diff options
Diffstat (limited to 'src/libogg-1.3.0')
| -rw-r--r-- | src/libogg-1.3.0/include/ogg/config_types.h | 24 | ||||
| -rw-r--r-- | src/libogg-1.3.0/include/ogg/ogg.h | 210 | ||||
| -rw-r--r-- | src/libogg-1.3.0/include/ogg/os_types.h | 147 | ||||
| -rw-r--r-- | src/libogg-1.3.0/src/bitwise.c | 857 | ||||
| -rw-r--r-- | src/libogg-1.3.0/src/framing.c | 2093 |
5 files changed, 0 insertions, 3331 deletions
diff --git a/src/libogg-1.3.0/include/ogg/config_types.h b/src/libogg-1.3.0/include/ogg/config_types.h deleted file mode 100644 index e0dd8655..00000000 --- a/src/libogg-1.3.0/include/ogg/config_types.h +++ /dev/null @@ -1,24 +0,0 @@ -#ifndef __CONFIG_TYPES_H__ -#define __CONFIG_TYPES_H__ - -/* #define INCLUDE_INTTYPES_H 1 */ -#define INCLUDE_STDINT_H 1 -/* #define INCLUDE_SYS_TYPES_H 1 */ - -#if INCLUDE_INTTYPES_H -# include <inttypes.h> -#endif -#if INCLUDE_STDINT_H -# include <stdint.h> -#endif -#if INCLUDE_SYS_TYPES_H -# include <sys/types.h> -#endif - -typedef int16_t ogg_int16_t; -typedef uint16_t ogg_uint16_t; -typedef int32_t ogg_int32_t; -typedef uint32_t ogg_uint32_t; -typedef int64_t ogg_int64_t; - -#endif diff --git a/src/libogg-1.3.0/include/ogg/ogg.h b/src/libogg-1.3.0/include/ogg/ogg.h deleted file mode 100644 index cea4ebed..00000000 --- a/src/libogg-1.3.0/include/ogg/ogg.h +++ /dev/null @@ -1,210 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * - * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * - * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * - * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * - * * - * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 * - * by the Xiph.Org Foundation http://www.xiph.org/ * - * * - ******************************************************************** - - function: toplevel libogg include - last mod: $Id: ogg.h 18044 2011-08-01 17:55:20Z gmaxwell $ - - ********************************************************************/ -#ifndef _OGG_H -#define _OGG_H - -#ifdef __cplusplus -extern "C" { -#endif - -#include <stddef.h> -#include <ogg/os_types.h> - -typedef struct { - void *iov_base; - size_t iov_len; -} ogg_iovec_t; - -typedef struct { - long endbyte; - int endbit; - - unsigned char *buffer; - unsigned char *ptr; - long storage; -} oggpack_buffer; - -/* ogg_page is used to encapsulate the data in one Ogg bitstream page *****/ - -typedef struct { - unsigned char *header; - long header_len; - unsigned char *body; - long body_len; -} ogg_page; - -/* ogg_stream_state contains the current encode/decode state of a logical - Ogg bitstream **********************************************************/ - -typedef struct { - unsigned char *body_data; /* bytes from packet bodies */ - long body_storage; /* storage elements allocated */ - long body_fill; /* elements stored; fill mark */ - long body_returned; /* elements of fill returned */ - - - int *lacing_vals; /* The values that will go to the segment table */ - ogg_int64_t *granule_vals; /* granulepos values for headers. Not compact - this way, but it is simple coupled to the - lacing fifo */ - long lacing_storage; - long lacing_fill; - long lacing_packet; - long lacing_returned; - - unsigned char header[282]; /* working space for header encode */ - int header_fill; - - int e_o_s; /* set when we have buffered the last packet in the - logical bitstream */ - int b_o_s; /* set after we've written the initial page - of a logical bitstream */ - long serialno; - long pageno; - ogg_int64_t packetno; /* sequence number for decode; the framing - knows where there's a hole in the data, - but we need coupling so that the codec - (which is in a separate abstraction - layer) also knows about the gap */ - ogg_int64_t granulepos; - -} ogg_stream_state; - -/* ogg_packet is used to encapsulate the data and metadata belonging - to a single raw Ogg/Vorbis packet *************************************/ - -typedef struct { - unsigned char *packet; - long bytes; - long b_o_s; - long e_o_s; - - ogg_int64_t granulepos; - - ogg_int64_t packetno; /* sequence number for decode; the framing - knows where there's a hole in the data, - but we need coupling so that the codec - (which is in a separate abstraction - layer) also knows about the gap */ -} ogg_packet; - -typedef struct { - unsigned char *data; - int storage; - int fill; - int returned; - - int unsynced; - int headerbytes; - int bodybytes; -} ogg_sync_state; - -/* Ogg BITSTREAM PRIMITIVES: bitstream ************************/ - -extern void oggpack_writeinit(oggpack_buffer *b); -extern int oggpack_writecheck(oggpack_buffer *b); -extern void oggpack_writetrunc(oggpack_buffer *b,long bits); -extern void oggpack_writealign(oggpack_buffer *b); -extern void oggpack_writecopy(oggpack_buffer *b,void *source,long bits); -extern void oggpack_reset(oggpack_buffer *b); -extern void oggpack_writeclear(oggpack_buffer *b); -extern void oggpack_readinit(oggpack_buffer *b,unsigned char *buf,int bytes); -extern void oggpack_write(oggpack_buffer *b,unsigned long value,int bits); -extern long oggpack_look(oggpack_buffer *b,int bits); -extern long oggpack_look1(oggpack_buffer *b); -extern void oggpack_adv(oggpack_buffer *b,int bits); -extern void oggpack_adv1(oggpack_buffer *b); -extern long oggpack_read(oggpack_buffer *b,int bits); -extern long oggpack_read1(oggpack_buffer *b); -extern long oggpack_bytes(oggpack_buffer *b); -extern long oggpack_bits(oggpack_buffer *b); -extern unsigned char *oggpack_get_buffer(oggpack_buffer *b); - -extern void oggpackB_writeinit(oggpack_buffer *b); -extern int oggpackB_writecheck(oggpack_buffer *b); -extern void oggpackB_writetrunc(oggpack_buffer *b,long bits); -extern void oggpackB_writealign(oggpack_buffer *b); -extern void oggpackB_writecopy(oggpack_buffer *b,void *source,long bits); -extern void oggpackB_reset(oggpack_buffer *b); -extern void oggpackB_writeclear(oggpack_buffer *b); -extern void oggpackB_readinit(oggpack_buffer *b,unsigned char *buf,int bytes); -extern void oggpackB_write(oggpack_buffer *b,unsigned long value,int bits); -extern long oggpackB_look(oggpack_buffer *b,int bits); -extern long oggpackB_look1(oggpack_buffer *b); -extern void oggpackB_adv(oggpack_buffer *b,int bits); -extern void oggpackB_adv1(oggpack_buffer *b); -extern long oggpackB_read(oggpack_buffer *b,int bits); -extern long oggpackB_read1(oggpack_buffer *b); -extern long oggpackB_bytes(oggpack_buffer *b); -extern long oggpackB_bits(oggpack_buffer *b); -extern unsigned char *oggpackB_get_buffer(oggpack_buffer *b); - -/* Ogg BITSTREAM PRIMITIVES: encoding **************************/ - -extern int ogg_stream_packetin(ogg_stream_state *os, ogg_packet *op); -extern int ogg_stream_iovecin(ogg_stream_state *os, ogg_iovec_t *iov, - int count, long e_o_s, ogg_int64_t granulepos); -extern int ogg_stream_pageout(ogg_stream_state *os, ogg_page *og); -extern int ogg_stream_pageout_fill(ogg_stream_state *os, ogg_page *og, int nfill); -extern int ogg_stream_flush(ogg_stream_state *os, ogg_page *og); -extern int ogg_stream_flush_fill(ogg_stream_state *os, ogg_page *og, int nfill); - -/* Ogg BITSTREAM PRIMITIVES: decoding **************************/ - -extern int ogg_sync_init(ogg_sync_state *oy); -extern int ogg_sync_clear(ogg_sync_state *oy); -extern int ogg_sync_reset(ogg_sync_state *oy); -extern int ogg_sync_destroy(ogg_sync_state *oy); -extern int ogg_sync_check(ogg_sync_state *oy); - -extern char *ogg_sync_buffer(ogg_sync_state *oy, long size); -extern int ogg_sync_wrote(ogg_sync_state *oy, long bytes); -extern long ogg_sync_pageseek(ogg_sync_state *oy,ogg_page *og); -extern int ogg_sync_pageout(ogg_sync_state *oy, ogg_page *og); -extern int ogg_stream_pagein(ogg_stream_state *os, ogg_page *og); -extern int ogg_stream_packetout(ogg_stream_state *os,ogg_packet *op); -extern int ogg_stream_packetpeek(ogg_stream_state *os,ogg_packet *op); - -/* Ogg BITSTREAM PRIMITIVES: general ***************************/ - -extern int ogg_stream_init(ogg_stream_state *os,int serialno); -extern int ogg_stream_clear(ogg_stream_state *os); -extern int ogg_stream_reset(ogg_stream_state *os); -extern int ogg_stream_reset_serialno(ogg_stream_state *os,int serialno); -extern int ogg_stream_destroy(ogg_stream_state *os); -extern int ogg_stream_check(ogg_stream_state *os); -extern int ogg_stream_eos(ogg_stream_state *os); - -extern void ogg_page_checksum_set(ogg_page *og); - -extern int ogg_page_version(const ogg_page *og); -extern int ogg_page_continued(const ogg_page *og); -extern int ogg_page_bos(const ogg_page *og); -extern int ogg_page_eos(const ogg_page *og); -extern ogg_int64_t ogg_page_granulepos(const ogg_page *og); -extern int ogg_page_serialno(const ogg_page *og); -extern long ogg_page_pageno(const ogg_page *og); -extern int ogg_page_packets(const ogg_page *og); - -extern void ogg_packet_clear(ogg_packet *op); - - -#ifdef __cplusplus -} -#endif - -#endif /* _OGG_H */ diff --git a/src/libogg-1.3.0/include/ogg/os_types.h b/src/libogg-1.3.0/include/ogg/os_types.h deleted file mode 100644 index d6691b70..00000000 --- a/src/libogg-1.3.0/include/ogg/os_types.h +++ /dev/null @@ -1,147 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * - * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * - * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * - * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * - * * - * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2002 * - * by the Xiph.Org Foundation http://www.xiph.org/ * - * * - ******************************************************************** - - function: #ifdef jail to whip a few platforms into the UNIX ideal. - last mod: $Id: os_types.h 17712 2010-12-03 17:10:02Z xiphmont $ - - ********************************************************************/ -#ifndef _OS_TYPES_H -#define _OS_TYPES_H - -/* make it easy on the folks that want to compile the libs with a - different malloc than stdlib */ -#define _ogg_malloc malloc -#define _ogg_calloc calloc -#define _ogg_realloc realloc -#define _ogg_free free - -#if defined(_WIN32) - -# if defined(__CYGWIN__) -# include <stdint.h> - typedef int16_t ogg_int16_t; - typedef uint16_t ogg_uint16_t; - typedef int32_t ogg_int32_t; - typedef uint32_t ogg_uint32_t; - typedef int64_t ogg_int64_t; - typedef uint64_t ogg_uint64_t; -# elif defined(__MINGW32__) -# include <sys/types.h> - typedef short ogg_int16_t; - typedef unsigned short ogg_uint16_t; - typedef int ogg_int32_t; - typedef unsigned int ogg_uint32_t; - typedef long long ogg_int64_t; - typedef unsigned long long ogg_uint64_t; -# elif defined(__MWERKS__) - typedef long long ogg_int64_t; - typedef int ogg_int32_t; - typedef unsigned int ogg_uint32_t; - typedef short ogg_int16_t; - typedef unsigned short ogg_uint16_t; -# else - /* MSVC/Borland */ - typedef __int64 ogg_int64_t; - typedef __int32 ogg_int32_t; - typedef unsigned __int32 ogg_uint32_t; - typedef __int16 ogg_int16_t; - typedef unsigned __int16 ogg_uint16_t; -# endif - -#elif defined(__MACOS__) - -# include <sys/types.h> - typedef SInt16 ogg_int16_t; - typedef UInt16 ogg_uint16_t; - typedef SInt32 ogg_int32_t; - typedef UInt32 ogg_uint32_t; - typedef SInt64 ogg_int64_t; - -#elif (defined(__APPLE__) && defined(__MACH__)) /* MacOS X Framework build */ - -# include <inttypes.h> - typedef int16_t ogg_int16_t; - typedef uint16_t ogg_uint16_t; - typedef int32_t ogg_int32_t; - typedef uint32_t ogg_uint32_t; - typedef int64_t ogg_int64_t; - -#elif defined(__HAIKU__) - - /* Haiku */ -# include <sys/types.h> - typedef short ogg_int16_t; - typedef unsigned short ogg_uint16_t; - typedef int ogg_int32_t; - typedef unsigned int ogg_uint32_t; - typedef long long ogg_int64_t; - -#elif defined(__BEOS__) - - /* Be */ -# include <inttypes.h> - typedef int16_t ogg_int16_t; - typedef uint16_t ogg_uint16_t; - typedef int32_t ogg_int32_t; - typedef uint32_t ogg_uint32_t; - typedef int64_t ogg_int64_t; - -#elif defined (__EMX__) - - /* OS/2 GCC */ - typedef short ogg_int16_t; - typedef unsigned short ogg_uint16_t; - typedef int ogg_int32_t; - typedef unsigned int ogg_uint32_t; - typedef long long ogg_int64_t; - -#elif defined (DJGPP) - - /* DJGPP */ - typedef short ogg_int16_t; - typedef int ogg_int32_t; - typedef unsigned int ogg_uint32_t; - typedef long long ogg_int64_t; - -#elif defined(R5900) - - /* PS2 EE */ - typedef long ogg_int64_t; - typedef int ogg_int32_t; - typedef unsigned ogg_uint32_t; - typedef short ogg_int16_t; - -#elif defined(__SYMBIAN32__) - - /* Symbian GCC */ - typedef signed short ogg_int16_t; - typedef unsigned short ogg_uint16_t; - typedef signed int ogg_int32_t; - typedef unsigned int ogg_uint32_t; - typedef long long int ogg_int64_t; - -#elif defined(__TMS320C6X__) - - /* TI C64x compiler */ - typedef signed short ogg_int16_t; - typedef unsigned short ogg_uint16_t; - typedef signed int ogg_int32_t; - typedef unsigned int ogg_uint32_t; - typedef long long int ogg_int64_t; - -#else - -# include <ogg/config_types.h> - -#endif - -#endif /* _OS_TYPES_H */ diff --git a/src/libogg-1.3.0/src/bitwise.c b/src/libogg-1.3.0/src/bitwise.c deleted file mode 100644 index 68aca675..00000000 --- a/src/libogg-1.3.0/src/bitwise.c +++ /dev/null @@ -1,857 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE Ogg CONTAINER SOURCE CODE. * - * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * - * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * - * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * - * * - * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2010 * - * by the Xiph.Org Foundation http://www.xiph.org/ * - * * - ******************************************************************** - - function: packing variable sized words into an octet stream - last mod: $Id: bitwise.c 18051 2011-08-04 17:56:39Z giles $ - - ********************************************************************/ - -/* We're 'LSb' endian; if we write a word but read individual bits, - then we'll read the lsb first */ - -#include <string.h> -#include <stdlib.h> -#include <limits.h> -#include <ogg/ogg.h> - -#define BUFFER_INCREMENT 256 - -static const unsigned long mask[]= -{0x00000000,0x00000001,0x00000003,0x00000007,0x0000000f, - 0x0000001f,0x0000003f,0x0000007f,0x000000ff,0x000001ff, - 0x000003ff,0x000007ff,0x00000fff,0x00001fff,0x00003fff, - 0x00007fff,0x0000ffff,0x0001ffff,0x0003ffff,0x0007ffff, - 0x000fffff,0x001fffff,0x003fffff,0x007fffff,0x00ffffff, - 0x01ffffff,0x03ffffff,0x07ffffff,0x0fffffff,0x1fffffff, - 0x3fffffff,0x7fffffff,0xffffffff }; - -static const unsigned int mask8B[]= -{0x00,0x80,0xc0,0xe0,0xf0,0xf8,0xfc,0xfe,0xff}; - -void oggpack_writeinit(oggpack_buffer *b){ - memset(b,0,sizeof(*b)); - b->ptr=b->buffer=_ogg_malloc(BUFFER_INCREMENT); - b->buffer[0]='\0'; - b->storage=BUFFER_INCREMENT; -} - -void oggpackB_writeinit(oggpack_buffer *b){ - oggpack_writeinit(b); -} - -int oggpack_writecheck(oggpack_buffer *b){ - if(!b->ptr || !b->storage)return -1; - return 0; -} - -int oggpackB_writecheck(oggpack_buffer *b){ - return oggpack_writecheck(b); -} - -void oggpack_writetrunc(oggpack_buffer *b,long bits){ - long bytes=bits>>3; - if(b->ptr){ - bits-=bytes*8; - b->ptr=b->buffer+bytes; - b->endbit=bits; - b->endbyte=bytes; - *b->ptr&=mask[bits]; - } -} - -void oggpackB_writetrunc(oggpack_buffer *b,long bits){ - long bytes=bits>>3; - if(b->ptr){ - bits-=bytes*8; - b->ptr=b->buffer+bytes; - b->endbit=bits; - b->endbyte=bytes; - *b->ptr&=mask8B[bits]; - } -} - -/* Takes only up to 32 bits. */ -void oggpack_write(oggpack_buffer *b,unsigned long value,int bits){ - if(bits<0 || bits>32) goto err; - if(b->endbyte>=b->storage-4){ - void *ret; - if(!b->ptr)return; - if(b->storage>LONG_MAX-BUFFER_INCREMENT) goto err; - ret=_ogg_realloc(b->buffer,b->storage+BUFFER_INCREMENT); - if(!ret) goto err; - b->buffer=ret; - b->storage+=BUFFER_INCREMENT; - b->ptr=b->buffer+b->endbyte; - } - - value&=mask[bits]; - bits+=b->endbit; - - b->ptr[0]|=value<<b->endbit; - - if(bits>=8){ - b->ptr[1]=(unsigned char)(value>>(8-b->endbit)); - if(bits>=16){ - b->ptr[2]=(unsigned char)(value>>(16-b->endbit)); - if(bits>=24){ - b->ptr[3]=(unsigned char)(value>>(24-b->endbit)); - if(bits>=32){ - if(b->endbit) - b->ptr[4]=(unsigned char)(value>>(32-b->endbit)); - else - b->ptr[4]=0; - } - } - } - } - - b->endbyte+=bits/8; - b->ptr+=bits/8; - b->endbit=bits&7; - return; - err: - oggpack_writeclear(b); -} - -/* Takes only up to 32 bits. */ -void oggpackB_write(oggpack_buffer *b,unsigned long value,int bits){ - if(bits<0 || bits>32) goto err; - if(b->endbyte>=b->storage-4){ - void *ret; - if(!b->ptr)return; - if(b->storage>LONG_MAX-BUFFER_INCREMENT) goto err; - ret=_ogg_realloc(b->buffer,b->storage+BUFFER_INCREMENT); - if(!ret) goto err; - b->buffer=ret; - b->storage+=BUFFER_INCREMENT; - b->ptr=b->buffer+b->endbyte; - } - - value=(value&mask[bits])<<(32-bits); - bits+=b->endbit; - - b->ptr[0]|=value>>(24+b->endbit); - - if(bits>=8){ - b->ptr[1]=(unsigned char)(value>>(16+b->endbit)); - if(bits>=16){ - b->ptr[2]=(unsigned char)(value>>(8+b->endbit)); - if(bits>=24){ - b->ptr[3]=(unsigned char)(value>>(b->endbit)); - if(bits>=32){ - if(b->endbit) - b->ptr[4]=(unsigned char)(value<<(8-b->endbit)); - else - b->ptr[4]=0; - } - } - } - } - - b->endbyte+=bits/8; - b->ptr+=bits/8; - b->endbit=bits&7; - return; - err: - oggpack_writeclear(b); -} - -void oggpack_writealign(oggpack_buffer *b){ - int bits=8-b->endbit; - if(bits<8) - oggpack_write(b,0,bits); -} - -void oggpackB_writealign(oggpack_buffer *b){ - int bits=8-b->endbit; - if(bits<8) - oggpackB_write(b,0,bits); -} - -static void oggpack_writecopy_helper(oggpack_buffer *b, - void *source, - long bits, - void (*w)(oggpack_buffer *, - unsigned long, - int), - int msb){ - unsigned char *ptr=(unsigned char *)source; - - long bytes=bits/8; - bits-=bytes*8; - - if(b->endbit){ - int i; - /* unaligned copy. Do it the hard way. */ - for(i=0;i<bytes;i++) - w(b,(unsigned long)(ptr[i]),8); - }else{ - /* aligned block copy */ - if(b->endbyte+bytes+1>=b->storage){ - void *ret; - if(!b->ptr) goto err; - if(b->endbyte+bytes+BUFFER_INCREMENT>b->storage) goto err; - b->storage=b->endbyte+bytes+BUFFER_INCREMENT; - ret=_ogg_realloc(b->buffer,b->storage); - if(!ret) goto err; - b->buffer=ret; - b->ptr=b->buffer+b->endbyte; - } - - memmove(b->ptr,source,bytes); - b->ptr+=bytes; - b->endbyte+=bytes; - *b->ptr=0; - - } - if(bits){ - if(msb) - w(b,(unsigned long)(ptr[bytes]>>(8-bits)),bits); - else - w(b,(unsigned long)(ptr[bytes]),bits); - } - return; - err: - oggpack_writeclear(b); -} - -void oggpack_writecopy(oggpack_buffer *b,void *source,long bits){ - oggpack_writecopy_helper(b,source,bits,oggpack_write,0); -} - -void oggpackB_writecopy(oggpack_buffer *b,void *source,long bits){ - oggpack_writecopy_helper(b,source,bits,oggpackB_write,1); -} - -void oggpack_reset(oggpack_buffer *b){ - if(!b->ptr)return; - b->ptr=b->buffer; - b->buffer[0]=0; - b->endbit=b->endbyte=0; -} - -void oggpackB_reset(oggpack_buffer *b){ - oggpack_reset(b); -} - -void oggpack_writeclear(oggpack_buffer *b){ - if(b->buffer)_ogg_free(b->buffer); - memset(b,0,sizeof(*b)); -} - -void oggpackB_writeclear(oggpack_buffer *b){ - oggpack_writeclear(b); -} - -void oggpack_readinit(oggpack_buffer *b,unsigned char *buf,int bytes){ - memset(b,0,sizeof(*b)); - b->buffer=b->ptr=buf; - b->storage=bytes; -} - -void oggpackB_readinit(oggpack_buffer *b,unsigned char *buf,int bytes){ - oggpack_readinit(b,buf,bytes); -} - -/* Read in bits without advancing the bitptr; bits <= 32 */ -long oggpack_look(oggpack_buffer *b,int bits){ - unsigned long ret; - unsigned long m; - - if(bits<0 || bits>32) return -1; - m=mask[bits]; - bits+=b->endbit; - - if(b->endbyte >= b->storage-4){ - /* not the main path */ - if(b->endbyte > b->storage-((bits+7)>>3)) return -1; - /* special case to avoid reading b->ptr[0], which might be past the end of - the buffer; also skips some useless accounting */ - else if(!bits)return(0L); - } - - ret=b->ptr[0]>>b->endbit; - if(bits>8){ - ret|=b->ptr[1]<<(8-b->endbit); - if(bits>16){ - ret|=b->ptr[2]<<(16-b->endbit); - if(bits>24){ - ret|=b->ptr[3]<<(24-b->endbit); - if(bits>32 && b->endbit) - ret|=b->ptr[4]<<(32-b->endbit); - } - } - } - return(m&ret); -} - -/* Read in bits without advancing the bitptr; bits <= 32 */ -long oggpackB_look(oggpack_buffer *b,int bits){ - unsigned long ret; - int m=32-bits; - - if(m<0 || m>32) return -1; - bits+=b->endbit; - - if(b->endbyte >= b->storage-4){ - /* not the main path */ - if(b->endbyte > b->storage-((bits+7)>>3)) return -1; - /* special case to avoid reading b->ptr[0], which might be past the end of - the buffer; also skips some useless accounting */ - else if(!bits)return(0L); - } - - ret=b->ptr[0]<<(24+b->endbit); - if(bits>8){ - ret|=b->ptr[1]<<(16+b->endbit); - if(bits>16){ - ret|=b->ptr[2]<<(8+b->endbit); - if(bits>24){ - ret|=b->ptr[3]<<(b->endbit); - if(bits>32 && b->endbit) - ret|=b->ptr[4]>>(8-b->endbit); - } - } - } - return ((ret&0xffffffff)>>(m>>1))>>((m+1)>>1); -} - -long oggpack_look1(oggpack_buffer *b){ - if(b->endbyte>=b->storage)return(-1); - return((b->ptr[0]>>b->endbit)&1); -} - -long oggpackB_look1(oggpack_buffer *b){ - if(b->endbyte>=b->storage)return(-1); - return((b->ptr[0]>>(7-b->endbit))&1); -} - -void oggpack_adv(oggpack_buffer *b,int bits){ - bits+=b->endbit; - - if(b->endbyte > b->storage-((bits+7)>>3)) goto overflow; - - b->ptr+=bits/8; - b->endbyte+=bits/8; - b->endbit=bits&7; - return; - - overflow: - b->ptr=NULL; - b->endbyte=b->storage; - b->endbit=1; -} - -void oggpackB_adv(oggpack_buffer *b,int bits){ - oggpack_adv(b,bits); -} - -void oggpack_adv1(oggpack_buffer *b){ - if(++(b->endbit)>7){ - b->endbit=0; - b->ptr++; - b->endbyte++; - } -} - -void oggpackB_adv1(oggpack_buffer *b){ - oggpack_adv1(b); -} - -/* bits <= 32 */ -long oggpack_read(oggpack_buffer *b,int bits){ - long ret; - unsigned long m; - - if(bits<0 || bits>32) goto err; - m=mask[bits]; - bits+=b->endbit; - - if(b->endbyte >= b->storage-4){ - /* not the main path */ - if(b->endbyte > b->storage-((bits+7)>>3)) goto overflow; - /* special case to avoid reading b->ptr[0], which might be past the end of - the buffer; also skips some useless accounting */ - else if(!bits)return(0L); - } - - ret=b->ptr[0]>>b->endbit; - if(bits>8){ - ret|=b->ptr[1]<<(8-b->endbit); - if(bits>16){ - ret|=b->ptr[2]<<(16-b->endbit); - if(bits>24){ - ret|=b->ptr[3]<<(24-b->endbit); - if(bits>32 && b->endbit){ - ret|=b->ptr[4]<<(32-b->endbit); - } - } - } - } - ret&=m; - b->ptr+=bits/8; - b->endbyte+=bits/8; - b->endbit=bits&7; - return ret; - - overflow: - err: - b->ptr=NULL; - b->endbyte=b->storage; - b->endbit=1; - return -1L; -} - -/* bits <= 32 */ -long oggpackB_read(oggpack_buffer *b,int bits){ - long ret; - long m=32-bits; - - if(m<0 || m>32) goto err; - bits+=b->endbit; - - if(b->endbyte+4>=b->storage){ - /* not the main path */ - if(b->endbyte > b->storage-((bits+7)>>3)) goto overflow; - /* special case to avoid reading b->ptr[0], which might be past the end of - the buffer; also skips some useless accounting */ - else if(!bits)return(0L); - } - - ret=b->ptr[0]<<(24+b->endbit); - if(bits>8){ - ret|=b->ptr[1]<<(16+b->endbit); - if(bits>16){ - ret|=b->ptr[2]<<(8+b->endbit); - if(bits>24){ - ret|=b->ptr[3]<<(b->endbit); - if(bits>32 && b->endbit) - ret|=b->ptr[4]>>(8-b->endbit); - } - } - } - ret=((ret&0xffffffffUL)>>(m>>1))>>((m+1)>>1); - - b->ptr+=bits/8; - b->endbyte+=bits/8; - b->endbit=bits&7; - return ret; - - overflow: - err: - b->ptr=NULL; - b->endbyte=b->storage; - b->endbit=1; - return -1L; -} - -long oggpack_read1(oggpack_buffer *b){ - long ret; - - if(b->endbyte >= b->storage) goto overflow; - ret=(b->ptr[0]>>b->endbit)&1; - - b->endbit++; - if(b->endbit>7){ - b->endbit=0; - b->ptr++; - b->endbyte++; - } - return ret; - - overflow: - b->ptr=NULL; - b->endbyte=b->storage; - b->endbit=1; - return -1L; -} - -long oggpackB_read1(oggpack_buffer *b){ - long ret; - - if(b->endbyte >= b->storage) goto overflow; - ret=(b->ptr[0]>>(7-b->endbit))&1; - - b->endbit++; - if(b->endbit>7){ - b->endbit=0; - b->ptr++; - b->endbyte++; - } - return ret; - - overflow: - b->ptr=NULL; - b->endbyte=b->storage; - b->endbit=1; - return -1L; -} - -long oggpack_bytes(oggpack_buffer *b){ - return(b->endbyte+(b->endbit+7)/8); -} - -long oggpack_bits(oggpack_buffer *b){ - return(b->endbyte*8+b->endbit); -} - -long oggpackB_bytes(oggpack_buffer *b){ - return oggpack_bytes(b); -} - -long oggpackB_bits(oggpack_buffer *b){ - return oggpack_bits(b); -} - -unsigned char *oggpack_get_buffer(oggpack_buffer *b){ - return(b->buffer); -} - -unsigned char *oggpackB_get_buffer(oggpack_buffer *b){ - return oggpack_get_buffer(b); -} - -/* Self test of the bitwise routines; everything else is based on - them, so they damned well better be solid. */ - -#ifdef _V_SELFTEST -#include <stdio.h> - -static int ilog(unsigned int v){ - int ret=0; - while(v){ - ret++; - v>>=1; - } - return(ret); -} - -oggpack_buffer o; -oggpack_buffer r; - -void report(char *in){ - fprintf(stderr,"%s",in); - exit(1); -} - -void cliptest(unsigned long *b,int vals,int bits,int *comp,int compsize){ - long bytes,i; - unsigned char *buffer; - - oggpack_reset(&o); - for(i=0;i<vals;i++) - oggpack_write(&o,b[i],bits?bits:ilog(b[i])); - buffer=oggpack_get_buffer(&o); - bytes=oggpack_bytes(&o); - if(bytes!=compsize)report("wrong number of bytes!\n"); - for(i=0;i<bytes;i++)if(buffer[i]!=comp[i]){ - for(i=0;i<bytes;i++)fprintf(stderr,"%x %x\n",(int)buffer[i],(int)comp[i]); - report("wrote incorrect value!\n"); - } - oggpack_readinit(&r,buffer,bytes); - for(i=0;i<vals;i++){ - int tbit=bits?bits:ilog(b[i]); - if(oggpack_look(&r,tbit)==-1) - report("out of data!\n"); - if(oggpack_look(&r,tbit)!=(b[i]&mask[tbit])) - report("looked at incorrect value!\n"); - if(tbit==1) - if(oggpack_look1(&r)!=(b[i]&mask[tbit])) - report("looked at single bit incorrect value!\n"); - if(tbit==1){ - if(oggpack_read1(&r)!=(b[i]&mask[tbit])) - report("read incorrect single bit value!\n"); - }else{ - if(oggpack_read(&r,tbit)!=(b[i]&mask[tbit])) - report("read incorrect value!\n"); - } - } - if(oggpack_bytes(&r)!=bytes)report("leftover bytes after read!\n"); -} - -void cliptestB(unsigned long *b,int vals,int bits,int *comp,int compsize){ - long bytes,i; - unsigned char *buffer; - - oggpackB_reset(&o); - for(i=0;i<vals;i++) - oggpackB_write(&o,b[i],bits?bits:ilog(b[i])); - buffer=oggpackB_get_buffer(&o); - bytes=oggpackB_bytes(&o); - if(bytes!=compsize)report("wrong number of bytes!\n"); - for(i=0;i<bytes;i++)if(buffer[i]!=comp[i]){ - for(i=0;i<bytes;i++)fprintf(stderr,"%x %x\n",(int)buffer[i],(int)comp[i]); - report("wrote incorrect value!\n"); - } - oggpackB_readinit(&r,buffer,bytes); - for(i=0;i<vals;i++){ - int tbit=bits?bits:ilog(b[i]); - if(oggpackB_look(&r,tbit)==-1) - report("out of data!\n"); - if(oggpackB_look(&r,tbit)!=(b[i]&mask[tbit])) - report("looked at incorrect value!\n"); - if(tbit==1) - if(oggpackB_look1(&r)!=(b[i]&mask[tbit])) - report("looked at single bit incorrect value!\n"); - if(tbit==1){ - if(oggpackB_read1(&r)!=(b[i]&mask[tbit])) - report("read incorrect single bit value!\n"); - }else{ - if(oggpackB_read(&r,tbit)!=(b[i]&mask[tbit])) - report("read incorrect value!\n"); - } - } - if(oggpackB_bytes(&r)!=bytes)report("leftover bytes after read!\n"); -} - -int main(void){ - unsigned char *buffer; - long bytes,i; - static unsigned long testbuffer1[]= - {18,12,103948,4325,543,76,432,52,3,65,4,56,32,42,34,21,1,23,32,546,456,7, - 567,56,8,8,55,3,52,342,341,4,265,7,67,86,2199,21,7,1,5,1,4}; - int test1size=43; - - static unsigned long testbuffer2[]= - {216531625L,1237861823,56732452,131,3212421,12325343,34547562,12313212, - 1233432,534,5,346435231,14436467,7869299,76326614,167548585, - 85525151,0,12321,1,349528352}; - int test2size=21; - - static unsigned long testbuffer3[]= - {1,0,14,0,1,0,12,0,1,0,0,0,1,1,0,1,0,1,0,1,0,1,0,1,0,1,0,0,1,1,1,1,1,0,0,1, - 0,1,30,1,1,1,0,0,1,0,0,0,12,0,11,0,1,0,0,1}; - int test3size=56; - - static unsigned long large[]= - {2136531625L,2137861823,56732452,131,3212421,12325343,34547562,12313212, - 1233432,534,5,2146435231,14436467,7869299,76326614,167548585, - 85525151,0,12321,1,2146528352}; - - int onesize=33; - static int one[33]={146,25,44,151,195,15,153,176,233,131,196,65,85,172,47,40, - 34,242,223,136,35,222,211,86,171,50,225,135,214,75,172, - 223,4}; - static int oneB[33]={150,101,131,33,203,15,204,216,105,193,156,65,84,85,222, - 8,139,145,227,126,34,55,244,171,85,100,39,195,173,18, - 245,251,128}; - - int twosize=6; - static int two[6]={61,255,255,251,231,29}; - static int twoB[6]={247,63,255,253,249,120}; - - int threesize=54; - static int three[54]={169,2,232,252,91,132,156,36,89,13,123,176,144,32,254, - 142,224,85,59,121,144,79,124,23,67,90,90,216,79,23,83, - 58,135,196,61,55,129,183,54,101,100,170,37,127,126,10, - 100,52,4,14,18,86,77,1}; - static int threeB[54]={206,128,42,153,57,8,183,251,13,89,36,30,32,144,183, - 130,59,240,121,59,85,223,19,228,180,134,33,107,74,98, - 233,253,196,135,63,2,110,114,50,155,90,127,37,170,104, - 200,20,254,4,58,106,176,144,0}; - - int foursize=38; - static int four[38]={18,6,163,252,97,194,104,131,32,1,7,82,137,42,129,11,72, - 132,60,220,112,8,196,109,64,179,86,9,137,195,208,122,169, - 28,2,133,0,1}; - static int fourB[38]={36,48,102,83,243,24,52,7,4,35,132,10,145,21,2,93,2,41, - 1,219,184,16,33,184,54,149,170,132,18,30,29,98,229,67, - 129,10,4,32}; - - int fivesize=45; - static int five[45]={169,2,126,139,144,172,30,4,80,72,240,59,130,218,73,62, - 241,24,210,44,4,20,0,248,116,49,135,100,110,130,181,169, - 84,75,159,2,1,0,132,192,8,0,0,18,22}; - static int fiveB[45]={1,84,145,111,245,100,128,8,56,36,40,71,126,78,213,226, - 124,105,12,0,133,128,0,162,233,242,67,152,77,205,77, - 172,150,169,129,79,128,0,6,4,32,0,27,9,0}; - - int sixsize=7; - static int six[7]={17,177,170,242,169,19,148}; - static int sixB[7]={136,141,85,79,149,200,41}; - - /* Test read/write together */ - /* Later we test against pregenerated bitstreams */ - oggpack_writeinit(&o); - - fprintf(stderr,"\nSmall preclipped packing (LSb): "); - cliptest(testbuffer1,test1size,0,one,onesize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nNull bit call (LSb): "); - cliptest(testbuffer3,test3size,0,two,twosize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nLarge preclipped packing (LSb): "); - cliptest(testbuffer2,test2size,0,three,threesize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\n32 bit preclipped packing (LSb): "); - oggpack_reset(&o); - for(i=0;i<test2size;i++) - oggpack_write(&o,large[i],32); - buffer=oggpack_get_buffer(&o); - bytes=oggpack_bytes(&o); - oggpack_readinit(&r,buffer,bytes); - for(i=0;i<test2size;i++){ - if(oggpack_look(&r,32)==-1)report("out of data. failed!"); - if(oggpack_look(&r,32)!=large[i]){ - fprintf(stderr,"%ld != %ld (%lx!=%lx):",oggpack_look(&r,32),large[i], - oggpack_look(&r,32),large[i]); - report("read incorrect value!\n"); - } - oggpack_adv(&r,32); - } - if(oggpack_bytes(&r)!=bytes)report("leftover bytes after read!\n"); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nSmall unclipped packing (LSb): "); - cliptest(testbuffer1,test1size,7,four,foursize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nLarge unclipped packing (LSb): "); - cliptest(testbuffer2,test2size,17,five,fivesize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nSingle bit unclipped packing (LSb): "); - cliptest(testbuffer3,test3size,1,six,sixsize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nTesting read past end (LSb): "); - oggpack_readinit(&r,(unsigned char *)"\0\0\0\0\0\0\0\0",8); - for(i=0;i<64;i++){ - if(oggpack_read(&r,1)!=0){ - fprintf(stderr,"failed; got -1 prematurely.\n"); - exit(1); - } - } - if(oggpack_look(&r,1)!=-1 || - oggpack_read(&r,1)!=-1){ - fprintf(stderr,"failed; read past end without -1.\n"); - exit(1); - } - oggpack_readinit(&r,(unsigned char *)"\0\0\0\0\0\0\0\0",8); - if(oggpack_read(&r,30)!=0 || oggpack_read(&r,16)!=0){ - fprintf(stderr,"failed 2; got -1 prematurely.\n"); - exit(1); - } - - if(oggpack_look(&r,18)!=0 || - oggpack_look(&r,18)!=0){ - fprintf(stderr,"failed 3; got -1 prematurely.\n"); - exit(1); - } - if(oggpack_look(&r,19)!=-1 || - oggpack_look(&r,19)!=-1){ - fprintf(stderr,"failed; read past end without -1.\n"); - exit(1); - } - if(oggpack_look(&r,32)!=-1 || - oggpack_look(&r,32)!=-1){ - fprintf(stderr,"failed; read past end without -1.\n"); - exit(1); - } - oggpack_writeclear(&o); - fprintf(stderr,"ok.\n"); - - /********** lazy, cut-n-paste retest with MSb packing ***********/ - - /* Test read/write together */ - /* Later we test against pregenerated bitstreams */ - oggpackB_writeinit(&o); - - fprintf(stderr,"\nSmall preclipped packing (MSb): "); - cliptestB(testbuffer1,test1size,0,oneB,onesize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nNull bit call (MSb): "); - cliptestB(testbuffer3,test3size,0,twoB,twosize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nLarge preclipped packing (MSb): "); - cliptestB(testbuffer2,test2size,0,threeB,threesize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\n32 bit preclipped packing (MSb): "); - oggpackB_reset(&o); - for(i=0;i<test2size;i++) - oggpackB_write(&o,large[i],32); - buffer=oggpackB_get_buffer(&o); - bytes=oggpackB_bytes(&o); - oggpackB_readinit(&r,buffer,bytes); - for(i=0;i<test2size;i++){ - if(oggpackB_look(&r,32)==-1)report("out of data. failed!"); - if(oggpackB_look(&r,32)!=large[i]){ - fprintf(stderr,"%ld != %ld (%lx!=%lx):",oggpackB_look(&r,32),large[i], - oggpackB_look(&r,32),large[i]); - report("read incorrect value!\n"); - } - oggpackB_adv(&r,32); - } - if(oggpackB_bytes(&r)!=bytes)report("leftover bytes after read!\n"); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nSmall unclipped packing (MSb): "); - cliptestB(testbuffer1,test1size,7,fourB,foursize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nLarge unclipped packing (MSb): "); - cliptestB(testbuffer2,test2size,17,fiveB,fivesize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nSingle bit unclipped packing (MSb): "); - cliptestB(testbuffer3,test3size,1,sixB,sixsize); - fprintf(stderr,"ok."); - - fprintf(stderr,"\nTesting read past end (MSb): "); - oggpackB_readinit(&r,(unsigned char *)"\0\0\0\0\0\0\0\0",8); - for(i=0;i<64;i++){ - if(oggpackB_read(&r,1)!=0){ - fprintf(stderr,"failed; got -1 prematurely.\n"); - exit(1); - } - } - if(oggpackB_look(&r,1)!=-1 || - oggpackB_read(&r,1)!=-1){ - fprintf(stderr,"failed; read past end without -1.\n"); - exit(1); - } - oggpackB_readinit(&r,(unsigned char *)"\0\0\0\0\0\0\0\0",8); - if(oggpackB_read(&r,30)!=0 || oggpackB_read(&r,16)!=0){ - fprintf(stderr,"failed 2; got -1 prematurely.\n"); - exit(1); - } - - if(oggpackB_look(&r,18)!=0 || - oggpackB_look(&r,18)!=0){ - fprintf(stderr,"failed 3; got -1 prematurely.\n"); - exit(1); - } - if(oggpackB_look(&r,19)!=-1 || - oggpackB_look(&r,19)!=-1){ - fprintf(stderr,"failed; read past end without -1.\n"); - exit(1); - } - if(oggpackB_look(&r,32)!=-1 || - oggpackB_look(&r,32)!=-1){ - fprintf(stderr,"failed; read past end without -1.\n"); - exit(1); - } - oggpackB_writeclear(&o); - fprintf(stderr,"ok.\n\n"); - - - return(0); -} -#endif /* _V_SELFTEST */ - -#undef BUFFER_INCREMENT diff --git a/src/libogg-1.3.0/src/framing.c b/src/libogg-1.3.0/src/framing.c deleted file mode 100644 index 4452cbd5..00000000 --- a/src/libogg-1.3.0/src/framing.c +++ /dev/null @@ -1,2093 +0,0 @@ -/******************************************************************** - * * - * THIS FILE IS PART OF THE Ogg CONTAINER SOURCE CODE. * - * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * - * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * - * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * - * * - * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2010 * - * by the Xiph.Org Foundation http://www.xiph.org/ * - * * - ******************************************************************** - - function: code raw packets into framed OggSquish stream and - decode Ogg streams back into raw packets - last mod: $Id: framing.c 18052 2011-08-04 17:57:02Z giles $ - - note: The CRC code is directly derived from public domain code by - Ross Williams (ross@guest.adelaide.edu.au). See docs/framing.html - for details. - - ********************************************************************/ - -#include <stdlib.h> -#include <string.h> -#include <ogg/ogg.h> - -/* A complete description of Ogg framing exists in docs/framing.html */ - -int ogg_page_version(const ogg_page *og){ - return((int)(og->header[4])); -} - -int ogg_page_continued(const ogg_page *og){ - return((int)(og->header[5]&0x01)); -} - -int ogg_page_bos(const ogg_page *og){ - return((int)(og->header[5]&0x02)); -} - -int ogg_page_eos(const ogg_page *og){ - return((int)(og->header[5]&0x04)); -} - -ogg_int64_t ogg_page_granulepos(const ogg_page *og){ - unsigned char *page=og->header; - ogg_int64_t granulepos=page[13]&(0xff); - granulepos= (granulepos<<8)|(page[12]&0xff); - granulepos= (granulepos<<8)|(page[11]&0xff); - granulepos= (granulepos<<8)|(page[10]&0xff); - granulepos= (granulepos<<8)|(page[9]&0xff); - granulepos= (granulepos<<8)|(page[8]&0xff); - granulepos= (granulepos<<8)|(page[7]&0xff); - granulepos= (granulepos<<8)|(page[6]&0xff); - return(granulepos); -} - -int ogg_page_serialno(const ogg_page *og){ - return(og->header[14] | - (og->header[15]<<8) | - (og->header[16]<<16) | - (og->header[17]<<24)); -} - -long ogg_page_pageno(const ogg_page *og){ - return(og->header[18] | - (og->header[19]<<8) | - (og->header[20]<<16) | - (og->header[21]<<24)); -} - - - -/* returns the number of packets that are completed on this page (if - the leading packet is begun on a previous page, but ends on this - page, it's counted */ - -/* NOTE: - If a page consists of a packet begun on a previous page, and a new - packet begun (but not completed) on this page, the return will be: - ogg_page_packets(page) ==1, - ogg_page_continued(page) !=0 - - If a page happens to be a single packet that was begun on a - previous page, and spans to the next page (in the case of a three or - more page packet), the return will be: - ogg_page_packets(page) ==0, - ogg_page_continued(page) !=0 -*/ - -int ogg_page_packets(const ogg_page *og){ - int i,n=og->header[26],count=0; - for(i=0;i<n;i++) - if(og->header[27+i]<255)count++; - return(count); -} - - -#if 0 -/* helper to initialize lookup for direct-table CRC (illustrative; we - use the static init below) */ - -static ogg_uint32_t _ogg_crc_entry(unsigned long index){ - int i; - unsigned long r; - - r = index << 24; - for (i=0; i<8; i++) - if (r & 0x80000000UL) - r = (r << 1) ^ 0x04c11db7; /* The same as the ethernet generator - polynomial, although we use an - unreflected alg and an init/final - of 0, not 0xffffffff */ - else - r<<=1; - return (r & 0xffffffffUL); -} -#endif - -static const ogg_uint32_t crc_lookup[256]={ - 0x00000000,0x04c11db7,0x09823b6e,0x0d4326d9, - 0x130476dc,0x17c56b6b,0x1a864db2,0x1e475005, - 0x2608edb8,0x22c9f00f,0x2f8ad6d6,0x2b4bcb61, - 0x350c9b64,0x31cd86d3,0x3c8ea00a,0x384fbdbd, - 0x4c11db70,0x48d0c6c7,0x4593e01e,0x4152fda9, - 0x5f15adac,0x5bd4b01b,0x569796c2,0x52568b75, - 0x6a1936c8,0x6ed82b7f,0x639b0da6,0x675a1011, - 0x791d4014,0x7ddc5da3,0x709f7b7a,0x745e66cd, - 0x9823b6e0,0x9ce2ab57,0x91a18d8e,0x95609039, - 0x8b27c03c,0x8fe6dd8b,0x82a5fb52,0x8664e6e5, - 0xbe2b5b58,0xbaea46ef,0xb7a96036,0xb3687d81, - 0xad2f2d84,0xa9ee3033,0xa4ad16ea,0xa06c0b5d, - 0xd4326d90,0xd0f37027,0xddb056fe,0xd9714b49, - 0xc7361b4c,0xc3f706fb,0xceb42022,0xca753d95, - 0xf23a8028,0xf6fb9d9f,0xfbb8bb46,0xff79a6f1, - 0xe13ef6f4,0xe5ffeb43,0xe8bccd9a,0xec7dd02d, - 0x34867077,0x30476dc0,0x3d044b19,0x39c556ae, - 0x278206ab,0x23431b1c,0x2e003dc5,0x2ac12072, - 0x128e9dcf,0x164f8078,0x1b0ca6a1,0x1fcdbb16, - 0x018aeb13,0x054bf6a4,0x0808d07d,0x0cc9cdca, - 0x7897ab07,0x7c56b6b0,0x71159069,0x75d48dde, - 0x6b93dddb,0x6f52c06c,0x6211e6b5,0x66d0fb02, - 0x5e9f46bf,0x5a5e5b08,0x571d7dd1,0x53dc6066, - 0x4d9b3063,0x495a2dd4,0x44190b0d,0x40d816ba, - 0xaca5c697,0xa864db20,0xa527fdf9,0xa1e6e04e, - 0xbfa1b04b,0xbb60adfc,0xb6238b25,0xb2e29692, - 0x8aad2b2f,0x8e6c3698,0x832f1041,0x87ee0df6, - 0x99a95df3,0x9d684044,0x902b669d,0x94ea7b2a, - 0xe0b41de7,0xe4750050,0xe9362689,0xedf73b3e, - 0xf3b06b3b,0xf771768c,0xfa325055,0xfef34de2, - 0xc6bcf05f,0xc27dede8,0xcf3ecb31,0xcbffd686, - 0xd5b88683,0xd1799b34,0xdc3abded,0xd8fba05a, - 0x690ce0ee,0x6dcdfd59,0x608edb80,0x644fc637, - 0x7a089632,0x7ec98b85,0x738aad5c,0x774bb0eb, - 0x4f040d56,0x4bc510e1,0x46863638,0x42472b8f, - 0x5c007b8a,0x58c1663d,0x558240e4,0x51435d53, - 0x251d3b9e,0x21dc2629,0x2c9f00f0,0x285e1d47, - 0x36194d42,0x32d850f5,0x3f9b762c,0x3b5a6b9b, - 0x0315d626,0x07d4cb91,0x0a97ed48,0x0e56f0ff, - 0x1011a0fa,0x14d0bd4d,0x19939b94,0x1d528623, - 0xf12f560e,0xf5ee4bb9,0xf8ad6d60,0xfc6c70d7, - 0xe22b20d2,0xe6ea3d65,0xeba91bbc,0xef68060b, - 0xd727bbb6,0xd3e6a601,0xdea580d8,0xda649d6f, - 0xc423cd6a,0xc0e2d0dd,0xcda1f604,0xc960ebb3, - 0xbd3e8d7e,0xb9ff90c9,0xb4bcb610,0xb07daba7, - 0xae3afba2,0xaafbe615,0xa7b8c0cc,0xa379dd7b, - 0x9b3660c6,0x9ff77d71,0x92b45ba8,0x9675461f, - 0x8832161a,0x8cf30bad,0x81b02d74,0x857130c3, - 0x5d8a9099,0x594b8d2e,0x5408abf7,0x50c9b640, - 0x4e8ee645,0x4a4ffbf2,0x470cdd2b,0x43cdc09c, - 0x7b827d21,0x7f436096,0x7200464f,0x76c15bf8, - 0x68860bfd,0x6c47164a,0x61043093,0x65c52d24, - 0x119b4be9,0x155a565e,0x18197087,0x1cd86d30, - 0x029f3d35,0x065e2082,0x0b1d065b,0x0fdc1bec, - 0x3793a651,0x3352bbe6,0x3e119d3f,0x3ad08088, - 0x2497d08d,0x2056cd3a,0x2d15ebe3,0x29d4f654, - 0xc5a92679,0xc1683bce,0xcc2b1d17,0xc8ea00a0, - 0xd6ad50a5,0xd26c4d12,0xdf2f6bcb,0xdbee767c, - 0xe3a1cbc1,0xe760d676,0xea23f0af,0xeee2ed18, - 0xf0a5bd1d,0xf464a0aa,0xf9278673,0xfde69bc4, - 0x89b8fd09,0x8d79e0be,0x803ac667,0x84fbdbd0, - 0x9abc8bd5,0x9e7d9662,0x933eb0bb,0x97ffad0c, - 0xafb010b1,0xab710d06,0xa6322bdf,0xa2f33668, - 0xbcb4666d,0xb8757bda,0xb5365d03,0xb1f740b4}; - -/* init the encode/decode logical stream state */ - -int ogg_stream_init(ogg_stream_state *os,int serialno){ - if(os){ - memset(os,0,sizeof(*os)); - os->body_storage=16*1024; - os->lacing_storage=1024; - - os->body_data=_ogg_malloc(os->body_storage*sizeof(*os->body_data)); - os->lacing_vals=_ogg_malloc(os->lacing_storage*sizeof(*os->lacing_vals)); - os->granule_vals=_ogg_malloc(os->lacing_storage*sizeof(*os->granule_vals)); - - if(!os->body_data || !os->lacing_vals || !os->granule_vals){ - ogg_stream_clear(os); - return -1; - } - - os->serialno=serialno; - - return(0); - } - return(-1); -} - -/* async/delayed error detection for the ogg_stream_state */ -int ogg_stream_check(ogg_stream_state *os){ - if(!os || !os->body_data) return -1; - return 0; -} - -/* _clear does not free os, only the non-flat storage within */ -int ogg_stream_clear(ogg_stream_state *os){ - if(os){ - if(os->body_data)_ogg_free(os->body_data); - if(os->lacing_vals)_ogg_free(os->lacing_vals); - if(os->granule_vals)_ogg_free(os->granule_vals); - - memset(os,0,sizeof(*os)); - } - return(0); -} - -int ogg_stream_destroy(ogg_stream_state *os){ - if(os){ - ogg_stream_clear(os); - _ogg_free(os); - } - return(0); -} - -/* Helpers for ogg_stream_encode; this keeps the structure and - what's happening fairly clear */ - -static int _os_body_expand(ogg_stream_state *os,int needed){ - if(os->body_storage<=os->body_fill+needed){ - void *ret; - ret=_ogg_realloc(os->body_data,(os->body_storage+needed+1024)* - sizeof(*os->body_data)); - if(!ret){ - ogg_stream_clear(os); - return -1; - } - os->body_storage+=(needed+1024); - os->body_data=ret; - } - return 0; -} - -static int _os_lacing_expand(ogg_stream_state *os,int needed){ - if(os->lacing_storage<=os->lacing_fill+needed){ - void *ret; - ret=_ogg_realloc(os->lacing_vals,(os->lacing_storage+needed+32)* - sizeof(*os->lacing_vals)); - if(!ret){ - ogg_stream_clear(os); - return -1; - } - os->lacing_vals=ret; - ret=_ogg_realloc(os->granule_vals,(os->lacing_storage+needed+32)* - sizeof(*os->granule_vals)); - if(!ret){ - ogg_stream_clear(os); - return -1; - } - os->granule_vals=ret; - os->lacing_storage+=(needed+32); - } - return 0; -} - -/* checksum the page */ -/* Direct table CRC; note that this will be faster in the future if we - perform the checksum simultaneously with other copies */ - -void ogg_page_checksum_set(ogg_page *og){ - if(og){ - ogg_uint32_t crc_reg=0; - int i; - - /* safety; needed for API behavior, but not framing code */ - og->header[22]=0; - og->header[23]=0; - og->header[24]=0; - og->header[25]=0; - - for(i=0;i<og->header_len;i++) - crc_reg=(crc_reg<<8)^crc_lookup[((crc_reg >> 24)&0xff)^og->header[i]]; - for(i=0;i<og->body_len;i++) - crc_reg=(crc_reg<<8)^crc_lookup[((crc_reg >> 24)&0xff)^og->body[i]]; - - og->header[22]=(unsigned char)(crc_reg&0xff); - og->header[23]=(unsigned char)((crc_reg>>8)&0xff); - og->header[24]=(unsigned char)((crc_reg>>16)&0xff); - og->header[25]=(unsigned char)((crc_reg>>24)&0xff); - } -} - -/* submit data to the internal buffer of the framing engine */ -int ogg_stream_iovecin(ogg_stream_state *os, ogg_iovec_t *iov, int count, - long e_o_s, ogg_int64_t granulepos){ - - int bytes = 0, lacing_vals, i; - - if(ogg_stream_check(os)) return -1; - if(!iov) return 0; - - for (i = 0; i < count; ++i) bytes += (int)iov[i].iov_len; - lacing_vals=bytes/255+1; - - if(os->body_returned){ - /* advance packet data according to the body_returned pointer. We - had to keep it around to return a pointer into the buffer last - call */ - - os->body_fill-=os->body_returned; - if(os->body_fill) - memmove(os->body_data,os->body_data+os->body_returned, - os->body_fill); - os->body_returned=0; - } - - /* make sure we have the buffer storage */ - if(_os_body_expand(os,bytes) || _os_lacing_expand(os,lacing_vals)) - return -1; - - /* Copy in the submitted packet. Yes, the copy is a waste; this is - the liability of overly clean abstraction for the time being. It - will actually be fairly easy to eliminate the extra copy in the - future */ - - for (i = 0; i < count; ++i) { - memcpy(os->body_data+os->body_fill, iov[i].iov_base, iov[i].iov_len); - os->body_fill += (int)iov[i].iov_len; - } - - /* Store lacing vals for this packet */ - for(i=0;i<lacing_vals-1;i++){ - os->lacing_vals[os->lacing_fill+i]=255; - os->granule_vals[os->lacing_fill+i]=os->granulepos; - } - os->lacing_vals[os->lacing_fill+i]=bytes%255; - os->granulepos=os->granule_vals[os->lacing_fill+i]=granulepos; - - /* flag the first segment as the beginning of the packet */ - os->lacing_vals[os->lacing_fill]|= 0x100; - - os->lacing_fill+=lacing_vals; - - /* for the sake of completeness */ - os->packetno++; - - if(e_o_s)os->e_o_s=1; - - return(0); -} - -int ogg_stream_packetin(ogg_stream_state *os,ogg_packet *op){ - ogg_iovec_t iov; - iov.iov_base = op->packet; - iov.iov_len = op->bytes; - return ogg_stream_iovecin(os, &iov, 1, op->e_o_s, op->granulepos); -} - -/* Conditionally flush a page; force==0 will only flush nominal-size - pages, force==1 forces us to flush a page regardless of page size - so long as there's any data available at all. */ -static int ogg_stream_flush_i(ogg_stream_state *os,ogg_page *og, int force, int nfill){ - int i; - int vals=0; - int maxvals=(os->lacing_fill>255?255:os->lacing_fill); - int bytes=0; - long acc=0; - ogg_int64_t granule_pos=-1; - - if(ogg_stream_check(os)) return(0); - if(maxvals==0) return(0); - - /* construct a page */ - /* decide how many segments to include */ - - /* If this is the initial header case, the first page must only include - the initial header packet */ - if(os->b_o_s==0){ /* 'initial header page' case */ - granule_pos=0; - for(vals=0;vals<maxvals;vals++){ - if((os->lacing_vals[vals]&0x0ff)<255){ - vals++; - break; - } - } - }else{ - - /* The extra packets_done, packet_just_done logic here attempts to do two things: - 1) Don't unneccessarily span pages. - 2) Unless necessary, don't flush pages if there are less than four packets on - them; this expands page size to reduce unneccessary overhead if incoming packets - are large. - These are not necessary behaviors, just 'always better than naive flushing' - without requiring an application to explicitly request a specific optimized - behavior. We'll want an explicit behavior setup pathway eventually as well. */ - - int packets_done=0; - int packet_just_done=0; - for(vals=0;vals<maxvals;vals++){ - if(acc>nfill && packet_just_done>=4){ - force=1; - break; - } - acc+=os->lacing_vals[vals]&0x0ff; - if((os->lacing_vals[vals]&0xff)<255){ - granule_pos=os->granule_vals[vals]; - packet_just_done=++packets_done; - }else - packet_just_done=0; - } - if(vals==255)force=1; - } - - if(!force) return(0); - - /* construct the header in temp storage */ - memcpy(os->header,"OggS",4); - - /* stream structure version */ - os->header[4]=0x00; - - /* continued packet flag? */ - os->header[5]=0x00; - if((os->lacing_vals[0]&0x100)==0)os->header[5]|=0x01; - /* first page flag? */ - if(os->b_o_s==0)os->header[5]|=0x02; - /* last page flag? */ - if(os->e_o_s && os->lacing_fill==vals)os->header[5]|=0x04; - os->b_o_s=1; - - /* 64 bits of PCM position */ - for(i=6;i<14;i++){ - os->header[i]=(unsigned char)(granule_pos&0xff); - granule_pos>>=8; - } - - /* 32 bits of stream serial number */ - { - long serialno=os->serialno; - for(i=14;i<18;i++){ - os->header[i]=(unsigned char)(serialno&0xff); - serialno>>=8; - } - } - - /* 32 bits of page counter (we have both counter and page header - because this val can roll over) */ - if(os->pageno==-1)os->pageno=0; /* because someone called - stream_reset; this would be a - strange thing to do in an - encode stream, but it has - plausible uses */ - { - long pageno=os->pageno++; - for(i=18;i<22;i++){ - os->header[i]=(unsigned char)(pageno&0xff); - pageno>>=8; - } - } - - /* zero for computation; filled in later */ - os->header[22]=0; - os->header[23]=0; - os->header[24]=0; - os->header[25]=0; - - /* segment table */ - os->header[26]=(unsigned char)(vals&0xff); - for(i=0;i<vals;i++) - bytes+=os->header[i+27]=(unsigned char)(os->lacing_vals[i]&0xff); - - /* set pointers in the ogg_page struct */ - og->header=os->header; - og->header_len=os->header_fill=vals+27; - og->body=os->body_data+os->body_returned; - og->body_len=bytes; - - /* advance the lacing data and set the body_returned pointer */ - - os->lacing_fill-=vals; - memmove(os->lacing_vals,os->lacing_vals+vals,os->lacing_fill*sizeof(*os->lacing_vals)); - memmove(os->granule_vals,os->granule_vals+vals,os->lacing_fill*sizeof(*os->granule_vals)); - os->body_returned+=bytes; - - /* calculate the checksum */ - - ogg_page_checksum_set(og); - - /* done */ - return(1); -} - -/* This will flush remaining packets into a page (returning nonzero), - even if there is not enough data to trigger a flush normally - (undersized page). If there are no packets or partial packets to - flush, ogg_stream_flush returns 0. Note that ogg_stream_flush will - try to flush a normal sized page like ogg_stream_pageout; a call to - ogg_stream_flush does not guarantee that all packets have flushed. - Only a return value of 0 from ogg_stream_flush indicates all packet - data is flushed into pages. - - since ogg_stream_flush will flush the last page in a stream even if - it's undersized, you almost certainly want to use ogg_stream_pageout - (and *not* ogg_stream_flush) unless you specifically need to flush - a page regardless of size in the middle of a stream. */ - -int ogg_stream_flush(ogg_stream_state *os,ogg_page *og){ - return ogg_stream_flush_i(os,og,1,4096); -} - -/* Like the above, but an argument is provided to adjust the nominal - page size for applications which are smart enough to provide their - own delay based flushing */ - -int ogg_stream_flush_fill(ogg_stream_state *os,ogg_page *og, int nfill){ - return ogg_stream_flush_i(os,og,1,nfill); -} - -/* This constructs pages from buffered packet segments. The pointers -returned are to static buffers; do not free. The returned buffers are -good only until the next call (using the same ogg_stream_state) */ - -int ogg_stream_pageout(ogg_stream_state *os, ogg_page *og){ - int force=0; - if(ogg_stream_check(os)) return 0; - - if((os->e_o_s&&os->lacing_fill) || /* 'were done, now flush' case */ - (os->lacing_fill&&!os->b_o_s)) /* 'initial header page' case */ - force=1; - - return(ogg_stream_flush_i(os,og,force,4096)); -} - -/* Like the above, but an argument is provided to adjust the nominal -page size for applications which are smart enough to provide their -own delay based flushing */ - -int ogg_stream_pageout_fill(ogg_stream_state *os, ogg_page *og, int nfill){ - int force=0; - if(ogg_stream_check(os)) return 0; - - if((os->e_o_s&&os->lacing_fill) || /* 'were done, now flush' case */ - (os->lacing_fill&&!os->b_o_s)) /* 'initial header page' case */ - force=1; - - return(ogg_stream_flush_i(os,og,force,nfill)); -} - -int ogg_stream_eos(ogg_stream_state *os){ - if(ogg_stream_check(os)) return 1; - return os->e_o_s; -} - -/* DECODING PRIMITIVES: packet streaming layer **********************/ - -/* This has two layers to place more of the multi-serialno and paging - control in the application's hands. First, we expose a data buffer - using ogg_sync_buffer(). The app either copies into the - buffer, or passes it directly to read(), etc. We then call - ogg_sync_wrote() to tell how many bytes we just added. - - Pages are returned (pointers into the buffer in ogg_sync_state) - by ogg_sync_pageout(). The page is then submitted to - ogg_stream_pagein() along with the appropriate - ogg_stream_state* (ie, matching serialno). We then get raw - packets out calling ogg_stream_packetout() with a - ogg_stream_state. */ - -/* initialize the struct to a known state */ -int ogg_sync_init(ogg_sync_state *oy){ - if(oy){ - oy->storage = -1; /* used as a readiness flag */ - memset(oy,0,sizeof(*oy)); - } - return(0); -} - -/* clear non-flat storage within */ -int ogg_sync_clear(ogg_sync_state *oy){ - if(oy){ - if(oy->data)_ogg_free(oy->data); - memset(oy,0,sizeof(*oy)); - } - return(0); -} - -int ogg_sync_destroy(ogg_sync_state *oy){ - if(oy){ - ogg_sync_clear(oy); - _ogg_free(oy); - } - return(0); -} - -int ogg_sync_check(ogg_sync_state *oy){ - if(oy->storage<0) return -1; - return 0; -} - -char *ogg_sync_buffer(ogg_sync_state *oy, long size){ - if(ogg_sync_check(oy)) return NULL; - - /* first, clear out any space that has been previously returned */ - if(oy->returned){ - oy->fill-=oy->returned; - if(oy->fill>0) - memmove(oy->data,oy->data+oy->returned,oy->fill); - oy->returned=0; - } - - if(size>oy->storage-oy->fill){ - /* We need to extend the internal buffer */ - long newsize=size+oy->fill+4096; /* an extra page to be nice */ - void *ret; - - if(oy->data) - ret=_ogg_realloc(oy->data,newsize); - else - ret=_ogg_malloc(newsize); - if(!ret){ - ogg_sync_clear(oy); - return NULL; - } - oy->data=ret; - oy->storage=newsize; - } - - /* expose a segment at least as large as requested at the fill mark */ - return((char *)oy->data+oy->fill); -} - -int ogg_sync_wrote(ogg_sync_state *oy, long bytes){ - if(ogg_sync_check(oy))return -1; - if(oy->fill+bytes>oy->storage)return -1; - oy->fill+=bytes; - return(0); -} - -/* sync the stream. This is meant to be useful for finding page - boundaries. - - return values for this: - -n) skipped n bytes - 0) page not ready; more data (no bytes skipped) - n) page synced at current location; page length n bytes - -*/ - -long ogg_sync_pageseek(ogg_sync_state *oy,ogg_page *og){ - unsigned char *page=oy->data+oy->returned; - unsigned char *next; - long bytes=oy->fill-oy->returned; - - if(ogg_sync_check(oy))return 0; - - if(oy->headerbytes==0){ - int headerbytes,i; - if(bytes<27)return(0); /* not enough for a header */ - - /* verify capture pattern */ - if(memcmp(page,"OggS",4))goto sync_fail; - - headerbytes=page[26]+27; - if(bytes<headerbytes)return(0); /* not enough for header + seg table */ - - /* count up body length in the segment table */ - - for(i=0;i<page[26];i++) - oy->bodybytes+=page[27+i]; - oy->headerbytes=headerbytes; - } - - if(oy->bodybytes+oy->headerbytes>bytes)return(0); - - /* The whole test page is buffered. Verify the checksum */ - { - /* Grab the checksum bytes, set the header field to zero */ - char chksum[4]; - ogg_page log; - - memcpy(chksum,page+22,4); - memset(page+22,0,4); - - /* set up a temp page struct and recompute the checksum */ - log.header=page; - log.header_len=oy->headerbytes; - log.body=page+oy->headerbytes; - log.body_len=oy->bodybytes; - ogg_page_checksum_set(&log); - - /* Compare */ - if(memcmp(chksum,page+22,4)){ - /* D'oh. Mismatch! Corrupt page (or miscapture and not a page - at all) */ - /* replace the computed checksum with the one actually read in */ - memcpy(page+22,chksum,4); - - /* Bad checksum. Lose sync */ - goto sync_fail; - } - } - - /* yes, have a whole page all ready to go */ - { - unsigned char *page=oy->data+oy->returned; - long bytes; - - if(og){ - og->header=page; - og->header_len=oy->headerbytes; - og->body=page+oy->headerbytes; - og->body_len=oy->bodybytes; - } - - oy->unsynced=0; - oy->returned+=(bytes=oy->headerbytes+oy->bodybytes); - oy->headerbytes=0; - oy->bodybytes=0; - return(bytes); - } - - sync_fail: - - oy->headerbytes=0; - oy->bodybytes=0; - - /* search for possible capture */ - next=memchr(page+1,'O',bytes-1); - if(!next) - next=oy->data+oy->fill; - - oy->returned=(int)(next-oy->data); - return((long)-(next-page)); -} - -/* sync the stream and get a page. Keep trying until we find a page. - Suppress 'sync errors' after reporting the first. - - return values: - -1) recapture (hole in data) - 0) need more data - 1) page returned - - Returns pointers into buffered data; invalidated by next call to - _stream, _clear, _init, or _buffer */ - -int ogg_sync_pageout(ogg_sync_state *oy, ogg_page *og){ - - if(ogg_sync_check(oy))return 0; - - /* all we need to do is verify a page at the head of the stream - buffer. If it doesn't verify, we look for the next potential - frame */ - - for(;;){ - long ret=ogg_sync_pageseek(oy,og); - if(ret>0){ - /* have a page */ - return(1); - } - if(ret==0){ - /* need more data */ - return(0); - } - - /* head did not start a synced page... skipped some bytes */ - if(!oy->unsynced){ - oy->unsynced=1; - return(-1); - } - - /* loop. keep looking */ - - } -} - -/* add the incoming page to the stream state; we decompose the page - into packet segments here as well. */ - -int ogg_stream_pagein(ogg_stream_state *os, ogg_page *og){ - unsigned char *header=og->header; - unsigned char *body=og->body; - long bodysize=og->body_len; - int segptr=0; - - int version=ogg_page_version(og); - int continued=ogg_page_continued(og); - int bos=ogg_page_bos(og); - int eos=ogg_page_eos(og); - ogg_int64_t granulepos=ogg_page_granulepos(og); - int serialno=ogg_page_serialno(og); - long pageno=ogg_page_pageno(og); - int segments=header[26]; - - if(ogg_stream_check(os)) return -1; - - /* clean up 'returned data' */ - { - long lr=os->lacing_returned; - long br=os->body_returned; - - /* body data */ - if(br){ - os->body_fill-=br; - if(os->body_fill) - memmove(os->body_data,os->body_data+br,os->body_fill); - os->body_returned=0; - } - - if(lr){ - /* segment table */ - if(os->lacing_fill-lr){ - memmove(os->lacing_vals,os->lacing_vals+lr, - (os->lacing_fill-lr)*sizeof(*os->lacing_vals)); - memmove(os->granule_vals,os->granule_vals+lr, - (os->lacing_fill-lr)*sizeof(*os->granule_vals)); - } - os->lacing_fill-=lr; - os->lacing_packet-=lr; - os->lacing_returned=0; - } - } - - /* check the serial number */ - if(serialno!=os->serialno)return(-1); - if(version>0)return(-1); - - if(_os_lacing_expand(os,segments+1)) return -1; - - /* are we in sequence? */ - if(pageno!=os->pageno){ - int i; - - /* unroll previous partial packet (if any) */ - for(i=os->lacing_packet;i<os->lacing_fill;i++) - os->body_fill-=os->lacing_vals[i]&0xff; - os->lacing_fill=os->lacing_packet; - - /* make a note of dropped data in segment table */ - if(os->pageno!=-1){ - os->lacing_vals[os->lacing_fill++]=0x400; - os->lacing_packet++; - } - } - - /* are we a 'continued packet' page? If so, we may need to skip - some segments */ - if(continued){ - if(os->lacing_fill<1 || - os->lacing_vals[os->lacing_fill-1]==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}; - -void test_pack(const int *pl, const int **headers, int byteskip, - int pageskip, int packetskip){ - unsigned char *data=_ogg_malloc(1024*1024); /* for scripted test cases only */ - long inptr=0; - long outptr=0; - long deptr=0; - long depacket=0; - long granule_pos=7,pageno=0; - int i,j,packets,pageout=pageskip; - int eosflag=0; - int bosflag=0; - - int byteskipcount=0; - - ogg_stream_reset(&os_en); - ogg_stream_reset(&os_de); - ogg_sync_reset(&oy); - - for(packets=0;packets<packetskip;packets++) - depacket+=pl[packets]; - - for(packets=0;;packets++)if(pl[packets]==-1)break; - - for(i=0;i<packets;i++){ - /* construct a test packet */ - ogg_packet op; - int len=pl[i]; - - op.packet=data+inptr; - op.bytes=len; - op.e_o_s=(pl[i+1]<0?1:0); - op.granulepos=granule_pos; - - granule_pos+=1024; - - for(j=0;j<len;j++)data[inptr++]=i+j; - - /* submit the test packet */ - ogg_stream_packetin(&os_en,&op); - - /* retrieve any finished pages */ - { - ogg_page og; - - while(ogg_stream_pageout(&os_en,&og)){ - /* We have a page. Check it carefully */ - - fprintf(stderr,"%ld, ",pageno); - - if(headers[pageno]==NULL){ - fprintf(stderr,"coded too many pages!\n"); - exit(1); - } - - check_page(data+outptr,headers[pageno],&og); - - outptr+=og.body_len; - pageno++; - if(pageskip){ - bosflag=1; - pageskip--; - deptr+=og.body_len; - } - - /* have a complete page; submit it to sync/decode */ - - { - ogg_page og_de; - ogg_packet op_de,op_de2; - char *buf=ogg_sync_buffer(&oy,og.header_len+og.body_len); - char *next=buf; - byteskipcount+=og.header_len; - if(byteskipcount>byteskip){ - memcpy(next,og.header,byteskipcount-byteskip); - next+=byteskipcount-byteskip; - byteskipcount=byteskip; - } - - byteskipcount+=og.body_len; - if(byteskipcount>byteskip){ - memcpy(next,og.body,byteskipcount-byteskip); - next+=byteskipcount-byteskip; - byteskipcount=byteskip; - } - - ogg_sync_wrote(&oy,next-buf); - - while(1){ - int ret=ogg_sync_pageout(&oy,&og_de); - if(ret==0)break; - if(ret<0)continue; - /* got a page. Happy happy. Verify that it's good. */ - - fprintf(stderr,"(%d), ",pageout); - - check_page(data+deptr,headers[pageout],&og_de); - deptr+=og_de.body_len; - pageout++; - - /* submit it to deconstitution */ - ogg_stream_pagein(&os_de,&og_de); - - /* packets out? */ - while(ogg_stream_packetpeek(&os_de,&op_de2)>0){ - ogg_stream_packetpeek(&os_de,NULL); - ogg_stream_packetout(&os_de,&op_de); /* just catching them all */ - - /* verify peek and out match */ - if(memcmp(&op_de,&op_de2,sizeof(op_de))){ - fprintf(stderr,"packetout != packetpeek! pos=%ld\n", - depacket); - exit(1); - } - - /* verify the packet! */ - /* check data */ - if(memcmp(data+depacket,op_de.packet,op_de.bytes)){ - fprintf(stderr,"packet data mismatch in decode! pos=%ld\n", - depacket); - exit(1); - } - /* check bos flag */ - if(bosflag==0 && op_de.b_o_s==0){ - fprintf(stderr,"b_o_s flag not set on packet!\n"); - exit(1); - } - if(bosflag && op_de.b_o_s){ - fprintf(stderr,"b_o_s flag incorrectly set on packet!\n"); - exit(1); - } - bosflag=1; - depacket+=op_de.bytes; - - /* check eos flag */ - if(eosflag){ - fprintf(stderr,"Multiple decoded packets with eos flag!\n"); - exit(1); - } - - if(op_de.e_o_s)eosflag=1; - - /* check granulepos flag */ - if(op_de.granulepos!=-1){ - fprintf(stderr," granule:%ld ",(long)op_de.granulepos); - } - } - } - } - } - } - } - _ogg_free(data); - if(headers[pageno]!=NULL){ - fprintf(stderr,"did not write last page!\n"); - exit(1); - } - if(headers[pageout]!=NULL){ - fprintf(stderr,"did not decode last page!\n"); - exit(1); - } - if(inptr!=outptr){ - fprintf(stderr,"encoded page data incomplete!\n"); - exit(1); - } - if(inptr!=deptr){ - fprintf(stderr,"decoded page data incomplete!\n"); - exit(1); - } - if(inptr!=depacket){ - fprintf(stderr,"decoded packet data incomplete!\n"); - exit(1); - } - if(!eosflag){ - fprintf(stderr,"Never got a packet with EOS set!\n"); - exit(1); - } - fprintf(stderr,"ok.\n"); -} - -int main(void){ - - ogg_stream_init(&os_en,0x04030201); - ogg_stream_init(&os_de,0x04030201); - ogg_sync_init(&oy); - - /* Exercise each code path in the framing code. Also verify that - the checksums are working. */ - - { - /* 17 only */ - const int packets[]={17, -1}; - const int *headret[]={head1_0,NULL}; - - fprintf(stderr,"testing single page encoding... "); - test_pack(packets,headret,0,0,0); - } - - { - /* 17, 254, 255, 256, 500, 510, 600 byte, pad */ - const int packets[]={17, 254, 255, 256, 500, 510, 600, -1}; - const int *headret[]={head1_1,head2_1,NULL}; - - fprintf(stderr,"testing basic page encoding... "); - test_pack(packets,headret,0,0,0); - } - - { - /* nil packets; beginning,middle,end */ - const int packets[]={0,17, 254, 255, 0, 256, 0, 500, 510, 600, 0, -1}; - const int *headret[]={head1_2,head2_2,NULL}; - - fprintf(stderr,"testing basic nil packets... "); - test_pack(packets,headret,0,0,0); - } - - { - /* large initial packet */ - const int packets[]={4345,259,255,-1}; - const int *headret[]={head1_3,head2_3,NULL}; - - fprintf(stderr,"testing initial-packet lacing > 4k... "); - test_pack(packets,headret,0,0,0); - } - - { - /* continuing packet test; with page spill expansion, we have to - overflow the lacing table. */ - const int packets[]={0,65500,259,255,-1}; - const int *headret[]={head1_4,head2_4,head3_4,NULL}; - - fprintf(stderr,"testing single packet page span... "); - test_pack(packets,headret,0,0,0); - } - - { - /* spill expand packet test */ - const int packets[]={0,4345,259,255,0,0,-1}; - const int *headret[]={head1_4b,head2_4b,head3_4b,NULL}; - - fprintf(stderr,"testing page spill expansion... "); - test_pack(packets,headret,0,0,0); - } - - /* page with the 255 segment limit */ - { - - const int packets[]={0,10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,10, - 10,10,10,10,10,10,10,50,-1}; - const int *headret[]={head1_5,head2_5,head3_5,NULL}; - - fprintf(stderr,"testing max packet segments... "); - test_pack(packets,headret,0,0,0); - } - - { - /* packet that overspans over an entire page */ - const int packets[]={0,100,130049,259,255,-1}; - const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL}; - - fprintf(stderr,"testing very large packets... "); - test_pack(packets,headret,0,0,0); - } - - { - /* test for the libogg 1.1.1 resync in large continuation bug - found by Josh Coalson) */ - const int packets[]={0,100,130049,259,255,-1}; - const int *headret[]={head1_6,head2_6,head3_6,head4_6,NULL}; - - fprintf(stderr,"testing continuation resync in very large packets... "); - test_pack(packets,headret,100,2,3); - } - - { - /* term only page. why not? */ - const int packets[]={0,100,64770,-1}; - const int *headret[]={head1_7,head2_7,head3_7,NULL}; - - fprintf(stderr,"testing zero data page (1 nil packet)... "); - test_pack(packets,headret,0,0,0); - } - - - - { - /* build a bunch of pages for testing */ - unsigned char *data=_ogg_malloc(1024*1024); - int pl[]={0, 1,1,98,4079, 1,1,2954,2057, 76,34,912,0,234,1000,1000, 1000,300,-1}; - int inptr=0,i,j; - ogg_page og[5]; - - ogg_stream_reset(&os_en); - - for(i=0;pl[i]!=-1;i++){ - ogg_packet op; - int len=pl[i]; - - op.packet=data+inptr; - op.bytes=len; - op.e_o_s=(pl[i+1]<0?1:0); - op.granulepos=(i+1)*1000; - - for(j=0;j<len;j++)data[inptr++]=i+j; - ogg_stream_packetin(&os_en,&op); - } - - _ogg_free(data); - - /* retrieve finished pages */ - for(i=0;i<5;i++){ - if(ogg_stream_pageout(&os_en,&og[i])==0){ - fprintf(stderr,"Too few pages output building sync tests!\n"); - exit(1); - } - copy_page(&og[i]); - } - - /* Test lost pages on pagein/packetout: no rollback */ - { - ogg_page temp; - ogg_packet test; - - fprintf(stderr,"Testing loss of pages... "); - - ogg_sync_reset(&oy); - ogg_stream_reset(&os_de); - for(i=0;i<5;i++){ - memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header, - og[i].header_len); - ogg_sync_wrote(&oy,og[i].header_len); - memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len); - ogg_sync_wrote(&oy,og[i].body_len); - } - - ogg_sync_pageout(&oy,&temp); - ogg_stream_pagein(&os_de,&temp); - ogg_sync_pageout(&oy,&temp); - ogg_stream_pagein(&os_de,&temp); - ogg_sync_pageout(&oy,&temp); - /* skip */ - ogg_sync_pageout(&oy,&temp); - ogg_stream_pagein(&os_de,&temp); - - /* do we get the expected results/packets? */ - - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,0,0,0); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,1,1,-1); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,1,2,-1); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,98,3,-1); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,4079,4,5000); - if(ogg_stream_packetout(&os_de,&test)!=-1){ - fprintf(stderr,"Error: loss of page did not return error\n"); - exit(1); - } - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,76,9,-1); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,34,10,-1); - fprintf(stderr,"ok.\n"); - } - - /* Test lost pages on pagein/packetout: rollback with continuation */ - { - ogg_page temp; - ogg_packet test; - - fprintf(stderr,"Testing loss of pages (rollback required)... "); - - ogg_sync_reset(&oy); - ogg_stream_reset(&os_de); - for(i=0;i<5;i++){ - memcpy(ogg_sync_buffer(&oy,og[i].header_len),og[i].header, - og[i].header_len); - ogg_sync_wrote(&oy,og[i].header_len); - memcpy(ogg_sync_buffer(&oy,og[i].body_len),og[i].body,og[i].body_len); - ogg_sync_wrote(&oy,og[i].body_len); - } - - ogg_sync_pageout(&oy,&temp); - ogg_stream_pagein(&os_de,&temp); - ogg_sync_pageout(&oy,&temp); - ogg_stream_pagein(&os_de,&temp); - ogg_sync_pageout(&oy,&temp); - ogg_stream_pagein(&os_de,&temp); - ogg_sync_pageout(&oy,&temp); - /* skip */ - ogg_sync_pageout(&oy,&temp); - ogg_stream_pagein(&os_de,&temp); - - /* do we get the expected results/packets? */ - - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,0,0,0); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,1,1,-1); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,1,2,-1); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,98,3,-1); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,4079,4,5000); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,1,5,-1); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,1,6,-1); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,2954,7,-1); - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,2057,8,9000); - if(ogg_stream_packetout(&os_de,&test)!=-1){ - fprintf(stderr,"Error: loss of page did not return error\n"); - exit(1); - } - if(ogg_stream_packetout(&os_de,&test)!=1)error(); - checkpacket(&test,300,17,18000); - fprintf(stderr,"ok.\n"); - } - - /* the rest only test sync */ - { - ogg_page og_de; - /* Test fractional page inputs: incomplete capture */ - fprintf(stderr,"Testing sync on partial inputs... "); - ogg_sync_reset(&oy); - memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, - 3); - ogg_sync_wrote(&oy,3); - if(ogg_sync_pageout(&oy,&og_de)>0)error(); - - /* Test fractional page inputs: incomplete fixed header */ - memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+3, - 20); - ogg_sync_wrote(&oy,20); - if(ogg_sync_pageout(&oy,&og_de)>0)error(); - - /* Test fractional page inputs: incomplete header */ - memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+23, - 5); - ogg_sync_wrote(&oy,5); - if(ogg_sync_pageout(&oy,&og_de)>0)error(); - - /* Test fractional page inputs: incomplete body */ - - memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+28, - og[1].header_len-28); - ogg_sync_wrote(&oy,og[1].header_len-28); - if(ogg_sync_pageout(&oy,&og_de)>0)error(); - - memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body,1000); - ogg_sync_wrote(&oy,1000); - if(ogg_sync_pageout(&oy,&og_de)>0)error(); - - memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body+1000, - og[1].body_len-1000); - ogg_sync_wrote(&oy,og[1].body_len-1000); - if(ogg_sync_pageout(&oy,&og_de)<=0)error(); - - fprintf(stderr,"ok.\n"); - } - - /* Test fractional page inputs: page + incomplete capture */ - { - ogg_page og_de; - fprintf(stderr,"Testing sync on 1+partial inputs... "); - ogg_sync_reset(&oy); - - memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, - og[1].header_len); - ogg_sync_wrote(&oy,og[1].header_len); - - memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, - og[1].body_len); - ogg_sync_wrote(&oy,og[1].body_len); - - memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, - 20); - ogg_sync_wrote(&oy,20); - if(ogg_sync_pageout(&oy,&og_de)<=0)error(); - if(ogg_sync_pageout(&oy,&og_de)>0)error(); - - memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header+20, - og[1].header_len-20); - ogg_sync_wrote(&oy,og[1].header_len-20); - memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, - og[1].body_len); - ogg_sync_wrote(&oy,og[1].body_len); - if(ogg_sync_pageout(&oy,&og_de)<=0)error(); - - fprintf(stderr,"ok.\n"); - } - - /* Test recapture: garbage + page */ - { - ogg_page og_de; - fprintf(stderr,"Testing search for capture... "); - ogg_sync_reset(&oy); - - /* 'garbage' */ - memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, - og[1].body_len); - ogg_sync_wrote(&oy,og[1].body_len); - - memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, - og[1].header_len); - ogg_sync_wrote(&oy,og[1].header_len); - - memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, - og[1].body_len); - ogg_sync_wrote(&oy,og[1].body_len); - - memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header, - 20); - ogg_sync_wrote(&oy,20); - if(ogg_sync_pageout(&oy,&og_de)>0)error(); - if(ogg_sync_pageout(&oy,&og_de)<=0)error(); - if(ogg_sync_pageout(&oy,&og_de)>0)error(); - - memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header+20, - og[2].header_len-20); - ogg_sync_wrote(&oy,og[2].header_len-20); - memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body, - og[2].body_len); - ogg_sync_wrote(&oy,og[2].body_len); - if(ogg_sync_pageout(&oy,&og_de)<=0)error(); - - fprintf(stderr,"ok.\n"); - } - - /* Test recapture: page + garbage + page */ - { - ogg_page og_de; - fprintf(stderr,"Testing recapture... "); - ogg_sync_reset(&oy); - - memcpy(ogg_sync_buffer(&oy,og[1].header_len),og[1].header, - og[1].header_len); - ogg_sync_wrote(&oy,og[1].header_len); - - memcpy(ogg_sync_buffer(&oy,og[1].body_len),og[1].body, - og[1].body_len); - ogg_sync_wrote(&oy,og[1].body_len); - - memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header, - og[2].header_len); - ogg_sync_wrote(&oy,og[2].header_len); - - memcpy(ogg_sync_buffer(&oy,og[2].header_len),og[2].header, - og[2].header_len); - ogg_sync_wrote(&oy,og[2].header_len); - - if(ogg_sync_pageout(&oy,&og_de)<=0)error(); - - memcpy(ogg_sync_buffer(&oy,og[2].body_len),og[2].body, - og[2].body_len-5); - ogg_sync_wrote(&oy,og[2].body_len-5); - - memcpy(ogg_sync_buffer(&oy,og[3].header_len),og[3].header, - og[3].header_len); - ogg_sync_wrote(&oy,og[3].header_len); - - memcpy(ogg_sync_buffer(&oy,og[3].body_len),og[3].body, - og[3].body_len); - ogg_sync_wrote(&oy,og[3].body_len); - - if(ogg_sync_pageout(&oy,&og_de)>0)error(); - if(ogg_sync_pageout(&oy,&og_de)<=0)error(); - - fprintf(stderr,"ok.\n"); - } - - /* Free page data that was previously copied */ - { - for(i=0;i<5;i++){ - free_page(&og[i]); - } - } - } - - return(0); -} - -#endif |