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• FFMPEG is not working in AWS lambda function

  13 novembre 2022, par Arun

  I am trying to convert a video file into an audio file using AWS lambda function whenever a file is uploaded into an S3 bucket. So I am using FFMPEG for converting a video file into audio. But I keep getting this error while converting a video file. I have seen similar questions but none of the solutions is not working for me. So If anyone knows please share your solutions.

  



  Error message

  



      TypeError: Cannot create property 'stack' on string 
'Could not find ffmpeg executable, tried "/var/task/node_modules/@ffmpeg-installer/linux-x64/ffmpeg" and "/var/task/node_modules/@ffmpeg-installer/ffmpeg/node_modules/@ffmpeg-installer/linux-x64/ffmpeg"'


  



  Code

  



      const
    ffmpegPath = require("@ffmpeg-installer/ffmpeg").path,
    ffmpeg = require("fluent-ffmpeg");

    // set ffmpeg package path
    ffmpeg.setFfmpegPath(ffmpegPath);
    function convert(input, output, callback) {
        ffmpeg(input)
            .output(output)
            .on('end', function() {                    
                console.log('conversion ended');
                callback(null);
            }).on('error', function(err){
                console.log('error: ', err.code, err.msg);
                callback(err);
            }).run();
    }

    exports.handler = function (event, context, callback) {
        const key = decodeURIComponent(event.Records[0].s3.object.key.replace(/\+/g, ' '));
        console.log("key ", key);
        console.log("event ", event.Records[0].s3);
        convert(key, `/tmp/${key}.mp3`, function(err){
            if(!err) {
                console.log('conversion complete');
            } else {
                console.log('Error');
            }
        });
    }


    const
        ffmpegPath = require("@ffmpeg-installer/ffmpeg").path,
        ffmpeg = require("fluent-ffmpeg");

    // set ffmpeg package path
    ffmpeg.setFfmpegPath(ffmpegPath);
    function convert(input, output, callback) {
        ffmpeg(input)
            .output(output)
            .on('end', function() {                    
                console.log('conversion ended');
                callback(null);
            }).on('error', function(err){
                console.log('error: ', err.code, err.msg);
                callback(err);
            }).run();
    }

    exports.handler = function (event, context, callback) {
        const key = decodeURIComponent(event.Records[0].s3.object.key.replace(/\+/g, ' '));
        console.log("key ", key);
        console.log("event ", event.Records[0].s3);
        convert(key, `/tmp/${key}.mp3`, function(err){
            if(!err) {
                console.log('conversion complete');
            } else {
                console.log('Error');
            }
        });
    }


  



  package.json

  



      "dependencies": {
    "@ffmpeg-installer/ffmpeg": "^1.0.17",
    "fluent-ffmpeg": "^2.1.2",
    "fs": "0.0.1-security"
  }


  


• Cannot convert video file to audio file inside AWS lambda function using Node js

  21 février 2019, par Arun

  I cannot convert a video file into an audio file inside AWS lambda function using Node JS. While running my lambda function it doesn’t throw any error it executes without any error. But the audio file size is still 0 MB size. I am not able to find bugs or any issues in my code.

  Here is my code,

  const fs = require('fs');
  
  const childProcess = require('child_process');
  
  const AWS = require('aws-sdk');
  
  const path = require('path');
  
  AWS.config.update({
  
      region : 'us-east-2'
  
  });
  
  const s3 = new AWS.S3({apiVersion: '2006-03-01'});
  
  
  
  
  
  exports.handler = (event, context, callback) => {
  
      process.env.PATH = process.env.PATH + ':/tmp/';
  
      process.env['FFMPEG_PATH'] = '/tmp/ffmpeg';
  
      const BIN_PATH = process.env['LAMBDA_TASK_ROOT'];
  
      process.env['PATH'] = process.env['PATH'] + ':' + BIN_PATH;
  
  
  
      childProcess.exec(
  
          'cp /var/task/ffmpeg /tmp/.; chmod 755 /tmp/ffmpeg;',
  
          function (error, stdout, stderr) {
  
              if (error) {
  
                  console.log('Error occured',error);
  
              } else {
  
                  var ffmpeg = '/tmp/ffmpeg';
  
                  var createStream = fs.createWriteStream("/tmp/video.mp3");
  
                  createStream.end();
  
                  var params = {
  
                      Bucket: "test-bucket",
  
                      Key: event.Records[0].s3.object.key
  
                  };
  
                  s3.getObject(params, function(err, data) {
  
                      if (err) {
  
                          console.log("Error", err);
  
                      }
  
                      fs.writeFile("/tmp/vid.mp4", data.Body, function (err) {
  
                          if (err) console.log(err.code, "-", err.message);
  
                          return callback(err);
  
                      }, function() {
  
                          try {
  
                              var stats = fs.statSync("/tmp/vid.mp4");
  
                              console.log("size of the file1 ", stats["size"]);
  
                              try {
  
                                  console.log("Yeah");
  
                                  const inputFilename = "/tmp/vid.mp4";
  
                                  const mp3Filename = "/tmp/video.mp3";
  
                                  // // Convert the FLV file to an MP3 file using ffmpeg.
  
                                  const ffmpegArgs = [
  
                                      '-i', inputFilename,
  
                                      '-vn', // Disable the video stream in the output.
  
                                      '-acodec', 'libmp3lame', // Use Lame for the mp3 encoding.
  
                                      '-ac', '2', // Set 2 audio channels.
  
                                      '-q:a', '6', // Set the quality to be roughly 128 kb/s.
  
                                      mp3Filename,
  
                                  ];
  
                                  try {
  
                                      const process = childProcess.spawnSync(ffmpeg, ffmpegArgs);
  
                                      console.log("stdout ", process.stdout);
  
                                      console.log("stderr ", process.stderr);
  
                                      console.log("tmp files ");
  
                                      fs.readdir('/tmp/', (err, files) => {
  
                                          files.forEach(file => {
  
                                              var stats = fs.statSync(`/tmp/${file}`);
  
                                              console.log("size of the file2 ", stats["size"]);
  
                                            console.log(file);
  
                                          });
  
                                        });
  
  
  
                                  } catch (e) {
  
                                      console.log("error while converting video to audio ", e);
  
                                  }
  
  
  
                                  // return process;
  
                              } catch (e) {
  
                                  console.log(e);
  
                              }
  
                          } catch (e) {
  
                              console.log("file is not complete", e);
  
                          }
  
                      }, function () {
  
                          console.log("checking ");
  
                          var stats = fs.statSync("/tmp/video.mp3");
  
                          console.log("size of the file2 ", stats["size"]);
  
                      });
  
  
  
                      return callback(err);
  
                  });
  
              }
  
          }
  
      )
  
  }

  Code workflow

  First of all, I have downloaded ffmpeg binary exec file and put into my project directory. After that, I compressed my project and put it into the lambda function. This lambda function will be triggered whenever the new files are uploaded into an S3 bucket. I have checked /tmp/ storage files and the audio file .mp3 present but the size is 0 MB.

  Note

  And also, in my code the below is not calling or this part is not reaching. When I look into Cloudwatch logs I can’t see this console log messages. I don’t know why this function is not calling.

  function () {
  
          console.log("checking ");
  
          var stats = fs.statSync("/tmp/video.mp3");
  
          console.log("size of the file2 ", stats["size"]);
  
      });

  Please help me to find the solution of this issue. I have spent a lot of times to figure out this issue. But I am not able to find the solution. Any suggestions are welcome !!
  Thanks,

• How to fix "Unable to find a suitable output format for '/'" error in ffmpeg running with PHP [on hold]

  4 avril 2019, par C.Pietro

  I want to compress video on the server after the upload.
  I installed correctly ffmpeg and when i run from the command line

   ffmpeg -i input.mp4 -vcodec libx265 -crf 28 -vcodec h264 -acodec aac -strict -2 output.mp4

  it works !

  But if i run the same command from PHP with exec,

  class VideoCompress {
  
      function compress($path, $name){
  
          if (`which ffmpeg`) {
  
              exec("cd \"$path\";ffmpeg -i \"$name\" -vcodec libx265 -crf 28 -vcodec h264 -acodec aac -strict -2 \"bk_$name\" / 2>&1", $o);
  
              print_r8($o);
  
          }
  
      }
  
  }

  it fails and return this error

  Array
  
  (
  
      [0] => ffmpeg version N-48518-g27c94c57dc-static https://johnvansickle.com/ffmpeg/  Copyright (c) 2000-2019 the FFmpeg developers
  
      [1] =>   built with gcc 6.3.0 (Debian 6.3.0-18+deb9u1) 20170516
  
      [2] =>   configuration: --enable-gpl --enable-version3 --enable-static --disable-debug --disable-ffplay --disable-indev=sndio --disable-outdev=sndio --cc=gcc-6 --enable-fontconfig --enable-frei0r --enable-gnutls --enable-gmp --enable-gray --enable-libaom --enable-libfribidi --enable-libass --enable-libvmaf --enable-libfreetype --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librubberband --enable-libsoxr --enable-libspeex --enable-libvorbis --enable-libopus --enable-libtheora --enable-libvidstab --enable-libvo-amrwbenc --enable-libvpx --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2 --enable-libdav1d --enable-libxvid --enable-libzvbi --enable-libzimg
  
      [3] =>   libavutil      56. 26.100 / 56. 26.100
  
      [4] =>   libavcodec     58. 48.100 / 58. 48.100
  
      [5] =>   libavformat    58. 26.101 / 58. 26.101
  
      [6] =>   libavdevice    58.  7.100 / 58.  7.100
  
      [7] =>   libavfilter     7. 48.100 /  7. 48.100
  
      [8] =>   libswscale      5.  4.100 /  5.  4.100
  
      [9] =>   libswresample   3.  4.100 /  3.  4.100
  
      [10] =>   libpostproc    55.  4.100 / 55.  4.100
  
      [11] => Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'WebHD_720p.mp4':
  
      [12] =>   Metadata:
  
      [13] =>     major_brand     : isom
  
      [14] =>     minor_version   : 512
  
      [15] =>     compatible_brands: isomiso2avc1mp41
  
      [16] =>     encoder         : Lavf57.71.100
  
      [17] =>   Duration: 00:03:23.22, start: 0.000000, bitrate: 1890 kb/s
  
      [18] =>     Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p, 1280x720 [SAR 9:10 DAR 8:5], 1754 kb/s, 30 fps, 30 tbr, 15360 tbn, 60 tbc (default)
  
      [19] =>     Metadata:
  
      [20] =>       handler_name    : VideoHandler
  
      [21] =>     Stream #0:1(eng): Audio: aac (LC) (mp4a / 0x6134706D), 48000 Hz, stereo, fltp, 128 kb/s (default)
  
      [22] =>     Metadata:
  
      [23] =>       handler_name    : SoundHandler
  
      [24] => [NULL @ 0x59fb100] Unable to find a suitable output format for '/'
  
      [25] => /: Invalid argument
  
  )

  Any idea on how can i fix it ?