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-rw-r--r--libogg/framing.c2140
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diff --git a/libogg/framing.c b/libogg/framing.c
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+++ b/libogg/framing.c
@@ -0,0 +1,2140 @@
+/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE Ogg CONTAINER SOURCE CODE. *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * *
+ * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2010 *
+ * by the Xiph.Org Foundation http://www.xiph.org/ *
+ * *
+ ********************************************************************
+
+ function: code raw packets into framed OggSquish stream and
+ decode Ogg streams back into raw packets
+ last mod: $Id$
+
+ note: The CRC code is directly derived from public domain code by
+ Ross Williams (ross@guest.adelaide.edu.au). See docs/framing.html
+ for details.
+
+ ********************************************************************/
+
+#include <stdlib.h>
+#include <limits.h>
+#include <string.h>
+#include "ogg.h"
+
+/* A complete description of Ogg framing exists in docs/framing.html */
+
+int ogg_page_version(const ogg_page *og){
+ return((int)(og->header[4]));
+}
+
+int ogg_page_continued(const ogg_page *og){
+ return((int)(og->header[5]&0x01));
+}
+
+int ogg_page_bos(const ogg_page *og){
+ return((int)(og->header[5]&0x02));
+}
+
+int ogg_page_eos(const ogg_page *og){
+ return((int)(og->header[5]&0x04));
+}
+
+ogg_int64_t ogg_page_granulepos(const ogg_page *og){
+ unsigned char *page=og->header;
+ ogg_int64_t granulepos=page[13]&(0xff);
+ granulepos= (granulepos<<8)|(page[12]&0xff);
+ granulepos= (granulepos<<8)|(page[11]&0xff);
+ granulepos= (granulepos<<8)|(page[10]&0xff);
+ granulepos= (granulepos<<8)|(page[9]&0xff);
+ granulepos= (granulepos<<8)|(page[8]&0xff);
+ granulepos= (granulepos<<8)|(page[7]&0xff);
+ granulepos= (granulepos<<8)|(page[6]&0xff);
+ return(granulepos);
+}
+
+int ogg_page_serialno(const ogg_page *og){
+ return(og->header[14] |
+ (og->header[15]<<8) |
+ (og->header[16]<<16) |
+ (og->header[17]<<24));
+}
+
+long ogg_page_pageno(const ogg_page *og){
+ return(og->header[18] |
+ (og->header[19]<<8) |
+ (og->header[20]<<16) |
+ (og->header[21]<<24));
+}
+
+
+
+/* returns the number of packets that are completed on this page (if
+ the leading packet is begun on a previous page, but ends on this
+ page, it's counted */
+
+/* NOTE:
+ If a page consists of a packet begun on a previous page, and a new
+ packet begun (but not completed) on this page, the return will be:
+ ogg_page_packets(page) ==1,
+ ogg_page_continued(page) !=0
+
+ If a page happens to be a single packet that was begun on a
+ previous page, and spans to the next page (in the case of a three or
+ more page packet), the return will be:
+ ogg_page_packets(page) ==0,
+ ogg_page_continued(page) !=0
+*/
+
+int ogg_page_packets(const ogg_page *og){
+ int i,n=og->header[26],count=0;
+ for(i=0;i<n;i++)
+ if(og->header[27+i]<255)count++;
+ return(count);
+}
+
+
+#if 0
+/* helper to initialize lookup for direct-table CRC (illustrative; we
+ use the static init below) */
+
+static ogg_uint32_t _ogg_crc_entry(unsigned long index){
+ int i;
+ unsigned long r;
+
+ r = index << 24;
+ for (i=0; i<8; i++)
+ if (r & 0x80000000UL)
+ r = (r << 1) ^ 0x04c11db7; /* The same as the ethernet generator
+ polynomial, although we use an
+ unreflected alg and an init/final
+ of 0, not 0xffffffff */
+ else
+ r<<=1;
+ return (r & 0xffffffffUL);
+}
+#endif
+
+static const ogg_uint32_t crc_lookup[256]={
+ 0x00000000,0x04c11db7,0x09823b6e,0x0d4326d9,
+ 0x130476dc,0x17c56b6b,0x1a864db2,0x1e475005,
+ 0x2608edb8,0x22c9f00f,0x2f8ad6d6,0x2b4bcb61,
+ 0x350c9b64,0x31cd86d3,0x3c8ea00a,0x384fbdbd,
+ 0x4c11db70,0x48d0c6c7,0x4593e01e,0x4152fda9,
+ 0x5f15adac,0x5bd4b01b,0x569796c2,0x52568b75,
+ 0x6a1936c8,0x6ed82b7f,0x639b0da6,0x675a1011,
+ 0x791d4014,0x7ddc5da3,0x709f7b7a,0x745e66cd,
+ 0x9823b6e0,0x9ce2ab57,0x91a18d8e,0x95609039,
+ 0x8b27c03c,0x8fe6dd8b,0x82a5fb52,0x8664e6e5,
+ 0xbe2b5b58,0xbaea46ef,0xb7a96036,0xb3687d81,
+ 0xad2f2d84,0xa9ee3033,0xa4ad16ea,0xa06c0b5d,
+ 0xd4326d90,0xd0f37027,0xddb056fe,0xd9714b49,
+ 0xc7361b4c,0xc3f706fb,0xceb42022,0xca753d95,
+ 0xf23a8028,0xf6fb9d9f,0xfbb8bb46,0xff79a6f1,
+ 0xe13ef6f4,0xe5ffeb43,0xe8bccd9a,0xec7dd02d,
+ 0x34867077,0x30476dc0,0x3d044b19,0x39c556ae,
+ 0x278206ab,0x23431b1c,0x2e003dc5,0x2ac12072,
+ 0x128e9dcf,0x164f8078,0x1b0ca6a1,0x1fcdbb16,
+ 0x018aeb13,0x054bf6a4,0x0808d07d,0x0cc9cdca,
+ 0x7897ab07,0x7c56b6b0,0x71159069,0x75d48dde,
+ 0x6b93dddb,0x6f52c06c,0x6211e6b5,0x66d0fb02,
+ 0x5e9f46bf,0x5a5e5b08,0x571d7dd1,0x53dc6066,
+ 0x4d9b3063,0x495a2dd4,0x44190b0d,0x40d816ba,
+ 0xaca5c697,0xa864db20,0xa527fdf9,0xa1e6e04e,
+ 0xbfa1b04b,0xbb60adfc,0xb6238b25,0xb2e29692,
+ 0x8aad2b2f,0x8e6c3698,0x832f1041,0x87ee0df6,
+ 0x99a95df3,0x9d684044,0x902b669d,0x94ea7b2a,
+ 0xe0b41de7,0xe4750050,0xe9362689,0xedf73b3e,
+ 0xf3b06b3b,0xf771768c,0xfa325055,0xfef34de2,
+ 0xc6bcf05f,0xc27dede8,0xcf3ecb31,0xcbffd686,
+ 0xd5b88683,0xd1799b34,0xdc3abded,0xd8fba05a,
+ 0x690ce0ee,0x6dcdfd59,0x608edb80,0x644fc637,
+ 0x7a089632,0x7ec98b85,0x738aad5c,0x774bb0eb,
+ 0x4f040d56,0x4bc510e1,0x46863638,0x42472b8f,
+ 0x5c007b8a,0x58c1663d,0x558240e4,0x51435d53,
+ 0x251d3b9e,0x21dc2629,0x2c9f00f0,0x285e1d47,
+ 0x36194d42,0x32d850f5,0x3f9b762c,0x3b5a6b9b,
+ 0x0315d626,0x07d4cb91,0x0a97ed48,0x0e56f0ff,
+ 0x1011a0fa,0x14d0bd4d,0x19939b94,0x1d528623,
+ 0xf12f560e,0xf5ee4bb9,0xf8ad6d60,0xfc6c70d7,
+ 0xe22b20d2,0xe6ea3d65,0xeba91bbc,0xef68060b,
+ 0xd727bbb6,0xd3e6a601,0xdea580d8,0xda649d6f,
+ 0xc423cd6a,0xc0e2d0dd,0xcda1f604,0xc960ebb3,
+ 0xbd3e8d7e,0xb9ff90c9,0xb4bcb610,0xb07daba7,
+ 0xae3afba2,0xaafbe615,0xa7b8c0cc,0xa379dd7b,
+ 0x9b3660c6,0x9ff77d71,0x92b45ba8,0x9675461f,
+ 0x8832161a,0x8cf30bad,0x81b02d74,0x857130c3,
+ 0x5d8a9099,0x594b8d2e,0x5408abf7,0x50c9b640,
+ 0x4e8ee645,0x4a4ffbf2,0x470cdd2b,0x43cdc09c,
+ 0x7b827d21,0x7f436096,0x7200464f,0x76c15bf8,
+ 0x68860bfd,0x6c47164a,0x61043093,0x65c52d24,
+ 0x119b4be9,0x155a565e,0x18197087,0x1cd86d30,
+ 0x029f3d35,0x065e2082,0x0b1d065b,0x0fdc1bec,
+ 0x3793a651,0x3352bbe6,0x3e119d3f,0x3ad08088,
+ 0x2497d08d,0x2056cd3a,0x2d15ebe3,0x29d4f654,
+ 0xc5a92679,0xc1683bce,0xcc2b1d17,0xc8ea00a0,
+ 0xd6ad50a5,0xd26c4d12,0xdf2f6bcb,0xdbee767c,
+ 0xe3a1cbc1,0xe760d676,0xea23f0af,0xeee2ed18,
+ 0xf0a5bd1d,0xf464a0aa,0xf9278673,0xfde69bc4,
+ 0x89b8fd09,0x8d79e0be,0x803ac667,0x84fbdbd0,
+ 0x9abc8bd5,0x9e7d9662,0x933eb0bb,0x97ffad0c,
+ 0xafb010b1,0xab710d06,0xa6322bdf,0xa2f33668,
+ 0xbcb4666d,0xb8757bda,0xb5365d03,0xb1f740b4};
+
+/* init the encode/decode logical stream state */
+
+int ogg_stream_init(ogg_stream_state *os,int serialno){
+ if(os){
+ memset(os,0,sizeof(*os));
+ os->body_storage=16*1024;
+ os->lacing_storage=1024;
+
+ os->body_data=_ogg_malloc(os->body_storage*sizeof(*os->body_data));
+ os->lacing_vals=_ogg_malloc(os->lacing_storage*sizeof(*os->lacing_vals));
+ os->granule_vals=_ogg_malloc(os->lacing_storage*sizeof(*os->granule_vals));
+
+ if(!os->body_data || !os->lacing_vals || !os->granule_vals){
+ ogg_stream_clear(os);
+ return -1;
+ }
+
+ os->serialno=serialno;
+
+ return(0);
+ }
+ return(-1);
+}
+
+/* async/delayed error detection for the ogg_stream_state */
+int ogg_stream_check(ogg_stream_state *os){
+ if(!os || !os->body_data) return -1;
+ return 0;
+}
+
+/* _clear does not free os, only the non-flat storage within */
+int ogg_stream_clear(ogg_stream_state *os){
+ if(os){
+ if(os->body_data)_ogg_free(os->body_data);
+ if(os->lacing_vals)_ogg_free(os->lacing_vals);
+ if(os->granule_vals)_ogg_free(os->granule_vals);
+
+ memset(os,0,sizeof(*os));
+ }
+ return(0);
+}
+
+int ogg_stream_destroy(ogg_stream_state *os){
+ if(os){
+ ogg_stream_clear(os);
+ _ogg_free(os);
+ }
+ return(0);
+}
+
+/* Helpers for ogg_stream_encode; this keeps the structure and
+ what's happening fairly clear */
+
+static int _os_body_expand(ogg_stream_state *os,long needed){
+ if(os->body_storage-needed<=os->body_fill){
+ long body_storage;
+ void *ret;
+ if(os->body_storage>LONG_MAX-needed){
+ ogg_stream_clear(os);
+ return -1;
+ }
+ body_storage=os->body_storage+needed;
+ if(body_storage<LONG_MAX-1024)body_storage+=1024;
+ ret=_ogg_realloc(os->body_data,body_storage*sizeof(*os->body_data));
+ if(!ret){
+ ogg_stream_clear(os);
+ return -1;
+ }
+ os->body_storage=body_storage;
+ os->body_data=ret;
+ }
+ return 0;
+}
+
+static int _os_lacing_expand(ogg_stream_state *os,long needed){
+ if(os->lacing_storage-needed<=os->lacing_fill){
+ long lacing_storage;
+ void *ret;
+ if(os->lacing_storage>LONG_MAX-needed){
+ ogg_stream_clear(os);
+ return -1;
+ }
+ lacing_storage=os->lacing_storage+needed;
+ if(lacing_storage<LONG_MAX-32)lacing_storage+=32;
+ ret=_ogg_realloc(os->lacing_vals,lacing_storage*sizeof(*os->lacing_vals));
+ if(!ret){
+ ogg_stream_clear(os);
+ return -1;
+ }
+ os->lacing_vals=ret;
+ ret=_ogg_realloc(os->granule_vals,lacing_storage*
+ sizeof(*os->granule_vals));
+ if(!ret){
+ ogg_stream_clear(os);
+ return -1;
+ }
+ os->granule_vals=ret;
+ os->lacing_storage=lacing_storage;
+ }
+ return 0;
+}
+
+/* checksum the page */
+/* Direct table CRC; note that this will be faster in the future if we
+ perform the checksum simultaneously with other copies */
+
+void ogg_page_checksum_set(ogg_page *og){
+ if(og){
+ ogg_uint32_t crc_reg=0;
+ int i;
+
+ /* safety; needed for API behavior, but not framing code */
+ og->header[22]=0;
+ og->header[23]=0;
+ og->header[24]=0;
+ og->header[25]=0;
+
+ for(i=0;i<og->header_len;i++)
+ crc_reg=(crc_reg<<8)^crc_lookup[((crc_reg >> 24)&0xff)^og->header[i]];
+ for(i=0;i<og->body_len;i++)
+ crc_reg=(crc_reg<<8)^crc_lookup[((crc_reg >> 24)&0xff)^og->body[i]];
+
+ og->header[22]=(unsigned char)(crc_reg&0xff);
+ og->header[23]=(unsigned char)((crc_reg>>8)&0xff);
+ og->header[24]=(unsigned char)((crc_reg>>16)&0xff);
+ og->header[25]=(unsigned char)((crc_reg>>24)&0xff);
+ }
+}
+
+/* submit data to the internal buffer of the framing engine */
+int ogg_stream_iovecin(ogg_stream_state *os, ogg_iovec_t *iov, int count,
+ long e_o_s, ogg_int64_t granulepos){
+
+ long bytes = 0, lacing_vals;
+ int i;
+
+ if(ogg_stream_check(os)) return -1;
+ if(!iov) return 0;
+
+ for (i = 0; i < count; ++i){
+ if(iov[i].iov_len>LONG_MAX) return -1;
+ if(bytes>LONG_MAX-(long)iov[i].iov_len) return -1;
+ bytes += (long)iov[i].iov_len;
+ }
+ lacing_vals=bytes/255+1;
+
+ if(os->body_returned){
+ /* advance packet data according to the body_returned pointer. We
+ had to keep it around to return a pointer into the buffer last
+ call */
+
+ os->body_fill-=os->body_returned;
+ if(os->body_fill)
+ memmove(os->body_data,os->body_data+os->body_returned,
+ os->body_fill);
+ os->body_returned=0;
+ }
+
+ /* make sure we have the buffer storage */
+ if(_os_body_expand(os,bytes) || _os_lacing_expand(os,lacing_vals))
+ return -1;
+
+ /* Copy in the submitted packet. Yes, the copy is a waste; this is
+ the liability of overly clean abstraction for the time being. It
+ will actually be fairly easy to eliminate the extra copy in the
+ future */
+
+ for (i = 0; i < count; ++i) {
+ memcpy(os->body_data+os->body_fill, iov[i].iov_base, iov[i].iov_len);
+ os->body_fill += (int)iov[i].iov_len;
+ }
+
+ /* Store lacing vals for this packet */
+ for(i=0;i<lacing_vals-1;i++){
+ os->lacing_vals[os->lacing_fill+i]=255;
+ os->granule_vals[os->lacing_fill+i]=os->granulepos;
+ }
+ os->lacing_vals[os->lacing_fill+i]=bytes%255;
+ os->granulepos=os->granule_vals[os->lacing_fill+i]=granulepos;
+
+ /* flag the first segment as the beginning of the packet */
+ os->lacing_vals[os->lacing_fill]|= 0x100;
+
+ os->lacing_fill+=lacing_vals;
+
+ /* for the sake of completeness */
+ os->packetno++;
+
+ if(e_o_s)os->e_o_s=1;
+
+ return(0);
+}
+
+int ogg_stream_packetin(ogg_stream_state *os,ogg_packet *op){
+ ogg_iovec_t iov;
+ iov.iov_base = op->packet;
+ iov.iov_len = op->bytes;
+ return ogg_stream_iovecin(os, &iov, 1, op->e_o_s, op->granulepos);
+}
+
+/* Conditionally flush a page; force==0 will only flush nominal-size
+ pages, force==1 forces us to flush a page regardless of page size
+ so long as there's any data available at all. */
+static int ogg_stream_flush_i(ogg_stream_state *os,ogg_page *og, int force, int nfill){
+ int i;
+ int vals=0;
+ int maxvals=(os->lacing_fill>255?255:os->lacing_fill);
+ int bytes=0;
+ long acc=0;
+ ogg_int64_t granule_pos=-1;
+
+ if(ogg_stream_check(os)) return(0);
+ if(maxvals==0) return(0);
+
+ /* construct a page */
+ /* decide how many segments to include */
+
+ /* If this is the initial header case, the first page must only include
+ the initial header packet */
+ if(os->b_o_s==0){ /* 'initial header page' case */
+ granule_pos=0;
+ for(vals=0;vals<maxvals;vals++){
+ if((os->lacing_vals[vals]&0x0ff)<255){
+ vals++;
+ break;
+ }
+ }
+ }else{
+
+ /* The extra packets_done, packet_just_done logic here attempts to do two things:
+ 1) Don't unneccessarily span pages.
+ 2) Unless necessary, don't flush pages if there are less than four packets on
+ them; this expands page size to reduce unneccessary overhead if incoming packets
+ are large.
+ These are not necessary behaviors, just 'always better than naive flushing'
+ without requiring an application to explicitly request a specific optimized
+ behavior. We'll want an explicit behavior setup pathway eventually as well. */
+
+ int packets_done=0;
+ int packet_just_done=0;
+ for(vals=0;vals<maxvals;vals++){
+ if(acc>nfill && packet_just_done>=4){
+ force=1;
+ break;
+ }
+ acc+=os->lacing_vals[vals]&0x0ff;
+ if((os->lacing_vals[vals]&0xff)<255){
+ granule_pos=os->granule_vals[vals];
+ packet_just_done=++packets_done;
+ }else
+ packet_just_done=0;
+ }
+ if(vals==255)force=1;
+ }
+
+ if(!force) return(0);
+
+ /* construct the header in temp storage */
+ memcpy(os->header,"OggS",4);
+
+ /* stream structure version */
+ os->header[4]=0x00;
+
+ /* continued packet flag? */
+ os->header[5]=0x00;
+ if((os->lacing_vals[0]&0x100)==0)os->header[5]|=0x01;
+ /* first page flag? */
+ if(os->b_o_s==0)os->header[5]|=0x02;
+ /* last page flag? */
+ if(os->e_o_s && os->lacing_fill==vals)os->header[5]|=0x04;
+ os->b_o_s=1;
+
+ /* 64 bits of PCM position */
+ for(i=6;i<14;i++){
+ os->header[i]=(unsigned char)(granule_pos&0xff);
+ granule_pos>>=8;
+ }
+
+ /* 32 bits of stream serial number */
+ {
+ long serialno=os->serialno;
+ for(i=14;i<18;i++){
+ os->header[i]=(unsigned char)(serialno&0xff);
+ serialno>>=8;
+ }
+ }
+
+ /* 32 bits of page counter (we have both counter and page header
+ because this val can roll over) */
+ if(os->pageno==-1)os->pageno=0; /* because someone called
+ stream_reset; this would be a
+ strange thing to do in an
+ encode stream, but it has
+ plausible uses */
+ {
+ long pageno=os->pageno++;
+ for(i=18;i<22;i++){
+ os->header[i]=(unsigned char)(pageno&0xff);
+ pageno>>=8;
+ }
+ }
+
+ /* zero for computation; filled in later */
+ os->header[22]=0;
+ os->header[23]=0;
+ os->header[24]=0;
+ os->header[25]=0;
+
+ /* segment table */
+ os->header[26]=(unsigned char)(vals&0xff);
+ for(i=0;i<vals;i++)
+ bytes+=os->header[i+27]=(unsigned char)(os->lacing_vals[i]&0xff);
+
+ /* set pointers in the ogg_page struct */
+ og->header=os->header;
+ og->header_len=os->header_fill=vals+27;
+ og->body=os->body_data+os->body_returned;
+ og->body_len=bytes;
+
+ /* advance the lacing data and set the body_returned pointer */
+
+ os->lacing_fill-=vals;
+ memmove(os->lacing_vals,os->lacing_vals+vals,os->lacing_fill*sizeof(*os->lacing_vals));
+ memmove(os->granule_vals,os->granule_vals+vals,os->lacing_fill*sizeof(*os->granule_vals));
+ os->body_returned+=bytes;
+
+ /* calculate the checksum */
+
+ ogg_page_checksum_set(og);
+
+ /* done */
+ return(1);
+}
+
+/* This will flush remaining packets into a page (returning nonzero),
+ even if there is not enough data to trigger a flush normally
+ (undersized page). If there are no packets or partial packets to
+ flush, ogg_stream_flush returns 0. Note that ogg_stream_flush will
+ try to flush a normal sized page like ogg_stream_pageout; a call to
+ ogg_stream_flush does not guarantee that all packets have flushed.
+ Only a return value of 0 from ogg_stream_flush indicates all packet
+ data is flushed into pages.
+
+ since ogg_stream_flush will flush the last page in a stream even if
+ it's undersized, you almost certainly want to use ogg_stream_pageout
+ (and *not* ogg_stream_flush) unless you specifically need to flush
+ a page regardless of size in the middle of a stream. */
+
+int ogg_stream_flush(ogg_stream_state *os,ogg_page *og){
+ return ogg_stream_flush_i(os,og,1,4096);
+}
+
+/* Like the above, but an argument is provided to adjust the nominal
+ page size for applications which are smart enough to provide their
+ own delay based flushing */
+
+int ogg_stream_flush_fill(ogg_stream_state *os,ogg_page *og, int nfill){
+ return ogg_stream_flush_i(os,og,1,nfill);
+}
+
+/* This constructs pages from buffered packet segments. The pointers
+returned are to static buffers; do not free. The returned buffers are
+good only until the next call (using the same ogg_stream_state) */
+
+int ogg_stream_pageout(ogg_stream_state *os, ogg_page *og){
+ int force=0;
+ if(ogg_stream_check(os)) return 0;
+
+ if((os->e_o_s&&os->lacing_fill) || /* 'were done, now flush' case */
+ (os->lacing_fill&&!os->b_o_s)) /* 'initial header page' case */
+ force=1;
+
+ return(ogg_stream_flush_i(os,og,force,4096));
+}
+
+/* Like the above, but an argument is provided to adjust the nominal
+page size for applications which are smart enough to provide their
+own delay based flushing */
+
+int ogg_stream_pageout_fill(ogg_stream_state *os, ogg_page *og, int nfill){
+ int force=0;
+ if(ogg_stream_check(os)) return 0;
+
+ if((os->e_o_s&&os->lacing_fill) || /* 'were done, now flush' case */
+ (os->lacing_fill&&!os->b_o_s)) /* 'initial header page' case */
+ force=1;
+
+ return(ogg_stream_flush_i(os,og,force,nfill));
+}
+
+int ogg_stream_eos(ogg_stream_state *os){
+ if(ogg_stream_check(os)) return 1;
+ return os->e_o_s;
+}
+
+/* DECODING PRIMITIVES: packet streaming layer **********************/
+
+/* This has two layers to place more of the multi-serialno and paging
+ control in the application's hands. First, we expose a data buffer
+ using ogg_sync_buffer(). The app either copies into the
+ buffer, or passes it directly to read(), etc. We then call
+ ogg_sync_wrote() to tell how many bytes we just added.
+
+ Pages are returned (pointers into the buffer in ogg_sync_state)
+ by ogg_sync_pageout(). The page is then submitted to
+ ogg_stream_pagein() along with the appropriate
+ ogg_stream_state* (ie, matching serialno). We then get raw
+ packets out calling ogg_stream_packetout() with a
+ ogg_stream_state. */
+
+/* initialize the struct to a known state */
+int ogg_sync_init(ogg_sync_state *oy){
+ if(oy){
+ oy->storage = -1; /* used as a readiness flag */
+ memset(oy,0,sizeof(*oy));
+ }
+ return(0);
+}
+
+/* clear non-flat storage within */
+int ogg_sync_clear(ogg_sync_state *oy){
+ if(oy){
+ if(oy->data)_ogg_free(oy->data);
+ memset(oy,0,sizeof(*oy));
+ }
+ return(0);
+}
+
+int ogg_sync_destroy(ogg_sync_state *oy){
+ if(oy){
+ ogg_sync_clear(oy);
+ _ogg_free(oy);
+ }
+ return(0);
+}
+
+int ogg_sync_check(ogg_sync_state *oy){
+ if(oy->storage<0) return -1;
+ return 0;
+}
+
+char *ogg_sync_buffer(ogg_sync_state *oy, long size){
+ if(ogg_sync_check(oy)) return NULL;
+
+ /* first, clear out any space that has been previously returned */
+ if(oy->returned){
+ oy->fill-=oy->returned;
+ if(oy->fill>0)
+ memmove(oy->data,oy->data+oy->returned,oy->fill);
+ oy->returned=0;
+ }
+
+ if(size>oy->storage-oy->fill){
+ /* We need to extend the internal buffer */
+ long newsize=size+oy->fill+4096; /* an extra page to be nice */
+ void *ret;
+
+ if(oy->data)
+ ret=_ogg_realloc(oy->data,newsize);
+ else
+ ret=_ogg_malloc(newsize);
+ if(!ret){
+ ogg_sync_clear(oy);
+ return NULL;
+ }
+ oy->data=ret;
+ oy->storage=newsize;
+ }
+
+ /* expose a segment at least as large as requested at the fill mark */
+ return((char *)oy->data+oy->fill);
+}
+
+int ogg_sync_wrote(ogg_sync_state *oy, long bytes){
+ if(ogg_sync_check(oy))return -1;
+ if(oy->fill+bytes>oy->storage)return -1;
+ oy->fill+=bytes;
+ return(0);
+}
+
+/* sync the stream. This is meant to be useful for finding page
+ boundaries.
+
+ return values for this:
+ -n) skipped n bytes
+ 0) page not ready; more data (no bytes skipped)
+ n) page synced at current location; page length n bytes
+
+*/
+
+long ogg_sync_pageseek(ogg_sync_state *oy,ogg_page *og){
+ unsigned char *page=oy->data+oy->returned;
+ unsigned char *next;
+ long bytes=oy->fill-oy->returned;
+
+ if(ogg_sync_check(oy))return 0;
+
+ if(oy->headerbytes==0){
+ int headerbytes,i;
+ if(bytes<27)return(0); /* not enough for a header */
+
+ /* verify capture pattern */
+ if(memcmp(page,"OggS",4))goto sync_fail;
+
+ headerbytes=page[26]+27;
+ if(bytes<headerbytes)return(0); /* not enough for header + seg table */
+
+ /* count up body length in the segment table */
+
+ for(i=0;i<page[26];i++)
+ oy->bodybytes+=page[27+i];
+ oy->headerbytes=headerbytes;
+ }
+
+ if(oy->bodybytes+oy->headerbytes>bytes)return(0);
+
+ /* The whole test page is buffered. Verify the checksum */
+ {
+ /* Grab the checksum bytes, set the header field to zero */
+ char chksum[4];
+ ogg_page log;
+
+ memcpy(chksum,page+22,4);
+ memset(page+22,0,4);
+
+ /* set up a temp page struct and recompute the checksum */
+ log.header=page;
+ log.header_len=oy->headerbytes;
+ log.body=page+oy->headerbytes;
+ log.body_len=oy->bodybytes;
+ ogg_page_checksum_set(&log);
+
+ /* Compare */
+ if(memcmp(chksum,page+22,4)){
+ /* D'oh. Mismatch! Corrupt page (or miscapture and not a page
+ at all) */
+ /* replace the computed checksum with the one actually read in */
+ memcpy(page+22,chksum,4);
+
+ /* Bad checksum. Lose sync */
+ goto sync_fail;
+ }
+ }
+
+ /* yes, have a whole page all ready to go */
+ {
+ unsigned char *page=oy->data+oy->returned;
+ long bytes;
+
+ if(og){
+ og->header=page;
+ og->header_len=oy->headerbytes;
+ og->body=page+oy->headerbytes;
+ og->body_len=oy->bodybytes;
+ }
+
+ oy->unsynced=0;
+ oy->returned+=(bytes=oy->headerbytes+oy->bodybytes);
+ oy->headerbytes=0;
+ oy->bodybytes=0;
+ return(bytes);
+ }
+
+ sync_fail:
+
+ oy->headerbytes=0;
+ oy->bodybytes=0;
+
+ /* search for possible capture */
+ next=memchr(page+1,'O',bytes-1);
+ if(!next)
+ next=oy->data+oy->fill;
+
+ oy->returned=(int)(next-oy->data);
+ return((long)-(next-page));
+}
+
+/* sync the stream and get a page. Keep trying until we find a page.
+ Suppress 'sync errors' after reporting the first.
+
+ return values:
+ -1) recapture (hole in data)
+ 0) need more data
+ 1) page returned
+
+ Returns pointers into buffered data; invalidated by next call to
+ _stream, _clear, _init, or _buffer */
+
+int ogg_sync_pageout(ogg_sync_state *oy, ogg_page *og){
+
+ if(ogg_sync_check(oy))return 0;
+
+ /* all we need to do is verify a page at the head of the stream
+ buffer. If it doesn't verify, we look for the next potential
+ frame */
+
+ for(;;){
+ long ret=ogg_sync_pageseek(oy,og);
+ if(ret>0){
+ /* have a page */
+ return(1);
+ }
+ if(ret==0){
+ /* need more data */
+ return(0);
+ }
+
+ /* head did not start a synced page... skipped some bytes */
+ if(!oy->unsynced){
+ oy->unsynced=1;
+ return(-1);
+ }
+
+ /* loop. keep looking */
+
+ }
+}
+
+/* add the incoming page to the stream state; we decompose the page
+ into packet segments here as well. */
+
+int ogg_stream_pagein(ogg_stream_state *os, ogg_page *og){
+ unsigned char *header=og->header;
+ unsigned char *body=og->body;
+ long bodysize=og->body_len;
+ int segptr=0;
+
+ int version=ogg_page_version(og);
+ int continued=ogg_page_continued(og);
+ int bos=ogg_page_bos(og);
+ int eos=ogg_page_eos(og);
+ ogg_int64_t granulepos=ogg_page_granulepos(og);
+ int serialno=ogg_page_serialno(og);
+ long pageno=ogg_page_pageno(og);
+ int segments=header[26];
+
+ if(ogg_stream_check(os)) return -1;
+
+ /* clean up 'returned data' */
+ {
+ long lr=os->lacing_returned;
+ long br=os->body_returned;
+
+ /* body data */
+ if(br){
+ os->body_fill-=br;
+ if(os->body_fill)
+ memmove(os->body_data,os->body_data+br,os->body_fill);
+ os->body_returned=0;
+ }
+
+ if(lr){
+ /* segment table */
+ if(os->lacing_fill-lr){
+ memmove(os->lacing_vals,os->lacing_vals+lr,
+ (os->lacing_fill-lr)*sizeof(*os->lacing_vals));
+ memmove(os->granule_vals,os->granule_vals+lr,
+ (os->lacing_fill-lr)*sizeof(*os->granule_vals));
+ }
+ os->lacing_fill-=lr;
+ os->lacing_packet-=lr;
+ os->lacing_returned=0;
+ }
+ }
+
+ /* check the serial number */
+ if(serialno!=os->serialno)return(-1);
+ if(version>0)return(-1);
+
+ if(_os_lacing_expand(os,segments+1)) return -1;
+
+ /* are we in sequence? */
+ if(pageno!=os->pageno){
+ int i;
+
+ /* unroll previous partial packet (if any) */
+ for(i=os->lacing_packet;i<os->lacing_fill;i++)
+ os->body_fill-=os->lacing_vals[i]&0xff;
+ os->lacing_fill=os->lacing_packet;
+
+ /* make a note of dropped data in segment table */
+ if(os->pageno!=-1){
+ os->lacing_vals[os->lacing_fill++]=0x400;
+ os->lacing_packet++;
+ }
+ }
+
+ /* are we a 'continued packet' page? If so, we may need to skip
+ some segments */
+ if(continued){
+ if(os->lacing_fill<1 ||
+ (os->lacing_vals[os->lacing_fill-1]&0xff)<255 ||
+ 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){
+ if(_os_body_expand(os,bodysize)) return -1;
+ 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){
+ if(ogg_sync_check(oy))return -1;
+
+ 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){
+ if(ogg_stream_check(os)) return -1;
+
+ 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){
+ if(ogg_stream_check(os)) return -1;
+ 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;
+ long 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){
+ if(ogg_stream_check(os)) return 0;
+ return _packetout(os,op,1);
+}
+
+int ogg_stream_packetpeek(ogg_stream_state *os,ogg_packet *op){
+ if(ogg_stream_check(os)) return 0;
+ 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 checkpacket(ogg_packet *op,long len, int no, long pos){
+ long j;
+ static int sequence=0;
+ static int lastno=0;
+
+ if(op->bytes!=len){
+ fprintf(stderr,"incorrect packet length (%ld != %ld)!\n",op->bytes,len);
+ exit(1);
+ }
+ if(op->granulepos!=pos){
+ fprintf(stderr,"incorrect packet granpos (%ld != %ld)!\n",(long)op->granulepos,pos);
+ exit(1);
+ }
+
+ /* packet number just follows sequence/gap; adjust the input number
+ for that */
+ if(no==0){
+ sequence=0;
+ }else{
+ sequence++;
+ if(no>lastno+1)
+ sequence++;
+ }
+ lastno=no;
+ if(op->packetno!=sequence){
+ fprintf(stderr,"incorrect packet sequence %ld != %d\n",
+ (long)(op->packetno),sequence);
+ exit(1);
+ }
+
+ /* Test data */
+ for(j=0;j<op->bytes;j++)
+ if(op->packet[j]!=((j+no)&0xff)){
+ fprintf(stderr,"body data mismatch (1) at pos %ld: %x!=%lx!\n\n",
+ j,op->packet[j],(j+no)&0xff);
+ exit(1);
+ }
+}
+
+void check_page(unsigned char *data,const int *header,ogg_page *og){
+ long j;
+ /* Test data */
+ for(j=0;j<og->body_len;j++)
+ if(og->body[j]!=data[j]){
+ fprintf(stderr,"body data mismatch (2) at pos %ld: %x!=%x!\n\n",
+ j,data[j],og->body[j]);
+ exit(1);
+ }
+
+ /* Test header */
+ for(j=0;j<og->header_len;j++){
+ if(og->header[j]!=header[j]){
+ fprintf(stderr,"header content mismatch at pos %ld:\n",j);
+ for(j=0;j<header[26]+27;j++)
+ fprintf(stderr," (%ld)%02x:%02x",j,header[j],og->header[j]);
+ fprintf(stderr,"\n");
+ exit(1);
+ }
+ }
+ if(og->header_len!=header[26]+27){
+ fprintf(stderr,"header length incorrect! (%ld!=%d)\n",
+ og->header_len,header[26]+27);
+ exit(1);
+ }
+}
+
+void print_header(ogg_page *og){
+ int j;
+ fprintf(stderr,"\nHEADER:\n");
+ fprintf(stderr," capture: %c %c %c %c version: %d flags: %x\n",
+ og->header[0],og->header[1],og->header[2],og->header[3],
+ (int)og->header[4],(int)og->header[5]);
+
+ fprintf(stderr," granulepos: %d serialno: %d pageno: %ld\n",
+ (og->header[9]<<24)|(og->header[8]<<16)|
+ (og->header[7]<<8)|og->header[6],
+ (og->header[17]<<24)|(og->header[16]<<16)|
+ (og->header[15]<<8)|og->header[14],
+ ((long)(og->header[21])<<24)|(og->header[20]<<16)|
+ (og->header[19]<<8)|og->header[18]);
+
+ fprintf(stderr," checksum: %02x:%02x:%02x:%02x\n segments: %d (",
+ (int)og->header[22],(int)og->header[23],
+ (int)og->header[24],(int)og->header[25],
+ (int)og->header[26]);
+
+ for(j=27;j<og->header_len;j++)
+ fprintf(stderr,"%d ",(int)og->header[j]);
+ fprintf(stderr,")\n\n");
+}
+
+void copy_page(ogg_page *og){
+ unsigned char *temp=_ogg_malloc(og->header_len);
+ memcpy(temp,og->header,og->header_len);
+ og->header=temp;
+
+ temp=_ogg_malloc(og->body_len);
+ memcpy(temp,og->body,og->body_len);
+ og->body=temp;
+}
+
+void free_page(ogg_page *og){
+ _ogg_free (og->header);
+ _ogg_free (og->body);
+}
+
+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,
+ 0xf8,0x3c,0x19,0x79,
+ 255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 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,
+ 0x38,0xe6,0xb6,0x28,
+ 6,
+ 255,220,255,4,255,0};
+
+
+/* spill expansion test */
+const int head1_4b[] = {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_4b[] = {0x4f,0x67,0x67,0x53,0,0x00,
+ 0x07,0x10,0x00,0x00,0x00,0x00,0x00,0x00,
+ 0x01,0x02,0x03,0x04,1,0,0,0,
+ 0xce,0x8f,0x17,0x1a,
+ 23,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,255,10,255,4,255,0,0};
+
+
+const int head3_4b[] = {0x4f,0x67,0x67,0x53,0,0x04,
+ 0x07,0x14,0x00,0x00,0x00,0x00,0x00,0x00,
+ 0x01,0x02,0x03,0x04,2,0,0,0,
+ 0x9b,0xb2,0x50,0xa1,
+ 1,
+ 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,
+ 0x68,0x22,0x7c,0x3d,
+ 255,
+ 100,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 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,
+ 0xf4,0x87,0xba,0xf3,
+ 255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 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,
+ 0xf7,0x2f,0x6c,0x60,
+ 5,
+ 254,255,4,255,0};
+
+/* 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,
+ 0x68,0x22,0x7c,0x3d,
+ 255,
+ 100,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 255,255,255,255,255,255,255,255,
+ 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};
+
+int compare_packet(const ogg_packet *op1, const ogg_packet *op2){
+ if(op1->packet!=op2->packet){
+ fprintf(stderr,"op1->packet != op2->packet\n");
+ return(1);
+ }
+ if(op1->bytes!=op2->bytes){
+ fprintf(stderr,"op1->bytes != op2->bytes\n");
+ return(1);
+ }
+ if(op1->b_o_s!=op2->b_o_s){
+ fprintf(stderr,"op1->b_o_s != op2->b_o_s\n");
+ return(1);
+ }
+ if(op1->e_o_s!=op2->e_o_s){
+ fprintf(stderr,"op1->e_o_s != op2->e_o_s\n");
+ return(1);
+ }
+ if(op1->granulepos!=op2->granulepos){
+ fprintf(stderr,"op1->granulepos != op2->granulepos\n");
+ return(1);
+ }
+ if(op1->packetno!=op2->packetno){
+ fprintf(stderr,"op1->packetno != op2->packetno\n");
+ return(1);
+ }
+ return(0);
+}
+
+void test_pack(const int *pl, const int **headers, int byteskip,
+ int pageskip, int packetskip){
+ unsigned char *data=_ogg_malloc(1024*1024); /* for scripted test cases only */
+ long inptr=0;
+ long outptr=0;
+ long deptr=0;
+ long depacket=0;
+ long granule_pos=7,pageno=0;
+ int i,j,packets,pageout=pageskip;
+ int eosflag=0;
+ int bosflag=0;
+
+ int byteskipcount=0;
+
+ ogg_stream_reset(&os_en);
+ ogg_stream_reset(&os_de);
+ ogg_sync_reset(&oy);
+
+ for(packets=0;packets<packetskip;packets++)
+ depacket+=pl[packets];
+
+ for(packets=0;;packets++)if(pl[packets]==-1)break;
+
+ for(i=0;i<packets;i++){
+ /* construct a test packet */
+ ogg_packet op;
+ int len=pl[i];
+
+ op.packet=data+inptr;
+ op.bytes=len;
+ op.e_o_s=(pl[i+1]<0?1:0);
+ op.granulepos=granule_pos;
+
+ granule_pos+=1024;
+
+ for(j=0;j<len;j++)data[inptr++]=i+j;
+
+ /* submit the test packet */
+ ogg_stream_packetin(&os_en,&op);
+
+ /* retrieve any finished pages */
+ {
+ ogg_page og;
+
+ while(ogg_stream_pageout(&os_en,&og)){
+ /* We have a page. Check it carefully */
+
+ fprintf(stderr,"%ld, ",pageno);
+
+ if(headers[pageno]==NULL){
+ fprintf(stderr,"coded too many pages!\n");
+ exit(1);
+ }
+
+ check_page(data+outptr,headers[pageno],&og);
+
+ outptr+=og.body_len;
+ pageno++;
+ if(pageskip){
+ bosflag=1;
+ pageskip--;
+ deptr+=og.body_len;
+ }
+
+ /* have a complete page; submit it to sync/decode */
+
+ {
+ ogg_page og_de;
+ ogg_packet op_de,op_de2;
+ char *buf=ogg_sync_buffer(&oy,og.header_len+og.body_len);
+ char *next=buf;
+ byteskipcount+=og.header_len;
+ if(byteskipcount>byteskip){
+ memcpy(next,og.header,byteskipcount-byteskip);
+ next+=byteskipcount-byteskip;
+ byteskipcount=byteskip;
+ }
+
+ byteskipcount+=og.body_len;
+ if(byteskipcount>byteskip){
+ memcpy(next,og.body,byteskipcount-byteskip);
+ next+=byteskipcount-byteskip;
+ byteskipcount=byteskip;
+ }
+
+ ogg_sync_wrote(&oy,next-buf);
+
+ while(1){
+ int ret=ogg_sync_pageout(&oy,&og_de);
+ if(ret==0)break;
+ if(ret<0)continue;
+ /* got a page. Happy happy. Verify that it's good. */
+
+ fprintf(stderr,"(%d), ",pageout);
+
+ check_page(data+deptr,headers[pageout],&og_de);
+ deptr+=og_de.body_len;
+ pageout++;
+
+ /* submit it to deconstitution */
+ ogg_stream_pagein(&os_de,&og_de);
+
+ /* packets out? */
+ while(ogg_stream_packetpeek(&os_de,&op_de2)>0){
+ ogg_stream_packetpeek(&os_de,NULL);
+ ogg_stream_packetout(&os_de,&op_de); /* just catching them all */
+
+ /* verify peek and out match */
+ if(compare_packet(&op_de,&op_de2)){
+ fprintf(stderr,"packetout != packetpeek! pos=%ld\n",
+ depacket);
+ exit(1);
+ }
+
+ /* verify the packet! */
+ /* check data */
+ if(memcmp(data+depacket,op_de.packet,op_de.bytes)){
+ fprintf(stderr,"packet data mismatch in decode! pos=%ld\n",
+ depacket);
+ exit(1);
+ }
+ /* check bos flag */
+ if(bosflag==0 && op_de.b_o_s==0){
+ fprintf(stderr,"b_o_s flag not set on packet!\n");
+ exit(1);
+ }
+ if(bosflag && op_de.b_o_s){
+ fprintf(stderr,"b_o_s flag incorrectly set on packet!\n");
+ exit(1);
+ }
+ bosflag=1;
+ depacket+=op_de.bytes;
+
+ /* check eos flag */
+ if(eosflag){
+ fprintf(stderr,"Multiple decoded packets with eos flag!\n");
+ exit(1);
+ }
+
+ if(op_de.e_o_s)eosflag=1;
+
+ /* check granulepos flag */
+ if(op_de.granulepos!=-1){
+ fprintf(stderr," granule:%ld ",(long)op_de.granulepos);
+ }
+ }
+ }
+ }
+ }
+ }
+ }
+ _ogg_free(data);
+ if(headers[pageno]!=NULL){
+ fprintf(stderr,"did not write last page!\n");
+ exit(1);
+ }
+ if(headers[pageout]!=NULL){
+ fprintf(stderr,"did not decode last page!\n");
+ exit(1);
+ }
+ if(inptr!=outptr){
+ fprintf(stderr,"encoded page data incomplete!\n");
+ exit(1);
+ }
+ if(inptr!=deptr){
+ fprintf(stderr,"decoded page data incomplete!\n");
+ exit(1);
+ }
+ if(inptr!=depacket){
+ fprintf(stderr,"decoded packet data incomplete!\n");
+ exit(1);
+ }
+ if(!eosflag){
+ fprintf(stderr,"Never got a packet with EOS set!\n");
+ exit(1);
+ }
+ fprintf(stderr,"ok.\n");
+}
+
+int main(void){
+
+ ogg_stream_init(&os_en,0x04030201);
+ ogg_stream_init(&os_de,0x04030201);
+ ogg_sync_init(&oy);
+
+ /* Exercise each code path in the framing code. Also verify that
+ the checksums are working. */
+
+ {
+ /* 17 only */
+ const int packets[]={17, -1};
+ const int *headret[]={head1_0,NULL};
+
+ fprintf(stderr,"testing single page encoding... ");
+ test_pack(packets,headret,0,0,0);
+ }
+
+ {
+ /* 17, 254, 255, 256, 500, 510, 600 byte, pad */
+ const int packets[]={17, 254, 255, 256, 500, 510, 600, -1};
+ const int *headret[]={head1_1,head2_1,NULL};
+
+ fprintf(stderr,"testing basic page encoding... ");
+ test_pack(packets,headret,0,0,0);
+ }
+
+ {
+ /* nil packets; beginning,middle,end */
+ const int packets[]={0,17, 254, 255, 0, 256, 0, 500, 510, 600, 0, -1};
+ const int *headret[]={head1_2,head2_2,NULL};
+
+ fprintf(stderr,"testing basic nil packets... ");
+ test_pack(packets,headret,0,0,0);
+ }
+
+ {
+ /* large initial packet */
+ const int packets[]={4345,259,255,-1};
+ const int *headret[]={head1_3,head2_3,NULL};
+
+ fprintf(stderr,"testing initial-packet lacing > 4k... ");
+ test_pack(packets,headret,0,0,0);
+ }
+
+ {
+ /* continuing packet test; with page spill expansion, we have to
+ overflow the lacing table. */
+ const int packets[]={0,65500,259,255,-1};
+ const int *headret[]={head1_4,head2_4,head3_4,NULL};
+
+ fprintf(stderr,"testing single packet page span... ");
+ test_pack(packets,headret,0,0,0);
+ }
+
+ {
+ /* spill expand packet test */
+ const int packets[]={0,4345,259,255,0,0,-1};
+ const int *headret[]={head1_4b,head2_4b,head3_4b,NULL};
+
+ fprintf(stderr,"testing page spill expansion... ");
+ test_pack(packets,headret,0,0,0);
+ }
+
+ /* page with the 255 segment limit */
+ {
+
+ const int packets[]={0,10,10,10,10,10,10,10,10,
+ 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,
+ 10,10,10,10,10,10,10,50,-1};
+ const int *headret[]={head1_5,head2_5,head3_5,NULL};
+
+ fprintf(stderr,"testing max packet segments... ");
+ test_pack(packets,headret,0,0,0);
+ }
+
+ {
+ /* packet that overspans over an entire page */
+ const int packets[]={0,100,130049,259,255,-1};
+ const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL};
+
+ fprintf(stderr,"testing very large packets... ");
+ test_pack(packets,headret,0,0,0);
+ }
+
+ {
+ /* test for the libogg 1.1.1 resync in large continuation bug
+ found by Josh Coalson) */
+ const int packets[]={0,100,130049,259,255,-1};
+ const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL};
+
+ fprintf(stderr,"testing continuation resync in very large packets... ");
+ test_pack(packets,headret,100,2,3);
+ }
+
+ {
+ /* term only page. why not? */
+ const int packets[]={0,100,64770,-1};
+ const int *headret[]={head1_7,head2_7,head3_7,NULL};
+
+ fprintf(stderr,"testing zero data page (1 nil packet)... ");
+ test_pack(packets,headret,0,0,0);
+ }
+
+
+
+ {
+ /* build a bunch of pages for testing */
+ unsigned char *data=_ogg_malloc(1024*1024);
+ int pl[]={0, 1,1,98,4079, 1,1,2954,2057, 76,34,912,0,234,1000,1000, 1000,300,-1};
+ int inptr=0,i,j;
+ ogg_page og[5];
+
+ ogg_stream_reset(&os_en);
+
+ for(i=0;pl[i]!=-1;i++){
+ ogg_packet op;
+ int len=pl[i];
+
+ op.packet=data+inptr;
+ op.bytes=len;
+ op.e_o_s=(pl[i+1]<0?1:0);
+ op.granulepos=(i+1)*1000;
+
+ for(j=0;j<len;j++)data[inptr++]=i+j;
+ ogg_stream_packetin(&os_en,&op);
+ }
+
+ _ogg_free(data);
+
+ /* retrieve finished pages */
+ for(i=0;i<5;i++){
+ if(ogg_stream_pageout(&os_en,&og[i])==0){
+ fprintf(stderr,"Too few pages output building sync tests!\n");
+ exit(1);
+ }
+ copy_page(&og[i]);
+ }
+
+ /* Test lost pages on pagein/packetout: no rollback */
+ {
+ ogg_page temp;
+ ogg_packet test;
+
+ fprintf(stderr,"Testing loss of pages... ");
+
+ ogg_sync_reset(&oy);
+ ogg_stream_reset(&os_de);
+ for(i=0;i<5;i++){
+ memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header,
+ og[i].header_len);
+ ogg_sync_wrote(&oy,og[i].header_len);
+ memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len);
+ ogg_sync_wrote(&oy,og[i].body_len);
+ }
+
+ ogg_sync_pageout(&oy,&temp);
+ ogg_stream_pagein(&os_de,&temp);
+ ogg_sync_pageout(&oy,&temp);
+ ogg_stream_pagein(&os_de,&temp);
+ ogg_sync_pageout(&oy,&temp);
+ /* skip */
+ ogg_sync_pageout(&oy,&temp);
+ ogg_stream_pagein(&os_de,&temp);
+
+ /* do we get the expected results/packets? */
+
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,0,0,0);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,1,1,-1);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,1,2,-1);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,98,3,-1);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,4079,4,5000);
+ if(ogg_stream_packetout(&os_de,&test)!=-1){
+ fprintf(stderr,"Error: loss of page did not return error\n");
+ exit(1);
+ }
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,76,9,-1);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,34,10,-1);
+ fprintf(stderr,"ok.\n");
+ }
+
+ /* Test lost pages on pagein/packetout: rollback with continuation */
+ {
+ ogg_page temp;
+ ogg_packet test;
+
+ fprintf(stderr,"Testing loss of pages (rollback required)... ");
+
+ ogg_sync_reset(&oy);
+ ogg_stream_reset(&os_de);
+ for(i=0;i<5;i++){
+ memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header,
+ og[i].header_len);
+ ogg_sync_wrote(&oy,og[i].header_len);
+ memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len);
+ ogg_sync_wrote(&oy,og[i].body_len);
+ }
+
+ ogg_sync_pageout(&oy,&temp);
+ ogg_stream_pagein(&os_de,&temp);
+ ogg_sync_pageout(&oy,&temp);
+ ogg_stream_pagein(&os_de,&temp);
+ ogg_sync_pageout(&oy,&temp);
+ ogg_stream_pagein(&os_de,&temp);
+ ogg_sync_pageout(&oy,&temp);
+ /* skip */
+ ogg_sync_pageout(&oy,&temp);
+ ogg_stream_pagein(&os_de,&temp);
+
+ /* do we get the expected results/packets? */
+
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,0,0,0);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,1,1,-1);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,1,2,-1);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,98,3,-1);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,4079,4,5000);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,1,5,-1);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,1,6,-1);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,2954,7,-1);
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,2057,8,9000);
+ if(ogg_stream_packetout(&os_de,&test)!=-1){
+ fprintf(stderr,"Error: loss of page did not return error\n");
+ exit(1);
+ }
+ if(ogg_stream_packetout(&os_de,&test)!=1)error();
+ checkpacket(&test,300,17,18000);
+ fprintf(stderr,"ok.\n");
+ }
+
+ /* the rest only test sync */
+ {
+ ogg_page og_de;
+ /* Test fractional page inputs: incomplete capture */
+ fprintf(stderr,"Testing sync on partial inputs... ");
+ ogg_sync_reset(&oy);
+ memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
+ 3);
+ ogg_sync_wrote(&oy,3);
+ if(ogg_sync_pageout(&oy,&og_de)>0)error();
+
+ /* Test fractional page inputs: incomplete fixed header */
+ memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+3,
+ 20);
+ ogg_sync_wrote(&oy,20);
+ if(ogg_sync_pageout(&oy,&og_de)>0)error();
+
+ /* Test fractional page inputs: incomplete header */
+ memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+23,
+ 5);
+ ogg_sync_wrote(&oy,5);
+ if(ogg_sync_pageout(&oy,&og_de)>0)error();
+
+ /* Test fractional page inputs: incomplete body */
+
+ memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+28,
+ og[1].header_len-28);
+ ogg_sync_wrote(&oy,og[1].header_len-28);
+ if(ogg_sync_pageout(&oy,&og_de)>0)error();
+
+ memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,1000);
+ ogg_sync_wrote(&oy,1000);
+ if(ogg_sync_pageout(&oy,&og_de)>0)error();
+
+ memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body+1000,
+ og[1].body_len-1000);
+ ogg_sync_wrote(&oy,og[1].body_len-1000);
+ if(ogg_sync_pageout(&oy,&og_de)<=0)error();
+
+ fprintf(stderr,"ok.\n");
+ }
+
+ /* Test fractional page inputs: page + incomplete capture */
+ {
+ ogg_page og_de;
+ fprintf(stderr,"Testing sync on 1+partial inputs... ");
+ ogg_sync_reset(&oy);
+
+ memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
+ og[1].header_len);
+ ogg_sync_wrote(&oy,og[1].header_len);
+
+ memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
+ og[1].body_len);
+ ogg_sync_wrote(&oy,og[1].body_len);
+
+ memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
+ 20);
+ ogg_sync_wrote(&oy,20);
+ if(ogg_sync_pageout(&oy,&og_de)<=0)error();
+ if(ogg_sync_pageout(&oy,&og_de)>0)error();
+
+ memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+20,
+ og[1].header_len-20);
+ ogg_sync_wrote(&oy,og[1].header_len-20);
+ memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
+ og[1].body_len);
+ ogg_sync_wrote(&oy,og[1].body_len);
+ if(ogg_sync_pageout(&oy,&og_de)<=0)error();
+
+ fprintf(stderr,"ok.\n");
+ }
+
+ /* Test recapture: garbage + page */
+ {
+ ogg_page og_de;
+ fprintf(stderr,"Testing search for capture... ");
+ ogg_sync_reset(&oy);
+
+ /* 'garbage' */
+ memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
+ og[1].body_len);
+ ogg_sync_wrote(&oy,og[1].body_len);
+
+ memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
+ og[1].header_len);
+ ogg_sync_wrote(&oy,og[1].header_len);
+
+ memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
+ og[1].body_len);
+ ogg_sync_wrote(&oy,og[1].body_len);
+
+ memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header,
+ 20);
+ ogg_sync_wrote(&oy,20);
+ if(ogg_sync_pageout(&oy,&og_de)>0)error();
+ if(ogg_sync_pageout(&oy,&og_de)<=0)error();
+ if(ogg_sync_pageout(&oy,&og_de)>0)error();
+
+ memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header+20,
+ og[2].header_len-20);
+ ogg_sync_wrote(&oy,og[2].header_len-20);
+ memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body,
+ og[2].body_len);
+ ogg_sync_wrote(&oy,og[2].body_len);
+ if(ogg_sync_pageout(&oy,&og_de)<=0)error();
+
+ fprintf(stderr,"ok.\n");
+ }
+
+ /* Test recapture: page + garbage + page */
+ {
+ ogg_page og_de;
+ fprintf(stderr,"Testing recapture... ");
+ ogg_sync_reset(&oy);
+
+ memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
+ og[1].header_len);
+ ogg_sync_wrote(&oy,og[1].header_len);
+
+ memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
+ og[1].body_len);
+ ogg_sync_wrote(&oy,og[1].body_len);
+
+ memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header,
+ og[2].header_len);
+ ogg_sync_wrote(&oy,og[2].header_len);
+
+ memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header,
+ og[2].header_len);
+ ogg_sync_wrote(&oy,og[2].header_len);
+
+ if(ogg_sync_pageout(&oy,&og_de)<=0)error();
+
+ memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body,
+ og[2].body_len-5);
+ ogg_sync_wrote(&oy,og[2].body_len-5);
+
+ memcpy(ogg_sync_buffer(&oy,og[3].header_len),og[3].header,
+ og[3].header_len);
+ ogg_sync_wrote(&oy,og[3].header_len);
+
+ memcpy(ogg_sync_buffer(&oy,og[3].body_len),og[3].body,
+ og[3].body_len);
+ ogg_sync_wrote(&oy,og[3].body_len);
+
+ if(ogg_sync_pageout(&oy,&og_de)>0)error();
+ if(ogg_sync_pageout(&oy,&og_de)<=0)error();
+
+ fprintf(stderr,"ok.\n");
+ }
+
+ /* Free page data that was previously copied */
+ {
+ for(i=0;i<5;i++){
+ free_page(&og[i]);
+ }
+ }
+ }
+
+ return(0);
+}
+
+#endif
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 07:37:16 +0000