Audio-Play-MPG123

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mpg123/mpg123.h  view on Meta::CPAN

};

struct bitstream_info {
  int bitindex;
  unsigned char *wordpointer;
};

struct mpstr {
  int bsize;
  int framesize;
  int fsizeold;
  struct frame fr;
 /* int (*do_layer)(struct mpstr *,struct frame *fr,int,struct audio_info_struct *); */
  unsigned char bsspace[2][MAXFRAMESIZE+512]; /* MAXFRAMESIZE */
  real hybrid_block[2][2][SBLIMIT*SSLIMIT];
  int  hybrid_blc[2];
  unsigned long header;
  int bsnum;
  real synth_buffs[2][2][0x110];
  int  synth_bo;

mpg123/mpglib/interface.c  view on Meta::CPAN

struct mpstr *gmp;


BOOL InitMP3(struct mpstr *mp) 
{
	static int init = 0;

	memset(mp,0,sizeof(struct mpstr));

	mp->framesize = 0;
	mp->fsizeold = -1;
	mp->bsize = 0;
	mp->head = mp->tail = NULL;
	mp->fr.single = -1;
	mp->bsnum = 0;
	mp->synth_bo = 1;

	if(!init) {
		init = 1;
		make_decode_tables(32767);
		init_layer2();

mpg123/mpglib/interface.c  view on Meta::CPAN

	    do_layer1(&mp->fr,(unsigned char *) out,done);
            break;
          case 2:
	    do_layer2(&mp->fr,(unsigned char *) out,done);
            break;
          case 3:
	    do_layer3(&mp->fr,(unsigned char *) out,done);
            break;
        }

	mp->fsizeold = mp->framesize;
	mp->framesize = 0;

	return MP3_OK;
}

int set_pointer(long backstep)
{
  unsigned char *bsbufold;
  if(gmp->fsizeold < 0 && backstep > 0) {
    fprintf(stderr,"Can't step back %ld!\n",backstep);
    return MP3_ERR;
  }
  bsbufold = gmp->bsspace[gmp->bsnum] + 512;
  wordpointer -= backstep;
  if (backstep)
    memcpy(wordpointer,bsbufold+gmp->fsizeold-backstep,backstep);
  bitindex = 0;
  return MP3_OK;
}

mpg123/mpglib/mpglib.h  view on Meta::CPAN

	struct buf *buf;
	long pos;
	struct frame *next;
	struct frame *prev;
};

struct mpstr {
	struct buf *head,*tail;
	int bsize;
	int framesize;
        int fsizeold;
	struct frame fr;
        unsigned char bsspace[2][MAXFRAMESIZE+512]; /* MAXFRAMESIZE */
	real hybrid_block[2][2][SBLIMIT*SSLIMIT];
	int hybrid_blc[2];
	unsigned long header;
	int bsnum;
	real synth_buffs[2][2][0x110];
        int  synth_bo;
};