AuroraMiddleware/ogg
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ack, some of the '_' were still lingering.

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svn path=/trunk/ogg/; revision=648
This commit is contained in:
Jack Moffitt 2000-09-07 00:38:33 +00:00
parent aefbc637cc
commit 93f5598a69
2 changed files with 53 additions and 53 deletions
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2
include/ogg/ogg.h
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@ -108,7 +108,7 @@ 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_buffer(oggpack_buffer *b);
extern unsigned char *oggpack_get_buffer(oggpack_buffer *b);
/* Ogg BITSTREAM PRIMITIVES: encoding **************************/

104
src/bitwise.c
View File

@ -12,7 +12,7 @@
********************************************************************
function: packing variable sized words into an octet stream
last mod: $Id: bitwise.c,v 1.1 2000/09/03 05:54:28 jack Exp $
last mod: $Id: bitwise.c,v 1.2 2000/09/07 00:38:33 jack Exp $
********************************************************************/
@ -34,32 +34,32 @@ static unsigned long mask[]=
0x01ffffff,0x03ffffff,0x07ffffff,0x0fffffff,0x1fffffff,
0x3fffffff,0x7fffffff,0xffffffff };
void _oggpack_writeinit(oggpack_buffer *b){
void oggpack_writeinit(oggpack_buffer *b){
memset(b,0,sizeof(oggpack_buffer));
b->ptr=b->buffer=malloc(BUFFER_INCREMENT);
b->buffer[0]='\0';
b->storage=BUFFER_INCREMENT;
}
void _oggpack_reset(oggpack_buffer *b){
void oggpack_reset(oggpack_buffer *b){
b->ptr=b->buffer;
b->buffer[0]=0;
b->endbit=b->endbyte=0;
}
void _oggpack_writeclear(oggpack_buffer *b){
void oggpack_writeclear(oggpack_buffer *b){
free(b->buffer);
memset(b,0,sizeof(oggpack_buffer));
}
void _oggpack_readinit(oggpack_buffer *b,unsigned char *buf,int bytes){
void oggpack_readinit(oggpack_buffer *b,unsigned char *buf,int bytes){
memset(b,0,sizeof(oggpack_buffer));
b->buffer=b->ptr=buf;
b->storage=bytes;
}
/* Takes only up to 32 bits. */
void _oggpack_write(oggpack_buffer *b,unsigned long value,int bits){
void oggpack_write(oggpack_buffer *b,unsigned long value,int bits){
if(b->endbyte+4>=b->storage){
b->buffer=realloc(b->buffer,b->storage+BUFFER_INCREMENT);
b->storage+=BUFFER_INCREMENT;
@ -93,7 +93,7 @@ void _oggpack_write(oggpack_buffer *b,unsigned long value,int bits){
}
/* Read in bits without advancing the bitptr; bits <= 32 */
long _oggpack_look(oggpack_buffer *b,int bits){
long oggpack_look(oggpack_buffer *b,int bits){
unsigned long ret;
unsigned long m=mask[bits];
@ -119,14 +119,14 @@ long _oggpack_look(oggpack_buffer *b,int bits){
return(m&ret);
}
long _oggpack_look1(oggpack_buffer *b){
long oggpack_look1(oggpack_buffer *b){
if(b->endbyte>=b->storage)return(-1);
return((b->ptr[0]>>b->endbit)&1);
}
/* Read in bits without advancing the bitptr; bits <= 8 */
/* we never return 'out of bits'; we'll handle it on _adv */
long _oggpack_look_huff(oggpack_buffer *b,int bits){
long oggpack_look_huff(oggpack_buffer *b,int bits){
unsigned long ret;
unsigned long m=mask[bits];
@ -139,14 +139,14 @@ long _oggpack_look_huff(oggpack_buffer *b,int bits){
return(m&ret);
}
void _oggpack_adv(oggpack_buffer *b,int bits){
void oggpack_adv(oggpack_buffer *b,int bits){
bits+=b->endbit;
b->ptr+=bits/8;
b->endbyte+=bits/8;
b->endbit=bits&7;
}
void _oggpack_adv1(oggpack_buffer *b){
void oggpack_adv1(oggpack_buffer *b){
if(++(b->endbit)>7){
b->endbit=0;
b->ptr++;
@ -155,7 +155,7 @@ void _oggpack_adv1(oggpack_buffer *b){
}
/* have to check for overflow now. return -1 on overflow */
int _oggpack_adv_huff(oggpack_buffer *b,int bits){
int oggpack_adv_huff(oggpack_buffer *b,int bits){
if(b->endbyte+(b->endbit+bits-1)/8>=b->storage)return(-1);
bits+=b->endbit;
b->ptr+=bits/8;
@ -165,7 +165,7 @@ int _oggpack_adv_huff(oggpack_buffer *b,int bits){
}
/* bits <= 32 */
long _oggpack_read(oggpack_buffer *b,int bits){
long oggpack_read(oggpack_buffer *b,int bits){
unsigned long ret;
unsigned long m=mask[bits];
@ -200,7 +200,7 @@ long _oggpack_read(oggpack_buffer *b,int bits){
return(ret);
}
long _oggpack_read1(oggpack_buffer *b){
long oggpack_read1(oggpack_buffer *b){
unsigned long ret;
if(b->endbyte>=b->storage){
@ -222,15 +222,15 @@ long _oggpack_read1(oggpack_buffer *b){
return(ret);
}
long _oggpack_bytes(oggpack_buffer *b){
long oggpack_bytes(oggpack_buffer *b){
return(b->endbyte+(b->endbit+7)/8);
}
long _oggpack_bits(oggpack_buffer *b){
long oggpack_bits(oggpack_buffer *b){
return(b->endbyte*8+b->endbit);
}
unsigned char *_oggpack_buffer(oggpack_buffer *b){
unsigned char *oggpack_get_buffer(oggpack_buffer *b){
return(b->buffer);
}
@ -261,35 +261,35 @@ void cliptest(unsigned long *b,int vals,int bits,int *comp,int compsize){
long bytes,i;
unsigned char *buffer;
_oggpack_reset(&o);
oggpack_reset(&o);
for(i=0;i<vals;i++)
_oggpack_write(&o,b[i],bits?bits:ilog(b[i]));
buffer=_oggpack_buffer(&o);
bytes=_oggpack_bytes(&o);
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);
oggpack_readinit(&r,buffer,bytes);
for(i=0;i<vals;i++){
int tbit=bits?bits:ilog(b[i]);
if(_oggpack_look(&r,tbit)==-1)
if(oggpack_look(&r,tbit)==-1)
report("out of data!\n");
if(_oggpack_look(&r,tbit)!=(b[i]&mask[tbit]))
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]))
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]))
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]))
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");
if(oggpack_bytes(&r)!=bytes)report("leftover bytes after read!\n");
}
int main(void){
@ -345,7 +345,7 @@ int main(void){
/* Test read/write together */
/* Later we test against pregenerated bitstreams */
_oggpack_writeinit(&o);
oggpack_writeinit(&o);
fprintf(stderr,"\nSmall preclipped packing: ");
cliptest(testbuffer1,test1size,0,one,onesize);
@ -360,22 +360,22 @@ int main(void){
fprintf(stderr,"ok.");
fprintf(stderr,"\n32 bit preclipped packing: ");
_oggpack_reset(&o);
oggpack_reset(&o);
for(i=0;i<test2size;i++)
_oggpack_write(&o,large[i],32);
buffer=_oggpack_buffer(&o);
bytes=_oggpack_bytes(&o);
_oggpack_readinit(&r,buffer,bytes);
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]);
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);
oggpack_adv(&r,32);
}
if(_oggpack_bytes(&r)!=bytes)report("leftover bytes after read!\n");
if(oggpack_bytes(&r)!=bytes)report("leftover bytes after read!\n");
fprintf(stderr,"ok.");
fprintf(stderr,"\nSmall unclipped packing: ");
@ -391,36 +391,36 @@ int main(void){
fprintf(stderr,"ok.");
fprintf(stderr,"\nTesting read past end: ");
_oggpack_readinit(&r,"\0\0\0\0\0\0\0\0",8);
oggpack_readinit(&r,"\0\0\0\0\0\0\0\0",8);
for(i=0;i<64;i++){
if(_oggpack_read(&r,1)!=0){
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){
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){
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){
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){
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){
if(oggpack_look(&r,32)!=-1 ||
oggpack_look(&r,32)!=-1){
fprintf(stderr,"failed; read past end without -1.\n");
exit(1);
}