EBML_ID_FLAGFORCED

[55][AA] -- Set if that track MUST be used during playback.

Value (hex)

0x15AA 

Usage

  1. if ( defined( 'EBML_ID_FLAGFORCED' ) ) { 
  2.  
  3. // grab the value 
  4. $value = constant( 'EBML_ID_FLAGFORCED' ); 
  5.  
  6. if ( !empty( $value ) ) { 
  7. // go forth and prosper... 
  8.  

Defined (1)

The constant is defined in the following location(s).

/lib/getid3/module.audio-video.matroska.php  
  1. define('EBML_ID_FLAGFORCED', 0x15AA); // [55][AA] -- Set if that track MUST be used during playback. There can be many forced track for a kind (audio, video or subs), the player should select the one which language matches the user preference or the default + forced track. Overlay MAY happen between a forced and non-forced track of the same kind.