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