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• Transcode Adobe Media Encoder live stream using FFMPEG in node.js

  23 juin 2014, par user2757842

  I am using Adobe media live encoder to send a stream up to the adobe media server. What I would like to do is take that stream and transcode it to a local file on my machine in another format other that .f4m

  Here is the code I have so far, it is built using FFmpeg within a node.js app :

  var ffmpeg = require('fluent-ffmpeg');
  
  var fs = require('fs');
  
  
  
  //make sure you set the correct path to your video file
  
  var inStream = fs.createReadStream('rtmp://localhost/livepkgr/livestream live=1'); // this is where the streams are stored
  
  var command = new ffmpeg({ source: inStream});
  
  
  
  //Set the path to where FFmpeg is installed
  
  command.setFfmpegPath("C:\\Users\\Jay\\Documents\\FFMPEG\\bin\\ffmpeg.exe");
  
  
  
  command
  
  //set the size
  
  .withSize('100%')
  
  
  
  // set fps
  
  .withFps(24)
  
  
  
  // set output format to force
  
  .toFormat('ismv')
  
  
  
  // setup event handlers
  
  .on('end', function() {
  
      console.log('file has been converted successfully');
  
  })
  
  .on('error', function(err) {
  
      console.log('an error happened: ' + err.message);
  
  })
  
  // save to file <-- the new file I want -->
  
  .saveToFile('rtmp://localhost/livepkgr/livestream1'); //this is where i want to store the newly converted stream

  I have it working with a local file but when I try it with my live stream, I get this error

  events.js:72
  
          throw er; // Unhandled 'error' event
  
                ^
  
  Error: ENOENT, open 'C:\Users\Jay\workspace\FFMPEGtest\rtmp:\localhost\livepkgr\livestream live=1'

  Anyone seen this before ?

• What does last line console output of ffplay mean

  18 juillet 2019, par Ankur

  I am playing a mp4 video using ffplay. While the video is playing the last line of console keeps updating some info

  ffplay version N-80219-g153ab83 on Windows10 machine.

  Below is the sample output

  "22.08 A-V : -0.036 fd= 8 aq= 11KB vq= 19KB sq= 0B f=0/0"

• Why UDP port fails only in Docker ?

  11 juillet 2019, par Sagi Mann

  I’ve got the following docker that streams out some sample sine wav via UDP port 1234 :

  from ubuntu
  
  RUN apt update
  
  RUN apt install -y ffmpeg
  
  EXPOSE 1234/udp
  
  CMD ffmpeg -re -f lavfi -i aevalsrc="sin(400*2*PI*t)" -ar 8000 -f mulaw -f rtp rtp://localhost:1234

  I run the container using :

  docker run -p 127.0.0.1:1234:1234/udp xxxx

  Now I try to open VLC and play that stream from my host machine using the stream URL rtp ://@:1234 as instructed by VLC. It plays nothing. Silence. However, if I run the same ffmpeg cmd from the host machine, it works and I can hear the sample.

  Any ideas what’s going on ?