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authorMaxim Poliakovski <max_pole@gmx.de>2013-10-10 20:32:14 +0200
committerMichael Niedermayer <michaelni@gmx.at>2013-12-29 01:11:16 +0100
commit2e1fb96af36348479e14aa85f445915ea09e70fa (patch)
tree218f3e97d19197477c42097e9ed3b9384fc3e6ae
parent8e90c7285d1cbf62a9c9a5f9e6efda998dc0d454 (diff)
downloadffmpeg-2e1fb96af36348479e14aa85f445915ea09e70fa.tar.gz
ATRAC+ decoder
Cleanup by Diego Biurrun. Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat
-rw-r--r--Changelog1
-rw-r--r--MAINTAINERS1
-rwxr-xr-xconfigure1
-rw-r--r--doc/general.texi1
-rw-r--r--libavcodec/Makefile2
-rw-r--r--libavcodec/allcodecs.c1
-rw-r--r--libavcodec/atrac3plus.c1813
-rw-r--r--libavcodec/atrac3plus.h240
-rw-r--r--libavcodec/atrac3plus_data.h1914
-rw-r--r--libavcodec/atrac3plusdec.c383
-rw-r--r--libavcodec/atrac3plusdsp.c637
-rw-r--r--libavcodec/version.h2
12 files changed, 4995 insertions, 1 deletions
diff --git a/Changelog b/Changelog
index dd68a01980..d92f5bd454 100644
--- a/Changelog
+++ b/Changelog
@@ -15,6 +15,7 @@ version <next>
- aeval filter
- stereoscopic 3d metadata handling
- WebP encoding via libwebp
+- ATRAC3+ decoder
version 2.1:
diff --git a/MAINTAINERS b/MAINTAINERS
index e51d05a803..bf5a234563 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -139,6 +139,7 @@ Codecs:
ass* Aurelien Jacobs
asv* Michael Niedermayer
atrac3* Benjamin Larsson
+ atrac3plus* Maxim Poliakovski
bgmc.c, bgmc.h Thilo Borgmann
bink.c Kostya Shishkov
binkaudio.c Peter Ross
diff --git a/configure b/configure
index 9c210e9e55..1fec30f4eb 100755
--- a/configure
+++ b/configure
@@ -1865,6 +1865,7 @@ asv2_decoder_select="dsputil"
asv2_encoder_select="dsputil"
atrac1_decoder_select="mdct sinewin"
atrac3_decoder_select="mdct"
+atrac3p_decoder_select="mdct sinewin"
avrn_decoder_select="exif"
bink_decoder_select="dsputil hpeldsp"
binkaudio_dct_decoder_select="mdct rdft dct sinewin"
diff --git a/doc/general.texi b/doc/general.texi
index 0ac6455979..fb1c8b8569 100644
--- a/doc/general.texi
+++ b/doc/general.texi
@@ -833,6 +833,7 @@ following image formats are supported:
@tab QuickTime fourcc 'alac'
@item ATRAC1 @tab @tab X
@item ATRAC3 @tab @tab X
+@item ATRAC3+ @tab @tab X
@item Bink Audio @tab @tab X
@tab Used in Bink and Smacker files in many games.
@item CELT @tab @tab E
diff --git a/libavcodec/Makefile b/libavcodec/Makefile
index ef74f21429..c3f41149b7 100644
--- a/libavcodec/Makefile
+++ b/libavcodec/Makefile
@@ -124,6 +124,8 @@ OBJS-$(CONFIG_ASV2_DECODER) += asvdec.o asv.o mpeg12data.o
OBJS-$(CONFIG_ASV2_ENCODER) += asvenc.o asv.o mpeg12data.o
OBJS-$(CONFIG_ATRAC1_DECODER) += atrac1.o atrac.o
OBJS-$(CONFIG_ATRAC3_DECODER) += atrac3.o atrac.o
+OBJS-$(CONFIG_ATRAC3P_DECODER) += atrac3plusdec.o atrac3plus.o \
+ atrac3plusdsp.o atrac.o
OBJS-$(CONFIG_AURA_DECODER) += cyuv.o
OBJS-$(CONFIG_AURA2_DECODER) += aura.o
OBJS-$(CONFIG_AVRN_DECODER) += avrndec.o mjpegdec.o mjpeg.o
diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c
index e3a825187f..cacc81f3cf 100644
--- a/libavcodec/allcodecs.c
+++ b/libavcodec/allcodecs.c
@@ -328,6 +328,7 @@ void avcodec_register_all(void)
REGISTER_DECODER(APE, ape);
REGISTER_DECODER(ATRAC1, atrac1);
REGISTER_DECODER(ATRAC3, atrac3);
+ REGISTER_DECODER(ATRAC3P, atrac3p);
REGISTER_DECODER(BINKAUDIO_DCT, binkaudio_dct);
REGISTER_DECODER(BINKAUDIO_RDFT, binkaudio_rdft);
REGISTER_DECODER(BMV_AUDIO, bmv_audio);
diff --git a/libavcodec/atrac3plus.c b/libavcodec/atrac3plus.c
new file mode 100644
index 0000000000..8bb1c60716
--- /dev/null
+++ b/libavcodec/atrac3plus.c
@@ -0,0 +1,1813 @@
+/*
+ * ATRAC3+ compatible decoder
+ *
+ * Copyright (c) 2010-2013 Maxim Poliakovski
+ *
+ * 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
+ * Bitstream parser for ATRAC3+ decoder.
+ */
+
+#include "libavutil/avassert.h"
+#include "avcodec.h"
+#include "get_bits.h"
+#include "atrac3plus.h"
+#include "atrac3plus_data.h"
+
+static VLC_TYPE tables_data[154276][2];
+static VLC wl_vlc_tabs[4];
+static VLC sf_vlc_tabs[8];
+static VLC ct_vlc_tabs[4];
+static VLC spec_vlc_tabs[112];
+static VLC gain_vlc_tabs[11];
+static VLC tone_vlc_tabs[7];
+
+#define GET_DELTA(gb, delta_bits) \
+ ((delta_bits) ? get_bits((gb), (delta_bits)) : 0)
+
+/**
+ * Generate canonical VLC table from given descriptor.
+ *
+ * @param[in] cb ptr to codebook descriptor
+ * @param[in] xlat ptr to translation table or NULL
+ * @param[in,out] tab_offset starting offset to the generated vlc table
+ * @param[out] out_vlc ptr to vlc table to be generated
+ */
+static av_cold void build_canonical_huff(const uint8_t *cb, const uint8_t *xlat,
+ int *tab_offset, VLC *out_vlc)
+{
+ int i, b;
+ uint16_t codes[256];
+ uint8_t bits[256];
+ unsigned code = 0;
+ int index = 0;
+ int min_len = *cb++; // get shortest codeword length
+ int max_len = *cb++; // get longest codeword length
+
+ for (b = min_len; b <= max_len; b++) {
+ for (i = *cb++; i > 0; i--) {
+ av_assert0(index < 256);
+ bits[index] = b;
+ codes[index] = code++;
+ index++;
+ }
+ code <<= 1;
+ }
+
+ out_vlc->table = &tables_data[*tab_offset];
+ out_vlc->table_allocated = 1 << max_len;
+
+ ff_init_vlc_sparse(out_vlc, max_len, index, bits, 1, 1, codes, 2, 2,
+ xlat, 1, 1, INIT_VLC_USE_NEW_STATIC);
+
+ *tab_offset += 1 << max_len;
+}
+
+av_cold void ff_atrac3p_init_vlcs(void)
+{
+ int i, wl_vlc_offs, ct_vlc_offs, sf_vlc_offs, tab_offset;
+
+ static int wl_nb_bits[4] = { 2, 3, 5, 5 };
+ static int wl_nb_codes[4] = { 3, 5, 8, 8 };
+ static const uint8_t *wl_bits[4] = {
+ atrac3p_wl_huff_bits1, atrac3p_wl_huff_bits2,
+ atrac3p_wl_huff_bits3, atrac3p_wl_huff_bits4
+ };
+ static const uint8_t *wl_codes[4] = {
+ atrac3p_wl_huff_code1, atrac3p_wl_huff_code2,
+ atrac3p_wl_huff_code3, atrac3p_wl_huff_code4
+ };
+ static const uint8_t *wl_xlats[4] = {
+ atrac3p_wl_huff_xlat1, atrac3p_wl_huff_xlat2, NULL, NULL
+ };
+
+ static int ct_nb_bits[4] = { 3, 4, 4, 4 };
+ static int ct_nb_codes[4] = { 4, 8, 8, 8 };
+ static const uint8_t *ct_bits[4] = {
+ atrac3p_ct_huff_bits1, atrac3p_ct_huff_bits2,
+ atrac3p_ct_huff_bits2, atrac3p_ct_huff_bits3
+ };
+ static const uint8_t *ct_codes[4] = {
+ atrac3p_ct_huff_code1, atrac3p_ct_huff_code2,
+ atrac3p_ct_huff_code2, atrac3p_ct_huff_code3
+ };
+ static const uint8_t *ct_xlats[4] = {
+ NULL, NULL, atrac3p_ct_huff_xlat1, NULL
+ };
+
+ static int sf_nb_bits[8] = { 9, 9, 9, 9, 6, 6, 7, 7 };
+ static int sf_nb_codes[8] = { 64, 64, 64, 64, 16, 16, 16, 16 };
+ static const uint8_t *sf_bits[8] = {
+ atrac3p_sf_huff_bits1, atrac3p_sf_huff_bits1, atrac3p_sf_huff_bits2,
+ atrac3p_sf_huff_bits3, atrac3p_sf_huff_bits4, atrac3p_sf_huff_bits4,
+ atrac3p_sf_huff_bits5, atrac3p_sf_huff_bits6
+ };
+ static const uint16_t *sf_codes[8] = {
+ atrac3p_sf_huff_code1, atrac3p_sf_huff_code1, atrac3p_sf_huff_code2,
+ atrac3p_sf_huff_code3, atrac3p_sf_huff_code4, atrac3p_sf_huff_code4,
+ atrac3p_sf_huff_code5, atrac3p_sf_huff_code6
+ };
+ static const uint8_t *sf_xlats[8] = {
+ atrac3p_sf_huff_xlat1, atrac3p_sf_huff_xlat2, NULL, NULL,
+ atrac3p_sf_huff_xlat4, atrac3p_sf_huff_xlat5, NULL, NULL
+ };
+
+ static const uint8_t *gain_cbs[11] = {
+ atrac3p_huff_gain_npoints1_cb, atrac3p_huff_gain_npoints1_cb,
+ atrac3p_huff_gain_lev1_cb, atrac3p_huff_gain_lev2_cb,
+ atrac3p_huff_gain_lev3_cb, atrac3p_huff_gain_lev4_cb,
+ atrac3p_huff_gain_loc3_cb, atrac3p_huff_gain_loc1_cb,
+ atrac3p_huff_gain_loc4_cb, atrac3p_huff_gain_loc2_cb,
+ atrac3p_huff_gain_loc5_cb
+ };
+ static const uint8_t *gain_xlats[11] = {
+ NULL, atrac3p_huff_gain_npoints2_xlat, atrac3p_huff_gain_lev1_xlat,
+ atrac3p_huff_gain_lev2_xlat, atrac3p_huff_gain_lev3_xlat,
+ atrac3p_huff_gain_lev4_xlat, atrac3p_huff_gain_loc3_xlat,
+ atrac3p_huff_gain_loc1_xlat, atrac3p_huff_gain_loc4_xlat,
+ atrac3p_huff_gain_loc2_xlat, atrac3p_huff_gain_loc5_xlat
+ };
+
+ static const uint8_t *tone_cbs[7] = {
+ atrac3p_huff_tonebands_cb, atrac3p_huff_numwavs1_cb,
+ atrac3p_huff_numwavs2_cb, atrac3p_huff_wav_ampsf1_cb,
+ atrac3p_huff_wav_ampsf2_cb, atrac3p_huff_wav_ampsf3_cb,
+ atrac3p_huff_freq_cb
+ };
+ static const uint8_t *tone_xlats[7] = {
+ NULL, NULL, atrac3p_huff_numwavs2_xlat, atrac3p_huff_wav_ampsf1_xlat,
+ atrac3p_huff_wav_ampsf2_xlat, atrac3p_huff_wav_ampsf3_xlat,
+ atrac3p_huff_freq_xlat
+ };
+
+ for (i = 0, wl_vlc_offs = 0, ct_vlc_offs = 2508; i < 4; i++) {
+ wl_vlc_tabs[i].table = &tables_data[wl_vlc_offs];
+ wl_vlc_tabs[i].table_allocated = 1 << wl_nb_bits[i];
+ ct_vlc_tabs[i].table = &tables_data[ct_vlc_offs];
+ ct_vlc_tabs[i].table_allocated = 1 << ct_nb_bits[i];
+
+ ff_init_vlc_sparse(&wl_vlc_tabs[i], wl_nb_bits[i], wl_nb_codes[i],
+ wl_bits[i], 1, 1,
+ wl_codes[i], 1, 1,
+ wl_xlats[i], 1, 1,
+ INIT_VLC_USE_NEW_STATIC);
+
+ ff_init_vlc_sparse(&ct_vlc_tabs[i], ct_nb_bits[i], ct_nb_codes[i],
+ ct_bits[i], 1, 1,
+ ct_codes[i], 1, 1,
+ ct_xlats[i], 1, 1,
+ INIT_VLC_USE_NEW_STATIC);
+
+ wl_vlc_offs += wl_vlc_tabs[i].table_allocated;
+ ct_vlc_offs += ct_vlc_tabs[i].table_allocated;
+ }
+
+ for (i = 0, sf_vlc_offs = 76; i < 8; i++) {
+ sf_vlc_tabs[i].table = &tables_data[sf_vlc_offs];
+ sf_vlc_tabs[i].table_allocated = 1 << sf_nb_bits[i];
+
+ ff_init_vlc_sparse(&sf_vlc_tabs[i], sf_nb_bits[i], sf_nb_codes[i],
+ sf_bits[i], 1, 1,
+ sf_codes[i], 2, 2,
+ sf_xlats[i], 1, 1,
+ INIT_VLC_USE_NEW_STATIC);
+ sf_vlc_offs += sf_vlc_tabs[i].table_allocated;
+ }
+
+ tab_offset = 2564;
+
+ /* build huffman tables for spectrum decoding */
+ for (i = 0; i < 112; i++) {
+ if (atrac3p_spectra_tabs[i].cb)
+ build_canonical_huff(atrac3p_spectra_tabs[i].cb,
+ atrac3p_spectra_tabs[i].xlat,
+ &tab_offset, &spec_vlc_tabs[i]);
+ else
+ spec_vlc_tabs[i].table = 0;
+ }
+
+ /* build huffman tables for gain data decoding */
+ for (i = 0; i < 11; i++)
+ build_canonical_huff(gain_cbs[i], gain_xlats[i], &tab_offset, &gain_vlc_tabs[i]);
+
+ /* build huffman tables for tone decoding */
+ for (i = 0; i < 7; i++)
+ build_canonical_huff(tone_cbs[i], tone_xlats[i], &tab_offset, &tone_vlc_tabs[i]);
+}
+
+/**
+ * Decode number of coded quantization units.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] chan ptr to the channel parameters
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int num_coded_units(GetBitContext *gb, Atrac3pChanParams *chan,
+ Atrac3pChanUnitCtx *ctx, AVCodecContext *avctx)
+{
+ chan->fill_mode = get_bits(gb, 2);
+ if (!chan->fill_mode) {
+ chan->num_coded_vals = ctx->num_quant_units;
+ } else {
+ chan->num_coded_vals = get_bits(gb, 5);
+ if (chan->num_coded_vals > ctx->num_quant_units) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Invalid number of transmitted units!\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ if (chan->fill_mode == 3)
+ chan->split_point = get_bits(gb, 2) + (chan->ch_num << 1) + 1;
+ }
+
+ return 0;
+}
+
+/**
+ * Add weighting coefficients to the decoded word-length information.
+ *
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in,out] chan ptr to the channel parameters
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int add_wordlen_weights(Atrac3pChanUnitCtx *ctx,
+ Atrac3pChanParams *chan, int wtab_idx,
+ AVCodecContext *avctx)
+{
+ int i;
+ const int8_t *weights_tab =
+ &atrac3p_wl_weights[chan->ch_num * 3 + wtab_idx - 1][0];
+
+ for (i = 0; i < ctx->num_quant_units; i++) {
+ chan->qu_wordlen[i] += weights_tab[i];
+ if (chan->qu_wordlen[i] < 0 || chan->qu_wordlen[i] > 7) {
+ av_log(avctx, AV_LOG_ERROR,
+ "WL index out of range: pos=%d, val=%d!\n",
+ i, chan->qu_wordlen[i]);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * Subtract weighting coefficients from decoded scalefactors.
+ *
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in,out] chan ptr to the channel parameters
+ * @param[in] wtab_idx index of table of weights
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int subtract_sf_weights(Atrac3pChanUnitCtx *ctx,
+ Atrac3pChanParams *chan, int wtab_idx,
+ AVCodecContext *avctx)
+{
+ int i;
+ const int8_t *weights_tab = &atrac3p_sf_weights[wtab_idx - 1][0];
+
+ for (i = 0; i < ctx->used_quant_units; i++) {
+ chan->qu_sf_idx[i] -= weights_tab[i];
+ if (chan->qu_sf_idx[i] < 0 || chan->qu_sf_idx[i] > 63) {
+ av_log(avctx, AV_LOG_ERROR,
+ "SF index out of range: pos=%d, val=%d!\n",
+ i, chan->qu_sf_idx[i]);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * Unpack vector quantization tables.
+ *
+ * @param[in] start_val start value for the unpacked table
+ * @param[in] shape_vec ptr to table to unpack
+ * @param[out] dst ptr to output array
+ * @param[in] num_values number of values to unpack
+ */
+static inline void unpack_vq_shape(int start_val, const int8_t *shape_vec,
+ int *dst, int num_values)
+{
+ int i;
+
+ if (num_values) {
+ dst[0] = dst[1] = dst[2] = start_val;
+ for (i = 3; i < num_values; i++)
+ dst[i] = start_val - shape_vec[atrac3p_qu_num_to_seg[i] - 1];
+ }
+}
+
+#define UNPACK_SF_VQ_SHAPE(gb, dst, num_vals) \
+ start_val = get_bits((gb), 6); \
+ unpack_vq_shape(start_val, &atrac3p_sf_shapes[get_bits((gb), 6)][0], \
+ (dst), (num_vals))
+
+/**
+ * Decode word length for each quantization unit of a channel.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] ch_num channel to process
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_channel_wordlen(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int ch_num, AVCodecContext *avctx)
+{
+ int i, weight_idx = 0, delta, diff, pos, delta_bits, min_val, flag,
+ ret, start_val;
+ VLC *vlc_tab;
+ Atrac3pChanParams *chan = &ctx->channels[ch_num];
+ Atrac3pChanParams *ref_chan = &ctx->channels[0];
+
+ chan->fill_mode = 0;
+
+ switch (get_bits(gb, 2)) { /* switch according to coding mode */
+ case 0: /* coded using constant number of bits */
+ for (i = 0; i < ctx->num_quant_units; i++)
+ chan->qu_wordlen[i] = get_bits(gb, 3);
+ break;
+ case 1:
+ if (ch_num) {
+ if ((ret = num_coded_units(gb, chan, ctx, avctx)) < 0)
+ return ret;
+
+ if (chan->num_coded_vals) {
+ vlc_tab = &wl_vlc_tabs[get_bits(gb, 2)];
+
+ for (i = 0; i < chan->num_coded_vals; i++) {
+ delta = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+ chan->qu_wordlen[i] = (ref_chan->qu_wordlen[i] + delta) & 7;
+ }
+ }
+ } else {
+ weight_idx = get_bits(gb, 2);
+ if ((ret = num_coded_units(gb, chan, ctx, avctx)) < 0)
+ return ret;
+
+ if (chan->num_coded_vals) {
+ pos = get_bits(gb, 5);
+ if (pos > chan->num_coded_vals) {
+ av_log(avctx, AV_LOG_ERROR,
+ "WL mode 1: invalid position!\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ delta_bits = get_bits(gb, 2);
+ min_val = get_bits(gb, 3);
+
+ for (i = 0; i < pos; i++)
+ chan->qu_wordlen[i] = get_bits(gb, 3);
+
+ for (i = pos; i < chan->num_coded_vals; i++)
+ chan->qu_wordlen[i] = (min_val + GET_DELTA(gb, delta_bits)) & 7;
+ }
+ }
+ break;
+ case 2:
+ if ((ret = num_coded_units(gb, chan, ctx, avctx)) < 0)
+ return ret;
+
+ if (ch_num && chan->num_coded_vals) {
+ vlc_tab = &wl_vlc_tabs[get_bits(gb, 2)];
+ delta = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+ chan->qu_wordlen[0] = (ref_chan->qu_wordlen[0] + delta) & 7;
+
+ for (i = 1; i < chan->num_coded_vals; i++) {
+ diff = ref_chan->qu_wordlen[i] - ref_chan->qu_wordlen[i - 1];
+ delta = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+ chan->qu_wordlen[i] = (chan->qu_wordlen[i - 1] + diff + delta) & 7;
+ }
+ } else if (chan->num_coded_vals) {
+ flag = get_bits(gb, 1);
+ vlc_tab = &wl_vlc_tabs[get_bits(gb, 1)];
+
+ start_val = get_bits(gb, 3);
+ unpack_vq_shape(start_val,
+ &atrac3p_wl_shapes[start_val][get_bits(gb, 4)][0],
+ chan->qu_wordlen, chan->num_coded_vals);
+
+ if (!flag) {
+ for (i = 0; i < chan->num_coded_vals; i++) {
+ delta = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+ chan->qu_wordlen[i] = (chan->qu_wordlen[i] + delta) & 7;
+ }
+ } else {
+ for (i = 0; i < (chan->num_coded_vals & - 2); i += 2)
+ if (!get_bits1(gb)) {
+ chan->qu_wordlen[i] = (chan->qu_wordlen[i] +
+ get_vlc2(gb, vlc_tab->table,
+ vlc_tab->bits, 1)) & 7;
+ chan->qu_wordlen[i + 1] = (chan->qu_wordlen[i + 1] +
+ get_vlc2(gb, vlc_tab->table,
+ vlc_tab->bits, 1)) & 7;
+ }
+
+ if (chan->num_coded_vals & 1)
+ chan->qu_wordlen[i] = (chan->qu_wordlen[i] +
+ get_vlc2(gb, vlc_tab->table,
+ vlc_tab->bits, 1)) & 7;
+ }
+ }
+ break;
+ case 3:
+ weight_idx = get_bits(gb, 2);
+ if ((ret = num_coded_units(gb, chan, ctx, avctx)) < 0)
+ return ret;
+
+ if (chan->num_coded_vals) {
+ vlc_tab = &wl_vlc_tabs[get_bits(gb, 2)];
+
+ /* first coefficient is coded directly */
+ chan->qu_wordlen[0] = get_bits(gb, 3);
+
+ for (i = 1; i < chan->num_coded_vals; i++) {
+ delta = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+ chan->qu_wordlen[i] = (chan->qu_wordlen[i - 1] + delta) & 7;
+ }
+ }
+ break;
+ }
+
+ if (chan->fill_mode == 2) {
+ for (i = chan->num_coded_vals; i < ctx->num_quant_units; i++)
+ chan->qu_wordlen[i] = ch_num ? get_bits1(gb) : 1;
+ } else if (chan->fill_mode == 3) {
+ pos = ch_num ? chan->num_coded_vals + chan->split_point
+ : ctx->num_quant_units - chan->split_point;
+ for (i = chan->num_coded_vals; i < pos; i++)
+ chan->qu_wordlen[i] = 1;
+ }
+
+ if (weight_idx)
+ return add_wordlen_weights(ctx, chan, weight_idx, avctx);
+
+ return 0;
+}
+
+/**
+ * Decode scale factor indexes for each quant unit of a channel.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] ch_num channel to process
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_channel_sf_idx(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int ch_num, AVCodecContext *avctx)
+{
+ int i, weight_idx = 0, delta, diff, num_long_vals,
+ delta_bits, min_val, vlc_sel, start_val;
+ VLC *vlc_tab;
+ Atrac3pChanParams *chan = &ctx->channels[ch_num];
+ Atrac3pChanParams *ref_chan = &ctx->channels[0];
+
+ switch (get_bits(gb, 2)) { /* switch according to coding mode */
+ case 0: /* coded using constant number of bits */
+ for (i = 0; i < ctx->used_quant_units; i++)
+ chan->qu_sf_idx[i] = get_bits(gb, 6);
+ break;
+ case 1:
+ if (ch_num) {
+ vlc_tab = &sf_vlc_tabs[get_bits(gb, 2)];
+
+ for (i = 0; i < ctx->used_quant_units; i++) {
+ delta = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+ chan->qu_sf_idx[i] = (ref_chan->qu_sf_idx[i] + delta) & 0x3F;
+ }
+ } else {
+ weight_idx = get_bits(gb, 2);
+ if (weight_idx == 3) {
+ UNPACK_SF_VQ_SHAPE(gb, chan->qu_sf_idx, ctx->used_quant_units);
+
+ num_long_vals = get_bits(gb, 5);
+ delta_bits = get_bits(gb, 2);
+ min_val = get_bits(gb, 4) - 7;
+
+ for (i = 0; i < num_long_vals; i++)
+ chan->qu_sf_idx[i] = (chan->qu_sf_idx[i] +
+ get_bits(gb, 4) - 7) & 0x3F;
+
+ /* all others are: min_val + delta */
+ for (i = num_long_vals; i < ctx->used_quant_units; i++)
+ chan->qu_sf_idx[i] = (chan->qu_sf_idx[i] + min_val +
+ GET_DELTA(gb, delta_bits)) & 0x3F;
+ } else {
+ num_long_vals = get_bits(gb, 5);
+ delta_bits = get_bits(gb, 3);
+ min_val = get_bits(gb, 6);
+ if (num_long_vals > ctx->used_quant_units || delta_bits == 7) {
+ av_log(avctx, AV_LOG_ERROR,
+ "SF mode 1: invalid parameters!\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ /* read full-precision SF indexes */
+ for (i = 0; i < num_long_vals; i++)
+ chan->qu_sf_idx[i] = get_bits(gb, 6);
+
+ /* all others are: min_val + delta */
+ for (i = num_long_vals; i < ctx->used_quant_units; i++)
+ chan->qu_sf_idx[i] = (min_val +
+ GET_DELTA(gb, delta_bits)) & 0x3F;
+ }
+ }
+ break;
+ case 2:
+ if (ch_num) {
+ vlc_tab = &sf_vlc_tabs[get_bits(gb, 2)];
+
+ delta = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+ chan->qu_sf_idx[0] = (ref_chan->qu_sf_idx[0] + delta) & 0x3F;
+
+ for (i = 1; i < ctx->used_quant_units; i++) {
+ diff = ref_chan->qu_sf_idx[i] - ref_chan->qu_sf_idx[i - 1];
+ delta = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+ chan->qu_sf_idx[i] = (chan->qu_sf_idx[i - 1] + diff + delta) & 0x3F;
+ }
+ } else {
+ vlc_tab = &sf_vlc_tabs[get_bits(gb, 2) + 4];
+
+ UNPACK_SF_VQ_SHAPE(gb, chan->qu_sf_idx, ctx->used_quant_units);
+
+ for (i = 0; i < ctx->used_quant_units; i++) {
+ delta = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+ chan->qu_sf_idx[i] = (chan->qu_sf_idx[i] +
+ sign_extend(delta, 4)) & 0x3F;
+ }
+ }
+ break;
+ case 3:
+ if (ch_num) {
+ /* copy coefficients from reference channel */
+ for (i = 0; i < ctx->used_quant_units; i++)
+ chan->qu_sf_idx[i] = ref_chan->qu_sf_idx[i];
+ } else {
+ weight_idx = get_bits(gb, 2);
+ vlc_sel = get_bits(gb, 2);
+ vlc_tab = &sf_vlc_tabs[vlc_sel];
+
+ if (weight_idx == 3) {
+ vlc_tab = &sf_vlc_tabs[vlc_sel + 4];
+
+ UNPACK_SF_VQ_SHAPE(gb, chan->qu_sf_idx, ctx->used_quant_units);
+
+ diff = (get_bits(gb, 4) + 56) & 0x3F;
+ chan->qu_sf_idx[0] = (chan->qu_sf_idx[0] + diff) & 0x3F;
+
+ for (i = 1; i < ctx->used_quant_units; i++) {
+ delta = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+ diff = (diff + sign_extend(delta, 4)) & 0x3F;
+ chan->qu_sf_idx[i] = (diff + chan->qu_sf_idx[i]) & 0x3F;
+ }
+ } else {
+ /* 1st coefficient is coded directly */
+ chan->qu_sf_idx[0] = get_bits(gb, 6);
+
+ for (i = 1; i < ctx->used_quant_units; i++) {
+ delta = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+ chan->qu_sf_idx[i] = (chan->qu_sf_idx[i - 1] + delta) & 0x3F;
+ }
+ }
+ }
+ break;
+ }
+
+ if (weight_idx && weight_idx < 3)
+ return subtract_sf_weights(ctx, chan, weight_idx, avctx);
+
+ return 0;
+}
+
+/**
+ * Decode word length information for each channel.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] num_channels number of channels to process
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_quant_wordlen(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int num_channels, AVCodecContext *avctx)
+{
+ int ch_num, i, ret;
+
+ for (ch_num = 0; ch_num < num_channels; ch_num++) {
+ memset(ctx->channels[ch_num].qu_wordlen, 0,
+ sizeof(ctx->channels[ch_num].qu_wordlen));
+
+ if ((ret = decode_channel_wordlen(gb, ctx, ch_num, avctx)) < 0)
+ return ret;
+ }
+
+ /* scan for last non-zero coeff in both channels and
+ * set number of quant units having coded spectrum */
+ for (i = ctx->num_quant_units - 1; i >= 0; i--)
+ if (ctx->channels[0].qu_wordlen[i] ||
+ (num_channels == 2 && ctx->channels[1].qu_wordlen[i]))
+ break;
+ ctx->used_quant_units = i + 1;
+
+ return 0;
+}
+
+/**
+ * Decode scale factor indexes for each channel.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] num_channels number of channels to process
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_scale_factors(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int num_channels, AVCodecContext *avctx)
+{
+ int ch_num, ret;
+
+ if (!ctx->used_quant_units)
+ return 0;
+
+ for (ch_num = 0; ch_num < num_channels; ch_num++) {
+ memset(ctx->channels[ch_num].qu_sf_idx, 0,
+ sizeof(ctx->channels[ch_num].qu_sf_idx));
+
+ if ((ret = decode_channel_sf_idx(gb, ctx, ch_num, avctx)) < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+/**
+ * Decode number of code table values.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int get_num_ct_values(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ AVCodecContext *avctx)
+{
+ int num_coded_vals;
+
+ if (get_bits1(gb)) {
+ num_coded_vals = get_bits(gb, 5);
+ if (num_coded_vals > ctx->used_quant_units) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Invalid number of code table indexes: %d!\n", num_coded_vals);
+ return AVERROR_INVALIDDATA;
+ }
+ return num_coded_vals;
+ } else
+ return ctx->used_quant_units;
+}
+
+#define DEC_CT_IDX_COMMON(OP) \
+ num_vals = get_num_ct_values(gb, ctx, avctx); \
+ if (num_vals < 0) \
+ return num_vals; \
+ \
+ for (i = 0; i < num_vals; i++) { \
+ if (chan->qu_wordlen[i]) { \
+ chan->qu_tab_idx[i] = OP; \
+ } else if (ch_num && ref_chan->qu_wordlen[i]) \
+ /* get clone master flag */ \
+ chan->qu_tab_idx[i] = get_bits1(gb); \
+ }
+
+#define CODING_DIRECT get_bits(gb, num_bits)
+
+#define CODING_VLC get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1)
+
+#define CODING_VLC_DELTA \
+ (!i) ? CODING_VLC \
+ : (pred + get_vlc2(gb, delta_vlc->table, \
+ delta_vlc->bits, 1)) & mask; \
+ pred = chan->qu_tab_idx[i]
+
+#define CODING_VLC_DIFF \
+ (ref_chan->qu_tab_idx[i] + \
+ get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1)) & mask
+
+/**
+ * Decode code table indexes for each quant unit of a channel.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] ch_num channel to process
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_channel_code_tab(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int ch_num, AVCodecContext *avctx)
+{
+ int i, num_vals, num_bits, pred;
+ int mask = ctx->use_full_table ? 7 : 3; /* mask for modular arithmetic */
+ VLC *vlc_tab, *delta_vlc;
+ Atrac3pChanParams *chan = &ctx->channels[ch_num];
+ Atrac3pChanParams *ref_chan = &ctx->channels[0];
+
+ chan->table_type = get_bits1(gb);
+
+ switch (get_bits(gb, 2)) { /* switch according to coding mode */
+ case 0: /* directly coded */
+ num_bits = ctx->use_full_table + 2;
+ DEC_CT_IDX_COMMON(CODING_DIRECT);
+ break;
+ case 1: /* entropy-coded */
+ vlc_tab = ctx->use_full_table ? &ct_vlc_tabs[1]
+ : ct_vlc_tabs;
+ DEC_CT_IDX_COMMON(CODING_VLC);
+ break;
+ case 2: /* entropy-coded delta */
+ if (ctx->use_full_table) {
+ vlc_tab = &ct_vlc_tabs[1];
+ delta_vlc = &ct_vlc_tabs[2];
+ } else {
+ vlc_tab = ct_vlc_tabs;
+ delta_vlc = ct_vlc_tabs;
+ }
+ pred = 0;
+ DEC_CT_IDX_COMMON(CODING_VLC_DELTA);
+ break;
+ case 3: /* entropy-coded difference to master */
+ if (ch_num) {
+ vlc_tab = ctx->use_full_table ? &ct_vlc_tabs[3]
+ : ct_vlc_tabs;
+ DEC_CT_IDX_COMMON(CODING_VLC_DIFF);
+ }
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * Decode code table indexes for each channel.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] num_channels number of channels to process
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_code_table_indexes(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int num_channels, AVCodecContext *avctx)
+{
+ int ch_num, ret;
+
+ if (!ctx->used_quant_units)
+ return 0;
+
+ ctx->use_full_table = get_bits1(gb);
+
+ for (ch_num = 0; ch_num < num_channels; ch_num++) {
+ memset(ctx->channels[ch_num].qu_tab_idx, 0,
+ sizeof(ctx->channels[ch_num].qu_tab_idx));
+
+ if ((ret = decode_channel_code_tab(gb, ctx, ch_num, avctx)) < 0)
+ return ret;
+ }
+
+ return 0;
+}
+
+/**
+ * Decode huffman-coded spectral lines for a given quant unit.
+ *
+ * This is a generalized version for all known coding modes.
+ * Its speed can be improved by creating separate functions for each mode.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in] tab code table telling how to decode spectral lines
+ * @param[in] vlc_tab ptr to the huffman table associated with the code table
+ * @param[out] out pointer to buffer where decoded data should be stored
+ * @param[in] num_specs number of spectral lines to decode
+ */
+static void decode_qu_spectra(GetBitContext *gb, const Atrac3pSpecCodeTab *tab,
+ VLC *vlc_tab, int16_t *out, const int num_specs)
+{
+ int i, j, pos, cf;
+ int group_size = tab->group_size;
+ int num_coeffs = tab->num_coeffs;
+ int bits = tab->bits;
+ int is_signed = tab->is_signed;
+ unsigned val, mask = (1 << bits) - 1;
+
+ for (pos = 0; pos < num_specs;) {
+ if (group_size == 1 || get_bits1(gb)) {
+ for (j = 0; j < group_size; j++) {
+ val = get_vlc2(gb, vlc_tab->table, vlc_tab->bits, 1);
+
+ for (i = 0; i < num_coeffs; i++) {
+ cf = val & mask;
+ if (is_signed)
+ cf = sign_extend(cf, bits);
+ else if (cf && get_bits1(gb))
+ cf = -cf;
+
+ out[pos++] = cf;
+ val >>= bits;
+ }
+ }
+ } else /* group skipped */
+ pos += group_size * num_coeffs;
+ }
+}
+
+/**
+ * Decode huffman-coded IMDCT spectrum for all channels.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] num_channels number of channels to process
+ * @param[in] avctx ptr to the AVCodecContext
+ */
+static void decode_spectrum(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int num_channels, AVCodecContext *avctx)
+{
+ int i, ch_num, qu, wordlen, codetab, tab_index, num_specs;
+ const Atrac3pSpecCodeTab *tab;
+ Atrac3pChanParams *chan;
+
+ for (ch_num = 0; ch_num < num_channels; ch_num++) {
+ chan = &ctx->channels[ch_num];
+
+ memset(chan->spectrum, 0, sizeof(chan->spectrum));
+
+ /* set power compensation level to disabled */
+ memset(chan->power_levs, ATRAC3P_POWER_COMP_OFF, sizeof(chan->power_levs));
+
+ for (qu = 0; qu < ctx->used_quant_units; qu++) {
+ num_specs = ff_atrac3p_qu_to_spec_pos[qu + 1] -
+ ff_atrac3p_qu_to_spec_pos[qu];
+
+ wordlen = chan->qu_wordlen[qu];
+ codetab = chan->qu_tab_idx[qu];
+ if (wordlen) {
+ if (!ctx->use_full_table)
+ codetab = atrac3p_ct_restricted_to_full[chan->table_type][wordlen - 1][codetab];
+
+ tab_index = (chan->table_type * 8 + codetab) * 7 + wordlen - 1;
+ tab = &atrac3p_spectra_tabs[tab_index];
+
+ /* this allows reusing VLC tables */
+ if (tab->redirect >= 0)
+ tab_index = tab->redirect;
+
+ decode_qu_spectra(gb, tab, &spec_vlc_tabs[tab_index],
+ &chan->spectrum[ff_atrac3p_qu_to_spec_pos[qu]],
+ num_specs);
+ } else if (ch_num && ctx->channels[0].qu_wordlen[qu] && !codetab) {
+ /* copy coefficients from master */
+ memcpy(&chan->spectrum[ff_atrac3p_qu_to_spec_pos[qu]],
+ &ctx->channels[0].spectrum[ff_atrac3p_qu_to_spec_pos[qu]],
+ num_specs *
+ sizeof(chan->spectrum[ff_atrac3p_qu_to_spec_pos[qu]]));
+ chan->qu_wordlen[qu] = ctx->channels[0].qu_wordlen[qu];
+ }
+ }
+
+ /* Power compensation levels only present in the bitstream
+ * if there are more than 2 quant units. The lowest two units
+ * correspond to the frequencies 0...351 Hz, whose shouldn't
+ * be affected by the power compensation. */
+ if (ctx->used_quant_units > 2) {
+ num_specs = atrac3p_subband_to_num_powgrps[ctx->num_coded_subbands - 1];
+ for (i = 0; i < num_specs; i++)
+ chan->power_levs[i] = get_bits(gb, 4);
+ }
+ }
+}
+
+/**
+ * Retrieve specified amount of flag bits from the input bitstream.
+ * The data can be shortened in the case of the following two common conditions:
+ * if all bits are zero then only one signal bit = 0 will be stored,
+ * if all bits are ones then two signal bits = 1,0 will be stored.
+ * Otherwise, all necessary bits will be directly stored
+ * prefixed by two signal bits = 1,1.
+ *
+ * @param[in] gb ptr to the GetBitContext
+ * @param[out] out where to place decoded flags
+ * @param[in] num_flags number of flags to process
+ * @return: 0 = all flag bits are zero, 1 = there is at least one non-zero flag bit
+ */
+static int get_subband_flags(GetBitContext *gb, uint8_t *out, int num_flags)
+{
+ int i, result;
+
+ memset(out, 0, num_flags);
+
+ result = get_bits1(gb);
+ if (result) {
+ if (get_bits1(gb))
+ for (i = 0; i < num_flags; i++)
+ out[i] = get_bits1(gb);
+ else
+ memset(out, 1, num_flags);
+ }
+
+ return result;
+}
+
+/**
+ * Decode mdct window shape flags for all channels.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] num_channels number of channels to process
+ */
+static void decode_window_shape(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int num_channels)
+{
+ int ch_num;
+
+ for (ch_num = 0; ch_num < num_channels; ch_num++)
+ get_subband_flags(gb, ctx->channels[ch_num].wnd_shape,
+ ctx->num_subbands);
+}
+
+/**
+ * Decode number of gain control points.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] ch_num channel to process
+ * @param[in] coded_subbands number of subbands to process
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_gainc_npoints(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int ch_num, int coded_subbands)
+{
+ int i, delta, delta_bits, min_val;
+ Atrac3pChanParams *chan = &ctx->channels[ch_num];
+ Atrac3pChanParams *ref_chan = &ctx->channels[0];
+
+ switch (get_bits(gb, 2)) { /* switch according to coding mode */
+ case 0: /* fixed-length coding */
+ for (i = 0; i < coded_subbands; i++)
+ chan->gain_data[i].num_points = get_bits(gb, 3);
+ break;
+ case 1: /* variable-length coding */
+ for (i = 0; i < coded_subbands; i++)
+ chan->gain_data[i].num_points =
+ get_vlc2(gb, gain_vlc_tabs[0].table,
+ gain_vlc_tabs[0].bits, 1);
+ break;
+ case 2:
+ if (ch_num) { /* VLC modulo delta to master channel */
+ for (i = 0; i < coded_subbands; i++) {
+ delta = get_vlc2(gb, gain_vlc_tabs[1].table,
+ gain_vlc_tabs[1].bits, 1);
+ chan->gain_data[i].num_points =
+ (ref_chan->gain_data[i].num_points + delta) & 7;
+ }
+ } else { /* VLC modulo delta to previous */
+ chan->gain_data[0].num_points =
+ get_vlc2(gb, gain_vlc_tabs[0].table,
+ gain_vlc_tabs[0].bits, 1);
+
+ for (i = 1; i < coded_subbands; i++) {
+ delta = get_vlc2(gb, gain_vlc_tabs[1].table,
+ gain_vlc_tabs[1].bits, 1);
+ chan->gain_data[i].num_points =
+ (chan->gain_data[i - 1].num_points + delta) & 7;
+ }
+ }
+ break;
+ case 3:
+ if (ch_num) { /* copy data from master channel */
+ for (i = 0; i < coded_subbands; i++)
+ chan->gain_data[i].num_points =
+ ref_chan->gain_data[i].num_points;
+ } else { /* shorter delta to min */
+ delta_bits = get_bits(gb, 2);
+ min_val = get_bits(gb, 3);
+
+ for (i = 0; i < coded_subbands; i++) {
+ chan->gain_data[i].num_points = min_val + GET_DELTA(gb, delta_bits);
+ if (chan->gain_data[i].num_points > 7)
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * Implements coding mode 3 (slave) for gain compensation levels.
+ *
+ * @param[out] dst ptr to the output array
+ * @param[in] ref ptr to the reference channel
+ */
+static inline void gainc_level_mode3s(AtracGainInfo *dst, AtracGainInfo *ref)
+{
+ int i;
+
+ for (i = 0; i < dst->num_points; i++)
+ dst->lev_code[i] = (i >= ref->num_points) ? 7 : ref->lev_code[i];
+}
+
+/**
+ * Implements coding mode 1 (master) for gain compensation levels.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in] ctx ptr to the channel unit context
+ * @param[out] dst ptr to the output array
+ */
+static inline void gainc_level_mode1m(GetBitContext *gb,
+ Atrac3pChanUnitCtx *ctx,
+ AtracGainInfo *dst)
+{
+ int i, delta;
+
+ if (dst->num_points > 0)
+ dst->lev_code[0] = get_vlc2(gb, gain_vlc_tabs[2].table,
+ gain_vlc_tabs[2].bits, 1);
+
+ for (i = 1; i < dst->num_points; i++) {
+ delta = get_vlc2(gb, gain_vlc_tabs[3].table,
+ gain_vlc_tabs[3].bits, 1);
+ dst->lev_code[i] = (dst->lev_code[i - 1] + delta) & 0xF;
+ }
+}
+
+/**
+ * Decode level code for each gain control point.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] ch_num channel to process
+ * @param[in] coded_subbands number of subbands to process
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_gainc_levels(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int ch_num, int coded_subbands)
+{
+ int sb, i, delta, delta_bits, min_val, pred;
+ Atrac3pChanParams *chan = &ctx->channels[ch_num];
+ Atrac3pChanParams *ref_chan = &ctx->channels[0];
+
+ switch (get_bits(gb, 2)) { /* switch according to coding mode */
+ case 0: /* fixed-length coding */
+ for (sb = 0; sb < coded_subbands; sb++)
+ for (i = 0; i < chan->gain_data[sb].num_points; i++)
+ chan->gain_data[sb].lev_code[i] = get_bits(gb, 4);
+ break;
+ case 1:
+ if (ch_num) { /* VLC modulo delta to master channel */
+ for (sb = 0; sb < coded_subbands; sb++)
+ for (i = 0; i < chan->gain_data[sb].num_points; i++) {
+ delta = get_vlc2(gb, gain_vlc_tabs[5].table,
+ gain_vlc_tabs[5].bits, 1);
+ pred = (i >= ref_chan->gain_data[sb].num_points)
+ ? 7 : ref_chan->gain_data[sb].lev_code[i];
+ chan->gain_data[sb].lev_code[i] = (pred + delta) & 0xF;
+ }
+ } else { /* VLC modulo delta to previous */
+ for (sb = 0; sb < coded_subbands; sb++)
+ gainc_level_mode1m(gb, ctx, &chan->gain_data[sb]);
+ }
+ break;
+ case 2:
+ if (ch_num) { /* VLC modulo delta to previous or clone master */
+ for (sb = 0; sb < coded_subbands; sb++)
+ if (chan->gain_data[sb].num_points > 0) {
+ if (get_bits1(gb))
+ gainc_level_mode1m(gb, ctx, &chan->gain_data[sb]);
+ else
+ gainc_level_mode3s(&chan->gain_data[sb],
+ &ref_chan->gain_data[sb]);
+ }
+ } else { /* VLC modulo delta to lev_codes of previous subband */
+ if (chan->gain_data[0].num_points > 0)
+ gainc_level_mode1m(gb, ctx, &chan->gain_data[0]);
+
+ for (sb = 1; sb < coded_subbands; sb++)
+ for (i = 0; i < chan->gain_data[sb].num_points; i++) {
+ delta = get_vlc2(gb, gain_vlc_tabs[4].table,
+ gain_vlc_tabs[4].bits, 1);
+ pred = (i >= chan->gain_data[sb - 1].num_points)
+ ? 7 : chan->gain_data[sb - 1].lev_code[i];
+ chan->gain_data[sb].lev_code[i] = (pred + delta) & 0xF;
+ }
+ }
+ break;
+ case 3:
+ if (ch_num) { /* clone master */
+ for (sb = 0; sb < coded_subbands; sb++)
+ gainc_level_mode3s(&chan->gain_data[sb],
+ &ref_chan->gain_data[sb]);
+ } else { /* shorter delta to min */
+ delta_bits = get_bits(gb, 2);
+ min_val = get_bits(gb, 4);
+
+ for (sb = 0; sb < coded_subbands; sb++)
+ for (i = 0; i < chan->gain_data[sb].num_points; i++) {
+ chan->gain_data[sb].lev_code[i] = min_val + GET_DELTA(gb, delta_bits);
+ if (chan->gain_data[sb].lev_code[i] > 15)
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ break;
+ }
+
+ return 0;
+}
+
+/**
+ * Implements coding mode 0 for gain compensation locations.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in] ctx ptr to the channel unit context
+ * @param[out] dst ptr to the output array
+ * @param[in] pos position of the value to be processed
+ */
+static inline void gainc_loc_mode0(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ AtracGainInfo *dst, int pos)
+{
+ int delta_bits;
+
+ if (!pos || dst->loc_code[pos - 1] < 15)
+ dst->loc_code[pos] = get_bits(gb, 5);
+ else if (dst->loc_code[pos - 1] >= 30)
+ dst->loc_code[pos] = 31;
+ else {
+ delta_bits = av_log2(30 - dst->loc_code[pos - 1]) + 1;
+ dst->loc_code[pos] = dst->loc_code[pos - 1] +
+ get_bits(gb, delta_bits) + 1;
+ }
+}
+
+/**
+ * Implements coding mode 1 for gain compensation locations.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in] ctx ptr to the channel unit context
+ * @param[out] dst ptr to the output array
+ */
+static inline void gainc_loc_mode1(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ AtracGainInfo *dst)
+{
+ int i;
+ VLC *tab;
+
+ if (dst->num_points > 0) {
+ /* 1st coefficient is stored directly */
+ dst->loc_code[0] = get_bits(gb, 5);
+
+ for (i = 1; i < dst->num_points; i++) {
+ /* switch VLC according to the curve direction
+ * (ascending/descending) */
+ tab = (dst->lev_code[i] <= dst->lev_code[i - 1])
+ ? &gain_vlc_tabs[7]
+ : &gain_vlc_tabs[9];
+ dst->loc_code[i] = dst->loc_code[i - 1] +
+ get_vlc2(gb, tab->table, tab->bits, 1);
+ }
+ }
+}
+
+/**
+ * Decode location code for each gain control point.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] ch_num channel to process
+ * @param[in] coded_subbands number of subbands to process
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_gainc_loc_codes(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int ch_num, int coded_subbands,
+ AVCodecContext *avctx)
+{
+ int sb, i, delta, delta_bits, min_val, pred, more_than_ref;
+ AtracGainInfo *dst, *ref;
+ VLC *tab;
+ Atrac3pChanParams *chan = &ctx->channels[ch_num];
+ Atrac3pChanParams *ref_chan = &ctx->channels[0];
+
+ switch (get_bits(gb, 2)) { /* switch according to coding mode */
+ case 0: /* sequence of numbers in ascending order */
+ for (sb = 0; sb < coded_subbands; sb++)
+ for (i = 0; i < chan->gain_data[sb].num_points; i++)
+ gainc_loc_mode0(gb, ctx, &chan->gain_data[sb], i);
+ break;
+ case 1:
+ if (ch_num) {
+ for (sb = 0; sb < coded_subbands; sb++) {
+ if (chan->gain_data[sb].num_points <= 0)
+ continue;
+ dst = &chan->gain_data[sb];
+ ref = &ref_chan->gain_data[sb];
+
+ /* 1st value is vlc-coded modulo delta to master */
+ delta = get_vlc2(gb, gain_vlc_tabs[10].table,
+ gain_vlc_tabs[10].bits, 1);
+ pred = ref->num_points > 0 ? ref->loc_code[0] : 0;
+ dst->loc_code[0] = (pred + delta) & 0x1F;
+
+ for (i = 1; i < dst->num_points; i++) {
+ more_than_ref = i >= ref->num_points;
+ if (dst->lev_code[i] > dst->lev_code[i - 1]) {
+ /* ascending curve */
+ if (more_than_ref) {
+ delta =
+ get_vlc2(gb, gain_vlc_tabs[9].table,
+ gain_vlc_tabs[9].bits, 1);
+ dst->loc_code[i] = dst->loc_code[i - 1] + delta;
+ } else {
+ if (get_bits1(gb))
+ gainc_loc_mode0(gb, ctx, dst, i); // direct coding
+ else
+ dst->loc_code[i] = ref->loc_code[i]; // clone master
+ }
+ } else { /* descending curve */
+ tab = more_than_ref ? &gain_vlc_tabs[7]
+ : &gain_vlc_tabs[10];
+ delta = get_vlc2(gb, tab->table, tab->bits, 1);
+ if (more_than_ref)
+ dst->loc_code[i] = dst->loc_code[i - 1] + delta;
+ else
+ dst->loc_code[i] = (ref->loc_code[i] + delta) & 0x1F;
+ }
+ }
+ }
+ } else /* VLC delta to previous */
+ for (sb = 0; sb < coded_subbands; sb++)
+ gainc_loc_mode1(gb, ctx, &chan->gain_data[sb]);
+ break;
+ case 2:
+ if (ch_num) {
+ for (sb = 0; sb < coded_subbands; sb++) {
+ if (chan->gain_data[sb].num_points <= 0)
+ continue;
+ dst = &chan->gain_data[sb];
+ ref = &ref_chan->gain_data[sb];
+ if (dst->num_points > ref->num_points || get_bits1(gb))
+ gainc_loc_mode1(gb, ctx, dst);
+ else /* clone master for the whole subband */
+ for (i = 0; i < chan->gain_data[sb].num_points; i++)
+ dst->loc_code[i] = ref->loc_code[i];
+ }
+ } else {
+ /* data for the first subband is coded directly */
+ for (i = 0; i < chan->gain_data[0].num_points; i++)
+ gainc_loc_mode0(gb, ctx, &chan->gain_data[0], i);
+
+ for (sb = 1; sb < coded_subbands; sb++) {
+ if (chan->gain_data[sb].num_points <= 0)
+ continue;
+ dst = &chan->gain_data[sb];
+
+ /* 1st value is vlc-coded modulo delta to the corresponding
+ * value of the previous subband if any or zero */
+ delta = get_vlc2(gb, gain_vlc_tabs[6].table,
+ gain_vlc_tabs[6].bits, 1);
+ pred = dst[-1].num_points > 0
+ ? dst[-1].loc_code[0] : 0;
+ dst->loc_code[0] = (pred + delta) & 0x1F;
+
+ for (i = 1; i < dst->num_points; i++) {
+ more_than_ref = i >= dst[-1].num_points;
+ /* Select VLC table according to curve direction and
+ * presence of prediction. */
+ tab = &gain_vlc_tabs[(dst->lev_code[i] > dst->lev_code[i - 1]) *
+ 2 + more_than_ref + 6];
+ delta = get_vlc2(gb, tab->table, tab->bits, 1);
+ if (more_than_ref)
+ dst->loc_code[i] = dst->loc_code[i - 1] + delta;
+ else
+ dst->loc_code[i] = (dst[-1].loc_code[i] + delta) & 0x1F;
+ }
+ }
+ }
+ break;
+ case 3:
+ if (ch_num) { /* clone master or direct or direct coding */
+ for (sb = 0; sb < coded_subbands; sb++)
+ for (i = 0; i < chan->gain_data[sb].num_points; i++) {
+ if (i >= ref_chan->gain_data[sb].num_points)
+ gainc_loc_mode0(gb, ctx, &chan->gain_data[sb], i);
+ else
+ chan->gain_data[sb].loc_code[i] =
+ ref_chan->gain_data[sb].loc_code[i];
+ }
+ } else { /* shorter delta to min */
+ delta_bits = get_bits(gb, 2) + 1;
+ min_val = get_bits(gb, 5);
+
+ for (sb = 0; sb < coded_subbands; sb++)
+ for (i = 0; i < chan->gain_data[sb].num_points; i++)
+ chan->gain_data[sb].loc_code[i] = min_val + i +
+ get_bits(gb, delta_bits);
+ }
+ break;
+ }
+
+ /* Validate decoded information */
+ for (sb = 0; sb < coded_subbands; sb++) {
+ dst = &chan->gain_data[sb];
+ for (i = 0; i < chan->gain_data[sb].num_points; i++) {
+ if (dst->loc_code[i] < 0 || dst->loc_code[i] > 31 ||
+ (i && dst->loc_code[i] <= dst->loc_code[i - 1])) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Invalid gain location: ch=%d, sb=%d, pos=%d, val=%d\n",
+ ch_num, sb, i, dst->loc_code[i]);
+ return AVERROR_INVALIDDATA;
+ }
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * Decode gain control data for all channels.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] num_channels number of channels to process
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_gainc_data(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int num_channels, AVCodecContext *avctx)
+{
+ int ch_num, coded_subbands, sb, ret;
+
+ for (ch_num = 0; ch_num < num_channels; ch_num++) {
+ memset(ctx->channels[ch_num].gain_data, 0,
+ sizeof(*ctx->channels[ch_num].gain_data) * ATRAC3P_SUBBANDS);
+
+ if (get_bits1(gb)) { /* gain control data present? */
+ coded_subbands = get_bits(gb, 4) + 1;
+ if (get_bits1(gb)) /* is high band gain data replication on? */
+ ctx->channels[ch_num].num_gain_subbands = get_bits(gb, 4) + 1;
+ else
+ ctx->channels[ch_num].num_gain_subbands = coded_subbands;
+
+ if ((ret = decode_gainc_npoints(gb, ctx, ch_num, coded_subbands)) < 0 ||
+ (ret = decode_gainc_levels(gb, ctx, ch_num, coded_subbands)) < 0 ||
+ (ret = decode_gainc_loc_codes(gb, ctx, ch_num, coded_subbands, avctx)) < 0)
+ return ret;
+
+ if (coded_subbands > 0) { /* propagate gain data if requested */
+ for (sb = coded_subbands; sb < ctx->channels[ch_num].num_gain_subbands; sb++)
+ ctx->channels[ch_num].gain_data[sb] =
+ ctx->channels[ch_num].gain_data[sb - 1];
+ }
+ } else {
+ ctx->channels[ch_num].num_gain_subbands = 0;
+ }
+ }
+
+ return 0;
+}
+
+/**
+ * Decode envelope for all tones of a channel.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] ch_num channel to process
+ * @param[in] band_has_tones ptr to an array of per-band-flags:
+ * 1 - tone data present
+ */
+static void decode_tones_envelope(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int ch_num, int band_has_tones[])
+{
+ int sb;
+ Atrac3pWavesData *dst = ctx->channels[ch_num].tones_info;
+ Atrac3pWavesData *ref = ctx->channels[0].tones_info;
+
+ if (!ch_num || !get_bits1(gb)) { /* mode 0: fixed-length coding */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {
+ if (!band_has_tones[sb])
+ continue;
+ dst[sb].pend_env.has_start_point = get_bits1(gb);
+ dst[sb].pend_env.start_pos = dst[sb].pend_env.has_start_point
+ ? get_bits(gb, 5) : -1;
+ dst[sb].pend_env.has_stop_point = get_bits1(gb);
+ dst[sb].pend_env.stop_pos = dst[sb].pend_env.has_stop_point
+ ? get_bits(gb, 5) : 32;
+ }
+ } else { /* mode 1(slave only): copy master */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {
+ if (!band_has_tones[sb])
+ continue;
+ dst[sb].pend_env.has_start_point = ref[sb].pend_env.has_start_point;
+ dst[sb].pend_env.has_stop_point = ref[sb].pend_env.has_stop_point;
+ dst[sb].pend_env.start_pos = ref[sb].pend_env.start_pos;
+ dst[sb].pend_env.stop_pos = ref[sb].pend_env.stop_pos;
+ }
+ }
+}
+
+/**
+ * Decode number of tones for each subband of a channel.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] ch_num channel to process
+ * @param[in] band_has_tones ptr to an array of per-band-flags:
+ * 1 - tone data present
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_band_numwavs(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int ch_num, int band_has_tones[],
+ AVCodecContext *avctx)
+{
+ int mode, sb, delta;
+ Atrac3pWavesData *dst = ctx->channels[ch_num].tones_info;
+ Atrac3pWavesData *ref = ctx->channels[0].tones_info;
+
+ mode = get_bits(gb, ch_num + 1);
+ switch (mode) {
+ case 0: /** fixed-length coding */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++)
+ if (band_has_tones[sb])
+ dst[sb].num_wavs = get_bits(gb, 4);
+ break;
+ case 1: /** variable-length coding */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++)
+ if (band_has_tones[sb])
+ dst[sb].num_wavs =
+ get_vlc2(gb, tone_vlc_tabs[1].table,
+ tone_vlc_tabs[1].bits, 1);
+ break;
+ case 2: /** VLC modulo delta to master (slave only) */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++)
+ if (band_has_tones[sb]) {
+ delta = get_vlc2(gb, tone_vlc_tabs[2].table,
+ tone_vlc_tabs[2].bits, 1);
+ delta = sign_extend(delta, 3);
+ dst[sb].num_wavs = (ref[sb].num_wavs + delta) & 0xF;
+ }
+ break;
+ case 3: /** copy master (slave only) */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++)
+ if (band_has_tones[sb])
+ dst[sb].num_wavs = ref[sb].num_wavs;
+ break;
+ }
+
+ /** initialize start tone index for each subband */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++)
+ if (band_has_tones[sb]) {
+ if (ctx->waves_info->tones_index + dst[sb].num_wavs > 48) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Too many tones: %d (max. 48), frame: %d!\n",
+ ctx->waves_info->tones_index + dst[sb].num_wavs,
+ avctx->frame_number);
+ return AVERROR_INVALIDDATA;
+ }
+ dst[sb].start_index = ctx->waves_info->tones_index;
+ ctx->waves_info->tones_index += dst[sb].num_wavs;
+ }
+
+ return 0;
+}
+
+/**
+ * Decode frequency information for each subband of a channel.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] ch_num channel to process
+ * @param[in] band_has_tones ptr to an array of per-band-flags:
+ * 1 - tone data present
+ */
+static void decode_tones_frequency(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int ch_num, int band_has_tones[])
+{
+ int sb, i, direction, nbits, pred, delta;
+ Atrac3pWaveParam *iwav, *owav;
+ Atrac3pWavesData *dst = ctx->channels[ch_num].tones_info;
+ Atrac3pWavesData *ref = ctx->channels[0].tones_info;
+
+ if (!ch_num || !get_bits1(gb)) { /* mode 0: fixed-length coding */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {
+ if (!band_has_tones[sb] || !dst[sb].num_wavs)
+ continue;
+ iwav = &ctx->waves_info->waves[dst[sb].start_index];
+ direction = (dst[sb].num_wavs > 1) ? get_bits1(gb) : 0;
+ if (direction) { /** packed numbers in descending order */
+ if (dst[sb].num_wavs)
+ iwav[dst[sb].num_wavs - 1].freq_index = get_bits(gb, 10);
+ for (i = dst[sb].num_wavs - 2; i >= 0 ; i--) {
+ nbits = av_log2(iwav[i+1].freq_index) + 1;
+ iwav[i].freq_index = get_bits(gb, nbits);
+ }
+ } else { /** packed numbers in ascending order */
+ for (i = 0; i < dst[sb].num_wavs; i++) {
+ if (!i || iwav[i - 1].freq_index < 512)
+ iwav[i].freq_index = get_bits(gb, 10);
+ else {
+ nbits = av_log2(1023 - iwav[i - 1].freq_index) + 1;
+ iwav[i].freq_index = get_bits(gb, nbits) +
+ 1024 - (1 << nbits);
+ }
+ }
+ }
+ }
+ } else { /* mode 1: VLC modulo delta to master (slave only) */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {
+ if (!band_has_tones[sb] || !dst[sb].num_wavs)
+ continue;
+ iwav = &ctx->waves_info->waves[ref[sb].start_index];
+ owav = &ctx->waves_info->waves[dst[sb].start_index];
+ for (i = 0; i < dst[sb].num_wavs; i++) {
+ delta = get_vlc2(gb, tone_vlc_tabs[6].table,
+ tone_vlc_tabs[6].bits, 1);
+ delta = sign_extend(delta, 8);
+ pred = (i < ref[sb].num_wavs) ? iwav[i].freq_index :
+ (ref[sb].num_wavs ? iwav[ref[sb].num_wavs - 1].freq_index : 0);
+ owav[i].freq_index = (pred + delta) & 0x3FF;
+ }
+ }
+ }
+}
+
+/**
+ * Decode amplitude information for each subband of a channel.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] ch_num channel to process
+ * @param[in] band_has_tones ptr to an array of per-band-flags:
+ * 1 - tone data present
+ */
+static void decode_tones_amplitude(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int ch_num, int band_has_tones[])
+{
+ int mode, sb, j, i, diff, maxdiff, fi, delta, pred;
+ Atrac3pWaveParam *wsrc, *wref;
+ int refwaves[48];
+ Atrac3pWavesData *dst = ctx->channels[ch_num].tones_info;
+ Atrac3pWavesData *ref = ctx->channels[0].tones_info;
+
+ if (ch_num) {
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {
+ if (!band_has_tones[sb] || !dst[sb].num_wavs)
+ continue;
+ wsrc = &ctx->waves_info->waves[dst[sb].start_index];
+ wref = &ctx->waves_info->waves[ref[sb].start_index];
+ for (j = 0; j < dst[sb].num_wavs; j++) {
+ for (i = 0, fi = 0, maxdiff = 1024; i < ref[sb].num_wavs; i++) {
+ diff = FFABS(wsrc[j].freq_index - wref[i].freq_index);
+ if (diff < maxdiff) {
+ maxdiff = diff;
+ fi = i;
+ }
+ }
+
+ if (maxdiff < 8)
+ refwaves[dst[sb].start_index + j] = fi + ref[sb].start_index;
+ else if (j < ref[sb].num_wavs)
+ refwaves[dst[sb].start_index + j] = j + ref[sb].start_index;
+ else
+ refwaves[dst[sb].start_index + j] = -1;
+ }
+ }
+ }
+
+ mode = get_bits(gb, ch_num + 1);
+
+ switch (mode) {
+ case 0: /** fixed-length coding */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {
+ if (!band_has_tones[sb] || !dst[sb].num_wavs)
+ continue;
+ if (ctx->waves_info->amplitude_mode)
+ for (i = 0; i < dst[sb].num_wavs; i++)
+ ctx->waves_info->waves[dst[sb].start_index + i].amp_sf = get_bits(gb, 6);
+ else
+ ctx->waves_info->waves[dst[sb].start_index].amp_sf = get_bits(gb, 6);
+ }
+ break;
+ case 1: /** min + VLC delta */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {
+ if (!band_has_tones[sb] || !dst[sb].num_wavs)
+ continue;
+ if (ctx->waves_info->amplitude_mode)
+ for (i = 0; i < dst[sb].num_wavs; i++)
+ ctx->waves_info->waves[dst[sb].start_index + i].amp_sf =
+ get_vlc2(gb, tone_vlc_tabs[3].table,
+ tone_vlc_tabs[3].bits, 1) + 20;
+ else
+ ctx->waves_info->waves[dst[sb].start_index].amp_sf =
+ get_vlc2(gb, tone_vlc_tabs[4].table,
+ tone_vlc_tabs[4].bits, 1) + 24;
+ }
+ break;
+ case 2: /** VLC modulo delta to master (slave only) */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {
+ if (!band_has_tones[sb] || !dst[sb].num_wavs)
+ continue;
+ for (i = 0; i < dst[sb].num_wavs; i++) {
+ delta = get_vlc2(gb, tone_vlc_tabs[5].table,
+ tone_vlc_tabs[5].bits, 1);
+ delta = sign_extend(delta, 5);
+ pred = refwaves[dst[sb].start_index + i] >= 0 ?
+ ctx->waves_info->waves[refwaves[dst[sb].start_index + i]].amp_sf : 34;
+ ctx->waves_info->waves[dst[sb].start_index + i].amp_sf = (pred + delta) & 0x3F;
+ }
+ }
+ break;
+ case 3: /** clone master (slave only) */
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {
+ if (!band_has_tones[sb])
+ continue;
+ for (i = 0; i < dst[sb].num_wavs; i++)
+ ctx->waves_info->waves[dst[sb].start_index + i].amp_sf =
+ refwaves[dst[sb].start_index + i] >= 0
+ ? ctx->waves_info->waves[refwaves[dst[sb].start_index + i]].amp_sf
+ : 32;
+ }
+ break;
+ }
+}
+
+/**
+ * Decode phase information for each subband of a channel.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] ch_num channel to process
+ * @param[in] band_has_tones ptr to an array of per-band-flags:
+ * 1 - tone data present
+ */
+static void decode_tones_phase(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int ch_num, int band_has_tones[])
+{
+ int sb, i;
+ Atrac3pWaveParam *wparam;
+ Atrac3pWavesData *dst = ctx->channels[ch_num].tones_info;
+
+ for (sb = 0; sb < ctx->waves_info->num_tone_bands; sb++) {
+ if (!band_has_tones[sb])
+ continue;
+ wparam = &ctx->waves_info->waves[dst[sb].start_index];
+ for (i = 0; i < dst[sb].num_wavs; i++)
+ wparam[i].phase_index = get_bits(gb, 5);
+ }
+}
+
+/**
+ * Decode tones info for all channels.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] num_channels number of channels to process
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+static int decode_tones_info(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int num_channels, AVCodecContext *avctx)
+{
+ int ch_num, i, ret;
+ int band_has_tones[16];
+
+ ctx->waves_info->tones_present = get_bits1(gb);
+ if (!ctx->waves_info->tones_present)
+ return 0;
+
+ memset(ctx->waves_info->waves, 0, sizeof(ctx->waves_info->waves));
+
+ ctx->waves_info->amplitude_mode = get_bits1(gb);
+ if (!ctx->waves_info->amplitude_mode) {
+ avpriv_report_missing_feature(avctx, "GHA amplitude mode 0");
+ return AVERROR_PATCHWELCOME;
+ }
+
+ ctx->waves_info->num_tone_bands =
+ get_vlc2(gb, tone_vlc_tabs[0].table,
+ tone_vlc_tabs[0].bits, 1) + 1;
+
+ if (num_channels == 2) {
+ get_subband_flags(gb, ctx->waves_info->tone_sharing, ctx->waves_info->num_tone_bands);
+ get_subband_flags(gb, ctx->waves_info->tone_master, ctx->waves_info->num_tone_bands);
+ if (get_subband_flags(gb, ctx->waves_info->phase_shift,
+ ctx->waves_info->num_tone_bands)) {
+ avpriv_report_missing_feature(avctx, "GHA Phase shifting");
+ return AVERROR_PATCHWELCOME;
+ }
+ }
+
+ ctx->waves_info->tones_index = 0;
+
+ for (ch_num = 0; ch_num < num_channels; ch_num++) {
+ for (i = 0; i < ctx->waves_info->num_tone_bands; i++)
+ band_has_tones[i] = !ch_num ? 1 : !ctx->waves_info->tone_sharing[i];
+
+ decode_tones_envelope(gb, ctx, ch_num, band_has_tones);
+ if ((ret = decode_band_numwavs(gb, ctx, ch_num, band_has_tones,
+ avctx)) < 0)
+ return ret;
+
+ decode_tones_frequency(gb, ctx, ch_num, band_has_tones);
+ decode_tones_amplitude(gb, ctx, ch_num, band_has_tones);
+ decode_tones_phase(gb, ctx, ch_num, band_has_tones);
+ }
+
+ if (num_channels == 2) {
+ for (i = 0; i < ctx->waves_info->num_tone_bands; i++) {
+ if (ctx->waves_info->tone_sharing[i])
+ ctx->channels[1].tones_info[i] = ctx->channels[0].tones_info[i];
+
+ if (ctx->waves_info->tone_master[i])
+ FFSWAP(Atrac3pWavesData, ctx->channels[0].tones_info[i],
+ ctx->channels[1].tones_info[i]);
+ }
+ }
+
+ return 0;
+}
+
+int ff_atrac3p_decode_channel_unit(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int num_channels, AVCodecContext *avctx)
+{
+ int ret;
+
+ /* parse sound header */
+ ctx->num_quant_units = get_bits(gb, 5) + 1;
+ if (ctx->num_quant_units > 28 && ctx->num_quant_units < 32) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Invalid number of quantization units: %d!\n",
+ ctx->num_quant_units);
+ return AVERROR_INVALIDDATA;
+ }
+
+ ctx->mute_flag = get_bits1(gb);
+
+ /* decode various sound parameters */
+ if ((ret = decode_quant_wordlen(gb, ctx, num_channels, avctx)) < 0)
+ return ret;
+
+ ctx->num_subbands = atrac3p_qu_to_subband[ctx->num_quant_units - 1] + 1;
+ ctx->num_coded_subbands = ctx->used_quant_units
+ ? atrac3p_qu_to_subband[ctx->used_quant_units - 1] + 1
+ : 0;
+
+ if ((ret = decode_scale_factors(gb, ctx, num_channels, avctx)) < 0)
+ return ret;
+
+ if ((ret = decode_code_table_indexes(gb, ctx, num_channels, avctx)) < 0)
+ return ret;
+
+ decode_spectrum(gb, ctx, num_channels, avctx);
+
+ if (num_channels == 2) {
+ get_subband_flags(gb, ctx->swap_channels, ctx->num_coded_subbands);
+ get_subband_flags(gb, ctx->negate_coeffs, ctx->num_coded_subbands);
+ }
+
+ decode_window_shape(gb, ctx, num_channels);
+
+ if ((ret = decode_gainc_data(gb, ctx, num_channels, avctx)) < 0)
+ return ret;
+
+ if ((ret = decode_tones_info(gb, ctx, num_channels, avctx)) < 0)
+ return ret;
+
+ /* decode global noise info */
+ ctx->noise_present = get_bits1(gb);
+ if (ctx->noise_present) {
+ ctx->noise_level_index = get_bits(gb, 4);
+ ctx->noise_table_index = get_bits(gb, 4);
+ }
+
+ return 0;
+}
diff --git a/libavcodec/atrac3plus.h b/libavcodec/atrac3plus.h
new file mode 100644
index 0000000000..9171e6e411
--- /dev/null
+++ b/libavcodec/atrac3plus.h
@@ -0,0 +1,240 @@
+/*
+ * ATRAC3+ compatible decoder
+ *
+ * Copyright (c) 2010-2013 Maxim Poliakovski
+ *
+ * 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
+ * Global structures, constants and data for ATRAC3+ decoder.
+ */
+
+#ifndef AVCODEC_ATRAC3PLUS_H
+#define AVCODEC_ATRAC3PLUS_H
+
+#include <stdint.h>
+
+#include "libavutil/float_dsp.h"
+#include "atrac.h"
+#include "avcodec.h"
+#include "fft.h"
+#include "get_bits.h"
+
+/** Global unit sizes */
+#define ATRAC3P_SUBBANDS 16 ///< number of PQF subbands
+#define ATRAC3P_SUBBAND_SAMPLES 128 ///< number of samples per subband
+#define ATRAC3P_FRAME_SAMPLES (ATRAC3P_SUBBAND_SAMPLES * ATRAC3P_SUBBANDS)
+
+#define ATRAC3P_PQF_FIR_LEN 12 ///< length of the prototype FIR of the PQF
+
+/** Global constants */
+#define ATRAC3P_POWER_COMP_OFF 15 ///< disable power compensation
+
+/** ATRAC3+ channel unit types */
+enum Atrac3pChannelUnitTypes {
+ CH_UNIT_MONO = 0, ///< unit containing one coded channel
+ CH_UNIT_STEREO = 1, ///< unit containing two jointly-coded channels
+ CH_UNIT_EXTENSION = 2, ///< unit containing extension information
+ CH_UNIT_TERMINATOR = 3 ///< unit sequence terminator
+};
+
+/** Per-channel IPQF history */
+typedef struct Atrac3pIPQFChannelCtx {
+ DECLARE_ALIGNED(32, float, buf1)[ATRAC3P_PQF_FIR_LEN * 2][8];
+ DECLARE_ALIGNED(32, float, buf2)[ATRAC3P_PQF_FIR_LEN * 2][8];
+ int pos;
+} Atrac3pIPQFChannelCtx;
+
+/** Amplitude envelope of a group of sine waves */
+typedef struct Atrac3pWaveEnvelope {
+ int has_start_point; ///< indicates start point within the GHA window
+ int has_stop_point; ///< indicates stop point within the GHA window
+ int start_pos; ///< start position expressed in n*4 samples
+ int stop_pos; ///< stop position expressed in n*4 samples
+} Atrac3pWaveEnvelope;
+
+/** Parameters of a group of sine waves */
+typedef struct Atrac3pWavesData {
+ Atrac3pWaveEnvelope pend_env; ///< pending envelope from the previous frame
+ Atrac3pWaveEnvelope curr_env; ///< group envelope from the current frame
+ int num_wavs; ///< number of sine waves in the group
+ int start_index; ///< start index into global tones table for that subband
+} Atrac3pWavesData;
+
+/** Parameters of a single sine wave */
+typedef struct Atrac3pWaveParam {
+ int freq_index; ///< wave frequency index
+ int amp_sf; ///< quantized amplitude scale factor
+ int amp_index; ///< quantized amplitude index
+ int phase_index; ///< quantized phase index
+} Atrac3pWaveParam;
+
+/** Sound channel parameters */
+typedef struct Atrac3pChanParams {
+ int ch_num;
+ int num_coded_vals; ///< number of transmitted quant unit values
+ int fill_mode;
+ int split_point;
+ int table_type; ///< table type: 0 - tone?, 1- noise?
+ int qu_wordlen[32]; ///< array of word lengths for each quant unit
+ int qu_sf_idx[32]; ///< array of scale factor indexes for each quant unit
+ int qu_tab_idx[32]; ///< array of code table indexes for each quant unit
+ int16_t spectrum[2048]; ///< decoded IMDCT spectrum
+ uint8_t power_levs[5]; ///< power compensation levels
+
+ /* imdct window shape history (2 frames) for overlapping. */
+ uint8_t wnd_shape_hist[2][ATRAC3P_SUBBANDS]; ///< IMDCT window shape, 0=sine/1=steep
+ uint8_t *wnd_shape; ///< IMDCT window shape for current frame
+ uint8_t *wnd_shape_prev; ///< IMDCT window shape for previous frame
+
+ /* gain control data history (2 frames) for overlapping. */
+ AtracGainInfo gain_data_hist[2][ATRAC3P_SUBBANDS]; ///< gain control data for all subbands
+ AtracGainInfo *gain_data; ///< gain control data for next frame
+ AtracGainInfo *gain_data_prev; ///< gain control data for previous frame
+ int num_gain_subbands; ///< number of subbands with gain control data
+
+ /* tones data history (2 frames) for overlapping. */
+ Atrac3pWavesData tones_info_hist[2][ATRAC3P_SUBBANDS];
+ Atrac3pWavesData *tones_info;
+ Atrac3pWavesData *tones_info_prev;
+} Atrac3pChanParams;
+
+/* Per-unit sine wave parameters */
+typedef struct Atrac3pWaveSynthParams {
+ int tones_present; ///< 1 - tones info present
+ int amplitude_mode; ///< 1 - low range, 0 - high range
+ int num_tone_bands; ///< number of PQF bands with tones
+ uint8_t tone_sharing[ATRAC3P_SUBBANDS]; ///< 1 - subband-wise tone sharing flags
+ uint8_t tone_master[ATRAC3P_SUBBANDS]; ///< 1 - subband-wise tone channel swapping
+ uint8_t phase_shift[ATRAC3P_SUBBANDS]; ///< 1 - subband-wise 180° phase shifting
+ int tones_index; ///< total sum of tones in this unit
+ Atrac3pWaveParam waves[48];
+} Atrac3pWaveSynthParams;
+
+/** Channel unit parameters */
+typedef struct Atrac3pChanUnitCtx {
+ /* channel unit variables */
+ int unit_type; ///< unit type (mono/stereo)
+ int num_quant_units;
+ int num_subbands;
+ int used_quant_units; ///< number of quant units with coded spectrum
+ int num_coded_subbands; ///< number of subbands with coded spectrum
+ int mute_flag; ///< mute flag
+ int use_full_table; ///< 1 - full table list, 0 - restricted one
+ int noise_present; ///< 1 - global noise info present
+ int noise_level_index; ///< global noise level index
+ int noise_table_index; ///< global noise RNG table index
+ uint8_t swap_channels[ATRAC3P_SUBBANDS]; ///< 1 - perform subband-wise channel swapping
+ uint8_t negate_coeffs[ATRAC3P_SUBBANDS]; ///< 1 - subband-wise IMDCT coefficients negation
+ Atrac3pChanParams channels[2];
+
+ /* Variables related to GHA tones */
+ Atrac3pWaveSynthParams wave_synth_hist[2]; ///< waves synth history for two frames
+ Atrac3pWaveSynthParams *waves_info;
+ Atrac3pWaveSynthParams *waves_info_prev;
+
+ Atrac3pIPQFChannelCtx ipqf_ctx[2];
+ DECLARE_ALIGNED(32, float, prev_buf)[2][ATRAC3P_FRAME_SAMPLES]; ///< overlapping buffer
+} Atrac3pChanUnitCtx;
+
+/**
+ * Initialize VLC tables for bitstream parsing.
+ */
+void ff_atrac3p_init_vlcs(void);
+
+/**
+ * Decode bitstream data of a channel unit.
+ *
+ * @param[in] gb the GetBit context
+ * @param[in,out] ctx ptr to the channel unit context
+ * @param[in] num_channels number of channels to process
+ * @param[in] avctx ptr to the AVCodecContext
+ * @return result code: 0 = OK, otherwise - error code
+ */
+int ff_atrac3p_decode_channel_unit(GetBitContext *gb, Atrac3pChanUnitCtx *ctx,
+ int num_channels, AVCodecContext *avctx);
+
+/**
+ * Initialize IMDCT transform.
+ *
+ * @param[in] avctx ptr to the AVCodecContext
+ * @param[in] mdct_ctx pointer to MDCT transform context
+ */
+void ff_atrac3p_init_imdct(AVCodecContext *avctx, FFTContext *mdct_ctx);
+
+/**
+ * Initialize sine waves synthesizer.
+ */
+void ff_atrac3p_init_wave_synth(void);
+
+/**
+ * Synthesize sine waves for a particular subband.
+ *
+ * @param[in] ch_unit pointer to the channel unit context
+ * @param[in] fdsp pointer to float DSP context
+ * @param[in] ch_num which channel to process
+ * @param[in] sb which subband to process
+ * @param[out] out receives processed data
+ */
+void ff_atrac3p_generate_tones(Atrac3pChanUnitCtx *ch_unit, AVFloatDSPContext *fdsp,
+ int ch_num, int sb, float *out);
+
+/**
+ * Perform power compensation aka noise dithering.
+ *
+ * @param[in] ctx ptr to the channel context
+ * @param[in] ch_index which channel to process
+ * @param[in,out] sp ptr to channel spectrum to process
+ * @param[in] rng_index indicates which RNG table to use
+ * @param[in] sb which subband to process
+ */
+void ff_atrac3p_power_compensation(Atrac3pChanUnitCtx *ctx, int ch_index,
+ float *sp, int rng_index, int sb_num);
+
+/**
+ * Regular IMDCT and windowing without overlapping,
+ * with spectrum reversal in the odd subbands.
+ *
+ * @param[in] fdsp pointer to float DSP context
+ * @param[in] mdct_ctx pointer to MDCT transform context
+ * @param[in] pIn float input
+ * @param[out] pOut float output
+ * @param[in] wind_id which MDCT window to apply
+ * @param[in] sb subband number
+ */
+void ff_atrac3p_imdct(AVFloatDSPContext *fdsp, FFTContext *mdct_ctx, float *pIn,
+ float *pOut, int wind_id, int sb);
+
+/**
+ * Subband synthesis filter based on the polyphase quadrature (pseudo-QMF)
+ * filter bank.
+ *
+ * @param[in] dct_ctx ptr to the pre-initialized IDCT context
+ * @param[in,out] hist ptr to the filter history
+ * @param[in] in input data to process
+ * @param[out] out receives processed data
+ */
+void ff_atrac3p_ipqf(FFTContext *dct_ctx, Atrac3pIPQFChannelCtx *hist,
+ const float *in, float *out);
+
+extern const uint16_t ff_atrac3p_qu_to_spec_pos[33];
+extern const float ff_atrac3p_sf_tab[64];
+extern const float ff_atrac3p_mant_tab[8];
+
+#endif /* AVCODEC_ATRAC3PLUS_H */
diff --git a/libavcodec/atrac3plus_data.h b/libavcodec/atrac3plus_data.h
new file mode 100644
index 0000000000..2a107eef1f
--- /dev/null
+++ b/libavcodec/atrac3plus_data.h
@@ -0,0 +1,1914 @@
+/*
+ * ATRAC3+ compatible decoder
+ *
+ * Copyright (c) 2010-2013 Maxim Poliakovski
+ *
+ * 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
+ */
+
+#ifndef AVCODEC_ATRAC3PLUS_DATA_H
+#define AVCODEC_ATRAC3PLUS_DATA_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+/** VLC tables for wordlen */
+static const uint8_t atrac3p_wl_huff_code1[3] = { 0, 2, 3 };
+
+static const uint8_t atrac3p_wl_huff_bits1[3] = { 1, 2, 2 };
+
+static const uint8_t atrac3p_wl_huff_xlat1[3] = { 0, 1, 7 };
+
+static const uint8_t atrac3p_wl_huff_code2[5] = { 0, 4, 5, 6, 7 };
+
+static const uint8_t atrac3p_wl_huff_bits2[5] = { 1, 3, 3, 3, 3 };
+
+static const uint8_t atrac3p_wl_huff_xlat2[5] = { 0, 1, 2, 6, 7 };
+
+static const uint8_t atrac3p_wl_huff_code3[8] = {
+ 0, 4, 0xC, 0x1E, 0x1F, 0xD, 0xE, 5
+};
+
+static const uint8_t atrac3p_wl_huff_bits3[8] = { 1, 3, 4, 5, 5, 4, 4, 3 };
+
+static const uint8_t atrac3p_wl_huff_code4[8] = {
+ 0, 4, 0xC, 0xD, 0x1E, 0x1F, 0xE, 5
+};
+
+static const uint8_t atrac3p_wl_huff_bits4[8] = { 1, 3, 4, 4, 5, 5, 4, 3 };
+
+/** VLC tables for scale factor indexes */
+static const uint16_t atrac3p_sf_huff_code1[64] = {
+ 0, 2, 3, 4, 5, 0xC, 0xD, 0xE0,
+ 0xE1, 0xE2, 0xE3, 0xE4, 0xE5, 0xE6, 0x1CE, 0x1CF,
+ 0x1D0, 0x1D1, 0x1D2, 0x1D3, 0x1D4, 0x1D5, 0x1D6, 0x1D7,
+ 0x1D8, 0x1D9, 0x1DA, 0x1DB, 0x1DC, 0x1DD, 0x1DE, 0x1DF,
+ 0x1E0, 0x1E1, 0x1E2, 0x1E3, 0x1E4, 0x1E5, 0x1E6, 0x1E7,
+ 0x1E8, 0x1E9, 0x1EA, 0x1EB, 0x1EC, 0x1ED, 0x1EE, 0x1EF,
+ 0x1F0, 0x1F1, 0x1F2, 0x1F3, 0x1F4, 0x1F5, 0x1F6, 0x1F7,
+ 0x1F8, 0x1F9, 0x1FA, 0x1FB, 0x1FC, 0x1FD, 0x1FE, 0x1FF
+};
+
+static const uint8_t atrac3p_sf_huff_bits1[64] = {
+ 2, 3, 3, 3, 3, 4, 4, 8, 8, 8, 8, 8, 8, 8, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9
+};
+
+static const uint8_t atrac3p_sf_huff_xlat1[64] = {
+ 0, 1, 61, 62, 63, 2, 60, 3, 4, 5, 6, 57, 58, 59, 7, 8,
+ 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56
+};
+
+static const uint8_t atrac3p_sf_huff_xlat2[64] = {
+ 0, 1, 2, 62, 63, 3, 61, 4, 5, 6, 57, 58, 59, 60, 7, 8,
+ 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,
+ 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40,
+ 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56
+};
+
+static const uint16_t atrac3p_sf_huff_code2[64] = {
+ 0, 4, 0x18, 0x19, 0x70, 0x1CA, 0x1CB, 0x1CC,
+ 0x1CD, 0x1CE, 0x1CF, 0x1D0, 0x1D1, 0x1D2, 0x1D3, 0x1D4,
+ 0x1D5, 0x1D6, 0x1D7, 0x1D8, 0x1D9, 0x1DA, 0x1DB, 0x1DC,
+ 0x1DD, 0x1DE, 0x1DF, 0x1E0, 0x1E1, 0x1E2, 0x1E3, 0x1E4,
+ 0x1E5, 0x1E6, 0x1E7, 0x1E8, 0x1E9, 0x1EA, 0x1EB, 0x1EC,
+ 0x1ED, 0x1EE, 0x1EF, 0x1F0, 0x1F1, 0x1F2, 0x1F3, 0x1F4,
+ 0x1F5, 0x1F6, 0x1F7, 0x1F8, 0x1F9, 0x1FA, 0x1FB, 0x1FC,
+ 0x1FD, 0x1FE, 0x1FF, 0xE4, 0x71, 0x1A, 0x1B, 5
+};
+
+static const uint8_t atrac3p_sf_huff_bits2[64] = {
+ 1, 3, 5, 5, 7, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 7, 5, 5, 3
+};
+
+static const uint16_t atrac3p_sf_huff_code3[64] = {
+ 0, 2, 3, 0x18, 0x19, 0x70, 0x1CC, 0x1CD,
+ 0x1CE, 0x1CF, 0x1D0, 0x1D1, 0x1D2, 0x1D3, 0x1D4, 0x1D5,
+ 0x1D6, 0x1D7, 0x1D8, 0x1D9, 0x1DA, 0x1DB, 0x1DC, 0x1DD,
+ 0x1DE, 0x1DF, 0x1E0, 0x1E1, 0x1E2, 0x1E3, 0x1E4, 0x1E5,
+ 0x1E6, 0x1E7, 0x1E8, 0x1E9, 0x1EA, 0x1EB, 0x1EC, 0x1ED,
+ 0x1EE, 0x1EF, 0x1F0, 0x1F1, 0x1F2, 0x1F3, 0x1F4, 0x1F5,
+ 0x1F6, 0x1F7, 0x1F8, 0x1F9, 0x1FA, 0x1FB, 0x1FC, 0x1FD,
+ 0x1FE, 0x1FF, 0x71, 0x72, 0x1A, 0x1B, 4, 5
+};
+
+static const uint8_t atrac3p_sf_huff_bits3[64] = {
+ 2, 3, 3, 5, 5, 7, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9,
+ 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 5, 5, 3, 3
+};
+
+static const uint16_t atrac3p_sf_huff_code4[16] = {
+ 0, 2, 3, 4, 5, 0xC, 0xD, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0, 0x3D, 0x3E, 0x3F
+};
+
+static const uint8_t atrac3p_sf_huff_bits4[16] = {
+ 2, 3, 3, 3, 3, 4, 4, 6, 6, 6, 6, 6, 0, 6, 6, 6
+};
+
+static const uint8_t atrac3p_sf_huff_xlat4[16] = {
+ 0, 1, 13, 14, 15, 2, 12, 3, 4, 5, 6, 7, 8, 9, 10, 11
+};
+
+static const uint8_t atrac3p_sf_huff_xlat5[16] = {
+ 0, 1, 2, 14, 15, 3, 13, 4, 5, 6, 7, 9, 8, 10, 11, 12
+};
+
+static const uint16_t atrac3p_sf_huff_code5[16] = {
+ 0, 4, 0xC, 0x1C, 0x78, 0x79, 0x7A, 0x7B,
+ 0, 0x7C, 0x7D, 0x7E, 0x7F, 0x1D, 0xD, 5
+};
+
+static const uint8_t atrac3p_sf_huff_bits5[16] = {
+ 1, 3, 4, 5, 7, 7, 7, 7, 0, 7, 7, 7, 7, 5, 4, 3
+};
+
+static const uint16_t atrac3p_sf_huff_code6[16] = {
+ 0, 2, 3, 0xC, 0x1C, 0x3C, 0x7C, 0x7D, 0, 0x7E, 0x7F, 0x3D, 0x1D, 0xD, 4, 5
+};
+
+static const uint8_t atrac3p_sf_huff_bits6[16] = {
+ 2, 3, 3, 4, 5, 6, 7, 7, 0, 7, 7, 6, 5, 4, 3, 3
+};
+
+/** VLC tables for code table indexes */
+static const uint8_t atrac3p_ct_huff_code1[4] = { 0, 2, 6, 7 };
+
+static const uint8_t atrac3p_ct_huff_bits1[4] = { 1, 2, 3, 3 };
+
+static const uint8_t atrac3p_ct_huff_code2[8] = { 0, 2, 3, 4, 5, 6, 0xE, 0xF };
+
+static const uint8_t atrac3p_ct_huff_bits2[8] = { 2, 3, 3, 3, 3, 3, 4, 4 };
+
+static const uint8_t atrac3p_ct_huff_xlat1[8] = { 0, 1, 2, 3, 6, 7, 4, 5 };
+
+static const uint8_t atrac3p_ct_huff_code3[8] = {
+ 0, 4, 0xA, 0xB, 0xC, 0xD, 0xE, 0xF
+};
+
+static const uint8_t atrac3p_ct_huff_bits3[8] = { 1, 3, 4, 4, 4, 4, 4, 4 };
+
+/* weights for quantized word lengths */
+static const int8_t atrac3p_wl_weights[6][32] = {
+ { 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+ { 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+ { 6, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 1, 1,
+ 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0 },
+ { 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 0, 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+ { 5, 5, 5, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 0,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+ { 6, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 2, 2, 1, 1,
+ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }
+};
+
+/* weights for quantized scale factors
+ * sf_weights[i] = i / (tab_idx + 1)
+ * where tab_idx = [1,2] */
+static const int8_t atrac3p_sf_weights[2][32] = {
+ { 0, 0, 1, 1, 2, 2, 3, 3, 4, 4, 5, 5, 6, 6, 7, 7,
+ 8, 8, 9, 9, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 15 },
+ { 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5,
+ 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 10, 10 }
+};
+
+/** Ungroup table for word length segments.
+ * Numbers in this table tell which coeff belongs to which segment. */
+static const uint8_t atrac3p_qu_num_to_seg[32] = {
+ 0, 0, 0, 1, 1, 1, 2, 2, 2, 3, 3, 3, 4, 4, 4, 5,
+ 5, 5, 6, 6, 6, 7, 7, 7, 8, 8, 8, 9, 9, 9, 9, 9
+};
+
+/** Map quant unit number to subband number */
+static const uint8_t atrac3p_qu_to_subband[32] = {
+ 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 2, 2, 2, 2,
+ 3, 3, 4, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15
+};
+
+/** Map subband number to number of power compensation groups */
+static const int atrac3p_subband_to_num_powgrps[16] = {
+ 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 4, 5, 5, 5, 5, 5
+};
+
+/** 3D base shape tables. The values are grouped together as follows:
+ * [num_start_values = 8][num_shape_tables = 16][num_seg_coeffs = 9]
+ * For each of the 8 start values there are 16 different shapes each
+ * 9 coefficients long. */
+static const int8_t atrac3p_wl_shapes[8][16][9] = {
+ { { 0, 0, 0, 0, 0, 0, 0, -2, -1 },
+ { 0, 0, 0, 0, 0, 0, 0, -5, -1 },
+ { 0, 0, 0, -7, 0, 0, 0, 0, 0 },
+ { 0, 0, 0, 0, 0, -7, 0, 0, 0 },
+ { 0, 0, 0, 0, 0, 0, -5, 0, 0 },
+ { 0, 0, 0, 0, -5, 0, 0, 0, 0 },
+ { -7, -7, 0, 0, 0, 0, 0, 0, 0 },
+ { 0, -7, 0, 0, 0, 0, 0, 0, 0 },
+ { -2, -2, -5, 0, 0, 0, 0, 0, 0 },
+ { 0, 0, 0, -2, -5, 0, 0, 0, 0 },
+ { 0, 0, 0, 0, 0, -2, -5, 0, 0 },
+ { 0, 0, 0, -5, 0, 0, 0, 0, 0 },
+ { 0, -2, -7, -2, 0, 0, 0, 0, 0 },
+ { 0, 0, 0, 0, -2, -5, 0, 0, 0 },
+ { 0, 0, 0, -5, -5, 0, 0, 0, 0 },
+ { 0, 0, 0, -5, -2, 0, 0, 0, 0 } },
+ { { -1, -5, -3, -2, -1, -1, 0, 0, 0 },
+ { -2, -5, -3, -3, -2, -1, -1, 0, 0 },
+ { 0, -1, -1, -1, 0, 0, 0, 0, 0 },
+ { -1, -3, 0, 0, 0, 0, 0, 0, 0 },
+ { -1, -2, 0, 0, 0, 0, 0, 0, 0 },
+ { -1, -3, -1, 0, 0, 0, 0, 1, 1 },
+ { -1, -5, -3, -3, -2, -1, 0, 0, 0 },
+ { -1, -1, -4, -2, -2, -1, -1, 0, 0 },
+ { -1, -1, -3, -2, -3, -1, -1, -1, 0 },
+ { -1, -4, -2, -3, -1, 0, 0, 0, 0 },
+ { 0, -1, -2, -2, -1, -1, 0, 0, 0 },
+ { 0, -2, -1, 0, 0, 0, 0, 0, 0 },
+ { -1, -1, 0, 0, 0, 0, 0, 0, 0 },
+ { -1, -1, -3, -2, -2, -1, -1, -1, 0 },
+ { 0, 0, 0, 0, 0, 0, 0, 0, 0 },
+ { 0, -1, -3, -2, -2, -1, -1, -1, 0 }, },
+ { { -1, -2, 0, 1, 1, 1, 1, 1, 1 },
+ { 0, -1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, -2, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, -2, 0, 1, 1, 1, 1, 1, 1 },
+ { -1, -1, 0, 1, 1, 1, 1, 1, 1 },
+ { 0, 0, -1, 0, 1, 1, 1, 1, 1 },
+ { -1, -1, 1, 1, 1, 1, 1, 1, 1 },
+ { 0, 0, -1, 1, 1, 1, 1, 1, 1 },
+ { 0, -1, 0, 1, 1, 1, 1, 1, 1 },
+ { -1, -1, -1, 1, 1, 1, 1, 1, 1 },
+ { 0, 0, 0, 0, 1, 1, 1, 1, 1 },
+ { 0, 0, 0, 1, 1, 1, 1, 1, 1 },
+ { 0, -1, -1, 1, 1, 1, 1, 1, 1 },
+ { 0, 1, 0, 1, 1, 1, 1, 1, 1 },
+ { 0, -3, -2, 1, 1, 1, 1, 2, 2 },
+ { -3, -5, -3, 2, 2, 2, 2, 2, 2 }, },
+ { { -1, -2, 0, 2, 2, 2, 2, 2, 2 },
+ { -1, -2, 0, 1, 2, 2, 2, 2, 2 },
+ { 0, -2, 0, 2, 2, 2, 2, 2, 2 },
+ { -1, 0, 1, 2, 2, 2, 2, 2, 2 },
+ { 0, 0, 1, 2, 2, 2, 2, 2, 2 },
+ { 0, -2, 0, 1, 2, 2, 2, 2, 2 },
+ { 0, -1, 1, 2, 2, 2, 2, 2, 2 },
+ { -1, -1, 0, 2, 2, 2, 2, 2, 2 },
+ { -1, -1, 0, 1, 2, 2, 2, 2, 2 },
+ { -1, -2, -1, 2, 2, 2, 2, 2, 2 },
+ { 0, -1, 0, 2, 2, 2, 2, 2, 2 },
+ { 1, 1, 0, 1, 2, 2, 2, 2, 2 },
+ { 0, 1, 2, 2, 2, 2, 2, 2, 2 },
+ { 1, 0, 0, 1, 2, 2, 2, 2, 2 },
+ { 0, 0, 0, 1, 2, 2, 2, 2, 2 },
+ { -1, -1, -1, 1, 2, 2, 2, 2, 2 }, },
+ { { 0, 1, 2, 3, 3, 3, 3, 3, 3 },
+ { 1, 1, 2, 3, 3, 3, 3, 3, 3 },
+ { -1, 0, 1, 2, 3, 3, 3, 3, 3 },
+ { 0, 0, 2, 3, 3, 3, 3, 3, 3 },
+ { -1, 0, 1, 3, 3, 3, 3, 3, 3 },
+ { 0, 0, 1, 3, 3, 3, 3, 3, 3 },
+ { 1, 2, 3, 3, 3, 3, 3, 3, 3 },
+ { 1, 2, 2, 3, 3, 3, 3, 3, 3 },
+ { 0, 1, 1, 3, 3, 3, 3, 3, 3 },
+ { 0, 0, 1, 2, 3, 3, 3, 3, 3 },
+ { -1, 1, 2, 3, 3, 3, 3, 3, 3 },
+ { -1, 0, 2, 3, 3, 3, 3, 3, 3 },
+ { 2, 2, 3, 3, 3, 3, 3, 3, 3 },
+ { 1, 1, 3, 3, 3, 3, 3, 3, 3 },
+ { 0, 2, 3, 3, 3, 3, 3, 3, 3 },
+ { 0, 1, 1, 2, 3, 3, 3, 3, 3 }, },
+ { { 0, 1, 2, 3, 4, 4, 4, 4, 4 },
+ { 1, 2, 3, 4, 4, 4, 4, 4, 4 },
+ { 0, 0, 2, 3, 4, 4, 4, 4, 4 },
+ { 1, 1, 2, 4, 4, 4, 4, 4, 4 },
+ { 0, 1, 2, 4, 4, 4, 4, 4, 4 },
+ { -1, 0, 1, 3, 4, 4, 4, 4, 4 },
+ { 0, 0, 1, 3, 4, 4, 4, 4, 4 },
+ { 1, 1, 2, 3, 4, 4, 4, 4, 4 },
+ { 0, 1, 1, 3, 4, 4, 4, 4, 4 },
+ { 2, 2, 3, 4, 4, 4, 4, 4, 4 },
+ { 1, 1, 3, 4, 4, 4, 4, 4, 4 },
+ { 1, 2, 2, 4, 4, 4, 4, 4, 4 },
+ { -1, 0, 2, 3, 4, 4, 4, 4, 4 },
+ { 0, 1, 3, 4, 4, 4, 4, 4, 4 },
+ { 1, 2, 2, 3, 4, 4, 4, 4, 4 },
+ { 0, 2, 3, 4, 4, 4, 4, 4, 4 }, },
+ { { 1, 2, 3, 4, 5, 5, 5, 5, 5 },
+ { 0, 1, 2, 3, 4, 5, 5, 5, 5 },
+ { 0, 1, 2, 3, 5, 5, 5, 5, 5 },
+ { 1, 1, 3, 4, 5, 5, 5, 5, 5 },
+ { 1, 1, 2, 4, 5, 5, 5, 5, 5 },
+ { 1, 2, 2, 4, 5, 5, 5, 5, 5 },
+ { 1, 1, 2, 3, 5, 5, 5, 5, 5 },
+ { 2, 2, 3, 4, 5, 5, 5, 5, 5 },
+ { 0, 1, 2, 4, 5, 5, 5, 5, 5 },
+ { 2, 2, 3, 5, 5, 5, 5, 5, 5 },
+ { 1, 2, 3, 5, 5, 5, 5, 5, 5 },
+ { 0, 1, 3, 4, 5, 5, 5, 5, 5 },
+ { 1, 2, 2, 3, 5, 5, 5, 5, 5 },
+ { 2, 3, 4, 5, 5, 5, 5, 5, 5 },
+ { 0, 2, 3, 4, 5, 5, 5, 5, 5 },
+ { 1, 1, 1, 3, 4, 5, 5, 5, 5 }, },
+ { { 1, 2, 3, 4, 5, 5, 5, 6, 6 },
+ { 1, 2, 3, 4, 5, 6, 6, 6, 6 },
+ { 2, 3, 4, 5, 6, 6, 6, 6, 6 },
+ { 1, 2, 3, 4, 6, 6, 6, 6, 6 },
+ { 2, 2, 3, 4, 5, 5, 5, 6, 6 },
+ { 1, 2, 3, 4, 5, 5, 6, 6, 6 },
+ { 2, 2, 3, 4, 6, 6, 6, 6, 6 },
+ { 2, 2, 3, 4, 5, 6, 6, 6, 6 },
+ { 2, 2, 4, 5, 6, 6, 6, 6, 6 },
+ { 2, 2, 3, 5, 6, 6, 6, 6, 6 },
+ { 1, 2, 3, 5, 6, 6, 6, 6, 6 },
+ { 2, 3, 3, 5, 6, 6, 6, 6, 6 },
+ { 1, 2, 4, 5, 6, 6, 6, 6, 6 },
+ { 2, 2, 3, 4, 5, 5, 6, 6, 6 },
+ { 2, 3, 3, 4, 6, 6, 6, 6, 6 },
+ { 1, 3, 4, 5, 6, 6, 6, 6, 6 } }
+};
+
+/** 2D base shape tables for scale factor coding.
+ * The values are grouped together as follows:
+ * [num_shape_tables = 64][num_seg_coeffs = 9] */
+static const int8_t atrac3p_sf_shapes[64][9] = {
+ { -3, -2, -1, 0, 3, 5, 6, 8, 40 },
+ { -3, -2, 0, 1, 7, 9, 11, 13, 20 },
+ { -1, 0, 0, 1, 6, 8, 10, 13, 41 },
+ { 0, 0, 0, 2, 5, 5, 6, 8, 14 },
+ { 0, 0, 0, 2, 6, 7, 8, 11, 47 },
+ { 0, 0, 1, 2, 5, 7, 8, 10, 32 },
+ { 0, 0, 1, 3, 8, 10, 12, 14, 47 },
+ { 0, 0, 2, 4, 9, 10, 12, 14, 40 },
+ { 0, 0, 3, 5, 9, 10, 12, 14, 22 },
+ { 0, 1, 3, 5, 10, 14, 18, 22, 31 },
+ { 0, 2, 5, 6, 10, 10, 10, 12, 46 },
+ { 0, 2, 5, 7, 12, 14, 15, 18, 44 },
+ { 1, 1, 4, 5, 7, 7, 8, 9, 15 },
+ { 1, 2, 2, 2, 4, 5, 7, 9, 26 },
+ { 1, 2, 2, 3, 6, 7, 7, 8, 47 },
+ { 1, 2, 2, 3, 6, 8, 10, 13, 22 },
+ { 1, 3, 4, 7, 13, 17, 21, 24, 41 },
+ { 1, 4, 0, 4, 10, 12, 13, 14, 17 },
+ { 2, 3, 3, 3, 6, 8, 10, 13, 48 },
+ { 2, 3, 3, 4, 9, 12, 14, 17, 47 },
+ { 2, 3, 3, 5, 10, 12, 14, 17, 25 },
+ { 2, 3, 5, 7, 8, 9, 9, 9, 13 },
+ { 2, 3, 5, 9, 16, 21, 25, 28, 33 },
+ { 2, 4, 5, 8, 12, 14, 17, 19, 26 },
+ { 2, 4, 6, 8, 12, 13, 13, 15, 20 },
+ { 2, 4, 7, 12, 20, 26, 30, 32, 35 },
+ { 3, 3, 5, 6, 12, 14, 16, 19, 34 },
+ { 3, 4, 4, 5, 7, 9, 10, 11, 48 },
+ { 3, 4, 5, 6, 8, 9, 10, 11, 16 },
+ { 3, 5, 5, 5, 7, 9, 10, 13, 35 },
+ { 3, 5, 5, 7, 10, 12, 13, 15, 49 },
+ { 3, 5, 7, 7, 8, 7, 9, 12, 21 },
+ { 3, 5, 7, 8, 12, 14, 15, 15, 24 },
+ { 3, 5, 7, 10, 16, 21, 24, 27, 44 },
+ { 3, 5, 8, 14, 21, 26, 28, 29, 42 },
+ { 3, 6, 10, 13, 18, 19, 20, 22, 27 },
+ { 3, 6, 11, 16, 24, 27, 28, 29, 31 },
+ { 4, 5, 4, 3, 4, 6, 8, 11, 18 },
+ { 4, 6, 5, 6, 9, 10, 12, 14, 20 },
+ { 4, 6, 7, 6, 6, 6, 7, 8, 46 },
+ { 4, 6, 7, 9, 13, 16, 18, 20, 48 },
+ { 4, 6, 7, 9, 14, 17, 20, 23, 31 },
+ { 4, 6, 9, 11, 14, 15, 15, 17, 21 },
+ { 4, 8, 13, 20, 27, 32, 35, 36, 38 },
+ { 5, 6, 6, 4, 5, 6, 7, 6, 6 },
+ { 5, 7, 7, 8, 9, 9, 10, 12, 49 },
+ { 5, 8, 9, 9, 10, 11, 12, 13, 42 },
+ { 5, 8, 10, 12, 15, 16, 17, 19, 42 },
+ { 5, 8, 12, 17, 26, 31, 32, 33, 44 },
+ { 5, 9, 13, 16, 20, 22, 23, 23, 35 },
+ { 6, 8, 8, 7, 6, 5, 6, 8, 15 },
+ { 6, 8, 8, 8, 9, 10, 12, 16, 24 },
+ { 6, 8, 8, 9, 10, 10, 11, 11, 13 },
+ { 6, 8, 10, 13, 19, 21, 24, 26, 32 },
+ { 6, 9, 10, 11, 13, 13, 14, 16, 49 },
+ { 7, 9, 9, 10, 13, 14, 16, 19, 27 },
+ { 7, 10, 12, 13, 16, 16, 17, 17, 27 },
+ { 7, 10, 12, 14, 17, 19, 20, 22, 48 },
+ { 8, 9, 10, 9, 10, 11, 11, 11, 19 },
+ { 8, 11, 12, 12, 13, 13, 13, 13, 17 },
+ { 8, 11, 13, 14, 16, 17, 19, 20, 27 },
+ { 8, 12, 17, 22, 26, 28, 29, 30, 33 },
+ { 10, 14, 16, 19, 21, 22, 22, 24, 28 },
+ { 10, 15, 17, 18, 21, 22, 23, 25, 43 }
+};
+
+static const uint8_t atrac3p_ct_restricted_to_full[2][7][4] = {
+ { { 0, 5, 4, 1 },
+ { 0, 1, 2, 3 },
+ { 3, 0, 4, 2 },
+ { 4, 0, 1, 2 },
+ { 1, 0, 4, 3 },
+ { 3, 0, 2, 1 },
+ { 0, 3, 1, 2 } },
+ { { 4, 0, 1, 2 },
+ { 0, 3, 2, 1 },
+ { 0, 1, 2, 3 },
+ { 0, 1, 2, 4 },
+ { 0, 1, 2, 3 },
+ { 1, 4, 2, 0 },
+ { 0, 1, 2, 3 } }
+};
+
+/** Tables for spectrum coding */
+static const uint8_t huff_a01_cb[14] = {
+ 1, 12, 1, 0, 0, 1, 7, 0, 19, 5, 13, 21, 6, 8
+};
+
+static const uint8_t huff_a01_xlat[81] = {
+ 0x00, 0x03, 0x40, 0xC0, 0x10, 0x30, 0x04, 0x0C, 0x01, 0x50, 0xD0, 0x70,
+ 0xF0, 0xC4, 0x14, 0x34, 0x4C, 0x1C, 0x3C, 0x41, 0xC1, 0x31, 0x05, 0x0D,
+ 0xC3, 0x13, 0x07, 0x0F, 0x44, 0xCC, 0x11, 0x43, 0x33, 0x54, 0x74, 0xDC,
+ 0xFC, 0x71, 0x15, 0x4D, 0xCD, 0x1D, 0xD3, 0xC7, 0x37, 0x3F, 0xD4, 0xF4,
+ 0x5C, 0x7C, 0x51, 0xD1, 0xF1, 0x45, 0xC5, 0x35, 0xDD, 0x3D, 0x53, 0x73,
+ 0xF3, 0x47, 0x17, 0x77, 0x4F, 0xCF, 0x1F, 0x55, 0xF5, 0x7D, 0xD7, 0x5F,
+ 0xFF, 0xD5, 0x75, 0x5D, 0xFD, 0x57, 0xF7, 0xDF, 0x7F
+};
+
+static const uint8_t huff_a02_cb[13] = {
+ 2, 12, 1, 0, 4, 11, 0, 1, 29, 6, 20, 7, 2
+};
+
+static const uint8_t huff_a02_xlat[81] = {
+ 0x00, 0x40, 0x10, 0x04, 0x01, 0x50, 0x44, 0x14, 0x54, 0x41, 0x11, 0x51,
+ 0x05, 0x45, 0x15, 0x55, 0x90, 0x80, 0x20, 0x60, 0x84, 0x94, 0x24, 0x64,
+ 0x08, 0x48, 0x18, 0x58, 0x81, 0x91, 0x21, 0x85, 0x95, 0x65, 0x09, 0x49,
+ 0x19, 0x59, 0x02, 0x42, 0x12, 0x52, 0x06, 0x46, 0x16, 0x56, 0x88, 0x61,
+ 0x25, 0x29, 0x69, 0x5A, 0xA0, 0xA4, 0x98, 0x28, 0x68, 0xA1, 0xA5, 0x89,
+ 0x99, 0xA9, 0x82, 0x92, 0x22, 0x62, 0x96, 0x26, 0x66, 0x0A, 0x4A, 0x1A,
+ 0xA8, 0x86, 0xA6, 0x8A, 0x9A, 0x2A, 0x6A, 0xA2, 0xAA
+};
+
+static const uint8_t huff_a03_cb[9] = { 3, 9, 1, 8, 0, 13, 18, 7, 2 };
+
+static const uint8_t huff_a03_xlat[49] = {
+ 0x00, 0x08, 0x38, 0x01, 0x09, 0x39, 0x07, 0x0F, 0x3F, 0x10, 0x30, 0x11,
+ 0x31, 0x02, 0x0A, 0x3A, 0x05, 0x06, 0x0E, 0x3E, 0x17, 0x37, 0x18, 0x28,
+ 0x19, 0x29, 0x2A, 0x32, 0x03, 0x0B, 0x33, 0x3B, 0x0D, 0x15, 0x3D, 0x16,
+ 0x1E, 0x36, 0x1F, 0x2F, 0x12, 0x1A, 0x13, 0x2B, 0x1D, 0x35, 0x2E, 0x1B,
+ 0x2D
+};
+
+static const uint8_t huff_a04_cb[4] = { 2, 3, 2, 4 };
+static const uint8_t huff_a04_xlat[6] = { 1, 2, 0, 3, 4, 5 };
+
+static const uint8_t huff_a05_cb[12] = {
+ 3, 12, 1, 3, 5, 8, 12, 23, 72, 68, 31, 2
+};
+
+static const uint8_t huff_a05_xlat[225] = {
+ 0x00, 0x10, 0xF0, 0x01, 0x11, 0xF1, 0x0F, 0x1F, 0xFF, 0x20, 0xE0, 0xE1,
+ 0x02, 0xF2, 0x0E, 0x1E, 0x2F, 0x30, 0xD0, 0x21, 0x12, 0x22, 0xE2, 0x03,
+ 0x0D, 0x2E, 0xEE, 0xFE, 0xEF, 0x40, 0xC0, 0x31, 0xC1, 0xD1, 0x32, 0xD2,
+ 0x13, 0x23, 0xE3, 0xF3, 0x04, 0xF4, 0x0C, 0x1C, 0x1D, 0x2D, 0xED, 0xFD,
+ 0x3E, 0xDE, 0x3F, 0xDF, 0x50, 0x60, 0x70, 0x90, 0xA0, 0xB0, 0x41, 0x51,
+ 0x61, 0x71, 0x91, 0xA1, 0xB1, 0x42, 0x62, 0x92, 0xA2, 0xC2, 0x33, 0xC3,
+ 0xD3, 0x14, 0x24, 0x34, 0xD4, 0xE4, 0x05, 0x15, 0xF5, 0x06, 0x16, 0x26,
+ 0xE6, 0xF6, 0x07, 0x17, 0xE7, 0xF7, 0x09, 0x19, 0x29, 0xF9, 0x0A, 0x1A,
+ 0x2A, 0xEA, 0xFA, 0x0B, 0x1B, 0xFB, 0x2C, 0x3C, 0xDC, 0xEC, 0xFC, 0x3D,
+ 0x4D, 0xCD, 0xDD, 0x4E, 0x6E, 0x7E, 0xAE, 0xCE, 0x4F, 0x5F, 0x6F, 0x7F,
+ 0x9F, 0xAF, 0xBF, 0xCF, 0x52, 0x72, 0xB2, 0x43, 0x53, 0x63, 0x73, 0x93,
+ 0xA3, 0xB3, 0x44, 0x64, 0x74, 0x94, 0xA4, 0xB4, 0xC4, 0x25, 0x35, 0xA5,
+ 0xC5, 0xD5, 0xE5, 0x36, 0x46, 0xB6, 0xC6, 0xD6, 0x27, 0x37, 0x47, 0xB7,
+ 0xC7, 0xD7, 0x39, 0x49, 0x59, 0xC9, 0xD9, 0xE9, 0x3A, 0x4A, 0x5A, 0xCA,
+ 0xDA, 0x2B, 0x3B, 0x4B, 0x6B, 0x7B, 0xDB, 0xEB, 0x4C, 0x5C, 0x6C, 0x7C,
+ 0x9C, 0xAC, 0xCC, 0x5D, 0x6D, 0x7D, 0x9D, 0xAD, 0xBD, 0x5E, 0x9E, 0xBE,
+ 0x54, 0x45, 0x55, 0x65, 0x75, 0x95, 0xB5, 0x56, 0x66, 0x76, 0x96, 0xA6,
+ 0x57, 0x67, 0x97, 0xA7, 0x69, 0x79, 0xA9, 0xB9, 0x6A, 0x7A, 0x9A, 0xAA,
+ 0xBA, 0x5B, 0x9B, 0xAB, 0xBB, 0xCB, 0xBC, 0x77, 0x99
+};
+
+static const uint8_t huff_a06_cb[7] = {
+ 2, 6, 1, 3, 2, 6, 4
+};
+
+static const uint8_t huff_a06_xlat[16] = {
+ 1, 0, 2, 3, 4, 5, 6, 7, 8, 9, 13, 14, 10, 11, 12, 15
+};
+
+static const uint8_t huff_a07_cb[11] = {
+ 2, 10, 1, 2, 2, 2, 6, 14, 21, 13, 2
+};
+
+static const uint8_t huff_a07_xlat[63] = {
+ 0, 1, 63, 2, 62, 3, 61, 4, 5, 6, 58, 59, 60, 7, 8, 9,
+ 10, 26, 27, 28, 36, 37, 38, 54, 55, 56, 57, 11, 12, 13, 14, 15,
+ 16, 25, 29, 30, 31, 33, 34, 35, 39, 47, 48, 49, 50, 51, 52, 53,
+ 17, 18, 19, 20, 21, 22, 23, 41, 42, 43, 44, 45, 46, 24, 40
+};
+
+static const uint8_t huff_a11_cb[13] = {
+ 1, 11, 1, 0, 0, 0, 8, 1, 18, 9, 22, 10, 12
+};
+
+static const uint8_t huff_a11_xlat[81] = {
+ 0x00, 0x40, 0xC0, 0x10, 0x30, 0x04, 0x0C, 0x01, 0x03, 0xD0, 0x50, 0x70,
+ 0xF0, 0xC4, 0x34, 0x4C, 0xCC, 0x1C, 0x41, 0xC1, 0x31, 0x05, 0x0D, 0x43,
+ 0xC3, 0x13, 0x07, 0x0F, 0x44, 0x14, 0x74, 0xDC, 0x3C, 0x11, 0x1D, 0x33,
+ 0x37, 0x54, 0xD4, 0xF4, 0x5C, 0x7C, 0xFC, 0xD1, 0x71, 0xF1, 0x15, 0x35,
+ 0x4D, 0xCD, 0xDD, 0x3D, 0xD3, 0x73, 0x47, 0xC7, 0x17, 0x77, 0x3F, 0x51,
+ 0x45, 0xC5, 0x55, 0x53, 0xF3, 0x4F, 0xCF, 0x1F, 0xFF, 0xD5, 0x75, 0xF5,
+ 0x5D, 0x7D, 0xFD, 0x57, 0xD7, 0xF7, 0x5F, 0xDF, 0x7F
+};
+
+static const uint8_t huff_a12_cb[8] = { 5, 10, 16, 11, 32, 19, 1, 2 };
+
+static const uint8_t huff_a12_xlat[81] = {
+ 0x00, 0x40, 0x10, 0x50, 0x04, 0x44, 0x14, 0x54, 0x01, 0x41, 0x11, 0x51,
+ 0x05, 0x45, 0x15, 0x55, 0x90, 0x94, 0x58, 0x91, 0x95, 0x19, 0x59, 0x06,
+ 0x46, 0x16, 0x56, 0x80, 0x60, 0x84, 0x24, 0x64, 0xA4, 0x08, 0x48, 0x18,
+ 0x68, 0x81, 0x21, 0x61, 0xA1, 0x85, 0x25, 0x65, 0xA5, 0x09, 0x49, 0x99,
+ 0x69, 0xA9, 0x02, 0x42, 0x12, 0x52, 0x96, 0x26, 0x66, 0x1A, 0x5A, 0x20,
+ 0xA0, 0x88, 0x98, 0x28, 0xA8, 0x89, 0x29, 0x82, 0x92, 0x22, 0x62, 0x86,
+ 0xA6, 0x0A, 0x4A, 0x9A, 0x6A, 0xAA, 0xA2, 0x8A, 0x2A
+};
+
+static const uint8_t huff_a13_cb[12] = {
+ 1, 10, 1, 0, 0, 4, 2, 2, 9, 15, 12, 4
+};
+
+static const uint8_t huff_a13_xlat[49] = {
+ 0x00, 0x08, 0x38, 0x01, 0x07, 0x39, 0x0F, 0x09, 0x3F, 0x10, 0x30, 0x31,
+ 0x02, 0x3A, 0x06, 0x0E, 0x3E, 0x17, 0x18, 0x28, 0x11, 0x29, 0x0A, 0x32,
+ 0x03, 0x0B, 0x3B, 0x05, 0x0D, 0x3D, 0x16, 0x1F, 0x37, 0x19, 0x12, 0x1A,
+ 0x2A, 0x13, 0x33, 0x15, 0x35, 0x1E, 0x2E, 0x36, 0x2F, 0x1B, 0x2B, 0x1D,
+ 0x2D
+};
+
+static const uint8_t huff_a14_cb[12] = {
+ 2, 11, 1, 0, 4, 3, 5, 16, 28, 34, 26, 4
+};
+
+static const uint8_t huff_a14_xlat[121] = {
+ 0x00, 0x10, 0xF0, 0x01, 0x0F, 0xF1, 0x1F, 0xFF, 0x20, 0xE0, 0x11, 0x02,
+ 0x0E, 0x30, 0x50, 0xB0, 0xD0, 0x21, 0xE1, 0x12, 0xF2, 0x03, 0x05, 0x0B,
+ 0x0D, 0x1E, 0xFE, 0x2F, 0xEF, 0x40, 0xC0, 0x31, 0x51, 0xB1, 0xC1, 0xD1,
+ 0x22, 0x52, 0xE2, 0x13, 0xF3, 0x04, 0x15, 0xF5, 0x1B, 0xEB, 0xFB, 0x0C,
+ 0x1D, 0xFD, 0x2E, 0x5E, 0xEE, 0x3F, 0x5F, 0xBF, 0xDF, 0x41, 0x32, 0x42,
+ 0xB2, 0xD2, 0x23, 0x53, 0xB3, 0xE3, 0x14, 0x24, 0xE4, 0xF4, 0x25, 0x35,
+ 0xD5, 0xE5, 0x2B, 0x3B, 0xDB, 0x1C, 0x2C, 0xBC, 0xEC, 0xFC, 0x2D, 0xBD,
+ 0xED, 0x3E, 0x4E, 0xBE, 0xDE, 0x4F, 0xCF, 0xC2, 0x33, 0x43, 0xC3, 0xD3,
+ 0x34, 0x44, 0x54, 0xB4, 0xD4, 0x45, 0x55, 0xC5, 0x4B, 0xCB, 0x3C, 0x4C,
+ 0x5C, 0xCC, 0xDC, 0x3D, 0x4D, 0x5D, 0xCD, 0xDD, 0xCE, 0xC4, 0xB5, 0x5B,
+ 0xBB
+};
+
+static const uint8_t huff_a15_cb[9] = { 5, 11, 9, 12, 16, 44, 98, 42, 4 };
+
+static const uint8_t huff_a15_xlat[225] = {
+ 0x00, 0x10, 0xF0, 0x01, 0x11, 0xF1, 0x0F, 0x1F, 0xFF, 0x20, 0xE0, 0x21,
+ 0xE1, 0x02, 0x12, 0xF2, 0x0E, 0x1E, 0xFE, 0x2F, 0xEF, 0x30, 0xD0, 0x31,
+ 0xD1, 0x22, 0xE2, 0x03, 0x13, 0xF3, 0x0D, 0x1D, 0xFD, 0x2E, 0xEE, 0x3F,
+ 0xDF, 0x40, 0x60, 0x70, 0x90, 0xA0, 0xC0, 0x41, 0xC1, 0x32, 0x42, 0xC2,
+ 0xD2, 0x23, 0x33, 0xD3, 0xE3, 0x04, 0x14, 0x24, 0xE4, 0xF4, 0x06, 0x16,
+ 0xF6, 0x07, 0x09, 0x0A, 0x1A, 0xFA, 0x0C, 0x1C, 0x2C, 0xEC, 0xFC, 0x2D,
+ 0x3D, 0xDD, 0xED, 0x3E, 0x4E, 0xCE, 0xDE, 0x4F, 0xCF, 0x50, 0xB0, 0x51,
+ 0x61, 0x71, 0x91, 0xA1, 0xB1, 0x52, 0x62, 0x72, 0x92, 0xA2, 0xB2, 0x43,
+ 0x53, 0x63, 0x73, 0x93, 0xA3, 0xC3, 0x34, 0x44, 0x64, 0xA4, 0xC4, 0xD4,
+ 0x05, 0x15, 0x25, 0x35, 0xD5, 0xE5, 0xF5, 0x26, 0x36, 0x46, 0xC6, 0xD6,
+ 0xE6, 0x17, 0x27, 0x37, 0xC7, 0xD7, 0xE7, 0xF7, 0x19, 0x29, 0x39, 0xC9,
+ 0xD9, 0xE9, 0xF9, 0x2A, 0x3A, 0x4A, 0x5A, 0xCA, 0xDA, 0xEA, 0x0B, 0x1B,
+ 0x2B, 0x3B, 0xCB, 0xDB, 0xEB, 0xFB, 0x3C, 0x4C, 0x6C, 0x7C, 0x9C, 0xAC,
+ 0xBC, 0xCC, 0xDC, 0x4D, 0x5D, 0x6D, 0x7D, 0x9D, 0xAD, 0xBD, 0xCD, 0x5E,
+ 0x6E, 0x7E, 0x9E, 0xAE, 0xBE, 0x5F, 0x6F, 0x7F, 0x9F, 0xAF, 0xBF, 0xB3,
+ 0x54, 0x74, 0x94, 0xB4, 0x45, 0x55, 0x65, 0x75, 0x95, 0xA5, 0xB5, 0xC5,
+ 0x56, 0x66, 0x76, 0x96, 0xA6, 0xB6, 0x47, 0x57, 0x67, 0xA7, 0xB7, 0x49,
+ 0x59, 0x69, 0xA9, 0xB9, 0x6A, 0x7A, 0x9A, 0xAA, 0xBA, 0x4B, 0x5B, 0x6B,
+ 0x7B, 0x9B, 0xAB, 0xBB, 0x5C, 0x77, 0x97, 0x79, 0x99
+};
+
+static const uint8_t huff_a16_cb[13] = {
+ 2, 12, 1, 1, 2, 2, 5, 7, 21, 54, 85, 62, 16
+};
+
+static const uint8_t huff_a16_xlat[256] = {
+ 0x00, 0x01, 0x10, 0x11, 0x21, 0x12, 0x20, 0x31, 0x02, 0x22, 0x13, 0x30,
+ 0x41, 0x32, 0x03, 0x23, 0x14, 0x24, 0x40, 0x51, 0x61, 0xD1, 0xE1, 0x42,
+ 0x52, 0xD2, 0x33, 0x43, 0xD3, 0x04, 0x34, 0x05, 0x15, 0x25, 0x16, 0x1D,
+ 0x2D, 0x1E, 0x2E, 0x50, 0x60, 0xD0, 0xE0, 0xF0, 0x71, 0x81, 0xF1, 0x62,
+ 0x72, 0xE2, 0xF2, 0x53, 0x63, 0xE3, 0xF3, 0x44, 0x54, 0xD4, 0xE4, 0xF4,
+ 0x35, 0x45, 0x55, 0xD5, 0xE5, 0xF5, 0x06, 0x26, 0x36, 0xD6, 0x07, 0x17,
+ 0x27, 0x37, 0xD7, 0x18, 0x28, 0x1C, 0x0D, 0x3D, 0x4D, 0x5D, 0x6D, 0x8D,
+ 0x0E, 0x3E, 0x4E, 0x5E, 0x0F, 0x1F, 0x2F, 0x3F, 0x5F, 0x70, 0x80, 0x90,
+ 0xC0, 0x91, 0xA1, 0xB1, 0xC1, 0x82, 0x92, 0xA2, 0xC2, 0x73, 0x83, 0x93,
+ 0xA3, 0xC3, 0x64, 0x74, 0x84, 0x94, 0xA4, 0xC4, 0x65, 0x75, 0x85, 0x46,
+ 0x56, 0x66, 0xC6, 0xE6, 0xF6, 0x47, 0x57, 0xE7, 0xF7, 0x08, 0x38, 0x48,
+ 0x58, 0x68, 0xD8, 0xE8, 0xF8, 0x09, 0x19, 0x29, 0x39, 0x59, 0xD9, 0xE9,
+ 0xF9, 0x1A, 0x2A, 0x3A, 0xDA, 0xEA, 0xFA, 0x1B, 0x2B, 0xDB, 0xEB, 0xFB,
+ 0x0C, 0x2C, 0x3C, 0xDC, 0xEC, 0x7D, 0x9D, 0xAD, 0xBD, 0xCD, 0x6E, 0x7E,
+ 0x8E, 0x9E, 0xAE, 0xBE, 0xCE, 0x4F, 0x6F, 0x7F, 0x8F, 0xAF, 0xA0, 0xB2,
+ 0xB3, 0xB4, 0x95, 0xA5, 0xB5, 0xC5, 0x76, 0x86, 0x96, 0xA6, 0xB6, 0x67,
+ 0x77, 0x87, 0x97, 0xC7, 0x78, 0x88, 0x98, 0xC8, 0x49, 0x69, 0x79, 0x89,
+ 0x99, 0xC9, 0x0A, 0x4A, 0x5A, 0x6A, 0x7A, 0xCA, 0x0B, 0x3B, 0x4B, 0x5B,
+ 0x6B, 0xCB, 0x4C, 0x5C, 0x6C, 0x7C, 0x8C, 0x9C, 0xAC, 0xBC, 0xCC, 0xFC,
+ 0xDD, 0xED, 0xFD, 0xDE, 0xEE, 0xFE, 0x9F, 0xBF, 0xCF, 0xDF, 0xEF, 0xFF,
+ 0xB0, 0xA7, 0xB7, 0xA8, 0xB8, 0xA9, 0xB9, 0x8A, 0x9A, 0xAA, 0xBA, 0x7B,
+ 0x8B, 0x9B, 0xAB, 0xBB
+};
+
+static const uint8_t huff_a17_cb[9] = { 3, 9, 3, 2, 5, 7, 17, 23, 6 };
+
+static const uint8_t huff_a17_xlat[63] = {
+ 0, 1, 63, 2, 62, 3, 4, 59, 60, 61, 5, 6, 7, 8, 56, 57,
+ 58, 9, 10, 11, 12, 13, 14, 26, 27, 36, 37, 38, 50, 51, 52, 53,
+ 54, 55, 15, 16, 17, 18, 19, 20, 21, 25, 28, 29, 30, 31, 33, 34,
+ 35, 39, 43, 44, 45, 46, 47, 48, 49, 22, 23, 24, 40, 41, 42
+};
+
+static const uint8_t huff_a21_cb[14] = {
+ 1, 12, 1, 0, 0, 2, 6, 0, 7, 21, 15, 17, 8, 4
+};
+
+static const uint8_t huff_a21_xlat[81] = {
+ 0x00, 0x40, 0xC0, 0x10, 0x30, 0x04, 0x0C, 0x01, 0x03, 0xD0, 0x70, 0x34,
+ 0x1C, 0x0D, 0x13, 0x07, 0x50, 0xF0, 0x44, 0xC4, 0x14, 0x74, 0x4C, 0xCC,
+ 0xDC, 0x3C, 0x41, 0xC1, 0x11, 0x31, 0x05, 0x1D, 0x43, 0xC3, 0x33, 0x37,
+ 0x0F, 0x54, 0xF4, 0xFC, 0xD1, 0x71, 0x15, 0x4D, 0xCD, 0xDD, 0xD3, 0x73,
+ 0x47, 0xC7, 0x77, 0x3F, 0xD4, 0x5C, 0x7C, 0x51, 0xF1, 0x45, 0xC5, 0x55,
+ 0x35, 0x3D, 0x53, 0xF3, 0x17, 0x4F, 0xCF, 0x1F, 0xFF, 0x75, 0xF5, 0x5D,
+ 0x7D, 0xD7, 0xF7, 0x5F, 0xDF, 0xD5, 0xFD, 0x57, 0x7F
+};
+
+static const uint8_t huff_a22_cb[10] = { 2, 9, 1, 4, 0, 4, 3, 8, 3, 2 };
+
+static const uint8_t huff_a22_xlat[25] = {
+ 0x00, 0x08, 0x38, 0x01, 0x07, 0x09, 0x39, 0x0F, 0x3F, 0x10, 0x02, 0x06,
+ 0x30, 0x11, 0x31, 0x0A, 0x3A, 0x0E, 0x17, 0x37, 0x32, 0x16, 0x3E, 0x12,
+ 0x36
+};
+
+static const uint8_t huff_a23_cb[9] = { 3, 9, 5, 0, 4, 6, 10, 16, 8 };
+
+static const uint8_t huff_a23_xlat[49] = {
+ 0x00, 0x08, 0x38, 0x01, 0x07, 0x09, 0x39, 0x0F, 0x3F, 0x10, 0x30, 0x02,
+ 0x3A, 0x06, 0x0E, 0x18, 0x28, 0x11, 0x31, 0x0A, 0x03, 0x05, 0x3E, 0x17,
+ 0x37, 0x19, 0x29, 0x12, 0x2A, 0x32, 0x0B, 0x33, 0x3B, 0x0D, 0x15, 0x3D,
+ 0x16, 0x1E, 0x36, 0x1F, 0x2F, 0x1A, 0x13, 0x1B, 0x2B, 0x1D, 0x2D, 0x35,
+ 0x2E
+};
+
+static const uint8_t huff_a24_cb[5] = { 2, 4, 3, 1, 2 };
+
+static const uint8_t huff_a25_cb[5] = { 2, 4, 1, 5, 2 };
+
+static const uint8_t huff_a25_xlat[8] = { 1, 0, 2, 3, 4, 5, 6, 7 };
+
+static const uint8_t huff_a26_cb[10] = { 4, 11, 3, 4, 12, 15, 34, 83, 75, 30 };
+
+static const uint8_t huff_a26_xlat[256] = {
+ 0x00, 0x01, 0x11, 0x10, 0x21, 0x12, 0x22, 0x20, 0x30, 0x31, 0x41, 0x02,
+ 0x32, 0x03, 0x13, 0x23, 0x33, 0x14, 0x24, 0x40, 0x51, 0x61, 0x42, 0x52,
+ 0x43, 0x53, 0x04, 0x34, 0x44, 0x15, 0x25, 0x35, 0x16, 0x26, 0x50, 0x60,
+ 0x71, 0x81, 0xD1, 0x62, 0x72, 0x82, 0xD2, 0x63, 0x73, 0xD3, 0x54, 0x64,
+ 0x05, 0x45, 0x55, 0x65, 0x06, 0x36, 0x46, 0x56, 0x17, 0x27, 0x37, 0x47,
+ 0x18, 0x28, 0x38, 0x19, 0x1D, 0x2D, 0x3D, 0x1E, 0x70, 0x80, 0x90, 0xD0,
+ 0xE0, 0x91, 0xA1, 0xB1, 0xC1, 0xE1, 0xF1, 0x92, 0xA2, 0xC2, 0xE2, 0xF2,
+ 0x83, 0x93, 0xA3, 0xC3, 0xE3, 0xF3, 0x74, 0x84, 0x94, 0xA4, 0xC4, 0xD4,
+ 0xE4, 0xF4, 0x75, 0x85, 0x95, 0xD5, 0xE5, 0x66, 0x76, 0x86, 0xD6, 0xE6,
+ 0x07, 0x57, 0x67, 0x77, 0xD7, 0x08, 0x48, 0x58, 0x68, 0xD8, 0x09, 0x29,
+ 0x39, 0x49, 0x59, 0x69, 0x1A, 0x2A, 0x3A, 0x4A, 0x1B, 0x2B, 0x1C, 0x2C,
+ 0x3C, 0x4C, 0x0D, 0x4D, 0x5D, 0x6D, 0x7D, 0x8D, 0x0E, 0x2E, 0x3E, 0x4E,
+ 0x5E, 0x6E, 0x1F, 0x2F, 0x3F, 0x4F, 0x5F, 0xA0, 0xB0, 0xC0, 0xF0, 0xB2,
+ 0xB3, 0xB4, 0xA5, 0xB5, 0xC5, 0xF5, 0x96, 0xA6, 0xB6, 0xC6, 0xF6, 0x87,
+ 0x97, 0xA7, 0xB7, 0xC7, 0xE7, 0xF7, 0x78, 0x88, 0x98, 0xA8, 0xC8, 0xE8,
+ 0xF8, 0x79, 0x89, 0x99, 0xC9, 0xD9, 0xE9, 0xF9, 0x0A, 0x5A, 0x6A, 0x7A,
+ 0x8A, 0xDA, 0xEA, 0xFA, 0x0B, 0x3B, 0x4B, 0x5B, 0x6B, 0x7B, 0x8B, 0xDB,
+ 0x0C, 0x5C, 0x6C, 0x7C, 0x8C, 0x9C, 0xDC, 0x9D, 0xAD, 0xBD, 0xCD, 0x7E,
+ 0x8E, 0x9E, 0xAE, 0xBE, 0x0F, 0x6F, 0x7F, 0x8F, 0x9F, 0xAF, 0xB8, 0xA9,
+ 0xB9, 0x9A, 0xAA, 0xBA, 0xCA, 0x9B, 0xAB, 0xBB, 0xCB, 0xEB, 0xFB, 0xAC,
+ 0xBC, 0xCC, 0xEC, 0xFC, 0xDD, 0xED, 0xFD, 0xCE, 0xDE, 0xEE, 0xFE, 0xBF,
+ 0xCF, 0xDF, 0xEF, 0xFF
+};
+
+static const uint8_t huff_a27_cb[7] = { 4, 8, 3, 14, 10, 20, 16 };
+
+static const uint8_t huff_a27_xlat[63] = {
+ 0, 2, 3, 1, 5, 6, 7, 9, 54, 55, 56, 58, 59, 60, 61, 62,
+ 63, 4, 8, 10, 11, 12, 14, 49, 52, 53, 57, 13, 15, 16, 17, 18,
+ 19, 22, 23, 25, 26, 30, 39, 43, 44, 45, 46, 47, 48, 50, 51, 20,
+ 21, 24, 27, 28, 29, 31, 33, 34, 35, 36, 37, 38, 40, 41, 42
+};
+
+static const uint8_t huff_a31_cb[8] = { 1, 6, 1, 0, 3, 1, 0, 4 };
+
+static const uint8_t huff_a31_xlat[9] = {
+ 0x00, 0x04, 0x0C, 0x01, 0x03, 0x05, 0x0D, 0x07, 0x0F
+};
+
+static const uint8_t huff_a32_cb[13] = {
+ 1, 11, 1, 0, 0, 2, 2, 6, 12, 18, 19, 15, 6
+};
+
+static const uint8_t huff_a32_xlat[81] = {
+ 0x00, 0x40, 0x01, 0x10, 0x04, 0x80, 0x50, 0x20, 0x14, 0x05, 0x02, 0x90,
+ 0x60, 0x44, 0x54, 0x24, 0x08, 0x18, 0x41, 0x11, 0x15, 0x09, 0x06, 0xA0,
+ 0x84, 0x94, 0x64, 0xA4, 0x48, 0x58, 0x28, 0x51, 0x21, 0x45, 0x55, 0x25,
+ 0x19, 0x12, 0x16, 0x0A, 0x1A, 0x68, 0xA8, 0x81, 0x91, 0x61, 0xA1, 0x85,
+ 0x95, 0x65, 0xA5, 0x49, 0x59, 0x29, 0x69, 0x42, 0x52, 0x46, 0x56, 0x2A,
+ 0x88, 0x98, 0x89, 0x99, 0xA9, 0x82, 0x92, 0x22, 0x62, 0x86, 0x26, 0x66,
+ 0x4A, 0x5A, 0x6A, 0xA2, 0x96, 0xA6, 0x8A, 0x9A, 0xAA
+};
+
+static const uint8_t huff_a33_cb[12] = {
+ 3, 12, 1, 1, 13, 1, 14, 28, 33, 81, 32, 52
+};
+
+static const uint8_t huff_a33_xlat[256] = {
+ 0x00, 0x10, 0x40, 0x50, 0x04, 0x44, 0x14, 0x54, 0x01, 0x41, 0x11, 0x51,
+ 0x05, 0x45, 0x15, 0x55, 0x90, 0x20, 0x94, 0x64, 0x18, 0x21, 0x95, 0x19,
+ 0x69, 0x02, 0x52, 0x06, 0x46, 0x16, 0x80, 0x60, 0x84, 0xD4, 0x24, 0x08,
+ 0x48, 0x58, 0x68, 0x81, 0x91, 0x61, 0x85, 0x25, 0x65, 0xA5, 0x09, 0x49,
+ 0x59, 0x29, 0x42, 0x12, 0x56, 0x96, 0xA6, 0x0A, 0x17, 0x1B, 0xD0, 0xC4,
+ 0x74, 0xF4, 0x88, 0xC8, 0x28, 0xA1, 0x71, 0xC5, 0xD5, 0x75, 0x99, 0xB9,
+ 0x4D, 0x1D, 0x2D, 0x6D, 0x22, 0x62, 0x66, 0x4A, 0x1A, 0x9A, 0x6A, 0x8E,
+ 0x5E, 0x43, 0x23, 0x07, 0x47, 0x57, 0x6B, 0xC0, 0xA0, 0xE0, 0x70, 0xB0,
+ 0xA4, 0xE4, 0x34, 0xB4, 0x98, 0xD8, 0xA8, 0x38, 0x78, 0x0C, 0x4C, 0x1C,
+ 0x5C, 0x9C, 0x6C, 0x7C, 0xC1, 0xD1, 0xE1, 0x31, 0xE5, 0x35, 0xB5, 0xF5,
+ 0x89, 0xA9, 0x79, 0xF9, 0x0D, 0xCD, 0x9D, 0xDD, 0xAD, 0x3D, 0x7D, 0x82,
+ 0xC2, 0x92, 0xD2, 0xE2, 0x72, 0xF2, 0x86, 0xD6, 0xE6, 0x76, 0xB6, 0x8A,
+ 0x5A, 0xDA, 0xEA, 0xFA, 0x4E, 0x1E, 0x9E, 0xEE, 0x03, 0x13, 0x53, 0x97,
+ 0xB7, 0x0B, 0x4B, 0x8B, 0x5B, 0x9B, 0xEB, 0x7B, 0x0F, 0x4F, 0x1F, 0x5F,
+ 0x9F, 0x2F, 0x3F, 0xBF, 0xE8, 0xB8, 0xF8, 0x8C, 0x2C, 0x3C, 0xFC, 0xB1,
+ 0xC9, 0xD9, 0xE9, 0x39, 0x5D, 0xED, 0xBD, 0xA2, 0x32, 0x26, 0x36, 0x2A,
+ 0xAA, 0xBA, 0x0E, 0x2E, 0x6E, 0x83, 0xC3, 0x93, 0x63, 0xB3, 0xA7, 0x37,
+ 0x30, 0xF0, 0xCC, 0xDC, 0xAC, 0xEC, 0xBC, 0xF1, 0x8D, 0xFD, 0xB2, 0xC6,
+ 0xF6, 0xCA, 0x3A, 0x7A, 0xCE, 0xDE, 0xAE, 0x3E, 0x7E, 0xBE, 0xFE, 0xD3,
+ 0xA3, 0xE3, 0x33, 0x73, 0xF3, 0x87, 0xC7, 0xD7, 0x27, 0x67, 0xE7, 0x77,
+ 0xF7, 0xCB, 0xDB, 0x2B, 0xAB, 0x3B, 0xBB, 0xFB, 0x8F, 0xCF, 0xDF, 0x6F,
+ 0xAF, 0xEF, 0x7F, 0xFF
+};
+
+static const uint8_t huff_a34_cb[7] = { 1, 5, 1, 1, 1, 1, 2 };
+
+static const uint8_t huff_a34_xlat[6] = { 1, 0, 2, 3, 4, 5 };
+
+static const uint8_t huff_a35_cb[11] = { 2, 10, 1, 0, 2, 3, 6, 19, 9, 75, 110 };
+
+static const uint8_t huff_a35_xlat[225] = {
+ 0x00, 0xF0, 0x0F, 0x10, 0x01, 0xFF, 0x20, 0xE0, 0x11, 0xF1, 0x0E, 0x1F,
+ 0x30, 0x40, 0xD0, 0x21, 0xE1, 0x02, 0x12, 0x22, 0xE2, 0xF2, 0x03, 0x13,
+ 0x1E, 0x2E, 0x3E, 0xEE, 0xFE, 0x2F, 0xEF, 0xD2, 0x43, 0xF3, 0x04, 0x0D,
+ 0x2D, 0x3D, 0x3F, 0xDF, 0x50, 0x60, 0x70, 0x90, 0xB0, 0x31, 0x41, 0x91,
+ 0xA1, 0xC1, 0xD1, 0x42, 0xA2, 0xC2, 0x23, 0x33, 0xE3, 0x24, 0x34, 0xB4,
+ 0xD4, 0xF4, 0x05, 0x15, 0x45, 0xE5, 0x16, 0x36, 0x56, 0xA6, 0xC6, 0xD6,
+ 0xF6, 0x57, 0xC7, 0xF7, 0x09, 0x29, 0x49, 0x59, 0x69, 0xF9, 0x0A, 0x2A,
+ 0x3A, 0x4A, 0xDA, 0xEA, 0xFA, 0x0B, 0x2B, 0xAB, 0xEB, 0xFB, 0x0C, 0x1C,
+ 0x2C, 0x3C, 0x4C, 0x5C, 0xCC, 0xDC, 0xFC, 0x1D, 0x4D, 0x6D, 0xBD, 0xCD,
+ 0xED, 0xFD, 0x4E, 0x6E, 0xCE, 0xDE, 0x7F, 0xA0, 0xC0, 0x51, 0x61, 0x71,
+ 0xB1, 0x32, 0x52, 0x62, 0x72, 0x92, 0xB2, 0x53, 0x63, 0x73, 0x93, 0xA3,
+ 0xB3, 0xC3, 0xD3, 0x14, 0x44, 0x54, 0x64, 0x74, 0x94, 0xA4, 0xC4, 0xE4,
+ 0x25, 0x35, 0x55, 0x65, 0x75, 0x95, 0xA5, 0xB5, 0xC5, 0xD5, 0xF5, 0x06,
+ 0x26, 0x46, 0x66, 0x76, 0x96, 0xB6, 0xE6, 0x07, 0x17, 0x27, 0x37, 0x47,
+ 0x67, 0x77, 0x97, 0xA7, 0xB7, 0xD7, 0xE7, 0x19, 0x39, 0x79, 0x99, 0xA9,
+ 0xB9, 0xC9, 0xD9, 0xE9, 0x1A, 0x5A, 0x6A, 0x7A, 0x9A, 0xAA, 0xBA, 0xCA,
+ 0x1B, 0x3B, 0x4B, 0x5B, 0x6B, 0x7B, 0x9B, 0xBB, 0xCB, 0xDB, 0x6C, 0x7C,
+ 0x9C, 0xAC, 0xBC, 0xEC, 0x5D, 0x7D, 0x9D, 0xAD, 0xDD, 0x5E, 0x7E, 0x9E,
+ 0xAE, 0xBE, 0x4F, 0x5F, 0x6F, 0x9F, 0xAF, 0xBF, 0xCF
+};
+
+static const uint8_t huff_a36_cb[12] = {
+ 3, 12, 1, 3, 5, 5, 13, 27, 69, 96, 35, 2
+};
+
+static const uint8_t huff_a36_xlat[256] = {
+ 0x00, 0x10, 0x01, 0x11, 0x20, 0x21, 0x02, 0x12, 0x22, 0x31, 0x41, 0x32,
+ 0x13, 0x23, 0x30, 0x40, 0x51, 0x42, 0x03, 0x33, 0x43, 0x04, 0x14, 0x24,
+ 0x34, 0x15, 0x25, 0x50, 0x61, 0x71, 0xD1, 0x52, 0x62, 0x72, 0xD2, 0x53,
+ 0x63, 0xD3, 0x44, 0x54, 0x64, 0x05, 0x35, 0x45, 0x55, 0x16, 0x26, 0x36,
+ 0x46, 0x17, 0x27, 0x1D, 0x2D, 0x3D, 0x60, 0x70, 0xD0, 0x81, 0x91, 0xA1,
+ 0xC1, 0xE1, 0xF1, 0x82, 0x92, 0xC2, 0xE2, 0xF2, 0x73, 0x83, 0xE3, 0xF3,
+ 0x74, 0x84, 0xC4, 0xD4, 0xE4, 0xF4, 0x65, 0x75, 0x85, 0xD5, 0xE5, 0x06,
+ 0x56, 0x66, 0xD6, 0xE6, 0x07, 0x37, 0x47, 0x57, 0x67, 0xD7, 0xE7, 0x18,
+ 0x28, 0x38, 0x48, 0x58, 0xD8, 0x19, 0x29, 0x2A, 0x1C, 0x2C, 0x0D, 0x4D,
+ 0x5D, 0x6D, 0x7D, 0x8D, 0x9D, 0x1E, 0x2E, 0x3E, 0x4E, 0x5E, 0x6E, 0x7E,
+ 0x1F, 0x2F, 0x3F, 0x80, 0x90, 0xA0, 0xC0, 0xE0, 0xF0, 0xB1, 0xA2, 0xB2,
+ 0x93, 0xA3, 0xB3, 0xC3, 0x94, 0xA4, 0xB4, 0x95, 0xA5, 0xB5, 0xC5, 0xF5,
+ 0x76, 0x86, 0x96, 0xA6, 0xC6, 0xF6, 0x77, 0x87, 0x97, 0xA7, 0xC7, 0xF7,
+ 0x08, 0x68, 0x78, 0x88, 0x98, 0xC8, 0xE8, 0xF8, 0x09, 0x39, 0x49, 0x59,
+ 0x69, 0x79, 0x89, 0xD9, 0xE9, 0xF9, 0x0A, 0x1A, 0x3A, 0x4A, 0x5A, 0x6A,
+ 0xDA, 0xEA, 0xFA, 0x1B, 0x2B, 0x3B, 0x4B, 0x5B, 0xDB, 0xEB, 0xFB, 0x0C,
+ 0x3C, 0x4C, 0x5C, 0x6C, 0x7C, 0x8C, 0x9C, 0xDC, 0xEC, 0xAD, 0xBD, 0xCD,
+ 0xDD, 0xED, 0x0E, 0x8E, 0x9E, 0xAE, 0xBE, 0x0F, 0x4F, 0x5F, 0x6F, 0x7F,
+ 0x8F, 0x9F, 0xAF, 0xB0, 0xB6, 0xB7, 0xA8, 0xB8, 0x99, 0xA9, 0xB9, 0xC9,
+ 0x7A, 0x8A, 0x9A, 0xAA, 0xBA, 0xCA, 0x0B, 0x6B, 0x7B, 0x8B, 0x9B, 0xCB,
+ 0xAC, 0xBC, 0xCC, 0xFC, 0xFD, 0xCE, 0xDE, 0xEE, 0xFE, 0xBF, 0xCF, 0xDF,
+ 0xEF, 0xFF, 0xAB, 0xBB
+};
+
+static const uint8_t huff_a37_cb[7] = { 4, 8, 7, 6, 8, 22, 20 };
+
+static const uint8_t huff_a37_xlat[63] = {
+ 0, 1, 2, 3, 61, 62, 63, 4, 5, 6, 58, 59, 60, 7, 8, 9,
+ 10, 54, 55, 56, 57, 11, 12, 13, 14, 15, 16, 25, 26, 27, 28, 29,
+ 30, 35, 36, 37, 38, 48, 49, 50, 51, 52, 53, 17, 18, 19, 20, 21,
+ 22, 23, 24, 31, 33, 34, 39, 40, 41, 42, 43, 44, 45, 46, 47
+};
+
+static const uint8_t huff_a41_cb[14] = {
+ 1, 12, 1, 0, 0, 6, 2, 0, 0, 0, 19, 9, 24, 20
+};
+
+static const uint8_t huff_a41_xlat[81] = {
+ 0x00, 0x40, 0xC0, 0x10, 0x30, 0x04, 0x0C, 0x01, 0x03, 0x50, 0xD0, 0x70,
+ 0xF0, 0xC4, 0x34, 0x4C, 0xCC, 0x1C, 0x41, 0xC1, 0x31, 0x05, 0x0D, 0x43,
+ 0xC3, 0x13, 0x07, 0x0F, 0x44, 0x14, 0x74, 0xDC, 0x3C, 0x11, 0x1D, 0x33,
+ 0x37, 0x54, 0xD4, 0xF4, 0x5C, 0x7C, 0xFC, 0xD1, 0x71, 0xF1, 0xC5, 0x15,
+ 0x35, 0x4D, 0xCD, 0xDD, 0x3D, 0xD3, 0x73, 0x47, 0xC7, 0x17, 0x77, 0x1F,
+ 0x3F, 0x51, 0x45, 0x55, 0xD5, 0x75, 0xF5, 0x5D, 0x7D, 0xFD, 0x53, 0xF3,
+ 0x57, 0xD7, 0xF7, 0x4F, 0xCF, 0x5F, 0xDF, 0x7F, 0xFF
+};
+
+static const uint8_t huff_a42_cb[10] = { 3, 10, 1, 2, 13, 1, 31, 13, 16, 4 };
+
+static const uint8_t huff_a42_xlat[81] = {
+ 0x00, 0x40, 0x01, 0x10, 0x50, 0x04, 0x44, 0x14, 0x54, 0x41, 0x11, 0x51,
+ 0x05, 0x45, 0x15, 0x55, 0x59, 0x80, 0x90, 0x20, 0x60, 0x84, 0x94, 0x24,
+ 0x64, 0x08, 0x48, 0x18, 0x58, 0x81, 0x91, 0x21, 0x61, 0x85, 0x95, 0x25,
+ 0x65, 0x09, 0x49, 0x19, 0x02, 0x42, 0x12, 0x52, 0x06, 0x46, 0x16, 0x56,
+ 0xA0, 0xA4, 0x68, 0xA1, 0xA5, 0x99, 0x29, 0x69, 0x96, 0x66, 0x4A, 0x1A,
+ 0x5A, 0x88, 0x98, 0x28, 0x89, 0xA9, 0x82, 0x92, 0x22, 0x62, 0x86, 0x26,
+ 0xA6, 0x0A, 0x9A, 0x2A, 0x6A, 0xA8, 0xA2, 0x8A, 0xAA
+};
+
+static const uint8_t huff_a43_cb[5] = { 2, 4, 2, 3, 2 };
+
+static const uint8_t huff_a43_xlat[7] = { 0, 7, 1, 2, 6, 3, 5 };
+
+static const uint8_t huff_a44_cb[9] = { 4, 10, 5, 4, 12, 17, 47, 24, 12 };
+
+static const uint8_t huff_a44_xlat[121] = {
+ 0x00, 0x10, 0xF0, 0x01, 0x0F, 0x11, 0xF1, 0x1F, 0xFF, 0x20, 0xE0, 0x21,
+ 0xE1, 0x02, 0x12, 0xF2, 0x0E, 0x1E, 0xFE, 0x2F, 0xEF, 0x30, 0x50, 0xD0,
+ 0xD1, 0x22, 0xE2, 0x03, 0x13, 0xF3, 0x0D, 0x1D, 0x2D, 0xFD, 0x2E, 0xEE,
+ 0x3F, 0xDF, 0x40, 0xB0, 0xC0, 0x31, 0x41, 0x51, 0xB1, 0xC1, 0x32, 0xB2,
+ 0xC2, 0xD2, 0x23, 0xB3, 0xD3, 0xE3, 0x04, 0x14, 0xE4, 0xF4, 0x05, 0x15,
+ 0xD5, 0xE5, 0xF5, 0x0B, 0x1B, 0x2B, 0x3B, 0xEB, 0xFB, 0x0C, 0x1C, 0x2C,
+ 0xFC, 0x3D, 0x5D, 0xED, 0x3E, 0x4E, 0x5E, 0xBE, 0xDE, 0x4F, 0x5F, 0xBF,
+ 0xCF, 0x42, 0x52, 0x33, 0x53, 0xC3, 0x24, 0xB4, 0xD4, 0x25, 0x35, 0xC5,
+ 0x4B, 0xCB, 0xDB, 0x3C, 0x4C, 0x5C, 0xDC, 0xEC, 0x4D, 0xBD, 0xCD, 0xDD,
+ 0xCE, 0x43, 0x34, 0x44, 0x54, 0xC4, 0x45, 0x55, 0xB5, 0x5B, 0xBB, 0xBC,
+ 0xCC
+};
+
+static const uint8_t huff_a45_cb[5] = { 2, 4, 2, 2, 4 };
+
+static const uint8_t huff_a45_xlat[8] = { 1, 2, 0, 3, 4, 5, 6, 7 };
+
+static const uint8_t huff_a46_cb[7] = { 5, 9, 1, 16, 31, 36, 172 };
+
+static const uint8_t huff_a46_xlat[256] = {
+ 0x02, 0x00, 0x30, 0x21, 0x31, 0x41, 0x61, 0x12, 0x22, 0x42, 0x62, 0x43,
+ 0x53, 0x24, 0x45, 0x26, 0x27, 0x10, 0x40, 0xB0, 0x01, 0x11, 0x81, 0x32,
+ 0x52, 0x72, 0x92, 0x03, 0x13, 0x33, 0x63, 0x14, 0x34, 0x54, 0x64, 0x74,
+ 0x05, 0x15, 0x25, 0x35, 0x55, 0x65, 0x06, 0x46, 0x56, 0x57, 0x67, 0x88,
+ 0x20, 0x51, 0x91, 0xD1, 0xF2, 0x23, 0x83, 0x93, 0x04, 0x44, 0x84, 0x94,
+ 0x75, 0x85, 0xC5, 0x36, 0x66, 0x96, 0xB6, 0x07, 0x37, 0x97, 0x08, 0x28,
+ 0x38, 0x48, 0x68, 0x09, 0x69, 0x79, 0x0A, 0x2A, 0x1B, 0x9B, 0x2C, 0x4D,
+ 0x50, 0x60, 0x70, 0x80, 0x90, 0xA0, 0xC0, 0xD0, 0xE0, 0xF0, 0x71, 0xA1,
+ 0xB1, 0xC1, 0xE1, 0xF1, 0x82, 0xA2, 0xB2, 0xC2, 0xD2, 0xE2, 0x73, 0xA3,
+ 0xB3, 0xC3, 0xD3, 0xE3, 0xF3, 0xA4, 0xB4, 0xC4, 0xD4, 0xE4, 0xF4, 0x95,
+ 0xA5, 0xB5, 0xD5, 0xE5, 0xF5, 0x16, 0x76, 0x86, 0xA6, 0xC6, 0xD6, 0xE6,
+ 0xF6, 0x17, 0x47, 0x77, 0x87, 0xA7, 0xB7, 0xC7, 0xD7, 0xE7, 0xF7, 0x18,
+ 0x58, 0x78, 0x98, 0xA8, 0xB8, 0xC8, 0xD8, 0xE8, 0xF8, 0x19, 0x29, 0x39,
+ 0x49, 0x59, 0x89, 0x99, 0xA9, 0xB9, 0xC9, 0xD9, 0xE9, 0xF9, 0x1A, 0x3A,
+ 0x4A, 0x5A, 0x6A, 0x7A, 0x8A, 0x9A, 0xAA, 0xBA, 0xCA, 0xDA, 0xEA, 0xFA,
+ 0x0B, 0x2B, 0x3B, 0x4B, 0x5B, 0x6B, 0x7B, 0x8B, 0xAB, 0xBB, 0xCB, 0xDB,
+ 0xEB, 0xFB, 0x0C, 0x1C, 0x3C, 0x4C, 0x5C, 0x6C, 0x7C, 0x8C, 0x9C, 0xAC,
+ 0xBC, 0xCC, 0xDC, 0xEC, 0xFC, 0x0D, 0x1D, 0x2D, 0x3D, 0x5D, 0x6D, 0x7D,
+ 0x8D, 0x9D, 0xAD, 0xBD, 0xCD, 0xDD, 0xED, 0xFD, 0x0E, 0x1E, 0x2E, 0x3E,
+ 0x4E, 0x5E, 0x6E, 0x7E, 0x8E, 0x9E, 0xAE, 0xBE, 0xCE, 0xDE, 0xEE, 0xFE,
+ 0x0F, 0x1F, 0x2F, 0x3F, 0x4F, 0x5F, 0x6F, 0x7F, 0x8F, 0x9F, 0xAF, 0xBF,
+ 0xCF, 0xDF, 0xEF, 0xFF
+};
+
+static const uint8_t huff_a47_cb[8] = { 4, 9, 5, 12, 9, 12, 15, 10 };
+
+static const uint8_t huff_a47_xlat[63] = {
+ 0, 1, 2, 62, 63, 3, 4, 5, 6, 8, 54, 56, 57, 58, 59, 60,
+ 61, 7, 9, 10, 11, 12, 13, 14, 53, 55, 15, 16, 17, 18, 19, 20,
+ 21, 36, 37, 39, 42, 52, 22, 25, 28, 35, 38, 40, 41, 43, 45, 46,
+ 47, 48, 49, 50, 51, 23, 24, 26, 27, 29, 30, 31, 33, 34, 44
+};
+
+static const uint8_t huff_a51_cb[12] = {
+ 2, 11, 1, 0, 6, 2, 6, 18, 4, 26, 6, 12
+};
+
+static const uint8_t huff_a51_xlat[81] = {
+ 0x00, 0x40, 0xC0, 0x30, 0x04, 0x01, 0x03, 0x10, 0x0C, 0xD0, 0x70, 0x34,
+ 0x1C, 0x0D, 0x07, 0x50, 0xF0, 0x44, 0xC4, 0x14, 0x4C, 0xCC, 0x3C, 0x41,
+ 0xC1, 0x11, 0x31, 0x05, 0x43, 0xC3, 0x13, 0x33, 0x0F, 0x74, 0xDC, 0x1D,
+ 0x37, 0x54, 0xD4, 0xF4, 0x5C, 0x7C, 0xFC, 0xD1, 0x71, 0xF1, 0xC5, 0x15,
+ 0x35, 0x4D, 0xCD, 0xDD, 0x3D, 0x53, 0xD3, 0x73, 0x47, 0xC7, 0x17, 0x77,
+ 0x4F, 0x1F, 0x3F, 0x51, 0x45, 0x55, 0xF3, 0xCF, 0xFF, 0xD5, 0x75, 0xF5,
+ 0x5D, 0x7D, 0xFD, 0x57, 0xD7, 0xF7, 0x5F, 0xDF, 0x7F
+};
+
+static const uint8_t huff_a52_cb[12] = { 1, 10, 1, 0, 2, 2, 0, 4, 3, 8, 3, 2 };
+
+static const uint8_t huff_a52_xlat[25] = {
+ 0x00, 0x08, 0x38, 0x01, 0x07, 0x09, 0x39, 0x0F, 0x3F, 0x10, 0x02, 0x06,
+ 0x30, 0x11, 0x31, 0x0A, 0x3A, 0x0E, 0x17, 0x37, 0x32, 0x16, 0x3E, 0x12,
+ 0x36
+};
+
+static const uint8_t huff_a53_xlat[7] = { 0, 1, 2, 6, 7, 3, 5 };
+
+static const uint8_t huff_a54_cb[8] = { 4, 9, 4, 7, 12, 19, 21, 58 };
+
+static const uint8_t huff_a54_xlat[121] = {
+ 0x00, 0x01, 0x0F, 0x1F, 0x10, 0xE0, 0xF0, 0x11, 0xF1, 0x2F, 0xFF, 0x20,
+ 0x21, 0xE1, 0x02, 0x12, 0xF2, 0x03, 0xF3, 0x0E, 0x2E, 0xFE, 0x3F, 0x30,
+ 0x40, 0xD0, 0xC1, 0xD1, 0x22, 0xC2, 0x33, 0xE3, 0x0C, 0xCC, 0x0D, 0x1D,
+ 0x2D, 0xFD, 0x1E, 0x3E, 0x5E, 0xEF, 0xC0, 0x52, 0xB2, 0xD2, 0x43, 0xC3,
+ 0xD3, 0x24, 0x45, 0xF5, 0x4B, 0x5B, 0xFB, 0x1C, 0x3D, 0xBD, 0xDD, 0xEE,
+ 0xBF, 0xCF, 0xDF, 0x50, 0xB0, 0x31, 0x41, 0x51, 0xB1, 0x32, 0x42, 0xE2,
+ 0x13, 0x23, 0x53, 0xB3, 0x04, 0x14, 0x34, 0x44, 0x54, 0xB4, 0xC4, 0xD4,
+ 0xE4, 0xF4, 0x05, 0x15, 0x25, 0x35, 0x55, 0xB5, 0xC5, 0xD5, 0xE5, 0x0B,
+ 0x1B, 0x2B, 0x3B, 0xBB, 0xCB, 0xDB, 0xEB, 0x2C, 0x3C, 0x4C, 0x5C, 0xBC,
+ 0xDC, 0xEC, 0xFC, 0x4D, 0x5D, 0xCD, 0xED, 0x4E, 0xBE, 0xCE, 0xDE, 0x4F,
+ 0x5F
+};
+
+static const uint8_t huff_a55_cb[8] = { 1, 6, 1, 1, 1, 0, 3, 2 };
+
+static const uint8_t huff_a55_xlat[8] = { 0, 1, 2, 3, 6, 7, 4, 5 };
+
+static const uint8_t huff_a56_cb[7] = { 3, 7, 1, 8, 6, 8, 8 };
+
+static const uint8_t huff_a56_xlat[31] = {
+ 4, 0, 1, 2, 3, 28, 29, 30, 31, 5, 6, 7, 24, 25, 27, 8,
+ 9, 14, 19, 21, 22, 23, 26, 10, 11, 12, 13, 15, 17, 18, 20
+};
+
+static const uint8_t huff_a57_cb[9] = { 3, 9, 1, 5, 7, 8, 16, 22, 4 };
+
+static const uint8_t huff_a57_xlat[63] = {
+ 0, 1, 2, 61, 62, 63, 3, 4, 5, 6, 58, 59,
+ 60, 7, 8, 9, 10, 54, 55, 56, 57, 11, 12, 13,
+ 14, 15, 26, 27, 28, 36, 37, 38, 49, 50, 51, 52,
+ 53, 16, 17, 18, 19, 20, 21, 23, 24, 25, 29, 30,
+ 31, 33, 34, 35, 39, 43, 44, 45, 46, 47, 48, 22,
+ 40, 41, 42
+};
+
+static const uint8_t huff_a61_cb[12] = {
+ 2, 11, 1, 0, 8, 0, 1, 16, 10, 29, 12, 4
+};
+
+static const uint8_t huff_a61_xlat[81] = {
+ 0x00, 0x40, 0xC0, 0x10, 0x30, 0x04, 0x0C, 0x01, 0x03, 0x70, 0x50, 0xD0,
+ 0xF0, 0x44, 0xC4, 0x14, 0x34, 0x4C, 0x1C, 0x3C, 0x31, 0x05, 0x0D, 0x13,
+ 0x07, 0x0F, 0x74, 0xCC, 0xDC, 0xFC, 0x41, 0xC1, 0x11, 0x43, 0xC3, 0x33,
+ 0x54, 0xD4, 0xF4, 0x5C, 0x7C, 0x51, 0xD1, 0x71, 0xF1, 0x45, 0xC5, 0x15,
+ 0x35, 0x4D, 0xCD, 0x1D, 0x3D, 0x53, 0xD3, 0x73, 0xF3, 0x47, 0xC7, 0x17,
+ 0x37, 0x4F, 0xCF, 0x1F, 0x3F, 0x55, 0xD5, 0x75, 0xF5, 0x5D, 0xDD, 0xFD,
+ 0x57, 0xD7, 0x77, 0xF7, 0xFF, 0x7D, 0x5F, 0xDF, 0x7F
+};
+
+static const uint8_t huff_a62_cb[8] = { 3, 8, 5, 2, 2, 9, 5, 2 };
+
+static const uint8_t huff_a62_xlat[25] = {
+ 0x00, 0x08, 0x38, 0x01, 0x07, 0x39, 0x0F, 0x09, 0x3F, 0x10, 0x30, 0x31,
+ 0x02, 0x3A, 0x06, 0x0E, 0x17, 0x37, 0x11, 0x0A, 0x32, 0x16, 0x3E, 0x12,
+ 0x36
+};
+
+static const uint8_t huff_a63_cb[11] = {
+ 3, 11, 1, 1, 10, 4, 16, 29, 46, 75, 74
+};
+
+static const uint8_t huff_a63_xlat[256] = {
+ 0x00, 0x40, 0x10, 0x50, 0x04, 0x44, 0x14, 0x01, 0x41, 0x05, 0x45, 0x55,
+ 0x54, 0x11, 0x51, 0x15, 0x80, 0x90, 0x60, 0x24, 0x64, 0xA4, 0x48, 0x61,
+ 0x95, 0x25, 0xA5, 0x02, 0x42, 0x52, 0x16, 0x56, 0x20, 0x84, 0x94, 0x18,
+ 0x58, 0x81, 0x91, 0x85, 0x65, 0x09, 0x49, 0x19, 0x59, 0x99, 0x29, 0x69,
+ 0x79, 0x5D, 0x12, 0x62, 0x06, 0x46, 0x86, 0x66, 0x1A, 0x5A, 0x6A, 0x47,
+ 0x17, 0xC0, 0xA0, 0xE0, 0xC4, 0xD4, 0x74, 0x08, 0x78, 0x0C, 0x4C, 0x1C,
+ 0x5C, 0xD1, 0x21, 0xE1, 0x71, 0xC5, 0xE5, 0x75, 0xB5, 0x89, 0xBD, 0x92,
+ 0x22, 0x96, 0xA6, 0x36, 0x0A, 0x4A, 0x8A, 0x9A, 0x2A, 0x7A, 0xDE, 0x6E,
+ 0x43, 0x13, 0x53, 0x23, 0x07, 0x77, 0x4B, 0x1B, 0x9B, 0x6B, 0x2F, 0xD0,
+ 0x30, 0x70, 0xE4, 0x34, 0xF4, 0xC8, 0x98, 0x28, 0x68, 0xA8, 0xE8, 0x38,
+ 0xB8, 0xF8, 0x9C, 0x2C, 0x6C, 0x7C, 0xA1, 0xB1, 0xD5, 0x35, 0xC9, 0xD9,
+ 0xA9, 0xE9, 0x39, 0xB9, 0xF9, 0xCD, 0x1D, 0x2D, 0xAD, 0x7D, 0xC2, 0xD2,
+ 0xA2, 0xB2, 0xF2, 0xC6, 0x26, 0x76, 0xB6, 0xDA, 0xAA, 0xEA, 0x3A, 0xFA,
+ 0x0E, 0x4E, 0x2E, 0x7E, 0xBE, 0xFE, 0x03, 0x83, 0x63, 0xA3, 0xB3, 0x87,
+ 0x57, 0x97, 0xD7, 0x27, 0x0B, 0x8B, 0x5B, 0x2B, 0xAB, 0xCF, 0x1F, 0x9F,
+ 0x7F, 0xBF, 0xB0, 0xF0, 0xB4, 0x88, 0xD8, 0x8C, 0xCC, 0xDC, 0xAC, 0xEC,
+ 0x3C, 0xBC, 0xFC, 0xC1, 0x31, 0xF1, 0xF5, 0x0D, 0x4D, 0x8D, 0x9D, 0xDD,
+ 0x6D, 0xED, 0x3D, 0xFD, 0x82, 0xE2, 0x32, 0x72, 0xD6, 0xE6, 0xF6, 0xCA,
+ 0xBA, 0x8E, 0xCE, 0x1E, 0x5E, 0x9E, 0xAE, 0xEE, 0x3E, 0xC3, 0x93, 0xD3,
+ 0xE3, 0x33, 0x73, 0xF3, 0xC7, 0x67, 0xA7, 0xE7, 0x37, 0xB7, 0xF7, 0xCB,
+ 0xDB, 0xEB, 0x3B, 0x7B, 0xBB, 0xFB, 0x0F, 0x4F, 0x8F, 0x5F, 0xDF, 0x6F,
+ 0xAF, 0xEF, 0x3F, 0xFF
+};
+
+static const uint8_t huff_a64_cb[8] = { 4, 9, 1, 7, 12, 36, 63, 2 };
+
+static const uint8_t huff_a64_xlat[121] = {
+ 0x00, 0x10, 0x20, 0xE0, 0xF0, 0x02, 0x0E, 0xEF, 0x30, 0x01, 0x11, 0x21,
+ 0x31, 0xF1, 0x12, 0xF2, 0x1E, 0xEE, 0xDF, 0xFF, 0x40, 0xC0, 0xD0, 0xD1,
+ 0xE1, 0x22, 0x32, 0x42, 0xD2, 0xE2, 0x03, 0x13, 0x23, 0xB3, 0xC3, 0xE3,
+ 0xF3, 0xE4, 0x05, 0xF5, 0x2B, 0x0C, 0xFC, 0x1D, 0x2D, 0xBD, 0xDD, 0xFD,
+ 0x2E, 0x4E, 0xDE, 0xFE, 0x0F, 0x1F, 0x2F, 0x3F, 0x50, 0xB0, 0x41, 0x51,
+ 0xB1, 0xC1, 0x52, 0xB2, 0xC2, 0x33, 0x43, 0x53, 0xD3, 0x04, 0x14, 0x24,
+ 0x34, 0x44, 0x54, 0xB4, 0xC4, 0xD4, 0xF4, 0x15, 0x25, 0x35, 0x45, 0x55,
+ 0xB5, 0xC5, 0xD5, 0xE5, 0x0B, 0x1B, 0x3B, 0x4B, 0x5B, 0xBB, 0xCB, 0xDB,
+ 0xEB, 0xFB, 0x1C, 0x2C, 0x3C, 0x4C, 0x5C, 0xBC, 0xCC, 0xDC, 0xEC, 0x0D,
+ 0x3D, 0x4D, 0x5D, 0xCD, 0xED, 0x3E, 0x5E, 0xBE, 0xCE, 0x4F, 0xCF, 0x5F,
+ 0xBF
+};
+
+static const uint8_t huff_a65_cb[8] = { 2, 7, 3, 0, 1, 3, 4, 4 };
+
+static const uint8_t huff_a65_xlat[15] = {
+ 0, 1, 15, 14, 2, 3, 13, 4, 6, 10, 12, 5, 7, 9, 11
+};
+
+static const uint8_t huff_a66_cb[11] = { 2, 10, 1, 2, 2, 6, 8, 6, 3, 1, 2 };
+
+static const uint8_t huff_a66_xlat[31] = {
+ 0, 1, 31, 2, 30, 3, 4, 15, 17, 28, 29, 5, 6, 7, 8, 24,
+ 25, 26, 27, 9, 10, 11, 21, 22, 23, 12, 19, 20, 13, 14, 18
+};
+
+static const uint8_t huff_a67_cb[10] = { 2, 9, 1, 1, 3, 4, 6, 13, 25, 10 };
+
+static const uint8_t huff_a67_xlat[63] = {
+ 0, 1, 2, 62, 63, 3, 4, 60, 61, 5, 6, 7, 57, 58, 59, 8,
+ 9, 10, 11, 12, 13, 26, 38, 52, 53, 54, 55, 56, 14, 15, 16, 17,
+ 18, 19, 25, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 39, 45, 46,
+ 47, 48, 49, 50, 51, 20, 21, 22, 23, 24, 40, 41, 42, 43, 44
+};
+
+static const uint8_t huff_a71_cb[5] = { 1, 3, 1, 1, 2 };
+
+static const uint8_t huff_a72_cb[12] = {
+ 2, 11, 1, 0, 4, 8, 3, 8, 24, 17, 12, 4
+};
+
+static const uint8_t huff_a72_xlat[81] = {
+ 0x00, 0x40, 0x10, 0x04, 0x01, 0x50, 0x44, 0x14, 0x54, 0x41, 0x11, 0x05,
+ 0x15, 0x51, 0x45, 0x55, 0x80, 0x90, 0x20, 0x64, 0x08, 0x19, 0x02, 0x06,
+ 0x60, 0x84, 0x94, 0x24, 0x48, 0x18, 0x58, 0x81, 0x91, 0x21, 0x61, 0x85,
+ 0x95, 0x25, 0x65, 0x09, 0x49, 0x59, 0x42, 0x12, 0x52, 0x46, 0x16, 0x56,
+ 0xA0, 0xA4, 0x98, 0x28, 0x68, 0xA1, 0xA5, 0x99, 0x29, 0x69, 0x96, 0x26,
+ 0x66, 0x0A, 0x4A, 0x1A, 0x5A, 0x88, 0xA8, 0x89, 0xA9, 0x82, 0x92, 0x22,
+ 0x62, 0x86, 0xA6, 0x2A, 0x6A, 0xA2, 0x8A, 0x9A, 0xAA
+};
+
+static const uint8_t huff_a73_cb[11] = { 2, 10, 1, 1, 5, 2, 8, 7, 13, 8, 4 };
+
+static const uint8_t huff_a73_xlat[49] = {
+ 0x00, 0x08, 0x38, 0x01, 0x39, 0x07, 0x0F, 0x09, 0x3F, 0x10, 0x30, 0x31,
+ 0x02, 0x3A, 0x06, 0x0E, 0x17, 0x11, 0x0A, 0x32, 0x0D, 0x16, 0x3E, 0x37,
+ 0x18, 0x28, 0x19, 0x29, 0x12, 0x2A, 0x03, 0x3B, 0x05, 0x15, 0x1E, 0x1F,
+ 0x2F, 0x1A, 0x0B, 0x2B, 0x33, 0x35, 0x3D, 0x2E, 0x36, 0x13, 0x1B, 0x1D,
+ 0x2D
+};
+
+static const uint8_t huff_a74_cb[14] = {
+ 1, 12, 1, 0, 0, 4, 0, 4, 5, 9, 30, 45, 21, 2
+};
+
+static const uint8_t huff_a74_xlat[121] = {
+ 0x00, 0x10, 0xF0, 0x01, 0x0F, 0x11, 0xF1, 0x1F, 0xFF, 0x20, 0xE0, 0x02,
+ 0xF2, 0x0E, 0x21, 0xE1, 0x12, 0xE2, 0x1E, 0x2E, 0xFE, 0x2F, 0xEF, 0x30,
+ 0x50, 0xB0, 0xC0, 0xD0, 0x31, 0xB1, 0xD1, 0x22, 0xD2, 0x03, 0x13, 0xE3,
+ 0xF3, 0xF4, 0x05, 0xE5, 0xF5, 0x0B, 0x1B, 0x0C, 0x0D, 0x1D, 0x2D, 0xFD,
+ 0x3E, 0xEE, 0x3F, 0x5F, 0xDF, 0x40, 0x41, 0x51, 0xC1, 0x32, 0x42, 0x52,
+ 0xB2, 0xC2, 0x23, 0x33, 0xB3, 0xC3, 0xD3, 0x04, 0x14, 0x24, 0xD4, 0xE4,
+ 0x15, 0x25, 0xC5, 0xD5, 0x2B, 0x3B, 0xEB, 0xFB, 0x1C, 0x2C, 0x3C, 0x5C,
+ 0xEC, 0xFC, 0x3D, 0x5D, 0xDD, 0xED, 0x4E, 0x5E, 0xBE, 0xCE, 0xDE, 0x4F,
+ 0xBF, 0xCF, 0x43, 0x53, 0x34, 0x54, 0xB4, 0xC4, 0x35, 0x45, 0x55, 0xB5,
+ 0x4B, 0x5B, 0xCB, 0xDB, 0x4C, 0xBC, 0xCC, 0xDC, 0x4D, 0xBD, 0xCD, 0x44,
+ 0xBB
+};
+
+static const uint8_t huff_a75_cb[7] = { 2, 6, 1, 3, 3, 4, 4 };
+
+static const uint8_t huff_a75_xlat[15] = {
+ 0, 1, 14, 15, 2, 3, 13, 4, 6, 10, 12, 5, 7, 9, 11
+};
+
+static const uint8_t huff_a76_cb[12] = {
+ 3, 12, 1, 3, 4, 8, 10, 36, 60, 78, 48, 8
+};
+
+static const uint8_t huff_a76_xlat[256] = {
+ 0x00, 0x10, 0x01, 0x11, 0x20, 0x21, 0x02, 0x12, 0x30, 0x31, 0x41, 0x22,
+ 0x03, 0x13, 0x23, 0x14, 0x40, 0x51, 0x61, 0x32, 0x42, 0x33, 0x04, 0x24,
+ 0x15, 0x16, 0x50, 0x60, 0xD0, 0x71, 0x81, 0xD1, 0xE1, 0xF1, 0x52, 0x62,
+ 0x72, 0xD2, 0x43, 0x53, 0x63, 0xD3, 0x34, 0x44, 0x54, 0x05, 0x25, 0x35,
+ 0x45, 0x06, 0x26, 0x36, 0x17, 0x27, 0x18, 0x0D, 0x1D, 0x2D, 0x3D, 0x1E,
+ 0x2E, 0x1F, 0x70, 0x80, 0xE0, 0xF0, 0x91, 0xA1, 0xC1, 0x82, 0x92, 0xC2,
+ 0xE2, 0xF2, 0x73, 0x83, 0x93, 0xE3, 0xF3, 0x64, 0x74, 0x84, 0xD4, 0xE4,
+ 0xF4, 0x55, 0x65, 0xD5, 0xE5, 0xF5, 0x46, 0x56, 0x66, 0xD6, 0x07, 0x37,
+ 0x47, 0x57, 0x08, 0x28, 0x38, 0x48, 0x19, 0x29, 0x39, 0x1A, 0x2A, 0x1B,
+ 0x1C, 0x2C, 0x3C, 0x4D, 0x5D, 0x6D, 0x0E, 0x3E, 0x4E, 0x5E, 0x0F, 0x2F,
+ 0x3F, 0x4F, 0x90, 0xA0, 0xB0, 0xC0, 0xB1, 0xA2, 0xB2, 0xA3, 0xB3, 0xC3,
+ 0x94, 0xA4, 0xB4, 0xC4, 0x75, 0x85, 0x95, 0xA5, 0xC5, 0x76, 0x86, 0x96,
+ 0xE6, 0xF6, 0x67, 0x77, 0x87, 0xD7, 0xE7, 0xF7, 0x58, 0x68, 0x78, 0x88,
+ 0xD8, 0xE8, 0xF8, 0x09, 0x49, 0x59, 0x69, 0xD9, 0xE9, 0xF9, 0x0A, 0x3A,
+ 0x4A, 0x5A, 0xDA, 0xEA, 0x0B, 0x2B, 0x3B, 0x4B, 0xDB, 0x0C, 0x4C, 0x5C,
+ 0x6C, 0xDC, 0x7D, 0x8D, 0x9D, 0xAD, 0xBD, 0xCD, 0x6E, 0x7E, 0x8E, 0x9E,
+ 0xAE, 0xBE, 0x5F, 0x6F, 0x7F, 0x8F, 0x9F, 0xAF, 0xB5, 0xA6, 0xB6, 0xC6,
+ 0x97, 0xA7, 0xC7, 0x98, 0xA8, 0xB8, 0xC8, 0x79, 0x89, 0x99, 0xA9, 0xB9,
+ 0xC9, 0x6A, 0x7A, 0x8A, 0x9A, 0xAA, 0xCA, 0xFA, 0x5B, 0x6B, 0x7B, 0x8B,
+ 0xCB, 0xEB, 0xFB, 0x7C, 0x8C, 0x9C, 0xAC, 0xBC, 0xEC, 0xFC, 0xDD, 0xED,
+ 0xFD, 0xCE, 0xDE, 0xEE, 0xFE, 0xBF, 0xCF, 0xDF, 0xB7, 0xBA, 0x9B, 0xAB,
+ 0xBB, 0xCC, 0xEF, 0xFF
+};
+
+static const uint8_t huff_b01_cb[14] = {
+ 1, 12, 1, 0, 0, 2, 6, 0, 11, 13, 12, 24, 4, 8
+};
+
+static const uint8_t huff_b01_xlat[81] = {
+ 0x00, 0x01, 0x03, 0x40, 0xC0, 0x10, 0x30, 0x04, 0x0C, 0x50, 0xD0, 0x70,
+ 0xF0, 0x34, 0x1C, 0x05, 0x0D, 0x13, 0x07, 0x0F, 0x44, 0xC4, 0x14, 0x4C,
+ 0xCC, 0x3C, 0x41, 0xC1, 0x11, 0x31, 0x43, 0xC3, 0x33, 0x54, 0x74, 0xDC,
+ 0xFC, 0x71, 0x15, 0x4D, 0x1D, 0xD3, 0xC7, 0x37, 0x3F, 0xD4, 0xF4, 0x5C,
+ 0x7C, 0x51, 0xD1, 0xF1, 0x45, 0xC5, 0x55, 0x35, 0xCD, 0xDD, 0x3D, 0x53,
+ 0x73, 0xF3, 0x47, 0x17, 0x77, 0x4F, 0xCF, 0x1F, 0xFF, 0xF5, 0x7D, 0xD7,
+ 0x5F, 0xD5, 0x75, 0x5D, 0xFD, 0x57, 0xF7, 0xDF, 0x7F
+};
+
+static const uint8_t huff_b02_cb[14] = {
+ 1, 12, 1, 0, 0, 4, 0, 8, 4, 9, 19, 13, 13, 10
+};
+
+static const uint8_t huff_b02_xlat[81] = {
+ 0x00, 0x40, 0x10, 0x04, 0x01, 0x50, 0x44, 0x14, 0x54, 0x41, 0x11, 0x05,
+ 0x15, 0x80, 0x51, 0x45, 0x55, 0x90, 0x20, 0x60, 0x24, 0x08, 0x18, 0x09,
+ 0x02, 0x06, 0x84, 0x94, 0x64, 0x48, 0x58, 0x81, 0x91, 0x21, 0x61, 0x95,
+ 0x25, 0x65, 0x19, 0x59, 0x42, 0x12, 0x46, 0x16, 0x56, 0xA0, 0xA4, 0x28,
+ 0x68, 0x85, 0xA5, 0x49, 0x29, 0x69, 0x52, 0x0A, 0x1A, 0x5A, 0x88, 0x98,
+ 0xA1, 0x89, 0x99, 0xA9, 0x22, 0x62, 0x96, 0x26, 0x66, 0x4A, 0x6A, 0xA8,
+ 0x82, 0x92, 0xA2, 0x86, 0xA6, 0x8A, 0x9A, 0x2A, 0xAA
+};
+
+static const uint8_t huff_b03_cb[11] = { 1, 9, 1, 0, 0, 4, 0, 5, 12, 13, 14 };
+
+static const uint8_t huff_b03_xlat[49] = {
+ 0x00, 0x08, 0x38, 0x01, 0x07, 0x30, 0x09, 0x39, 0x0F, 0x3F, 0x10, 0x18,
+ 0x28, 0x31, 0x02, 0x3A, 0x03, 0x05, 0x06, 0x0E, 0x17, 0x37, 0x11, 0x19,
+ 0x29, 0x0A, 0x32, 0x0B, 0x3B, 0x0D, 0x15, 0x3D, 0x3E, 0x1F, 0x2F, 0x12,
+ 0x1A, 0x2A, 0x13, 0x1B, 0x2B, 0x33, 0x1D, 0x2D, 0x35, 0x16, 0x1E, 0x2E,
+ 0x36
+};
+
+static const uint8_t huff_b04_cb[12] = {
+ 2, 11, 1, 0, 4, 4, 5, 9, 30, 45, 21, 2
+};
+
+static const uint8_t huff_b04_xlat[121] = {
+ 0x00, 0x10, 0xF0, 0x01, 0x0F, 0x11, 0xF1, 0x1F, 0xFF, 0x20, 0xE0, 0x02,
+ 0xF2, 0x0E, 0x21, 0xE1, 0x12, 0xE2, 0x1E, 0x2E, 0xFE, 0x2F, 0xEF, 0x30,
+ 0x50, 0xB0, 0xC0, 0xD0, 0x31, 0xB1, 0xD1, 0x22, 0xD2, 0x03, 0x13, 0xE3,
+ 0xF3, 0xF4, 0x05, 0xE5, 0xF5, 0x0B, 0x1B, 0x0C, 0x0D, 0x1D, 0x2D, 0xFD,
+ 0x3E, 0xEE, 0x3F, 0x5F, 0xDF, 0x40, 0x41, 0x51, 0xC1, 0x32, 0x42, 0x52,
+ 0xB2, 0xC2, 0x23, 0x33, 0xB3, 0xC3, 0xD3, 0x04, 0x14, 0x24, 0xD4, 0xE4,
+ 0x15, 0x25, 0xC5, 0xD5, 0x2B, 0x3B, 0xEB, 0xFB, 0x1C, 0x2C, 0x3C, 0x5C,
+ 0xEC, 0xFC, 0x3D, 0x5D, 0xDD, 0xED, 0x4E, 0x5E, 0xBE, 0xCE, 0xDE, 0x4F,
+ 0xBF, 0xCF, 0x43, 0x53, 0x34, 0x54, 0xB4, 0xC4, 0x35, 0x45, 0x55, 0xB5,
+ 0x4B, 0x5B, 0xCB, 0xDB, 0x4C, 0xBC, 0xCC, 0xDC, 0x4D, 0xBD, 0xCD, 0x44,
+ 0xBB
+};
+
+static const uint8_t huff_b05_cb[11] = {
+ 3, 11, 1, 4, 4, 4, 12, 30, 73, 75, 22
+};
+
+static const uint8_t huff_b05_xlat[225] = {
+ 0x00, 0x10, 0xF0, 0x01, 0x0F, 0x11, 0xF1, 0x1F, 0xFF, 0x20, 0xE0, 0x02,
+ 0x0E, 0x30, 0xD0, 0x21, 0xE1, 0x12, 0xF2, 0x03, 0x0D, 0x1E, 0xFE, 0x2F,
+ 0xEF, 0x40, 0x60, 0x70, 0x90, 0xA0, 0xC0, 0x31, 0xD1, 0x22, 0x32, 0xD2,
+ 0xE2, 0x13, 0x23, 0xE3, 0xF3, 0x04, 0x06, 0x07, 0x09, 0x0A, 0x0C, 0x1D,
+ 0x2D, 0xFD, 0x2E, 0x3E, 0xEE, 0x3F, 0xDF, 0x50, 0xB0, 0x41, 0x51, 0x61,
+ 0x71, 0x91, 0xA1, 0xB1, 0xC1, 0x42, 0x62, 0x72, 0x92, 0xA2, 0xC2, 0x33,
+ 0x93, 0xA3, 0xD3, 0x14, 0x24, 0xE4, 0xF4, 0x05, 0x15, 0xF5, 0x16, 0x26,
+ 0xD6, 0xE6, 0xF6, 0x17, 0x27, 0xD7, 0xE7, 0xF7, 0x19, 0x29, 0x39, 0xE9,
+ 0xF9, 0x1A, 0x2A, 0xEA, 0xFA, 0x0B, 0x1B, 0xFB, 0x1C, 0x2C, 0xEC, 0xFC,
+ 0x3D, 0x7D, 0x9D, 0xDD, 0xED, 0x4E, 0x6E, 0x7E, 0x9E, 0xAE, 0xCE, 0xDE,
+ 0x4F, 0x5F, 0x6F, 0x7F, 0x9F, 0xAF, 0xBF, 0xCF, 0x52, 0xB2, 0x43, 0x53,
+ 0x63, 0x73, 0xB3, 0xC3, 0x34, 0x44, 0x64, 0x74, 0x94, 0xA4, 0xB4, 0xC4,
+ 0xD4, 0x25, 0x35, 0x65, 0x75, 0x95, 0xA5, 0xD5, 0xE5, 0x36, 0x46, 0x56,
+ 0x66, 0xA6, 0xB6, 0xC6, 0x37, 0x47, 0x57, 0xB7, 0xC7, 0x49, 0x59, 0x69,
+ 0xB9, 0xC9, 0xD9, 0x3A, 0x4A, 0x5A, 0x6A, 0xAA, 0xBA, 0xCA, 0xDA, 0x2B,
+ 0x3B, 0x6B, 0x7B, 0x9B, 0xAB, 0xDB, 0xEB, 0x3C, 0x4C, 0x6C, 0x7C, 0x9C,
+ 0xAC, 0xCC, 0xDC, 0x4D, 0x5D, 0x6D, 0xAD, 0xBD, 0xCD, 0x5E, 0xBE, 0x54,
+ 0x45, 0x55, 0xB5, 0xC5, 0x76, 0x96, 0x67, 0x77, 0x97, 0xA7, 0x79, 0x99,
+ 0xA9, 0x7A, 0x9A, 0x4B, 0x5B, 0xBB, 0xCB, 0x5C, 0xBC
+};
+
+static const uint8_t huff_b07_cb[9] = { 3, 9, 3, 2, 4, 8, 23, 13, 10 };
+
+static const uint8_t huff_b07_xlat[63] = {
+ 0, 1, 63, 2, 62, 3, 4, 60, 61, 5, 6, 7, 8, 56, 57, 58,
+ 59, 9, 10, 11, 12, 25, 26, 27, 28, 29, 30, 31, 33, 34, 35, 36,
+ 37, 38, 39, 51, 52, 53, 54, 55, 13, 14, 15, 16, 17, 18, 19, 45,
+ 46, 47, 48, 49, 50, 20, 21, 22, 23, 24, 40, 41, 42, 43, 44
+};
+
+static const uint8_t huff_b12_cb[10] = { 3, 10, 1, 3, 12, 0, 30, 9, 18, 8 };
+
+static const uint8_t huff_b12_xlat[81] = {
+ 0x00, 0x40, 0x04, 0x01, 0x10, 0x50, 0x44, 0x14, 0x54, 0x41, 0x11, 0x51,
+ 0x05, 0x45, 0x15, 0x55, 0x80, 0x90, 0x20, 0x60, 0x84, 0x94, 0x24, 0x64,
+ 0x08, 0x48, 0x18, 0x81, 0x91, 0x61, 0x85, 0x95, 0x25, 0x65, 0x09, 0x49,
+ 0x19, 0x59, 0x02, 0x42, 0x12, 0x52, 0x06, 0x46, 0x16, 0x56, 0xA4, 0x58,
+ 0x68, 0x21, 0xA5, 0x29, 0x69, 0x1A, 0x5A, 0xA0, 0x88, 0x98, 0x28, 0xA1,
+ 0x89, 0x99, 0xA9, 0x92, 0x22, 0x62, 0x86, 0x96, 0x26, 0x66, 0x0A, 0x4A,
+ 0x6A, 0xA8, 0x82, 0xA2, 0xA6, 0x8A, 0x9A, 0x2A, 0xAA
+};
+
+static const uint8_t huff_b14_cb[14] = {
+ 1, 12, 1, 0, 0, 4, 0, 3, 5, 16, 28, 34, 26, 4
+};
+
+static const uint8_t huff_b14_xlat[121] = {
+ 0x00, 0x10, 0xF0, 0x01, 0x0F, 0xF1, 0x1F, 0xFF, 0x20, 0xE0, 0x11, 0x02,
+ 0x0E, 0x30, 0x50, 0xB0, 0xD0, 0x21, 0xE1, 0x12, 0xF2, 0x03, 0x05, 0x0B,
+ 0x0D, 0x1E, 0xFE, 0x2F, 0xEF, 0x40, 0xC0, 0x31, 0x51, 0xB1, 0xC1, 0xD1,
+ 0x22, 0x52, 0xE2, 0x13, 0xF3, 0x04, 0x15, 0xF5, 0x1B, 0xEB, 0xFB, 0x0C,
+ 0x1D, 0xFD, 0x2E, 0x5E, 0xEE, 0x3F, 0x5F, 0xBF, 0xDF, 0x41, 0x32, 0x42,
+ 0xB2, 0xD2, 0x23, 0x53, 0xB3, 0xE3, 0x14, 0x24, 0xE4, 0xF4, 0x25, 0x35,
+ 0xD5, 0xE5, 0x2B, 0x3B, 0xDB, 0x1C, 0x2C, 0xBC, 0xEC, 0xFC, 0x2D, 0xBD,
+ 0xED, 0x3E, 0x4E, 0xBE, 0xDE, 0x4F, 0xCF, 0xC2, 0x33, 0x43, 0xC3, 0xD3,
+ 0x34, 0x44, 0x54, 0xB4, 0xD4, 0x45, 0x55, 0xC5, 0x4B, 0xCB, 0x3C, 0x4C,
+ 0x5C, 0xCC, 0xDC, 0x3D, 0x4D, 0x5D, 0xCD, 0xDD, 0xCE, 0xC4, 0xB5, 0x5B,
+ 0xBB
+};
+
+static const uint8_t huff_b16_cb[11] = {
+ 4, 12, 4, 4, 9, 13, 37, 76, 72, 39, 2
+};
+
+static const uint8_t huff_b16_xlat[256] = {
+ 0x00, 0x10, 0x01, 0x11, 0x20, 0x21, 0x02, 0x12, 0x30, 0x31, 0x41, 0x22,
+ 0x32, 0x03, 0x13, 0x23, 0x14, 0x40, 0x51, 0x61, 0x42, 0x52, 0x33, 0x43,
+ 0x04, 0x24, 0x34, 0x15, 0x25, 0x16, 0x50, 0x60, 0x70, 0x71, 0x81, 0xD1,
+ 0xE1, 0x62, 0x72, 0x82, 0xD2, 0x53, 0x63, 0x73, 0xD3, 0x44, 0x54, 0x05,
+ 0x35, 0x45, 0x55, 0x06, 0x26, 0x36, 0x07, 0x17, 0x27, 0x37, 0x18, 0x28,
+ 0x19, 0x1D, 0x2D, 0x3D, 0x1E, 0x2E, 0x1F, 0x80, 0x90, 0xD0, 0xE0, 0xF0,
+ 0x91, 0xA1, 0xB1, 0xC1, 0xF1, 0x92, 0xA2, 0xB2, 0xC2, 0xE2, 0xF2, 0x83,
+ 0x93, 0xA3, 0xC3, 0xE3, 0xF3, 0x64, 0x74, 0x84, 0x94, 0xD4, 0xE4, 0xF4,
+ 0x65, 0x75, 0x85, 0xD5, 0xE5, 0x46, 0x56, 0x66, 0x76, 0xD6, 0xE6, 0x47,
+ 0x57, 0x67, 0xD7, 0x08, 0x38, 0x48, 0x58, 0x09, 0x29, 0x39, 0x49, 0x0A,
+ 0x1A, 0x2A, 0x3A, 0x1B, 0x2B, 0x0C, 0x1C, 0x2C, 0x3C, 0x0D, 0x4D, 0x5D,
+ 0x6D, 0x7D, 0x0E, 0x3E, 0x4E, 0x5E, 0x6E, 0x0F, 0x2F, 0x3F, 0x4F, 0xA0,
+ 0xB0, 0xC0, 0xB3, 0xA4, 0xB4, 0xC4, 0x95, 0xA5, 0xB5, 0xC5, 0xF5, 0x86,
+ 0x96, 0xA6, 0xB6, 0xC6, 0xF6, 0x77, 0x87, 0x97, 0xA7, 0xC7, 0xE7, 0xF7,
+ 0x68, 0x78, 0x88, 0x98, 0xD8, 0xE8, 0xF8, 0x59, 0x69, 0x79, 0x89, 0xD9,
+ 0xE9, 0xF9, 0x4A, 0x5A, 0x6A, 0x7A, 0xDA, 0xEA, 0x0B, 0x3B, 0x4B, 0x5B,
+ 0xDB, 0xEB, 0x4C, 0x5C, 0x6C, 0x7C, 0x8C, 0xDC, 0x8D, 0x9D, 0xAD, 0xBD,
+ 0xCD, 0x7E, 0x8E, 0x9E, 0xAE, 0xBE, 0x5F, 0x6F, 0x7F, 0x8F, 0x9F, 0xB7,
+ 0xA8, 0xB8, 0xC8, 0x99, 0xA9, 0xB9, 0xC9, 0x8A, 0x9A, 0xAA, 0xBA, 0xCA,
+ 0xFA, 0x6B, 0x7B, 0x8B, 0x9B, 0xAB, 0xBB, 0xCB, 0xFB, 0x9C, 0xAC, 0xBC,
+ 0xCC, 0xEC, 0xFC, 0xDD, 0xED, 0xFD, 0xCE, 0xDE, 0xEE, 0xFE, 0xAF, 0xBF,
+ 0xCF, 0xDF, 0xEF, 0xFF
+};
+
+static const uint8_t huff_b26_cb[12] = {
+ 3, 12, 2, 2, 4, 5, 11, 26, 67, 78, 51, 10
+};
+
+static const uint8_t huff_b26_xlat[256] = {
+ 0x00, 0x01, 0x10, 0x11, 0x20, 0x21, 0x02, 0x12, 0x30, 0x31, 0x22, 0x03,
+ 0x13, 0x40, 0x41, 0x51, 0x32, 0x42, 0x23, 0x33, 0x04, 0x14, 0x24, 0x15,
+ 0x50, 0x61, 0x71, 0xD1, 0xE1, 0x52, 0x62, 0xD2, 0x43, 0x53, 0xD3, 0x34,
+ 0x44, 0x05, 0x25, 0x35, 0x06, 0x16, 0x26, 0x17, 0x18, 0x1D, 0x2D, 0x3D,
+ 0x1E, 0x2E, 0x60, 0x70, 0x80, 0xD0, 0xE0, 0xF0, 0x81, 0x91, 0xA1, 0xC1,
+ 0xF1, 0x72, 0x82, 0x92, 0xC2, 0xE2, 0xF2, 0x63, 0x73, 0xE3, 0xF3, 0x54,
+ 0x64, 0x74, 0xD4, 0xE4, 0xF4, 0x45, 0x55, 0x65, 0xD5, 0xE5, 0xF5, 0x36,
+ 0x46, 0x56, 0xD6, 0xE6, 0x07, 0x27, 0x37, 0x47, 0xD7, 0x08, 0x28, 0x38,
+ 0x19, 0x29, 0x1A, 0x1B, 0x1C, 0x2C, 0x0D, 0x4D, 0x5D, 0x6D, 0x7D, 0x0E,
+ 0x3E, 0x4E, 0x5E, 0x6E, 0x0F, 0x1F, 0x2F, 0x3F, 0x4F, 0x90, 0xA0, 0xC0,
+ 0xB1, 0xA2, 0xB2, 0x83, 0x93, 0xA3, 0xB3, 0xC3, 0x84, 0x94, 0xA4, 0xC4,
+ 0x75, 0x85, 0x95, 0xC5, 0x66, 0x76, 0x86, 0x96, 0xC6, 0xF6, 0x57, 0x67,
+ 0x77, 0xE7, 0xF7, 0x48, 0x58, 0x68, 0x78, 0xD8, 0xE8, 0xF8, 0x09, 0x39,
+ 0x49, 0x59, 0xD9, 0xE9, 0xF9, 0x0A, 0x2A, 0x3A, 0x4A, 0xDA, 0xEA, 0x0B,
+ 0x2B, 0x3B, 0xDB, 0xEB, 0x0C, 0x3C, 0x4C, 0x5C, 0x6C, 0xDC, 0x8D, 0x9D,
+ 0xAD, 0xBD, 0xCD, 0x7E, 0x8E, 0x9E, 0xAE, 0xBE, 0xCE, 0x5F, 0x6F, 0x7F,
+ 0x8F, 0x9F, 0xAF, 0xB0, 0xB4, 0xA5, 0xB5, 0xA6, 0xB6, 0x87, 0x97, 0xA7,
+ 0xB7, 0xC7, 0x88, 0x98, 0xA8, 0xC8, 0x69, 0x79, 0x89, 0x99, 0xA9, 0xC9,
+ 0x5A, 0x6A, 0x7A, 0x9A, 0xCA, 0xFA, 0x4B, 0x5B, 0x6B, 0x7B, 0xCB, 0xFB,
+ 0x7C, 0x8C, 0x9C, 0xAC, 0xBC, 0xCC, 0xEC, 0xFC, 0xDD, 0xED, 0xFD, 0xDE,
+ 0xEE, 0xFE, 0xBF, 0xCF, 0xDF, 0xEF, 0xB8, 0xB9, 0x8A, 0xAA, 0xBA, 0x8B,
+ 0x9B, 0xAB, 0xBB, 0xFF
+};
+
+static const uint8_t huff_b32_cb[12] = {
+ 2, 11, 1, 0, 4, 6, 7, 10, 22, 11, 16, 4
+};
+
+static const uint8_t huff_b32_xlat[81] = {
+ 0x00, 0x40, 0x10, 0x04, 0x01, 0x50, 0x44, 0x14, 0x41, 0x11, 0x05, 0x80,
+ 0x54, 0x51, 0x45, 0x15, 0x55, 0x02, 0x90, 0x20, 0x60, 0x84, 0x24, 0x08,
+ 0x18, 0x09, 0x12, 0x06, 0xA0, 0x94, 0x64, 0x48, 0x58, 0x81, 0x91, 0x21,
+ 0x61, 0x85, 0x95, 0x25, 0x65, 0x49, 0x19, 0x59, 0x42, 0x52, 0x46, 0x16,
+ 0x56, 0x0A, 0xA4, 0x28, 0x68, 0xA1, 0xA5, 0x29, 0x69, 0x26, 0x4A, 0x1A,
+ 0x5A, 0x88, 0x98, 0xA8, 0x89, 0x99, 0xA9, 0x82, 0x92, 0x22, 0x62, 0x86,
+ 0x96, 0x66, 0x9A, 0x2A, 0x6A, 0xA2, 0xA6, 0x8A, 0xAA
+};
+
+static const uint8_t huff_b33_cb[13] = {
+ 2, 12, 1, 0, 0, 4, 11, 8, 28, 92, 97, 13, 2
+};
+
+static const uint8_t huff_b33_xlat[256] = {
+ 0x00, 0x40, 0x10, 0x04, 0x01, 0x50, 0x44, 0x14, 0x54, 0x41, 0x11, 0x51,
+ 0x05, 0x45, 0x15, 0x55, 0x20, 0x95, 0x65, 0x49, 0x59, 0x52, 0x46, 0x16,
+ 0x80, 0x90, 0x60, 0x84, 0x94, 0x24, 0x64, 0xA4, 0x08, 0x48, 0x18, 0x58,
+ 0x81, 0x91, 0x21, 0x61, 0x85, 0x25, 0x09, 0x19, 0x69, 0x02, 0x42, 0x12,
+ 0x06, 0x56, 0x5A, 0x57, 0xD0, 0x74, 0x68, 0x5C, 0xC1, 0xD5, 0xA5, 0xE5,
+ 0x75, 0xB5, 0xF5, 0x99, 0xD9, 0xA9, 0xE9, 0x79, 0xB9, 0xF9, 0x1D, 0x5D,
+ 0x9D, 0xDD, 0x6D, 0xAD, 0xED, 0x7D, 0xBD, 0xFD, 0x82, 0x92, 0xD2, 0x62,
+ 0x96, 0xD6, 0x26, 0x66, 0xA6, 0xE6, 0x76, 0xB6, 0xF6, 0x0A, 0x4A, 0x1A,
+ 0x9A, 0xDA, 0x2A, 0x6A, 0xAA, 0xEA, 0x7A, 0xBA, 0xFA, 0x5E, 0x9E, 0xDE,
+ 0x6E, 0xAE, 0xEE, 0x7E, 0xBE, 0xFE, 0x03, 0x13, 0x53, 0x17, 0x97, 0xD7,
+ 0x67, 0xA7, 0xE7, 0x77, 0xB7, 0xF7, 0x5B, 0x9B, 0xDB, 0x6B, 0xAB, 0xEB,
+ 0x7B, 0xBB, 0xFB, 0x5F, 0x9F, 0xDF, 0x6F, 0xAF, 0xEF, 0x7F, 0xBF, 0xFF,
+ 0xC0, 0xA0, 0xE0, 0x30, 0xC4, 0xD4, 0xE4, 0x34, 0xB4, 0xF4, 0x88, 0xC8,
+ 0x98, 0xD8, 0x28, 0xA8, 0xE8, 0x38, 0x78, 0xB8, 0xF8, 0x0C, 0x4C, 0x1C,
+ 0x9C, 0xDC, 0x6C, 0xAC, 0xEC, 0x7C, 0xBC, 0xFC, 0xD1, 0xA1, 0xE1, 0x31,
+ 0x71, 0xB1, 0xF1, 0xC5, 0x35, 0x89, 0xC9, 0x29, 0x39, 0x0D, 0x4D, 0x8D,
+ 0xCD, 0x2D, 0x3D, 0x22, 0xA2, 0xE2, 0x72, 0xB2, 0xF2, 0x86, 0xC6, 0x36,
+ 0x8A, 0xCA, 0x3A, 0x0E, 0x4E, 0x8E, 0xCE, 0x1E, 0x2E, 0x3E, 0x43, 0x83,
+ 0x93, 0xD3, 0x23, 0x63, 0xA3, 0xE3, 0x73, 0xB3, 0xF3, 0x07, 0x47, 0x87,
+ 0xC7, 0x27, 0x37, 0x4B, 0x8B, 0xCB, 0x1B, 0x2B, 0x3B, 0x4F, 0x8F, 0xCF,
+ 0x1F, 0x70, 0xB0, 0xF0, 0x8C, 0xCC, 0x2C, 0x3C, 0xC2, 0x32, 0xC3, 0x0F,
+ 0x2F, 0x3F, 0x33, 0x0B
+};
+
+static const uint8_t huff_b35_cb[14] = {
+ 1, 12, 1, 0, 0, 0, 4, 6, 6, 14, 42, 63, 59, 30
+};
+
+static const uint8_t huff_b35_xlat[225] = {
+ 0x00, 0x10, 0xF0, 0x01, 0x0F, 0x11, 0xF1, 0x02, 0x0E, 0x1F, 0xFF, 0x20,
+ 0xE0, 0x21, 0xF2, 0xFE, 0xEF, 0x30, 0xD0, 0xE1, 0x12, 0x22, 0xE2, 0x03,
+ 0x0D, 0x1D, 0x1E, 0x2E, 0xEE, 0x2F, 0xDF, 0x40, 0x60, 0x70, 0x90, 0xA0,
+ 0xB0, 0xC0, 0x31, 0x71, 0x91, 0xC1, 0xD1, 0x32, 0xD2, 0x13, 0xE3, 0xF3,
+ 0x04, 0x05, 0x06, 0x07, 0x17, 0xF7, 0x09, 0x19, 0x0A, 0x1A, 0xFA, 0x0C,
+ 0x1C, 0x2D, 0xED, 0xFD, 0x3E, 0x7E, 0xDE, 0x3F, 0x6F, 0x7F, 0x9F, 0xAF,
+ 0xCF, 0x50, 0x41, 0x51, 0x61, 0xA1, 0xB1, 0x62, 0x72, 0x92, 0xA2, 0xC2,
+ 0x23, 0x33, 0x63, 0x73, 0x93, 0xA3, 0xD3, 0x14, 0x24, 0x34, 0xD4, 0xE4,
+ 0xF4, 0x15, 0xF5, 0x16, 0x26, 0xD6, 0xE6, 0xF6, 0x27, 0x37, 0x47, 0xE7,
+ 0x29, 0x39, 0xC9, 0xD9, 0xE9, 0xF9, 0x2A, 0xEA, 0x0B, 0x1B, 0xFB, 0x2C,
+ 0x7C, 0xEC, 0xFC, 0x3D, 0x4D, 0x6D, 0x7D, 0xDD, 0x4E, 0x5E, 0x6E, 0x9E,
+ 0xAE, 0xCE, 0x4F, 0x5F, 0x42, 0x52, 0xB2, 0x43, 0xB3, 0xC3, 0x44, 0x64,
+ 0x74, 0x94, 0xA4, 0x25, 0x35, 0x65, 0x75, 0x95, 0xA5, 0xE5, 0x36, 0x46,
+ 0x66, 0x76, 0x96, 0xA6, 0xB6, 0xC6, 0x57, 0xA7, 0xB7, 0xC7, 0xD7, 0x59,
+ 0xA9, 0xB9, 0x3A, 0x4A, 0x6A, 0xCA, 0xDA, 0x2B, 0x3B, 0x6B, 0x9B, 0xAB,
+ 0xDB, 0xEB, 0x3C, 0x6C, 0x9C, 0xAC, 0xCC, 0xDC, 0x5D, 0x9D, 0xAD, 0xBD,
+ 0xCD, 0xBE, 0xBF, 0x53, 0x54, 0xB4, 0xC4, 0x45, 0x55, 0xB5, 0xC5, 0xD5,
+ 0x56, 0x67, 0x77, 0x97, 0x49, 0x69, 0x79, 0x99, 0x5A, 0x7A, 0x9A, 0xAA,
+ 0xBA, 0x4B, 0x5B, 0x7B, 0xBB, 0xCB, 0x4C, 0x5C, 0xBC
+};
+
+static const uint8_t huff_b37_cb[13] = {
+ 1, 11, 1, 0, 2, 0, 2, 2, 6, 17, 14, 13, 6
+};
+
+static const uint8_t huff_b37_xlat[63] = {
+ 0, 1, 63, 2, 62, 3, 61, 4, 5, 6, 58, 59, 60, 7, 8, 9,
+ 10, 25, 26, 27, 28, 29, 34, 35, 37, 38, 39, 55, 56, 57, 11, 13,
+ 14, 15, 30, 31, 33, 36, 49, 50, 51, 52, 53, 54, 12, 16, 17, 18,
+ 19, 21, 41, 43, 44, 45, 46, 47, 48, 20, 22, 23, 24, 40, 42
+};
+
+static const uint8_t huff_b41_cb[14] = {
+ 1, 12, 1, 0, 0, 1, 7, 0, 20, 4, 10, 24, 2, 12
+};
+
+static const uint8_t huff_b41_xlat[81] = {
+ 0x00, 0x01, 0x40, 0xC0, 0x10, 0x30, 0x04, 0x0C, 0x03, 0x50, 0xD0, 0x70,
+ 0xF0, 0xC4, 0x14, 0x34, 0x4C, 0x1C, 0x3C, 0xC1, 0x11, 0x31, 0x05, 0x0D,
+ 0xC3, 0x13, 0x33, 0x07, 0x0F, 0x44, 0xCC, 0x41, 0x43, 0x54, 0x74, 0xDC,
+ 0xFC, 0x71, 0x15, 0x4D, 0x1D, 0x37, 0x3F, 0xD4, 0xF4, 0x5C, 0x7C, 0x51,
+ 0xD1, 0xF1, 0x45, 0xC5, 0x35, 0xCD, 0xDD, 0x3D, 0x53, 0xD3, 0x73, 0xF3,
+ 0x47, 0xC7, 0x17, 0x77, 0x4F, 0xCF, 0x1F, 0x55, 0xFF, 0xD5, 0x75, 0xF5,
+ 0x5D, 0x7D, 0xFD, 0x57, 0xD7, 0xF7, 0x5F, 0xDF, 0x7F
+};
+
+static const uint8_t huff_b42_cb[11] = { 1, 9, 1, 0, 1, 3, 2, 3, 7, 4, 4 };
+
+static const uint8_t huff_b42_xlat[25] = {
+ 0x00, 0x07, 0x08, 0x38, 0x01, 0x39, 0x0F, 0x10, 0x09, 0x3F, 0x30, 0x31,
+ 0x02, 0x3A, 0x06, 0x0E, 0x17, 0x11, 0x0A, 0x3E, 0x37, 0x12, 0x32, 0x16,
+ 0x36
+};
+
+static const uint8_t huff_b43_cb[10] = { 2, 9, 1, 1, 3, 4, 9, 15, 12, 4 };
+
+static const uint8_t huff_b43_xlat[49] = {
+ 0x00, 0x07, 0x08, 0x38, 0x01, 0x09, 0x39, 0x0F, 0x3F, 0x10, 0x30, 0x31,
+ 0x02, 0x3A, 0x06, 0x0E, 0x17, 0x37, 0x18, 0x28, 0x11, 0x19, 0x29, 0x0A,
+ 0x03, 0x0B, 0x3B, 0x05, 0x0D, 0x3D, 0x3E, 0x1F, 0x2F, 0x12, 0x1A, 0x2A,
+ 0x32, 0x13, 0x33, 0x15, 0x35, 0x16, 0x1E, 0x2E, 0x36, 0x1B, 0x2B, 0x1D,
+ 0x2D
+};
+
+static const uint8_t huff_b47_cb[10] = { 2, 9, 1, 1, 3, 4, 6, 14, 22, 12 };
+
+static const uint8_t huff_b47_xlat[63] = {
+ 0, 1, 2, 62, 63, 3, 4, 60, 61, 5, 6, 7, 57, 58, 59, 8,
+ 9, 10, 11, 12, 26, 27, 37, 38, 52, 53, 54, 55, 56, 13, 14, 15,
+ 16, 17, 18, 25, 28, 29, 30, 31, 33, 34, 35, 36, 39, 46, 47, 48,
+ 49, 50, 51, 19, 20, 21, 22, 23, 24, 40, 41, 42, 43, 44, 45
+};
+
+static const uint8_t huff_b52_cb[11] = { 1, 9, 1, 0, 1, 3, 2, 3, 7, 4, 4 };
+
+static const uint8_t huff_b52_xlat[25] = {
+ 0x00, 0x01, 0x08, 0x38, 0x07, 0x39, 0x0F, 0x30, 0x09, 0x3F, 0x10, 0x31,
+ 0x02, 0x3A, 0x06, 0x0E, 0x17, 0x11, 0x0A, 0x3E, 0x37, 0x12, 0x32, 0x16,
+ 0x36
+};
+
+static const uint8_t huff_b53_cb[7] = { 1, 5, 1, 1, 1, 0, 4 }; // same as b63!!!
+
+static const uint8_t huff_b53_xlat[7] = { 0, 7, 1, 2, 3, 5, 6 };
+
+static const uint8_t huff_b56_cb[11] = { 1, 9, 1, 0, 2, 0, 2, 4, 11, 9, 2 };
+
+static const uint8_t huff_b56_xlat[31] = {
+ 0, 1, 31, 2, 30, 3, 4, 13, 29, 5, 6, 7, 14, 15, 17, 18,
+ 19, 26, 27, 28, 8, 9, 12, 20, 21, 22, 23, 24, 25, 10, 11
+};
+
+static const uint8_t huff_b62_cb[14] = {
+ 1, 12, 1, 0, 0, 2, 3, 5, 12, 14, 18, 15, 9, 2
+};
+
+static const uint8_t huff_b62_xlat[81] = {
+ 0x00, 0x40, 0x01, 0x10, 0x04, 0x02, 0x80, 0x50, 0x90, 0x05, 0x06, 0x20,
+ 0x60, 0x44, 0x14, 0x54, 0x24, 0x08, 0x18, 0x41, 0x11, 0x15, 0x09, 0xA0,
+ 0x84, 0x94, 0x64, 0xA4, 0x28, 0x51, 0x45, 0x55, 0x19, 0x12, 0x16, 0x0A,
+ 0x1A, 0x48, 0x58, 0x68, 0x81, 0x91, 0x21, 0x61, 0x85, 0x95, 0x25, 0x65,
+ 0x49, 0x59, 0x29, 0x69, 0x42, 0x46, 0x56, 0x88, 0x98, 0xA8, 0xA1, 0xA5,
+ 0x99, 0xA9, 0x52, 0x22, 0x26, 0x66, 0x4A, 0x5A, 0x2A, 0x6A, 0x89, 0x82,
+ 0x92, 0x62, 0x86, 0x96, 0xA6, 0x8A, 0xAA, 0xA2, 0x9A
+};
+
+static const uint8_t huff_b63_cb[7] = { 1, 5, 1, 1, 1, 0, 4 };
+
+static const uint8_t huff_b63_xlat[7] = { 0, 1, 7, 2, 3, 5, 6 };
+
+static const uint8_t huff_b64_cb[7] = { 1, 5, 1, 1, 1, 1, 2 };
+
+static const uint8_t huff_b64_xlat[6] = { 1, 0, 2, 5, 3, 4 };
+
+static const uint8_t huff_b65_cb[14] = {
+ 1, 12, 1, 0, 0, 2, 2, 2, 6, 12, 34, 92, 54, 20
+};
+
+static const uint8_t huff_b65_xlat[225] = {
+ 0x00, 0xF0, 0x01, 0x10, 0x0F, 0x11, 0xF1, 0x20, 0xE0, 0x02, 0x0E, 0x1F,
+ 0xFF, 0xD0, 0x21, 0xE1, 0x12, 0xF2, 0x07, 0x0A, 0x0D, 0x1E, 0xFE, 0x2F,
+ 0xEF, 0x30, 0x70, 0x90, 0xA0, 0xC0, 0x71, 0x91, 0xC1, 0xD1, 0x32, 0x92,
+ 0xE2, 0x03, 0x13, 0x63, 0x04, 0x06, 0xE6, 0xE7, 0xF7, 0x09, 0x19, 0x39,
+ 0xFA, 0x0C, 0x1C, 0xDD, 0xED, 0xFD, 0x2E, 0x7E, 0x9E, 0x3F, 0x9F, 0x40,
+ 0x50, 0x60, 0xB0, 0x31, 0x41, 0x61, 0xA1, 0xB1, 0x22, 0x42, 0x72, 0xA2,
+ 0xB2, 0xC2, 0xD2, 0x23, 0x33, 0x73, 0xA3, 0xC3, 0xD3, 0xE3, 0xF3, 0x14,
+ 0x24, 0x34, 0x44, 0x74, 0xD4, 0xE4, 0x05, 0x25, 0x45, 0x65, 0x95, 0xA5,
+ 0x16, 0x26, 0x46, 0x76, 0xA6, 0xB6, 0xC6, 0xD6, 0xF6, 0x17, 0x27, 0x37,
+ 0x47, 0x67, 0xA7, 0xD7, 0x29, 0x69, 0xB9, 0xD9, 0xE9, 0xF9, 0x1A, 0x2A,
+ 0x3A, 0x9A, 0xCA, 0xDA, 0xEA, 0x0B, 0x1B, 0x3B, 0x6B, 0xEB, 0xFB, 0x2C,
+ 0x6C, 0xEC, 0xFC, 0x1D, 0x2D, 0x4D, 0x6D, 0x9D, 0xAD, 0x3E, 0x4E, 0x6E,
+ 0xAE, 0xCE, 0xEE, 0x4F, 0x5F, 0x6F, 0xDF, 0x51, 0x52, 0x62, 0x43, 0x93,
+ 0xB3, 0x54, 0x94, 0xA4, 0xF4, 0x15, 0x75, 0xB5, 0xE5, 0xF5, 0x36, 0x56,
+ 0x66, 0x96, 0x57, 0x77, 0x49, 0x59, 0xA9, 0xC9, 0x4A, 0x5A, 0x6A, 0x7A,
+ 0xAA, 0xBA, 0x2B, 0x4B, 0x7B, 0x9B, 0xAB, 0xDB, 0x3C, 0x4C, 0x7C, 0x9C,
+ 0xAC, 0xBC, 0xCC, 0x3D, 0x5D, 0x7D, 0xBD, 0xCD, 0x5E, 0xBE, 0xDE, 0xBF,
+ 0xCF, 0x53, 0x64, 0xB4, 0xC4, 0x35, 0x55, 0xC5, 0xD5, 0x97, 0xB7, 0xC7,
+ 0x79, 0x99, 0x5B, 0xBB, 0xCB, 0x5C, 0xDC, 0x7F, 0xAF
+};
+
+static const uint8_t huff_b66_cb[14] = {
+ 1, 12, 1, 0, 0, 3, 0, 3, 3, 10, 40, 85, 61, 50
+};
+
+static const uint8_t huff_b66_xlat[256] = {
+ 0x00, 0x10, 0x01, 0x11, 0x21, 0x02, 0x12, 0x20, 0x22, 0x13, 0x30, 0x31,
+ 0x41, 0xD1, 0xE1, 0x32, 0x52, 0x03, 0x23, 0x2D, 0x40, 0x50, 0x60, 0x80,
+ 0xD0, 0xE0, 0x51, 0x61, 0xF1, 0x42, 0x62, 0xD2, 0xE2, 0xF2, 0x33, 0x43,
+ 0xC3, 0xD3, 0xE3, 0x04, 0x14, 0xD4, 0xF4, 0x25, 0x35, 0x16, 0x17, 0xF7,
+ 0xD8, 0x1C, 0x3C, 0x0D, 0x1D, 0x3D, 0x5D, 0x0E, 0x1E, 0x2E, 0x7E, 0x2F,
+ 0xC0, 0xF0, 0x71, 0x81, 0x91, 0xC1, 0x72, 0x82, 0x92, 0xB2, 0xC2, 0x53,
+ 0x63, 0x73, 0x93, 0xA3, 0xF3, 0x24, 0x44, 0x64, 0x84, 0xA4, 0xB4, 0x05,
+ 0x15, 0x95, 0xD5, 0x06, 0x26, 0x36, 0x46, 0x96, 0xD6, 0xE6, 0xF6, 0x07,
+ 0x27, 0x37, 0xD7, 0xE7, 0x08, 0x18, 0x28, 0x38, 0xE8, 0xF8, 0x09, 0x19,
+ 0x29, 0xE9, 0xF9, 0x0A, 0x1A, 0xCA, 0xDA, 0xEA, 0x0B, 0x1B, 0xDB, 0xEB,
+ 0xFB, 0x2C, 0x4C, 0x5C, 0x7C, 0x8C, 0x4D, 0x6D, 0x8D, 0x9D, 0xFD, 0x3E,
+ 0x5E, 0x6E, 0x8E, 0x9E, 0xEE, 0x0F, 0x1F, 0x3F, 0x4F, 0x5F, 0x6F, 0x7F,
+ 0xCF, 0x70, 0xA1, 0xA2, 0x83, 0xB3, 0x34, 0x74, 0xC4, 0xE4, 0x55, 0x65,
+ 0x85, 0xA5, 0xC5, 0xE5, 0xF5, 0x56, 0x66, 0x76, 0x86, 0xA6, 0xC6, 0x57,
+ 0x67, 0x77, 0x97, 0xA7, 0x48, 0x88, 0x98, 0x49, 0x59, 0x79, 0x99, 0x3A,
+ 0x4A, 0x8A, 0xBA, 0xFA, 0x2B, 0x7B, 0x0C, 0xAC, 0xBC, 0xCC, 0xEC, 0x7D,
+ 0xAD, 0xBD, 0xDD, 0x4E, 0xBE, 0xCE, 0xFE, 0x8F, 0x9F, 0xAF, 0xBF, 0xDF,
+ 0xEF, 0xFF, 0x90, 0xA0, 0xB0, 0xB1, 0x54, 0x94, 0x45, 0x75, 0xB5, 0xB6,
+ 0x47, 0x87, 0xB7, 0xC7, 0x58, 0x68, 0x78, 0xA8, 0xB8, 0xC8, 0x39, 0x69,
+ 0x89, 0xA9, 0xB9, 0xC9, 0xD9, 0x2A, 0x5A, 0x6A, 0x7A, 0x9A, 0xAA, 0x3B,
+ 0x4B, 0x5B, 0x6B, 0x8B, 0x9B, 0xAB, 0xBB, 0xCB, 0x6C, 0x9C, 0xDC, 0xFC,
+ 0xCD, 0xED, 0xAE, 0xDE
+};
+
+static const uint8_t huff_b67_cb[10] = { 2, 9, 1, 2, 1, 4, 7, 10, 26, 12 };
+
+static const uint8_t huff_b67_xlat[63] = {
+ 0, 1, 63, 62, 2, 3, 60, 61, 4, 5, 6, 7, 57, 58, 59, 8,
+ 9, 10, 11, 12, 52, 53, 54, 55, 56, 13, 14, 15, 16, 17, 18, 25,
+ 26, 27, 28, 29, 30, 31, 33, 34, 35, 36, 37, 38, 39, 46, 47, 48,
+ 49, 50, 51, 19, 20, 21, 22, 23, 24, 40, 41, 42, 43, 44, 45
+};
+
+static const uint8_t huff_b71_cb[14] = {
+ 1, 12, 1, 0, 0, 1, 7, 0, 19, 5, 13, 23, 0, 12
+};
+
+static const uint8_t huff_b71_xlat[81] = {
+ 0x00, 0x03, 0x40, 0xC0, 0x10, 0x30, 0x04, 0x0C, 0x01, 0x50, 0xD0, 0x70,
+ 0xF0, 0xC4, 0x14, 0x34, 0x4C, 0x1C, 0x3C, 0xC1, 0x11, 0x31, 0x05, 0x0D,
+ 0x13, 0x33, 0x07, 0x0F, 0x44, 0xCC, 0x41, 0x43, 0xC3, 0x54, 0x74, 0xDC,
+ 0xFC, 0xF1, 0xC5, 0x15, 0x1D, 0x53, 0xC7, 0x37, 0x4F, 0x3F, 0xD4, 0xF4,
+ 0x5C, 0x7C, 0x51, 0xD1, 0x71, 0x45, 0x55, 0x35, 0x4D, 0xCD, 0xDD, 0x3D,
+ 0xD3, 0x73, 0xF3, 0x47, 0x17, 0x77, 0xCF, 0x1F, 0xFF, 0xD5, 0x75, 0xF5,
+ 0x5D, 0x7D, 0xFD, 0x57, 0xD7, 0xF7, 0x5F, 0xDF, 0x7F
+};
+
+static const uint8_t huff_b73_cb[13] = {
+ 1, 11, 1, 0, 0, 0, 1, 4, 9, 4, 103, 110, 24
+};
+
+static const uint8_t huff_b73_xlat[256] = {
+ 0x00, 0x40, 0x10, 0x04, 0x01, 0x05, 0x50, 0x14, 0x54, 0x41, 0x11, 0x51,
+ 0x45, 0x15, 0x55, 0x44, 0x95, 0x6A, 0x03, 0x80, 0xC0, 0x90, 0xD0, 0x94,
+ 0xD4, 0x24, 0x64, 0x58, 0x91, 0xA1, 0x85, 0xD5, 0x25, 0x65, 0xA5, 0xE5,
+ 0x75, 0xB5, 0xF5, 0x19, 0x59, 0x99, 0xD9, 0x69, 0xA9, 0xE9, 0x79, 0xB9,
+ 0xF9, 0x4D, 0x5D, 0x9D, 0xDD, 0x6D, 0xAD, 0xED, 0x7D, 0xBD, 0xFD, 0x02,
+ 0x42, 0x52, 0x06, 0x46, 0x16, 0x56, 0x96, 0xD6, 0x26, 0x66, 0xA6, 0xE6,
+ 0x76, 0xB6, 0xF6, 0x1A, 0x5A, 0x9A, 0xDA, 0xAA, 0xEA, 0x7A, 0xBA, 0xFA,
+ 0x5E, 0x9E, 0xDE, 0x6E, 0xAE, 0xEE, 0x7E, 0xBE, 0xFE, 0x07, 0x47, 0x57,
+ 0x97, 0xD7, 0x67, 0xA7, 0xE7, 0x77, 0xB7, 0xF7, 0x5B, 0x9B, 0xDB, 0x6B,
+ 0xAB, 0xEB, 0x7B, 0xBB, 0xFB, 0x5F, 0x9F, 0xDF, 0x6F, 0xAF, 0xEF, 0x7F,
+ 0xBF, 0xFF, 0x20, 0x60, 0x70, 0xB0, 0xF0, 0x84, 0xC4, 0xA4, 0xE4, 0x74,
+ 0xB4, 0xF4, 0x08, 0x88, 0x18, 0x98, 0xD8, 0x68, 0xA8, 0xE8, 0x78, 0xB8,
+ 0xF8, 0x1C, 0x5C, 0x9C, 0xDC, 0x6C, 0xAC, 0xEC, 0x3C, 0x7C, 0xBC, 0xFC,
+ 0x81, 0xD1, 0x21, 0x61, 0xE1, 0x71, 0xB1, 0xF1, 0xC5, 0x35, 0x09, 0x49,
+ 0x89, 0xC9, 0x29, 0x39, 0x0D, 0x8D, 0xCD, 0x1D, 0x2D, 0x3D, 0x92, 0xD2,
+ 0x22, 0x62, 0xA2, 0xE2, 0x72, 0xB2, 0xF2, 0x86, 0xC6, 0x36, 0x0A, 0x4A,
+ 0x8A, 0xCA, 0x2A, 0x3A, 0x0E, 0x4E, 0x8E, 0xCE, 0x1E, 0x2E, 0x3E, 0x13,
+ 0x53, 0x93, 0xD3, 0x63, 0xA3, 0xE3, 0x73, 0xB3, 0xF3, 0x87, 0xC7, 0x17,
+ 0x27, 0x37, 0x0B, 0x4B, 0x8B, 0xCB, 0x1B, 0x2B, 0x3B, 0x0F, 0x4F, 0x8F,
+ 0xCF, 0x1F, 0x2F, 0x3F, 0xA0, 0xE0, 0x30, 0x34, 0x48, 0xC8, 0x28, 0x38,
+ 0x0C, 0x4C, 0x8C, 0xCC, 0x2C, 0xC1, 0x31, 0x82, 0xC2, 0x12, 0x32, 0x43,
+ 0x83, 0xC3, 0x23, 0x33
+};
+
+static const uint8_t huff_b74_cb[8] = { 1, 6, 1, 0, 2, 2, 2, 4 };
+
+static const uint8_t huff_b74_xlat[11] = {
+ 0, 1, 15, 2, 14, 5, 13, 3, 4, 11, 12
+};
+
+static const uint8_t huff_b75_cb[13] = {
+ 2, 12, 1, 4, 0, 0, 0, 8, 11, 24, 53, 64, 60
+};
+
+static const uint8_t huff_b75_xlat[225] = {
+ 0x00, 0x10, 0xF0, 0x01, 0x0F, 0x20, 0xE0, 0x11, 0xF1, 0x02, 0x0E, 0x1F,
+ 0xFF, 0xD0, 0x21, 0xE1, 0x12, 0xF2, 0x03, 0x0D, 0x1E, 0xFE, 0x2F, 0xEF,
+ 0x30, 0x40, 0x60, 0x70, 0x90, 0xA0, 0xC0, 0x31, 0xD1, 0x22, 0xE2, 0x13,
+ 0xF3, 0x04, 0x06, 0x07, 0x09, 0x0C, 0x1D, 0xFD, 0x2E, 0xEE, 0x3F, 0xDF,
+ 0x50, 0xB0, 0x41, 0x61, 0x71, 0x91, 0xA1, 0xC1, 0x32, 0x62, 0x72, 0x92,
+ 0xA2, 0xD2, 0x23, 0xD3, 0xE3, 0x14, 0xF4, 0x05, 0x16, 0x26, 0xE6, 0xF6,
+ 0x17, 0x27, 0xE7, 0xF7, 0x19, 0x29, 0xF9, 0x0A, 0x1A, 0x2A, 0xFA, 0x0B,
+ 0x1C, 0x2C, 0xFC, 0x2D, 0x3D, 0xED, 0x3E, 0x4E, 0x7E, 0x9E, 0xDE, 0x4F,
+ 0x6F, 0x7F, 0x9F, 0xAF, 0xCF, 0x51, 0xB1, 0x42, 0x52, 0xB2, 0xC2, 0x33,
+ 0x63, 0x73, 0x93, 0xA3, 0xB3, 0xC3, 0x24, 0x34, 0x74, 0xA4, 0xD4, 0xE4,
+ 0x15, 0x25, 0x65, 0x95, 0xE5, 0xF5, 0x36, 0xD6, 0x37, 0x47, 0xC7, 0xD7,
+ 0x39, 0x59, 0xB9, 0xC9, 0xD9, 0xE9, 0x3A, 0x6A, 0xDA, 0xEA, 0x1B, 0x2B,
+ 0x9B, 0xAB, 0xEB, 0xFB, 0x6C, 0x7C, 0x9C, 0xAC, 0xEC, 0x4D, 0x6D, 0x7D,
+ 0x9D, 0xAD, 0xBD, 0xDD, 0x5E, 0x6E, 0xAE, 0xCE, 0x5F, 0x43, 0x53, 0x44,
+ 0x54, 0x64, 0x94, 0xB4, 0xC4, 0x35, 0x45, 0x55, 0x75, 0xA5, 0xB5, 0xC5,
+ 0xD5, 0x46, 0x56, 0x66, 0x76, 0x96, 0xA6, 0xB6, 0xC6, 0x57, 0x67, 0x77,
+ 0x97, 0xA7, 0xB7, 0x49, 0x69, 0x79, 0x99, 0xA9, 0x4A, 0x5A, 0x7A, 0x9A,
+ 0xAA, 0xBA, 0xCA, 0x3B, 0x4B, 0x5B, 0x6B, 0x7B, 0xBB, 0xCB, 0xDB, 0x3C,
+ 0x4C, 0x5C, 0xBC, 0xCC, 0xDC, 0x5D, 0xCD, 0xBE, 0xBF
+};
+
+static const uint8_t huff_b77_cb[12] = {
+ 2, 11, 1, 0, 4, 6, 10, 12, 7, 15, 4, 4
+};
+
+static const uint8_t huff_b77_xlat[63] = {
+ 0, 1, 2, 62, 63, 3, 4, 5, 59, 60, 61, 6, 7, 8, 9, 10,
+ 54, 55, 56, 57, 58, 11, 12, 13, 14, 15, 16, 47, 49, 50, 51, 52,
+ 53, 17, 18, 19, 20, 45, 46, 48, 21, 22, 23, 24, 25, 26, 27, 37,
+ 38, 39, 40, 41, 42, 43, 44, 28, 29, 30, 35, 31, 33, 34, 36
+};
+
+/** Tables for spectrum coding. */
+typedef struct Atrac3pSpecCodeTab {
+ uint8_t group_size; ///< number of coefficients grouped together
+ uint8_t num_coeffs; ///< 1 - map index to a single value, > 1 - map index to a vector of values
+ uint8_t bits; ///< number of bits a single coefficient occupy
+ uint8_t is_signed; ///< 1 - values in that table are signed ones, otherwise - absolute ones
+
+ int redirect; ///< if >= 0: tells which huffman table must be reused
+ const uint8_t *cb; ///< pointer to the codebook descriptor
+ const uint8_t *xlat; ///< pointer to the translation table or NULL if none
+} Atrac3pSpecCodeTab;
+
+static const Atrac3pSpecCodeTab atrac3p_spectra_tabs[112] = {
+ /* table set = A */
+ /* code table = 0 */
+ { 1, 4, 2, 1, -1, huff_a01_cb, huff_a01_xlat }, // wordlen = 1
+ { 1, 4, 2, 0, -1, huff_a02_cb, huff_a02_xlat }, // wordlen = 2
+ { 1, 2, 3, 1, -1, huff_a03_cb, huff_a03_xlat }, // wordlen = 3
+ { 1, 1, 3, 0, -1, huff_a04_cb, huff_a04_xlat }, // wordlen = 4
+ { 1, 2, 4, 1, -1, huff_a05_cb, huff_a05_xlat }, // wordlen = 5
+ { 1, 1, 4, 0, -1, huff_a06_cb, huff_a06_xlat }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_a07_cb, huff_a07_xlat }, // wordlen = 7
+
+ /* code table = 1 */
+ { 4, 4, 2, 1, -1, huff_a11_cb, huff_a11_xlat }, // wordlen = 1
+ { 1, 4, 2, 0, -1, huff_a12_cb, huff_a12_xlat }, // wordlen = 2
+ { 1, 2, 3, 1, -1, huff_a13_cb, huff_a13_xlat }, // wordlen = 3
+ { 1, 2, 4, 1, -1, huff_a14_cb, huff_a14_xlat }, // wordlen = 4
+ { 1, 2, 4, 1, -1, huff_a15_cb, huff_a15_xlat }, // wordlen = 5
+ { 1, 2, 4, 0, -1, huff_a16_cb, huff_a16_xlat }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_a17_cb, huff_a17_xlat }, // wordlen = 7
+
+ /* code table = 2 */
+ { 1, 4, 2, 1, -1, huff_a21_cb, huff_a21_xlat }, // wordlen = 1
+ { 1, 2, 3, 1, -1, huff_a22_cb, huff_a22_xlat }, // wordlen = 2
+ { 1, 2, 3, 1, -1, huff_a23_cb, huff_a23_xlat }, // wordlen = 3
+ { 1, 1, 3, 0, -1, huff_a24_cb, NULL }, // wordlen = 4
+ { 1, 1, 3, 0, -1, huff_a25_cb, huff_a25_xlat }, // wordlen = 5
+ { 1, 2, 4, 0, -1, huff_a26_cb, huff_a26_xlat }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_a27_cb, huff_a27_xlat }, // wordlen = 7
+
+ /* code table = 3 */
+ { 1, 2, 2, 1, -1, huff_a31_cb, huff_a31_xlat }, // wordlen = 1
+ { 1, 4, 2, 0, -1, huff_a32_cb, huff_a32_xlat }, // wordlen = 2
+ { 1, 4, 2, 0, -1, huff_a33_cb, huff_a33_xlat }, // wordlen = 3
+ { 1, 1, 3, 0, -1, huff_a34_cb, huff_a34_xlat }, // wordlen = 4
+ { 1, 2, 4, 1, -1, huff_a35_cb, huff_a35_xlat }, // wordlen = 5
+ { 1, 2, 4, 0, -1, huff_a36_cb, huff_a36_xlat }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_a37_cb, huff_a37_xlat }, // wordlen = 7
+
+ /* code table = 4 */
+ { 1, 4, 2, 1, -1, huff_a41_cb, huff_a41_xlat }, // wordlen = 1
+ { 1, 4, 2, 0, -1, huff_a42_cb, huff_a42_xlat }, // wordlen = 2
+ { 1, 1, 3, 1, -1, huff_a43_cb, huff_a43_xlat }, // wordlen = 3
+ { 1, 2, 4, 1, -1, huff_a44_cb, huff_a44_xlat }, // wordlen = 4
+ { 1, 1, 3, 0, -1, huff_a45_cb, huff_a45_xlat }, // wordlen = 5
+ { 1, 2, 4, 0, -1, huff_a46_cb, huff_a46_xlat }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_a47_cb, huff_a47_xlat }, // wordlen = 7
+
+ /* code table = 5 */
+ { 1, 4, 2, 1, -1, huff_a51_cb, huff_a51_xlat }, // wordlen = 1
+ { 1, 2, 3, 1, -1, huff_a52_cb, huff_a52_xlat }, // wordlen = 2
+ { 1, 1, 3, 1, -1, huff_a43_cb, huff_a53_xlat }, // wordlen = 3
+ { 1, 2, 4, 1, -1, huff_a54_cb, huff_a54_xlat }, // wordlen = 4
+ { 1, 1, 3, 0, -1, huff_a55_cb, huff_a55_xlat }, // wordlen = 5
+ { 1, 1, 5, 1, -1, huff_a56_cb, huff_a56_xlat }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_a57_cb, huff_a57_xlat }, // wordlen = 7
+
+ /* code table = 6 */
+ { 2, 4, 2, 1, -1, huff_a61_cb, huff_a61_xlat }, // wordlen = 1
+ { 1, 2, 3, 1, -1, huff_a62_cb, huff_a62_xlat }, // wordlen = 2
+ { 1, 4, 2, 0, -1, huff_a63_cb, huff_a63_xlat }, // wordlen = 3
+ { 1, 2, 4, 1, -1, huff_a64_cb, huff_a64_xlat }, // wordlen = 4
+ { 1, 1, 4, 1, -1, huff_a65_cb, huff_a65_xlat }, // wordlen = 5
+ { 1, 1, 5, 1, -1, huff_a66_cb, huff_a66_xlat }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_a67_cb, huff_a67_xlat }, // wordlen = 7
+
+ /* code table = 7 */
+ { 1, 2, 1, 0, -1, huff_a71_cb, NULL }, // wordlen = 1
+ { 2, 4, 2, 0, -1, huff_a72_cb, huff_a72_xlat }, // wordlen = 2
+ { 1, 2, 3, 1, -1, huff_a73_cb, huff_a73_xlat }, // wordlen = 3
+ { 1, 2, 4, 1, -1, huff_a74_cb, huff_a74_xlat }, // wordlen = 4
+ { 1, 1, 4, 1, -1, huff_a75_cb, huff_a75_xlat }, // wordlen = 5
+ { 2, 2, 4, 0, -1, huff_a76_cb, huff_a76_xlat }, // wordlen = 6
+ { 4, 1, 6, 1, 6, NULL, NULL }, // wordlen = 7
+
+ /* table set = B */
+ /* code table = 0 */
+ { 4, 4, 2, 1, -1, huff_b01_cb, huff_b01_xlat }, // wordlen = 1
+ { 1, 4, 2, 0, -1, huff_b02_cb, huff_b02_xlat }, // wordlen = 2
+ { 4, 2, 3, 1, -1, huff_b03_cb, huff_b03_xlat }, // wordlen = 3
+ { 1, 2, 4, 1, -1, huff_b04_cb, huff_b04_xlat }, // wordlen = 4
+ { 1, 2, 4, 1, -1, huff_b05_cb, huff_b05_xlat }, // wordlen = 5
+ { 1, 1, 4, 0, 5, NULL, NULL }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_b07_cb, huff_b07_xlat }, // wordlen = 7
+
+ /* code table = 1 */
+ { 1, 4, 2, 1, 14, NULL, NULL }, // wordlen = 1
+ { 1, 4, 2, 0, -1, huff_b12_cb, huff_b12_xlat }, // wordlen = 2
+ { 1, 2, 3, 1, 9, NULL, NULL }, // wordlen = 3
+ { 1, 2, 4, 1, -1, huff_b14_cb, huff_b14_xlat }, // wordlen = 4
+ { 1, 2, 4, 1, 11, NULL, NULL }, // wordlen = 5
+ { 1, 2, 4, 0, -1, huff_b16_cb, huff_b16_xlat }, // wordlen = 6
+ { 1, 1, 6, 1, 6, NULL, NULL }, // wordlen = 7
+
+ /* code table = 2 */
+ { 4, 4, 2, 1, 28, NULL, NULL }, // wordlen = 1
+ { 4, 4, 2, 0, 22, NULL, NULL }, // wordlen = 2
+ { 1, 2, 3, 1, 2, NULL, NULL }, // wordlen = 3
+ { 1, 2, 4, 1, 31, NULL, NULL }, // wordlen = 4
+ { 2, 2, 4, 1, 60, NULL, NULL }, // wordlen = 5
+ { 2, 2, 4, 0, -1, huff_b26_cb, huff_b26_xlat }, // wordlen = 6
+ { 4, 1, 6, 1, 6, NULL, NULL }, // wordlen = 7
+
+ /* code table = 3 */
+ { 1, 4, 2, 1, 35, NULL, NULL }, // wordlen = 1
+ { 1, 4, 2, 0, -1, huff_b32_cb, huff_b32_xlat }, // wordlen = 2
+ { 1, 4, 2, 0, -1, huff_b33_cb, huff_b33_xlat }, // wordlen = 3
+ { 2, 2, 4, 1, 59, NULL, NULL }, // wordlen = 4
+ { 1, 2, 4, 1, -1, huff_b35_cb, huff_b35_xlat }, // wordlen = 5
+ { 1, 2, 4, 0, 75, NULL, NULL }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_b37_cb, huff_b37_xlat }, // wordlen = 7
+
+ /* code table = 4 */
+ { 1, 4, 2, 1, -1, huff_b41_cb, huff_b41_xlat }, // wordlen = 1
+ { 4, 2, 3, 1, -1, huff_b42_cb, huff_b42_xlat }, // wordlen = 2
+ { 1, 2, 3, 1, -1, huff_b43_cb, huff_b43_xlat }, // wordlen = 3
+ { 4, 2, 4, 1, 66, NULL, NULL }, // wordlen = 4
+ { 1, 1, 3, 0, 32, NULL, NULL }, // wordlen = 5
+ { 1, 2, 4, 0, 12, NULL, NULL }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_b47_cb, huff_b47_xlat }, // wordlen = 7
+
+ /* code table = 5 */
+ { 2, 4, 2, 1, 42, NULL, NULL }, // wordlen = 1
+ { 1, 2, 3, 1, -1, huff_b52_cb, huff_b52_xlat }, // wordlen = 2
+ { 4, 1, 3, 1, -1, huff_b53_cb, huff_b53_xlat }, // wordlen = 3
+ { 1, 1, 3, 0, 17, NULL, NULL }, // wordlen = 4
+ { 1, 1, 3, 0, 39, NULL, NULL }, // wordlen = 5
+ { 1, 1, 5, 1, -1, huff_b56_cb, huff_b56_xlat }, // wordlen = 6
+ { 2, 1, 6, 1, 62, NULL, NULL }, // wordlen = 7
+
+ /* code table = 6 */
+ { 1, 4, 2, 1, 28, NULL, NULL }, // wordlen = 1
+ { 1, 4, 2, 0, -1, huff_b62_cb, huff_b62_xlat }, // wordlen = 2
+ { 1, 1, 3, 1, -1, huff_b63_cb, huff_b63_xlat }, // wordlen = 3
+ { 1, 1, 3, 0, -1, huff_b64_cb, huff_b64_xlat }, // wordlen = 4
+ { 4, 2, 4, 1, -1, huff_b65_cb, huff_b65_xlat }, // wordlen = 5
+ { 1, 2, 4, 0, -1, huff_b66_cb, huff_b66_xlat }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_b67_cb, huff_b67_xlat }, // wordlen = 7
+
+ /* code table = 7 */
+ { 1, 4, 2, 1, -1, huff_b71_cb, huff_b71_xlat }, // wordlen = 1
+ { 4, 4, 2, 0, 78, NULL, NULL }, // wordlen = 2
+ { 4, 4, 2, 0, -1, huff_b73_cb, huff_b73_xlat }, // wordlen = 3
+ { 1, 1, 4, 1, -1, huff_b74_cb, huff_b74_xlat }, // wordlen = 4
+ { 1, 2, 4, 1, -1, huff_b75_cb, huff_b75_xlat }, // wordlen = 5
+ { 1, 1, 5, 1, 47, NULL, NULL }, // wordlen = 6
+ { 1, 1, 6, 1, -1, huff_b77_cb, huff_b77_xlat }, // wordlen = 7
+};
+
+/* Huffman tables for gain control data. */
+static const uint8_t atrac3p_huff_gain_npoints1_cb[9] = {
+ 1, 7, 1, 1, 1, 1, 1, 1, 2
+};
+
+static const uint8_t atrac3p_huff_gain_npoints2_xlat[8] = {
+ 0, 1, 7, 2, 6, 3, 4, 5
+};
+
+static const uint8_t atrac3p_huff_gain_lev1_cb[9] = { 1, 7, 1, 0, 2, 2, 1, 2, 8 };
+static const uint8_t atrac3p_huff_gain_lev1_xlat[16] = {
+ 7, 5, 8, 6, 9, 4, 10, 11, 0, 1, 2, 3, 12, 13, 14, 15
+};
+
+static const uint8_t atrac3p_huff_gain_lev2_cb[11] = {
+ 1, 9, 1, 1, 1, 1, 1, 0, 2, 0, 8
+};
+
+static const uint8_t atrac3p_huff_gain_lev2_xlat[15] = {
+ 15, 14, 1, 13, 2, 3, 12, 4, 5, 6, 7, 8, 9, 10, 11
+};
+
+static const uint8_t atrac3p_huff_gain_lev3_cb[11] = {
+ 1, 9, 1, 0, 3, 1, 1, 0, 2, 0, 8
+};
+
+static const uint8_t atrac3p_huff_gain_lev3_xlat[16] = {
+ 0, 1, 14, 15, 2, 13, 3, 12, 4, 5, 6, 7, 8, 9, 10, 11
+};
+
+static const uint8_t atrac3p_huff_gain_lev4_cb[11] = {
+ 1, 9, 1, 1, 1, 1, 1, 0, 1, 2, 8
+};
+
+static const uint8_t atrac3p_huff_gain_lev4_xlat[16] = {
+ 0, 1, 15, 14, 2, 13, 3, 12, 4, 5, 6, 7, 8, 9, 10, 11
+};
+
+static const uint8_t atrac3p_huff_gain_loc1_cb[9] = { 2, 8, 1, 2, 4, 4, 4, 0, 16 };
+static const uint8_t atrac3p_huff_gain_loc1_xlat[31] = {
+ 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+ 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
+};
+
+static const uint8_t atrac3p_huff_gain_loc2_cb[8] = { 3, 8, 5, 3, 2, 3, 2, 16 };
+static const uint8_t atrac3p_huff_gain_loc2_xlat[31] = {
+ 2, 3, 4, 5, 6, 1, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16,
+ 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31
+};
+
+static const uint8_t atrac3p_huff_gain_loc3_cb[7] = { 2, 6, 1, 0, 2, 11, 18 };
+static const uint8_t atrac3p_huff_gain_loc3_xlat[32] = {
+ 0, 1, 31, 2, 3, 4, 5, 6, 7, 26, 27, 28, 29, 30, 8, 9,
+ 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25
+};
+
+static const uint8_t atrac3p_huff_gain_loc4_cb[5] = { 4, 6, 3, 23, 6 };
+static const uint8_t atrac3p_huff_gain_loc4_xlat[32] = {
+ 0, 28, 29, 1, 2, 3, 4, 11, 12, 13, 14, 15, 16, 17, 18, 19,
+ 20, 21, 22, 23, 24, 25, 26, 27, 30, 31, 5, 6, 7, 8, 9, 10
+};
+
+static const uint8_t atrac3p_huff_gain_loc5_cb[9] = { 1, 7, 1, 0, 0, 3, 2, 6, 20 };
+static const uint8_t atrac3p_huff_gain_loc5_xlat[32] = {
+ 0, 1, 2, 31, 3, 4, 5, 6, 7, 8, 29, 30, 9, 10, 11, 12,
+ 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28
+};
+
+/* Huffman tables for GHA waves data. */
+static const uint8_t atrac3p_huff_tonebands_cb[8] = { 1, 6, 1, 0, 1, 2, 4, 8 };
+static const uint8_t atrac3p_huff_numwavs1_cb[9] = { 1, 7, 1, 1, 1, 1, 1, 1, 2 };
+static const uint8_t atrac3p_huff_numwavs2_cb[8] = { 1, 6, 1, 1, 1, 1, 0, 4 };
+static const uint8_t atrac3p_huff_numwavs2_xlat[8] = { 0, 1, 7, 2, 3, 4, 5, 6 };
+static const uint8_t atrac3p_huff_wav_ampsf1_cb[7] = { 4, 8, 10, 8, 6, 0, 8 };
+static const uint8_t atrac3p_huff_wav_ampsf1_xlat[32] = {
+ 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 5, 6, 7, 18, 19, 20,
+ 21, 22, 4, 23, 24, 25, 26, 27, 0, 1, 2, 3, 28, 29, 30, 31
+};
+
+static const uint8_t atrac3p_huff_wav_ampsf2_cb[7] = { 4, 8, 11, 5, 6, 6, 4 };
+static const uint8_t atrac3p_huff_wav_ampsf2_xlat[32] = {
+ 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 14, 15, 16, 17, 29,
+ 9, 10, 11, 12, 13, 30, 4, 5, 6, 7, 8, 31, 0, 1, 2, 3
+};
+
+static const uint8_t atrac3p_huff_wav_ampsf3_cb[9] = { 2, 8, 1, 3, 3, 1, 4, 4, 16 };
+static const uint8_t atrac3p_huff_wav_ampsf3_xlat[32] = {
+ 0, 1, 2, 31, 3, 29, 30, 4, 5, 6, 27, 28, 7, 24, 25, 26,
+ 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23
+};
+
+static const uint8_t atrac3p_huff_freq_cb[13] = {
+ 1, 11, 1, 0, 0, 2, 2, 0, 9, 9, 29, 104, 100
+};
+
+static const uint8_t atrac3p_huff_freq_xlat[256] = {
+ 0, 1, 255, 2, 254, 3, 4, 5, 6, 7, 8, 251, 252, 253, 9, 10,
+ 11, 12, 246, 247, 248, 249, 250, 13, 14, 15, 16, 17, 18, 19, 20, 21,
+ 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37,
+ 38, 243, 244, 245, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50,
+ 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66,
+ 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82,
+ 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 194, 195, 196, 197, 198,
+ 199, 200, 201, 202, 203, 204, 205, 206, 207, 208, 209, 210, 211, 212, 213, 214,
+ 215, 216, 217, 218, 219, 220, 221, 222, 223, 224, 225, 226, 227, 228, 229, 230,
+ 231, 232, 233, 234, 235, 236, 237, 238, 239, 240, 241, 242, 94, 95, 96, 97,
+ 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, 112, 113,
+ 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, 128, 129,
+ 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, 144, 145,
+ 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, 160, 161,
+ 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, 176, 177,
+ 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, 192, 193
+};
+
+#endif /* AVCODEC_ATRAC3PLUS_DATA_H */
diff --git a/libavcodec/atrac3plusdec.c b/libavcodec/atrac3plusdec.c
new file mode 100644
index 0000000000..51d7072374
--- /dev/null
+++ b/libavcodec/atrac3plusdec.c
@@ -0,0 +1,383 @@
+/*
+ * ATRAC3+ compatible decoder
+ *
+ * Copyright (c) 2010-2013 Maxim Poliakovski
+ *
+ * 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
+ * Sony ATRAC3+ compatible decoder.
+ *
+ * Container formats used to store its data:
+ * RIFF WAV (.at3) and Sony OpenMG (.oma, .aa3).
+ *
+ * Technical description of this codec can be found here:
+ * http://wiki.multimedia.cx/index.php?title=ATRAC3plus
+ *
+ * Kudos to Benjamin Larsson and Michael Karcher
+ * for their precious technical help!
+ */
+
+#include <stdint.h>
+#include <string.h>
+
+#include "libavutil/channel_layout.h"
+#include "libavutil/float_dsp.h"
+#include "avcodec.h"
+#include "get_bits.h"
+#include "internal.h"
+#include "atrac.h"
+#include "atrac3plus.h"
+
+typedef struct ATRAC3PContext {
+ GetBitContext gb;
+ AVFloatDSPContext fdsp;
+
+ DECLARE_ALIGNED(32, float, samples)[2][ATRAC3P_FRAME_SAMPLES]; ///< quantized MDCT spectrum
+ DECLARE_ALIGNED(32, float, mdct_buf)[2][ATRAC3P_FRAME_SAMPLES]; ///< output of the IMDCT
+ DECLARE_ALIGNED(32, float, time_buf)[2][ATRAC3P_FRAME_SAMPLES]; ///< output of the gain compensation
+ DECLARE_ALIGNED(32, float, outp_buf)[2][ATRAC3P_FRAME_SAMPLES];
+
+ AtracGCContext gainc_ctx; ///< gain compensation context
+ FFTContext mdct_ctx;
+ FFTContext ipqf_dct_ctx; ///< IDCT context used by IPQF
+
+ Atrac3pChanUnitCtx *ch_units; ///< global channel units
+
+ int num_channel_blocks; ///< number of channel blocks
+ uint8_t channel_blocks[5]; ///< channel configuration descriptor
+ uint64_t my_channel_layout; ///< current channel layout
+} ATRAC3PContext;
+
+static av_cold int atrac3p_decode_close(AVCodecContext *avctx)
+{
+ av_free(((ATRAC3PContext *)(avctx->priv_data))->ch_units);
+
+ return 0;
+}
+
+static av_cold int set_channel_params(ATRAC3PContext *ctx,
+ AVCodecContext *avctx)
+{
+ memset(ctx->channel_blocks, 0, sizeof(ctx->channel_blocks));
+
+ switch (avctx->channel_layout) {
+ case AV_CH_FRONT_LEFT:
+ case AV_CH_LAYOUT_MONO:
+ ctx->num_channel_blocks = 1;
+ ctx->channel_blocks[0] = CH_UNIT_MONO;
+ break;
+ case AV_CH_LAYOUT_STEREO:
+ ctx->num_channel_blocks = 1;
+ ctx->channel_blocks[0] = CH_UNIT_STEREO;
+ break;
+ case AV_CH_LAYOUT_SURROUND:
+ ctx->num_channel_blocks = 2;
+ ctx->channel_blocks[0] = CH_UNIT_STEREO;
+ ctx->channel_blocks[1] = CH_UNIT_MONO;
+ break;
+ case AV_CH_LAYOUT_4POINT0:
+ ctx->num_channel_blocks = 3;
+ ctx->channel_blocks[0] = CH_UNIT_STEREO;
+ ctx->channel_blocks[1] = CH_UNIT_MONO;
+ ctx->channel_blocks[2] = CH_UNIT_MONO;
+ break;
+ case AV_CH_LAYOUT_5POINT1_BACK:
+ ctx->num_channel_blocks = 4;
+ ctx->channel_blocks[0] = CH_UNIT_STEREO;
+ ctx->channel_blocks[1] = CH_UNIT_MONO;
+ ctx->channel_blocks[2] = CH_UNIT_STEREO;
+ ctx->channel_blocks[3] = CH_UNIT_MONO;
+ break;
+ case AV_CH_LAYOUT_6POINT1_BACK:
+ ctx->num_channel_blocks = 5;
+ ctx->channel_blocks[0] = CH_UNIT_STEREO;
+ ctx->channel_blocks[1] = CH_UNIT_MONO;
+ ctx->channel_blocks[2] = CH_UNIT_STEREO;
+ ctx->channel_blocks[3] = CH_UNIT_MONO;
+ ctx->channel_blocks[4] = CH_UNIT_MONO;
+ break;
+ case AV_CH_LAYOUT_7POINT1:
+ ctx->num_channel_blocks = 5;
+ ctx->channel_blocks[0] = CH_UNIT_STEREO;
+ ctx->channel_blocks[1] = CH_UNIT_MONO;
+ ctx->channel_blocks[2] = CH_UNIT_STEREO;
+ ctx->channel_blocks[3] = CH_UNIT_STEREO;
+ ctx->channel_blocks[4] = CH_UNIT_MONO;
+ break;
+ default:
+ av_log(avctx, AV_LOG_ERROR,
+ "Unsupported channel layout: %"PRIx64"!\n", avctx->channel_layout);
+ return AVERROR_INVALIDDATA;
+ }
+
+ return 0;
+}
+
+static av_cold int atrac3p_decode_init(AVCodecContext *avctx)
+{
+ ATRAC3PContext *ctx = avctx->priv_data;
+ int i, ch, ret;
+
+ ff_atrac3p_init_vlcs();
+
+ avpriv_float_dsp_init(&ctx->fdsp, avctx->flags & CODEC_FLAG_BITEXACT);
+
+ /* initialize IPQF */
+ ff_mdct_init(&ctx->ipqf_dct_ctx, 5, 1, 32.0 / 32768.0);
+
+ ff_atrac3p_init_imdct(avctx, &ctx->mdct_ctx);
+
+ ff_atrac_init_gain_compensation(&ctx->gainc_ctx, 6, 2);
+
+ ff_atrac3p_init_wave_synth();
+
+ if ((ret = set_channel_params(ctx, avctx)) < 0)
+ return ret;
+
+ ctx->my_channel_layout = avctx->channel_layout;
+
+ ctx->ch_units = av_mallocz(sizeof(*ctx->ch_units) *
+ ctx->num_channel_blocks);
+ if (!ctx->ch_units) {
+ atrac3p_decode_close(avctx);
+ return AVERROR(ENOMEM);
+ }
+
+ for (i = 0; i < ctx->num_channel_blocks; i++) {
+ for (ch = 0; ch < 2; ch++) {
+ ctx->ch_units[i].channels[ch].ch_num = ch;
+ ctx->ch_units[i].channels[ch].wnd_shape = &ctx->ch_units[i].channels[ch].wnd_shape_hist[0][0];
+ ctx->ch_units[i].channels[ch].wnd_shape_prev = &ctx->ch_units[i].channels[ch].wnd_shape_hist[1][0];
+ ctx->ch_units[i].channels[ch].gain_data = &ctx->ch_units[i].channels[ch].gain_data_hist[0][0];
+ ctx->ch_units[i].channels[ch].gain_data_prev = &ctx->ch_units[i].channels[ch].gain_data_hist[1][0];
+ ctx->ch_units[i].channels[ch].tones_info = &ctx->ch_units[i].channels[ch].tones_info_hist[0][0];
+ ctx->ch_units[i].channels[ch].tones_info_prev = &ctx->ch_units[i].channels[ch].tones_info_hist[1][0];
+ }
+
+ ctx->ch_units[i].waves_info = &ctx->ch_units[i].wave_synth_hist[0];
+ ctx->ch_units[i].waves_info_prev = &ctx->ch_units[i].wave_synth_hist[1];
+ }
+
+ avctx->sample_fmt = AV_SAMPLE_FMT_FLTP;
+
+ return 0;
+}
+
+static void decode_residual_spectrum(Atrac3pChanUnitCtx *ctx,
+ float out[2][ATRAC3P_FRAME_SAMPLES],
+ int num_channels,
+ AVCodecContext *avctx)
+{
+ int i, sb, ch, qu, nspeclines, RNG_index;
+ float *dst, q;
+ int16_t *src;
+ /* calculate RNG table index for each subband */
+ int sb_RNG_index[ATRAC3P_SUBBANDS] = { 0 };
+
+ if (ctx->mute_flag) {
+ for (ch = 0; ch < num_channels; ch++)
+ memset(out[ch], 0, ATRAC3P_FRAME_SAMPLES * sizeof(*out[ch]));
+ return;
+ }
+
+ for (qu = 0, RNG_index = 0; qu < ctx->used_quant_units; qu++)
+ RNG_index += ctx->channels[0].qu_sf_idx[qu] +
+ ctx->channels[1].qu_sf_idx[qu];
+
+ for (sb = 0; sb < ctx->num_coded_subbands; sb++, RNG_index += 128)
+ sb_RNG_index[sb] = RNG_index & 0x3FC;
+
+ /* inverse quant and power compensation */
+ for (ch = 0; ch < num_channels; ch++) {
+ /* clear channel's residual spectrum */
+ memset(out[ch], 0, ATRAC3P_FRAME_SAMPLES * sizeof(*out[ch]));
+
+ for (qu = 0; qu < ctx->used_quant_units; qu++) {
+ src = &ctx->channels[ch].spectrum[ff_atrac3p_qu_to_spec_pos[qu]];
+ dst = &out[ch][ff_atrac3p_qu_to_spec_pos[qu]];
+ nspeclines = ff_atrac3p_qu_to_spec_pos[qu + 1] -
+ ff_atrac3p_qu_to_spec_pos[qu];
+
+ if (ctx->channels[ch].qu_wordlen[qu] > 0) {
+ q = ff_atrac3p_sf_tab[ctx->channels[ch].qu_sf_idx[qu]] *
+ ff_atrac3p_mant_tab[ctx->channels[ch].qu_wordlen[qu]];
+ for (i = 0; i < nspeclines; i++)
+ dst[i] = src[i] * q;
+ }
+ }
+
+ for (sb = 0; sb < ctx->num_coded_subbands; sb++)
+ ff_atrac3p_power_compensation(ctx, ch, &out[ch][0],
+ sb_RNG_index[sb], sb);
+ }
+
+ if (ctx->unit_type == CH_UNIT_STEREO) {
+ for (sb = 0; sb < ctx->num_coded_subbands; sb++) {
+ if (ctx->swap_channels[sb]) {
+ for (i = 0; i < ATRAC3P_SUBBAND_SAMPLES; i++)
+ FFSWAP(float, out[0][sb * ATRAC3P_SUBBAND_SAMPLES + i],
+ out[1][sb * ATRAC3P_SUBBAND_SAMPLES + i]);
+ }
+
+ /* flip coefficients' sign if requested */
+ if (ctx->negate_coeffs[sb])
+ for (i = 0; i < ATRAC3P_SUBBAND_SAMPLES; i++)
+ out[1][sb * ATRAC3P_SUBBAND_SAMPLES + i] = -(out[1][sb * ATRAC3P_SUBBAND_SAMPLES + i]);
+ }
+ }
+}
+
+static void reconstruct_frame(ATRAC3PContext *ctx, Atrac3pChanUnitCtx *ch_unit,
+ int num_channels, AVCodecContext *avctx)
+{
+ int ch, sb;
+
+ for (ch = 0; ch < num_channels; ch++) {
+ for (sb = 0; sb < ch_unit->num_subbands; sb++) {
+ /* inverse transform and windowing */
+ ff_atrac3p_imdct(&ctx->fdsp, &ctx->mdct_ctx,
+ &ctx->samples[ch][sb * ATRAC3P_SUBBAND_SAMPLES],
+ &ctx->mdct_buf[ch][sb * ATRAC3P_SUBBAND_SAMPLES],
+ (ch_unit->channels[ch].wnd_shape_prev[sb] << 1) +
+ ch_unit->channels[ch].wnd_shape[sb], sb);
+
+ /* gain compensation and overlapping */
+ ff_atrac_gain_compensation(&ctx->gainc_ctx,
+ &ctx->mdct_buf[ch][sb * ATRAC3P_SUBBAND_SAMPLES],
+ &ch_unit->prev_buf[ch][sb * ATRAC3P_SUBBAND_SAMPLES],
+ &ch_unit->channels[ch].gain_data_prev[sb],
+ &ch_unit->channels[ch].gain_data[sb],
+ ATRAC3P_SUBBAND_SAMPLES,
+ &ctx->time_buf[ch][sb * ATRAC3P_SUBBAND_SAMPLES]);
+ }
+
+ /* zero unused subbands in both output and overlapping buffers */
+ memset(&ch_unit->prev_buf[ch][ch_unit->num_subbands * ATRAC3P_SUBBAND_SAMPLES],
+ 0,
+ (ATRAC3P_SUBBANDS - ch_unit->num_subbands) *
+ ATRAC3P_SUBBAND_SAMPLES *
+ sizeof(ch_unit->prev_buf[ch][ch_unit->num_subbands * ATRAC3P_SUBBAND_SAMPLES]));
+ memset(&ctx->time_buf[ch][ch_unit->num_subbands * ATRAC3P_SUBBAND_SAMPLES],
+ 0,
+ (ATRAC3P_SUBBANDS - ch_unit->num_subbands) *
+ ATRAC3P_SUBBAND_SAMPLES *
+ sizeof(ctx->time_buf[ch][ch_unit->num_subbands * ATRAC3P_SUBBAND_SAMPLES]));
+
+ /* resynthesize and add tonal signal */
+ if (ch_unit->waves_info->tones_present ||
+ ch_unit->waves_info_prev->tones_present) {
+ for (sb = 0; sb < ch_unit->num_subbands; sb++)
+ if (ch_unit->channels[ch].tones_info[sb].num_wavs ||
+ ch_unit->channels[ch].tones_info_prev[sb].num_wavs) {
+ ff_atrac3p_generate_tones(ch_unit, &ctx->fdsp, ch, sb,
+ &ctx->time_buf[ch][sb * 128]);
+ }
+ }
+
+ /* subband synthesis and acoustic signal output */
+ ff_atrac3p_ipqf(&ctx->ipqf_dct_ctx, &ch_unit->ipqf_ctx[ch],
+ &ctx->time_buf[ch][0], &ctx->outp_buf[ch][0]);
+ }
+
+ /* swap window shape and gain control buffers. */
+ for (ch = 0; ch < num_channels; ch++) {
+ FFSWAP(uint8_t *, ch_unit->channels[ch].wnd_shape,
+ ch_unit->channels[ch].wnd_shape_prev);
+ FFSWAP(AtracGainInfo *, ch_unit->channels[ch].gain_data,
+ ch_unit->channels[ch].gain_data_prev);
+ FFSWAP(Atrac3pWavesData *, ch_unit->channels[ch].tones_info,
+ ch_unit->channels[ch].tones_info_prev);
+ }
+
+ FFSWAP(Atrac3pWaveSynthParams *, ch_unit->waves_info, ch_unit->waves_info_prev);
+}
+
+static int atrac3p_decode_frame(AVCodecContext *avctx, void *data,
+ int *got_frame_ptr, AVPacket *avpkt)
+{
+ ATRAC3PContext *ctx = avctx->priv_data;
+ AVFrame *frame = data;
+ int i, ret, ch_unit_id, ch_block = 0, out_ch_index = 0, channels_to_process;
+ float **samples_p = (float **)frame->extended_data;
+
+ frame->nb_samples = ATRAC3P_FRAME_SAMPLES;
+ if ((ret = ff_get_buffer(avctx, frame, 0)) < 0) {
+ av_log(avctx, AV_LOG_ERROR, "get_buffer() failed\n");
+ return ret;
+ }
+
+ if ((ret = init_get_bits8(&ctx->gb, avpkt->data, avpkt->size)) < 0)
+ return ret;
+
+ if (get_bits1(&ctx->gb)) {
+ av_log(avctx, AV_LOG_ERROR, "Invalid start bit!\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ while (get_bits_left(&ctx->gb) >= 2 &&
+ (ch_unit_id = get_bits(&ctx->gb, 2)) != CH_UNIT_TERMINATOR) {
+ if (ch_unit_id == CH_UNIT_EXTENSION) {
+ avpriv_report_missing_feature(avctx, "Channel unit extension");
+ return AVERROR_PATCHWELCOME;
+ }
+ if (ch_block >= ctx->num_channel_blocks ||
+ ctx->channel_blocks[ch_block] != ch_unit_id) {
+ av_log(avctx, AV_LOG_ERROR,
+ "Frame data doesn't match channel configuration!\n");
+ return AVERROR_INVALIDDATA;
+ }
+
+ ctx->ch_units[ch_block].unit_type = ch_unit_id;
+ channels_to_process = ch_unit_id + 1;
+
+ if ((ret = ff_atrac3p_decode_channel_unit(&ctx->gb,
+ &ctx->ch_units[ch_block],
+ channels_to_process,
+ avctx)) < 0)
+ return ret;
+
+ decode_residual_spectrum(&ctx->ch_units[ch_block], ctx->samples,
+ channels_to_process, avctx);
+ reconstruct_frame(ctx, &ctx->ch_units[ch_block],
+ channels_to_process, avctx);
+
+ for (i = 0; i < channels_to_process; i++)
+ memcpy(samples_p[out_ch_index + i], ctx->outp_buf[i],
+ ATRAC3P_FRAME_SAMPLES * sizeof(**samples_p));
+
+ ch_block++;
+ out_ch_index += channels_to_process;
+ }
+
+ *got_frame_ptr = 1;
+
+ return avctx->block_align;
+}
+
+AVCodec ff_atrac3p_decoder = {
+ .name = "atrac3plus",
+ .long_name = NULL_IF_CONFIG_SMALL("ATRAC3+ (Adaptive TRansform Acoustic Coding 3+)"),
+ .type = AVMEDIA_TYPE_AUDIO,
+ .id = AV_CODEC_ID_ATRAC3P,
+ .priv_data_size = sizeof(ATRAC3PContext),
+ .init = atrac3p_decode_init,
+ .close = atrac3p_decode_close,
+ .decode = atrac3p_decode_frame,
+};
diff --git a/libavcodec/atrac3plusdsp.c b/libavcodec/atrac3plusdsp.c
new file mode 100644
index 0000000000..f8624b567b
--- /dev/null
+++ b/libavcodec/atrac3plusdsp.c
@@ -0,0 +1,637 @@
+/*
+ * ATRAC3+ compatible decoder
+ *
+ * Copyright (c) 2010-2013 Maxim Poliakovski
+ *
+ * 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
+ * DSP functions for ATRAC3+ decoder.
+ */
+
+#include <math.h>
+
+#include "libavutil/float_dsp.h"
+#include "avcodec.h"
+#include "sinewin.h"
+#include "fft.h"
+#include "atrac3plus.h"
+
+/**
+ * Map quant unit number to its position in the spectrum.
+ * To get the number of spectral lines in each quant unit do the following:
+ * num_specs = qu_to_spec_pos[i+1] - qu_to_spec_pos[i]
+ */
+const uint16_t ff_atrac3p_qu_to_spec_pos[33] = {
+ 0, 16, 32, 48, 64, 80, 96, 112,
+ 128, 160, 192, 224, 256, 288, 320, 352,
+ 384, 448, 512, 576, 640, 704, 768, 896,
+ 1024, 1152, 1280, 1408, 1536, 1664, 1792, 1920,
+ 2048
+};
+
+/* Scalefactors table. */
+/* Approx. Equ: pow(2.0, (i - 16.0 + 0.501783948) / 3.0) */
+const float ff_atrac3p_sf_tab[64] = {
+ 0.027852058, 0.0350914, 0.044212341, 0.055704117, 0.0701828,
+ 0.088424683, 0.11140823, 0.1403656, 0.17684937, 0.22281647, 0.2807312, 0.35369873,
+ 0.44563293, 0.5614624, 0.70739746, 0.89126587, 1.1229248, 1.4147949, 1.7825317,
+ 2.2458496, 2.8295898, 3.5650635, 4.4916992, 5.6591797, 7.130127, 8.9833984,
+ 11.318359, 14.260254, 17.966797, 22.636719, 28.520508, 35.933594, 45.273438,
+ 57.041016, 71.867188, 90.546875, 114.08203, 143.73438, 181.09375, 228.16406,
+ 287.46875, 362.1875, 456.32812, 574.9375, 724.375, 912.65625, 1149.875,
+ 1448.75, 1825.3125, 2299.75, 2897.5, 3650.625, 4599.5, 5795.0,
+ 7301.25, 9199.0, 11590.0, 14602.5, 18398.0, 23180.0, 29205.0,
+ 36796.0, 46360.0, 58410.0
+};
+
+/* Mantissa table. */
+/* pow(10, x * log10(2) + 0.05) / 2 / ([1,2,3,5,7,15,31] + 0.5) */
+const float ff_atrac3p_mant_tab[8] = {
+ 0.0,
+ 0.74801636,
+ 0.44882202,
+ 0.32058716,
+ 0.20400238,
+ 0.1496048,
+ 0.07239151,
+ 0.035619736
+};
+
+#define ATRAC3P_MDCT_SIZE (ATRAC3P_SUBBAND_SAMPLES * 2)
+
+av_cold void ff_atrac3p_init_imdct(AVCodecContext *avctx, FFTContext *mdct_ctx)
+{
+ ff_init_ff_sine_windows(7);
+ ff_init_ff_sine_windows(6);
+
+ /* Initialize the MDCT transform. */
+ ff_mdct_init(mdct_ctx, 8, 1, -1.0);
+}
+
+#define TWOPI (2 * M_PI)
+
+#define DEQUANT_PHASE(ph) (((ph) & 0x1F) << 6)
+
+static DECLARE_ALIGNED(32, float, sine_table)[2048]; ///< wave table
+static DECLARE_ALIGNED(32, float, hann_window)[256]; ///< Hann windowing function
+static float amp_sf_tab[64]; ///< scalefactors for quantized amplitudes
+
+av_cold void ff_atrac3p_init_wave_synth(void)
+{
+ int i;
+
+ /* generate sine wave table */
+ for (i = 0; i < 2048; i++)
+ sine_table[i] = sin(TWOPI * i / 2048);
+
+ /* generate Hann window */
+ for (i = 0; i < 256; i++)
+ hann_window[i] = (1.0f - cos(TWOPI * i / 256.0f)) * 0.5f;
+
+ /* generate amplitude scalefactors table */
+ for (i = 0; i < 64; i++)
+ amp_sf_tab[i] = pow(2.0f, ((double)i - 3) / 4.0f);
+}
+
+/**
+ * Synthesize sine waves according to given parameters.
+ *
+ * @param[in] synth_param ptr to common synthesis parameters
+ * @param[in] waves_info parameters for each sine wave
+ * @param[in] envelope envelope data for all waves in a group
+ * @param[in] reg_offset region offset for trimming envelope data
+ * @param[out] out receives sythesized data
+ */
+static void waves_synth(Atrac3pWaveSynthParams *synth_param,
+ Atrac3pWavesData *waves_info,
+ Atrac3pWaveEnvelope *envelope,
+ int phase_shift, int reg_offset, float *out)
+{
+ int i, wn, inc, pos;
+ double amp;
+ Atrac3pWaveParam *wave_param = &synth_param->waves[waves_info->start_index];
+
+ for (wn = 0; wn < waves_info->num_wavs; wn++, wave_param++) {
+ /* amplitude dequantization */
+ amp = amp_sf_tab[wave_param->amp_sf] *
+ (!synth_param->amplitude_mode
+ ? (wave_param->amp_index + 1) / 15.13f
+ : 1.0f);
+
+ inc = wave_param->freq_index;
+ pos = DEQUANT_PHASE(wave_param->phase_index) - (reg_offset ^ 128) * inc & 2047;
+
+ /* waveform generation */
+ for (i = 0; i < 128; i++) {
+ out[i] += sine_table[pos] * amp;
+ pos = (pos + inc) & 2047;
+ }
+ }
+
+ /* fade in with steep Hann window if requested */
+ if (envelope->has_start_point) {
+ pos = (envelope->start_pos << 2) - reg_offset;
+ if (pos > 0 && pos <= 128) {
+ memset(out, 0, pos * sizeof(*out));
+ if (!envelope->has_stop_point ||
+ envelope->start_pos != envelope->stop_pos) {
+ out[pos + 0] *= hann_window[0];
+ out[pos + 1] *= hann_window[32];
+ out[pos + 2] *= hann_window[64];
+ out[pos + 3] *= hann_window[96];
+ }
+ }
+ }
+
+ /* fade out with steep Hann window if requested */
+ if (envelope->has_stop_point) {
+ pos = (envelope->stop_pos + 1 << 2) - reg_offset;
+ if (pos > 0 && pos <= 128) {
+ out[pos - 4] *= hann_window[96];
+ out[pos - 3] *= hann_window[64];
+ out[pos - 2] *= hann_window[32];
+ out[pos - 1] *= hann_window[0];
+ memset(&out[pos], 0, (128 - pos) * sizeof(out[pos]));
+ }
+ }
+}
+
+void ff_atrac3p_generate_tones(Atrac3pChanUnitCtx *ch_unit, AVFloatDSPContext *fdsp,
+ int ch_num, int sb, float *out)
+{
+ DECLARE_ALIGNED(32, float, wavreg1)[128] = { 0 };
+ DECLARE_ALIGNED(32, float, wavreg2)[128] = { 0 };
+ int i, reg1_env_nonzero, reg2_env_nonzero;
+ Atrac3pWavesData *tones_now = &ch_unit->channels[ch_num].tones_info_prev[sb];
+ Atrac3pWavesData *tones_next = &ch_unit->channels[ch_num].tones_info[sb];
+
+ /* reconstruct full envelopes for both overlapping regions
+ * from truncated bitstream data */
+ if (tones_next->pend_env.has_start_point &&
+ tones_next->pend_env.start_pos < tones_next->pend_env.stop_pos) {
+ tones_next->curr_env.has_start_point = 1;
+ tones_next->curr_env.start_pos = tones_next->pend_env.start_pos + 32;
+ } else if (tones_now->pend_env.has_start_point) {
+ tones_next->curr_env.has_start_point = 1;
+ tones_next->curr_env.start_pos = tones_now->pend_env.start_pos;
+ } else {
+ tones_next->curr_env.has_start_point = 0;
+ tones_next->curr_env.start_pos = 0;
+ }
+
+ if (tones_now->pend_env.has_stop_point &&
+ tones_now->pend_env.stop_pos >= tones_next->curr_env.start_pos) {
+ tones_next->curr_env.has_stop_point = 1;
+ tones_next->curr_env.stop_pos = tones_now->pend_env.stop_pos;
+ } else if (tones_next->pend_env.has_stop_point) {
+ tones_next->curr_env.has_stop_point = 1;
+ tones_next->curr_env.stop_pos = tones_next->pend_env.stop_pos + 32;
+ } else {
+ tones_next->curr_env.has_stop_point = 0;
+ tones_next->curr_env.stop_pos = 64;
+ }
+
+ /* is the visible part of the envelope non-zero? */
+ reg1_env_nonzero = (tones_now->curr_env.stop_pos < 32) ? 0 : 1;
+ reg2_env_nonzero = (tones_next->curr_env.start_pos >= 32) ? 0 : 1;
+
+ /* synthesize waves for both overlapping regions */
+ if (tones_now->num_wavs && reg1_env_nonzero)
+ waves_synth(ch_unit->waves_info_prev, tones_now, &tones_now->curr_env,
+ ch_unit->waves_info_prev->phase_shift[sb] & ch_num,
+ 128, wavreg1);
+
+ if (tones_next->num_wavs && reg2_env_nonzero)
+ waves_synth(ch_unit->waves_info, tones_next, &tones_next->curr_env,
+ ch_unit->waves_info->phase_shift[sb] & ch_num, 0, wavreg2);
+
+ /* Hann windowing for non-faded wave signals */
+ if (tones_now->num_wavs && tones_next->num_wavs &&
+ reg1_env_nonzero && reg2_env_nonzero) {
+ fdsp->vector_fmul(wavreg1, wavreg1, &hann_window[128], 128);
+ fdsp->vector_fmul(wavreg2, wavreg2, hann_window, 128);
+ } else {
+ if (tones_now->num_wavs && !tones_now->curr_env.has_stop_point)
+ fdsp->vector_fmul(wavreg1, wavreg1, &hann_window[128], 128);
+
+ if (tones_next->num_wavs && !tones_next->curr_env.has_start_point)
+ fdsp->vector_fmul(wavreg2, wavreg2, hann_window, 128);
+ }
+
+ /* Overlap and add to residual */
+ for (i = 0; i < 128; i++)
+ out[i] += wavreg1[i] + wavreg2[i];
+}
+
+static const int subband_to_powgrp[ATRAC3P_SUBBANDS] = {
+ 0, 1, 1, 2, 2, 2, 3, 3, 3, 3, 3, 4, 4, 4, 4, 4
+};
+
+/* noise table for power compensation */
+static const float noise_tab[1024] = {
+ -0.01358032, -0.05593872, 0.01696777, -0.14871216, -0.26412964, -0.09893799, 0.25723267,
+ 0.02008057, -0.72235107, -0.44351196, -0.22985840, 0.16833496, 0.46902466, 0.05917358,
+ -0.15179443, 0.41299438, -0.01287842, 0.13360596, 0.43557739, -0.09530640, -0.58422852,
+ 0.39266968, -0.08343506, -0.25604248, 0.22848511, 0.26013184, -0.65588379, 0.17288208,
+ -0.08673096, -0.05203247, 0.07299805, -0.28665161, -0.35806274, 0.06552124, -0.09387207,
+ 0.21099854, -0.28347778, -0.72402954, 0.05050659, -0.10635376, -0.18853760, 0.29724121,
+ 0.20703125, -0.29791260, -0.37634277, 0.47970581, -0.09976196, 0.32641602, -0.29248047,
+ -0.28237915, 0.26028442, -0.36157227, 0.22042847, -0.03222656, -0.37268066, -0.03759766,
+ 0.09909058, 0.23284912, 0.19320679, 0.14453125, -0.02139282, -0.19702148, 0.31533813,
+ -0.16741943, 0.35031128, -0.35656738, -0.66128540, -0.00701904, 0.20898438, 0.26837158,
+ -0.33706665, -0.04568481, 0.12600708, 0.10284424, 0.07321167, -0.18280029, 0.38101196,
+ 0.21301270, 0.04541016, 0.01156616, -0.26391602, -0.02346802, -0.22125244, 0.29760742,
+ -0.36233521, -0.31314087, -0.13967896, -0.11276245, -0.19433594, 0.34490967, 0.02343750,
+ 0.21963501, -0.02777100, -0.67678833, -0.08999634, 0.14233398, -0.27697754, 0.51422119,
+ -0.05047607, 0.48327637, 0.37167358, -0.60806274, 0.18728638, -0.15191650, 0.00637817,
+ 0.02832031, -0.15618896, 0.60644531, 0.21826172, 0.06384277, -0.31863403, 0.08816528,
+ 0.15447998, -0.07015991, -0.08154297, -0.40966797, -0.39785767, -0.11709595, 0.22052002,
+ 0.18466187, -0.17257690, 0.03759766, -0.06195068, 0.00433350, 0.12176514, 0.34011841,
+ 0.25610352, -0.05294800, 0.41033936, 0.16854858, -0.76187134, 0.13845825, -0.19418335,
+ -0.21524048, -0.44412231, -0.08160400, -0.28195190, -0.01873779, 0.15524292, -0.37438965,
+ -0.44860840, 0.43096924, -0.24746704, 0.49856567, 0.14859009, 0.38159180, 0.20541382,
+ -0.39175415, -0.65850830, -0.43716431, 0.13037109, -0.05111694, 0.39956665, 0.21447754,
+ -0.04861450, 0.33654785, 0.10589600, -0.88085938, -0.30822754, 0.38577271, 0.30047607,
+ 0.38836670, 0.09118652, -0.36477661, -0.01641846, -0.23031616, 0.26058960, 0.18859863,
+ -0.21868896, -0.17861938, -0.29754639, 0.09777832, 0.10806274, -0.51605225, 0.00076294,
+ 0.13259888, 0.11090088, -0.24084473, 0.24957275, 0.01379395, -0.04141235, -0.04937744,
+ 0.57394409, 0.27410889, 0.27587891, 0.45013428, -0.32592773, 0.11160278, -0.00970459,
+ 0.29092407, 0.03356934, -0.70925903, 0.04882812, 0.43499756, 0.07720947, -0.27554321,
+ -0.01742554, -0.08413696, -0.04028320, -0.52850342, -0.07330322, 0.05181885, 0.21362305,
+ -0.18765259, 0.07058716, -0.03009033, 0.32662964, 0.27023315, -0.28002930, 0.17568970,
+ 0.03338623, 0.30242920, -0.03921509, 0.32174683, -0.23733521, 0.08575439, -0.38269043,
+ 0.09194946, -0.07238770, 0.17941284, -0.51278687, -0.25146484, 0.19790649, -0.19195557,
+ 0.16549683, 0.42456055, 0.39129639, -0.02868652, 0.17980957, 0.24902344, -0.76583862,
+ -0.20959473, 0.61013794, 0.37011719, 0.36859131, -0.04486084, 0.10678101, -0.15994263,
+ -0.05328369, 0.28463745, -0.06420898, -0.36987305, -0.28009033, -0.11764526, 0.04312134,
+ -0.08038330, 0.04885864, -0.03067017, -0.00042725, 0.34289551, -0.00988770, 0.34838867,
+ 0.32516479, -0.16271973, 0.38269043, 0.03240967, 0.12417603, -0.14331055, -0.34902954,
+ -0.18325806, 0.29421997, 0.44284058, 0.75170898, -0.67245483, -0.12176514, 0.27914429,
+ -0.29806519, 0.19863892, 0.30087280, 0.22680664, -0.36633301, -0.32534790, -0.57553101,
+ -0.16641235, 0.43811035, 0.08331299, 0.15942383, 0.26516724, -0.24240112, -0.11761475,
+ -0.16827393, -0.14260864, 0.46343994, 0.11804199, -0.55514526, -0.02520752, -0.14309692,
+ 0.00448608, 0.02749634, -0.30545044, 0.70965576, 0.45108032, 0.66439819, -0.68255615,
+ -0.12496948, 0.09146118, -0.21109009, -0.23791504, 0.79943848, -0.35205078, -0.24963379,
+ 0.18719482, -0.19079590, 0.07458496, 0.07623291, -0.28781128, -0.37121582, -0.19580078,
+ -0.01773071, -0.16717529, 0.13040161, 0.14672852, 0.42379761, 0.03582764, 0.11431885,
+ 0.05145264, 0.44702148, 0.08963013, 0.01367188, -0.54519653, -0.12692261, 0.21176147,
+ 0.04925537, 0.30670166, -0.11029053, 0.19555664, -0.27740479, 0.23043823, 0.15554810,
+ -0.19299316, -0.25729370, 0.17800903, -0.03579712, -0.05065918, -0.06933594, -0.09500122,
+ -0.07821655, 0.23889160, -0.31900024, 0.03073120, -0.00415039, 0.61315918, 0.37176514,
+ -0.13442993, -0.15536499, -0.19216919, -0.37899780, 0.19992065, 0.02630615, -0.12573242,
+ 0.25927734, -0.02447510, 0.29629517, -0.40731812, -0.17333984, 0.24310303, -0.10607910,
+ 0.14828491, 0.08792114, -0.18743896, -0.05572510, -0.04833984, 0.10473633, -0.29028320,
+ -0.67687988, -0.28170776, -0.41687012, 0.05413818, -0.23284912, 0.09555054, -0.08969116,
+ -0.15112305, 0.12738037, 0.35986328, 0.28948975, 0.30691528, 0.23956299, 0.06973267,
+ -0.31198120, -0.18450928, 0.22280884, -0.21600342, 0.23522949, -0.61840820, -0.13012695,
+ 0.26412964, 0.47320557, -0.26440430, 0.38757324, 0.17352295, -0.26104736, -0.25866699,
+ -0.12274170, -0.29733276, 0.07687378, 0.18588257, -0.08880615, 0.31185913, 0.05313110,
+ -0.10885620, -0.14901733, -0.22323608, -0.08538818, 0.19812012, 0.19732666, -0.18927002,
+ 0.29058838, 0.25555420, -0.48599243, 0.18768311, 0.01345825, 0.34887695, 0.21530151,
+ 0.19857788, 0.18661499, -0.01394653, -0.09063721, -0.38781738, 0.27160645, -0.20379639,
+ -0.32119751, -0.23889160, 0.27096558, 0.24951172, 0.07922363, 0.07479858, -0.50946045,
+ 0.10220337, 0.58364868, -0.19503784, -0.18560791, -0.01165771, 0.47195435, 0.22430420,
+ -0.38635254, -0.03732300, -0.09179688, 0.06991577, 0.15106201, 0.20605469, -0.05969238,
+ -0.41821289, 0.12231445, -0.04672241, -0.05117798, -0.11523438, -0.51849365, -0.04077148,
+ 0.44284058, -0.64086914, 0.17019653, 0.02236938, 0.22848511, -0.23214722, -0.32354736,
+ -0.14068604, -0.29690552, -0.19891357, 0.02774048, -0.20965576, -0.52191162, -0.19299316,
+ -0.07290649, 0.49053955, -0.22302246, 0.05642700, 0.13122559, -0.20819092, -0.83590698,
+ -0.08181763, 0.26797485, -0.00091553, -0.09457397, 0.17089844, -0.27020264, 0.30270386,
+ 0.05496216, 0.09564209, -0.08590698, 0.02130127, 0.35931396, 0.21728516, -0.15396118,
+ -0.05053711, 0.02719116, 0.16302490, 0.43212891, 0.10229492, -0.40820312, 0.21646118,
+ 0.08435059, -0.11145020, -0.39962769, -0.05618286, -0.10223389, -0.60839844, 0.33724976,
+ -0.06341553, -0.47369385, -0.32852173, 0.05242920, 0.19635010, -0.19137573, -0.67901611,
+ 0.16180420, 0.05133057, -0.22283936, 0.09646606, 0.24288940, -0.45007324, 0.08804321,
+ 0.14053345, 0.22619629, -0.01000977, 0.36355591, -0.19863892, -0.30364990, -0.24118042,
+ -0.57461548, 0.26498413, 0.04345703, -0.09796143, -0.47714233, -0.23739624, 0.18737793,
+ 0.08926392, -0.02795410, 0.00305176, -0.08700562, -0.38711548, 0.03222656, 0.10940552,
+ -0.41906738, -0.01620483, -0.47061157, 0.37985229, -0.21624756, 0.47976685, -0.20046997,
+ -0.62533569, -0.26907349, -0.02877808, 0.00671387, -0.29071045, -0.24685669, -0.15722656,
+ -0.26055908, 0.29968262, 0.28225708, -0.08990479, -0.16748047, -0.46759033, -0.25067139,
+ -0.25183105, -0.45932007, 0.05828857, 0.29006958, 0.23840332, -0.17974854, 0.26931763,
+ 0.10696411, -0.06848145, -0.17126465, -0.10522461, -0.55386353, -0.42306519, -0.07608032,
+ 0.24380493, 0.38586426, 0.16882324, 0.26751709, 0.17303467, 0.35809326, -0.22094727,
+ -0.30703735, -0.28497314, -0.04321289, 0.15219116, -0.17071533, -0.39334106, 0.03439331,
+ -0.10809326, -0.30590820, 0.26449585, -0.07412720, 0.13638306, -0.01062012, 0.27996826,
+ 0.04397583, -0.05557251, -0.56933594, 0.03363037, -0.00949097, 0.52642822, -0.44329834,
+ 0.28308105, -0.05499268, -0.23312378, -0.29870605, -0.05123901, 0.26831055, -0.35238647,
+ -0.30993652, 0.34646606, -0.19775391, 0.44595337, 0.13769531, 0.45358276, 0.19961548,
+ 0.42681885, 0.15722656, 0.00128174, 0.23757935, 0.40988159, 0.25164795, -0.00732422,
+ -0.12405396, -0.43420410, -0.00402832, 0.34243774, 0.36264038, 0.18807983, -0.09301758,
+ -0.10296631, 0.05532837, -0.31652832, 0.14337158, 0.35040283, 0.32540894, 0.05728149,
+ -0.12030029, -0.25942993, -0.20312500, -0.16491699, -0.46051025, -0.08004761, 0.50772095,
+ 0.16168213, 0.28439331, 0.08105469, -0.19104004, 0.38589478, -0.16400146, -0.25454712,
+ 0.20281982, -0.20730591, -0.06311035, 0.32937622, 0.15032959, -0.05340576, 0.30487061,
+ -0.11648560, 0.38009644, -0.20062256, 0.43466187, 0.01150513, 0.35754395, -0.13146973,
+ 0.67489624, 0.05212402, 0.27914429, -0.39431763, 0.75308228, -0.13366699, 0.24453735,
+ 0.42248535, -0.65905762, -0.00546265, -0.03491211, -0.13659668, -0.08294678, -0.45666504,
+ 0.27188110, 0.12731934, 0.61148071, 0.10449219, -0.28836060, 0.00091553, 0.24618530,
+ 0.13119507, 0.05685425, 0.17355347, 0.42034912, 0.08514404, 0.24536133, 0.18951416,
+ -0.19107056, -0.15036011, 0.02334595, 0.54986572, 0.32321167, -0.16104126, -0.03054810,
+ 0.43594360, 0.17309570, 0.61053467, 0.24731445, 0.33334351, 0.15240479, 0.15588379,
+ 0.36425781, -0.30407715, -0.13302612, 0.00427246, 0.04171753, -0.33178711, 0.34216309,
+ -0.12463379, -0.02764893, 0.05905151, -0.31436157, 0.16531372, 0.34542847, -0.03292847,
+ 0.12527466, -0.12313843, -0.13171387, 0.04757690, -0.45095825, -0.19085693, 0.35342407,
+ -0.23239136, -0.34387207, 0.11264038, -0.15740967, 0.05273438, 0.74942017, 0.21505737,
+ 0.08514404, -0.42391968, -0.19531250, 0.35293579, 0.25305176, 0.15731812, -0.70324707,
+ -0.21591187, 0.35604858, 0.14132690, 0.11724854, 0.15853882, -0.24597168, 0.07019043,
+ 0.02127075, 0.12658691, 0.06390381, -0.12292480, 0.15441895, -0.47640991, 0.06195068,
+ 0.58981323, -0.15151978, -0.03604126, -0.45059204, -0.01672363, -0.46997070, 0.25750732,
+ 0.18084717, 0.06661987, 0.13253784, 0.67828369, 0.11370850, 0.11325073, -0.04611206,
+ -0.07791138, -0.36544800, -0.06747437, -0.31594849, 0.16131592, 0.41983032, 0.11071777,
+ -0.36889648, 0.30963135, -0.37875366, 0.58508301, 0.00393677, 0.12338257, 0.03424072,
+ -0.21728516, -0.12838745, -0.46981812, 0.05868530, -0.25015259, 0.27407837, 0.65240479,
+ -0.34429932, -0.15179443, 0.14056396, 0.33505249, 0.28826904, 0.09921265, 0.34390259,
+ 0.13656616, -0.23608398, 0.00863647, 0.02627563, -0.19119263, 0.19775391, -0.07214355,
+ 0.07809448, 0.03454590, -0.03417969, 0.00033569, -0.23095703, 0.18673706, 0.05798340,
+ 0.03814697, -0.04318237, 0.05487061, 0.08633423, 0.55950928, -0.06347656, 0.10333252,
+ 0.25305176, 0.05853271, 0.12246704, -0.25543213, -0.34262085, -0.36437988, -0.21304321,
+ -0.05093384, 0.02777100, 0.07620239, -0.21215820, -0.09326172, 0.19021606, -0.40579224,
+ -0.01193237, 0.19845581, -0.35336304, -0.07397461, 0.20104980, 0.08615112, -0.44375610,
+ 0.11419678, 0.24453735, -0.16555786, -0.05081177, -0.01406860, 0.27893066, -0.18692017,
+ 0.07473755, 0.03451538, -0.39733887, 0.21548462, -0.22534180, -0.39651489, -0.04989624,
+ -0.57662964, 0.06390381, 0.62020874, -0.13470459, 0.04345703, -0.21862793, -0.02789307,
+ 0.51696777, -0.27587891, 0.39004517, 0.09857178, -0.00738525, 0.31317139, 0.00048828,
+ -0.46572876, 0.29531860, -0.10009766, -0.27856445, 0.03594971, 0.25048828, -0.74584961,
+ -0.25350952, -0.03302002, 0.31188965, 0.01571655, 0.46710205, 0.21591187, 0.07260132,
+ -0.42132568, -0.53900146, -0.13674927, -0.16571045, -0.34454346, 0.12359619, -0.11184692,
+ 0.00967407, 0.34576416, -0.05761719, 0.34848022, 0.17645264, -0.39395142, 0.10339355,
+ 0.18215942, 0.20697021, 0.59109497, -0.11560059, -0.07385254, 0.10397339, 0.35437012,
+ -0.22863770, 0.01794434, 0.17559814, -0.17495728, 0.12142944, 0.10928345, -1.00000000,
+ -0.01379395, 0.21237183, -0.27035522, 0.27319336, -0.37066650, 0.41354370, -0.40054321,
+ 0.00689697, 0.26321411, 0.39266968, 0.65298462, 0.41625977, -0.13909912, 0.78375244,
+ -0.30941772, 0.20169067, -0.39367676, 0.94021606, -0.24066162, 0.05557251, -0.24533081,
+ -0.05444336, -0.76754761, -0.19375610, -0.11041260, -0.17532349, 0.16006470, 0.02188110,
+ 0.17465210, -0.04342651, -0.56777954, -0.40988159, 0.26687622, 0.11700439, -0.00344849,
+ -0.05395508, 0.37426758, -0.40719604, -0.15032959, -0.01660156, 0.04196167, -0.04559326,
+ -0.12969971, 0.12011719, 0.08419800, -0.11199951, 0.35174561, 0.10275269, -0.25686646,
+ 0.48446655, 0.03225708, 0.28408813, -0.18701172, 0.36282349, -0.03280640, 0.32302856,
+ 0.17233276, 0.48269653, 0.31112671, -0.04946899, 0.12774658, 0.52685547, 0.10211182,
+ 0.05953979, 0.05999756, 0.20144653, 0.00744629, 0.27316284, 0.24377441, 0.39672852,
+ 0.01702881, -0.35513306, 0.11364746, -0.13555908, 0.48880005, -0.15417480, -0.09149170,
+ -0.02615356, 0.46246338, -0.72250366, 0.22332764, 0.23849487, -0.25686646, -0.08514404,
+ -0.02062988, -0.34494019, -0.02297974, -0.80386353, -0.08074951, -0.12689209, -0.06896973,
+ 0.24099731, -0.35650635, -0.09558105, 0.29254150, 0.23132324, -0.16726685, 0.00000000,
+ -0.24237061, 0.30899048, 0.29504395, -0.20898438, 0.17059326, -0.07672119, -0.14395142,
+ 0.05572510, 0.20602417, -0.51550293, -0.03167725, -0.48840332, -0.20425415, 0.14144897,
+ 0.07275391, -0.76669312, -0.22488403, 0.20651245, 0.03259277, 0.00085449, 0.03039551,
+ 0.47555542, 0.38351440
+};
+
+/** Noise level table for power compensation.
+ * Equ: pow(2.0f, (double)(6 - i) / 3.0f) where i = 0...15 */
+static const float pwc_levs[16] = {
+ 3.96875, 3.15625, 2.5, 2.0, 1.59375, 1.25, 1.0, 0.78125,
+ 0.625, 0.5, 0.40625, 0.3125, 0.25, 0.1875, 0.15625, 0.0
+};
+
+/** Map subband number to quant unit number. */
+static const int subband_to_qu[17] = {
+ 0, 8, 12, 16, 18, 20, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32
+};
+
+void ff_atrac3p_power_compensation(Atrac3pChanUnitCtx *ctx, int ch_index,
+ float *sp, int rng_index, int sb)
+{
+ AtracGainInfo *g1, *g2;
+ float pwcsp[ATRAC3P_SUBBAND_SAMPLES], *dst, grp_lev, qu_lev;
+ int i, gain_lev, gcv = 0, qu, nsp;
+ int swap_ch = (ctx->unit_type == CH_UNIT_STEREO && ctx->swap_channels[sb]) ? 1 : 0;
+
+ if (ctx->channels[ch_index ^ swap_ch].power_levs[subband_to_powgrp[sb]] == ATRAC3P_POWER_COMP_OFF)
+ return;
+
+ /* generate initial noise spectrum */
+ for (i = 0; i < ATRAC3P_SUBBAND_SAMPLES; i++, rng_index++)
+ pwcsp[i] = noise_tab[rng_index & 0x3FF];
+
+ /* check gain control information */
+ g1 = &ctx->channels[ch_index ^ swap_ch].gain_data[sb];
+ g2 = &ctx->channels[ch_index ^ swap_ch].gain_data_prev[sb];
+
+ gain_lev = (g1->num_points > 0) ? (6 - g1->lev_code[0]) : 0;
+
+ for (i = 0; i < g2->num_points; i++)
+ gcv = FFMAX(gcv, gain_lev - (g2->lev_code[i] - 6));
+
+ for (i = 0; i < g1->num_points; i++)
+ gcv = FFMAX(gcv, 6 - g1->lev_code[i]);
+
+ grp_lev = pwc_levs[ctx->channels[ch_index ^ swap_ch].power_levs[subband_to_powgrp[sb]]] / (1 << gcv);
+
+ /* skip the lowest two quant units (frequencies 0...351 Hz) for subband 0 */
+ for (qu = subband_to_qu[sb] + (!sb ? 2 : 0); qu < subband_to_qu[sb + 1]; qu++) {
+ if (ctx->channels[ch_index].qu_wordlen[qu] <= 0)
+ continue;
+
+ qu_lev = ff_atrac3p_sf_tab[ctx->channels[ch_index].qu_sf_idx[qu]] *
+ ff_atrac3p_mant_tab[ctx->channels[ch_index].qu_wordlen[qu]] /
+ (1 << ctx->channels[ch_index].qu_wordlen[qu]) * grp_lev;
+
+ dst = &sp[ff_atrac3p_qu_to_spec_pos[qu]];
+ nsp = ff_atrac3p_qu_to_spec_pos[qu + 1] - ff_atrac3p_qu_to_spec_pos[qu];
+
+ for (i = 0; i < nsp; i++)
+ dst[i] += pwcsp[i] * qu_lev;
+ }
+}
+
+void ff_atrac3p_imdct(AVFloatDSPContext *fdsp, FFTContext *mdct_ctx, float *pIn,
+ float *pOut, int wind_id, int sb)
+{
+ int i;
+
+ if (sb & 1)
+ for (i = 0; i < ATRAC3P_SUBBAND_SAMPLES / 2; i++)
+ FFSWAP(float, pIn[i], pIn[ATRAC3P_SUBBAND_SAMPLES - 1 - i]);
+
+ mdct_ctx->imdct_calc(mdct_ctx, pOut, pIn);
+
+ /* Perform windowing on the output.
+ * ATRAC3+ uses two different MDCT windows:
+ * - The first one is just the plain sine window of size 256
+ * - The 2nd one is the plain sine window of size 128
+ * wrapped into zero (at the start) and one (at the end) regions.
+ * Both regions are 32 samples long. */
+ if (wind_id & 2) { /* 1st half: steep window */
+ memset(pOut, 0, sizeof(float) * 32);
+ fdsp->vector_fmul(&pOut[32], &pOut[32], ff_sine_64, 64);
+ } else /* 1st half: simple sine window */
+ fdsp->vector_fmul(pOut, pOut, ff_sine_128, ATRAC3P_MDCT_SIZE / 2);
+
+ if (wind_id & 1) { /* 2nd half: steep window */
+ fdsp->vector_fmul_reverse(&pOut[160], &pOut[160], ff_sine_64, 64);
+ memset(&pOut[224], 0, sizeof(float) * 32);
+ } else /* 2nd half: simple sine window */
+ fdsp->vector_fmul_reverse(&pOut[128], &pOut[128], ff_sine_128,
+ ATRAC3P_MDCT_SIZE / 2);
+}
+
+/* lookup table for fast modulo 23 op required for cyclic buffers of the IPQF */
+static const int mod23_lut[26] = {
+ 23, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11,
+ 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 0
+};
+
+/* First half of the 384-tap IPQF filtering coefficients. */
+static const float ipqf_coeffs1[ATRAC3P_PQF_FIR_LEN][16] = {
+ { -5.8336207e-7, -8.0604229e-7, -4.2005411e-7, -4.4400572e-8,
+ 3.226247e-8, 3.530856e-8, 1.2660377e-8, 0.000010516783,
+ -0.000011838618, 6.005389e-7, 0.0000014333754, 0.0000023108685,
+ 0.0000032569742, 0.0000046192422, 0.0000063894258, 0.0000070302972 },
+ { -0.0000091622824, -0.000010502935, -0.0000079212787, -0.0000041712024,
+ -0.0000026336629, -0.0000015432918, -5.7168614e-7, 0.0000018111954,
+ 0.000023530851, 0.00002780562, 0.000032302323, 0.000036968919,
+ 0.000041575615, 0.000045337845, 0.000046043948, 0.000048585582 },
+ { -0.000064464548, -0.000068306952, -0.000073081472, -0.00007612785,
+ -0.000074850752, -0.000070208509, -0.000062285151, -0.000058270442,
+ -0.000056296329, -0.000049888811, -0.000035615325, -0.000018532943,
+ 0.0000016657353, 0.00002610587, 0.000053397067, 0.00008079566 },
+ { -0.00054488552, -0.00052537228, -0.00049731287, -0.00045778,
+ -0.00040612387, -0.00034301577, -0.00026866337, -0.00018248901,
+ -0.000084307925, 0.000025081157, 0.00014135583, 0.00026649953,
+ 0.00039945057, 0.00053928449, 0.00068422867, 0.00083093712 },
+ { -0.0014771431, -0.001283227, -0.0010566821, -0.00079780724,
+ -0.00050782406, -0.00018855913, 0.00015771533, 0.00052769453,
+ 0.00091862219, 0.001326357, 0.0017469483, 0.0021754825,
+ 0.0026067684, 0.0030352892, 0.0034549395, 0.0038591374 },
+ { -0.0022995141, -0.001443546, -0.00049266568, 0.00055068987,
+ 0.001682895, 0.0028992873, 0.0041943151, 0.0055614738,
+ 0.0069935122, 0.0084823566, 0.010018963, 0.011593862,
+ 0.013196872, 0.014817309, 0.016444042, 0.018065533 },
+ { -0.034426283, -0.034281436, -0.033992987, -0.033563249,
+ -0.032995768, -0.032295227, -0.031467363, -0.030518902,
+ -0.02945766, -0.028291954, -0.027031265, -0.025685543,
+ -0.024265358, -0.022781773, -0.021246184, -0.019670162 },
+ { -0.0030586775, -0.0037203205, -0.0042847847, -0.0047529764,
+ -0.0051268316, -0.0054091476, -0.0056034233, -0.005714261,
+ -0.0057445862, -0.0057025906, -0.0055920109, -0.0054194843,
+ -0.0051914565, -0.0049146507, -0.0045959447, -0.0042418269 },
+ { -0.0016376863, -0.0017651899, -0.0018608454, -0.0019252141,
+ -0.0019593791, -0.0019653172, -0.0019450618, -0.0018990048,
+ -0.00183808, -0.0017501717, -0.0016481078, -0.0015320742,
+ -0.0014046903, -0.0012685474, -0.001125814, -0.00097943726 },
+ { -0.00055432378, -0.00055472925, -0.00054783461, -0.00053276919,
+ -0.00051135791, -0.00048466062, -0.00045358928, -0.00042499689,
+ -0.00036942671, -0.0003392619, -0.00030001783, -0.00025986304,
+ -0.0002197204, -0.00018116167, -0.00014691355, -0.00011279432 },
+ { -0.000064147389, -0.00006174868, -0.000054267788, -0.000047133824,
+ -0.000042927582, -0.000039477309, -0.000036340745, -0.000029687517,
+ -0.000049787737, -0.000041577889, -0.000033864744, -0.000026534748,
+ -0.000019841305, -0.000014789486, -0.000013131184, -0.0000099198869 },
+ { -0.0000062990207, -0.0000072701259, -0.000011984052, -0.000017348082,
+ -0.000019907106, -0.000021348773, -0.000021961965, -0.000012203576,
+ -0.000010840992, 4.6299544e-7, 5.2588763e-7, 2.7792686e-7,
+ -2.3649704e-7, -0.0000010897784, -9.171448e-7, -5.22682e-7 }
+};
+
+/* Second half of the 384-tap IPQF filtering coefficients. */
+static const float ipqf_coeffs2[ATRAC3P_PQF_FIR_LEN][16] = {
+ { 5.22682e-7, 9.171448e-7, 0.0000010897784, 2.3649704e-7,
+ -2.7792686e-7, -5.2588763e-7, -4.6299544e-7, 0.000010840992,
+ -0.000012203576, -0.000021961965, -0.000021348773, -0.000019907106,
+ -0.000017348082, -0.000011984052, -0.0000072701259, -0.0000062990207 },
+ { 0.0000099198869, 0.000013131184, 0.000014789486, 0.000019841305,
+ 0.000026534748, 0.000033864744, 0.000041577889, 0.000049787737,
+ -0.000029687517, -0.000036340745, -0.000039477309, -0.000042927582,
+ -0.000047133824, -0.000054267788, -0.00006174868, -0.000064147389 },
+ { 0.00011279432, 0.00014691355, 0.00018116167, 0.0002197204,
+ 0.00025986304, 0.00030001783, 0.0003392619, 0.00036942671,
+ -0.00042499689, -0.00045358928, -0.00048466062, -0.00051135791,
+ -0.00053276919, -0.00054783461, -0.00055472925, -0.00055432378 },
+ { 0.00097943726, 0.001125814, 0.0012685474, 0.0014046903,
+ 0.0015320742, 0.0016481078, 0.0017501717, 0.00183808,
+ -0.0018990048, -0.0019450618, -0.0019653172, -0.0019593791,
+ -0.0019252141, -0.0018608454, -0.0017651899, -0.0016376863 },
+ { 0.0042418269, 0.0045959447, 0.0049146507, 0.0051914565,
+ 0.0054194843, 0.0055920109, 0.0057025906, 0.0057445862,
+ -0.005714261, -0.0056034233, -0.0054091476, -0.0051268316,
+ -0.0047529764, -0.0042847847, -0.0037203205, -0.0030586775 },
+ { 0.019670162, 0.021246184, 0.022781773, 0.024265358,
+ 0.025685543, 0.027031265, 0.028291954, 0.02945766,
+ -0.030518902, -0.031467363, -0.032295227, -0.032995768,
+ -0.033563249, -0.033992987, -0.034281436, -0.034426283 },
+ { -0.018065533, -0.016444042, -0.014817309, -0.013196872,
+ -0.011593862, -0.010018963, -0.0084823566, -0.0069935122,
+ 0.0055614738, 0.0041943151, 0.0028992873, 0.001682895,
+ 0.00055068987, -0.00049266568, -0.001443546, -0.0022995141 },
+ { -0.0038591374, -0.0034549395, -0.0030352892, -0.0026067684,
+ -0.0021754825, -0.0017469483, -0.001326357, -0.00091862219,
+ 0.00052769453, 0.00015771533, -0.00018855913, -0.00050782406,
+ -0.00079780724, -0.0010566821, -0.001283227, -0.0014771431 },
+ { -0.00083093712, -0.00068422867, -0.00053928449, -0.00039945057,
+ -0.00026649953, -0.00014135583, -0.000025081157, 0.000084307925,
+ -0.00018248901, -0.00026866337, -0.00034301577, -0.00040612387,
+ -0.00045778, -0.00049731287, -0.00052537228, -0.00054488552 },
+ { -0.00008079566, -0.000053397067, -0.00002610587, -0.0000016657353,
+ 0.000018532943, 0.000035615325, 0.000049888811, 0.000056296329,
+ -0.000058270442, -0.000062285151, -0.000070208509, -0.000074850752,
+ -0.00007612785, -0.000073081472, -0.000068306952, -0.000064464548 },
+ { -0.000048585582, -0.000046043948, -0.000045337845, -0.000041575615,
+ -0.000036968919, -0.000032302323, -0.00002780562, -0.000023530851,
+ 0.0000018111954, -5.7168614e-7, -0.0000015432918, -0.0000026336629,
+ -0.0000041712024, -0.0000079212787, -0.000010502935, -0.0000091622824 },
+ { -0.0000070302972, -0.0000063894258, -0.0000046192422, -0.0000032569742,
+ -0.0000023108685, -0.0000014333754, -6.005389e-7, 0.000011838618,
+ 0.000010516783, 1.2660377e-8, 3.530856e-8, 3.226247e-8,
+ -4.4400572e-8, -4.2005411e-7, -8.0604229e-7, -5.8336207e-7 }
+};
+
+void ff_atrac3p_ipqf(FFTContext *dct_ctx, Atrac3pIPQFChannelCtx *hist,
+ const float *in, float *out)
+{
+ int i, s, sb, t, pos_now, pos_next;
+ DECLARE_ALIGNED(32, float, idct_in)[ATRAC3P_SUBBANDS];
+ DECLARE_ALIGNED(32, float, idct_out)[ATRAC3P_SUBBANDS];
+
+ memset(out, 0, ATRAC3P_FRAME_SAMPLES * sizeof(*out));
+
+ for (s = 0; s < ATRAC3P_SUBBAND_SAMPLES; s++) {
+ /* pick up one sample from each subband */
+ for (sb = 0; sb < ATRAC3P_SUBBANDS; sb++)
+ idct_in[sb] = in[sb * ATRAC3P_SUBBAND_SAMPLES + s];
+
+ /* Calculate the sine and cosine part of the PQF using IDCT-IV */
+ dct_ctx->imdct_half(dct_ctx, idct_out, idct_in);
+
+ /* append the result to the history */
+ for (i = 0; i < 8; i++) {
+ hist->buf1[hist->pos][i] = idct_out[i + 8];
+ hist->buf2[hist->pos][i] = idct_out[7 - i];
+ }
+
+ pos_now = hist->pos;
+ pos_next = mod23_lut[pos_now + 2]; // pos_next = (pos_now + 1) % 23;
+
+ for (t = 0; t < ATRAC3P_PQF_FIR_LEN; t++) {
+ for (i = 0; i < 8; i++) {
+ out[s * 16 + i + 0] += hist->buf1[pos_now][i] * ipqf_coeffs1[t][i] +
+ hist->buf2[pos_next][i] * ipqf_coeffs2[t][i];
+ out[s * 16 + i + 8] += hist->buf1[pos_now][7 - i] * ipqf_coeffs1[t][i + 8] +
+ hist->buf2[pos_next][7 - i] * ipqf_coeffs2[t][i + 8];
+ }
+
+ pos_now = mod23_lut[pos_next + 2]; // pos_now = (pos_now + 2) % 23;
+ pos_next = mod23_lut[pos_now + 2]; // pos_next = (pos_next + 2) % 23;
+ }
+
+ hist->pos = mod23_lut[hist->pos]; // hist->pos = (hist->pos - 1) % 23;
+ }
+}
diff --git a/libavcodec/version.h b/libavcodec/version.h
index 06af735728..643694733c 100644
--- a/libavcodec/version.h
+++ b/libavcodec/version.h
@@ -29,7 +29,7 @@
#include "libavutil/version.h"
#define LIBAVCODEC_VERSION_MAJOR 55
-#define LIBAVCODEC_VERSION_MINOR 46
+#define LIBAVCODEC_VERSION_MINOR 47
#define LIBAVCODEC_VERSION_MICRO 100
#define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-25 14:09:00 +0000