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diff --git a/audio_codec/libraac/aactabs.c b/audio_codec/libraac/aactabs.c new file mode 100644 index 0000000..3cade7d --- a/dev/null +++ b/audio_codec/libraac/aactabs.c @@ -0,0 +1,157 @@ +/* ***** BEGIN LICENSE BLOCK ***** + * Source last modified: $Id: aactabs.c,v 1.1 2005/02/26 01:47:31 jrecker Exp $ + * + * Portions Copyright (c) 1995-2005 RealNetworks, Inc. All Rights Reserved. + * + * The contents of this file, and the files included with this file, + * are subject to the current version of the RealNetworks Public + * Source License (the "RPSL") available at + * http://www.helixcommunity.org/content/rpsl unless you have licensed + * the file under the current version of the RealNetworks Community + * Source License (the "RCSL") available at + * http://www.helixcommunity.org/content/rcsl, in which case the RCSL + * will apply. You may also obtain the license terms directly from + * RealNetworks. You may not use this file except in compliance with + * the RPSL or, if you have a valid RCSL with RealNetworks applicable + * to this file, the RCSL. Please see the applicable RPSL or RCSL for + * the rights, obligations and limitations governing use of the + * contents of the file. + * + * This file is part of the Helix DNA Technology. RealNetworks is the + * developer of the Original Code and owns the copyrights in the + * portions it created. + * + * This file, and the files included with this file, is distributed + * and made available on an 'AS IS' basis, WITHOUT WARRANTY OF ANY + * KIND, EITHER EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS + * ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES + * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET + * ENJOYMENT OR NON-INFRINGEMENT. + * + * Technology Compatibility Kit Test Suite(s) Location: + * http://www.helixcommunity.org/content/tck + * + * Contributor(s): + * + * ***** END LICENSE BLOCK ***** */ + +/************************************************************************************** + * Fixed-point HE-AAC decoder + * Jon Recker (jrecker@real.com), Ken Cooke (kenc@real.com) + * February 2005 + * + * aactabs.c - platform-independent tables for AAC decoder (global, read-only) + **************************************************************************************/ + +#include "aaccommon.h" + +/* sample rates (table 4.5.1) */ +const int sampRateTab[NUM_SAMPLE_RATES] = { + 96000, 88200, 64000, 48000, 44100, 32000, + 24000, 22050, 16000, 12000, 11025, 8000 +}; + +/* max scalefactor band for prediction (main profile only) */ +const int predSFBMax[NUM_SAMPLE_RATES] = { + 33, 33, 38, 40, 40, 40, 41, 41, 37, 37, 37, 34 +}; + +/* channel mapping (table 1.6.3.4) (-1 = unknown, so need to determine mapping based on rules in 8.5.1) */ +const int channelMapTab[NUM_DEF_CHAN_MAPS] = { + -1, 1, 2, 3, 4, 5, 6, 8 +}; + +/* number of channels in each element (SCE, CPE, etc.) + * see AACElementID in aaccommon.h + */ +const int elementNumChans[NUM_ELEMENTS] = { + 1, 2, 0, 1, 0, 0, 0, 0 +}; + +/* total number of scale factor bands in one window */ +const unsigned char sfBandTotalShort[NUM_SAMPLE_RATES] = { + 12, 12, 12, 14, 14, 14, 15, 15, 15, 15, 15, 15 +}; + +const unsigned char sfBandTotalLong[NUM_SAMPLE_RATES] = { + 41, 41, 47, 49, 49, 51, 47, 47, 43, 43, 43, 40 +}; + +/* scale factor band tables */ +const int sfBandTabShortOffset[NUM_SAMPLE_RATES] = {0, 0, 0, 13, 13, 13, 28, 28, 44, 44, 44, 60}; + +const short sfBandTabShort[76] = { + /* short block 64, 88, 96 kHz [13] (tables 4.5.24, 4.5.26) */ + 0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 92, 128, + + /* short block 32, 44, 48 kHz [15] (table 4.5.15) */ + 0, 4, 8, 12, 16, 20, 28, 36, 44, 56, 68, 80, 96, 112, 128, + + /* short block 22, 24 kHz [16] (table 4.5.22) */ + 0, 4, 8, 12, 16, 20, 24, 28, 36, 44, 52, 64, 76, 92, 108, 128, + + /* short block 11, 12, 16 kHz [16] (table 4.5.20) */ + 0, 4, 8, 12, 16, 20, 24, 28, 32, 40, 48, 60, 72, 88, 108, 128, + + /* short block 8 kHz [16] (table 4.5.18) */ + 0, 4, 8, 12, 16, 20, 24, 28, 36, 44, 52, 60, 72, 88, 108, 128 +}; + +const int sfBandTabLongOffset[NUM_SAMPLE_RATES] = {0, 0, 42, 90, 90, 140, 192, 192, 240, 240, 240, 284}; + +const short sfBandTabLong[325] = { + /* long block 88, 96 kHz [42] (table 4.5.25) */ + 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, + 56, 64, 72, 80, 88, 96, 108, 120, 132, 144, 156, 172, 188, 212, + 240, 276, 320, 384, 448, 512, 576, 640, 704, 768, 832, 896, 960, 1024, + + /* long block 64 kHz [48] (table 4.5.13) */ + 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 64, + 72, 80, 88, 100, 112, 124, 140, 156, 172, 192, 216, 240, 268, 304, 344, 384, + 424, 464, 504, 544, 584, 624, 664, 704, 744, 784, 824, 864, 904, 944, 984, 1024, + + /* long block 44, 48 kHz [50] (table 4.5.14) */ + 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 48, 56, 64, 72, 80, 88, + 96, 108, 120, 132, 144, 160, 176, 196, 216, 240, 264, 292, 320, 352, 384, 416, 448, + 480, 512, 544, 576, 608, 640, 672, 704, 736, 768, 800, 832, 864, 896, 928, 1024, + + /* long block 32 kHz [52] (table 4.5.16) */ + 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 48, 56, 64, 72, 80, 88, 96, + 108, 120, 132, 144, 160, 176, 196, 216, 240, 264, 292, 320, 352, 384, 416, 448, 480, 512, + 544, 576, 608, 640, 672, 704, 736, 768, 800, 832, 864, 896, 928, 960, 992, 1024, + + /* long block 22, 24 kHz [48] (table 4.5.21) */ + 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 52, 60, 68, 76, + 84, 92, 100, 108, 116, 124, 136, 148, 160, 172, 188, 204, 220, 240, 260, 284, + 308, 336, 364, 396, 432, 468, 508, 552, 600, 652, 704, 768, 832, 896, 960, 1024, + + /* long block 11, 12, 16 kHz [44] (table 4.5.19) */ + 0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 100, 112, 124, + 136, 148, 160, 172, 184, 196, 212, 228, 244, 260, 280, 300, 320, 344, 368, + 396, 424, 456, 492, 532, 572, 616, 664, 716, 772, 832, 896, 960, 1024, + + /* long block 8 kHz [41] (table 4.5.17) */ + 0, 12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, + 172, 188, 204, 220, 236, 252, 268, 288, 308, 328, 348, 372, 396, 420, + 448, 476, 508, 544, 580, 620, 664, 712, 764, 820, 880, 944, 1024 +}; + + +/* TNS max bands (table 4.139) and max order (table 4.138) */ +const int tnsMaxBandsShortOffset[AAC_NUM_PROFILES] = {0, 0, 12}; + +const unsigned char tnsMaxBandsShort[2 * NUM_SAMPLE_RATES] = { + 9, 9, 10, 14, 14, 14, 14, 14, 14, 14, 14, 14, /* short block, Main/LC */ + 7, 7, 7, 6, 6, 6, 7, 7, 8, 8, 8, 7 /* short block, SSR */ +}; + +const unsigned char tnsMaxOrderShort[AAC_NUM_PROFILES] = {7, 7, 7}; + +const int tnsMaxBandsLongOffset[AAC_NUM_PROFILES] = {0, 0, 12}; + +const unsigned char tnsMaxBandsLong[2 * NUM_SAMPLE_RATES] = { + 31, 31, 34, 40, 42, 51, 46, 46, 42, 42, 42, 39, /* long block, Main/LC */ + 28, 28, 27, 26, 26, 26, 29, 29, 23, 23, 23, 19, /* long block, SSR */ +}; + +const unsigned char tnsMaxOrderLong[AAC_NUM_PROFILES] = {20, 12, 12}; |