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huff_def.h

huff_def.h 2.2 KB
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  1. /***********************************************************************
    2. 

  2. **
    3. 

  3. **   ITU-T G.722.1 (2005-05) - Fixed point implementation for main body and Annex C
    4. 

  4. **   > Software Release 2.1 (2008-06)
    5. 

  5. **     (Simple repackaging; no change from 2005-05 Release 2.0 code)
    6. 

  6. **
    7. 

  7. **   © 2004 Polycom, Inc.
    8. 

  8. **
    9. 

  9. **   All rights reserved.
    10. 

  10. **
    11. 

  11. ***********************************************************************/
    12. 

  12. 

  13. #define REGION_POWER_STEPSIZE_DB 3.010299957
    14. 

  14. #define ABS_REGION_POWER_LEVELS  32
    15. 

  15. #define DIFF_REGION_POWER_LEVELS 24
    16. 

  16. 

  17. #define DRP_DIFF_MIN -12
    18. 

  18. #define DRP_DIFF_MAX 11
    19. 

  19. 

  20. #define MAX_NUM_BINS 16
    21. 

  21. #define MAX_VECTOR_INDICES 625
    22. 

  22. #define MAX_VECTOR_DIMENSION 5
    23. 

  23. 

  24. extern Word16  differential_region_power_bits[MAX_NUMBER_OF_REGIONS][DIFF_REGION_POWER_LEVELS];
    25. 

  25. extern UWord16 differential_region_power_codes[MAX_NUMBER_OF_REGIONS][DIFF_REGION_POWER_LEVELS];
    26. 

  26. extern Word16  differential_region_power_decoder_tree[MAX_NUMBER_OF_REGIONS][DIFF_REGION_POWER_LEVELS-1][2];
    27. 

  27. extern Word16  mlt_quant_centroid[NUM_CATEGORIES][MAX_NUM_BINS];
    28. 

  28. extern Word16  expected_bits_table[NUM_CATEGORIES];
    29. 

  29. extern Word16  mlt_sqvh_bitcount_category_0[196];
    30. 

  30. extern UWord16 mlt_sqvh_code_category_0[196];
    31. 

  31. extern Word16  mlt_sqvh_bitcount_category_1[100];
    32. 

  32. extern UWord16 mlt_sqvh_code_category_1[100];
    33. 

  33. extern Word16  mlt_sqvh_bitcount_category_2[49];
    34. 

  34. extern UWord16 mlt_sqvh_code_category_2[49];
    35. 

  35. extern Word16  mlt_sqvh_bitcount_category_3[625];
    36. 

  36. extern UWord16 mlt_sqvh_code_category_3[625];
    37. 

  37. extern Word16  mlt_sqvh_bitcount_category_4[256];
    38. 

  38. extern UWord16 mlt_sqvh_code_category_4[256];
    39. 

  39. extern Word16  mlt_sqvh_bitcount_category_5[243];
    40. 

  40. extern UWord16 mlt_sqvh_code_category_5[243];
    41. 

  41. extern Word16  mlt_sqvh_bitcount_category_6[32];
    42. 

  42. extern UWord16 mlt_sqvh_code_category_6[32];
    43. 

  43. extern Word16  *table_of_bitcount_tables[NUM_CATEGORIES-1];
    44. 

  44. extern UWord16 *table_of_code_tables[NUM_CATEGORIES-1];
    45. 

  45. extern Word16  mlt_decoder_tree_category_0[180][2];
    46. 

  46. extern Word16  mlt_decoder_tree_category_1[93][2];
    47. 

  47. extern Word16  mlt_decoder_tree_category_2[47][2];
    48. 

  48. extern Word16  mlt_decoder_tree_category_3[519][2];
    49. 

  49. extern Word16  mlt_decoder_tree_category_4[208][2];
    50. 

  50. extern Word16  mlt_decoder_tree_category_5[191][2];
    51. 

  51. extern Word16  mlt_decoder_tree_category_6[31][2];
    52. 

  52. extern Word16  *table_of_decoder_tables[NUM_CATEGORIES-1];
    53. 

  53.