2115 lines
65 KiB
C
2115 lines
65 KiB
C
/********************************************************************
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* *
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* THIS FILE IS PART OF THE Ogg CONTAINER SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* *
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* THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2018 *
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* by the Xiph.Org Foundation http://www.xiph.org/ *
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* *
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********************************************************************
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function: code raw packets into framed OggSquish stream and
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decode Ogg streams back into raw packets
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note: The CRC code is directly derived from public domain code by
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Ross Williams (ross@guest.adelaide.edu.au). See docs/framing.html
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for details.
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********************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <limits.h>
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#include <string.h>
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#include <ogg/ogg.h>
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/* A complete description of Ogg framing exists in docs/framing.html */
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int ogg_page_version(const ogg_page *og){
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return((int)(og->header[4]));
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}
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int ogg_page_continued(const ogg_page *og){
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return((int)(og->header[5]&0x01));
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}
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int ogg_page_bos(const ogg_page *og){
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return((int)(og->header[5]&0x02));
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}
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int ogg_page_eos(const ogg_page *og){
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return((int)(og->header[5]&0x04));
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}
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ogg_int64_t ogg_page_granulepos(const ogg_page *og){
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unsigned char *page=og->header;
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ogg_uint64_t granulepos=page[13]&(0xff);
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granulepos= (granulepos<<8)|(page[12]&0xff);
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granulepos= (granulepos<<8)|(page[11]&0xff);
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granulepos= (granulepos<<8)|(page[10]&0xff);
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granulepos= (granulepos<<8)|(page[9]&0xff);
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granulepos= (granulepos<<8)|(page[8]&0xff);
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granulepos= (granulepos<<8)|(page[7]&0xff);
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granulepos= (granulepos<<8)|(page[6]&0xff);
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return((ogg_int64_t)granulepos);
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}
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int ogg_page_serialno(const ogg_page *og){
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return((int)((ogg_uint32_t)og->header[14]) |
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((ogg_uint32_t)og->header[15]<<8) |
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((ogg_uint32_t)og->header[16]<<16) |
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((ogg_uint32_t)og->header[17]<<24));
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}
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long ogg_page_pageno(const ogg_page *og){
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return((long)((ogg_uint32_t)og->header[18]) |
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((ogg_uint32_t)og->header[19]<<8) |
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((ogg_uint32_t)og->header[20]<<16) |
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((ogg_uint32_t)og->header[21]<<24));
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}
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/* returns the number of packets that are completed on this page (if
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the leading packet is begun on a previous page, but ends on this
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page, it's counted */
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/* NOTE:
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If a page consists of a packet begun on a previous page, and a new
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packet begun (but not completed) on this page, the return will be:
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ogg_page_packets(page) ==1,
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ogg_page_continued(page) !=0
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If a page happens to be a single packet that was begun on a
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previous page, and spans to the next page (in the case of a three or
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more page packet), the return will be:
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ogg_page_packets(page) ==0,
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ogg_page_continued(page) !=0
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*/
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int ogg_page_packets(const ogg_page *og){
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int i,n=og->header[26],count=0;
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for(i=0;i<n;i++)
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if(og->header[27+i]<255)count++;
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return(count);
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}
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#if 0
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/* helper to initialize lookup for direct-table CRC (illustrative; we
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use the static init in crctable.h) */
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static void _ogg_crc_init(){
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int i, j;
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ogg_uint32_t polynomial, crc;
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polynomial = 0x04c11db7; /* The same as the ethernet generator
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polynomial, although we use an
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unreflected alg and an init/final
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of 0, not 0xffffffff */
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for (i = 0; i <= 0xFF; i++){
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crc = i << 24;
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for (j = 0; j < 8; j++)
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crc = (crc << 1) ^ (crc & (1 << 31) ? polynomial : 0);
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crc_lookup[0][i] = crc;
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}
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for (i = 0; i <= 0xFF; i++)
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for (j = 1; j < 8; j++)
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crc_lookup[j][i] = crc_lookup[0][(crc_lookup[j - 1][i] >> 24) & 0xFF] ^ (crc_lookup[j - 1][i] << 8);
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}
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#endif
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#include "crctable.h"
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/* init the encode/decode logical stream state */
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int ogg_stream_init(ogg_stream_state *os,int serialno){
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if(os){
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memset(os,0,sizeof(*os));
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os->body_storage=16*1024;
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os->lacing_storage=1024;
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os->body_data=_ogg_malloc(os->body_storage*sizeof(*os->body_data));
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os->lacing_vals=_ogg_malloc(os->lacing_storage*sizeof(*os->lacing_vals));
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os->granule_vals=_ogg_malloc(os->lacing_storage*sizeof(*os->granule_vals));
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if(!os->body_data || !os->lacing_vals || !os->granule_vals){
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ogg_stream_clear(os);
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return -1;
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}
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os->serialno=serialno;
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return(0);
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}
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return(-1);
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}
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/* async/delayed error detection for the ogg_stream_state */
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int ogg_stream_check(ogg_stream_state *os){
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if(!os || !os->body_data) return -1;
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return 0;
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}
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/* _clear does not free os, only the non-flat storage within */
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int ogg_stream_clear(ogg_stream_state *os){
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if(os){
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if(os->body_data)_ogg_free(os->body_data);
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if(os->lacing_vals)_ogg_free(os->lacing_vals);
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if(os->granule_vals)_ogg_free(os->granule_vals);
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memset(os,0,sizeof(*os));
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}
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return(0);
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}
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int ogg_stream_destroy(ogg_stream_state *os){
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if(os){
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ogg_stream_clear(os);
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_ogg_free(os);
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}
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return(0);
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}
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/* Helpers for ogg_stream_encode; this keeps the structure and
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what's happening fairly clear */
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static int _os_body_expand(ogg_stream_state *os,long needed){
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if(os->body_storage-needed<=os->body_fill){
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long body_storage;
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void *ret;
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if(os->body_storage>LONG_MAX-needed){
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ogg_stream_clear(os);
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return -1;
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}
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body_storage=os->body_storage+needed;
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if(body_storage<LONG_MAX-1024)body_storage+=1024;
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ret=_ogg_realloc(os->body_data,body_storage*sizeof(*os->body_data));
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if(!ret){
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ogg_stream_clear(os);
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return -1;
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}
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os->body_storage=body_storage;
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os->body_data=ret;
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}
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return 0;
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}
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static int _os_lacing_expand(ogg_stream_state *os,long needed){
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if(os->lacing_storage-needed<=os->lacing_fill){
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long lacing_storage;
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void *ret;
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if(os->lacing_storage>LONG_MAX-needed){
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ogg_stream_clear(os);
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return -1;
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}
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lacing_storage=os->lacing_storage+needed;
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if(lacing_storage<LONG_MAX-32)lacing_storage+=32;
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ret=_ogg_realloc(os->lacing_vals,lacing_storage*sizeof(*os->lacing_vals));
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if(!ret){
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ogg_stream_clear(os);
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return -1;
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}
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os->lacing_vals=ret;
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ret=_ogg_realloc(os->granule_vals,lacing_storage*
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sizeof(*os->granule_vals));
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if(!ret){
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ogg_stream_clear(os);
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return -1;
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}
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os->granule_vals=ret;
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os->lacing_storage=lacing_storage;
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}
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return 0;
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}
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/* checksum the page */
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/* Direct table CRC; note that this will be faster in the future if we
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perform the checksum simultaneously with other copies */
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static ogg_uint32_t _os_update_crc(ogg_uint32_t crc, unsigned char *buffer, int size){
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while (size>=8){
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crc^=((ogg_uint32_t)buffer[0]<<24)|((ogg_uint32_t)buffer[1]<<16)|((ogg_uint32_t)buffer[2]<<8)|((ogg_uint32_t)buffer[3]);
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crc=crc_lookup[7][ crc>>24 ]^crc_lookup[6][(crc>>16)&0xFF]^
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crc_lookup[5][(crc>> 8)&0xFF]^crc_lookup[4][ crc &0xFF]^
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crc_lookup[3][buffer[4] ]^crc_lookup[2][buffer[5] ]^
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crc_lookup[1][buffer[6] ]^crc_lookup[0][buffer[7] ];
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buffer+=8;
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size-=8;
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}
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while (size--)
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crc=(crc<<8)^crc_lookup[0][((crc >> 24)&0xff)^*buffer++];
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return crc;
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}
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void ogg_page_checksum_set(ogg_page *og){
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if(og){
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ogg_uint32_t crc_reg=0;
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/* safety; needed for API behavior, but not framing code */
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og->header[22]=0;
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og->header[23]=0;
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og->header[24]=0;
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og->header[25]=0;
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crc_reg=_os_update_crc(crc_reg,og->header,og->header_len);
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crc_reg=_os_update_crc(crc_reg,og->body,og->body_len);
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og->header[22]=(unsigned char)(crc_reg&0xff);
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og->header[23]=(unsigned char)((crc_reg>>8)&0xff);
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og->header[24]=(unsigned char)((crc_reg>>16)&0xff);
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og->header[25]=(unsigned char)((crc_reg>>24)&0xff);
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}
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}
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/* submit data to the internal buffer of the framing engine */
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int ogg_stream_iovecin(ogg_stream_state *os, ogg_iovec_t *iov, int count,
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long e_o_s, ogg_int64_t granulepos){
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long bytes = 0, lacing_vals;
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int i;
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if(ogg_stream_check(os)) return -1;
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if(!iov) return 0;
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for (i = 0; i < count; ++i){
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if(iov[i].iov_len>LONG_MAX) return -1;
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if(bytes>LONG_MAX-(long)iov[i].iov_len) return -1;
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bytes += (long)iov[i].iov_len;
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}
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lacing_vals=bytes/255+1;
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if(os->body_returned){
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/* advance packet data according to the body_returned pointer. We
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had to keep it around to return a pointer into the buffer last
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call */
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os->body_fill-=os->body_returned;
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if(os->body_fill)
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memmove(os->body_data,os->body_data+os->body_returned,
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os->body_fill);
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os->body_returned=0;
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}
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/* make sure we have the buffer storage */
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if(_os_body_expand(os,bytes) || _os_lacing_expand(os,lacing_vals))
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return -1;
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/* Copy in the submitted packet. Yes, the copy is a waste; this is
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the liability of overly clean abstraction for the time being. It
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will actually be fairly easy to eliminate the extra copy in the
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future */
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for (i = 0; i < count; ++i) {
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memcpy(os->body_data+os->body_fill, iov[i].iov_base, iov[i].iov_len);
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os->body_fill += (int)iov[i].iov_len;
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}
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/* Store lacing vals for this packet */
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for(i=0;i<lacing_vals-1;i++){
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os->lacing_vals[os->lacing_fill+i]=255;
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os->granule_vals[os->lacing_fill+i]=os->granulepos;
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}
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os->lacing_vals[os->lacing_fill+i]=bytes%255;
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os->granulepos=os->granule_vals[os->lacing_fill+i]=granulepos;
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/* flag the first segment as the beginning of the packet */
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os->lacing_vals[os->lacing_fill]|= 0x100;
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os->lacing_fill+=lacing_vals;
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/* for the sake of completeness */
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os->packetno++;
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if(e_o_s)os->e_o_s=1;
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return(0);
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}
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int ogg_stream_packetin(ogg_stream_state *os,ogg_packet *op){
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ogg_iovec_t iov;
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iov.iov_base = op->packet;
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iov.iov_len = op->bytes;
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return ogg_stream_iovecin(os, &iov, 1, op->e_o_s, op->granulepos);
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}
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/* Conditionally flush a page; force==0 will only flush nominal-size
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pages, force==1 forces us to flush a page regardless of page size
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so long as there's any data available at all. */
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static int ogg_stream_flush_i(ogg_stream_state *os,ogg_page *og, int force, int nfill){
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int i;
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int vals=0;
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int maxvals=(os->lacing_fill>255?255:os->lacing_fill);
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int bytes=0;
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long acc=0;
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ogg_int64_t granule_pos=-1;
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if(ogg_stream_check(os)) return(0);
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if(maxvals==0) return(0);
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/* construct a page */
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/* decide how many segments to include */
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/* If this is the initial header case, the first page must only include
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the initial header packet */
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if(os->b_o_s==0){ /* 'initial header page' case */
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granule_pos=0;
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for(vals=0;vals<maxvals;vals++){
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if((os->lacing_vals[vals]&0x0ff)<255){
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vals++;
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break;
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}
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}
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}else{
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/* The extra packets_done, packet_just_done logic here attempts to do two things:
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1) Don't unnecessarily span pages.
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2) Unless necessary, don't flush pages if there are less than four packets on
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them; this expands page size to reduce unnecessary overhead if incoming packets
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are large.
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These are not necessary behaviors, just 'always better than naive flushing'
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without requiring an application to explicitly request a specific optimized
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behavior. We'll want an explicit behavior setup pathway eventually as well. */
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int packets_done=0;
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int packet_just_done=0;
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for(vals=0;vals<maxvals;vals++){
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if(acc>nfill && packet_just_done>=4){
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force=1;
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break;
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}
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acc+=os->lacing_vals[vals]&0x0ff;
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if((os->lacing_vals[vals]&0xff)<255){
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granule_pos=os->granule_vals[vals];
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packet_just_done=++packets_done;
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}else
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packet_just_done=0;
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}
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if(vals==255)force=1;
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}
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if(!force) return(0);
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/* construct the header in temp storage */
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memcpy(os->header,"OggS",4);
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/* stream structure version */
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os->header[4]=0x00;
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/* continued packet flag? */
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os->header[5]=0x00;
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if((os->lacing_vals[0]&0x100)==0)os->header[5]|=0x01;
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/* first page flag? */
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if(os->b_o_s==0)os->header[5]|=0x02;
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/* last page flag? */
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if(os->e_o_s && os->lacing_fill==vals)os->header[5]|=0x04;
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os->b_o_s=1;
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/* 64 bits of PCM position */
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for(i=6;i<14;i++){
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os->header[i]=(unsigned char)(granule_pos&0xff);
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granule_pos>>=8;
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}
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/* 32 bits of stream serial number */
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{
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long serialno=os->serialno;
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for(i=14;i<18;i++){
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os->header[i]=(unsigned char)(serialno&0xff);
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serialno>>=8;
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}
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}
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/* 32 bits of page counter (we have both counter and page header
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because this val can roll over) */
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if(os->pageno==-1)os->pageno=0; /* because someone called
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stream_reset; this would be a
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strange thing to do in an
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encode stream, but it has
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plausible uses */
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{
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long pageno=os->pageno++;
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for(i=18;i<22;i++){
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os->header[i]=(unsigned char)(pageno&0xff);
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pageno>>=8;
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}
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}
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/* zero for computation; filled in later */
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os->header[22]=0;
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os->header[23]=0;
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os->header[24]=0;
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os->header[25]=0;
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/* segment table */
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os->header[26]=(unsigned char)(vals&0xff);
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for(i=0;i<vals;i++)
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bytes+=os->header[i+27]=(unsigned char)(os->lacing_vals[i]&0xff);
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/* set pointers in the ogg_page struct */
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og->header=os->header;
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og->header_len=os->header_fill=vals+27;
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og->body=os->body_data+os->body_returned;
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og->body_len=bytes;
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/* advance the lacing data and set the body_returned pointer */
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os->lacing_fill-=vals;
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memmove(os->lacing_vals,os->lacing_vals+vals,os->lacing_fill*sizeof(*os->lacing_vals));
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memmove(os->granule_vals,os->granule_vals+vals,os->lacing_fill*sizeof(*os->granule_vals));
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os->body_returned+=bytes;
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/* calculate the checksum */
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ogg_page_checksum_set(og);
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/* done */
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return(1);
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}
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/* This will flush remaining packets into a page (returning nonzero),
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even if there is not enough data to trigger a flush normally
|
|
(undersized page). If there are no packets or partial packets to
|
|
flush, ogg_stream_flush returns 0. Note that ogg_stream_flush will
|
|
try to flush a normal sized page like ogg_stream_pageout; a call to
|
|
ogg_stream_flush does not guarantee that all packets have flushed.
|
|
Only a return value of 0 from ogg_stream_flush indicates all packet
|
|
data is flushed into pages.
|
|
|
|
since ogg_stream_flush will flush the last page in a stream even if
|
|
it's undersized, you almost certainly want to use ogg_stream_pageout
|
|
(and *not* ogg_stream_flush) unless you specifically need to flush
|
|
a page regardless of size in the middle of a stream. */
|
|
|
|
int ogg_stream_flush(ogg_stream_state *os,ogg_page *og){
|
|
return ogg_stream_flush_i(os,og,1,4096);
|
|
}
|
|
|
|
/* Like the above, but an argument is provided to adjust the nominal
|
|
page size for applications which are smart enough to provide their
|
|
own delay based flushing */
|
|
|
|
int ogg_stream_flush_fill(ogg_stream_state *os,ogg_page *og, int nfill){
|
|
return ogg_stream_flush_i(os,og,1,nfill);
|
|
}
|
|
|
|
/* This constructs pages from buffered packet segments. The pointers
|
|
returned are to static buffers; do not free. The returned buffers are
|
|
good only until the next call (using the same ogg_stream_state) */
|
|
|
|
int ogg_stream_pageout(ogg_stream_state *os, ogg_page *og){
|
|
int force=0;
|
|
if(ogg_stream_check(os)) return 0;
|
|
|
|
if((os->e_o_s&&os->lacing_fill) || /* 'were done, now flush' case */
|
|
(os->lacing_fill&&!os->b_o_s)) /* 'initial header page' case */
|
|
force=1;
|
|
|
|
return(ogg_stream_flush_i(os,og,force,4096));
|
|
}
|
|
|
|
/* Like the above, but an argument is provided to adjust the nominal
|
|
page size for applications which are smart enough to provide their
|
|
own delay based flushing */
|
|
|
|
int ogg_stream_pageout_fill(ogg_stream_state *os, ogg_page *og, int nfill){
|
|
int force=0;
|
|
if(ogg_stream_check(os)) return 0;
|
|
|
|
if((os->e_o_s&&os->lacing_fill) || /* 'were done, now flush' case */
|
|
(os->lacing_fill&&!os->b_o_s)) /* 'initial header page' case */
|
|
force=1;
|
|
|
|
return(ogg_stream_flush_i(os,og,force,nfill));
|
|
}
|
|
|
|
int ogg_stream_eos(ogg_stream_state *os){
|
|
if(ogg_stream_check(os)) return 1;
|
|
return os->e_o_s;
|
|
}
|
|
|
|
/* DECODING PRIMITIVES: packet streaming layer **********************/
|
|
|
|
/* This has two layers to place more of the multi-serialno and paging
|
|
control in the application's hands. First, we expose a data buffer
|
|
using ogg_sync_buffer(). The app either copies into the
|
|
buffer, or passes it directly to read(), etc. We then call
|
|
ogg_sync_wrote() to tell how many bytes we just added.
|
|
|
|
Pages are returned (pointers into the buffer in ogg_sync_state)
|
|
by ogg_sync_pageout(). The page is then submitted to
|
|
ogg_stream_pagein() along with the appropriate
|
|
ogg_stream_state* (ie, matching serialno). We then get raw
|
|
packets out calling ogg_stream_packetout() with a
|
|
ogg_stream_state. */
|
|
|
|
/* initialize the struct to a known state */
|
|
int ogg_sync_init(ogg_sync_state *oy){
|
|
if(oy){
|
|
oy->storage = -1; /* used as a readiness flag */
|
|
memset(oy,0,sizeof(*oy));
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
/* clear non-flat storage within */
|
|
int ogg_sync_clear(ogg_sync_state *oy){
|
|
if(oy){
|
|
if(oy->data)_ogg_free(oy->data);
|
|
memset(oy,0,sizeof(*oy));
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
int ogg_sync_destroy(ogg_sync_state *oy){
|
|
if(oy){
|
|
ogg_sync_clear(oy);
|
|
_ogg_free(oy);
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
int ogg_sync_check(ogg_sync_state *oy){
|
|
if(oy->storage<0) return -1;
|
|
return 0;
|
|
}
|
|
|
|
char *ogg_sync_buffer(ogg_sync_state *oy, long size){
|
|
if(ogg_sync_check(oy)) return NULL;
|
|
|
|
/* first, clear out any space that has been previously returned */
|
|
if(oy->returned){
|
|
oy->fill-=oy->returned;
|
|
if(oy->fill>0)
|
|
memmove(oy->data,oy->data+oy->returned,oy->fill);
|
|
oy->returned=0;
|
|
}
|
|
|
|
if(size>oy->storage-oy->fill){
|
|
/* We need to extend the internal buffer */
|
|
long newsize;
|
|
void *ret;
|
|
|
|
if(size>INT_MAX-4096-oy->fill){
|
|
ogg_sync_clear(oy);
|
|
return NULL;
|
|
}
|
|
newsize=size+oy->fill+4096; /* an extra page to be nice */
|
|
if(oy->data)
|
|
ret=_ogg_realloc(oy->data,newsize);
|
|
else
|
|
ret=_ogg_malloc(newsize);
|
|
if(!ret){
|
|
ogg_sync_clear(oy);
|
|
return NULL;
|
|
}
|
|
oy->data=ret;
|
|
oy->storage=newsize;
|
|
}
|
|
|
|
/* expose a segment at least as large as requested at the fill mark */
|
|
return((char *)oy->data+oy->fill);
|
|
}
|
|
|
|
int ogg_sync_wrote(ogg_sync_state *oy, long bytes){
|
|
if(ogg_sync_check(oy))return -1;
|
|
if(oy->fill+bytes>oy->storage)return -1;
|
|
oy->fill+=bytes;
|
|
return(0);
|
|
}
|
|
|
|
/* sync the stream. This is meant to be useful for finding page
|
|
boundaries.
|
|
|
|
return values for this:
|
|
-n) skipped n bytes
|
|
0) page not ready; more data (no bytes skipped)
|
|
n) page synced at current location; page length n bytes
|
|
|
|
*/
|
|
|
|
long ogg_sync_pageseek(ogg_sync_state *oy,ogg_page *og){
|
|
unsigned char *page=oy->data+oy->returned;
|
|
unsigned char *next;
|
|
long bytes=oy->fill-oy->returned;
|
|
|
|
if(ogg_sync_check(oy))return 0;
|
|
|
|
if(oy->headerbytes==0){
|
|
int headerbytes,i;
|
|
if(bytes<27)return(0); /* not enough for a header */
|
|
|
|
/* verify capture pattern */
|
|
if(memcmp(page,"OggS",4))goto sync_fail;
|
|
|
|
headerbytes=page[26]+27;
|
|
if(bytes<headerbytes)return(0); /* not enough for header + seg table */
|
|
|
|
/* count up body length in the segment table */
|
|
|
|
for(i=0;i<page[26];i++)
|
|
oy->bodybytes+=page[27+i];
|
|
oy->headerbytes=headerbytes;
|
|
}
|
|
|
|
if(oy->bodybytes+oy->headerbytes>bytes)return(0);
|
|
|
|
/* The whole test page is buffered. Verify the checksum */
|
|
{
|
|
/* Grab the checksum bytes, set the header field to zero */
|
|
char chksum[4];
|
|
ogg_page log;
|
|
|
|
memcpy(chksum,page+22,4);
|
|
memset(page+22,0,4);
|
|
|
|
/* set up a temp page struct and recompute the checksum */
|
|
log.header=page;
|
|
log.header_len=oy->headerbytes;
|
|
log.body=page+oy->headerbytes;
|
|
log.body_len=oy->bodybytes;
|
|
ogg_page_checksum_set(&log);
|
|
|
|
/* Compare */
|
|
if(memcmp(chksum,page+22,4)){
|
|
/* D'oh. Mismatch! Corrupt page (or miscapture and not a page
|
|
at all) */
|
|
/* replace the computed checksum with the one actually read in */
|
|
memcpy(page+22,chksum,4);
|
|
|
|
#ifndef DISABLE_CRC
|
|
/* Bad checksum. Lose sync */
|
|
goto sync_fail;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
/* yes, have a whole page all ready to go */
|
|
{
|
|
if(og){
|
|
og->header=page;
|
|
og->header_len=oy->headerbytes;
|
|
og->body=page+oy->headerbytes;
|
|
og->body_len=oy->bodybytes;
|
|
}
|
|
|
|
oy->unsynced=0;
|
|
oy->returned+=(bytes=oy->headerbytes+oy->bodybytes);
|
|
oy->headerbytes=0;
|
|
oy->bodybytes=0;
|
|
return(bytes);
|
|
}
|
|
|
|
sync_fail:
|
|
|
|
oy->headerbytes=0;
|
|
oy->bodybytes=0;
|
|
|
|
/* search for possible capture */
|
|
next=memchr(page+1,'O',bytes-1);
|
|
if(!next)
|
|
next=oy->data+oy->fill;
|
|
|
|
oy->returned=(int)(next-oy->data);
|
|
return((long)-(next-page));
|
|
}
|
|
|
|
/* sync the stream and get a page. Keep trying until we find a page.
|
|
Suppress 'sync errors' after reporting the first.
|
|
|
|
return values:
|
|
-1) recapture (hole in data)
|
|
0) need more data
|
|
1) page returned
|
|
|
|
Returns pointers into buffered data; invalidated by next call to
|
|
_stream, _clear, _init, or _buffer */
|
|
|
|
int ogg_sync_pageout(ogg_sync_state *oy, ogg_page *og){
|
|
|
|
if(ogg_sync_check(oy))return 0;
|
|
|
|
/* all we need to do is verify a page at the head of the stream
|
|
buffer. If it doesn't verify, we look for the next potential
|
|
frame */
|
|
|
|
for(;;){
|
|
long ret=ogg_sync_pageseek(oy,og);
|
|
if(ret>0){
|
|
/* have a page */
|
|
return(1);
|
|
}
|
|
if(ret==0){
|
|
/* need more data */
|
|
return(0);
|
|
}
|
|
|
|
/* head did not start a synced page... skipped some bytes */
|
|
if(!oy->unsynced){
|
|
oy->unsynced=1;
|
|
return(-1);
|
|
}
|
|
|
|
/* loop. keep looking */
|
|
|
|
}
|
|
}
|
|
|
|
/* add the incoming page to the stream state; we decompose the page
|
|
into packet segments here as well. */
|
|
|
|
int ogg_stream_pagein(ogg_stream_state *os, ogg_page *og){
|
|
unsigned char *header=og->header;
|
|
unsigned char *body=og->body;
|
|
long bodysize=og->body_len;
|
|
int segptr=0;
|
|
|
|
int version=ogg_page_version(og);
|
|
int continued=ogg_page_continued(og);
|
|
int bos=ogg_page_bos(og);
|
|
int eos=ogg_page_eos(og);
|
|
ogg_int64_t granulepos=ogg_page_granulepos(og);
|
|
int serialno=ogg_page_serialno(og);
|
|
long pageno=ogg_page_pageno(og);
|
|
int segments=header[26];
|
|
|
|
if(ogg_stream_check(os)) return -1;
|
|
|
|
/* clean up 'returned data' */
|
|
{
|
|
long lr=os->lacing_returned;
|
|
long br=os->body_returned;
|
|
|
|
/* body data */
|
|
if(br){
|
|
os->body_fill-=br;
|
|
if(os->body_fill)
|
|
memmove(os->body_data,os->body_data+br,os->body_fill);
|
|
os->body_returned=0;
|
|
}
|
|
|
|
if(lr){
|
|
/* segment table */
|
|
if(os->lacing_fill-lr){
|
|
memmove(os->lacing_vals,os->lacing_vals+lr,
|
|
(os->lacing_fill-lr)*sizeof(*os->lacing_vals));
|
|
memmove(os->granule_vals,os->granule_vals+lr,
|
|
(os->lacing_fill-lr)*sizeof(*os->granule_vals));
|
|
}
|
|
os->lacing_fill-=lr;
|
|
os->lacing_packet-=lr;
|
|
os->lacing_returned=0;
|
|
}
|
|
}
|
|
|
|
/* check the serial number */
|
|
if(serialno!=os->serialno)return(-1);
|
|
if(version>0)return(-1);
|
|
|
|
if(_os_lacing_expand(os,segments+1)) return -1;
|
|
|
|
/* are we in sequence? */
|
|
if(pageno!=os->pageno){
|
|
int i;
|
|
|
|
/* unroll previous partial packet (if any) */
|
|
for(i=os->lacing_packet;i<os->lacing_fill;i++)
|
|
os->body_fill-=os->lacing_vals[i]&0xff;
|
|
os->lacing_fill=os->lacing_packet;
|
|
|
|
/* make a note of dropped data in segment table */
|
|
if(os->pageno!=-1){
|
|
os->lacing_vals[os->lacing_fill++]=0x400;
|
|
os->lacing_packet++;
|
|
}
|
|
}
|
|
|
|
/* are we a 'continued packet' page? If so, we may need to skip
|
|
some segments */
|
|
if(continued){
|
|
if(os->lacing_fill<1 ||
|
|
(os->lacing_vals[os->lacing_fill-1]&0xff)<255 ||
|
|
os->lacing_vals[os->lacing_fill-1]==0x400){
|
|
bos=0;
|
|
for(;segptr<segments;segptr++){
|
|
int val=header[27+segptr];
|
|
body+=val;
|
|
bodysize-=val;
|
|
if(val<255){
|
|
segptr++;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if(bodysize){
|
|
if(_os_body_expand(os,bodysize)) return -1;
|
|
memcpy(os->body_data+os->body_fill,body,bodysize);
|
|
os->body_fill+=bodysize;
|
|
}
|
|
|
|
{
|
|
int saved=-1;
|
|
while(segptr<segments){
|
|
int val=header[27+segptr];
|
|
os->lacing_vals[os->lacing_fill]=val;
|
|
os->granule_vals[os->lacing_fill]=-1;
|
|
|
|
if(bos){
|
|
os->lacing_vals[os->lacing_fill]|=0x100;
|
|
bos=0;
|
|
}
|
|
|
|
if(val<255)saved=os->lacing_fill;
|
|
|
|
os->lacing_fill++;
|
|
segptr++;
|
|
|
|
if(val<255)os->lacing_packet=os->lacing_fill;
|
|
}
|
|
|
|
/* set the granulepos on the last granuleval of the last full packet */
|
|
if(saved!=-1){
|
|
os->granule_vals[saved]=granulepos;
|
|
}
|
|
|
|
}
|
|
|
|
if(eos){
|
|
os->e_o_s=1;
|
|
if(os->lacing_fill>0)
|
|
os->lacing_vals[os->lacing_fill-1]|=0x200;
|
|
}
|
|
|
|
os->pageno=pageno+1;
|
|
|
|
return(0);
|
|
}
|
|
|
|
/* clear things to an initial state. Good to call, eg, before seeking */
|
|
int ogg_sync_reset(ogg_sync_state *oy){
|
|
if(ogg_sync_check(oy))return -1;
|
|
|
|
oy->fill=0;
|
|
oy->returned=0;
|
|
oy->unsynced=0;
|
|
oy->headerbytes=0;
|
|
oy->bodybytes=0;
|
|
return(0);
|
|
}
|
|
|
|
int ogg_stream_reset(ogg_stream_state *os){
|
|
if(ogg_stream_check(os)) return -1;
|
|
|
|
os->body_fill=0;
|
|
os->body_returned=0;
|
|
|
|
os->lacing_fill=0;
|
|
os->lacing_packet=0;
|
|
os->lacing_returned=0;
|
|
|
|
os->header_fill=0;
|
|
|
|
os->e_o_s=0;
|
|
os->b_o_s=0;
|
|
os->pageno=-1;
|
|
os->packetno=0;
|
|
os->granulepos=0;
|
|
|
|
return(0);
|
|
}
|
|
|
|
int ogg_stream_reset_serialno(ogg_stream_state *os,int serialno){
|
|
if(ogg_stream_check(os)) return -1;
|
|
ogg_stream_reset(os);
|
|
os->serialno=serialno;
|
|
return(0);
|
|
}
|
|
|
|
static int _packetout(ogg_stream_state *os,ogg_packet *op,int adv){
|
|
|
|
/* The last part of decode. We have the stream broken into packet
|
|
segments. Now we need to group them into packets (or return the
|
|
out of sync markers) */
|
|
|
|
int ptr=os->lacing_returned;
|
|
|
|
if(os->lacing_packet<=ptr)return(0);
|
|
|
|
if(os->lacing_vals[ptr]&0x400){
|
|
/* we need to tell the codec there's a gap; it might need to
|
|
handle previous packet dependencies. */
|
|
os->lacing_returned++;
|
|
os->packetno++;
|
|
return(-1);
|
|
}
|
|
|
|
if(!op && !adv)return(1); /* just using peek as an inexpensive way
|
|
to ask if there's a whole packet
|
|
waiting */
|
|
|
|
/* Gather the whole packet. We'll have no holes or a partial packet */
|
|
{
|
|
int size=os->lacing_vals[ptr]&0xff;
|
|
long bytes=size;
|
|
int eos=os->lacing_vals[ptr]&0x200; /* last packet of the stream? */
|
|
int bos=os->lacing_vals[ptr]&0x100; /* first packet of the stream? */
|
|
|
|
while(size==255){
|
|
int val=os->lacing_vals[++ptr];
|
|
size=val&0xff;
|
|
if(val&0x200)eos=0x200;
|
|
bytes+=size;
|
|
}
|
|
|
|
if(op){
|
|
op->e_o_s=eos;
|
|
op->b_o_s=bos;
|
|
op->packet=os->body_data+os->body_returned;
|
|
op->packetno=os->packetno;
|
|
op->granulepos=os->granule_vals[ptr];
|
|
op->bytes=bytes;
|
|
}
|
|
|
|
if(adv){
|
|
os->body_returned+=bytes;
|
|
os->lacing_returned=ptr+1;
|
|
os->packetno++;
|
|
}
|
|
}
|
|
return(1);
|
|
}
|
|
|
|
int ogg_stream_packetout(ogg_stream_state *os,ogg_packet *op){
|
|
if(ogg_stream_check(os)) return 0;
|
|
return _packetout(os,op,1);
|
|
}
|
|
|
|
int ogg_stream_packetpeek(ogg_stream_state *os,ogg_packet *op){
|
|
if(ogg_stream_check(os)) return 0;
|
|
return _packetout(os,op,0);
|
|
}
|
|
|
|
void ogg_packet_clear(ogg_packet *op) {
|
|
_ogg_free(op->packet);
|
|
memset(op, 0, sizeof(*op));
|
|
}
|
|
|
|
#ifdef _V_SELFTEST
|
|
#include <stdio.h>
|
|
|
|
ogg_stream_state os_en, os_de;
|
|
ogg_sync_state oy;
|
|
|
|
void checkpacket(ogg_packet *op,long len, int no, long pos){
|
|
long j;
|
|
static int sequence=0;
|
|
static int lastno=0;
|
|
|
|
if(op->bytes!=len){
|
|
fprintf(stderr,"incorrect packet length (%ld != %ld)!\n",op->bytes,len);
|
|
exit(1);
|
|
}
|
|
if(op->granulepos!=pos){
|
|
fprintf(stderr,"incorrect packet granpos (%ld != %ld)!\n",(long)op->granulepos,pos);
|
|
exit(1);
|
|
}
|
|
|
|
/* packet number just follows sequence/gap; adjust the input number
|
|
for that */
|
|
if(no==0){
|
|
sequence=0;
|
|
}else{
|
|
sequence++;
|
|
if(no>lastno+1)
|
|
sequence++;
|
|
}
|
|
lastno=no;
|
|
if(op->packetno!=sequence){
|
|
fprintf(stderr,"incorrect packet sequence %ld != %d\n",
|
|
(long)(op->packetno),sequence);
|
|
exit(1);
|
|
}
|
|
|
|
/* Test data */
|
|
for(j=0;j<op->bytes;j++)
|
|
if(op->packet[j]!=((j+no)&0xff)){
|
|
fprintf(stderr,"body data mismatch (1) at pos %ld: %x!=%lx!\n\n",
|
|
j,op->packet[j],(j+no)&0xff);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
void check_page(unsigned char *data,const int *header,ogg_page *og){
|
|
long j;
|
|
/* Test data */
|
|
for(j=0;j<og->body_len;j++)
|
|
if(og->body[j]!=data[j]){
|
|
fprintf(stderr,"body data mismatch (2) at pos %ld: %x!=%x!\n\n",
|
|
j,data[j],og->body[j]);
|
|
exit(1);
|
|
}
|
|
|
|
/* Test header */
|
|
for(j=0;j<og->header_len;j++){
|
|
if(og->header[j]!=header[j]){
|
|
fprintf(stderr,"header content mismatch at pos %ld:\n",j);
|
|
for(j=0;j<header[26]+27;j++)
|
|
fprintf(stderr," (%ld)%02x:%02x",j,header[j],og->header[j]);
|
|
fprintf(stderr,"\n");
|
|
exit(1);
|
|
}
|
|
}
|
|
if(og->header_len!=header[26]+27){
|
|
fprintf(stderr,"header length incorrect! (%ld!=%d)\n",
|
|
og->header_len,header[26]+27);
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
void print_header(ogg_page *og){
|
|
int j;
|
|
fprintf(stderr,"\nHEADER:\n");
|
|
fprintf(stderr," capture: %c %c %c %c version: %d flags: %x\n",
|
|
og->header[0],og->header[1],og->header[2],og->header[3],
|
|
(int)og->header[4],(int)og->header[5]);
|
|
|
|
fprintf(stderr," granulepos: %d serialno: %d pageno: %ld\n",
|
|
(og->header[9]<<24)|(og->header[8]<<16)|
|
|
(og->header[7]<<8)|og->header[6],
|
|
(og->header[17]<<24)|(og->header[16]<<16)|
|
|
(og->header[15]<<8)|og->header[14],
|
|
((long)(og->header[21])<<24)|(og->header[20]<<16)|
|
|
(og->header[19]<<8)|og->header[18]);
|
|
|
|
fprintf(stderr," checksum: %02x:%02x:%02x:%02x\n segments: %d (",
|
|
(int)og->header[22],(int)og->header[23],
|
|
(int)og->header[24],(int)og->header[25],
|
|
(int)og->header[26]);
|
|
|
|
for(j=27;j<og->header_len;j++)
|
|
fprintf(stderr,"%d ",(int)og->header[j]);
|
|
fprintf(stderr,")\n\n");
|
|
}
|
|
|
|
void copy_page(ogg_page *og){
|
|
unsigned char *temp=_ogg_malloc(og->header_len);
|
|
memcpy(temp,og->header,og->header_len);
|
|
og->header=temp;
|
|
|
|
temp=_ogg_malloc(og->body_len);
|
|
memcpy(temp,og->body,og->body_len);
|
|
og->body=temp;
|
|
}
|
|
|
|
void free_page(ogg_page *og){
|
|
_ogg_free (og->header);
|
|
_ogg_free (og->body);
|
|
}
|
|
|
|
void error(void){
|
|
fprintf(stderr,"error!\n");
|
|
exit(1);
|
|
}
|
|
|
|
/* 17 only */
|
|
const int head1_0[] = {0x4f,0x67,0x67,0x53,0,0x06,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,0,0,0,0,
|
|
0x15,0xed,0xec,0x91,
|
|
1,
|
|
17};
|
|
|
|
/* 17, 254, 255, 256, 500, 510, 600 byte, pad */
|
|
const int head1_1[] = {0x4f,0x67,0x67,0x53,0,0x02,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,0,0,0,0,
|
|
0x59,0x10,0x6c,0x2c,
|
|
1,
|
|
17};
|
|
const int head2_1[] = {0x4f,0x67,0x67,0x53,0,0x04,
|
|
0x07,0x18,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,1,0,0,0,
|
|
0x89,0x33,0x85,0xce,
|
|
13,
|
|
254,255,0,255,1,255,245,255,255,0,
|
|
255,255,90};
|
|
|
|
/* nil packets; beginning,middle,end */
|
|
const int head1_2[] = {0x4f,0x67,0x67,0x53,0,0x02,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,0,0,0,0,
|
|
0xff,0x7b,0x23,0x17,
|
|
1,
|
|
0};
|
|
const int head2_2[] = {0x4f,0x67,0x67,0x53,0,0x04,
|
|
0x07,0x28,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,1,0,0,0,
|
|
0x5c,0x3f,0x66,0xcb,
|
|
17,
|
|
17,254,255,0,0,255,1,0,255,245,255,255,0,
|
|
255,255,90,0};
|
|
|
|
/* large initial packet */
|
|
const int head1_3[] = {0x4f,0x67,0x67,0x53,0,0x02,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,0,0,0,0,
|
|
0x01,0x27,0x31,0xaa,
|
|
18,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,255,10};
|
|
|
|
const int head2_3[] = {0x4f,0x67,0x67,0x53,0,0x04,
|
|
0x07,0x08,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,1,0,0,0,
|
|
0x7f,0x4e,0x8a,0xd2,
|
|
4,
|
|
255,4,255,0};
|
|
|
|
|
|
/* continuing packet test */
|
|
const int head1_4[] = {0x4f,0x67,0x67,0x53,0,0x02,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,0,0,0,0,
|
|
0xff,0x7b,0x23,0x17,
|
|
1,
|
|
0};
|
|
|
|
const int head2_4[] = {0x4f,0x67,0x67,0x53,0,0x00,
|
|
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
|
|
0x01,0x02,0x03,0x04,1,0,0,0,
|
|
0xf8,0x3c,0x19,0x79,
|
|
255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255};
|
|
|
|
const int head3_4[] = {0x4f,0x67,0x67,0x53,0,0x05,
|
|
0x07,0x0c,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,2,0,0,0,
|
|
0x38,0xe6,0xb6,0x28,
|
|
6,
|
|
255,220,255,4,255,0};
|
|
|
|
|
|
/* spill expansion test */
|
|
const int head1_4b[] = {0x4f,0x67,0x67,0x53,0,0x02,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,0,0,0,0,
|
|
0xff,0x7b,0x23,0x17,
|
|
1,
|
|
0};
|
|
|
|
const int head2_4b[] = {0x4f,0x67,0x67,0x53,0,0x00,
|
|
0x07,0x10,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,1,0,0,0,
|
|
0xce,0x8f,0x17,0x1a,
|
|
23,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,255,10,255,4,255,0,0};
|
|
|
|
|
|
const int head3_4b[] = {0x4f,0x67,0x67,0x53,0,0x04,
|
|
0x07,0x14,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,2,0,0,0,
|
|
0x9b,0xb2,0x50,0xa1,
|
|
1,
|
|
0};
|
|
|
|
/* page with the 255 segment limit */
|
|
const int head1_5[] = {0x4f,0x67,0x67,0x53,0,0x02,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,0,0,0,0,
|
|
0xff,0x7b,0x23,0x17,
|
|
1,
|
|
0};
|
|
|
|
const int head2_5[] = {0x4f,0x67,0x67,0x53,0,0x00,
|
|
0x07,0xfc,0x03,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,1,0,0,0,
|
|
0xed,0x2a,0x2e,0xa7,
|
|
255,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10};
|
|
|
|
const int head3_5[] = {0x4f,0x67,0x67,0x53,0,0x04,
|
|
0x07,0x00,0x04,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,2,0,0,0,
|
|
0x6c,0x3b,0x82,0x3d,
|
|
1,
|
|
50};
|
|
|
|
|
|
/* packet that overspans over an entire page */
|
|
const int head1_6[] = {0x4f,0x67,0x67,0x53,0,0x02,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,0,0,0,0,
|
|
0xff,0x7b,0x23,0x17,
|
|
1,
|
|
0};
|
|
|
|
const int head2_6[] = {0x4f,0x67,0x67,0x53,0,0x00,
|
|
0x07,0x04,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,1,0,0,0,
|
|
0x68,0x22,0x7c,0x3d,
|
|
255,
|
|
100,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255};
|
|
|
|
const int head3_6[] = {0x4f,0x67,0x67,0x53,0,0x01,
|
|
0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,0xFF,
|
|
0x01,0x02,0x03,0x04,2,0,0,0,
|
|
0xf4,0x87,0xba,0xf3,
|
|
255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255};
|
|
|
|
const int head4_6[] = {0x4f,0x67,0x67,0x53,0,0x05,
|
|
0x07,0x10,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,3,0,0,0,
|
|
0xf7,0x2f,0x6c,0x60,
|
|
5,
|
|
254,255,4,255,0};
|
|
|
|
/* packet that overspans over an entire page */
|
|
const int head1_7[] = {0x4f,0x67,0x67,0x53,0,0x02,
|
|
0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,0,0,0,0,
|
|
0xff,0x7b,0x23,0x17,
|
|
1,
|
|
0};
|
|
|
|
const int head2_7[] = {0x4f,0x67,0x67,0x53,0,0x00,
|
|
0x07,0x04,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,1,0,0,0,
|
|
0x68,0x22,0x7c,0x3d,
|
|
255,
|
|
100,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255,255,255,
|
|
255,255,255,255,255,255};
|
|
|
|
const int head3_7[] = {0x4f,0x67,0x67,0x53,0,0x05,
|
|
0x07,0x08,0x00,0x00,0x00,0x00,0x00,0x00,
|
|
0x01,0x02,0x03,0x04,2,0,0,0,
|
|
0xd4,0xe0,0x60,0xe5,
|
|
1,
|
|
0};
|
|
|
|
int compare_packet(const ogg_packet *op1, const ogg_packet *op2){
|
|
if(op1->packet!=op2->packet){
|
|
fprintf(stderr,"op1->packet != op2->packet\n");
|
|
return(1);
|
|
}
|
|
if(op1->bytes!=op2->bytes){
|
|
fprintf(stderr,"op1->bytes != op2->bytes\n");
|
|
return(1);
|
|
}
|
|
if(op1->b_o_s!=op2->b_o_s){
|
|
fprintf(stderr,"op1->b_o_s != op2->b_o_s\n");
|
|
return(1);
|
|
}
|
|
if(op1->e_o_s!=op2->e_o_s){
|
|
fprintf(stderr,"op1->e_o_s != op2->e_o_s\n");
|
|
return(1);
|
|
}
|
|
if(op1->granulepos!=op2->granulepos){
|
|
fprintf(stderr,"op1->granulepos != op2->granulepos\n");
|
|
return(1);
|
|
}
|
|
if(op1->packetno!=op2->packetno){
|
|
fprintf(stderr,"op1->packetno != op2->packetno\n");
|
|
return(1);
|
|
}
|
|
return(0);
|
|
}
|
|
|
|
void test_pack(const int *pl, const int **headers, int byteskip,
|
|
int pageskip, int packetskip){
|
|
unsigned char *data=_ogg_malloc(1024*1024); /* for scripted test cases only */
|
|
long inptr=0;
|
|
long outptr=0;
|
|
long deptr=0;
|
|
long depacket=0;
|
|
long granule_pos=7,pageno=0;
|
|
int i,j,packets,pageout=pageskip;
|
|
int eosflag=0;
|
|
int bosflag=0;
|
|
|
|
int byteskipcount=0;
|
|
|
|
ogg_stream_reset(&os_en);
|
|
ogg_stream_reset(&os_de);
|
|
ogg_sync_reset(&oy);
|
|
|
|
for(packets=0;packets<packetskip;packets++)
|
|
depacket+=pl[packets];
|
|
|
|
for(packets=0;;packets++)if(pl[packets]==-1)break;
|
|
|
|
for(i=0;i<packets;i++){
|
|
/* construct a test packet */
|
|
ogg_packet op;
|
|
int len=pl[i];
|
|
|
|
op.packet=data+inptr;
|
|
op.bytes=len;
|
|
op.e_o_s=(pl[i+1]<0?1:0);
|
|
op.granulepos=granule_pos;
|
|
|
|
granule_pos+=1024;
|
|
|
|
for(j=0;j<len;j++)data[inptr++]=i+j;
|
|
|
|
/* submit the test packet */
|
|
ogg_stream_packetin(&os_en,&op);
|
|
|
|
/* retrieve any finished pages */
|
|
{
|
|
ogg_page og;
|
|
|
|
while(ogg_stream_pageout(&os_en,&og)){
|
|
/* We have a page. Check it carefully */
|
|
|
|
fprintf(stderr,"%ld, ",pageno);
|
|
|
|
if(headers[pageno]==NULL){
|
|
fprintf(stderr,"coded too many pages!\n");
|
|
exit(1);
|
|
}
|
|
|
|
check_page(data+outptr,headers[pageno],&og);
|
|
|
|
outptr+=og.body_len;
|
|
pageno++;
|
|
if(pageskip){
|
|
bosflag=1;
|
|
pageskip--;
|
|
deptr+=og.body_len;
|
|
}
|
|
|
|
/* have a complete page; submit it to sync/decode */
|
|
|
|
{
|
|
ogg_page og_de;
|
|
ogg_packet op_de,op_de2;
|
|
char *buf=ogg_sync_buffer(&oy,og.header_len+og.body_len);
|
|
char *next=buf;
|
|
byteskipcount+=og.header_len;
|
|
if(byteskipcount>byteskip){
|
|
memcpy(next,og.header,byteskipcount-byteskip);
|
|
next+=byteskipcount-byteskip;
|
|
byteskipcount=byteskip;
|
|
}
|
|
|
|
byteskipcount+=og.body_len;
|
|
if(byteskipcount>byteskip){
|
|
memcpy(next,og.body,byteskipcount-byteskip);
|
|
next+=byteskipcount-byteskip;
|
|
byteskipcount=byteskip;
|
|
}
|
|
|
|
ogg_sync_wrote(&oy,(long)(next-buf));
|
|
|
|
while(1){
|
|
int ret=ogg_sync_pageout(&oy,&og_de);
|
|
if(ret==0)break;
|
|
if(ret<0)continue;
|
|
/* got a page. Happy happy. Verify that it's good. */
|
|
|
|
fprintf(stderr,"(%d), ",pageout);
|
|
|
|
check_page(data+deptr,headers[pageout],&og_de);
|
|
deptr+=og_de.body_len;
|
|
pageout++;
|
|
|
|
/* submit it to deconstitution */
|
|
ogg_stream_pagein(&os_de,&og_de);
|
|
|
|
/* packets out? */
|
|
while(ogg_stream_packetpeek(&os_de,&op_de2)>0){
|
|
ogg_stream_packetpeek(&os_de,NULL);
|
|
ogg_stream_packetout(&os_de,&op_de); /* just catching them all */
|
|
|
|
/* verify peek and out match */
|
|
if(compare_packet(&op_de,&op_de2)){
|
|
fprintf(stderr,"packetout != packetpeek! pos=%ld\n",
|
|
depacket);
|
|
exit(1);
|
|
}
|
|
|
|
/* verify the packet! */
|
|
/* check data */
|
|
if(memcmp(data+depacket,op_de.packet,op_de.bytes)){
|
|
fprintf(stderr,"packet data mismatch in decode! pos=%ld\n",
|
|
depacket);
|
|
exit(1);
|
|
}
|
|
/* check bos flag */
|
|
if(bosflag==0 && op_de.b_o_s==0){
|
|
fprintf(stderr,"b_o_s flag not set on packet!\n");
|
|
exit(1);
|
|
}
|
|
if(bosflag && op_de.b_o_s){
|
|
fprintf(stderr,"b_o_s flag incorrectly set on packet!\n");
|
|
exit(1);
|
|
}
|
|
bosflag=1;
|
|
depacket+=op_de.bytes;
|
|
|
|
/* check eos flag */
|
|
if(eosflag){
|
|
fprintf(stderr,"Multiple decoded packets with eos flag!\n");
|
|
exit(1);
|
|
}
|
|
|
|
if(op_de.e_o_s)eosflag=1;
|
|
|
|
/* check granulepos flag */
|
|
if(op_de.granulepos!=-1){
|
|
fprintf(stderr," granule:%ld ",(long)op_de.granulepos);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
_ogg_free(data);
|
|
if(headers[pageno]!=NULL){
|
|
fprintf(stderr,"did not write last page!\n");
|
|
exit(1);
|
|
}
|
|
if(headers[pageout]!=NULL){
|
|
fprintf(stderr,"did not decode last page!\n");
|
|
exit(1);
|
|
}
|
|
if(inptr!=outptr){
|
|
fprintf(stderr,"encoded page data incomplete!\n");
|
|
exit(1);
|
|
}
|
|
if(inptr!=deptr){
|
|
fprintf(stderr,"decoded page data incomplete!\n");
|
|
exit(1);
|
|
}
|
|
if(inptr!=depacket){
|
|
fprintf(stderr,"decoded packet data incomplete!\n");
|
|
exit(1);
|
|
}
|
|
if(!eosflag){
|
|
fprintf(stderr,"Never got a packet with EOS set!\n");
|
|
exit(1);
|
|
}
|
|
fprintf(stderr,"ok.\n");
|
|
}
|
|
|
|
int main(void){
|
|
|
|
ogg_stream_init(&os_en,0x04030201);
|
|
ogg_stream_init(&os_de,0x04030201);
|
|
ogg_sync_init(&oy);
|
|
|
|
/* Exercise each code path in the framing code. Also verify that
|
|
the checksums are working. */
|
|
|
|
{
|
|
/* 17 only */
|
|
const int packets[]={17, -1};
|
|
const int *headret[]={head1_0,NULL};
|
|
|
|
fprintf(stderr,"testing single page encoding... ");
|
|
test_pack(packets,headret,0,0,0);
|
|
}
|
|
|
|
{
|
|
/* 17, 254, 255, 256, 500, 510, 600 byte, pad */
|
|
const int packets[]={17, 254, 255, 256, 500, 510, 600, -1};
|
|
const int *headret[]={head1_1,head2_1,NULL};
|
|
|
|
fprintf(stderr,"testing basic page encoding... ");
|
|
test_pack(packets,headret,0,0,0);
|
|
}
|
|
|
|
{
|
|
/* nil packets; beginning,middle,end */
|
|
const int packets[]={0,17, 254, 255, 0, 256, 0, 500, 510, 600, 0, -1};
|
|
const int *headret[]={head1_2,head2_2,NULL};
|
|
|
|
fprintf(stderr,"testing basic nil packets... ");
|
|
test_pack(packets,headret,0,0,0);
|
|
}
|
|
|
|
{
|
|
/* large initial packet */
|
|
const int packets[]={4345,259,255,-1};
|
|
const int *headret[]={head1_3,head2_3,NULL};
|
|
|
|
fprintf(stderr,"testing initial-packet lacing > 4k... ");
|
|
test_pack(packets,headret,0,0,0);
|
|
}
|
|
|
|
{
|
|
/* continuing packet test; with page spill expansion, we have to
|
|
overflow the lacing table. */
|
|
const int packets[]={0,65500,259,255,-1};
|
|
const int *headret[]={head1_4,head2_4,head3_4,NULL};
|
|
|
|
fprintf(stderr,"testing single packet page span... ");
|
|
test_pack(packets,headret,0,0,0);
|
|
}
|
|
|
|
{
|
|
/* spill expand packet test */
|
|
const int packets[]={0,4345,259,255,0,0,-1};
|
|
const int *headret[]={head1_4b,head2_4b,head3_4b,NULL};
|
|
|
|
fprintf(stderr,"testing page spill expansion... ");
|
|
test_pack(packets,headret,0,0,0);
|
|
}
|
|
|
|
/* page with the 255 segment limit */
|
|
{
|
|
|
|
const int packets[]={0,10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,10,
|
|
10,10,10,10,10,10,10,50,-1};
|
|
const int *headret[]={head1_5,head2_5,head3_5,NULL};
|
|
|
|
fprintf(stderr,"testing max packet segments... ");
|
|
test_pack(packets,headret,0,0,0);
|
|
}
|
|
|
|
{
|
|
/* packet that overspans over an entire page */
|
|
const int packets[]={0,100,130049,259,255,-1};
|
|
const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL};
|
|
|
|
fprintf(stderr,"testing very large packets... ");
|
|
test_pack(packets,headret,0,0,0);
|
|
}
|
|
|
|
#ifndef DISABLE_CRC
|
|
{
|
|
/* test for the libogg 1.1.1 resync in large continuation bug
|
|
found by Josh Coalson) */
|
|
const int packets[]={0,100,130049,259,255,-1};
|
|
const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL};
|
|
|
|
fprintf(stderr,"testing continuation resync in very large packets... ");
|
|
test_pack(packets,headret,100,2,3);
|
|
}
|
|
#else
|
|
fprintf(stderr,"Skipping continuation resync test due to --disable-crc\n");
|
|
#endif
|
|
|
|
{
|
|
/* term only page. why not? */
|
|
const int packets[]={0,100,64770,-1};
|
|
const int *headret[]={head1_7,head2_7,head3_7,NULL};
|
|
|
|
fprintf(stderr,"testing zero data page (1 nil packet)... ");
|
|
test_pack(packets,headret,0,0,0);
|
|
}
|
|
|
|
|
|
|
|
{
|
|
/* build a bunch of pages for testing */
|
|
unsigned char *data=_ogg_malloc(1024*1024);
|
|
int pl[]={0, 1,1,98,4079, 1,1,2954,2057, 76,34,912,0,234,1000,1000, 1000,300,-1};
|
|
int inptr=0,i,j;
|
|
ogg_page og[5];
|
|
|
|
ogg_stream_reset(&os_en);
|
|
|
|
for(i=0;pl[i]!=-1;i++){
|
|
ogg_packet op;
|
|
int len=pl[i];
|
|
|
|
op.packet=data+inptr;
|
|
op.bytes=len;
|
|
op.e_o_s=(pl[i+1]<0?1:0);
|
|
op.granulepos=(i+1)*1000;
|
|
|
|
for(j=0;j<len;j++)data[inptr++]=i+j;
|
|
ogg_stream_packetin(&os_en,&op);
|
|
}
|
|
|
|
_ogg_free(data);
|
|
|
|
/* retrieve finished pages */
|
|
for(i=0;i<5;i++){
|
|
if(ogg_stream_pageout(&os_en,&og[i])==0){
|
|
fprintf(stderr,"Too few pages output building sync tests!\n");
|
|
exit(1);
|
|
}
|
|
copy_page(&og[i]);
|
|
}
|
|
|
|
/* Test lost pages on pagein/packetout: no rollback */
|
|
{
|
|
ogg_page temp;
|
|
ogg_packet test;
|
|
|
|
fprintf(stderr,"Testing loss of pages... ");
|
|
|
|
ogg_sync_reset(&oy);
|
|
ogg_stream_reset(&os_de);
|
|
for(i=0;i<5;i++){
|
|
memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header,
|
|
og[i].header_len);
|
|
ogg_sync_wrote(&oy,og[i].header_len);
|
|
memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len);
|
|
ogg_sync_wrote(&oy,og[i].body_len);
|
|
}
|
|
|
|
ogg_sync_pageout(&oy,&temp);
|
|
ogg_stream_pagein(&os_de,&temp);
|
|
ogg_sync_pageout(&oy,&temp);
|
|
ogg_stream_pagein(&os_de,&temp);
|
|
ogg_sync_pageout(&oy,&temp);
|
|
/* skip */
|
|
ogg_sync_pageout(&oy,&temp);
|
|
ogg_stream_pagein(&os_de,&temp);
|
|
|
|
/* do we get the expected results/packets? */
|
|
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,0,0,0);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,1,1,-1);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,1,2,-1);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,98,3,-1);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,4079,4,5000);
|
|
if(ogg_stream_packetout(&os_de,&test)!=-1){
|
|
fprintf(stderr,"Error: loss of page did not return error\n");
|
|
exit(1);
|
|
}
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,76,9,-1);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,34,10,-1);
|
|
fprintf(stderr,"ok.\n");
|
|
}
|
|
|
|
/* Test lost pages on pagein/packetout: rollback with continuation */
|
|
{
|
|
ogg_page temp;
|
|
ogg_packet test;
|
|
|
|
fprintf(stderr,"Testing loss of pages (rollback required)... ");
|
|
|
|
ogg_sync_reset(&oy);
|
|
ogg_stream_reset(&os_de);
|
|
for(i=0;i<5;i++){
|
|
memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header,
|
|
og[i].header_len);
|
|
ogg_sync_wrote(&oy,og[i].header_len);
|
|
memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len);
|
|
ogg_sync_wrote(&oy,og[i].body_len);
|
|
}
|
|
|
|
ogg_sync_pageout(&oy,&temp);
|
|
ogg_stream_pagein(&os_de,&temp);
|
|
ogg_sync_pageout(&oy,&temp);
|
|
ogg_stream_pagein(&os_de,&temp);
|
|
ogg_sync_pageout(&oy,&temp);
|
|
ogg_stream_pagein(&os_de,&temp);
|
|
ogg_sync_pageout(&oy,&temp);
|
|
/* skip */
|
|
ogg_sync_pageout(&oy,&temp);
|
|
ogg_stream_pagein(&os_de,&temp);
|
|
|
|
/* do we get the expected results/packets? */
|
|
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,0,0,0);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,1,1,-1);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,1,2,-1);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,98,3,-1);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,4079,4,5000);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,1,5,-1);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,1,6,-1);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,2954,7,-1);
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,2057,8,9000);
|
|
if(ogg_stream_packetout(&os_de,&test)!=-1){
|
|
fprintf(stderr,"Error: loss of page did not return error\n");
|
|
exit(1);
|
|
}
|
|
if(ogg_stream_packetout(&os_de,&test)!=1)error();
|
|
checkpacket(&test,300,17,18000);
|
|
fprintf(stderr,"ok.\n");
|
|
}
|
|
|
|
/* the rest only test sync */
|
|
{
|
|
ogg_page og_de;
|
|
/* Test fractional page inputs: incomplete capture */
|
|
fprintf(stderr,"Testing sync on partial inputs... ");
|
|
ogg_sync_reset(&oy);
|
|
memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
|
|
3);
|
|
ogg_sync_wrote(&oy,3);
|
|
if(ogg_sync_pageout(&oy,&og_de)>0)error();
|
|
|
|
/* Test fractional page inputs: incomplete fixed header */
|
|
memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+3,
|
|
20);
|
|
ogg_sync_wrote(&oy,20);
|
|
if(ogg_sync_pageout(&oy,&og_de)>0)error();
|
|
|
|
/* Test fractional page inputs: incomplete header */
|
|
memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+23,
|
|
5);
|
|
ogg_sync_wrote(&oy,5);
|
|
if(ogg_sync_pageout(&oy,&og_de)>0)error();
|
|
|
|
/* Test fractional page inputs: incomplete body */
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+28,
|
|
og[1].header_len-28);
|
|
ogg_sync_wrote(&oy,og[1].header_len-28);
|
|
if(ogg_sync_pageout(&oy,&og_de)>0)error();
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,1000);
|
|
ogg_sync_wrote(&oy,1000);
|
|
if(ogg_sync_pageout(&oy,&og_de)>0)error();
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body+1000,
|
|
og[1].body_len-1000);
|
|
ogg_sync_wrote(&oy,og[1].body_len-1000);
|
|
if(ogg_sync_pageout(&oy,&og_de)<=0)error();
|
|
|
|
fprintf(stderr,"ok.\n");
|
|
}
|
|
|
|
/* Test fractional page inputs: page + incomplete capture */
|
|
{
|
|
ogg_page og_de;
|
|
fprintf(stderr,"Testing sync on 1+partial inputs... ");
|
|
ogg_sync_reset(&oy);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
|
|
og[1].header_len);
|
|
ogg_sync_wrote(&oy,og[1].header_len);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
|
|
og[1].body_len);
|
|
ogg_sync_wrote(&oy,og[1].body_len);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
|
|
20);
|
|
ogg_sync_wrote(&oy,20);
|
|
if(ogg_sync_pageout(&oy,&og_de)<=0)error();
|
|
if(ogg_sync_pageout(&oy,&og_de)>0)error();
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+20,
|
|
og[1].header_len-20);
|
|
ogg_sync_wrote(&oy,og[1].header_len-20);
|
|
memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
|
|
og[1].body_len);
|
|
ogg_sync_wrote(&oy,og[1].body_len);
|
|
if(ogg_sync_pageout(&oy,&og_de)<=0)error();
|
|
|
|
fprintf(stderr,"ok.\n");
|
|
}
|
|
|
|
/* Test recapture: garbage + page */
|
|
{
|
|
ogg_page og_de;
|
|
fprintf(stderr,"Testing search for capture... ");
|
|
ogg_sync_reset(&oy);
|
|
|
|
/* 'garbage' */
|
|
memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
|
|
og[1].body_len);
|
|
ogg_sync_wrote(&oy,og[1].body_len);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
|
|
og[1].header_len);
|
|
ogg_sync_wrote(&oy,og[1].header_len);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
|
|
og[1].body_len);
|
|
ogg_sync_wrote(&oy,og[1].body_len);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header,
|
|
20);
|
|
ogg_sync_wrote(&oy,20);
|
|
if(ogg_sync_pageout(&oy,&og_de)>0)error();
|
|
if(ogg_sync_pageout(&oy,&og_de)<=0)error();
|
|
if(ogg_sync_pageout(&oy,&og_de)>0)error();
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header+20,
|
|
og[2].header_len-20);
|
|
ogg_sync_wrote(&oy,og[2].header_len-20);
|
|
memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body,
|
|
og[2].body_len);
|
|
ogg_sync_wrote(&oy,og[2].body_len);
|
|
if(ogg_sync_pageout(&oy,&og_de)<=0)error();
|
|
|
|
fprintf(stderr,"ok.\n");
|
|
}
|
|
|
|
#ifndef DISABLE_CRC
|
|
/* Test recapture: page + garbage + page */
|
|
{
|
|
ogg_page og_de;
|
|
fprintf(stderr,"Testing recapture... ");
|
|
ogg_sync_reset(&oy);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header,
|
|
og[1].header_len);
|
|
ogg_sync_wrote(&oy,og[1].header_len);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,
|
|
og[1].body_len);
|
|
ogg_sync_wrote(&oy,og[1].body_len);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header,
|
|
og[2].header_len);
|
|
ogg_sync_wrote(&oy,og[2].header_len);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header,
|
|
og[2].header_len);
|
|
ogg_sync_wrote(&oy,og[2].header_len);
|
|
|
|
if(ogg_sync_pageout(&oy,&og_de)<=0)error();
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body,
|
|
og[2].body_len-5);
|
|
ogg_sync_wrote(&oy,og[2].body_len-5);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[3].header_len),og[3].header,
|
|
og[3].header_len);
|
|
ogg_sync_wrote(&oy,og[3].header_len);
|
|
|
|
memcpy(ogg_sync_buffer(&oy,og[3].body_len),og[3].body,
|
|
og[3].body_len);
|
|
ogg_sync_wrote(&oy,og[3].body_len);
|
|
|
|
if(ogg_sync_pageout(&oy,&og_de)>0)error();
|
|
if(ogg_sync_pageout(&oy,&og_de)<=0)error();
|
|
|
|
fprintf(stderr,"ok.\n");
|
|
}
|
|
#else
|
|
fprintf(stderr,"Skipping recapture test due to --disable-crc\n");
|
|
#endif
|
|
|
|
/* Free page data that was previously copied */
|
|
{
|
|
for(i=0;i<5;i++){
|
|
free_page(&og[i]);
|
|
}
|
|
}
|
|
}
|
|
ogg_sync_clear(&oy);
|
|
ogg_stream_clear(&os_en);
|
|
ogg_stream_clear(&os_de);
|
|
|
|
return(0);
|
|
}
|
|
|
|
#endif
|