question: public static GaplessInfo createFromComment ( String name , String data ) { if ( ! GAPLESS_COMMENT_ID . equals ( name ) ) { return null ; } Matcher matcher = GAPLESS_COMMENT_PATTERN . matcher ( data ) ; if ( matcher . find ( ) ) { try { int encoderDelay = Integer . parseInt ( matcher . group ( 1 ) , 16 ) ; int encoderPadding = Integer . parseInt ( matcher . group ( 2 ) , 16 ) ; return encoderDelay == 0 && encoderPadding == 0 ? null : new GaplessInfo ( encoderDelay , encoderPadding ) ; } catch ( NumberFormatException e ) { } } return null ; }
target:  Parses a gapless playback comment (stored in an ID3 header or MPEG 4 user data).