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• Determining Icecast2 version in current repository

  6 juillet 2016, par dbmitch

  I’ve been playing with streaming audio to icecast server from a Raspberry Pi 3 running Raspbian Jessie Lite. In an old post on the Raspberry Pi Forum a user pointed out the solution to streaming from ffmpeg to icecast was to use the -legacy_icecast 1 parameter

  The reason was

  "that Icecast2 from the repository is version 2.3.2"

  Now I’ve found a command that tells me the latest version available in the repository is 2.4.0-1.1+deb8u1

  The question I have is two part :

  1. How do I tell what version is in my current build ?
  2. If I want to use a newer icecast version in my compiled ffmpeg
     version or the currently installed avconv, will I need to recompile
     either or both, or will they use the new icecast automatically ?

  Thanks for any pointers

• Get current postion from videoview in Time format

  4 juin 2015, par Kalai Arasi

  I am writing an application to trim videos in android using FFMPEG. I need to give the values to the FFMPEG in time units like 00:00:10. Currently I have a videoview and two buttons. The first button is startTime and the second button is endTime. When ever the button is clicked I use the getCurrentPosition to get the current position of the video. I also have a MediaController attached to my videoview.

  Now the problem I am facing is that I get int value of the current position which I cannot pass to the FFMPEG how do I accurately convert this to get the value in Time units, so that I can pass it to FFMPEG to trim the video. I have given the code below for your reference. Is there any other way to get the current time other than this. Thanks in advance.

          tVideoView = (VideoView) findViewById(R.id.tVideoView);
  
          startBtn = (Button) findViewById(R.id.tStartBtn);
  
          endBtn = (Button) findViewById(R.id.tEndBtn);
  
          trimBtn = (Button) findViewById(R.id.trimBtn);
  
  
  
          tVideoView.setVideoPath(videoPath);
  
          duration = tVideoView.getDuration();
  
          mMedia = new MediaController(this);
  
  
  
          mMedia.setMediaPlayer(tVideoView);
  
          mMedia.setAnchorView(tVideoView);
  
          tVideoView.setMediaController(mMedia);
  
  
  
          startBtn.setOnClickListener(new View.OnClickListener() {
  
              @Override
  
              public void onClick(View v) {
  
                  startTime = tVideoView.getCurrentPosition();
  
                  startBtn.setText(String.valueOf(startTime));
  
              }
  
          });
  
  
  
          endBtn.setOnClickListener(new View.OnClickListener() {
  
              @Override
  
              public void onClick(View v) {
  
                  endTime = tVideoView.getCurrentPosition();
  
                  endBtn.setText(String.valueOf(endTime));
  
              }
  
          });

• get duration and current spot of ffmpeg stream

  20 juin 2016, par tonkku107

  I have code like this :

  var ffmpeg = spawn('ffmpeg' , [
  
    '-i', file,
  
    '-f', 's16le',
  
    '-ar', '48000',
  
    '-af', 'volume=0.5',
  
    '-ac', '2',
  
    'pipe:1'
  
  ], {stdio: ['pipe', 'pipe', 'ignore']});
  
  
  
  ffmpeg.stdout.once('readable', function() {
  
    stream.send(ffmpeg.stdout);
  
    console.log("Playback started");
  
  });
  
  
  
  ffmpeg.stdout.once('end', function(){
  
    console.log("Playback ended");
  
  });

  It takes a file, encodes it to opus and sends or pipes it to a stream.

  Is there any way I could get the full duration of the file and the current time/spot (like "1:23/3:21") ?