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158 lines
6.9 KiB
C
158 lines
6.9 KiB
C
/* ***** BEGIN LICENSE BLOCK *****
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* Source last modified: $Id: aactabs.c,v 1.1 2005/02/26 01:47:31 jrecker Exp $
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*
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* Portions Copyright (c) 1995-2005 RealNetworks, Inc. All Rights Reserved.
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*
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* The contents of this file, and the files included with this file,
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* are subject to the current version of the RealNetworks Public
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* Source License (the "RPSL") available at
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* http://www.helixcommunity.org/content/rpsl unless you have licensed
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* the file under the current version of the RealNetworks Community
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* Source License (the "RCSL") available at
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* http://www.helixcommunity.org/content/rcsl, in which case the RCSL
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* will apply. You may also obtain the license terms directly from
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* RealNetworks. You may not use this file except in compliance with
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* the RPSL or, if you have a valid RCSL with RealNetworks applicable
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* to this file, the RCSL. Please see the applicable RPSL or RCSL for
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* the rights, obligations and limitations governing use of the
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* contents of the file.
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*
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* This file is part of the Helix DNA Technology. RealNetworks is the
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* developer of the Original Code and owns the copyrights in the
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* portions it created.
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*
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* This file, and the files included with this file, is distributed
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* and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY
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* KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS
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* ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET
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* ENJOYMENT OR NON-INFRINGEMENT.
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*
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* Technology Compatibility Kit Test Suite(s) Location:
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* http://www.helixcommunity.org/content/tck
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*
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* Contributor(s):
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*
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* ***** END LICENSE BLOCK ***** */
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/**************************************************************************************
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* Fixed-point HE-AAC decoder
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* Jon Recker (jrecker@real.com), Ken Cooke (kenc@real.com)
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* February 2005
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*
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* aactabs.c - platform-independent tables for AAC decoder (global, read-only)
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**************************************************************************************/
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#include "aaccommon.h"
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/* sample rates (table 4.5.1) */
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const int sampRateTab[NUM_SAMPLE_RATES] PROGMEM = {
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96000, 88200, 64000, 48000, 44100, 32000,
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24000, 22050, 16000, 12000, 11025, 8000
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};
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/* max scalefactor band for prediction (main profile only) */
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const int predSFBMax[NUM_SAMPLE_RATES] PROGMEM = {
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33, 33, 38, 40, 40, 40, 41, 41, 37, 37, 37, 34
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};
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/* channel mapping (table 1.6.3.4) (-1 = unknown, so need to determine mapping based on rules in 8.5.1) */
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const int channelMapTab[NUM_DEF_CHAN_MAPS] PROGMEM = {
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-1, 1, 2, 3, 4, 5, 6, 8
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};
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/* number of channels in each element (SCE, CPE, etc.)
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* see AACElementID in aaccommon.h
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*/
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const int elementNumChans[NUM_ELEMENTS] PROGMEM = {
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1, 2, 0, 1, 0, 0, 0, 0
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};
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/* total number of scale factor bands in one window */
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const unsigned int /*char*/ sfBandTotalShort[NUM_SAMPLE_RATES] PROGMEM = {
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12, 12, 12, 14, 14, 14, 15, 15, 15, 15, 15, 15
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};
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const unsigned int /*char*/ sfBandTotalLong[NUM_SAMPLE_RATES] PROGMEM = {
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41, 41, 47, 49, 49, 51, 47, 47, 43, 43, 43, 40
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};
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/* scale factor band tables */
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const int sfBandTabShortOffset[NUM_SAMPLE_RATES] PROGMEM = {0, 0, 0, 13, 13, 13, 28, 28, 44, 44, 44, 60};
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const /*short*/ int sfBandTabShort[76] PROGMEM = {
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/* short block 64, 88, 96 kHz [13] (tables 4.5.24, 4.5.26) */
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0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 92, 128,
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/* short block 32, 44, 48 kHz [15] (table 4.5.15) */
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0, 4, 8, 12, 16, 20, 28, 36, 44, 56, 68, 80, 96, 112, 128,
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/* short block 22, 24 kHz [16] (table 4.5.22) */
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0, 4, 8, 12, 16, 20, 24, 28, 36, 44, 52, 64, 76, 92, 108, 128,
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/* short block 11, 12, 16 kHz [16] (table 4.5.20) */
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0, 4, 8, 12, 16, 20, 24, 28, 32, 40, 48, 60, 72, 88, 108, 128,
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/* short block 8 kHz [16] (table 4.5.18) */
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0, 4, 8, 12, 16, 20, 24, 28, 36, 44, 52, 60, 72, 88, 108, 128
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};
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const int sfBandTabLongOffset[NUM_SAMPLE_RATES] PROGMEM = {0, 0, 42, 90, 90, 140, 192, 192, 240, 240, 240, 284};
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const /*short*/ int sfBandTabLong[325] PROGMEM = {
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/* long block 88, 96 kHz [42] (table 4.5.25) */
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0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52,
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56, 64, 72, 80, 88, 96, 108, 120, 132, 144, 156, 172, 188, 212,
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240, 276, 320, 384, 448, 512, 576, 640, 704, 768, 832, 896, 960, 1024,
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/* long block 64 kHz [48] (table 4.5.13) */
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0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 64,
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72, 80, 88, 100, 112, 124, 140, 156, 172, 192, 216, 240, 268, 304, 344, 384,
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424, 464, 504, 544, 584, 624, 664, 704, 744, 784, 824, 864, 904, 944, 984, 1024,
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/* long block 44, 48 kHz [50] (table 4.5.14) */
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0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 48, 56, 64, 72, 80, 88,
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96, 108, 120, 132, 144, 160, 176, 196, 216, 240, 264, 292, 320, 352, 384, 416, 448,
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480, 512, 544, 576, 608, 640, 672, 704, 736, 768, 800, 832, 864, 896, 928, 1024,
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/* long block 32 kHz [52] (table 4.5.16) */
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0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 48, 56, 64, 72, 80, 88, 96,
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108, 120, 132, 144, 160, 176, 196, 216, 240, 264, 292, 320, 352, 384, 416, 448, 480, 512,
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544, 576, 608, 640, 672, 704, 736, 768, 800, 832, 864, 896, 928, 960, 992, 1024,
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/* long block 22, 24 kHz [48] (table 4.5.21) */
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0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 52, 60, 68, 76,
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84, 92, 100, 108, 116, 124, 136, 148, 160, 172, 188, 204, 220, 240, 260, 284,
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308, 336, 364, 396, 432, 468, 508, 552, 600, 652, 704, 768, 832, 896, 960, 1024,
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/* long block 11, 12, 16 kHz [44] (table 4.5.19) */
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0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 100, 112, 124,
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136, 148, 160, 172, 184, 196, 212, 228, 244, 260, 280, 300, 320, 344, 368,
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396, 424, 456, 492, 532, 572, 616, 664, 716, 772, 832, 896, 960, 1024,
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/* long block 8 kHz [41] (table 4.5.17) */
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0, 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156,
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172, 188, 204, 220, 236, 252, 268, 288, 308, 328, 348, 372, 396, 420,
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448, 476, 508, 544, 580, 620, 664, 712, 764, 820, 880, 944, 1024
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};
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/* TNS max bands (table 4.139) and max order (table 4.138) */
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const int tnsMaxBandsShortOffset[AAC_NUM_PROFILES] PROGMEM = {0, 0, 12};
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const unsigned /*char*/ int tnsMaxBandsShort[2*NUM_SAMPLE_RATES] PROGMEM = {
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9, 9, 10, 14, 14, 14, 14, 14, 14, 14, 14, 14, /* short block, Main/LC */
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7, 7, 7, 6, 6, 6, 7, 7, 8, 8, 8, 7 /* short block, SSR */
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};
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const unsigned /*char*/ int tnsMaxOrderShort[AAC_NUM_PROFILES] PROGMEM = {7, 7, 7};
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const int tnsMaxBandsLongOffset[AAC_NUM_PROFILES] PROGMEM = {0, 0, 12};
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const unsigned int /*char*/ tnsMaxBandsLong[2*NUM_SAMPLE_RATES] PROGMEM = {
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31, 31, 34, 40, 42, 51, 46, 46, 42, 42, 42, 39, /* long block, Main/LC */
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28, 28, 27, 26, 26, 26, 29, 29, 23, 23, 23, 19, /* long block, SSR */
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};
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const unsigned /*char*/ int tnsMaxOrderLong[AAC_NUM_PROFILES] PROGMEM = {20, 12, 12};
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