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| author | Ronald S. Bultje <rsbultje@gmail.com> | 2010-12-18 03:03:18 +0000 |
|---|---|---|
| committer | Ronald S. Bultje <rsbultje@gmail.com> | 2010-12-18 03:03:18 +0000 |
| commit | 2b2a597ec08b10a4995159b9f2572308c14dff47 (patch) | |
| tree | 77422bc0e81a288c6efb8c4639bd247f93110da6 | |
| parent | 386268dfff214a75e6a4eec1b283e640366fde06 (diff) | |
| download | ffmpeg-2b2a597ec08b10a4995159b9f2572308c14dff47.tar.gz | |
AMR-WB decoder, written as part of Google Summer of Code 2010 by Marcelo
Galvão Póvoa <marspeoplester gmail com>, mentored by Robert Swain <robert
dot swain gmail com>.
Originally committed as revision 26051 to svn://svn.ffmpeg.org/ffmpeg/trunk
| -rw-r--r-- | Changelog | 1 | ||||
| -rwxr-xr-x | configure | 1 | ||||
| -rw-r--r-- | doc/general.texi | 3 | ||||
| -rw-r--r-- | libavcodec/Makefile | 4 | ||||
| -rw-r--r-- | libavcodec/allcodecs.c | 1 | ||||
| -rw-r--r-- | libavcodec/amrwbdata.h | 1889 | ||||
| -rw-r--r-- | libavcodec/amrwbdec.c | 1237 |
7 files changed, 3134 insertions, 2 deletions
@@ -65,6 +65,7 @@ version <next>: - RTP depacketization of QCELP - FLAC parser added - gradfun filter added +- AMR-WB decoder version 0.6: @@ -1194,6 +1194,7 @@ aac_latm_decoder_select="aac_decoder aac_latm_parser" ac3_decoder_select="mdct ac3_parser" alac_encoder_select="lpc" amrnb_decoder_select="lsp" +amrwb_decoder_select="lsp" atrac1_decoder_select="mdct" atrac3_decoder_select="mdct" binkaudio_dct_decoder_select="mdct rdft dct" diff --git a/doc/general.texi b/doc/general.texi index 9eb8c86cbc..922816e1d8 100644 --- a/doc/general.texi +++ b/doc/general.texi @@ -574,8 +574,7 @@ following image formats are supported: @item ADPCM Yamaha @tab X @tab X @item AMR-NB @tab E @tab X @tab encoding supported through external library libopencore-amrnb -@item AMR-WB @tab @tab E - @tab decoding supported through external library libopencore-amrwb +@item AMR-WB @tab @tab X @item Apple lossless audio @tab X @tab X @tab QuickTime fourcc 'alac' @item Atrac 1 @tab @tab X diff --git a/libavcodec/Makefile b/libavcodec/Makefile index b83af716f2..8a9a8ddb2f 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -62,6 +62,10 @@ OBJS-$(CONFIG_AMRNB_DECODER) += amrnbdec.o celp_filters.o \ celp_math.o acelp_filters.o \ acelp_vectors.o \ acelp_pitch_delay.o +OBJS-$(CONFIG_AMRWB_DECODER) += amrwbdec.o celp_filters.o \ + celp_math.o acelp_filters.o \ + acelp_vectors.o \ + acelp_pitch_delay.o lsp.o OBJS-$(CONFIG_AMV_DECODER) += sp5xdec.o mjpegdec.o mjpeg.o OBJS-$(CONFIG_ANM_DECODER) += anm.o OBJS-$(CONFIG_ANSI_DECODER) += ansi.o cga_data.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 50ac1500ee..b368ea08a9 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -225,6 +225,7 @@ void avcodec_register_all(void) REGISTER_ENCDEC (ALAC, alac); REGISTER_DECODER (ALS, als); REGISTER_DECODER (AMRNB, amrnb); + REGISTER_DECODER (AMRWB, amrwb); REGISTER_DECODER (APE, ape); REGISTER_DECODER (ATRAC1, atrac1); REGISTER_DECODER (ATRAC3, atrac3); diff --git a/libavcodec/amrwbdata.h b/libavcodec/amrwbdata.h new file mode 100644 index 0000000000..47b0d42a9c --- /dev/null +++ b/libavcodec/amrwbdata.h @@ -0,0 +1,1889 @@ +/* + * AMR wideband data and definitions + * Copyright (c) 2010 Marcelo Galvao Povoa + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * AMR wideband data and definitions + */ + +#ifndef AVCODEC_AMRWBDATA_H +#define AVCODEC_AMRWBDATA_H + +#include <stdint.h> + +#define LP_ORDER 16 ///< linear predictive coding filter order +#define LP_ORDER_16k 20 ///< lpc filter order at 16kHz +#define HB_FIR_SIZE 30 ///< amount of past data needed by HB filters +#define UPS_FIR_SIZE 12 ///< upsampling filter size +#define UPS_MEM_SIZE (2 * UPS_FIR_SIZE) + +#define MIN_ISF_SPACING (128.0 / 32768.0) ///< minimum isf gap +#define PRED_FACTOR (1.0 / 3.0) +#define MIN_ENERGY -14.0 ///< initial innnovation energy (dB) +#define ENERGY_MEAN 30.0 ///< mean innovation energy (dB) in all modes +#define PREEMPH_FAC 0.68 ///< factor used to de-emphasize synthesis + +#define AMRWB_SFR_SIZE 64 ///< samples per subframe at 12.8 kHz +#define AMRWB_SFR_SIZE_16k 80 ///< samples per subframe at 16 kHz +#define AMRWB_P_DELAY_MAX 231 ///< maximum pitch delay value +#define AMRWB_P_DELAY_MIN 34 + +/* Relative mode ordering is sensitive */ +enum Mode { + MODE_6k60 = 0, ///< 6.60 kbit/s + MODE_8k85, ///< 8.85 kbit/s + MODE_12k65, ///< 12.65 kbit/s + MODE_14k25, ///< 14.25 kbit/s + MODE_15k85, ///< 15.85 kbit/s + MODE_18k25, ///< 18.25 kbit/s + MODE_19k85, ///< 19.85 kbit/s + MODE_23k05, ///< 23.05 kbit/s + MODE_23k85, ///< 23.85 kbit/s + MODE_SID, ///< comfort noise frame + /* 10-13: Future use */ + SP_LOST = 14, ///< speech lost + NO_DATA ///< no transmission +}; + +/* All decoded parameters in these structs must be 2 bytes long + * because of the direct indexing at the frame parsing */ +typedef struct { + uint16_t adap; ///< adaptive codebook index + uint16_t ltp; ///< ltp-filtering flag + uint16_t vq_gain; ///< VQ adaptive and innovative gains + uint16_t hb_gain; ///< high-band energy index (mode 23k85 only) + uint16_t pul_ih[4]; ///< MSBs part of codebook index (high modes only) + uint16_t pul_il[4]; ///< LSBs part of codebook index +} AMRWBSubFrame; + +typedef struct { + uint16_t vad; ///< voice activity detection flag + uint16_t isp_id[7]; ///< index of ISP subvectors + AMRWBSubFrame subframe[4]; ///< data for subframes +} AMRWBFrame; + +/** The index of a frame parameter */ +#define AMR_BIT(field) (offsetof(AMRWBFrame, field) >> 1) +/** The index of a subframe-specific parameter */ +#define AMR_OF(frame_num, variable) AMR_BIT(subframe[frame_num].variable) + +//As defined in 3GPP TS 26.201 V9.0.0 +//Tables for bit parsing in Core Frame speech frames +//The reordered bits are in order of decreasing importance and +//may be contiguously separated in Class A, B and C bits. + +// Each field in AMRWBFrame is stored as: +// * one byte for the number of bits in the field +// * one byte for the field index +// * then, one byte for each bit of the field (from most-significant to least) +// of the position of that bit in the AMR frame. +static const uint16_t order_MODE_6k60[] = { + 1, AMR_BIT(vad), 7, + 8, AMR_BIT(isp_id[0]), 24, 33, 39, 12, 6, 5, 4, 13, + 8, AMR_BIT(isp_id[1]), 65, 79, 64, 78, 51, 61, 71, 70, + 7, AMR_BIT(isp_id[2]), 52, 55, 44, 54, 53, 43, 42, + 7, AMR_BIT(isp_id[3]), 60, 59, 58, 57, 56, 75, 74, + 6, AMR_BIT(isp_id[4]), 73, 72, 86, 87, 85, 84, + 8, AMR_OF(0, adap), 11, 10, 9, 8, 28, 27, 49, 69, + 6, AMR_OF(0, pul_il[0]), 83, 91, 99, 107, 115, 123, + 6, AMR_OF(0, pul_il[1]), 82, 103, 111, 119, 127, 135, + 6, AMR_OF(0, vq_gain), 38, 23, 34, 19, 3, 15, + 5, AMR_OF(1, adap), 32, 41, 63, 67, 77, + 6, AMR_OF(1, pul_il[0]), 81, 90, 98, 106, 114, 122, + 6, AMR_OF(1, pul_il[1]), 80, 102, 110, 118, 126, 134, + 6, AMR_OF(1, vq_gain), 26, 22, 36, 18, 2, 14, + 5, AMR_OF(2, adap), 45, 40, 50, 48, 68, + 6, AMR_OF(2, pul_il[0]), 95, 89, 97, 105, 113, 121, + 6, AMR_OF(2, pul_il[1]), 94, 101, 109, 117, 125, 133, + 6, AMR_OF(2, vq_gain), 37, 21, 35, 17, 1, 31, + 5, AMR_OF(3, adap), 47, 46, 62, 66, 76, + 6, AMR_OF(3, pul_il[0]), 93, 88, 96, 104, 112, 120, + 6, AMR_OF(3, pul_il[1]), 92, 100, 108, 116, 124, 132, + 6, AMR_OF(3, vq_gain), 25, 20, 29, 16, 0, 30, + 0 +}; + +static const uint16_t order_MODE_8k85[] = { + 1, AMR_BIT(vad), 7, + 8, AMR_BIT(isp_id[0]), 47, 32, 2, 6, 3, 5, 4, 60, + 8, AMR_BIT(isp_id[1]), 69, 50, 67, 41, 51, 49, 59, 53, + 6, AMR_BIT(isp_id[2]), 40, 55, 43, 54, 42, 62, + 7, AMR_BIT(isp_id[3]), 63, 48, 52, 61, 77, 78, 72, + 7, AMR_BIT(isp_id[4]), 85, 56, 86, 68, 74, 73, 81, + 5, AMR_BIT(isp_id[5]), 82, 95, 80, 94, 91, + 5, AMR_BIT(isp_id[6]), 90, 89, 88, 103, 87, + 8, AMR_OF(0, adap), 1, 0, 15, 35, 33, 58, 64, 84, + 5, AMR_OF(0, pul_il[0]), 102, 118, 134, 150, 166, + 5, AMR_OF(0, pul_il[1]), 101, 114, 130, 146, 162, + 5, AMR_OF(0, pul_il[2]), 100, 126, 142, 158, 174, + 5, AMR_OF(0, pul_il[3]), 99, 122, 138, 154, 170, + 6, AMR_OF(0, vq_gain), 11, 39, 19, 31, 27, 23, + 5, AMR_OF(1, adap), 46, 71, 66, 76, 93, + 5, AMR_OF(1, pul_il[0]), 98, 117, 133, 149, 165, + 5, AMR_OF(1, pul_il[1]), 97, 113, 129, 145, 161, + 5, AMR_OF(1, pul_il[2]), 96, 125, 141, 157, 173, + 5, AMR_OF(1, pul_il[3]), 111, 121, 137, 153, 169, + 6, AMR_OF(1, vq_gain), 10, 38, 18, 30, 26, 22, + 8, AMR_OF(2, adap), 14, 13, 12, 34, 45, 57, 79, 83, + 5, AMR_OF(2, pul_il[0]), 110, 116, 132, 148, 164, + 5, AMR_OF(2, pul_il[1]), 109, 112, 128, 144, 160, + 5, AMR_OF(2, pul_il[2]), 108, 124, 140, 156, 172, + 5, AMR_OF(2, pul_il[3]), 107, 120, 136, 152, 168, + 6, AMR_OF(2, vq_gain), 9, 37, 17, 29, 25, 21, + 5, AMR_OF(3, adap), 44, 70, 65, 75, 92, + 5, AMR_OF(3, pul_il[0]), 106, 115, 131, 147, 163, + 5, AMR_OF(3, pul_il[1]), 105, 127, 143, 159, 175, + 5, AMR_OF(3, pul_il[2]), 104, 123, 139, 155, 171, + 5, AMR_OF(3, pul_il[3]), 119, 135, 151, 167, 183, + 6, AMR_OF(3, vq_gain), 8, 36, 16, 28, 24, 20, + 0 +}; + +static const uint16_t order_MODE_12k65[] = { + 1, AMR_BIT(vad), 7, + 8, AMR_BIT(isp_id[0]), 55, 40, 14, 6, 15, 5, 0, 68, + 8, AMR_BIT(isp_id[1]), 77, 58, 75, 49, 59, 57, 67, 61, + 6, AMR_BIT(isp_id[2]), 48, 63, 51, 62, 50, 70, + 7, AMR_BIT(isp_id[3]), 71, 56, 60, 69, 85, 86, 80, + 7, AMR_BIT(isp_id[4]), 93, 64, 94, 76, 82, 81, 89, + 5, AMR_BIT(isp_id[5]), 90, 103, 88, 102, 99, + 5, AMR_BIT(isp_id[6]), 98, 97, 96, 111, 95, + 9, AMR_OF(0, adap), 13, 12, 11, 10, 9, 41, 66, 72, + 92, + 1, AMR_OF(0, ltp), 110, + 9, AMR_OF(0, pul_il[0]), 106, 122, 154, 186, 218, 134, 166, 198, + 230, + 9, AMR_OF(0, pul_il[1]), 105, 130, 162, 194, 226, 142, 174, 206, + 238, + 9, AMR_OF(0, pul_il[2]), 104, 138, 170, 202, 234, 150, 182, 214, + 246, + 9, AMR_OF(0, pul_il[3]), 119, 146, 178, 210, 242, 158, 190, 222, + 254, + 7, AMR_OF(0, vq_gain), 4, 19, 45, 27, 39, 33, 31, + 6, AMR_OF(1, adap), 35, 54, 79, 74, 84, 101, + 1, AMR_OF(1, ltp), 109, + 9, AMR_OF(1, pul_il[0]), 118, 121, 153, 185, 217, 133, 165, 197, + 229, + 9, AMR_OF(1, pul_il[1]), 117, 129, 161, 193, 225, 141, 173, 205, + 237, + 9, AMR_OF(1, pul_il[2]), 116, 137, 169, 201, 233, 149, 181, 213, + 245, + 9, AMR_OF(1, pul_il[3]), 115, 145, 177, 209, 241, 157, 189, 221, + 253, + 7, AMR_OF(1, vq_gain), 3, 18, 44, 26, 38, 32, 30, + 9, AMR_OF(2, adap), 8, 23, 22, 21, 20, 52, 65, 87, + 91, + 1, AMR_OF(2, ltp), 108, + 9, AMR_OF(2, pul_il[0]), 114, 120, 152, 184, 216, 132, 164, 196, + 228, + 9, AMR_OF(2, pul_il[1]), 113, 128, 160, 192, 224, 140, 172, 204, + 236, + 9, AMR_OF(2, pul_il[2]), 112, 136, 168, 200, 232, 148, 180, 212, + 244, + 9, AMR_OF(2, pul_il[3]), 127, 144, 176, 208, 240, 156, 188, 220, + 252, + 7, AMR_OF(2, vq_gain), 2, 17, 43, 25, 37, 47, 29, + 6, AMR_OF(3, adap), 34, 53, 78, 73, 83, 100, + 1, AMR_OF(3, ltp), 107, + 9, AMR_OF(3, pul_il[0]), 126, 135, 167, 199, 231, 131, 163, 195, + 227, + 9, AMR_OF(3, pul_il[1]), 125, 143, 175, 207, 239, 139, 171, 203, + 235, + 9, AMR_OF(3, pul_il[2]), 124, 151, 183, 215, 247, 147, 179, 211, + 243, + 9, AMR_OF(3, pul_il[3]), 123, 159, 191, 223, 255, 155, 187, 219, + 251, + 7, AMR_OF(3, vq_gain), 1, 16, 42, 24, 36, 46, 28, + 0 +}; + +static const uint16_t order_MODE_14k25[] = { + 1, AMR_BIT(vad), 7, + 8, AMR_BIT(isp_id[0]), 55, 40, 14, 6, 15, 5, 0, 68, + 8, AMR_BIT(isp_id[1]), 77, 58, 75, 49, 59, 57, 67, 61, + 6, AMR_BIT(isp_id[2]), 48, 63, 51, 62, 50, 70, + 7, AMR_BIT(isp_id[3]), 71, 56, 60, 69, 85, 86, 80, + 7, AMR_BIT(isp_id[4]), 93, 64, 94, 76, 82, 81, 89, + 5, AMR_BIT(isp_id[5]), 90, 103, 88, 102, 99, + 5, AMR_BIT(isp_id[6]), 98, 97, 96, 111, 95, + 9, AMR_OF(0, adap), 13, 12, 11, 10, 9, 41, 66, 72, + 92, + 1, AMR_OF(0, ltp), 110, + 13, AMR_OF(0, pul_il[0]), 114, 186, 210, 234, 258, 106, 126, 162, + 170, 198, 222, 246, 270, + 13, AMR_OF(0, pul_il[1]), 122, 194, 218, 242, 266, 118, 134, 174, + 182, 206, 230, 254, 278, + 9, AMR_OF(0, pul_il[2]), 130, 138, 146, 154, 178, 202, 226, 250, + 274, + 9, AMR_OF(0, pul_il[3]), 142, 150, 158, 166, 190, 214, 238, 262, + 286, + 7, AMR_OF(0, vq_gain), 4, 19, 45, 27, 39, 33, 31, + 6, AMR_OF(1, adap), 35, 54, 79, 74, 84, 101, + 1, AMR_OF(1, ltp), 109, + 13, AMR_OF(1, pul_il[0]), 113, 185, 209, 233, 257, 105, 125, 161, + 169, 197, 221, 245, 269, + 13, AMR_OF(1, pul_il[1]), 121, 193, 217, 241, 265, 117, 133, 173, + 181, 205, 229, 253, 277, + 9, AMR_OF(1, pul_il[2]), 129, 137, 145, 153, 177, 201, 225, 249, + 273, + 9, AMR_OF(1, pul_il[3]), 141, 149, 157, 165, 189, 213, 237, 261, + 285, + 7, AMR_OF(1, vq_gain), 3, 18, 44, 26, 38, 32, 30, + 9, AMR_OF(2, adap), 8, 23, 22, 21, 20, 52, 65, 87, + 91, + 1, AMR_OF(2, ltp), 108, + 13, AMR_OF(2, pul_il[0]), 112, 184, 208, 232, 256, 104, 124, 160, + 168, 196, 220, 244, 268, + 13, AMR_OF(2, pul_il[1]), 120, 192, 216, 240, 264, 116, 132, 172, + 180, 204, 228, 252, 276, + 9, AMR_OF(2, pul_il[2]), 128, 136, 144, 152, 176, 200, 224, 248, + 272, + 9, AMR_OF(2, pul_il[3]), 140, 148, 156, 164, 188, 212, 236, 260, + 284, + 7, AMR_OF(2, vq_gain), 2, 17, 43, 25, 37, 47, 29, + 6, AMR_OF(3, adap), 34, 53, 78, 73, 83, 100, + 1, AMR_OF(3, ltp), 107, + 13, AMR_OF(3, pul_il[0]), 127, 199, 223, 247, 271, 119, 123, 175, + 183, 195, 219, 243, 267, + 13, AMR_OF(3, pul_il[1]), 135, 207, 231, 255, 279, 115, 131, 171, + 179, 203, 227, 251, 275, + 9, AMR_OF(3, pul_il[2]), 143, 151, 159, 167, 191, 215, 239, 263, + 287, + 9, AMR_OF(3, pul_il[3]), 139, 147, 155, 163, 187, 211, 235, 259, + 283, + 7, AMR_OF(3, vq_gain), 1, 16, 42, 24, 36, 46, 28, + 0 +}; + +static const uint16_t order_MODE_15k85[] = { + 1, AMR_BIT(vad), 7, + 8, AMR_BIT(isp_id[0]), 55, 40, 14, 6, 15, 5, 0, 68, + 8, AMR_BIT(isp_id[1]), 77, 58, 75, 49, 59, 57, 67, 61, + 6, AMR_BIT(isp_id[2]), 48, 63, 51, 62, 50, 70, + 7, AMR_BIT(isp_id[3]), 71, 56, 60, 69, 85, 86, 80, + 7, AMR_BIT(isp_id[4]), 93, 64, 94, 76, 82, 81, 89, + 5, AMR_BIT(isp_id[5]), 90, 103, 88, 102, 99, + 5, AMR_BIT(isp_id[6]), 98, 97, 96, 111, 95, + 9, AMR_OF(0, adap), 13, 12, 11, 10, 9, 41, 66, 72, + 92, + 1, AMR_OF(0, ltp), 110, + 13, AMR_OF(0, pul_il[0]), 122, 154, 170, 218, 266, 138, 106, 182, + 230, 278, 178, 226, 274, + 13, AMR_OF(0, pul_il[1]), 134, 166, 190, 238, 286, 150, 118, 186, + 234, 282, 198, 246, 294, + 13, AMR_OF(0, pul_il[2]), 130, 162, 194, 242, 290, 146, 114, 206, + 254, 302, 202, 250, 298, + 13, AMR_OF(0, pul_il[3]), 142, 174, 214, 262, 310, 158, 126, 210, + 258, 306, 222, 270, 318, + 7, AMR_OF(0, vq_gain), 4, 19, 45, 27, 39, 33, 31, + 6, AMR_OF(1, adap), 35, 54, 79, 74, 84, 101, + 1, AMR_OF(1, ltp), 109, + 13, AMR_OF(1, pul_il[0]), 121, 153, 169, 217, 265, 137, 105, 181, + 229, 277, 177, 225, 273, + 13, AMR_OF(1, pul_il[1]), 133, 165, 189, 237, 285, 149, 117, 185, + 233, 281, 197, 245, 293, + 13, AMR_OF(1, pul_il[2]), 129, 161, 193, 241, 289, 145, 113, 205, + 253, 301, 201, 249, 297, + 13, AMR_OF(1, pul_il[3]), 141, 173, 213, 261, 309, 157, 125, 209, + 257, 305, 221, 269, 317, + 7, AMR_OF(1, vq_gain), 3, 18, 44, 26, 38, 32, 30, + 9, AMR_OF(2, adap), 8, 23, 22, 21, 20, 52, 65, 87, + 91, + 1, AMR_OF(2, ltp), 108, + 13, AMR_OF(2, pul_il[0]), 120, 152, 168, 216, 264, 136, 104, 180, + 228, 276, 176, 224, 272, + 13, AMR_OF(2, pul_il[1]), 132, 164, 188, 236, 284, 148, 116, 184, + 232, 280, 196, 244, 292, + 13, AMR_OF(2, pul_il[2]), 128, 160, 192, 240, 288, 144, 112, 204, + 252, 300, 200, 248, 296, + 13, AMR_OF(2, pul_il[3]), 140, 172, 212, 260, 308, 156, 124, 208, + 256, 304, 220, 268, 316, + 7, AMR_OF(2, vq_gain), 2, 17, 43, 25, 37, 47, 29, + 6, AMR_OF(3, adap), 34, 53, 78, 73, 83, 100, + 1, AMR_OF(3, ltp), 107, + 13, AMR_OF(3, pul_il[0]), 135, 167, 183, 231, 279, 151, 119, 179, + 227, 275, 191, 239, 287, + 13, AMR_OF(3, pul_il[1]), 131, 163, 187, 235, 283, 147, 115, 199, + 247, 295, 195, 243, 291, + 13, AMR_OF(3, pul_il[2]), 143, 175, 207, 255, 303, 159, 127, 203, + 251, 299, 215, 263, 311, + 13, AMR_OF(3, pul_il[3]), 139, 171, 211, 259, 307, 155, 123, 223, + 271, 319, 219, 267, 315, + 7, AMR_OF(3, vq_gain), 1, 16, 42, 24, 36, 46, 28, + 0 +}; + +static const uint16_t order_MODE_18k25[] = { + 1, AMR_BIT(vad), 7, + 8, AMR_BIT(isp_id[0]), 55, 40, 14, 6, 15, 5, 0, 68, + 8, AMR_BIT(isp_id[1]), 77, 58, 75, 49, 59, 57, 67, 61, + 6, AMR_BIT(isp_id[2]), 48, 63, 51, 62, 50, 70, + 7, AMR_BIT(isp_id[3]), 71, 56, 60, 69, 85, 86, 80, + 7, AMR_BIT(isp_id[4]), 93, 64, 94, 76, 82, 81, 89, + 5, AMR_BIT(isp_id[5]), 90, 103, 88, 102, 99, + 5, AMR_BIT(isp_id[6]), 98, 97, 96, 111, 95, + 9, AMR_OF(0, adap), 13, 12, 11, 10, 9, 41, 66, 72, + 92, + 1, AMR_OF(0, ltp), 110, + 2, AMR_OF(0, pul_ih[0]), 124, 115, + 2, AMR_OF(0, pul_ih[1]), 150, 117, + 2, AMR_OF(0, pul_ih[2]), 129, 114, + 2, AMR_OF(0, pul_ih[3]), 121, 131, + 14, AMR_OF(0, pul_il[0]), 161, 257, 343, 199, 177, 303, 204, 173, + 168, 260, 277, 307, 338, 128, + 14, AMR_OF(0, pul_il[1]), 194, 286, 347, 222, 214, 316, 236, 152, + 166, 242, 284, 308, 344, 142, + 14, AMR_OF(0, pul_il[2]), 169, 273, 353, 202, 189, 311, 240, 200, + 171, 261, 309, 296, 345, 130, + 14, AMR_OF(0, pul_il[3]), 198, 275, 349, 187, 163, 282, 193, 195, + 175, 234, 265, 289, 328, 119, + 7, AMR_OF(0, vq_gain), 4, 19, 45, 27, 39, 33, 31, + 6, AMR_OF(1, adap), 35, 54, 79, 74, 84, 101, + 1, AMR_OF(1, ltp), 109, + 2, AMR_OF(1, pul_ih[0]), 139, 104, + 2, AMR_OF(1, pul_ih[1]), 135, 118, + 2, AMR_OF(1, pul_ih[2]), 112, 127, + 2, AMR_OF(1, pul_ih[3]), 140, 141, + 14, AMR_OF(1, pul_il[0]), 179, 276, 340, 225, 223, 321, 235, 190, + 182, 271, 310, 315, 352, 125, + 14, AMR_OF(1, pul_il[1]), 153, 264, 329, 232, 209, 323, 231, 165, + 191, 279, 290, 312, 367, 134, + 14, AMR_OF(1, pul_il[2]), 167, 269, 341, 205, 197, 298, 224, 160, + 170, 259, 280, 317, 357, 148, + 14, AMR_OF(1, pul_il[3]), 203, 272, 342, 227, 192, 299, 233, 172, + 183, 256, 283, 326, 355, 106, + 7, AMR_OF(1, vq_gain), 3, 18, 44, 26, 38, 32, 30, + 9, AMR_OF(2, adap), 8, 23, 22, 21, 20, 52, 65, 87, + 91, + 1, AMR_OF(2, ltp), 108, + 2, AMR_OF(2, pul_ih[0]), 144, 120, + 2, AMR_OF(2, pul_ih[1]), 157, 123, + 2, AMR_OF(2, pul_ih[2]), 145, 138, + 2, AMR_OF(2, pul_ih[3]), 132, 154, + 14, AMR_OF(2, pul_il[0]), 241, 319, 365, 252, 253, 331, 254, 230, + 220, 263, 285, 314, 364, 156, + 14, AMR_OF(2, pul_il[1]), 247, 291, 339, 249, 250, 332, 267, 196, + 207, 268, 304, 324, 356, 158, + 14, AMR_OF(2, pul_il[2]), 210, 300, 348, 243, 237, 333, 246, 206, + 219, 266, 318, 335, 363, 159, + 14, AMR_OF(2, pul_il[3]), 239, 306, 366, 221, 226, 297, 251, 184, + 178, 258, 292, 305, 346, 116, + 7, AMR_OF(2, vq_gain), 2, 17, 43, 25, 37, 47, 29, + 6, AMR_OF(3, adap), 34, 53, 78, 73, 83, 100, + 1, AMR_OF(3, ltp), 107, + 2, AMR_OF(3, pul_ih[0]), 143, 126, + 2, AMR_OF(3, pul_ih[1]), 137, 122, + 2, AMR_OF(3, pul_ih[2]), 149, 105, + 2, AMR_OF(3, pul_ih[3]), 133, 136, + 14, AMR_OF(3, pul_il[0]), 162, 287, 337, 244, 229, 322, 218, 180, + 186, 262, 274, 288, 351, 146, + 14, AMR_OF(3, pul_il[1]), 212, 294, 358, 248, 228, 334, 215, 174, + 176, 270, 293, 301, 354, 147, + 14, AMR_OF(3, pul_il[2]), 185, 327, 336, 211, 213, 313, 245, 181, + 188, 255, 281, 325, 350, 151, + 14, AMR_OF(3, pul_il[3]), 201, 295, 359, 216, 208, 320, 238, 164, + 155, 217, 278, 302, 330, 113, + 7, AMR_OF(3, vq_gain), 1, 16, 42, 24, 36, 46, 28, + 0 +}; + +static const uint16_t order_MODE_19k85[] = { + 1, AMR_BIT(vad), 7, + 8, AMR_BIT(isp_id[0]), 55, 40, 14, 6, 15, 5, 0, 68, + 8, AMR_BIT(isp_id[1]), 77, 58, 75, 49, 59, 57, 67, 61, + 6, AMR_BIT(isp_id[2]), 48, 63, 51, 62, 50, 70, + 7, AMR_BIT(isp_id[3]), 71, 56, 60, 69, 85, 86, 80, + 7, AMR_BIT(isp_id[4]), 93, 64, 94, 76, 82, 81, 89, + 5, AMR_BIT(isp_id[5]), 90, 103, 88, 102, 99, + 5, AMR_BIT(isp_id[6]), 98, 97, 96, 111, 95, + 9, AMR_OF(0, adap), 13, 12, 11, 10, 9, 41, 66, 72, + 92, + 1, AMR_OF(0, ltp), 110, + 10, AMR_OF(0, pul_ih[0]), 134, 153, 263, 342, 399, 154, 106, 177, + 317, 265, + 10, AMR_OF(0, pul_ih[1]), 128, 167, 270, 351, 385, 160, 105, 213, + 329, 259, + 2, AMR_OF(0, pul_ih[2]), 123, 147, + 2, AMR_OF(0, pul_ih[3]), 131, 143, + 10, AMR_OF(0, pul_il[0]), 346, 118, 170, 201, 296, 368, 250, 284, + 341, 391, + 10, AMR_OF(0, pul_il[1]), 345, 104, 166, 196, 281, 374, 242, 269, + 327, 390, + 14, AMR_OF(0, pul_il[2]), 141, 171, 291, 364, 229, 210, 308, 228, + 206, 200, 258, 295, 313, 361, + 14, AMR_OF(0, pul_il[3]), 144, 188, 282, 366, 217, 216, 309, 218, + 193, 182, 245, 287, 300, 367, + 7, AMR_OF(0, vq_gain), 4, 19, 45, 27, 39, 33, 31, + 6, AMR_OF(1, adap), 35, 54, 79, 74, 84, 101, + 1, AMR_OF(1, ltp), 109, + 10, AMR_OF(1, pul_ih[0]), 139, 169, 267, 348, 389, 163, 116, 189, + 343, 268, + 10, AMR_OF(1, pul_ih[1]), 120, 161, 249, 339, 397, 152, 114, 230, + 334, 303, + 2, AMR_OF(1, pul_ih[2]), 125, 138, + 2, AMR_OF(1, pul_ih[3]), 112, 129, + 10, AMR_OF(1, pul_il[0]), 349, 122, 162, 203, 288, 372, 278, 274, + 312, 377, + 10, AMR_OF(1, pul_il[1]), 357, 126, 165, 214, 298, 362, 252, 260, + 321, 378, + 14, AMR_OF(1, pul_il[2]), 150, 199, 266, 355, 211, 180, 285, 241, + 195, 198, 243, 275, 323, 375, + 14, AMR_OF(1, pul_il[3]), 142, 191, 256, 353, 208, 220, 314, 237, + 190, 212, 255, 304, 318, 371, + 7, AMR_OF(1, vq_gain), 3, 18, 44, 26, 38, 32, 30, + 9, AMR_OF(2, adap), 8, 23, 22, 21, 20, 52, 65, 87, + 91, + 1, AMR_OF(2, ltp), 108, + 10, AMR_OF(2, pul_ih[0]), 159, 168, 302, 356, 395, 178, 132, 185, + 330, 286, + 10, AMR_OF(2, pul_ih[1]), 158, 181, 292, 358, 396, 176, 133, 235, + 331, 276, + 2, AMR_OF(2, pul_ih[2]), 130, 157, + 2, AMR_OF(2, pul_ih[3]), 124, 136, + 10, AMR_OF(2, pul_il[0]), 354, 121, 194, 246, 322, 379, 272, 273, + 332, 398, + 10, AMR_OF(2, pul_il[1]), 359, 140, 186, 236, 333, 376, 290, 301, + 338, 387, + 14, AMR_OF(2, pul_il[2]), 155, 227, 319, 369, 253, 254, 350, 248, + 224, 239, 240, 293, 315, 383, + 14, AMR_OF(2, pul_il[3]), 156, 209, 297, 373, 225, 215, 326, 247, + 197, 184, 232, 289, 310, 365, + 7, AMR_OF(2, vq_gain), 2, 17, 43, 25, 37, 47, 29, + 6, AMR_OF(3, adap), 34, 53, 78, 73, 83, 100, + 1, AMR_OF(3, ltp), 107, + 10, AMR_OF(3, pul_ih[0]), 148, 164, 264, 340, 388, 183, 117, 205, + 336, 261, + 10, AMR_OF(3, pul_ih[1]), 146, 174, 257, 335, 384, 173, 113, 187, + 320, 279, + 2, AMR_OF(3, pul_ih[2]), 127, 151, + 2, AMR_OF(3, pul_ih[3]), 119, 137, + 10, AMR_OF(3, pul_il[0]), 352, 135, 172, 238, 306, 381, 262, 271, + 328, 382, + 10, AMR_OF(3, pul_il[1]), 347, 115, 179, 219, 305, 380, 277, 294, + 337, 386, + 14, AMR_OF(3, pul_il[2]), 145, 192, 307, 370, 234, 223, 324, 244, + 202, 204, 251, 299, 325, 360, + 14, AMR_OF(3, pul_il[3]), 149, 221, 311, 363, 226, 222, 316, 231, + 207, 175, 233, 280, 283, 344, + 7, AMR_OF(3, vq_gain), 1, 16, 42, 24, 36, 46, 28, + 0 +}; + +static const uint16_t order_MODE_23k05[] = { + 1, AMR_BIT(vad), 7, + 8, AMR_BIT(isp_id[0]), 55, 40, 14, 6, 15, 5, 0, 68, + 8, AMR_BIT(isp_id[1]), 77, 58, 75, 49, 59, 57, 67, 61, + 6, AMR_BIT(isp_id[2]), 48, 63, 51, 62, 50, 70, + 7, AMR_BIT(isp_id[3]), 71, 56, 60, 69, 85, 86, 80, + 7, AMR_BIT(isp_id[4]), 93, 64, 94, 76, 82, 81, 89, + 5, AMR_BIT(isp_id[5]), 90, 103, 88, 102, 99, + 5, AMR_BIT(isp_id[6]), 98, 97, 96, 111, 95, + 9, AMR_OF(0, adap), 13, 12, 11, 10, 9, 41, 66, 72, + 92, + 1, AMR_OF(0, ltp), 110, + 11, AMR_OF(0, pul_ih[0]), 118, 129, 131, 153, 170, 282, 298, 210, + 191, 357, 317, + 11, AMR_OF(0, pul_ih[1]), 126, 146, 135, 165, 187, 273, 345, 295, + 172, 338, 340, + 11, AMR_OF(0, pul_ih[2]), 119, 137, 141, 167, 208, 304, 366, 256, + 177, 339, 328, + 11, AMR_OF(0, pul_ih[3]), 116, 130, 120, 166, 190, 252, 311, 239, + 173, 343, 318, + 11, AMR_OF(0, pul_il[0]), 245, 180, 342, 424, 259, 277, 266, 380, + 398, 423, 440, + 11, AMR_OF(0, pul_il[1]), 218, 207, 367, 434, 201, 240, 275, 363, + 399, 419, 452, + 11, AMR_OF(0, pul_il[2]), 274, 188, 348, 425, 242, 204, 262, 365, + 402, 431, 463, + 11, AMR_OF(0, pul_il[3]), 221, 183, 337, 439, 243, 216, 251, 354, + 390, 411, 462, + 7, AMR_OF(0, vq_gain), 4, 19, 45, 27, 39, 33, 31, + 6, AMR_OF(1, adap), 35, 54, 79, 74, 84, 101, + 1, AMR_OF(1, ltp), 109, + 11, AMR_OF(1, pul_ih[0]), 115, 140, 142, 161, 230, 291, 351, 235, + 181, 293, 310, + 11, AMR_OF(1, pul_ih[1]), 104, 138, 132, 162, 211, 315, 347, 233, + 176, 320, 329, + 11, AMR_OF(1, pul_ih[2]), 106, 134, 125, 154, 205, 267, 306, 220, + 185, 330, 297, + 11, AMR_OF(1, pul_ih[3]), 105, 148, 122, 152, 215, 302, 350, 254, + 178, 319, 313, + 11, AMR_OF(1, pul_il[0]), 269, 189, 382, 432, 272, 228, 263, 383, + 406, 422, 453, + 11, AMR_OF(1, pul_il[1]), 286, 206, 377, 446, 226, 222, 265, 368, + 404, 416, 454, + 11, AMR_OF(1, pul_il[2]), 247, 195, 358, 445, 224, 236, 309, 341, + 375, 408, 449, + 11, AMR_OF(1, pul_il[3]), 225, 192, 359, 436, 250, 258, 290, 389, + 400, 420, 448, + 7, AMR_OF(1, vq_gain), 3, 18, 44, 26, 38, 32, 30, + 9, AMR_OF(2, adap), 8, 23, 22, 21, 20, 52, 65, 87, + 91, + 1, AMR_OF(2, ltp), 108, + 11, AMR_OF(2, pul_ih[0]), 139, 144, 145, 169, 234, 327, 395, 299, + 244, 356, 379, + 11, AMR_OF(2, pul_ih[1]), 127, 156, 158, 171, 231, 308, 397, 355, + 261, 371, 335, + 11, AMR_OF(2, pul_ih[2]), 123, 155, 157, 193, 241, 362, 384, 323, + 238, 392, 361, + 11, AMR_OF(2, pul_ih[3]), 114, 147, 121, 175, 196, 333, 373, 303, + 184, 353, 322, + 11, AMR_OF(2, pul_il[0]), 271, 203, 385, 442, 307, 276, 334, 405, + 412, 427, 459, + 11, AMR_OF(2, pul_il[1]), 278, 200, 388, 447, 292, 288, 296, 403, + 415, 429, 460, + 11, AMR_OF(2, pul_il[2]), 312, 214, 393, 433, 279, 301, 314, 391, + 410, 426, 450, + 11, AMR_OF(2, pul_il[3]), 280, 186, 376, 437, 268, 260, 255, 364, + 414, 417, 441, + 7, AMR_OF(2, vq_gain), 2, 17, 43, 25, 37, 47, 29, + 6, AMR_OF(3, adap), 34, 53, 78, 73, 83, 100, + 1, AMR_OF(3, ltp), 107, + 11, AMR_OF(3, pul_ih[0]), 112, 159, 143, 164, 213, 281, 332, 284, + 168, 344, 325, + 11, AMR_OF(3, pul_ih[1]), 113, 150, 149, 179, 199, 316, 324, 285, + 237, 360, 336, + 11, AMR_OF(3, pul_ih[2]), 124, 136, 151, 174, 209, 326, 349, 248, + 198, 374, 331, + 11, AMR_OF(3, pul_ih[3]), 117, 128, 133, 163, 202, 300, 372, 305, + 194, 387, 321, + 11, AMR_OF(3, pul_il[0]), 249, 182, 352, 428, 253, 264, 289, 413, + 407, 418, 461, + 11, AMR_OF(3, pul_il[1]), 287, 212, 369, 444, 223, 246, 217, 346, + 394, 401, 451, + 11, AMR_OF(3, pul_il[2]), 219, 197, 378, 435, 229, 257, 283, 396, + 409, 430, 455, + 11, AMR_OF(3, pul_il[3]), 232, 160, 370, 438, 227, 270, 294, 381, + 386, 421, 443, + 7, AMR_OF(3, vq_gain), 1, 16, 42, 24, 36, 46, 28, + 0 +}; + +static const uint16_t order_MODE_23k85[] = { + 1, AMR_BIT(vad), 7, + 8, AMR_BIT(isp_id[0]), 55, 40, 14, 6, 15, 5, 0, 68, + 8, AMR_BIT(isp_id[1]), 93, 58, 91, 49, 59, 57, 67, 61, + 6, AMR_BIT(isp_id[2]), 48, 63, 51, 62, 50, 70, + 7, AMR_BIT(isp_id[3]), 71, 56, 60, 69, 101, 102, 96, + 7, AMR_BIT(isp_id[4]), 109, 64, 110, 92, 98, 97, 105, + 5, AMR_BIT(isp_id[5]), 106, 119, 104, 118, 115, + 5, AMR_BIT(isp_id[6]), 114, 113, 112, 127, 111, + 9, AMR_OF(0, adap), 13, 12, 11, 10, 9, 41, 66, 88, + 108, + 1, AMR_OF(0, ltp), 126, + 11, AMR_OF(0, pul_ih[0]), 134, 145, 147, 169, 186, 298, 314, 226, + 207, 373, 333, + 11, AMR_OF(0, pul_ih[1]), 142, 162, 151, 181, 203, 289, 361, 311, + 188, 354, 356, + 11, AMR_OF(0, pul_ih[2]), 135, 153, 157, 183, 224, 320, 382, 272, + 193, 355, 344, + 11, AMR_OF(0, pul_ih[3]), 132, 146, 136, 182, 206, 268, 327, 255, + 189, 359, 334, + 11, AMR_OF(0, pul_il[0]), 261, 196, 358, 440, 275, 293, 282, 396, + 414, 439, 456, + 11, AMR_OF(0, pul_il[1]), 234, 223, 383, 450, 217, 256, 291, 379, + 415, 435, 468, + 11, AMR_OF(0, pul_il[2]), 290, 204, 364, 441, 258, 220, 278, 381, + 418, 447, 479, + 11, AMR_OF(0, pul_il[3]), 237, 199, 353, 455, 259, 232, 267, 370, + 406, 427, 478, + 7, AMR_OF(0, vq_gain), 4, 19, 45, 27, 39, 33, 31, + 4, AMR_OF(0, hb_gain), 79, 78, 77, 76, + 6, AMR_OF(1, adap), 35, 54, 95, 90, 100, 117, + 1, AMR_OF(1, ltp), 125, + 11, AMR_OF(1, pul_ih[0]), 131, 156, 158, 177, 246, 307, 367, 251, + 197, 309, 326, + 11, AMR_OF(1, pul_ih[1]), 120, 154, 148, 178, 227, 331, 363, 249, + 192, 336, 345, + 11, AMR_OF(1, pul_ih[2]), 122, 150, 141, 170, 221, 283, 322, 236, + 201, 346, 313, + 11, AMR_OF(1, pul_ih[3]), 121, 164, 138, 168, 231, 318, 366, 270, + 194, 335, 329, + 11, AMR_OF(1, pul_il[0]), 285, 205, 398, 448, 288, 244, 279, 399, + 422, 438, 469, + 11, AMR_OF(1, pul_il[1]), 302, 222, 393, 462, 242, 238, 281, 384, + 420, 432, 470, + 11, AMR_OF(1, pul_il[2]), 263, 211, 374, 461, 240, 252, 325, 357, + 391, 424, 465, + 11, AMR_OF(1, pul_il[3]), 241, 208, 375, 452, 266, 274, 306, 405, + 416, 436, 464, + 7, AMR_OF(1, vq_gain), 3, 18, 44, 26, 38, 32, 30, + 4, AMR_OF(1, hb_gain), 75, 74, 73, 72, + 9, AMR_OF(2, adap), 8, 23, 22, 21, 20, 52, 65, 103, + 107, + 1, AMR_OF(2, ltp), 124, + 11, AMR_OF(2, pul_ih[0]), 155, 160, 161, 185, 250, 343, 411, 315, + 260, 372, 395, + 11, AMR_OF(2, pul_ih[1]), 143, 172, 174, 187, 247, 324, 413, 371, + 277, 387, 351, + 11, AMR_OF(2, pul_ih[2]), 139, 171, 173, 209, 257, 378, 400, 339, + 254, 408, 377, + 11, AMR_OF(2, pul_ih[3]), 130, 163, 137, 191, 212, 349, 389, 319, + 200, 369, 338, + 11, AMR_OF(2, pul_il[0]), 287, 219, 401, 458, 323, 292, 350, 421, + 428, 443, 475, + 11, AMR_OF(2, pul_il[1]), 294, 216, 404, 463, 308, 304, 312, 419, + 431, 445, 476, + 11, AMR_OF(2, pul_il[2]), 328, 230, 409, 449, 295, 317, 330, 407, + 426, 442, 466, + 11, AMR_OF(2, pul_il[3]), 296, 202, 392, 453, 284, 276, 271, 380, + 430, 433, 457, + 7, AMR_OF(2, vq_gain), 2, 17, 43, 25, 37, 47, 29, + 4, AMR_OF(2, hb_gain), 87, 86, 85, 84, + 6, AMR_OF(3, adap), 34, 53, 94, 89, 99, 116, + 1, AMR_OF(3, ltp), 123, + 11, AMR_OF(3, pul_ih[0]), 128, 175, 159, 180, 229, 297, 348, 300, + 184, 360, 341, + 11, AMR_OF(3, pul_ih[1]), 129, 166, 165, 195, 215, 332, 340, 301, + 253, 376, 352, + 11, AMR_OF(3, pul_ih[2]), 140, 152, 167, 190, 225, 342, 365, 264, + 214, 390, 347, + 11, AMR_OF(3, pul_ih[3]), 133, 144, 149, 179, 218, 316, 388, 321, + 210, 403, 337, + 11, AMR_OF(3, pul_il[0]), 265, 198, 368, 444, 269, 280, 305, 429, + 423, 434, 477, + 11, AMR_OF(3, pul_il[1]), 303, 228, 385, 460, 239, 262, 233, 362, + 410, 417, 467, + 11, AMR_OF(3, pul_il[2]), 235, 213, 394, 451, 245, 273, 299, 412, + 425, 446, 471, + 11, AMR_OF(3, pul_il[3]), 248, 176, 386, 454, 243, 286, 310, 397, + 402, 437, 459, + 7, AMR_OF(3, vq_gain), 1, 16, 42, 24, 36, 46, 28, + 4, AMR_OF(3, hb_gain), 83, 82, 81, 80, + 0 +}; + +/** Reordering array addresses for each mode */ +static const uint16_t* amr_bit_orderings_by_mode[] = { + order_MODE_6k60, + order_MODE_8k85, + order_MODE_12k65, + order_MODE_14k25, + order_MODE_15k85, + order_MODE_18k25, + order_MODE_19k85, + order_MODE_23k05, + order_MODE_23k85 +}; + +// Extracted from 3GPP TS 26.173 V9.0.0 (qpisf_2s.tab) +// The *_36b tables are used in 6k60 mode +// Stored in fixed-point to save some space +/** Indexed tables for retrieval of quantized ISF vectors in Q15 */ +static const int16_t dico1_isf[256][9] = { + { 579, 1081, 1035, 390, 3, -263, -198, -82, 38}, + { 18, -68, -12, 313, 761, 405, 249, 111, -76}, + { 740, 1263, 1292, 1006, 997, 1019, 1017, 976, 923}, + { -91, 827, 948, 648, 613, 535, 522, 490, 421}, + { 41, -44, -281, -472, 652, 534, 193, 135, -90}, + { 41, -121, -356, -60, 663, 307, 61, -48, -344}, + { 557, 946, 1049, 867, 846, 990, 1112, 1262, 1241}, + { -118, -204, 328, 512, 870, 793, 610, 402, 186}, + { 156, 293, 74, -338, -475, -897, -594, -161, -497}, + { 226, 131, -138, 307, 169, -271, -164, -387, -624}, + { 62, -32, -61, -252, -541, -828, -1027, -523, -662}, + { 102, -61, 141, 112, -270, -251, -541, 25, -150}, + { 6, -132, -356, -686, -96, -322, -522, -31, -326}, + { -36, -209, -521, -229, 307, -132, -5, -99, -384}, + { 60, -51, -237, -668, -973, -407, -708, -75, -172}, + { 26, -138, -266, 111, -302, 43, -278, -356, -359}, + { 570, 822, 496, -154, -312, -92, 137, 279, 371}, + { -146, 368, 409, 68, 6, 77, 167, 202, 162}, + { 633, 898, 996, 756, 662, 683, 783, 909, 996}, + { -103, 294, 607, 415, 483, 462, 480, 431, 408}, + { -120, -338, -612, -524, 584, 331, 92, 433, 276}, + { -178, -293, -154, -41, 269, 100, -9, 213, 160}, + { 830, 736, 278, 820, 1254, 686, 712, 1039, 473}, + { -218, -304, 463, 454, 397, 273, 202, 286, 273}, + { -232, 7, 6, -388, -472, -427, -378, -167, -100}, + { -294, -183, 134, -47, 101, -88, -84, -117, -3}, + { 57, 17, -202, -634, -989, -1119, -533, 176, -36}, + { 120, -28, 23, 111, -319, 318, -22, -77, 266}, + { -271, -464, -434, -658, -640, -385, -385, -99, -69}, + { -198, -259, -266, -44, -39, -139, -137, 171, 66}, + { 9, -145, -377, -846, -1000, -111, -325, 342, 135}, + { -81, -286, -380, 192, -57, 307, 76, -24, -140}, + { 677, 702, 247, 56, 249, 141, -105, -236, -99}, + { 36, -39, -69, 348, 198, -93, 322, 91, -72}, + { 503, 885, 1508, 1307, 1282, 1172, 1119, 1209, 1061}, + { 416, 719, 989, 1227, 1001, 1052, 954, 741, 1044}, + { -127, -376, -657, 139, 623, 223, 501, 306, 220}, + { -113, -384, -796, 504, 438, 85, 213, -83, -194}, + { 585, 1132, 1233, 1091, 1247, 1433, 1512, 1448, 1314}, + { -174, -422, 7, 1155, 1089, 1182, 1003, 945, 806}, + { 8, -126, -317, -103, -351, -695, -98, -268, -537}, + { 33, -103, -290, 167, -39, -407, 44, -208, -375}, + { 104, -23, -64, -291, -637, -851, -1084, -61, -112}, + { -75, -306, -434, 218, -148, -354, -680, -133, -216}, + { -121, -377, -718, -97, -130, -361, -156, -379, -599}, + { -56, -254, -586, 235, 157, -214, 11, -260, -149}, + { -124, -267, -397, -580, -593, -527, -805, -385, 346}, + { -193, -440, -708, -351, -141, -255, -499, -147, -185}, + { 448, 660, 494, 208, 509, 461, 338, 291, 149}, + { -223, 88, 335, 159, 212, 191, 286, 308, 205}, + { -31, 469, 803, 659, 619, 658, 843, 987, 1113}, + { -171, -242, 514, 362, 295, 524, 552, 694, 585}, + { -64, -308, -448, -21, 284, 786, 446, 289, 92}, + { -218, -390, -7, 169, 206, 330, 352, 408, 358}, + { -36, 702, 959, 859, 861, 1115, 1269, 1357, 1305}, + { -133, -341, -65, 678, 417, 440, 486, 518, 780}, + { 33, -44, -191, -344, -461, -755, -201, 217, -31}, + { -353, -547, -44, 123, -61, -68, -79, 29, 60}, + { 73, -57, -406, -766, -1243, -1203, 240, 400, 165}, + { -73, -282, -601, -213, -171, -375, 332, 35, -103}, + { -29, -207, -553, -476, -638, -908, 172, -22, -135}, + { -192, -239, -164, -103, -111, -47, 153, 125, 110}, + { -1, -203, -570, -1030, -1424, -535, 155, 1, 147}, + { -333, -653, -865, -197, -158, -21, -44, 95, 108}, + { 389, 588, 490, 33, -237, -524, -628, -136, -260}, + { 40, -177, -462, 453, 862, 380, 131, -130, -405}, + { 842, 1678, 1841, 1549, 1474, 1256, 1082, 905, 742}, + { 370, 1216, 1768, 1633, 1212, 636, 22, -330, 71}, + { -76, -281, -741, -742, 898, 619, 277, 71, -222}, + { -32, -265, -556, -25, 994, 682, 305, 126, -165}, + { 73, 738, 893, 968, 993, 1768, 2273, 1840, 1391}, + { -69, -349, -585, 234, 1158, 903, 626, 510, 251}, + { -1, -99, -272, -210, -603, -351, -540, -811, -383}, + { -16, -230, -504, 410, 149, -205, -343, -651, -639}, + { 103, -9, -227, -205, -562, -781, -1079, -1208, -156}, + { 143, 63, -135, -67, -317, -602, -784, -1154, -640}, + { -144, -391, -674, -622, -200, -254, -660, -947, -395}, + { -40, -250, -625, 27, 543, 94, -131, -386, -673}, + { -123, -371, -757, -451, -564, -614, -415, -711, -35}, + { -116, -309, -593, -268, 239, -33, -338, -650, -135}, + { 94, 251, 554, 57, -312, -423, -154, -57, 235}, + { -268, -71, 381, 114, -44, -87, 125, 173, 133}, + { 1513, 1714, 1238, 534, 276, 315, 461, 459, 508}, + { -131, -19, 1149, 670, 486, 356, 309, 369, 296}, + { -223, -501, -899, -722, -70, 6, 131, 310, 394}, + { -99, -303, -517, 249, 64, -53, 135, -11, 453}, + { -147, -399, -730, -401, 817, 738, 802, 749, 575}, + { -154, -435, -739, 800, 593, 366, 529, 318, 326}, + { -224, 45, -39, -387, -515, -518, -608, -384, -321}, + { -315, -377, 143, -101, -113, -377, -177, -144, -12}, + { 117, 40, -239, -651, -1051, -581, -737, -990, -328}, + { 26, -50, -157, -23, -453, -283, -531, -546, 192}, + { -252, -501, -743, -589, -627, -499, -328, -118, -72}, + { -324, -494, -244, -306, -144, -177, -262, -135, -78}, + { -36, -234, -519, -961, -1290, -314, -479, -371, -45}, + { -95, -292, -535, -8, -300, 112, -164, -277, 198}, + { -99, -128, 880, 836, 579, 351, 23, -95, -217}, + { -27, -258, 124, 1011, 597, 425, 144, 7, -73}, + { 421, 1293, 1640, 1623, 1742, 1617, 1499, 1284, 1006}, + { -95, 752, 1680, 1569, 1618, 1436, 1200, 980, 712}, + { -69, -300, -683, -435, 1132, 899, 504, 332, 109}, + { -74, -323, -637, 563, 1074, 608, 371, 105, -49}, + { -78, 831, 1194, 1110, 1378, 1481, 1492, 1365, 1217}, + { -259, -121, 1440, 1334, 1628, 1490, 1438, 1223, 933}, + { -82, -306, -613, -222, -378, -675, -545, -671, -845}, + { 53, -124, -347, 422, 52, -125, -270, -529, 9}, + { 79, -89, -320, -662, -999, -1199, -1243, -676, -297}, + { -68, -273, -611, 137, -146, -397, -627, -845, -220}, + { -112, -346, -797, -826, 234, -132, -188, -278, -522}, + { -159, -405, -734, -419, 293, 74, -167, -167, 184}, + { -153, -437, -833, -1080, -336, -472, -561, -340, -253}, + { -169, -423, -820, -904, -131, -19, -346, -604, 31}, + { 33, -31, 312, 62, -148, 49, -59, 564, 486}, + { -306, -333, 194, -44, 67, 72, 147, 205, 243}, + { -207, -49, 1360, 983, 969, 991, 1014, 1110, 973}, + { -211, -172, 883, 627, 711, 674, 705, 798, 746}, + { -88, -325, -763, -974, 687, 908, 514, 382, 172}, + { -292, -612, -805, 63, 131, 270, 259, 352, 348}, + { -235, -84, 955, 818, 1120, 1289, 1559, 1480, 1285}, + { -180, -461, -614, 657, 691, 745, 854, 783, 713}, + { -97, -309, -477, -614, -777, -734, -768, -526, -472}, + { -344, -476, -35, -169, 49, -77, -150, -240, -141}, + { -52, -268, -639, -919, -1278, -1113, -342, -333, -151}, + { -68, -242, -585, -73, -209, -478, -159, -429, 133}, + { -197, -499, -1005, -1268, -272, -224, -105, -67, 17}, + { -363, -618, -414, -116, -62, 20, 10, 116, 108}, + { -195, -475, -906, -1260, -891, -441, -277, -142, -28}, + { -226, -519, -950, -700, -275, -266, -116, -105, 82}, + { 404, 511, 520, 327, 17, -194, -333, -536, -586}, + { -114, -130, 276, 237, 204, 342, 135, -16, -111}, + { 670, 1208, 1168, 860, 742, 601, 528, 403, 309}, + { 397, 621, 966, 752, 579, 398, 400, 329, 252}, + { 191, 180, -137, -467, 272, 106, -95, 17, -192}, + { -80, -290, -626, 194, 598, 196, 21, -281, 77}, + { 510, 864, 1108, 807, 939, 902, 925, 717, 481}, + { 137, 367, 534, 764, 670, 382, 296, 153, 84}, + { 303, 497, 144, -85, -125, -539, -482, -464, -764}, + { 233, 347, 68, -147, 169, -210, -242, -226, -482}, + { 307, 422, 154, -175, -386, -722, -724, -904, -1015}, + { 309, 308, 160, -60, -470, -420, -598, -791, -219}, + { 68, 121, -137, -560, -146, -446, -515, -494, -729}, + { 130, 53, -227, 46, 474, 32, -161, -192, -490}, + { 213, 164, -71, -465, -876, -161, -456, -587, -48}, + { 218, 117, 39, 177, -194, -88, -226, -418, 50}, + { 210, 547, 569, 279, 121, -44, -50, 10, -84}, + { 58, 140, 182, -5, 267, 117, 106, 211, 198}, + { 539, 835, 913, 719, 617, 544, 591, 565, 642}, + { 153, 559, 872, 460, 222, 108, 188, 180, 183}, + { 158, 119, 284, -153, -271, 229, 87, 110, -57}, + { -183, 82, 118, 21, 13, 40, 118, 191, 185}, + { 162, 889, 654, 108, -34, 244, 488, 561, 532}, + { 163, 56, 609, 341, 50, 329, 68, 266, 218}, + { 100, 206, 18, -304, -107, -436, -487, -65, -306}, + { -86, 154, 134, -30, -45, -73, -104, -80, -96}, + { 245, 330, 10, -440, -849, -1082, 79, 40, -265}, + { 196, 372, 272, -181, -493, -389, 275, 80, -59}, + { 2, -12, -246, -505, -100, -436, 21, -187, -431}, + { -221, -48, 36, -271, -186, -147, -109, 26, 71}, + { 213, 140, 72, -351, -620, -84, -363, 69, 46}, + { 91, 167, -3, -95, -99, -105, -48, 114, 147}, + { 259, 249, 172, 607, 406, 52, 59, -189, -320}, + { 115, -85, -54, 574, 128, 226, -59, -253, 130}, + { -62, 1033, 1308, 1035, 1127, 1098, 1029, 961, 823}, + { 39, 364, 757, 940, 728, 660, 659, 583, 770}, + { -115, -338, -760, -471, 394, 37, 441, 178, 6}, + { -57, -305, -525, 796, 453, 188, -4, -114, 248}, + { 71, 444, 797, 731, 1096, 1157, 1222, 1029, 811}, + { 135, 359, 551, 425, 749, 815, 874, 704, 502}, + { 132, 247, 0, -206, -449, -750, -258, -514, -633}, + { 248, 249, 91, 121, -195, -499, -90, -282, -435}, + { 78, 20, -277, -623, -983, -1224, -415, -458, -639}, + { 347, 509, 208, -179, -464, -728, -76, -237, -486}, + { -103, -343, -756, -713, -265, -609, -191, -398, -636}, + { -121, -383, -749, 567, 252, -36, -354, -417, -50}, + { 204, 100, -149, -650, -1081, -47, -7, -263, 111}, + { -46, -180, -267, -324, -562, -394, -692, 398, 292}, + { 482, 670, 683, 624, 442, 165, 116, 36, -149}, + { 108, 247, 291, 247, 355, 122, 109, 224, 296}, + { -14, 945, 990, 801, 755, 815, 847, 913, 892}, + { 292, 349, 725, 482, 388, 329, 429, 620, 667}, + { -34, 197, 213, -127, 84, 494, 620, 575, 375}, + { 126, 207, 172, 167, 362, 202, 296, 395, 455}, + { -6, 250, 539, 467, 636, 801, 1149, 1287, 1118}, + { 27, 240, 369, 280, 440, 411, 634, 892, 953}, + { 159, 170, -58, -395, -797, -690, 77, -211, -334}, + { -5, -28, -13, -74, -335, -603, 300, 88, -205}, + { 82, -33, -364, -698, -1203, -1153, 110, -146, -289}, + { 113, 1, -243, -588, -994, -496, 414, 160, 42}, + { -56, -247, -440, -693, -996, -479, 11, -178, -357}, + { -151, -353, -327, -211, -340, 141, 65, 425, 453}, + { 34, -169, -455, -932, -1215, 138, 499, 256, 324}, + { 68, 139, -15, -547, -478, 17, 306, 502, 481}, + { -32, -134, 445, 129, -143, -244, -503, -507, -599}, + { 61, -140, -345, 496, 458, -2, 20, -227, -514}, + { 394, 1765, 1666, 1339, 1117, 806, 642, 479, 380}, + { 215, 519, 920, 1053, 1090, 791, 528, 290, 155}, + { -54, -233, -647, -602, 639, 294, -2, -167, -442}, + { -78, -315, -791, -113, 820, 403, 158, -116, -356}, + { 529, 1851, 2003, 1228, 622, -41, -416, 344, 819}, + { -105, -379, -236, 1224, 893, 749, 568, 356, 214}, + { -17, -199, -144, 50, -283, -247, -578, -846, -1087}, + { 69, -11, -381, -206, 209, -284, -387, -416, -716}, + { 39, -5, -145, -374, -682, -909, -1074, -1169, -1066}, + { 287, 226, 67, -221, -662, -171, -421, -642, -707}, + { -132, -348, -538, -448, -20, -4, -354, -748, -933}, + { 4, -75, -289, -598, 317, 52, -208, -297, -559}, + { -88, -264, -358, -589, -631, -248, -523, -822, -1071}, + { 70, -8, 54, -314, -515, 92, -146, -274, -493}, + { 199, 62, 391, 158, -141, 71, -219, -203, -207}, + { 152, 40, 329, 162, -29, 48, -149, 108, 127}, + { 635, 1058, 883, 492, 372, 312, 317, 274, 241}, + { 267, 722, 1256, 882, 625, 248, 8, -81, -60}, + { -58, -138, -291, -600, -12, -2, -39, 147, 117}, + { -107, -345, -513, 459, 76, 92, -272, 388, 262}, + { 362, 516, 203, -409, -716, -831, -331, 185, 209}, + { -117, -391, -298, 671, 292, 538, 257, 166, -38}, + { -102, -319, -194, -283, -573, -262, -579, -219, -444}, + { -235, 78, 11, -168, -101, -229, -263, -321, -123}, + { 70, 50, -170, -599, -996, -588, -263, -516, -455}, + { 394, 363, 229, -136, -538, 21, -183, -348, -201}, + { -124, -368, -640, -879, -847, -209, -409, -494, -515}, + { -127, -341, -541, -425, -510, -10, -252, -473, -291}, + { 84, -69, -201, -676, -868, 103, -311, -132, -320}, + { 5, -173, -188, -297, -628, 197, -57, 7, -11}, + { 49, -160, 56, 558, 111, 33, -311, -440, -463}, + { -1, -246, -307, 862, 453, 139, -170, -355, -232}, + { 279, 966, 1642, 1478, 1463, 1123, 795, 525, 339}, + { -197, -38, 1702, 1331, 1252, 950, 692, 504, 426}, + { -108, -344, -861, -1172, 444, 354, 88, -46, -220}, + { -53, -321, -494, 1113, 744, 364, 198, -34, -75}, + { 457, 955, 1177, 1214, 1427, 1457, 1345, 917, 539}, + { -69, 199, 897, 1140, 1343, 1183, 977, 742, 522}, + { 122, 44, -269, 27, -155, -562, -307, -590, -773}, + { 154, 42, -160, 252, -129, -305, -471, -733, -371}, + { 135, 185, -82, -416, -722, -913, -504, -743, -880}, + { 149, 214, -84, -329, -680, -835, -426, -661, -81}, + { -128, -380, -735, -998, -337, 17, -182, -467, -697}, + { -84, -290, -510, -592, 13, 440, 154, -38, -279}, + { 70, -61, -246, -727, -1047, -80, -381, -535, -704}, + { 178, -2, -146, -670, -938, 482, 138, 63, 65}, + { -11, 15, 772, 443, 142, -20, -209, -126, -161}, + { -32, -249, 95, 552, 124, 30, -343, 82, -86}, + { 148, 751, 1515, 1105, 867, 606, 474, 448, 399}, + { -163, -257, 899, 1097, 906, 751, 502, 390, 294}, + { -51, -258, -447, -806, -368, 763, 464, 364, 183}, + { -166, -374, -367, 87, 35, 399, 418, 856, 833}, + { -205, -310, 588, 778, 785, 1065, 1118, 1245, 1157}, + { -173, -312, 107, 345, 400, 790, 870, 1113, 1001}, + { -7, -120, -387, -410, -614, -943, -226, -384, -491}, + { -203, -288, -51, -331, -90, -178, -408, -573, -338}, + { 56, -29, -273, -627, -1041, -798, -247, -467, 148}, + { 66, -2, -205, -205, -575, -349, -57, -352, -58}, + { -45, -225, -471, -924, -497, 77, -32, 44, -135}, + { -277, -491, -497, -502, -424, -202, -137, 77, 96}, + { 26, -179, -469, -1008, -1260, 262, -35, -132, -259}, + { -66, -232, -447, -533, -789, -191, -100, -267, 364} +}; + +static const int16_t dico2_isf[256][7] = { + { 1357, 1313, 1136, 784, 438, 181, 145}, + { 636, 648, 667, 568, 442, 217, 362}, + { 427, 440, 674, 524, 332, 117, -417}, + { 121, 295, 468, 465, 230, 44, -221}, + { -147, -240, 149, 80, 390, 278, 106}, + { -418, -556, 552, 511, 235, 144, -95}, + { 43, 193, 274, 150, 67, 34, -273}, + { -43, -126, 171, 416, 282, 63, -354}, + { -372, -86, -344, -108, -94, -182, -89}, + { -600, -840, -200, 465, 258, -11, -253}, + { -48, 329, 97, -290, -543, -795, -354}, + { -570, -117, 187, 10, -133, -416, -76}, + { -618, -129, -247, -371, 45, -76, 277}, + { -1022, -1079, 126, 474, 254, 127, 52}, + { -281, 76, -167, -361, -283, -551, -283}, + { -119, -52, -1, 134, -32, -204, -415}, + { 1064, 827, 637, 684, 464, 209, 12}, + { 482, 416, 449, 371, 335, 294, 194}, + { 719, 576, 365, 135, 113, 91, -199}, + { 298, 176, 493, 366, 194, 163, 36}, + { -35, -236, -259, -36, -4, 99, 152}, + { -98, -306, -27, 228, 90, 111, -86}, + { 91, 13, -211, -258, -106, 86, -64}, + { 73, -35, -57, -31, 162, 35, -192}, + { -109, -335, -629, -66, -61, -128, 322}, + { -495, -669, -728, 193, 31, -220, 122}, + { 324, 95, -89, -91, -409, -710, -154}, + { 0, -234, 92, 33, -343, -609, -220}, + { -343, -408, -476, -655, -153, 82, 222}, + { -490, -745, -255, 49, -48, 135, -127}, + { 119, -67, -328, -390, -272, -545, -56}, + { -57, -130, -10, -7, -164, -47, -22}, + { 984, 1064, 961, 568, 210, -27, 16}, + { 811, 691, 754, 514, 224, -35, 166}, + { 662, 704, 618, 386, 57, -211, -257}, + { 510, 359, 418, 393, 91, -144, -18}, + { -193, -31, -27, 223, 89, -143, 24}, + { -112, -98, 471, 319, 185, 3, 175}, + { 252, 146, -47, 272, 48, -211, -234}, + { 146, 69, 203, 364, 68, -52, 51}, + { -259, -478, -697, -349, -758, -501, 63}, + { -501, -769, -289, 79, -311, -497, -106}, + { 251, 53, -235, -469, -895, -884, 145}, + { -416, -551, 140, -133, -523, -775, 44}, + { -326, -423, -713, -497, -86, -431, 99}, + { -757, -772, -160, -76, -46, -32, 379}, + { 85, -35, -200, -401, -663, -1040, -247}, + { -180, -330, -92, -376, 27, -183, -110}, + { 1279, 1086, 781, 502, 324, 164, 157}, + { 682, 466, 449, 277, 146, 28, 409}, + { 635, 472, 390, 107, -232, -538, -139}, + { 196, 396, 332, 213, 209, -29, -81}, + { 150, -95, -312, 76, -77, -320, -50}, + { 46, 9, 47, 175, 139, 30, 384}, + { 218, 206, -24, -250, -96, -276, -183}, + { 26, 119, 38, 14, -4, -133, -52}, + { -477, -614, -987, -715, -631, -813, 200}, + { -744, -1009, -1065, -745, -631, -171, 18}, + { -137, -251, -483, -613, -980, -1203, 12}, + { -605, -767, -562, -686, -1088, -515, 58}, + { -202, -428, -782, -1072, -96, -234, -179}, + { -480, -709, -1070, -897, -131, -92, 321}, + { -145, -193, -512, -729, -572, -765, -210}, + { -331, -585, -525, -631, -281, -208, -303}, + { 1165, 1104, 939, 828, 716, 426, 155}, + { 6, -109, 820, 778, 415, 113, -27}, + { 381, 339, 314, 265, 121, -9, -474}, + { -373, 47, 584, 442, 99, -231, -113}, + { -496, -38, -285, 262, 305, 170, 4}, + { -587, -556, 69, 66, 471, 354, 13}, + { -138, 70, -18, 106, 67, 167, -302}, + { -445, -141, 185, 191, 151, 83, -133}, + { -257, -521, -720, -198, 134, -46, -182}, + { -819, -1168, -777, 512, 359, 95, -113}, + { 137, -2, -74, -138, -401, -114, -371}, + { -242, -466, 204, 223, -31, -212, -192}, + { -532, -637, -466, -686, 256, 277, -139}, + { -1141, -1244, -381, -75, -54, 14, 88}, + { -311, 115, -143, -499, -343, 124, -416}, + { -616, -147, -135, 43, -4, 121, -369}, + { 835, 783, 641, 390, 355, 350, 64}, + { 72, 194, 443, 467, 436, 219, 372}, + { 464, 369, 192, 4, -156, -72, -226}, + { 57, 206, 303, 205, 188, 101, 265}, + { -40, -205, -488, -184, 276, 64, -26}, + { -217, -433, -297, 137, 328, 308, -289}, + { 378, 81, -308, -465, 57, -37, 227}, + { -100, 24, -36, -151, 199, 8, 143}, + { -426, -697, -1059, -133, 388, 161, 321}, + { -644, -1023, -1271, 39, 66, -123, 70}, + { 372, 177, -173, -556, -553, -304, -189}, + { -117, -369, -425, -122, -462, -152, -73}, + { -649, -850, -1189, -767, 497, 360, 222}, + { -798, -1139, -1455, -190, 430, 234, 179}, + { 42, -94, -405, -692, 38, -202, -246}, + { -169, -366, -290, -88, -64, 32, -292}, + { 1010, 923, 938, 710, 465, 230, 342}, + { 217, 300, 1054, 675, 68, -458, -179}, + { 78, 453, 316, 18, -237, -496, -243}, + { 167, 21, 424, 215, -91, -303, -170}, + { -290, -81, -70, -67, 40, 54, -59}, + { -353, -427, -90, 53, 94, 9, 54}, + { -28, 318, 283, 15, -240, -58, 79}, + { -75, -121, 229, 35, 58, 6, -133}, + { -351, -514, -744, -834, -705, -137, 164}, + { -1124, -1388, -1055, -230, -73, 40, 36}, + { -163, -233, -532, -785, -1170, -697, 96}, + { -788, -959, -246, -430, -624, -165, -8}, + { -856, -540, -630, -907, -337, -70, 76}, + { -937, -1042, -659, -733, -208, 199, -26}, + { -523, 78, -98, -501, -869, -890, -81}, + { -624, -703, -45, -348, -25, 87, -186}, + { 1005, 823, 546, 249, 90, -22, 207}, + { 298, 397, 381, 319, 200, 62, 303}, + { 473, 379, 133, -247, -632, -441, 75}, + { 284, 208, 391, 115, -25, 44, 95}, + { -72, 79, -95, -63, -129, -293, 203}, + { -164, -349, 115, 122, 69, -1, 378}, + { 348, 170, 99, 58, -179, -302, 188}, + { -190, -2, 150, 23, -51, -11, 216}, + { -615, -863, -1090, -1427, -802, -48, -6}, + { -961, -1276, -1548, -727, -58, 56, 223}, + { -124, -255, -561, -988, -1277, -148, -82}, + { -480, -660, -891, -1191, -1339, -325, 20}, + { -621, -917, -1296, -1350, 264, 289, 50}, + { -844, -1022, -1345, -1329, -293, 46, 278}, + { -260, -468, -829, -1176, -533, -560, -78}, + { -215, -484, -822, -1233, -791, 15, -138}, + { 1301, 1317, 1262, 1048, 716, 357, -64}, + { 578, 824, 925, 802, 630, 362, 102}, + { 470, 925, 767, 514, 327, 190, -112}, + { 225, 492, 495, 437, 598, 384, -45}, + { 43, 82, -42, 175, 519, 342, -64}, + { -304, -154, 159, 576, 403, 221, 327}, + { 214, 244, 122, -62, 312, 92, -160}, + { 218, 208, 310, 268, 306, 323, -199}, + { -285, -269, -79, -124, -143, -153, 236}, + { -205, -384, -426, 344, 59, -185, -184}, + { -272, 247, 126, -210, -518, -468, 78}, + { -99, -120, 502, 160, -280, -557, 304}, + { -423, -17, -283, -443, 215, 212, -140}, + { -564, -684, -228, 510, 361, 130, 323}, + { -428, 335, 98, -65, 36, -215, -246}, + { -362, 51, 364, -16, -234, 150, -165}, + { 914, 883, 751, 653, 676, 464, -153}, + { 631, 545, 535, 720, 596, 360, -81}, + { 783, 712, 512, 439, 341, 251, -391}, + { 497, 417, 249, 372, 295, 173, -193}, + { 128, -110, -385, 93, 39, 173, -231}, + { 216, -59, -253, 462, 389, 154, 69}, + { 455, 270, -4, -337, -49, 233, -322}, + { 307, 143, 53, 218, 128, 236, -156}, + { -37, -186, -240, -411, -110, 9, 399}, + { -140, -365, -628, 258, 380, 214, 277}, + { 131, 454, 177, -285, -520, 108, -214}, + { 77, -141, 201, -123, -490, -131, 60}, + { -14, -194, -521, -741, 273, 362, -33}, + { -362, -566, -287, -228, 161, 237, 317}, + { -269, 195, -75, -375, -204, 11, 77}, + { -128, -264, -156, -223, -475, 265, 27}, + { 1238, 1147, 916, 689, 432, 210, -280}, + { 800, 664, 879, 726, 411, 160, -164}, + { 454, 686, 536, 275, 147, 46, 111}, + { 303, 486, 512, 355, 241, 181, -69}, + { 79, 92, 29, 147, 233, 52, 17}, + { -171, 289, 131, 439, 271, 3, -10}, + { 413, 241, 144, 174, 155, -2, 14}, + { 58, 217, 247, 219, 149, 175, -18}, + { 228, -8, -240, -206, -513, -191, 202}, + { -96, -272, -454, 33, -300, -575, 46}, + { -10, -108, -246, -347, -770, -535, 9}, + { -326, -430, -61, -321, -704, -299, 201}, + { -1, -280, -603, -419, -185, 18, -36}, + { -516, -522, -379, -291, -181, -97, 27}, + { -159, -313, -525, -224, -510, -831, -197}, + { -292, -459, -59, -310, -562, -143, -351}, + { 1066, 912, 631, 389, 207, 86, -224}, + { 596, 512, 596, 505, 314, 122, -48}, + { 787, 861, 441, -93, -303, 33, -190}, + { 257, 469, 337, 51, 15, 298, -93}, + { 295, 73, -119, 25, 36, 23, 108}, + { -28, -3, -32, 114, 21, 185, 107}, + { 482, 305, 15, -279, -319, 52, 96}, + { 226, 46, 115, 72, -136, 133, -125}, + { 18, -207, -559, -590, -503, -482, 321}, + { -571, -789, -951, -172, -441, -538, 113}, + { 181, 14, -310, -641, -1001, -202, 159}, + { -136, -393, -433, -513, -911, -144, -22}, + { 72, -265, -706, -954, -159, 53, 332}, + { -338, -591, -852, -383, -395, 56, 44}, + { 43, -158, -464, -897, -631, -157, -294}, + { -161, -128, -328, -573, -483, -125, 11}, + { 1017, 906, 1051, 1005, 679, 341, -102}, + { 359, 334, 1567, 1314, 723, 105, 10}, + { -65, 726, 529, 301, 220, 43, -273}, + { -510, 436, 719, 566, 358, 179, 114}, + { -560, 298, 133, -120, 342, 225, 14}, + { -899, -101, 217, 617, 400, 146, -58}, + { -41, 352, 82, -196, 39, 121, -167}, + { -212, 59, 447, 284, 423, 250, -169}, + { -371, -484, -596, 30, -41, 249, 22}, + { -372, -650, -794, 477, 445, 216, -79}, + { -352, 275, 17, -443, -929, 92, 19}, + { -699, -696, 431, 264, -49, -310, 182}, + { -978, -217, -430, -400, 101, 261, 72}, + { -929, -889, -357, -13, 463, 378, 236}, + { -826, 56, 30, -299, -360, -128, -51}, + { -878, -299, -111, 75, 65, 36, 3}, + { 817, 368, -25, 354, 697, 591, -173}, + { 309, 212, 222, 751, 484, 140, -56}, + { 593, 379, 70, -8, 258, 180, 110}, + { 165, -46, 255, 297, 219, 273, 105}, + { 160, -70, -358, -181, 379, 330, 319}, + { -238, -369, -198, 740, 580, 319, -143}, + { 201, 109, -202, -456, 328, 276, -141}, + { 203, 170, 111, 42, 207, 360, 188}, + { -345, -399, -513, -233, 650, 422, 81}, + { -635, -961, -1220, 463, 539, 204, 209}, + { 202, -25, -194, -498, -787, 193, -143}, + { -449, -538, 195, -106, -331, 68, 62}, + { -228, -477, -840, -576, 317, 128, 283}, + { -671, -937, -807, -114, 391, 335, -62}, + { 246, 2, -314, -679, -303, 180, -88}, + { -107, -272, 90, -198, -28, 290, -112}, + { 885, 1149, 1021, 712, 496, 281, -83}, + { 269, 492, 787, 643, 347, 70, 124}, + { 336, 636, 499, 92, -229, -179, 191}, + { 26, 402, 564, 340, 149, -11, 135}, + { -440, 561, 470, 204, -72, -186, 140}, + { -720, 14, 355, 229, 68, -133, 465}, + { 110, 310, 103, 12, 106, 29, 158}, + { -178, 113, 161, 142, 121, 115, 27}, + { -651, -414, -645, -152, -164, -13, -429}, + { -639, -944, -681, -104, -81, 52, -189}, + { -663, -164, -316, -683, -954, -205, -83}, + { -609, -669, -172, -517, -694, 283, -80}, + { -646, -152, -383, -678, -246, -40, -143}, + { -747, -796, -745, -390, -98, 43, 275}, + { -599, -199, -398, -433, -436, -538, 31}, + { -1107, -568, -376, -265, -126, -21, 1}, + { 847, 573, 308, 392, 305, 101, 55}, + { 273, 293, 201, 267, 346, 201, 123}, + { 727, 480, 226, 2, -65, -138, 164}, + { 273, 208, 173, 292, 12, 253, 174}, + { 340, 207, 180, 88, 116, 46, 475}, + { -460, -166, -30, 13, 110, 173, 396}, + { 137, 88, 43, -137, -94, 34, 284}, + { 96, -14, 226, 40, 63, 70, 130}, + { -467, -735, -1012, -1174, -307, 305, -67}, + { -612, -920, -1146, -567, -8, 92, -25}, + { -182, -271, -492, -754, -857, 287, -75}, + { -494, -787, -689, -683, -709, 137, -326}, + { -288, -550, -903, -1105, 334, 321, -62}, + { -354, -653, -834, -445, 1, 377, -152}, + { -162, -306, -608, -937, -297, 247, -192}, + { -234, -477, -244, -488, -266, 342, -332} +}; + +static const int16_t dico21_isf[64][3] = { + { 329, 409, 249}, { -33, 505, 160}, + { -29, -14, 582}, { -262, 127, 354}, + { 145, 237, 175}, { -152, 245, 122}, + { 27, 42, 340}, { -84, -93, 311}, + { 285, 222, -156}, { 47, -43, -504}, + { 234, 121, 385}, { 104, -317, 45}, + { 176, 195, 8}, { 104, -59, -94}, + { 177, 53, 192}, { -34, -127, 152}, + { 570, 277, -34}, { -67, -329, -639}, + { -157, -272, 462}, { -177, -462, 198}, + { 322, 179, 115}, { -386, 171, 19}, + { 19, -12, 195}, { -120, -252, 201}, + { 304, 36, -336}, { -128, -221, -380}, + { 171, -185, 296}, { -242, -312, 23}, + { 198, 39, 16}, { -3, -177, -111}, + { 111, -93, 76}, { -92, -223, 4}, + { 177, 406, -44}, { -168, 380, -149}, + { -4, 273, 331}, { -420, 513, 277}, + { 21, 247, 47}, { -58, 131, -2}, + { -3, 134, 180}, { -145, 40, 175}, + { 189, 74, -145}, { -27, -45, -325}, + { 370, -114, -21}, { -83, -415, -173}, + { 77, 95, -51}, { -40, -30, -67}, + { 71, 88, 86}, { -35, -98, 14}, + { 69, 197, -334}, { -196, 79, -231}, + { -348, -137, 218}, { -352, -89, -85}, + { 47, 201, -130}, { -165, 37, -15}, + { -43, 3, 86}, { -161, -108, 79}, + { 83, 21, -237}, { -81, -149, -238}, + { 150, -186, -251}, { -186, -249, -162}, + { -19, 66, -139}, { -26, -50, -181}, + { 24, 11, 0}, { -130, -105, -98} +}; + +static const int16_t dico22_isf[128][3] = { + { -127, 310, 42}, { -242, 197, 5}, + { -151, 84, -17}, { -214, 127, -149}, + { -247, -131, 159}, { -268, -267, -95}, + { -217, 1, -79}, { -271, -80, -185}, + { -45, 436, 159}, { 165, 199, 391}, + { -33, 81, 187}, { -66, -42, 355}, + { -298, -57, 343}, { -108, -537, 226}, + { -144, -23, 193}, { 176, -402, 87}, + { 53, 296, 25}, { -84, 253, -104}, + { -58, 105, -126}, { -169, 174, -314}, + { -48, 44, -294}, { -164, -417, -242}, + { -139, 3, -194}, { -155, -207, -211}, + { 119, 322, 213}, { 333, 50, 380}, + { 237, 247, -2}, { 466, -16, 201}, + { 238, -255, -107}, { 67, -440, -149}, + { 122, -88, -139}, { 88, -247, -73}, + { -41, 231, 167}, { -62, 155, 16}, + { -65, 16, 77}, { -68, -2, -63}, + { -151, -300, 160}, { -18, -333, 54}, + { -56, -94, 5}, { 2, -190, 14}, + { 92, 148, 209}, { 108, 9, 272}, + { 108, 35, 110}, { 142, -85, 145}, + { 47, -157, 279}, { 3, -320, 246}, + { 43, -72, 68}, { 86, -217, 135}, + { 36, 140, 79}, { 56, 175, -49}, + { 26, 45, 3}, { 73, 55, -101}, + { 109, -183, -242}, { -4, -283, -242}, + { 48, -68, -48}, { -6, -153, -122}, + { 161, 196, 96}, { 232, 80, 190}, + { 165, 97, 11}, { 258, -31, 71}, + { 267, -77, -91}, { 311, -209, 87}, + { 152, -14, -22}, { 150, -149, 9}, + { -324, 557, 187}, { -384, 307, 46}, + { -251, 27, 77}, { -365, 77, -52}, + { -482, -84, 160}, { -424, -515, -64}, + { -294, -120, -4}, { -476, -116, -109}, + { -97, 318, 365}, { 106, 627, 445}, + { -190, 120, 287}, { -146, 65, 619}, + { -427, 242, 363}, { -361, -371, 432}, + { -347, 102, 168}, { -629, 195, -14}, + { -65, 476, -47}, { -297, 320, -168}, + { -55, 356, -264}, { -391, 82, -286}, + { -51, -31, -556}, { -178, -399, -586}, + { -205, -49, -360}, { -343, -238, -337}, + { 220, 457, 58}, { 561, 467, 259}, + { 340, 270, -168}, { 450, 77, -280}, + { 60, 167, -413}, { 133, -252, -492}, + { 216, 157, -290}, { 282, 0, -495}, + { -226, 293, 183}, { -157, 135, 122}, + { -158, -59, 39}, { -133, -118, -97}, + { -332, -309, 113}, { -160, -425, -6}, + { -149, -211, 24}, { -80, -277, -90}, + { -11, 125, 338}, { 130, -71, 465}, + { 5, -45, 184}, { 237, -95, 253}, + { -139, -197, 297}, { -19, -300, 511}, + { -63, -152, 139}, { 250, -289, 336}, + { 124, 339, -150}, { 34, 176, -208}, + { 171, 166, -116}, { 94, 38, -229}, + { 75, -65, -339}, { -78, -205, -385}, + { 0, -30, -163}, { -56, -110, -242}, + { 321, 244, 194}, { 505, 238, -1}, + { 317, 116, 65}, { 309, 88, -74}, + { 452, -51, -50}, { 334, -217, -290}, + { 211, 41, -152}, { 238, -55, -260} +}; + +static const int16_t dico23_isf[128][3] = { + { -10, 151, 359}, { 136, 298, 223}, + { 255, -104, 290}, { 423, 6, 183}, + { -270, -269, -98}, { -52, -82, 13}, + { -82, -274, -97}, { 90, -246, -72}, + { -299, -70, 421}, { -88, 365, 430}, + { 187, -318, 381}, { 380, 37, 488}, + { -373, -316, 79}, { -308, -101, 5}, + { -135, -451, 8}, { 72, -421, -154}, + { 180, 170, -121}, { 62, 177, -40}, + { 326, 80, -105}, { 248, 263, -5}, + { -168, -181, -221}, { -2, -23, -158}, + { -14, -149, -121}, { 119, -91, -147}, + { 119, 332, -153}, { 49, 303, 34}, + { 442, -55, -69}, { 217, 454, 58}, + { -359, -187, -375}, { -42, 50, -274}, + { -8, -267, -249}, { 85, -86, -346}, + { -77, -40, 345}, { 89, 134, 219}, + { 156, -80, 160}, { 108, 40, 116}, + { -158, -206, 29}, { 5, -32, 175}, + { -65, -158, 146}, { 55, -78, 73}, + { -114, -222, 353}, { -47, 81, 211}, + { 49, -151, 268}, { 105, 4, 302}, + { -263, -132, 183}, { -151, -28, 201}, + { -177, -307, 166}, { 101, -221, 130}, + { 74, 58, -98}, { 32, 44, 13}, + { 194, 30, -142}, { 170, 96, 8}, + { -136, -119, -91}, { -65, 8, -55}, + { 3, -188, 12}, { 45, -63, -49}, + { 149, -21, -19}, { 24, 144, 95}, + { 254, -22, 60}, { 161, 196, 96}, + { -158, -61, 48}, { -70, 33, 82}, + { -23, -321, 58}, { 155, -147, 5}, + { -364, 328, 77}, { -21, 453, 173}, + { -108, 82, 630}, { 367, 263, 208}, + { -300, -62, -176}, { -205, 143, -158}, + { -169, -410, -264}, { 257, -269, -100}, + { -636, 289, -2}, { -292, 627, 173}, + { -382, -363, 387}, { 248, 524, 447}, + { -521, -111, -107}, { -395, 118, -274}, + { -343, -680, -125}, { -172, -447, -663}, + { 75, 148, -367}, { -79, 263, -94}, + { 249, 148, -286}, { 380, 271, -162}, + { -142, -4, -186}, { -57, 111, -125}, + { -35, -108, -254}, { 100, 29, -242}, + { -80, 303, -264}, { -78, 464, -57}, + { 248, -22, -494}, { 661, 662, 44}, + { -193, -40, -330}, { -178, 145, -337}, + { -90, -199, -400}, { -40, -23, -498}, + { -192, 114, 315}, { -41, 244, 190}, + { 88, -97, 485}, { 241, 80, 212}, + { -246, 40, 87}, { -156, 147, 134}, + { -2, -334, 239}, { 308, -203, 110}, + { -459, 251, 422}, { -218, 310, 228}, + { -86, -346, 654}, { 184, 175, 425}, + { -481, -63, 169}, { -349, 117, 188}, + { -125, -560, 310}, { 158, -416, 94}, + { 46, 171, -192}, { -63, 157, 14}, + { 256, -35, -271}, { 322, 123, 53}, + { -214, 4, -76}, { -156, 86, -18}, + { 128, -197, -232}, { 265, -90, -98}, + { -308, 332, -145}, { -131, 308, 58}, + { 509, 59, -339}, { 562, 196, -14}, + { -378, 100, -47}, { -234, 202, 1}, + { 104, -270, -493}, { 319, -210, -325} +}; + +static const int16_t dico24_isf[32][3] = { + { -79, -89, -4}, { -171, 77, -211}, + { 160, -193, 98}, { 120, -103, 323}, + { 32, -22, -129}, { 72, 78, -268}, + { 182, -76, -66}, { 309, 99, -145}, + { -229, -157, -84}, { -383, 98, -71}, + { -90, -352, 12}, { -284, -178, 178}, + { -65, -125, -166}, { -87, -175, -351}, + { 42, -198, -48}, { 154, -140, -243}, + { -77, 18, 108}, { -39, 355, 91}, + { 87, 8, 155}, { -4, 158, 239}, + { 128, 95, -54}, { 7, 246, -124}, + { 258, 15, 89}, { 206, 216, 98}, + { -201, 9, 18}, { -312, 233, 204}, + { -39, -174, 155}, { -144, -9, 284}, + { -57, 70, -69}, { -157, 187, 18}, + { 54, -30, 23}, { 24, 135, 55} +}; + +static const int16_t dico25_isf[32][4] = { + { 169, 142, -119, 115}, { 206, -20, 94, 226}, + { -106, 313, -21, 16}, { -62, 161, 71, 255}, + { -89, 101, -185, 125}, { 72, -30, -201, 344}, + { -258, 33, -8, 81}, { -104, -154, 72, 296}, + { 144, -68, -268, -25}, { 81, -78, -87, 106}, + { 22, 155, -186, -119}, { -46, -28, 27, 91}, + { -114, -37, -175, -33}, { -94, -222, -189, 122}, + { -132, -119, -191, -270}, { -172, -173, 18, -43}, + { 279, 135, -42, -128}, { 187, -86, 229, -138}, + { 159, 240, 140, 46}, { 69, 25, 227, 77}, + { 21, 115, 13, 8}, { 68, -248, 126, 81}, + { -150, 137, 207, -9}, { -154, -133, 289, 67}, + { 143, -37, -86, -326}, { 180, -32, 19, -23}, + { 26, 168, 116, -233}, { -32, -26, 118, -78}, + { 3, -8, -45, -115}, { 57, -215, -54, -83}, + { -209, 112, -22, -167}, { -91, -151, 168, -262} +}; + +static const int16_t dico21_isf_36b[128][5] = { + { -52, -96, 212, 315, -73}, { 82, -204, 363, 136, -197}, + { -126, -331, 183, 218, 143}, { -49, -41, 557, 230, 72}, + { 2, -73, 163, 377, 221}, { 133, 111, 278, 215, -110}, + { -102, -20, 284, 113, 273}, { 84, 319, 290, 18, 85}, + { -25, -5, 125, 132, -204}, { -38, -5, 286, -9, -356}, + { -140, -256, 92, 117, -189}, { -144, 191, 313, 51, -98}, + { 167, -10, 44, 247, 36}, { 381, 197, 238, 74, 6}, + { 38, -408, 29, -3, -85}, { 92, 266, 157, -25, -200}, + { 161, -121, 70, 84, -140}, { -16, -86, 112, -94, -189}, + { -269, -270, 351, 107, -24}, { -68, -67, 492, -103, -155}, + { -53, -131, 62, 122, 10}, { 135, 84, 283, -55, -120}, + { -12, -219, 331, -81, 167}, { 220, -136, 147, -172, -42}, + { 140, -95, -109, -88, -194}, { 0, -2, -4, -33, -381}, + { -66, -217, 152, -186, -402}, { 244, 108, 156, -140, -395}, + { 113, -136, -196, 110, -24}, { 214, 118, 11, -64, -131}, + { -110, -286, -6, -332, 16}, { 94, 97, 79, -291, -205}, + { -5, -39, -20, 252, -96}, { 76, 174, 101, 163, 61}, + { -69, -239, -55, 399, 6}, { -115, 319, 164, 275, 196}, + { -15, 36, -47, 331, 121}, { 226, 209, 271, 325, 184}, + { 13, -80, -218, 471, 353}, { 288, 378, 16, -51, 251}, + { 174, 116, 52, 149, -279}, { 235, 276, 39, 120, -48}, + { 0, -108, -108, 241, -339}, { -93, 534, 45, 33, -87}, + { 194, 149, -71, 405, -44}, { 409, 370, 81, -186, -154}, + { 25, -102, -448, 124, -173}, { 22, 408, -110, -310, -214}, + { -26, 23, -83, 114, 14}, { -110, 164, 52, 223, -82}, + { 37, -25, -263, 306, -15}, { -466, 415, 292, 165, -18}, + { 29, -19, -171, 155, 182}, { 179, 144, -27, 231, 258}, + { -103, -247, -396, 238, 113}, { 375, -154, -109, -4, 156}, + { 98, 85, -292, -5, -124}, { 116, 139, -116, -98, -294}, + { -14, -83, -278, -117, -378}, { 106, 33, -106, -344, -484}, + { 119, 17, -412, 138, 166}, { 384, 101, -204, 88, -156}, + { -121, -284, -300, -1, -166}, { 280, 33, -152, -313, -81}, + { -37, 22, 229, 153, 37}, { -60, -83, 236, -8, -41}, + { -169, -228, 126, -20, 363}, { -235, 17, 364, -156, 156}, + { -25, -30, 72, 144, 156}, { 153, -26, 256, 97, 144}, + { -21, -37, 48, -65, 250}, { 63, 77, 273, -128, 124}, + { -129, -26, 40, 9, -115}, { -6, 82, 38, -90, -182}, + { -336, -13, 28, 158, 91}, { -30, 241, 137, -170, -17}, + { 146, 14, -11, 33, 61}, { 192, 197, 54, -84, 85}, + { 23, -200, -78, -29, 140}, { 122, 237, 106, -341, 136}, + { -57, -142, -85, -16, -74}, { -59, -90, -8, -187, -20}, + { -211, -267, 216, -179, -110}, { -50, -7, 220, -267, -70}, + { -57, -42, -17, -15, 71}, { 32, 21, 63, -137, 33}, + { -137, -175, 104, -68, 97}, { -67, -43, 133, -301, 221}, + { -116, -200, -81, -92, -272}, { -64, -41, -54, -244, -220}, + { -287, -242, -50, -87, -89}, { -245, 236, 102, -166, -295}, + { 66, 24, -162, -71, 95}, { 66, 136, -90, -220, -36}, + { -98, -161, -222, -188, 29}, { -18, 18, -19, -415, 9}, + { 49, 61, 100, 39, -56}, { -111, 82, 135, -31, 52}, + { -90, -153, -93, 189, 182}, { -214, 295, 119, -74, 284}, + { 2, 137, 37, 47, 182}, { 92, 117, 184, -53, 373}, + { -21, -14, -35, 136, 391}, { 146, 129, -164, -28, 333}, + { 92, 80, -84, 100, -134}, { -8, 217, -32, 3, -47}, + { -151, 251, -215, 142, 92}, { -224, 310, -172, -275, 98}, + { 159, 155, -177, 112, 53}, { 205, 27, 8, -240, 192}, + { 169, 120, -319, -201, 106}, { 11, 36, -86, -237, 455}, + { -109, -154, -163, 174, -55}, { -38, 32, -101, -78, -59}, + { -205, -321, -97, 69, 79}, { -310, 44, 18, -185, 34}, + { -115, -20, -148, -39, 203}, { -29, 154, -30, -158, 166}, + { -45, -131, -317, -24, 363}, { -165, -205, -112, -222, 265}, + { -32, -44, -150, 54, -193}, { -6, -38, -255, -169, -115}, + { -266, 87, -189, -36, -169}, { -60, -87, -266, -436, -170}, + { -68, -81, -278, 24, 38}, { -23, -19, -155, -256, 141}, + { -61, -226, -565, -175, 71}, { 9, -29, -237, -515, 263} +}; + +static const int16_t dico22_isf_36b[128][4] = { + { -298, -6, 95, 31}, { -213, -87, -122, 261}, + { 4, -49, 208, 14}, { -129, -110, 30, 118}, + { -214, 258, 110, -235}, { -41, -18, -126, 120}, + { 103, 65, 127, -37}, { 126, -36, -24, 25}, + { -138, -67, -278, -186}, { -164, -194, -201, 78}, + { -211, -87, -51, -221}, { -174, -79, -94, -39}, + { 23, -6, -157, -240}, { 22, -110, -153, -68}, + { 148, -5, -2, -149}, { -1, -135, -39, -179}, + { 68, 360, -117, -15}, { 137, 47, -278, 146}, + { 136, 260, 135, 65}, { 61, 116, -45, 97}, + { 231, 379, 87, -120}, { 338, 177, -272, 3}, + { 266, 156, 28, -69}, { 260, 84, -85, 86}, + { -266, 154, -256, -182}, { -17, -65, -304, -6}, + { -40, 175, -151, -180}, { -27, 27, -87, -63}, + { 121, 114, -166, -469}, { 159, -66, -323, -231}, + { 214, 152, -141, -212}, { 137, 36, -184, -51}, + { -282, -237, 40, 10}, { -48, -235, -37, 251}, + { -54, -323, 136, 29}, { -88, -174, 213, 198}, + { -390, 99, -63, -375}, { 107, -169, -164, 424}, + { 69, -111, 141, -167}, { 74, -129, 65, 144}, + { -353, -207, -205, -109}, { -160, -386, -355, 98}, + { -176, -493, -20, -143}, { -252, -432, -2, 216}, + { -90, -174, -168, -411}, { 13, -284, -229, -160}, + { -87, -279, 34, -251}, { -75, -263, -58, -42}, + { 420, 53, -211, -358}, { 384, -35, -374, 396}, + { 68, -228, 323, -2}, { 167, -307, 192, 194}, + { 459, 329, -5, -332}, { 375, 79, -7, 313}, + { 282, -124, 200, -92}, { 271, -162, -70, 180}, + { -157, -298, -514, -309}, { 58, -163, -546, 18}, + { 124, -364, 167, -238}, { 83, -411, -117, 96}, + { 140, -112, -388, -624}, { 259, -133, -317, 41}, + { 163, -130, -64, -334}, { 226, -165, -124, -110}, + { -466, -61, 6, 229}, { -153, 205, -145, 242}, + { -159, 48, 195, 148}, { -58, 28, 31, 279}, + { -303, 185, 279, -4}, { -61, 197, 59, 86}, + { -114, 123, 168, -52}, { 35, 36, 100, 126}, + { -407, 102, -77, -40}, { -338, -1, -342, 156}, + { -179, 105, -34, -97}, { -185, 84, -35, 108}, + { -133, 107, -91, -357}, { -180, 54, -229, 24}, + { -44, 47, 47, -182}, { -66, 13, 45, 4}, + { -339, 251, 64, 226}, { -42, 101, -350, 275}, + { -99, 398, 142, 121}, { 111, 12, -102, 260}, + { 0, 505, 260, -94}, { 161, 285, -96, 224}, + { -4, 206, 314, 33}, { 167, 139, 88, 204}, + { -235, 316, -60, -25}, { -8, -150, -312, 201}, + { -36, 292, 61, -104}, { -40, 174, -162, 42}, + { -21, 402, -29, -351}, { 21, 152, -360, -93}, + { 57, 191, 212, -196}, { 76, 158, -21, -69}, + { -328, -185, 331, 119}, { -53, 285, 56, 337}, + { -107, -24, 405, 29}, { -18, 137, 272, 277}, + { -255, 22, 173, -191}, { 295, 322, 325, 302}, + { 21, -27, 332, -178}, { 119, 13, 271, 129}, + { -455, -180, 116, -191}, { -227, 62, -148, 524}, + { -176, -287, 282, -157}, { -243, 13, 199, 430}, + { -59, -49, 115, -365}, { 72, -172, -137, 93}, + { -138, -126, 141, -84}, { 5, -124, 38, -20}, + { -258, 311, 601, 213}, { 94, 130, -61, 502}, + { -1, -157, 485, 313}, { 146, -74, 158, 345}, + { 276, 135, 280, -57}, { 490, 252, 99, 43}, + { 267, -74, 429, 105}, { 278, -23, 119, 94}, + { -542, 488, 257, -115}, { -84, -244, -438, 478}, + { -113, -545, 387, 101}, { -95, -306, 111, 498}, + { 95, 166, 22, -301}, { 420, -15, -58, -78}, + { 270, 29, 122, -282}, { 160, -240, 50, -38} +}; + +static const int16_t dico23_isf_36b[64][7] = { + { 81, -18, 68, -27, -122, -280, -4}, + { 45, -177, 209, -30, -136, -74, 131}, + { -44, 101, -75, -88, -48, -137, -54}, + { -245, -28, 63, -18, -112, -103, 58}, + { -79, -6, 220, -65, 114, -35, -50}, + { 109, -65, 143, -114, 129, 76, 125}, + { 166, 90, -61, -242, 186, -74, -43}, + { -46, -92, 49, -227, 24, -155, 39}, + { 67, 85, 99, -42, 53, -184, -281}, + { 142, -122, 0, 21, -142, -15, -17}, + { 223, 92, -21, -48, -82, -14, -167}, + { 51, -37, -243, -30, -90, 18, -56}, + { 54, 105, 74, 86, 69, 13, -101}, + { 196, 72, -89, 43, 65, 19, 39}, + { 121, 34, 131, -82, 25, 213, -156}, + { 101, -102, -136, -21, 57, 214, 22}, + { 36, -124, 205, 204, 58, -156, -83}, + { 83, -117, 137, 137, 85, 116, 44}, + { -92, -148, -68, 11, -102, -197, -220}, + { -76, -185, -58, 132, -26, -183, 85}, + { -7, -31, -2, 23, 205, -151, 10}, + { -27, -37, -5, -18, 292, 131, 1}, + { 117, -168, 9, -93, 80, -59, -125}, + { -182, -244, 98, -24, 135, -22, 94}, + { 221, 97, 106, 42, 43, -160, 83}, + { 25, -64, -21, 6, 14, -15, 154}, + { 126, 15, -140, 150, -10, -207, -114}, + { 79, -63, -211, -70, -28, -217, 165}, + { 46, 38, -22, 281, 132, -62, 109}, + { 112, 54, -112, -93, 208, 27, 296}, + { 115, 10, -147, 41, 216, 42, -276}, + { 50, -115, -254, 167, 117, -2, 61}, + { 17, 144, 34, -72, -186, -150, 272}, + { -29, -66, -89, -95, -149, 129, 251}, + { 122, 0, -50, -234, -91, 36, 26}, + { -105, -102, -88, -121, -236, -7, -11}, + { -204, 109, 5, -191, 105, -15, 163}, + { -80, 32, -24, -209, 41, 294, 70}, + { -106, -94, -204, -118, 120, -50, -37}, + { -82, -241, 46, -131, -29, 150, -55}, + { 33, 155, 120, -89, -8, 7, 62}, + { 213, 82, 61, 18, -161, 144, 152}, + { 30, 131, 65, -87, -255, -17, -107}, + { -8, 85, -64, 51, -162, 223, -53}, + { -134, 261, 69, -56, 218, 72, -111}, + { 2, 155, -113, -87, 49, 85, -28}, + { -163, 42, -1, -196, 7, 39, -245}, + { 14, -137, -79, 11, -160, 202, -293}, + { -94, 33, 208, 100, 56, -44, 326}, + { -78, -41, 232, 13, -142, 227, 80}, + { -16, -87, 201, 33, -133, 15, -183}, + { -58, -192, -47, 184, -128, 133, 99}, + { -205, 11, -155, 78, 52, 72, 141}, + { -246, 26, 99, 151, 59, 115, -64}, + { -79, -47, -16, -14, 6, 47, -43}, + { -72, -178, -27, 162, 112, 43, -174}, + { -175, 238, 186, 71, -54, -188, -76}, + { -225, 233, 39, -39, -158, 122, 44}, + { -26, 43, 84, 130, -93, -51, 22}, + { 3, 92, -150, 136, -182, -57, 97}, + { -131, 179, -78, 80, 91, -165, 90}, + { -2, 148, 15, 130, 65, 175, 117}, + { -138, 114, -137, 132, 3, -10, -186}, + { 140, -4, -37, 254, -62, 92, -109} +}; + +/** Means of ISF vectors in Q15 */ +static const int16_t isf_mean[LP_ORDER] = { + 738, 1326, 2336, 3578, 4596, 5662, 6711, 7730, + 8750, 9753, 10705, 11728, 12833, 13971, 15043, 4037 +}; + +/** Initialization tables for the processed ISF vector in Q15 */ +static const int16_t isf_init[LP_ORDER] = { + 1024, 2048, 3072, 4096, 5120, 6144, 7168, 8192, + 9216, 10240, 11264, 12288, 13312, 14336, 15360, 3840 +}; + +/** ISF/ISP interpolation coefficients for each subframe */ +static const float isfp_inter[4] = { 0.45, 0.8, 0.96, 1.0 }; + +/** Coefficients for FIR interpolation of excitation vector + * at pitch lag resulting the adaptive codebook vector */ +static const float ac_inter[65] = { + 9.400024e-01, + 8.563843e-01, 6.322632e-01, 3.375854e-01, 5.908203e-02, + -1.310425e-01, -1.994019e-01, -1.585693e-01, -5.633545e-02, + 4.760742e-02, 1.067505e-01, 1.036987e-01, 5.206299e-02, + -1.519775e-02, -6.372070e-02, -7.366943e-02, -4.650879e-02, + -9.765625e-04, 3.820801e-02, 5.316162e-02, 4.003906e-02, + 9.338379e-03, -2.166748e-02, -3.778076e-02, -3.320312e-02, + -1.300049e-02, 1.068115e-02, 2.587891e-02, 2.630615e-02, + 1.379395e-02, -3.662109e-03, -1.678467e-02, -1.983643e-02, + -1.275635e-02, -5.493164e-04, 1.007080e-02, 1.409912e-02, + 1.068115e-02, 2.624512e-03, -5.371094e-03, -9.338379e-03, + -8.117676e-03, -3.173828e-03, 2.319336e-03, 5.615234e-03, + 5.554199e-03, 2.868652e-03, -6.103516e-04, -2.990723e-03, + -3.356934e-03, -2.014160e-03, -1.220703e-04, 1.342773e-03, + 1.708984e-03, 1.159668e-03, 2.441406e-04, -4.272461e-04, + -6.103516e-04, -4.272461e-04, -1.220703e-04, 6.103516e-05, + 1.220703e-04, 6.103516e-05, 0.000000e+00, 0.000000e+00 +}; + +/** [i][j] is the number of pulses present in track j at mode i */ +static const uint8_t pulses_nb_per_mode_tr[][4] = { + {1, 1, 0, 0}, {1, 1, 1, 1}, {2, 2, 2, 2}, + {3, 3, 2, 2}, {3, 3, 3, 3}, {4, 4, 4, 4}, + {5, 5, 4, 4}, {6, 6, 6, 6}, {6, 6, 6, 6} +}; + +/** Tables for decoding quantized gains { pitch (Q14), fixed factor (Q11) } */ +static const int16_t qua_gain_6b[64][2] = { + { 1566, 1332}, { 1577, 3557}, + { 3071, 6490}, { 4193, 10163}, + { 4496, 2534}, { 5019, 4488}, + { 5586, 15614}, { 5725, 1422}, + { 6453, 580}, { 6724, 6831}, + { 7657, 3527}, { 8072, 2099}, + { 8232, 5319}, { 8827, 8775}, + { 9740, 2868}, { 9856, 1465}, + { 10087, 12488}, { 10241, 4453}, + { 10859, 6618}, { 11321, 3587}, + { 11417, 1800}, { 11643, 2428}, + { 11718, 988}, { 12312, 5093}, + { 12523, 8413}, { 12574, 26214}, + { 12601, 3396}, { 13172, 1623}, + { 13285, 2423}, { 13418, 6087}, + { 13459, 12810}, { 13656, 3607}, + { 14111, 4521}, { 14144, 1229}, + { 14425, 1871}, { 14431, 7234}, + { 14445, 2834}, { 14628, 10036}, + { 14860, 17496}, { 15161, 3629}, + { 15209, 5819}, { 15299, 2256}, + { 15518, 4722}, { 15663, 1060}, + { 15759, 7972}, { 15939, 11964}, + { 16020, 2996}, { 16086, 1707}, + { 16521, 4254}, { 16576, 6224}, + { 16894, 2380}, { 16906, 681}, + { 17213, 8406}, { 17610, 3418}, + { 17895, 5269}, { 18168, 11748}, + { 18230, 1575}, { 18607, 32767}, + { 18728, 21684}, { 19137, 2543}, + { 19422, 6577}, { 19446, 4097}, + { 19450, 9056}, { 20371, 14885} +}; + +static const int16_t qua_gain_7b[128][2] = { + { 204, 441}, { 464, 1977}, + { 869, 1077}, { 1072, 3062}, + { 1281, 4759}, { 1647, 1539}, + { 1845, 7020}, { 1853, 634}, + { 1995, 2336}, { 2351, 15400}, + { 2661, 1165}, { 2702, 3900}, + { 2710, 10133}, { 3195, 1752}, + { 3498, 2624}, { 3663, 849}, + { 3984, 5697}, { 4214, 3399}, + { 4415, 1304}, { 4695, 2056}, + { 5376, 4558}, { 5386, 676}, + { 5518, 23554}, { 5567, 7794}, + { 5644, 3061}, { 5672, 1513}, + { 5957, 2338}, { 6533, 1060}, + { 6804, 5998}, { 6820, 1767}, + { 6937, 3837}, { 7277, 414}, + { 7305, 2665}, { 7466, 11304}, + { 7942, 794}, { 8007, 1982}, + { 8007, 1366}, { 8326, 3105}, + { 8336, 4810}, { 8708, 7954}, + { 8989, 2279}, { 9031, 1055}, + { 9247, 3568}, { 9283, 1631}, + { 9654, 6311}, { 9811, 2605}, + { 10120, 683}, { 10143, 4179}, + { 10245, 1946}, { 10335, 1218}, + { 10468, 9960}, { 10651, 3000}, + { 10951, 1530}, { 10969, 5290}, + { 11203, 2305}, { 11325, 3562}, + { 11771, 6754}, { 11839, 1849}, + { 11941, 4495}, { 11954, 1298}, + { 11975, 15223}, { 11977, 883}, + { 11986, 2842}, { 12438, 2141}, + { 12593, 3665}, { 12636, 8367}, + { 12658, 1594}, { 12886, 2628}, + { 12984, 4942}, { 13146, 1115}, + { 13224, 524}, { 13341, 3163}, + { 13399, 1923}, { 13549, 5961}, + { 13606, 1401}, { 13655, 2399}, + { 13782, 3909}, { 13868, 10923}, + { 14226, 1723}, { 14232, 2939}, + { 14278, 7528}, { 14439, 4598}, + { 14451, 984}, { 14458, 2265}, + { 14792, 1403}, { 14818, 3445}, + { 14899, 5709}, { 15017, 15362}, + { 15048, 1946}, { 15069, 2655}, + { 15405, 9591}, { 15405, 4079}, + { 15570, 7183}, { 15687, 2286}, + { 15691, 1624}, { 15699, 3068}, + { 15772, 5149}, { 15868, 1205}, + { 15970, 696}, { 16249, 3584}, + { 16338, 1917}, { 16424, 2560}, + { 16483, 4438}, { 16529, 6410}, + { 16620, 11966}, { 16839, 8780}, + { 17030, 3050}, { 17033, 18325}, + { 17092, 1568}, { 17123, 5197}, + { 17351, 2113}, { 17374, 980}, + { 17566, 26214}, { 17609, 3912}, + { 17639, 32767}, { 18151, 7871}, + { 18197, 2516}, { 18202, 5649}, + { 18679, 3283}, { 18930, 1370}, + { 19271, 13757}, { 19317, 4120}, + { 19460, 1973}, { 19654, 10018}, + { 19764, 6792}, { 19912, 5135}, + { 20040, 2841}, { 21234, 19833} +}; + +/** 4-tap moving average prediction coefficients in reverse order */ +static const float energy_pred_fac[4] = { 0.2, 0.3, 0.4, 0.5 }; + +/** impulse response filter tables converted to float from Q15 + * used for anti-sparseness processing */ +static const float ir_filter_str[64] = { + 6.159058e-01, 2.958069e-01, 9.979248e-02, -1.048889e-01, + 8.740234e-02, -1.599121e-01, 4.849243e-02, -4.141235e-02, + 1.831055e-02, 1.188049e-01, -4.568481e-02, -2.130127e-02, + 3.671265e-02, -1.601868e-01, 3.659058e-02, 1.639099e-01, + -4.541016e-02, -2.151489e-02, -8.810425e-02, 6.030273e-02, + 2.740479e-02, 2.200317e-02, -1.182861e-01, 1.289978e-01, + -1.560059e-01, 1.953125e-01, -3.149414e-02, -1.441956e-01, + 1.249084e-01, -1.328125e-01, 9.780884e-02, 6.500244e-02, + -6.091309e-02, -5.599976e-02, 8.081055e-02, -5.450439e-02, + -1.239014e-02, 1.748657e-02, 7.580566e-02, -1.101074e-01, + 9.579468e-02, -4.159546e-02, -7.830811e-02, 1.162109e-01, + -1.950073e-02, -6.259155e-02, -1.651001e-02, 7.250977e-02, + 1.199951e-01, -1.911011e-01, 4.370117e-02, -1.098938e-01, + 1.492004e-01, 1.129150e-02, 1.730347e-02, -3.549194e-02, + -8.709717e-02, 5.841064e-02, 1.190186e-03, -7.379150e-02, + 1.054077e-01, 9.078979e-02, -1.227112e-01, 1.047058e-01 +}; + +static const float ir_filter_mid[64] = { + 7.354126e-01, 3.192139e-01, -1.606140e-01, -2.328491e-02, + 6.250000e-02, -2.828979e-02, 5.349731e-02, -1.014099e-01, + 6.750488e-02, 1.989746e-02, -6.549072e-02, 7.589722e-02, + -1.080017e-01, 1.253967e-01, -6.430054e-02, -1.141357e-02, + -1.910400e-02, 1.303101e-01, -1.673889e-01, 6.820679e-02, + 5.670166e-02, -8.450317e-02, 2.270508e-02, 3.479004e-02, + -2.328491e-02, -4.928589e-02, 1.239014e-01, -1.395874e-01, + 9.100342e-02, -3.549194e-02, 2.230835e-02, -3.350830e-02, + 2.450562e-02, 5.096436e-03, -2.178955e-02, 1.849365e-02, + -1.708984e-02, 1.950073e-02, 1.312256e-03, -5.389404e-02, + 9.851074e-02, -8.489990e-02, 2.029419e-02, 2.328491e-02, + 7.110596e-03, -6.109619e-02, 3.939819e-02, 5.709839e-02, + -1.058960e-01, 3.149414e-02, 8.270264e-02, -1.232910e-01, + 1.105957e-01, -1.286011e-01, 1.614990e-01, -1.303101e-01, + 4.769897e-02, 3.295898e-03, -1.770020e-02, 5.010986e-02, + -7.501221e-02, 2.920532e-02, 1.660156e-02, 7.751465e-02 +}; + +static const float *ir_filters_lookup[2] = { + ir_filter_str, ir_filter_mid +}; + +/** High-pass filters coefficients for 31 Hz and 400 Hz cutoff */ +static const float hpf_zeros[2] = { -2.0, 1.0 }; +static const float hpf_31_poles[2] = { -1.978881836, 0.979125977 }; +static const float hpf_31_gain = 0.989501953; + +static const float hpf_400_poles[2] = { -1.787109375, 0.864257812 }; +static const float hpf_400_gain = 0.893554687; + +/** Interpolation coefficients for 5/4 signal upsampling + * Table from the reference source was reordered for efficiency */ +static const float upsample_fir[4][24] = { + { -6.103516e-05, 7.324219e-04, -2.014160e-03, 4.150391e-03, + -7.263184e-03, 1.165771e-02, -1.776123e-02, 2.624512e-02, + -3.869629e-02, 5.877686e-02, -9.863281e-02, 2.314453e-01, + 9.348755e-01, -1.523438e-01, 7.861328e-02, -4.937744e-02, + 3.308105e-02, -2.252197e-02, 1.507568e-02, -9.765625e-03, + 5.859375e-03, -3.173828e-03, 1.403809e-03, -3.662109e-04 }, + { -2.441406e-04, 1.464844e-03, -3.784180e-03, 7.568359e-03, + -1.300049e-02, 2.062988e-02, -3.112793e-02, 4.589844e-02, + -6.781006e-02, 1.042480e-01, -1.815186e-01, 5.016479e-01, + 7.548828e-01, -2.094727e-01, 1.148071e-01, -7.348633e-02, + 4.956055e-02, -3.369141e-02, 2.246094e-02, -1.434326e-02, + 8.483887e-03, -4.455566e-03, 1.831055e-03, -4.272461e-04 }, + { -4.272461e-04, 1.831055e-03, -4.455566e-03, 8.483887e-03, + -1.434326e-02, 2.246094e-02, -3.369141e-02, 4.956055e-02, + -7.348633e-02, 1.148071e-01, -2.094727e-01, 7.548828e-01, + 5.016479e-01, -1.815186e-01, 1.042480e-01, -6.781006e-02, + 4.589844e-02, -3.112793e-02, 2.062988e-02, -1.300049e-02, + 7.568359e-03, -3.784180e-03, 1.464844e-03, -2.441406e-04 }, + { -3.662109e-04, 1.403809e-03, -3.173828e-03, 5.859375e-03, + -9.765625e-03, 1.507568e-02, -2.252197e-02, 3.308105e-02, + -4.937744e-02, 7.861328e-02, -1.523438e-01, 9.348755e-01, + 2.314453e-01, -9.863281e-02, 5.877686e-02, -3.869629e-02, + 2.624512e-02, -1.776123e-02, 1.165771e-02, -7.263184e-03, + 4.150391e-03, -2.014160e-03, 7.324219e-04, -6.103516e-05 } +}; + +/** High band quantized gains for 23k85 in Q14 */ +static const uint16_t qua_hb_gain[16] = { + 3624, 4673, 5597, 6479, 7425, 8378, 9324, 10264, + 11210, 12206, 13391, 14844, 16770, 19655, 24289, 32728 +}; + +/** High-band post-processing FIR filters coefficients from Q15 */ +static const float bpf_6_7_coef[31] = { // band pass, 6kHz and 7kHz cutoffs + -2.441406e-04, 3.585815e-04, 2.441406e-04, + -2.059937e-04, -2.815248e-03, 8.560180e-03, + -1.084137e-02, 0.000000e+00, 2.897645e-02, + -6.774902e-02, 9.421540e-02, -8.380128e-02, + 2.706910e-02, 5.924987e-02, -1.373367e-01, + 1.687469e-01, + -1.373367e-01, 5.924987e-02, 2.706910e-02, + -8.380128e-02, 9.421540e-02, -6.774902e-02, + 2.897645e-02, 0.000000e+00, -1.084137e-02, + 8.560180e-03, -2.815248e-03, -2.059937e-04, + 2.441406e-04, 3.585815e-04, -2.441406e-04 +}; + +static const float lpf_7_coef[31] = { // low pass, 7kHz cutoff + -6.408691e-04, 1.434326e-03, -2.716064e-03, + 4.455566e-03, -6.195068e-03, 6.988525e-03, + -5.401611e-03, 0.000000e+00, 1.022339e-02, + -2.560425e-02, 4.531860e-02, -6.747437e-02, + 8.944702e-02, -1.080933e-01, 1.206360e-01, + 8.753052e-01, + 1.206360e-01, -1.080933e-01, 8.944702e-02, + -6.747437e-02, 4.531860e-02, -2.560425e-02, + 1.022339e-02, 0.000000e+00, -5.401611e-03, + 6.988525e-03, -6.195068e-03, 4.455566e-03, + -2.716064e-03, 1.434326e-03, -6.408691e-04 +}; + +/** Core frame sizes in each mode */ +static const uint16_t cf_sizes_wb[] = { + 132, 177, 253, 285, 317, 365, 397, 461, 477, + 40 /// SID/comfort noise frame +}; + +#endif diff --git a/libavcodec/amrwbdec.c b/libavcodec/amrwbdec.c new file mode 100644 index 0000000000..64ab707fd3 --- /dev/null +++ b/libavcodec/amrwbdec.c @@ -0,0 +1,1237 @@ +/* + * AMR wideband decoder + * Copyright (c) 2010 Marcelo Galvao Povoa + * + * This file is part of FFmpeg. + * + * FFmpeg is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * FFmpeg 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with FFmpeg; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA + */ + +/** + * @file + * AMR wideband decoder + */ + +#include "libavutil/lfg.h" + +#include "avcodec.h" +#include "get_bits.h" +#include "lsp.h" +#include "celp_math.h" +#include "celp_filters.h" +#include "acelp_filters.h" +#include "acelp_vectors.h" +#include "acelp_pitch_delay.h" + +#define AMR_USE_16BIT_TABLES +#include "amr.h" + +#include "amrwbdata.h" + +typedef struct { + AMRWBFrame frame; ///< AMRWB parameters decoded from bitstream + enum Mode fr_cur_mode; ///< mode index of current frame + uint8_t fr_quality; ///< frame quality index (FQI) + float isf_cur[LP_ORDER]; ///< working ISF vector from current frame + float isf_q_past[LP_ORDER]; ///< quantized ISF vector of the previous frame + float isf_past_final[LP_ORDER]; ///< final processed ISF vector of the previous frame + double isp[4][LP_ORDER]; ///< ISP vectors from current frame + double isp_sub4_past[LP_ORDER]; ///< ISP vector for the 4th subframe of the previous frame + + float lp_coef[4][LP_ORDER]; ///< Linear Prediction Coefficients from ISP vector + + uint8_t base_pitch_lag; ///< integer part of pitch lag for the next relative subframe + uint8_t pitch_lag_int; ///< integer part of pitch lag of the previous subframe + + float excitation_buf[AMRWB_P_DELAY_MAX + LP_ORDER + 2 + AMRWB_SFR_SIZE]; ///< current excitation and all necessary excitation history + float *excitation; ///< points to current excitation in excitation_buf[] + + float pitch_vector[AMRWB_SFR_SIZE]; ///< adaptive codebook (pitch) vector for current subframe + float fixed_vector[AMRWB_SFR_SIZE]; ///< algebraic codebook (fixed) vector for current subframe + + float prediction_error[4]; ///< quantified prediction errors {20log10(^gamma_gc)} for previous four subframes + float pitch_gain[6]; ///< quantified pitch gains for the current and previous five subframes + float fixed_gain[2]; ///< quantified fixed gains for the current and previous subframes + + float tilt_coef; ///< {beta_1} related to the voicing of the previous subframe + + float prev_sparse_fixed_gain; ///< previous fixed gain; used by anti-sparseness to determine "onset" + uint8_t prev_ir_filter_nr; ///< previous impulse response filter "impNr": 0 - strong, 1 - medium, 2 - none + float prev_tr_gain; ///< previous initial gain used by noise enhancer for threshold + + float samples_az[LP_ORDER + AMRWB_SFR_SIZE]; ///< low-band samples and memory from synthesis at 12.8kHz + float samples_up[UPS_MEM_SIZE + AMRWB_SFR_SIZE]; ///< low-band samples and memory processed for upsampling + float samples_hb[LP_ORDER_16k + AMRWB_SFR_SIZE_16k]; ///< high-band samples and memory from synthesis at 16kHz + + float hpf_31_mem[2], hpf_400_mem[2]; ///< previous values in the high pass filters + float demph_mem[1]; ///< previous value in the de-emphasis filter + float bpf_6_7_mem[HB_FIR_SIZE]; ///< previous values in the high-band band pass filter + float lpf_7_mem[HB_FIR_SIZE]; ///< previous values in the high-band low pass filter + + AVLFG prng; ///< random number generator for white noise excitation + uint8_t first_frame; ///< flag active during decoding of the first frame +} AMRWBContext; + +static av_cold int amrwb_decode_init(AVCodecContext *avctx) +{ + AMRWBContext *ctx = avctx->priv_data; + int i; + + avctx->sample_fmt = SAMPLE_FMT_FLT; + + av_lfg_init(&ctx->prng, 1); + + ctx->excitation = &ctx->excitation_buf[AMRWB_P_DELAY_MAX + LP_ORDER + 1]; + ctx->first_frame = 1; + + for (i = 0; i < LP_ORDER; i++) + ctx->isf_past_final[i] = isf_init[i] * (1.0f / (1 << 15)); + + for (i = 0; i < 4; i++) + ctx->prediction_error[i] = MIN_ENERGY; + + return 0; +} + +/** + * Decode the frame header in the "MIME/storage" format. This format + * is simpler and does not carry the auxiliary information of the frame + * + * @param[in] ctx The Context + * @param[in] buf Pointer to the input buffer + * + * @return The decoded header length in bytes + */ +static int decode_mime_header(AMRWBContext *ctx, const uint8_t *buf) +{ + GetBitContext gb; + init_get_bits(&gb, buf, 8); + + /* Decode frame header (1st octet) */ + skip_bits(&gb, 1); // padding bit + ctx->fr_cur_mode = get_bits(&gb, 4); + ctx->fr_quality = get_bits1(&gb); + skip_bits(&gb, 2); // padding bits + + return 1; +} + +/** + * Decodes quantized ISF vectors using 36-bit indexes (6K60 mode only) + * + * @param[in] ind Array of 5 indexes + * @param[out] isf_q Buffer for isf_q[LP_ORDER] + * + */ +static void decode_isf_indices_36b(uint16_t *ind, float *isf_q) +{ + int i; + + for (i = 0; i < 9; i++) + isf_q[i] = dico1_isf[ind[0]][i] * (1.0f / (1 << 15)); + + for (i = 0; i < 7; i++) + isf_q[i + 9] = dico2_isf[ind[1]][i] * (1.0f / (1 << 15)); + + for (i = 0; i < 5; i++) + isf_q[i] += dico21_isf_36b[ind[2]][i] * (1.0f / (1 << 15)); + + for (i = 0; i < 4; i++) + isf_q[i + 5] += dico22_isf_36b[ind[3]][i] * (1.0f / (1 << 15)); + + for (i = 0; i < 7; i++) + isf_q[i + 9] += dico23_isf_36b[ind[4]][i] * (1.0f / (1 << 15)); +} + +/** + * Decodes quantized ISF vectors using 46-bit indexes (except 6K60 mode) + * + * @param[in] ind Array of 7 indexes + * @param[out] isf_q Buffer for isf_q[LP_ORDER] + * + */ +static void decode_isf_indices_46b(uint16_t *ind, float *isf_q) +{ + int i; + + for (i = 0; i < 9; i++) + isf_q[i] = dico1_isf[ind[0]][i] * (1.0f / (1 << 15)); + + for (i = 0; i < 7; i++) + isf_q[i + 9] = dico2_isf[ind[1]][i] * (1.0f / (1 << 15)); + + for (i = 0; i < 3; i++) + isf_q[i] += dico21_isf[ind[2]][i] * (1.0f / (1 << 15)); + + for (i = 0; i < 3; i++) + isf_q[i + 3] += dico22_isf[ind[3]][i] * (1.0f / (1 << 15)); + + for (i = 0; i < 3; i++) + isf_q[i + 6] += dico23_isf[ind[4]][i] * (1.0f / (1 << 15)); + + for (i = 0; i < 3; i++) + isf_q[i + 9] += dico24_isf[ind[5]][i] * (1.0f / (1 << 15)); + + for (i = 0; i < 4; i++) + isf_q[i + 12] += dico25_isf[ind[6]][i] * (1.0f / (1 << 15)); +} + +/** + * Apply mean and past ISF values using the prediction factor + * Updates past ISF vector + * + * @param[in,out] isf_q Current quantized ISF + * @param[in,out] isf_past Past quantized ISF + * + */ +static void isf_add_mean_and_past(float *isf_q, float *isf_past) +{ + int i; + float tmp; + + for (i = 0; i < LP_ORDER; i++) { + tmp = isf_q[i]; + isf_q[i] += isf_mean[i] * (1.0f / (1 << 15)); + isf_q[i] += PRED_FACTOR * isf_past[i]; + isf_past[i] = tmp; + } +} + +/** + * Interpolate the fourth ISP vector from current and past frames + * to obtain a ISP vector for each subframe + * + * @param[in,out] isp_q ISPs for each subframe + * @param[in] isp4_past Past ISP for subframe 4 + */ +static void interpolate_isp(double isp_q[4][LP_ORDER], const double *isp4_past) +{ + int i, k; + + for (k = 0; k < 3; k++) { + float c = isfp_inter[k]; + for (i = 0; i < LP_ORDER; i++) + isp_q[k][i] = (1.0 - c) * isp4_past[i] + c * isp_q[3][i]; + } +} + +/** + * Decode an adaptive codebook index into pitch lag (except 6k60, 8k85 modes) + * Calculate integer lag and fractional lag always using 1/4 resolution + * In 1st and 3rd subframes the index is relative to last subframe integer lag + * + * @param[out] lag_int Decoded integer pitch lag + * @param[out] lag_frac Decoded fractional pitch lag + * @param[in] pitch_index Adaptive codebook pitch index + * @param[in,out] base_lag_int Base integer lag used in relative subframes + * @param[in] subframe Current subframe index (0 to 3) + */ +static void decode_pitch_lag_high(int *lag_int, int *lag_frac, int pitch_index, + uint8_t *base_lag_int, int subframe) +{ + if (subframe == 0 || subframe == 2) { + if (pitch_index < 376) { + *lag_int = (pitch_index + 137) >> 2; + *lag_frac = pitch_index - (*lag_int << 2) + 136; + } else if (pitch_index < 440) { + *lag_int = (pitch_index + 257 - 376) >> 1; + *lag_frac = (pitch_index - (*lag_int << 1) + 256 - 376) << 1; + /* the actual resolution is 1/2 but expressed as 1/4 */ + } else { + *lag_int = pitch_index - 280; + *lag_frac = 0; + } + /* minimum lag for next subframe */ + *base_lag_int = av_clip(*lag_int - 8 - (*lag_frac < 0), + AMRWB_P_DELAY_MIN, AMRWB_P_DELAY_MAX - 15); + // XXX: the spec states clearly that *base_lag_int should be + // the nearest integer to *lag_int (minus 8), but the ref code + // actually always uses its floor, I'm following the latter + } else { + *lag_int = (pitch_index + 1) >> 2; + *lag_frac = pitch_index - (*lag_int << 2); + *lag_int += *base_lag_int; + } +} + +/** + * Decode a adaptive codebook index into pitch lag for 8k85 and 6k60 modes + * Description is analogous to decode_pitch_lag_high, but in 6k60 relative + * index is used for all subframes except the first + */ +static void decode_pitch_lag_low(int *lag_int, int *lag_frac, int pitch_index, + uint8_t *base_lag_int, int subframe, enum Mode mode) +{ + if (subframe == 0 || (subframe == 2 && mode != MODE_6k60)) { + if (pitch_index < 116) { + *lag_int = (pitch_index + 69) >> 1; + *lag_frac = (pitch_index - (*lag_int << 1) + 68) << 1; + } else { + *lag_int = pitch_index - 24; + *lag_frac = 0; + } + // XXX: same problem as before + *base_lag_int = av_clip(*lag_int - 8 - (*lag_frac < 0), + AMRWB_P_DELAY_MIN, AMRWB_P_DELAY_MAX - 15); + } else { + *lag_int = (pitch_index + 1) >> 1; + *lag_frac = (pitch_index - (*lag_int << 1)) << 1; + *lag_int += *base_lag_int; + } +} + +/** + * Find the pitch vector by interpolating the past excitation at the + * pitch delay, which is obtained in this function + * + * @param[in,out] ctx The context + * @param[in] amr_subframe Current subframe data + * @param[in] subframe Current subframe index (0 to 3) + */ +static void decode_pitch_vector(AMRWBContext *ctx, + const AMRWBSubFrame *amr_subframe, + const int subframe) +{ + int pitch_lag_int, pitch_lag_frac; + int i; + float *exc = ctx->excitation; + enum Mode mode = ctx->fr_cur_mode; + + if (mode <= MODE_8k85) { + decode_pitch_lag_low(&pitch_lag_int, &pitch_lag_frac, amr_subframe->adap, + &ctx->base_pitch_lag, subframe, mode); + } else + decode_pitch_lag_high(&pitch_lag_int, &pitch_lag_frac, amr_subframe->adap, + &ctx->base_pitch_lag, subframe); + + ctx->pitch_lag_int = pitch_lag_int; + pitch_lag_int += pitch_lag_frac > 0; + + /* Calculate the pitch vector by interpolating the past excitation at the + pitch lag using a hamming windowed sinc function */ + ff_acelp_interpolatef(exc, exc + 1 - pitch_lag_int, + ac_inter, 4, + pitch_lag_frac + (pitch_lag_frac > 0 ? 0 : 4), + LP_ORDER, AMRWB_SFR_SIZE + 1); + + /* Check which pitch signal path should be used + * 6k60 and 8k85 modes have the ltp flag set to 0 */ + if (amr_subframe->ltp) { + memcpy(ctx->pitch_vector, exc, AMRWB_SFR_SIZE * sizeof(float)); + } else { + for (i = 0; i < AMRWB_SFR_SIZE; i++) + ctx->pitch_vector[i] = 0.18 * exc[i - 1] + 0.64 * exc[i] + + 0.18 * exc[i + 1]; + memcpy(exc, ctx->pitch_vector, AMRWB_SFR_SIZE * sizeof(float)); + } +} + +/** Get x bits in the index interval [lsb,lsb+len-1] inclusive */ +#define BIT_STR(x,lsb,len) (((x) >> (lsb)) & ((1 << (len)) - 1)) + +/** Get the bit at specified position */ +#define BIT_POS(x, p) (((x) >> (p)) & 1) + +/** + * The next six functions decode_[i]p_track decode exactly i pulses + * positions and amplitudes (-1 or 1) in a subframe track using + * an encoded pulse indexing (TS 26.190 section 5.8.2) + * + * The results are given in out[], in which a negative number means + * amplitude -1 and vice versa (i.e., ampl(x) = x / abs(x) ) + * + * @param[out] out Output buffer (writes i elements) + * @param[in] code Pulse index (no. of bits varies, see below) + * @param[in] m (log2) Number of potential positions + * @param[in] off Offset for decoded positions + */ +static inline void decode_1p_track(int *out, int code, int m, int off) +{ + int pos = BIT_STR(code, 0, m) + off; ///code: m+1 bits + + out[0] = BIT_POS(code, m) ? -pos : pos; +} + +static inline void decode_2p_track(int *out, int code, int m, int off) ///code: 2m+1 bits +{ + int pos0 = BIT_STR(code, m, m) + off; + int pos1 = BIT_STR(code, 0, m) + off; + + out[0] = BIT_POS(code, 2*m) ? -pos0 : pos0; + out[1] = BIT_POS(code, 2*m) ? -pos1 : pos1; + out[1] = pos0 > pos1 ? -out[1] : out[1]; +} + +static void decode_3p_track(int *out, int code, int m, int off) ///code: 3m+1 bits +{ + int half_2p = BIT_POS(code, 2*m - 1) << (m - 1); + + decode_2p_track(out, BIT_STR(code, 0, 2*m - 1), + m - 1, off + half_2p); + decode_1p_track(out + 2, BIT_STR(code, 2*m, m + 1), m, off); +} + +static void decode_4p_track(int *out, int code, int m, int off) ///code: 4m bits +{ + int half_4p, subhalf_2p; + int b_offset = 1 << (m - 1); + + switch (BIT_STR(code, 4*m - 2, 2)) { /* case ID (2 bits) */ + case 0: /* 0 pulses in A, 4 pulses in B or vice versa */ + half_4p = BIT_POS(code, 4*m - 3) << (m - 1); // which has 4 pulses + subhalf_2p = BIT_POS(code, 2*m - 3) << (m - 2); + + decode_2p_track(out, BIT_STR(code, 0, 2*m - 3), + m - 2, off + half_4p + subhalf_2p); + decode_2p_track(out + 2, BIT_STR(code, 2*m - 2, 2*m - 1), + m - 1, off + half_4p); + break; + case 1: /* 1 pulse in A, 3 pulses in B */ + decode_1p_track(out, BIT_STR(code, 3*m - 2, m), + m - 1, off); + decode_3p_track(out + 1, BIT_STR(code, 0, 3*m - 2), + m - 1, off + b_offset); + break; + case 2: /* 2 pulses in each half */ + decode_2p_track(out, BIT_STR(code, 2*m - 1, 2*m - 1), + m - 1, off); + decode_2p_track(out + 2, BIT_STR(code, 0, 2*m - 1), + m - 1, off + b_offset); + break; + case 3: /* 3 pulses in A, 1 pulse in B */ + decode_3p_track(out, BIT_STR(code, m, 3*m - 2), + m - 1, off); + decode_1p_track(out + 3, BIT_STR(code, 0, m), + m - 1, off + b_offset); + break; + } +} + +static void decode_5p_track(int *out, int code, int m, int off) ///code: 5m bits +{ + int half_3p = BIT_POS(code, 5*m - 1) << (m - 1); + + decode_3p_track(out, BIT_STR(code, 2*m + 1, 3*m - 2), + m - 1, off + half_3p); + + decode_2p_track(out + 3, BIT_STR(code, 0, 2*m + 1), m, off); +} + +static void decode_6p_track(int *out, int code, int m, int off) ///code: 6m-2 bits +{ + int b_offset = 1 << (m - 1); + /* which half has more pulses in cases 0 to 2 */ + int half_more = BIT_POS(code, 6*m - 5) << (m - 1); + int half_other = b_offset - half_more; + + switch (BIT_STR(code, 6*m - 4, 2)) { /* case ID (2 bits) */ + case 0: /* 0 pulses in A, 6 pulses in B or vice versa */ + decode_1p_track(out, BIT_STR(code, 0, m), + m - 1, off + half_more); + decode_5p_track(out + 1, BIT_STR(code, m, 5*m - 5), + m - 1, off + half_more); + break; + case 1: /* 1 pulse in A, 5 pulses in B or vice versa */ + decode_1p_track(out, BIT_STR(code, 0, m), + m - 1, off + half_other); + decode_5p_track(out + 1, BIT_STR(code, m, 5*m - 5), + m - 1, off + half_more); + break; + case 2: /* 2 pulses in A, 4 pulses in B or vice versa */ + decode_2p_track(out, BIT_STR(code, 0, 2*m - 1), + m - 1, off + half_other); + decode_4p_track(out + 2, BIT_STR(code, 2*m - 1, 4*m - 4), + m - 1, off + half_more); + break; + case 3: /* 3 pulses in A, 3 pulses in B */ + decode_3p_track(out, BIT_STR(code, 3*m - 2, 3*m - 2), + m - 1, off); + decode_3p_track(out + 3, BIT_STR(code, 0, 3*m - 2), + m - 1, off + b_offset); + break; + } +} + +/** + * Decode the algebraic codebook index to pulse positions and signs, + * then construct the algebraic codebook vector + * + * @param[out] fixed_vector Buffer for the fixed codebook excitation + * @param[in] pulse_hi MSBs part of the pulse index array (higher modes only) + * @param[in] pulse_lo LSBs part of the pulse index array + * @param[in] mode Mode of the current frame + */ +static void decode_fixed_vector(float *fixed_vector, const uint16_t *pulse_hi, + const uint16_t *pulse_lo, const enum Mode mode) +{ + /* sig_pos stores for each track the decoded pulse position indexes + * (1-based) multiplied by its corresponding amplitude (+1 or -1) */ + int sig_pos[4][6]; + int spacing = (mode == MODE_6k60) ? 2 : 4; + int i, j; + + switch (mode) { + case MODE_6k60: + for (i = 0; i < 2; i++) + decode_1p_track(sig_pos[i], pulse_lo[i], 5, 1); + break; + case MODE_8k85: + for (i = 0; i < 4; i++) + decode_1p_track(sig_pos[i], pulse_lo[i], 4, 1); + break; + case MODE_12k65: + for (i = 0; i < 4; i++) + decode_2p_track(sig_pos[i], pulse_lo[i], 4, 1); + break; + case MODE_14k25: + for (i = 0; i < 2; i++) + decode_3p_track(sig_pos[i], pulse_lo[i], 4, 1); + for (i = 2; i < 4; i++) + decode_2p_track(sig_pos[i], pulse_lo[i], 4, 1); + break; + case MODE_15k85: + for (i = 0; i < 4; i++) + decode_3p_track(sig_pos[i], pulse_lo[i], 4, 1); + break; + case MODE_18k25: + for (i = 0; i < 4; i++) + decode_4p_track(sig_pos[i], (int) pulse_lo[i] + + ((int) pulse_hi[i] << 14), 4, 1); + break; + case MODE_19k85: + for (i = 0; i < 2; i++) + decode_5p_track(sig_pos[i], (int) pulse_lo[i] + + ((int) pulse_hi[i] << 10), 4, 1); + for (i = 2; i < 4; i++) + decode_4p_track(sig_pos[i], (int) pulse_lo[i] + + ((int) pulse_hi[i] << 14), 4, 1); + break; + case MODE_23k05: + case MODE_23k85: + for (i = 0; i < 4; i++) + decode_6p_track(sig_pos[i], (int) pulse_lo[i] + + ((int) pulse_hi[i] << 11), 4, 1); + break; + } + + memset(fixed_vector, 0, sizeof(float) * AMRWB_SFR_SIZE); + + for (i = 0; i < 4; i++) + for (j = 0; j < pulses_nb_per_mode_tr[mode][i]; j++) { + int pos = (FFABS(sig_pos[i][j]) - 1) * spacing + i; + + fixed_vector[pos] += sig_pos[i][j] < 0 ? -1.0 : 1.0; + } +} + +/** + * Decode pitch gain and fixed gain correction factor + * + * @param[in] vq_gain Vector-quantized index for gains + * @param[in] mode Mode of the current frame + * @param[out] fixed_gain_factor Decoded fixed gain correction factor + * @param[out] pitch_gain Decoded pitch gain + */ +static void decode_gains(const uint8_t vq_gain, const enum Mode mode, + float *fixed_gain_factor, float *pitch_gain) +{ + const int16_t *gains = (mode <= MODE_8k85 ? qua_gain_6b[vq_gain] : + qua_gain_7b[vq_gain]); + + *pitch_gain = gains[0] * (1.0f / (1 << 14)); + *fixed_gain_factor = gains[1] * (1.0f / (1 << 11)); +} + +/** + * Apply pitch sharpening filters to the fixed codebook vector + * + * @param[in] ctx The context + * @param[in,out] fixed_vector Fixed codebook excitation + */ +// XXX: Spec states this procedure should be applied when the pitch +// lag is less than 64, but this checking seems absent in reference and AMR-NB +static void pitch_sharpening(AMRWBContext *ctx, float *fixed_vector) +{ + int i; + + /* Tilt part */ + for (i = AMRWB_SFR_SIZE - 1; i != 0; i--) + fixed_vector[i] -= fixed_vector[i - 1] * ctx->tilt_coef; + + /* Periodicity enhancement part */ + for (i = ctx->pitch_lag_int; i < AMRWB_SFR_SIZE; i++) + fixed_vector[i] += fixed_vector[i - ctx->pitch_lag_int] * 0.85; +} + +/** + * Calculate the voicing factor (-1.0 = unvoiced to 1.0 = voiced) + * + * @param[in] p_vector, f_vector Pitch and fixed excitation vectors + * @param[in] p_gain, f_gain Pitch and fixed gains + */ +// XXX: There is something wrong with the precision here! The magnitudes +// of the energies are not correct. Please check the reference code carefully +static float voice_factor(float *p_vector, float p_gain, + float *f_vector, float f_gain) +{ + double p_ener = (double) ff_dot_productf(p_vector, p_vector, + AMRWB_SFR_SIZE) * p_gain * p_gain; + double f_ener = (double) ff_dot_productf(f_vector, f_vector, + AMRWB_SFR_SIZE) * f_gain * f_gain; + + return (p_ener - f_ener) / (p_ener + f_ener); +} + +/** + * Reduce fixed vector sparseness by smoothing with one of three IR filters + * Also known as "adaptive phase dispersion" + * + * @param[in] ctx The context + * @param[in,out] fixed_vector Unfiltered fixed vector + * @param[out] buf Space for modified vector if necessary + * + * @return The potentially overwritten filtered fixed vector address + */ +static float *anti_sparseness(AMRWBContext *ctx, + float *fixed_vector, float *buf) +{ + int ir_filter_nr; + + if (ctx->fr_cur_mode > MODE_8k85) // no filtering in higher modes + return fixed_vector; + + if (ctx->pitch_gain[0] < 0.6) { + ir_filter_nr = 0; // strong filtering + } else if (ctx->pitch_gain[0] < 0.9) { + ir_filter_nr = 1; // medium filtering + } else + ir_filter_nr = 2; // no filtering + + /* detect 'onset' */ + if (ctx->fixed_gain[0] > 3.0 * ctx->fixed_gain[1]) { + if (ir_filter_nr < 2) + ir_filter_nr++; + } else { + int i, count = 0; + + for (i = 0; i < 6; i++) + if (ctx->pitch_gain[i] < 0.6) + count++; + + if (count > 2) + ir_filter_nr = 0; + + if (ir_filter_nr > ctx->prev_ir_filter_nr + 1) + ir_filter_nr--; + } + + /* update ir filter strength history */ + ctx->prev_ir_filter_nr = ir_filter_nr; + + ir_filter_nr += (ctx->fr_cur_mode == MODE_8k85); + + if (ir_filter_nr < 2) { + int i; + const float *coef = ir_filters_lookup[ir_filter_nr]; + + /* Circular convolution code in the reference + * decoder was modified to avoid using one + * extra array. The filtered vector is given by: + * + * c2(n) = sum(i,0,len-1){ c(i) * coef( (n - i + len) % len ) } + */ + + memset(buf, 0, sizeof(float) * AMRWB_SFR_SIZE); + for (i = 0; i < AMRWB_SFR_SIZE; i++) + if (fixed_vector[i]) + ff_celp_circ_addf(buf, buf, coef, i, fixed_vector[i], + AMRWB_SFR_SIZE); + fixed_vector = buf; + } + + return fixed_vector; +} + +/** + * Calculate a stability factor {teta} based on distance between + * current and past isf. A value of 1 shows maximum signal stability + */ +static float stability_factor(const float *isf, const float *isf_past) +{ + int i; + float acc = 0.0; + + for (i = 0; i < LP_ORDER - 1; i++) + acc += (isf[i] - isf_past[i]) * (isf[i] - isf_past[i]); + + // XXX: This part is not so clear from the reference code + // the result is more accurate changing the "/ 256" to "* 512" + return FFMAX(0.0, 1.25 - acc * 0.8 * 512); +} + +/** + * Apply a non-linear fixed gain smoothing in order to reduce + * fluctuation in the energy of excitation + * + * @param[in] fixed_gain Unsmoothed fixed gain + * @param[in,out] prev_tr_gain Previous threshold gain (updated) + * @param[in] voice_fac Frame voicing factor + * @param[in] stab_fac Frame stability factor + * + * @return The smoothed gain + */ +static float noise_enhancer(float fixed_gain, float *prev_tr_gain, + float voice_fac, float stab_fac) +{ + float sm_fac = 0.5 * (1 - voice_fac) * stab_fac; + float g0; + + // XXX: the following fixed-point constants used to in(de)crement + // gain by 1.5dB were taken from the reference code, maybe it could + // be simpler + if (fixed_gain < *prev_tr_gain) { + g0 = FFMIN(*prev_tr_gain, fixed_gain + fixed_gain * + (6226 * (1.0f / (1 << 15)))); // +1.5 dB + } else + g0 = FFMAX(*prev_tr_gain, fixed_gain * + (27536 * (1.0f / (1 << 15)))); // -1.5 dB + + *prev_tr_gain = g0; // update next frame threshold + + return sm_fac * g0 + (1 - sm_fac) * fixed_gain; +} + +/** + * Filter the fixed_vector to emphasize the higher frequencies + * + * @param[in,out] fixed_vector Fixed codebook vector + * @param[in] voice_fac Frame voicing factor + */ +static void pitch_enhancer(float *fixed_vector, float voice_fac) +{ + int i; + float cpe = 0.125 * (1 + voice_fac); + float last = fixed_vector[0]; // holds c(i - 1) + + fixed_vector[0] -= cpe * fixed_vector[1]; + + for (i = 1; i < AMRWB_SFR_SIZE - 1; i++) { + float cur = fixed_vector[i]; + + fixed_vector[i] -= cpe * (last + fixed_vector[i + 1]); + last = cur; + } + + fixed_vector[AMRWB_SFR_SIZE - 1] -= cpe * last; +} + +/** + * Conduct 16th order linear predictive coding synthesis from excitation + * + * @param[in] ctx Pointer to the AMRWBContext + * @param[in] lpc Pointer to the LPC coefficients + * @param[out] excitation Buffer for synthesis final excitation + * @param[in] fixed_gain Fixed codebook gain for synthesis + * @param[in] fixed_vector Algebraic codebook vector + * @param[in,out] samples Pointer to the output samples and memory + */ +static void synthesis(AMRWBContext *ctx, float *lpc, float *excitation, + float fixed_gain, const float *fixed_vector, + float *samples) +{ + ff_weighted_vector_sumf(excitation, ctx->pitch_vector, fixed_vector, + ctx->pitch_gain[0], fixed_gain, AMRWB_SFR_SIZE); + + /* emphasize pitch vector contribution in low bitrate modes */ + if (ctx->pitch_gain[0] > 0.5 && ctx->fr_cur_mode <= MODE_8k85) { + int i; + float energy = ff_dot_productf(excitation, excitation, + AMRWB_SFR_SIZE); + + // XXX: Weird part in both ref code and spec. A unknown parameter + // {beta} seems to be identical to the current pitch gain + float pitch_factor = 0.25 * ctx->pitch_gain[0] * ctx->pitch_gain[0]; + + for (i = 0; i < AMRWB_SFR_SIZE; i++) + excitation[i] += pitch_factor * ctx->pitch_vector[i]; + + ff_scale_vector_to_given_sum_of_squares(excitation, excitation, + energy, AMRWB_SFR_SIZE); + } + + ff_celp_lp_synthesis_filterf(samples, lpc, excitation, + AMRWB_SFR_SIZE, LP_ORDER); +} + +/** + * Apply to synthesis a de-emphasis filter of the form: + * H(z) = 1 / (1 - m * z^-1) + * + * @param[out] out Output buffer + * @param[in] in Input samples array with in[-1] + * @param[in] m Filter coefficient + * @param[in,out] mem State from last filtering + */ +static void de_emphasis(float *out, float *in, float m, float mem[1]) +{ + int i; + + out[0] = in[0] + m * mem[0]; + + for (i = 1; i < AMRWB_SFR_SIZE; i++) + out[i] = in[i] + out[i - 1] * m; + + mem[0] = out[AMRWB_SFR_SIZE - 1]; +} + +/** + * Upsample a signal by 5/4 ratio (from 12.8kHz to 16kHz) using + * a FIR interpolation filter. Uses past data from before *in address + * + * @param[out] out Buffer for interpolated signal + * @param[in] in Current signal data (length 0.8*o_size) + * @param[in] o_size Output signal length + */ +static void upsample_5_4(float *out, const float *in, int o_size) +{ + const float *in0 = in - UPS_FIR_SIZE + 1; + int i, j, k; + int int_part = 0, frac_part; + + i = 0; + for (j = 0; j < o_size / 5; j++) { + out[i] = in[int_part]; + frac_part = 4; + i++; + + for (k = 1; k < 5; k++) { + out[i] = ff_dot_productf(in0 + int_part, upsample_fir[4 - frac_part], + UPS_MEM_SIZE); + int_part++; + frac_part--; + i++; + } + } +} + +/** + * Calculate the high-band gain based on encoded index (23k85 mode) or + * on the low-band speech signal and the Voice Activity Detection flag + * + * @param[in] ctx The context + * @param[in] synth LB speech synthesis at 12.8k + * @param[in] hb_idx Gain index for mode 23k85 only + * @param[in] vad VAD flag for the frame + */ +static float find_hb_gain(AMRWBContext *ctx, const float *synth, + uint16_t hb_idx, uint8_t vad) +{ + int wsp = (vad > 0); + float tilt; + + if (ctx->fr_cur_mode == MODE_23k85) + return qua_hb_gain[hb_idx] * (1.0f / (1 << 14)); + + tilt = ff_dot_productf(synth, synth + 1, AMRWB_SFR_SIZE - 1) / + ff_dot_productf(synth, synth, AMRWB_SFR_SIZE); + + /* return gain bounded by [0.1, 1.0] */ + return av_clipf((1.0 - FFMAX(0.0, tilt)) * (1.25 - 0.25 * wsp), 0.1, 1.0); +} + +/** + * Generate the high-band excitation with the same energy from the lower + * one and scaled by the given gain + * + * @param[in] ctx The context + * @param[out] hb_exc Buffer for the excitation + * @param[in] synth_exc Low-band excitation used for synthesis + * @param[in] hb_gain Wanted excitation gain + */ +static void scaled_hb_excitation(AMRWBContext *ctx, float *hb_exc, + const float *synth_exc, float hb_gain) +{ + int i; + float energy = ff_dot_productf(synth_exc, synth_exc, AMRWB_SFR_SIZE); + + /* Generate a white-noise excitation */ + for (i = 0; i < AMRWB_SFR_SIZE_16k; i++) + hb_exc[i] = 32768.0 - (uint16_t) av_lfg_get(&ctx->prng); + + ff_scale_vector_to_given_sum_of_squares(hb_exc, hb_exc, + energy * hb_gain * hb_gain, + AMRWB_SFR_SIZE_16k); +} + +/** + * Calculate the auto-correlation for the ISF difference vector + */ +static float auto_correlation(float *diff_isf, float mean, int lag) +{ + int i; + float sum = 0.0; + + for (i = 7; i < LP_ORDER - 2; i++) { + float prod = (diff_isf[i] - mean) * (diff_isf[i - lag] - mean); + sum += prod * prod; + } + return sum; +} + +/** + * Extrapolate a ISF vector to the 16kHz range (20th order LP) + * used at mode 6k60 LP filter for the high frequency band + * + * @param[out] out Buffer for extrapolated isf + * @param[in] isf Input isf vector + */ +static void extrapolate_isf(float out[LP_ORDER_16k], float isf[LP_ORDER]) +{ + float diff_isf[LP_ORDER - 2], diff_mean; + float *diff_hi = diff_isf - LP_ORDER + 1; // diff array for extrapolated indexes + float corr_lag[3]; + float est, scale; + int i, i_max_corr; + + memcpy(out, isf, (LP_ORDER - 1) * sizeof(float)); + out[LP_ORDER_16k - 1] = isf[LP_ORDER - 1]; + + /* Calculate the difference vector */ + for (i = 0; i < LP_ORDER - 2; i++) + diff_isf[i] = isf[i + 1] - isf[i]; + + diff_mean = 0.0; + for (i = 2; i < LP_ORDER - 2; i++) + diff_mean += diff_isf[i] * (1.0f / (LP_ORDER - 4)); + + /* Find which is the maximum autocorrelation */ + i_max_corr = 0; + for (i = 0; i < 3; i++) { + corr_lag[i] = auto_correlation(diff_isf, diff_mean, i + 2); + + if (corr_lag[i] > corr_lag[i_max_corr]) + i_max_corr = i; + } + i_max_corr++; + + for (i = LP_ORDER - 1; i < LP_ORDER_16k - 1; i++) + out[i] = isf[i - 1] + isf[i - 1 - i_max_corr] + - isf[i - 2 - i_max_corr]; + + /* Calculate an estimate for ISF(18) and scale ISF based on the error */ + est = 7965 + (out[2] - out[3] - out[4]) / 6.0; + scale = 0.5 * (FFMIN(est, 7600) - out[LP_ORDER - 2]) / + (out[LP_ORDER_16k - 2] - out[LP_ORDER - 2]); + + for (i = LP_ORDER - 1; i < LP_ORDER_16k - 1; i++) + diff_hi[i] = scale * (out[i] - out[i - 1]); + + /* Stability insurance */ + for (i = LP_ORDER; i < LP_ORDER_16k - 1; i++) + if (diff_hi[i] + diff_hi[i - 1] < 5.0) { + if (diff_hi[i] > diff_hi[i - 1]) { + diff_hi[i - 1] = 5.0 - diff_hi[i]; + } else + diff_hi[i] = 5.0 - diff_hi[i - 1]; + } + + for (i = LP_ORDER - 1; i < LP_ORDER_16k - 1; i++) + out[i] = out[i - 1] + diff_hi[i] * (1.0f / (1 << 15)); + + /* Scale the ISF vector for 16000 Hz */ + for (i = 0; i < LP_ORDER_16k - 1; i++) + out[i] *= 0.8; +} + +/** + * Spectral expand the LP coefficients using the equation: + * y[i] = x[i] * (gamma ** i) + * + * @param[out] out Output buffer (may use input array) + * @param[in] lpc LP coefficients array + * @param[in] gamma Weighting factor + * @param[in] size LP array size + */ +static void lpc_weighting(float *out, const float *lpc, float gamma, int size) +{ + int i; + float fac = gamma; + + for (i = 0; i < size; i++) { + out[i] = lpc[i] * fac; + fac *= gamma; + } +} + +/** + * Conduct 20th order linear predictive coding synthesis for the high + * frequency band excitation at 16kHz + * + * @param[in] ctx The context + * @param[in] subframe Current subframe index (0 to 3) + * @param[in,out] samples Pointer to the output speech samples + * @param[in] exc Generated white-noise scaled excitation + * @param[in] isf Current frame isf vector + * @param[in] isf_past Past frame final isf vector + */ +static void hb_synthesis(AMRWBContext *ctx, int subframe, float *samples, + const float *exc, const float *isf, const float *isf_past) +{ + float hb_lpc[LP_ORDER_16k]; + enum Mode mode = ctx->fr_cur_mode; + + if (mode == MODE_6k60) { + float e_isf[LP_ORDER_16k]; // ISF vector for extrapolation + double e_isp[LP_ORDER_16k]; + + ff_weighted_vector_sumf(e_isf, isf_past, isf, isfp_inter[subframe], + 1.0 - isfp_inter[subframe], LP_ORDER); + + extrapolate_isf(e_isf, e_isf); + + e_isf[LP_ORDER_16k - 1] *= 2.0; + ff_acelp_lsf2lspd(e_isp, e_isf, LP_ORDER_16k); + ff_amrwb_lsp2lpc(e_isp, hb_lpc, LP_ORDER_16k); + + lpc_weighting(hb_lpc, hb_lpc, 0.9, LP_ORDER_16k); + } else { + lpc_weighting(hb_lpc, ctx->lp_coef[subframe], 0.6, LP_ORDER); + } + + ff_celp_lp_synthesis_filterf(samples, hb_lpc, exc, AMRWB_SFR_SIZE_16k, + (mode == MODE_6k60) ? LP_ORDER_16k : LP_ORDER); +} + +/** + * Apply to high-band samples a 15th order filter + * The filter characteristic depends on the given coefficients + * + * @param[out] out Buffer for filtered output + * @param[in] fir_coef Filter coefficients + * @param[in,out] mem State from last filtering (updated) + * @param[in] in Input speech data (high-band) + * + * @remark It is safe to pass the same array in in and out parameters + */ +static void hb_fir_filter(float *out, const float fir_coef[HB_FIR_SIZE + 1], + float mem[HB_FIR_SIZE], const float *in) +{ + int i, j; + float data[AMRWB_SFR_SIZE_16k + HB_FIR_SIZE]; // past and current samples + + memcpy(data, mem, HB_FIR_SIZE * sizeof(float)); + memcpy(data + HB_FIR_SIZE, in, AMRWB_SFR_SIZE_16k * sizeof(float)); + + for (i = 0; i < AMRWB_SFR_SIZE_16k; i++) { + out[i] = 0.0; + for (j = 0; j <= HB_FIR_SIZE; j++) + out[i] += data[i + j] * fir_coef[j]; + } + + memcpy(mem, data + AMRWB_SFR_SIZE_16k, HB_FIR_SIZE * sizeof(float)); +} + +/** + * Update context state before the next subframe + */ +static void update_sub_state(AMRWBContext *ctx) +{ + memmove(&ctx->excitation_buf[0], &ctx->excitation_buf[AMRWB_SFR_SIZE], + (AMRWB_P_DELAY_MAX + LP_ORDER + 1) * sizeof(float)); + + memmove(&ctx->pitch_gain[1], &ctx->pitch_gain[0], 5 * sizeof(float)); + memmove(&ctx->fixed_gain[1], &ctx->fixed_gain[0], 1 * sizeof(float)); + + memmove(&ctx->samples_az[0], &ctx->samples_az[AMRWB_SFR_SIZE], + LP_ORDER * sizeof(float)); + memmove(&ctx->samples_up[0], &ctx->samples_up[AMRWB_SFR_SIZE], + UPS_MEM_SIZE * sizeof(float)); + memmove(&ctx->samples_hb[0], &ctx->samples_hb[AMRWB_SFR_SIZE_16k], + LP_ORDER_16k * sizeof(float)); +} + +static int amrwb_decode_frame(AVCodecContext *avctx, void *data, int *data_size, + AVPacket *avpkt) +{ + AMRWBContext *ctx = avctx->priv_data; + AMRWBFrame *cf = &ctx->frame; + const uint8_t *buf = avpkt->data; + int buf_size = avpkt->size; + int expected_fr_size, header_size; + float *buf_out = data; + float spare_vector[AMRWB_SFR_SIZE]; // extra stack space to hold result from anti-sparseness processing + float fixed_gain_factor; // fixed gain correction factor (gamma) + float *synth_fixed_vector; // pointer to the fixed vector that synthesis should use + float synth_fixed_gain; // the fixed gain that synthesis should use + float voice_fac, stab_fac; // parameters used for gain smoothing + float synth_exc[AMRWB_SFR_SIZE]; // post-processed excitation for synthesis + float hb_exc[AMRWB_SFR_SIZE_16k]; // excitation for the high frequency band + float hb_samples[AMRWB_SFR_SIZE_16k]; // filtered high-band samples from synthesis + float hb_gain; + int sub, i; + + header_size = decode_mime_header(ctx, buf); + expected_fr_size = ((cf_sizes_wb[ctx->fr_cur_mode] + 7) >> 3) + 1; + + if (buf_size < expected_fr_size) { + av_log(avctx, AV_LOG_ERROR, + "Frame too small (%d bytes). Truncated file?\n", buf_size); + *data_size = 0; + return buf_size; + } + + if (!ctx->fr_quality || ctx->fr_cur_mode > MODE_SID) + av_log(avctx, AV_LOG_ERROR, "Encountered a bad or corrupted frame\n"); + + if (ctx->fr_cur_mode == MODE_SID) /* Comfort noise frame */ + av_log_missing_feature(avctx, "SID mode", 1); + + if (ctx->fr_cur_mode >= MODE_SID) + return -1; + + ff_amr_bit_reorder((uint16_t *) &ctx->frame, sizeof(AMRWBFrame), + buf + header_size, amr_bit_orderings_by_mode[ctx->fr_cur_mode]); + + /* Decode the quantized ISF vector */ + if (ctx->fr_cur_mode == MODE_6k60) { + decode_isf_indices_36b(cf->isp_id, ctx->isf_cur); + } else { + decode_isf_indices_46b(cf->isp_id, ctx->isf_cur); + } + + isf_add_mean_and_past(ctx->isf_cur, ctx->isf_q_past); + ff_set_min_dist_lsf(ctx->isf_cur, MIN_ISF_SPACING, LP_ORDER - 1); + + stab_fac = stability_factor(ctx->isf_cur, ctx->isf_past_final); + + ctx->isf_cur[LP_ORDER - 1] *= 2.0; + ff_acelp_lsf2lspd(ctx->isp[3], ctx->isf_cur, LP_ORDER); + + /* Generate a ISP vector for each subframe */ + if (ctx->first_frame) { + ctx->first_frame = 0; + memcpy(ctx->isp_sub4_past, ctx->isp[3], LP_ORDER * sizeof(double)); + } + interpolate_isp(ctx->isp, ctx->isp_sub4_past); + + for (sub = 0; sub < 4; sub++) + ff_amrwb_lsp2lpc(ctx->isp[sub], ctx->lp_coef[sub], LP_ORDER); + + for (sub = 0; sub < 4; sub++) { + const AMRWBSubFrame *cur_subframe = &cf->subframe[sub]; + float *sub_buf = buf_out + sub * AMRWB_SFR_SIZE_16k; + + /* Decode adaptive codebook (pitch vector) */ + decode_pitch_vector(ctx, cur_subframe, sub); + /* Decode innovative codebook (fixed vector) */ + decode_fixed_vector(ctx->fixed_vector, cur_subframe->pul_ih, + cur_subframe->pul_il, ctx->fr_cur_mode); + + pitch_sharpening(ctx, ctx->fixed_vector); + + decode_gains(cur_subframe->vq_gain, ctx->fr_cur_mode, + &fixed_gain_factor, &ctx->pitch_gain[0]); + + ctx->fixed_gain[0] = + ff_amr_set_fixed_gain(fixed_gain_factor, + ff_dot_productf(ctx->fixed_vector, ctx->fixed_vector, + AMRWB_SFR_SIZE) / AMRWB_SFR_SIZE, + ctx->prediction_error, + ENERGY_MEAN, energy_pred_fac); + + /* Calculate voice factor and store tilt for next subframe */ + voice_fac = voice_factor(ctx->pitch_vector, ctx->pitch_gain[0], + ctx->fixed_vector, ctx->fixed_gain[0]); + ctx->tilt_coef = voice_fac * 0.25 + 0.25; + + /* Construct current excitation */ + for (i = 0; i < AMRWB_SFR_SIZE; i++) { + ctx->excitation[i] *= ctx->pitch_gain[0]; + ctx->excitation[i] += ctx->fixed_gain[0] * ctx->fixed_vector[i]; + ctx->excitation[i] = truncf(ctx->excitation[i]); + } + + /* Post-processing of excitation elements */ + synth_fixed_gain = noise_enhancer(ctx->fixed_gain[0], &ctx->prev_tr_gain, + voice_fac, stab_fac); + + synth_fixed_vector = anti_sparseness(ctx, ctx->fixed_vector, + spare_vector); + + pitch_enhancer(synth_fixed_vector, voice_fac); + + synthesis(ctx, ctx->lp_coef[sub], synth_exc, synth_fixed_gain, + synth_fixed_vector, &ctx->samples_az[LP_ORDER]); + + /* Synthesis speech post-processing */ + de_emphasis(&ctx->samples_up[UPS_MEM_SIZE], + &ctx->samples_az[LP_ORDER], PREEMPH_FAC, ctx->demph_mem); + + ff_acelp_apply_order_2_transfer_function(&ctx->samples_up[UPS_MEM_SIZE], + &ctx->samples_up[UPS_MEM_SIZE], hpf_zeros, hpf_31_poles, + hpf_31_gain, ctx->hpf_31_mem, AMRWB_SFR_SIZE); + + upsample_5_4(sub_buf, &ctx->samples_up[UPS_FIR_SIZE], + AMRWB_SFR_SIZE_16k); + + /* High frequency band (6.4 - 7.0 kHz) generation part */ + ff_acelp_apply_order_2_transfer_function(hb_samples, + &ctx->samples_up[UPS_MEM_SIZE], hpf_zeros, hpf_400_poles, + hpf_400_gain, ctx->hpf_400_mem, AMRWB_SFR_SIZE); + + hb_gain = find_hb_gain(ctx, hb_samples, + cur_subframe->hb_gain, cf->vad); + + scaled_hb_excitation(ctx, hb_exc, synth_exc, hb_gain); + + hb_synthesis(ctx, sub, &ctx->samples_hb[LP_ORDER_16k], + hb_exc, ctx->isf_cur, ctx->isf_past_final); + + /* High-band post-processing filters */ + hb_fir_filter(hb_samples, bpf_6_7_coef, ctx->bpf_6_7_mem, + &ctx->samples_hb[LP_ORDER_16k]); + + if (ctx->fr_cur_mode == MODE_23k85) + hb_fir_filter(hb_samples, lpf_7_coef, ctx->lpf_7_mem, + hb_samples); + + /* Add the low and high frequency bands */ + for (i = 0; i < AMRWB_SFR_SIZE_16k; i++) + sub_buf[i] = (sub_buf[i] + hb_samples[i]) * (1.0f / (1 << 15)); + + /* Update buffers and history */ + update_sub_state(ctx); + } + + /* update state for next frame */ + memcpy(ctx->isp_sub4_past, ctx->isp[3], LP_ORDER * sizeof(ctx->isp[3][0])); + memcpy(ctx->isf_past_final, ctx->isf_cur, LP_ORDER * sizeof(float)); + + /* report how many samples we got */ + *data_size = 4 * AMRWB_SFR_SIZE_16k * sizeof(float); + + return expected_fr_size; +} + +AVCodec amrwb_decoder = { + .name = "amrwb", + .type = CODEC_TYPE_AUDIO, + .id = CODEC_ID_AMR_WB, + .priv_data_size = sizeof(AMRWBContext), + .init = amrwb_decode_init, + .decode = amrwb_decode_frame, + .long_name = NULL_IF_CONFIG_SMALL("Adaptive Multi-Rate WideBand"), + .sample_fmts = (enum SampleFormat[]){SAMPLE_FMT_FLT,SAMPLE_FMT_NONE}, +}; |