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author | Michael Sevakis <jethead71@rockbox.org> | 2006-08-28 22:38:41 +0000 |
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committer | Michael Sevakis <jethead71@rockbox.org> | 2006-08-28 22:38:41 +0000 |
commit | 4fc717a4c19a1fe0349977d7b9c86561c5a5cf2d (patch) | |
tree | eb6113c7491072f7b5136e24775737764e2cdede /apps/codecs/mp3_enc.c | |
parent | 65c2c58b3aa26164bd919665e4d710efa2fa7c79 (diff) | |
download | rockbox-4fc717a4c19a1fe0349977d7b9c86561c5a5cf2d.tar.gz rockbox-4fc717a4c19a1fe0349977d7b9c86561c5a5cf2d.zip |
Added FS#2939 Encoder Codec Interface + Codecs by Antonius Hellmann with additional FM Recording support and my modifications
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@10789 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'apps/codecs/mp3_enc.c')
-rw-r--r-- | apps/codecs/mp3_enc.c | 2860 |
1 files changed, 2860 insertions, 0 deletions
diff --git a/apps/codecs/mp3_enc.c b/apps/codecs/mp3_enc.c new file mode 100644 index 0000000000..1cd84988aa --- /dev/null +++ b/apps/codecs/mp3_enc.c @@ -0,0 +1,2860 @@ +/*************************************************************************** + * __________ __ ___. + * Open \______ \ ____ ____ | | _\_ |__ _______ ___ + * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ / + * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < < + * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \ + * \/ \/ \/ \/ \/ + * $Id$ + * + * Copyright (C) 2006 Antonius Hellmann + * + * All files in this archive are subject to the GNU General Public License. + * See the file COPYING in the source tree root for full license agreement. + * + * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY + * KIND, either express or implied. + * + ****************************************************************************/ + +// Shine is an MP3 encoder +// Copyright (C) 1999-2000 Gabriel Bouvigne +// +// This library is free software; you can redistribute it and/or +// modify it under the terms of the GNU Library General Public +// License as published by the Free Software Foundation; either +// version 2 of the License, or (at your option) any later version. +// +// This library is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +// Library General Public License for more details. + +#include "codeclib.h" + +#ifndef SIMULATOR + +CODEC_HEADER + +#define SAMP_PER_FRAME 1152 +#define SAMP_PER_FRAME2 576 +#define HAN_SIZE 512 +#define SBLIMIT 32 +#define WAVE_RIFF_PCM 0 +#define MAX_CHANNELS 2 +#define MAX_GRANULES 2 +#define HTN 34 + +typedef unsigned long uint32; +typedef unsigned short uint16; +typedef unsigned char uint8; + +enum e_byte_order { order_unknown, order_bigEndian, order_littleEndian }; + +#define memcpy ci->memcpy +#define memset ci->memset + +typedef struct { + int type; /* 0=(22.05,24,16kHz) 1=(44.1,48,32kHz) */ + int mode; /* 0=stereo, 1=jstereo, 2=dual, 3=mono */ + int bitrate; + int padding; + long bits_per_frame; + long bitrate_index; + int smprate_index; +} mpeg_t; + +/* Side information */ +typedef struct { + unsigned part2_3_length; + unsigned big_values; + int count1; + unsigned global_gain; + unsigned table_select[4]; + unsigned region0_count; + unsigned region1_count; + unsigned address1; + unsigned address2; + unsigned address3; + long quantizerStepSize; +} side_info_t; + +typedef struct { + enum e_byte_order byte_order; + side_info_t cod_info[2][2]; + long frac_per_frame; + long byte_per_frame; + long slot_lag; + int sideinfo_len; + int mean_bits; + int channels; + long samplerate; + mpeg_t mpg; +} config_t; + +typedef struct { + int bitpos; /* current bitpos for writing */ + uint32 bbuf[263]; +} BF_Data; + +struct huffcodetab { + int xlen; /*max. x-index+ */ + int ylen; /*max. y-index+ */ + int linbits; /*number of linbits */ + int linmax; /*max number stored in linbits */ + const uint16 *table; /*pointer to array[xlen][ylen] */ + const uint8 *hlen; /*pointer to array[xlen][ylen] */ +}; + +/* !!!!!!!! start of IRAM area: do not insert before x_int1 array !!!!!!!!! */ +short x_int0 [HAN_SIZE] IBSS_ATTR; // 1024 Bytes +int mdct_freq [2][2][SAMP_PER_FRAME2] IBSS_ATTR; // 9216 Bytes +short x_int1 [HAN_SIZE] IBSS_ATTR; // 1024 Bytes +/* !!!!!!!!!!!!!!!!!! here you may insert other data !!!!!!!!!!!!!!!!!!!!!! */ +uint8 int2idx [5000] IBSS_ATTR; // 5000 Bytes +uint16 enc_data [2][2][SAMP_PER_FRAME2] IBSS_ATTR; // 4608 Bytes +short y_int [64] IBSS_ATTR; // 256 Bytes +int scalefac [23] IBSS_ATTR; // 92 Bytes +int mdct_in [36] IBSS_ATTR; // 144 Bytes +int sb_sample [2][3][18][SBLIMIT] IBSS_ATTR; // 13824 Bytes +BF_Data CodedData IBSS_ATTR; // 1040 Bytes +int ca_int [8] IBSS_ATTR; // 32 Bytes +int cs_int [8] IBSS_ATTR; // 32 Bytes +int win_int [18][36] IBSS_ATTR; // 2592 Bytes +short filter_int [SBLIMIT][64] IBSS_ATTR; // 8192 Bytes +short enwindow_int[512] IBSS_ATTR; // 1024 Bytes +uint8 ht_count1 [2][2][16] IBSS_ATTR; // 64 Bytes +uint16 t1HB [ 4] IBSS_ATTR; // Bytes +uint16 t2HB [ 9] IBSS_ATTR; // Bytes +uint16 t3HB [ 9] IBSS_ATTR; // Bytes +uint16 t5HB [ 16] IBSS_ATTR; // Bytes +uint16 t6HB [ 16] IBSS_ATTR; // Bytes +uint16 t7HB [ 36] IBSS_ATTR; // Bytes +uint16 t8HB [ 36] IBSS_ATTR; // Bytes +uint16 t9HB [ 36] IBSS_ATTR; // Bytes +uint16 t10HB [ 64] IBSS_ATTR; // Bytes +uint16 t11HB [ 64] IBSS_ATTR; // Bytes +uint16 t12HB [ 64] IBSS_ATTR; // Bytes +uint16 t13HB [256] IBSS_ATTR; // Bytes +uint16 t15HB [256] IBSS_ATTR; // Bytes +uint16 t16HB [256] IBSS_ATTR; // Bytes +uint16 t24HB [256] IBSS_ATTR; // Bytes +uint8 t1l [ 4] IBSS_ATTR; // Bytes +uint8 t2l [ 9] IBSS_ATTR; // Bytes +uint8 t3l [ 9] IBSS_ATTR; // Bytes +uint8 t5l [ 16] IBSS_ATTR; // Bytes +uint8 t6l [ 16] IBSS_ATTR; // Bytes +uint8 t7l [ 36] IBSS_ATTR; // Bytes +uint8 t8l [ 36] IBSS_ATTR; // Bytes +uint8 t9l [ 36] IBSS_ATTR; // Bytes +uint8 t10l [ 64] IBSS_ATTR; // Bytes +uint8 t11l [ 64] IBSS_ATTR; // Bytes +uint8 t12l [ 64] IBSS_ATTR; // Bytes +uint8 t13l [256] IBSS_ATTR; // Bytes +uint8 t15l [256] IBSS_ATTR; // Bytes +uint8 t16l [256] IBSS_ATTR; // Bytes +uint8 t24l [256] IBSS_ATTR; // Bytes +struct huffcodetab ht [HTN] IBSS_ATTR; // Bytes + +static struct codec_api *ci; +static int enc_channels; +static short *x_int[2]; +static config_t cfg; + +static const uint8 ht_count1_const[2][2][16] = +{ { { 1, 5, 4, 5, 6, 5,4,4,7,3,6,0,7,2,3, 1 }, /* table0 */ + { 1, 5, 5, 7, 5, 8,7,9,5,7,7,9,7,9,9,10 } }, /* hleng0 */ + { {15,14,13,12,11,10,9,8,7,6,5,4,3,2,1, 0 }, /* table1 */ + { 4, 5, 5, 6, 5, 6,6,7,5,6,6,7,6,7,7, 8 } } }; /* hleng1 */ + +static const uint16 t1HB_const[4] = {1,1,1,0}; +static const uint16 t2HB_const[9] = {1,2,1,3,1,1,3,2,0}; +static const uint16 t3HB_const[9] = {3,2,1,1,1,1,3,2,0}; +static const uint16 t5HB_const[16] = {1,2,6,5,3,1,4,4,7,5,7,1,6,1,1,0}; +static const uint16 t6HB_const[16] = {7,3,5,1,6,2,3,2,5,4,4,1,3,3,2,0}; +static const uint16 t7HB_const[36] = {1,2,10,19,16,10,3,3,7,10,5,3,11,4,13,17,8,4,12,11,18,15,11,2,7,6,9,14,3,1,6,4,5,3,2,0}; +static const uint16 t8HB_const[36] = {3,4,6,18,12,5,5,1,2,16,9,3,7,3,5,14,7,3,19,17,15,13,10,4,13,5,8,11,5,1,12,4,4,1,1,0}; +static const uint16 t9HB_const[36] = {7,5,9,14,15,7,6,4,5,5,6,7,7,6,8,8,8,5,15,6,9,10,5,1,11,7,9,6,4,1,14,4,6,2,6,0}; +static const uint16 t10HB_const[64] = {1,2,10,23,35,30,12,17,3,3,8,12,18,21,12,7,11,9,15,21,32,40,19,6,14,13,22,34,46,23,18, + 7,20,19,33,47,27,22,9,3,31,22,41,26,21,20,5,3,14,13,10,11,16,6,5,1,9,8,7,8,4 ,4,2,0}; +static const uint16 t11HB_const[64] = {3,4,10,24,34,33,21,15,5,3,4,10,32,17,11,10,11,7,13,18,30,31,20,5,25,11,19,59,27,18,12, + 5,35,33,31,58,30,16,7,5,28,26,32,19,17,15,8,14,14,12,9,13,14,9,4,1,11,4,6,6,6,3,2,0}; +static const uint16 t12HB_const[64] = {9,6,16,33,41,39,38,26,7,5,6,9,23,16,26,11,17,7,11,14,21,30,10,7,17,10,15,12,18,28,14, + 5,32,13,22,19,18,16,9,5,40,17,31,29,17,13,4,2,27,12,11,15,10,7,4,1,27,12,8,12,6,3,1,0}; +static const uint16 t13HB_const[256] = {1,5,14,21,34,51,46,71,42,52,68,52,67,44,43,19,3,4,12,19,31,26,44,33,31,24,32, + 24,31,35,22,14,15,13,23,36,59,49,77,65,29,40,30,40,27,33,42,16,22,20,37,61,56, + 79,73,64,43,76,56,37,26,31,25,14,35,16,60,57,97,75,114,91,54,73,55,41,48,53, + 23,24,58,27,50,96,76,70,93,84,77,58,79,29,74,49,41,17,47,45,78,74,115,94,90, + 79,69,83,71,50,59,38,36,15,72,34,56,95,92,85,91,90,86,73,77,65,51,44,43,42,43, + 20,30,44,55,78,72,87,78,61,46,54,37,30,20,16,53,25,41,37,44,59,54,81,66,76,57, + 54,37,18,39,11,35,33,31,57,42,82,72,80,47,58,55,21,22,26,38,22,53,25,23,38,70, + 60,51,36,55,26,34,23,27,14,9,7,34,32,28,39,49,75,30,52,48,40,52,28,18,17,9,5, + 45,21,34,64,56,50,49,45,31,19,12,15,10,7,6,3,48,23,20,39,36,35,53,21,16,23,13, + 10,6,1,4,2,16,15,17,27,25,20,29,11,17,12,16,8,1,1,0,1}; +static const uint16 t15HB_const[256] = {7,12,18,53,47,76,124,108,89,123,108,119,107,81,122,63,13,5,16,27,46,36,61,51, + 42,70,52,83,65,41,59,36,19,17,15,24,41,34,59,48,40,64,50,78,62,80,56,33,29,28, + 25,43,39,63,55,93,76,59,93,72,54,75,50,29,52,22,42,40,67,57,95,79,72,57,89,69, + 49,66,46,27,77,37,35,66,58,52,91,74,62,48,79,63,90,62,40,38,125,32,60,56,50, + 92,78,65,55,87,71,51,73,51,70,30,109,53,49,94,88,75,66,122,91,73,56,42,64,44, + 21,25,90,43,41,77,73,63,56,92,77,66,47,67,48,53,36,20,71,34,67,60,58,49,88,76, + 67,106,71,54,38,39,23,15,109,53,51,47,90,82,58,57,48,72,57,41,23,27,62,9,86, + 42,40,37,70,64,52,43,70,55,42,25,29,18,11,11,118,68,30,55,50,46,74,65,49,39, + 24,16,22,13,14,7,91,44,39,38,34,63,52,45,31,52,28,19,14,8,9,3,123,60,58,53,47, + 43,32,22,37,24,17,12,15,10,2,1,71,37,34,30,28,20,17,26,21,16,10,6,8,6,2,0}; +static const uint16 t16HB_const[256] = {1,5,14,44,74,63,110,93,172,149,138,242,225,195,376,17,3,4,12,20,35,62,53,47, + 83,75,68,119,201,107,207,9,15,13,23,38,67,58,103,90,161,72,127,117,110,209, + 206,16,45,21,39,69,64,114,99,87,158,140,252,212,199,387,365,26,75,36,68,65, + 115,101,179,164,155,264,246,226,395,382,362,9,66,30,59,56,102,185,173,265,142, + 253,232,400,388,378,445,16,111,54,52,100,184,178,160,133,257,244,228,217,385, + 366,715,10,98,48,91,88,165,157,148,261,248,407,397,372,380,889,884,8,85,84,81, + 159,156,143,260,249,427,401,392,383,727,713,708,7,154,76,73,141,131,256,245, + 426,406,394,384,735,359,710,352,11,139,129,67,125,247,233,229,219,393,743,737, + 720,885,882,439,4,243,120,118,115,227,223,396,746,742,736,721,712,706,223,436, + 6,202,224,222,218,216,389,386,381,364,888,443,707,440,437,1728,4,747,211,210, + 208,370,379,734,723,714,1735,883,877,876,3459,865,2,377,369,102,187,726,722, + 358,711,709,866,1734,871,3458,870,434,0,12,10,7,11,10,17,11,9,13,12,10,7,5,3,1,3}; +static const uint16 t24HB_const[256] = {15,13,46,80,146,262,248,434,426,669,653,649,621,517,1032,88,14,12,21,38,71, + 130,122,216,209,198,327,345,319,297,279,42,47,22,41,74,68,128,120,221,207,194, + 182,340,315,295,541,18,81,39,75,70,134,125,116,220,204,190,178,325,311,293, + 271,16,147,72,69,135,127,118,112,210,200,188,352,323,306,285,540,14,263,66, + 129,126,119,114,214,202,192,180,341,317,301,281,262,12,249,123,121,117,113, + 215,206,195,185,347,330,308,291,272,520,10,435,115,111,109,211,203,196,187, + 353,332,313,298,283,531,381,17,427,212,208,205,201,193,186,177,169,320,303, + 286,268,514,377,16,335,199,197,191,189,181,174,333,321,305,289,275,521,379, + 371,11,668,184,183,179,175,344,331,314,304,290,277,530,383,373,366,10,652,346, + 171,168,164,318,309,299,287,276,263,513,375,368,362,6,648,322,316,312,307,302, + 292,284,269,261,512,376,370,364,359,4,620,300,296,294,288,282,273,266,515,380, + 374,369,365,361,357,2,1033,280,278,274,267,264,259,382,378,372,367,363,360, + 358,356,0,43,20,19,17,15,13,11,9,7,6,4,7,5,3,1,3}; + +static const uint8 t1l_const[4] = {1,3,2,3}; +static const uint8 t2l_const[9] = {1,3,6,3,3,5,5,5,6}; +static const uint8 t3l_const[9] = {2,2,6,3,2,5,5,5,6}; +static const uint8 t5l_const[16] = {1,3,6,7,3,3,6,7,6,6,7,8,7,6,7,8}; +static const uint8 t6l_const[16] = {3,3,5,7,3,2,4,5,4,4,5,6,6,5,6,7}; +static const uint8 t7l_const[36] = {1,3,6,8,8,9,3,4,6,7,7,8,6,5,7,8,8,9,7,7,8,9,9,9,7,7,8,9,9,10,8,8,9,10,10,10}; +static const uint8 t8l_const[36] = {2,3,6,8,8,9,3,2,4,8,8,8,6,4,6,8,8,9,8,8,8,9,9,10,8,7,8,9,10,10,9,8,9,9,11,11}; +static const uint8 t9l_const[36] = {3,3,5,6,8,9,3,3,4,5,6,8,4,4,5,6,7,8,6,5,6,7,7,8,7,6,7,7,8,9,8,7,8,8,9,9}; +static const uint8 t10l_const[64] = {1,3,6,8,9,9,9,10,3,4,6,7,8,9,8,8,6,6,7,8,9,10,9,9,7,7,8,9,10,10,9,10,8,8,9,10, + 10,10,10,10,9,9,10,10,11,11,10,11,8,8,9,10,10,10,11,11,9,8,9,10,10,11,11,11}; +static const uint8 t11l_const[64] = {2,3,5,7,8,9,8,9,3,3,4,6,8,8,7,8,5,5,6,7,8,9,8,8,7,6,7,9,8,10,8,9,8,8,8,9,9,10, + 9,10,8,8,9,10,10,11,10,11,8,7,7,8,9,10,10,10,8,7,8,9,10,10,10,10}; +static const uint8 t12l_const[64] = {4,3,5,7,8,9,9,9,3,3,4,5,7,7,8,8,5,4,5,6,7,8,7,8,6,5,6,6,7,8,8,8,7,6,7,7,8, + 8,8,9,8,7,8,8,8,9,8,9,8,7,7,8,8,9,9,10,9,8,8,9,9,9,9,10}; +static const uint8 t13l_const[256] = {1,4,6,7,8,9,9,10,9,10,11,11,12,12,13,13,3,4,6,7,8,8,9,9,9,9,10,10,11,12,12,12, + 6,6,7,8,9,9,10,10,9,10,10,11,11,12,13,13,7,7,8,9,9,10,10,10,10,11,11,11,11,12, + 13,13,8,7,9,9,10,10,11,11,10,11,11,12,12,13,13,14,9,8,9,10,10,10,11,11,11,11, + 12,11,13,13,14,14,9,9,10,10,11,11,11,11,11,12,12,12,13,13,14,14,10,9,10,11,11, + 11,12,12,12,12,13,13,13,14,16,16,9,8,9,10,10,11,11,12,12,12,12,13,13,14,15,15, + 10,9,10,10,11,11,11,13,12,13,13,14,14,14,16,15,10,10,10,11,11,12,12,13,12,13, + 14,13,14,15,16,17,11,10,10,11,12,12,12,12,13,13,13,14,15,15,15,16,11,11,11,12, + 12,13,12,13,14,14,15,15,15,16,16,16,12,11,12,13,13,13,14,14,14,14,14,15,16,15, + 16,16,13,12,12,13,13,13,15,14,14,17,15,15,15,17,16,16,12,12,13,14,14,14,15,14, + 15,15,16,16,19,18,19,16}; +static const uint8 t15l_const[256] = {3,4,5,7,7,8,9,9,9,10,10,11,11,11,12,13,4,3,5,6,7,7,8,8,8,9,9,10,10,10,11,11,5, + 5,5,6,7,7,8,8,8,9,9,10,10,11,11,11,6,6,6,7,7,8,8,9,9,9,10,10,10,11,11,11,7,6,7, + 7,8,8,9,9,9,9,10,10,10,11,11,11,8,7,7,8,8,8,9,9,9,9,10,10,11,11,11,12,9,7,8,8, + 8,9,9,9,9,10,10,10,11,11,12,12,9,8,8,9,9,9,9,10,10,10,10,10,11,11,11,12,9,8,8, + 9,9,9,9,10,10,10,10,11,11,12,12,12,9,8,9,9,9,9,10,10,10,11,11,11,11,12,12,12,10, + 9,9,9,10,10,10,10,10,11,11,11,11,12,13,12,10,9,9,9,10,10,10,10,11,11,11,11,12, + 12,12,13,11,10,9,10,10,10,11,11,11,11,11,11,12,12,13,13,11,10,10,10,10,11,11,11, + 11,12,12,12,12,12,13,13,12,11,11,11,11,11,11,11,12,12,12,12,13,13,12,13,12,11, + 11,11,11,11,11,12,12,12,12,12,13,13,13,13}; +static const uint8 t16l_const[256] = {1,4,6,8,9,9,10,10,11,11,11,12,12,12,13,9,3,4,6,7,8,9,9,9,10,10,10,11,12,11,12, + 8,6,6,7,8,9,9,10,10,11,10,11,11,11,12,12,9,8,7,8,9,9,10,10,10,11,11,12,12,12, + 13,13,10,9,8,9,9,10,10,11,11,11,12,12,12,13,13,13,9,9,8,9,9,10,11,11,12,11,12, + 12,13,13,13,14,10,10,9,9,10,11,11,11,11,12,12,12,12,13,13,14,10,10,9,10,10,11, + 11,11,12,12,13,13,13,13,15,15,10,10,10,10,11,11,11,12,12,13,13,13,13,14,14,14, + 10,11,10,10,11,11,12,12,13,13,13,13,14,13,14,13,11,11,11,10,11,12,12,12,12,13, + 14,14,14,15,15,14,10,12,11,11,11,12,12,13,14,14,14,14,14,14,13,14,11,12,12,12, + 12,12,13,13,13,13,15,14,14,14,14,16,11,14,12,12,12,13,13,14,14,14,16,15,15,15, + 17,15,11,13,13,11,12,14,14,13,14,14,15,16,15,17,15,14,11,9,8,8,9,9,10,10,10,11, + 11,11,11,11,11,11,8}; +static const uint8 t24l_const[256] = {4,4,6,7,8,9,9,10,10,11,11,11,11,11,12,9,4,4,5,6,7,8,8,9,9,9,10,10,10,10,10,8,6, + 5,6,7,7,8,8,9,9,9,9,10,10,10,11,7,7,6,7,7,8,8,8,9,9,9,9,10,10,10,10,7,8,7,7,8, + 8,8,8,9,9,9,10,10,10,10,11,7,9,7,8,8,8,8,9,9,9,9,10,10,10,10,10,7,9,8,8,8,8,9, + 9,9,9,10,10,10,10,10,11,7,10,8,8,8,9,9,9,9,10,10,10,10,10,11,11,8,10,9,9,9,9,9, + 9,9,9,10,10,10,10,11,11,8,10,9,9,9,9,9,9,10,10,10,10,10,11,11,11,8,11,9,9,9,9, + 10,10,10,10,10,10,11,11,11,11,8,11,10,9,9,9,10,10,10,10,10,10,11,11,11,11,8,11, + 10,10,10,10,10,10,10,10,10,11,11,11,11,11,8,11,10,10,10,10,10,10,10,11,11,11,11, + 11,11,11,8,12,10,10,10,10,10,10,11,11,11,11,11,11,11,11,8,8,7,7,7,7,7,7,7,7,7, + 7,8,8,8,8,4}; + +static const struct huffcodetab ht_const[HTN] = +{ +{ 0, 0, 0, 0, NULL, NULL}, +{ 2, 2, 0, 0, t1HB, t1l}, +{ 3, 3, 0, 0, t2HB, t2l}, +{ 3, 3, 0, 0, t3HB, t3l}, +{ 0, 0, 0, 0, NULL, NULL},// Apparently not used +{ 4, 4, 0, 0, t5HB, t5l}, +{ 4, 4, 0, 0, t6HB, t6l}, +{ 6, 6, 0, 0, t7HB, t7l}, +{ 6, 6, 0, 0, t8HB, t8l}, +{ 6, 6, 0, 0, t9HB, t9l}, +{ 8, 8, 0, 0,t10HB, t10l}, +{ 8, 8, 0, 0,t11HB, t11l}, +{ 8, 8, 0, 0,t12HB, t12l}, +{16,16, 0, 0,t13HB, t13l}, +{ 0, 0, 0, 0, NULL, NULL},// Apparently not used +{16,16, 0, 0,t15HB, t15l}, +{16,16, 1, 1,t16HB, t16l}, +{16,16, 2, 3,t16HB, t16l}, +{16,16, 3, 7,t16HB, t16l}, +{16,16, 4, 15,t16HB, t16l}, +{16,16, 6, 63,t16HB, t16l}, +{16,16, 8, 255,t16HB, t16l}, +{16,16,10,1023,t16HB, t16l}, +{16,16,13,8191,t16HB, t16l}, +{16,16, 4, 15,t24HB, t24l}, +{16,16, 5, 31,t24HB, t24l}, +{16,16, 6, 63,t24HB, t24l}, +{16,16, 7, 127,t24HB, t24l}, +{16,16, 8, 255,t24HB, t24l}, +{16,16, 9, 511,t24HB, t24l}, +{16,16,11,2047,t24HB, t24l}, +{16,16,13,8191,t24HB, t24l} }; + +static const struct +{ + unsigned region0_count; + unsigned region1_count; +} subdv_table[23] = +{ {0, 0}, /* 0 bands */ + {0, 0}, /* 1 bands */ + {0, 0}, /* 2 bands */ + {0, 0}, /* 3 bands */ + {0, 0}, /* 4 bands */ + {0, 1}, /* 5 bands */ + {1, 1}, /* 6 bands */ + {1, 1}, /* 7 bands */ + {1, 2}, /* 8 bands */ + {2, 2}, /* 9 bands */ + {2, 3}, /* 10 bands */ + {2, 3}, /* 11 bands */ + {3, 4}, /* 12 bands */ + {3, 4}, /* 13 bands */ + {3, 4}, /* 14 bands */ + {4, 5}, /* 15 bands */ + {4, 5}, /* 16 bands */ + {4, 6}, /* 17 bands */ + {5, 6}, /* 18 bands */ + {5, 6}, /* 19 bands */ + {5, 7}, /* 20 bands */ + {6, 7}, /* 21 bands */ + {6, 7}, /* 22 bands */ +}; + +/* This is table B.9: coefficients for aliasing reduction */ +static const int ca_int_const[8] = {0xffffbe25,0xffffc39e,0xffffd7e3,0xffffe8b7,0xfffff3e5,0xfffffac2,0xfffffe2f,0xffffff87}; +static const int cs_int_const[8] = {0x00006dc2,0x000070dd,0x0000798d,0x00007ddd,0x00007f6d,0x00007fe4,0x00007ffd,0x00008000}; +static const int win_int_const[18][36] = { +{ 0x0000006b,0x00000121,0x000001a7,0x000001f9,0x00000215,0x000001f9,0x000001a7,0x00000121,0x0000006b,0xffffff8b,0xfffffe87,0xfffffd68,0xfffffc35,0xfffffaf9,0xfffff9bd,0xfffff88b,0xfffff76b,0xfffff667,0xfffff587,0xfffff4d1,0xfffff44b,0xfffff3f8,0xfffff3dd,0xfffff3f8,0xfffff44b,0xfffff4d1,0xfffff587,0xfffff667,0xfffff76b,0xfffff88b,0xfffff9bd,0xfffffaf9,0xfffffc35,0xfffffd68,0xfffffe87,0xffffff8b,}, +{ 0xffffff83,0xfffffe49,0xfffffcf3,0xfffffbc3,0xfffffaf9,0xfffffacb,0xfffffb5a,0xfffffcb0,0xfffffebf,0x0000015e,0x00000451,0x0000074d,0x00000a02,0x00000c23,0x00000d72,0x00000dc4,0x00000d06,0x00000b45,0x000008a6,0x00000565,0x000001cf,0xfffffe3b,0xfffffaf9,0xfffff853,0xfffff67c,0xfffff594,0xfffff59b,0xfffff67a,0xfffff801,0xfffff9f1,0xfffffc01,0xfffffdeb,0xffffff72,0x00000066,0x000000b5,0x00000060,}, +{ 0xffffffab,0xffffffc2,0x000000ec,0x000002e3,0x00000507,0x0000068f,0x000006c7,0x00000545,0x00000214,0xfffffdbc,0xfffff922,0xfffff55d,0xfffff366,0xfffff3dd,0xfffff6d7,0xfffffbd4,0x000001d7,0x000007a2,0x00000bfb,0x00000dfa,0x00000d3e,0x00000a00,0x00000507,0xffffff74,0xfffffa77,0xfffff70d,0xfffff5c4,0xfffff69f,0xfffff922,0xfffffc79,0xffffffb7,0x00000215,0x00000327,0x000002ef,0x000001d7,0x00000085,}, +{ 0x0000008c,0x000001d7,0x00000244,0x000000ec,0xfffffdeb,0xfffffa77,0xfffff85e,0xfffff922,0xfffffd1d,0x00000327,0x000008f3,0x00000bfb,0x00000aa3,0x00000507,0xfffffd11,0xfffff5c4,0xfffff206,0xfffff366,0xfffff971,0x000001d7,0x00000961,0x00000d3e,0x00000c23,0x000006c7,0xffffff7b,0xfffff922,0xfffff600,0xfffff6d7,0xfffffabb,0xffffffab,0x00000387,0x00000507,0x0000042c,0x00000214,0x0000003e,0xffffffb7,}, +{ 0x0000003c,0xffffff4b,0xfffffd28,0xfffffc0d,0xfffffdeb,0x00000283,0x0000070f,0x000007ff,0x000003ad,0xfffffbfd,0xfffff594,0xfffff4ec,0xfffffb2d,0x00000507,0x00000c88,0x00000cd4,0x00000565,0xfffffa91,0xfffff2e0,0xfffff2fa,0xfffffab0,0x00000530,0x00000c23,0x00000ba7,0x00000497,0xfffffbaf,0xfffff650,0xfffff720,0xfffffcb0,0x000002ec,0x00000611,0x00000507,0x000001a2,0xfffffed3,0xfffffe49,0xffffff6e,}, +{ 0xffffff69,0xfffffe87,0x00000022,0x0000039b,0x00000507,0x0000016b,0xfffffad7,0xfffff76b,0xfffffb91,0x000004d7,0x00000b2f,0x0000081a,0xfffffd46,0xfffff3dd,0xfffff490,0xffffff65,0x00000b2f,0x00000d8d,0x00000445,0xfffff76b,0xfffff221,0xfffff8b7,0x00000507,0x00000c50,0x000008d7,0xfffffe87,0xfffff6b3,0xfffff77b,0xfffffedf,0x000005a2,0x00000669,0x00000215,0xfffffdb4,0xfffffced,0xfffffedf,0x0000002f,}, +{ 0xffffffde,0x00000179,0x000002ba,0xffffffd1,0xfffffaf9,0xfffffb29,0x0000024c,0x00000895,0x00000529,0xfffffa5e,0xfffff4d1,0xfffffc65,0x0000094d,0x00000c23,0x00000097,0xfffff3b0,0xfffff4d1,0x00000313,0x00000ddf,0x00000895,0xfffff997,0xfffff273,0xfffffaf9,0x00000885,0x00000b70,0x00000179,0xfffff729,0xfffff7e6,0x00000121,0x00000749,0x0000046f,0xfffffdeb,0xfffffbbb,0xfffffe95,0x00000121,0x0000009b,}, +{ 0x0000009d,0x000000b5,0xfffffd8f,0xfffffc9c,0x00000215,0x00000682,0x000000ff,0xfffff801,0xfffffa27,0x00000662,0x00000a6c,0xfffffe70,0xfffff37f,0xfffffaf9,0x00000ac2,0x00000b04,0xfffffa9b,0xfffff1ea,0xfffffe26,0x00000d06,0x00000873,0xfffff7bf,0xfffff3dd,0x000001a5,0x00000be4,0x00000451,0xfffff7af,0xfffff861,0x00000350,0x00000793,0x000000db,0xfffffaf9,0xfffffd66,0x000001df,0x000001b7,0xffffffec,}, +{ 0x00000006,0xfffffe29,0xffffff56,0x00000414,0x00000215,0xfffffa2d,0xfffffbe5,0x000006de,0x0000067d,0xfffff8eb,0xfffff70d,0x00000671,0x00000b30,0xfffffaf9,0xfffff311,0x00000301,0x00000dfa,0xffffff62,0xfffff1cf,0xfffffe29,0x00000d8e,0x00000414,0xfffff3dd,0xfffffa2d,0x00000a1d,0x000006de,0xfffff845,0xfffff8eb,0x00000545,0x00000671,0xfffffcf8,0xfffffaf9,0x00000149,0x00000301,0xffffffc2,0xffffff62,}, +{ 0xffffff62,0x0000003e,0x00000301,0xfffffeb7,0xfffffaf9,0x00000308,0x00000671,0xfffffabb,0xfffff8eb,0x000007bb,0x000006de,0xfffff5e3,0xfffffa2d,0x00000c23,0x00000414,0xfffff272,0xfffffe29,0x00000e31,0xffffff62,0xfffff206,0x00000301,0x00000cef,0xfffffaf9,0xfffff4d0,0x00000671,0x000008f3,0xfffff8eb,0xfffff983,0x000006de,0x0000041b,0xfffffa2d,0xfffffdeb,0x00000414,0x000000aa,0xfffffe29,0xfffffffa,}, +{ 0x00000014,0x000001b7,0xfffffe21,0xfffffd66,0x00000507,0x000000db,0xfffff86d,0x00000350,0x0000079f,0xfffff7af,0xfffffbaf,0x00000be4,0xfffffe5b,0xfffff3dd,0x00000841,0x00000873,0xfffff2fa,0xfffffe26,0x00000e16,0xfffffa9b,0xfffff4fc,0x00000ac2,0x00000507,0xfffff37f,0x00000190,0x00000a6c,0xfffff99e,0xfffffa27,0x000007ff,0x000000ff,0xfffff97e,0x00000215,0x00000364,0xfffffd8f,0xffffff4b,0x0000009d,}, +{ 0x0000009b,0xfffffedf,0xfffffe95,0x00000445,0xfffffdeb,0xfffffb91,0x00000749,0xfffffedf,0xfffff7e6,0x000008d7,0x00000179,0xfffff490,0x00000885,0x00000507,0xfffff273,0x00000669,0x00000895,0xfffff221,0x00000313,0x00000b2f,0xfffff3b0,0xffffff69,0x00000c23,0xfffff6b3,0xfffffc65,0x00000b2f,0xfffffa5e,0xfffffad7,0x00000895,0xfffffdb4,0xfffffb29,0x00000507,0xffffffd1,0xfffffd46,0x00000179,0x00000022,}, +{ 0xffffffd1,0xfffffedf,0x00000313,0xfffffdb4,0xfffffdeb,0x00000669,0xfffffa5e,0xfffffedf,0x00000885,0xfffff6b3,0x00000179,0x000008d7,0xfffff3b0,0x00000507,0x00000749,0xfffff221,0x00000895,0x00000445,0xfffff273,0x00000b2f,0x0000009b,0xfffff490,0x00000c23,0xfffffd46,0xfffff7e6,0x00000b2f,0xfffffb29,0xfffffb91,0x00000895,0xfffffad7,0xfffffe95,0x00000507,0xfffffc65,0x00000022,0x00000179,0xffffff69,}, +{ 0xffffff6e,0x000001b7,0xfffffed3,0xfffffe5e,0x00000507,0xfffff9ef,0x000002ec,0x00000350,0xfffff720,0x000009b0,0xfffffbaf,0xfffffb69,0x00000ba7,0xfffff3dd,0x00000530,0x00000550,0xfffff2fa,0x00000d20,0xfffffa91,0xfffffa9b,0x00000cd4,0xfffff378,0x00000507,0x000004d3,0xfffff4ec,0x00000a6c,0xfffffbfd,0xfffffc53,0x000007ff,0xfffff8f1,0x00000283,0x00000215,0xfffffc0d,0x000002d8,0xffffff4b,0xffffffc4,}, +{ 0x00000049,0x0000003e,0xfffffdec,0x0000042c,0xfffffaf9,0x00000387,0x00000055,0xfffffabb,0x00000929,0xfffff600,0x000006de,0xffffff7b,0xfffff939,0x00000c23,0xfffff2c2,0x00000961,0xfffffe29,0xfffff971,0x00000c9a,0xfffff206,0x00000a3c,0xfffffd11,0xfffffaf9,0x00000aa3,0xfffff405,0x000008f3,0xfffffcd9,0xfffffd1d,0x000006de,0xfffff85e,0x00000589,0xfffffdeb,0xffffff14,0x00000244,0xfffffe29,0x0000008c,}, +{ 0x00000085,0xfffffe29,0x000002ef,0xfffffcd9,0x00000215,0x00000049,0xfffffc79,0x000006de,0xfffff69f,0x00000a3c,0xfffff70d,0x00000589,0xffffff74,0xfffffaf9,0x00000a00,0xfffff2c2,0x00000dfa,0xfffff405,0x000007a2,0xfffffe29,0xfffffbd4,0x00000929,0xfffff3dd,0x00000c9a,0xfffff55d,0x000006de,0xfffffdbc,0xfffffdec,0x00000545,0xfffff939,0x0000068f,0xfffffaf9,0x000002e3,0xffffff14,0xffffffc2,0x00000055,}, +{ 0xffffffa0,0x000000b5,0xffffff9a,0xffffff72,0x00000215,0xfffffc01,0x0000060f,0xfffff801,0x00000986,0xfffff59b,0x00000a6c,0xfffff67c,0x000007ad,0xfffffaf9,0x000001c5,0x000001cf,0xfffffa9b,0x000008a6,0xfffff4bb,0x00000d06,0xfffff23c,0x00000d72,0xfffff3dd,0x00000a02,0xfffff8b3,0x00000451,0xfffffea2,0xfffffebf,0x00000350,0xfffffb5a,0x00000535,0xfffffaf9,0x0000043d,0xfffffcf3,0x000001b7,0xffffff83,}, +{ 0xffffff8b,0x00000179,0xfffffd68,0x000003cb,0xfffffaf9,0x00000643,0xfffff88b,0x00000895,0xfffff667,0x00000a79,0xfffff4d1,0x00000bb5,0xfffff3f8,0x00000c23,0xfffff3f8,0x00000bb5,0xfffff4d1,0x00000a79,0xfffff667,0x00000895,0xfffff88b,0x00000643,0xfffffaf9,0x000003cb,0xfffffd68,0x00000179,0xffffff8b,0xffffff95,0x00000121,0xfffffe59,0x000001f9,0xfffffdeb,0x000001f9,0xfffffe59,0x00000121,0xffffff95,}}; + +static const short filter_int_const[SBLIMIT][64] = { +{ 23170, 24279, 25330, 26320, 27246, 28106, 28899, 29622, 30274, 30853, 31357, 31786, 32138, 32413, 32610, 32729, 32767, 32729, 32610, 32413, 32138, 31786, 31357, 30853, 30274, 29622, 28899, 28106, 27246, 26320, 25330, 24279, 23170, 22006, 20788, 19520, 18205, 16846, 15447, 14010, 12540, 11039, 9512, 7962, 6393, 4808, 3212, 1608, 0, -1607, -3211, -4807, -6392, -7961, -9511,-11038,-12539,-14009,-15446,-16845,-18204,-19519,-20787,-22005, }, +{ -23169,-19519,-15446,-11038, -6392, -1607, 3212, 7962, 12540, 16846, 20788, 24279, 27246, 29622, 31357, 32413, 32767, 32413, 31357, 29622, 27246, 24279, 20788, 16846, 12540, 7962, 3212, -1607, -6392,-11038,-15446,-19519,-23169,-26319,-28898,-30852,-32137,-32728,-32609,-31785,-30273,-28105,-25329,-22005,-18204,-14009, -9511, -4807, 0, 4808, 9512, 14010, 18205, 22006, 25330, 28106, 30274, 31786, 32610, 32729, 32138, 30853, 28899, 26320, }, +{ -23169,-28105,-31356,-32728,-32137,-29621,-25329,-19519,-12539, -4807, 3212, 11039, 18205, 24279, 28899, 31786, 32767, 31786, 28899, 24279, 18205, 11039, 3212, -4807,-12539,-19519,-25329,-29621,-32137,-32728,-31356,-28105,-23169,-16845, -9511, -1607, 6393, 14010, 20788, 26320, 30274, 32413, 32610, 30853, 27246, 22006, 15447, 7962, 0, -7961,-15446,-22005,-27245,-30852,-32609,-32412,-30273,-26319,-20787,-14009, -6392, 1608, 9512, 16846, }, +{ 23170, 14010, 3212, -7961,-18204,-26319,-31356,-32728,-30273,-24278,-15446, -4807, 6393, 16846, 25330, 30853, 32767, 30853, 25330, 16846, 6393, -4807,-15446,-24278,-30273,-32728,-31356,-26319,-18204, -7961, 3212, 14010, 23170, 29622, 32610, 31786, 27246, 19520, 9512, -1607,-12539,-22005,-28898,-32412,-32137,-28105,-20787,-11038, 0, 11039, 20788, 28106, 32138, 32413, 28899, 22006, 12540, 1608, -9511,-19519,-27245,-31785,-32609,-29621, }, +{ 23170, 30853, 32610, 28106, 18205, 4808, -9511,-22005,-30273,-32728,-28898,-19519, -6392, 7962, 20788, 29622, 32767, 29622, 20788, 7962, -6392,-19519,-28898,-32728,-30273,-22005, -9511, 4808, 18205, 28106, 32610, 30853, 23170, 11039, -3211,-16845,-27245,-32412,-31356,-24278,-12539, 1608, 15447, 26320, 32138, 31786, 25330, 14010, 0,-14009,-25329,-31785,-32137,-26319,-15446, -1607, 12540, 24279, 31357, 32413, 27246, 16846, 3212,-11038, }, +{ -23169, -7961, 9512, 24279, 32138, 30853, 20788, 4808,-12539,-26319,-32609,-29621,-18204, -1607, 15447, 28106, 32767, 28106, 15447, -1607,-18204,-29621,-32609,-26319,-12539, 4808, 20788, 30853, 32138, 24279, 9512, -7961,-23169,-31785,-31356,-22005, -6392, 11039, 25330, 32413, 30274, 19520, 3212,-14009,-27245,-32728,-28898,-16845, 0, 16846, 28899, 32729, 27246, 14010, -3211,-19519,-30273,-32412,-25329,-11038, 6393, 22006, 31357, 31786, }, +{ -23169,-32412,-28898,-14009, 6393, 24279, 32610, 28106, 12540, -7961,-25329,-32728,-27245,-11038, 9512, 26320, 32767, 26320, 9512,-11038,-27245,-32728,-25329, -7961, 12540, 28106, 32610, 24279, 6393,-14009,-28898,-32412,-23169, -4807, 15447, 29622, 32138, 22006, 3212,-16845,-30273,-31785,-20787, -1607, 18205, 30853, 31357, 19520, 0,-19519,-31356,-30852,-18204, 1608, 20788, 31786, 30274, 16846, -3211,-22005,-32137,-29621,-15446, 4808, }, 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29622,-12539,-11038, 28899,-31785, 18205, 4808,-25329, 32729, }, +{ -23169, 32413,-28898, 14010, 6393,-24278, 32610,-28105, 12540, 7962,-25329, 32729,-27245, 11039, 9512,-26319, 32767,-26319, 9512, 11039,-27245, 32729,-25329, 7962, 12540,-28105, 32610,-24278, 6393, 14010,-28898, 32413,-23169, 4808, 15447,-29621, 32138,-22005, 3212, 16846,-30273, 31786,-20787, 1608, 18205,-30852, 31357,-19519, 0, 19520,-31356, 30853,-18204, -1607, 20788,-31785, 30274,-16845, -3211, 22006,-32137, 29622,-15446, -4807, }, +{ -23169, 7962, 9512,-24278, 32138,-30852, 20788, -4807,-12539, 26320,-32609, 29622,-18204, 1608, 15447,-28105, 32767,-28105, 15447, 1608,-18204, 29622,-32609, 26320,-12539, -4807, 20788,-30852, 32138,-24278, 9512, 7962,-23169, 31786,-31356, 22006, -6392,-11038, 25330,-32412, 30274,-19519, 3212, 14010,-27245, 32729,-28898, 16846, 0,-16845, 28899,-32728, 27246,-14009, -3211, 19520,-30273, 32413,-25329, 11039, 6393,-22005, 31357,-31785, }, +{ 23170,-30852, 32610,-28105, 18205, -4807, -9511, 22006,-30273, 32729,-28898, 19520, -6392, -7961, 20788,-29621, 32767,-29621, 20788, -7961, -6392, 19520,-28898, 32729,-30273, 22006, -9511, -4807, 18205,-28105, 32610,-30852, 23170,-11038, -3211, 16846,-27245, 32413,-31356, 24279,-12539, -1607, 15447,-26319, 32138,-31785, 25330,-14009, 0, 14010,-25329, 31786,-32137, 26320,-15446, 1608, 12540,-24278, 31357,-32412, 27246,-16845, 3212, 11039, }, +{ 23170,-14009, 3212, 7962,-18204, 26320,-31356, 32729,-30273, 24279,-15446, 4808, 6393,-16845, 25330,-30852, 32767,-30852, 25330,-16845, 6393, 4808,-15446, 24279,-30273, 32729,-31356, 26320,-18204, 7962, 3212,-14009, 23170,-29621, 32610,-31785, 27246,-19519, 9512, 1608,-12539, 22006,-28898, 32413,-32137, 28106,-20787, 11039, 0,-11038, 20788,-28105, 32138,-32412, 28899,-22005, 12540, -1607, -9511, 19520,-27245, 31786,-32609, 29622, }, +{ -23169, 28106,-31356, 32729,-32137, 29622,-25329, 19520,-12539, 4808, 3212,-11038, 18205,-24278, 28899,-31785, 32767,-31785, 28899,-24278, 18205,-11038, 3212, 4808,-12539, 19520,-25329, 29622,-32137, 32729,-31356, 28106,-23169, 16846, -9511, 1608, 6393,-14009, 20788,-26319, 30274,-32412, 32610,-30852, 27246,-22005, 15447, -7961, 0, 7962,-15446, 22006,-27245, 30853,-32609, 32413,-30273, 26320,-20787, 14010, -6392, -1607, 9512,-16845, }, +{ -23169, 19520,-15446, 11039, -6392, 1608, 3212, -7961, 12540,-16845, 20788,-24278, 27246,-29621, 31357,-32412, 32767,-32412, 31357,-29621, 27246,-24278, 20788,-16845, 12540, -7961, 3212, 1608, -6392, 11039,-15446, 19520,-23169, 26320,-28898, 30853,-32137, 32729,-32609, 31786,-30273, 28106,-25329, 22006,-18204, 14010, -9511, 4808, 0, -4807, 9512,-14009, 18205,-22005, 25330,-28105, 30274,-31785, 32610,-32728, 32138,-30852, 28899,-26319, }, +{ 23170,-24278, 25330,-26319, 27246,-28105, 28899,-29621, 30274,-30852, 31357,-31785, 32138,-32412, 32610,-32728, 32767,-32728, 32610,-32412, 32138,-31785, 31357,-30852, 30274,-29621, 28899,-28105, 27246,-26319, 25330,-24278, 23170,-22005, 20788,-19519, 18205,-16845, 15447,-14009, 12540,-11038, 9512, -7961, 6393, -4807, 3212, -1607, 0, 1608, -3211, 4808, -6392, 7962, -9511, 11039,-12539, 14010,-15446, 16846,-18204, 19520,-20787, 22006, } }; + +static const int sfBand[6][23] = +{ +/* Table B.2.b: 22.05 kHz */ +{0,6,12,18,24,30,36,44,54,66,80,96,116,140,168,200,238,284,336,396,464,522,576}, +/* Table B.2.c: 24 kHz */ +{0,6,12,18,24,30,36,44,54,66,80,96,114,136,162,194,232,278,330,394,464,540,576}, +/* Table B.2.a: 16 kHz */ +{0,6,12,18,24,30,36,44,45,66,80,96,116,140,168,200,238,248,336,396,464,522,576}, +/* Table B.8.b: 44.1 kHz */ +{0,4, 8,12,16,20,24,30,36,44,52,62, 74, 90,110,134,162,196,238,288,342,418,576}, +/* Table B.8.c: 48 kHz */ +{0,4, 8,12,16,20,24,30,36,42,50,60, 72, 88,106,128,156,190,230,276,330,384,576}, +/* Table B.8.a: 32 kHz */ +{0,4, 8,12,16,20,24,30,36,44,54,66, 82,102,126,156,194,240,296,364,448,550,576} }; + +static const uint16 enwindow_int_const[512] = { +0x0000,0x0035,0x01fd,0x066c,0x4948,0x066c,0x01fd,0x0035,0x0000,0x0037,0x01f4,0x05d2,0x493c,0x06f8,0x0204,0x0034, +0x0000,0x0038,0x01e8,0x052a,0x491a,0x0776,0x0208,0x0032,0x0000,0x0038,0x01d9,0x0474,0x48e1,0x07e7,0x020a,0x0031, +0x0000,0x0039,0x01c8,0x03b0,0x4892,0x084b,0x0209,0x0030,0x0000,0x0039,0x01b3,0x02de,0x482d,0x08a2,0x0207,0x002e, +0x0000,0x0039,0x019b,0x01fd,0x47b2,0x08ed,0x0202,0x002c,0x0000,0x0039,0x0180,0x010f,0x4721,0x092b,0x01fc,0x002a, +0x0000,0x0038,0x0161,0x0011,0x467a,0x095e,0x01f4,0x0028,0x0000,0x0037,0x0140,0xff07,0x45bf,0x0985,0x01eb,0x0026, +0x0000,0x0036,0x011b,0xfdee,0x44f0,0x09a2,0x01e0,0x0025,0x0000,0x0034,0x00f3,0xfcc8,0x440c,0x09b4,0x01d4,0x0023, +0x0000,0x0032,0x00c7,0xfb93,0x4315,0x09bb,0x01c6,0x0021,0x0000,0x002f,0x0097,0xfa53,0x420b,0x09ba,0x01b8,0x001f, +0x0000,0x002c,0x0065,0xf905,0x40f0,0x09af,0x01a9,0x001d,0x0000,0x0029,0x002e,0xf7aa,0x3fc3,0x099b,0x0198,0x001c, +0x0000,0x0025,0xfff6,0xf643,0x3e85,0x0980,0x0188,0x001a,0xffff,0x0020,0xffb9,0xf4d1,0x3d37,0x095c,0x0176,0x0018, +0xffff,0x001b,0xff79,0xf354,0x3bda,0x0932,0x0165,0x0017,0xffff,0x0015,0xff36,0xf1cc,0x3a70,0x0901,0x0153,0x0015, +0xffff,0x000e,0xfeef,0xf03a,0x38f7,0x08ca,0x0141,0x0014,0xffff,0x0007,0xfea6,0xee9f,0x3773,0x088d,0x012f,0x0012, +0xfffe,0x0000,0xfe5a,0xecfb,0x35e3,0x084b,0x011c,0x0011,0xfffe,0xfff8,0xfe0b,0xeb50,0x3447,0x0804,0x010a,0x0010, +0xfffe,0xffef,0xfdbb,0xe99d,0x32a3,0x07ba,0x00f8,0x000f,0xfffd,0xffe5,0xfd67,0xe7e4,0x30f6,0x076b,0x00e6,0x000d, +0xfffd,0xffdb,0xfd12,0xe624,0x2f41,0x071a,0x00d4,0x000c,0xfffd,0xffd0,0xfcbb,0xe461,0x2d86,0x06c6,0x00c3,0x000b, +0xfffc,0xffc4,0xfc63,0xe299,0x2bc5,0x066f,0x00b2,0x000a,0xfffc,0xffb8,0xfc09,0xe0ce,0x2a00,0x0617,0x00a1,0x0009, +0xfffb,0xffaa,0xfbaf,0xdf01,0x2836,0x05be,0x0091,0x0009,0xfffb,0xff9d,0xfb54,0xdd33,0x266a,0x0563,0x0081,0x0008, +0xfffa,0xff8e,0xfaf9,0xdb65,0x249c,0x0508,0x0073,0x0007,0xfff9,0xff80,0xfa9e,0xd997,0x22ce,0x04ad,0x0064,0x0006, +0xfff8,0xff70,0xfa43,0xd7cb,0x2100,0x0452,0x0057,0x0006,0xfff8,0xff60,0xf9ea,0xd601,0x1f33,0x03f8,0x0049,0x0005, +0xfff7,0xff4f,0xf992,0xd43c,0x1d68,0x039e,0x003d,0x0005,0xfff6,0xff3e,0xf93b,0xd27b,0x1ba0,0x0346,0x0031,0x0004, +0xfff5,0xff2d,0xf8e7,0xd0c0,0x19dd,0x02ef,0x0026,0x0004,0xfff4,0xff1b,0xf896,0xcf0b,0x181d,0x029a,0x001c,0x0004, +0xfff2,0xff09,0xf847,0xcd5e,0x1664,0x0246,0x0012,0x0003,0xfff1,0xfef7,0xf7fd,0xcbba,0x14b1,0x01f6,0x0009,0x0003, +0xfff0,0xfee5,0xf7b6,0xca1e,0x1306,0x01a7,0x0001,0x0003,0xffef,0xfed2,0xf774,0xc88e,0x1162,0x015b,0xfffa,0x0002, +0xffed,0xfec0,0xf737,0xc70a,0x0fc7,0x0112,0xfff3,0x0002,0xffec,0xfeae,0xf700,0xc591,0x0e35,0x00cb,0xffec,0x0002, +0xffea,0xfe9c,0xf6cf,0xc427,0x0cad,0x0088,0xffe6,0x0002,0xffe9,0xfe8b,0xf6a5,0xc2ca,0x0b30,0x0048,0xffe1,0x0002, +0xffe7,0xfe79,0xf681,0xc17c,0x09be,0x000b,0xffdc,0x0001,0xffe5,0xfe69,0xf666,0xc03e,0x0857,0xffd3,0xffd8,0x0001, +0xffe4,0xfe58,0xf652,0xbf11,0x06fc,0xff9c,0xffd5,0x0001,0xffe2,0xfe49,0xf647,0xbdf6,0x05ae,0xff6a,0xffd2,0x0001, +0xffe0,0xfe3b,0xf646,0xbcec,0x046e,0xff3a,0xffcf,0x0001,0xffde,0xfe2d,0xf64d,0xbbf5,0x0339,0xff0e,0xffcd,0x0001, +0xffdc,0xfe21,0xf65f,0xbb11,0x0213,0xfee6,0xffcb,0x0001,0xffdb,0xfe16,0xf67c,0xba42,0x00fa,0xfec1,0xffca,0x0001, +0xffd9,0xfe0d,0xf6a3,0xb987,0xfff0,0xfea0,0xffc9,0x0001,0xffd7,0xfe05,0xf6d6,0xb8e0,0xfef2,0xfe81,0xffc8,0x0001, +0xffd5,0xfdff,0xf714,0xb84f,0xfe04,0xfe66,0xffc8,0x0000,0xffd3,0xfdfa,0xf75f,0xb7d4,0xfd23,0xfe4e,0xffc8,0x0000, +0xffd1,0xfdf8,0xf7b6,0xb76f,0xfc51,0xfe39,0xffc8,0x0000,0xffd0,0xfdf7,0xf81a,0xb720,0xfb8d,0xfe28,0xffc9,0x0000, +0xffcf,0xfdf9,0xf88b,0xb6e7,0xfad7,0xfe19,0xffc9,0x0000,0xffcd,0xfdfd,0xf909,0xb6c5,0xfa2f,0xfe0d,0xffca,0x0000, +}; + +static const uint8 int2idx_const[5000] = { + 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, + 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, + 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, + 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, + 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, + 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, + 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, + 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 31, + 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, + 34, 34, 34, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, + 36, 36, 36, 36, 36, 36, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, 38, 38, 38, + 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 40, 40, 40, 40, + 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, + 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, + 43, 43, 43, 43, 43, 43, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 45, 45, 45, 45, 45, 45, 45, 45, + 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 45, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 46, 47, 47, + 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 47, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, 48, + 48, 48, 48, 48, 48, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 49, 50, 50, 50, 50, 50, 50, 50, + 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 50, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, 51, + 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 52, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, 53, + 53, 53, 53, 53, 53, 53, 53, 53, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 54, 55, 55, 55, 55, + 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 55, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, 56, + 56, 56, 56, 56, 56, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 57, 58, 58, 58, 58, 58, 58, 58, + 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 58, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, 59, + 59, 59, 59, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 60, 61, 61, 61, 61, 61, 61, 61, 61, + 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 61, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, 62, + 62, 62, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 63, 64, 64, 64, 64, 64, 64, 64, 64, 64, + 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 64, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, 65, + 65, 65, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 66, 67, 67, 67, 67, 67, 67, 67, 67, + 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 67, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, + 68, 68, 68, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 69, 70, 70, 70, 70, 70, 70, 70, + 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 70, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, 71, + 71, 71, 71, 71, 71, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 72, 73, 73, 73, 73, 73, + 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 73, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, 74, + 74, 74, 74, 74, 74, 74, 74, 74, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 75, 76, 76, + 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 76, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, + 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 77, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, 78, + 78, 78, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 79, 80, 80, 80, 80, 80, 80, 80, + 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 80, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, 81, + 81, 81, 81, 81, 81, 81, 81, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 82, 83, + 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 83, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, + 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 84, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, 85, + 85, 85, 85, 85, 85, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 86, 87, 87, 87, 87, + 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 87, 88, 88, 88, 88, 88, 88, 88, 88, 88, 88, 88, 88, + 88, 88, 88, 88, 88, 88, 88, 88, 88, 88, 88, 88, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, 89, + 89, 89, 89, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 90, 91, 91, 91, 91, 91, + 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 91, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, + 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 92, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, 93, + 93, 93, 93, 93, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 94, 95, 95, 95, 95, + 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 95, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, + 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 96, 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, 97, + 97, 97, 97, 97, 97, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 98, 99, 99, + 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99,100,100,100,100,100,100,100,100,100,100, +100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,101,101,101,101,101,101,101,101,101,101,101,101,101,101,101,101,101, +101,101,101,101,101,101,101,101,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102,102, +102,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,103,104,104,104,104,104,104, +104,104,104,104,104,104,104,104,104,104,104,104,104,104,104,104,104,104,104,105,105,105,105,105,105,105,105,105,105,105,105,105, +105,105,105,105,105,105,105,105,105,105,105,105,106,106,106,106,106,106,106,106,106,106,106,106,106,106,106,106,106,106,106,106, +106,106,106,106,106,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,107,108, +108,108,108,108,108,108,108,108,108,108,108,108,108,108,108,108,108,108,108,108,108,108,108,108,109,109,109,109,109,109,109,109, +109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,109,110,110,110,110,110,110,110,110,110,110,110,110,110,110, +110,110,110,110,110,110,110,110,110,110,110,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111,111, +111,111,111,111,111,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,112,113, +113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,113,114,114,114,114,114,114,114,114, +114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,114,115,115,115,115,115,115,115,115,115,115,115,115,115,115, +115,115,115,115,115,115,115,115,115,115,115,115,116,116,116,116,116,116,116,116,116,116,116,116,116,116,116,116,116,116,116,116, +116,116,116,116,116,116,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117,117, +118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,118,119,119,119,119,119,119, +119,119,119,119,119,119,119,119,119,119,119,119,119,119,119,119,119,119,119,119,119,120,120,120,120,120,120,120,120,120,120,120, +120,120,120,120,120,120,120,120,120,120,120,120,120,120,120,121,121,121,121,121,121,121,121,121,121,121,121,121,121,121,121,121, +121,121,121,121,121,121,121,121,121,122,122,122,122,122,122,122,122,122,122,122,122,122,122,122,122,122,122,122,122,122,122,122, +122,122,122,122,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,123,124,124, +124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,124,125,125,125,125,125,125,125, +125,125,125,125,125,125,125,125,125,125,125,125,125,125,125,125,125,125,125,125,126,126,126,126,126,126,126,126,126,126,126,126, +126,126,126,126,126,126,126,126,126,126,126,126,126,126,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127,127, +127,127,127,127,127,127,127,127,127,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128,128, +128,128,128,128,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,129,130, +130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,130,131,131,131,131,131,131, 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+200,200,200,200,200,200,200,200,200,200,200,200,200,200,200,200,200,200,200,200,200,200,200,200,200,201,201,201,201,201,201,201, +201,201,201,201,201,201,201,201,201,201,201,201,201,201,201,201,201,201,201,201,201,201,201,201,202,202,202,202,202,202,202,202, +202,202,202,202,202,202,202,202,202,202,202,202,202,202,202,202,202,202,202,202,202,202,202,203,203,203,203,203,203,203,203,203, +203,203,203,203,203,203,203,203,203,203,203,203,203,203,203,203,203,203,203,203,203,203,203,204,204,204,204,204,204,204,204,204, +204,204,204,204,204,204,204,204,204,204,204,204,204,204,204,204,204,204,204,204,204,204,205,205,205,205,205,205,205,205,205,205, +205,205,205,205,205,205,205,205,205,205,205,205,205,205,205,205,205,205,205,205,205,206,206,206,206,206,206,206,206,206,206,206, +206,206,206,206,206,206,206,206,206,206,206,206,206,206,206,206,206,206,206,206,206,207,207,207,207,207,207,207,207,207,207,207, +207,207,207,207,207,207,207,207,207,207,207,207,207,207,207,207,207,207,207,207,208,208,208,208,208,208,208,208,208,208,208,208, +208,208,208,208,208,208,208,208,208,208,208,208,208,208,208,208,208,208,208,208,209,209,209,209,209,209,209,209,209,209,209,209, +209,209,209,209,209,209,209,209,209,209,209,209,209,209,209,209,209,209,209,209,210,210,210,210,210,210,210,210,210,210,210,210, +210,210,210,210,210,210,210,210 }; + +static const uint16 int3idx[32768] = { + 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, 2, 2, 3, 3, 3, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 4, 4, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 5, 6, 6, 6, 6, 6, 6, 6, 6, 6, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, 8, 8, 8, + 8, 8, 8, 8, 8, 8, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 11, 11, 11, + 11, 11, 11, 11, 11, 11, 11, 11, 11, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, + 13, 13, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 16, 16, 16, 16, + 16, 16, 16, 16, 16, 16, 16, 16, 16, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 18, 18, 18, 18, 18, 18, 18, 18, 18, + 18, 18, 18, 18, 18, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, 20, + 20, 20, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 21, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 23, + 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 24, 25, 25, + 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 27, 27, 27, + 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 27, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 28, 29, 29, + 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 29, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 30, 31, + 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, 32, + 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, + 34, 34, 34, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 35, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, 36, + 36, 36, 36, 36, 36, 36, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 37, 38, 38, 38, 38, 38, 38, 38, 38, + 38, 38, 38, 38, 38, 38, 38, 38, 38, 38, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 39, 40, 40, 40, 40, + 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, 41, + 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 42, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, 43, + 43, 43, 43, 43, 43, 43, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 44, 45, 45, 45, 45, 45, 45, 45, 45, + 45, 45, 45, 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Huffmancodebits( uint16 *ix, int *xr, side_info_t *gi ); +int HuffmanCode(int table_select, uint16 *ix, int *xr); +int HuffmanCount1(unsigned tbl, uint16 *ix, int *xr ); +int new_choose_table( uint16 ix[SAMP_PER_FRAME2], uint32 begin, uint32 end ); +void putbits(uint32 val, uint32 nbit); +int count_bit(uint16 ix[SAMP_PER_FRAME2], uint32 start, uint32 end, uint32 table ); +int bigv_bitcount(uint16 ix[SAMP_PER_FRAME2], side_info_t *gi); +void bigv_tab_select( uint16 ix[SAMP_PER_FRAME2], side_info_t *cod_info ); +void subdivide(side_info_t *cod_info); +void mdct_sub_int(int sb_sample[2][3][18][SBLIMIT], int (*mdct_freq)[2][SAMP_PER_FRAME2]); +void filter_subband(int s[SBLIMIT], int off, int k); + +void putbits(uint32 val, uint32 nbit) +{ + int new_bitpos = CodedData.bitpos + nbit; + int ptrpos = CodedData.bitpos >> 5; + + val = val & (0xffffffff >> (32 - nbit)); + + /* data fit in one uint32 */ + if(((new_bitpos - 1) >> 5) == ptrpos) + CodedData.bbuf[ptrpos] |= val << ((32 - new_bitpos) & 31); + else + { + CodedData.bbuf[ptrpos ] |= val >> ((new_bitpos - 32) & 31); + CodedData.bbuf[ptrpos+1] = val << ((32 - new_bitpos) & 31); + } + + CodedData.bitpos = new_bitpos; +} + +/* This is called after a frame of audio has been quantized and coded. + It will write the encoded audio to the bitstream. Note that from a + layer3 encoder's perspective the bit stream is primarily a series + of main_data() blocks, with header and side information inserted at + the proper locations to maintain framing. See Figure A.7 in the IS */ +void format_bitstream( uint16 enc[2][2][SAMP_PER_FRAME2], + side_info_t side[2][2], int (*xr)[2][SAMP_PER_FRAME2] ) +{ + int gr, ch; + + encodeSideInfo( side ); + + for(gr=0; gr<2; gr++) + for(ch=0; ch<cfg.channels; ch++) + Huffmancodebits( &enc[gr][ch][0], &xr[gr][ch][0], &side[gr][ch] ); +} + +void encodeSideInfo( side_info_t si[2][2] ) +{ + int gr, ch, header; + + header = 0xfff00000; + header |= cfg.mpg.type << 19; /* mp3 type: 1 */ + header |= 1 << 17; /* mp3 layer: 1 */ + header |= 1 << 16; /* mp3 crc: 1 */ + header |= cfg.mpg.bitrate_index << 12; + header |= cfg.mpg.smprate_index << 10; + header |= cfg.mpg.padding << 9; + header |= cfg.mpg.mode << 6; + header |= 1 << 2; /* mp3 original: 1 */ + + putbits( header, 32 ); + putbits( 0, cfg.channels == 2 ? 20 : 18 ); + + for(gr=0; gr<2; gr++) + for(ch=0; ch<cfg.channels; ch++) + { + side_info_t *gi = &si[gr][ch]; + + putbits( gi->part2_3_length, 12 ); + putbits( gi->big_values, 9 ); + putbits( gi->global_gain, 8 ); + putbits( gi->table_select[0], 10 ); + putbits( gi->table_select[1], 5 ); + putbits( gi->table_select[2], 5 ); + putbits( gi->region0_count, 4 ); + putbits( gi->region1_count, 3 ); + putbits( gi->table_select[3], 3 ); + } +} + +/* Note the discussion of huffmancodebits() on pages 28 and 29 of the IS, + as well as the definitions of the side information on pages 26 and 27. */ +void Huffmancodebits( uint16 *ix, int *xr, side_info_t *gi ) +{ + int region1Start; + int region2Start; + int i, bigvalues, count1End; + int stuffingBits; + int bitsWritten = 0; + uint32 scalefac_index; + + /* 1: Write the bigvalues */ + bigvalues = gi->big_values << 1; + scalefac_index = gi->region0_count + 1; + region1Start = scalefac[ scalefac_index ]; + scalefac_index += gi->region1_count + 1; + region2Start = scalefac[ scalefac_index ]; + + for(i=0; i<region1Start; i+=2) + bitsWritten += HuffmanCode(gi->table_select[0], ix+i, xr+i); + + for( ; i<region2Start; i+=2) + bitsWritten += HuffmanCode(gi->table_select[1], ix+i, xr+i); + + for( ; i<bigvalues; i+=2) + bitsWritten += HuffmanCode(gi->table_select[2], ix+i, xr+i); + + /* 2: Write count1 area */ + count1End = bigvalues + (gi->count1 << 2); + for(i=bigvalues; i<count1End; i+=4) + bitsWritten += HuffmanCount1(gi->table_select[3], ix+i, xr+i); + + if((stuffingBits = gi->part2_3_length - bitsWritten) != 0) + { + int stuffingWords = stuffingBits / 32; + int remainingBits = stuffingBits % 32; + + if( remainingBits ) + putbits( ~0, remainingBits ); + + /* Due to the nature of the Huffman code tables, we will pad with ones */ + while( stuffingWords-- ) + putbits( ~0, 32 ); + + bitsWritten += stuffingBits; + } +} + +int HuffmanCount1(unsigned tbl, uint16 *ix, int *xr) +{ + uint32 dat, p, s; + int len, v, w, x, y; + #define signv (xr[0] < 0 ? 1 : 0) + #define signw (xr[1] < 0 ? 1 : 0) + #define signx (xr[2] < 0 ? 1 : 0) + #define signy (xr[3] < 0 ? 1 : 0) + + v = ix[0]; + w = ix[1]; + x = ix[2]; + y = ix[3]; + p = v + (w << 1) + (x << 2) + (y << 3); + + switch(p) + { + default: len = 0; s = 0; break; + case 1: len = 1; s = signv; break; + case 2: len = 1; s = signw; break; + case 3: len = 2; s = (signv << 1) + signw; break; + case 4: len = 1; s = signx; break; + case 5: len = 2; s = (signv << 1) + signx; break; + case 6: len = 2; s = (signw << 1) + signx; break; + case 7: len = 3; s = (signv << 2) + (signw << 1) + signx; break; + case 8: len = 1; s = signy; break; + case 9: len = 2; s = (signv << 1) + signy; break; + case 10: len = 2; s = (signw << 1) + signy; break; + case 11: len = 3; s = (signv << 2) + (signw << 1) + signy; break; + case 12: len = 2; s = (signx << 1) + signy; break; + case 13: len = 3; s = (signv << 2) + (signx << 1) + signy; break; + case 14: len = 3; s = (signw << 2) + (signx << 1) + signy; break; + case 15: len = 4; s = (signv << 3) + (signw << 2) + (signx << 1) + signy; break; + } + + dat = (ht_count1[tbl][0][p] << len) + s; + len = ht_count1[tbl][1][p]; + putbits( dat, len ); + + return len; +} + +/* Implements the pseudocode of page 98 of the IS */ +int HuffmanCode(int table_select, uint16 *ix, int *xr) +{ + unsigned int linbitsx, linbitsy, linbits, idx; + const struct huffcodetab *h; + int x, y, bit; + uint32 code; + #define sign_x (xr[0] < 0 ? 1 : 0) + #define sign_y (xr[1] < 0 ? 1 : 0) + + if(table_select == 0) + return 0; + + x = ix[0]; + y = ix[1]; + h = &ht[table_select]; + linbits = h->linbits; + linbitsx = linbitsy = 0; + + if( table_select > 15 ) + { /* ESC-table is used */ + if(x > 14) { linbitsx = x - 15; x = 15; } + if(y > 14) { linbitsy = y - 15; y = 15; } + + idx = (x * h->ylen) + y; + code = h->table[idx]; + bit = h->hlen [idx]; + + if(x) + { + if(x > 14) + { + code = (code << linbits) | linbitsx; + bit += linbits; + } + + code = (code << 1) | sign_x; + bit += 1; + } + + if(y) + { + if(y > 14) + { + code = (code << linbits) | linbitsy; + bit += linbits; + } + + code = (code << 1) | sign_y; + bit += 1; + } + } + else + { /* No ESC-words */ + idx = (x * h->ylen) + y; + code = h->table[idx]; + bit = h->hlen [idx]; + + if(x) + { + code = (code << 1) | sign_x; + bit += 1; + } + + if(y) + { + code = (code << 1) | sign_y; + bit += 1; + } + } + + putbits( code, bit ); + + return bit; +} + +/***************************************************************************/ +/* Choose the Huffman table that will encode ix[begin..end] with */ +/* the fewest bits. */ +/* Note: This code contains knowledge about the sizes and characteristic */ +/* of the Huffman tables as defined in the IS (Table B.7), and will not */ +/* work with any arbitrary tables. */ +/***************************************************************************/ +int new_choose_table( uint16 ix[SAMP_PER_FRAME2], uint32 begin, uint32 end ) +{ + uint32 i; + int max, sum0, sum1, table0, table1; + + for(i=begin,max=0; i<end; i++) + if(ix[i] > max) + max = ix[i]; + + if(!max) + return 0; + + table0 = 0; + table1 = 0; + + if(max <= 15) + { + /* try tables with no linbits */ + /* indx: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 */ + /* xlen: 0, 2, 3, 3, 0, 4, 4, 6, 6, 6, 8, 8, 8, 16, 0, 16 */ + for(table0=0; table0<14; table0++) + if(ht[table0].xlen > max) + break; + + sum0 = count_bit(ix, begin, end, table0); + + switch( table0 ) + { + case 2: sum1 = count_bit( ix, begin, end, 3 ); + if(sum1 <= sum0) table0 = 3; break; + + case 5: sum1 = count_bit( ix, begin, end, 6 ); + if(sum1 <= sum0) table0 = 6; break; + + case 7: sum1 = count_bit( ix, begin, end, 8 ); + if(sum1 <= sum0) { table0 = 8; sum0 = sum1; } + sum1 = count_bit( ix, begin, end, 9 ); + if(sum1 <= sum0) table0 = 9; break; + + case 10: sum1 = count_bit( ix, begin, end, 11 ); + if(sum1 <= sum0) { table0 =11; sum0 = sum1; } + sum1 = count_bit( ix, begin, end, 12); + if(sum1 <= sum0) table0 = 12; break; + + case 13: sum1 = count_bit( ix, begin, end, 15 ); + if(sum1 <= sum0) table0 = 15; break; + } + } + else + { + /* try tables with linbits */ + max -= 15; + + /* index : 15 16 17 18 19 20 21 22 23 */ + /* linmax: 0 1 3 7 15 63 255 1023 8191 */ + for(table0=15; table0<24; table0++) + if(ht[table0].linmax >= max) + break; + + /* index : 24 25 26 27 28 29 30 31 */ + /* linmax: 15 31 63 127 255 511 2047 8191 */ + for(table1=24; table1<32; table1++) + if(ht[table1].linmax >= max) + break; + + sum0 = count_bit(ix, begin, end, table0); + sum1 = count_bit(ix, begin, end, table1); + + if(sum1 < sum0) + table0 = table1; + } + return table0; +} + +/*************************************************************************/ +/* Function: Count the number of bits necessary to code the subregion. */ +/*************************************************************************/ +int count_bit(uint16 ix[SAMP_PER_FRAME2], uint32 start, uint32 end, uint32 table) +{ + uint32 i; + int sum; + int x, y; + unsigned linbits, ylen; + const struct huffcodetab *h; + + h = &ht[table]; + sum = 0; + ylen = h->ylen; + + if(table > 15) + { // ESC-table is used + linbits = h->linbits; + for(i=start; i<end; i+=2) + { + x = ix[i]; + y = ix[i+1]; + + if(x) + { + if(x > 14) { x = 15; sum += linbits; } + sum++; + } + + if(y) + { + if(y > 14) { y = 15; sum += linbits; } + sum++; + } + + sum += h->hlen[(x * ylen) + y]; + } + } + else + { /* No ESC-words */ + for(i=start; i<end; i+=2) + { + x = ix[i]; + y = ix[i+1]; + + sum += h->hlen[(x * ylen) + y]; + + if(x) sum++; + if(y) sum++; + } + } + + return sum; +} + +/*************************************************************************/ +/* Function: Quantization of the vector xr ( -> ix) */ +/*************************************************************************/ +int quantize_int(int xr[SAMP_PER_FRAME2], uint16 ix[SAMP_PER_FRAME2], side_info_t *cod_info) +{ + uint32 i, ind, step, frac_pow[] = { 0x80000, 0x6ba28, 0x5a828, 0x4c1c0 }; + + step = frac_pow[cod_info->quantizerStepSize & 3] >> cod_info->quantizerStepSize / 4; + + for(i=SAMP_PER_FRAME2; i--; ) + { + ind = (abs(xr[i]) * step + 32768) >> 16; + + if(ind < 5000) + ix[i] = int2idx[ind]; + else + if(ind < 32768) + ix[i] = int3idx[ind]; + else + return 0; + } + + return 1; +} + +/*************************************************************************/ +/* Function: Calculation of rzero, count1, big_values */ +/* (Partitions ix into big values, quadruples and zeros). */ +/*************************************************************************/ +int calc_runlen( uint16 ix[SAMP_PER_FRAME2], side_info_t *cod_info ) +{ + int p, i, sum0 = 0, sum1 = 0; + + for(i=SAMP_PER_FRAME2; i-=2; ) + if(ix[i-1] | ix[i-2]) + break; + + cod_info->count1 = 0; + + for( ; i>3; i-=4) + { + int v = ix[i-1]; + int w = ix[i-2]; + int x = ix[i-3]; + int y = ix[i-4]; + + if((v | w | x | y) <= 1) + { + p = (y) + (x<<1) + (w<<2) + (v<<3); + + sum0 += ht_count1[0][1][p]; /* add table0 hlength */ + sum1 += ht_count1[1][1][p]; /* add table1 hlength */ + + cod_info->count1++; + } + else break; + } + + cod_info->big_values = i >> 1; + + if(sum0 < sum1) + { + cod_info->table_select[3] = 0; + return sum0; + } + else + { + cod_info->table_select[3] = 1; + return sum1; + } +} + +/*************************************************************************/ +/* presumable subdivides the bigvalue region which will use separate Huffman tables */ +/*************************************************************************/ +void subdivide(side_info_t *cod_info) +{ + int scfb_anz = 0; + int bigvalues_region; + int thiscount, index; + + if( !cod_info->big_values ) + { /* no big_values region */ + cod_info->region0_count = 0; + cod_info->region1_count = 0; + } + else + { + bigvalues_region = 2 * cod_info->big_values; + + /* Calculate scfb_anz */ + while( scalefac[scfb_anz] < bigvalues_region ) + scfb_anz++; + + cod_info->region0_count = subdv_table[scfb_anz].region0_count; + thiscount = cod_info->region0_count; + index = thiscount + 1; + while(thiscount && (scalefac[index] > bigvalues_region)) + { + thiscount--; + index--; + } + cod_info->region0_count = thiscount; + cod_info->region1_count = subdv_table[scfb_anz].region1_count; + index = cod_info->region0_count + cod_info->region1_count + 2; + thiscount = cod_info->region1_count; + while(thiscount && (scalefac[index] > bigvalues_region)) + { + thiscount--; + index--; + } + cod_info->region1_count = thiscount; + cod_info->address1 = scalefac[cod_info->region0_count+1]; + cod_info->address2 = scalefac[cod_info->region0_count+cod_info->region1_count+2]; + cod_info->address3 = bigvalues_region; + } +} + +/*************************************************************************/ +/* Function: Select huffman code tables for bigvalues regions */ +/*************************************************************************/ +void bigv_tab_select( uint16 ix[SAMP_PER_FRAME2], side_info_t *cod_info ) +{ + cod_info->table_select[0] = 0; + cod_info->table_select[1] = 0; + cod_info->table_select[2] = 0; + + if( cod_info->address1 > 0 ) + cod_info->table_select[0] = new_choose_table(ix, 0 , cod_info->address1); + + if( cod_info->address2 > cod_info->address1 ) + cod_info->table_select[1] = new_choose_table(ix, cod_info->address1, cod_info->address2); + + if( cod_info->big_values<<1 > cod_info->address2 ) + cod_info->table_select[2] = new_choose_table(ix, cod_info->address2, cod_info->big_values<<1); +} + +/*************************************************************************/ +/* Function: Count the number of bits necessary to code the bigvalues region */ +/*************************************************************************/ +int bigv_bitcount(uint16 ix[SAMP_PER_FRAME2], side_info_t *gi) +{ + int bits = 0; + uint32 table; + + if((table=gi->table_select[0])) /* region0 */ + bits += count_bit(ix, 0 , gi->address1, table); + + if((table=gi->table_select[1])) /* region1 */ + bits += count_bit(ix, gi->address1, gi->address2, table); + + if((table=gi->table_select[2])) /* region2 */ + bits += count_bit(ix, gi->address2, gi->address3, table); + + return bits; +} + +int quantcnt; + +/* Speed up the outer_loop code which is called by iteration_loop. + The outer_loop function precedes the call to the function inner_loop + with a call to bin_search gain defined below, + which returns a good starting quantizerStepSize. */ +int quantize_and_count_bits(int xr[SAMP_PER_FRAME2], uint16 ix[SAMP_PER_FRAME2], side_info_t *cod_info) +{ + int bits = 10000; + + quantcnt++; + + if(quantize_int(xr, ix, cod_info)) + { + bits = calc_runlen(ix, cod_info); /* rzero,count1,big_values*/ + subdivide(cod_info); /* bigvalues sfb division */ + bigv_tab_select(ix,cod_info); /* codebook selection*/ + bits += bigv_bitcount(ix,cod_info); /* bit count */ + } + + return bits; +} + +/******************************************************************************/ +/* The code selects the best quantizerStepSize for a particular set of scalefacs */ +/******************************************************************************/ +int inner_loop_int(int xr[2][2][SAMP_PER_FRAME2], int max_bits, side_info_t *cod_info, int gr, int ch ) +{ + int *xrs; /* int[SAMP_PER_FRAME2] *xr; */ + uint16 *ix; /* int[SAMP_PER_FRAME2] *ix; */ + int bits; + + xrs = &xr[gr][ch][0]; + ix = enc_data[gr][ch]; + + while((bits=quantize_and_count_bits(xrs, ix, cod_info)) < max_bits-64) + { + if(cod_info->quantizerStepSize == 0) + break; + + if(cod_info->quantizerStepSize <= 2) + cod_info->quantizerStepSize = 0; + else + cod_info->quantizerStepSize -= 2; + } + + while(bits > max_bits) + { + cod_info->quantizerStepSize++; + bits = quantize_and_count_bits(xrs, ix, cod_info); + } + + return bits; +} + +/************************************************************************/ +/* iteration_loop() */ +/************************************************************************/ +void iteration_loop(int mdct_freq_org[2][2][SAMP_PER_FRAME2], side_info_t cod_info[2][2], int mean_bits) +{ + int max_bits; + int ch, gr; + int ResvSize = 0; /* Layer3 bit reservoir: Described in C.1.5.4.2.2 of the IS */ + + for(gr=2; gr--; ) + { + for(ch=cfg.channels; ch--; ) + { + /* calculation of number of available bit( per granule ) */ + max_bits = mean_bits / cfg.channels; + + cod_info[gr][ch].big_values = 0; + cod_info[gr][ch].count1 = 0; + cod_info[gr][ch].table_select[0] = 0; + cod_info[gr][ch].table_select[1] = 0; + cod_info[gr][ch].table_select[2] = 0; + cod_info[gr][ch].region0_count = 0; + cod_info[gr][ch].region1_count = 0; + cod_info[gr][ch].table_select[3] = 0; + cod_info[gr][ch].part2_3_length = inner_loop_int(mdct_freq_org, max_bits, &cod_info[gr][ch], gr, ch); + cod_info[gr][ch].global_gain = cod_info[gr][ch].quantizerStepSize + 210 - 0x40; + + /* Readjusts the size of the reservoir to reflect the granule's usage */ + ResvSize += max_bits - cod_info[gr][ch].part2_3_length; + } + } + +/* Makes sure that the reservoir size is within limits, possibly by adding + stuffing bits. Note that stuffing bits are added by increasing a granule's + part2_3_length */ + cod_info[0][0].part2_3_length += ResvSize; +} + +/*-------------------------------------------------------------------*/ +/* Function: Calculation of the MDCT */ +/* In the case of long blocks ( block_type 0,1,3 ) there are */ +/* 36 coefficents in the time domain and 18 in the frequency */ +/* domain. */ +/*-------------------------------------------------------------------*/ + +/* TODO: This MDCT implementation is very crude, and should be replaced by + a completely different algorithm. */ +void mdct_int( int *in, int *out ) +{ + int m, tmp=0; + + for(m=18; m--; ) + { +#ifdef CPU_COLDFIRE + { int *wint = win_int[m]; + int *indat = in; + + asm volatile( + "movem.l (%[indat]), %%d0-%%d7\n" + "move.l (%[wint])+, %%a5\n" + "mac.l %%d0, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d1, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d2, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d3, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d4, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d5, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d6, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d7, %%a5, (%[wint])+, %%a5, %%acc0\n" + "movem.l (32,%[indat]), %%d0-%%d7\n" + "mac.l %%d0, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d1, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d2, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d3, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d4, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d5, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d6, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d7, %%a5, (%[wint])+, %%a5, %%acc0\n" + "movem.l (64,%[indat]), %%d0-%%d7\n" + "mac.l %%d0, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d1, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d2, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d3, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d4, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d5, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d6, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d7, %%a5, (%[wint])+, %%a5, %%acc0\n" + "movem.l (96,%[indat]), %%d0-%%d7\n" + "mac.l %%d0, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d1, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d2, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d3, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d4, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d5, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d6, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d7, %%a5, (%[wint])+, %%a5, %%acc0\n" + "movem.l (128,%[indat]), %%d0-%%d3\n" + "mac.l %%d0, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d1, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d2, %%a5, (%[wint])+, %%a5, %%acc0\n" + "mac.l %%d3, %%a5, %%acc0\n" + "movclr.l %%acc0, %[tmp]" + : [wint] "+a" (wint), [tmp] "+r" (tmp) : [indat] "a" (indat) + : "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "a5"); + } +#else + int k; + for(k=36,tmp=0; k--; ) + tmp += in[k] * win_int[m][k]; +#endif + out[m] = (tmp + 16384) >> 15; + } +} + + +void mdct_sub_int(int sb_sample[2][3][18][SBLIMIT], int (*mdct_freq)[2][SAMP_PER_FRAME2]) +{ + int (*mdct_enc)[2][32][18] = (int (*)[2][32][18]) mdct_freq; + int ch, gr, band, k, bu, bd; + + for(gr=0; gr<2; gr++) + for(ch=cfg.channels; ch--; ) + { + /* 576=4*16*9: Compensate for inversion in the analysis filter */ + for(band=33; (band-=2)>0; ) + for(k=19; (k-=2)>0; ) + sb_sample[ch][gr+1][k][band] = -sb_sample[ch][gr+1][k][band]; + + /* 82944=4*32*648: Perform imdct of 18 previous subband samples + 18 current subband samples */ + for(band=32; band--; ) + { + for(k=18; k--; ) + { + mdct_in[k] = sb_sample[ch][ gr ][k][band]; + mdct_in[k+18] = sb_sample[ch][gr+1][k][band]; + } + + mdct_int(mdct_in, &mdct_enc[gr][ch][band][0]); + } + + /* 1024=4*256: Perform aliasing reduction butterfly*/ + for(band=31; band--; ) + for(k=8; k--; ) + { + bu = mdct_enc[gr][ch][band][17-k] * cs_int[k] + mdct_enc[gr][ch][band+1][k] * ca_int[k]; + bd = mdct_enc[gr][ch][band+1][k] * cs_int[k] - mdct_enc[gr][ch][band][17-k] * ca_int[k]; + mdct_enc[gr][ch][band][17-k] = (bu + 16384) >> 15; + mdct_enc[gr][ch][band+1][k] = (bd + 16384) >> 15; + } + } + + /* Save latest granule's subband samples to be used in the next mdct call */ + for(ch=cfg.channels ;ch--; ) + memcpy(sb_sample[ch][0], sb_sample[ch][2], 18 * 32 * sizeof(int)); +} + +void fill_subband(long *buffer, int off) +{ + long i, t; + + /* replace 32 oldest left/right samples with 32 new samples */ + if(enc_channels == 2) + { + for(i=32; i--; ) + { + t = *buffer++; + x_int0[i+off] = (short)(t >> 16); + x_int1[i+off] = (short)t; + } + } + else + { + for(i=32; i--; ) + { + t = *buffer++; + x_int0[i+off] = (short)((((t<<16)>>16) + (t>>16)) >> 1); + } + } +} + +void filter_subband(int s[SBLIMIT], int off, int k) +{ + short *enwindow = enwindow_int; + int i, tmp = 0; +#ifdef CPU_COLDFIRE + int reg_buff[14]; /* register storage buffer */ +#endif + + /* 36864=72*512: shift samples into proper window positions */ +#ifdef CPU_COLDFIRE + { short *xint = &x_int[k][off]; + short *yint = y_int; + + asm volatile ("movem.l %%d0/%%d2-%%d7/%%a2-%%a7,%0\n" : "=m" (*(int*)reg_buff)); + asm volatile( + "moveq.l #32, %%d0\n" + "move.l %%d0, %[i]\n" /* set loop counter */ + "move.l %[xint], %%d0\n" /* d0 = x_int[k] */ + "or.l #0x3ff, %%d0\n" + "move.l %%d0, %%mask\n" /* set address mask */ + "move.l (%[xint]), %%d4\n" /* d4 = x_int[k][off] */ + + "loop_start:\n" + "movem.l (%[enwindow]), %%d0-%%d3\n" /* load 4 values */ + "mac.w %%d0u, %%d4u, (0x080,%[xint])&, %%d5, %%acc0\n" + "mac.w %%d0l, %%d5u, (0x100,%[xint])&, %%d6, %%acc0\n" + "mac.w %%d1u, %%d6u, (0x180,%[xint])&, %%d7, %%acc0\n" + "mac.w %%d1l, %%d7u, (0x200,%[xint])&, %%a2, %%acc0\n" + "mac.w %%d2u, %%a2u, (0x280,%[xint])&, %%a3, %%acc0\n" + "mac.w %%d2l, %%a3u, (0x300,%[xint])&, %%a4, %%acc0\n" + "mac.w %%d3u, %%a4u, (0x380,%[xint])&, %%a5, %%acc0\n" + "mac.w %%d3l, %%a5u, %%acc0\n" + + "movem.l (16,%[enwindow]), %%d0-%%d3\n" /* load 8 values */ + "mac.w %%d0u, %%d4l, %%acc1\n" + "mac.w %%d0l, %%d5l, %%acc1\n" + "mac.w %%d1u, %%d6l, %%acc1\n" + "mac.w %%d1l, %%d7l, %%acc1\n" + "mac.w %%d2u, %%a2l, %%acc1\n" + "mac.w %%d2l, %%a3l, %%acc1\n" + "mac.w %%d3u, %%a4l, %%acc1\n" + "addq.l #4, %[xint]\n" /* xint += 2 */ + "mac.w %%d3l, %%a5l, (%[xint])&, %%d4, %%acc1\n" + + "movclr.l %%acc0, %%d5\n" + "movclr.l %%acc1, %%d6\n" + "move.l #262144, %%d7\n" + "add.l %%d7, %%d5\n" + "add.l %%d7, %%d6\n" + "moveq.l #19, %%d7\n" + "asr.l %%d7, %%d5\n" + "asr.l %%d7, %%d6\n" + "move.w %%d5, (%[yint])+\n" + "move.w %%d6, (%[yint])+\n" + + "add.l #32, %[enwindow]\n" /* enwindow += 16 */ + + "sub.l #1, %[i]\n" + "jbne loop_start\n" + + : [xint] "+a" (xint), [yint] "+a" (yint), [i] "+m" (i) + : [enwindow] "a" (enwindow) + : "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "a2", "a3", "a4", "a5"); + + asm volatile ("movem.l %0,%%d0/%%d2-%%d7/%%a2-%%a7\n" : : "m" (*(int*)reg_buff)); + } +#else + for(i=0; i<64; i++) + { + for(j=0, tmp=0; j<512; j+=64) + tmp += (int)x_int[k][(i+j+off)&(HAN_SIZE-1)] * (int)*(enwindow++); + y_int[i] = (short)((tmp + (1<<18)) >> 19); + } +#endif + + /* 147456=72*2048 */ + for(i=SBLIMIT; i--; ) // SBLIMIT: 32 + { + short *filt = filter_int[i]; + +#ifdef CPU_COLDFIRE + { + asm volatile( + "move.l (%[yint])+, %%a5\n" + "movem.l (%[filt]), %%d0-%%d7\n" + "mac.w %%d0u, %%a5u, %%acc0\n" + "mac.w %%d0l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d1u, %%a5u, %%acc0\n" + "mac.w %%d1l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d2u, %%a5u, %%acc0\n" + "mac.w %%d2l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d3u, %%a5u, %%acc0\n" + "mac.w %%d3l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d4u, %%a5u, %%acc0\n" + "mac.w %%d4l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d5u, %%a5u, %%acc0\n" + "mac.w %%d5l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d6u, %%a5u, %%acc0\n" + "mac.w %%d6l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d7u, %%a5u, %%acc0\n" + "mac.w %%d7l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "movem.l (32,%[filt]), %%d0-%%d7\n" + "mac.w %%d0u, %%a5u, %%acc0\n" + "mac.w %%d0l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d1u, %%a5u, %%acc0\n" + "mac.w %%d1l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d2u, %%a5u, %%acc0\n" + "mac.w %%d2l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d3u, %%a5u, %%acc0\n" + "mac.w %%d3l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d4u, %%a5u, %%acc0\n" + "mac.w %%d4l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d5u, %%a5u, %%acc0\n" + "mac.w %%d5l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d6u, %%a5u, %%acc0\n" + "mac.w %%d6l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d7u, %%a5u, %%acc0\n" + "mac.w %%d7l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "movem.l (64,%[filt]), %%d0-%%d7\n" + "mac.w %%d0u, %%a5u, %%acc0\n" + "mac.w %%d0l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d1u, %%a5u, %%acc0\n" + "mac.w %%d1l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d2u, %%a5u, %%acc0\n" + "mac.w %%d2l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d3u, %%a5u, %%acc0\n" + "mac.w %%d3l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d4u, %%a5u, %%acc0\n" + "mac.w %%d4l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d5u, %%a5u, %%acc0\n" + "mac.w %%d5l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d6u, %%a5u, %%acc0\n" + "mac.w %%d6l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d7u, %%a5u, %%acc0\n" + "mac.w %%d7l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "movem.l (96,%[filt]), %%d0-%%d7\n" + "mac.w %%d0u, %%a5u, %%acc0\n" + "mac.w %%d0l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d1u, %%a5u, %%acc0\n" + "mac.w %%d1l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d2u, %%a5u, %%acc0\n" + "mac.w %%d2l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d3u, %%a5u, %%acc0\n" + "mac.w %%d3l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d4u, %%a5u, %%acc0\n" + "mac.w %%d4l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d5u, %%a5u, %%acc0\n" + "mac.w %%d5l, %%a5l, (%[yint])+, %%a5, %%acc0\n" + "mac.w %%d6u, %%a5u, %%acc0\n" + "mac.w %%d6l, %%a5l, (%[yint]) , %%a5, %%acc0\n" + "mac.w %%d7u, %%a5u, %%acc0\n" + "mac.w %%d7l, %%a5l, %%acc0\n" + "lea.l (-31*4, %[yint]), %[yint]\n" /* wrap yint back to start */ + "movclr.l %%acc0, %[tmp]" + : [tmp] "=r" (tmp) : [filt] "a" (filt), [yint] "a" (y_int) + : "d0", "d1", "d2", "d3", "d4", "d5", "d6", "d7", "a5" ); + } +#else + for(j=64, tmp=0; j--; ) + tmp += (long)filt[j] * (long)y_int[j]; +#endif + s[i] = (tmp + 16384) >> 15; + } +} + +static int find_bitrate_index(int bitrate) +{ + static long mpeg1[15] = {0,32,40,48,56,64,80,96,112,128,160,192,224,256,320}; + int i; + + for(i=0; i<15; i++) + if(bitrate == mpeg1[i]) + return i; + + return -1; +} + +static int find_samplerate_index(long freq) +{ + static long mpeg1[3] = {44100, 48000, 32000}; + int i; + + for(i=0; i<3; i++) + if(freq == mpeg1[i]) + return i; + + return -1; +} + +void init_mp3_encoder_engine(bool stereo, int quality) +{ + /* keep in sync with rec_quality_info_afmt in id3.h/.c */ + static int bitr_s[9] = { 64, 96, 128, 160, 192, 224, 320, 64, 64 }; + static int bitr_m[9] = { 64, 96, 128, 160, 160, 160, 160, 64, 64 }; + uint32 avg_byte_per_frame; + + cfg.byte_order = order_bigEndian; + cfg.mpg.type = 1; + cfg.samplerate = 44100; + cfg.channels = stereo ? 2 : 1; + cfg.mpg.mode = stereo ? 0 : 3; /* 0=stereo, 3=mono */ + cfg.mpg.bitrate = stereo ? bitr_s[quality] : bitr_m[quality]; + cfg.mpg.bitrate_index = find_bitrate_index(cfg.mpg.bitrate); + cfg.mpg.smprate_index = find_samplerate_index(cfg.samplerate); + + memset(x_int0 , 0 , sizeof(x_int0 )); + memset(x_int1 , 0 , sizeof(x_int1 )); + memset(y_int , 0 , sizeof(y_int )); + memset(mdct_freq , 0 , sizeof(mdct_freq )); + memset(enc_data , 0 , sizeof(enc_data )); + memset(mdct_in , 0 , sizeof(mdct_in )); + memset(sb_sample , 0 , sizeof(sb_sample )); + memset(&CodedData , 0 , sizeof(CodedData )); + memcpy(scalefac, sfBand[cfg.mpg.smprate_index + 3*cfg.mpg.type], sizeof(scalefac)); + memcpy(ca_int , ca_int_const , sizeof(ca_int )); + memcpy(cs_int , cs_int_const , sizeof(cs_int )); + memcpy(win_int , win_int_const , sizeof(win_int )); + memcpy(filter_int , filter_int_const , sizeof(filter_int )); + memcpy(enwindow_int, enwindow_int_const, sizeof(enwindow_int)); + memcpy(int2idx , int2idx_const , sizeof(int2idx )); + memcpy(ht_count1 , ht_count1_const , sizeof(ht_count1 )); + memcpy( t1HB , t1HB_const , sizeof(t1HB )); + memcpy( t2HB , t2HB_const , sizeof(t2HB )); + memcpy( t3HB , t3HB_const , sizeof(t3HB )); + memcpy( t5HB , t5HB_const , sizeof(t5HB )); + memcpy( t6HB , t6HB_const , sizeof(t6HB )); + memcpy( t7HB , t7HB_const , sizeof(t7HB )); + memcpy( t8HB , t8HB_const , sizeof(t8HB )); + memcpy( t9HB , t9HB_const , sizeof(t9HB )); + memcpy(t10HB , t10HB_const , sizeof(t10HB )); + memcpy(t11HB , t11HB_const , sizeof(t11HB )); + memcpy(t12HB , t12HB_const , sizeof(t12HB )); + memcpy(t13HB , t13HB_const , sizeof(t13HB )); + memcpy(t15HB , t15HB_const , sizeof(t15HB )); + memcpy(t16HB , t16HB_const , sizeof(t16HB )); + memcpy(t24HB , t24HB_const , sizeof(t24HB )); + memcpy( t1l , t1l_const , sizeof(t1l )); + memcpy( t2l , t2l_const , sizeof(t2l )); + memcpy( t3l , t3l_const , sizeof(t3l )); + memcpy( t5l , t5l_const , sizeof(t5l )); + memcpy( t6l , t6l_const , sizeof(t6l )); + memcpy( t7l , t7l_const , sizeof(t7l )); + memcpy( t8l , t8l_const , sizeof(t8l )); + memcpy( t9l , t9l_const , sizeof(t9l )); + memcpy(t10l , t10l_const , sizeof(t10l )); + memcpy(t11l , t11l_const , sizeof(t11l )); + memcpy(t12l , t12l_const , sizeof(t12l )); + memcpy(t13l , t13l_const , sizeof(t13l )); + memcpy(t15l , t15l_const , sizeof(t15l )); + memcpy(t16l , t16l_const , sizeof(t16l )); + memcpy(t24l , t24l_const , sizeof(t24l )); + memcpy(ht , ht_const , sizeof(ht )); + + /* I don't know, wether this is really necessary */ + ht[ 0].table = NULL; ht[ 0].hlen = NULL;// Apparently not used + ht[ 1].table = t1HB; ht[ 1].hlen = t1l; + ht[ 2].table = t2HB; ht[ 2].hlen = t2l; + ht[ 3].table = t3HB; ht[ 3].hlen = t3l; + ht[ 4].table = NULL; ht[ 4].hlen = NULL;// Apparently not used + ht[ 5].table = t5HB; ht[ 5].hlen = t5l; + ht[ 6].table = t6HB; ht[ 6].hlen = t6l; + ht[ 7].table = t7HB; ht[ 7].hlen = t7l; + ht[ 8].table = t8HB; ht[ 8].hlen = t8l; + ht[ 9].table = t9HB; ht[ 9].hlen = t9l; + ht[10].table = t10HB; ht[10].hlen = t10l; + ht[11].table = t11HB; ht[11].hlen = t11l; + ht[12].table = t12HB; ht[12].hlen = t12l; + ht[13].table = t13HB; ht[13].hlen = t13l; + ht[14].table = NULL; ht[14].hlen = NULL;// Apparently not used + ht[15].table = t15HB; ht[15].hlen = t15l; + ht[16].table = t16HB; ht[16].hlen = t16l; + ht[17].table = t16HB; ht[17].hlen = t16l; + ht[18].table = t16HB; ht[18].hlen = t16l; + ht[19].table = t16HB; ht[19].hlen = t16l; + ht[20].table = t16HB; ht[20].hlen = t16l; + ht[21].table = t16HB; ht[21].hlen = t16l; + ht[22].table = t16HB; ht[22].hlen = t16l; + ht[23].table = t16HB; ht[23].hlen = t16l; + ht[24].table = t24HB; ht[24].hlen = t24l; + ht[25].table = t24HB; ht[25].hlen = t24l; + ht[26].table = t24HB; ht[26].hlen = t24l; + ht[27].table = t24HB; ht[27].hlen = t24l; + ht[28].table = t24HB; ht[28].hlen = t24l; + ht[29].table = t24HB; ht[29].hlen = t24l; + ht[30].table = t24HB; ht[30].hlen = t24l; + ht[31].table = t24HB; ht[31].hlen = t24l; + + x_int[0] = x_int0; + x_int[1] = x_int1; + +#ifndef SIMULATOR + if(((long)x_int0 | (long)x_int1) & 0x7ff) + return; /* both arrays must be aligned to 0x800 boundary */ +#endif + + if(cfg.channels == 1) + cfg.sideinfo_len = 32 + 136; + else + cfg.sideinfo_len = 32 + 256; + + /* Set initial step size */ + cfg.cod_info[0][0].quantizerStepSize = 0x10; + cfg.cod_info[0][1].quantizerStepSize = 0x10; + cfg.cod_info[1][0].quantizerStepSize = 0x10; + cfg.cod_info[1][1].quantizerStepSize = 0x10; + + /* Figure average number of 'byte' per frame. */ + avg_byte_per_frame = (uint32)(SAMP_PER_FRAME * 8000 * cfg.mpg.bitrate) / cfg.samplerate; + cfg.byte_per_frame = avg_byte_per_frame / 64; + cfg.frac_per_frame = avg_byte_per_frame % 64; + cfg.slot_lag = 0; +} + +/* this is the codec entry point */ +enum codec_status codec_start(struct codec_api* api) +{ + int i, off=0, gr, channel; + long *buffer; + int chunk_size, num_chunks; + int enc_buffer_size; + int enc_quality; + uint32 *mp3_chunk_ptr; + bool cpu_boosted = true; /* start boosted */ + + /* Generic codec initialisation */ + ci = api; + + if(ci->enc_get_inputs == NULL || + ci->enc_set_parameters == NULL || + ci->enc_alloc_chunk == NULL || + ci->enc_free_chunk == NULL || + ci->enc_wavbuf_near_empty == NULL || + ci->enc_get_wav_data == NULL || + ci->enc_set_header_callback == NULL ) + return CODEC_ERROR; + + ci->cpu_boost(true); + + *ci->enc_set_header_callback = NULL; + ci->enc_get_inputs(&enc_buffer_size, &enc_channels, &enc_quality); + + init_mp3_encoder_engine(enc_channels == 2, enc_quality); + + /* must be 4byte aligned */ + chunk_size = (sizeof(long) + cfg.byte_per_frame + 1 + 3) & ~3; + num_chunks = enc_buffer_size / chunk_size; + + /* inform the main program about the buffer dimensions */ + ci->enc_set_parameters(chunk_size, num_chunks, SAMP_PER_FRAME, + NULL, 0, AFMT_MPA_L3); + +#ifdef CPU_COLDFIRE + asm volatile ("move.l #0, %macsr"); /* integer mode */ +#endif + + /* main application waits for this flag during encoder loading */ + ci->enc_codec_loaded = true; + + /* main encoding loop */ + while(!ci->stop_codec) + { + while((buffer = (long*)ci->enc_get_wav_data(SAMP_PER_FRAME*4)) != NULL) + { + if(ci->stop_codec) + break; + + if(ci->enc_wavbuf_near_empty() == 0) + { + if(!cpu_boosted) + { + ci->cpu_boost(true); + cpu_boosted = true; + } + } + + /* encode one mp3 frame in this loop */ + CodedData.bitpos = 0; + memset(CodedData.bbuf, 0, sizeof(CodedData.bbuf)); + + if((cfg.slot_lag += cfg.frac_per_frame) >= 64) + { /* Padding for this frame */ + cfg.slot_lag -= 64; + cfg.mpg.padding = 1; + } + else + cfg.mpg.padding = 0; + + cfg.mpg.bits_per_frame = 8 * (cfg.byte_per_frame + cfg.mpg.padding); + cfg.mean_bits = (cfg.mpg.bits_per_frame - cfg.sideinfo_len) >> 1; + + /* polyphase filtering */ + for(gr=0; gr<2; gr++) + { + for(i=0; i<18; i++) + { + fill_subband(buffer, off); + + for(channel=cfg.channels; channel--; ) + filter_subband(&sb_sample[channel][gr+1][i][0], off, channel); + + buffer += 32; + off = (off + 480) & (HAN_SIZE-1); /* offset is modulo HAN_SIZE */ + } + } + + mdct_sub_int(sb_sample, mdct_freq); + + /* bit and noise allocation */ + iteration_loop(mdct_freq, cfg.cod_info, cfg.mean_bits); + + /* write the frame to the bitstream */ + format_bitstream(enc_data, cfg.cod_info, mdct_freq); + + /* allocate mp3 chunk, set chunk size, copy chunk to enc_buffer */ + mp3_chunk_ptr = (uint32*)ci->enc_alloc_chunk(); + mp3_chunk_ptr[0] = (CodedData.bitpos + 7) >> 3; + memcpy(&mp3_chunk_ptr[1], CodedData.bbuf, mp3_chunk_ptr[0]); + ci->enc_free_chunk(); + ci->yield(); + } + + if(ci->enc_wavbuf_near_empty()) + { + if(cpu_boosted) + { + ci->cpu_boost(false); + cpu_boosted = false; + } + } + ci->yield(); + } + + if(cpu_boosted) /* set initial boost state */ + ci->cpu_boost(false); + + /* reset parameters to initial state */ + ci->enc_set_parameters(0, 0, 0, 0, 0, 0); + + /* main application waits for this flag during encoder removing */ + ci->enc_codec_loaded = false; + + return CODEC_OK; +} +#endif |