dbf-halloween2015: libs/ogg/framing.c annotate

dbf-halloween2015

annotate libs/ogg/framing.c @ 3:c37fe5d8a4ed

windows port

author	John Tsiombikas <nuclear@member.fsf.org>
date	Sun, 01 Nov 2015 06:04:28 +0200
parents
children

rev	line source
nuclear@1	1 /********************************************************************
nuclear@1	2 * *
nuclear@1	3 * THIS FILE IS PART OF THE Ogg CONTAINER SOURCE CODE. *
nuclear@1	4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
nuclear@1	5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
nuclear@1	6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
nuclear@1	7 * *
nuclear@1	8 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2010 *
nuclear@1	9 * by the Xiph.Org Foundation http://www.xiph.org/ *
nuclear@1	10 * *
nuclear@1	11 ********************************************************************
nuclear@1	12
nuclear@1	13 function: code raw packets into framed OggSquish stream and
nuclear@1	14 decode Ogg streams back into raw packets
nuclear@1	15 last mod: $Id: framing.c 18758 2013-01-08 16:29:56Z tterribe $
nuclear@1	16
nuclear@1	17 note: The CRC code is directly derived from public domain code by
nuclear@1	18 Ross Williams (ross@guest.adelaide.edu.au). See docs/framing.html
nuclear@1	19 for details.
nuclear@1	20
nuclear@1	21 ********************************************************************/
nuclear@1	22
nuclear@1	23 #include <stdlib.h>
nuclear@1	24 #include <limits.h>
nuclear@1	25 #include <string.h>
nuclear@1	26 #include <ogg/ogg.h>
nuclear@1	27
nuclear@1	28 /* A complete description of Ogg framing exists in docs/framing.html */
nuclear@1	29
nuclear@1	30 int ogg_page_version(const ogg_page *og){
nuclear@1	31 return((int)(og->header[4]));
nuclear@1	32 }
nuclear@1	33
nuclear@1	34 int ogg_page_continued(const ogg_page *og){
nuclear@1	35 return((int)(og->header[5]&0x01));
nuclear@1	36 }
nuclear@1	37
nuclear@1	38 int ogg_page_bos(const ogg_page *og){
nuclear@1	39 return((int)(og->header[5]&0x02));
nuclear@1	40 }
nuclear@1	41
nuclear@1	42 int ogg_page_eos(const ogg_page *og){
nuclear@1	43 return((int)(og->header[5]&0x04));
nuclear@1	44 }
nuclear@1	45
nuclear@1	46 ogg_int64_t ogg_page_granulepos(const ogg_page *og){
nuclear@1	47 unsigned char *page=og->header;
nuclear@1	48 ogg_int64_t granulepos=page[13]&(0xff);
nuclear@1	49 granulepos= (granulepos<<8)\|(page[12]&0xff);
nuclear@1	50 granulepos= (granulepos<<8)\|(page[11]&0xff);
nuclear@1	51 granulepos= (granulepos<<8)\|(page[10]&0xff);
nuclear@1	52 granulepos= (granulepos<<8)\|(page[9]&0xff);
nuclear@1	53 granulepos= (granulepos<<8)\|(page[8]&0xff);
nuclear@1	54 granulepos= (granulepos<<8)\|(page[7]&0xff);
nuclear@1	55 granulepos= (granulepos<<8)\|(page[6]&0xff);
nuclear@1	56 return(granulepos);
nuclear@1	57 }
nuclear@1	58
nuclear@1	59 int ogg_page_serialno(const ogg_page *og){
nuclear@1	60 return(og->header[14] \|
nuclear@1	61 (og->header[15]<<8) \|
nuclear@1	62 (og->header[16]<<16) \|
nuclear@1	63 (og->header[17]<<24));
nuclear@1	64 }
nuclear@1	65
nuclear@1	66 long ogg_page_pageno(const ogg_page *og){
nuclear@1	67 return(og->header[18] \|
nuclear@1	68 (og->header[19]<<8) \|
nuclear@1	69 (og->header[20]<<16) \|
nuclear@1	70 (og->header[21]<<24));
nuclear@1	71 }
nuclear@1	72
nuclear@1	73
nuclear@1	74
nuclear@1	75 /* returns the number of packets that are completed on this page (if
nuclear@1	76 the leading packet is begun on a previous page, but ends on this
nuclear@1	77 page, it's counted */
nuclear@1	78
nuclear@1	79 /* NOTE:
nuclear@1	80 If a page consists of a packet begun on a previous page, and a new
nuclear@1	81 packet begun (but not completed) on this page, the return will be:
nuclear@1	82 ogg_page_packets(page) ==1,
nuclear@1	83 ogg_page_continued(page) !=0
nuclear@1	84
nuclear@1	85 If a page happens to be a single packet that was begun on a
nuclear@1	86 previous page, and spans to the next page (in the case of a three or
nuclear@1	87 more page packet), the return will be:
nuclear@1	88 ogg_page_packets(page) ==0,
nuclear@1	89 ogg_page_continued(page) !=0
nuclear@1	90 */
nuclear@1	91
nuclear@1	92 int ogg_page_packets(const ogg_page *og){
nuclear@1	93 int i,n=og->header[26],count=0;
nuclear@1	94 for(i=0;i<n;i++)
nuclear@1	95 if(og->header[27+i]<255)count++;
nuclear@1	96 return(count);
nuclear@1	97 }
nuclear@1	98
nuclear@1	99
nuclear@1	100 #if 0
nuclear@1	101 /* helper to initialize lookup for direct-table CRC (illustrative; we
nuclear@1	102 use the static init below) */
nuclear@1	103
nuclear@1	104 static ogg_uint32_t _ogg_crc_entry(unsigned long index){
nuclear@1	105 int i;
nuclear@1	106 unsigned long r;
nuclear@1	107
nuclear@1	108 r = index << 24;
nuclear@1	109 for (i=0; i<8; i++)
nuclear@1	110 if (r & 0x80000000UL)
nuclear@1	111 r = (r << 1) ^ 0x04c11db7; /* The same as the ethernet generator
nuclear@1	112 polynomial, although we use an
nuclear@1	113 unreflected alg and an init/final
nuclear@1	114 of 0, not 0xffffffff */
nuclear@1	115 else
nuclear@1	116 r<<=1;
nuclear@1	117 return (r & 0xffffffffUL);
nuclear@1	118 }
nuclear@1	119 #endif
nuclear@1	120
nuclear@1	121 static const ogg_uint32_t crc_lookup[256]={
nuclear@1	122 0x00000000,0x04c11db7,0x09823b6e,0x0d4326d9,
nuclear@1	123 0x130476dc,0x17c56b6b,0x1a864db2,0x1e475005,
nuclear@1	124 0x2608edb8,0x22c9f00f,0x2f8ad6d6,0x2b4bcb61,
nuclear@1	125 0x350c9b64,0x31cd86d3,0x3c8ea00a,0x384fbdbd,
nuclear@1	126 0x4c11db70,0x48d0c6c7,0x4593e01e,0x4152fda9,
nuclear@1	127 0x5f15adac,0x5bd4b01b,0x569796c2,0x52568b75,
nuclear@1	128 0x6a1936c8,0x6ed82b7f,0x639b0da6,0x675a1011,
nuclear@1	129 0x791d4014,0x7ddc5da3,0x709f7b7a,0x745e66cd,
nuclear@1	130 0x9823b6e0,0x9ce2ab57,0x91a18d8e,0x95609039,
nuclear@1	131 0x8b27c03c,0x8fe6dd8b,0x82a5fb52,0x8664e6e5,
nuclear@1	132 0xbe2b5b58,0xbaea46ef,0xb7a96036,0xb3687d81,
nuclear@1	133 0xad2f2d84,0xa9ee3033,0xa4ad16ea,0xa06c0b5d,
nuclear@1	134 0xd4326d90,0xd0f37027,0xddb056fe,0xd9714b49,
nuclear@1	135 0xc7361b4c,0xc3f706fb,0xceb42022,0xca753d95,
nuclear@1	136 0xf23a8028,0xf6fb9d9f,0xfbb8bb46,0xff79a6f1,
nuclear@1	137 0xe13ef6f4,0xe5ffeb43,0xe8bccd9a,0xec7dd02d,
nuclear@1	138 0x34867077,0x30476dc0,0x3d044b19,0x39c556ae,
nuclear@1	139 0x278206ab,0x23431b1c,0x2e003dc5,0x2ac12072,
nuclear@1	140 0x128e9dcf,0x164f8078,0x1b0ca6a1,0x1fcdbb16,
nuclear@1	141 0x018aeb13,0x054bf6a4,0x0808d07d,0x0cc9cdca,
nuclear@1	142 0x7897ab07,0x7c56b6b0,0x71159069,0x75d48dde,
nuclear@1	143 0x6b93dddb,0x6f52c06c,0x6211e6b5,0x66d0fb02,
nuclear@1	144 0x5e9f46bf,0x5a5e5b08,0x571d7dd1,0x53dc6066,
nuclear@1	145 0x4d9b3063,0x495a2dd4,0x44190b0d,0x40d816ba,
nuclear@1	146 0xaca5c697,0xa864db20,0xa527fdf9,0xa1e6e04e,
nuclear@1	147 0xbfa1b04b,0xbb60adfc,0xb6238b25,0xb2e29692,
nuclear@1	148 0x8aad2b2f,0x8e6c3698,0x832f1041,0x87ee0df6,
nuclear@1	149 0x99a95df3,0x9d684044,0x902b669d,0x94ea7b2a,
nuclear@1	150 0xe0b41de7,0xe4750050,0xe9362689,0xedf73b3e,
nuclear@1	151 0xf3b06b3b,0xf771768c,0xfa325055,0xfef34de2,
nuclear@1	152 0xc6bcf05f,0xc27dede8,0xcf3ecb31,0xcbffd686,
nuclear@1	153 0xd5b88683,0xd1799b34,0xdc3abded,0xd8fba05a,
nuclear@1	154 0x690ce0ee,0x6dcdfd59,0x608edb80,0x644fc637,
nuclear@1	155 0x7a089632,0x7ec98b85,0x738aad5c,0x774bb0eb,
nuclear@1	156 0x4f040d56,0x4bc510e1,0x46863638,0x42472b8f,
nuclear@1	157 0x5c007b8a,0x58c1663d,0x558240e4,0x51435d53,
nuclear@1	158 0x251d3b9e,0x21dc2629,0x2c9f00f0,0x285e1d47,
nuclear@1	159 0x36194d42,0x32d850f5,0x3f9b762c,0x3b5a6b9b,
nuclear@1	160 0x0315d626,0x07d4cb91,0x0a97ed48,0x0e56f0ff,
nuclear@1	161 0x1011a0fa,0x14d0bd4d,0x19939b94,0x1d528623,
nuclear@1	162 0xf12f560e,0xf5ee4bb9,0xf8ad6d60,0xfc6c70d7,
nuclear@1	163 0xe22b20d2,0xe6ea3d65,0xeba91bbc,0xef68060b,
nuclear@1	164 0xd727bbb6,0xd3e6a601,0xdea580d8,0xda649d6f,
nuclear@1	165 0xc423cd6a,0xc0e2d0dd,0xcda1f604,0xc960ebb3,
nuclear@1	166 0xbd3e8d7e,0xb9ff90c9,0xb4bcb610,0xb07daba7,
nuclear@1	167 0xae3afba2,0xaafbe615,0xa7b8c0cc,0xa379dd7b,
nuclear@1	168 0x9b3660c6,0x9ff77d71,0x92b45ba8,0x9675461f,
nuclear@1	169 0x8832161a,0x8cf30bad,0x81b02d74,0x857130c3,
nuclear@1	170 0x5d8a9099,0x594b8d2e,0x5408abf7,0x50c9b640,
nuclear@1	171 0x4e8ee645,0x4a4ffbf2,0x470cdd2b,0x43cdc09c,
nuclear@1	172 0x7b827d21,0x7f436096,0x7200464f,0x76c15bf8,
nuclear@1	173 0x68860bfd,0x6c47164a,0x61043093,0x65c52d24,
nuclear@1	174 0x119b4be9,0x155a565e,0x18197087,0x1cd86d30,
nuclear@1	175 0x029f3d35,0x065e2082,0x0b1d065b,0x0fdc1bec,
nuclear@1	176 0x3793a651,0x3352bbe6,0x3e119d3f,0x3ad08088,
nuclear@1	177 0x2497d08d,0x2056cd3a,0x2d15ebe3,0x29d4f654,
nuclear@1	178 0xc5a92679,0xc1683bce,0xcc2b1d17,0xc8ea00a0,
nuclear@1	179 0xd6ad50a5,0xd26c4d12,0xdf2f6bcb,0xdbee767c,
nuclear@1	180 0xe3a1cbc1,0xe760d676,0xea23f0af,0xeee2ed18,
nuclear@1	181 0xf0a5bd1d,0xf464a0aa,0xf9278673,0xfde69bc4,
nuclear@1	182 0x89b8fd09,0x8d79e0be,0x803ac667,0x84fbdbd0,
nuclear@1	183 0x9abc8bd5,0x9e7d9662,0x933eb0bb,0x97ffad0c,
nuclear@1	184 0xafb010b1,0xab710d06,0xa6322bdf,0xa2f33668,
nuclear@1	185 0xbcb4666d,0xb8757bda,0xb5365d03,0xb1f740b4};
nuclear@1	186
nuclear@1	187 /* init the encode/decode logical stream state */
nuclear@1	188
nuclear@1	189 int ogg_stream_init(ogg_stream_state *os,int serialno){
nuclear@1	190 if(os){
nuclear@1	191 memset(os,0,sizeof(*os));
nuclear@1	192 os->body_storage=16*1024;
nuclear@1	193 os->lacing_storage=1024;
nuclear@1	194
nuclear@1	195 os->body_data=_ogg_malloc(os->body_storagesizeof(os->body_data));
nuclear@1	196 os->lacing_vals=_ogg_malloc(os->lacing_storagesizeof(os->lacing_vals));
nuclear@1	197 os->granule_vals=_ogg_malloc(os->lacing_storagesizeof(os->granule_vals));
nuclear@1	198
nuclear@1	199 if(!os->body_data \|\| !os->lacing_vals \|\| !os->granule_vals){
nuclear@1	200 ogg_stream_clear(os);
nuclear@1	201 return -1;
nuclear@1	202 }
nuclear@1	203
nuclear@1	204 os->serialno=serialno;
nuclear@1	205
nuclear@1	206 return(0);
nuclear@1	207 }
nuclear@1	208 return(-1);
nuclear@1	209 }
nuclear@1	210
nuclear@1	211 /* async/delayed error detection for the ogg_stream_state */
nuclear@1	212 int ogg_stream_check(ogg_stream_state *os){
nuclear@1	213 if(!os \|\| !os->body_data) return -1;
nuclear@1	214 return 0;
nuclear@1	215 }
nuclear@1	216
nuclear@1	217 /* _clear does not free os, only the non-flat storage within */
nuclear@1	218 int ogg_stream_clear(ogg_stream_state *os){
nuclear@1	219 if(os){
nuclear@1	220 if(os->body_data)_ogg_free(os->body_data);
nuclear@1	221 if(os->lacing_vals)_ogg_free(os->lacing_vals);
nuclear@1	222 if(os->granule_vals)_ogg_free(os->granule_vals);
nuclear@1	223
nuclear@1	224 memset(os,0,sizeof(*os));
nuclear@1	225 }
nuclear@1	226 return(0);
nuclear@1	227 }
nuclear@1	228
nuclear@1	229 int ogg_stream_destroy(ogg_stream_state *os){
nuclear@1	230 if(os){
nuclear@1	231 ogg_stream_clear(os);
nuclear@1	232 _ogg_free(os);
nuclear@1	233 }
nuclear@1	234 return(0);
nuclear@1	235 }
nuclear@1	236
nuclear@1	237 /* Helpers for ogg_stream_encode; this keeps the structure and
nuclear@1	238 what's happening fairly clear */
nuclear@1	239
nuclear@1	240 static int _os_body_expand(ogg_stream_state *os,long needed){
nuclear@1	241 if(os->body_storage-needed<=os->body_fill){
nuclear@1	242 long body_storage;
nuclear@1	243 void *ret;
nuclear@1	244 if(os->body_storage>LONG_MAX-needed){
nuclear@1	245 ogg_stream_clear(os);
nuclear@1	246 return -1;
nuclear@1	247 }
nuclear@1	248 body_storage=os->body_storage+needed;
nuclear@1	249 if(body_storage<LONG_MAX-1024)body_storage+=1024;
nuclear@1	250 ret=_ogg_realloc(os->body_data,body_storagesizeof(os->body_data));
nuclear@1	251 if(!ret){
nuclear@1	252 ogg_stream_clear(os);
nuclear@1	253 return -1;
nuclear@1	254 }
nuclear@1	255 os->body_storage=body_storage;
nuclear@1	256 os->body_data=ret;
nuclear@1	257 }
nuclear@1	258 return 0;
nuclear@1	259 }
nuclear@1	260
nuclear@1	261 static int _os_lacing_expand(ogg_stream_state *os,long needed){
nuclear@1	262 if(os->lacing_storage-needed<=os->lacing_fill){
nuclear@1	263 long lacing_storage;
nuclear@1	264 void *ret;
nuclear@1	265 if(os->lacing_storage>LONG_MAX-needed){
nuclear@1	266 ogg_stream_clear(os);
nuclear@1	267 return -1;
nuclear@1	268 }
nuclear@1	269 lacing_storage=os->lacing_storage+needed;
nuclear@1	270 if(lacing_storage<LONG_MAX-32)lacing_storage+=32;
nuclear@1	271 ret=_ogg_realloc(os->lacing_vals,lacing_storagesizeof(os->lacing_vals));
nuclear@1	272 if(!ret){
nuclear@1	273 ogg_stream_clear(os);
nuclear@1	274 return -1;
nuclear@1	275 }
nuclear@1	276 os->lacing_vals=ret;
nuclear@1	277 ret=_ogg_realloc(os->granule_vals,lacing_storage*
nuclear@1	278 sizeof(*os->granule_vals));
nuclear@1	279 if(!ret){
nuclear@1	280 ogg_stream_clear(os);
nuclear@1	281 return -1;
nuclear@1	282 }
nuclear@1	283 os->granule_vals=ret;
nuclear@1	284 os->lacing_storage=lacing_storage;
nuclear@1	285 }
nuclear@1	286 return 0;
nuclear@1	287 }
nuclear@1	288
nuclear@1	289 /* checksum the page */
nuclear@1	290 /* Direct table CRC; note that this will be faster in the future if we
nuclear@1	291 perform the checksum simultaneously with other copies */
nuclear@1	292
nuclear@1	293 void ogg_page_checksum_set(ogg_page *og){
nuclear@1	294 if(og){
nuclear@1	295 ogg_uint32_t crc_reg=0;
nuclear@1	296 int i;
nuclear@1	297
nuclear@1	298 /* safety; needed for API behavior, but not framing code */
nuclear@1	299 og->header[22]=0;
nuclear@1	300 og->header[23]=0;
nuclear@1	301 og->header[24]=0;
nuclear@1	302 og->header[25]=0;
nuclear@1	303
nuclear@1	304 for(i=0;i<og->header_len;i++)
nuclear@1	305 crc_reg=(crc_reg<<8)^crc_lookup[((crc_reg >> 24)&0xff)^og->header[i]];
nuclear@1	306 for(i=0;i<og->body_len;i++)
nuclear@1	307 crc_reg=(crc_reg<<8)^crc_lookup[((crc_reg >> 24)&0xff)^og->body[i]];
nuclear@1	308
nuclear@1	309 og->header[22]=(unsigned char)(crc_reg&0xff);
nuclear@1	310 og->header[23]=(unsigned char)((crc_reg>>8)&0xff);
nuclear@1	311 og->header[24]=(unsigned char)((crc_reg>>16)&0xff);
nuclear@1	312 og->header[25]=(unsigned char)((crc_reg>>24)&0xff);
nuclear@1	313 }
nuclear@1	314 }
nuclear@1	315
nuclear@1	316 /* submit data to the internal buffer of the framing engine */
nuclear@1	317 int ogg_stream_iovecin(ogg_stream_state os, ogg_iovec_t iov, int count,
nuclear@1	318 long e_o_s, ogg_int64_t granulepos){
nuclear@1	319
nuclear@1	320 long bytes = 0, lacing_vals;
nuclear@1	321 int i;
nuclear@1	322
nuclear@1	323 if(ogg_stream_check(os)) return -1;
nuclear@1	324 if(!iov) return 0;
nuclear@1	325
nuclear@1	326 for (i = 0; i < count; ++i){
nuclear@1	327 if(iov[i].iov_len>LONG_MAX) return -1;
nuclear@1	328 if(bytes>LONG_MAX-(long)iov[i].iov_len) return -1;
nuclear@1	329 bytes += (long)iov[i].iov_len;
nuclear@1	330 }
nuclear@1	331 lacing_vals=bytes/255+1;
nuclear@1	332
nuclear@1	333 if(os->body_returned){
nuclear@1	334 /* advance packet data according to the body_returned pointer. We
nuclear@1	335 had to keep it around to return a pointer into the buffer last
nuclear@1	336 call */
nuclear@1	337
nuclear@1	338 os->body_fill-=os->body_returned;
nuclear@1	339 if(os->body_fill)
nuclear@1	340 memmove(os->body_data,os->body_data+os->body_returned,
nuclear@1	341 os->body_fill);
nuclear@1	342 os->body_returned=0;
nuclear@1	343 }
nuclear@1	344
nuclear@1	345 /* make sure we have the buffer storage */
nuclear@1	346 if(_os_body_expand(os,bytes) \|\| _os_lacing_expand(os,lacing_vals))
nuclear@1	347 return -1;
nuclear@1	348
nuclear@1	349 /* Copy in the submitted packet. Yes, the copy is a waste; this is
nuclear@1	350 the liability of overly clean abstraction for the time being. It
nuclear@1	351 will actually be fairly easy to eliminate the extra copy in the
nuclear@1	352 future */
nuclear@1	353
nuclear@1	354 for (i = 0; i < count; ++i) {
nuclear@1	355 memcpy(os->body_data+os->body_fill, iov[i].iov_base, iov[i].iov_len);
nuclear@1	356 os->body_fill += (int)iov[i].iov_len;
nuclear@1	357 }
nuclear@1	358
nuclear@1	359 /* Store lacing vals for this packet */
nuclear@1	360 for(i=0;i<lacing_vals-1;i++){
nuclear@1	361 os->lacing_vals[os->lacing_fill+i]=255;
nuclear@1	362 os->granule_vals[os->lacing_fill+i]=os->granulepos;
nuclear@1	363 }
nuclear@1	364 os->lacing_vals[os->lacing_fill+i]=bytes%255;
nuclear@1	365 os->granulepos=os->granule_vals[os->lacing_fill+i]=granulepos;
nuclear@1	366
nuclear@1	367 /* flag the first segment as the beginning of the packet */
nuclear@1	368 os->lacing_vals[os->lacing_fill]\|= 0x100;
nuclear@1	369
nuclear@1	370 os->lacing_fill+=lacing_vals;
nuclear@1	371
nuclear@1	372 /* for the sake of completeness */
nuclear@1	373 os->packetno++;
nuclear@1	374
nuclear@1	375 if(e_o_s)os->e_o_s=1;
nuclear@1	376
nuclear@1	377 return(0);
nuclear@1	378 }
nuclear@1	379
nuclear@1	380 int ogg_stream_packetin(ogg_stream_state os,ogg_packet op){
nuclear@1	381 ogg_iovec_t iov;
nuclear@1	382 iov.iov_base = op->packet;
nuclear@1	383 iov.iov_len = op->bytes;
nuclear@1	384 return ogg_stream_iovecin(os, &iov, 1, op->e_o_s, op->granulepos);
nuclear@1	385 }
nuclear@1	386
nuclear@1	387 /* Conditionally flush a page; force==0 will only flush nominal-size
nuclear@1	388 pages, force==1 forces us to flush a page regardless of page size
nuclear@1	389 so long as there's any data available at all. */
nuclear@1	390 static int ogg_stream_flush_i(ogg_stream_state os,ogg_page og, int force, int nfill){
nuclear@1	391 int i;
nuclear@1	392 int vals=0;
nuclear@1	393 int maxvals=(os->lacing_fill>255?255:os->lacing_fill);
nuclear@1	394 int bytes=0;
nuclear@1	395 long acc=0;
nuclear@1	396 ogg_int64_t granule_pos=-1;
nuclear@1	397
nuclear@1	398 if(ogg_stream_check(os)) return(0);
nuclear@1	399 if(maxvals==0) return(0);
nuclear@1	400
nuclear@1	401 /* construct a page */
nuclear@1	402 /* decide how many segments to include */
nuclear@1	403
nuclear@1	404 /* If this is the initial header case, the first page must only include
nuclear@1	405 the initial header packet */
nuclear@1	406 if(os->b_o_s==0){ /* 'initial header page' case */
nuclear@1	407 granule_pos=0;
nuclear@1	408 for(vals=0;vals<maxvals;vals++){
nuclear@1	409 if((os->lacing_vals[vals]&0x0ff)<255){
nuclear@1	410 vals++;
nuclear@1	411 break;
nuclear@1	412 }
nuclear@1	413 }
nuclear@1	414 }else{
nuclear@1	415
nuclear@1	416 /* The extra packets_done, packet_just_done logic here attempts to do two things:
nuclear@1	417 1) Don't unneccessarily span pages.
nuclear@1	418 2) Unless necessary, don't flush pages if there are less than four packets on
nuclear@1	419 them; this expands page size to reduce unneccessary overhead if incoming packets
nuclear@1	420 are large.
nuclear@1	421 These are not necessary behaviors, just 'always better than naive flushing'
nuclear@1	422 without requiring an application to explicitly request a specific optimized
nuclear@1	423 behavior. We'll want an explicit behavior setup pathway eventually as well. */
nuclear@1	424
nuclear@1	425 int packets_done=0;
nuclear@1	426 int packet_just_done=0;
nuclear@1	427 for(vals=0;vals<maxvals;vals++){
nuclear@1	428 if(acc>nfill && packet_just_done>=4){
nuclear@1	429 force=1;
nuclear@1	430 break;
nuclear@1	431 }
nuclear@1	432 acc+=os->lacing_vals[vals]&0x0ff;
nuclear@1	433 if((os->lacing_vals[vals]&0xff)<255){
nuclear@1	434 granule_pos=os->granule_vals[vals];
nuclear@1	435 packet_just_done=++packets_done;
nuclear@1	436 }else
nuclear@1	437 packet_just_done=0;
nuclear@1	438 }
nuclear@1	439 if(vals==255)force=1;
nuclear@1	440 }
nuclear@1	441
nuclear@1	442 if(!force) return(0);
nuclear@1	443
nuclear@1	444 /* construct the header in temp storage */
nuclear@1	445 memcpy(os->header,"OggS",4);
nuclear@1	446
nuclear@1	447 /* stream structure version */
nuclear@1	448 os->header[4]=0x00;
nuclear@1	449
nuclear@1	450 /* continued packet flag? */
nuclear@1	451 os->header[5]=0x00;
nuclear@1	452 if((os->lacing_vals[0]&0x100)==0)os->header[5]\|=0x01;
nuclear@1	453 /* first page flag? */
nuclear@1	454 if(os->b_o_s==0)os->header[5]\|=0x02;
nuclear@1	455 /* last page flag? */
nuclear@1	456 if(os->e_o_s && os->lacing_fill==vals)os->header[5]\|=0x04;
nuclear@1	457 os->b_o_s=1;
nuclear@1	458
nuclear@1	459 /* 64 bits of PCM position */
nuclear@1	460 for(i=6;i<14;i++){
nuclear@1	461 os->header[i]=(unsigned char)(granule_pos&0xff);
nuclear@1	462 granule_pos>>=8;
nuclear@1	463 }
nuclear@1	464
nuclear@1	465 /* 32 bits of stream serial number */
nuclear@1	466 {
nuclear@1	467 long serialno=os->serialno;
nuclear@1	468 for(i=14;i<18;i++){
nuclear@1	469 os->header[i]=(unsigned char)(serialno&0xff);
nuclear@1	470 serialno>>=8;
nuclear@1	471 }
nuclear@1	472 }
nuclear@1	473
nuclear@1	474 /* 32 bits of page counter (we have both counter and page header
nuclear@1	475 because this val can roll over) */
nuclear@1	476 if(os->pageno==-1)os->pageno=0; /* because someone called
nuclear@1	477 stream_reset; this would be a
nuclear@1	478 strange thing to do in an
nuclear@1	479 encode stream, but it has
nuclear@1	480 plausible uses */
nuclear@1	481 {
nuclear@1	482 long pageno=os->pageno++;
nuclear@1	483 for(i=18;i<22;i++){
nuclear@1	484 os->header[i]=(unsigned char)(pageno&0xff);
nuclear@1	485 pageno>>=8;
nuclear@1	486 }
nuclear@1	487 }
nuclear@1	488
nuclear@1	489 /* zero for computation; filled in later */
nuclear@1	490 os->header[22]=0;
nuclear@1	491 os->header[23]=0;
nuclear@1	492 os->header[24]=0;
nuclear@1	493 os->header[25]=0;
nuclear@1	494
nuclear@1	495 /* segment table */
nuclear@1	496 os->header[26]=(unsigned char)(vals&0xff);
nuclear@1	497 for(i=0;i<vals;i++)
nuclear@1	498 bytes+=os->header[i+27]=(unsigned char)(os->lacing_vals[i]&0xff);
nuclear@1	499
nuclear@1	500 /* set pointers in the ogg_page struct */
nuclear@1	501 og->header=os->header;
nuclear@1	502 og->header_len=os->header_fill=vals+27;
nuclear@1	503 og->body=os->body_data+os->body_returned;
nuclear@1	504 og->body_len=bytes;
nuclear@1	505
nuclear@1	506 /* advance the lacing data and set the body_returned pointer */
nuclear@1	507
nuclear@1	508 os->lacing_fill-=vals;
nuclear@1	509 memmove(os->lacing_vals,os->lacing_vals+vals,os->lacing_fillsizeof(os->lacing_vals));
nuclear@1	510 memmove(os->granule_vals,os->granule_vals+vals,os->lacing_fillsizeof(os->granule_vals));
nuclear@1	511 os->body_returned+=bytes;
nuclear@1	512
nuclear@1	513 /* calculate the checksum */
nuclear@1	514
nuclear@1	515 ogg_page_checksum_set(og);
nuclear@1	516
nuclear@1	517 /* done */
nuclear@1	518 return(1);
nuclear@1	519 }
nuclear@1	520
nuclear@1	521 /* This will flush remaining packets into a page (returning nonzero),
nuclear@1	522 even if there is not enough data to trigger a flush normally
nuclear@1	523 (undersized page). If there are no packets or partial packets to
nuclear@1	524 flush, ogg_stream_flush returns 0. Note that ogg_stream_flush will
nuclear@1	525 try to flush a normal sized page like ogg_stream_pageout; a call to
nuclear@1	526 ogg_stream_flush does not guarantee that all packets have flushed.
nuclear@1	527 Only a return value of 0 from ogg_stream_flush indicates all packet
nuclear@1	528 data is flushed into pages.
nuclear@1	529
nuclear@1	530 since ogg_stream_flush will flush the last page in a stream even if
nuclear@1	531 it's undersized, you almost certainly want to use ogg_stream_pageout
nuclear@1	532 (and not ogg_stream_flush) unless you specifically need to flush
nuclear@1	533 a page regardless of size in the middle of a stream. */
nuclear@1	534
nuclear@1	535 int ogg_stream_flush(ogg_stream_state os,ogg_page og){
nuclear@1	536 return ogg_stream_flush_i(os,og,1,4096);
nuclear@1	537 }
nuclear@1	538
nuclear@1	539 /* Like the above, but an argument is provided to adjust the nominal
nuclear@1	540 page size for applications which are smart enough to provide their
nuclear@1	541 own delay based flushing */
nuclear@1	542
nuclear@1	543 int ogg_stream_flush_fill(ogg_stream_state os,ogg_page og, int nfill){
nuclear@1	544 return ogg_stream_flush_i(os,og,1,nfill);
nuclear@1	545 }
nuclear@1	546
nuclear@1	547 /* This constructs pages from buffered packet segments. The pointers
nuclear@1	548 returned are to static buffers; do not free. The returned buffers are
nuclear@1	549 good only until the next call (using the same ogg_stream_state) */
nuclear@1	550
nuclear@1	551 int ogg_stream_pageout(ogg_stream_state os, ogg_page og){
nuclear@1	552 int force=0;
nuclear@1	553 if(ogg_stream_check(os)) return 0;
nuclear@1	554
nuclear@1	555 if((os->e_o_s&&os->lacing_fill) \|\| /* 'were done, now flush' case */
nuclear@1	556 (os->lacing_fill&&!os->b_o_s)) /* 'initial header page' case */
nuclear@1	557 force=1;
nuclear@1	558
nuclear@1	559 return(ogg_stream_flush_i(os,og,force,4096));
nuclear@1	560 }
nuclear@1	561
nuclear@1	562 /* Like the above, but an argument is provided to adjust the nominal
nuclear@1	563 page size for applications which are smart enough to provide their
nuclear@1	564 own delay based flushing */
nuclear@1	565
nuclear@1	566 int ogg_stream_pageout_fill(ogg_stream_state os, ogg_page og, int nfill){
nuclear@1	567 int force=0;
nuclear@1	568 if(ogg_stream_check(os)) return 0;
nuclear@1	569
nuclear@1	570 if((os->e_o_s&&os->lacing_fill) \|\| /* 'were done, now flush' case */
nuclear@1	571 (os->lacing_fill&&!os->b_o_s)) /* 'initial header page' case */
nuclear@1	572 force=1;
nuclear@1	573
nuclear@1	574 return(ogg_stream_flush_i(os,og,force,nfill));
nuclear@1	575 }
nuclear@1	576
nuclear@1	577 int ogg_stream_eos(ogg_stream_state *os){
nuclear@1	578 if(ogg_stream_check(os)) return 1;
nuclear@1	579 return os->e_o_s;
nuclear@1	580 }
nuclear@1	581
nuclear@1	582 /* DECODING PRIMITIVES: packet streaming layer **********************/
nuclear@1	583
nuclear@1	584 /* This has two layers to place more of the multi-serialno and paging
nuclear@1	585 control in the application's hands. First, we expose a data buffer
nuclear@1	586 using ogg_sync_buffer(). The app either copies into the
nuclear@1	587 buffer, or passes it directly to read(), etc. We then call
nuclear@1	588 ogg_sync_wrote() to tell how many bytes we just added.
nuclear@1	589
nuclear@1	590 Pages are returned (pointers into the buffer in ogg_sync_state)
nuclear@1	591 by ogg_sync_pageout(). The page is then submitted to
nuclear@1	592 ogg_stream_pagein() along with the appropriate
nuclear@1	593 ogg_stream_state* (ie, matching serialno). We then get raw
nuclear@1	594 packets out calling ogg_stream_packetout() with a
nuclear@1	595 ogg_stream_state. */
nuclear@1	596
nuclear@1	597 /* initialize the struct to a known state */
nuclear@1	598 int ogg_sync_init(ogg_sync_state *oy){
nuclear@1	599 if(oy){
nuclear@1	600 oy->storage = -1; /* used as a readiness flag */
nuclear@1	601 memset(oy,0,sizeof(*oy));
nuclear@1	602 }
nuclear@1	603 return(0);
nuclear@1	604 }
nuclear@1	605
nuclear@1	606 /* clear non-flat storage within */
nuclear@1	607 int ogg_sync_clear(ogg_sync_state *oy){
nuclear@1	608 if(oy){
nuclear@1	609 if(oy->data)_ogg_free(oy->data);
nuclear@1	610 memset(oy,0,sizeof(*oy));
nuclear@1	611 }
nuclear@1	612 return(0);
nuclear@1	613 }
nuclear@1	614
nuclear@1	615 int ogg_sync_destroy(ogg_sync_state *oy){
nuclear@1	616 if(oy){
nuclear@1	617 ogg_sync_clear(oy);
nuclear@1	618 _ogg_free(oy);
nuclear@1	619 }
nuclear@1	620 return(0);
nuclear@1	621 }
nuclear@1	622
nuclear@1	623 int ogg_sync_check(ogg_sync_state *oy){
nuclear@1	624 if(oy->storage<0) return -1;
nuclear@1	625 return 0;
nuclear@1	626 }
nuclear@1	627
nuclear@1	628 char ogg_sync_buffer(ogg_sync_state oy, long size){
nuclear@1	629 if(ogg_sync_check(oy)) return NULL;
nuclear@1	630
nuclear@1	631 /* first, clear out any space that has been previously returned */
nuclear@1	632 if(oy->returned){
nuclear@1	633 oy->fill-=oy->returned;
nuclear@1	634 if(oy->fill>0)
nuclear@1	635 memmove(oy->data,oy->data+oy->returned,oy->fill);
nuclear@1	636 oy->returned=0;
nuclear@1	637 }
nuclear@1	638
nuclear@1	639 if(size>oy->storage-oy->fill){
nuclear@1	640 /* We need to extend the internal buffer */
nuclear@1	641 long newsize=size+oy->fill+4096; /* an extra page to be nice */
nuclear@1	642 void *ret;
nuclear@1	643
nuclear@1	644 if(oy->data)
nuclear@1	645 ret=_ogg_realloc(oy->data,newsize);
nuclear@1	646 else
nuclear@1	647 ret=_ogg_malloc(newsize);
nuclear@1	648 if(!ret){
nuclear@1	649 ogg_sync_clear(oy);
nuclear@1	650 return NULL;
nuclear@1	651 }
nuclear@1	652 oy->data=ret;
nuclear@1	653 oy->storage=newsize;
nuclear@1	654 }
nuclear@1	655
nuclear@1	656 /* expose a segment at least as large as requested at the fill mark */
nuclear@1	657 return((char *)oy->data+oy->fill);
nuclear@1	658 }
nuclear@1	659
nuclear@1	660 int ogg_sync_wrote(ogg_sync_state *oy, long bytes){
nuclear@1	661 if(ogg_sync_check(oy))return -1;
nuclear@1	662 if(oy->fill+bytes>oy->storage)return -1;
nuclear@1	663 oy->fill+=bytes;
nuclear@1	664 return(0);
nuclear@1	665 }
nuclear@1	666
nuclear@1	667 /* sync the stream. This is meant to be useful for finding page
nuclear@1	668 boundaries.
nuclear@1	669
nuclear@1	670 return values for this:
nuclear@1	671 -n) skipped n bytes
nuclear@1	672 0) page not ready; more data (no bytes skipped)
nuclear@1	673 n) page synced at current location; page length n bytes
nuclear@1	674
nuclear@1	675 */
nuclear@1	676
nuclear@1	677 long ogg_sync_pageseek(ogg_sync_state oy,ogg_page og){
nuclear@1	678 unsigned char *page=oy->data+oy->returned;
nuclear@1	679 unsigned char *next;
nuclear@1	680 long bytes=oy->fill-oy->returned;
nuclear@1	681
nuclear@1	682 if(ogg_sync_check(oy))return 0;
nuclear@1	683
nuclear@1	684 if(oy->headerbytes==0){
nuclear@1	685 int headerbytes,i;
nuclear@1	686 if(bytes<27)return(0); /* not enough for a header */
nuclear@1	687
nuclear@1	688 /* verify capture pattern */
nuclear@1	689 if(memcmp(page,"OggS",4))goto sync_fail;
nuclear@1	690
nuclear@1	691 headerbytes=page[26]+27;
nuclear@1	692 if(bytes<headerbytes)return(0); /* not enough for header + seg table */
nuclear@1	693
nuclear@1	694 /* count up body length in the segment table */
nuclear@1	695
nuclear@1	696 for(i=0;i<page[26];i++)
nuclear@1	697 oy->bodybytes+=page[27+i];
nuclear@1	698 oy->headerbytes=headerbytes;
nuclear@1	699 }
nuclear@1	700
nuclear@1	701 if(oy->bodybytes+oy->headerbytes>bytes)return(0);
nuclear@1	702
nuclear@1	703 /* The whole test page is buffered. Verify the checksum */
nuclear@1	704 {
nuclear@1	705 /* Grab the checksum bytes, set the header field to zero */
nuclear@1	706 char chksum[4];
nuclear@1	707 ogg_page log;
nuclear@1	708
nuclear@1	709 memcpy(chksum,page+22,4);
nuclear@1	710 memset(page+22,0,4);
nuclear@1	711
nuclear@1	712 /* set up a temp page struct and recompute the checksum */
nuclear@1	713 log.header=page;
nuclear@1	714 log.header_len=oy->headerbytes;
nuclear@1	715 log.body=page+oy->headerbytes;
nuclear@1	716 log.body_len=oy->bodybytes;
nuclear@1	717 ogg_page_checksum_set(&log);
nuclear@1	718
nuclear@1	719 /* Compare */
nuclear@1	720 if(memcmp(chksum,page+22,4)){
nuclear@1	721 /* D'oh. Mismatch! Corrupt page (or miscapture and not a page
nuclear@1	722 at all) */
nuclear@1	723 /* replace the computed checksum with the one actually read in */
nuclear@1	724 memcpy(page+22,chksum,4);
nuclear@1	725
nuclear@1	726 /* Bad checksum. Lose sync */
nuclear@1	727 goto sync_fail;
nuclear@1	728 }
nuclear@1	729 }
nuclear@1	730
nuclear@1	731 /* yes, have a whole page all ready to go */
nuclear@1	732 {
nuclear@1	733 unsigned char *page=oy->data+oy->returned;
nuclear@1	734 long bytes;
nuclear@1	735
nuclear@1	736 if(og){
nuclear@1	737 og->header=page;
nuclear@1	738 og->header_len=oy->headerbytes;
nuclear@1	739 og->body=page+oy->headerbytes;
nuclear@1	740 og->body_len=oy->bodybytes;
nuclear@1	741 }
nuclear@1	742
nuclear@1	743 oy->unsynced=0;
nuclear@1	744 oy->returned+=(bytes=oy->headerbytes+oy->bodybytes);
nuclear@1	745 oy->headerbytes=0;
nuclear@1	746 oy->bodybytes=0;
nuclear@1	747 return(bytes);
nuclear@1	748 }
nuclear@1	749
nuclear@1	750 sync_fail:
nuclear@1	751
nuclear@1	752 oy->headerbytes=0;
nuclear@1	753 oy->bodybytes=0;
nuclear@1	754
nuclear@1	755 /* search for possible capture */
nuclear@1	756 next=memchr(page+1,'O',bytes-1);
nuclear@1	757 if(!next)
nuclear@1	758 next=oy->data+oy->fill;
nuclear@1	759
nuclear@1	760 oy->returned=(int)(next-oy->data);
nuclear@1	761 return((long)-(next-page));
nuclear@1	762 }
nuclear@1	763
nuclear@1	764 /* sync the stream and get a page. Keep trying until we find a page.
nuclear@1	765 Suppress 'sync errors' after reporting the first.
nuclear@1	766
nuclear@1	767 return values:
nuclear@1	768 -1) recapture (hole in data)
nuclear@1	769 0) need more data
nuclear@1	770 1) page returned
nuclear@1	771
nuclear@1	772 Returns pointers into buffered data; invalidated by next call to
nuclear@1	773 _stream, _clear, _init, or _buffer */
nuclear@1	774
nuclear@1	775 int ogg_sync_pageout(ogg_sync_state oy, ogg_page og){
nuclear@1	776
nuclear@1	777 if(ogg_sync_check(oy))return 0;
nuclear@1	778
nuclear@1	779 /* all we need to do is verify a page at the head of the stream
nuclear@1	780 buffer. If it doesn't verify, we look for the next potential
nuclear@1	781 frame */
nuclear@1	782
nuclear@1	783 for(;;){
nuclear@1	784 long ret=ogg_sync_pageseek(oy,og);
nuclear@1	785 if(ret>0){
nuclear@1	786 /* have a page */
nuclear@1	787 return(1);
nuclear@1	788 }
nuclear@1	789 if(ret==0){
nuclear@1	790 /* need more data */
nuclear@1	791 return(0);
nuclear@1	792 }
nuclear@1	793
nuclear@1	794 /* head did not start a synced page... skipped some bytes */
nuclear@1	795 if(!oy->unsynced){
nuclear@1	796 oy->unsynced=1;
nuclear@1	797 return(-1);
nuclear@1	798 }
nuclear@1	799
nuclear@1	800 /* loop. keep looking */
nuclear@1	801
nuclear@1	802 }
nuclear@1	803 }
nuclear@1	804
nuclear@1	805 /* add the incoming page to the stream state; we decompose the page
nuclear@1	806 into packet segments here as well. */
nuclear@1	807
nuclear@1	808 int ogg_stream_pagein(ogg_stream_state os, ogg_page og){
nuclear@1	809 unsigned char *header=og->header;
nuclear@1	810 unsigned char *body=og->body;
nuclear@1	811 long bodysize=og->body_len;
nuclear@1	812 int segptr=0;
nuclear@1	813
nuclear@1	814 int version=ogg_page_version(og);
nuclear@1	815 int continued=ogg_page_continued(og);
nuclear@1	816 int bos=ogg_page_bos(og);
nuclear@1	817 int eos=ogg_page_eos(og);
nuclear@1	818 ogg_int64_t granulepos=ogg_page_granulepos(og);
nuclear@1	819 int serialno=ogg_page_serialno(og);
nuclear@1	820 long pageno=ogg_page_pageno(og);
nuclear@1	821 int segments=header[26];
nuclear@1	822
nuclear@1	823 if(ogg_stream_check(os)) return -1;
nuclear@1	824
nuclear@1	825 /* clean up 'returned data' */
nuclear@1	826 {
nuclear@1	827 long lr=os->lacing_returned;
nuclear@1	828 long br=os->body_returned;
nuclear@1	829
nuclear@1	830 /* body data */
nuclear@1	831 if(br){
nuclear@1	832 os->body_fill-=br;
nuclear@1	833 if(os->body_fill)
nuclear@1	834 memmove(os->body_data,os->body_data+br,os->body_fill);
nuclear@1	835 os->body_returned=0;
nuclear@1	836 }
nuclear@1	837
nuclear@1	838 if(lr){
nuclear@1	839 /* segment table */
nuclear@1	840 if(os->lacing_fill-lr){
nuclear@1	841 memmove(os->lacing_vals,os->lacing_vals+lr,
nuclear@1	842 (os->lacing_fill-lr)sizeof(os->lacing_vals));
nuclear@1	843 memmove(os->granule_vals,os->granule_vals+lr,
nuclear@1	844 (os->lacing_fill-lr)sizeof(os->granule_vals));
nuclear@1	845 }
nuclear@1	846 os->lacing_fill-=lr;
nuclear@1	847 os->lacing_packet-=lr;
nuclear@1	848 os->lacing_returned=0;
nuclear@1	849 }
nuclear@1	850 }
nuclear@1	851
nuclear@1	852 /* check the serial number */
nuclear@1	853 if(serialno!=os->serialno)return(-1);
nuclear@1	854 if(version>0)return(-1);
nuclear@1	855
nuclear@1	856 if(_os_lacing_expand(os,segments+1)) return -1;
nuclear@1	857
nuclear@1	858 /* are we in sequence? */
nuclear@1	859 if(pageno!=os->pageno){
nuclear@1	860 int i;
nuclear@1	861
nuclear@1	862 /* unroll previous partial packet (if any) */
nuclear@1	863 for(i=os->lacing_packet;i<os->lacing_fill;i++)
nuclear@1	864 os->body_fill-=os->lacing_vals[i]&0xff;
nuclear@1	865 os->lacing_fill=os->lacing_packet;
nuclear@1	866
nuclear@1	867 /* make a note of dropped data in segment table */
nuclear@1	868 if(os->pageno!=-1){
nuclear@1	869 os->lacing_vals[os->lacing_fill++]=0x400;
nuclear@1	870 os->lacing_packet++;
nuclear@1	871 }
nuclear@1	872 }
nuclear@1	873
nuclear@1	874 /* are we a 'continued packet' page? If so, we may need to skip
nuclear@1	875 some segments */
nuclear@1	876 if(continued){
nuclear@1	877 if(os->lacing_fill<1 \|\|
nuclear@1	878 os->lacing_vals[os->lacing_fill-1]==0x400){
nuclear@1	879 bos=0;
nuclear@1	880 for(;segptr<segments;segptr++){
nuclear@1	881 int val=header[27+segptr];
nuclear@1	882 body+=val;
nuclear@1	883 bodysize-=val;
nuclear@1	884 if(val<255){
nuclear@1	885 segptr++;
nuclear@1	886 break;
nuclear@1	887 }
nuclear@1	888 }
nuclear@1	889 }
nuclear@1	890 }
nuclear@1	891
nuclear@1	892 if(bodysize){
nuclear@1	893 if(_os_body_expand(os,bodysize)) return -1;
nuclear@1	894 memcpy(os->body_data+os->body_fill,body,bodysize);
nuclear@1	895 os->body_fill+=bodysize;
nuclear@1	896 }
nuclear@1	897
nuclear@1	898 {
nuclear@1	899 int saved=-1;
nuclear@1	900 while(segptr<segments){
nuclear@1	901 int val=header[27+segptr];
nuclear@1	902 os->lacing_vals[os->lacing_fill]=val;
nuclear@1	903 os->granule_vals[os->lacing_fill]=-1;
nuclear@1	904
nuclear@1	905 if(bos){
nuclear@1	906 os->lacing_vals[os->lacing_fill]\|=0x100;
nuclear@1	907 bos=0;
nuclear@1	908 }
nuclear@1	909
nuclear@1	910 if(val<255)saved=os->lacing_fill;
nuclear@1	911
nuclear@1	912 os->lacing_fill++;
nuclear@1	913 segptr++;
nuclear@1	914
nuclear@1	915 if(val<255)os->lacing_packet=os->lacing_fill;
nuclear@1	916 }
nuclear@1	917
nuclear@1	918 /* set the granulepos on the last granuleval of the last full packet */
nuclear@1	919 if(saved!=-1){
nuclear@1	920 os->granule_vals[saved]=granulepos;
nuclear@1	921 }
nuclear@1	922
nuclear@1	923 }
nuclear@1	924
nuclear@1	925 if(eos){
nuclear@1	926 os->e_o_s=1;
nuclear@1	927 if(os->lacing_fill>0)
nuclear@1	928 os->lacing_vals[os->lacing_fill-1]\|=0x200;
nuclear@1	929 }
nuclear@1	930
nuclear@1	931 os->pageno=pageno+1;
nuclear@1	932
nuclear@1	933 return(0);
nuclear@1	934 }
nuclear@1	935
nuclear@1	936 /* clear things to an initial state. Good to call, eg, before seeking */
nuclear@1	937 int ogg_sync_reset(ogg_sync_state *oy){
nuclear@1	938 if(ogg_sync_check(oy))return -1;
nuclear@1	939
nuclear@1	940 oy->fill=0;
nuclear@1	941 oy->returned=0;
nuclear@1	942 oy->unsynced=0;
nuclear@1	943 oy->headerbytes=0;
nuclear@1	944 oy->bodybytes=0;
nuclear@1	945 return(0);
nuclear@1	946 }
nuclear@1	947
nuclear@1	948 int ogg_stream_reset(ogg_stream_state *os){
nuclear@1	949 if(ogg_stream_check(os)) return -1;
nuclear@1	950
nuclear@1	951 os->body_fill=0;
nuclear@1	952 os->body_returned=0;
nuclear@1	953
nuclear@1	954 os->lacing_fill=0;
nuclear@1	955 os->lacing_packet=0;
nuclear@1	956 os->lacing_returned=0;
nuclear@1	957
nuclear@1	958 os->header_fill=0;
nuclear@1	959
nuclear@1	960 os->e_o_s=0;
nuclear@1	961 os->b_o_s=0;
nuclear@1	962 os->pageno=-1;
nuclear@1	963 os->packetno=0;
nuclear@1	964 os->granulepos=0;
nuclear@1	965
nuclear@1	966 return(0);
nuclear@1	967 }
nuclear@1	968
nuclear@1	969 int ogg_stream_reset_serialno(ogg_stream_state *os,int serialno){
nuclear@1	970 if(ogg_stream_check(os)) return -1;
nuclear@1	971 ogg_stream_reset(os);
nuclear@1	972 os->serialno=serialno;
nuclear@1	973 return(0);
nuclear@1	974 }
nuclear@1	975
nuclear@1	976 static int _packetout(ogg_stream_state os,ogg_packet op,int adv){
nuclear@1	977
nuclear@1	978 /* The last part of decode. We have the stream broken into packet
nuclear@1	979 segments. Now we need to group them into packets (or return the
nuclear@1	980 out of sync markers) */
nuclear@1	981
nuclear@1	982 int ptr=os->lacing_returned;
nuclear@1	983
nuclear@1	984 if(os->lacing_packet<=ptr)return(0);
nuclear@1	985
nuclear@1	986 if(os->lacing_vals[ptr]&0x400){
nuclear@1	987 /* we need to tell the codec there's a gap; it might need to
nuclear@1	988 handle previous packet dependencies. */
nuclear@1	989 os->lacing_returned++;
nuclear@1	990 os->packetno++;
nuclear@1	991 return(-1);
nuclear@1	992 }
nuclear@1	993
nuclear@1	994 if(!op && !adv)return(1); /* just using peek as an inexpensive way
nuclear@1	995 to ask if there's a whole packet
nuclear@1	996 waiting */
nuclear@1	997
nuclear@1	998 /* Gather the whole packet. We'll have no holes or a partial packet */
nuclear@1	999 {
nuclear@1	1000 int size=os->lacing_vals[ptr]&0xff;
nuclear@1	1001 long bytes=size;
nuclear@1	1002 int eos=os->lacing_vals[ptr]&0x200; /* last packet of the stream? */
nuclear@1	1003 int bos=os->lacing_vals[ptr]&0x100; /* first packet of the stream? */
nuclear@1	1004
nuclear@1	1005 while(size==255){
nuclear@1	1006 int val=os->lacing_vals[++ptr];
nuclear@1	1007 size=val&0xff;
nuclear@1	1008 if(val&0x200)eos=0x200;
nuclear@1	1009 bytes+=size;
nuclear@1	1010 }
nuclear@1	1011
nuclear@1	1012 if(op){
nuclear@1	1013 op->e_o_s=eos;
nuclear@1	1014 op->b_o_s=bos;
nuclear@1	1015 op->packet=os->body_data+os->body_returned;
nuclear@1	1016 op->packetno=os->packetno;
nuclear@1	1017 op->granulepos=os->granule_vals[ptr];
nuclear@1	1018 op->bytes=bytes;
nuclear@1	1019 }
nuclear@1	1020
nuclear@1	1021 if(adv){
nuclear@1	1022 os->body_returned+=bytes;
nuclear@1	1023 os->lacing_returned=ptr+1;
nuclear@1	1024 os->packetno++;
nuclear@1	1025 }
nuclear@1	1026 }
nuclear@1	1027 return(1);
nuclear@1	1028 }
nuclear@1	1029
nuclear@1	1030 int ogg_stream_packetout(ogg_stream_state os,ogg_packet op){
nuclear@1	1031 if(ogg_stream_check(os)) return 0;
nuclear@1	1032 return _packetout(os,op,1);
nuclear@1	1033 }
nuclear@1	1034
nuclear@1	1035 int ogg_stream_packetpeek(ogg_stream_state os,ogg_packet op){
nuclear@1	1036 if(ogg_stream_check(os)) return 0;
nuclear@1	1037 return _packetout(os,op,0);
nuclear@1	1038 }
nuclear@1	1039
nuclear@1	1040 void ogg_packet_clear(ogg_packet *op) {
nuclear@1	1041 _ogg_free(op->packet);
nuclear@1	1042 memset(op, 0, sizeof(*op));
nuclear@1	1043 }
nuclear@1	1044
nuclear@1	1045 #ifdef _V_SELFTEST
nuclear@1	1046 #include <stdio.h>
nuclear@1	1047
nuclear@1	1048 ogg_stream_state os_en, os_de;
nuclear@1	1049 ogg_sync_state oy;
nuclear@1	1050
nuclear@1	1051 void checkpacket(ogg_packet *op,long len, int no, long pos){
nuclear@1	1052 long j;
nuclear@1	1053 static int sequence=0;
nuclear@1	1054 static int lastno=0;
nuclear@1	1055
nuclear@1	1056 if(op->bytes!=len){
nuclear@1	1057 fprintf(stderr,"incorrect packet length (%ld != %ld)!\n",op->bytes,len);
nuclear@1	1058 exit(1);
nuclear@1	1059 }
nuclear@1	1060 if(op->granulepos!=pos){
nuclear@1	1061 fprintf(stderr,"incorrect packet granpos (%ld != %ld)!\n",(long)op->granulepos,pos);
nuclear@1	1062 exit(1);
nuclear@1	1063 }
nuclear@1	1064
nuclear@1	1065 /* packet number just follows sequence/gap; adjust the input number
nuclear@1	1066 for that */
nuclear@1	1067 if(no==0){
nuclear@1	1068 sequence=0;
nuclear@1	1069 }else{
nuclear@1	1070 sequence++;
nuclear@1	1071 if(no>lastno+1)
nuclear@1	1072 sequence++;
nuclear@1	1073 }
nuclear@1	1074 lastno=no;
nuclear@1	1075 if(op->packetno!=sequence){
nuclear@1	1076 fprintf(stderr,"incorrect packet sequence %ld != %d\n",
nuclear@1	1077 (long)(op->packetno),sequence);
nuclear@1	1078 exit(1);
nuclear@1	1079 }
nuclear@1	1080
nuclear@1	1081 /* Test data */
nuclear@1	1082 for(j=0;j<op->bytes;j++)
nuclear@1	1083 if(op->packet[j]!=((j+no)&0xff)){
nuclear@1	1084 fprintf(stderr,"body data mismatch (1) at pos %ld: %x!=%lx!\n\n",
nuclear@1	1085 j,op->packet[j],(j+no)&0xff);
nuclear@1	1086 exit(1);
nuclear@1	1087 }
nuclear@1	1088 }
nuclear@1	1089
nuclear@1	1090 void check_page(unsigned char data,const int header,ogg_page *og){
nuclear@1	1091 long j;
nuclear@1	1092 /* Test data */
nuclear@1	1093 for(j=0;j<og->body_len;j++)
nuclear@1	1094 if(og->body[j]!=data[j]){
nuclear@1	1095 fprintf(stderr,"body data mismatch (2) at pos %ld: %x!=%x!\n\n",
nuclear@1	1096 j,data[j],og->body[j]);
nuclear@1	1097 exit(1);
nuclear@1	1098 }
nuclear@1	1099
nuclear@1	1100 /* Test header */
nuclear@1	1101 for(j=0;j<og->header_len;j++){
nuclear@1	1102 if(og->header[j]!=header[j]){
nuclear@1	1103 fprintf(stderr,"header content mismatch at pos %ld:\n",j);
nuclear@1	1104 for(j=0;j<header[26]+27;j++)
nuclear@1	1105 fprintf(stderr," (%ld)%02x:%02x",j,header[j],og->header[j]);
nuclear@1	1106 fprintf(stderr,"\n");
nuclear@1	1107 exit(1);
nuclear@1	1108 }
nuclear@1	1109 }
nuclear@1	1110 if(og->header_len!=header[26]+27){
nuclear@1	1111 fprintf(stderr,"header length incorrect! (%ld!=%d)\n",
nuclear@1	1112 og->header_len,header[26]+27);
nuclear@1	1113 exit(1);
nuclear@1	1114 }
nuclear@1	1115 }
nuclear@1	1116
nuclear@1	1117 void print_header(ogg_page *og){
nuclear@1	1118 int j;
nuclear@1	1119 fprintf(stderr,"\nHEADER:\n");
nuclear@1	1120 fprintf(stderr," capture: %c %c %c %c version: %d flags: %x\n",
nuclear@1	1121 og->header[0],og->header[1],og->header[2],og->header[3],
nuclear@1	1122 (int)og->header[4],(int)og->header[5]);
nuclear@1	1123
nuclear@1	1124 fprintf(stderr," granulepos: %d serialno: %d pageno: %ld\n",
nuclear@1	1125 (og->header[9]<<24)\|(og->header[8]<<16)\|
nuclear@1	1126 (og->header[7]<<8)\|og->header[6],
nuclear@1	1127 (og->header[17]<<24)\|(og->header[16]<<16)\|
nuclear@1	1128 (og->header[15]<<8)\|og->header[14],
nuclear@1	1129 ((long)(og->header[21])<<24)\|(og->header[20]<<16)\|
nuclear@1	1130 (og->header[19]<<8)\|og->header[18]);
nuclear@1	1131
nuclear@1	1132 fprintf(stderr," checksum: %02x:%02x:%02x:%02x\n segments: %d (",
nuclear@1	1133 (int)og->header[22],(int)og->header[23],
nuclear@1	1134 (int)og->header[24],(int)og->header[25],
nuclear@1	1135 (int)og->header[26]);
nuclear@1	1136
nuclear@1	1137 for(j=27;j<og->header_len;j++)
nuclear@1	1138 fprintf(stderr,"%d ",(int)og->header[j]);
nuclear@1	1139 fprintf(stderr,")\n\n");
nuclear@1	1140 }
nuclear@1	1141
nuclear@1	1142 void copy_page(ogg_page *og){
nuclear@1	1143 unsigned char *temp=_ogg_malloc(og->header_len);
nuclear@1	1144 memcpy(temp,og->header,og->header_len);
nuclear@1	1145 og->header=temp;
nuclear@1	1146
nuclear@1	1147 temp=_ogg_malloc(og->body_len);
nuclear@1	1148 memcpy(temp,og->body,og->body_len);
nuclear@1	1149 og->body=temp;
nuclear@1	1150 }
nuclear@1	1151
nuclear@1	1152 void free_page(ogg_page *og){
nuclear@1	1153 _ogg_free (og->header);
nuclear@1	1154 _ogg_free (og->body);
nuclear@1	1155 }
nuclear@1	1156
nuclear@1	1157 void error(void){
nuclear@1	1158 fprintf(stderr,"error!\n");
nuclear@1	1159 exit(1);
nuclear@1	1160 }
nuclear@1	1161
nuclear@1	1162 /* 17 only */
nuclear@1	1163 const int head1_0[] = {0x4f,0x67,0x67,0x53,0,0x06,
nuclear@1	1164 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1165 0x01,0x02,0x03,0x04,0,0,0,0,
nuclear@1	1166 0x15,0xed,0xec,0x91,
nuclear@1	1167 1,
nuclear@1	1168 17};
nuclear@1	1169
nuclear@1	1170 /* 17, 254, 255, 256, 500, 510, 600 byte, pad */
nuclear@1	1171 const int head1_1[] = {0x4f,0x67,0x67,0x53,0,0x02,
nuclear@1	1172 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1173 0x01,0x02,0x03,0x04,0,0,0,0,
nuclear@1	1174 0x59,0x10,0x6c,0x2c,
nuclear@1	1175 1,
nuclear@1	1176 17};
nuclear@1	1177 const int head2_1[] = {0x4f,0x67,0x67,0x53,0,0x04,
nuclear@1	1178 0x07,0x18,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1179 0x01,0x02,0x03,0x04,1,0,0,0,
nuclear@1	1180 0x89,0x33,0x85,0xce,
nuclear@1	1181 13,
nuclear@1	1182 254,255,0,255,1,255,245,255,255,0,
nuclear@1	1183 255,255,90};
nuclear@1	1184
nuclear@1	1185 /* nil packets; beginning,middle,end */
nuclear@1	1186 const int head1_2[] = {0x4f,0x67,0x67,0x53,0,0x02,
nuclear@1	1187 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1188 0x01,0x02,0x03,0x04,0,0,0,0,
nuclear@1	1189 0xff,0x7b,0x23,0x17,
nuclear@1	1190 1,
nuclear@1	1191 0};
nuclear@1	1192 const int head2_2[] = {0x4f,0x67,0x67,0x53,0,0x04,
nuclear@1	1193 0x07,0x28,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1194 0x01,0x02,0x03,0x04,1,0,0,0,
nuclear@1	1195 0x5c,0x3f,0x66,0xcb,
nuclear@1	1196 17,
nuclear@1	1197 17,254,255,0,0,255,1,0,255,245,255,255,0,
nuclear@1	1198 255,255,90,0};
nuclear@1	1199
nuclear@1	1200 /* large initial packet */
nuclear@1	1201 const int head1_3[] = {0x4f,0x67,0x67,0x53,0,0x02,
nuclear@1	1202 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1203 0x01,0x02,0x03,0x04,0,0,0,0,
nuclear@1	1204 0x01,0x27,0x31,0xaa,
nuclear@1	1205 18,
nuclear@1	1206 255,255,255,255,255,255,255,255,
nuclear@1	1207 255,255,255,255,255,255,255,255,255,10};
nuclear@1	1208
nuclear@1	1209 const int head2_3[] = {0x4f,0x67,0x67,0x53,0,0x04,
nuclear@1	1210 0x07,0x08,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1211 0x01,0x02,0x03,0x04,1,0,0,0,
nuclear@1	1212 0x7f,0x4e,0x8a,0xd2,
nuclear@1	1213 4,
nuclear@1	1214 255,4,255,0};
nuclear@1	1215
nuclear@1	1216
nuclear@1	1217 /* continuing packet test */
nuclear@1	1218 const int head1_4[] = {0x4f,0x67,0x67,0x53,0,0x02,
nuclear@1	1219 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1220 0x01,0x02,0x03,0x04,0,0,0,0,
nuclear@1	1221 0xff,0x7b,0x23,0x17,
nuclear@1	1222 1,
nuclear@1	1223 0};
nuclear@1	1224
nuclear@1	1225 const int head2_4[] = {0x4f,0x67,0x67,0x53,0,0x00,
nuclear@1	1226 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
nuclear@1	1227 0x01,0x02,0x03,0x04,1,0,0,0,
nuclear@1	1228 0xf8,0x3c,0x19,0x79,
nuclear@1	1229 255,
nuclear@1	1230 255,255,255,255,255,255,255,255,
nuclear@1	1231 255,255,255,255,255,255,255,255,
nuclear@1	1232 255,255,255,255,255,255,255,255,
nuclear@1	1233 255,255,255,255,255,255,255,255,
nuclear@1	1234 255,255,255,255,255,255,255,255,
nuclear@1	1235 255,255,255,255,255,255,255,255,
nuclear@1	1236 255,255,255,255,255,255,255,255,
nuclear@1	1237 255,255,255,255,255,255,255,255,
nuclear@1	1238 255,255,255,255,255,255,255,255,
nuclear@1	1239 255,255,255,255,255,255,255,255,
nuclear@1	1240 255,255,255,255,255,255,255,255,
nuclear@1	1241 255,255,255,255,255,255,255,255,
nuclear@1	1242 255,255,255,255,255,255,255,255,
nuclear@1	1243 255,255,255,255,255,255,255,255,
nuclear@1	1244 255,255,255,255,255,255,255,255,
nuclear@1	1245 255,255,255,255,255,255,255,255,
nuclear@1	1246 255,255,255,255,255,255,255,255,
nuclear@1	1247 255,255,255,255,255,255,255,255,
nuclear@1	1248 255,255,255,255,255,255,255,255,
nuclear@1	1249 255,255,255,255,255,255,255,255,
nuclear@1	1250 255,255,255,255,255,255,255,255,
nuclear@1	1251 255,255,255,255,255,255,255,255,
nuclear@1	1252 255,255,255,255,255,255,255,255,
nuclear@1	1253 255,255,255,255,255,255,255,255,
nuclear@1	1254 255,255,255,255,255,255,255,255,
nuclear@1	1255 255,255,255,255,255,255,255,255,
nuclear@1	1256 255,255,255,255,255,255,255,255,
nuclear@1	1257 255,255,255,255,255,255,255,255,
nuclear@1	1258 255,255,255,255,255,255,255,255,
nuclear@1	1259 255,255,255,255,255,255,255,255,
nuclear@1	1260 255,255,255,255,255,255,255,255,
nuclear@1	1261 255,255,255,255,255,255,255};
nuclear@1	1262
nuclear@1	1263 const int head3_4[] = {0x4f,0x67,0x67,0x53,0,0x05,
nuclear@1	1264 0x07,0x0c,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1265 0x01,0x02,0x03,0x04,2,0,0,0,
nuclear@1	1266 0x38,0xe6,0xb6,0x28,
nuclear@1	1267 6,
nuclear@1	1268 255,220,255,4,255,0};
nuclear@1	1269
nuclear@1	1270
nuclear@1	1271 /* spill expansion test */
nuclear@1	1272 const int head1_4b[] = {0x4f,0x67,0x67,0x53,0,0x02,
nuclear@1	1273 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1274 0x01,0x02,0x03,0x04,0,0,0,0,
nuclear@1	1275 0xff,0x7b,0x23,0x17,
nuclear@1	1276 1,
nuclear@1	1277 0};
nuclear@1	1278
nuclear@1	1279 const int head2_4b[] = {0x4f,0x67,0x67,0x53,0,0x00,
nuclear@1	1280 0x07,0x10,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1281 0x01,0x02,0x03,0x04,1,0,0,0,
nuclear@1	1282 0xce,0x8f,0x17,0x1a,
nuclear@1	1283 23,
nuclear@1	1284 255,255,255,255,255,255,255,255,
nuclear@1	1285 255,255,255,255,255,255,255,255,255,10,255,4,255,0,0};
nuclear@1	1286
nuclear@1	1287
nuclear@1	1288 const int head3_4b[] = {0x4f,0x67,0x67,0x53,0,0x04,
nuclear@1	1289 0x07,0x14,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1290 0x01,0x02,0x03,0x04,2,0,0,0,
nuclear@1	1291 0x9b,0xb2,0x50,0xa1,
nuclear@1	1292 1,
nuclear@1	1293 0};
nuclear@1	1294
nuclear@1	1295 /* page with the 255 segment limit */
nuclear@1	1296 const int head1_5[] = {0x4f,0x67,0x67,0x53,0,0x02,
nuclear@1	1297 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1298 0x01,0x02,0x03,0x04,0,0,0,0,
nuclear@1	1299 0xff,0x7b,0x23,0x17,
nuclear@1	1300 1,
nuclear@1	1301 0};
nuclear@1	1302
nuclear@1	1303 const int head2_5[] = {0x4f,0x67,0x67,0x53,0,0x00,
nuclear@1	1304 0x07,0xfc,0x03,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1305 0x01,0x02,0x03,0x04,1,0,0,0,
nuclear@1	1306 0xed,0x2a,0x2e,0xa7,
nuclear@1	1307 255,
nuclear@1	1308 10,10,10,10,10,10,10,10,
nuclear@1	1309 10,10,10,10,10,10,10,10,
nuclear@1	1310 10,10,10,10,10,10,10,10,
nuclear@1	1311 10,10,10,10,10,10,10,10,
nuclear@1	1312 10,10,10,10,10,10,10,10,
nuclear@1	1313 10,10,10,10,10,10,10,10,
nuclear@1	1314 10,10,10,10,10,10,10,10,
nuclear@1	1315 10,10,10,10,10,10,10,10,
nuclear@1	1316 10,10,10,10,10,10,10,10,
nuclear@1	1317 10,10,10,10,10,10,10,10,
nuclear@1	1318 10,10,10,10,10,10,10,10,
nuclear@1	1319 10,10,10,10,10,10,10,10,
nuclear@1	1320 10,10,10,10,10,10,10,10,
nuclear@1	1321 10,10,10,10,10,10,10,10,
nuclear@1	1322 10,10,10,10,10,10,10,10,
nuclear@1	1323 10,10,10,10,10,10,10,10,
nuclear@1	1324 10,10,10,10,10,10,10,10,
nuclear@1	1325 10,10,10,10,10,10,10,10,
nuclear@1	1326 10,10,10,10,10,10,10,10,
nuclear@1	1327 10,10,10,10,10,10,10,10,
nuclear@1	1328 10,10,10,10,10,10,10,10,
nuclear@1	1329 10,10,10,10,10,10,10,10,
nuclear@1	1330 10,10,10,10,10,10,10,10,
nuclear@1	1331 10,10,10,10,10,10,10,10,
nuclear@1	1332 10,10,10,10,10,10,10,10,
nuclear@1	1333 10,10,10,10,10,10,10,10,
nuclear@1	1334 10,10,10,10,10,10,10,10,
nuclear@1	1335 10,10,10,10,10,10,10,10,
nuclear@1	1336 10,10,10,10,10,10,10,10,
nuclear@1	1337 10,10,10,10,10,10,10,10,
nuclear@1	1338 10,10,10,10,10,10,10,10,
nuclear@1	1339 10,10,10,10,10,10,10};
nuclear@1	1340
nuclear@1	1341 const int head3_5[] = {0x4f,0x67,0x67,0x53,0,0x04,
nuclear@1	1342 0x07,0x00,0x04,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1343 0x01,0x02,0x03,0x04,2,0,0,0,
nuclear@1	1344 0x6c,0x3b,0x82,0x3d,
nuclear@1	1345 1,
nuclear@1	1346 50};
nuclear@1	1347
nuclear@1	1348
nuclear@1	1349 /* packet that overspans over an entire page */
nuclear@1	1350 const int head1_6[] = {0x4f,0x67,0x67,0x53,0,0x02,
nuclear@1	1351 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1352 0x01,0x02,0x03,0x04,0,0,0,0,
nuclear@1	1353 0xff,0x7b,0x23,0x17,
nuclear@1	1354 1,
nuclear@1	1355 0};
nuclear@1	1356
nuclear@1	1357 const int head2_6[] = {0x4f,0x67,0x67,0x53,0,0x00,
nuclear@1	1358 0x07,0x04,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1359 0x01,0x02,0x03,0x04,1,0,0,0,
nuclear@1	1360 0x68,0x22,0x7c,0x3d,
nuclear@1	1361 255,
nuclear@1	1362 100,
nuclear@1	1363 255,255,255,255,255,255,255,255,
nuclear@1	1364 255,255,255,255,255,255,255,255,
nuclear@1	1365 255,255,255,255,255,255,255,255,
nuclear@1	1366 255,255,255,255,255,255,255,255,
nuclear@1	1367 255,255,255,255,255,255,255,255,
nuclear@1	1368 255,255,255,255,255,255,255,255,
nuclear@1	1369 255,255,255,255,255,255,255,255,
nuclear@1	1370 255,255,255,255,255,255,255,255,
nuclear@1	1371 255,255,255,255,255,255,255,255,
nuclear@1	1372 255,255,255,255,255,255,255,255,
nuclear@1	1373 255,255,255,255,255,255,255,255,
nuclear@1	1374 255,255,255,255,255,255,255,255,
nuclear@1	1375 255,255,255,255,255,255,255,255,
nuclear@1	1376 255,255,255,255,255,255,255,255,
nuclear@1	1377 255,255,255,255,255,255,255,255,
nuclear@1	1378 255,255,255,255,255,255,255,255,
nuclear@1	1379 255,255,255,255,255,255,255,255,
nuclear@1	1380 255,255,255,255,255,255,255,255,
nuclear@1	1381 255,255,255,255,255,255,255,255,
nuclear@1	1382 255,255,255,255,255,255,255,255,
nuclear@1	1383 255,255,255,255,255,255,255,255,
nuclear@1	1384 255,255,255,255,255,255,255,255,
nuclear@1	1385 255,255,255,255,255,255,255,255,
nuclear@1	1386 255,255,255,255,255,255,255,255,
nuclear@1	1387 255,255,255,255,255,255,255,255,
nuclear@1	1388 255,255,255,255,255,255,255,255,
nuclear@1	1389 255,255,255,255,255,255,255,255,
nuclear@1	1390 255,255,255,255,255,255,255,255,
nuclear@1	1391 255,255,255,255,255,255,255,255,
nuclear@1	1392 255,255,255,255,255,255,255,255,
nuclear@1	1393 255,255,255,255,255,255,255,255,
nuclear@1	1394 255,255,255,255,255,255};
nuclear@1	1395
nuclear@1	1396 const int head3_6[] = {0x4f,0x67,0x67,0x53,0,0x01,
nuclear@1	1397 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
nuclear@1	1398 0x01,0x02,0x03,0x04,2,0,0,0,
nuclear@1	1399 0xf4,0x87,0xba,0xf3,
nuclear@1	1400 255,
nuclear@1	1401 255,255,255,255,255,255,255,255,
nuclear@1	1402 255,255,255,255,255,255,255,255,
nuclear@1	1403 255,255,255,255,255,255,255,255,
nuclear@1	1404 255,255,255,255,255,255,255,255,
nuclear@1	1405 255,255,255,255,255,255,255,255,
nuclear@1	1406 255,255,255,255,255,255,255,255,
nuclear@1	1407 255,255,255,255,255,255,255,255,
nuclear@1	1408 255,255,255,255,255,255,255,255,
nuclear@1	1409 255,255,255,255,255,255,255,255,
nuclear@1	1410 255,255,255,255,255,255,255,255,
nuclear@1	1411 255,255,255,255,255,255,255,255,
nuclear@1	1412 255,255,255,255,255,255,255,255,
nuclear@1	1413 255,255,255,255,255,255,255,255,
nuclear@1	1414 255,255,255,255,255,255,255,255,
nuclear@1	1415 255,255,255,255,255,255,255,255,
nuclear@1	1416 255,255,255,255,255,255,255,255,
nuclear@1	1417 255,255,255,255,255,255,255,255,
nuclear@1	1418 255,255,255,255,255,255,255,255,
nuclear@1	1419 255,255,255,255,255,255,255,255,
nuclear@1	1420 255,255,255,255,255,255,255,255,
nuclear@1	1421 255,255,255,255,255,255,255,255,
nuclear@1	1422 255,255,255,255,255,255,255,255,
nuclear@1	1423 255,255,255,255,255,255,255,255,
nuclear@1	1424 255,255,255,255,255,255,255,255,
nuclear@1	1425 255,255,255,255,255,255,255,255,
nuclear@1	1426 255,255,255,255,255,255,255,255,
nuclear@1	1427 255,255,255,255,255,255,255,255,
nuclear@1	1428 255,255,255,255,255,255,255,255,
nuclear@1	1429 255,255,255,255,255,255,255,255,
nuclear@1	1430 255,255,255,255,255,255,255,255,
nuclear@1	1431 255,255,255,255,255,255,255,255,
nuclear@1	1432 255,255,255,255,255,255,255};
nuclear@1	1433
nuclear@1	1434 const int head4_6[] = {0x4f,0x67,0x67,0x53,0,0x05,
nuclear@1	1435 0x07,0x10,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1436 0x01,0x02,0x03,0x04,3,0,0,0,
nuclear@1	1437 0xf7,0x2f,0x6c,0x60,
nuclear@1	1438 5,
nuclear@1	1439 254,255,4,255,0};
nuclear@1	1440
nuclear@1	1441 /* packet that overspans over an entire page */
nuclear@1	1442 const int head1_7[] = {0x4f,0x67,0x67,0x53,0,0x02,
nuclear@1	1443 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1444 0x01,0x02,0x03,0x04,0,0,0,0,
nuclear@1	1445 0xff,0x7b,0x23,0x17,
nuclear@1	1446 1,
nuclear@1	1447 0};
nuclear@1	1448
nuclear@1	1449 const int head2_7[] = {0x4f,0x67,0x67,0x53,0,0x00,
nuclear@1	1450 0x07,0x04,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1451 0x01,0x02,0x03,0x04,1,0,0,0,
nuclear@1	1452 0x68,0x22,0x7c,0x3d,
nuclear@1	1453 255,
nuclear@1	1454 100,
nuclear@1	1455 255,255,255,255,255,255,255,255,
nuclear@1	1456 255,255,255,255,255,255,255,255,
nuclear@1	1457 255,255,255,255,255,255,255,255,
nuclear@1	1458 255,255,255,255,255,255,255,255,
nuclear@1	1459 255,255,255,255,255,255,255,255,
nuclear@1	1460 255,255,255,255,255,255,255,255,
nuclear@1	1461 255,255,255,255,255,255,255,255,
nuclear@1	1462 255,255,255,255,255,255,255,255,
nuclear@1	1463 255,255,255,255,255,255,255,255,
nuclear@1	1464 255,255,255,255,255,255,255,255,
nuclear@1	1465 255,255,255,255,255,255,255,255,
nuclear@1	1466 255,255,255,255,255,255,255,255,
nuclear@1	1467 255,255,255,255,255,255,255,255,
nuclear@1	1468 255,255,255,255,255,255,255,255,
nuclear@1	1469 255,255,255,255,255,255,255,255,
nuclear@1	1470 255,255,255,255,255,255,255,255,
nuclear@1	1471 255,255,255,255,255,255,255,255,
nuclear@1	1472 255,255,255,255,255,255,255,255,
nuclear@1	1473 255,255,255,255,255,255,255,255,
nuclear@1	1474 255,255,255,255,255,255,255,255,
nuclear@1	1475 255,255,255,255,255,255,255,255,
nuclear@1	1476 255,255,255,255,255,255,255,255,
nuclear@1	1477 255,255,255,255,255,255,255,255,
nuclear@1	1478 255,255,255,255,255,255,255,255,
nuclear@1	1479 255,255,255,255,255,255,255,255,
nuclear@1	1480 255,255,255,255,255,255,255,255,
nuclear@1	1481 255,255,255,255,255,255,255,255,
nuclear@1	1482 255,255,255,255,255,255,255,255,
nuclear@1	1483 255,255,255,255,255,255,255,255,
nuclear@1	1484 255,255,255,255,255,255,255,255,
nuclear@1	1485 255,255,255,255,255,255,255,255,
nuclear@1	1486 255,255,255,255,255,255};
nuclear@1	1487
nuclear@1	1488 const int head3_7[] = {0x4f,0x67,0x67,0x53,0,0x05,
nuclear@1	1489 0x07,0x08,0x00,0x00,0x00,0x00,0x00,0x00,
nuclear@1	1490 0x01,0x02,0x03,0x04,2,0,0,0,
nuclear@1	1491 0xd4,0xe0,0x60,0xe5,
nuclear@1	1492 1,
nuclear@1	1493 0};
nuclear@1	1494
nuclear@1	1495 void test_pack(const int pl, const int *headers, int byteskip,
nuclear@1	1496 int pageskip, int packetskip){
nuclear@1	1497 unsigned char data=_ogg_malloc(10241024); /* for scripted test cases only */
nuclear@1	1498 long inptr=0;
nuclear@1	1499 long outptr=0;
nuclear@1	1500 long deptr=0;
nuclear@1	1501 long depacket=0;
nuclear@1	1502 long granule_pos=7,pageno=0;
nuclear@1	1503 int i,j,packets,pageout=pageskip;
nuclear@1	1504 int eosflag=0;
nuclear@1	1505 int bosflag=0;
nuclear@1	1506
nuclear@1	1507 int byteskipcount=0;
nuclear@1	1508
nuclear@1	1509 ogg_stream_reset(&os_en);
nuclear@1	1510 ogg_stream_reset(&os_de);
nuclear@1	1511 ogg_sync_reset(&oy);
nuclear@1	1512
nuclear@1	1513 for(packets=0;packets<packetskip;packets++)
nuclear@1	1514 depacket+=pl[packets];
nuclear@1	1515
nuclear@1	1516 for(packets=0;;packets++)if(pl[packets]==-1)break;
nuclear@1	1517
nuclear@1	1518 for(i=0;i<packets;i++){
nuclear@1	1519 /* construct a test packet */
nuclear@1	1520 ogg_packet op;
nuclear@1	1521 int len=pl[i];
nuclear@1	1522
nuclear@1	1523 op.packet=data+inptr;
nuclear@1	1524 op.bytes=len;
nuclear@1	1525 op.e_o_s=(pl[i+1]<0?1:0);
nuclear@1	1526 op.granulepos=granule_pos;
nuclear@1	1527
nuclear@1	1528 granule_pos+=1024;
nuclear@1	1529
nuclear@1	1530 for(j=0;j<len;j++)data[inptr++]=i+j;
nuclear@1	1531
nuclear@1	1532 /* submit the test packet */
nuclear@1	1533 ogg_stream_packetin(&os_en,&op);
nuclear@1	1534
nuclear@1	1535 /* retrieve any finished pages */
nuclear@1	1536 {
nuclear@1	1537 ogg_page og;
nuclear@1	1538
nuclear@1	1539 while(ogg_stream_pageout(&os_en,&og)){
nuclear@1	1540 /* We have a page. Check it carefully */
nuclear@1	1541
nuclear@1	1542 fprintf(stderr,"%ld, ",pageno);
nuclear@1	1543
nuclear@1	1544 if(headers[pageno]==NULL){
nuclear@1	1545 fprintf(stderr,"coded too many pages!\n");
nuclear@1	1546 exit(1);
nuclear@1	1547 }
nuclear@1	1548
nuclear@1	1549 check_page(data+outptr,headers[pageno],&og);
nuclear@1	1550
nuclear@1	1551 outptr+=og.body_len;
nuclear@1	1552 pageno++;
nuclear@1	1553 if(pageskip){
nuclear@1	1554 bosflag=1;
nuclear@1	1555 pageskip--;
nuclear@1	1556 deptr+=og.body_len;
nuclear@1	1557 }
nuclear@1	1558
nuclear@1	1559 /* have a complete page; submit it to sync/decode */
nuclear@1	1560
nuclear@1	1561 {
nuclear@1	1562 ogg_page og_de;
nuclear@1	1563 ogg_packet op_de,op_de2;
nuclear@1	1564 char *buf=ogg_sync_buffer(&oy,og.header_len+og.body_len);
nuclear@1	1565 char *next=buf;
nuclear@1	1566 byteskipcount+=og.header_len;
nuclear@1	1567 if(byteskipcount>byteskip){
nuclear@1	1568 memcpy(next,og.header,byteskipcount-byteskip);
nuclear@1	1569 next+=byteskipcount-byteskip;
nuclear@1	1570 byteskipcount=byteskip;
nuclear@1	1571 }
nuclear@1	1572
nuclear@1	1573 byteskipcount+=og.body_len;
nuclear@1	1574 if(byteskipcount>byteskip){
nuclear@1	1575 memcpy(next,og.body,byteskipcount-byteskip);
nuclear@1	1576 next+=byteskipcount-byteskip;
nuclear@1	1577 byteskipcount=byteskip;
nuclear@1	1578 }
nuclear@1	1579
nuclear@1	1580 ogg_sync_wrote(&oy,next-buf);
nuclear@1	1581
nuclear@1	1582 while(1){
nuclear@1	1583 int ret=ogg_sync_pageout(&oy,&og_de);
nuclear@1	1584 if(ret==0)break;
nuclear@1	1585 if(ret<0)continue;
nuclear@1	1586 /* got a page. Happy happy. Verify that it's good. */
nuclear@1	1587
nuclear@1	1588 fprintf(stderr,"(%d), ",pageout);
nuclear@1	1589
nuclear@1	1590 check_page(data+deptr,headers[pageout],&og_de);
nuclear@1	1591 deptr+=og_de.body_len;
nuclear@1	1592 pageout++;
nuclear@1	1593
nuclear@1	1594 /* submit it to deconstitution */
nuclear@1	1595 ogg_stream_pagein(&os_de,&og_de);
nuclear@1	1596
nuclear@1	1597 /* packets out? */
nuclear@1	1598 while(ogg_stream_packetpeek(&os_de,&op_de2)>0){
nuclear@1	1599 ogg_stream_packetpeek(&os_de,NULL);
nuclear@1	1600 ogg_stream_packetout(&os_de,&op_de); /* just catching them all */
nuclear@1	1601
nuclear@1	1602 /* verify peek and out match */
nuclear@1	1603 if(memcmp(&op_de,&op_de2,sizeof(op_de))){
nuclear@1	1604 fprintf(stderr,"packetout != packetpeek! pos=%ld\n",
nuclear@1	1605 depacket);
nuclear@1	1606 exit(1);
nuclear@1	1607 }
nuclear@1	1608
nuclear@1	1609 /* verify the packet! */
nuclear@1	1610 /* check data */
nuclear@1	1611 if(memcmp(data+depacket,op_de.packet,op_de.bytes)){
nuclear@1	1612 fprintf(stderr,"packet data mismatch in decode! pos=%ld\n",
nuclear@1	1613 depacket);
nuclear@1	1614 exit(1);
nuclear@1	1615 }
nuclear@1	1616 /* check bos flag */
nuclear@1	1617 if(bosflag==0 && op_de.b_o_s==0){
nuclear@1	1618 fprintf(stderr,"b_o_s flag not set on packet!\n");
nuclear@1	1619 exit(1);
nuclear@1	1620 }
nuclear@1	1621 if(bosflag && op_de.b_o_s){
nuclear@1	1622 fprintf(stderr,"b_o_s flag incorrectly set on packet!\n");
nuclear@1	1623 exit(1);
nuclear@1	1624 }
nuclear@1	1625 bosflag=1;
nuclear@1	1626 depacket+=op_de.bytes;
nuclear@1	1627
nuclear@1	1628 /* check eos flag */
nuclear@1	1629 if(eosflag){
nuclear@1	1630 fprintf(stderr,"Multiple decoded packets with eos flag!\n");
nuclear@1	1631 exit(1);
nuclear@1	1632 }
nuclear@1	1633
nuclear@1	1634 if(op_de.e_o_s)eosflag=1;
nuclear@1	1635
nuclear@1	1636 /* check granulepos flag */
nuclear@1	1637 if(op_de.granulepos!=-1){
nuclear@1	1638 fprintf(stderr," granule:%ld ",(long)op_de.granulepos);
nuclear@1	1639 }
nuclear@1	1640 }
nuclear@1	1641 }
nuclear@1	1642 }
nuclear@1	1643 }
nuclear@1	1644 }
nuclear@1	1645 }
nuclear@1	1646 _ogg_free(data);
nuclear@1	1647 if(headers[pageno]!=NULL){
nuclear@1	1648 fprintf(stderr,"did not write last page!\n");
nuclear@1	1649 exit(1);
nuclear@1	1650 }
nuclear@1	1651 if(headers[pageout]!=NULL){
nuclear@1	1652 fprintf(stderr,"did not decode last page!\n");
nuclear@1	1653 exit(1);
nuclear@1	1654 }
nuclear@1	1655 if(inptr!=outptr){
nuclear@1	1656 fprintf(stderr,"encoded page data incomplete!\n");
nuclear@1	1657 exit(1);
nuclear@1	1658 }
nuclear@1	1659 if(inptr!=deptr){
nuclear@1	1660 fprintf(stderr,"decoded page data incomplete!\n");
nuclear@1	1661 exit(1);
nuclear@1	1662 }
nuclear@1	1663 if(inptr!=depacket){
nuclear@1	1664 fprintf(stderr,"decoded packet data incomplete!\n");
nuclear@1	1665 exit(1);
nuclear@1	1666 }
nuclear@1	1667 if(!eosflag){
nuclear@1	1668 fprintf(stderr,"Never got a packet with EOS set!\n");
nuclear@1	1669 exit(1);
nuclear@1	1670 }
nuclear@1	1671 fprintf(stderr,"ok.\n");
nuclear@1	1672 }
nuclear@1	1673
nuclear@1	1674 int main(void){
nuclear@1	1675
nuclear@1	1676 ogg_stream_init(&os_en,0x04030201);
nuclear@1	1677 ogg_stream_init(&os_de,0x04030201);
nuclear@1	1678 ogg_sync_init(&oy);
nuclear@1	1679
nuclear@1	1680 /* Exercise each code path in the framing code. Also verify that
nuclear@1	1681 the checksums are working. */
nuclear@1	1682
nuclear@1	1683 {
nuclear@1	1684 /* 17 only */
nuclear@1	1685 const int packets[]={17, -1};
nuclear@1	1686 const int *headret[]={head1_0,NULL};
nuclear@1	1687
nuclear@1	1688 fprintf(stderr,"testing single page encoding... ");
nuclear@1	1689 test_pack(packets,headret,0,0,0);
nuclear@1	1690 }
nuclear@1	1691
nuclear@1	1692 {
nuclear@1	1693 /* 17, 254, 255, 256, 500, 510, 600 byte, pad */
nuclear@1	1694 const int packets[]={17, 254, 255, 256, 500, 510, 600, -1};
nuclear@1	1695 const int *headret[]={head1_1,head2_1,NULL};
nuclear@1	1696
nuclear@1	1697 fprintf(stderr,"testing basic page encoding... ");
nuclear@1	1698 test_pack(packets,headret,0,0,0);
nuclear@1	1699 }
nuclear@1	1700
nuclear@1	1701 {
nuclear@1	1702 /* nil packets; beginning,middle,end */
nuclear@1	1703 const int packets[]={0,17, 254, 255, 0, 256, 0, 500, 510, 600, 0, -1};
nuclear@1	1704 const int *headret[]={head1_2,head2_2,NULL};
nuclear@1	1705
nuclear@1	1706 fprintf(stderr,"testing basic nil packets... ");
nuclear@1	1707 test_pack(packets,headret,0,0,0);
nuclear@1	1708 }
nuclear@1	1709
nuclear@1	1710 {
nuclear@1	1711 /* large initial packet */
nuclear@1	1712 const int packets[]={4345,259,255,-1};
nuclear@1	1713 const int *headret[]={head1_3,head2_3,NULL};
nuclear@1	1714
nuclear@1	1715 fprintf(stderr,"testing initial-packet lacing > 4k... ");
nuclear@1	1716 test_pack(packets,headret,0,0,0);
nuclear@1	1717 }
nuclear@1	1718
nuclear@1	1719 {
nuclear@1	1720 /* continuing packet test; with page spill expansion, we have to
nuclear@1	1721 overflow the lacing table. */
nuclear@1	1722 const int packets[]={0,65500,259,255,-1};
nuclear@1	1723 const int *headret[]={head1_4,head2_4,head3_4,NULL};
nuclear@1	1724
nuclear@1	1725 fprintf(stderr,"testing single packet page span... ");
nuclear@1	1726 test_pack(packets,headret,0,0,0);
nuclear@1	1727 }
nuclear@1	1728
nuclear@1	1729 {
nuclear@1	1730 /* spill expand packet test */
nuclear@1	1731 const int packets[]={0,4345,259,255,0,0,-1};
nuclear@1	1732 const int *headret[]={head1_4b,head2_4b,head3_4b,NULL};
nuclear@1	1733
nuclear@1	1734 fprintf(stderr,"testing page spill expansion... ");
nuclear@1	1735 test_pack(packets,headret,0,0,0);
nuclear@1	1736 }
nuclear@1	1737
nuclear@1	1738 /* page with the 255 segment limit */
nuclear@1	1739 {
nuclear@1	1740
nuclear@1	1741 const int packets[]={0,10,10,10,10,10,10,10,10,
nuclear@1	1742 10,10,10,10,10,10,10,10,
nuclear@1	1743 10,10,10,10,10,10,10,10,
nuclear@1	1744 10,10,10,10,10,10,10,10,
nuclear@1	1745 10,10,10,10,10,10,10,10,
nuclear@1	1746 10,10,10,10,10,10,10,10,
nuclear@1	1747 10,10,10,10,10,10,10,10,
nuclear@1	1748 10,10,10,10,10,10,10,10,
nuclear@1	1749 10,10,10,10,10,10,10,10,
nuclear@1	1750 10,10,10,10,10,10,10,10,
nuclear@1	1751 10,10,10,10,10,10,10,10,
nuclear@1	1752 10,10,10,10,10,10,10,10,
nuclear@1	1753 10,10,10,10,10,10,10,10,
nuclear@1	1754 10,10,10,10,10,10,10,10,
nuclear@1	1755 10,10,10,10,10,10,10,10,
nuclear@1	1756 10,10,10,10,10,10,10,10,
nuclear@1	1757 10,10,10,10,10,10,10,10,
nuclear@1	1758 10,10,10,10,10,10,10,10,
nuclear@1	1759 10,10,10,10,10,10,10,10,
nuclear@1	1760 10,10,10,10,10,10,10,10,
nuclear@1	1761 10,10,10,10,10,10,10,10,
nuclear@1	1762 10,10,10,10,10,10,10,10,
nuclear@1	1763 10,10,10,10,10,10,10,10,
nuclear@1	1764 10,10,10,10,10,10,10,10,
nuclear@1	1765 10,10,10,10,10,10,10,10,
nuclear@1	1766 10,10,10,10,10,10,10,10,
nuclear@1	1767 10,10,10,10,10,10,10,10,
nuclear@1	1768 10,10,10,10,10,10,10,10,
nuclear@1	1769 10,10,10,10,10,10,10,10,
nuclear@1	1770 10,10,10,10,10,10,10,10,
nuclear@1	1771 10,10,10,10,10,10,10,10,
nuclear@1	1772 10,10,10,10,10,10,10,50,-1};
nuclear@1	1773 const int *headret[]={head1_5,head2_5,head3_5,NULL};
nuclear@1	1774
nuclear@1	1775 fprintf(stderr,"testing max packet segments... ");
nuclear@1	1776 test_pack(packets,headret,0,0,0);
nuclear@1	1777 }
nuclear@1	1778
nuclear@1	1779 {
nuclear@1	1780 /* packet that overspans over an entire page */
nuclear@1	1781 const int packets[]={0,100,130049,259,255,-1};
nuclear@1	1782 const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL};
nuclear@1	1783
nuclear@1	1784 fprintf(stderr,"testing very large packets... ");
nuclear@1	1785 test_pack(packets,headret,0,0,0);
nuclear@1	1786 }
nuclear@1	1787
nuclear@1	1788 {
nuclear@1	1789 /* test for the libogg 1.1.1 resync in large continuation bug
nuclear@1	1790 found by Josh Coalson) */
nuclear@1	1791 const int packets[]={0,100,130049,259,255,-1};
nuclear@1	1792 const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL};
nuclear@1	1793
nuclear@1	1794 fprintf(stderr,"testing continuation resync in very large packets... ");
nuclear@1	1795 test_pack(packets,headret,100,2,3);
nuclear@1	1796 }
nuclear@1	1797
nuclear@1	1798 {
nuclear@1	1799 /* term only page. why not? */
nuclear@1	1800 const int packets[]={0,100,64770,-1};
nuclear@1	1801 const int *headret[]={head1_7,head2_7,head3_7,NULL};
nuclear@1	1802
nuclear@1	1803 fprintf(stderr,"testing zero data page (1 nil packet)... ");
nuclear@1	1804 test_pack(packets,headret,0,0,0);
nuclear@1	1805 }
nuclear@1	1806
nuclear@1	1807
nuclear@1	1808
nuclear@1	1809 {
nuclear@1	1810 /* build a bunch of pages for testing */
nuclear@1	1811 unsigned char data=_ogg_malloc(10241024);
nuclear@1	1812 int pl[]={0, 1,1,98,4079, 1,1,2954,2057, 76,34,912,0,234,1000,1000, 1000,300,-1};
nuclear@1	1813 int inptr=0,i,j;
nuclear@1	1814 ogg_page og[5];
nuclear@1	1815
nuclear@1	1816 ogg_stream_reset(&os_en);
nuclear@1	1817
nuclear@1	1818 for(i=0;pl[i]!=-1;i++){
nuclear@1	1819 ogg_packet op;
nuclear@1	1820 int len=pl[i];
nuclear@1	1821
nuclear@1	1822 op.packet=data+inptr;
nuclear@1	1823 op.bytes=len;
nuclear@1	1824 op.e_o_s=(pl[i+1]<0?1:0);
nuclear@1	1825 op.granulepos=(i+1)*1000;
nuclear@1	1826
nuclear@1	1827 for(j=0;j<len;j++)data[inptr++]=i+j;
nuclear@1	1828 ogg_stream_packetin(&os_en,&op);
nuclear@1	1829 }
nuclear@1	1830
nuclear@1	1831 _ogg_free(data);
nuclear@1	1832
nuclear@1	1833 /* retrieve finished pages */
nuclear@1	1834 for(i=0;i<5;i++){
nuclear@1	1835 if(ogg_stream_pageout(&os_en,&og[i])==0){
nuclear@1	1836 fprintf(stderr,"Too few pages output building sync tests!\n");
nuclear@1	1837 exit(1);
nuclear@1	1838 }
nuclear@1	1839 copy_page(&og[i]);
nuclear@1	1840 }
nuclear@1	1841
nuclear@1	1842 /* Test lost pages on pagein/packetout: no rollback */
nuclear@1	1843 {
nuclear@1	1844 ogg_page temp;
nuclear@1	1845 ogg_packet test;
nuclear@1	1846
nuclear@1	1847 fprintf(stderr,"Testing loss of pages... ");
nuclear@1	1848
nuclear@1	1849 ogg_sync_reset(&oy);
nuclear@1	1850 ogg_stream_reset(&os_de);
nuclear@1	1851 for(i=0;i<5;i++){
nuclear@1	1852 memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header,
nuclear@1	1853 og[i].header_len);
nuclear@1	1854 ogg_sync_wrote(&oy,og[i].header_len);
nuclear@1	1855 memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len);
nuclear@1	1856 ogg_sync_wrote(&oy,og[i].body_len);
nuclear@1	1857 }
nuclear@1	1858
nuclear@1	1859 ogg_sync_pageout(&oy,&temp);
nuclear@1	1860 ogg_stream_pagein(&os_de,&temp);
nuclear@1	1861 ogg_sync_pageout(&oy,&temp);
nuclear@1	1862 ogg_stream_pagein(&os_de,&temp);
nuclear@1	1863 ogg_sync_pageout(&oy,&temp);
nuclear@1	1864 /* skip */
nuclear@1	1865 ogg_sync_pageout(&oy,&temp);
nuclear@1	1866 ogg_stream_pagein(&os_de,&temp);
nuclear@1	1867
nuclear@1	1868 /* do we get the expected results/packets? */
nuclear@1	1869
nuclear@1	1870 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1871 checkpacket(&test,0,0,0);
nuclear@1	1872 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1873 checkpacket(&test,1,1,-1);
nuclear@1	1874 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1875 checkpacket(&test,1,2,-1);
nuclear@1	1876 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1877 checkpacket(&test,98,3,-1);
nuclear@1	1878 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1879 checkpacket(&test,4079,4,5000);
nuclear@1	1880 if(ogg_stream_packetout(&os_de,&test)!=-1){
nuclear@1	1881 fprintf(stderr,"Error: loss of page did not return error\n");
nuclear@1	1882 exit(1);
nuclear@1	1883 }
nuclear@1	1884 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1885 checkpacket(&test,76,9,-1);
nuclear@1	1886 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1887 checkpacket(&test,34,10,-1);
nuclear@1	1888 fprintf(stderr,"ok.\n");
nuclear@1	1889 }
nuclear@1	1890
nuclear@1	1891 /* Test lost pages on pagein/packetout: rollback with continuation */
nuclear@1	1892 {
nuclear@1	1893 ogg_page temp;
nuclear@1	1894 ogg_packet test;
nuclear@1	1895
nuclear@1	1896 fprintf(stderr,"Testing loss of pages (rollback required)... ");
nuclear@1	1897
nuclear@1	1898 ogg_sync_reset(&oy);
nuclear@1	1899 ogg_stream_reset(&os_de);
nuclear@1	1900 for(i=0;i<5;i++){
nuclear@1	1901 memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header,
nuclear@1	1902 og[i].header_len);
nuclear@1	1903 ogg_sync_wrote(&oy,og[i].header_len);
nuclear@1	1904 memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len);
nuclear@1	1905 ogg_sync_wrote(&oy,og[i].body_len);
nuclear@1	1906 }
nuclear@1	1907
nuclear@1	1908 ogg_sync_pageout(&oy,&temp);
nuclear@1	1909 ogg_stream_pagein(&os_de,&temp);
nuclear@1	1910 ogg_sync_pageout(&oy,&temp);
nuclear@1	1911 ogg_stream_pagein(&os_de,&temp);
nuclear@1	1912 ogg_sync_pageout(&oy,&temp);
nuclear@1	1913 ogg_stream_pagein(&os_de,&temp);
nuclear@1	1914 ogg_sync_pageout(&oy,&temp);
nuclear@1	1915 /* skip */
nuclear@1	1916 ogg_sync_pageout(&oy,&temp);
nuclear@1	1917 ogg_stream_pagein(&os_de,&temp);
nuclear@1	1918
nuclear@1	1919 /* do we get the expected results/packets? */
nuclear@1	1920
nuclear@1	1921 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1922 checkpacket(&test,0,0,0);
nuclear@1	1923 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1924 checkpacket(&test,1,1,-1);
nuclear@1	1925 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1926 checkpacket(&test,1,2,-1);
nuclear@1	1927 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1928 checkpacket(&test,98,3,-1);
nuclear@1	1929 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1930 checkpacket(&test,4079,4,5000);
nuclear@1	1931 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1932 checkpacket(&test,1,5,-1);
nuclear@1	1933 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1934 checkpacket(&test,1,6,-1);
nuclear@1	1935 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1936 checkpacket(&test,2954,7,-1);
nuclear@1	1937 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1938 checkpacket(&test,2057,8,9000);
nuclear@1	1939 if(ogg_stream_packetout(&os_de,&test)!=-1){
nuclear@1	1940 fprintf(stderr,"Error: loss of page did not return error\n");
nuclear@1	1941 exit(1);
nuclear@1	1942 }
nuclear@1	1943 if(ogg_stream_packetout(&os_de,&test)!=1)error();
nuclear@1	1944 checkpacket(&test,300,17,18000);
nuclear@1	1945 fprintf(stderr,"ok.\n");
nuclear@1	1946 }
nuclear@1	1947
nuclear@1	1948 /* the rest only test sync */
nuclear@1	1949 {
nuclear@1	1950 ogg_page og_de;
nuclear@1	1951 /* Test fractional page inputs: incomplete capture */
nuclear@1	1952 fprintf(stderr,"Testing sync on partial inputs... ");
nuclear@1	1953 ogg_sync_reset(&oy);
nuclear@1	1954 memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
nuclear@1	1955 3);
nuclear@1	1956 ogg_sync_wrote(&oy,3);
nuclear@1	1957 if(ogg_sync_pageout(&oy,&og_de)>0)error();
nuclear@1	1958
nuclear@1	1959 /* Test fractional page inputs: incomplete fixed header */
nuclear@1	1960 memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+3,
nuclear@1	1961 20);
nuclear@1	1962 ogg_sync_wrote(&oy,20);
nuclear@1	1963 if(ogg_sync_pageout(&oy,&og_de)>0)error();
nuclear@1	1964
nuclear@1	1965 /* Test fractional page inputs: incomplete header */
nuclear@1	1966 memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+23,
nuclear@1	1967 5);
nuclear@1	1968 ogg_sync_wrote(&oy,5);
nuclear@1	1969 if(ogg_sync_pageout(&oy,&og_de)>0)error();
nuclear@1	1970
nuclear@1	1971 /* Test fractional page inputs: incomplete body */
nuclear@1	1972
nuclear@1	1973 memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+28,
nuclear@1	1974 og[1].header_len-28);
nuclear@1	1975 ogg_sync_wrote(&oy,og[1].header_len-28);
nuclear@1	1976 if(ogg_sync_pageout(&oy,&og_de)>0)error();
nuclear@1	1977
nuclear@1	1978 memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,1000);
nuclear@1	1979 ogg_sync_wrote(&oy,1000);
nuclear@1	1980 if(ogg_sync_pageout(&oy,&og_de)>0)error();
nuclear@1	1981
nuclear@1	1982 memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body+1000,
nuclear@1	1983 og[1].body_len-1000);
nuclear@1	1984 ogg_sync_wrote(&oy,og[1].body_len-1000);
nuclear@1	1985 if(ogg_sync_pageout(&oy,&og_de)<=0)error();
nuclear@1	1986
nuclear@1	1987 fprintf(stderr,"ok.\n");
nuclear@1	1988 }
nuclear@1	1989
nuclear@1	1990 /* Test fractional page inputs: page + incomplete capture */
nuclear@1	1991 {
nuclear@1	1992 ogg_page og_de;
nuclear@1	1993 fprintf(stderr,"Testing sync on 1+partial inputs... ");
nuclear@1	1994 ogg_sync_reset(&oy);
nuclear@1	1995
nuclear@1	1996 memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
nuclear@1	1997 og[1].header_len);
nuclear@1	1998 ogg_sync_wrote(&oy,og[1].header_len);
nuclear@1	1999
nuclear@1	2000 memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
nuclear@1	2001 og[1].body_len);
nuclear@1	2002 ogg_sync_wrote(&oy,og[1].body_len);
nuclear@1	2003
nuclear@1	2004 memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
nuclear@1	2005 20);
nuclear@1	2006 ogg_sync_wrote(&oy,20);
nuclear@1	2007 if(ogg_sync_pageout(&oy,&og_de)<=0)error();
nuclear@1	2008 if(ogg_sync_pageout(&oy,&og_de)>0)error();
nuclear@1	2009
nuclear@1	2010 memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+20,
nuclear@1	2011 og[1].header_len-20);
nuclear@1	2012 ogg_sync_wrote(&oy,og[1].header_len-20);
nuclear@1	2013 memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
nuclear@1	2014 og[1].body_len);
nuclear@1	2015 ogg_sync_wrote(&oy,og[1].body_len);
nuclear@1	2016 if(ogg_sync_pageout(&oy,&og_de)<=0)error();
nuclear@1	2017
nuclear@1	2018 fprintf(stderr,"ok.\n");
nuclear@1	2019 }
nuclear@1	2020
nuclear@1	2021 /* Test recapture: garbage + page */
nuclear@1	2022 {
nuclear@1	2023 ogg_page og_de;
nuclear@1	2024 fprintf(stderr,"Testing search for capture... ");
nuclear@1	2025 ogg_sync_reset(&oy);
nuclear@1	2026
nuclear@1	2027 /* 'garbage' */
nuclear@1	2028 memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
nuclear@1	2029 og[1].body_len);
nuclear@1	2030 ogg_sync_wrote(&oy,og[1].body_len);
nuclear@1	2031
nuclear@1	2032 memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
nuclear@1	2033 og[1].header_len);
nuclear@1	2034 ogg_sync_wrote(&oy,og[1].header_len);
nuclear@1	2035
nuclear@1	2036 memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
nuclear@1	2037 og[1].body_len);
nuclear@1	2038 ogg_sync_wrote(&oy,og[1].body_len);
nuclear@1	2039
nuclear@1	2040 memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header,
nuclear@1	2041 20);
nuclear@1	2042 ogg_sync_wrote(&oy,20);
nuclear@1	2043 if(ogg_sync_pageout(&oy,&og_de)>0)error();
nuclear@1	2044 if(ogg_sync_pageout(&oy,&og_de)<=0)error();
nuclear@1	2045 if(ogg_sync_pageout(&oy,&og_de)>0)error();
nuclear@1	2046
nuclear@1	2047 memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header+20,
nuclear@1	2048 og[2].header_len-20);
nuclear@1	2049 ogg_sync_wrote(&oy,og[2].header_len-20);
nuclear@1	2050 memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body,
nuclear@1	2051 og[2].body_len);
nuclear@1	2052 ogg_sync_wrote(&oy,og[2].body_len);
nuclear@1	2053 if(ogg_sync_pageout(&oy,&og_de)<=0)error();
nuclear@1	2054
nuclear@1	2055 fprintf(stderr,"ok.\n");
nuclear@1	2056 }
nuclear@1	2057
nuclear@1	2058 /* Test recapture: page + garbage + page */
nuclear@1	2059 {
nuclear@1	2060 ogg_page og_de;
nuclear@1	2061 fprintf(stderr,"Testing recapture... ");
nuclear@1	2062 ogg_sync_reset(&oy);
nuclear@1	2063
nuclear@1	2064 memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
nuclear@1	2065 og[1].header_len);
nuclear@1	2066 ogg_sync_wrote(&oy,og[1].header_len);
nuclear@1	2067
nuclear@1	2068 memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
nuclear@1	2069 og[1].body_len);
nuclear@1	2070 ogg_sync_wrote(&oy,og[1].body_len);
nuclear@1	2071
nuclear@1	2072 memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header,
nuclear@1	2073 og[2].header_len);
nuclear@1	2074 ogg_sync_wrote(&oy,og[2].header_len);
nuclear@1	2075
nuclear@1	2076 memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header,
nuclear@1	2077 og[2].header_len);
nuclear@1	2078 ogg_sync_wrote(&oy,og[2].header_len);
nuclear@1	2079
nuclear@1	2080 if(ogg_sync_pageout(&oy,&og_de)<=0)error();
nuclear@1	2081
nuclear@1	2082 memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body,
nuclear@1	2083 og[2].body_len-5);
nuclear@1	2084 ogg_sync_wrote(&oy,og[2].body_len-5);
nuclear@1	2085
nuclear@1	2086 memcpy(ogg_sync_buffer(&oy,og[3].header_len),og[3].header,
nuclear@1	2087 og[3].header_len);
nuclear@1	2088 ogg_sync_wrote(&oy,og[3].header_len);
nuclear@1	2089
nuclear@1	2090 memcpy(ogg_sync_buffer(&oy,og[3].body_len),og[3].body,
nuclear@1	2091 og[3].body_len);
nuclear@1	2092 ogg_sync_wrote(&oy,og[3].body_len);
nuclear@1	2093
nuclear@1	2094 if(ogg_sync_pageout(&oy,&og_de)>0)error();
nuclear@1	2095 if(ogg_sync_pageout(&oy,&og_de)<=0)error();
nuclear@1	2096
nuclear@1	2097 fprintf(stderr,"ok.\n");
nuclear@1	2098 }
nuclear@1	2099
nuclear@1	2100 /* Free page data that was previously copied */
nuclear@1	2101 {
nuclear@1	2102 for(i=0;i<5;i++){
nuclear@1	2103 free_page(&og[i]);
nuclear@1	2104 }
nuclear@1	2105 }
nuclear@1	2106 }
nuclear@1	2107
nuclear@1	2108 return(0);
nuclear@1	2109 }
nuclear@1	2110
nuclear@1	2111 #endif