gecko-dev/media/libtheora/lib/dec/bitpack.h

39 lines
1.8 KiB
C

/********************************************************************
* *
* THIS FILE IS PART OF THE OggTheora 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 OggTheora SOURCE CODE IS (C) COPYRIGHT 1994-2008 *
* by the Xiph.Org Foundation and contributors 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 $
********************************************************************/
#if !defined(_bitpack_H)
# define _bitpack_H (1)
# include <ogg/ogg.h>
void theorapackB_readinit(oggpack_buffer *_b,unsigned char *_buf,int _bytes);
int theorapackB_look1(oggpack_buffer *_b,long *_ret);
void theorapackB_adv1(oggpack_buffer *_b);
/*Here we assume 0<=_bits&&_bits<=32.*/
int theorapackB_read(oggpack_buffer *_b,int _bits,long *_ret);
int theorapackB_read1(oggpack_buffer *_b,long *_ret);
long theorapackB_bytes(oggpack_buffer *_b);
long theorapackB_bits(oggpack_buffer *_b);
unsigned char *theorapackB_get_buffer(oggpack_buffer *_b);
/*These two functions are implemented locally in huffdec.c*/
/*Read in bits without advancing the bitptr.
Here we assume 0<=_bits&&_bits<=32.*/
/*static int theorapackB_look(oggpack_buffer *_b,int _bits,long *_ret);*/
/*static void theorapackB_adv(oggpack_buffer *_b,int _bits);*/
#endif