gecko/media/libtheora/lib/bitpack.h
Matthew Gregan 2a88d989cb Bug 507554 - Update in-tree libtheora to 1.1.0 (Thusnelda) plus post-release fixes from SVN. r=chris.double, rs=roc
--HG--
rename : media/libtheora/lib/dec/apiwrapper.c => media/libtheora/lib/apiwrapper.c
rename : media/libtheora/lib/dec/apiwrapper.h => media/libtheora/lib/apiwrapper.h
rename : media/libtheora/lib/dec/bitpack.c => media/libtheora/lib/bitpack.c
rename : media/libtheora/lib/dec/bitpack.h => media/libtheora/lib/bitpack.h
rename : media/libtheora/lib/dec/dct.h => media/libtheora/lib/dct.h
rename : media/libtheora/lib/dec/decapiwrapper.c => media/libtheora/lib/decapiwrapper.c
rename : media/libtheora/lib/dec/decinfo.c => media/libtheora/lib/decinfo.c
rename : media/libtheora/lib/dec/decint.h => media/libtheora/lib/decint.h
rename : media/libtheora/lib/dec/decode.c => media/libtheora/lib/decode.c
rename : media/libtheora/lib/dec/dequant.c => media/libtheora/lib/dequant.c
rename : media/libtheora/lib/dec/dequant.h => media/libtheora/lib/dequant.h
rename : media/libtheora/lib/dec/fragment.c => media/libtheora/lib/fragment.c
rename : media/libtheora/lib/dec/huffdec.c => media/libtheora/lib/huffdec.c
rename : media/libtheora/lib/dec/huffdec.h => media/libtheora/lib/huffdec.h
rename : media/libtheora/lib/dec/huffman.h => media/libtheora/lib/huffman.h
rename : media/libtheora/lib/dec/idct.c => media/libtheora/lib/idct.c
rename : media/libtheora/lib/dec/info.c => media/libtheora/lib/info.c
rename : media/libtheora/lib/dec/internal.c => media/libtheora/lib/internal.c
rename : media/libtheora/lib/dec/ocintrin.h => media/libtheora/lib/ocintrin.h
rename : media/libtheora/lib/dec/quant.c => media/libtheora/lib/quant.c
rename : media/libtheora/lib/dec/quant.h => media/libtheora/lib/quant.h
rename : media/libtheora/lib/dec/state.c => media/libtheora/lib/state.c
rename : media/libtheora/lib/dec/x86/mmxfrag.c => media/libtheora/lib/x86/mmxfrag.c
rename : media/libtheora/lib/dec/x86/mmxidct.c => media/libtheora/lib/x86/mmxidct.c
rename : media/libtheora/lib/dec/x86/mmxstate.c => media/libtheora/lib/x86/mmxstate.c
rename : media/libtheora/lib/dec/x86/x86int.h => media/libtheora/lib/x86/x86int.h
rename : media/libtheora/lib/dec/x86/x86state.c => media/libtheora/lib/x86/x86state.c
rename : media/libtheora/lib/dec/x86_vc/mmxfrag.c => media/libtheora/lib/x86_vc/mmxfrag.c
rename : media/libtheora/lib/dec/x86_vc/mmxidct.c => media/libtheora/lib/x86_vc/mmxidct.c
rename : media/libtheora/lib/dec/x86_vc/mmxstate.c => media/libtheora/lib/x86_vc/mmxstate.c
rename : media/libtheora/lib/dec/x86_vc/x86int.h => media/libtheora/lib/x86_vc/x86int.h
rename : media/libtheora/lib/dec/x86_vc/x86state.c => media/libtheora/lib/x86_vc/x86state.c
2009-09-28 11:14:21 +13:00

60 lines
2.2 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 1994-2009 *
* 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 <limits.h>
typedef unsigned long oc_pb_window;
typedef struct oc_pack_buf oc_pack_buf;
# define OC_PB_WINDOW_SIZE ((int)sizeof(oc_pb_window)*CHAR_BIT)
/*This is meant to be a large, positive constant that can still be efficiently
loaded as an immediate (on platforms like ARM, for example).
Even relatively modest values like 100 would work fine.*/
# define OC_LOTS_OF_BITS (0x40000000)
struct oc_pack_buf{
oc_pb_window window;
const unsigned char *ptr;
const unsigned char *stop;
int bits;
int eof;
};
void oc_pack_readinit(oc_pack_buf *_b,unsigned char *_buf,long _bytes);
int oc_pack_look1(oc_pack_buf *_b);
void oc_pack_adv1(oc_pack_buf *_b);
/*Here we assume 0<=_bits&&_bits<=32.*/
long oc_pack_read(oc_pack_buf *_b,int _bits);
int oc_pack_read1(oc_pack_buf *_b);
/* returns -1 for read beyond EOF, or the number of whole bytes available */
long oc_pack_bytes_left(oc_pack_buf *_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 oc_pack_look(oc_pack_buf *_b,int _bits);*/
/*static void oc_pack_adv(oc_pack_buf *_b,int _bits);*/
#endif