From e6f0bb65270be51ea43345a28f8e4b1a728f7d0e Mon Sep 17 00:00:00 2001 From: Maxim Polijakowski Date: Fri, 3 Jan 2014 23:23:11 +0100 Subject: [PATCH] ATRAC3+ decoder Cleanup by Diego Biurrun. Signed-off-by: Kostya Shishkov --- Changelog | 1 + configure | 1 + doc/general.texi | 1 + libavcodec/Makefile | 2 + libavcodec/allcodecs.c | 1 + libavcodec/atrac3plus.c | 1818 ++++++++++++++++++++++++++++++++ libavcodec/atrac3plus.h | 242 +++++ libavcodec/atrac3plus_data.h | 1914 ++++++++++++++++++++++++++++++++++ libavcodec/atrac3plusdec.c | 387 +++++++ libavcodec/atrac3plusdsp.c | 638 ++++++++++++ libavcodec/version.h | 2 +- libavformat/omadec.c | 3 +- 12 files changed, 5007 insertions(+), 3 deletions(-) create mode 100644 libavcodec/atrac3plus.c create mode 100644 libavcodec/atrac3plus.h create mode 100644 libavcodec/atrac3plus_data.h create mode 100644 libavcodec/atrac3plusdec.c create mode 100644 libavcodec/atrac3plusdsp.c diff --git a/Changelog b/Changelog index efd474a5d8..c97d4e5e29 100644 --- a/Changelog +++ b/Changelog @@ -53,6 +53,7 @@ version 10: - stereoscopic 3d metadata handling - png standalone parser - WebP encoding via libwebp +- ATRAC3+ decoder version 9: diff --git a/configure b/configure index e9fc08c89e..d16bc6a9c8 100755 --- a/configure +++ b/configure @@ -1630,6 +1630,7 @@ asv2_decoder_select="dsputil" asv2_encoder_select="dsputil" atrac1_decoder_select="mdct sinewin" atrac3_decoder_select="mdct" +atrac3p_decoder_select="mdct sinewin" bink_decoder_select="dsputil hpeldsp" binkaudio_dct_decoder_select="mdct rdft dct sinewin" binkaudio_rdft_decoder_select="mdct rdft sinewin" diff --git a/doc/general.texi b/doc/general.texi index a5282804b4..9fa79f57b5 100644 --- a/doc/general.texi +++ b/doc/general.texi @@ -729,6 +729,7 @@ 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 Delphine Software International CIN audio @tab @tab X diff --git a/libavcodec/Makefile b/libavcodec/Makefile index fd7808e5a8..7a978bb47e 100644 --- a/libavcodec/Makefile +++ b/libavcodec/Makefile @@ -107,6 +107,8 @@ 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_AVS_DECODER) += avs.o diff --git a/libavcodec/allcodecs.c b/libavcodec/allcodecs.c index 5a6c914884..2e56ec1956 100644 --- a/libavcodec/allcodecs.c +++ b/libavcodec/allcodecs.c @@ -287,6 +287,7 @@ 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..f337fabc8d --- /dev/null +++ b/libavcodec/atrac3plus.c @@ -0,0 +1,1818 @@ +/* + * ATRAC3+ compatible decoder + * + * Copyright (c) 2010-2013 Maxim Poliakovski + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; 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(AVCodec *codec) +{ + 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] wtab_idx index of the table of weights + * @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]; + + for (ch_num = 0; ch_num < num_channels; ch_num++) + memset(ctx->channels[ch_num].tones_info, 0, + sizeof(*ctx->channels[ch_num].tones_info) * ATRAC3P_SUBBANDS); + + 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..e56c4441b6 --- /dev/null +++ b/libavcodec/atrac3plus.h @@ -0,0 +1,242 @@ +/* + * ATRAC3+ compatible decoder + * + * Copyright (c) 2010-2013 Maxim Poliakovski + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; 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 + +#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. + * + * @param[in] codec ptr to the AVCodec + */ +void ff_atrac3p_init_vlcs(AVCodec *codec); + +/** + * 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_num 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..5026a59930 --- /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 Libav. + * + * Libav 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. + * + * Libav 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 Libav; 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 +#include + +/** 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..dbdb3b3194 --- /dev/null +++ b/libavcodec/atrac3plusdec.c @@ -0,0 +1,387 @@ +/* + * ATRAC3+ compatible decoder + * + * Copyright (c) 2010-2013 Maxim Poliakovski + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; 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 +#include + +#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; + + if (!avctx->block_align) { + av_log(avctx, AV_LOG_ERROR, "block_align is not set\n"); + return AVERROR(EINVAL); + } + + 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, + .init_static_data = ff_atrac3p_init_vlcs, + .close = atrac3p_decode_close, + .decode = atrac3p_decode_frame, +}; diff --git a/libavcodec/atrac3plusdsp.c b/libavcodec/atrac3plusdsp.c new file mode 100644 index 0000000000..468f098383 --- /dev/null +++ b/libavcodec/atrac3plusdsp.c @@ -0,0 +1,638 @@ +/* + * ATRAC3+ compatible decoder + * + * Copyright (c) 2010-2013 Maxim Poliakovski + * + * This file is part of Libav. + * + * Libav 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. + * + * Libav 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 Libav; 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 + +#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] phase_shift flag indicates 180° phase shift + * @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, 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-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 73c786dc04..2aee76ef90 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 31 +#define LIBAVCODEC_VERSION_MINOR 32 #define LIBAVCODEC_VERSION_MICRO 0 #define LIBAVCODEC_VERSION_INT AV_VERSION_INT(LIBAVCODEC_VERSION_MAJOR, \ diff --git a/libavformat/omadec.c b/libavformat/omadec.c index 709a60b6ff..6c27458545 100644 --- a/libavformat/omadec.c +++ b/libavformat/omadec.c @@ -37,7 +37,7 @@ * - Sound data organized in packets follow the EA3 header * (can be encrypted using the Sony DRM!). * - * CODEC SUPPORT: Only ATRAC3 codec is currently supported! + * Supported decoders: ATRAC3, ATRAC3+, MP3, LPCM */ #include "libavutil/channel_layout.h" @@ -386,7 +386,6 @@ static int oma_read_header(AVFormatContext *s) st->codec->sample_rate = samplerate; st->codec->bit_rate = samplerate * framesize * 8 / 2048; avpriv_set_pts_info(st, 64, 1, samplerate); - av_log(s, AV_LOG_ERROR, "Unsupported codec ATRAC3+!\n"); break; case OMA_CODECID_MP3: st->need_parsing = AVSTREAM_PARSE_FULL;