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• Resque does not find ffmpeg

  17 décembre 2012, par d33pika

  I am using resque to queue some encoding jobs. I have workers that pick up these jobs and do some transcoding.
  The issue is system "mencoder .." works fine but system "ffmpeg .." throws not found and the same to with system "qt-faststart .."
  I installed mencoder using sudo apt-get install.
  ffmpeg and qt-faststart were built from source.
  So mencoder was in /usr/bin and the other two in /usr/local/bin.
  So, the next thing I tried was using full path in the system command, that also returned not found.
  Then I copied ffmpeg and qt-faststart into /usr/bin.. Still got "Not Found"
  My worker code runs standalone but when god runs it, ffmpeg and qt-fasstart fail to execute. Yes, I have god configured to watch resque. Now, I don't know what else to try ! Any ideas ?

• building voice recorder using ffmpeg and html5

  15 juillet 2014, par user3789242

  I’m building a voice recorder program using html5 I have managed so far to record the voice and save the audio file as .wav I also can convert that file to a selected file format using ffmpeg. what I want to do is to let the user choose the format before recording so that when saving the audio file will be converted directly using ffmpeg into the selected format.I have been looking for demos for weeks and can’t find anything if someone can help me with a demo please.
  thank you in advance
  this is my javascript code for uploading the saved audio as .wav in a folder named upload, and the fmpeg conversion, i’m missing the call of the file saved in the folder please :

  function handleWAV(blob) {
  
  
  
  if (currentEditedSoundIndex !== -1) {
  
  $('#inFile2 tr:nth-child(' + (currentEditedSoundIndex + 1) + ')').remove();
  
  
  
  }
  
  
  
  var url = URL.createObjectURL(blob);
  
  
  
  var li = document.createElement('li');
  
  var au = document.createElement('audio');
  
  var hf = document.createElement('a');
  
  
  
  au.controls = true;
  
  au.src = url;
  
  hf.href = url;
  
  hf.download = 'audio_recording_' + new Date().getTime() + '.wav';
  
  hf.innerHTML = hf.download;
  
  li.appendChild(au);
  
  li.appendChild(hf);
  
  inFile2.appendChild(li);
  
  
  
  
  
  fileName=hf.download;
  
  
  
  var reader = new FileReader();
  
  reader.onload = function(event){
  
      var fd = new FormData();
  
      var Name = encodeURIComponent('audio_recording_' + new Date().getTime() + '.wav');
  
      console.log("name = " + Name);
  
      fd.append('fname', Name);
  
      fd.append('data', event.target.result);
  
      $.ajax({
  
          type: 'POST',
  
          url: 'upload.php',
  
          data: fd,
  
          processData: false,
  
          contentType: false,
  
          success: function(data){
  
              //console.log(data);
  
          }
  
      });
  
  };      
  
  reader.readAsDataURL(blob);
  
  
  
  
  
  
  
   var fileBuffer;
  
  
  
  
  
  
  
   // create ffmpeg worker
  
   function getFFMPEGWorker() {
  
  
  
  
  
       var ffmpegWorker = new Worker('worker.js');
  
  
  
       ffmpegWorker.addEventListener('message', function(event) {
  
           var message = event.data;
  
           console.log(message.type);
  
           if (message.type === "ready" && window.File && window.FileList && window.FileReader) {
  
               // script loaded, hide loader
  
  
  
           } else if (message.type == "stdout") {
  
               console.log(message.data);
  
           } else if (message.type == "stderr") {
  
               console.log(message.data);
  
           } else if (message.type == "done") {
  
               var code = message.data.code;
  
               console.log(code);
  
               console.log(message.data);
  
               var outFileNames = Object.keys(message.data.outputFiles);
  
  
  
               console.log(outFileNames);
  
               if (code == 0 && outFileNames.length) {
  
                   var outFileName = outFileNames[0];
  
                   console.log(outFileName);
  
                   var outFileBuffer = message.data.outputFiles[outFileName];
  
                   console.log(outFileBuffer);
  
                   var src = url;
  
                   console.log(url);
  
                   $("#downloadLink2").attr('href', src);
  
                   $("#download2").show();
  
               } else {
  
                   $("#error").show();
  
               }
  
  
  
           }
  
       }, false);
  
       return ffmpegWorker;
  
   }
  
  
  
   // create ffmpeg worker
  
   var ffmpegWorker = getFFMPEGWorker();
  
   var ffmpegRunning = false;
  
   if (ffmpegRunning) {
  
       ffmpegWorker.terminate();
  
       ffmpegWorker = getFFMPEGWorker();
  
   }
  
   ffmpegRunning = true;
  
  
  
  
  
  
  
   // hide download div
  
   $("#download2").hide();
  
  
  
   // change download file name
  
   var fileNameExt = fileName.substr(fileName.lastIndexOf('.') + 1);
  
  
  
   var outFileName = fileName.substr(0, fileName.lastIndexOf('.')) + "." + getOutFormat();
  
  
  
   $("#downloadLink2").attr("download2", outFileName);
  
   $("#downloadLink2").text(outFileName);
  
  
  
   var arguments = [];
  
   arguments.push("-i");
  
   arguments.push(fileName);
  
  
  
   arguments.push("-b:a");
  
   arguments.push(getBitrate());
  
  
  
   switch (getOutFormat()) {
  
       case "mp3":
  
           arguments.push("-acodec");
  
           arguments.push("libmp3lame");
  
           arguments.push("out.mp3");
  
           break;
  
  
  
       case "wma":
  
           arguments.push("-acodec");
  
           arguments.push("wmav1");
  
           arguments.push("out.asf");
  
           break;
  
  
  
       case "pcm":
  
           arguments.push("-f");
  
           arguments.push("s16le");
  
           arguments.push("-acodec");
  
           arguments.push("pcm_s16le");
  
           arguments.push("out.pcm");
  
   }
  
  
  
   ffmpegWorker.postMessage({
  
       type: "command",
  
       arguments: arguments,
  
       files: [
  
           {
  
               "name": fileName,
  
               "buffer": fileBuffer
  
           }
  
       ]
  
   });
  
  
  
  
  
  function getOutFormat() {
  
   return $('input[name=format]:checked').val();
  
  }
  
  
  
  function getBitrate() {
  
   return $('input[name=bitrate]:checked').val();
  
  }
  
  
  
  function readInputFile(file) {
  
  
  
  
  
   // load file content
  
   var reader = new FileReader();
  
   reader.onload = function(e) {
  
  
  
       fileName = file.name;
  
       console.log(fileName);
  
       fileBuffer = e.target.result;
  
   }
  
   reader.readAsArrayBuffer(file);
  
  
  
  }
  
  
  
  
  
  
  
  function handleFileSelect(event) {
  
   var files = event.target.files; // FileList object
  
   console.log(files);
  
   // files is a FileList of File objects. display first file name
  
   file = files[0];
  
   console.log(file);
  
   if (file) {
  
  
  
       readInputFile(file);
  
       console.log(file);
  
  
  
   }
  
   } 
  
  
  
   // setup input file listeners
  
   el=document.getElementById('inFile2');
  
  
  
   el.addEventListener('change',handleFileSelect, true);
  
  
  
   }

  note that this code was taken from a demo where the user upload the file to be converted by browisng it, I just want to cancel the browsing process and upload the saved file directly

• ffmpeg - escaping single quotes doesn't work [duplicate]

  18 septembre 2022, par XorOrNor

  I've written a small python script for mass converting audio files. It uses ffmpeg. The problem is it doesn't work for files with single quotes in their filenames.

  


  script :

  


  
import os
import subprocess
import sys
from multiprocessing.pool import ThreadPool as Pool

source_dir="/home/kris/Music/test"
output_dir="/home/kris/Music/test_opus"

def worker(file):

    try:    
        dirname=os.path.dirname(file)
        file=file.replace("'","\\\\'")
        filename=file.split('.flac')[0]
        
        input_file=f"'{source_dir}/{file}'"
        output_file=f"'{output_dir}/{filename}.opus'"
        cmd="ffmpeg -n -i "+input_file+" -c:a libopus -b:a 320k "+output_file
        print(cmd)
        result = subprocess.call(cmd,stdout=subprocess.PIPE,shell=True)
    except:
        print('item error')
        

def start():    
    threads=os.cpu_count()  
    pool = Pool(threads)
    files=os.listdir(source_dir)
    for item in files:
        pool.apply_async(worker, (item,))

    pool.close()
    pool.join()
        
start()



  


  Testing :

  


  


  1. Filename : I'm a file.flac

     


  


  2. When escaping single quote ' with double backslashes \\ - file=file.replace("'","\\\\'") the cmd for ffmpeg is :

     


  


  


  ffmpeg -n -i '/home/kris/Music/test/I\\'m a file.flac' -c:a libopus -b:a 320k '/home/kris/Music/test_opus/I\\'m a file.opus'


  


  ffmpeg returns an error : /home/kris/Music/test/I\\m: No such file or directory

  


  

  3. When escaping single quote ' with a single backslash \ - file=file.replace("'","\\'") the cmd for ffmpeg is :

  


  


  ffmpeg -n -i '/home/kris/Music/test/I\'m a file.flac' -c:a libopus -b:a 320k '/home/kris/Music/test_opus/I\'m a file.opus'


  


  I got an error :

  


  /bin/sh: 1: Syntax error: Unterminated quoted string


  


  According to ffmpeg docs : https://ffmpeg.org/ffmpeg-utils.html#toc-Examples escaping with single backslash should work.