Lucas Eckels | f869a6f | 2012-08-06 15:15:24 -0700 | [diff] [blame] | 1 | /******************************************************************** |
| 2 | * * |
| 3 | * THIS FILE IS PART OF THE Ogg CONTAINER SOURCE CODE. * |
| 4 | * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
| 5 | * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
| 6 | * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
| 7 | * * |
| 8 | * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2010 * |
| 9 | * by the Xiph.Org Foundation http://www.xiph.org/ * |
| 10 | * * |
| 11 | ******************************************************************** |
| 12 | |
| 13 | function: code raw packets into framed OggSquish stream and |
| 14 | decode Ogg streams back into raw packets |
| 15 | last mod: $Id: framing.c 17039 2010-03-26 00:34:54Z xiphmont $ |
| 16 | |
| 17 | note: The CRC code is directly derived from public domain code by |
| 18 | Ross Williams (ross@guest.adelaide.edu.au). See docs/framing.html |
| 19 | for details. |
| 20 | |
| 21 | ********************************************************************/ |
| 22 | |
| 23 | #include <stdlib.h> |
| 24 | #include <string.h> |
| 25 | #include <ogg/ogg.h> |
| 26 | |
| 27 | /* A complete description of Ogg framing exists in docs/framing.html */ |
| 28 | |
| 29 | int ogg_page_version(const ogg_page *og){ |
| 30 | return((int)(og->header[4])); |
| 31 | } |
| 32 | |
| 33 | int ogg_page_continued(const ogg_page *og){ |
| 34 | return((int)(og->header[5]&0x01)); |
| 35 | } |
| 36 | |
| 37 | int ogg_page_bos(const ogg_page *og){ |
| 38 | return((int)(og->header[5]&0x02)); |
| 39 | } |
| 40 | |
| 41 | int ogg_page_eos(const ogg_page *og){ |
| 42 | return((int)(og->header[5]&0x04)); |
| 43 | } |
| 44 | |
| 45 | ogg_int64_t ogg_page_granulepos(const ogg_page *og){ |
| 46 | unsigned char *page=og->header; |
| 47 | ogg_int64_t granulepos=page[13]&(0xff); |
| 48 | granulepos= (granulepos<<8)|(page[12]&0xff); |
| 49 | granulepos= (granulepos<<8)|(page[11]&0xff); |
| 50 | granulepos= (granulepos<<8)|(page[10]&0xff); |
| 51 | granulepos= (granulepos<<8)|(page[9]&0xff); |
| 52 | granulepos= (granulepos<<8)|(page[8]&0xff); |
| 53 | granulepos= (granulepos<<8)|(page[7]&0xff); |
| 54 | granulepos= (granulepos<<8)|(page[6]&0xff); |
| 55 | return(granulepos); |
| 56 | } |
| 57 | |
| 58 | int ogg_page_serialno(const ogg_page *og){ |
| 59 | return(og->header[14] | |
| 60 | (og->header[15]<<8) | |
| 61 | (og->header[16]<<16) | |
| 62 | (og->header[17]<<24)); |
| 63 | } |
| 64 | |
| 65 | long ogg_page_pageno(const ogg_page *og){ |
| 66 | return(og->header[18] | |
| 67 | (og->header[19]<<8) | |
| 68 | (og->header[20]<<16) | |
| 69 | (og->header[21]<<24)); |
| 70 | } |
| 71 | |
| 72 | |
| 73 | |
| 74 | /* returns the number of packets that are completed on this page (if |
| 75 | the leading packet is begun on a previous page, but ends on this |
| 76 | page, it's counted */ |
| 77 | |
| 78 | /* NOTE: |
| 79 | If a page consists of a packet begun on a previous page, and a new |
| 80 | packet begun (but not completed) on this page, the return will be: |
| 81 | ogg_page_packets(page) ==1, |
| 82 | ogg_page_continued(page) !=0 |
| 83 | |
| 84 | If a page happens to be a single packet that was begun on a |
| 85 | previous page, and spans to the next page (in the case of a three or |
| 86 | more page packet), the return will be: |
| 87 | ogg_page_packets(page) ==0, |
| 88 | ogg_page_continued(page) !=0 |
| 89 | */ |
| 90 | |
| 91 | int ogg_page_packets(const ogg_page *og){ |
| 92 | int i,n=og->header[26],count=0; |
| 93 | for(i=0;i<n;i++) |
| 94 | if(og->header[27+i]<255)count++; |
| 95 | return(count); |
| 96 | } |
| 97 | |
| 98 | |
| 99 | #if 0 |
| 100 | /* helper to initialize lookup for direct-table CRC (illustrative; we |
| 101 | use the static init below) */ |
| 102 | |
| 103 | static ogg_uint32_t _ogg_crc_entry(unsigned long index){ |
| 104 | int i; |
| 105 | unsigned long r; |
| 106 | |
| 107 | r = index << 24; |
| 108 | for (i=0; i<8; i++) |
| 109 | if (r & 0x80000000UL) |
| 110 | r = (r << 1) ^ 0x04c11db7; /* The same as the ethernet generator |
| 111 | polynomial, although we use an |
| 112 | unreflected alg and an init/final |
| 113 | of 0, not 0xffffffff */ |
| 114 | else |
| 115 | r<<=1; |
| 116 | return (r & 0xffffffffUL); |
| 117 | } |
| 118 | #endif |
| 119 | |
| 120 | static const ogg_uint32_t crc_lookup[256]={ |
| 121 | 0x00000000,0x04c11db7,0x09823b6e,0x0d4326d9, |
| 122 | 0x130476dc,0x17c56b6b,0x1a864db2,0x1e475005, |
| 123 | 0x2608edb8,0x22c9f00f,0x2f8ad6d6,0x2b4bcb61, |
| 124 | 0x350c9b64,0x31cd86d3,0x3c8ea00a,0x384fbdbd, |
| 125 | 0x4c11db70,0x48d0c6c7,0x4593e01e,0x4152fda9, |
| 126 | 0x5f15adac,0x5bd4b01b,0x569796c2,0x52568b75, |
| 127 | 0x6a1936c8,0x6ed82b7f,0x639b0da6,0x675a1011, |
| 128 | 0x791d4014,0x7ddc5da3,0x709f7b7a,0x745e66cd, |
| 129 | 0x9823b6e0,0x9ce2ab57,0x91a18d8e,0x95609039, |
| 130 | 0x8b27c03c,0x8fe6dd8b,0x82a5fb52,0x8664e6e5, |
| 131 | 0xbe2b5b58,0xbaea46ef,0xb7a96036,0xb3687d81, |
| 132 | 0xad2f2d84,0xa9ee3033,0xa4ad16ea,0xa06c0b5d, |
| 133 | 0xd4326d90,0xd0f37027,0xddb056fe,0xd9714b49, |
| 134 | 0xc7361b4c,0xc3f706fb,0xceb42022,0xca753d95, |
| 135 | 0xf23a8028,0xf6fb9d9f,0xfbb8bb46,0xff79a6f1, |
| 136 | 0xe13ef6f4,0xe5ffeb43,0xe8bccd9a,0xec7dd02d, |
| 137 | 0x34867077,0x30476dc0,0x3d044b19,0x39c556ae, |
| 138 | 0x278206ab,0x23431b1c,0x2e003dc5,0x2ac12072, |
| 139 | 0x128e9dcf,0x164f8078,0x1b0ca6a1,0x1fcdbb16, |
| 140 | 0x018aeb13,0x054bf6a4,0x0808d07d,0x0cc9cdca, |
| 141 | 0x7897ab07,0x7c56b6b0,0x71159069,0x75d48dde, |
| 142 | 0x6b93dddb,0x6f52c06c,0x6211e6b5,0x66d0fb02, |
| 143 | 0x5e9f46bf,0x5a5e5b08,0x571d7dd1,0x53dc6066, |
| 144 | 0x4d9b3063,0x495a2dd4,0x44190b0d,0x40d816ba, |
| 145 | 0xaca5c697,0xa864db20,0xa527fdf9,0xa1e6e04e, |
| 146 | 0xbfa1b04b,0xbb60adfc,0xb6238b25,0xb2e29692, |
| 147 | 0x8aad2b2f,0x8e6c3698,0x832f1041,0x87ee0df6, |
| 148 | 0x99a95df3,0x9d684044,0x902b669d,0x94ea7b2a, |
| 149 | 0xe0b41de7,0xe4750050,0xe9362689,0xedf73b3e, |
| 150 | 0xf3b06b3b,0xf771768c,0xfa325055,0xfef34de2, |
| 151 | 0xc6bcf05f,0xc27dede8,0xcf3ecb31,0xcbffd686, |
| 152 | 0xd5b88683,0xd1799b34,0xdc3abded,0xd8fba05a, |
| 153 | 0x690ce0ee,0x6dcdfd59,0x608edb80,0x644fc637, |
| 154 | 0x7a089632,0x7ec98b85,0x738aad5c,0x774bb0eb, |
| 155 | 0x4f040d56,0x4bc510e1,0x46863638,0x42472b8f, |
| 156 | 0x5c007b8a,0x58c1663d,0x558240e4,0x51435d53, |
| 157 | 0x251d3b9e,0x21dc2629,0x2c9f00f0,0x285e1d47, |
| 158 | 0x36194d42,0x32d850f5,0x3f9b762c,0x3b5a6b9b, |
| 159 | 0x0315d626,0x07d4cb91,0x0a97ed48,0x0e56f0ff, |
| 160 | 0x1011a0fa,0x14d0bd4d,0x19939b94,0x1d528623, |
| 161 | 0xf12f560e,0xf5ee4bb9,0xf8ad6d60,0xfc6c70d7, |
| 162 | 0xe22b20d2,0xe6ea3d65,0xeba91bbc,0xef68060b, |
| 163 | 0xd727bbb6,0xd3e6a601,0xdea580d8,0xda649d6f, |
| 164 | 0xc423cd6a,0xc0e2d0dd,0xcda1f604,0xc960ebb3, |
| 165 | 0xbd3e8d7e,0xb9ff90c9,0xb4bcb610,0xb07daba7, |
| 166 | 0xae3afba2,0xaafbe615,0xa7b8c0cc,0xa379dd7b, |
| 167 | 0x9b3660c6,0x9ff77d71,0x92b45ba8,0x9675461f, |
| 168 | 0x8832161a,0x8cf30bad,0x81b02d74,0x857130c3, |
| 169 | 0x5d8a9099,0x594b8d2e,0x5408abf7,0x50c9b640, |
| 170 | 0x4e8ee645,0x4a4ffbf2,0x470cdd2b,0x43cdc09c, |
| 171 | 0x7b827d21,0x7f436096,0x7200464f,0x76c15bf8, |
| 172 | 0x68860bfd,0x6c47164a,0x61043093,0x65c52d24, |
| 173 | 0x119b4be9,0x155a565e,0x18197087,0x1cd86d30, |
| 174 | 0x029f3d35,0x065e2082,0x0b1d065b,0x0fdc1bec, |
| 175 | 0x3793a651,0x3352bbe6,0x3e119d3f,0x3ad08088, |
| 176 | 0x2497d08d,0x2056cd3a,0x2d15ebe3,0x29d4f654, |
| 177 | 0xc5a92679,0xc1683bce,0xcc2b1d17,0xc8ea00a0, |
| 178 | 0xd6ad50a5,0xd26c4d12,0xdf2f6bcb,0xdbee767c, |
| 179 | 0xe3a1cbc1,0xe760d676,0xea23f0af,0xeee2ed18, |
| 180 | 0xf0a5bd1d,0xf464a0aa,0xf9278673,0xfde69bc4, |
| 181 | 0x89b8fd09,0x8d79e0be,0x803ac667,0x84fbdbd0, |
| 182 | 0x9abc8bd5,0x9e7d9662,0x933eb0bb,0x97ffad0c, |
| 183 | 0xafb010b1,0xab710d06,0xa6322bdf,0xa2f33668, |
| 184 | 0xbcb4666d,0xb8757bda,0xb5365d03,0xb1f740b4}; |
| 185 | |
| 186 | /* init the encode/decode logical stream state */ |
| 187 | |
| 188 | int ogg_stream_init(ogg_stream_state *os,int serialno){ |
| 189 | if(os){ |
| 190 | memset(os,0,sizeof(*os)); |
| 191 | os->body_storage=16*1024; |
| 192 | os->lacing_storage=1024; |
| 193 | |
| 194 | os->body_data=_ogg_malloc(os->body_storage*sizeof(*os->body_data)); |
| 195 | os->lacing_vals=_ogg_malloc(os->lacing_storage*sizeof(*os->lacing_vals)); |
| 196 | os->granule_vals=_ogg_malloc(os->lacing_storage*sizeof(*os->granule_vals)); |
| 197 | |
| 198 | if(!os->body_data || !os->lacing_vals || !os->granule_vals){ |
| 199 | ogg_stream_clear(os); |
| 200 | return -1; |
| 201 | } |
| 202 | |
| 203 | os->serialno=serialno; |
| 204 | |
| 205 | return(0); |
| 206 | } |
| 207 | return(-1); |
| 208 | } |
| 209 | |
| 210 | /* async/delayed error detection for the ogg_stream_state */ |
| 211 | int ogg_stream_check(ogg_stream_state *os){ |
| 212 | if(!os || !os->body_data) return -1; |
| 213 | return 0; |
| 214 | } |
| 215 | |
| 216 | /* _clear does not free os, only the non-flat storage within */ |
| 217 | int ogg_stream_clear(ogg_stream_state *os){ |
| 218 | if(os){ |
| 219 | if(os->body_data)_ogg_free(os->body_data); |
| 220 | if(os->lacing_vals)_ogg_free(os->lacing_vals); |
| 221 | if(os->granule_vals)_ogg_free(os->granule_vals); |
| 222 | |
| 223 | memset(os,0,sizeof(*os)); |
| 224 | } |
| 225 | return(0); |
| 226 | } |
| 227 | |
| 228 | int ogg_stream_destroy(ogg_stream_state *os){ |
| 229 | if(os){ |
| 230 | ogg_stream_clear(os); |
| 231 | _ogg_free(os); |
| 232 | } |
| 233 | return(0); |
| 234 | } |
| 235 | |
| 236 | /* Helpers for ogg_stream_encode; this keeps the structure and |
| 237 | what's happening fairly clear */ |
| 238 | |
| 239 | static int _os_body_expand(ogg_stream_state *os,int needed){ |
| 240 | if(os->body_storage<=os->body_fill+needed){ |
| 241 | void *ret; |
| 242 | ret=_ogg_realloc(os->body_data,(os->body_storage+needed+1024)* |
| 243 | sizeof(*os->body_data)); |
| 244 | if(!ret){ |
| 245 | ogg_stream_clear(os); |
| 246 | return -1; |
| 247 | } |
| 248 | os->body_storage+=(needed+1024); |
| 249 | os->body_data=ret; |
| 250 | } |
| 251 | return 0; |
| 252 | } |
| 253 | |
| 254 | static int _os_lacing_expand(ogg_stream_state *os,int needed){ |
| 255 | if(os->lacing_storage<=os->lacing_fill+needed){ |
| 256 | void *ret; |
| 257 | ret=_ogg_realloc(os->lacing_vals,(os->lacing_storage+needed+32)* |
| 258 | sizeof(*os->lacing_vals)); |
| 259 | if(!ret){ |
| 260 | ogg_stream_clear(os); |
| 261 | return -1; |
| 262 | } |
| 263 | os->lacing_vals=ret; |
| 264 | ret=_ogg_realloc(os->granule_vals,(os->lacing_storage+needed+32)* |
| 265 | sizeof(*os->granule_vals)); |
| 266 | if(!ret){ |
| 267 | ogg_stream_clear(os); |
| 268 | return -1; |
| 269 | } |
| 270 | os->granule_vals=ret; |
| 271 | os->lacing_storage+=(needed+32); |
| 272 | } |
| 273 | return 0; |
| 274 | } |
| 275 | |
| 276 | /* checksum the page */ |
| 277 | /* Direct table CRC; note that this will be faster in the future if we |
| 278 | perform the checksum silmultaneously with other copies */ |
| 279 | |
| 280 | void ogg_page_checksum_set(ogg_page *og){ |
| 281 | if(og){ |
| 282 | ogg_uint32_t crc_reg=0; |
| 283 | int i; |
| 284 | |
| 285 | /* safety; needed for API behavior, but not framing code */ |
| 286 | og->header[22]=0; |
| 287 | og->header[23]=0; |
| 288 | og->header[24]=0; |
| 289 | og->header[25]=0; |
| 290 | |
| 291 | for(i=0;i<og->header_len;i++) |
| 292 | crc_reg=(crc_reg<<8)^crc_lookup[((crc_reg >> 24)&0xff)^og->header[i]]; |
| 293 | for(i=0;i<og->body_len;i++) |
| 294 | crc_reg=(crc_reg<<8)^crc_lookup[((crc_reg >> 24)&0xff)^og->body[i]]; |
| 295 | |
| 296 | og->header[22]=(unsigned char)(crc_reg&0xff); |
| 297 | og->header[23]=(unsigned char)((crc_reg>>8)&0xff); |
| 298 | og->header[24]=(unsigned char)((crc_reg>>16)&0xff); |
| 299 | og->header[25]=(unsigned char)((crc_reg>>24)&0xff); |
| 300 | } |
| 301 | } |
| 302 | |
| 303 | /* submit data to the internal buffer of the framing engine */ |
| 304 | int ogg_stream_iovecin(ogg_stream_state *os, ogg_iovec_t *iov, int count, |
| 305 | long e_o_s, ogg_int64_t granulepos){ |
| 306 | |
| 307 | int bytes = 0, lacing_vals, i; |
| 308 | |
| 309 | if(ogg_stream_check(os)) return -1; |
| 310 | if(!iov) return 0; |
| 311 | |
| 312 | for (i = 0; i < count; ++i) bytes += (int)iov[i].iov_len; |
| 313 | lacing_vals=bytes/255+1; |
| 314 | |
| 315 | if(os->body_returned){ |
| 316 | /* advance packet data according to the body_returned pointer. We |
| 317 | had to keep it around to return a pointer into the buffer last |
| 318 | call */ |
| 319 | |
| 320 | os->body_fill-=os->body_returned; |
| 321 | if(os->body_fill) |
| 322 | memmove(os->body_data,os->body_data+os->body_returned, |
| 323 | os->body_fill); |
| 324 | os->body_returned=0; |
| 325 | } |
| 326 | |
| 327 | /* make sure we have the buffer storage */ |
| 328 | if(_os_body_expand(os,bytes) || _os_lacing_expand(os,lacing_vals)) |
| 329 | return -1; |
| 330 | |
| 331 | /* Copy in the submitted packet. Yes, the copy is a waste; this is |
| 332 | the liability of overly clean abstraction for the time being. It |
| 333 | will actually be fairly easy to eliminate the extra copy in the |
| 334 | future */ |
| 335 | |
| 336 | for (i = 0; i < count; ++i) { |
| 337 | memcpy(os->body_data+os->body_fill, iov[i].iov_base, iov[i].iov_len); |
| 338 | os->body_fill += (int)iov[i].iov_len; |
| 339 | } |
| 340 | |
| 341 | /* Store lacing vals for this packet */ |
| 342 | for(i=0;i<lacing_vals-1;i++){ |
| 343 | os->lacing_vals[os->lacing_fill+i]=255; |
| 344 | os->granule_vals[os->lacing_fill+i]=os->granulepos; |
| 345 | } |
| 346 | os->lacing_vals[os->lacing_fill+i]=bytes%255; |
| 347 | os->granulepos=os->granule_vals[os->lacing_fill+i]=granulepos; |
| 348 | |
| 349 | /* flag the first segment as the beginning of the packet */ |
| 350 | os->lacing_vals[os->lacing_fill]|= 0x100; |
| 351 | |
| 352 | os->lacing_fill+=lacing_vals; |
| 353 | |
| 354 | /* for the sake of completeness */ |
| 355 | os->packetno++; |
| 356 | |
| 357 | if(e_o_s)os->e_o_s=1; |
| 358 | |
| 359 | return(0); |
| 360 | } |
| 361 | |
| 362 | int ogg_stream_packetin(ogg_stream_state *os,ogg_packet *op){ |
| 363 | ogg_iovec_t iov; |
| 364 | iov.iov_base = op->packet; |
| 365 | iov.iov_len = op->bytes; |
| 366 | return ogg_stream_iovecin(os, &iov, 1, op->e_o_s, op->granulepos); |
| 367 | } |
| 368 | |
| 369 | /* Conditionally flush a page; force==0 will only flush nominal-size |
| 370 | pages, force==1 forces us to flush a page regardless of page size |
| 371 | so long as there's any data available at all. */ |
| 372 | static int ogg_stream_flush_i(ogg_stream_state *os,ogg_page *og, int force){ |
| 373 | int i; |
| 374 | int vals=0; |
| 375 | int maxvals=(os->lacing_fill>255?255:os->lacing_fill); |
| 376 | int bytes=0; |
| 377 | long acc=0; |
| 378 | ogg_int64_t granule_pos=-1; |
| 379 | |
| 380 | if(ogg_stream_check(os)) return(0); |
| 381 | if(maxvals==0) return(0); |
| 382 | |
| 383 | /* construct a page */ |
| 384 | /* decide how many segments to include */ |
| 385 | |
| 386 | /* If this is the initial header case, the first page must only include |
| 387 | the initial header packet */ |
| 388 | if(os->b_o_s==0){ /* 'initial header page' case */ |
| 389 | granule_pos=0; |
| 390 | for(vals=0;vals<maxvals;vals++){ |
| 391 | if((os->lacing_vals[vals]&0x0ff)<255){ |
| 392 | vals++; |
| 393 | break; |
| 394 | } |
| 395 | } |
| 396 | }else{ |
| 397 | |
| 398 | /* The extra packets_done, packet_just_done logic here attempts to do two things: |
| 399 | 1) Don't unneccessarily span pages. |
| 400 | 2) Unless necessary, don't flush pages if there are less than four packets on |
| 401 | them; this expands page size to reduce unneccessary overhead if incoming packets |
| 402 | are large. |
| 403 | These are not necessary behaviors, just 'always better than naive flushing' |
| 404 | without requiring an application to explicitly request a specific optimized |
| 405 | behavior. We'll want an explicit behavior setup pathway eventually as well. */ |
| 406 | |
| 407 | int packets_done=0; |
| 408 | int packet_just_done=0; |
| 409 | for(vals=0;vals<maxvals;vals++){ |
| 410 | if(acc>4096 && packet_just_done>=4){ |
| 411 | force=1; |
| 412 | break; |
| 413 | } |
| 414 | acc+=os->lacing_vals[vals]&0x0ff; |
| 415 | if((os->lacing_vals[vals]&0xff)<255){ |
| 416 | granule_pos=os->granule_vals[vals]; |
| 417 | packet_just_done=++packets_done; |
| 418 | }else |
| 419 | packet_just_done=0; |
| 420 | } |
| 421 | if(vals==255)force=1; |
| 422 | } |
| 423 | |
| 424 | if(!force) return(0); |
| 425 | |
| 426 | /* construct the header in temp storage */ |
| 427 | memcpy(os->header,"OggS",4); |
| 428 | |
| 429 | /* stream structure version */ |
| 430 | os->header[4]=0x00; |
| 431 | |
| 432 | /* continued packet flag? */ |
| 433 | os->header[5]=0x00; |
| 434 | if((os->lacing_vals[0]&0x100)==0)os->header[5]|=0x01; |
| 435 | /* first page flag? */ |
| 436 | if(os->b_o_s==0)os->header[5]|=0x02; |
| 437 | /* last page flag? */ |
| 438 | if(os->e_o_s && os->lacing_fill==vals)os->header[5]|=0x04; |
| 439 | os->b_o_s=1; |
| 440 | |
| 441 | /* 64 bits of PCM position */ |
| 442 | for(i=6;i<14;i++){ |
| 443 | os->header[i]=(unsigned char)(granule_pos&0xff); |
| 444 | granule_pos>>=8; |
| 445 | } |
| 446 | |
| 447 | /* 32 bits of stream serial number */ |
| 448 | { |
| 449 | long serialno=os->serialno; |
| 450 | for(i=14;i<18;i++){ |
| 451 | os->header[i]=(unsigned char)(serialno&0xff); |
| 452 | serialno>>=8; |
| 453 | } |
| 454 | } |
| 455 | |
| 456 | /* 32 bits of page counter (we have both counter and page header |
| 457 | because this val can roll over) */ |
| 458 | if(os->pageno==-1)os->pageno=0; /* because someone called |
| 459 | stream_reset; this would be a |
| 460 | strange thing to do in an |
| 461 | encode stream, but it has |
| 462 | plausible uses */ |
| 463 | { |
| 464 | long pageno=os->pageno++; |
| 465 | for(i=18;i<22;i++){ |
| 466 | os->header[i]=(unsigned char)(pageno&0xff); |
| 467 | pageno>>=8; |
| 468 | } |
| 469 | } |
| 470 | |
| 471 | /* zero for computation; filled in later */ |
| 472 | os->header[22]=0; |
| 473 | os->header[23]=0; |
| 474 | os->header[24]=0; |
| 475 | os->header[25]=0; |
| 476 | |
| 477 | /* segment table */ |
| 478 | os->header[26]=(unsigned char)(vals&0xff); |
| 479 | for(i=0;i<vals;i++) |
| 480 | bytes+=os->header[i+27]=(unsigned char)(os->lacing_vals[i]&0xff); |
| 481 | |
| 482 | /* set pointers in the ogg_page struct */ |
| 483 | og->header=os->header; |
| 484 | og->header_len=os->header_fill=vals+27; |
| 485 | og->body=os->body_data+os->body_returned; |
| 486 | og->body_len=bytes; |
| 487 | |
| 488 | /* advance the lacing data and set the body_returned pointer */ |
| 489 | |
| 490 | os->lacing_fill-=vals; |
| 491 | memmove(os->lacing_vals,os->lacing_vals+vals,os->lacing_fill*sizeof(*os->lacing_vals)); |
| 492 | memmove(os->granule_vals,os->granule_vals+vals,os->lacing_fill*sizeof(*os->granule_vals)); |
| 493 | os->body_returned+=bytes; |
| 494 | |
| 495 | /* calculate the checksum */ |
| 496 | |
| 497 | ogg_page_checksum_set(og); |
| 498 | |
| 499 | /* done */ |
| 500 | return(1); |
| 501 | } |
| 502 | |
| 503 | /* This will flush remaining packets into a page (returning nonzero), |
| 504 | even if there is not enough data to trigger a flush normally |
| 505 | (undersized page). If there are no packets or partial packets to |
| 506 | flush, ogg_stream_flush returns 0. Note that ogg_stream_flush will |
| 507 | try to flush a normal sized page like ogg_stream_pageout; a call to |
| 508 | ogg_stream_flush does not guarantee that all packets have flushed. |
| 509 | Only a return value of 0 from ogg_stream_flush indicates all packet |
| 510 | data is flushed into pages. |
| 511 | |
| 512 | since ogg_stream_flush will flush the last page in a stream even if |
| 513 | it's undersized, you almost certainly want to use ogg_stream_pageout |
| 514 | (and *not* ogg_stream_flush) unless you specifically need to flush |
| 515 | an page regardless of size in the middle of a stream. */ |
| 516 | |
| 517 | int ogg_stream_flush(ogg_stream_state *os,ogg_page *og){ |
| 518 | return ogg_stream_flush_i(os,og,1); |
| 519 | } |
| 520 | |
| 521 | /* This constructs pages from buffered packet segments. The pointers |
| 522 | returned are to static buffers; do not free. The returned buffers are |
| 523 | good only until the next call (using the same ogg_stream_state) */ |
| 524 | |
| 525 | int ogg_stream_pageout(ogg_stream_state *os, ogg_page *og){ |
| 526 | int force=0; |
| 527 | if(ogg_stream_check(os)) return 0; |
| 528 | |
| 529 | if((os->e_o_s&&os->lacing_fill) || /* 'were done, now flush' case */ |
| 530 | (os->lacing_fill&&!os->b_o_s)) /* 'initial header page' case */ |
| 531 | force=1; |
| 532 | |
| 533 | return(ogg_stream_flush_i(os,og,force)); |
| 534 | } |
| 535 | |
| 536 | int ogg_stream_eos(ogg_stream_state *os){ |
| 537 | if(ogg_stream_check(os)) return 1; |
| 538 | return os->e_o_s; |
| 539 | } |
| 540 | |
| 541 | /* DECODING PRIMITIVES: packet streaming layer **********************/ |
| 542 | |
| 543 | /* This has two layers to place more of the multi-serialno and paging |
| 544 | control in the application's hands. First, we expose a data buffer |
| 545 | using ogg_sync_buffer(). The app either copies into the |
| 546 | buffer, or passes it directly to read(), etc. We then call |
| 547 | ogg_sync_wrote() to tell how many bytes we just added. |
| 548 | |
| 549 | Pages are returned (pointers into the buffer in ogg_sync_state) |
| 550 | by ogg_sync_pageout(). The page is then submitted to |
| 551 | ogg_stream_pagein() along with the appropriate |
| 552 | ogg_stream_state* (ie, matching serialno). We then get raw |
| 553 | packets out calling ogg_stream_packetout() with a |
| 554 | ogg_stream_state. */ |
| 555 | |
| 556 | /* initialize the struct to a known state */ |
| 557 | int ogg_sync_init(ogg_sync_state *oy){ |
| 558 | if(oy){ |
| 559 | oy->storage = -1; /* used as a readiness flag */ |
| 560 | memset(oy,0,sizeof(*oy)); |
| 561 | } |
| 562 | return(0); |
| 563 | } |
| 564 | |
| 565 | /* clear non-flat storage within */ |
| 566 | int ogg_sync_clear(ogg_sync_state *oy){ |
| 567 | if(oy){ |
| 568 | if(oy->data)_ogg_free(oy->data); |
| 569 | memset(oy,0,sizeof(*oy)); |
| 570 | } |
| 571 | return(0); |
| 572 | } |
| 573 | |
| 574 | int ogg_sync_destroy(ogg_sync_state *oy){ |
| 575 | if(oy){ |
| 576 | ogg_sync_clear(oy); |
| 577 | _ogg_free(oy); |
| 578 | } |
| 579 | return(0); |
| 580 | } |
| 581 | |
| 582 | int ogg_sync_check(ogg_sync_state *oy){ |
| 583 | if(oy->storage<0) return -1; |
| 584 | return 0; |
| 585 | } |
| 586 | |
| 587 | char *ogg_sync_buffer(ogg_sync_state *oy, long size){ |
| 588 | if(ogg_sync_check(oy)) return NULL; |
| 589 | |
| 590 | /* first, clear out any space that has been previously returned */ |
| 591 | if(oy->returned){ |
| 592 | oy->fill-=oy->returned; |
| 593 | if(oy->fill>0) |
| 594 | memmove(oy->data,oy->data+oy->returned,oy->fill); |
| 595 | oy->returned=0; |
| 596 | } |
| 597 | |
| 598 | if(size>oy->storage-oy->fill){ |
| 599 | /* We need to extend the internal buffer */ |
| 600 | long newsize=size+oy->fill+4096; /* an extra page to be nice */ |
| 601 | void *ret; |
| 602 | |
| 603 | if(oy->data) |
| 604 | ret=_ogg_realloc(oy->data,newsize); |
| 605 | else |
| 606 | ret=_ogg_malloc(newsize); |
| 607 | if(!ret){ |
| 608 | ogg_sync_clear(oy); |
| 609 | return NULL; |
| 610 | } |
| 611 | oy->data=ret; |
| 612 | oy->storage=newsize; |
| 613 | } |
| 614 | |
| 615 | /* expose a segment at least as large as requested at the fill mark */ |
| 616 | return((char *)oy->data+oy->fill); |
| 617 | } |
| 618 | |
| 619 | int ogg_sync_wrote(ogg_sync_state *oy, long bytes){ |
| 620 | if(ogg_sync_check(oy))return -1; |
| 621 | if(oy->fill+bytes>oy->storage)return -1; |
| 622 | oy->fill+=bytes; |
| 623 | return(0); |
| 624 | } |
| 625 | |
| 626 | /* sync the stream. This is meant to be useful for finding page |
| 627 | boundaries. |
| 628 | |
| 629 | return values for this: |
| 630 | -n) skipped n bytes |
| 631 | 0) page not ready; more data (no bytes skipped) |
| 632 | n) page synced at current location; page length n bytes |
| 633 | |
| 634 | */ |
| 635 | |
| 636 | long ogg_sync_pageseek(ogg_sync_state *oy,ogg_page *og){ |
| 637 | unsigned char *page=oy->data+oy->returned; |
| 638 | unsigned char *next; |
| 639 | long bytes=oy->fill-oy->returned; |
| 640 | |
| 641 | if(ogg_sync_check(oy))return 0; |
| 642 | |
| 643 | if(oy->headerbytes==0){ |
| 644 | int headerbytes,i; |
| 645 | if(bytes<27)return(0); /* not enough for a header */ |
| 646 | |
| 647 | /* verify capture pattern */ |
| 648 | if(memcmp(page,"OggS",4))goto sync_fail; |
| 649 | |
| 650 | headerbytes=page[26]+27; |
| 651 | if(bytes<headerbytes)return(0); /* not enough for header + seg table */ |
| 652 | |
| 653 | /* count up body length in the segment table */ |
| 654 | |
| 655 | for(i=0;i<page[26];i++) |
| 656 | oy->bodybytes+=page[27+i]; |
| 657 | oy->headerbytes=headerbytes; |
| 658 | } |
| 659 | |
| 660 | if(oy->bodybytes+oy->headerbytes>bytes)return(0); |
| 661 | |
| 662 | /* The whole test page is buffered. Verify the checksum */ |
| 663 | { |
| 664 | /* Grab the checksum bytes, set the header field to zero */ |
| 665 | char chksum[4]; |
| 666 | ogg_page log; |
| 667 | |
| 668 | memcpy(chksum,page+22,4); |
| 669 | memset(page+22,0,4); |
| 670 | |
| 671 | /* set up a temp page struct and recompute the checksum */ |
| 672 | log.header=page; |
| 673 | log.header_len=oy->headerbytes; |
| 674 | log.body=page+oy->headerbytes; |
| 675 | log.body_len=oy->bodybytes; |
| 676 | ogg_page_checksum_set(&log); |
| 677 | |
| 678 | /* Compare */ |
| 679 | if(memcmp(chksum,page+22,4)){ |
| 680 | /* D'oh. Mismatch! Corrupt page (or miscapture and not a page |
| 681 | at all) */ |
| 682 | /* replace the computed checksum with the one actually read in */ |
| 683 | memcpy(page+22,chksum,4); |
| 684 | |
| 685 | /* Bad checksum. Lose sync */ |
| 686 | goto sync_fail; |
| 687 | } |
| 688 | } |
| 689 | |
| 690 | /* yes, have a whole page all ready to go */ |
| 691 | { |
| 692 | unsigned char *page=oy->data+oy->returned; |
| 693 | long bytes; |
| 694 | |
| 695 | if(og){ |
| 696 | og->header=page; |
| 697 | og->header_len=oy->headerbytes; |
| 698 | og->body=page+oy->headerbytes; |
| 699 | og->body_len=oy->bodybytes; |
| 700 | } |
| 701 | |
| 702 | oy->unsynced=0; |
| 703 | oy->returned+=(bytes=oy->headerbytes+oy->bodybytes); |
| 704 | oy->headerbytes=0; |
| 705 | oy->bodybytes=0; |
| 706 | return(bytes); |
| 707 | } |
| 708 | |
| 709 | sync_fail: |
| 710 | |
| 711 | oy->headerbytes=0; |
| 712 | oy->bodybytes=0; |
| 713 | |
| 714 | /* search for possible capture */ |
| 715 | next=memchr(page+1,'O',bytes-1); |
| 716 | if(!next) |
| 717 | next=oy->data+oy->fill; |
| 718 | |
| 719 | oy->returned=(int)(next-oy->data); |
| 720 | return((long)-(next-page)); |
| 721 | } |
| 722 | |
| 723 | /* sync the stream and get a page. Keep trying until we find a page. |
| 724 | Supress 'sync errors' after reporting the first. |
| 725 | |
| 726 | return values: |
| 727 | -1) recapture (hole in data) |
| 728 | 0) need more data |
| 729 | 1) page returned |
| 730 | |
| 731 | Returns pointers into buffered data; invalidated by next call to |
| 732 | _stream, _clear, _init, or _buffer */ |
| 733 | |
| 734 | int ogg_sync_pageout(ogg_sync_state *oy, ogg_page *og){ |
| 735 | |
| 736 | if(ogg_sync_check(oy))return 0; |
| 737 | |
| 738 | /* all we need to do is verify a page at the head of the stream |
| 739 | buffer. If it doesn't verify, we look for the next potential |
| 740 | frame */ |
| 741 | |
| 742 | for(;;){ |
| 743 | long ret=ogg_sync_pageseek(oy,og); |
| 744 | if(ret>0){ |
| 745 | /* have a page */ |
| 746 | return(1); |
| 747 | } |
| 748 | if(ret==0){ |
| 749 | /* need more data */ |
| 750 | return(0); |
| 751 | } |
| 752 | |
| 753 | /* head did not start a synced page... skipped some bytes */ |
| 754 | if(!oy->unsynced){ |
| 755 | oy->unsynced=1; |
| 756 | return(-1); |
| 757 | } |
| 758 | |
| 759 | /* loop. keep looking */ |
| 760 | |
| 761 | } |
| 762 | } |
| 763 | |
| 764 | /* add the incoming page to the stream state; we decompose the page |
| 765 | into packet segments here as well. */ |
| 766 | |
| 767 | int ogg_stream_pagein(ogg_stream_state *os, ogg_page *og){ |
| 768 | unsigned char *header=og->header; |
| 769 | unsigned char *body=og->body; |
| 770 | long bodysize=og->body_len; |
| 771 | int segptr=0; |
| 772 | |
| 773 | int version=ogg_page_version(og); |
| 774 | int continued=ogg_page_continued(og); |
| 775 | int bos=ogg_page_bos(og); |
| 776 | int eos=ogg_page_eos(og); |
| 777 | ogg_int64_t granulepos=ogg_page_granulepos(og); |
| 778 | int serialno=ogg_page_serialno(og); |
| 779 | long pageno=ogg_page_pageno(og); |
| 780 | int segments=header[26]; |
| 781 | |
| 782 | if(ogg_stream_check(os)) return -1; |
| 783 | |
| 784 | /* clean up 'returned data' */ |
| 785 | { |
| 786 | long lr=os->lacing_returned; |
| 787 | long br=os->body_returned; |
| 788 | |
| 789 | /* body data */ |
| 790 | if(br){ |
| 791 | os->body_fill-=br; |
| 792 | if(os->body_fill) |
| 793 | memmove(os->body_data,os->body_data+br,os->body_fill); |
| 794 | os->body_returned=0; |
| 795 | } |
| 796 | |
| 797 | if(lr){ |
| 798 | /* segment table */ |
| 799 | if(os->lacing_fill-lr){ |
| 800 | memmove(os->lacing_vals,os->lacing_vals+lr, |
| 801 | (os->lacing_fill-lr)*sizeof(*os->lacing_vals)); |
| 802 | memmove(os->granule_vals,os->granule_vals+lr, |
| 803 | (os->lacing_fill-lr)*sizeof(*os->granule_vals)); |
| 804 | } |
| 805 | os->lacing_fill-=lr; |
| 806 | os->lacing_packet-=lr; |
| 807 | os->lacing_returned=0; |
| 808 | } |
| 809 | } |
| 810 | |
| 811 | /* check the serial number */ |
| 812 | if(serialno!=os->serialno)return(-1); |
| 813 | if(version>0)return(-1); |
| 814 | |
| 815 | if(_os_lacing_expand(os,segments+1)) return -1; |
| 816 | |
| 817 | /* are we in sequence? */ |
| 818 | if(pageno!=os->pageno){ |
| 819 | int i; |
| 820 | |
| 821 | /* unroll previous partial packet (if any) */ |
| 822 | for(i=os->lacing_packet;i<os->lacing_fill;i++) |
| 823 | os->body_fill-=os->lacing_vals[i]&0xff; |
| 824 | os->lacing_fill=os->lacing_packet; |
| 825 | |
| 826 | /* make a note of dropped data in segment table */ |
| 827 | if(os->pageno!=-1){ |
| 828 | os->lacing_vals[os->lacing_fill++]=0x400; |
| 829 | os->lacing_packet++; |
| 830 | } |
| 831 | } |
| 832 | |
| 833 | /* are we a 'continued packet' page? If so, we may need to skip |
| 834 | some segments */ |
| 835 | if(continued){ |
| 836 | if(os->lacing_fill<1 || |
| 837 | os->lacing_vals[os->lacing_fill-1]==0x400){ |
| 838 | bos=0; |
| 839 | for(;segptr<segments;segptr++){ |
| 840 | int val=header[27+segptr]; |
| 841 | body+=val; |
| 842 | bodysize-=val; |
| 843 | if(val<255){ |
| 844 | segptr++; |
| 845 | break; |
| 846 | } |
| 847 | } |
| 848 | } |
| 849 | } |
| 850 | |
| 851 | if(bodysize){ |
| 852 | if(_os_body_expand(os,bodysize)) return -1; |
| 853 | memcpy(os->body_data+os->body_fill,body,bodysize); |
| 854 | os->body_fill+=bodysize; |
| 855 | } |
| 856 | |
| 857 | { |
| 858 | int saved=-1; |
| 859 | while(segptr<segments){ |
| 860 | int val=header[27+segptr]; |
| 861 | os->lacing_vals[os->lacing_fill]=val; |
| 862 | os->granule_vals[os->lacing_fill]=-1; |
| 863 | |
| 864 | if(bos){ |
| 865 | os->lacing_vals[os->lacing_fill]|=0x100; |
| 866 | bos=0; |
| 867 | } |
| 868 | |
| 869 | if(val<255)saved=os->lacing_fill; |
| 870 | |
| 871 | os->lacing_fill++; |
| 872 | segptr++; |
| 873 | |
| 874 | if(val<255)os->lacing_packet=os->lacing_fill; |
| 875 | } |
| 876 | |
| 877 | /* set the granulepos on the last granuleval of the last full packet */ |
| 878 | if(saved!=-1){ |
| 879 | os->granule_vals[saved]=granulepos; |
| 880 | } |
| 881 | |
| 882 | } |
| 883 | |
| 884 | if(eos){ |
| 885 | os->e_o_s=1; |
| 886 | if(os->lacing_fill>0) |
| 887 | os->lacing_vals[os->lacing_fill-1]|=0x200; |
| 888 | } |
| 889 | |
| 890 | os->pageno=pageno+1; |
| 891 | |
| 892 | return(0); |
| 893 | } |
| 894 | |
| 895 | /* clear things to an initial state. Good to call, eg, before seeking */ |
| 896 | int ogg_sync_reset(ogg_sync_state *oy){ |
| 897 | if(ogg_sync_check(oy))return -1; |
| 898 | |
| 899 | oy->fill=0; |
| 900 | oy->returned=0; |
| 901 | oy->unsynced=0; |
| 902 | oy->headerbytes=0; |
| 903 | oy->bodybytes=0; |
| 904 | return(0); |
| 905 | } |
| 906 | |
| 907 | int ogg_stream_reset(ogg_stream_state *os){ |
| 908 | if(ogg_stream_check(os)) return -1; |
| 909 | |
| 910 | os->body_fill=0; |
| 911 | os->body_returned=0; |
| 912 | |
| 913 | os->lacing_fill=0; |
| 914 | os->lacing_packet=0; |
| 915 | os->lacing_returned=0; |
| 916 | |
| 917 | os->header_fill=0; |
| 918 | |
| 919 | os->e_o_s=0; |
| 920 | os->b_o_s=0; |
| 921 | os->pageno=-1; |
| 922 | os->packetno=0; |
| 923 | os->granulepos=0; |
| 924 | |
| 925 | return(0); |
| 926 | } |
| 927 | |
| 928 | int ogg_stream_reset_serialno(ogg_stream_state *os,int serialno){ |
| 929 | if(ogg_stream_check(os)) return -1; |
| 930 | ogg_stream_reset(os); |
| 931 | os->serialno=serialno; |
| 932 | return(0); |
| 933 | } |
| 934 | |
| 935 | static int _packetout(ogg_stream_state *os,ogg_packet *op,int adv){ |
| 936 | |
| 937 | /* The last part of decode. We have the stream broken into packet |
| 938 | segments. Now we need to group them into packets (or return the |
| 939 | out of sync markers) */ |
| 940 | |
| 941 | int ptr=os->lacing_returned; |
| 942 | |
| 943 | if(os->lacing_packet<=ptr)return(0); |
| 944 | |
| 945 | if(os->lacing_vals[ptr]&0x400){ |
| 946 | /* we need to tell the codec there's a gap; it might need to |
| 947 | handle previous packet dependencies. */ |
| 948 | os->lacing_returned++; |
| 949 | os->packetno++; |
| 950 | return(-1); |
| 951 | } |
| 952 | |
| 953 | if(!op && !adv)return(1); /* just using peek as an inexpensive way |
| 954 | to ask if there's a whole packet |
| 955 | waiting */ |
| 956 | |
| 957 | /* Gather the whole packet. We'll have no holes or a partial packet */ |
| 958 | { |
| 959 | int size=os->lacing_vals[ptr]&0xff; |
| 960 | int bytes=size; |
| 961 | int eos=os->lacing_vals[ptr]&0x200; /* last packet of the stream? */ |
| 962 | int bos=os->lacing_vals[ptr]&0x100; /* first packet of the stream? */ |
| 963 | |
| 964 | while(size==255){ |
| 965 | int val=os->lacing_vals[++ptr]; |
| 966 | size=val&0xff; |
| 967 | if(val&0x200)eos=0x200; |
| 968 | bytes+=size; |
| 969 | } |
| 970 | |
| 971 | if(op){ |
| 972 | op->e_o_s=eos; |
| 973 | op->b_o_s=bos; |
| 974 | op->packet=os->body_data+os->body_returned; |
| 975 | op->packetno=os->packetno; |
| 976 | op->granulepos=os->granule_vals[ptr]; |
| 977 | op->bytes=bytes; |
| 978 | } |
| 979 | |
| 980 | if(adv){ |
| 981 | os->body_returned+=bytes; |
| 982 | os->lacing_returned=ptr+1; |
| 983 | os->packetno++; |
| 984 | } |
| 985 | } |
| 986 | return(1); |
| 987 | } |
| 988 | |
| 989 | int ogg_stream_packetout(ogg_stream_state *os,ogg_packet *op){ |
| 990 | if(ogg_stream_check(os)) return 0; |
| 991 | return _packetout(os,op,1); |
| 992 | } |
| 993 | |
| 994 | int ogg_stream_packetpeek(ogg_stream_state *os,ogg_packet *op){ |
| 995 | if(ogg_stream_check(os)) return 0; |
| 996 | return _packetout(os,op,0); |
| 997 | } |
| 998 | |
| 999 | void ogg_packet_clear(ogg_packet *op) { |
| 1000 | _ogg_free(op->packet); |
| 1001 | memset(op, 0, sizeof(*op)); |
| 1002 | } |
| 1003 | |
| 1004 | #ifdef _V_SELFTEST |
| 1005 | #include <stdio.h> |
| 1006 | |
| 1007 | ogg_stream_state os_en, os_de; |
| 1008 | ogg_sync_state oy; |
| 1009 | |
| 1010 | void checkpacket(ogg_packet *op,int len, int no, int pos){ |
| 1011 | long j; |
| 1012 | static int sequence=0; |
| 1013 | static int lastno=0; |
| 1014 | |
| 1015 | if(op->bytes!=len){ |
| 1016 | fprintf(stderr,"incorrect packet length (%d != %d)!\n",op->bytes,len); |
| 1017 | exit(1); |
| 1018 | } |
| 1019 | if(op->granulepos!=pos){ |
| 1020 | fprintf(stderr,"incorrect packet granpos (%ld != %ld)!\n",(long)op->granulepos,pos); |
| 1021 | exit(1); |
| 1022 | } |
| 1023 | |
| 1024 | /* packet number just follows sequence/gap; adjust the input number |
| 1025 | for that */ |
| 1026 | if(no==0){ |
| 1027 | sequence=0; |
| 1028 | }else{ |
| 1029 | sequence++; |
| 1030 | if(no>lastno+1) |
| 1031 | sequence++; |
| 1032 | } |
| 1033 | lastno=no; |
| 1034 | if(op->packetno!=sequence){ |
| 1035 | fprintf(stderr,"incorrect packet sequence %ld != %d\n", |
| 1036 | (long)(op->packetno),sequence); |
| 1037 | exit(1); |
| 1038 | } |
| 1039 | |
| 1040 | /* Test data */ |
| 1041 | for(j=0;j<op->bytes;j++) |
| 1042 | if(op->packet[j]!=((j+no)&0xff)){ |
| 1043 | fprintf(stderr,"body data mismatch (1) at pos %ld: %x!=%lx!\n\n", |
| 1044 | j,op->packet[j],(j+no)&0xff); |
| 1045 | exit(1); |
| 1046 | } |
| 1047 | } |
| 1048 | |
| 1049 | void check_page(unsigned char *data,const int *header,ogg_page *og){ |
| 1050 | long j; |
| 1051 | /* Test data */ |
| 1052 | for(j=0;j<og->body_len;j++) |
| 1053 | if(og->body[j]!=data[j]){ |
| 1054 | fprintf(stderr,"body data mismatch (2) at pos %ld: %x!=%x!\n\n", |
| 1055 | j,data[j],og->body[j]); |
| 1056 | exit(1); |
| 1057 | } |
| 1058 | |
| 1059 | /* Test header */ |
| 1060 | for(j=0;j<og->header_len;j++){ |
| 1061 | if(og->header[j]!=header[j]){ |
| 1062 | fprintf(stderr,"header content mismatch at pos %ld:\n",j); |
| 1063 | for(j=0;j<header[26]+27;j++) |
| 1064 | fprintf(stderr," (%ld)%02x:%02x",j,header[j],og->header[j]); |
| 1065 | fprintf(stderr,"\n"); |
| 1066 | exit(1); |
| 1067 | } |
| 1068 | } |
| 1069 | if(og->header_len!=header[26]+27){ |
| 1070 | fprintf(stderr,"header length incorrect! (%ld!=%d)\n", |
| 1071 | og->header_len,header[26]+27); |
| 1072 | exit(1); |
| 1073 | } |
| 1074 | } |
| 1075 | |
| 1076 | void print_header(ogg_page *og){ |
| 1077 | int j; |
| 1078 | fprintf(stderr,"\nHEADER:\n"); |
| 1079 | fprintf(stderr," capture: %c %c %c %c version: %d flags: %x\n", |
| 1080 | og->header[0],og->header[1],og->header[2],og->header[3], |
| 1081 | (int)og->header[4],(int)og->header[5]); |
| 1082 | |
| 1083 | fprintf(stderr," granulepos: %d serialno: %d pageno: %ld\n", |
| 1084 | (og->header[9]<<24)|(og->header[8]<<16)| |
| 1085 | (og->header[7]<<8)|og->header[6], |
| 1086 | (og->header[17]<<24)|(og->header[16]<<16)| |
| 1087 | (og->header[15]<<8)|og->header[14], |
| 1088 | ((long)(og->header[21])<<24)|(og->header[20]<<16)| |
| 1089 | (og->header[19]<<8)|og->header[18]); |
| 1090 | |
| 1091 | fprintf(stderr," checksum: %02x:%02x:%02x:%02x\n segments: %d (", |
| 1092 | (int)og->header[22],(int)og->header[23], |
| 1093 | (int)og->header[24],(int)og->header[25], |
| 1094 | (int)og->header[26]); |
| 1095 | |
| 1096 | for(j=27;j<og->header_len;j++) |
| 1097 | fprintf(stderr,"%d ",(int)og->header[j]); |
| 1098 | fprintf(stderr,")\n\n"); |
| 1099 | } |
| 1100 | |
| 1101 | void copy_page(ogg_page *og){ |
| 1102 | unsigned char *temp=_ogg_malloc(og->header_len); |
| 1103 | memcpy(temp,og->header,og->header_len); |
| 1104 | og->header=temp; |
| 1105 | |
| 1106 | temp=_ogg_malloc(og->body_len); |
| 1107 | memcpy(temp,og->body,og->body_len); |
| 1108 | og->body=temp; |
| 1109 | } |
| 1110 | |
| 1111 | void free_page(ogg_page *og){ |
| 1112 | _ogg_free (og->header); |
| 1113 | _ogg_free (og->body); |
| 1114 | } |
| 1115 | |
| 1116 | void error(void){ |
| 1117 | fprintf(stderr,"error!\n"); |
| 1118 | exit(1); |
| 1119 | } |
| 1120 | |
| 1121 | /* 17 only */ |
| 1122 | const int head1_0[] = {0x4f,0x67,0x67,0x53,0,0x06, |
| 1123 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1124 | 0x01,0x02,0x03,0x04,0,0,0,0, |
| 1125 | 0x15,0xed,0xec,0x91, |
| 1126 | 1, |
| 1127 | 17}; |
| 1128 | |
| 1129 | /* 17, 254, 255, 256, 500, 510, 600 byte, pad */ |
| 1130 | const int head1_1[] = {0x4f,0x67,0x67,0x53,0,0x02, |
| 1131 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1132 | 0x01,0x02,0x03,0x04,0,0,0,0, |
| 1133 | 0x59,0x10,0x6c,0x2c, |
| 1134 | 1, |
| 1135 | 17}; |
| 1136 | const int head2_1[] = {0x4f,0x67,0x67,0x53,0,0x04, |
| 1137 | 0x07,0x18,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1138 | 0x01,0x02,0x03,0x04,1,0,0,0, |
| 1139 | 0x89,0x33,0x85,0xce, |
| 1140 | 13, |
| 1141 | 254,255,0,255,1,255,245,255,255,0, |
| 1142 | 255,255,90}; |
| 1143 | |
| 1144 | /* nil packets; beginning,middle,end */ |
| 1145 | const int head1_2[] = {0x4f,0x67,0x67,0x53,0,0x02, |
| 1146 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1147 | 0x01,0x02,0x03,0x04,0,0,0,0, |
| 1148 | 0xff,0x7b,0x23,0x17, |
| 1149 | 1, |
| 1150 | 0}; |
| 1151 | const int head2_2[] = {0x4f,0x67,0x67,0x53,0,0x04, |
| 1152 | 0x07,0x28,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1153 | 0x01,0x02,0x03,0x04,1,0,0,0, |
| 1154 | 0x5c,0x3f,0x66,0xcb, |
| 1155 | 17, |
| 1156 | 17,254,255,0,0,255,1,0,255,245,255,255,0, |
| 1157 | 255,255,90,0}; |
| 1158 | |
| 1159 | /* large initial packet */ |
| 1160 | const int head1_3[] = {0x4f,0x67,0x67,0x53,0,0x02, |
| 1161 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1162 | 0x01,0x02,0x03,0x04,0,0,0,0, |
| 1163 | 0x01,0x27,0x31,0xaa, |
| 1164 | 18, |
| 1165 | 255,255,255,255,255,255,255,255, |
| 1166 | 255,255,255,255,255,255,255,255,255,10}; |
| 1167 | |
| 1168 | const int head2_3[] = {0x4f,0x67,0x67,0x53,0,0x04, |
| 1169 | 0x07,0x08,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1170 | 0x01,0x02,0x03,0x04,1,0,0,0, |
| 1171 | 0x7f,0x4e,0x8a,0xd2, |
| 1172 | 4, |
| 1173 | 255,4,255,0}; |
| 1174 | |
| 1175 | |
| 1176 | /* continuing packet test */ |
| 1177 | const int head1_4[] = {0x4f,0x67,0x67,0x53,0,0x02, |
| 1178 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1179 | 0x01,0x02,0x03,0x04,0,0,0,0, |
| 1180 | 0xff,0x7b,0x23,0x17, |
| 1181 | 1, |
| 1182 | 0}; |
| 1183 | |
| 1184 | const int head2_4[] = {0x4f,0x67,0x67,0x53,0,0x00, |
| 1185 | 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF, |
| 1186 | 0x01,0x02,0x03,0x04,1,0,0,0, |
| 1187 | 0xf8,0x3c,0x19,0x79, |
| 1188 | 255, |
| 1189 | 255,255,255,255,255,255,255,255, |
| 1190 | 255,255,255,255,255,255,255,255, |
| 1191 | 255,255,255,255,255,255,255,255, |
| 1192 | 255,255,255,255,255,255,255,255, |
| 1193 | 255,255,255,255,255,255,255,255, |
| 1194 | 255,255,255,255,255,255,255,255, |
| 1195 | 255,255,255,255,255,255,255,255, |
| 1196 | 255,255,255,255,255,255,255,255, |
| 1197 | 255,255,255,255,255,255,255,255, |
| 1198 | 255,255,255,255,255,255,255,255, |
| 1199 | 255,255,255,255,255,255,255,255, |
| 1200 | 255,255,255,255,255,255,255,255, |
| 1201 | 255,255,255,255,255,255,255,255, |
| 1202 | 255,255,255,255,255,255,255,255, |
| 1203 | 255,255,255,255,255,255,255,255, |
| 1204 | 255,255,255,255,255,255,255,255, |
| 1205 | 255,255,255,255,255,255,255,255, |
| 1206 | 255,255,255,255,255,255,255,255, |
| 1207 | 255,255,255,255,255,255,255,255, |
| 1208 | 255,255,255,255,255,255,255,255, |
| 1209 | 255,255,255,255,255,255,255,255, |
| 1210 | 255,255,255,255,255,255,255,255, |
| 1211 | 255,255,255,255,255,255,255,255, |
| 1212 | 255,255,255,255,255,255,255,255, |
| 1213 | 255,255,255,255,255,255,255,255, |
| 1214 | 255,255,255,255,255,255,255,255, |
| 1215 | 255,255,255,255,255,255,255,255, |
| 1216 | 255,255,255,255,255,255,255,255, |
| 1217 | 255,255,255,255,255,255,255,255, |
| 1218 | 255,255,255,255,255,255,255,255, |
| 1219 | 255,255,255,255,255,255,255,255, |
| 1220 | 255,255,255,255,255,255,255}; |
| 1221 | |
| 1222 | const int head3_4[] = {0x4f,0x67,0x67,0x53,0,0x05, |
| 1223 | 0x07,0x0c,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1224 | 0x01,0x02,0x03,0x04,2,0,0,0, |
| 1225 | 0x38,0xe6,0xb6,0x28, |
| 1226 | 6, |
| 1227 | 255,220,255,4,255,0}; |
| 1228 | |
| 1229 | |
| 1230 | /* spill expansion test */ |
| 1231 | const int head1_4b[] = {0x4f,0x67,0x67,0x53,0,0x02, |
| 1232 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1233 | 0x01,0x02,0x03,0x04,0,0,0,0, |
| 1234 | 0xff,0x7b,0x23,0x17, |
| 1235 | 1, |
| 1236 | 0}; |
| 1237 | |
| 1238 | const int head2_4b[] = {0x4f,0x67,0x67,0x53,0,0x00, |
| 1239 | 0x07,0x10,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1240 | 0x01,0x02,0x03,0x04,1,0,0,0, |
| 1241 | 0xce,0x8f,0x17,0x1a, |
| 1242 | 23, |
| 1243 | 255,255,255,255,255,255,255,255, |
| 1244 | 255,255,255,255,255,255,255,255,255,10,255,4,255,0,0}; |
| 1245 | |
| 1246 | |
| 1247 | const int head3_4b[] = {0x4f,0x67,0x67,0x53,0,0x04, |
| 1248 | 0x07,0x14,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1249 | 0x01,0x02,0x03,0x04,2,0,0,0, |
| 1250 | 0x9b,0xb2,0x50,0xa1, |
| 1251 | 1, |
| 1252 | 0}; |
| 1253 | |
| 1254 | /* page with the 255 segment limit */ |
| 1255 | const int head1_5[] = {0x4f,0x67,0x67,0x53,0,0x02, |
| 1256 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1257 | 0x01,0x02,0x03,0x04,0,0,0,0, |
| 1258 | 0xff,0x7b,0x23,0x17, |
| 1259 | 1, |
| 1260 | 0}; |
| 1261 | |
| 1262 | const int head2_5[] = {0x4f,0x67,0x67,0x53,0,0x00, |
| 1263 | 0x07,0xfc,0x03,0x00,0x00,0x00,0x00,0x00, |
| 1264 | 0x01,0x02,0x03,0x04,1,0,0,0, |
| 1265 | 0xed,0x2a,0x2e,0xa7, |
| 1266 | 255, |
| 1267 | 10,10,10,10,10,10,10,10, |
| 1268 | 10,10,10,10,10,10,10,10, |
| 1269 | 10,10,10,10,10,10,10,10, |
| 1270 | 10,10,10,10,10,10,10,10, |
| 1271 | 10,10,10,10,10,10,10,10, |
| 1272 | 10,10,10,10,10,10,10,10, |
| 1273 | 10,10,10,10,10,10,10,10, |
| 1274 | 10,10,10,10,10,10,10,10, |
| 1275 | 10,10,10,10,10,10,10,10, |
| 1276 | 10,10,10,10,10,10,10,10, |
| 1277 | 10,10,10,10,10,10,10,10, |
| 1278 | 10,10,10,10,10,10,10,10, |
| 1279 | 10,10,10,10,10,10,10,10, |
| 1280 | 10,10,10,10,10,10,10,10, |
| 1281 | 10,10,10,10,10,10,10,10, |
| 1282 | 10,10,10,10,10,10,10,10, |
| 1283 | 10,10,10,10,10,10,10,10, |
| 1284 | 10,10,10,10,10,10,10,10, |
| 1285 | 10,10,10,10,10,10,10,10, |
| 1286 | 10,10,10,10,10,10,10,10, |
| 1287 | 10,10,10,10,10,10,10,10, |
| 1288 | 10,10,10,10,10,10,10,10, |
| 1289 | 10,10,10,10,10,10,10,10, |
| 1290 | 10,10,10,10,10,10,10,10, |
| 1291 | 10,10,10,10,10,10,10,10, |
| 1292 | 10,10,10,10,10,10,10,10, |
| 1293 | 10,10,10,10,10,10,10,10, |
| 1294 | 10,10,10,10,10,10,10,10, |
| 1295 | 10,10,10,10,10,10,10,10, |
| 1296 | 10,10,10,10,10,10,10,10, |
| 1297 | 10,10,10,10,10,10,10,10, |
| 1298 | 10,10,10,10,10,10,10}; |
| 1299 | |
| 1300 | const int head3_5[] = {0x4f,0x67,0x67,0x53,0,0x04, |
| 1301 | 0x07,0x00,0x04,0x00,0x00,0x00,0x00,0x00, |
| 1302 | 0x01,0x02,0x03,0x04,2,0,0,0, |
| 1303 | 0x6c,0x3b,0x82,0x3d, |
| 1304 | 1, |
| 1305 | 50}; |
| 1306 | |
| 1307 | |
| 1308 | /* packet that overspans over an entire page */ |
| 1309 | const int head1_6[] = {0x4f,0x67,0x67,0x53,0,0x02, |
| 1310 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1311 | 0x01,0x02,0x03,0x04,0,0,0,0, |
| 1312 | 0xff,0x7b,0x23,0x17, |
| 1313 | 1, |
| 1314 | 0}; |
| 1315 | |
| 1316 | const int head2_6[] = {0x4f,0x67,0x67,0x53,0,0x00, |
| 1317 | 0x07,0x04,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1318 | 0x01,0x02,0x03,0x04,1,0,0,0, |
| 1319 | 0x68,0x22,0x7c,0x3d, |
| 1320 | 255, |
| 1321 | 100, |
| 1322 | 255,255,255,255,255,255,255,255, |
| 1323 | 255,255,255,255,255,255,255,255, |
| 1324 | 255,255,255,255,255,255,255,255, |
| 1325 | 255,255,255,255,255,255,255,255, |
| 1326 | 255,255,255,255,255,255,255,255, |
| 1327 | 255,255,255,255,255,255,255,255, |
| 1328 | 255,255,255,255,255,255,255,255, |
| 1329 | 255,255,255,255,255,255,255,255, |
| 1330 | 255,255,255,255,255,255,255,255, |
| 1331 | 255,255,255,255,255,255,255,255, |
| 1332 | 255,255,255,255,255,255,255,255, |
| 1333 | 255,255,255,255,255,255,255,255, |
| 1334 | 255,255,255,255,255,255,255,255, |
| 1335 | 255,255,255,255,255,255,255,255, |
| 1336 | 255,255,255,255,255,255,255,255, |
| 1337 | 255,255,255,255,255,255,255,255, |
| 1338 | 255,255,255,255,255,255,255,255, |
| 1339 | 255,255,255,255,255,255,255,255, |
| 1340 | 255,255,255,255,255,255,255,255, |
| 1341 | 255,255,255,255,255,255,255,255, |
| 1342 | 255,255,255,255,255,255,255,255, |
| 1343 | 255,255,255,255,255,255,255,255, |
| 1344 | 255,255,255,255,255,255,255,255, |
| 1345 | 255,255,255,255,255,255,255,255, |
| 1346 | 255,255,255,255,255,255,255,255, |
| 1347 | 255,255,255,255,255,255,255,255, |
| 1348 | 255,255,255,255,255,255,255,255, |
| 1349 | 255,255,255,255,255,255,255,255, |
| 1350 | 255,255,255,255,255,255,255,255, |
| 1351 | 255,255,255,255,255,255,255,255, |
| 1352 | 255,255,255,255,255,255,255,255, |
| 1353 | 255,255,255,255,255,255}; |
| 1354 | |
| 1355 | const int head3_6[] = {0x4f,0x67,0x67,0x53,0,0x01, |
| 1356 | 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF, |
| 1357 | 0x01,0x02,0x03,0x04,2,0,0,0, |
| 1358 | 0xf4,0x87,0xba,0xf3, |
| 1359 | 255, |
| 1360 | 255,255,255,255,255,255,255,255, |
| 1361 | 255,255,255,255,255,255,255,255, |
| 1362 | 255,255,255,255,255,255,255,255, |
| 1363 | 255,255,255,255,255,255,255,255, |
| 1364 | 255,255,255,255,255,255,255,255, |
| 1365 | 255,255,255,255,255,255,255,255, |
| 1366 | 255,255,255,255,255,255,255,255, |
| 1367 | 255,255,255,255,255,255,255,255, |
| 1368 | 255,255,255,255,255,255,255,255, |
| 1369 | 255,255,255,255,255,255,255,255, |
| 1370 | 255,255,255,255,255,255,255,255, |
| 1371 | 255,255,255,255,255,255,255,255, |
| 1372 | 255,255,255,255,255,255,255,255, |
| 1373 | 255,255,255,255,255,255,255,255, |
| 1374 | 255,255,255,255,255,255,255,255, |
| 1375 | 255,255,255,255,255,255,255,255, |
| 1376 | 255,255,255,255,255,255,255,255, |
| 1377 | 255,255,255,255,255,255,255,255, |
| 1378 | 255,255,255,255,255,255,255,255, |
| 1379 | 255,255,255,255,255,255,255,255, |
| 1380 | 255,255,255,255,255,255,255,255, |
| 1381 | 255,255,255,255,255,255,255,255, |
| 1382 | 255,255,255,255,255,255,255,255, |
| 1383 | 255,255,255,255,255,255,255,255, |
| 1384 | 255,255,255,255,255,255,255,255, |
| 1385 | 255,255,255,255,255,255,255,255, |
| 1386 | 255,255,255,255,255,255,255,255, |
| 1387 | 255,255,255,255,255,255,255,255, |
| 1388 | 255,255,255,255,255,255,255,255, |
| 1389 | 255,255,255,255,255,255,255,255, |
| 1390 | 255,255,255,255,255,255,255,255, |
| 1391 | 255,255,255,255,255,255,255}; |
| 1392 | |
| 1393 | const int head4_6[] = {0x4f,0x67,0x67,0x53,0,0x05, |
| 1394 | 0x07,0x10,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1395 | 0x01,0x02,0x03,0x04,3,0,0,0, |
| 1396 | 0xf7,0x2f,0x6c,0x60, |
| 1397 | 5, |
| 1398 | 254,255,4,255,0}; |
| 1399 | |
| 1400 | /* packet that overspans over an entire page */ |
| 1401 | const int head1_7[] = {0x4f,0x67,0x67,0x53,0,0x02, |
| 1402 | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1403 | 0x01,0x02,0x03,0x04,0,0,0,0, |
| 1404 | 0xff,0x7b,0x23,0x17, |
| 1405 | 1, |
| 1406 | 0}; |
| 1407 | |
| 1408 | const int head2_7[] = {0x4f,0x67,0x67,0x53,0,0x00, |
| 1409 | 0x07,0x04,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1410 | 0x01,0x02,0x03,0x04,1,0,0,0, |
| 1411 | 0x68,0x22,0x7c,0x3d, |
| 1412 | 255, |
| 1413 | 100, |
| 1414 | 255,255,255,255,255,255,255,255, |
| 1415 | 255,255,255,255,255,255,255,255, |
| 1416 | 255,255,255,255,255,255,255,255, |
| 1417 | 255,255,255,255,255,255,255,255, |
| 1418 | 255,255,255,255,255,255,255,255, |
| 1419 | 255,255,255,255,255,255,255,255, |
| 1420 | 255,255,255,255,255,255,255,255, |
| 1421 | 255,255,255,255,255,255,255,255, |
| 1422 | 255,255,255,255,255,255,255,255, |
| 1423 | 255,255,255,255,255,255,255,255, |
| 1424 | 255,255,255,255,255,255,255,255, |
| 1425 | 255,255,255,255,255,255,255,255, |
| 1426 | 255,255,255,255,255,255,255,255, |
| 1427 | 255,255,255,255,255,255,255,255, |
| 1428 | 255,255,255,255,255,255,255,255, |
| 1429 | 255,255,255,255,255,255,255,255, |
| 1430 | 255,255,255,255,255,255,255,255, |
| 1431 | 255,255,255,255,255,255,255,255, |
| 1432 | 255,255,255,255,255,255,255,255, |
| 1433 | 255,255,255,255,255,255,255,255, |
| 1434 | 255,255,255,255,255,255,255,255, |
| 1435 | 255,255,255,255,255,255,255,255, |
| 1436 | 255,255,255,255,255,255,255,255, |
| 1437 | 255,255,255,255,255,255,255,255, |
| 1438 | 255,255,255,255,255,255,255,255, |
| 1439 | 255,255,255,255,255,255,255,255, |
| 1440 | 255,255,255,255,255,255,255,255, |
| 1441 | 255,255,255,255,255,255,255,255, |
| 1442 | 255,255,255,255,255,255,255,255, |
| 1443 | 255,255,255,255,255,255,255,255, |
| 1444 | 255,255,255,255,255,255,255,255, |
| 1445 | 255,255,255,255,255,255}; |
| 1446 | |
| 1447 | const int head3_7[] = {0x4f,0x67,0x67,0x53,0,0x05, |
| 1448 | 0x07,0x08,0x00,0x00,0x00,0x00,0x00,0x00, |
| 1449 | 0x01,0x02,0x03,0x04,2,0,0,0, |
| 1450 | 0xd4,0xe0,0x60,0xe5, |
| 1451 | 1, |
| 1452 | 0}; |
| 1453 | |
| 1454 | void test_pack(const int *pl, const int **headers, int byteskip, |
| 1455 | int pageskip, int packetskip){ |
| 1456 | unsigned char *data=_ogg_malloc(1024*1024); /* for scripted test cases only */ |
| 1457 | long inptr=0; |
| 1458 | long outptr=0; |
| 1459 | long deptr=0; |
| 1460 | long depacket=0; |
| 1461 | long granule_pos=7,pageno=0; |
| 1462 | int i,j,packets,pageout=pageskip; |
| 1463 | int eosflag=0; |
| 1464 | int bosflag=0; |
| 1465 | |
| 1466 | int byteskipcount=0; |
| 1467 | |
| 1468 | ogg_stream_reset(&os_en); |
| 1469 | ogg_stream_reset(&os_de); |
| 1470 | ogg_sync_reset(&oy); |
| 1471 | |
| 1472 | for(packets=0;packets<packetskip;packets++) |
| 1473 | depacket+=pl[packets]; |
| 1474 | |
| 1475 | for(packets=0;;packets++)if(pl[packets]==-1)break; |
| 1476 | |
| 1477 | for(i=0;i<packets;i++){ |
| 1478 | /* construct a test packet */ |
| 1479 | ogg_packet op; |
| 1480 | int len=pl[i]; |
| 1481 | |
| 1482 | op.packet=data+inptr; |
| 1483 | op.bytes=len; |
| 1484 | op.e_o_s=(pl[i+1]<0?1:0); |
| 1485 | op.granulepos=granule_pos; |
| 1486 | |
| 1487 | granule_pos+=1024; |
| 1488 | |
| 1489 | for(j=0;j<len;j++)data[inptr++]=i+j; |
| 1490 | |
| 1491 | /* submit the test packet */ |
| 1492 | ogg_stream_packetin(&os_en,&op); |
| 1493 | |
| 1494 | /* retrieve any finished pages */ |
| 1495 | { |
| 1496 | ogg_page og; |
| 1497 | |
| 1498 | while(ogg_stream_pageout(&os_en,&og)){ |
| 1499 | /* We have a page. Check it carefully */ |
| 1500 | |
| 1501 | fprintf(stderr,"%ld, ",pageno); |
| 1502 | |
| 1503 | if(headers[pageno]==NULL){ |
| 1504 | fprintf(stderr,"coded too many pages!\n"); |
| 1505 | exit(1); |
| 1506 | } |
| 1507 | |
| 1508 | check_page(data+outptr,headers[pageno],&og); |
| 1509 | |
| 1510 | outptr+=og.body_len; |
| 1511 | pageno++; |
| 1512 | if(pageskip){ |
| 1513 | bosflag=1; |
| 1514 | pageskip--; |
| 1515 | deptr+=og.body_len; |
| 1516 | } |
| 1517 | |
| 1518 | /* have a complete page; submit it to sync/decode */ |
| 1519 | |
| 1520 | { |
| 1521 | ogg_page og_de; |
| 1522 | ogg_packet op_de,op_de2; |
| 1523 | char *buf=ogg_sync_buffer(&oy,og.header_len+og.body_len); |
| 1524 | char *next=buf; |
| 1525 | byteskipcount+=og.header_len; |
| 1526 | if(byteskipcount>byteskip){ |
| 1527 | memcpy(next,og.header,byteskipcount-byteskip); |
| 1528 | next+=byteskipcount-byteskip; |
| 1529 | byteskipcount=byteskip; |
| 1530 | } |
| 1531 | |
| 1532 | byteskipcount+=og.body_len; |
| 1533 | if(byteskipcount>byteskip){ |
| 1534 | memcpy(next,og.body,byteskipcount-byteskip); |
| 1535 | next+=byteskipcount-byteskip; |
| 1536 | byteskipcount=byteskip; |
| 1537 | } |
| 1538 | |
| 1539 | ogg_sync_wrote(&oy,next-buf); |
| 1540 | |
| 1541 | while(1){ |
| 1542 | int ret=ogg_sync_pageout(&oy,&og_de); |
| 1543 | if(ret==0)break; |
| 1544 | if(ret<0)continue; |
| 1545 | /* got a page. Happy happy. Verify that it's good. */ |
| 1546 | |
| 1547 | fprintf(stderr,"(%ld), ",pageout); |
| 1548 | |
| 1549 | check_page(data+deptr,headers[pageout],&og_de); |
| 1550 | deptr+=og_de.body_len; |
| 1551 | pageout++; |
| 1552 | |
| 1553 | /* submit it to deconstitution */ |
| 1554 | ogg_stream_pagein(&os_de,&og_de); |
| 1555 | |
| 1556 | /* packets out? */ |
| 1557 | while(ogg_stream_packetpeek(&os_de,&op_de2)>0){ |
| 1558 | ogg_stream_packetpeek(&os_de,NULL); |
| 1559 | ogg_stream_packetout(&os_de,&op_de); /* just catching them all */ |
| 1560 | |
| 1561 | /* verify peek and out match */ |
| 1562 | if(memcmp(&op_de,&op_de2,sizeof(op_de))){ |
| 1563 | fprintf(stderr,"packetout != packetpeek! pos=%ld\n", |
| 1564 | depacket); |
| 1565 | exit(1); |
| 1566 | } |
| 1567 | |
| 1568 | /* verify the packet! */ |
| 1569 | /* check data */ |
| 1570 | if(memcmp(data+depacket,op_de.packet,op_de.bytes)){ |
| 1571 | fprintf(stderr,"packet data mismatch in decode! pos=%ld\n", |
| 1572 | depacket); |
| 1573 | exit(1); |
| 1574 | } |
| 1575 | /* check bos flag */ |
| 1576 | if(bosflag==0 && op_de.b_o_s==0){ |
| 1577 | fprintf(stderr,"b_o_s flag not set on packet!\n"); |
| 1578 | exit(1); |
| 1579 | } |
| 1580 | if(bosflag && op_de.b_o_s){ |
| 1581 | fprintf(stderr,"b_o_s flag incorrectly set on packet!\n"); |
| 1582 | exit(1); |
| 1583 | } |
| 1584 | bosflag=1; |
| 1585 | depacket+=op_de.bytes; |
| 1586 | |
| 1587 | /* check eos flag */ |
| 1588 | if(eosflag){ |
| 1589 | fprintf(stderr,"Multiple decoded packets with eos flag!\n"); |
| 1590 | exit(1); |
| 1591 | } |
| 1592 | |
| 1593 | if(op_de.e_o_s)eosflag=1; |
| 1594 | |
| 1595 | /* check granulepos flag */ |
| 1596 | if(op_de.granulepos!=-1){ |
| 1597 | fprintf(stderr," granule:%ld ",(long)op_de.granulepos); |
| 1598 | } |
| 1599 | } |
| 1600 | } |
| 1601 | } |
| 1602 | } |
| 1603 | } |
| 1604 | } |
| 1605 | _ogg_free(data); |
| 1606 | if(headers[pageno]!=NULL){ |
| 1607 | fprintf(stderr,"did not write last page!\n"); |
| 1608 | exit(1); |
| 1609 | } |
| 1610 | if(headers[pageout]!=NULL){ |
| 1611 | fprintf(stderr,"did not decode last page!\n"); |
| 1612 | exit(1); |
| 1613 | } |
| 1614 | if(inptr!=outptr){ |
| 1615 | fprintf(stderr,"encoded page data incomplete!\n"); |
| 1616 | exit(1); |
| 1617 | } |
| 1618 | if(inptr!=deptr){ |
| 1619 | fprintf(stderr,"decoded page data incomplete!\n"); |
| 1620 | exit(1); |
| 1621 | } |
| 1622 | if(inptr!=depacket){ |
| 1623 | fprintf(stderr,"decoded packet data incomplete!\n"); |
| 1624 | exit(1); |
| 1625 | } |
| 1626 | if(!eosflag){ |
| 1627 | fprintf(stderr,"Never got a packet with EOS set!\n"); |
| 1628 | exit(1); |
| 1629 | } |
| 1630 | fprintf(stderr,"ok.\n"); |
| 1631 | } |
| 1632 | |
| 1633 | int main(void){ |
| 1634 | |
| 1635 | ogg_stream_init(&os_en,0x04030201); |
| 1636 | ogg_stream_init(&os_de,0x04030201); |
| 1637 | ogg_sync_init(&oy); |
| 1638 | |
| 1639 | /* Exercise each code path in the framing code. Also verify that |
| 1640 | the checksums are working. */ |
| 1641 | |
| 1642 | { |
| 1643 | /* 17 only */ |
| 1644 | const int packets[]={17, -1}; |
| 1645 | const int *headret[]={head1_0,NULL}; |
| 1646 | |
| 1647 | fprintf(stderr,"testing single page encoding... "); |
| 1648 | test_pack(packets,headret,0,0,0); |
| 1649 | } |
| 1650 | |
| 1651 | { |
| 1652 | /* 17, 254, 255, 256, 500, 510, 600 byte, pad */ |
| 1653 | const int packets[]={17, 254, 255, 256, 500, 510, 600, -1}; |
| 1654 | const int *headret[]={head1_1,head2_1,NULL}; |
| 1655 | |
| 1656 | fprintf(stderr,"testing basic page encoding... "); |
| 1657 | test_pack(packets,headret,0,0,0); |
| 1658 | } |
| 1659 | |
| 1660 | { |
| 1661 | /* nil packets; beginning,middle,end */ |
| 1662 | const int packets[]={0,17, 254, 255, 0, 256, 0, 500, 510, 600, 0, -1}; |
| 1663 | const int *headret[]={head1_2,head2_2,NULL}; |
| 1664 | |
| 1665 | fprintf(stderr,"testing basic nil packets... "); |
| 1666 | test_pack(packets,headret,0,0,0); |
| 1667 | } |
| 1668 | |
| 1669 | { |
| 1670 | /* large initial packet */ |
| 1671 | const int packets[]={4345,259,255,-1}; |
| 1672 | const int *headret[]={head1_3,head2_3,NULL}; |
| 1673 | |
| 1674 | fprintf(stderr,"testing initial-packet lacing > 4k... "); |
| 1675 | test_pack(packets,headret,0,0,0); |
| 1676 | } |
| 1677 | |
| 1678 | { |
| 1679 | /* continuing packet test; with page spill expansion, we have to |
| 1680 | overflow the lacing table. */ |
| 1681 | const int packets[]={0,65500,259,255,-1}; |
| 1682 | const int *headret[]={head1_4,head2_4,head3_4,NULL}; |
| 1683 | |
| 1684 | fprintf(stderr,"testing single packet page span... "); |
| 1685 | test_pack(packets,headret,0,0,0); |
| 1686 | } |
| 1687 | |
| 1688 | { |
| 1689 | /* spill expand packet test */ |
| 1690 | const int packets[]={0,4345,259,255,0,0,-1}; |
| 1691 | const int *headret[]={head1_4b,head2_4b,head3_4b,NULL}; |
| 1692 | |
| 1693 | fprintf(stderr,"testing page spill expansion... "); |
| 1694 | test_pack(packets,headret,0,0,0); |
| 1695 | } |
| 1696 | |
| 1697 | /* page with the 255 segment limit */ |
| 1698 | { |
| 1699 | |
| 1700 | const int packets[]={0,10,10,10,10,10,10,10,10, |
| 1701 | 10,10,10,10,10,10,10,10, |
| 1702 | 10,10,10,10,10,10,10,10, |
| 1703 | 10,10,10,10,10,10,10,10, |
| 1704 | 10,10,10,10,10,10,10,10, |
| 1705 | 10,10,10,10,10,10,10,10, |
| 1706 | 10,10,10,10,10,10,10,10, |
| 1707 | 10,10,10,10,10,10,10,10, |
| 1708 | 10,10,10,10,10,10,10,10, |
| 1709 | 10,10,10,10,10,10,10,10, |
| 1710 | 10,10,10,10,10,10,10,10, |
| 1711 | 10,10,10,10,10,10,10,10, |
| 1712 | 10,10,10,10,10,10,10,10, |
| 1713 | 10,10,10,10,10,10,10,10, |
| 1714 | 10,10,10,10,10,10,10,10, |
| 1715 | 10,10,10,10,10,10,10,10, |
| 1716 | 10,10,10,10,10,10,10,10, |
| 1717 | 10,10,10,10,10,10,10,10, |
| 1718 | 10,10,10,10,10,10,10,10, |
| 1719 | 10,10,10,10,10,10,10,10, |
| 1720 | 10,10,10,10,10,10,10,10, |
| 1721 | 10,10,10,10,10,10,10,10, |
| 1722 | 10,10,10,10,10,10,10,10, |
| 1723 | 10,10,10,10,10,10,10,10, |
| 1724 | 10,10,10,10,10,10,10,10, |
| 1725 | 10,10,10,10,10,10,10,10, |
| 1726 | 10,10,10,10,10,10,10,10, |
| 1727 | 10,10,10,10,10,10,10,10, |
| 1728 | 10,10,10,10,10,10,10,10, |
| 1729 | 10,10,10,10,10,10,10,10, |
| 1730 | 10,10,10,10,10,10,10,10, |
| 1731 | 10,10,10,10,10,10,10,50,-1}; |
| 1732 | const int *headret[]={head1_5,head2_5,head3_5,NULL}; |
| 1733 | |
| 1734 | fprintf(stderr,"testing max packet segments... "); |
| 1735 | test_pack(packets,headret,0,0,0); |
| 1736 | } |
| 1737 | |
| 1738 | { |
| 1739 | /* packet that overspans over an entire page */ |
| 1740 | const int packets[]={0,100,130049,259,255,-1}; |
| 1741 | const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL}; |
| 1742 | |
| 1743 | fprintf(stderr,"testing very large packets... "); |
| 1744 | test_pack(packets,headret,0,0,0); |
| 1745 | } |
| 1746 | |
| 1747 | { |
| 1748 | /* test for the libogg 1.1.1 resync in large continuation bug |
| 1749 | found by Josh Coalson) */ |
| 1750 | const int packets[]={0,100,130049,259,255,-1}; |
| 1751 | const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL}; |
| 1752 | |
| 1753 | fprintf(stderr,"testing continuation resync in very large packets... "); |
| 1754 | test_pack(packets,headret,100,2,3); |
| 1755 | } |
| 1756 | |
| 1757 | { |
| 1758 | /* term only page. why not? */ |
| 1759 | const int packets[]={0,100,64770,-1}; |
| 1760 | const int *headret[]={head1_7,head2_7,head3_7,NULL}; |
| 1761 | |
| 1762 | fprintf(stderr,"testing zero data page (1 nil packet)... "); |
| 1763 | test_pack(packets,headret,0,0,0); |
| 1764 | } |
| 1765 | |
| 1766 | |
| 1767 | |
| 1768 | { |
| 1769 | /* build a bunch of pages for testing */ |
| 1770 | unsigned char *data=_ogg_malloc(1024*1024); |
| 1771 | int pl[]={0, 1,1,98,4079, 1,1,2954,2057, 76,34,912,0,234,1000,1000, 1000,300,-1}; |
| 1772 | int inptr=0,i,j; |
| 1773 | ogg_page og[5]; |
| 1774 | |
| 1775 | ogg_stream_reset(&os_en); |
| 1776 | |
| 1777 | for(i=0;pl[i]!=-1;i++){ |
| 1778 | ogg_packet op; |
| 1779 | int len=pl[i]; |
| 1780 | |
| 1781 | op.packet=data+inptr; |
| 1782 | op.bytes=len; |
| 1783 | op.e_o_s=(pl[i+1]<0?1:0); |
| 1784 | op.granulepos=(i+1)*1000; |
| 1785 | |
| 1786 | for(j=0;j<len;j++)data[inptr++]=i+j; |
| 1787 | ogg_stream_packetin(&os_en,&op); |
| 1788 | } |
| 1789 | |
| 1790 | _ogg_free(data); |
| 1791 | |
| 1792 | /* retrieve finished pages */ |
| 1793 | for(i=0;i<5;i++){ |
| 1794 | if(ogg_stream_pageout(&os_en,&og[i])==0){ |
| 1795 | fprintf(stderr,"Too few pages output building sync tests!\n"); |
| 1796 | exit(1); |
| 1797 | } |
| 1798 | copy_page(&og[i]); |
| 1799 | } |
| 1800 | |
| 1801 | /* Test lost pages on pagein/packetout: no rollback */ |
| 1802 | { |
| 1803 | ogg_page temp; |
| 1804 | ogg_packet test; |
| 1805 | |
| 1806 | fprintf(stderr,"Testing loss of pages... "); |
| 1807 | |
| 1808 | ogg_sync_reset(&oy); |
| 1809 | ogg_stream_reset(&os_de); |
| 1810 | for(i=0;i<5;i++){ |
| 1811 | memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header, |
| 1812 | og[i].header_len); |
| 1813 | ogg_sync_wrote(&oy,og[i].header_len); |
| 1814 | memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len); |
| 1815 | ogg_sync_wrote(&oy,og[i].body_len); |
| 1816 | } |
| 1817 | |
| 1818 | ogg_sync_pageout(&oy,&temp); |
| 1819 | ogg_stream_pagein(&os_de,&temp); |
| 1820 | ogg_sync_pageout(&oy,&temp); |
| 1821 | ogg_stream_pagein(&os_de,&temp); |
| 1822 | ogg_sync_pageout(&oy,&temp); |
| 1823 | /* skip */ |
| 1824 | ogg_sync_pageout(&oy,&temp); |
| 1825 | ogg_stream_pagein(&os_de,&temp); |
| 1826 | |
| 1827 | /* do we get the expected results/packets? */ |
| 1828 | |
| 1829 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1830 | checkpacket(&test,0,0,0); |
| 1831 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1832 | checkpacket(&test,1,1,-1); |
| 1833 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1834 | checkpacket(&test,1,2,-1); |
| 1835 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1836 | checkpacket(&test,98,3,-1); |
| 1837 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1838 | checkpacket(&test,4079,4,5000); |
| 1839 | if(ogg_stream_packetout(&os_de,&test)!=-1){ |
| 1840 | fprintf(stderr,"Error: loss of page did not return error\n"); |
| 1841 | exit(1); |
| 1842 | } |
| 1843 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1844 | checkpacket(&test,76,9,-1); |
| 1845 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1846 | checkpacket(&test,34,10,-1); |
| 1847 | fprintf(stderr,"ok.\n"); |
| 1848 | } |
| 1849 | |
| 1850 | /* Test lost pages on pagein/packetout: rollback with continuation */ |
| 1851 | { |
| 1852 | ogg_page temp; |
| 1853 | ogg_packet test; |
| 1854 | |
| 1855 | fprintf(stderr,"Testing loss of pages (rollback required)... "); |
| 1856 | |
| 1857 | ogg_sync_reset(&oy); |
| 1858 | ogg_stream_reset(&os_de); |
| 1859 | for(i=0;i<5;i++){ |
| 1860 | memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header, |
| 1861 | og[i].header_len); |
| 1862 | ogg_sync_wrote(&oy,og[i].header_len); |
| 1863 | memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len); |
| 1864 | ogg_sync_wrote(&oy,og[i].body_len); |
| 1865 | } |
| 1866 | |
| 1867 | ogg_sync_pageout(&oy,&temp); |
| 1868 | ogg_stream_pagein(&os_de,&temp); |
| 1869 | ogg_sync_pageout(&oy,&temp); |
| 1870 | ogg_stream_pagein(&os_de,&temp); |
| 1871 | ogg_sync_pageout(&oy,&temp); |
| 1872 | ogg_stream_pagein(&os_de,&temp); |
| 1873 | ogg_sync_pageout(&oy,&temp); |
| 1874 | /* skip */ |
| 1875 | ogg_sync_pageout(&oy,&temp); |
| 1876 | ogg_stream_pagein(&os_de,&temp); |
| 1877 | |
| 1878 | /* do we get the expected results/packets? */ |
| 1879 | |
| 1880 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1881 | checkpacket(&test,0,0,0); |
| 1882 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1883 | checkpacket(&test,1,1,-1); |
| 1884 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1885 | checkpacket(&test,1,2,-1); |
| 1886 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1887 | checkpacket(&test,98,3,-1); |
| 1888 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1889 | checkpacket(&test,4079,4,5000); |
| 1890 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1891 | checkpacket(&test,1,5,-1); |
| 1892 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1893 | checkpacket(&test,1,6,-1); |
| 1894 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1895 | checkpacket(&test,2954,7,-1); |
| 1896 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1897 | checkpacket(&test,2057,8,9000); |
| 1898 | if(ogg_stream_packetout(&os_de,&test)!=-1){ |
| 1899 | fprintf(stderr,"Error: loss of page did not return error\n"); |
| 1900 | exit(1); |
| 1901 | } |
| 1902 | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
| 1903 | checkpacket(&test,300,17,18000); |
| 1904 | fprintf(stderr,"ok.\n"); |
| 1905 | } |
| 1906 | |
| 1907 | /* the rest only test sync */ |
| 1908 | { |
| 1909 | ogg_page og_de; |
| 1910 | /* Test fractional page inputs: incomplete capture */ |
| 1911 | fprintf(stderr,"Testing sync on partial inputs... "); |
| 1912 | ogg_sync_reset(&oy); |
| 1913 | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, |
| 1914 | 3); |
| 1915 | ogg_sync_wrote(&oy,3); |
| 1916 | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
| 1917 | |
| 1918 | /* Test fractional page inputs: incomplete fixed header */ |
| 1919 | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+3, |
| 1920 | 20); |
| 1921 | ogg_sync_wrote(&oy,20); |
| 1922 | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
| 1923 | |
| 1924 | /* Test fractional page inputs: incomplete header */ |
| 1925 | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+23, |
| 1926 | 5); |
| 1927 | ogg_sync_wrote(&oy,5); |
| 1928 | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
| 1929 | |
| 1930 | /* Test fractional page inputs: incomplete body */ |
| 1931 | |
| 1932 | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+28, |
| 1933 | og[1].header_len-28); |
| 1934 | ogg_sync_wrote(&oy,og[1].header_len-28); |
| 1935 | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
| 1936 | |
| 1937 | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,1000); |
| 1938 | ogg_sync_wrote(&oy,1000); |
| 1939 | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
| 1940 | |
| 1941 | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body+1000, |
| 1942 | og[1].body_len-1000); |
| 1943 | ogg_sync_wrote(&oy,og[1].body_len-1000); |
| 1944 | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
| 1945 | |
| 1946 | fprintf(stderr,"ok.\n"); |
| 1947 | } |
| 1948 | |
| 1949 | /* Test fractional page inputs: page + incomplete capture */ |
| 1950 | { |
| 1951 | ogg_page og_de; |
| 1952 | fprintf(stderr,"Testing sync on 1+partial inputs... "); |
| 1953 | ogg_sync_reset(&oy); |
| 1954 | |
| 1955 | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, |
| 1956 | og[1].header_len); |
| 1957 | ogg_sync_wrote(&oy,og[1].header_len); |
| 1958 | |
| 1959 | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, |
| 1960 | og[1].body_len); |
| 1961 | ogg_sync_wrote(&oy,og[1].body_len); |
| 1962 | |
| 1963 | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, |
| 1964 | 20); |
| 1965 | ogg_sync_wrote(&oy,20); |
| 1966 | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
| 1967 | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
| 1968 | |
| 1969 | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+20, |
| 1970 | og[1].header_len-20); |
| 1971 | ogg_sync_wrote(&oy,og[1].header_len-20); |
| 1972 | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, |
| 1973 | og[1].body_len); |
| 1974 | ogg_sync_wrote(&oy,og[1].body_len); |
| 1975 | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
| 1976 | |
| 1977 | fprintf(stderr,"ok.\n"); |
| 1978 | } |
| 1979 | |
| 1980 | /* Test recapture: garbage + page */ |
| 1981 | { |
| 1982 | ogg_page og_de; |
| 1983 | fprintf(stderr,"Testing search for capture... "); |
| 1984 | ogg_sync_reset(&oy); |
| 1985 | |
| 1986 | /* 'garbage' */ |
| 1987 | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, |
| 1988 | og[1].body_len); |
| 1989 | ogg_sync_wrote(&oy,og[1].body_len); |
| 1990 | |
| 1991 | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, |
| 1992 | og[1].header_len); |
| 1993 | ogg_sync_wrote(&oy,og[1].header_len); |
| 1994 | |
| 1995 | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, |
| 1996 | og[1].body_len); |
| 1997 | ogg_sync_wrote(&oy,og[1].body_len); |
| 1998 | |
| 1999 | memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header, |
| 2000 | 20); |
| 2001 | ogg_sync_wrote(&oy,20); |
| 2002 | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
| 2003 | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
| 2004 | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
| 2005 | |
| 2006 | memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header+20, |
| 2007 | og[2].header_len-20); |
| 2008 | ogg_sync_wrote(&oy,og[2].header_len-20); |
| 2009 | memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body, |
| 2010 | og[2].body_len); |
| 2011 | ogg_sync_wrote(&oy,og[2].body_len); |
| 2012 | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
| 2013 | |
| 2014 | fprintf(stderr,"ok.\n"); |
| 2015 | } |
| 2016 | |
| 2017 | /* Test recapture: page + garbage + page */ |
| 2018 | { |
| 2019 | ogg_page og_de; |
| 2020 | fprintf(stderr,"Testing recapture... "); |
| 2021 | ogg_sync_reset(&oy); |
| 2022 | |
| 2023 | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, |
| 2024 | og[1].header_len); |
| 2025 | ogg_sync_wrote(&oy,og[1].header_len); |
| 2026 | |
| 2027 | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, |
| 2028 | og[1].body_len); |
| 2029 | ogg_sync_wrote(&oy,og[1].body_len); |
| 2030 | |
| 2031 | memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header, |
| 2032 | og[2].header_len); |
| 2033 | ogg_sync_wrote(&oy,og[2].header_len); |
| 2034 | |
| 2035 | memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header, |
| 2036 | og[2].header_len); |
| 2037 | ogg_sync_wrote(&oy,og[2].header_len); |
| 2038 | |
| 2039 | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
| 2040 | |
| 2041 | memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body, |
| 2042 | og[2].body_len-5); |
| 2043 | ogg_sync_wrote(&oy,og[2].body_len-5); |
| 2044 | |
| 2045 | memcpy(ogg_sync_buffer(&oy,og[3].header_len),og[3].header, |
| 2046 | og[3].header_len); |
| 2047 | ogg_sync_wrote(&oy,og[3].header_len); |
| 2048 | |
| 2049 | memcpy(ogg_sync_buffer(&oy,og[3].body_len),og[3].body, |
| 2050 | og[3].body_len); |
| 2051 | ogg_sync_wrote(&oy,og[3].body_len); |
| 2052 | |
| 2053 | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
| 2054 | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
| 2055 | |
| 2056 | fprintf(stderr,"ok.\n"); |
| 2057 | } |
| 2058 | |
| 2059 | /* Free page data that was previously copied */ |
| 2060 | { |
| 2061 | for(i=0;i<5;i++){ |
| 2062 | free_page(&og[i]); |
| 2063 | } |
| 2064 | } |
| 2065 | } |
| 2066 | |
| 2067 | return(0); |
| 2068 | } |
| 2069 | |
| 2070 | #endif |
| 2071 | |
| 2072 | |
| 2073 | |
| 2074 | |