if(continued){    if(os->lacing_fill<1 ||        os->lacing_vals[os->lacing_fill-1]==0x400){      bos=0;      for(;segptr<segments;segptr++){	int val=header[27+segptr];	body+=val;	bodysize-=val;	if(val<255){	  segptr++;	  break;	}      }    }  }    if(bodysize){    _os_body_expand(os,bodysize);    memcpy(os->body_data+os->body_fill,body,bodysize);    os->body_fill+=bodysize;  }  {    int saved=-1;    while(segptr<segments){      int val=header[27+segptr];      os->lacing_vals[os->lacing_fill]=val;      os->granule_vals[os->lacing_fill]=-1;            if(bos){	os->lacing_vals[os->lacing_fill]|=0x100;	bos=0;      }            if(val<255)saved=os->lacing_fill;            os->lacing_fill++;      segptr++;            if(val<255)os->lacing_packet=os->lacing_fill;    }      /* set the granulepos on the last granuleval of the last full packet */    if(saved!=-1){      os->granule_vals[saved]=granulepos;    }  }  if(eos){    os->e_o_s=1;    if(os->lacing_fill>0)      os->lacing_vals[os->lacing_fill-1]|=0x200;  }  os->pageno=pageno+1;  return(0);}/* clear things to an initial state.  Good to call, eg, before seeking */int ogg_sync_reset(ogg_sync_state *oy){  oy->fill=0;  oy->returned=0;  oy->unsynced=0;  oy->headerbytes=0;  oy->bodybytes=0;  return(0);}int ogg_stream_reset(ogg_stream_state *os){  os->body_fill=0;  os->body_returned=0;  os->lacing_fill=0;  os->lacing_packet=0;  os->lacing_returned=0;  os->header_fill=0;  os->e_o_s=0;  os->b_o_s=0;  os->pageno=-1;  os->packetno=0;  os->granulepos=0;  return(0);}int ogg_stream_reset_serialno(ogg_stream_state *os,int serialno){  ogg_stream_reset(os);  os->serialno=serialno;  return(0);}static int _packetout(ogg_stream_state *os,ogg_packet *op,int adv){  /* The last part of decode. We have the stream broken into packet     segments.  Now we need to group them into packets (or return the     out of sync markers) */  int ptr=os->lacing_returned;  if(os->lacing_packet<=ptr)return(0);  if(os->lacing_vals[ptr]&0x400){    /* we need to tell the codec there's a gap; it might need to       handle previous packet dependencies. */    os->lacing_returned++;    os->packetno++;    return(-1);  }  if(!op && !adv)return(1); /* just using peek as an inexpensive way                               to ask if there's a whole packet                               waiting */  /* Gather the whole packet. We'll have no holes or a partial packet */  {    int size=os->lacing_vals[ptr]&0xff;    int bytes=size;    int eos=os->lacing_vals[ptr]&0x200; /* last packet of the stream? */    int bos=os->lacing_vals[ptr]&0x100; /* first packet of the stream? */    while(size==255){      int val=os->lacing_vals[++ptr];      size=val&0xff;      if(val&0x200)eos=0x200;      bytes+=size;    }    if(op){      op->e_o_s=eos;      op->b_o_s=bos;      op->packet=os->body_data+os->body_returned;      op->packetno=os->packetno;      op->granulepos=os->granule_vals[ptr];      op->bytes=bytes;    }    if(adv){      os->body_returned+=bytes;      os->lacing_returned=ptr+1;      os->packetno++;    }  }  return(1);}int ogg_stream_packetout(ogg_stream_state *os,ogg_packet *op){  return _packetout(os,op,1);}int ogg_stream_packetpeek(ogg_stream_state *os,ogg_packet *op){  return _packetout(os,op,0);}void ogg_packet_clear(ogg_packet *op) {  _ogg_free(op->packet);  memset(op, 0, sizeof(*op));}#ifdef _V_SELFTEST#include <stdio.h>ogg_stream_state os_en, os_de;ogg_sync_state oy;void error(void){  fprintf(stderr,"error!\n");  exit(1);}/* 17 only */const int head1_0[] = {0x4f,0x67,0x67,0x53,0,0x06,		       0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,0,0,0,0,		       0x15,0xed,0xec,0x91,		       1,		       17};/* 17, 254, 255, 256, 500, 510, 600 byte, pad */const int head1_1[] = {0x4f,0x67,0x67,0x53,0,0x02,		       0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,0,0,0,0,		       0x59,0x10,0x6c,0x2c,		       1,		       17};const int head2_1[] = {0x4f,0x67,0x67,0x53,0,0x04,		       0x07,0x18,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,1,0,0,0,		       0x89,0x33,0x85,0xce,		       13,		       254,255,0,255,1,255,245,255,255,0,		       255,255,90};/* nil packets; beginning,middle,end */const int head1_2[] = {0x4f,0x67,0x67,0x53,0,0x02,		       0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,0,0,0,0,		       0xff,0x7b,0x23,0x17,		       1,		       0};const int head2_2[] = {0x4f,0x67,0x67,0x53,0,0x04,		       0x07,0x28,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,1,0,0,0,		       0x5c,0x3f,0x66,0xcb,		       17,		       17,254,255,0,0,255,1,0,255,245,255,255,0,		       255,255,90,0};/* large initial packet */const int head1_3[] = {0x4f,0x67,0x67,0x53,0,0x02,		       0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,0,0,0,0,		       0x01,0x27,0x31,0xaa,		       18,		       255,255,255,255,255,255,255,255,		       255,255,255,255,255,255,255,255,255,10};const int head2_3[] = {0x4f,0x67,0x67,0x53,0,0x04,		       0x07,0x08,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,1,0,0,0,		       0x7f,0x4e,0x8a,0xd2,		       4,		       255,4,255,0};/* continuing packet test */const int head1_4[] = {0x4f,0x67,0x67,0x53,0,0x02,		       0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,0,0,0,0,		       0xff,0x7b,0x23,0x17,		       1,		       0};const int head2_4[] = {0x4f,0x67,0x67,0x53,0,0x00,		       0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,		       0x01,0x02,0x03,0x04,1,0,0,0,		       0x54,0x05,0x51,0xc8,		       17,		       255,255,255,255,255,255,255,255,		       255,255,255,255,255,255,255,255,255};const int head3_4[] = {0x4f,0x67,0x67,0x53,0,0x05,		       0x07,0x0c,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,2,0,0,0,		       0xc8,0xc3,0xcb,0xed,		       5,		       10,255,4,255,0};/* page with the 255 segment limit */const int head1_5[] = {0x4f,0x67,0x67,0x53,0,0x02,		       0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,0,0,0,0,		       0xff,0x7b,0x23,0x17,		       1,		       0};const int head2_5[] = {0x4f,0x67,0x67,0x53,0,0x00,		       0x07,0xfc,0x03,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,1,0,0,0,		       0xed,0x2a,0x2e,0xa7,		       255,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10,10,		       10,10,10,10,10,10,10};const int head3_5[] = {0x4f,0x67,0x67,0x53,0,0x04,		       0x07,0x00,0x04,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,2,0,0,0,		       0x6c,0x3b,0x82,0x3d,		       1,		       50};/* packet that overspans over an entire page */const int head1_6[] = {0x4f,0x67,0x67,0x53,0,0x02,		       0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,0,0,0,0,		       0xff,0x7b,0x23,0x17,		       1,		       0};const int head2_6[] = {0x4f,0x67,0x67,0x53,0,0x00,		       0x07,0x04,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,1,0,0,0,		       0x3c,0xd9,0x4d,0x3f,		       17,		       100,255,255,255,255,255,255,255,255,		       255,255,255,255,255,255,255,255};const int head3_6[] = {0x4f,0x67,0x67,0x53,0,0x01,		       0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,		       0x01,0x02,0x03,0x04,2,0,0,0,		       0x01,0xd2,0xe5,0xe5,		       17,		       255,255,255,255,255,255,255,255,		       255,255,255,255,255,255,255,255,255};const int head4_6[] = {0x4f,0x67,0x67,0x53,0,0x05,		       0x07,0x10,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,3,0,0,0,		       0xef,0xdd,0x88,0xde,		       7,		       255,255,75,255,4,255,0};/* packet that overspans over an entire page */const int head1_7[] = {0x4f,0x67,0x67,0x53,0,0x02,		       0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,0,0,0,0,		       0xff,0x7b,0x23,0x17,		       1,		       0};const int head2_7[] = {0x4f,0x67,0x67,0x53,0,0x00,		       0x07,0x04,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,1,0,0,0,		       0x3c,0xd9,0x4d,0x3f,		       17,		       100,255,255,255,255,255,255,255,255,		       255,255,255,255,255,255,255,255};const int head3_7[] = {0x4f,0x67,0x67,0x53,0,0x05,		       0x07,0x08,0x00,0x00,0x00,0x00,0x00,0x00,		       0x01,0x02,0x03,0x04,2,0,0,0,		       0xd4,0xe0,0x60,0xe5,		       1,0};#endif