| Alexandre Lision | 67916dd | 2014-01-24 13:33:04 -0500 | [diff] [blame^] | 1 | /*********************************************************************** |
| 2 | ** |
| 3 | ** ITU-T G.722.1 (2005-05) - Fixed point implementation for main body and Annex C |
| 4 | ** > Software Release 2.1 (2008-06) |
| 5 | ** (Simple repackaging; no change from 2005-05 Release 2.0 code) |
| 6 | ** |
| 7 | ** © 1999 PictureTel Coporation |
| 8 | ** Andover, MA, USA |
| 9 | ** |
| 10 | ** All rights reserved. |
| 11 | ** |
| 12 | ***********************************************************************/ |
| 13 | |
| 14 | /*********************************************************************** |
| 15 | Filename: tables.h |
| 16 | |
| 17 | Purpose: Contains table definitions used by G.722.1 Annex C |
| 18 | |
| 19 | Design Notes: |
| 20 | |
| 21 | ***********************************************************************/ |
| 22 | |
| 23 | /*********************************************************************** |
| 24 | Include files |
| 25 | ***********************************************************************/ |
| 26 | #define REGION_POWER_TABLE_SIZE 64 |
| 27 | #define NUM_CATEGORIES 8 |
| 28 | #define DCT_LENGTH 320 |
| 29 | #define MAX_DCT_LENGTH 640 |
| 30 | |
| 31 | extern Word16 int_region_standard_deviation_table[REGION_POWER_TABLE_SIZE]; |
| 32 | extern Word16 standard_deviation_inverse_table[REGION_POWER_TABLE_SIZE]; |
| 33 | extern Word16 step_size_inverse_table[NUM_CATEGORIES]; |
| 34 | extern Word16 vector_dimension[NUM_CATEGORIES]; |
| 35 | extern Word16 number_of_vectors[NUM_CATEGORIES]; |
| 36 | /* The last category isn't really coded with scalar quantization. */ |
| 37 | extern Word16 max_bin[NUM_CATEGORIES]; |
| 38 | extern Word16 max_bin_plus_one_inverse[NUM_CATEGORIES]; |
| 39 | extern Word16 int_dead_zone[NUM_CATEGORIES]; |
| 40 | extern Word16 samples_to_rmlt_window[DCT_LENGTH]; |
| 41 | extern Word16 rmlt_to_samples_window[DCT_LENGTH]; |
| 42 | |
| 43 | /* Add next line in Release 1.2 */ |
| 44 | extern Word16 int_dead_zone_low_bits[NUM_CATEGORIES]; |
| 45 | |
| 46 | extern Word16 max_samples_to_rmlt_window[MAX_DCT_LENGTH]; |
| 47 | extern Word16 max_rmlt_to_samples_window[MAX_DCT_LENGTH]; |