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• Sync voice with the music through ffmpeg. live karaoke FMS

  26 mars 2015, par LifeSoul

  Using the AMS (FMS) server.

  User voice broadcasts to the server.
  ffmpeg does mix of voice from rtmp and music from disk, and sends to the server

  The problem is that the voice or music, do not coincide in time.

  Is there a way to sync via ffmpeg ?

  Example

  -re -i DISK:/path/music.mp3 -i rtmp://x.x.x.x/karaoke/voice -filter_complex amix=inputs=2:duration=first,volume=2.000000 -ar 22050 -q:a 2 -ac 2 -f flv rtmp://x.x.x.x/karaoke/stream

  Time difference between 0.0-0.5 seconds (random)

• ffmpeg - make a slideshow images+music video with some transition effects

  8 septembre 2015, par Slim_user71169

  I can make a slideshow video like that but It’s just a simple image-to-image slideshow which has no effect. I don’t know how to add some transition effects into the video. For example : Fade in-out, 3D rotation, flip in-out, zoom in-out, bounce,...

• ffmpeg+php Add Music to video

  19 septembre 2013, par user2792392

  Dear Sir i create this code for simple video convert from one to another.
  i want to add more feature like
  ffmpeg+php Add Music to video

  how to do it ??
  convert request to begin encoding the video, and status request that retrieves
  * the current encoding status so the progress bar can be updated.
  *
  * The $outfile variable should be changed to an input value, but is set this way
  * for now for testing purposes.
  *
  * @ver 0.1
  */
  require 'config.php' ;
  require 'functions.php' ;

  //<<-- CHECK FOR ERRORS -->>//
  
  $type       = _chkVal('type', '');
  
  $fkey       = _chkVal('fkey', '');
  
  $infile     = _chkVal('filename', '');
  
  $outfile    = 'testing.mp4';
  
  $params     = _chkVal('params', '');
  
  
  
  // Check Request Type
  
  $validTypes = array('convert', 'status');
  
  
  
  if( !in_array($type, $validTypes) )
  
      json_response(array('fkey' => $fkey, 'msg' => 'Invalid process type!'), true);
  
  
  
  // $fkey will always be 8 characters.
  
  // It's created with PHP's hash() function using 'crc32' algorithm in index.php
  
  if( strlen($fkey) != 8 )
  
      json_response(array_merge(array('fkey' => '', 'msg' => 'Invalid fkey given!')), true);
  
  
  
  // Filename should be at least 5 (1 character + 4 character extension. EX : i.mp4)
  
  if( $type == 'convert' && ( strlen($infile) < 5) )
  
      json_response(array('fkey' => $fkey, 'msg' => 'Invalid input filename given!'), true);
  
  
  
  // Filename should be at least 5 (1 character + 4 character extension. EX : i.mp4)
  
  if( $type == 'convert' && ( strlen($outfile) < 5) )
  
      json_response(array('fkey' => $fkey, 'msg' => 'Invalid output filename given!'), true);
  
  
  
  if( $type == 'convert' && (strlen($params) < 1) )
  
      json_response(array('fkey' => $fkey, 'msg' => 'Invalid parameters given!'), true);
  
  
  
  //<<-- END OF ERROR CHECK -->>//
  
  
  
  
  
  $ffmpegConvert = new ffmpegConvert($fkey);
  
  
  
  
  
  //<<-- PROCESS REQUEST -->>//
  
  
  
  // Start the video conversion
  
  if( $type == 'convert' )
  
  {
  
      $ffmpegConvert->exec( $infile, $outfile, $params, $fkey );
  
      // Add 2 second delay to give the server time to start writing the status log,
  
      // otherwise $ffmpegConvert->jsonStatus() will trigger an error...
  
      sleep(2);
  
      $ffmpegConvert->jsonStatus();
  
  }
  
  
  
  // Check on video conversion progress
  
  if( $_POST['type'] == 'status' )
  
  {
  
      $ffmpegConvert->jsonStatus();
  
  }
  
  
  
  //<<-- END OF PROCESS REQUEST -->>//
  
  
  
  // Shouldn't get to this, but if so, let's send a message for debugging reasons....
  
  json_response(array('msg' => 'Unhandled request type!'), true);