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/********************************************************************
* *
* 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 Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 *
* by the Xiph.Org Foundation and contributors http://www.xiph.org/ *
* *
********************************************************************
function:
last mod: $Id: huffman.h 16503 2009-08-22 18:14:02Z giles $
********************************************************************/
#if !defined(_huffman_H)
# define _hufffman_H (1)
# include "theora/codec.h"
# include "ocintrin.h"
/*The range of valid quantized DCT coefficient values.
VP3 used 511 in the encoder, but the bitstream is capable of 580.*/
#define OC_DCT_VAL_RANGE (580)
#define OC_NDCT_TOKEN_BITS (5)
#define OC_DCT_EOB1_TOKEN (0)
#define OC_DCT_EOB2_TOKEN (1)
#define OC_DCT_EOB3_TOKEN (2)
#define OC_DCT_REPEAT_RUN0_TOKEN (3)
#define OC_DCT_REPEAT_RUN1_TOKEN (4)
#define OC_DCT_REPEAT_RUN2_TOKEN (5)
#define OC_DCT_REPEAT_RUN3_TOKEN (6)
#define OC_DCT_SHORT_ZRL_TOKEN (7)
#define OC_DCT_ZRL_TOKEN (8)
#define OC_ONE_TOKEN (9)
#define OC_MINUS_ONE_TOKEN (10)
#define OC_TWO_TOKEN (11)
#define OC_MINUS_TWO_TOKEN (12)
#define OC_DCT_VAL_CAT2 (13)
#define OC_DCT_VAL_CAT3 (17)
#define OC_DCT_VAL_CAT4 (18)
#define OC_DCT_VAL_CAT5 (19)
#define OC_DCT_VAL_CAT6 (20)
#define OC_DCT_VAL_CAT7 (21)
#define OC_DCT_VAL_CAT8 (22)
#define OC_DCT_RUN_CAT1A (23)
#define OC_DCT_RUN_CAT1B (28)
#define OC_DCT_RUN_CAT1C (29)
#define OC_DCT_RUN_CAT2A (30)
#define OC_DCT_RUN_CAT2B (31)
#define OC_NDCT_EOB_TOKEN_MAX (7)
#define OC_NDCT_ZRL_TOKEN_MAX (9)
#define OC_NDCT_VAL_MAX (23)
#define OC_NDCT_VAL_CAT1_MAX (13)
#define OC_NDCT_VAL_CAT2_MAX (17)
#define OC_NDCT_VAL_CAT2_SIZE (OC_NDCT_VAL_CAT2_MAX-OC_DCT_VAL_CAT2)
#define OC_NDCT_RUN_MAX (32)
#define OC_NDCT_RUN_CAT1A_MAX (28)
extern const unsigned char OC_DCT_TOKEN_EXTRA_BITS[TH_NDCT_TOKENS];
#endif
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