+++ /dev/null
-/********************************************************************
- * *
- * 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: packing variable sized words into an octet stream
- last mod: $Id: bitwise.c 7675 2004-09-01 00:34:39Z xiphmont $
-
- ********************************************************************/
-
-/* 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 <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);
-}
-
-void oggpack_writetrunc(oggpack_buffer *b,long bits){
- long bytes=bits>>3;
- 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;
- 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(b->endbyte+4>=b->storage){
- b->buffer=_ogg_realloc(b->buffer,b->storage+BUFFER_INCREMENT);
- 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;
-}
-
-/* Takes only up to 32 bits. */
-void oggpackB_write(oggpack_buffer *b,unsigned long value,int bits){
- if(b->endbyte+4>=b->storage){
- b->buffer=_ogg_realloc(b->buffer,b->storage+BUFFER_INCREMENT);
- 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;
-}
-
-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){
- b->storage=b->endbyte+bytes+BUFFER_INCREMENT;
- b->buffer=_ogg_realloc(b->buffer,b->storage);
- 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);
- }
-}
-
-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){
- 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){
- _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=mask[bits];
-
- bits+=b->endbit;
-
- if(b->endbyte+4>=b->storage){
- /* not the main path */
- if(b->endbyte*8+bits>b->storage*8)return(-1);
- }
-
- 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;
-
- bits+=b->endbit;
-
- if(b->endbyte+4>=b->storage){
- /* not the main path */
- if(b->endbyte*8+bits>b->storage*8)return(-1);
- }
-
- 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;
- b->ptr+=bits/8;
- b->endbyte+=bits/8;
- b->endbit=bits&7;
-}
-
-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=mask[bits];
-
- bits+=b->endbit;
-
- if(b->endbyte+4>=b->storage){
- /* not the main path */
- ret=-1L;
- if(b->endbyte*8+bits>b->storage*8)goto overflow;
- }
-
- 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;
-
- overflow:
-
- b->ptr+=bits/8;
- b->endbyte+=bits/8;
- b->endbit=bits&7;
- return(ret);
-}
-
-/* bits <= 32 */
-long oggpackB_read(oggpack_buffer *b,int bits){
- long ret;
- long m=32-bits;
-
- bits+=b->endbit;
-
- if(b->endbyte+4>=b->storage){
- /* not the main path */
- ret=-1L;
- if(b->endbyte*8+bits>b->storage*8)goto overflow;
- }
-
- 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);
-
- overflow:
-
- b->ptr+=bits/8;
- b->endbyte+=bits/8;
- b->endbit=bits&7;
- return(ret);
-}
-
-long oggpack_read1(oggpack_buffer *b){
- long ret;
-
- if(b->endbyte>=b->storage){
- /* not the main path */
- ret=-1L;
- goto overflow;
- }
-
- ret=(b->ptr[0]>>b->endbit)&1;
-
- overflow:
-
- b->endbit++;
- if(b->endbit>7){
- b->endbit=0;
- b->ptr++;
- b->endbyte++;
- }
- return(ret);
-}
-
-long oggpackB_read1(oggpack_buffer *b){
- long ret;
-
- if(b->endbyte>=b->storage){
- /* not the main path */
- ret=-1L;
- goto overflow;
- }
-
- ret=(b->ptr[0]>>(7-b->endbit))&1;
-
- overflow:
-
- b->endbit++;
- if(b->endbit>7){
- b->endbit=0;
- b->ptr++;
- b->endbyte++;
- }
- return(ret);
-}
-
-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,"\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,"\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,"\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,"\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
projects / vuplus_xbmc / blobdiff