io.vacco.libmp3lame.Jlame_internal_flags Maven / Gradle / Ivy

package io.vacco.libmp3lame;

// util.h

/********************************************************************
 * internal variables NOT set by calling program, and should not be *
 * modified by the calling program                                  *
 ********************************************************************/
final class Jlame_internal_flags {
  /*
   * Some remarks to the Class_ID field:
   * The Class ID is an Identifier for a pointer to this struct.
   * It is very unlikely that a pointer to lame_global_flags has the same 32 bits
   * in it's structure (large and other special properties, for instance prime).
   *
   * To test that the structure is right and initialized, use:
   *     if ( gfc -> Class_ID == LAME_ID ) ...
   * Other remark:
   *     If you set a flag to 0 for uninit data and 1 for init data, the right test
   *     should be "if (flag == 1)" and NOT "if (flag)". Unintended modification
   *     of this element will be otherwise misinterpreted as an init.
   */
  static final int LAME_ID = 0xFFF88E3B;
  int class_id;

  boolean lame_init_params_successful;
  boolean lame_encode_frame_init;
  boolean iteration_init_init;
  boolean fill_buffer_resample_init;

  final JSessionConfig cfg = new JSessionConfig();

  /* variables used by lame.c */
  final Jbitstream bs = new Jbitstream();
  final JIII_side_info l3_side = new JIII_side_info();

  final Jscalefac_struct scalefac_band = new Jscalefac_struct();

  final JPsyStateVar sv_psy = new JPsyStateVar(); /* DATA FROM PSYMODEL.C */
  final JPsyResult ov_psy = new JPsyResult();
  final JEncStateVar sv_enc = new JEncStateVar(); /* DATA FROM ENCODER.C */
  final JEncResult ov_enc = new JEncResult();
  final JQntStateVar sv_qnt = new JQntStateVar(); /* DATA FROM QUANTIZE.C */

  /* optional ID3 tags, used in id3tag.c  */
  final Jid3tag_spec tag_spec = new Jid3tag_spec();
  char nMusicCRC;

  // char _unused;

  final JVBR_seek_info VBR_seek_table = new JVBR_seek_info(); /* used for Xing VBR header */

  JATH ATH; /* all ATH related stuff */

  JPsyConst cd_psy;

  boolean is_lame_internal_flags_valid() {
    /* if( gfc == null ) {
    	return false;
    } */
    return this.class_id == Jlame_internal_flags.LAME_ID && this.lame_init_params_successful;
  }

  /*empty and close mallocs in gfc */

  final void free_id3tag() {
    this.tag_spec.language = "";
    this.tag_spec.title = null;
    this.tag_spec.artist = null;
    this.tag_spec.album = null;
    this.tag_spec.comment = null;

    this.tag_spec.albumart = null;
    // this.tag_spec.albumart_size = 0;
    this.tag_spec.albumart_mimetype = Jid3tag.MIMETYPE_NONE;

    if (this.tag_spec.v2_head != null) {
      JFrameDataNode node = this.tag_spec.v2_head;
      do {
        node.dsc = null;
        node.txt = null;
        node = node.nxt;
      } while (node != null);
      this.tag_spec.v2_head = null;
      this.tag_spec.v2_tail = null;
    }
  }

  private final void free_global_data() {
    if (
    /*gfc != null &&*/ this.cd_psy != null) {
      this.cd_psy.l.s3 = null;
      this.cd_psy.s.s3 = null;
      this.cd_psy = null;
      this.cd_psy = null;
    }
  }

  /* bit stream structure */
  final void freegfc() {
    for (int i = 0; i <= 2 * JEncStateVar.BPC; i++) {
      this.sv_enc.blackfilt[i] = null;
    }
    this.sv_enc.inbuf_old[0] = null;
    this.sv_enc.inbuf_old[1] = null;

    this.bs.buf = null;

    this.VBR_seek_table.bag = null;
    // this.VBR_seek_table.size = 0;

    this.ATH = null;

    this.sv_enc.in_buffer_0 = null;
    this.sv_enc.in_buffer_1 = null;

    free_id3tag();

    free_global_data();
  }
}