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-rw-r--r--ogg/src/framing.c2140
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diff --git a/ogg/src/framing.c b/ogg/src/framing.c
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--- a/ogg/src/framing.c
+++ /dev/null
@@ -1,2140 +0,0 @@
-/********************************************************************
- * *
- * 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/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 v1.1 at 2024-11-04 21:39:47 +0000