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• Updated generated docs

  17 septembre 2011, par Scott Schiller

  m doc/generated/script/soundmanager2.html Updated generated docs

• Upload FFmpeg output directly to Amazon S3

  26 octobre 2017, par user1790300

  I am using the fluent-ffmpeg library with node.js to transcode videos originally in a flash movie format to the mp3 format with multiple resolutions, 1080p, etc.. Once the transcoding is complete, I would like to move the transcoded video to an s3 bucket.

  I pull the original .flv file from a source s3 bucket and pass the stream to the ffmpeg constructor function. The issue is after the transcoding completes, how do I then get the stream of the mp4 data to send to s3.

  Here is the code I have so far :

          var params = {
  
              Bucket: process.env.SOURCE_BUCKET,
  
              Key: fileName
  
          };
  
          s3.getObject(params, function(err, data) {
  
              if (err) console.log(err, err.stack); // an error occurred
  
  
  
              var format = ffmpeg(data)
  
              .size('854x480')
  
              .videoCodec('libx264')
  
              .format('flv')
  
              .toFormat('mp4');
  
              .on('end', function () {
  
                  //Ideally, I would like to do the uploading here
  
  
  
                  var params = {
  
                     Body: //{This is my confusion, how do I get the stream to add here?},
  
                     Bucket: process.env.TRANSCODED_BUCKET,
  
                     Key: fileName
  
                  };
  
                  s3.putObject(params, function (err, data) {
  
  
  
                 });
  
              })
  
              .on('error', function (err) {
  
                  console.log('an error happened: ' + err.message);
  
              });
  
  
  
          });

  For the code above, where can I get the transcoded stream to add to the "Body" property of the params object ?

  Update :

  Here is a revision of what I am trying to do :

  var outputStream: MemoryStream = new MemoryStream();
  
  
  
          var proc = ffmpeg(currentStream)
  
              .size('1920x1080')
  
              .videoCodec('libx264')
  
              .format('avi')
  
              .toFormat('mp4')
  
              .output(outputStream)
  
              // setup event handlers
  
              .on('end', function () {
  
                  uploadFile(outputStream, "").then(function(){
  
                      resolve();
  
                  })
  
              })
  
              .on('error', function (err) {
  
                  console.log('an error happened: ' + err.message);
  
              });

  I would like to avoid copying the file to the local filesystem from s3, rather I would prefer to process the file in memory and upload back to s3 when finished. Would fluent-ffmpeg allow this scenario ?

• How to convert rtp codec in online to amr-nb/wb (octet-align = 0) by FFMPEG ?

  28 janvier 2019, par Mehdi Talebi

  rtp is received as input with different payload types such as amr-nb and WAVE.It is necessary to convert all of them to amr-wb but in bandwidth-align (NOT octet-align).
  I use this command to convert :

  ffmpeg -re -i rtp ://127.0.0.1:1235 -ar 16000 -ab 19.85k -acodec libvo_amrbenc -f rtp rtp rtp ://127.0.0.1:1236

  But the out put (SDP) is like this :

  1. v=0
  2. o=- 0 0 IN IP4 127.0.0.1
  3. s=No Name
  4. c=IN IP$ 127.0.0.1
  5. t=0.0
  6. a=tool:libvaformat 58.25.100
  7. m=audio 1236 RTP/AVP 97
  8. b=AS:19
  9. a=rtpmap:97 AMR-WB/16000/1
  10. a=fmtp:97 octet-align =1

  My problem is octet-align =1, i need octet-align = 0. Do you know any argument to set this in the command ?