| /******************************************************************** |
| * * |
| * 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: $Id$ |
| |
| ********************************************************************/ |
| |
| /* 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); |
| } |
| |
| int oggpack_writecheck(oggpack_buffer *b){ |
| if(!b->ptr || !b->storage)return -1; |
| return 0; |
| } |
| |
| int oggpackB_writecheck(oggpack_buffer *b){ |
| return oggpackB_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(b->endbyte+4>=b->storage){ |
| void *ret; |
| if(!b->ptr)return; |
| ret=_ogg_realloc(b->buffer,b->storage+BUFFER_INCREMENT); |
| if(!ret){ |
| oggpack_writeclear(b); |
| return; |
| } |
| 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; |
| } |
| |
| /* Takes only up to 32 bits. */ |
| void oggpackB_write(oggpack_buffer *b,unsigned long value,int bits){ |
| if(b->endbyte+4>=b->storage){ |
| void *ret; |
| if(!b->ptr)return; |
| ret=_ogg_realloc(b->buffer,b->storage+BUFFER_INCREMENT); |
| if(!ret){ |
| oggpack_writeclear(b); |
| return; |
| } |
| 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; |
| } |
| |
| 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)return; |
| b->storage=b->endbyte+bytes+BUFFER_INCREMENT; |
| ret=_ogg_realloc(b->buffer,b->storage); |
| if(!ret){ |
| oggpack_writeclear(b); |
| return; |
| } |
| 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); |
| } |
| } |
| |
| 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=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; |
| /* 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); |
| |
| 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 |