Line | Count | Source (jump to first uncovered line) |
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 1994-2018 * |
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 | | |
16 | | note: The CRC code is directly derived from public domain code by |
17 | | Ross Williams (ross@guest.adelaide.edu.au). See docs/framing.html |
18 | | for details. |
19 | | |
20 | | ********************************************************************/ |
21 | | |
22 | | #ifdef HAVE_CONFIG_H |
23 | | #include "config.h" |
24 | | #endif |
25 | | |
26 | | #include <stdlib.h> |
27 | | #include <limits.h> |
28 | | #include <string.h> |
29 | | #include <ogg/ogg.h> |
30 | | |
31 | | /* A complete description of Ogg framing exists in docs/framing.html */ |
32 | | |
33 | 9.56k | int ogg_page_version(const ogg_page *og){ |
34 | 9.56k | return((int)(og->header[4])); |
35 | 9.56k | } |
36 | | |
37 | 9.56k | int ogg_page_continued(const ogg_page *og){ |
38 | 9.56k | return((int)(og->header[5]&0x01)); |
39 | 9.56k | } |
40 | | |
41 | 9.56k | int ogg_page_bos(const ogg_page *og){ |
42 | 9.56k | return((int)(og->header[5]&0x02)); |
43 | 9.56k | } |
44 | | |
45 | 9.56k | int ogg_page_eos(const ogg_page *og){ |
46 | 9.56k | return((int)(og->header[5]&0x04)); |
47 | 9.56k | } |
48 | | |
49 | 9.56k | ogg_int64_t ogg_page_granulepos(const ogg_page *og){ |
50 | 9.56k | unsigned char *page=og->header; |
51 | 9.56k | ogg_uint64_t granulepos=page[13]&(0xff); |
52 | 9.56k | granulepos= (granulepos<<8)|(page[12]&0xff); |
53 | 9.56k | granulepos= (granulepos<<8)|(page[11]&0xff); |
54 | 9.56k | granulepos= (granulepos<<8)|(page[10]&0xff); |
55 | 9.56k | granulepos= (granulepos<<8)|(page[9]&0xff); |
56 | 9.56k | granulepos= (granulepos<<8)|(page[8]&0xff); |
57 | 9.56k | granulepos= (granulepos<<8)|(page[7]&0xff); |
58 | 9.56k | granulepos= (granulepos<<8)|(page[6]&0xff); |
59 | 9.56k | return((ogg_int64_t)granulepos); |
60 | 9.56k | } |
61 | | |
62 | 10.2k | int ogg_page_serialno(const ogg_page *og){ |
63 | 10.2k | return((int)((ogg_uint32_t)og->header[14]) | |
64 | 10.2k | ((ogg_uint32_t)og->header[15]<<8) | |
65 | 10.2k | ((ogg_uint32_t)og->header[16]<<16) | |
66 | 10.2k | ((ogg_uint32_t)og->header[17]<<24)); |
67 | 10.2k | } |
68 | | |
69 | 9.56k | long ogg_page_pageno(const ogg_page *og){ |
70 | 9.56k | return((long)((ogg_uint32_t)og->header[18]) | |
71 | 9.56k | ((ogg_uint32_t)og->header[19]<<8) | |
72 | 9.56k | ((ogg_uint32_t)og->header[20]<<16) | |
73 | 9.56k | ((ogg_uint32_t)og->header[21]<<24)); |
74 | 9.56k | } |
75 | | |
76 | | |
77 | | |
78 | | /* returns the number of packets that are completed on this page (if |
79 | | the leading packet is begun on a previous page, but ends on this |
80 | | page, it's counted */ |
81 | | |
82 | | /* NOTE: |
83 | | If a page consists of a packet begun on a previous page, and a new |
84 | | packet begun (but not completed) on this page, the return will be: |
85 | | ogg_page_packets(page) ==1, |
86 | | ogg_page_continued(page) !=0 |
87 | | |
88 | | If a page happens to be a single packet that was begun on a |
89 | | previous page, and spans to the next page (in the case of a three or |
90 | | more page packet), the return will be: |
91 | | ogg_page_packets(page) ==0, |
92 | | ogg_page_continued(page) !=0 |
93 | | */ |
94 | | |
95 | 0 | int ogg_page_packets(const ogg_page *og){ |
96 | 0 | int i,n=og->header[26],count=0; |
97 | 0 | for(i=0;i<n;i++) |
98 | 0 | if(og->header[27+i]<255)count++; |
99 | 0 | return(count); |
100 | 0 | } |
101 | | |
102 | | |
103 | | #if 0 |
104 | | /* helper to initialize lookup for direct-table CRC (illustrative; we |
105 | | use the static init in crctable.h) */ |
106 | | |
107 | | static void _ogg_crc_init(){ |
108 | | int i, j; |
109 | | ogg_uint32_t polynomial, crc; |
110 | | polynomial = 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 | | for (i = 0; i <= 0xFF; i++){ |
115 | | crc = i << 24; |
116 | | |
117 | | for (j = 0; j < 8; j++) |
118 | | crc = (crc << 1) ^ (crc & (1 << 31) ? polynomial : 0); |
119 | | |
120 | | crc_lookup[0][i] = crc; |
121 | | } |
122 | | |
123 | | for (i = 0; i <= 0xFF; i++) |
124 | | for (j = 1; j < 8; j++) |
125 | | crc_lookup[j][i] = crc_lookup[0][(crc_lookup[j - 1][i] >> 24) & 0xFF] ^ (crc_lookup[j - 1][i] << 8); |
126 | | } |
127 | | #endif |
128 | | |
129 | | #include "crctable.h" |
130 | | |
131 | | /* init the encode/decode logical stream state */ |
132 | | |
133 | 891 | int ogg_stream_init(ogg_stream_state *os,int serialno){ |
134 | 891 | if(os){ |
135 | 891 | memset(os,0,sizeof(*os)); |
136 | 891 | os->body_storage=16*1024; |
137 | 891 | os->lacing_storage=1024; |
138 | | |
139 | 891 | os->body_data=_ogg_malloc(os->body_storage*sizeof(*os->body_data)); |
140 | 891 | os->lacing_vals=_ogg_malloc(os->lacing_storage*sizeof(*os->lacing_vals)); |
141 | 891 | os->granule_vals=_ogg_malloc(os->lacing_storage*sizeof(*os->granule_vals)); |
142 | | |
143 | 891 | if(!os->body_data || !os->lacing_vals || !os->granule_vals){ |
144 | 0 | ogg_stream_clear(os); |
145 | 0 | return -1; |
146 | 0 | } |
147 | | |
148 | 891 | os->serialno=serialno; |
149 | | |
150 | 891 | return(0); |
151 | 891 | } |
152 | 0 | return(-1); |
153 | 891 | } |
154 | | |
155 | | /* async/delayed error detection for the ogg_stream_state */ |
156 | 59.6k | int ogg_stream_check(ogg_stream_state *os){ |
157 | 59.6k | if(!os || !os->body_data) return -1; |
158 | 59.6k | return 0; |
159 | 59.6k | } |
160 | | |
161 | | /* _clear does not free os, only the non-flat storage within */ |
162 | 891 | int ogg_stream_clear(ogg_stream_state *os){ |
163 | 891 | if(os){ |
164 | 891 | if(os->body_data)_ogg_free(os->body_data); |
165 | 891 | if(os->lacing_vals)_ogg_free(os->lacing_vals); |
166 | 891 | if(os->granule_vals)_ogg_free(os->granule_vals); |
167 | | |
168 | 891 | memset(os,0,sizeof(*os)); |
169 | 891 | } |
170 | 891 | return(0); |
171 | 891 | } |
172 | | |
173 | 0 | int ogg_stream_destroy(ogg_stream_state *os){ |
174 | 0 | if(os){ |
175 | 0 | ogg_stream_clear(os); |
176 | 0 | _ogg_free(os); |
177 | 0 | } |
178 | 0 | return(0); |
179 | 0 | } |
180 | | |
181 | | /* Helpers for ogg_stream_encode; this keeps the structure and |
182 | | what's happening fairly clear */ |
183 | | |
184 | 4.19k | static int _os_body_expand(ogg_stream_state *os,long needed){ |
185 | 4.19k | if(os->body_storage-needed<=os->body_fill){ |
186 | 46 | long body_storage; |
187 | 46 | void *ret; |
188 | 46 | if(os->body_storage>LONG_MAX-needed){ |
189 | 0 | ogg_stream_clear(os); |
190 | 0 | return -1; |
191 | 0 | } |
192 | 46 | body_storage=os->body_storage+needed; |
193 | 46 | if(body_storage<LONG_MAX-1024)body_storage+=1024; |
194 | 46 | ret=_ogg_realloc(os->body_data,body_storage*sizeof(*os->body_data)); |
195 | 46 | if(!ret){ |
196 | 0 | ogg_stream_clear(os); |
197 | 0 | return -1; |
198 | 0 | } |
199 | 46 | os->body_storage=body_storage; |
200 | 46 | os->body_data=ret; |
201 | 46 | } |
202 | 4.19k | return 0; |
203 | 4.19k | } |
204 | | |
205 | 5.78k | static int _os_lacing_expand(ogg_stream_state *os,long needed){ |
206 | 5.78k | if(os->lacing_storage-needed<=os->lacing_fill){ |
207 | 0 | long lacing_storage; |
208 | 0 | void *ret; |
209 | 0 | if(os->lacing_storage>LONG_MAX-needed){ |
210 | 0 | ogg_stream_clear(os); |
211 | 0 | return -1; |
212 | 0 | } |
213 | 0 | lacing_storage=os->lacing_storage+needed; |
214 | 0 | if(lacing_storage<LONG_MAX-32)lacing_storage+=32; |
215 | 0 | ret=_ogg_realloc(os->lacing_vals,lacing_storage*sizeof(*os->lacing_vals)); |
216 | 0 | if(!ret){ |
217 | 0 | ogg_stream_clear(os); |
218 | 0 | return -1; |
219 | 0 | } |
220 | 0 | os->lacing_vals=ret; |
221 | 0 | ret=_ogg_realloc(os->granule_vals,lacing_storage* |
222 | 0 | sizeof(*os->granule_vals)); |
223 | 0 | if(!ret){ |
224 | 0 | ogg_stream_clear(os); |
225 | 0 | return -1; |
226 | 0 | } |
227 | 0 | os->granule_vals=ret; |
228 | 0 | os->lacing_storage=lacing_storage; |
229 | 0 | } |
230 | 5.78k | return 0; |
231 | 5.78k | } |
232 | | |
233 | | /* checksum the page */ |
234 | | /* Direct table CRC; note that this will be faster in the future if we |
235 | | perform the checksum simultaneously with other copies */ |
236 | | |
237 | 19.1k | static ogg_uint32_t _os_update_crc(ogg_uint32_t crc, unsigned char *buffer, int size){ |
238 | 1.04M | while (size>=8){ |
239 | 1.02M | crc^=((ogg_uint32_t)buffer[0]<<24)|((ogg_uint32_t)buffer[1]<<16)|((ogg_uint32_t)buffer[2]<<8)|((ogg_uint32_t)buffer[3]); |
240 | | |
241 | 1.02M | crc=crc_lookup[7][ crc>>24 ]^crc_lookup[6][(crc>>16)&0xFF]^ |
242 | 1.02M | crc_lookup[5][(crc>> 8)&0xFF]^crc_lookup[4][ crc &0xFF]^ |
243 | 1.02M | crc_lookup[3][buffer[4] ]^crc_lookup[2][buffer[5] ]^ |
244 | 1.02M | crc_lookup[1][buffer[6] ]^crc_lookup[0][buffer[7] ]; |
245 | | |
246 | 1.02M | buffer+=8; |
247 | 1.02M | size-=8; |
248 | 1.02M | } |
249 | | |
250 | 75.8k | while (size--) |
251 | 56.7k | crc=(crc<<8)^crc_lookup[0][((crc >> 24)&0xff)^*buffer++]; |
252 | 19.1k | return crc; |
253 | 19.1k | } |
254 | | |
255 | 9.56k | void ogg_page_checksum_set(ogg_page *og){ |
256 | 9.56k | if(og){ |
257 | 9.56k | ogg_uint32_t crc_reg=0; |
258 | | |
259 | | /* safety; needed for API behavior, but not framing code */ |
260 | 9.56k | og->header[22]=0; |
261 | 9.56k | og->header[23]=0; |
262 | 9.56k | og->header[24]=0; |
263 | 9.56k | og->header[25]=0; |
264 | | |
265 | 9.56k | crc_reg=_os_update_crc(crc_reg,og->header,og->header_len); |
266 | 9.56k | crc_reg=_os_update_crc(crc_reg,og->body,og->body_len); |
267 | | |
268 | 9.56k | og->header[22]=(unsigned char)(crc_reg&0xff); |
269 | 9.56k | og->header[23]=(unsigned char)((crc_reg>>8)&0xff); |
270 | 9.56k | og->header[24]=(unsigned char)((crc_reg>>16)&0xff); |
271 | 9.56k | og->header[25]=(unsigned char)((crc_reg>>24)&0xff); |
272 | 9.56k | } |
273 | 9.56k | } |
274 | | |
275 | | /* submit data to the internal buffer of the framing engine */ |
276 | | int ogg_stream_iovecin(ogg_stream_state *os, ogg_iovec_t *iov, int count, |
277 | 0 | long e_o_s, ogg_int64_t granulepos){ |
278 | |
|
279 | 0 | long bytes = 0, lacing_vals; |
280 | 0 | int i; |
281 | |
|
282 | 0 | if(ogg_stream_check(os)) return -1; |
283 | 0 | if(!iov) return 0; |
284 | | |
285 | 0 | for (i = 0; i < count; ++i){ |
286 | 0 | if(iov[i].iov_len>LONG_MAX) return -1; |
287 | 0 | if(bytes>LONG_MAX-(long)iov[i].iov_len) return -1; |
288 | 0 | bytes += (long)iov[i].iov_len; |
289 | 0 | } |
290 | 0 | lacing_vals=bytes/255+1; |
291 | |
|
292 | 0 | if(os->body_returned){ |
293 | | /* advance packet data according to the body_returned pointer. We |
294 | | had to keep it around to return a pointer into the buffer last |
295 | | call */ |
296 | |
|
297 | 0 | os->body_fill-=os->body_returned; |
298 | 0 | if(os->body_fill) |
299 | 0 | memmove(os->body_data,os->body_data+os->body_returned, |
300 | 0 | os->body_fill); |
301 | 0 | os->body_returned=0; |
302 | 0 | } |
303 | | |
304 | | /* make sure we have the buffer storage */ |
305 | 0 | if(_os_body_expand(os,bytes) || _os_lacing_expand(os,lacing_vals)) |
306 | 0 | return -1; |
307 | | |
308 | | /* Copy in the submitted packet. Yes, the copy is a waste; this is |
309 | | the liability of overly clean abstraction for the time being. It |
310 | | will actually be fairly easy to eliminate the extra copy in the |
311 | | future */ |
312 | | |
313 | 0 | for (i = 0; i < count; ++i) { |
314 | 0 | memcpy(os->body_data+os->body_fill, iov[i].iov_base, iov[i].iov_len); |
315 | 0 | os->body_fill += (int)iov[i].iov_len; |
316 | 0 | } |
317 | | |
318 | | /* Store lacing vals for this packet */ |
319 | 0 | for(i=0;i<lacing_vals-1;i++){ |
320 | 0 | os->lacing_vals[os->lacing_fill+i]=255; |
321 | 0 | os->granule_vals[os->lacing_fill+i]=os->granulepos; |
322 | 0 | } |
323 | 0 | os->lacing_vals[os->lacing_fill+i]=bytes%255; |
324 | 0 | os->granulepos=os->granule_vals[os->lacing_fill+i]=granulepos; |
325 | | |
326 | | /* flag the first segment as the beginning of the packet */ |
327 | 0 | os->lacing_vals[os->lacing_fill]|= 0x100; |
328 | |
|
329 | 0 | os->lacing_fill+=lacing_vals; |
330 | | |
331 | | /* for the sake of completeness */ |
332 | 0 | os->packetno++; |
333 | |
|
334 | 0 | if(e_o_s)os->e_o_s=1; |
335 | |
|
336 | 0 | return(0); |
337 | 0 | } |
338 | | |
339 | 0 | int ogg_stream_packetin(ogg_stream_state *os,ogg_packet *op){ |
340 | 0 | ogg_iovec_t iov; |
341 | 0 | iov.iov_base = op->packet; |
342 | 0 | iov.iov_len = op->bytes; |
343 | 0 | return ogg_stream_iovecin(os, &iov, 1, op->e_o_s, op->granulepos); |
344 | 0 | } |
345 | | |
346 | | /* Conditionally flush a page; force==0 will only flush nominal-size |
347 | | pages, force==1 forces us to flush a page regardless of page size |
348 | | so long as there's any data available at all. */ |
349 | 0 | static int ogg_stream_flush_i(ogg_stream_state *os,ogg_page *og, int force, int nfill){ |
350 | 0 | int i; |
351 | 0 | int vals=0; |
352 | 0 | int maxvals=(os->lacing_fill>255?255:os->lacing_fill); |
353 | 0 | int bytes=0; |
354 | 0 | long acc=0; |
355 | 0 | ogg_int64_t granule_pos=-1; |
356 | |
|
357 | 0 | if(ogg_stream_check(os)) return(0); |
358 | 0 | if(maxvals==0) return(0); |
359 | | |
360 | | /* construct a page */ |
361 | | /* decide how many segments to include */ |
362 | | |
363 | | /* If this is the initial header case, the first page must only include |
364 | | the initial header packet */ |
365 | 0 | if(os->b_o_s==0){ /* 'initial header page' case */ |
366 | 0 | granule_pos=0; |
367 | 0 | for(vals=0;vals<maxvals;vals++){ |
368 | 0 | if((os->lacing_vals[vals]&0x0ff)<255){ |
369 | 0 | vals++; |
370 | 0 | break; |
371 | 0 | } |
372 | 0 | } |
373 | 0 | }else{ |
374 | | |
375 | | /* The extra packets_done, packet_just_done logic here attempts to do two things: |
376 | | 1) Don't unnecessarily span pages. |
377 | | 2) Unless necessary, don't flush pages if there are less than four packets on |
378 | | them; this expands page size to reduce unnecessary overhead if incoming packets |
379 | | are large. |
380 | | These are not necessary behaviors, just 'always better than naive flushing' |
381 | | without requiring an application to explicitly request a specific optimized |
382 | | behavior. We'll want an explicit behavior setup pathway eventually as well. */ |
383 | |
|
384 | 0 | int packets_done=0; |
385 | 0 | int packet_just_done=0; |
386 | 0 | for(vals=0;vals<maxvals;vals++){ |
387 | 0 | if(acc>nfill && packet_just_done>=4){ |
388 | 0 | force=1; |
389 | 0 | break; |
390 | 0 | } |
391 | 0 | acc+=os->lacing_vals[vals]&0x0ff; |
392 | 0 | if((os->lacing_vals[vals]&0xff)<255){ |
393 | 0 | granule_pos=os->granule_vals[vals]; |
394 | 0 | packet_just_done=++packets_done; |
395 | 0 | }else |
396 | 0 | packet_just_done=0; |
397 | 0 | } |
398 | 0 | if(vals==255)force=1; |
399 | 0 | } |
400 | |
|
401 | 0 | if(!force) return(0); |
402 | | |
403 | | /* construct the header in temp storage */ |
404 | 0 | memcpy(os->header,"OggS",4); |
405 | | |
406 | | /* stream structure version */ |
407 | 0 | os->header[4]=0x00; |
408 | | |
409 | | /* continued packet flag? */ |
410 | 0 | os->header[5]=0x00; |
411 | 0 | if((os->lacing_vals[0]&0x100)==0)os->header[5]|=0x01; |
412 | | /* first page flag? */ |
413 | 0 | if(os->b_o_s==0)os->header[5]|=0x02; |
414 | | /* last page flag? */ |
415 | 0 | if(os->e_o_s && os->lacing_fill==vals)os->header[5]|=0x04; |
416 | 0 | os->b_o_s=1; |
417 | | |
418 | | /* 64 bits of PCM position */ |
419 | 0 | for(i=6;i<14;i++){ |
420 | 0 | os->header[i]=(unsigned char)(granule_pos&0xff); |
421 | 0 | granule_pos>>=8; |
422 | 0 | } |
423 | | |
424 | | /* 32 bits of stream serial number */ |
425 | 0 | { |
426 | 0 | long serialno=os->serialno; |
427 | 0 | for(i=14;i<18;i++){ |
428 | 0 | os->header[i]=(unsigned char)(serialno&0xff); |
429 | 0 | serialno>>=8; |
430 | 0 | } |
431 | 0 | } |
432 | | |
433 | | /* 32 bits of page counter (we have both counter and page header |
434 | | because this val can roll over) */ |
435 | 0 | if(os->pageno==-1)os->pageno=0; /* because someone called |
436 | | stream_reset; this would be a |
437 | | strange thing to do in an |
438 | | encode stream, but it has |
439 | | plausible uses */ |
440 | 0 | { |
441 | 0 | long pageno=os->pageno++; |
442 | 0 | for(i=18;i<22;i++){ |
443 | 0 | os->header[i]=(unsigned char)(pageno&0xff); |
444 | 0 | pageno>>=8; |
445 | 0 | } |
446 | 0 | } |
447 | | |
448 | | /* zero for computation; filled in later */ |
449 | 0 | os->header[22]=0; |
450 | 0 | os->header[23]=0; |
451 | 0 | os->header[24]=0; |
452 | 0 | os->header[25]=0; |
453 | | |
454 | | /* segment table */ |
455 | 0 | os->header[26]=(unsigned char)(vals&0xff); |
456 | 0 | for(i=0;i<vals;i++) |
457 | 0 | bytes+=os->header[i+27]=(unsigned char)(os->lacing_vals[i]&0xff); |
458 | | |
459 | | /* set pointers in the ogg_page struct */ |
460 | 0 | og->header=os->header; |
461 | 0 | og->header_len=os->header_fill=vals+27; |
462 | 0 | og->body=os->body_data+os->body_returned; |
463 | 0 | og->body_len=bytes; |
464 | | |
465 | | /* advance the lacing data and set the body_returned pointer */ |
466 | |
|
467 | 0 | os->lacing_fill-=vals; |
468 | 0 | memmove(os->lacing_vals,os->lacing_vals+vals,os->lacing_fill*sizeof(*os->lacing_vals)); |
469 | 0 | memmove(os->granule_vals,os->granule_vals+vals,os->lacing_fill*sizeof(*os->granule_vals)); |
470 | 0 | os->body_returned+=bytes; |
471 | | |
472 | | /* calculate the checksum */ |
473 | |
|
474 | 0 | ogg_page_checksum_set(og); |
475 | | |
476 | | /* done */ |
477 | 0 | return(1); |
478 | 0 | } |
479 | | |
480 | | /* This will flush remaining packets into a page (returning nonzero), |
481 | | even if there is not enough data to trigger a flush normally |
482 | | (undersized page). If there are no packets or partial packets to |
483 | | flush, ogg_stream_flush returns 0. Note that ogg_stream_flush will |
484 | | try to flush a normal sized page like ogg_stream_pageout; a call to |
485 | | ogg_stream_flush does not guarantee that all packets have flushed. |
486 | | Only a return value of 0 from ogg_stream_flush indicates all packet |
487 | | data is flushed into pages. |
488 | | |
489 | | since ogg_stream_flush will flush the last page in a stream even if |
490 | | it's undersized, you almost certainly want to use ogg_stream_pageout |
491 | | (and *not* ogg_stream_flush) unless you specifically need to flush |
492 | | a page regardless of size in the middle of a stream. */ |
493 | | |
494 | 0 | int ogg_stream_flush(ogg_stream_state *os,ogg_page *og){ |
495 | 0 | return ogg_stream_flush_i(os,og,1,4096); |
496 | 0 | } |
497 | | |
498 | | /* Like the above, but an argument is provided to adjust the nominal |
499 | | page size for applications which are smart enough to provide their |
500 | | own delay based flushing */ |
501 | | |
502 | 0 | int ogg_stream_flush_fill(ogg_stream_state *os,ogg_page *og, int nfill){ |
503 | 0 | return ogg_stream_flush_i(os,og,1,nfill); |
504 | 0 | } |
505 | | |
506 | | /* This constructs pages from buffered packet segments. The pointers |
507 | | returned are to static buffers; do not free. The returned buffers are |
508 | | good only until the next call (using the same ogg_stream_state) */ |
509 | | |
510 | 0 | int ogg_stream_pageout(ogg_stream_state *os, ogg_page *og){ |
511 | 0 | int force=0; |
512 | 0 | if(ogg_stream_check(os)) return 0; |
513 | | |
514 | 0 | if((os->e_o_s&&os->lacing_fill) || /* 'were done, now flush' case */ |
515 | 0 | (os->lacing_fill&&!os->b_o_s)) /* 'initial header page' case */ |
516 | 0 | force=1; |
517 | |
|
518 | 0 | return(ogg_stream_flush_i(os,og,force,4096)); |
519 | 0 | } |
520 | | |
521 | | /* Like the above, but an argument is provided to adjust the nominal |
522 | | page size for applications which are smart enough to provide their |
523 | | own delay based flushing */ |
524 | | |
525 | 0 | int ogg_stream_pageout_fill(ogg_stream_state *os, ogg_page *og, int nfill){ |
526 | 0 | int force=0; |
527 | 0 | if(ogg_stream_check(os)) return 0; |
528 | | |
529 | 0 | if((os->e_o_s&&os->lacing_fill) || /* 'were done, now flush' case */ |
530 | 0 | (os->lacing_fill&&!os->b_o_s)) /* 'initial header page' case */ |
531 | 0 | force=1; |
532 | |
|
533 | 0 | return(ogg_stream_flush_i(os,og,force,nfill)); |
534 | 0 | } |
535 | | |
536 | 0 | int ogg_stream_eos(ogg_stream_state *os){ |
537 | 0 | if(ogg_stream_check(os)) return 1; |
538 | 0 | return os->e_o_s; |
539 | 0 | } |
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 | 891 | int ogg_sync_init(ogg_sync_state *oy){ |
558 | 891 | if(oy){ |
559 | 891 | oy->storage = -1; /* used as a readiness flag */ |
560 | 891 | memset(oy,0,sizeof(*oy)); |
561 | 891 | } |
562 | 891 | return(0); |
563 | 891 | } |
564 | | |
565 | | /* clear non-flat storage within */ |
566 | 891 | int ogg_sync_clear(ogg_sync_state *oy){ |
567 | 891 | if(oy){ |
568 | 891 | if(oy->data)_ogg_free(oy->data); |
569 | 891 | memset(oy,0,sizeof(*oy)); |
570 | 891 | } |
571 | 891 | return(0); |
572 | 891 | } |
573 | | |
574 | 0 | int ogg_sync_destroy(ogg_sync_state *oy){ |
575 | 0 | if(oy){ |
576 | 0 | ogg_sync_clear(oy); |
577 | 0 | _ogg_free(oy); |
578 | 0 | } |
579 | 0 | return(0); |
580 | 0 | } |
581 | | |
582 | 157k | int ogg_sync_check(ogg_sync_state *oy){ |
583 | 157k | if(oy->storage<0) return -1; |
584 | 157k | return 0; |
585 | 157k | } |
586 | | |
587 | 17.5k | char *ogg_sync_buffer(ogg_sync_state *oy, long size){ |
588 | 17.5k | if(ogg_sync_check(oy)) return NULL; |
589 | | |
590 | | /* first, clear out any space that has been previously returned */ |
591 | 17.5k | if(oy->returned){ |
592 | 10.5k | oy->fill-=oy->returned; |
593 | 10.5k | if(oy->fill>0) |
594 | 2.49k | memmove(oy->data,oy->data+oy->returned,oy->fill); |
595 | 10.5k | oy->returned=0; |
596 | 10.5k | } |
597 | | |
598 | 17.5k | if(size>oy->storage-oy->fill){ |
599 | | /* We need to extend the internal buffer */ |
600 | 1.25k | long newsize; |
601 | 1.25k | void *ret; |
602 | | |
603 | 1.25k | if(size>INT_MAX-4096-oy->fill){ |
604 | 0 | ogg_sync_clear(oy); |
605 | 0 | return NULL; |
606 | 0 | } |
607 | 1.25k | newsize=size+oy->fill+4096; /* an extra page to be nice */ |
608 | 1.25k | if(oy->data) |
609 | 404 | ret=_ogg_realloc(oy->data,newsize); |
610 | 851 | else |
611 | 851 | ret=_ogg_malloc(newsize); |
612 | 1.25k | if(!ret){ |
613 | 0 | ogg_sync_clear(oy); |
614 | 0 | return NULL; |
615 | 0 | } |
616 | 1.25k | oy->data=ret; |
617 | 1.25k | oy->storage=newsize; |
618 | 1.25k | } |
619 | | |
620 | | /* expose a segment at least as large as requested at the fill mark */ |
621 | 17.5k | return((char *)oy->data+oy->fill); |
622 | 17.5k | } |
623 | | |
624 | 17.5k | int ogg_sync_wrote(ogg_sync_state *oy, long bytes){ |
625 | 17.5k | if(ogg_sync_check(oy))return -1; |
626 | 17.5k | if(oy->fill+bytes>oy->storage)return -1; |
627 | 17.5k | oy->fill+=bytes; |
628 | 17.5k | return(0); |
629 | 17.5k | } |
630 | | |
631 | | /* sync the stream. This is meant to be useful for finding page |
632 | | boundaries. |
633 | | |
634 | | return values for this: |
635 | | -n) skipped n bytes |
636 | | 0) page not ready; more data (no bytes skipped) |
637 | | n) page synced at current location; page length n bytes |
638 | | |
639 | | */ |
640 | | |
641 | 78.2k | long ogg_sync_pageseek(ogg_sync_state *oy,ogg_page *og){ |
642 | 78.2k | unsigned char *page=oy->data+oy->returned; |
643 | 78.2k | unsigned char *next; |
644 | 78.2k | long bytes=oy->fill-oy->returned; |
645 | | |
646 | 78.2k | if(ogg_sync_check(oy))return 0; |
647 | | |
648 | 78.2k | if(oy->headerbytes==0){ |
649 | 76.7k | int headerbytes,i; |
650 | 76.7k | if(bytes<27)return(0); /* not enough for a header */ |
651 | | |
652 | | /* verify capture pattern */ |
653 | 61.7k | if(memcmp(page,"OggS",4))goto sync_fail; |
654 | | |
655 | 10.5k | headerbytes=page[26]+27; |
656 | 10.5k | if(bytes<headerbytes)return(0); /* not enough for header + seg table */ |
657 | | |
658 | | /* count up body length in the segment table */ |
659 | | |
660 | 247k | for(i=0;i<page[26];i++) |
661 | 237k | oy->bodybytes+=page[27+i]; |
662 | 10.3k | oy->headerbytes=headerbytes; |
663 | 10.3k | } |
664 | | |
665 | 11.8k | if(oy->bodybytes+oy->headerbytes>bytes)return(0); |
666 | | |
667 | | /* The whole test page is buffered. Verify the checksum */ |
668 | 9.56k | { |
669 | | /* Grab the checksum bytes, set the header field to zero */ |
670 | 9.56k | char chksum[4]; |
671 | 9.56k | ogg_page log; |
672 | | |
673 | 9.56k | memcpy(chksum,page+22,4); |
674 | 9.56k | memset(page+22,0,4); |
675 | | |
676 | | /* set up a temp page struct and recompute the checksum */ |
677 | 9.56k | log.header=page; |
678 | 9.56k | log.header_len=oy->headerbytes; |
679 | 9.56k | log.body=page+oy->headerbytes; |
680 | 9.56k | log.body_len=oy->bodybytes; |
681 | 9.56k | ogg_page_checksum_set(&log); |
682 | | |
683 | | /* Compare */ |
684 | 9.56k | if(memcmp(chksum,page+22,4)){ |
685 | | /* D'oh. Mismatch! Corrupt page (or miscapture and not a page |
686 | | at all) */ |
687 | | /* replace the computed checksum with the one actually read in */ |
688 | 7.71k | memcpy(page+22,chksum,4); |
689 | | |
690 | | #ifndef DISABLE_CRC |
691 | | /* Bad checksum. Lose sync */ |
692 | | goto sync_fail; |
693 | | #endif |
694 | 7.71k | } |
695 | 9.56k | } |
696 | | |
697 | | /* yes, have a whole page all ready to go */ |
698 | 9.56k | { |
699 | 9.56k | if(og){ |
700 | 9.56k | og->header=page; |
701 | 9.56k | og->header_len=oy->headerbytes; |
702 | 9.56k | og->body=page+oy->headerbytes; |
703 | 9.56k | og->body_len=oy->bodybytes; |
704 | 9.56k | } |
705 | | |
706 | 9.56k | oy->unsynced=0; |
707 | 9.56k | oy->returned+=(bytes=oy->headerbytes+oy->bodybytes); |
708 | 9.56k | oy->headerbytes=0; |
709 | 9.56k | oy->bodybytes=0; |
710 | 9.56k | return(bytes); |
711 | 11.8k | } |
712 | | |
713 | 51.1k | sync_fail: |
714 | | |
715 | 51.1k | oy->headerbytes=0; |
716 | 51.1k | oy->bodybytes=0; |
717 | | |
718 | | /* search for possible capture */ |
719 | 51.1k | next=memchr(page+1,'O',bytes-1); |
720 | 51.1k | if(!next) |
721 | 7.08k | next=oy->data+oy->fill; |
722 | | |
723 | 51.1k | oy->returned=(int)(next-oy->data); |
724 | 51.1k | return((long)-(next-page)); |
725 | 11.8k | } |
726 | | |
727 | | /* sync the stream and get a page. Keep trying until we find a page. |
728 | | Suppress 'sync errors' after reporting the first. |
729 | | |
730 | | return values: |
731 | | -1) recapture (hole in data) |
732 | | 0) need more data |
733 | | 1) page returned |
734 | | |
735 | | Returns pointers into buffered data; invalidated by next call to |
736 | | _stream, _clear, _init, or _buffer */ |
737 | | |
738 | 37.1k | int ogg_sync_pageout(ogg_sync_state *oy, ogg_page *og){ |
739 | | |
740 | 37.1k | if(ogg_sync_check(oy))return 0; |
741 | | |
742 | | /* all we need to do is verify a page at the head of the stream |
743 | | buffer. If it doesn't verify, we look for the next potential |
744 | | frame */ |
745 | | |
746 | 78.2k | for(;;){ |
747 | 78.2k | long ret=ogg_sync_pageseek(oy,og); |
748 | 78.2k | if(ret>0){ |
749 | | /* have a page */ |
750 | 9.56k | return(1); |
751 | 9.56k | } |
752 | 68.6k | if(ret==0){ |
753 | | /* need more data */ |
754 | 17.5k | return(0); |
755 | 17.5k | } |
756 | | |
757 | | /* head did not start a synced page... skipped some bytes */ |
758 | 51.1k | if(!oy->unsynced){ |
759 | 10.0k | oy->unsynced=1; |
760 | 10.0k | return(-1); |
761 | 10.0k | } |
762 | | |
763 | | /* loop. keep looking */ |
764 | | |
765 | 51.1k | } |
766 | 37.1k | } |
767 | | |
768 | | /* add the incoming page to the stream state; we decompose the page |
769 | | into packet segments here as well. */ |
770 | | |
771 | 9.56k | int ogg_stream_pagein(ogg_stream_state *os, ogg_page *og){ |
772 | 9.56k | unsigned char *header=og->header; |
773 | 9.56k | unsigned char *body=og->body; |
774 | 9.56k | long bodysize=og->body_len; |
775 | 9.56k | int segptr=0; |
776 | | |
777 | 9.56k | int version=ogg_page_version(og); |
778 | 9.56k | int continued=ogg_page_continued(og); |
779 | 9.56k | int bos=ogg_page_bos(og); |
780 | 9.56k | int eos=ogg_page_eos(og); |
781 | 9.56k | ogg_int64_t granulepos=ogg_page_granulepos(og); |
782 | 9.56k | int serialno=ogg_page_serialno(og); |
783 | 9.56k | long pageno=ogg_page_pageno(og); |
784 | 9.56k | int segments=header[26]; |
785 | | |
786 | 9.56k | if(ogg_stream_check(os)) return -1; |
787 | | |
788 | | /* clean up 'returned data' */ |
789 | 9.56k | { |
790 | 9.56k | long lr=os->lacing_returned; |
791 | 9.56k | long br=os->body_returned; |
792 | | |
793 | | /* body data */ |
794 | 9.56k | if(br){ |
795 | 2.03k | os->body_fill-=br; |
796 | 2.03k | if(os->body_fill) |
797 | 124 | memmove(os->body_data,os->body_data+br,os->body_fill); |
798 | 2.03k | os->body_returned=0; |
799 | 2.03k | } |
800 | | |
801 | 9.56k | if(lr){ |
802 | | /* segment table */ |
803 | 2.53k | if(os->lacing_fill-lr){ |
804 | 132 | memmove(os->lacing_vals,os->lacing_vals+lr, |
805 | 132 | (os->lacing_fill-lr)*sizeof(*os->lacing_vals)); |
806 | 132 | memmove(os->granule_vals,os->granule_vals+lr, |
807 | 132 | (os->lacing_fill-lr)*sizeof(*os->granule_vals)); |
808 | 132 | } |
809 | 2.53k | os->lacing_fill-=lr; |
810 | 2.53k | os->lacing_packet-=lr; |
811 | 2.53k | os->lacing_returned=0; |
812 | 2.53k | } |
813 | 9.56k | } |
814 | | |
815 | | /* check the serial number */ |
816 | 9.56k | if(serialno!=os->serialno)return(-1); |
817 | 5.87k | if(version>0)return(-1); |
818 | | |
819 | 5.78k | if(_os_lacing_expand(os,segments+1)) return -1; |
820 | | |
821 | | /* are we in sequence? */ |
822 | 5.78k | if(pageno!=os->pageno){ |
823 | 4.65k | int i; |
824 | | |
825 | | /* unroll previous partial packet (if any) */ |
826 | 6.25k | for(i=os->lacing_packet;i<os->lacing_fill;i++) |
827 | 1.59k | os->body_fill-=os->lacing_vals[i]&0xff; |
828 | 4.65k | os->lacing_fill=os->lacing_packet; |
829 | | |
830 | | /* make a note of dropped data in segment table */ |
831 | 4.65k | if(os->pageno!=-1){ |
832 | 1.61k | os->lacing_vals[os->lacing_fill++]=0x400; |
833 | 1.61k | os->lacing_packet++; |
834 | 1.61k | } |
835 | 4.65k | } |
836 | | |
837 | | /* are we a 'continued packet' page? If so, we may need to skip |
838 | | some segments */ |
839 | 5.78k | if(continued){ |
840 | 1.89k | if(os->lacing_fill<1 || |
841 | 1.89k | (os->lacing_vals[os->lacing_fill-1]&0xff)<255 || |
842 | 1.89k | os->lacing_vals[os->lacing_fill-1]==0x400){ |
843 | 1.81k | bos=0; |
844 | 1.97k | for(;segptr<segments;segptr++){ |
845 | 1.15k | int val=header[27+segptr]; |
846 | 1.15k | body+=val; |
847 | 1.15k | bodysize-=val; |
848 | 1.15k | if(val<255){ |
849 | 999 | segptr++; |
850 | 999 | break; |
851 | 999 | } |
852 | 1.15k | } |
853 | 1.81k | } |
854 | 1.89k | } |
855 | | |
856 | 5.78k | if(bodysize){ |
857 | 4.19k | if(_os_body_expand(os,bodysize)) return -1; |
858 | 4.19k | memcpy(os->body_data+os->body_fill,body,bodysize); |
859 | 4.19k | os->body_fill+=bodysize; |
860 | 4.19k | } |
861 | | |
862 | 5.78k | { |
863 | 5.78k | int saved=-1; |
864 | 60.1k | while(segptr<segments){ |
865 | 54.3k | int val=header[27+segptr]; |
866 | 54.3k | os->lacing_vals[os->lacing_fill]=val; |
867 | 54.3k | os->granule_vals[os->lacing_fill]=-1; |
868 | | |
869 | 54.3k | if(bos){ |
870 | 788 | os->lacing_vals[os->lacing_fill]|=0x100; |
871 | 788 | bos=0; |
872 | 788 | } |
873 | | |
874 | 54.3k | if(val<255)saved=os->lacing_fill; |
875 | | |
876 | 54.3k | os->lacing_fill++; |
877 | 54.3k | segptr++; |
878 | | |
879 | 54.3k | if(val<255)os->lacing_packet=os->lacing_fill; |
880 | 54.3k | } |
881 | | |
882 | | /* set the granulepos on the last granuleval of the last full packet */ |
883 | 5.78k | if(saved!=-1){ |
884 | 4.29k | os->granule_vals[saved]=granulepos; |
885 | 4.29k | } |
886 | | |
887 | 5.78k | } |
888 | | |
889 | 5.78k | if(eos){ |
890 | 2.09k | os->e_o_s=1; |
891 | 2.09k | if(os->lacing_fill>0) |
892 | 1.61k | os->lacing_vals[os->lacing_fill-1]|=0x200; |
893 | 2.09k | } |
894 | | |
895 | 5.78k | os->pageno=pageno+1; |
896 | | |
897 | 5.78k | return(0); |
898 | 5.78k | } |
899 | | |
900 | | /* clear things to an initial state. Good to call, eg, before seeking */ |
901 | 7.33k | int ogg_sync_reset(ogg_sync_state *oy){ |
902 | 7.33k | if(ogg_sync_check(oy))return -1; |
903 | | |
904 | 7.33k | oy->fill=0; |
905 | 7.33k | oy->returned=0; |
906 | 7.33k | oy->unsynced=0; |
907 | 7.33k | oy->headerbytes=0; |
908 | 7.33k | oy->bodybytes=0; |
909 | 7.33k | return(0); |
910 | 7.33k | } |
911 | | |
912 | 7.33k | int ogg_stream_reset(ogg_stream_state *os){ |
913 | 7.33k | if(ogg_stream_check(os)) return -1; |
914 | | |
915 | 7.33k | os->body_fill=0; |
916 | 7.33k | os->body_returned=0; |
917 | | |
918 | 7.33k | os->lacing_fill=0; |
919 | 7.33k | os->lacing_packet=0; |
920 | 7.33k | os->lacing_returned=0; |
921 | | |
922 | 7.33k | os->header_fill=0; |
923 | | |
924 | 7.33k | os->e_o_s=0; |
925 | 7.33k | os->b_o_s=0; |
926 | 7.33k | os->pageno=-1; |
927 | 7.33k | os->packetno=0; |
928 | 7.33k | os->granulepos=0; |
929 | | |
930 | 7.33k | return(0); |
931 | 7.33k | } |
932 | | |
933 | 0 | int ogg_stream_reset_serialno(ogg_stream_state *os,int serialno){ |
934 | 0 | if(ogg_stream_check(os)) return -1; |
935 | 0 | ogg_stream_reset(os); |
936 | 0 | os->serialno=serialno; |
937 | 0 | return(0); |
938 | 0 | } |
939 | | |
940 | 42.7k | static int _packetout(ogg_stream_state *os,ogg_packet *op,int adv){ |
941 | | |
942 | | /* The last part of decode. We have the stream broken into packet |
943 | | segments. Now we need to group them into packets (or return the |
944 | | out of sync markers) */ |
945 | | |
946 | 42.7k | int ptr=os->lacing_returned; |
947 | | |
948 | 42.7k | if(os->lacing_packet<=ptr)return(0); |
949 | | |
950 | 37.0k | if(os->lacing_vals[ptr]&0x400){ |
951 | | /* we need to tell the codec there's a gap; it might need to |
952 | | handle previous packet dependencies. */ |
953 | 1.61k | os->lacing_returned++; |
954 | 1.61k | os->packetno++; |
955 | 1.61k | return(-1); |
956 | 1.61k | } |
957 | | |
958 | 35.4k | if(!op && !adv)return(1); /* just using peek as an inexpensive way |
959 | | to ask if there's a whole packet |
960 | | waiting */ |
961 | | |
962 | | /* Gather the whole packet. We'll have no holes or a partial packet */ |
963 | 35.4k | { |
964 | 35.4k | int size=os->lacing_vals[ptr]&0xff; |
965 | 35.4k | long bytes=size; |
966 | 35.4k | int eos=os->lacing_vals[ptr]&0x200; /* last packet of the stream? */ |
967 | 35.4k | int bos=os->lacing_vals[ptr]&0x100; /* first packet of the stream? */ |
968 | | |
969 | 46.8k | while(size==255){ |
970 | 11.3k | int val=os->lacing_vals[++ptr]; |
971 | 11.3k | size=val&0xff; |
972 | 11.3k | if(val&0x200)eos=0x200; |
973 | 11.3k | bytes+=size; |
974 | 11.3k | } |
975 | | |
976 | 35.4k | if(op){ |
977 | 35.4k | op->e_o_s=eos; |
978 | 35.4k | op->b_o_s=bos; |
979 | 35.4k | op->packet=os->body_data+os->body_returned; |
980 | 35.4k | op->packetno=os->packetno; |
981 | 35.4k | op->granulepos=os->granule_vals[ptr]; |
982 | 35.4k | op->bytes=bytes; |
983 | 35.4k | } |
984 | | |
985 | 35.4k | if(adv){ |
986 | 35.4k | os->body_returned+=bytes; |
987 | 35.4k | os->lacing_returned=ptr+1; |
988 | 35.4k | os->packetno++; |
989 | 35.4k | } |
990 | 35.4k | } |
991 | 35.4k | return(1); |
992 | 35.4k | } |
993 | | |
994 | 42.7k | int ogg_stream_packetout(ogg_stream_state *os,ogg_packet *op){ |
995 | 42.7k | if(ogg_stream_check(os)) return 0; |
996 | 42.7k | return _packetout(os,op,1); |
997 | 42.7k | } |
998 | | |
999 | 0 | int ogg_stream_packetpeek(ogg_stream_state *os,ogg_packet *op){ |
1000 | 0 | if(ogg_stream_check(os)) return 0; |
1001 | 0 | return _packetout(os,op,0); |
1002 | 0 | } |
1003 | | |
1004 | 0 | void ogg_packet_clear(ogg_packet *op) { |
1005 | 0 | _ogg_free(op->packet); |
1006 | 0 | memset(op, 0, sizeof(*op)); |
1007 | 0 | } |
1008 | | |
1009 | | #ifdef _V_SELFTEST |
1010 | | #include <stdio.h> |
1011 | | |
1012 | | ogg_stream_state os_en, os_de; |
1013 | | ogg_sync_state oy; |
1014 | | |
1015 | | void checkpacket(ogg_packet *op,long len, int no, long pos){ |
1016 | | long j; |
1017 | | static int sequence=0; |
1018 | | static int lastno=0; |
1019 | | |
1020 | | if(op->bytes!=len){ |
1021 | | fprintf(stderr,"incorrect packet length (%ld != %ld)!\n",op->bytes,len); |
1022 | | exit(1); |
1023 | | } |
1024 | | if(op->granulepos!=pos){ |
1025 | | fprintf(stderr,"incorrect packet granpos (%ld != %ld)!\n",(long)op->granulepos,pos); |
1026 | | exit(1); |
1027 | | } |
1028 | | |
1029 | | /* packet number just follows sequence/gap; adjust the input number |
1030 | | for that */ |
1031 | | if(no==0){ |
1032 | | sequence=0; |
1033 | | }else{ |
1034 | | sequence++; |
1035 | | if(no>lastno+1) |
1036 | | sequence++; |
1037 | | } |
1038 | | lastno=no; |
1039 | | if(op->packetno!=sequence){ |
1040 | | fprintf(stderr,"incorrect packet sequence %ld != %d\n", |
1041 | | (long)(op->packetno),sequence); |
1042 | | exit(1); |
1043 | | } |
1044 | | |
1045 | | /* Test data */ |
1046 | | for(j=0;j<op->bytes;j++) |
1047 | | if(op->packet[j]!=((j+no)&0xff)){ |
1048 | | fprintf(stderr,"body data mismatch (1) at pos %ld: %x!=%lx!\n\n", |
1049 | | j,op->packet[j],(j+no)&0xff); |
1050 | | exit(1); |
1051 | | } |
1052 | | } |
1053 | | |
1054 | | void check_page(unsigned char *data,const int *header,ogg_page *og){ |
1055 | | long j; |
1056 | | /* Test data */ |
1057 | | for(j=0;j<og->body_len;j++) |
1058 | | if(og->body[j]!=data[j]){ |
1059 | | fprintf(stderr,"body data mismatch (2) at pos %ld: %x!=%x!\n\n", |
1060 | | j,data[j],og->body[j]); |
1061 | | exit(1); |
1062 | | } |
1063 | | |
1064 | | /* Test header */ |
1065 | | for(j=0;j<og->header_len;j++){ |
1066 | | if(og->header[j]!=header[j]){ |
1067 | | fprintf(stderr,"header content mismatch at pos %ld:\n",j); |
1068 | | for(j=0;j<header[26]+27;j++) |
1069 | | fprintf(stderr," (%ld)%02x:%02x",j,header[j],og->header[j]); |
1070 | | fprintf(stderr,"\n"); |
1071 | | exit(1); |
1072 | | } |
1073 | | } |
1074 | | if(og->header_len!=header[26]+27){ |
1075 | | fprintf(stderr,"header length incorrect! (%ld!=%d)\n", |
1076 | | og->header_len,header[26]+27); |
1077 | | exit(1); |
1078 | | } |
1079 | | } |
1080 | | |
1081 | | void print_header(ogg_page *og){ |
1082 | | int j; |
1083 | | fprintf(stderr,"\nHEADER:\n"); |
1084 | | fprintf(stderr," capture: %c %c %c %c version: %d flags: %x\n", |
1085 | | og->header[0],og->header[1],og->header[2],og->header[3], |
1086 | | (int)og->header[4],(int)og->header[5]); |
1087 | | |
1088 | | fprintf(stderr," granulepos: %d serialno: %d pageno: %ld\n", |
1089 | | (og->header[9]<<24)|(og->header[8]<<16)| |
1090 | | (og->header[7]<<8)|og->header[6], |
1091 | | (og->header[17]<<24)|(og->header[16]<<16)| |
1092 | | (og->header[15]<<8)|og->header[14], |
1093 | | ((long)(og->header[21])<<24)|(og->header[20]<<16)| |
1094 | | (og->header[19]<<8)|og->header[18]); |
1095 | | |
1096 | | fprintf(stderr," checksum: %02x:%02x:%02x:%02x\n segments: %d (", |
1097 | | (int)og->header[22],(int)og->header[23], |
1098 | | (int)og->header[24],(int)og->header[25], |
1099 | | (int)og->header[26]); |
1100 | | |
1101 | | for(j=27;j<og->header_len;j++) |
1102 | | fprintf(stderr,"%d ",(int)og->header[j]); |
1103 | | fprintf(stderr,")\n\n"); |
1104 | | } |
1105 | | |
1106 | | void copy_page(ogg_page *og){ |
1107 | | unsigned char *temp=_ogg_malloc(og->header_len); |
1108 | | memcpy(temp,og->header,og->header_len); |
1109 | | og->header=temp; |
1110 | | |
1111 | | temp=_ogg_malloc(og->body_len); |
1112 | | memcpy(temp,og->body,og->body_len); |
1113 | | og->body=temp; |
1114 | | } |
1115 | | |
1116 | | void free_page(ogg_page *og){ |
1117 | | _ogg_free (og->header); |
1118 | | _ogg_free (og->body); |
1119 | | } |
1120 | | |
1121 | | void error(void){ |
1122 | | fprintf(stderr,"error!\n"); |
1123 | | exit(1); |
1124 | | } |
1125 | | |
1126 | | /* 17 only */ |
1127 | | const int head1_0[] = {0x4f,0x67,0x67,0x53,0,0x06, |
1128 | | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
1129 | | 0x01,0x02,0x03,0x04,0,0,0,0, |
1130 | | 0x15,0xed,0xec,0x91, |
1131 | | 1, |
1132 | | 17}; |
1133 | | |
1134 | | /* 17, 254, 255, 256, 500, 510, 600 byte, pad */ |
1135 | | const int head1_1[] = {0x4f,0x67,0x67,0x53,0,0x02, |
1136 | | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
1137 | | 0x01,0x02,0x03,0x04,0,0,0,0, |
1138 | | 0x59,0x10,0x6c,0x2c, |
1139 | | 1, |
1140 | | 17}; |
1141 | | const int head2_1[] = {0x4f,0x67,0x67,0x53,0,0x04, |
1142 | | 0x07,0x18,0x00,0x00,0x00,0x00,0x00,0x00, |
1143 | | 0x01,0x02,0x03,0x04,1,0,0,0, |
1144 | | 0x89,0x33,0x85,0xce, |
1145 | | 13, |
1146 | | 254,255,0,255,1,255,245,255,255,0, |
1147 | | 255,255,90}; |
1148 | | |
1149 | | /* nil packets; beginning,middle,end */ |
1150 | | const int head1_2[] = {0x4f,0x67,0x67,0x53,0,0x02, |
1151 | | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
1152 | | 0x01,0x02,0x03,0x04,0,0,0,0, |
1153 | | 0xff,0x7b,0x23,0x17, |
1154 | | 1, |
1155 | | 0}; |
1156 | | const int head2_2[] = {0x4f,0x67,0x67,0x53,0,0x04, |
1157 | | 0x07,0x28,0x00,0x00,0x00,0x00,0x00,0x00, |
1158 | | 0x01,0x02,0x03,0x04,1,0,0,0, |
1159 | | 0x5c,0x3f,0x66,0xcb, |
1160 | | 17, |
1161 | | 17,254,255,0,0,255,1,0,255,245,255,255,0, |
1162 | | 255,255,90,0}; |
1163 | | |
1164 | | /* large initial packet */ |
1165 | | const int head1_3[] = {0x4f,0x67,0x67,0x53,0,0x02, |
1166 | | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
1167 | | 0x01,0x02,0x03,0x04,0,0,0,0, |
1168 | | 0x01,0x27,0x31,0xaa, |
1169 | | 18, |
1170 | | 255,255,255,255,255,255,255,255, |
1171 | | 255,255,255,255,255,255,255,255,255,10}; |
1172 | | |
1173 | | const int head2_3[] = {0x4f,0x67,0x67,0x53,0,0x04, |
1174 | | 0x07,0x08,0x00,0x00,0x00,0x00,0x00,0x00, |
1175 | | 0x01,0x02,0x03,0x04,1,0,0,0, |
1176 | | 0x7f,0x4e,0x8a,0xd2, |
1177 | | 4, |
1178 | | 255,4,255,0}; |
1179 | | |
1180 | | |
1181 | | /* continuing packet test */ |
1182 | | const int head1_4[] = {0x4f,0x67,0x67,0x53,0,0x02, |
1183 | | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
1184 | | 0x01,0x02,0x03,0x04,0,0,0,0, |
1185 | | 0xff,0x7b,0x23,0x17, |
1186 | | 1, |
1187 | | 0}; |
1188 | | |
1189 | | const int head2_4[] = {0x4f,0x67,0x67,0x53,0,0x00, |
1190 | | 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF, |
1191 | | 0x01,0x02,0x03,0x04,1,0,0,0, |
1192 | | 0xf8,0x3c,0x19,0x79, |
1193 | | 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 | | 255,255,255,255,255,255,255,255, |
1221 | | 255,255,255,255,255,255,255,255, |
1222 | | 255,255,255,255,255,255,255,255, |
1223 | | 255,255,255,255,255,255,255,255, |
1224 | | 255,255,255,255,255,255,255,255, |
1225 | | 255,255,255,255,255,255,255}; |
1226 | | |
1227 | | const int head3_4[] = {0x4f,0x67,0x67,0x53,0,0x05, |
1228 | | 0x07,0x0c,0x00,0x00,0x00,0x00,0x00,0x00, |
1229 | | 0x01,0x02,0x03,0x04,2,0,0,0, |
1230 | | 0x38,0xe6,0xb6,0x28, |
1231 | | 6, |
1232 | | 255,220,255,4,255,0}; |
1233 | | |
1234 | | |
1235 | | /* spill expansion test */ |
1236 | | const int head1_4b[] = {0x4f,0x67,0x67,0x53,0,0x02, |
1237 | | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
1238 | | 0x01,0x02,0x03,0x04,0,0,0,0, |
1239 | | 0xff,0x7b,0x23,0x17, |
1240 | | 1, |
1241 | | 0}; |
1242 | | |
1243 | | const int head2_4b[] = {0x4f,0x67,0x67,0x53,0,0x00, |
1244 | | 0x07,0x10,0x00,0x00,0x00,0x00,0x00,0x00, |
1245 | | 0x01,0x02,0x03,0x04,1,0,0,0, |
1246 | | 0xce,0x8f,0x17,0x1a, |
1247 | | 23, |
1248 | | 255,255,255,255,255,255,255,255, |
1249 | | 255,255,255,255,255,255,255,255,255,10,255,4,255,0,0}; |
1250 | | |
1251 | | |
1252 | | const int head3_4b[] = {0x4f,0x67,0x67,0x53,0,0x04, |
1253 | | 0x07,0x14,0x00,0x00,0x00,0x00,0x00,0x00, |
1254 | | 0x01,0x02,0x03,0x04,2,0,0,0, |
1255 | | 0x9b,0xb2,0x50,0xa1, |
1256 | | 1, |
1257 | | 0}; |
1258 | | |
1259 | | /* page with the 255 segment limit */ |
1260 | | const int head1_5[] = {0x4f,0x67,0x67,0x53,0,0x02, |
1261 | | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
1262 | | 0x01,0x02,0x03,0x04,0,0,0,0, |
1263 | | 0xff,0x7b,0x23,0x17, |
1264 | | 1, |
1265 | | 0}; |
1266 | | |
1267 | | const int head2_5[] = {0x4f,0x67,0x67,0x53,0,0x00, |
1268 | | 0x07,0xfc,0x03,0x00,0x00,0x00,0x00,0x00, |
1269 | | 0x01,0x02,0x03,0x04,1,0,0,0, |
1270 | | 0xed,0x2a,0x2e,0xa7, |
1271 | | 255, |
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 | | 10,10,10,10,10,10,10,10, |
1299 | | 10,10,10,10,10,10,10,10, |
1300 | | 10,10,10,10,10,10,10,10, |
1301 | | 10,10,10,10,10,10,10,10, |
1302 | | 10,10,10,10,10,10,10,10, |
1303 | | 10,10,10,10,10,10,10}; |
1304 | | |
1305 | | const int head3_5[] = {0x4f,0x67,0x67,0x53,0,0x04, |
1306 | | 0x07,0x00,0x04,0x00,0x00,0x00,0x00,0x00, |
1307 | | 0x01,0x02,0x03,0x04,2,0,0,0, |
1308 | | 0x6c,0x3b,0x82,0x3d, |
1309 | | 1, |
1310 | | 50}; |
1311 | | |
1312 | | |
1313 | | /* packet that overspans over an entire page */ |
1314 | | const int head1_6[] = {0x4f,0x67,0x67,0x53,0,0x02, |
1315 | | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
1316 | | 0x01,0x02,0x03,0x04,0,0,0,0, |
1317 | | 0xff,0x7b,0x23,0x17, |
1318 | | 1, |
1319 | | 0}; |
1320 | | |
1321 | | const int head2_6[] = {0x4f,0x67,0x67,0x53,0,0x00, |
1322 | | 0x07,0x04,0x00,0x00,0x00,0x00,0x00,0x00, |
1323 | | 0x01,0x02,0x03,0x04,1,0,0,0, |
1324 | | 0x68,0x22,0x7c,0x3d, |
1325 | | 255, |
1326 | | 100, |
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 | | 255,255,255,255,255,255,255,255, |
1354 | | 255,255,255,255,255,255,255,255, |
1355 | | 255,255,255,255,255,255,255,255, |
1356 | | 255,255,255,255,255,255,255,255, |
1357 | | 255,255,255,255,255,255,255,255, |
1358 | | 255,255,255,255,255,255}; |
1359 | | |
1360 | | const int head3_6[] = {0x4f,0x67,0x67,0x53,0,0x01, |
1361 | | 0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF, |
1362 | | 0x01,0x02,0x03,0x04,2,0,0,0, |
1363 | | 0xf4,0x87,0xba,0xf3, |
1364 | | 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 | | 255,255,255,255,255,255,255,255, |
1392 | | 255,255,255,255,255,255,255,255, |
1393 | | 255,255,255,255,255,255,255,255, |
1394 | | 255,255,255,255,255,255,255,255, |
1395 | | 255,255,255,255,255,255,255,255, |
1396 | | 255,255,255,255,255,255,255}; |
1397 | | |
1398 | | const int head4_6[] = {0x4f,0x67,0x67,0x53,0,0x05, |
1399 | | 0x07,0x10,0x00,0x00,0x00,0x00,0x00,0x00, |
1400 | | 0x01,0x02,0x03,0x04,3,0,0,0, |
1401 | | 0xf7,0x2f,0x6c,0x60, |
1402 | | 5, |
1403 | | 254,255,4,255,0}; |
1404 | | |
1405 | | /* packet that overspans over an entire page */ |
1406 | | const int head1_7[] = {0x4f,0x67,0x67,0x53,0,0x02, |
1407 | | 0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, |
1408 | | 0x01,0x02,0x03,0x04,0,0,0,0, |
1409 | | 0xff,0x7b,0x23,0x17, |
1410 | | 1, |
1411 | | 0}; |
1412 | | |
1413 | | const int head2_7[] = {0x4f,0x67,0x67,0x53,0,0x00, |
1414 | | 0x07,0x04,0x00,0x00,0x00,0x00,0x00,0x00, |
1415 | | 0x01,0x02,0x03,0x04,1,0,0,0, |
1416 | | 0x68,0x22,0x7c,0x3d, |
1417 | | 255, |
1418 | | 100, |
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 | | 255,255,255,255,255,255,255,255, |
1446 | | 255,255,255,255,255,255,255,255, |
1447 | | 255,255,255,255,255,255,255,255, |
1448 | | 255,255,255,255,255,255,255,255, |
1449 | | 255,255,255,255,255,255,255,255, |
1450 | | 255,255,255,255,255,255}; |
1451 | | |
1452 | | const int head3_7[] = {0x4f,0x67,0x67,0x53,0,0x05, |
1453 | | 0x07,0x08,0x00,0x00,0x00,0x00,0x00,0x00, |
1454 | | 0x01,0x02,0x03,0x04,2,0,0,0, |
1455 | | 0xd4,0xe0,0x60,0xe5, |
1456 | | 1, |
1457 | | 0}; |
1458 | | |
1459 | | int compare_packet(const ogg_packet *op1, const ogg_packet *op2){ |
1460 | | if(op1->packet!=op2->packet){ |
1461 | | fprintf(stderr,"op1->packet != op2->packet\n"); |
1462 | | return(1); |
1463 | | } |
1464 | | if(op1->bytes!=op2->bytes){ |
1465 | | fprintf(stderr,"op1->bytes != op2->bytes\n"); |
1466 | | return(1); |
1467 | | } |
1468 | | if(op1->b_o_s!=op2->b_o_s){ |
1469 | | fprintf(stderr,"op1->b_o_s != op2->b_o_s\n"); |
1470 | | return(1); |
1471 | | } |
1472 | | if(op1->e_o_s!=op2->e_o_s){ |
1473 | | fprintf(stderr,"op1->e_o_s != op2->e_o_s\n"); |
1474 | | return(1); |
1475 | | } |
1476 | | if(op1->granulepos!=op2->granulepos){ |
1477 | | fprintf(stderr,"op1->granulepos != op2->granulepos\n"); |
1478 | | return(1); |
1479 | | } |
1480 | | if(op1->packetno!=op2->packetno){ |
1481 | | fprintf(stderr,"op1->packetno != op2->packetno\n"); |
1482 | | return(1); |
1483 | | } |
1484 | | return(0); |
1485 | | } |
1486 | | |
1487 | | void test_pack(const int *pl, const int **headers, int byteskip, |
1488 | | int pageskip, int packetskip){ |
1489 | | unsigned char *data=_ogg_malloc(1024*1024); /* for scripted test cases only */ |
1490 | | long inptr=0; |
1491 | | long outptr=0; |
1492 | | long deptr=0; |
1493 | | long depacket=0; |
1494 | | long granule_pos=7,pageno=0; |
1495 | | int i,j,packets,pageout=pageskip; |
1496 | | int eosflag=0; |
1497 | | int bosflag=0; |
1498 | | |
1499 | | int byteskipcount=0; |
1500 | | |
1501 | | ogg_stream_reset(&os_en); |
1502 | | ogg_stream_reset(&os_de); |
1503 | | ogg_sync_reset(&oy); |
1504 | | |
1505 | | for(packets=0;packets<packetskip;packets++) |
1506 | | depacket+=pl[packets]; |
1507 | | |
1508 | | for(packets=0;;packets++)if(pl[packets]==-1)break; |
1509 | | |
1510 | | for(i=0;i<packets;i++){ |
1511 | | /* construct a test packet */ |
1512 | | ogg_packet op; |
1513 | | int len=pl[i]; |
1514 | | |
1515 | | op.packet=data+inptr; |
1516 | | op.bytes=len; |
1517 | | op.e_o_s=(pl[i+1]<0?1:0); |
1518 | | op.granulepos=granule_pos; |
1519 | | |
1520 | | granule_pos+=1024; |
1521 | | |
1522 | | for(j=0;j<len;j++)data[inptr++]=i+j; |
1523 | | |
1524 | | /* submit the test packet */ |
1525 | | ogg_stream_packetin(&os_en,&op); |
1526 | | |
1527 | | /* retrieve any finished pages */ |
1528 | | { |
1529 | | ogg_page og; |
1530 | | |
1531 | | while(ogg_stream_pageout(&os_en,&og)){ |
1532 | | /* We have a page. Check it carefully */ |
1533 | | |
1534 | | fprintf(stderr,"%ld, ",pageno); |
1535 | | |
1536 | | if(headers[pageno]==NULL){ |
1537 | | fprintf(stderr,"coded too many pages!\n"); |
1538 | | exit(1); |
1539 | | } |
1540 | | |
1541 | | check_page(data+outptr,headers[pageno],&og); |
1542 | | |
1543 | | outptr+=og.body_len; |
1544 | | pageno++; |
1545 | | if(pageskip){ |
1546 | | bosflag=1; |
1547 | | pageskip--; |
1548 | | deptr+=og.body_len; |
1549 | | } |
1550 | | |
1551 | | /* have a complete page; submit it to sync/decode */ |
1552 | | |
1553 | | { |
1554 | | ogg_page og_de; |
1555 | | ogg_packet op_de,op_de2; |
1556 | | char *buf=ogg_sync_buffer(&oy,og.header_len+og.body_len); |
1557 | | char *next=buf; |
1558 | | byteskipcount+=og.header_len; |
1559 | | if(byteskipcount>byteskip){ |
1560 | | memcpy(next,og.header,byteskipcount-byteskip); |
1561 | | next+=byteskipcount-byteskip; |
1562 | | byteskipcount=byteskip; |
1563 | | } |
1564 | | |
1565 | | byteskipcount+=og.body_len; |
1566 | | if(byteskipcount>byteskip){ |
1567 | | memcpy(next,og.body,byteskipcount-byteskip); |
1568 | | next+=byteskipcount-byteskip; |
1569 | | byteskipcount=byteskip; |
1570 | | } |
1571 | | |
1572 | | ogg_sync_wrote(&oy,(long)(next-buf)); |
1573 | | |
1574 | | while(1){ |
1575 | | int ret=ogg_sync_pageout(&oy,&og_de); |
1576 | | if(ret==0)break; |
1577 | | if(ret<0)continue; |
1578 | | /* got a page. Happy happy. Verify that it's good. */ |
1579 | | |
1580 | | fprintf(stderr,"(%d), ",pageout); |
1581 | | |
1582 | | check_page(data+deptr,headers[pageout],&og_de); |
1583 | | deptr+=og_de.body_len; |
1584 | | pageout++; |
1585 | | |
1586 | | /* submit it to deconstitution */ |
1587 | | ogg_stream_pagein(&os_de,&og_de); |
1588 | | |
1589 | | /* packets out? */ |
1590 | | while(ogg_stream_packetpeek(&os_de,&op_de2)>0){ |
1591 | | ogg_stream_packetpeek(&os_de,NULL); |
1592 | | ogg_stream_packetout(&os_de,&op_de); /* just catching them all */ |
1593 | | |
1594 | | /* verify peek and out match */ |
1595 | | if(compare_packet(&op_de,&op_de2)){ |
1596 | | fprintf(stderr,"packetout != packetpeek! pos=%ld\n", |
1597 | | depacket); |
1598 | | exit(1); |
1599 | | } |
1600 | | |
1601 | | /* verify the packet! */ |
1602 | | /* check data */ |
1603 | | if(memcmp(data+depacket,op_de.packet,op_de.bytes)){ |
1604 | | fprintf(stderr,"packet data mismatch in decode! pos=%ld\n", |
1605 | | depacket); |
1606 | | exit(1); |
1607 | | } |
1608 | | /* check bos flag */ |
1609 | | if(bosflag==0 && op_de.b_o_s==0){ |
1610 | | fprintf(stderr,"b_o_s flag not set on packet!\n"); |
1611 | | exit(1); |
1612 | | } |
1613 | | if(bosflag && op_de.b_o_s){ |
1614 | | fprintf(stderr,"b_o_s flag incorrectly set on packet!\n"); |
1615 | | exit(1); |
1616 | | } |
1617 | | bosflag=1; |
1618 | | depacket+=op_de.bytes; |
1619 | | |
1620 | | /* check eos flag */ |
1621 | | if(eosflag){ |
1622 | | fprintf(stderr,"Multiple decoded packets with eos flag!\n"); |
1623 | | exit(1); |
1624 | | } |
1625 | | |
1626 | | if(op_de.e_o_s)eosflag=1; |
1627 | | |
1628 | | /* check granulepos flag */ |
1629 | | if(op_de.granulepos!=-1){ |
1630 | | fprintf(stderr," granule:%ld ",(long)op_de.granulepos); |
1631 | | } |
1632 | | } |
1633 | | } |
1634 | | } |
1635 | | } |
1636 | | } |
1637 | | } |
1638 | | _ogg_free(data); |
1639 | | if(headers[pageno]!=NULL){ |
1640 | | fprintf(stderr,"did not write last page!\n"); |
1641 | | exit(1); |
1642 | | } |
1643 | | if(headers[pageout]!=NULL){ |
1644 | | fprintf(stderr,"did not decode last page!\n"); |
1645 | | exit(1); |
1646 | | } |
1647 | | if(inptr!=outptr){ |
1648 | | fprintf(stderr,"encoded page data incomplete!\n"); |
1649 | | exit(1); |
1650 | | } |
1651 | | if(inptr!=deptr){ |
1652 | | fprintf(stderr,"decoded page data incomplete!\n"); |
1653 | | exit(1); |
1654 | | } |
1655 | | if(inptr!=depacket){ |
1656 | | fprintf(stderr,"decoded packet data incomplete!\n"); |
1657 | | exit(1); |
1658 | | } |
1659 | | if(!eosflag){ |
1660 | | fprintf(stderr,"Never got a packet with EOS set!\n"); |
1661 | | exit(1); |
1662 | | } |
1663 | | fprintf(stderr,"ok.\n"); |
1664 | | } |
1665 | | |
1666 | | int main(void){ |
1667 | | |
1668 | | ogg_stream_init(&os_en,0x04030201); |
1669 | | ogg_stream_init(&os_de,0x04030201); |
1670 | | ogg_sync_init(&oy); |
1671 | | |
1672 | | /* Exercise each code path in the framing code. Also verify that |
1673 | | the checksums are working. */ |
1674 | | |
1675 | | { |
1676 | | /* 17 only */ |
1677 | | const int packets[]={17, -1}; |
1678 | | const int *headret[]={head1_0,NULL}; |
1679 | | |
1680 | | fprintf(stderr,"testing single page encoding... "); |
1681 | | test_pack(packets,headret,0,0,0); |
1682 | | } |
1683 | | |
1684 | | { |
1685 | | /* 17, 254, 255, 256, 500, 510, 600 byte, pad */ |
1686 | | const int packets[]={17, 254, 255, 256, 500, 510, 600, -1}; |
1687 | | const int *headret[]={head1_1,head2_1,NULL}; |
1688 | | |
1689 | | fprintf(stderr,"testing basic page encoding... "); |
1690 | | test_pack(packets,headret,0,0,0); |
1691 | | } |
1692 | | |
1693 | | { |
1694 | | /* nil packets; beginning,middle,end */ |
1695 | | const int packets[]={0,17, 254, 255, 0, 256, 0, 500, 510, 600, 0, -1}; |
1696 | | const int *headret[]={head1_2,head2_2,NULL}; |
1697 | | |
1698 | | fprintf(stderr,"testing basic nil packets... "); |
1699 | | test_pack(packets,headret,0,0,0); |
1700 | | } |
1701 | | |
1702 | | { |
1703 | | /* large initial packet */ |
1704 | | const int packets[]={4345,259,255,-1}; |
1705 | | const int *headret[]={head1_3,head2_3,NULL}; |
1706 | | |
1707 | | fprintf(stderr,"testing initial-packet lacing > 4k... "); |
1708 | | test_pack(packets,headret,0,0,0); |
1709 | | } |
1710 | | |
1711 | | { |
1712 | | /* continuing packet test; with page spill expansion, we have to |
1713 | | overflow the lacing table. */ |
1714 | | const int packets[]={0,65500,259,255,-1}; |
1715 | | const int *headret[]={head1_4,head2_4,head3_4,NULL}; |
1716 | | |
1717 | | fprintf(stderr,"testing single packet page span... "); |
1718 | | test_pack(packets,headret,0,0,0); |
1719 | | } |
1720 | | |
1721 | | { |
1722 | | /* spill expand packet test */ |
1723 | | const int packets[]={0,4345,259,255,0,0,-1}; |
1724 | | const int *headret[]={head1_4b,head2_4b,head3_4b,NULL}; |
1725 | | |
1726 | | fprintf(stderr,"testing page spill expansion... "); |
1727 | | test_pack(packets,headret,0,0,0); |
1728 | | } |
1729 | | |
1730 | | /* page with the 255 segment limit */ |
1731 | | { |
1732 | | |
1733 | | const int packets[]={0,10,10,10,10,10,10,10,10, |
1734 | | 10,10,10,10,10,10,10,10, |
1735 | | 10,10,10,10,10,10,10,10, |
1736 | | 10,10,10,10,10,10,10,10, |
1737 | | 10,10,10,10,10,10,10,10, |
1738 | | 10,10,10,10,10,10,10,10, |
1739 | | 10,10,10,10,10,10,10,10, |
1740 | | 10,10,10,10,10,10,10,10, |
1741 | | 10,10,10,10,10,10,10,10, |
1742 | | 10,10,10,10,10,10,10,10, |
1743 | | 10,10,10,10,10,10,10,10, |
1744 | | 10,10,10,10,10,10,10,10, |
1745 | | 10,10,10,10,10,10,10,10, |
1746 | | 10,10,10,10,10,10,10,10, |
1747 | | 10,10,10,10,10,10,10,10, |
1748 | | 10,10,10,10,10,10,10,10, |
1749 | | 10,10,10,10,10,10,10,10, |
1750 | | 10,10,10,10,10,10,10,10, |
1751 | | 10,10,10,10,10,10,10,10, |
1752 | | 10,10,10,10,10,10,10,10, |
1753 | | 10,10,10,10,10,10,10,10, |
1754 | | 10,10,10,10,10,10,10,10, |
1755 | | 10,10,10,10,10,10,10,10, |
1756 | | 10,10,10,10,10,10,10,10, |
1757 | | 10,10,10,10,10,10,10,10, |
1758 | | 10,10,10,10,10,10,10,10, |
1759 | | 10,10,10,10,10,10,10,10, |
1760 | | 10,10,10,10,10,10,10,10, |
1761 | | 10,10,10,10,10,10,10,10, |
1762 | | 10,10,10,10,10,10,10,10, |
1763 | | 10,10,10,10,10,10,10,10, |
1764 | | 10,10,10,10,10,10,10,50,-1}; |
1765 | | const int *headret[]={head1_5,head2_5,head3_5,NULL}; |
1766 | | |
1767 | | fprintf(stderr,"testing max packet segments... "); |
1768 | | test_pack(packets,headret,0,0,0); |
1769 | | } |
1770 | | |
1771 | | { |
1772 | | /* packet that overspans over an entire page */ |
1773 | | const int packets[]={0,100,130049,259,255,-1}; |
1774 | | const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL}; |
1775 | | |
1776 | | fprintf(stderr,"testing very large packets... "); |
1777 | | test_pack(packets,headret,0,0,0); |
1778 | | } |
1779 | | |
1780 | | #ifndef DISABLE_CRC |
1781 | | { |
1782 | | /* test for the libogg 1.1.1 resync in large continuation bug |
1783 | | found by Josh Coalson) */ |
1784 | | const int packets[]={0,100,130049,259,255,-1}; |
1785 | | const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL}; |
1786 | | |
1787 | | fprintf(stderr,"testing continuation resync in very large packets... "); |
1788 | | test_pack(packets,headret,100,2,3); |
1789 | | } |
1790 | | #else |
1791 | | fprintf(stderr,"Skipping continuation resync test due to --disable-crc\n"); |
1792 | | #endif |
1793 | | |
1794 | | { |
1795 | | /* term only page. why not? */ |
1796 | | const int packets[]={0,100,64770,-1}; |
1797 | | const int *headret[]={head1_7,head2_7,head3_7,NULL}; |
1798 | | |
1799 | | fprintf(stderr,"testing zero data page (1 nil packet)... "); |
1800 | | test_pack(packets,headret,0,0,0); |
1801 | | } |
1802 | | |
1803 | | |
1804 | | |
1805 | | { |
1806 | | /* build a bunch of pages for testing */ |
1807 | | unsigned char *data=_ogg_malloc(1024*1024); |
1808 | | int pl[]={0, 1,1,98,4079, 1,1,2954,2057, 76,34,912,0,234,1000,1000, 1000,300,-1}; |
1809 | | int inptr=0,i,j; |
1810 | | ogg_page og[5]; |
1811 | | |
1812 | | ogg_stream_reset(&os_en); |
1813 | | |
1814 | | for(i=0;pl[i]!=-1;i++){ |
1815 | | ogg_packet op; |
1816 | | int len=pl[i]; |
1817 | | |
1818 | | op.packet=data+inptr; |
1819 | | op.bytes=len; |
1820 | | op.e_o_s=(pl[i+1]<0?1:0); |
1821 | | op.granulepos=(i+1)*1000; |
1822 | | |
1823 | | for(j=0;j<len;j++)data[inptr++]=i+j; |
1824 | | ogg_stream_packetin(&os_en,&op); |
1825 | | } |
1826 | | |
1827 | | _ogg_free(data); |
1828 | | |
1829 | | /* retrieve finished pages */ |
1830 | | for(i=0;i<5;i++){ |
1831 | | if(ogg_stream_pageout(&os_en,&og[i])==0){ |
1832 | | fprintf(stderr,"Too few pages output building sync tests!\n"); |
1833 | | exit(1); |
1834 | | } |
1835 | | copy_page(&og[i]); |
1836 | | } |
1837 | | |
1838 | | /* Test lost pages on pagein/packetout: no rollback */ |
1839 | | { |
1840 | | ogg_page temp; |
1841 | | ogg_packet test; |
1842 | | |
1843 | | fprintf(stderr,"Testing loss of pages... "); |
1844 | | |
1845 | | ogg_sync_reset(&oy); |
1846 | | ogg_stream_reset(&os_de); |
1847 | | for(i=0;i<5;i++){ |
1848 | | memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header, |
1849 | | og[i].header_len); |
1850 | | ogg_sync_wrote(&oy,og[i].header_len); |
1851 | | memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len); |
1852 | | ogg_sync_wrote(&oy,og[i].body_len); |
1853 | | } |
1854 | | |
1855 | | ogg_sync_pageout(&oy,&temp); |
1856 | | ogg_stream_pagein(&os_de,&temp); |
1857 | | ogg_sync_pageout(&oy,&temp); |
1858 | | ogg_stream_pagein(&os_de,&temp); |
1859 | | ogg_sync_pageout(&oy,&temp); |
1860 | | /* skip */ |
1861 | | ogg_sync_pageout(&oy,&temp); |
1862 | | ogg_stream_pagein(&os_de,&temp); |
1863 | | |
1864 | | /* do we get the expected results/packets? */ |
1865 | | |
1866 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1867 | | checkpacket(&test,0,0,0); |
1868 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1869 | | checkpacket(&test,1,1,-1); |
1870 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1871 | | checkpacket(&test,1,2,-1); |
1872 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1873 | | checkpacket(&test,98,3,-1); |
1874 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1875 | | checkpacket(&test,4079,4,5000); |
1876 | | if(ogg_stream_packetout(&os_de,&test)!=-1){ |
1877 | | fprintf(stderr,"Error: loss of page did not return error\n"); |
1878 | | exit(1); |
1879 | | } |
1880 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1881 | | checkpacket(&test,76,9,-1); |
1882 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1883 | | checkpacket(&test,34,10,-1); |
1884 | | fprintf(stderr,"ok.\n"); |
1885 | | } |
1886 | | |
1887 | | /* Test lost pages on pagein/packetout: rollback with continuation */ |
1888 | | { |
1889 | | ogg_page temp; |
1890 | | ogg_packet test; |
1891 | | |
1892 | | fprintf(stderr,"Testing loss of pages (rollback required)... "); |
1893 | | |
1894 | | ogg_sync_reset(&oy); |
1895 | | ogg_stream_reset(&os_de); |
1896 | | for(i=0;i<5;i++){ |
1897 | | memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header, |
1898 | | og[i].header_len); |
1899 | | ogg_sync_wrote(&oy,og[i].header_len); |
1900 | | memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len); |
1901 | | ogg_sync_wrote(&oy,og[i].body_len); |
1902 | | } |
1903 | | |
1904 | | ogg_sync_pageout(&oy,&temp); |
1905 | | ogg_stream_pagein(&os_de,&temp); |
1906 | | ogg_sync_pageout(&oy,&temp); |
1907 | | ogg_stream_pagein(&os_de,&temp); |
1908 | | ogg_sync_pageout(&oy,&temp); |
1909 | | ogg_stream_pagein(&os_de,&temp); |
1910 | | ogg_sync_pageout(&oy,&temp); |
1911 | | /* skip */ |
1912 | | ogg_sync_pageout(&oy,&temp); |
1913 | | ogg_stream_pagein(&os_de,&temp); |
1914 | | |
1915 | | /* do we get the expected results/packets? */ |
1916 | | |
1917 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1918 | | checkpacket(&test,0,0,0); |
1919 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1920 | | checkpacket(&test,1,1,-1); |
1921 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1922 | | checkpacket(&test,1,2,-1); |
1923 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1924 | | checkpacket(&test,98,3,-1); |
1925 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1926 | | checkpacket(&test,4079,4,5000); |
1927 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1928 | | checkpacket(&test,1,5,-1); |
1929 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1930 | | checkpacket(&test,1,6,-1); |
1931 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1932 | | checkpacket(&test,2954,7,-1); |
1933 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1934 | | checkpacket(&test,2057,8,9000); |
1935 | | if(ogg_stream_packetout(&os_de,&test)!=-1){ |
1936 | | fprintf(stderr,"Error: loss of page did not return error\n"); |
1937 | | exit(1); |
1938 | | } |
1939 | | if(ogg_stream_packetout(&os_de,&test)!=1)error(); |
1940 | | checkpacket(&test,300,17,18000); |
1941 | | fprintf(stderr,"ok.\n"); |
1942 | | } |
1943 | | |
1944 | | /* the rest only test sync */ |
1945 | | { |
1946 | | ogg_page og_de; |
1947 | | /* Test fractional page inputs: incomplete capture */ |
1948 | | fprintf(stderr,"Testing sync on partial inputs... "); |
1949 | | ogg_sync_reset(&oy); |
1950 | | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, |
1951 | | 3); |
1952 | | ogg_sync_wrote(&oy,3); |
1953 | | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
1954 | | |
1955 | | /* Test fractional page inputs: incomplete fixed header */ |
1956 | | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+3, |
1957 | | 20); |
1958 | | ogg_sync_wrote(&oy,20); |
1959 | | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
1960 | | |
1961 | | /* Test fractional page inputs: incomplete header */ |
1962 | | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+23, |
1963 | | 5); |
1964 | | ogg_sync_wrote(&oy,5); |
1965 | | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
1966 | | |
1967 | | /* Test fractional page inputs: incomplete body */ |
1968 | | |
1969 | | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+28, |
1970 | | og[1].header_len-28); |
1971 | | ogg_sync_wrote(&oy,og[1].header_len-28); |
1972 | | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
1973 | | |
1974 | | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,1000); |
1975 | | ogg_sync_wrote(&oy,1000); |
1976 | | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
1977 | | |
1978 | | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body+1000, |
1979 | | og[1].body_len-1000); |
1980 | | ogg_sync_wrote(&oy,og[1].body_len-1000); |
1981 | | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
1982 | | |
1983 | | fprintf(stderr,"ok.\n"); |
1984 | | } |
1985 | | |
1986 | | /* Test fractional page inputs: page + incomplete capture */ |
1987 | | { |
1988 | | ogg_page og_de; |
1989 | | fprintf(stderr,"Testing sync on 1+partial inputs... "); |
1990 | | ogg_sync_reset(&oy); |
1991 | | |
1992 | | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, |
1993 | | og[1].header_len); |
1994 | | ogg_sync_wrote(&oy,og[1].header_len); |
1995 | | |
1996 | | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, |
1997 | | og[1].body_len); |
1998 | | ogg_sync_wrote(&oy,og[1].body_len); |
1999 | | |
2000 | | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, |
2001 | | 20); |
2002 | | ogg_sync_wrote(&oy,20); |
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[1].header_len),og[1].header+20, |
2007 | | og[1].header_len-20); |
2008 | | ogg_sync_wrote(&oy,og[1].header_len-20); |
2009 | | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, |
2010 | | og[1].body_len); |
2011 | | ogg_sync_wrote(&oy,og[1].body_len); |
2012 | | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
2013 | | |
2014 | | fprintf(stderr,"ok.\n"); |
2015 | | } |
2016 | | |
2017 | | /* Test recapture: garbage + page */ |
2018 | | { |
2019 | | ogg_page og_de; |
2020 | | fprintf(stderr,"Testing search for capture... "); |
2021 | | ogg_sync_reset(&oy); |
2022 | | |
2023 | | /* 'garbage' */ |
2024 | | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, |
2025 | | og[1].body_len); |
2026 | | ogg_sync_wrote(&oy,og[1].body_len); |
2027 | | |
2028 | | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, |
2029 | | og[1].header_len); |
2030 | | ogg_sync_wrote(&oy,og[1].header_len); |
2031 | | |
2032 | | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, |
2033 | | og[1].body_len); |
2034 | | ogg_sync_wrote(&oy,og[1].body_len); |
2035 | | |
2036 | | memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header, |
2037 | | 20); |
2038 | | ogg_sync_wrote(&oy,20); |
2039 | | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
2040 | | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
2041 | | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
2042 | | |
2043 | | memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header+20, |
2044 | | og[2].header_len-20); |
2045 | | ogg_sync_wrote(&oy,og[2].header_len-20); |
2046 | | memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body, |
2047 | | og[2].body_len); |
2048 | | ogg_sync_wrote(&oy,og[2].body_len); |
2049 | | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
2050 | | |
2051 | | fprintf(stderr,"ok.\n"); |
2052 | | } |
2053 | | |
2054 | | #ifndef DISABLE_CRC |
2055 | | /* Test recapture: page + garbage + page */ |
2056 | | { |
2057 | | ogg_page og_de; |
2058 | | fprintf(stderr,"Testing recapture... "); |
2059 | | ogg_sync_reset(&oy); |
2060 | | |
2061 | | memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, |
2062 | | og[1].header_len); |
2063 | | ogg_sync_wrote(&oy,og[1].header_len); |
2064 | | |
2065 | | memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, |
2066 | | og[1].body_len); |
2067 | | ogg_sync_wrote(&oy,og[1].body_len); |
2068 | | |
2069 | | memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header, |
2070 | | og[2].header_len); |
2071 | | ogg_sync_wrote(&oy,og[2].header_len); |
2072 | | |
2073 | | memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header, |
2074 | | og[2].header_len); |
2075 | | ogg_sync_wrote(&oy,og[2].header_len); |
2076 | | |
2077 | | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
2078 | | |
2079 | | memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body, |
2080 | | og[2].body_len-5); |
2081 | | ogg_sync_wrote(&oy,og[2].body_len-5); |
2082 | | |
2083 | | memcpy(ogg_sync_buffer(&oy,og[3].header_len),og[3].header, |
2084 | | og[3].header_len); |
2085 | | ogg_sync_wrote(&oy,og[3].header_len); |
2086 | | |
2087 | | memcpy(ogg_sync_buffer(&oy,og[3].body_len),og[3].body, |
2088 | | og[3].body_len); |
2089 | | ogg_sync_wrote(&oy,og[3].body_len); |
2090 | | |
2091 | | if(ogg_sync_pageout(&oy,&og_de)>0)error(); |
2092 | | if(ogg_sync_pageout(&oy,&og_de)<=0)error(); |
2093 | | |
2094 | | fprintf(stderr,"ok.\n"); |
2095 | | } |
2096 | | #else |
2097 | | fprintf(stderr,"Skipping recapture test due to --disable-crc\n"); |
2098 | | #endif |
2099 | | |
2100 | | /* Free page data that was previously copied */ |
2101 | | { |
2102 | | for(i=0;i<5;i++){ |
2103 | | free_page(&og[i]); |
2104 | | } |
2105 | | } |
2106 | | } |
2107 | | ogg_sync_clear(&oy); |
2108 | | ogg_stream_clear(&os_en); |
2109 | | ogg_stream_clear(&os_de); |
2110 | | |
2111 | | return(0); |
2112 | | } |
2113 | | |
2114 | | #endif |