10 ffmpeg command to convert stereo to ffmpeg is
  
      // ffmpeg -i volando.flac -ac 1 volando-mono.flac
  
  
  
      // Convert from stereo to mono
  
      spawnSync(
  
          "/opt/bin/ffmpeg",
  
          [
  
              "-i",
  
              `volando.flac`,
  
              "-ac",
  
              "1",
  
              `/tmp/volando-mono.flac`
  
          ],
  
          { stdio: "inherit" }
  
      );
  
  
  
      //Pass result to a variable
  
      //var duration = stdio;
  
  
  
      //Read the content from the /tmp directory
  
      fs.readdir("/tmp/", function (err, data) {
  
          if (err) throw err;
  
          console.log('Contents of tmp file: ', data);
  
      });
  
  
  
      // Get duration of Flac file
  
      // Windows 10 ffmpeg command is 
  
      // ffprobe in.wav -show_entries stream=duration -select_streams a -of compact=p=0:nk=1 -v 0
  
      spawnSync(
  
          "/opt/bin/ffprobe",
  
          [
  
              `in.wav`,
  
              "-show_entries",
  
              "stream=duration",
  
              "-select_streams",
  
              "a",
  
              "-of",
  
              "compact=p=0:nk=1",
  
              "-v",
  
              "0"
  
          ],
  
          { stdio: "inherit" }
  
  
  
          //Pass result to a variable
  
          //var duration = stdio;
  
      );
  
  
  
  };

  Can anyone who has had success with this ffmpeg Lambda layer help get an output for these commands ?

  Here are some resources regarding the FFmpeg Lambda layer :

  https://serverless.com/blog/publish-aws-lambda-layers-serverless-framework/
  https://github.com/serverlesspub/ffmpeg-aws-lambda-layer
  https://devopstar.com/2019/01/28/serverless-watermark-using-aws-lambda-layers-ffmpeg/

• html5 video wont play ANY mp4 encodes on ipad

  12 mars 2019, par nickg

  Im trying to embed a mp4 on a page with the HTML5 video tag. Everything works fine on Desktop but nothing will work on an iPad Version 9.3.4.
  I have the mime types in an .htaccess file. I’ve tried various encodes with handbrake, Miro and FFmpeg conversions.

  Even sample videos like at w3schools and videojs don’t play.
  The video will play if i actually sync it to the iPad, but nothing works over the web. An older iPad actually plays mp4s through the HTML5 video player.
  I’m ready to throw this POS iPad through a window.

   <video autoplay="false" width="320" height="240" controls="true">
  
    <source src="http://webnamehere.com/video/bunny.mp4" type="video/mp4; codecs=&quot;avc1.42E01E, mp4a.40.2&quot;">
  
  
  
  Your browser does not support the video tag.
  
  </source></video>

  Has anyone found a way to fix this ? Is there ANY encoding that this thing will actually play ? Thank you in advance for any help.