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Diffstat (limited to 'media/libtheora/lib/huffman.h')
| -rw-r--r-- | media/libtheora/lib/huffman.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/media/libtheora/lib/huffman.h b/media/libtheora/lib/huffman.h new file mode 100644 index 0000000000..36cf7572e5 --- /dev/null +++ b/media/libtheora/lib/huffman.h @@ -0,0 +1,70 @@ +/******************************************************************** + * * + * 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 |