diff options
Diffstat (limited to 'faad2/src/libfaad/specrec.c')
| -rw-r--r-- | faad2/src/libfaad/specrec.c | 1330 |
1 files changed, 0 insertions, 1330 deletions
diff --git a/faad2/src/libfaad/specrec.c b/faad2/src/libfaad/specrec.c deleted file mode 100644 index 478c246..0000000 --- a/faad2/src/libfaad/specrec.c +++ /dev/null @@ -1,1330 +0,0 @@ -/*
-** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
-** Copyright (C) 2003-2005 M. Bakker, Nero AG, http://www.nero.com
-**
-** This program is free software; you can redistribute it and/or modify
-** it under the terms of the GNU General Public License as published by
-** the Free Software Foundation; either version 2 of the License, or
-** (at your option) any later version.
-**
-** This program 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 General Public License for more details.
-**
-** You should have received a copy of the GNU General Public License
-** along with this program; if not, write to the Free Software
-** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-**
-** Any non-GPL usage of this software or parts of this software is strictly
-** forbidden.
-**
-** The "appropriate copyright message" mentioned in section 2c of the GPLv2
-** must read: "Code from FAAD2 is copyright (c) Nero AG, www.nero.com"
-**
-** Commercial non-GPL licensing of this software is possible.
-** For more info contact Nero AG through Mpeg4AAClicense@nero.com.
-**
-** $Id: specrec.c,v 1.62 2009/01/26 23:51:15 menno Exp $
-**/
-
-/*
- Spectral reconstruction:
- - grouping/sectioning
- - inverse quantization
- - applying scalefactors
-*/
-
-#include "common.h"
-#include "structs.h"
-
-#include <string.h>
-#include <stdlib.h>
-#include "specrec.h"
-#include "filtbank.h"
-#include "syntax.h"
-#include "iq_table.h"
-#include "ms.h"
-#include "is.h"
-#include "pns.h"
-#include "tns.h"
-#include "drc.h"
-#include "lt_predict.h"
-#include "ic_predict.h"
-#ifdef SSR_DEC
-#include "ssr.h"
-#include "ssr_fb.h"
-#endif
-
-
-/* static function declarations */
-static uint8_t quant_to_spec(NeAACDecStruct *hDecoder,
- ic_stream *ics, int16_t *quant_data,
- real_t *spec_data, uint16_t frame_len);
-
-
-#ifdef LD_DEC
-ALIGN static const uint8_t num_swb_512_window[] =
-{
- 0, 0, 0, 36, 36, 37, 31, 31, 0, 0, 0, 0
-};
-ALIGN static const uint8_t num_swb_480_window[] =
-{
- 0, 0, 0, 35, 35, 37, 30, 30, 0, 0, 0, 0
-};
-#endif
-
-ALIGN static const uint8_t num_swb_960_window[] =
-{
- 40, 40, 45, 49, 49, 49, 46, 46, 42, 42, 42, 40
-};
-
-ALIGN static const uint8_t num_swb_1024_window[] =
-{
- 41, 41, 47, 49, 49, 51, 47, 47, 43, 43, 43, 40
-};
-
-ALIGN static const uint8_t num_swb_128_window[] =
-{
- 12, 12, 12, 14, 14, 14, 15, 15, 15, 15, 15, 15
-};
-
-ALIGN static const uint16_t swb_offset_1024_96[] =
-{
- 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
-};
-
-ALIGN static const uint16_t swb_offset_128_96[] =
-{
- 0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 92, 128
-};
-
-ALIGN static const uint16_t swb_offset_1024_64[] =
-{
- 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
-};
-
-ALIGN static const uint16_t swb_offset_128_64[] =
-{
- 0, 4, 8, 12, 16, 20, 24, 32, 40, 48, 64, 92, 128
-};
-
-ALIGN static const uint16_t swb_offset_1024_48[] =
-{
- 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
-};
-
-#ifdef LD_DEC
-ALIGN static const uint16_t swb_offset_512_48[] =
-{
- 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 68, 76, 84,
- 92, 100, 112, 124, 136, 148, 164, 184, 208, 236, 268, 300, 332, 364, 396,
- 428, 460, 512
-};
-
-ALIGN static const uint16_t swb_offset_480_48[] =
-{
- 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, 272, 304, 336, 368, 400,
- 432, 480
-};
-#endif
-
-ALIGN static const uint16_t swb_offset_128_48[] =
-{
- 0, 4, 8, 12, 16, 20, 28, 36, 44, 56, 68, 80, 96, 112, 128
-};
-
-ALIGN static const uint16_t swb_offset_1024_32[] =
-{
- 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
-};
-
-#ifdef LD_DEC
-ALIGN static const uint16_t swb_offset_512_32[] =
-{
- 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 64, 72, 80,
- 88, 96, 108, 120, 132, 144, 160, 176, 192, 212, 236, 260, 288, 320, 352,
- 384, 416, 448, 480, 512
-};
-
-ALIGN static const uint16_t swb_offset_480_32[] =
-{
- 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52, 56, 60, 64, 72, 80,
- 88, 96, 104, 112, 124, 136, 148, 164, 180, 200, 224, 256, 288, 320, 352,
- 384, 416, 448, 480
-};
-#endif
-
-ALIGN static const uint16_t swb_offset_1024_24[] =
-{
- 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
-};
-
-#ifdef LD_DEC
-ALIGN static const uint16_t swb_offset_512_24[] =
-{
- 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 52, 60, 68,
- 80, 92, 104, 120, 140, 164, 192, 224, 256, 288, 320, 352, 384, 416,
- 448, 480, 512
-};
-
-ALIGN static const uint16_t swb_offset_480_24[] =
-{
- 0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 52, 60, 68, 80, 92, 104, 120,
- 140, 164, 192, 224, 256, 288, 320, 352, 384, 416, 448, 480
-};
-#endif
-
-ALIGN static const uint16_t swb_offset_128_24[] =
-{
- 0, 4, 8, 12, 16, 20, 24, 28, 36, 44, 52, 64, 76, 92, 108, 128
-};
-
-ALIGN static const uint16_t swb_offset_1024_16[] =
-{
- 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
-};
-
-ALIGN static const uint16_t swb_offset_128_16[] =
-{
- 0, 4, 8, 12, 16, 20, 24, 28, 32, 40, 48, 60, 72, 88, 108, 128
-};
-
-ALIGN static const uint16_t swb_offset_1024_8[] =
-{
- 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
-};
-
-ALIGN static const uint16_t swb_offset_128_8[] =
-{
- 0, 4, 8, 12, 16, 20, 24, 28, 36, 44, 52, 60, 72, 88, 108, 128
-};
-
-ALIGN static const uint16_t *swb_offset_1024_window[] =
-{
- swb_offset_1024_96, /* 96000 */
- swb_offset_1024_96, /* 88200 */
- swb_offset_1024_64, /* 64000 */
- swb_offset_1024_48, /* 48000 */
- swb_offset_1024_48, /* 44100 */
- swb_offset_1024_32, /* 32000 */
- swb_offset_1024_24, /* 24000 */
- swb_offset_1024_24, /* 22050 */
- swb_offset_1024_16, /* 16000 */
- swb_offset_1024_16, /* 12000 */
- swb_offset_1024_16, /* 11025 */
- swb_offset_1024_8 /* 8000 */
-};
-
-#ifdef LD_DEC
-ALIGN static const uint16_t *swb_offset_512_window[] =
-{
- 0, /* 96000 */
- 0, /* 88200 */
- 0, /* 64000 */
- swb_offset_512_48, /* 48000 */
- swb_offset_512_48, /* 44100 */
- swb_offset_512_32, /* 32000 */
- swb_offset_512_24, /* 24000 */
- swb_offset_512_24, /* 22050 */
- 0, /* 16000 */
- 0, /* 12000 */
- 0, /* 11025 */
- 0 /* 8000 */
-};
-
-ALIGN static const uint16_t *swb_offset_480_window[] =
-{
- 0, /* 96000 */
- 0, /* 88200 */
- 0, /* 64000 */
- swb_offset_480_48, /* 48000 */
- swb_offset_480_48, /* 44100 */
- swb_offset_480_32, /* 32000 */
- swb_offset_480_24, /* 24000 */
- swb_offset_480_24, /* 22050 */
- 0, /* 16000 */
- 0, /* 12000 */
- 0, /* 11025 */
- 0 /* 8000 */
-};
-#endif
-
-ALIGN static const uint16_t *swb_offset_128_window[] =
-{
- swb_offset_128_96, /* 96000 */
- swb_offset_128_96, /* 88200 */
- swb_offset_128_64, /* 64000 */
- swb_offset_128_48, /* 48000 */
- swb_offset_128_48, /* 44100 */
- swb_offset_128_48, /* 32000 */
- swb_offset_128_24, /* 24000 */
- swb_offset_128_24, /* 22050 */
- swb_offset_128_16, /* 16000 */
- swb_offset_128_16, /* 12000 */
- swb_offset_128_16, /* 11025 */
- swb_offset_128_8 /* 8000 */
-};
-
-#define bit_set(A, B) ((A) & (1<<(B)))
-
-/* 4.5.2.3.4 */
-/*
- - determine the number of windows in a window_sequence named num_windows
- - determine the number of window_groups named num_window_groups
- - determine the number of windows in each group named window_group_length[g]
- - determine the total number of scalefactor window bands named num_swb for
- the actual window type
- - determine swb_offset[swb], the offset of the first coefficient in
- scalefactor window band named swb of the window actually used
- - determine sect_sfb_offset[g][section],the offset of the first coefficient
- in section named section. This offset depends on window_sequence and
- scale_factor_grouping and is needed to decode the spectral_data().
-*/
-uint8_t window_grouping_info(NeAACDecStruct *hDecoder, ic_stream *ics)
-{
- uint8_t i, g;
-
- uint8_t sf_index = hDecoder->sf_index;
-
- switch (ics->window_sequence) {
- case ONLY_LONG_SEQUENCE:
- case LONG_START_SEQUENCE:
- case LONG_STOP_SEQUENCE:
- ics->num_windows = 1;
- ics->num_window_groups = 1;
- ics->window_group_length[ics->num_window_groups-1] = 1;
-#ifdef LD_DEC
- if (hDecoder->object_type == LD)
- {
- if (hDecoder->frameLength == 512)
- ics->num_swb = num_swb_512_window[sf_index];
- else /* if (hDecoder->frameLength == 480) */
- ics->num_swb = num_swb_480_window[sf_index];
- } else {
-#endif
- if (hDecoder->frameLength == 1024)
- ics->num_swb = num_swb_1024_window[sf_index];
- else /* if (hDecoder->frameLength == 960) */
- ics->num_swb = num_swb_960_window[sf_index];
-#ifdef LD_DEC
- }
-#endif
-
- if (ics->max_sfb > ics->num_swb)
- {
- return 32;
- }
-
- /* preparation of sect_sfb_offset for long blocks */
- /* also copy the last value! */
-#ifdef LD_DEC
- if (hDecoder->object_type == LD)
- {
- if (hDecoder->frameLength == 512)
- {
- for (i = 0; i < ics->num_swb; i++)
- {
- ics->sect_sfb_offset[0][i] = swb_offset_512_window[sf_index][i];
- ics->swb_offset[i] = swb_offset_512_window[sf_index][i];
- }
- } else /* if (hDecoder->frameLength == 480) */ {
- for (i = 0; i < ics->num_swb; i++)
- {
- ics->sect_sfb_offset[0][i] = swb_offset_480_window[sf_index][i];
- ics->swb_offset[i] = swb_offset_480_window[sf_index][i];
- }
- }
- ics->sect_sfb_offset[0][ics->num_swb] = hDecoder->frameLength;
- ics->swb_offset[ics->num_swb] = hDecoder->frameLength;
- ics->swb_offset_max = hDecoder->frameLength;
- } else {
-#endif
- for (i = 0; i < ics->num_swb; i++)
- {
- ics->sect_sfb_offset[0][i] = swb_offset_1024_window[sf_index][i];
- ics->swb_offset[i] = swb_offset_1024_window[sf_index][i];
- }
- ics->sect_sfb_offset[0][ics->num_swb] = hDecoder->frameLength;
- ics->swb_offset[ics->num_swb] = hDecoder->frameLength;
- ics->swb_offset_max = hDecoder->frameLength;
-#ifdef LD_DEC
- }
-#endif
- return 0;
- case EIGHT_SHORT_SEQUENCE:
- ics->num_windows = 8;
- ics->num_window_groups = 1;
- ics->window_group_length[ics->num_window_groups-1] = 1;
- ics->num_swb = num_swb_128_window[sf_index];
-
- if (ics->max_sfb > ics->num_swb)
- {
- return 32;
- }
-
- for (i = 0; i < ics->num_swb; i++)
- ics->swb_offset[i] = swb_offset_128_window[sf_index][i];
- ics->swb_offset[ics->num_swb] = hDecoder->frameLength/8;
- ics->swb_offset_max = hDecoder->frameLength/8;
-
- for (i = 0; i < ics->num_windows-1; i++) {
- if (bit_set(ics->scale_factor_grouping, 6-i) == 0)
- {
- ics->num_window_groups += 1;
- ics->window_group_length[ics->num_window_groups-1] = 1;
- } else {
- ics->window_group_length[ics->num_window_groups-1] += 1;
- }
- }
-
- /* preparation of sect_sfb_offset for short blocks */
- for (g = 0; g < ics->num_window_groups; g++)
- {
- uint16_t width;
- uint8_t sect_sfb = 0;
- uint16_t offset = 0;
-
- for (i = 0; i < ics->num_swb; i++)
- {
- if (i+1 == ics->num_swb)
- {
- width = (hDecoder->frameLength/8) - swb_offset_128_window[sf_index][i];
- } else {
- width = swb_offset_128_window[sf_index][i+1] -
- swb_offset_128_window[sf_index][i];
- }
- width *= ics->window_group_length[g];
- ics->sect_sfb_offset[g][sect_sfb++] = offset;
- offset += width;
- }
- ics->sect_sfb_offset[g][sect_sfb] = offset;
- }
- return 0;
- default:
- return 32;
- }
-}
-
-/* iquant() *
-/* output = sign(input)*abs(input)^(4/3) */
-/**/
-static INLINE real_t iquant(int16_t q, const real_t *tab, uint8_t *error)
-{
-#ifdef FIXED_POINT
-/* For FIXED_POINT the iq_table is prescaled by 3 bits (iq_table[]/8) */
-/* BIG_IQ_TABLE allows you to use the full 8192 value table, if this is not
- * defined a 1026 value table and interpolation will be used
- */
-#ifndef BIG_IQ_TABLE
- static const real_t errcorr[] = {
- REAL_CONST(0), REAL_CONST(1.0/8.0), REAL_CONST(2.0/8.0), REAL_CONST(3.0/8.0),
- REAL_CONST(4.0/8.0), REAL_CONST(5.0/8.0), REAL_CONST(6.0/8.0), REAL_CONST(7.0/8.0),
- REAL_CONST(0)
- };
- real_t x1, x2;
-#endif
- int16_t sgn = 1;
-
- if (q < 0)
- {
- q = -q;
- sgn = -1;
- }
-
- if (q < IQ_TABLE_SIZE)
- {
-//#define IQUANT_PRINT
-#ifdef IQUANT_PRINT
- //printf("0x%.8X\n", sgn * tab[q]);
- printf("%d\n", sgn * tab[q]);
-#endif
- return sgn * tab[q];
- }
-
-#ifndef BIG_IQ_TABLE
- if (q >= 8192)
- {
- *error = 17;
- return 0;
- }
-
- /* linear interpolation */
- x1 = tab[q>>3];
- x2 = tab[(q>>3) + 1];
- return sgn * 16 * (MUL_R(errcorr[q&7],(x2-x1)) + x1);
-#else
- *error = 17;
- return 0;
-#endif
-
-#else
- if (q < 0)
- {
- /* tab contains a value for all possible q [0,8192] */
- if (-q < IQ_TABLE_SIZE)
- return -tab[-q];
-
- *error = 17;
- return 0;
- } else {
- /* tab contains a value for all possible q [0,8192] */
- if (q < IQ_TABLE_SIZE)
- return tab[q];
-
- *error = 17;
- return 0;
- }
-#endif
-}
-
-#ifndef FIXED_POINT
-ALIGN static const real_t pow2sf_tab[] = {
- 2.9802322387695313E-008, 5.9604644775390625E-008, 1.1920928955078125E-007,
- 2.384185791015625E-007, 4.76837158203125E-007, 9.5367431640625E-007,
- 1.9073486328125E-006, 3.814697265625E-006, 7.62939453125E-006,
- 1.52587890625E-005, 3.0517578125E-005, 6.103515625E-005,
- 0.0001220703125, 0.000244140625, 0.00048828125,
- 0.0009765625, 0.001953125, 0.00390625,
- 0.0078125, 0.015625, 0.03125,
- 0.0625, 0.125, 0.25,
- 0.5, 1.0, 2.0,
- 4.0, 8.0, 16.0, 32.0,
- 64.0, 128.0, 256.0,
- 512.0, 1024.0, 2048.0,
- 4096.0, 8192.0, 16384.0,
- 32768.0, 65536.0, 131072.0,
- 262144.0, 524288.0, 1048576.0,
- 2097152.0, 4194304.0, 8388608.0,
- 16777216.0, 33554432.0, 67108864.0,
- 134217728.0, 268435456.0, 536870912.0,
- 1073741824.0, 2147483648.0, 4294967296.0,
- 8589934592.0, 17179869184.0, 34359738368.0,
- 68719476736.0, 137438953472.0, 274877906944.0
-};
-#endif
-
-/* quant_to_spec: perform dequantisation and scaling
- * and in case of short block it also does the deinterleaving
- */
-/*
- For ONLY_LONG_SEQUENCE windows (num_window_groups = 1,
- window_group_length[0] = 1) the spectral data is in ascending spectral
- order.
- For the EIGHT_SHORT_SEQUENCE window, the spectral order depends on the
- grouping in the following manner:
- - Groups are ordered sequentially
- - Within a group, a scalefactor band consists of the spectral data of all
- grouped SHORT_WINDOWs for the associated scalefactor window band. To
- clarify via example, the length of a group is in the range of one to eight
- SHORT_WINDOWs.
- - If there are eight groups each with length one (num_window_groups = 8,
- window_group_length[0..7] = 1), the result is a sequence of eight spectra,
- each in ascending spectral order.
- - If there is only one group with length eight (num_window_groups = 1,
- window_group_length[0] = 8), the result is that spectral data of all eight
- SHORT_WINDOWs is interleaved by scalefactor window bands.
- - Within a scalefactor window band, the coefficients are in ascending
- spectral order.
-*/
-static uint8_t quant_to_spec(NeAACDecStruct *hDecoder,
- ic_stream *ics, int16_t *quant_data,
- real_t *spec_data, uint16_t frame_len)
-{
- ALIGN static const real_t pow2_table[] =
- {
- COEF_CONST(1.0),
- COEF_CONST(1.1892071150027210667174999705605), /* 2^0.25 */
- COEF_CONST(1.4142135623730950488016887242097), /* 2^0.5 */
- COEF_CONST(1.6817928305074290860622509524664) /* 2^0.75 */
- };
- const real_t *tab = iq_table;
-
- uint8_t g, sfb, win;
- uint16_t width, bin, k, gindex, wa, wb;
- uint8_t error = 0; /* Init error flag */
-#ifndef FIXED_POINT
- real_t scf;
-#endif
-
- k = 0;
- gindex = 0;
-
- for (g = 0; g < ics->num_window_groups; g++)
- {
- uint16_t j = 0;
- uint16_t gincrease = 0;
- uint16_t win_inc = ics->swb_offset[ics->num_swb];
-
- for (sfb = 0; sfb < ics->num_swb; sfb++)
- {
- int32_t exp, frac;
-
- width = ics->swb_offset[sfb+1] - ics->swb_offset[sfb];
-
- /* this could be scalefactor for IS or PNS, those can be negative or bigger then 255 */
- /* just ignore them */
- if (ics->scale_factors[g][sfb] < 0 || ics->scale_factors[g][sfb] > 255)
- {
- exp = 0;
- frac = 0;
- } else {
- /* ics->scale_factors[g][sfb] must be between 0 and 255 */
- exp = (ics->scale_factors[g][sfb] /* - 100 */) >> 2;
- /* frac must always be > 0 */
- frac = (ics->scale_factors[g][sfb] /* - 100 */) & 3;
- }
-
-#ifdef FIXED_POINT
- exp -= 25;
- /* IMDCT pre-scaling */
- if (hDecoder->object_type == LD)
- {
- exp -= 6 /*9*/;
- } else {
- if (ics->window_sequence == EIGHT_SHORT_SEQUENCE)
- exp -= 4 /*7*/;
- else
- exp -= 7 /*10*/;
- }
-#endif
-
- wa = gindex + j;
-
-#ifndef FIXED_POINT
- scf = pow2sf_tab[exp/*+25*/] * pow2_table[frac];
-#endif
-
- for (win = 0; win < ics->window_group_length[g]; win++)
- {
- for (bin = 0; bin < width; bin += 4)
- {
-#ifndef FIXED_POINT
- wb = wa + bin;
-
- spec_data[wb+0] = iquant(quant_data[k+0], tab, &error) * scf;
- spec_data[wb+1] = iquant(quant_data[k+1], tab, &error) * scf;
- spec_data[wb+2] = iquant(quant_data[k+2], tab, &error) * scf;
- spec_data[wb+3] = iquant(quant_data[k+3], tab, &error) * scf;
-
-#else
- real_t iq0 = iquant(quant_data[k+0], tab, &error);
- real_t iq1 = iquant(quant_data[k+1], tab, &error);
- real_t iq2 = iquant(quant_data[k+2], tab, &error);
- real_t iq3 = iquant(quant_data[k+3], tab, &error);
-
- wb = wa + bin;
-
- if (exp < 0)
- {
- spec_data[wb+0] = iq0 >>= -exp;
- spec_data[wb+1] = iq1 >>= -exp;
- spec_data[wb+2] = iq2 >>= -exp;
- spec_data[wb+3] = iq3 >>= -exp;
- } else {
- spec_data[wb+0] = iq0 <<= exp;
- spec_data[wb+1] = iq1 <<= exp;
- spec_data[wb+2] = iq2 <<= exp;
- spec_data[wb+3] = iq3 <<= exp;
- }
- if (frac != 0)
- {
- spec_data[wb+0] = MUL_C(spec_data[wb+0],pow2_table[frac]);
- spec_data[wb+1] = MUL_C(spec_data[wb+1],pow2_table[frac]);
- spec_data[wb+2] = MUL_C(spec_data[wb+2],pow2_table[frac]);
- spec_data[wb+3] = MUL_C(spec_data[wb+3],pow2_table[frac]);
- }
-
-//#define SCFS_PRINT
-#ifdef SCFS_PRINT
- printf("%d\n", spec_data[gindex+(win*win_inc)+j+bin+0]);
- printf("%d\n", spec_data[gindex+(win*win_inc)+j+bin+1]);
- printf("%d\n", spec_data[gindex+(win*win_inc)+j+bin+2]);
- printf("%d\n", spec_data[gindex+(win*win_inc)+j+bin+3]);
- //printf("0x%.8X\n", spec_data[gindex+(win*win_inc)+j+bin+0]);
- //printf("0x%.8X\n", spec_data[gindex+(win*win_inc)+j+bin+1]);
- //printf("0x%.8X\n", spec_data[gindex+(win*win_inc)+j+bin+2]);
- //printf("0x%.8X\n", spec_data[gindex+(win*win_inc)+j+bin+3]);
-#endif
-#endif
-
- gincrease += 4;
- k += 4;
- }
- wa += win_inc;
- }
- j += width;
- }
- gindex += gincrease;
- }
-
- return error;
-}
-
-static uint8_t allocate_single_channel(NeAACDecStruct *hDecoder, uint8_t channel,
- uint8_t output_channels)
-{
- int mul = 1;
-
-#ifdef MAIN_DEC
- /* MAIN object type prediction */
- if (hDecoder->object_type == MAIN)
- {
- /* allocate the state only when needed */
- if (hDecoder->pred_stat[channel] != NULL)
- {
- faad_free(hDecoder->pred_stat[channel]);
- hDecoder->pred_stat[channel] = NULL;
- }
-
- hDecoder->pred_stat[channel] = (pred_state*)faad_malloc(hDecoder->frameLength * sizeof(pred_state));
- reset_all_predictors(hDecoder->pred_stat[channel], hDecoder->frameLength);
- }
-#endif
-
-#ifdef LTP_DEC
- if (is_ltp_ot(hDecoder->object_type))
- {
- /* allocate the state only when needed */
- if (hDecoder->lt_pred_stat[channel] != NULL)
- {
- faad_free(hDecoder->lt_pred_stat[channel]);
- hDecoder->lt_pred_stat[channel] = NULL;
- }
-
- hDecoder->lt_pred_stat[channel] = (int16_t*)faad_malloc(hDecoder->frameLength*4 * sizeof(int16_t));
- memset(hDecoder->lt_pred_stat[channel], 0, hDecoder->frameLength*4 * sizeof(int16_t));
- }
-#endif
-
- if (hDecoder->time_out[channel] != NULL)
- {
- faad_free(hDecoder->time_out[channel]);
- hDecoder->time_out[channel] = NULL;
- }
-
- {
- mul = 1;
-#ifdef SBR_DEC
- hDecoder->sbr_alloced[hDecoder->fr_ch_ele] = 0;
- if ((hDecoder->sbr_present_flag == 1) || (hDecoder->forceUpSampling == 1))
- {
- /* SBR requires 2 times as much output data */
- mul = 2;
- hDecoder->sbr_alloced[hDecoder->fr_ch_ele] = 1;
- }
-#endif
- hDecoder->time_out[channel] = (real_t*)faad_malloc(mul*hDecoder->frameLength*sizeof(real_t));
- memset(hDecoder->time_out[channel], 0, mul*hDecoder->frameLength*sizeof(real_t));
- }
-
-#if (defined(PS_DEC) || defined(DRM_PS))
- if (output_channels == 2)
- {
- if (hDecoder->time_out[channel+1] != NULL)
- {
- faad_free(hDecoder->time_out[channel+1]);
- hDecoder->time_out[channel+1] = NULL;
- }
-
- hDecoder->time_out[channel+1] = (real_t*)faad_malloc(mul*hDecoder->frameLength*sizeof(real_t));
- memset(hDecoder->time_out[channel+1], 0, mul*hDecoder->frameLength*sizeof(real_t));
- }
-#endif
-
- if (hDecoder->fb_intermed[channel] != NULL)
- {
- faad_free(hDecoder->fb_intermed[channel]);
- hDecoder->fb_intermed[channel] = NULL;
- }
-
- hDecoder->fb_intermed[channel] = (real_t*)faad_malloc(hDecoder->frameLength*sizeof(real_t));
- memset(hDecoder->fb_intermed[channel], 0, hDecoder->frameLength*sizeof(real_t));
-
-#ifdef SSR_DEC
- if (hDecoder->object_type == SSR)
- {
- if (hDecoder->ssr_overlap[channel] == NULL)
- {
- hDecoder->ssr_overlap[channel] = (real_t*)faad_malloc(2*hDecoder->frameLength*sizeof(real_t));
- memset(hDecoder->ssr_overlap[channel], 0, 2*hDecoder->frameLength*sizeof(real_t));
- }
- if (hDecoder->prev_fmd[channel] == NULL)
- {
- uint16_t k;
- hDecoder->prev_fmd[channel] = (real_t*)faad_malloc(2*hDecoder->frameLength*sizeof(real_t));
- for (k = 0; k < 2*hDecoder->frameLength; k++)
- hDecoder->prev_fmd[channel][k] = REAL_CONST(-1);
- }
- }
-#endif
-
- return 0;
-}
-
-static uint8_t allocate_channel_pair(NeAACDecStruct *hDecoder,
- uint8_t channel, uint8_t paired_channel)
-{
- int mul = 1;
-
-#ifdef MAIN_DEC
- /* MAIN object type prediction */
- if (hDecoder->object_type == MAIN)
- {
- /* allocate the state only when needed */
- if (hDecoder->pred_stat[channel] == NULL)
- {
- hDecoder->pred_stat[channel] = (pred_state*)faad_malloc(hDecoder->frameLength * sizeof(pred_state));
- reset_all_predictors(hDecoder->pred_stat[channel], hDecoder->frameLength);
- }
- if (hDecoder->pred_stat[paired_channel] == NULL)
- {
- hDecoder->pred_stat[paired_channel] = (pred_state*)faad_malloc(hDecoder->frameLength * sizeof(pred_state));
- reset_all_predictors(hDecoder->pred_stat[paired_channel], hDecoder->frameLength);
- }
- }
-#endif
-
-#ifdef LTP_DEC
- if (is_ltp_ot(hDecoder->object_type))
- {
- /* allocate the state only when needed */
- if (hDecoder->lt_pred_stat[channel] == NULL)
- {
- hDecoder->lt_pred_stat[channel] = (int16_t*)faad_malloc(hDecoder->frameLength*4 * sizeof(int16_t));
- memset(hDecoder->lt_pred_stat[channel], 0, hDecoder->frameLength*4 * sizeof(int16_t));
- }
- if (hDecoder->lt_pred_stat[paired_channel] == NULL)
- {
- hDecoder->lt_pred_stat[paired_channel] = (int16_t*)faad_malloc(hDecoder->frameLength*4 * sizeof(int16_t));
- memset(hDecoder->lt_pred_stat[paired_channel], 0, hDecoder->frameLength*4 * sizeof(int16_t));
- }
- }
-#endif
-
- if (hDecoder->time_out[channel] == NULL)
- {
- mul = 1;
-#ifdef SBR_DEC
- hDecoder->sbr_alloced[hDecoder->fr_ch_ele] = 0;
- if ((hDecoder->sbr_present_flag == 1) || (hDecoder->forceUpSampling == 1))
- {
- /* SBR requires 2 times as much output data */
- mul = 2;
- hDecoder->sbr_alloced[hDecoder->fr_ch_ele] = 1;
- }
-#endif
- hDecoder->time_out[channel] = (real_t*)faad_malloc(mul*hDecoder->frameLength*sizeof(real_t));
- memset(hDecoder->time_out[channel], 0, mul*hDecoder->frameLength*sizeof(real_t));
- }
- if (hDecoder->time_out[paired_channel] == NULL)
- {
- hDecoder->time_out[paired_channel] = (real_t*)faad_malloc(mul*hDecoder->frameLength*sizeof(real_t));
- memset(hDecoder->time_out[paired_channel], 0, mul*hDecoder->frameLength*sizeof(real_t));
- }
-
- if (hDecoder->fb_intermed[channel] == NULL)
- {
- hDecoder->fb_intermed[channel] = (real_t*)faad_malloc(hDecoder->frameLength*sizeof(real_t));
- memset(hDecoder->fb_intermed[channel], 0, hDecoder->frameLength*sizeof(real_t));
- }
- if (hDecoder->fb_intermed[paired_channel] == NULL)
- {
- hDecoder->fb_intermed[paired_channel] = (real_t*)faad_malloc(hDecoder->frameLength*sizeof(real_t));
- memset(hDecoder->fb_intermed[paired_channel], 0, hDecoder->frameLength*sizeof(real_t));
- }
-
-#ifdef SSR_DEC
- if (hDecoder->object_type == SSR)
- {
- if (hDecoder->ssr_overlap[cpe->channel] == NULL)
- {
- hDecoder->ssr_overlap[cpe->channel] = (real_t*)faad_malloc(2*hDecoder->frameLength*sizeof(real_t));
- memset(hDecoder->ssr_overlap[cpe->channel], 0, 2*hDecoder->frameLength*sizeof(real_t));
- }
- if (hDecoder->ssr_overlap[cpe->paired_channel] == NULL)
- {
- hDecoder->ssr_overlap[cpe->paired_channel] = (real_t*)faad_malloc(2*hDecoder->frameLength*sizeof(real_t));
- memset(hDecoder->ssr_overlap[cpe->paired_channel], 0, 2*hDecoder->frameLength*sizeof(real_t));
- }
- if (hDecoder->prev_fmd[cpe->channel] == NULL)
- {
- uint16_t k;
- hDecoder->prev_fmd[cpe->channel] = (real_t*)faad_malloc(2*hDecoder->frameLength*sizeof(real_t));
- for (k = 0; k < 2*hDecoder->frameLength; k++)
- hDecoder->prev_fmd[cpe->channel][k] = REAL_CONST(-1);
- }
- if (hDecoder->prev_fmd[cpe->paired_channel] == NULL)
- {
- uint16_t k;
- hDecoder->prev_fmd[cpe->paired_channel] = (real_t*)faad_malloc(2*hDecoder->frameLength*sizeof(real_t));
- for (k = 0; k < 2*hDecoder->frameLength; k++)
- hDecoder->prev_fmd[cpe->paired_channel][k] = REAL_CONST(-1);
- }
- }
-#endif
-
- return 0;
-}
-
-uint8_t reconstruct_single_channel(NeAACDecStruct *hDecoder, ic_stream *ics,
- element *sce, int16_t *spec_data)
-{
- uint8_t retval;
- int output_channels;
- ALIGN real_t spec_coef[1024];
-
-#ifdef PROFILE
- int64_t count = faad_get_ts();
-#endif
-
-
- /* always allocate 2 channels, PS can always "suddenly" turn up */
-#if ( (defined(DRM) && defined(DRM_PS)) )
- output_channels = 2;
-#elif defined(PS_DEC)
- if (hDecoder->ps_used[hDecoder->fr_ch_ele])
- output_channels = 2;
- else
- output_channels = 1;
-#else
- output_channels = 1;
-#endif
-
- if (hDecoder->element_output_channels[hDecoder->fr_ch_ele] == 0)
- {
- /* element_output_channels not set yet */
- hDecoder->element_output_channels[hDecoder->fr_ch_ele] = output_channels;
- } else if (hDecoder->element_output_channels[hDecoder->fr_ch_ele] != output_channels) {
- /* element inconsistency */
-
- /* this only happens if PS is actually found but not in the first frame
- * this means that there is only 1 bitstream element!
- */
-
- /* reset the allocation */
- hDecoder->element_alloced[hDecoder->fr_ch_ele] = 0;
-
- hDecoder->element_output_channels[hDecoder->fr_ch_ele] = output_channels;
-
- //return 21;
- }
-
- if (hDecoder->element_alloced[hDecoder->fr_ch_ele] == 0)
- {
- retval = allocate_single_channel(hDecoder, sce->channel, output_channels);
- if (retval > 0)
- return retval;
-
- hDecoder->element_alloced[hDecoder->fr_ch_ele] = 1;
- }
-
-
- /* dequantisation and scaling */
- retval = quant_to_spec(hDecoder, ics, spec_data, spec_coef, hDecoder->frameLength);
- if (retval > 0)
- return retval;
-
-#ifdef PROFILE
- count = faad_get_ts() - count;
- hDecoder->requant_cycles += count;
-#endif
-
-
- /* pns decoding */
- pns_decode(ics, NULL, spec_coef, NULL, hDecoder->frameLength, 0, hDecoder->object_type,
- &(hDecoder->__r1), &(hDecoder->__r2));
-
-#ifdef MAIN_DEC
- /* MAIN object type prediction */
- if (hDecoder->object_type == MAIN)
- {
- if (!hDecoder->pred_stat[sce->channel])
- return 33;
-
- /* intra channel prediction */
- ic_prediction(ics, spec_coef, hDecoder->pred_stat[sce->channel], hDecoder->frameLength,
- hDecoder->sf_index);
-
- /* In addition, for scalefactor bands coded by perceptual
- noise substitution the predictors belonging to the
- corresponding spectral coefficients are reset.
- */
- pns_reset_pred_state(ics, hDecoder->pred_stat[sce->channel]);
- }
-#endif
-
-#ifdef LTP_DEC
- if (is_ltp_ot(hDecoder->object_type))
- {
-#ifdef LD_DEC
- if (hDecoder->object_type == LD)
- {
- if (ics->ltp.data_present)
- {
- if (ics->ltp.lag_update)
- hDecoder->ltp_lag[sce->channel] = ics->ltp.lag;
- }
- ics->ltp.lag = hDecoder->ltp_lag[sce->channel];
- }
-#endif
-
- /* long term prediction */
- lt_prediction(ics, &(ics->ltp), spec_coef, hDecoder->lt_pred_stat[sce->channel], hDecoder->fb,
- ics->window_shape, hDecoder->window_shape_prev[sce->channel],
- hDecoder->sf_index, hDecoder->object_type, hDecoder->frameLength);
- }
-#endif
-
- /* tns decoding */
- tns_decode_frame(ics, &(ics->tns), hDecoder->sf_index, hDecoder->object_type,
- spec_coef, hDecoder->frameLength);
-
- /* drc decoding */
- if (hDecoder->drc->present)
- {
- if (!hDecoder->drc->exclude_mask[sce->channel] || !hDecoder->drc->excluded_chns_present)
- drc_decode(hDecoder->drc, spec_coef);
- }
-
- /* filter bank */
-#ifdef SSR_DEC
- if (hDecoder->object_type != SSR)
- {
-#endif
- ifilter_bank(hDecoder->fb, ics->window_sequence, ics->window_shape,
- hDecoder->window_shape_prev[sce->channel], spec_coef,
- hDecoder->time_out[sce->channel], hDecoder->fb_intermed[sce->channel],
- hDecoder->object_type, hDecoder->frameLength);
-#ifdef SSR_DEC
- } else {
- ssr_decode(&(ics->ssr), hDecoder->fb, ics->window_sequence, ics->window_shape,
- hDecoder->window_shape_prev[sce->channel], spec_coef, hDecoder->time_out[sce->channel],
- hDecoder->ssr_overlap[sce->channel], hDecoder->ipqf_buffer[sce->channel], hDecoder->prev_fmd[sce->channel],
- hDecoder->frameLength);
- }
-#endif
-
- /* save window shape for next frame */
- hDecoder->window_shape_prev[sce->channel] = ics->window_shape;
-
-#ifdef LTP_DEC
- if (is_ltp_ot(hDecoder->object_type))
- {
- lt_update_state(hDecoder->lt_pred_stat[sce->channel], hDecoder->time_out[sce->channel],
- hDecoder->fb_intermed[sce->channel], hDecoder->frameLength, hDecoder->object_type);
- }
-#endif
-
-#ifdef SBR_DEC
- if (((hDecoder->sbr_present_flag == 1) || (hDecoder->forceUpSampling == 1))
- && hDecoder->sbr_alloced[hDecoder->fr_ch_ele])
- {
- int ele = hDecoder->fr_ch_ele;
- int ch = sce->channel;
-
- /* following case can happen when forceUpSampling == 1 */
- if (hDecoder->sbr[ele] == NULL)
- {
- hDecoder->sbr[ele] = sbrDecodeInit(hDecoder->frameLength,
- hDecoder->element_id[ele], 2*get_sample_rate(hDecoder->sf_index),
- hDecoder->downSampledSBR
-#ifdef DRM
- , 0
-#endif
- );
- }
-
- if (sce->ics1.window_sequence == EIGHT_SHORT_SEQUENCE)
- hDecoder->sbr[ele]->maxAACLine = 8*min(sce->ics1.swb_offset[max(sce->ics1.max_sfb-1, 0)], sce->ics1.swb_offset_max);
- else
- hDecoder->sbr[ele]->maxAACLine = min(sce->ics1.swb_offset[max(sce->ics1.max_sfb-1, 0)], sce->ics1.swb_offset_max);
-
- /* check if any of the PS tools is used */
-#if (defined(PS_DEC) || defined(DRM_PS))
- if (hDecoder->ps_used[ele] == 0)
- {
-#endif
- retval = sbrDecodeSingleFrame(hDecoder->sbr[ele], hDecoder->time_out[ch],
- hDecoder->postSeekResetFlag, hDecoder->downSampledSBR);
-#if (defined(PS_DEC) || defined(DRM_PS))
- } else {
- retval = sbrDecodeSingleFramePS(hDecoder->sbr[ele], hDecoder->time_out[ch],
- hDecoder->time_out[ch+1], hDecoder->postSeekResetFlag,
- hDecoder->downSampledSBR);
- }
-#endif
- if (retval > 0)
- return retval;
- } else if (((hDecoder->sbr_present_flag == 1) || (hDecoder->forceUpSampling == 1))
- && !hDecoder->sbr_alloced[hDecoder->fr_ch_ele])
- {
- return 23;
- }
-#endif
-
- /* copy L to R when no PS is used */
-#if (defined(PS_DEC) || defined(DRM_PS))
- if ((hDecoder->ps_used[hDecoder->fr_ch_ele] == 0) &&
- (hDecoder->element_output_channels[hDecoder->fr_ch_ele] == 2))
- {
- int ele = hDecoder->fr_ch_ele;
- int ch = sce->channel;
- int frame_size = (hDecoder->sbr_alloced[ele]) ? 2 : 1;
- frame_size *= hDecoder->frameLength*sizeof(real_t);
-
- memcpy(hDecoder->time_out[ch+1], hDecoder->time_out[ch], frame_size);
- }
-#endif
-
- return 0;
-}
-
-uint8_t reconstruct_channel_pair(NeAACDecStruct *hDecoder, ic_stream *ics1, ic_stream *ics2,
- element *cpe, int16_t *spec_data1, int16_t *spec_data2)
-{
- uint8_t retval;
- ALIGN real_t spec_coef1[1024];
- ALIGN real_t spec_coef2[1024];
-
-#ifdef PROFILE
- int64_t count = faad_get_ts();
-#endif
- if (hDecoder->element_alloced[hDecoder->fr_ch_ele] == 0)
- {
- retval = allocate_channel_pair(hDecoder, cpe->channel, (uint8_t)cpe->paired_channel);
- if (retval > 0)
- return retval;
-
- hDecoder->element_alloced[hDecoder->fr_ch_ele] = 1;
- }
-
- /* dequantisation and scaling */
- retval = quant_to_spec(hDecoder, ics1, spec_data1, spec_coef1, hDecoder->frameLength);
- if (retval > 0)
- return retval;
- retval = quant_to_spec(hDecoder, ics2, spec_data2, spec_coef2, hDecoder->frameLength);
- if (retval > 0)
- return retval;
-
-#ifdef PROFILE
- count = faad_get_ts() - count;
- hDecoder->requant_cycles += count;
-#endif
-
-
- /* pns decoding */
- if (ics1->ms_mask_present)
- {
- pns_decode(ics1, ics2, spec_coef1, spec_coef2, hDecoder->frameLength, 1, hDecoder->object_type,
- &(hDecoder->__r1), &(hDecoder->__r2));
- } else {
- pns_decode(ics1, NULL, spec_coef1, NULL, hDecoder->frameLength, 0, hDecoder->object_type,
- &(hDecoder->__r1), &(hDecoder->__r2));
- pns_decode(ics2, NULL, spec_coef2, NULL, hDecoder->frameLength, 0, hDecoder->object_type,
- &(hDecoder->__r1), &(hDecoder->__r2));
- }
-
- /* mid/side decoding */
- ms_decode(ics1, ics2, spec_coef1, spec_coef2, hDecoder->frameLength);
-
-#if 0
- {
- int i;
- for (i = 0; i < 1024; i++)
- {
- //printf("%d\n", spec_coef1[i]);
- printf("0x%.8X\n", spec_coef1[i]);
- }
- for (i = 0; i < 1024; i++)
- {
- //printf("%d\n", spec_coef2[i]);
- printf("0x%.8X\n", spec_coef2[i]);
- }
- }
-#endif
-
- /* intensity stereo decoding */
- is_decode(ics1, ics2, spec_coef1, spec_coef2, hDecoder->frameLength);
-
-#if 0
- {
- int i;
- for (i = 0; i < 1024; i++)
- {
- printf("%d\n", spec_coef1[i]);
- //printf("0x%.8X\n", spec_coef1[i]);
- }
- for (i = 0; i < 1024; i++)
- {
- printf("%d\n", spec_coef2[i]);
- //printf("0x%.8X\n", spec_coef2[i]);
- }
- }
-#endif
-
-#ifdef MAIN_DEC
- /* MAIN object type prediction */
- if (hDecoder->object_type == MAIN)
- {
- /* intra channel prediction */
- ic_prediction(ics1, spec_coef1, hDecoder->pred_stat[cpe->channel], hDecoder->frameLength,
- hDecoder->sf_index);
- ic_prediction(ics2, spec_coef2, hDecoder->pred_stat[cpe->paired_channel], hDecoder->frameLength,
- hDecoder->sf_index);
-
- /* In addition, for scalefactor bands coded by perceptual
- noise substitution the predictors belonging to the
- corresponding spectral coefficients are reset.
- */
- pns_reset_pred_state(ics1, hDecoder->pred_stat[cpe->channel]);
- pns_reset_pred_state(ics2, hDecoder->pred_stat[cpe->paired_channel]);
- }
-#endif
-
-#ifdef LTP_DEC
- if (is_ltp_ot(hDecoder->object_type))
- {
- ltp_info *ltp1 = &(ics1->ltp);
- ltp_info *ltp2 = (cpe->common_window) ? &(ics2->ltp2) : &(ics2->ltp);
-#ifdef LD_DEC
- if (hDecoder->object_type == LD)
- {
- if (ltp1->data_present)
- {
- if (ltp1->lag_update)
- hDecoder->ltp_lag[cpe->channel] = ltp1->lag;
- }
- ltp1->lag = hDecoder->ltp_lag[cpe->channel];
- if (ltp2->data_present)
- {
- if (ltp2->lag_update)
- hDecoder->ltp_lag[cpe->paired_channel] = ltp2->lag;
- }
- ltp2->lag = hDecoder->ltp_lag[cpe->paired_channel];
- }
-#endif
-
- /* long term prediction */
- lt_prediction(ics1, ltp1, spec_coef1, hDecoder->lt_pred_stat[cpe->channel], hDecoder->fb,
- ics1->window_shape, hDecoder->window_shape_prev[cpe->channel],
- hDecoder->sf_index, hDecoder->object_type, hDecoder->frameLength);
- lt_prediction(ics2, ltp2, spec_coef2, hDecoder->lt_pred_stat[cpe->paired_channel], hDecoder->fb,
- ics2->window_shape, hDecoder->window_shape_prev[cpe->paired_channel],
- hDecoder->sf_index, hDecoder->object_type, hDecoder->frameLength);
- }
-#endif
-
- /* tns decoding */
- tns_decode_frame(ics1, &(ics1->tns), hDecoder->sf_index, hDecoder->object_type,
- spec_coef1, hDecoder->frameLength);
- tns_decode_frame(ics2, &(ics2->tns), hDecoder->sf_index, hDecoder->object_type,
- spec_coef2, hDecoder->frameLength);
-
- /* drc decoding */
- if (hDecoder->drc->present)
- {
- if (!hDecoder->drc->exclude_mask[cpe->channel] || !hDecoder->drc->excluded_chns_present)
- drc_decode(hDecoder->drc, spec_coef1);
- if (!hDecoder->drc->exclude_mask[cpe->paired_channel] || !hDecoder->drc->excluded_chns_present)
- drc_decode(hDecoder->drc, spec_coef2);
- }
-
- /* filter bank */
-#ifdef SSR_DEC
- if (hDecoder->object_type != SSR)
- {
-#endif
- ifilter_bank(hDecoder->fb, ics1->window_sequence, ics1->window_shape,
- hDecoder->window_shape_prev[cpe->channel], spec_coef1,
- hDecoder->time_out[cpe->channel], hDecoder->fb_intermed[cpe->channel],
- hDecoder->object_type, hDecoder->frameLength);
- ifilter_bank(hDecoder->fb, ics2->window_sequence, ics2->window_shape,
- hDecoder->window_shape_prev[cpe->paired_channel], spec_coef2,
- hDecoder->time_out[cpe->paired_channel], hDecoder->fb_intermed[cpe->paired_channel],
- hDecoder->object_type, hDecoder->frameLength);
-#ifdef SSR_DEC
- } else {
- ssr_decode(&(ics1->ssr), hDecoder->fb, ics1->window_sequence, ics1->window_shape,
- hDecoder->window_shape_prev[cpe->channel], spec_coef1, hDecoder->time_out[cpe->channel],
- hDecoder->ssr_overlap[cpe->channel], hDecoder->ipqf_buffer[cpe->channel],
- hDecoder->prev_fmd[cpe->channel], hDecoder->frameLength);
- ssr_decode(&(ics2->ssr), hDecoder->fb, ics2->window_sequence, ics2->window_shape,
- hDecoder->window_shape_prev[cpe->paired_channel], spec_coef2, hDecoder->time_out[cpe->paired_channel],
- hDecoder->ssr_overlap[cpe->paired_channel], hDecoder->ipqf_buffer[cpe->paired_channel],
- hDecoder->prev_fmd[cpe->paired_channel], hDecoder->frameLength);
- }
-#endif
-
- /* save window shape for next frame */
- hDecoder->window_shape_prev[cpe->channel] = ics1->window_shape;
- hDecoder->window_shape_prev[cpe->paired_channel] = ics2->window_shape;
-
-#ifdef LTP_DEC
- if (is_ltp_ot(hDecoder->object_type))
- {
- lt_update_state(hDecoder->lt_pred_stat[cpe->channel], hDecoder->time_out[cpe->channel],
- hDecoder->fb_intermed[cpe->channel], hDecoder->frameLength, hDecoder->object_type);
- lt_update_state(hDecoder->lt_pred_stat[cpe->paired_channel], hDecoder->time_out[cpe->paired_channel],
- hDecoder->fb_intermed[cpe->paired_channel], hDecoder->frameLength, hDecoder->object_type);
- }
-#endif
-
-#ifdef SBR_DEC
- if (((hDecoder->sbr_present_flag == 1) || (hDecoder->forceUpSampling == 1))
- && hDecoder->sbr_alloced[hDecoder->fr_ch_ele])
- {
- int ele = hDecoder->fr_ch_ele;
- int ch0 = cpe->channel;
- int ch1 = cpe->paired_channel;
-
- /* following case can happen when forceUpSampling == 1 */
- if (hDecoder->sbr[ele] == NULL)
- {
- hDecoder->sbr[ele] = sbrDecodeInit(hDecoder->frameLength,
- hDecoder->element_id[ele], 2*get_sample_rate(hDecoder->sf_index),
- hDecoder->downSampledSBR
-#ifdef DRM
- , 0
-#endif
- );
- }
-
- if (cpe->ics1.window_sequence == EIGHT_SHORT_SEQUENCE)
- hDecoder->sbr[ele]->maxAACLine = 8*min(cpe->ics1.swb_offset[max(cpe->ics1.max_sfb-1, 0)], cpe->ics1.swb_offset_max);
- else
- hDecoder->sbr[ele]->maxAACLine = min(cpe->ics1.swb_offset[max(cpe->ics1.max_sfb-1, 0)], cpe->ics1.swb_offset_max);
-
- retval = sbrDecodeCoupleFrame(hDecoder->sbr[ele],
- hDecoder->time_out[ch0], hDecoder->time_out[ch1],
- hDecoder->postSeekResetFlag, hDecoder->downSampledSBR);
- if (retval > 0)
- return retval;
- } else if (((hDecoder->sbr_present_flag == 1) || (hDecoder->forceUpSampling == 1))
- && !hDecoder->sbr_alloced[hDecoder->fr_ch_ele])
- {
- return 23;
- }
-#endif
-
- return 0;
-}
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