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  • Liste des distributions compatibles

    26 avril 2011, par

    Le tableau ci-dessous correspond à la liste des distributions Linux compatible avec le script d’installation automatique de MediaSPIP. Nom de la distributionNom de la versionNuméro de version Debian Squeeze 6.x.x Debian Weezy 7.x.x Debian Jessie 8.x.x Ubuntu The Precise Pangolin 12.04 LTS Ubuntu The Trusty Tahr 14.04
    Si vous souhaitez nous aider à améliorer cette liste, vous pouvez nous fournir un accès à une machine dont la distribution n’est pas citée ci-dessus ou nous envoyer le (...)

  • Installation en mode ferme

    4 février 2011, par

    Le mode ferme permet d’héberger plusieurs sites de type MediaSPIP en n’installant qu’une seule fois son noyau fonctionnel.
    C’est la méthode que nous utilisons sur cette même plateforme.
    L’utilisation en mode ferme nécessite de connaïtre un peu le mécanisme de SPIP contrairement à la version standalone qui ne nécessite pas réellement de connaissances spécifique puisque l’espace privé habituel de SPIP n’est plus utilisé.
    Dans un premier temps, vous devez avoir installé les mêmes fichiers que l’installation (...)

  • Automated installation script of MediaSPIP

    25 avril 2011, par

    To overcome the difficulties mainly due to the installation of server side software dependencies, an "all-in-one" installation script written in bash was created to facilitate this step on a server with a compatible Linux distribution.
    You must have access to your server via SSH and a root account to use it, which will install the dependencies. Contact your provider if you do not have that.
    The documentation of the use of this installation script is available here.
    The code of this (...)

Sur d’autres sites (3695)

  • audio file conversion using ffmpeg

    15 juillet 2014, par user3789242

    I’m building a voice recording project.so far I have succeeded in recording the voice as .wav audio file, and I’m using the ffmpeg for the user to be able to convert the audio file into a selected format (mp3, pcm, wma). What I want to do is to allow the user to select the format before recording the voice so that when stop recording the file will be saved in the selected format maybe by using ffmpeg conversion.

    I have been searching the net for weeks for any demo using JavaScript and html5 but can’t find any. What I have tried so far is to save the audio file in a folder using Ajax/php and I’m trying to call that file in order to convert it but this method is very complicated and is not working. Any suggestions please. If you can also help me with a demo it would be most appreciated. This is my code so far :

    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);
    

    
}

    This code is for the download link where the user will be able to download the audio file also the conversion function happening in it.

    As I said earlier the audio files are uploaded in a folder upload using Ajax.

  • building a voice recorder using html5 and javascript

    16 juillet 2014, par lama

    I want to build a voice recorder using HTML5 same as one found in gitHub JSSoundecorder, but what I want is for the user to be able to choose the file format before recording the voice.I can do this using ffmpeg. In other words the user must be able to select the audio format by check box (mp3,wma,pcm) and in the background code, the .wav file usually created by the program instead of displaying it, it should be converted by the format selected then displayed in the new format.this is the ffmpeg code we can use ,but I don’t know how to get the .wav audio file to convert it and show it.please if someone have ideas,or if can find demos I have been looking for weeks.this is the ffmpeg code :

       var fileName;
    
   var fileBuffer;
    

    
   function timeToSeconds(time) {
    
      var parts = time.split(":");
    
      return parseFloat(parts[0]) * 60 * 60 + parseFloat(parts[1]) * 60 + parseFloat(parts[2]) + parseFloat("0." + parts[3]);
    
  }
    

    
  // create ffmpeg worker
    
  function getFFMPEGWorker() {
    
      // regexps for extracting time from ffmpeg logs
    
      var durationRegexp = /Duration: (.*?), /
    
      var timeRegexp = /time=(.*?) /;
    
      var duration;
    

    
      var ffmpegWorker = new Worker('worker.js');
    
      var durationLine;
    
      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
    
              $('#loading').hide();
    
          } else if (message.type == "stdout") {
    
              console.log(message.data);
    
          } else if (message.type == "stderr") {
    
              console.log(message.data);
    
              // try to extract duration
    
              if (durationRegexp.exec(message.data)) {
    
                  duration = timeToSeconds(durationRegexp.exec(message.data)[1]);
    
              }
    
              // try to extract time
    
              if (timeRegexp.exec(message.data)) {
    
                  var time = timeToSeconds(timeRegexp.exec(message.data)[1]);
    
                  if (duration) {
    
                      $("#progress").text("Progress: " + Math.floor(time / duration * 100) + "%");
    
                      $("#progress").show();
    
                  }
    
              }
    
          } else if (message.type == "done") {
    
              var code = message.data.code;
    

    
             console.log(message.data);
    
              var outFileNames = Object.keys(message.data.outputFiles);
    

    
              console.log(outFileNames);
    
              if (code == 0 && outFileNames.length) {
    
                  var outFileName = outFileNames[0];
    

    
                  var outFileBuffer = message.data.outputFiles[outFileName];
    

    
                  var src = window.URL.createObjectURL(new Blob([outFileBuffer]));
    

    
                  $("#downloadLink").attr('href', src);
    
                  $("#download").show();
    
              } else {
    
                  $("#error").show();
    
              }
    
              $("#converting").hide();
    
              $("#progress").hide();
    
          }
    
      }, false);
    
      return ffmpegWorker;
    
   }
    

    
   // create ffmpeg worker
    
   var ffmpegWorker = getFFMPEGWorker();
    
   var ffmpegRunning = false;
    

    
   $('#convert').click(function() {
    
      // terminate existing worker
    
      if (ffmpegRunning) {
    
          ffmpegWorker.terminate();
    
          ffmpegWorker = getFFMPEGWorker();
    
      }
    
      ffmpegRunning = true;
    

    
      // display converting animation
    
      $("#converting").show();
    
      $("#error").hide();
    

    
      // hide download div
    
      $("#download").hide();
    

    
      // change download file name
    
      var fileNameExt = fileName.substr(fileName.lastIndexOf('.') + 1);
    

    
      var outFileName = fileName.substr(0, fileName.lastIndexOf('.')) + "." + getOutFormat();
    

    
        $("#downloadLink").attr("download", outFileName);
    
      $("#downloadLink").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();
    
  }
    

    
  // disable conversion at start
    
  $('#convert').attr('disabled', 'true');
    

    
  function readInputFile(file) {
    
      // disable conversion for the time of file loading
    
      $('#convert').attr('disabled', 'true');
    

    
      // load file content
    
      var reader = new FileReader();
    
      reader.onload = function(e) {
    
          $('#convert').removeAttr('disabled');
    
          fileName = file.name;
    
        console.log(fileName);
    
          fileBuffer = e.target.result;
    
      }
    
      reader.readAsArrayBuffer(file);
    

    
  }
    

    
  // reset file selector at start
    
  function resetInputFile() {
    
      $("#inFile").wrap('<form>').closest('form').get(0).reset();
    
      $("#inFile").unwrap();
    
  }
    
  resetInputFile();
    

    
  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) {
    
          $("#drop").text("Drop file here");
    
          readInputFile(file);
    

    

    
      }
    
  }
    

    

    
  // setup input file listeners
    

    
  document.getElementById('inFile').addEventListener('change', handleFileSelect, false);
    
</form>

  • wrong play audio sasamples

    7 août 2014, par Ivan Lisovich

    I have a problem with a ffmpeg and NAudio libs.
    I worked with the old ffmpeg library and there the audio plays correctly.
    read video in manage c++

    // Read frames and save to list audio frames
    
while(av_read_frame(pFormatCtx, &amp;packet) >= 0) 
    
{
    
    if(packet.stream_index == videoStream) 
    
    {
    
        // reade image
    
    }
    
    else if(packet.stream_index == audioStream) 
    
    {
    
        int b = av_dup_packet(&amp;packet);
    
        if(b >= 0) {
    
            int audio_pkt_size = packet.size;
    
            libffmpeg::uint8_t* audio_pkt_data = packet.data;
    
            while(audio_pkt_size > 0) 
    
            {
    
                int got_frame = 0;
    
                int len1 = libffmpeg::avcodec_decode_audio4(aCodecCtx, &amp;frame, &amp;got_frame, &amp;packet);
    
                if(len1 &lt; 0)
    
                {
    
                    /* if error, skip frame */
    
                    audio_pkt_size = 0;
    
                    break;
    
                }
    
                audio_pkt_data += len1;
    
                audio_pkt_size -= len1;
    
                if (got_frame)
    
                {
    
                    int data_size = libffmpeg::av_samples_get_buffer_size ( NULL, aCodecCtx->channels, frame.nb_samples, aCodecCtx->sample_fmt, 1 );
    
                    array<byte>^ managedBuf = gcnew array<byte>(data_size);
    
                    System::IntPtr iptr = System::IntPtr( frame.data[0] );
    
                    System::Runtime::InteropServices::Marshal::Copy( iptr, managedBuf, 0, data_size );
    
                    audioData->Add(managedBuf);
    
                }
    
            }
    
        }
    
    }
    
    // Free the packet that was allocated by av_read_frame
    
    libffmpeg::av_free_packet(&amp;packet);
    
}
    
</byte></byte>

    I return audioData to c# code and play in NAudio library
    play in c#

    var recordingFormat = new WaveFormat(reader.SampleRate, 16, reader.Channels);
    
var waveProvider = new BufferedWaveProvider(recordingFormat) { DiscardOnBufferOverflow = true, BufferDuration = TimeSpan.FromMilliseconds(10000) };
    
var waveOut = new DirectSoundOut();
    
waveOut.Init(waveProvider);
    
waveOut.Play();
    
foreach (byte[] data in audioData)
    
{
    
    waveProvider.AddSamples(data, 0, data.Length);
    
}

    but audio not playing.
    what am I doing wrong ?

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