From afa90da5fb4715fcc974f34feab3a90400925845 Mon Sep 17 00:00:00 2001 From: Zdenek Kabelac Date: Mon, 6 May 2002 16:40:43 +0000 Subject: [PATCH] * replaced with liba52 Originally committed as revision 447 to svn://svn.ffmpeg.org/ffmpeg/trunk --- libavcodec/libac3/ac3.h | 108 ------- libavcodec/libac3/ac3_internal.h | 51 --- libavcodec/libac3/bit_allocate.c | 252 --------------- libavcodec/libac3/bitstream.c | 74 ----- libavcodec/libac3/bitstream.h | 68 ---- libavcodec/libac3/downmix.c | 530 ------------------------------ libavcodec/libac3/imdct.c | 404 ----------------------- libavcodec/libac3/parse.c | 682 --------------------------------------- libavcodec/libac3/tables.h | 250 -------------- 9 files changed, 2419 deletions(-) delete mode 100644 libavcodec/libac3/ac3.h delete mode 100644 libavcodec/libac3/ac3_internal.h delete mode 100644 libavcodec/libac3/bit_allocate.c delete mode 100644 libavcodec/libac3/bitstream.c delete mode 100644 libavcodec/libac3/bitstream.h delete mode 100644 libavcodec/libac3/downmix.c delete mode 100644 libavcodec/libac3/imdct.c delete mode 100644 libavcodec/libac3/parse.c delete mode 100644 libavcodec/libac3/tables.h diff --git a/libavcodec/libac3/ac3.h b/libavcodec/libac3/ac3.h deleted file mode 100644 index 117071e..0000000 --- a/libavcodec/libac3/ac3.h +++ /dev/null @@ -1,108 +0,0 @@ -/* - * ac3.h - * - * Copyright (C) Aaron Holtzman - May 1999 - * - * This file is part of ac3dec, a free Dolby AC-3 stream decoder. - * - * ac3dec is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * ac3dec is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Make; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - */ - -typedef struct ac3_ba_s { - uint16_t fsnroffst; // fine SNR offset - uint16_t fgaincod; // fast gain - uint16_t deltbae; // delta bit allocation exists - int8_t deltba[50]; // per-band delta bit allocation -} ac3_ba_t; - -typedef struct ac3_state_s { - uint8_t fscod; // sample rate - uint8_t halfrate; // halfrate factor - uint8_t acmod; // coded channels - float clev; // centre channel mix level - float slev; // surround channels mix level - uint8_t lfeon; // coded lfe channel - - int output; // type of output - float level; // output level - float bias; // output bias - - uint16_t cplinu; // coupling in use - uint16_t chincpl[5]; // channel coupled - uint16_t phsflginu; // phase flags in use (stereo only) - uint16_t cplbndstrc[18]; // coupling band structure - uint16_t cplstrtmant; // coupling channel start mantissa - uint16_t cplendmant; // coupling channel end mantissa - float cplco[5][18]; // coupling coordinates - - // derived information - uint16_t cplstrtbnd; // coupling start band (for bit allocation) - uint16_t ncplbnd; // number of coupling bands - - uint16_t rematflg[4]; // stereo rematrixing - - uint16_t endmant[5]; // channel end mantissa - - uint8_t cpl_exp[256]; // decoded coupling channel exponents - uint8_t fbw_exp[5][256]; // decoded channel exponents - uint8_t lfe_exp[7]; // decoded lfe channel exponents - - uint16_t sdcycod; // slow decay - uint16_t fdcycod; // fast decay - uint16_t sgaincod; // slow gain - uint16_t dbpbcod; // dB per bit - encodes the dbknee value - uint16_t floorcod; // masking floor - - uint16_t csnroffst; // coarse SNR offset - ac3_ba_t cplba; // coupling bit allocation parameters - ac3_ba_t ba[5]; // channel bit allocation parameters - ac3_ba_t lfeba; // lfe bit allocation parameters - - uint16_t cplfleak; // coupling fast leak init - uint16_t cplsleak; // coupling slow leak init - - // derived bit allocation information - int8_t fbw_bap[5][256]; - int8_t cpl_bap[256]; - int8_t lfe_bap[7]; -} ac3_state_t; - -/* samples work structure */ -typedef float stream_samples_t[6][256]; - -#define AC3_CHANNEL 0 -#define AC3_MONO 1 -#define AC3_STEREO 2 -#define AC3_3F 3 -#define AC3_2F1R 4 -#define AC3_3F1R 5 -#define AC3_2F2R 6 -#define AC3_3F2R 7 -#define AC3_CHANNEL1 8 -#define AC3_CHANNEL2 9 -#define AC3_DOLBY 10 -#define AC3_CHANNEL_MASK 15 - -#define AC3_LFE 16 -#define AC3_ADJUST_LEVEL 32 - -void ac3_init (void); -int ac3_syncinfo (uint8_t * buf, int * flags, - int * sample_rate, int * bit_rate); -int ac3_frame (ac3_state_t * state, uint8_t * buf, int * flags, - float * level, float bias); -int ac3_block (ac3_state_t * state); diff --git a/libavcodec/libac3/ac3_internal.h b/libavcodec/libac3/ac3_internal.h deleted file mode 100644 index 1dce513..0000000 --- a/libavcodec/libac3/ac3_internal.h +++ /dev/null @@ -1,51 +0,0 @@ -/* - * ac3_internal.h - * - * Copyright (C) Aaron Holtzman - May 1999 - * - * This file is part of ac3dec, a free Dolby AC-3 stream decoder. - * - * ac3dec is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * ac3dec is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Make; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#define LEVEL_PLUS3DB 1.4142135623730951 -#define LEVEL_3DB 0.7071067811865476 -#define LEVEL_45DB 0.5946035575013605 -#define LEVEL_6DB 0.5 - -/* Exponent strategy constants */ -#define EXP_REUSE (0) -#define EXP_D15 (1) -#define EXP_D25 (2) -#define EXP_D45 (3) - -/* Delta bit allocation constants */ -#define DELTA_BIT_REUSE (0) -#define DELTA_BIT_NEW (1) -#define DELTA_BIT_NONE (2) -#define DELTA_BIT_RESERVED (3) - -void bit_allocate (ac3_state_t * state, ac3_ba_t * ba, int bndstart, - int start, int end, int fastleak, int slowleak, - uint8_t * exp, int8_t * bap); - -int downmix_init (int input, int flags, float * level, float clev, float slev); -void downmix (float * samples, int acmod, int output, float level, float bias, - float clev, float slev); - -void imdct_init (void); -extern void (* imdct_256) (float data[], float delay[]); -extern void (* imdct_512) (float data[], float delay[]); diff --git a/libavcodec/libac3/bit_allocate.c b/libavcodec/libac3/bit_allocate.c deleted file mode 100644 index 2c76b93..0000000 --- a/libavcodec/libac3/bit_allocate.c +++ /dev/null @@ -1,252 +0,0 @@ -/* - * bit_allocate.c - * - * Copyright (C) Aaron Holtzman - May 1999 - * - * This file is part of ac3dec, a free Dolby AC-3 stream decoder. - * - * ac3dec is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * ac3dec is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Make; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ -#include "../common.h" -#include "ac3.h" -#include "ac3_internal.h" - -static int hthtab[3][50] = { - {0x730, 0x730, 0x7c0, 0x800, 0x820, 0x840, 0x850, 0x850, 0x860, 0x860, - 0x860, 0x860, 0x860, 0x870, 0x870, 0x870, 0x880, 0x880, 0x890, 0x890, - 0x8a0, 0x8a0, 0x8b0, 0x8b0, 0x8c0, 0x8c0, 0x8d0, 0x8e0, 0x8f0, 0x900, - 0x910, 0x910, 0x910, 0x910, 0x900, 0x8f0, 0x8c0, 0x870, 0x820, 0x7e0, - 0x7a0, 0x770, 0x760, 0x7a0, 0x7c0, 0x7c0, 0x6e0, 0x400, 0x3c0, 0x3c0}, - {0x710, 0x710, 0x7a0, 0x7f0, 0x820, 0x830, 0x840, 0x850, 0x850, 0x860, - 0x860, 0x860, 0x860, 0x860, 0x870, 0x870, 0x870, 0x880, 0x880, 0x880, - 0x890, 0x890, 0x8a0, 0x8a0, 0x8b0, 0x8b0, 0x8c0, 0x8c0, 0x8e0, 0x8f0, - 0x900, 0x910, 0x910, 0x910, 0x910, 0x900, 0x8e0, 0x8b0, 0x870, 0x820, - 0x7e0, 0x7b0, 0x760, 0x770, 0x7a0, 0x7c0, 0x780, 0x5d0, 0x3c0, 0x3c0}, - {0x680, 0x680, 0x750, 0x7b0, 0x7e0, 0x810, 0x820, 0x830, 0x840, 0x850, - 0x850, 0x850, 0x860, 0x860, 0x860, 0x860, 0x860, 0x860, 0x860, 0x860, - 0x870, 0x870, 0x870, 0x870, 0x880, 0x880, 0x880, 0x890, 0x8a0, 0x8b0, - 0x8c0, 0x8d0, 0x8e0, 0x8f0, 0x900, 0x910, 0x910, 0x910, 0x900, 0x8f0, - 0x8d0, 0x8b0, 0x840, 0x7f0, 0x790, 0x760, 0x7a0, 0x7c0, 0x7b0, 0x720} -}; - -static int8_t baptab[305] = { - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, - 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, // 93 padding entries - - 16, 16, 16, 16, 16, 16, 16, 16, 16, 14, 14, 14, 14, 14, 14, 14, - 14, 12, 12, 12, 12, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 9, - 9, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, - 5, 4, 4, -3, -3, 3, 3, 3, -2, -2, -1, -1, -1, -1, -1, 0, - - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0 // 148 padding entries -}; - -static int bndtab[30] = {21, 22, 23, 24, 25, 26, 27, 28, 31, 34, - 37, 40, 43, 46, 49, 55, 61, 67, 73, 79, - 85, 97, 109, 121, 133, 157, 181, 205, 229, 253}; - -static int8_t latab[256] = { - -64, -63, -62, -61, -60, -59, -58, -57, -56, -55, -54, -53, - -52, -52, -51, -50, -49, -48, -47, -47, -46, -45, -44, -44, - -43, -42, -41, -41, -40, -39, -38, -38, -37, -36, -36, -35, - -35, -34, -33, -33, -32, -32, -31, -30, -30, -29, -29, -28, - -28, -27, -27, -26, -26, -25, -25, -24, -24, -23, -23, -22, - -22, -21, -21, -21, -20, -20, -19, -19, -19, -18, -18, -18, - -17, -17, -17, -16, -16, -16, -15, -15, -15, -14, -14, -14, - -13, -13, -13, -13, -12, -12, -12, -12, -11, -11, -11, -11, - -10, -10, -10, -10, -10, -9, -9, -9, -9, -9, -8, -8, - -8, -8, -8, -8, -7, -7, -7, -7, -7, -7, -6, -6, - -6, -6, -6, -6, -6, -6, -5, -5, -5, -5, -5, -5, - -5, -5, -4, -4, -4, -4, -4, -4, -4, -4, -4, -4, - -4, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, -3, - -3, -3, -3, -2, -2, -2, -2, -2, -2, -2, -2, -2, - -2, -2, -2, -2, -2, -2, -2, -2, -2, -2, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, - -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 0, 0, 0, 0 -}; - -#define UPDATE_LEAK() \ -do { \ - fastleak += fdecay; \ - if (fastleak > psd + fgain) \ - fastleak = psd + fgain; \ - slowleak += sdecay; \ - if (slowleak > psd + sgain) \ - slowleak = psd + sgain; \ -} while (0) - -#define COMPUTE_MASK() \ -do { \ - if (psd > dbknee) \ - mask -= (psd - dbknee) >> 2; \ - if (mask > hth [i >> halfrate]) \ - mask = hth [i >> halfrate]; \ - mask -= snroffset + 128 * deltba[i]; \ - mask = (mask > 0) ? 0 : ((-mask) >> 5); \ - mask -= floor; \ -} while (0) - -void bit_allocate (ac3_state_t * state, ac3_ba_t * ba, int bndstart, - int start, int end, int fastleak, int slowleak, - uint8_t * exp, int8_t * bap) -{ - static int slowgain[4] = {0x540, 0x4d8, 0x478, 0x410}; - static int dbpbtab[4] = {0xc00, 0x500, 0x300, 0x100}; - static int floortab[8] = {0x910, 0x950, 0x990, 0x9d0, - 0xa10, 0xa90, 0xb10, 0x1400}; - - int i, j; - int fdecay, fgain, sdecay, sgain, dbknee, floor, snroffset; - int psd, mask; - int8_t * deltba; - int * hth; - int halfrate; - - halfrate = state->halfrate; - fdecay = (63 + 20 * state->fdcycod) >> halfrate; - fgain = 128 + 128 * ba->fgaincod; - sdecay = (15 + 2 * state->sdcycod) >> halfrate; - sgain = slowgain[state->sgaincod]; - dbknee = dbpbtab[state->dbpbcod]; - hth = hthtab[state->fscod]; - /* - * if there is no delta bit allocation, make deltba point to an area - * known to contain zeroes. baptab+156 here. - */ - deltba = (ba->deltbae == DELTA_BIT_NONE) ? baptab + 156 : ba->deltba; - floor = floortab[state->floorcod]; - snroffset = 960 - 64 * state->csnroffst - 4 * ba->fsnroffst + floor; - floor >>= 5; - - i = bndstart; - j = start; - if (start == 0) { // not the coupling channel - int lowcomp; - - lowcomp = 0; - j = end - 1; - do { - if (i < j) { - if (exp[i+1] == exp[i] - 2) - lowcomp = 384; - else if (lowcomp && (exp[i+1] > exp[i])) - lowcomp -= 64; - } - psd = 128 * exp[i]; - mask = psd + fgain + lowcomp; - COMPUTE_MASK (); - bap[i++] = (baptab+156)[mask + 4 * exp[i]]; - } while ((i < 3) || ((i < 7) && (exp[i] > exp[i-1]))); - fastleak = psd + fgain; - slowleak = psd + sgain; - - while (i < 7) { - if (i < j) { - if (exp[i+1] == exp[i] - 2) - lowcomp = 384; - else if (lowcomp && (exp[i+1] > exp[i])) - lowcomp -= 64; - } - psd = 128 * exp[i]; - UPDATE_LEAK (); - mask = ((fastleak + lowcomp < slowleak) ? - fastleak + lowcomp : slowleak); - COMPUTE_MASK (); - bap[i++] = (baptab+156)[mask + 4 * exp[i]]; - } - - if (end == 7) // lfe channel - return; - - do { - if (exp[i+1] == exp[i] - 2) - lowcomp = 320; - else if (lowcomp && (exp[i+1] > exp[i])) - lowcomp -= 64; - psd = 128 * exp[i]; - UPDATE_LEAK (); - mask = ((fastleak + lowcomp < slowleak) ? - fastleak + lowcomp : slowleak); - COMPUTE_MASK (); - bap[i++] = (baptab+156)[mask + 4 * exp[i]]; - } while (i < 20); - - while (lowcomp > 128) { // two iterations maximum - lowcomp -= 128; - psd = 128 * exp[i]; - UPDATE_LEAK (); - mask = ((fastleak + lowcomp < slowleak) ? - fastleak + lowcomp : slowleak); - COMPUTE_MASK (); - bap[i++] = (baptab+156)[mask + 4 * exp[i]]; - } - j = i; - } - - do { - int startband, endband; - - startband = j; - endband = ((bndtab-20)[i] < end) ? (bndtab-20)[i] : end; - psd = 128 * exp[j++]; - while (j < endband) { - int next, delta; - - next = 128 * exp[j++]; - delta = next - psd; - switch (delta >> 9) { - case -6: case -5: case -4: case -3: case -2: - psd = next; - break; - case -1: - psd = next + latab[(-delta) >> 1]; - break; - case 0: - psd += latab[delta >> 1]; - break; - } - } - // minpsd = -289 - UPDATE_LEAK (); - mask = (fastleak < slowleak) ? fastleak : slowleak; - COMPUTE_MASK (); - i++; - j = startband; - do { - // max(mask+4*exp)=147=-(minpsd+fgain-deltba-snroffset)>>5+4*exp - // min(mask+4*exp)=-156=-(sgain-deltba-snroffset)>>5 - bap[j++] = (baptab+156)[mask + 4 * exp[j]]; - } while (j < endband); - } while (j < end); -} diff --git a/libavcodec/libac3/bitstream.c b/libavcodec/libac3/bitstream.c deleted file mode 100644 index 70aad3d..0000000 --- a/libavcodec/libac3/bitstream.c +++ /dev/null @@ -1,74 +0,0 @@ -/* - * bitstream.c - * - * Copyright (C) Aaron Holtzman - Dec 1999 - * - * This file is part of ac3dec, a free AC-3 audio decoder - * - * ac3dec is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * ac3dec is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Make; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -#include "../common.h" -#include "ac3.h" -#include "ac3_internal.h" -#include "bitstream.h" - -#define BUFFER_SIZE 4096 - -static uint8_t *buffer_start; - -uint32_t bits_left; -uint32_t current_word; - -void bitstream_set_ptr (uint8_t * buf) -{ - buffer_start = buf; - bits_left = 0; -} - -static inline void -bitstream_fill_current() -{ - current_word = *((uint32_t*)buffer_start)++; - current_word = swab32(current_word); -} - -// -// The fast paths for _get is in the -// bitstream.h header file so it can be inlined. -// -// The "bottom half" of this routine is suffixed _bh -// -// -ah -// - -uint32_t -bitstream_get_bh(uint32_t num_bits) -{ - uint32_t result; - - num_bits -= bits_left; - result = (current_word << (32 - bits_left)) >> (32 - bits_left); - - bitstream_fill_current(); - - if(num_bits != 0) - result = (result << num_bits) | (current_word >> (32 - num_bits)); - - bits_left = 32 - num_bits; - - return result; -} diff --git a/libavcodec/libac3/bitstream.h b/libavcodec/libac3/bitstream.h deleted file mode 100644 index 84f3287..0000000 --- a/libavcodec/libac3/bitstream.h +++ /dev/null @@ -1,68 +0,0 @@ -/* - * bitstream.h - * - * Copyright (C) Aaron Holtzman - Dec 1999 - * - * This file is part of ac3dec, a free AC-3 audio decoder - * - * ac3dec is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * ac3dec is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Make; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - */ - -//My new and improved vego-matic endian swapping routine -//(stolen from the kernel) -#ifdef WORDS_BIGENDIAN - -# define swab32(x) (x) - -#else - -# if defined (__i386__) - -# define swab32(x) __i386_swab32(x) - static inline const uint32_t __i386_swab32(uint32_t x) - { - __asm__("bswap %0" : "=r" (x) : "0" (x)); - return x; - } - -# else - -# define swab32(x)\ -((((uint8_t*)&x)[0] << 24) | (((uint8_t*)&x)[1] << 16) | \ - (((uint8_t*)&x)[2] << 8) | (((uint8_t*)&x)[3])) - -# endif -#endif - -extern uint32_t bits_left; -extern uint32_t current_word; - -void bitstream_set_ptr (uint8_t * buf); -uint32_t bitstream_get_bh(uint32_t num_bits); - -static inline uint32_t -bitstream_get(uint32_t num_bits) -{ - uint32_t result; - - if(num_bits < bits_left) { - result = (current_word << (32 - bits_left)) >> (32 - num_bits); - bits_left -= num_bits; - return result; - } - - return bitstream_get_bh(num_bits); -} diff --git a/libavcodec/libac3/downmix.c b/libavcodec/libac3/downmix.c deleted file mode 100644 index 8147182..0000000 --- a/libavcodec/libac3/downmix.c +++ /dev/null @@ -1,530 +0,0 @@ -/* - * - * downmix.c - * - * Copyright (C) Aaron Holtzman - Sept 1999 - * - * Originally based on code by Yuqing Deng. - * - * This file is part of ac3dec, a free Dolby AC-3 stream decoder. - * - * ac3dec is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * ac3dec is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Make; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - */ - -#include "../common.h" -#include -#include "ac3.h" -#include "ac3_internal.h" - - -#define CONVERT(acmod,output) (((output) << 3) + (acmod)) - -int downmix_init (int input, int flags, float * level, float clev, float slev) -{ - static uint8_t table[11][8] = { - {AC3_CHANNEL, AC3_DOLBY, AC3_STEREO, AC3_STEREO, - AC3_STEREO, AC3_STEREO, AC3_STEREO, AC3_STEREO}, - {AC3_MONO, AC3_MONO, AC3_MONO, AC3_MONO, - AC3_MONO, AC3_MONO, AC3_MONO, AC3_MONO}, - {AC3_CHANNEL, AC3_DOLBY, AC3_STEREO, AC3_STEREO, - AC3_STEREO, AC3_STEREO, AC3_STEREO, AC3_STEREO}, - {AC3_CHANNEL, AC3_DOLBY, AC3_STEREO, AC3_3F, - AC3_STEREO, AC3_3F, AC3_STEREO, AC3_3F}, - {AC3_CHANNEL, AC3_DOLBY, AC3_STEREO, AC3_STEREO, - AC3_2F1R, AC3_2F1R, AC3_2F1R, AC3_2F1R}, - {AC3_CHANNEL, AC3_DOLBY, AC3_STEREO, AC3_STEREO, - AC3_2F1R, AC3_3F1R, AC3_2F1R, AC3_3F1R}, - {AC3_CHANNEL, AC3_DOLBY, AC3_STEREO, AC3_3F, - AC3_2F2R, AC3_2F2R, AC3_2F2R, AC3_2F2R}, - {AC3_CHANNEL, AC3_DOLBY, AC3_STEREO, AC3_3F, - AC3_2F2R, AC3_3F2R, AC3_2F2R, AC3_3F2R}, - {AC3_CHANNEL1, AC3_MONO, AC3_MONO, AC3_MONO, - AC3_MONO, AC3_MONO, AC3_MONO, AC3_MONO}, - {AC3_CHANNEL2, AC3_MONO, AC3_MONO, AC3_MONO, - AC3_MONO, AC3_MONO, AC3_MONO, AC3_MONO}, - {AC3_CHANNEL, AC3_DOLBY, AC3_STEREO, AC3_DOLBY, - AC3_DOLBY, AC3_DOLBY, AC3_DOLBY, AC3_DOLBY} - }; - int output; - - output = flags & AC3_CHANNEL_MASK; - if (output > AC3_DOLBY) - return -1; - - output = table[output][input & 7]; - - if ((output == AC3_STEREO) && - ((input == AC3_DOLBY) || ((input == AC3_3F) && (clev == LEVEL_3DB)))) - output = AC3_DOLBY; - - if (flags & AC3_ADJUST_LEVEL) - switch (CONVERT (input & 7, output)) { - - case CONVERT (AC3_3F, AC3_MONO): - *level *= LEVEL_3DB / (1 + clev); - break; - - case CONVERT (AC3_STEREO, AC3_MONO): - case CONVERT (AC3_2F2R, AC3_2F1R): - case CONVERT (AC3_3F2R, AC3_3F1R): - level_3db: - *level *= LEVEL_3DB; - break; - - case CONVERT (AC3_3F2R, AC3_2F1R): - if (clev < LEVEL_PLUS3DB - 1) - goto level_3db; - // break thru - case CONVERT (AC3_3F, AC3_STEREO): - case CONVERT (AC3_3F1R, AC3_2F1R): - case CONVERT (AC3_3F1R, AC3_2F2R): - case CONVERT (AC3_3F2R, AC3_2F2R): - *level /= 1 + clev; - break; - - case CONVERT (AC3_2F1R, AC3_MONO): - *level *= LEVEL_PLUS3DB / (2 + slev); - break; - - case CONVERT (AC3_2F1R, AC3_STEREO): - case CONVERT (AC3_3F1R, AC3_3F): - *level /= 1 + slev * LEVEL_3DB; - break; - - case CONVERT (AC3_3F1R, AC3_MONO): - *level *= LEVEL_3DB / (1 + clev + 0.5 * slev); - break; - - case CONVERT (AC3_3F1R, AC3_STEREO): - *level /= 1 + clev + slev * LEVEL_3DB; - break; - - case CONVERT (AC3_2F2R, AC3_MONO): - *level *= LEVEL_3DB / (1 + slev); - break; - - case CONVERT (AC3_2F2R, AC3_STEREO): - case CONVERT (AC3_3F2R, AC3_3F): - *level /= (1 + slev); - break; - - case CONVERT (AC3_3F2R, AC3_MONO): - *level *= LEVEL_3DB / (1 + clev + slev); - break; - - case CONVERT (AC3_3F2R, AC3_STEREO): - *level /= 1 + clev + slev; - break; - - case CONVERT (AC3_MONO, AC3_DOLBY): - *level *= LEVEL_PLUS3DB; - break; - - case CONVERT (AC3_3F, AC3_DOLBY): - case CONVERT (AC3_2F1R, AC3_DOLBY): - *level *= 1 / (1 + LEVEL_3DB); - break; - - case CONVERT (AC3_3F1R, AC3_DOLBY): - case CONVERT (AC3_2F2R, AC3_DOLBY): - *level *= 1 / (1 + 2 * LEVEL_3DB); - break; - - case CONVERT (AC3_3F2R, AC3_DOLBY): - *level *= 1 / (1 + 3 * LEVEL_3DB); - break; - } - - return output; -} - -static void mix1to1 (float * samples, float level, float bias) -{ - int i; - - for (i = 0; i < 256; i++) - samples[i] = samples[i] * level + bias; -} - -static void move1to1 (float * src, float * dest, float level, float bias) -{ - int i; - - for (i = 0; i < 256; i++) - dest[i] = src[i] * level + bias; -} - -static void mix2to1 (float * samples, float level, float bias) -{ - int i; - - for (i = 0; i < 256; i++) - samples[i] = (samples[i] + samples[i + 256]) * level + bias; -} - -static void move2to1 (float * src, float * dest, float level, float bias) -{ - int i; - - for (i = 0; i < 256; i++) - dest[i] = (src[i] + src[i + 256]) * level + bias; -} - -static void mix3to1 (float * samples, float level, float clev, float bias) -{ - int i; - - for (i = 0; i < 256; i++) - samples[i] = ((samples[i] + samples[i + 512]) * level + - samples[i + 256] * clev + bias); -} - -static void mix21to1 (float * samples, float level, float slev, float bias) -{ - int i; - - for (i = 0; i < 256; i++) - samples[i] = ((samples[i] + samples[i + 256]) * level + - samples[i + 512] * slev + bias); -} - -static void mix31to1 (float * samples, float level, float clev, float slev, - float bias) -{ - int i; - - for (i = 0; i < 256; i++) - samples[i] = ((samples[i] + samples[i + 512]) * level + - samples[i + 256] * clev + samples[i + 768] * slev + - bias); -} - -static void mix22to1 (float * samples, float level, float slev, float bias) -{ - int i; - - for (i = 0; i < 256; i++) - samples[i] = ((samples[i] + samples[i + 256]) * level + - (samples[i + 512] + samples[i + 768]) * slev + bias); -} - -static void mix32to1 (float * samples, float level, float clev, float slev, - float bias) -{ - int i; - - for (i = 0; i < 256; i++) - samples[i] = ((samples[i] + samples[i + 512]) * level + - samples[i + 256] * clev + - (samples[i + 768] + samples[i + 1024]) * slev + bias); -} - -static void mix1to2 (float * src, float * dest, float level, float bias) -{ - int i; - - for (i = 0; i < 256; i++) - dest[i] = src[i] = src[i] * level + bias; -} - -static void mix3to2 (float * samples, float level, float clev, float bias) -{ - int i; - float common; - - for (i = 0; i < 256; i++) { - common = samples[i + 256] * clev + bias; - samples[i] = samples[i] * level + common; - samples[i + 256] = samples[i + 512] * level + common; - } -} - -static void mix21to2 (float * left, float * right, float level, float slev, - float bias) -{ - int i; - float common; - - for (i = 0; i < 256; i++) { - common = right[i + 256] * slev + bias; - left[i] = left[i] * level + common; - right[i] = right[i] * level + common; - } -} - -static void mix11to1 (float * front, float * rear, float level, float slev, - float bias) -{ - int i; - - for (i = 0; i < 256; i++) - front[i] = front[i] * level + rear[i] * slev + bias; -} - -static void mix31to2 (float * samples, float level, float clev, float slev, - float bias) -{ - int i; - float common; - - for (i = 0; i < 256; i++) { - common = samples[i + 256] * clev + samples[i + 768] * slev + bias; - samples[i] = samples[i] * level + common; - samples[i + 256] = samples[i + 512] * level + common; - } -} - -static void mix32to2 (float * samples, float level, float clev, float slev, - float bias) -{ - int i; - float common; - - for (i = 0; i < 256; i++) { - common = samples[i + 256] * clev + bias; - samples[i] = samples[i] * level + common + samples[i + 768] * slev; - samples[i + 256] = (samples[i + 512] * level + common + - samples[i + 1024] * slev); - } -} - -static void mix21toS (float * samples, float level, float level3db, float bias) -{ - int i; - float surround; - - for (i = 0; i < 256; i++) { - surround = samples[i + 512] * level3db; - samples[i] = samples[i] * level - surround + bias; - samples[i + 256] = samples[i + 256] * level + surround + bias; - } -} - -static void mix22toS (float * samples, float level, float level3db, float bias) -{ - int i; - float surround; - - for (i = 0; i < 256; i++) { - surround = (samples[i + 512] + samples[i + 768]) * level3db; - samples[i] = samples[i] * level - surround + bias; - samples[i + 256] = samples[i + 256] * level + surround + bias; - } -} - -static void mix31toS (float * samples, float level, float level3db, float bias) -{ - int i; - float common, surround; - - for (i = 0; i < 256; i++) { - common = samples[i + 256] * level3db + bias; - surround = samples[i + 768] * level3db; - samples[i] = samples[i] * level + common - surround; - samples[i + 256] = samples[i + 512] * level + common + surround; - } -} - -static void mix32toS (float * samples, float level, float level3db, float bias) -{ - int i; - float common, surround; - - for (i = 0; i < 256; i++) { - common = samples[i + 256] * level3db + bias; - surround = (samples[i + 768] + samples[i + 1024]) * level3db; - samples[i] = samples[i] * level + common - surround; - samples[i + 256] = samples[i + 512] * level + common + surround; - } -} - -void downmix (float * samples, int acmod, int output, float level, float bias, - float clev, float slev) -{ - switch (CONVERT (acmod, output & AC3_CHANNEL_MASK)) { - - case CONVERT (AC3_3F2R, AC3_3F2R): - mix1to1 (samples + 1024, level, bias); - case CONVERT (AC3_3F1R, AC3_3F1R): - case CONVERT (AC3_2F2R, AC3_2F2R): - mix1to1 (samples + 768, level, bias); - case CONVERT (AC3_3F, AC3_3F): - case CONVERT (AC3_2F1R, AC3_2F1R): - mix_3to3: - mix1to1 (samples + 512, level, bias); - case CONVERT (AC3_CHANNEL, AC3_CHANNEL): - case CONVERT (AC3_STEREO, AC3_STEREO): - case CONVERT (AC3_STEREO, AC3_DOLBY): - mix_2to2: - mix1to1 (samples + 256, level, bias); - case CONVERT (AC3_CHANNEL, AC3_CHANNEL1): - case CONVERT (AC3_MONO, AC3_MONO): - mix1to1 (samples, level, bias); - break; - - case CONVERT (AC3_CHANNEL, AC3_CHANNEL2): - mix_1to1_b: - mix1to1 (samples + 256, level, bias); - break; - - case CONVERT (AC3_STEREO, AC3_MONO): - mix_2to1: - mix2to1 (samples, level * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_2F1R, AC3_MONO): - if (slev == 0) - goto mix_2to1; - mix21to1 (samples, level * LEVEL_3DB, level * slev * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_2F2R, AC3_MONO): - if (slev == 0) - goto mix_2to1; - mix22to1 (samples, level * LEVEL_3DB, level * slev * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_3F, AC3_MONO): - mix_3to1: - mix3to1 (samples, level * LEVEL_3DB, level * clev * LEVEL_PLUS3DB, - bias); - break; - - case CONVERT (AC3_3F1R, AC3_MONO): - if (slev == 0) - goto mix_3to1; - mix31to1 (samples, level * LEVEL_3DB, level * clev * LEVEL_PLUS3DB, - level * slev * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_3F2R, AC3_MONO): - if (slev == 0) - goto mix_3to1; - mix32to1 (samples, level * LEVEL_3DB, level * clev * LEVEL_PLUS3DB, - level * slev * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_CHANNEL, AC3_MONO): - mix2to1 (samples, level * LEVEL_6DB, bias); - break; - - case CONVERT (AC3_MONO, AC3_DOLBY): - mix1to2 (samples, samples + 256, level * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_3F, AC3_DOLBY): - clev = LEVEL_3DB; - case CONVERT (AC3_3F, AC3_STEREO): - mix_3to2: - mix3to2 (samples, level, level * clev, bias); - break; - - case CONVERT (AC3_2F1R, AC3_DOLBY): - mix21toS (samples, level, level * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_3F1R, AC3_DOLBY): - mix31toS (samples, level, level * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_2F2R, AC3_DOLBY): - mix22toS (samples, level, level * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_3F2R, AC3_DOLBY): - mix32toS (samples, level, level * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_2F1R, AC3_STEREO): - if (slev == 0) - goto mix_2to2; - mix21to2 (samples, samples + 256, level, level * slev * LEVEL_3DB, - bias); - break; - - case CONVERT (AC3_3F1R, AC3_STEREO): - if (slev == 0) - goto mix_3to2; - mix31to2 (samples, level, level * clev, level * slev * LEVEL_3DB, - bias); - break; - - case CONVERT (AC3_2F2R, AC3_STEREO): - if (slev == 0) - goto mix_2to2; - mix11to1 (samples, samples + 512, level, level * slev, bias); - mix11to1 (samples + 256, samples + 768, level, level * slev, bias); - break; - - case CONVERT (AC3_3F2R, AC3_STEREO): - if (slev == 0) - goto mix_3to2; - mix32to2 (samples, level, level * clev, level * slev, bias); - break; - - case CONVERT (AC3_3F1R, AC3_3F): - if (slev == 0) - goto mix_3to3; - mix21to2 (samples, samples + 512, level, level * slev * LEVEL_3DB, - bias); - - case CONVERT (AC3_3F2R, AC3_3F): - if (slev == 0) - goto mix_3to3; - mix11to1 (samples, samples + 768, level, level * slev, bias); - mix11to1 (samples + 512, samples + 1024, level, level * slev, bias); - goto mix_1to1_b; - - case CONVERT (AC3_2F1R, AC3_2F2R): - mix1to2 (samples + 512, samples + 768, level * LEVEL_3DB, bias); - goto mix_2to2; - - case CONVERT (AC3_3F1R, AC3_3F2R): - mix1to2 (samples + 768, samples + 1024, level * LEVEL_3DB, bias); - goto mix_3to3; - - case CONVERT (AC3_2F2R, AC3_2F1R): - mix2to1 (samples + 512, level * LEVEL_3DB, bias); - goto mix_2to2; - - case CONVERT (AC3_3F2R, AC3_3F1R): - mix2to1 (samples + 768, level * LEVEL_3DB, bias); - goto mix_3to3; - - case CONVERT (AC3_3F1R, AC3_2F2R): - mix3to2 (samples, level, level * clev, bias); - mix1to2 (samples + 768, samples + 512, level * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_3F1R, AC3_2F1R): - mix3to2 (samples, level, level * clev, bias); - move1to1 (samples + 768, samples + 512, level, bias); - break; - - case CONVERT (AC3_3F2R, AC3_2F1R): - mix3to2 (samples, level, level * clev, bias); - move2to1 (samples + 768, samples + 512, level * LEVEL_3DB, bias); - break; - - case CONVERT (AC3_3F2R, AC3_2F2R): - mix3to2 (samples, level, level * clev, bias); - move1to1 (samples + 768, samples + 512, level, bias); - move1to1 (samples + 1024, samples + 768, level, bias); - break; - - } -} diff --git a/libavcodec/libac3/imdct.c b/libavcodec/libac3/imdct.c deleted file mode 100644 index b3516a9..0000000 --- a/libavcodec/libac3/imdct.c +++ /dev/null @@ -1,404 +0,0 @@ -/* - * imdct.c - * - * Copyright (C) Aaron Holtzman - May 1999 - * - * This file is part of ac3dec, a free Dolby AC-3 stream decoder. - * - * ac3dec is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * ac3dec is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Make; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - */ - -#include "../common.h" -#include -#include "ac3.h" -#include "ac3_internal.h" - -void (* imdct_256) (float data[], float delay[]); -void (* imdct_512) (float data[], float delay[]); - -typedef struct complex_s -{ - float real; - float imag; -} complex_t; - - -/* 128 point bit-reverse LUT */ -static uint8_t bit_reverse_512[] = { - 0x00, 0x40, 0x20, 0x60, 0x10, 0x50, 0x30, 0x70, - 0x08, 0x48, 0x28, 0x68, 0x18, 0x58, 0x38, 0x78, - 0x04, 0x44, 0x24, 0x64, 0x14, 0x54, 0x34, 0x74, - 0x0c, 0x4c, 0x2c, 0x6c, 0x1c, 0x5c, 0x3c, 0x7c, - 0x02, 0x42, 0x22, 0x62, 0x12, 0x52, 0x32, 0x72, - 0x0a, 0x4a, 0x2a, 0x6a, 0x1a, 0x5a, 0x3a, 0x7a, - 0x06, 0x46, 0x26, 0x66, 0x16, 0x56, 0x36, 0x76, - 0x0e, 0x4e, 0x2e, 0x6e, 0x1e, 0x5e, 0x3e, 0x7e, - 0x01, 0x41, 0x21, 0x61, 0x11, 0x51, 0x31, 0x71, - 0x09, 0x49, 0x29, 0x69, 0x19, 0x59, 0x39, 0x79, - 0x05, 0x45, 0x25, 0x65, 0x15, 0x55, 0x35, 0x75, - 0x0d, 0x4d, 0x2d, 0x6d, 0x1d, 0x5d, 0x3d, 0x7d, - 0x03, 0x43, 0x23, 0x63, 0x13, 0x53, 0x33, 0x73, - 0x0b, 0x4b, 0x2b, 0x6b, 0x1b, 0x5b, 0x3b, 0x7b, - 0x07, 0x47, 0x27, 0x67, 0x17, 0x57, 0x37, 0x77, - 0x0f, 0x4f, 0x2f, 0x6f, 0x1f, 0x5f, 0x3f, 0x7f}; - -static uint8_t bit_reverse_256[] = { - 0x00, 0x20, 0x10, 0x30, 0x08, 0x28, 0x18, 0x38, - 0x04, 0x24, 0x14, 0x34, 0x0c, 0x2c, 0x1c, 0x3c, - 0x02, 0x22, 0x12, 0x32, 0x0a, 0x2a, 0x1a, 0x3a, - 0x06, 0x26, 0x16, 0x36, 0x0e, 0x2e, 0x1e, 0x3e, - 0x01, 0x21, 0x11, 0x31, 0x09, 0x29, 0x19, 0x39, - 0x05, 0x25, 0x15, 0x35, 0x0d, 0x2d, 0x1d, 0x3d, - 0x03, 0x23, 0x13, 0x33, 0x0b, 0x2b, 0x1b, 0x3b, - 0x07, 0x27, 0x17, 0x37, 0x0f, 0x2f, 0x1f, 0x3f}; - -static complex_t buf[128]; - -/* Twiddle factor LUT */ -static complex_t w_1[1]; -static complex_t w_2[2]; -static complex_t w_4[4]; -static complex_t w_8[8]; -static complex_t w_16[16]; -static complex_t w_32[32]; -static complex_t w_64[64]; -static complex_t * w[7] = {w_1, w_2, w_4, w_8, w_16, w_32, w_64}; - -/* Twiddle factors for IMDCT */ -static float xcos1[128]; -static float xsin1[128]; -static float xcos2[64]; -static float xsin2[64]; - -/* Windowing function for Modified DCT - Thank you acroread */ -float imdct_window[] = { - 0.00014, 0.00024, 0.00037, 0.00051, 0.00067, 0.00086, 0.00107, 0.00130, - 0.00157, 0.00187, 0.00220, 0.00256, 0.00297, 0.00341, 0.00390, 0.00443, - 0.00501, 0.00564, 0.00632, 0.00706, 0.00785, 0.00871, 0.00962, 0.01061, - 0.01166, 0.01279, 0.01399, 0.01526, 0.01662, 0.01806, 0.01959, 0.02121, - 0.02292, 0.02472, 0.02662, 0.02863, 0.03073, 0.03294, 0.03527, 0.03770, - 0.04025, 0.04292, 0.04571, 0.04862, 0.05165, 0.05481, 0.05810, 0.06153, - 0.06508, 0.06878, 0.07261, 0.07658, 0.08069, 0.08495, 0.08935, 0.09389, - 0.09859, 0.10343, 0.10842, 0.11356, 0.11885, 0.12429, 0.12988, 0.13563, - 0.14152, 0.14757, 0.15376, 0.16011, 0.16661, 0.17325, 0.18005, 0.18699, - 0.19407, 0.20130, 0.20867, 0.21618, 0.22382, 0.23161, 0.23952, 0.24757, - 0.25574, 0.26404, 0.27246, 0.28100, 0.28965, 0.29841, 0.30729, 0.31626, - 0.32533, 0.33450, 0.34376, 0.35311, 0.36253, 0.37204, 0.38161, 0.39126, - 0.40096, 0.41072, 0.42054, 0.43040, 0.44030, 0.45023, 0.46020, 0.47019, - 0.48020, 0.49022, 0.50025, 0.51028, 0.52031, 0.53033, 0.54033, 0.55031, - 0.56026, 0.57019, 0.58007, 0.58991, 0.59970, 0.60944, 0.61912, 0.62873, - 0.63827, 0.64774, 0.65713, 0.66643, 0.67564, 0.68476, 0.69377, 0.70269, - 0.71150, 0.72019, 0.72877, 0.73723, 0.74557, 0.75378, 0.76186, 0.76981, - 0.77762, 0.78530, 0.79283, 0.80022, 0.80747, 0.81457, 0.82151, 0.82831, - 0.83496, 0.84145, 0.84779, 0.85398, 0.86001, 0.86588, 0.87160, 0.87716, - 0.88257, 0.88782, 0.89291, 0.89785, 0.90264, 0.90728, 0.91176, 0.91610, - 0.92028, 0.92432, 0.92822, 0.93197, 0.93558, 0.93906, 0.94240, 0.94560, - 0.94867, 0.95162, 0.95444, 0.95713, 0.95971, 0.96217, 0.96451, 0.96674, - 0.96887, 0.97089, 0.97281, 0.97463, 0.97635, 0.97799, 0.97953, 0.98099, - 0.98236, 0.98366, 0.98488, 0.98602, 0.98710, 0.98811, 0.98905, 0.98994, - 0.99076, 0.99153, 0.99225, 0.99291, 0.99353, 0.99411, 0.99464, 0.99513, - 0.99558, 0.99600, 0.99639, 0.99674, 0.99706, 0.99736, 0.99763, 0.99788, - 0.99811, 0.99831, 0.99850, 0.99867, 0.99882, 0.99895, 0.99908, 0.99919, - 0.99929, 0.99938, 0.99946, 0.99953, 0.99959, 0.99965, 0.99969, 0.99974, - 0.99978, 0.99981, 0.99984, 0.99986, 0.99988, 0.99990, 0.99992, 0.99993, - 0.99994, 0.99995, 0.99996, 0.99997, 0.99998, 0.99998, 0.99998, 0.99999, - 0.99999, 0.99999, 0.99999, 1.00000, 1.00000, 1.00000, 1.00000, 1.00000, - 1.00000, 1.00000, 1.00000, 1.00000, 1.00000, 1.00000, 1.00000, 1.00000 }; - - -static inline void swap_cmplx(complex_t *a, complex_t *b) -{ - complex_t tmp; - - tmp = *a; - *a = *b; - *b = tmp; -} - - - -static inline complex_t cmplx_mult(complex_t a, complex_t b) -{ - complex_t ret; - - ret.real = a.real * b.real - a.imag * b.imag; - ret.imag = a.real * b.imag + a.imag * b.real; - - return ret; -} - -void -imdct_do_512(float data[],float delay[]) -{ - int i,k; - int p,q; - int m; - int two_m; - int two_m_plus_one; - - float tmp_a_i; - float tmp_a_r; - float tmp_b_i; - float tmp_b_r; - - float *data_ptr; - float *delay_ptr; - float *window_ptr; - - // - // 512 IMDCT with source and dest data in 'data' - // - - // Pre IFFT complex multiply plus IFFT cmplx conjugate - for( i=0; i < 128; i++) { - /* z[i] = (X[256-2*i-1] + j * X[2*i]) * (xcos1[i] + j * xsin1[i]) ; */ - buf[i].real = (data[256-2*i-1] * xcos1[i]) - (data[2*i] * xsin1[i]); - buf[i].imag = -1.0 * ((data[2*i] * xcos1[i]) + (data[256-2*i-1] * xsin1[i])); - } - - //Bit reversed shuffling - for(i=0; i<128; i++) { - k = bit_reverse_512[i]; - if (k < i) - swap_cmplx(&buf[i],&buf[k]); - } - - /* FFT Merge */ - for (m=0; m < 7; m++) { - if(m) - two_m = (1 << m); - else - two_m = 1; - - two_m_plus_one = (1 << (m+1)); - - for(k = 0; k < two_m; k++) { - for(i = 0; i < 128; i += two_m_plus_one) { - p = k + i; - q = p + two_m; - tmp_a_r = buf[p].real; - tmp_a_i = buf[p].imag; - tmp_b_r = buf[q].real * w[m][k].real - buf[q].imag * w[m][k].imag; - tmp_b_i = buf[q].imag * w[m][k].real + buf[q].real * w[m][k].imag; - buf[p].real = tmp_a_r + tmp_b_r; - buf[p].imag = tmp_a_i + tmp_b_i; - buf[q].real = tmp_a_r - tmp_b_r; - buf[q].imag = tmp_a_i - tmp_b_i; - } - } - } - - /* Post IFFT complex multiply plus IFFT complex conjugate*/ - for( i=0; i < 128; i++) { - /* y[n] = z[n] * (xcos1[n] + j * xsin1[n]) ; */ - tmp_a_r = buf[i].real; - tmp_a_i = -1.0 * buf[i].imag; - buf[i].real =(tmp_a_r * xcos1[i]) - (tmp_a_i * xsin1[i]); - buf[i].imag =(tmp_a_r * xsin1[i]) + (tmp_a_i * xcos1[i]); - } - - data_ptr = data; - delay_ptr = delay; - window_ptr = imdct_window; - - /* Window and convert to real valued signal */ - for(i=0; i< 64; i++) { - *data_ptr++ = 2.0f * (-buf[64+i].imag * *window_ptr++ + *delay_ptr++); - *data_ptr++ = 2.0f * ( buf[64-i-1].real * *window_ptr++ + *delay_ptr++); - } - - for(i=0; i< 64; i++) { - *data_ptr++ = 2.0f * (-buf[i].real * *window_ptr++ + *delay_ptr++); - *data_ptr++ = 2.0f * ( buf[128-i-1].imag * *window_ptr++ + *delay_ptr++); - } - - /* The trailing edge of the window goes into the delay line */ - delay_ptr = delay; - - for(i=0; i< 64; i++) { - *delay_ptr++ = -buf[64+i].real * *--window_ptr; - *delay_ptr++ = buf[64-i-1].imag * *--window_ptr; - } - - for(i=0; i<64; i++) { - *delay_ptr++ = buf[i].imag * *--window_ptr; - *delay_ptr++ = -buf[128-i-1].real * *--window_ptr; - } -} - -void -imdct_do_256(float data[],float delay[]) -{ - int i,k; - int p,q; - int m; - int two_m; - int two_m_plus_one; - - float tmp_a_i; - float tmp_a_r; - float tmp_b_i; - float tmp_b_r; - - float *data_ptr; - float *delay_ptr; - float *window_ptr; - - complex_t *buf_1, *buf_2; - - buf_1 = &buf[0]; - buf_2 = &buf[64]; - - /* Pre IFFT complex multiply plus IFFT cmplx conjugate */ - for(k=0; k<64; k++) { - /* X1[k] = X[2*k] */ - /* X2[k] = X[2*k+1] */ - - p = 2 * (128-2*k-1); - q = 2 * (2 * k); - - /* Z1[k] = (X1[128-2*k-1] + j * X1[2*k]) * (xcos2[k] + j * xsin2[k]); */ - buf_1[k].real = data[p] * xcos2[k] - data[q] * xsin2[k]; - buf_1[k].imag = -1.0f * (data[q] * xcos2[k] + data[p] * xsin2[k]); - /* Z2[k] = (X2[128-2*k-1] + j * X2[2*k]) * (xcos2[k] + j * xsin2[k]); */ - buf_2[k].real = data[p + 1] * xcos2[k] - data[q + 1] * xsin2[k]; - buf_2[k].imag = -1.0f * ( data[q + 1] * xcos2[k] + data[p + 1] * xsin2[k]); - } - - //IFFT Bit reversed shuffling - for(i=0; i<64; i++) { - k = bit_reverse_256[i]; - if (k < i) { - swap_cmplx(&buf_1[i],&buf_1[k]); - swap_cmplx(&buf_2[i],&buf_2[k]); - } - } - - /* FFT Merge */ - for (m=0; m < 6; m++) { - two_m = (1 << m); - two_m_plus_one = (1 << (m+1)); - - //FIXME - if(m) - two_m = (1 << m); - else - two_m = 1; - - for(k = 0; k < two_m; k++) { - for(i = 0; i < 64; i += two_m_plus_one) { - p = k + i; - q = p + two_m; - //Do block 1 - tmp_a_r = buf_1[p].real; - tmp_a_i = buf_1[p].imag; - tmp_b_r = buf_1[q].real * w[m][k].real - buf_1[q].imag * w[m][k].imag; - tmp_b_i = buf_1[q].imag * w[m][k].real + buf_1[q].real * w[m][k].imag; - buf_1[p].real = tmp_a_r + tmp_b_r; - buf_1[p].imag = tmp_a_i + tmp_b_i; - buf_1[q].real = tmp_a_r - tmp_b_r; - buf_1[q].imag = tmp_a_i - tmp_b_i; - - //Do block 2 - tmp_a_r = buf_2[p].real; - tmp_a_i = buf_2[p].imag; - tmp_b_r = buf_2[q].real * w[m][k].real - buf_2[q].imag * w[m][k].imag; - tmp_b_i = buf_2[q].imag * w[m][k].real + buf_2[q].real * w[m][k].imag; - buf_2[p].real = tmp_a_r + tmp_b_r; - buf_2[p].imag = tmp_a_i + tmp_b_i; - buf_2[q].real = tmp_a_r - tmp_b_r; - buf_2[q].imag = tmp_a_i - tmp_b_i; - } - } - } - - /* Post IFFT complex multiply */ - for( i=0; i < 64; i++) { - /* y1[n] = z1[n] * (xcos2[n] + j * xs in2[n]) ; */ - tmp_a_r = buf_1[i].real; - tmp_a_i = -buf_1[i].imag; - buf_1[i].real =(tmp_a_r * xcos2[i]) - (tmp_a_i * xsin2[i]); - buf_1[i].imag =(tmp_a_r * xsin2[i]) + (tmp_a_i * xcos2[i]); - /* y2[n] = z2[n] * (xcos2[n] + j * xsin2[n]) ; */ - tmp_a_r = buf_2[i].real; - tmp_a_i = -buf_2[i].imag; - buf_2[i].real =(tmp_a_r * xcos2[i]) - (tmp_a_i * xsin2[i]); - buf_2[i].imag =(tmp_a_r * xsin2[i]) + (tmp_a_i * xcos2[i]); - } - - data_ptr = data; - delay_ptr = delay; - window_ptr = imdct_window; - - /* Window and convert to real valued signal */ - for(i=0; i< 64; i++) { - *data_ptr++ = 2.0f * (-buf_1[i].imag * *window_ptr++ + *delay_ptr++); - *data_ptr++ = 2.0f * ( buf_1[64-i-1].real * *window_ptr++ + *delay_ptr++); - } - - for(i=0; i< 64; i++) { - *data_ptr++ = 2.0f * (-buf_1[i].real * *window_ptr++ + *delay_ptr++); - *data_ptr++ = 2.0f * ( buf_1[64-i-1].imag * *window_ptr++ + *delay_ptr++); - } - - delay_ptr = delay; - - for(i=0; i< 64; i++) { - *delay_ptr++ = -buf_2[i].real * *--window_ptr; - *delay_ptr++ = buf_2[64-i-1].imag * *--window_ptr; - } - - for(i=0; i< 64; i++) { - *delay_ptr++ = buf_2[i].imag * *--window_ptr; - *delay_ptr++ = -buf_2[64-i-1].real * *--window_ptr; - } -} - -void imdct_init (void) -{ -#ifdef LIBAC3_MLIB - void imdct_do_256_mlib(float data[],float delay[]); - void imdct_do_512_mlib(float data[],float delay[]); - - imdct_512 = imdct_do_512_mlib; - imdct_256 = imdct_do_256_mlib; -#else - int i, j, k; - - /* Twiddle factors to turn IFFT into IMDCT */ - for (i = 0; i < 128; i++) { - xcos1[i] = -cos ((M_PI / 2048) * (8 * i + 1)); - xsin1[i] = -sin ((M_PI / 2048) * (8 * i + 1)); - } - - /* More twiddle factors to turn IFFT into IMDCT */ - for (i = 0; i < 64; i++) { - xcos2[i] = -cos ((M_PI / 1024) * (8 * i + 1)); - xsin2[i] = -sin ((M_PI / 1024) * (8 * i + 1)); - } - - for (i = 0; i < 7; i++) { - j = 1 << i; - for (k = 0; k < j; k++) { - w[i][k].real = cos (-M_PI * k / j); - w[i][k].imag = sin (-M_PI * k / j); - } - } - imdct_512 = imdct_do_512; - imdct_256 = imdct_do_256; -#endif -} diff --git a/libavcodec/libac3/parse.c b/libavcodec/libac3/parse.c deleted file mode 100644 index 99cf8d7..0000000 --- a/libavcodec/libac3/parse.c +++ /dev/null @@ -1,682 +0,0 @@ -/* - * parse.c - * - * Copyright (C) Aaron Holtzman - May 1999 - * - * This file is part of ac3dec, a free Dolby AC-3 stream decoder. - * - * ac3dec is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * ac3dec is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Make; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - */ - -#include "../common.h" -#include "ac3.h" -#include "ac3_internal.h" - -#include "bitstream.h" -#include "tables.h" - -extern stream_samples_t samples; // FIXME -static float delay[6][256]; - -void ac3_init (void) -{ - imdct_init (); -} - -static uint8_t halfrate[12] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3}; - -int ac3_syncinfo (uint8_t * buf, int * flags, - int * sample_rate, int * bit_rate) -{ - static int rate[] = { 32, 40, 48, 56, 64, 80, 96, 112, - 128, 160, 192, 224, 256, 320, 384, 448, - 512, 576, 640}; - static uint8_t lfeon[8] = {0x10, 0x10, 0x04, 0x04, 0x04, 0x01, 0x04, 0x01}; - int frmsizecod; - int bitrate; - int half; - int acmod; - - if ((buf[0] != 0x0b) || (buf[1] != 0x77)) // syncword - return 0; - - if (buf[5] >= 0x60) // bsid >= 12 - return 0; - half = halfrate[buf[5] >> 3]; - - // acmod, dsurmod and lfeon - acmod = buf[6] >> 5; - *flags = (((buf[6] & 0xf8) == 0x50) ? AC3_DOLBY : acmod) | - ((buf[6] & lfeon[acmod]) ? AC3_LFE : 0); - - frmsizecod = buf[4] & 63; - if (frmsizecod >= 38) - return 0; - bitrate = rate [frmsizecod >> 1]; - *bit_rate = (bitrate * 1000) >> half; - - switch (buf[4] & 0xc0) { - case 0: // 48 KHz - *sample_rate = 48000 >> half; - return 4 * bitrate; - case 0x40: - *sample_rate = 44100 >> half; - return 2 * (320 * bitrate / 147 + (frmsizecod & 1)); - case 0x80: - *sample_rate = 32000 >> half; - return 6 * bitrate; - default: - return 0; - } -} - -int ac3_frame (ac3_state_t * state, uint8_t * buf, int * flags, float * level, - float bias) -{ - static float clev[4] = {LEVEL_3DB, LEVEL_45DB, LEVEL_6DB, LEVEL_45DB}; - static float slev[4] = {LEVEL_3DB, LEVEL_6DB, 0, LEVEL_6DB}; - int chaninfo; - int acmod; - - state->fscod = buf[4] >> 6; - state->halfrate = halfrate[buf[5] >> 3]; - state->acmod = acmod = buf[6] >> 5; - - bitstream_set_ptr (buf + 6); - bitstream_get (3); // skip acmod we already parsed - - if ((acmod == 2) && (bitstream_get (2) == 2)) // dsurmod - acmod = AC3_DOLBY; - - if ((acmod & 1) && (acmod != 1)) - state->clev = clev[bitstream_get (2)]; // cmixlev - - if (acmod & 4) - state->slev = slev[bitstream_get (2)]; // surmixlev - - state->lfeon = bitstream_get (1); - - state->output = downmix_init (acmod, *flags, level, - state->clev, state->slev); - if (state->output < 0) - return 1; - *flags = state->output; - state->level = *level; - state->bias = bias; - - chaninfo = !acmod; - do { - bitstream_get (5); // dialnorm - if (bitstream_get (1)) // compre - bitstream_get (8); // compr - if (bitstream_get (1)) // langcode - bitstream_get (8); // langcod - if (bitstream_get (1)) // audprodie - bitstream_get (7); // mixlevel + roomtyp - } while (chaninfo--); - - bitstream_get (2); // copyrightb + origbs - - if (bitstream_get (1)) // timecod1e - bitstream_get (14); // timecod1 - if (bitstream_get (1)) // timecod2e - bitstream_get (14); // timecod2 - - if (bitstream_get (1)) { // addbsie - int addbsil; - - addbsil = bitstream_get (6); - do { - bitstream_get (8); // addbsi - } while (addbsil--); - } - - return 0; -} - -static int parse_exponents (int expstr, int ngrps, uint8_t exponent, - uint8_t * dest) -{ - int exps; - - while (ngrps--) { - exps = bitstream_get (7); - - exponent += exp_1[exps]; - if (exponent > 24) - return 1; - - switch (expstr) { - case EXP_D45: - *(dest++) = exponent; - *(dest++) = exponent; - case EXP_D25: - *(dest++) = exponent; - case EXP_D15: - *(dest++) = exponent; - } - - exponent += exp_2[exps]; - if (exponent > 24) - return 1; - - switch (expstr) { - case EXP_D45: - *(dest++) = exponent; - *(dest++) = exponent; - case EXP_D25: - *(dest++) = exponent; - case EXP_D15: - *(dest++) = exponent; - } - - exponent += exp_3[exps]; - if (exponent > 24) - return 1; - - switch (expstr) { - case EXP_D45: - *(dest++) = exponent; - *(dest++) = exponent; - case EXP_D25: - *(dest++) = exponent; - case EXP_D15: - *(dest++) = exponent; - } - } - - return 0; -} - -static int parse_deltba (int8_t * deltba) -{ - int deltnseg, deltlen, delta, j; - - memset (deltba, 0, 50); - - deltnseg = bitstream_get (3); - j = 0; - do { - j += bitstream_get (5); - deltlen = bitstream_get (4); - delta = bitstream_get (3); - delta -= (delta >= 4) ? 3 : 4; - if (!deltlen) - continue; - if (j + deltlen >= 50) - return 1; - while (deltlen--) - deltba[j++] = delta; - } while (deltnseg--); - - return 0; -} - -static inline int zero_snr_offsets (int nfchans, ac3_state_t * state) -{ - int i; - - if ((state->csnroffst) || (state->cplinu && state->cplba.fsnroffst) || - (state->lfeon && state->lfeba.fsnroffst)) - return 0; - for (i = 0; i < nfchans; i++) - if (state->ba[i].fsnroffst) - return 0; - return 1; -} - -static float q_1[2]; -static float q_2[2]; -static float q_4; -static int q_1_pointer; -static int q_2_pointer; -static int q_4_pointer; - -#define GET_COEFF(COEFF,DITHER) \ - switch (bap[i]) { \ - case 0: \ - DITHER (scale_factor[exp[i]]); \ - \ - case -1: \ - if (q_1_pointer >= 0) { \ - COEFF (q_1[q_1_pointer--] * scale_factor[exp[i]]); \ - } else { \ - int code; \ - \ - code = bitstream_get (5); \ - \ - q_1_pointer = 1; \ - q_1[0] = q_1_2[code]; \ - q_1[1] = q_1_1[code]; \ - COEFF (q_1_0[code] * scale_factor[exp[i]]); \ - } \ - \ - case -2: \ - if (q_2_pointer >= 0) { \ - COEFF (q_2[q_2_pointer--] * scale_factor[exp[i]]); \ - } else { \ - int code; \ - \ - code = bitstream_get (7); \ - \ - q_2_pointer = 1; \ - q_2[0] = q_2_2[code]; \ - q_2[1] = q_2_1[code]; \ - COEFF (q_2_0[code] * scale_factor[exp[i]]); \ - } \ - \ - case 3: \ - COEFF (q_3[bitstream_get (3)] * scale_factor[exp[i]]); \ - \ - case -3: \ - if (q_4_pointer == 0) { \ - q_4_pointer = -1; \ - COEFF (q_4 * scale_factor[exp[i]]); \ - } else { \ - int code; \ - \ - code = bitstream_get (7); \ - \ - q_4_pointer = 0; \ - q_4 = q_4_1[code]; \ - COEFF (q_4_0[code] * scale_factor[exp[i]]); \ - } \ - \ - case 4: \ - COEFF (q_5[bitstream_get (4)] * scale_factor[exp[i]]); \ - \ - default: \ - COEFF (((int16_t)(bitstream_get(bap[i]) << (16 - bap[i]))) * \ - scale_factor[exp[i]]); \ - } - -#define CHANNEL_COEFF(val) \ - coeff[i++] = val; \ - continue; - -#define CHANNEL_DITHER(val) \ - if (dither) { \ - coeff[i++] = dither_gen () * val; \ - continue; \ - } else { \ - coeff[i++] = 0; \ - continue; \ - } - -static uint16_t lfsr_state = 1; - -static inline int16_t dither_gen(void) -{ - int16_t state; - - state = dither_lut[lfsr_state >> 8] ^ (lfsr_state << 8); - - lfsr_state = (uint16_t) state; - - return ((state * (int) (LEVEL_3DB * 256)) >> 8); -} - -static void coeff_get (float * coeff, uint8_t * exp, int8_t * bap, - int dither, int end) -{ - int i; - - i = 0; - while (i < end) - GET_COEFF (CHANNEL_COEFF, CHANNEL_DITHER); -} - -#define COUPLING_COEFF(val) \ - cplcoeff = val; \ - break; - -#define COUPLING_DITHER(val) \ - cplcoeff = val; \ - for (ch = 0; ch < nfchans; ch++) \ - if (state->chincpl[ch]) { \ - if (dithflag[ch]) \ - samples[ch][i] = \ - state->cplco[ch][bnd] * dither_gen () * cplcoeff; \ - else \ - samples[ch][i] = 0; \ - } \ - i++; \ - continue; - -int ac3_block (ac3_state_t * state) -{ - static const uint8_t nfchans_tbl[8] = {2, 1, 2, 3, 3, 4, 4, 5}; - static int rematrix_band[4] = {25, 37, 61, 253}; - int i, nfchans, chaninfo; - uint8_t cplexpstr, chexpstr[5], lfeexpstr, do_bit_alloc, done_cpl; - uint8_t blksw[5], dithflag[5]; - - nfchans = nfchans_tbl[state->acmod]; - - for (i = 0; i < nfchans; i++) - blksw[i] = bitstream_get (1); - - for (i = 0; i < nfchans; i++) - dithflag[i] = bitstream_get (1); - - chaninfo = !(state->acmod); - do { - if (bitstream_get (1)) // dynrnge - bitstream_get (8); // dynrng - } while (chaninfo--); - - if (bitstream_get (1)) { // cplstre - state->cplinu = bitstream_get (1); - if (state->cplinu) { - static int bndtab[16] = {31, 35, 37, 39, 41, 42, 43, 44, - 45, 45, 46, 46, 47, 47, 48, 48}; - int cplbegf; - int cplendf; - int ncplsubnd; - - for (i = 0; i < nfchans; i++) - state->chincpl[i] = bitstream_get (1); - switch (state->acmod) { - case 0: case 1: - return 1; - case 2: - state->phsflginu = bitstream_get (1); - } - cplbegf = bitstream_get (4); - cplendf = bitstream_get (4); - - if (cplendf + 3 - cplbegf < 0) - return 1; - state->ncplbnd = ncplsubnd = cplendf + 3 - cplbegf; - state->cplstrtbnd = bndtab[cplbegf]; - state->cplstrtmant = cplbegf * 12 + 37; - state->cplendmant = cplendf * 12 + 73; - - for (i = 0; i < ncplsubnd - 1; i++) { - state->cplbndstrc[i] = bitstream_get (1); - state->ncplbnd -= state->cplbndstrc[i]; - } - state->cplbndstrc[i] = 0; // last value is a sentinel - } - } - - if (state->cplinu) { - int j, cplcoe; - - cplcoe = 0; - for (i = 0; i < nfchans; i++) - if (state->chincpl[i]) - if (bitstream_get (1)) { // cplcoe - int mstrcplco, cplcoexp, cplcomant; - - cplcoe = 1; - mstrcplco = 3 * bitstream_get (2); - for (j = 0; j < state->ncplbnd; j++) { - cplcoexp = bitstream_get (4); - cplcomant = bitstream_get (4); - if (cplcoexp == 15) - cplcomant <<= 14; - else - cplcomant = (cplcomant | 0x10) << 13; - state->cplco[i][j] = - cplcomant * scale_factor[cplcoexp + mstrcplco]; - } - } - if ((state->acmod == 2) && state->phsflginu && cplcoe) - for (j = 0; j < state->ncplbnd; j++) - if (bitstream_get (1)) // phsflg - state->cplco[1][j] = -state->cplco[1][j]; - } - - if ((state->acmod == 2) && (bitstream_get (1))) { // rematstr - int end; - - end = (state->cplinu) ? state->cplstrtmant : 253; - i = 0; - do - state->rematflg[i] = bitstream_get (1); - while (rematrix_band[i++] < end); - } - - cplexpstr = EXP_REUSE; - lfeexpstr = EXP_REUSE; - if (state->cplinu) - cplexpstr = bitstream_get (2); - for (i = 0; i < nfchans; i++) - chexpstr[i] = bitstream_get (2); - if (state->lfeon) - lfeexpstr = bitstream_get (1); - - for (i = 0; i < nfchans; i++) - if (chexpstr[i] != EXP_REUSE) { - if (state->cplinu && state->chincpl[i]) - state->endmant[i] = state->cplstrtmant; - else { - int chbwcod; - - chbwcod = bitstream_get (6); - if (chbwcod > 60) - return 1; - state->endmant[i] = chbwcod * 3 + 73; - } - } - - do_bit_alloc = 0; - - if (cplexpstr != EXP_REUSE) { - int cplabsexp, ncplgrps; - - do_bit_alloc = 1; - ncplgrps = ((state->cplendmant - state->cplstrtmant) / - (3 << (cplexpstr - 1))); - cplabsexp = bitstream_get (4) << 1; - if (parse_exponents (cplexpstr, ncplgrps, cplabsexp, - state->cpl_exp + state->cplstrtmant)) - return 1; - } - for (i = 0; i < nfchans; i++) - if (chexpstr[i] != EXP_REUSE) { - int grp_size, nchgrps; - - do_bit_alloc = 1; - grp_size = 3 << (chexpstr[i] - 1); - nchgrps = (state->endmant[i] + grp_size - 4) / grp_size; - state->fbw_exp[i][0] = bitstream_get (4); - if (parse_exponents (chexpstr[i], nchgrps, state->fbw_exp[i][0], - state->fbw_exp[i] + 1)) - return 1; - bitstream_get (2); // gainrng - } - if (lfeexpstr != EXP_REUSE) { - do_bit_alloc = 1; - state->lfe_exp[0] = bitstream_get (4); - if (parse_exponents (lfeexpstr, 2, state->lfe_exp[0], - state->lfe_exp + 1)) - return 1; - } - - if (bitstream_get (1)) { // baie - do_bit_alloc = 1; - state->sdcycod = bitstream_get (2); - state->fdcycod = bitstream_get (2); - state->sgaincod = bitstream_get (2); - state->dbpbcod = bitstream_get (2); - state->floorcod = bitstream_get (3); - } - if (bitstream_get (1)) { //snroffste - do_bit_alloc = 1; - state->csnroffst = bitstream_get (6); - if (state->cplinu) { - state->cplba.fsnroffst = bitstream_get (4); - state->cplba.fgaincod = bitstream_get (3); - } - for (i = 0; i < nfchans; i++) { - state->ba[i].fsnroffst = bitstream_get (4); - state->ba[i].fgaincod = bitstream_get (3); - } - if (state->lfeon) { - state->lfeba.fsnroffst = bitstream_get (4); - state->lfeba.fgaincod = bitstream_get (3); - } - } - if ((state->cplinu) && (bitstream_get (1))) { // cplleake - do_bit_alloc = 1; - state->cplfleak = 2304 - (bitstream_get (3) << 8); - state->cplsleak = 2304 - (bitstream_get (3) << 8); - } - - if (bitstream_get (1)) { // deltbaie - do_bit_alloc = 1; - if (state->cplinu) - state->cplba.deltbae = bitstream_get (2); - for (i = 0; i < nfchans; i++) - state->ba[i].deltbae = bitstream_get (2); - if (state->cplinu && (state->cplba.deltbae == DELTA_BIT_NEW) && - parse_deltba (state->cplba.deltba)) - return 1; - for (i = 0; i < nfchans; i++) - if ((state->ba[i].deltbae == DELTA_BIT_NEW) && - parse_deltba (state->ba[i].deltba)) - return 1; - } - - if (do_bit_alloc) { - if (zero_snr_offsets (nfchans, state)) { - memset (state->cpl_bap, 0, sizeof (state->cpl_bap)); - memset (state->fbw_bap, 0, sizeof (state->fbw_bap)); - memset (state->lfe_bap, 0, sizeof (state->lfe_bap)); - } else { - if (state->cplinu) - bit_allocate (state, &state->cplba, state->cplstrtbnd, - state->cplstrtmant, state->cplendmant, - state->cplfleak, state->cplsleak, - state->cpl_exp, state->cpl_bap); - for (i = 0; i < nfchans; i++) - bit_allocate (state, state->ba + i, 0, 0, state->endmant[i], - 0, 0, state->fbw_exp[i], state->fbw_bap[i]); - if (state->lfeon) { - state->lfeba.deltbae = DELTA_BIT_NONE; - bit_allocate (state, &state->lfeba, 0, 0, 7, 0, 0, - state->lfe_exp, state->lfe_bap); - } - } - } - - if (bitstream_get (1)) { // skiple - i = bitstream_get (9); // skipl - while (i--) - bitstream_get (8); - } - - q_1_pointer = q_2_pointer = q_4_pointer = -1; - done_cpl = 0; - - for (i = 0; i < nfchans; i++) { - int j; - - coeff_get (samples[i], state->fbw_exp[i], state->fbw_bap[i], - dithflag[i], state->endmant[i]); - - if (state->cplinu && state->chincpl[i]) { - if (!done_cpl) { - int i, i_end, bnd, sub_bnd, ch; - float cplcoeff; - - done_cpl = 1; - -#define bap state->cpl_bap -#define exp state->cpl_exp - - sub_bnd = bnd = 0; - i = state->cplstrtmant; - while (i < state->cplendmant) { - i_end = i + 12; - while (state->cplbndstrc[sub_bnd++]) - i_end += 12; - - while (i < i_end) { - GET_COEFF (COUPLING_COEFF, COUPLING_DITHER); - for (ch = 0; ch < nfchans; ch++) - if (state->chincpl[ch]) - samples[ch][i] = - state->cplco[ch][bnd] * cplcoeff; - i++; - } - bnd++; - } - -#undef bap -#undef exp - } - j = state->cplendmant; - } else - j = state->endmant[i]; - for (; j < 256; j++) - samples[i][j] = 0; - } - - if (state->acmod == 2) { - int j, end, band; - - end = ((state->endmant[0] < state->endmant[1]) ? - state->endmant[0] : state->endmant[1]); - - i = 0; - j = 13; - do { - if (!state->rematflg[i]) { - j = rematrix_band[i++]; - continue; - } - band = rematrix_band[i++]; - if (band > end) - band = end; - do { - float tmp0, tmp1; - - tmp0 = samples[0][j]; - tmp1 = samples[1][j]; - samples[0][j] = tmp0 + tmp1; - samples[1][j] = tmp0 - tmp1; - } while (++j < band); - } while (j < end); - } - - if (state->lfeon) { - coeff_get (samples[5], state->lfe_exp, state->lfe_bap, 0, 7); -#if 0 - for (i = 7; i < 256; i++) - samples[5][i] = 0; -#endif - } - - for (i = 0; i < nfchans; i++) - if (blksw[i]) - imdct_256 (samples[i], delay[i]); - else - imdct_512 (samples[i], delay[i]); - -#if 0 - if (state->lfeon) - imdct_512 (samples[5], delay[5]); -#endif - - downmix (*samples, state->acmod, state->output, state->level, state->bias, - state->clev, state->slev); - - return 0; -} diff --git a/libavcodec/libac3/tables.h b/libavcodec/libac3/tables.h deleted file mode 100644 index 5825f93..0000000 --- a/libavcodec/libac3/tables.h +++ /dev/null @@ -1,250 +0,0 @@ -/* - * parse.c - * - * Copyright (C) Aaron Holtzman - May 1999 - * - * This file is part of ac3dec, a free Dolby AC-3 stream decoder. - * - * ac3dec is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2, or (at your option) - * any later version. - * - * ac3dec is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with GNU Make; see the file COPYING. If not, write to - * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. - * - * - */ - -static int8_t exp_1[128] = { - -2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2,-2, - -1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1,-1, - 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, - 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, - 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, - 25,25,25 -}; -static int8_t exp_2[128] = { - -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, - -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, - -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, - -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, - -2,-2,-2,-2,-2,-1,-1,-1,-1,-1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 1, 2, 2, 2, 2, 2, - 25,25,25 -}; -static int8_t exp_3[128] = { - -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2, - -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2, - -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2, - -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2, - -2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2,-2,-1, 0, 1, 2, - 25,25,25 -}; - -#define Q0 ((-2 << 15) / 3.0) -#define Q1 (0) -#define Q2 ((2 << 15) / 3.0) - -static const float q_1_0[ 32 ] = { - Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0, - Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1, - Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2, - 0,0,0,0,0 -}; - -static const float q_1_1[ 32 ] = { - Q0,Q0,Q0,Q1,Q1,Q1,Q2,Q2,Q2, - Q0,Q0,Q0,Q1,Q1,Q1,Q2,Q2,Q2, - Q0,Q0,Q0,Q1,Q1,Q1,Q2,Q2,Q2, - 0,0,0,0,0 -}; - -static const float q_1_2[ 32 ] = { - Q0,Q1,Q2,Q0,Q1,Q2,Q0,Q1,Q2, - Q0,Q1,Q2,Q0,Q1,Q2,Q0,Q1,Q2, - Q0,Q1,Q2,Q0,Q1,Q2,Q0,Q1,Q2, - 0,0,0,0,0 -}; - -#undef Q0 -#undef Q1 -#undef Q2 - -#define Q0 ((-4 << 15) / 5.0) -#define Q1 ((-2 << 15) / 5.0) -#define Q2 (0) -#define Q3 ((2 << 15) / 5.0) -#define Q4 ((4 << 15) / 5.0) - -static const float q_2_0[ 128 ] = { - Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0,Q0, - Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1,Q1, - Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2,Q2, - Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3,Q3, - Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4,Q4, - 0,0,0 -}; - -static const float q_2_1[ 128 ] = { - Q0,Q0,Q0,Q0,Q0,Q1,Q1,Q1,Q1,Q1,Q2,Q2,Q2,Q2,Q2,Q3,Q3,Q3,Q3,Q3,Q4,Q4,Q4,Q4,Q4, - Q0,Q0,Q0,Q0,Q0,Q1,Q1,Q1,Q1,Q1,Q2,Q2,Q2,Q2,Q2,Q3,Q3,Q3,Q3,Q3,Q4,Q4,Q4,Q4,Q4, - Q0,Q0,Q0,Q0,Q0,Q1,Q1,Q1,Q1,Q1,Q2,Q2,Q2,Q2,Q2,Q3,Q3,Q3,Q3,Q3,Q4,Q4,Q4,Q4,Q4, - Q0,Q0,Q0,Q0,Q0,Q1,Q1,Q1,Q1,Q1,Q2,Q2,Q2,Q2,Q2,Q3,Q3,Q3,Q3,Q3,Q4,Q4,Q4,Q4,Q4, - Q0,Q0,Q0,Q0,Q0,Q1,Q1,Q1,Q1,Q1,Q2,Q2,Q2,Q2,Q2,Q3,Q3,Q3,Q3,Q3,Q4,Q4,Q4,Q4,Q4, - 0,0,0 -}; - -static const float q_2_2[ 128 ] = { - Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4, - Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4, - Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4, - Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4, - Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4,Q0,Q1,Q2,Q3,Q4, - 0,0,0 -}; - -#undef Q0 -#undef Q1 -#undef Q2 -#undef Q3 -#undef Q4 - -static const float q_3[8] = { - (-6 << 15)/7.0, (-4 << 15)/7.0, (-2 << 15)/7.0, 0, - ( 2 << 15)/7.0, ( 4 << 15)/7.0, ( 6 << 15)/7.0, 0 -}; - -#define Q0 ((-10 << 15) / 11.0) -#define Q1 ((-8 << 15) / 11.0) -#define Q2 ((-6 << 15) / 11.0) -#define Q3 ((-4 << 15) / 11.0) -#define Q4 ((-2 << 15) / 11.0) -#define Q5 (0) -#define Q6 ((2 << 15) / 11.0) -#define Q7 ((4 << 15) / 11.0) -#define Q8 ((6 << 15) / 11.0) -#define Q9 ((8 << 15) / 11.0) -#define QA ((10 << 15) / 11.0) - -static const float q_4_0[ 128 ] = { - Q0, Q0, Q0, Q0, Q0, Q0, Q0, Q0, Q0, Q0, Q0, - Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, Q1, - Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, Q2, - Q3, Q3, Q3, Q3, Q3, Q3, Q3, Q3, Q3, Q3, Q3, - Q4, Q4, Q4, Q4, Q4, Q4, Q4, Q4, Q4, Q4, Q4, - Q5, Q5, Q5, Q5, Q5, Q5, Q5, Q5, Q5, Q5, Q5, - Q6, Q6, Q6, Q6, Q6, Q6, Q6, Q6, Q6, Q6, Q6, - Q7, Q7, Q7, Q7, Q7, Q7, Q7, Q7, Q7, Q7, Q7, - Q8, Q8, Q8, Q8, Q8, Q8, Q8, Q8, Q8, Q8, Q8, - Q9, Q9, Q9, Q9, Q9, Q9, Q9, Q9, Q9, Q9, Q9, - QA, QA, QA, QA, QA, QA, QA, QA, QA, QA, QA, - 0, 0, 0, 0, 0, 0, 0 -}; - -static const float q_4_1[ 128 ] = { - Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, - Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, - Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, - Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, - Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, - Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, - Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, - Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, - Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, - Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, - Q0, Q1, Q2, Q3, Q4, Q5, Q6, Q7, Q8, Q9, QA, - 0, 0, 0, 0, 0, 0, 0 -}; - -#undef Q0 -#undef Q1 -#undef Q2 -#undef Q3 -#undef Q4 -#undef Q5 -#undef Q6 -#undef Q7 -#undef Q8 -#undef Q9 -#undef QA - -static const float q_5[16] = { - (-14 << 15)/15.0,(-12 << 15)/15.0,(-10 << 15)/15.0, - ( -8 << 15)/15.0,( -6 << 15)/15.0,( -4 << 15)/15.0, - ( -2 << 15)/15.0, 0 ,( 2 << 15)/15.0, - ( 4 << 15)/15.0,( 6 << 15)/15.0,( 8 << 15)/15.0, - ( 10 << 15)/15.0,( 12 << 15)/15.0,( 14 << 15)/15.0, - 0 -}; - -static const uint32_t u32_scale_factors[25] = -{ - 0x38000000, //2 ^ -(0 + 15) - 0x37800000, //2 ^ -(1 + 15) - 0x37000000, //2 ^ -(2 + 15) - 0x36800000, //2 ^ -(3 + 15) - 0x36000000, //2 ^ -(4 + 15) - 0x35800000, //2 ^ -(5 + 15) - 0x35000000, //2 ^ -(6 + 15) - 0x34800000, //2 ^ -(7 + 15) - 0x34000000, //2 ^ -(8 + 15) - 0x33800000, //2 ^ -(9 + 15) - 0x33000000, //2 ^ -(10 + 15) - 0x32800000, //2 ^ -(11 + 15) - 0x32000000, //2 ^ -(12 + 15) - 0x31800000, //2 ^ -(13 + 15) - 0x31000000, //2 ^ -(14 + 15) - 0x30800000, //2 ^ -(15 + 15) - 0x30000000, //2 ^ -(16 + 15) - 0x2f800000, //2 ^ -(17 + 15) - 0x2f000000, //2 ^ -(18 + 15) - 0x2e800000, //2 ^ -(19 + 15) - 0x2e000000, //2 ^ -(20 + 15) - 0x2d800000, //2 ^ -(21 + 15) - 0x2d000000, //2 ^ -(22 + 15) - 0x2c800000, //2 ^ -(23 + 15) - 0x2c000000 //2 ^ -(24 + 15) -}; - -static float * scale_factor = (float *) u32_scale_factors; - -static const uint16_t dither_lut[256] = { - 0x0000, 0xa011, 0xe033, 0x4022, 0x6077, 0xc066, 0x8044, 0x2055, - 0xc0ee, 0x60ff, 0x20dd, 0x80cc, 0xa099, 0x0088, 0x40aa, 0xe0bb, - 0x21cd, 0x81dc, 0xc1fe, 0x61ef, 0x41ba, 0xe1ab, 0xa189, 0x0198, - 0xe123, 0x4132, 0x0110, 0xa101, 0x8154, 0x2145, 0x6167, 0xc176, - 0x439a, 0xe38b, 0xa3a9, 0x03b8, 0x23ed, 0x83fc, 0xc3de, 0x63cf, - 0x8374, 0x2365, 0x6347, 0xc356, 0xe303, 0x4312, 0x0330, 0xa321, - 0x6257, 0xc246, 0x8264, 0x2275, 0x0220, 0xa231, 0xe213, 0x4202, - 0xa2b9, 0x02a8, 0x428a, 0xe29b, 0xc2ce, 0x62df, 0x22fd, 0x82ec, - 0x8734, 0x2725, 0x6707, 0xc716, 0xe743, 0x4752, 0x0770, 0xa761, - 0x47da, 0xe7cb, 0xa7e9, 0x07f8, 0x27ad, 0x87bc, 0xc79e, 0x678f, - 0xa6f9, 0x06e8, 0x46ca, 0xe6db, 0xc68e, 0x669f, 0x26bd, 0x86ac, - 0x6617, 0xc606, 0x8624, 0x2635, 0x0660, 0xa671, 0xe653, 0x4642, - 0xc4ae, 0x64bf, 0x249d, 0x848c, 0xa4d9, 0x04c8, 0x44ea, 0xe4fb, - 0x0440, 0xa451, 0xe473, 0x4462, 0x6437, 0xc426, 0x8404, 0x2415, - 0xe563, 0x4572, 0x0550, 0xa541, 0x8514, 0x2505, 0x6527, 0xc536, - 0x258d, 0x859c, 0xc5be, 0x65af, 0x45fa, 0xe5eb, 0xa5c9, 0x05d8, - 0xae79, 0x0e68, 0x4e4a, 0xee5b, 0xce0e, 0x6e1f, 0x2e3d, 0x8e2c, - 0x6e97, 0xce86, 0x8ea4, 0x2eb5, 0x0ee0, 0xaef1, 0xeed3, 0x4ec2, - 0x8fb4, 0x2fa5, 0x6f87, 0xcf96, 0xefc3, 0x4fd2, 0x0ff0, 0xafe1, - 0x4f5a, 0xef4b, 0xaf69, 0x0f78, 0x2f2d, 0x8f3c, 0xcf1e, 0x6f0f, - 0xede3, 0x4df2, 0x0dd0, 0xadc1, 0x8d94, 0x2d85, 0x6da7, 0xcdb6, - 0x2d0d, 0x8d1c, 0xcd3e, 0x6d2f, 0x4d7a, 0xed6b, 0xad49, 0x0d58, - 0xcc2e, 0x6c3f, 0x2c1d, 0x8c0c, 0xac59, 0x0c48, 0x4c6a, 0xec7b, - 0x0cc0, 0xacd1, 0xecf3, 0x4ce2, 0x6cb7, 0xcca6, 0x8c84, 0x2c95, - 0x294d, 0x895c, 0xc97e, 0x696f, 0x493a, 0xe92b, 0xa909, 0x0918, - 0xe9a3, 0x49b2, 0x0990, 0xa981, 0x89d4, 0x29c5, 0x69e7, 0xc9f6, - 0x0880, 0xa891, 0xe8b3, 0x48a2, 0x68f7, 0xc8e6, 0x88c4, 0x28d5, - 0xc86e, 0x687f, 0x285d, 0x884c, 0xa819, 0x0808, 0x482a, 0xe83b, - 0x6ad7, 0xcac6, 0x8ae4, 0x2af5, 0x0aa0, 0xaab1, 0xea93, 0x4a82, - 0xaa39, 0x0a28, 0x4a0a, 0xea1b, 0xca4e, 0x6a5f, 0x2a7d, 0x8a6c, - 0x4b1a, 0xeb0b, 0xab29, 0x0b38, 0x2b6d, 0x8b7c, 0xcb5e, 0x6b4f, - 0x8bf4, 0x2be5, 0x6bc7, 0xcbd6, 0xeb83, 0x4b92, 0x0bb0, 0xaba1 -}; -- 2.7.4