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