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-rw-r--r--src/liba52/Makefile.am39
-rw-r--r--src/liba52/a52.h62
-rw-r--r--src/liba52/a52_internal.h121
-rw-r--r--src/liba52/bit_allocate.c265
-rw-r--r--src/liba52/bitstream.c95
-rw-r--r--src/liba52/bitstream.h81
-rw-r--r--src/liba52/crc.c73
-rw-r--r--src/liba52/diff_against_release.patch76
-rw-r--r--src/liba52/downmix.c655
-rw-r--r--src/liba52/imdct.c431
-rw-r--r--src/liba52/parse.c894
-rw-r--r--src/liba52/tables.h246
-rw-r--r--src/liba52/xine_a52_decoder.c875
13 files changed, 0 insertions, 3913 deletions
diff --git a/src/liba52/Makefile.am b/src/liba52/Makefile.am
deleted file mode 100644
index b13170076..000000000
--- a/src/liba52/Makefile.am
+++ /dev/null
@@ -1,39 +0,0 @@
-include $(top_builddir)/misc/Makefile.plugins
-include $(top_srcdir)/misc/Makefile.common
-
-if A52
-a52_module = xineplug_decode_a52.la
-endif
-
-xineplug_LTLIBRARIES = $(a52_module)
-
-if EXTERNAL_A52DEC
-internal_sources =
-else
-internal_sources = \
- bitstream.c \
- bit_allocate.c \
- downmix.c \
- imdct.c \
- parse.c
-endif
-
-xineplug_decode_a52_la_SOURCES = \
- xine_a52_decoder.c \
- $(internal_sources)
-
-if EXTERNAL_A52DEC
-xineplug_decode_a52_la_LIBADD = $(XINE_LIB) $(LTLIBINTL) -la52 -lm
-else
-xineplug_decode_a52_la_LIBADD = $(XINE_LIB) $(LTLIBINTL) -lm
-endif
-
-xineplug_decode_a52_la_CFLAGS = $(VISIBILITY_FLAG)
-xineplug_decode_a52_la_LDFLAGS = $(xineplug_ldflags)
-
-noinst_HEADERS = \
- a52.h \
- a52_internal.h \
- bitstream.h \
- tables.h \
- crc.c
diff --git a/src/liba52/a52.h b/src/liba52/a52.h
deleted file mode 100644
index 9db52ccf8..000000000
--- a/src/liba52/a52.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/*
- * a52.h
- * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * a52dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * a52dec is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifndef A52_H
-#define A52_H
-
-#ifndef LIBA52_DOUBLE
-typedef float sample_t;
-#else
-typedef double sample_t;
-#endif
-
-typedef struct a52_state_s a52_state_t;
-
-#define A52_CHANNEL 0
-#define A52_MONO 1
-#define A52_STEREO 2
-#define A52_3F 3
-#define A52_2F1R 4
-#define A52_3F1R 5
-#define A52_2F2R 6
-#define A52_3F2R 7
-#define A52_CHANNEL1 8
-#define A52_CHANNEL2 9
-#define A52_DOLBY 10
-#define A52_CHANNEL_MASK 15
-
-#define A52_LFE 16
-#define A52_ADJUST_LEVEL 32
-
-a52_state_t * a52_init (uint32_t mm_accel);
-sample_t * a52_samples (a52_state_t * state);
-int a52_syncinfo (uint8_t * buf, int * flags,
- int * sample_rate, int * bit_rate);
-int a52_frame (a52_state_t * state, uint8_t * buf, int * flags,
- sample_t * level, sample_t bias);
-void a52_dynrng (a52_state_t * state,
- sample_t (* call) (sample_t, void *), void * data);
-int a52_block (a52_state_t * state);
-void a52_free (a52_state_t * state);
-
-#endif /* A52_H */
diff --git a/src/liba52/a52_internal.h b/src/liba52/a52_internal.h
deleted file mode 100644
index 541d94803..000000000
--- a/src/liba52/a52_internal.h
+++ /dev/null
@@ -1,121 +0,0 @@
-/*
- * a52_internal.h
- * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * a52dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * a52dec is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-typedef struct {
- uint8_t bai; /* fine SNR offset, fast gain */
- uint8_t deltbae; /* delta bit allocation exists */
- int8_t deltba[50]; /* per-band delta bit allocation */
-} ba_t;
-
-typedef struct {
- uint8_t exp[256]; /* decoded channel exponents */
- int8_t bap[256]; /* derived channel bit allocation */
-} expbap_t;
-
-struct a52_state_s {
- uint8_t fscod; /* sample rate */
- uint8_t halfrate; /* halfrate factor */
- uint8_t acmod; /* coded channels */
- uint8_t lfeon; /* coded lfe channel */
- sample_t clev; /* centre channel mix level */
- sample_t slev; /* surround channels mix level */
-
- int output; /* type of output */
- sample_t level; /* output level */
- sample_t bias; /* output bias */
-
- int dynrnge; /* apply dynamic range */
- sample_t dynrng; /* dynamic range */
- void * dynrngdata; /* dynamic range callback funtion and data */
- sample_t (* dynrngcall) (sample_t range, void * dynrngdata);
-
- uint8_t chincpl; /* channel coupled */
- uint8_t phsflginu; /* phase flags in use (stereo only) */
- uint8_t cplstrtmant; /* coupling channel start mantissa */
- uint8_t cplendmant; /* coupling channel end mantissa */
- uint32_t cplbndstrc; /* coupling band structure */
- sample_t cplco[5][18]; /* coupling coordinates */
-
- /* derived information */
- uint8_t cplstrtbnd; /* coupling start band (for bit allocation) */
- uint8_t ncplbnd; /* number of coupling bands */
-
- uint8_t rematflg; /* stereo rematrixing */
-
- uint8_t endmant[5]; /* channel end mantissa */
-
- uint16_t bai; /* bit allocation information */
-
- uint32_t * buffer_start;
- uint16_t lfsr_state; /* dither state */
- uint32_t bits_left;
- uint32_t current_word;
-
- uint8_t csnroffst; /* coarse SNR offset */
- ba_t cplba; /* coupling bit allocation parameters */
- ba_t ba[5]; /* channel bit allocation parameters */
- ba_t lfeba; /* lfe bit allocation parameters */
-
- uint8_t cplfleak; /* coupling fast leak init */
- uint8_t cplsleak; /* coupling slow leak init */
-
- expbap_t cpl_expbap;
- expbap_t fbw_expbap[5];
- expbap_t lfe_expbap;
-
- sample_t * samples;
- void * samples_base;
- int downmixed;
-};
-
-#define LEVEL_PLUS6DB 2.0
-#define LEVEL_PLUS3DB 1.4142135623730951
-#define LEVEL_3DB 0.7071067811865476
-#define LEVEL_45DB 0.5946035575013605
-#define LEVEL_6DB 0.5
-
-#define EXP_REUSE (0)
-#define EXP_D15 (1)
-#define EXP_D25 (2)
-#define EXP_D45 (3)
-
-#define DELTA_BIT_REUSE (0)
-#define DELTA_BIT_NEW (1)
-#define DELTA_BIT_NONE (2)
-#define DELTA_BIT_RESERVED (3)
-
-void a52_bit_allocate (a52_state_t * state, ba_t * ba, int bndstart,
- int start, int end, int fastleak, int slowleak,
- expbap_t * expbap);
-
-int a52_downmix_init (int input, int flags, sample_t * level,
- sample_t clev, sample_t slev);
-int a52_downmix_coeff (sample_t * coeff, int acmod, int output, sample_t level,
- sample_t clev, sample_t slev);
-void a52_downmix (sample_t * samples, int acmod, int output, sample_t bias,
- sample_t clev, sample_t slev);
-void a52_upmix (sample_t * samples, int acmod, int output);
-
-void a52_imdct_init (uint32_t mm_accel);
-void a52_imdct_256 (sample_t * data, sample_t * delay, sample_t bias);
-void a52_imdct_512 (sample_t * data, sample_t * delay, sample_t bias);
diff --git a/src/liba52/bit_allocate.c b/src/liba52/bit_allocate.c
deleted file mode 100644
index 9da1661dc..000000000
--- a/src/liba52/bit_allocate.c
+++ /dev/null
@@ -1,265 +0,0 @@
-/*
- * bit_allocate.c
- * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * a52dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * a52dec is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "config.h"
-
-#include <inttypes.h>
-
-#include "a52.h"
-#include "a52_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 elems */
-
- 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 elems */
-};
-
-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 a52_bit_allocate (a52_state_t * state, ba_t * ba, int bndstart,
- int start, int end, int fastleak, int slowleak,
- expbap_t * expbap)
-{
- 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;
- uint8_t * exp;
- int8_t * bap;
- 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->bai >> 7) & 3)) >> halfrate; /* fdcycod */
- fgain = 128 + 128 * (ba->bai & 7); /* fgaincod */
- sdecay = (15 + 2 * (state->bai >> 9)) >> halfrate; /* sdcycod */
- sgain = slowgain[(state->bai >> 5) & 3]; /* sgaincod */
- dbknee = dbpbtab[(state->bai >> 3) & 3]; /* 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->bai & 7]; /* floorcod */
- snroffset = 960 - 64 * state->csnroffst - 4 * (ba->bai >> 3) + floor;
- floor >>= 5;
-
- exp = expbap->exp;
- bap = expbap->bap;
-
- 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]];
- 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]];
- 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]];
- 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]];
- 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/src/liba52/bitstream.c b/src/liba52/bitstream.c
deleted file mode 100644
index b645cb79f..000000000
--- a/src/liba52/bitstream.c
+++ /dev/null
@@ -1,95 +0,0 @@
-/*
- * bitstream.c
- * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * a52dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * a52dec is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "config.h"
-
-#include <inttypes.h>
-
-#include "a52.h"
-#include "a52_internal.h"
-#include "bitstream.h"
-
-#define BUFFER_SIZE 4096
-
-void a52_bitstream_set_ptr (a52_state_t * state, uint8_t * buf)
-{
- int align;
-
- align = (long)buf & 3;
- state->buffer_start = (uint32_t *) (buf - align);
- state->bits_left = 0;
- bitstream_get (state, align * 8);
-}
-
-static inline void bitstream_fill_current (a52_state_t * state)
-{
- uint32_t tmp;
-
- tmp = *(state->buffer_start++);
- state->current_word = swab32 (tmp);
-}
-
-/*
- * 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 a52_bitstream_get_bh (a52_state_t * state, uint32_t num_bits)
-{
- uint32_t result;
-
- num_bits -= state->bits_left;
- result = ((state->current_word << (32 - state->bits_left)) >>
- (32 - state->bits_left));
-
- bitstream_fill_current (state);
-
- if (num_bits != 0)
- result = (result << num_bits) | (state->current_word >> (32 - num_bits));
-
- state->bits_left = 32 - num_bits;
-
- return result;
-}
-
-int32_t a52_bitstream_get_bh_2 (a52_state_t * state, uint32_t num_bits)
-{
- int32_t result;
-
- num_bits -= state->bits_left;
- result = ((((int32_t)state->current_word) << (32 - state->bits_left)) >>
- (32 - state->bits_left));
-
- bitstream_fill_current(state);
-
- if (num_bits != 0)
- result = (result << num_bits) | (state->current_word >> (32 - num_bits));
-
- state->bits_left = 32 - num_bits;
-
- return result;
-}
diff --git a/src/liba52/bitstream.h b/src/liba52/bitstream.h
deleted file mode 100644
index 59f91cc0e..000000000
--- a/src/liba52/bitstream.h
+++ /dev/null
@@ -1,81 +0,0 @@
-/*
- * bitstream.h
- * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * a52dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * a52dec is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#ifdef WIN32
-#include <unistd.h>
-#endif
-
-/* (stolen from the kernel) */
-#ifdef WORDS_BIGENDIAN
-
-# define swab32(x) (x)
-
-#else
-
-# if 0 && 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
-
-void a52_bitstream_set_ptr (a52_state_t * state, uint8_t * buf);
-uint32_t a52_bitstream_get_bh (a52_state_t * state, uint32_t num_bits);
-int32_t a52_bitstream_get_bh_2 (a52_state_t * state, uint32_t num_bits);
-
-static inline uint32_t bitstream_get (a52_state_t * state, uint32_t num_bits)
-{
- uint32_t result;
-
- if (num_bits < state->bits_left) {
- result = (state->current_word << (32 - state->bits_left)) >> (32 - num_bits);
- state->bits_left -= num_bits;
- return result;
- }
-
- return a52_bitstream_get_bh (state, num_bits);
-}
-
-static inline int32_t bitstream_get_2 (a52_state_t * state, uint32_t num_bits)
-{
- int32_t result;
-
- if (num_bits < state->bits_left) {
- result = (((int32_t)state->current_word) << (32 - state->bits_left)) >> (32 - num_bits);
- state->bits_left -= num_bits;
- return result;
- }
-
- return a52_bitstream_get_bh_2 (state, num_bits);
-}
diff --git a/src/liba52/crc.c b/src/liba52/crc.c
deleted file mode 100644
index ac7666a90..000000000
--- a/src/liba52/crc.c
+++ /dev/null
@@ -1,73 +0,0 @@
-/*
- * crc.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 <stdlib.h>
-#include <stdio.h>
-#include <inttypes.h>
-
-static const uint16_t crc_lut[256] =
-{
- 0x0000,0x8005,0x800f,0x000a,0x801b,0x001e,0x0014,0x8011,
- 0x8033,0x0036,0x003c,0x8039,0x0028,0x802d,0x8027,0x0022,
- 0x8063,0x0066,0x006c,0x8069,0x0078,0x807d,0x8077,0x0072,
- 0x0050,0x8055,0x805f,0x005a,0x804b,0x004e,0x0044,0x8041,
- 0x80c3,0x00c6,0x00cc,0x80c9,0x00d8,0x80dd,0x80d7,0x00d2,
- 0x00f0,0x80f5,0x80ff,0x00fa,0x80eb,0x00ee,0x00e4,0x80e1,
- 0x00a0,0x80a5,0x80af,0x00aa,0x80bb,0x00be,0x00b4,0x80b1,
- 0x8093,0x0096,0x009c,0x8099,0x0088,0x808d,0x8087,0x0082,
- 0x8183,0x0186,0x018c,0x8189,0x0198,0x819d,0x8197,0x0192,
- 0x01b0,0x81b5,0x81bf,0x01ba,0x81ab,0x01ae,0x01a4,0x81a1,
- 0x01e0,0x81e5,0x81ef,0x01ea,0x81fb,0x01fe,0x01f4,0x81f1,
- 0x81d3,0x01d6,0x01dc,0x81d9,0x01c8,0x81cd,0x81c7,0x01c2,
- 0x0140,0x8145,0x814f,0x014a,0x815b,0x015e,0x0154,0x8151,
- 0x8173,0x0176,0x017c,0x8179,0x0168,0x816d,0x8167,0x0162,
- 0x8123,0x0126,0x012c,0x8129,0x0138,0x813d,0x8137,0x0132,
- 0x0110,0x8115,0x811f,0x011a,0x810b,0x010e,0x0104,0x8101,
- 0x8303,0x0306,0x030c,0x8309,0x0318,0x831d,0x8317,0x0312,
- 0x0330,0x8335,0x833f,0x033a,0x832b,0x032e,0x0324,0x8321,
- 0x0360,0x8365,0x836f,0x036a,0x837b,0x037e,0x0374,0x8371,
- 0x8353,0x0356,0x035c,0x8359,0x0348,0x834d,0x8347,0x0342,
- 0x03c0,0x83c5,0x83cf,0x03ca,0x83db,0x03de,0x03d4,0x83d1,
- 0x83f3,0x03f6,0x03fc,0x83f9,0x03e8,0x83ed,0x83e7,0x03e2,
- 0x83a3,0x03a6,0x03ac,0x83a9,0x03b8,0x83bd,0x83b7,0x03b2,
- 0x0390,0x8395,0x839f,0x039a,0x838b,0x038e,0x0384,0x8381,
- 0x0280,0x8285,0x828f,0x028a,0x829b,0x029e,0x0294,0x8291,
- 0x82b3,0x02b6,0x02bc,0x82b9,0x02a8,0x82ad,0x82a7,0x02a2,
- 0x82e3,0x02e6,0x02ec,0x82e9,0x02f8,0x82fd,0x82f7,0x02f2,
- 0x02d0,0x82d5,0x82df,0x02da,0x82cb,0x02ce,0x02c4,0x82c1,
- 0x8243,0x0246,0x024c,0x8249,0x0258,0x825d,0x8257,0x0252,
- 0x0270,0x8275,0x827f,0x027a,0x826b,0x026e,0x0264,0x8261,
- 0x0220,0x8225,0x822f,0x022a,0x823b,0x023e,0x0234,0x8231,
- 0x8213,0x0216,0x021c,0x8219,0x0208,0x820d,0x8207,0x0202
-};
-
-static uint16_t crc16_block(uint8_t *data,uint32_t num_bytes)
-{
- uint32_t i;
- uint16_t state=0;
-
- for(i=0;i<num_bytes;i++)
- state = crc_lut[data[i] ^ (state>>8)] ^ (state<<8);
-
- return state;
-}
diff --git a/src/liba52/diff_against_release.patch b/src/liba52/diff_against_release.patch
deleted file mode 100644
index d7f7ff2f2..000000000
--- a/src/liba52/diff_against_release.patch
+++ /dev/null
@@ -1,76 +0,0 @@
---- src/liba52/a52_internal.h Sun Jul 28 03:52:06 2002
-+++ src/liba52/a52_internal.h Wed Aug 28 19:01:05 2002
-@@ -84,6 +84,7 @@
- expbap_t lfe_expbap;
-
- sample_t * samples;
-+ void * samples_base;
- int downmixed;
- };
-
---- src/liba52/imdct.c Sun Jul 28 03:52:07 2002
-+++ src/liba52/imdct.c Wed Aug 28 18:55:38 2002
-@@ -38,7 +38,7 @@
-
- #include "a52.h"
- #include "a52_internal.h"
--#include "mm_accel.h"
-+#include "xineutils.h"
-
- typedef struct complex_s {
- sample_t real;
-@@ -425,7 +425,6 @@
- } else
- #endif
- {
-- fprintf (stderr, "liba52:No accelerated IMDCT transform found\n");
- ifft128 = ifft128_c;
- ifft64 = ifft64_c;
- }
---- src/liba52/parse.c Sun Jul 28 03:52:07 2002
-+++ src/liba52/parse.c Wed Aug 28 19:02:21 2002
-@@ -31,14 +31,7 @@
- #include "a52_internal.h"
- #include "bitstream.h"
- #include "tables.h"
--
--#ifdef HAVE_MEMALIGN
--/* some systems have memalign() but no declaration for it */
--void * memalign (size_t align, size_t size);
--#else
--/* assume malloc alignment is sufficient */
--#define memalign(align,size) malloc (size)
--#endif
-+#include "xineutils.h"
-
- typedef struct {
- sample_t q1[2];
-@@ -60,7 +53,7 @@
- if (state == NULL)
- return NULL;
-
-- state->samples = memalign (16, 256 * 12 * sizeof (sample_t));
-+ state->samples = xine_xmalloc_aligned (16, 256 * 12 * sizeof (sample_t), &state->samples_base);
- if (state->samples == NULL) {
- free (state);
- return NULL;
-@@ -896,6 +889,6 @@
-
- void a52_free (a52_state_t * state)
- {
-- free (state->samples);
-+ free (state->samples_base);
- free (state);
- }
---- src/liba52/bitstream.h
-+++ src/liba52/bitstream.h
-@@ -21,6 +21,10 @@
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-+#ifdef WIN32
-+#include <unistd.h>
-+#endif
-+
- /* (stolen from the kernel) */
- #ifdef WORDS_BIGENDIAN
diff --git a/src/liba52/downmix.c b/src/liba52/downmix.c
deleted file mode 100644
index b9ac1fdea..000000000
--- a/src/liba52/downmix.c
+++ /dev/null
@@ -1,655 +0,0 @@
-/*
- * downmix.c
- * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * a52dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * a52dec is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "config.h"
-
-#include <string.h>
-#include <inttypes.h>
-
-#include "a52.h"
-#include "a52_internal.h"
-
-#define CONVERT(acmod,output) (((output) << 3) + (acmod))
-
-int a52_downmix_init (int input, int flags, sample_t * level,
- sample_t clev, sample_t slev)
-{
- static uint8_t table[11][8] = {
- {A52_CHANNEL, A52_DOLBY, A52_STEREO, A52_STEREO,
- A52_STEREO, A52_STEREO, A52_STEREO, A52_STEREO},
- {A52_MONO, A52_MONO, A52_MONO, A52_MONO,
- A52_MONO, A52_MONO, A52_MONO, A52_MONO},
- {A52_CHANNEL, A52_DOLBY, A52_STEREO, A52_STEREO,
- A52_STEREO, A52_STEREO, A52_STEREO, A52_STEREO},
- {A52_CHANNEL, A52_DOLBY, A52_STEREO, A52_3F,
- A52_STEREO, A52_3F, A52_STEREO, A52_3F},
- {A52_CHANNEL, A52_DOLBY, A52_STEREO, A52_STEREO,
- A52_2F1R, A52_2F1R, A52_2F1R, A52_2F1R},
- {A52_CHANNEL, A52_DOLBY, A52_STEREO, A52_STEREO,
- A52_2F1R, A52_3F1R, A52_2F1R, A52_3F1R},
- {A52_CHANNEL, A52_DOLBY, A52_STEREO, A52_3F,
- A52_2F2R, A52_2F2R, A52_2F2R, A52_2F2R},
- {A52_CHANNEL, A52_DOLBY, A52_STEREO, A52_3F,
- A52_2F2R, A52_3F2R, A52_2F2R, A52_3F2R},
- {A52_CHANNEL1, A52_MONO, A52_MONO, A52_MONO,
- A52_MONO, A52_MONO, A52_MONO, A52_MONO},
- {A52_CHANNEL2, A52_MONO, A52_MONO, A52_MONO,
- A52_MONO, A52_MONO, A52_MONO, A52_MONO},
- {A52_CHANNEL, A52_DOLBY, A52_STEREO, A52_DOLBY,
- A52_DOLBY, A52_DOLBY, A52_DOLBY, A52_DOLBY}
- };
- int output;
-
- output = flags & A52_CHANNEL_MASK;
- if (output > A52_DOLBY)
- return -1;
-
- output = table[output][input & 7];
-
- if ((output == A52_STEREO) &&
- ((input == A52_DOLBY) || ((input == A52_3F) && (clev == LEVEL_3DB))))
- output = A52_DOLBY;
-
- if (flags & A52_ADJUST_LEVEL)
- switch (CONVERT (input & 7, output)) {
-
- case CONVERT (A52_3F, A52_MONO):
- *level *= LEVEL_3DB / (1 + clev);
- break;
-
- case CONVERT (A52_STEREO, A52_MONO):
- case CONVERT (A52_2F2R, A52_2F1R):
- case CONVERT (A52_3F2R, A52_3F1R):
- level_3db:
- *level *= LEVEL_3DB;
- break;
-
- case CONVERT (A52_3F2R, A52_2F1R):
- if (clev < LEVEL_PLUS3DB - 1)
- goto level_3db;
- /* break thru */
- case CONVERT (A52_3F, A52_STEREO):
- case CONVERT (A52_3F1R, A52_2F1R):
- case CONVERT (A52_3F1R, A52_2F2R):
- case CONVERT (A52_3F2R, A52_2F2R):
- *level /= 1 + clev;
- break;
-
- case CONVERT (A52_2F1R, A52_MONO):
- *level *= LEVEL_PLUS3DB / (2 + slev);
- break;
-
- case CONVERT (A52_2F1R, A52_STEREO):
- case CONVERT (A52_3F1R, A52_3F):
- *level /= 1 + slev * LEVEL_3DB;
- break;
-
- case CONVERT (A52_3F1R, A52_MONO):
- *level *= LEVEL_3DB / (1 + clev + 0.5 * slev);
- break;
-
- case CONVERT (A52_3F1R, A52_STEREO):
- *level /= 1 + clev + slev * LEVEL_3DB;
- break;
-
- case CONVERT (A52_2F2R, A52_MONO):
- *level *= LEVEL_3DB / (1 + slev);
- break;
-
- case CONVERT (A52_2F2R, A52_STEREO):
- case CONVERT (A52_3F2R, A52_3F):
- *level /= 1 + slev;
- break;
-
- case CONVERT (A52_3F2R, A52_MONO):
- *level *= LEVEL_3DB / (1 + clev + slev);
- break;
-
- case CONVERT (A52_3F2R, A52_STEREO):
- *level /= 1 + clev + slev;
- break;
-
- case CONVERT (A52_MONO, A52_DOLBY):
- *level *= LEVEL_PLUS3DB;
- break;
-
- case CONVERT (A52_3F, A52_DOLBY):
- case CONVERT (A52_2F1R, A52_DOLBY):
- *level *= 1 / (1 + LEVEL_3DB);
- break;
-
- case CONVERT (A52_3F1R, A52_DOLBY):
- case CONVERT (A52_2F2R, A52_DOLBY):
- *level *= 1 / (1 + 2 * LEVEL_3DB);
- break;
-
- case CONVERT (A52_3F2R, A52_DOLBY):
- *level *= 1 / (1 + 3 * LEVEL_3DB);
- break;
- }
-
- return output;
-}
-
-int a52_downmix_coeff (sample_t * coeff, int acmod, int output, sample_t level,
- sample_t clev, sample_t slev)
-{
- switch (CONVERT (acmod, output & A52_CHANNEL_MASK)) {
-
- case CONVERT (A52_CHANNEL, A52_CHANNEL):
- case CONVERT (A52_MONO, A52_MONO):
- case CONVERT (A52_STEREO, A52_STEREO):
- case CONVERT (A52_3F, A52_3F):
- case CONVERT (A52_2F1R, A52_2F1R):
- case CONVERT (A52_3F1R, A52_3F1R):
- case CONVERT (A52_2F2R, A52_2F2R):
- case CONVERT (A52_3F2R, A52_3F2R):
- case CONVERT (A52_STEREO, A52_DOLBY):
- coeff[0] = coeff[1] = coeff[2] = coeff[3] = coeff[4] = level;
- return 0;
-
- case CONVERT (A52_CHANNEL, A52_MONO):
- coeff[0] = coeff[1] = level * LEVEL_6DB;
- return 3;
-
- case CONVERT (A52_STEREO, A52_MONO):
- coeff[0] = coeff[1] = level * LEVEL_3DB;
- return 3;
-
- case CONVERT (A52_3F, A52_MONO):
- coeff[0] = coeff[2] = level * LEVEL_3DB;
- coeff[1] = level * clev * LEVEL_PLUS3DB;
- return 7;
-
- case CONVERT (A52_2F1R, A52_MONO):
- coeff[0] = coeff[1] = level * LEVEL_3DB;
- coeff[2] = level * slev * LEVEL_3DB;
- return 7;
-
- case CONVERT (A52_2F2R, A52_MONO):
- coeff[0] = coeff[1] = level * LEVEL_3DB;
- coeff[2] = coeff[3] = level * slev * LEVEL_3DB;
- return 15;
-
- case CONVERT (A52_3F1R, A52_MONO):
- coeff[0] = coeff[2] = level * LEVEL_3DB;
- coeff[1] = level * clev * LEVEL_PLUS3DB;
- coeff[3] = level * slev * LEVEL_3DB;
- return 15;
-
- case CONVERT (A52_3F2R, A52_MONO):
- coeff[0] = coeff[2] = level * LEVEL_3DB;
- coeff[1] = level * clev * LEVEL_PLUS3DB;
- coeff[3] = coeff[4] = level * slev * LEVEL_3DB;
- return 31;
-
- case CONVERT (A52_MONO, A52_DOLBY):
- coeff[0] = level * LEVEL_3DB;
- return 0;
-
- case CONVERT (A52_3F, A52_DOLBY):
- clev = LEVEL_3DB;
- case CONVERT (A52_3F, A52_STEREO):
- case CONVERT (A52_3F1R, A52_2F1R):
- case CONVERT (A52_3F2R, A52_2F2R):
- coeff[0] = coeff[2] = coeff[3] = coeff[4] = level;
- coeff[1] = level * clev;
- return 7;
-
- case CONVERT (A52_2F1R, A52_DOLBY):
- slev = 1;
- case CONVERT (A52_2F1R, A52_STEREO):
- coeff[0] = coeff[1] = level;
- coeff[2] = level * slev * LEVEL_3DB;
- return 7;
-
- case CONVERT (A52_3F1R, A52_DOLBY):
- clev = LEVEL_3DB;
- slev = 1;
- case CONVERT (A52_3F1R, A52_STEREO):
- coeff[0] = coeff[2] = level;
- coeff[1] = level * clev;
- coeff[3] = level * slev * LEVEL_3DB;
- return 15;
-
- case CONVERT (A52_2F2R, A52_DOLBY):
- slev = LEVEL_3DB;
- case CONVERT (A52_2F2R, A52_STEREO):
- coeff[0] = coeff[1] = level;
- coeff[2] = coeff[3] = level * slev;
- return 15;
-
- case CONVERT (A52_3F2R, A52_DOLBY):
- clev = LEVEL_3DB;
- case CONVERT (A52_3F2R, A52_2F1R):
- slev = LEVEL_3DB;
- case CONVERT (A52_3F2R, A52_STEREO):
- coeff[0] = coeff[2] = level;
- coeff[1] = level * clev;
- coeff[3] = coeff[4] = level * slev;
- return 31;
-
- case CONVERT (A52_3F1R, A52_3F):
- coeff[0] = coeff[1] = coeff[2] = level;
- coeff[3] = level * slev * LEVEL_3DB;
- return 13;
-
- case CONVERT (A52_3F2R, A52_3F):
- coeff[0] = coeff[1] = coeff[2] = level;
- coeff[3] = coeff[4] = level * slev;
- return 29;
-
- case CONVERT (A52_2F2R, A52_2F1R):
- coeff[0] = coeff[1] = level;
- coeff[2] = coeff[3] = level * LEVEL_3DB;
- return 12;
-
- case CONVERT (A52_3F2R, A52_3F1R):
- coeff[0] = coeff[1] = coeff[2] = level;
- coeff[3] = coeff[4] = level * LEVEL_3DB;
- return 24;
-
- case CONVERT (A52_2F1R, A52_2F2R):
- coeff[0] = coeff[1] = level;
- coeff[2] = level * LEVEL_3DB;
- return 0;
-
- case CONVERT (A52_3F1R, A52_2F2R):
- coeff[0] = coeff[2] = level;
- coeff[1] = level * clev;
- coeff[3] = level * LEVEL_3DB;
- return 7;
-
- case CONVERT (A52_3F1R, A52_3F2R):
- coeff[0] = coeff[1] = coeff[2] = level;
- coeff[3] = level * LEVEL_3DB;
- return 0;
-
- case CONVERT (A52_CHANNEL, A52_CHANNEL1):
- coeff[0] = level;
- coeff[1] = 0;
- return 0;
-
- case CONVERT (A52_CHANNEL, A52_CHANNEL2):
- coeff[0] = 0;
- coeff[1] = level;
- return 0;
- }
-
- return -1; /* NOTREACHED */
-}
-
-static void mix2to1 (sample_t * dest, sample_t * src, sample_t bias)
-{
- int i;
-
- for (i = 0; i < 256; i++)
- dest[i] += src[i] + bias;
-}
-
-static void mix3to1 (sample_t * samples, sample_t bias)
-{
- int i;
-
- for (i = 0; i < 256; i++)
- samples[i] += samples[i + 256] + samples[i + 512] + bias;
-}
-
-static void mix4to1 (sample_t * samples, sample_t bias)
-{
- int i;
-
- for (i = 0; i < 256; i++)
- samples[i] += (samples[i + 256] + samples[i + 512] +
- samples[i + 768] + bias);
-}
-
-static void mix5to1 (sample_t * samples, sample_t bias)
-{
- int i;
-
- for (i = 0; i < 256; i++)
- samples[i] += (samples[i + 256] + samples[i + 512] +
- samples[i + 768] + samples[i + 1024] + bias);
-}
-
-static void mix3to2 (sample_t * samples, sample_t bias)
-{
- int i;
- sample_t common;
-
- for (i = 0; i < 256; i++) {
- common = samples[i + 256] + bias;
- samples[i] += common;
- samples[i + 256] = samples[i + 512] + common;
- }
-}
-
-static void mix21to2 (sample_t * left, sample_t * right, sample_t bias)
-{
- int i;
- sample_t common;
-
- for (i = 0; i < 256; i++) {
- common = right[i + 256] + bias;
- left[i] += common;
- right[i] += common;
- }
-}
-
-static void mix21toS (sample_t * samples, sample_t bias)
-{
- int i;
- sample_t surround;
-
- for (i = 0; i < 256; i++) {
- surround = samples[i + 512];
- samples[i] += bias - surround;
- samples[i + 256] += bias + surround;
- }
-}
-
-static void mix31to2 (sample_t * samples, sample_t bias)
-{
- int i;
- sample_t common;
-
- for (i = 0; i < 256; i++) {
- common = samples[i + 256] + samples[i + 768] + bias;
- samples[i] += common;
- samples[i + 256] = samples[i + 512] + common;
- }
-}
-
-static void mix31toS (sample_t * samples, sample_t bias)
-{
- int i;
- sample_t common, surround;
-
- for (i = 0; i < 256; i++) {
- common = samples[i + 256] + bias;
- surround = samples[i + 768];
- samples[i] += common - surround;
- samples[i + 256] = samples[i + 512] + common + surround;
- }
-}
-
-static void mix22toS (sample_t * samples, sample_t bias)
-{
- int i;
- sample_t surround;
-
- for (i = 0; i < 256; i++) {
- surround = samples[i + 512] + samples[i + 768];
- samples[i] += bias - surround;
- samples[i + 256] += bias + surround;
- }
-}
-
-static void mix32to2 (sample_t * samples, sample_t bias)
-{
- int i;
- sample_t common;
-
- for (i = 0; i < 256; i++) {
- common = samples[i + 256] + bias;
- samples[i] += common + samples[i + 768];
- samples[i + 256] = common + samples[i + 512] + samples[i + 1024];
- }
-}
-
-static void mix32toS (sample_t * samples, sample_t bias)
-{
- int i;
- sample_t common, surround;
-
- for (i = 0; i < 256; i++) {
- common = samples[i + 256] + bias;
- surround = samples[i + 768] + samples[i + 1024];
- samples[i] += common - surround;
- samples[i + 256] = samples[i + 512] + common + surround;
- }
-}
-
-static void move2to1 (sample_t * src, sample_t * dest, sample_t bias)
-{
- int i;
-
- for (i = 0; i < 256; i++)
- dest[i] = src[i] + src[i + 256] + bias;
-}
-
-static void zero (sample_t * samples)
-{
- int i;
-
- for (i = 0; i < 256; i++)
- samples[i] = 0;
-}
-
-void a52_downmix (sample_t * samples, int acmod, int output, sample_t bias,
- sample_t clev, sample_t slev)
-{
- switch (CONVERT (acmod, output & A52_CHANNEL_MASK)) {
-
- case CONVERT (A52_CHANNEL, A52_CHANNEL2):
- memcpy (samples, samples + 256, 256 * sizeof (sample_t));
- break;
-
- case CONVERT (A52_CHANNEL, A52_MONO):
- case CONVERT (A52_STEREO, A52_MONO):
- mix_2to1:
- mix2to1 (samples, samples + 256, bias);
- break;
-
- case CONVERT (A52_2F1R, A52_MONO):
- if (slev == 0)
- goto mix_2to1;
- case CONVERT (A52_3F, A52_MONO):
- mix_3to1:
- mix3to1 (samples, bias);
- break;
-
- case CONVERT (A52_3F1R, A52_MONO):
- if (slev == 0)
- goto mix_3to1;
- case CONVERT (A52_2F2R, A52_MONO):
- if (slev == 0)
- goto mix_2to1;
- mix4to1 (samples, bias);
- break;
-
- case CONVERT (A52_3F2R, A52_MONO):
- if (slev == 0)
- goto mix_3to1;
- mix5to1 (samples, bias);
- break;
-
- case CONVERT (A52_MONO, A52_DOLBY):
- memcpy (samples + 256, samples, 256 * sizeof (sample_t));
- break;
-
- case CONVERT (A52_3F, A52_STEREO):
- case CONVERT (A52_3F, A52_DOLBY):
- mix_3to2:
- mix3to2 (samples, bias);
- break;
-
- case CONVERT (A52_2F1R, A52_STEREO):
- if (slev == 0)
- break;
- mix21to2 (samples, samples + 256, bias);
- break;
-
- case CONVERT (A52_2F1R, A52_DOLBY):
- mix21toS (samples, bias);
- break;
-
- case CONVERT (A52_3F1R, A52_STEREO):
- if (slev == 0)
- goto mix_3to2;
- mix31to2 (samples, bias);
- break;
-
- case CONVERT (A52_3F1R, A52_DOLBY):
- mix31toS (samples, bias);
- break;
-
- case CONVERT (A52_2F2R, A52_STEREO):
- if (slev == 0)
- break;
- mix2to1 (samples, samples + 512, bias);
- mix2to1 (samples + 256, samples + 768, bias);
- break;
-
- case CONVERT (A52_2F2R, A52_DOLBY):
- mix22toS (samples, bias);
- break;
-
- case CONVERT (A52_3F2R, A52_STEREO):
- if (slev == 0)
- goto mix_3to2;
- mix32to2 (samples, bias);
- break;
-
- case CONVERT (A52_3F2R, A52_DOLBY):
- mix32toS (samples, bias);
- break;
-
- case CONVERT (A52_3F1R, A52_3F):
- if (slev == 0)
- break;
- mix21to2 (samples, samples + 512, bias);
- break;
-
- case CONVERT (A52_3F2R, A52_3F):
- if (slev == 0)
- break;
- mix2to1 (samples, samples + 768, bias);
- mix2to1 (samples + 512, samples + 1024, bias);
- break;
-
- case CONVERT (A52_3F1R, A52_2F1R):
- mix3to2 (samples, bias);
- memcpy (samples + 512, samples + 768, 256 * sizeof (sample_t));
- break;
-
- case CONVERT (A52_2F2R, A52_2F1R):
- mix2to1 (samples + 512, samples + 768, bias);
- break;
-
- case CONVERT (A52_3F2R, A52_2F1R):
- mix3to2 (samples, bias);
- move2to1 (samples + 768, samples + 512, bias);
- break;
-
- case CONVERT (A52_3F2R, A52_3F1R):
- mix2to1 (samples + 768, samples + 1024, bias);
- break;
-
- case CONVERT (A52_2F1R, A52_2F2R):
- memcpy (samples + 768, samples + 512, 256 * sizeof (sample_t));
- break;
-
- case CONVERT (A52_3F1R, A52_2F2R):
- mix3to2 (samples, bias);
- memcpy (samples + 512, samples + 768, 256 * sizeof (sample_t));
- break;
-
- case CONVERT (A52_3F2R, A52_2F2R):
- mix3to2 (samples, bias);
- memcpy (samples + 512, samples + 768, 256 * sizeof (sample_t));
- memcpy (samples + 768, samples + 1024, 256 * sizeof (sample_t));
- break;
-
- case CONVERT (A52_3F1R, A52_3F2R):
- memcpy (samples + 1027, samples + 768, 256 * sizeof (sample_t));
- break;
- }
-}
-
-void a52_upmix (sample_t * samples, int acmod, int output)
-{
- switch (CONVERT (acmod, output & A52_CHANNEL_MASK)) {
-
- case CONVERT (A52_CHANNEL, A52_CHANNEL2):
- memcpy (samples + 256, samples, 256 * sizeof (sample_t));
- break;
-
- case CONVERT (A52_3F2R, A52_MONO):
- zero (samples + 1024);
- case CONVERT (A52_3F1R, A52_MONO):
- case CONVERT (A52_2F2R, A52_MONO):
- zero (samples + 768);
- case CONVERT (A52_3F, A52_MONO):
- case CONVERT (A52_2F1R, A52_MONO):
- zero (samples + 512);
- case CONVERT (A52_CHANNEL, A52_MONO):
- case CONVERT (A52_STEREO, A52_MONO):
- zero (samples + 256);
- break;
-
- case CONVERT (A52_3F2R, A52_STEREO):
- case CONVERT (A52_3F2R, A52_DOLBY):
- zero (samples + 1024);
- case CONVERT (A52_3F1R, A52_STEREO):
- case CONVERT (A52_3F1R, A52_DOLBY):
- zero (samples + 768);
- case CONVERT (A52_3F, A52_STEREO):
- case CONVERT (A52_3F, A52_DOLBY):
- mix_3to2:
- memcpy (samples + 512, samples + 256, 256 * sizeof (sample_t));
- zero (samples + 256);
- break;
-
- case CONVERT (A52_2F2R, A52_STEREO):
- case CONVERT (A52_2F2R, A52_DOLBY):
- zero (samples + 768);
- case CONVERT (A52_2F1R, A52_STEREO):
- case CONVERT (A52_2F1R, A52_DOLBY):
- zero (samples + 512);
- break;
-
- case CONVERT (A52_3F2R, A52_3F):
- zero (samples + 1024);
- case CONVERT (A52_3F1R, A52_3F):
- case CONVERT (A52_2F2R, A52_2F1R):
- zero (samples + 768);
- break;
-
- case CONVERT (A52_3F2R, A52_3F1R):
- zero (samples + 1024);
- break;
-
- case CONVERT (A52_3F2R, A52_2F1R):
- zero (samples + 1024);
- case CONVERT (A52_3F1R, A52_2F1R):
- mix_31to21:
- memcpy (samples + 768, samples + 512, 256 * sizeof (sample_t));
- goto mix_3to2;
-
- case CONVERT (A52_3F2R, A52_2F2R):
- memcpy (samples + 1024, samples + 768, 256 * sizeof (sample_t));
- goto mix_31to21;
- }
-}
diff --git a/src/liba52/imdct.c b/src/liba52/imdct.c
deleted file mode 100644
index 672b54c2e..000000000
--- a/src/liba52/imdct.c
+++ /dev/null
@@ -1,431 +0,0 @@
-/*
- * imdct.c
- * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * The ifft algorithms in this file have been largely inspired by Dan
- * Bernstein's work, djbfft, available at http://cr.yp.to/djbfft.html
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * a52dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * a52dec is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "config.h"
-
-#include <math.h>
-#include <stdio.h>
-#ifdef LIBA52_DJBFFT
-#include <fftc4.h>
-#endif
-#ifndef M_PI
-#define M_PI 3.1415926535897932384626433832795029
-#endif
-#include <inttypes.h>
-
-#include "a52.h"
-#include "a52_internal.h"
-#include "xineutils.h"
-
-typedef struct complex_s {
- sample_t real;
- sample_t imag;
-} complex_t;
-
-static uint8_t fftorder[] = {
- 0,128, 64,192, 32,160,224, 96, 16,144, 80,208,240,112, 48,176,
- 8,136, 72,200, 40,168,232,104,248,120, 56,184, 24,152,216, 88,
- 4,132, 68,196, 36,164,228,100, 20,148, 84,212,244,116, 52,180,
- 252,124, 60,188, 28,156,220, 92, 12,140, 76,204,236,108, 44,172,
- 2,130, 66,194, 34,162,226, 98, 18,146, 82,210,242,114, 50,178,
- 10,138, 74,202, 42,170,234,106,250,122, 58,186, 26,154,218, 90,
- 254,126, 62,190, 30,158,222, 94, 14,142, 78,206,238,110, 46,174,
- 6,134, 70,198, 38,166,230,102,246,118, 54,182, 22,150,214, 86
-};
-
-/* Root values for IFFT */
-static sample_t roots16[3];
-static sample_t roots32[7];
-static sample_t roots64[15];
-static sample_t roots128[31];
-
-/* Twiddle factors for IMDCT */
-static complex_t pre1[128];
-static complex_t post1[64];
-static complex_t pre2[64];
-static complex_t post2[32];
-
-static sample_t a52_imdct_window[256];
-
-static void (* ifft128) (complex_t * buf);
-static void (* ifft64) (complex_t * buf);
-
-static inline void ifft2 (complex_t * buf)
-{
- double r, i;
-
- r = buf[0].real;
- i = buf[0].imag;
- buf[0].real += buf[1].real;
- buf[0].imag += buf[1].imag;
- buf[1].real = r - buf[1].real;
- buf[1].imag = i - buf[1].imag;
-}
-
-static inline void ifft4 (complex_t * buf)
-{
- double tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8;
-
- tmp1 = buf[0].real + buf[1].real;
- tmp2 = buf[3].real + buf[2].real;
- tmp3 = buf[0].imag + buf[1].imag;
- tmp4 = buf[2].imag + buf[3].imag;
- tmp5 = buf[0].real - buf[1].real;
- tmp6 = buf[0].imag - buf[1].imag;
- tmp7 = buf[2].imag - buf[3].imag;
- tmp8 = buf[3].real - buf[2].real;
-
- buf[0].real = tmp1 + tmp2;
- buf[0].imag = tmp3 + tmp4;
- buf[2].real = tmp1 - tmp2;
- buf[2].imag = tmp3 - tmp4;
- buf[1].real = tmp5 + tmp7;
- buf[1].imag = tmp6 + tmp8;
- buf[3].real = tmp5 - tmp7;
- buf[3].imag = tmp6 - tmp8;
-}
-
-/* the basic split-radix ifft butterfly */
-
-#define BUTTERFLY(a0,a1,a2,a3,wr,wi) do { \
- tmp5 = a2.real * wr + a2.imag * wi; \
- tmp6 = a2.imag * wr - a2.real * wi; \
- tmp7 = a3.real * wr - a3.imag * wi; \
- tmp8 = a3.imag * wr + a3.real * wi; \
- tmp1 = tmp5 + tmp7; \
- tmp2 = tmp6 + tmp8; \
- tmp3 = tmp6 - tmp8; \
- tmp4 = tmp7 - tmp5; \
- a2.real = a0.real - tmp1; \
- a2.imag = a0.imag - tmp2; \
- a3.real = a1.real - tmp3; \
- a3.imag = a1.imag - tmp4; \
- a0.real += tmp1; \
- a0.imag += tmp2; \
- a1.real += tmp3; \
- a1.imag += tmp4; \
-} while (0)
-
-/* split-radix ifft butterfly, specialized for wr=1 wi=0 */
-
-#define BUTTERFLY_ZERO(a0,a1,a2,a3) do { \
- tmp1 = a2.real + a3.real; \
- tmp2 = a2.imag + a3.imag; \
- tmp3 = a2.imag - a3.imag; \
- tmp4 = a3.real - a2.real; \
- a2.real = a0.real - tmp1; \
- a2.imag = a0.imag - tmp2; \
- a3.real = a1.real - tmp3; \
- a3.imag = a1.imag - tmp4; \
- a0.real += tmp1; \
- a0.imag += tmp2; \
- a1.real += tmp3; \
- a1.imag += tmp4; \
-} while (0)
-
-/* split-radix ifft butterfly, specialized for wr=wi */
-
-#define BUTTERFLY_HALF(a0,a1,a2,a3,w) do { \
- tmp5 = (a2.real + a2.imag) * w; \
- tmp6 = (a2.imag - a2.real) * w; \
- tmp7 = (a3.real - a3.imag) * w; \
- tmp8 = (a3.imag + a3.real) * w; \
- tmp1 = tmp5 + tmp7; \
- tmp2 = tmp6 + tmp8; \
- tmp3 = tmp6 - tmp8; \
- tmp4 = tmp7 - tmp5; \
- a2.real = a0.real - tmp1; \
- a2.imag = a0.imag - tmp2; \
- a3.real = a1.real - tmp3; \
- a3.imag = a1.imag - tmp4; \
- a0.real += tmp1; \
- a0.imag += tmp2; \
- a1.real += tmp3; \
- a1.imag += tmp4; \
-} while (0)
-
-static inline void ifft8 (complex_t * buf)
-{
- double tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8;
-
- ifft4 (buf);
- ifft2 (buf + 4);
- ifft2 (buf + 6);
- BUTTERFLY_ZERO (buf[0], buf[2], buf[4], buf[6]);
- BUTTERFLY_HALF (buf[1], buf[3], buf[5], buf[7], roots16[1]);
-}
-
-static void ifft_pass (complex_t * buf, sample_t * weight, int n)
-{
- complex_t * buf1;
- complex_t * buf2;
- complex_t * buf3;
- double tmp1, tmp2, tmp3, tmp4, tmp5, tmp6, tmp7, tmp8;
- int i;
-
- buf++;
- buf1 = buf + n;
- buf2 = buf + 2 * n;
- buf3 = buf + 3 * n;
-
- BUTTERFLY_ZERO (buf[-1], buf1[-1], buf2[-1], buf3[-1]);
-
- i = n - 1;
-
- do {
- BUTTERFLY (buf[0], buf1[0], buf2[0], buf3[0], weight[n], weight[2*i]);
- buf++;
- buf1++;
- buf2++;
- buf3++;
- weight++;
- } while (--i);
-}
-
-static void ifft16 (complex_t * buf)
-{
- ifft8 (buf);
- ifft4 (buf + 8);
- ifft4 (buf + 12);
- ifft_pass (buf, roots16 - 4, 4);
-}
-
-static void ifft32 (complex_t * buf)
-{
- ifft16 (buf);
- ifft8 (buf + 16);
- ifft8 (buf + 24);
- ifft_pass (buf, roots32 - 8, 8);
-}
-
-static void ifft64_c (complex_t * buf)
-{
- ifft32 (buf);
- ifft16 (buf + 32);
- ifft16 (buf + 48);
- ifft_pass (buf, roots64 - 16, 16);
-}
-
-static void ifft128_c (complex_t * buf)
-{
- ifft32 (buf);
- ifft16 (buf + 32);
- ifft16 (buf + 48);
- ifft_pass (buf, roots64 - 16, 16);
-
- ifft32 (buf + 64);
- ifft32 (buf + 96);
- ifft_pass (buf, roots128 - 32, 32);
-}
-
-void a52_imdct_512 (sample_t * data, sample_t * delay, sample_t bias)
-{
- int i, k;
- sample_t t_r, t_i, a_r, a_i, b_r, b_i, w_1, w_2;
- const sample_t * window = a52_imdct_window;
- complex_t buf[128];
-
- for (i = 0; i < 128; i++) {
- k = fftorder[i];
- t_r = pre1[i].real;
- t_i = pre1[i].imag;
-
- buf[i].real = t_i * data[255-k] + t_r * data[k];
- buf[i].imag = t_r * data[255-k] - t_i * data[k];
- }
-
- ifft128 (buf);
-
- /* Post IFFT complex multiply plus IFFT complex conjugate*/
- /* Window and convert to real valued signal */
- for (i = 0; i < 64; i++) {
- /* y[n] = z[n] * (xcos1[n] + j * xsin1[n]) ; */
- t_r = post1[i].real;
- t_i = post1[i].imag;
-
- a_r = t_r * buf[i].real + t_i * buf[i].imag;
- a_i = t_i * buf[i].real - t_r * buf[i].imag;
- b_r = t_i * buf[127-i].real + t_r * buf[127-i].imag;
- b_i = t_r * buf[127-i].real - t_i * buf[127-i].imag;
-
- w_1 = window[2*i];
- w_2 = window[255-2*i];
- data[2*i] = delay[2*i] * w_2 - a_r * w_1 + bias;
- data[255-2*i] = delay[2*i] * w_1 + a_r * w_2 + bias;
- delay[2*i] = a_i;
-
- w_1 = window[2*i+1];
- w_2 = window[254-2*i];
- data[2*i+1] = delay[2*i+1] * w_2 + b_r * w_1 + bias;
- data[254-2*i] = delay[2*i+1] * w_1 - b_r * w_2 + bias;
- delay[2*i+1] = b_i;
- }
-}
-
-void a52_imdct_256(sample_t * data, sample_t * delay, sample_t bias)
-{
- int i, k;
- sample_t t_r, t_i, a_r, a_i, b_r, b_i, c_r, c_i, d_r, d_i, w_1, w_2;
- const sample_t * window = a52_imdct_window;
- complex_t buf1[64], buf2[64];
-
- /* Pre IFFT complex multiply plus IFFT cmplx conjugate */
- for (i = 0; i < 64; i++) {
- k = fftorder[i];
- t_r = pre2[i].real;
- t_i = pre2[i].imag;
-
- buf1[i].real = t_i * data[254-k] + t_r * data[k];
- buf1[i].imag = t_r * data[254-k] - t_i * data[k];
-
- buf2[i].real = t_i * data[255-k] + t_r * data[k+1];
- buf2[i].imag = t_r * data[255-k] - t_i * data[k+1];
- }
-
- ifft64 (buf1);
- ifft64 (buf2);
-
- /* Post IFFT complex multiply */
- /* Window and convert to real valued signal */
- for (i = 0; i < 32; i++) {
- /* y1[n] = z1[n] * (xcos2[n] + j * xs in2[n]) ; */
- t_r = post2[i].real;
- t_i = post2[i].imag;
-
- a_r = t_r * buf1[i].real + t_i * buf1[i].imag;
- a_i = t_i * buf1[i].real - t_r * buf1[i].imag;
- b_r = t_i * buf1[63-i].real + t_r * buf1[63-i].imag;
- b_i = t_r * buf1[63-i].real - t_i * buf1[63-i].imag;
-
- c_r = t_r * buf2[i].real + t_i * buf2[i].imag;
- c_i = t_i * buf2[i].real - t_r * buf2[i].imag;
- d_r = t_i * buf2[63-i].real + t_r * buf2[63-i].imag;
- d_i = t_r * buf2[63-i].real - t_i * buf2[63-i].imag;
-
- w_1 = window[2*i];
- w_2 = window[255-2*i];
- data[2*i] = delay[2*i] * w_2 - a_r * w_1 + bias;
- data[255-2*i] = delay[2*i] * w_1 + a_r * w_2 + bias;
- delay[2*i] = c_i;
-
- w_1 = window[128+2*i];
- w_2 = window[127-2*i];
- data[128+2*i] = delay[127-2*i] * w_2 + a_i * w_1 + bias;
- data[127-2*i] = delay[127-2*i] * w_1 - a_i * w_2 + bias;
- delay[127-2*i] = c_r;
-
- w_1 = window[2*i+1];
- w_2 = window[254-2*i];
- data[2*i+1] = delay[2*i+1] * w_2 - b_i * w_1 + bias;
- data[254-2*i] = delay[2*i+1] * w_1 + b_i * w_2 + bias;
- delay[2*i+1] = d_r;
-
- w_1 = window[129+2*i];
- w_2 = window[126-2*i];
- data[129+2*i] = delay[126-2*i] * w_2 + b_r * w_1 + bias;
- data[126-2*i] = delay[126-2*i] * w_1 - b_r * w_2 + bias;
- delay[126-2*i] = d_i;
- }
-}
-
-static double besselI0 (double x)
-{
- double bessel = 1;
- int i = 100;
-
- do
- bessel = bessel * x / (i * i) + 1;
- while (--i);
- return bessel;
-}
-
-void a52_imdct_init (uint32_t mm_accel)
-{
- int i, k;
- double sum;
-
- /* compute imdct window - kaiser-bessel derived window, alpha = 5.0 */
- sum = 0;
- for (i = 0; i < 256; i++) {
- sum += besselI0 (i * (256 - i) * (5 * M_PI / 256) * (5 * M_PI / 256));
- a52_imdct_window[i] = sum;
- }
- sum++;
- for (i = 0; i < 256; i++)
- a52_imdct_window[i] = sqrt (a52_imdct_window[i] / sum);
-
- for (i = 0; i < 3; i++)
- roots16[i] = cos ((M_PI / 8) * (i + 1));
-
- for (i = 0; i < 7; i++)
- roots32[i] = cos ((M_PI / 16) * (i + 1));
-
- for (i = 0; i < 15; i++)
- roots64[i] = cos ((M_PI / 32) * (i + 1));
-
- for (i = 0; i < 31; i++)
- roots128[i] = cos ((M_PI / 64) * (i + 1));
-
- for (i = 0; i < 64; i++) {
- k = fftorder[i] / 2 + 64;
- pre1[i].real = cos ((M_PI / 256) * (k - 0.25));
- pre1[i].imag = sin ((M_PI / 256) * (k - 0.25));
- }
-
- for (i = 64; i < 128; i++) {
- k = fftorder[i] / 2 + 64;
- pre1[i].real = -cos ((M_PI / 256) * (k - 0.25));
- pre1[i].imag = -sin ((M_PI / 256) * (k - 0.25));
- }
-
- for (i = 0; i < 64; i++) {
- post1[i].real = cos ((M_PI / 256) * (i + 0.5));
- post1[i].imag = sin ((M_PI / 256) * (i + 0.5));
- }
-
- for (i = 0; i < 64; i++) {
- k = fftorder[i] / 4;
- pre2[i].real = cos ((M_PI / 128) * (k - 0.25));
- pre2[i].imag = sin ((M_PI / 128) * (k - 0.25));
- }
-
- for (i = 0; i < 32; i++) {
- post2[i].real = cos ((M_PI / 128) * (i + 0.5));
- post2[i].imag = sin ((M_PI / 128) * (i + 0.5));
- }
-
-#ifdef LIBA52_DJBFFT
- if (mm_accel & MM_ACCEL_DJBFFT) {
- fprintf (stderr, "liba52:Using djbfft for IMDCT transform\n");
- ifft128 = (void (*) (complex_t *)) fftc4_un128;
- ifft64 = (void (*) (complex_t *)) fftc4_un64;
- } else
-#endif
- {
- ifft128 = ifft128_c;
- ifft64 = ifft64_c;
- }
-}
diff --git a/src/liba52/parse.c b/src/liba52/parse.c
deleted file mode 100644
index c7531ec61..000000000
--- a/src/liba52/parse.c
+++ /dev/null
@@ -1,894 +0,0 @@
-/*
- * parse.c
- * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * a52dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * a52dec is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "config.h"
-
-#include <stdlib.h>
-#include <string.h>
-#include <inttypes.h>
-
-#include "a52.h"
-#include "a52_internal.h"
-#include "bitstream.h"
-#include "tables.h"
-#include "xineutils.h"
-
-typedef struct {
- sample_t q1[2];
- sample_t q2[2];
- sample_t q4;
- int q1_ptr;
- int q2_ptr;
- int q4_ptr;
-} quantizer_t;
-
-static uint8_t halfrate[12] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3};
-
-a52_state_t * a52_init (uint32_t mm_accel)
-{
- a52_state_t * state;
- int i;
-
- state = calloc(1, sizeof (a52_state_t));
- if (state == NULL)
- return NULL;
-
- state->samples = xine_xmalloc_aligned (16, 256 * 12 * sizeof (sample_t), &state->samples_base);
- if (state->samples == NULL) {
- free (state);
- return NULL;
- }
-
- for (i = 0; i < 256 * 12; i++)
- state->samples[i] = 0;
-
- state->downmixed = 1;
-
- state->lfsr_state = 1;
-
- a52_imdct_init (mm_accel);
-
- return state;
-}
-
-sample_t * a52_samples (a52_state_t * state)
-{
- return state->samples;
-}
-
-int a52_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) ? A52_DOLBY : acmod) |
- ((buf[6] & lfeon[acmod]) ? A52_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:
- *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 a52_frame (a52_state_t * state, uint8_t * buf, int * flags,
- sample_t * level, sample_t bias)
-{
- static sample_t clev[4] = {LEVEL_3DB, LEVEL_45DB, LEVEL_6DB, LEVEL_45DB};
- static sample_t 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;
-
- a52_bitstream_set_ptr (state, buf + 6);
- bitstream_get (state, 3); /* skip acmod we already parsed */
-
- if ((acmod == 2) && (bitstream_get (state, 2) == 2)) /* dsurmod */
- acmod = A52_DOLBY;
-
- if ((acmod & 1) && (acmod != 1))
- state->clev = clev[bitstream_get (state, 2)]; /* cmixlev */
-
- if (acmod & 4)
- state->slev = slev[bitstream_get (state, 2)]; /* surmixlev */
-
- state->lfeon = bitstream_get (state, 1);
-
- state->output = a52_downmix_init (acmod, *flags, level,
- state->clev, state->slev);
- if (state->output < 0)
- return 1;
- if (state->lfeon && (*flags & A52_LFE))
- state->output |= A52_LFE;
- *flags = state->output;
- /* the 2* compensates for differences in imdct */
- state->dynrng = state->level = 2 * *level;
- state->bias = bias;
- state->dynrnge = 1;
- state->dynrngcall = NULL;
- state->cplba.deltbae = DELTA_BIT_NONE;
- state->ba[0].deltbae = state->ba[1].deltbae = state->ba[2].deltbae =
- state->ba[3].deltbae = state->ba[4].deltbae = DELTA_BIT_NONE;
-
- chaninfo = !acmod;
- do {
- bitstream_get (state, 5); /* dialnorm */
- if (bitstream_get (state, 1)) /* compre */
- bitstream_get (state, 8); /* compr */
- if (bitstream_get (state, 1)) /* langcode */
- bitstream_get (state, 8); /* langcod */
- if (bitstream_get (state, 1)) /* audprodie */
- bitstream_get (state, 7); /* mixlevel + roomtyp */
- } while (chaninfo--);
-
- bitstream_get (state, 2); /* copyrightb + origbs */
-
- if (bitstream_get (state, 1)) /* timecod1e */
- bitstream_get (state, 14); /* timecod1 */
- if (bitstream_get (state, 1)) /* timecod2e */
- bitstream_get (state, 14); /* timecod2 */
-
- if (bitstream_get (state, 1)) { /* addbsie */
- int addbsil;
-
- addbsil = bitstream_get (state, 6);
- do {
- bitstream_get (state, 8); /* addbsi */
- } while (addbsil--);
- }
-
- return 0;
-}
-
-void a52_dynrng (a52_state_t * state,
- sample_t (* call) (sample_t, void *), void * data)
-{
- state->dynrnge = 0;
- if (call) {
- state->dynrnge = 1;
- state->dynrngcall = call;
- state->dynrngdata = data;
- }
-}
-
-static int parse_exponents (a52_state_t * state, int expstr, int ngrps,
- uint8_t exponent, uint8_t * dest)
-{
- int exps;
-
- while (ngrps--) {
- exps = bitstream_get (state, 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 (a52_state_t * state, int8_t * deltba)
-{
- int deltnseg, deltlen, delta, j;
-
- memset (deltba, 0, 50);
-
- deltnseg = bitstream_get (state, 3);
- j = 0;
- do {
- j += bitstream_get (state, 5);
- deltlen = bitstream_get (state, 4);
- delta = bitstream_get (state, 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, a52_state_t * state)
-{
- int i;
-
- if ((state->csnroffst) ||
- (state->chincpl && state->cplba.bai >> 3) || /* cplinu, fsnroffst */
- (state->lfeon && state->lfeba.bai >> 3)) /* fsnroffst */
- return 0;
- for (i = 0; i < nfchans; i++)
- if (state->ba[i].bai >> 3) /* fsnroffst */
- return 0;
- return 1;
-}
-
-static inline int16_t dither_gen (a52_state_t * state)
-{
- int16_t nstate;
-
- nstate = dither_lut[state->lfsr_state >> 8] ^ (state->lfsr_state << 8);
-
- state->lfsr_state = (uint16_t) nstate;
-
- return nstate;
-}
-
-static void coeff_get (a52_state_t * state, sample_t * coeff,
- expbap_t * expbap, quantizer_t * quantizer,
- sample_t level, int dither, int end)
-{
- int i;
- uint8_t * exp;
- int8_t * bap;
- sample_t factor[25];
-
- for (i = 0; i <= 24; i++)
- factor[i] = scale_factor[i] * level;
-
- exp = expbap->exp;
- bap = expbap->bap;
-
- for (i = 0; i < end; i++) {
- int bapi;
-
- bapi = bap[i];
- switch (bapi) {
- case 0:
- if (dither) {
- coeff[i] = dither_gen (state) * LEVEL_3DB * factor[exp[i]];
- continue;
- } else {
- coeff[i] = 0;
- continue;
- }
-
- case -1:
- if (quantizer->q1_ptr >= 0) {
- coeff[i] = quantizer->q1[quantizer->q1_ptr--] * factor[exp[i]];
- continue;
- } else {
- int code;
-
- code = bitstream_get (state, 5);
-
- quantizer->q1_ptr = 1;
- quantizer->q1[0] = q_1_2[code];
- quantizer->q1[1] = q_1_1[code];
- coeff[i] = q_1_0[code] * factor[exp[i]];
- continue;
- }
-
- case -2:
- if (quantizer->q2_ptr >= 0) {
- coeff[i] = quantizer->q2[quantizer->q2_ptr--] * factor[exp[i]];
- continue;
- } else {
- int code;
-
- code = bitstream_get (state, 7);
-
- quantizer->q2_ptr = 1;
- quantizer->q2[0] = q_2_2[code];
- quantizer->q2[1] = q_2_1[code];
- coeff[i] = q_2_0[code] * factor[exp[i]];
- continue;
- }
-
- case 3:
- coeff[i] = q_3[bitstream_get (state, 3)] * factor[exp[i]];
- continue;
-
- case -3:
- if (quantizer->q4_ptr == 0) {
- quantizer->q4_ptr = -1;
- coeff[i] = quantizer->q4 * factor[exp[i]];
- continue;
- } else {
- int code;
-
- code = bitstream_get (state, 7);
-
- quantizer->q4_ptr = 0;
- quantizer->q4 = q_4_1[code];
- coeff[i] = q_4_0[code] * factor[exp[i]];
- continue;
- }
-
- case 4:
- coeff[i] = q_5[bitstream_get (state, 4)] * factor[exp[i]];
- continue;
-
- default:
- coeff[i] = ((bitstream_get_2 (state, bapi) << (16 - bapi)) *
- factor[exp[i]]);
- }
- }
-}
-
-static void coeff_get_coupling (a52_state_t * state, int nfchans,
- sample_t * coeff, sample_t (* samples)[256],
- quantizer_t * quantizer, uint8_t dithflag[5])
-{
- int cplbndstrc, bnd, i, i_end, ch;
- uint8_t * exp;
- int8_t * bap;
- sample_t cplco[5];
-
- exp = state->cpl_expbap.exp;
- bap = state->cpl_expbap.bap;
- bnd = 0;
- cplbndstrc = state->cplbndstrc;
- i = state->cplstrtmant;
- while (i < state->cplendmant) {
- i_end = i + 12;
- while (cplbndstrc & 1) {
- cplbndstrc >>= 1;
- i_end += 12;
- }
- cplbndstrc >>= 1;
- for (ch = 0; ch < nfchans; ch++)
- cplco[ch] = state->cplco[ch][bnd] * coeff[ch];
- bnd++;
-
- while (i < i_end) {
- sample_t cplcoeff;
- int bapi;
-
- bapi = bap[i];
- switch (bapi) {
- case 0:
- cplcoeff = LEVEL_3DB * scale_factor[exp[i]];
- for (ch = 0; ch < nfchans; ch++)
- if ((state->chincpl >> ch) & 1) {
- if (dithflag[ch])
- samples[ch][i] = (cplcoeff * cplco[ch] *
- dither_gen (state));
- else
- samples[ch][i] = 0;
- }
- i++;
- continue;
-
- case -1:
- if (quantizer->q1_ptr >= 0) {
- cplcoeff = quantizer->q1[quantizer->q1_ptr--];
- break;
- } else {
- int code;
-
- code = bitstream_get (state, 5);
-
- quantizer->q1_ptr = 1;
- quantizer->q1[0] = q_1_2[code];
- quantizer->q1[1] = q_1_1[code];
- cplcoeff = q_1_0[code];
- break;
- }
-
- case -2:
- if (quantizer->q2_ptr >= 0) {
- cplcoeff = quantizer->q2[quantizer->q2_ptr--];
- break;
- } else {
- int code;
-
- code = bitstream_get (state, 7);
-
- quantizer->q2_ptr = 1;
- quantizer->q2[0] = q_2_2[code];
- quantizer->q2[1] = q_2_1[code];
- cplcoeff = q_2_0[code];
- break;
- }
-
- case 3:
- cplcoeff = q_3[bitstream_get (state, 3)];
- break;
-
- case -3:
- if (quantizer->q4_ptr == 0) {
- quantizer->q4_ptr = -1;
- cplcoeff = quantizer->q4;
- break;
- } else {
- int code;
-
- code = bitstream_get (state, 7);
-
- quantizer->q4_ptr = 0;
- quantizer->q4 = q_4_1[code];
- cplcoeff = q_4_0[code];
- break;
- }
-
- case 4:
- cplcoeff = q_5[bitstream_get (state, 4)];
- break;
-
- default:
- cplcoeff = bitstream_get_2 (state, bapi) << (16 - bapi);
- }
-
- cplcoeff *= scale_factor[exp[i]];
- for (ch = 0; ch < nfchans; ch++)
- if ((state->chincpl >> ch) & 1)
- samples[ch][i] = cplcoeff * cplco[ch];
- i++;
- }
- }
-}
-
-int a52_block (a52_state_t * state)
-{
- static const uint8_t nfchans_tbl[] = {2, 1, 2, 3, 3, 4, 4, 5, 1, 1, 2};
- 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];
- sample_t coeff[5];
- int chanbias;
- quantizer_t quantizer;
- sample_t * samples;
-
- nfchans = nfchans_tbl[state->acmod];
-
- for (i = 0; i < nfchans; i++)
- blksw[i] = bitstream_get (state, 1);
-
- for (i = 0; i < nfchans; i++)
- dithflag[i] = bitstream_get (state, 1);
-
- chaninfo = !state->acmod;
- do {
- if (bitstream_get (state, 1)) { /* dynrnge */
- int dynrng;
-
- dynrng = bitstream_get_2 (state, 8);
- if (state->dynrnge) {
- sample_t range;
-
- range = ((((dynrng & 0x1f) | 0x20) << 13) *
- scale_factor[3 - (dynrng >> 5)]);
- if (state->dynrngcall)
- range = state->dynrngcall (range, state->dynrngdata);
- state->dynrng = state->level * range;
- }
- }
- } while (chaninfo--);
-
- if (bitstream_get (state, 1)) { /* cplstre */
- state->chincpl = 0;
- if (bitstream_get (state, 1)) { /* cplinu */
- static uint8_t 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 |= bitstream_get (state, 1) << i;
- switch (state->acmod) {
- case 0: case 1:
- return 1;
- case 2:
- state->phsflginu = bitstream_get (state, 1);
- }
- cplbegf = bitstream_get (state, 4);
- cplendf = bitstream_get (state, 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;
-
- state->cplbndstrc = 0;
- for (i = 0; i < ncplsubnd - 1; i++)
- if (bitstream_get (state, 1)) {
- state->cplbndstrc |= 1 << i;
- state->ncplbnd--;
- }
- }
- }
-
- if (state->chincpl) { /* cplinu */
- int j, cplcoe;
-
- cplcoe = 0;
- for (i = 0; i < nfchans; i++)
- if ((state->chincpl) >> i & 1)
- if (bitstream_get (state, 1)) { /* cplcoe */
- int mstrcplco, cplcoexp, cplcomant;
-
- cplcoe = 1;
- mstrcplco = 3 * bitstream_get (state, 2);
- for (j = 0; j < state->ncplbnd; j++) {
- cplcoexp = bitstream_get (state, 4);
- cplcomant = bitstream_get (state, 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 (state, 1)) /* phsflg */
- state->cplco[1][j] = -state->cplco[1][j];
- }
-
- if ((state->acmod == 2) && (bitstream_get (state, 1))) { /* rematstr */
- int end;
-
- state->rematflg = 0;
- end = (state->chincpl) ? state->cplstrtmant : 253; /* cplinu */
- i = 0;
- do
- state->rematflg |= bitstream_get (state, 1) << i;
- while (rematrix_band[i++] < end);
- }
-
- cplexpstr = EXP_REUSE;
- lfeexpstr = EXP_REUSE;
- if (state->chincpl) /* cplinu */
- cplexpstr = bitstream_get (state, 2);
- for (i = 0; i < nfchans; i++)
- chexpstr[i] = bitstream_get (state, 2);
- if (state->lfeon)
- lfeexpstr = bitstream_get (state, 1);
-
- for (i = 0; i < nfchans; i++)
- if (chexpstr[i] != EXP_REUSE) {
- if ((state->chincpl >> i) & 1)
- state->endmant[i] = state->cplstrtmant;
- else {
- int chbwcod;
-
- chbwcod = bitstream_get (state, 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 = 64;
- ncplgrps = ((state->cplendmant - state->cplstrtmant) /
- (3 << (cplexpstr - 1)));
- cplabsexp = bitstream_get (state, 4) << 1;
- if (parse_exponents (state, cplexpstr, ncplgrps, cplabsexp,
- state->cpl_expbap.exp + state->cplstrtmant))
- return 1;
- }
- for (i = 0; i < nfchans; i++)
- if (chexpstr[i] != EXP_REUSE) {
- int grp_size, nchgrps;
-
- do_bit_alloc |= 1 << i;
- grp_size = 3 << (chexpstr[i] - 1);
- nchgrps = (state->endmant[i] + grp_size - 4) / grp_size;
- state->fbw_expbap[i].exp[0] = bitstream_get (state, 4);
- if (parse_exponents (state, chexpstr[i], nchgrps,
- state->fbw_expbap[i].exp[0],
- state->fbw_expbap[i].exp + 1))
- return 1;
- bitstream_get (state, 2); /* gainrng */
- }
- if (lfeexpstr != EXP_REUSE) {
- do_bit_alloc |= 32;
- state->lfe_expbap.exp[0] = bitstream_get (state, 4);
- if (parse_exponents (state, lfeexpstr, 2, state->lfe_expbap.exp[0],
- state->lfe_expbap.exp + 1))
- return 1;
- }
-
- if (bitstream_get (state, 1)) { /* baie */
- do_bit_alloc = -1;
- state->bai = bitstream_get (state, 11);
- }
- if (bitstream_get (state, 1)) { /* snroffste */
- do_bit_alloc = -1;
- state->csnroffst = bitstream_get (state, 6);
- if (state->chincpl) /* cplinu */
- state->cplba.bai = bitstream_get (state, 7);
- for (i = 0; i < nfchans; i++)
- state->ba[i].bai = bitstream_get (state, 7);
- if (state->lfeon)
- state->lfeba.bai = bitstream_get (state, 7);
- }
- if ((state->chincpl) && (bitstream_get (state, 1))) { /* cplleake */
- do_bit_alloc |= 64;
- state->cplfleak = 9 - bitstream_get (state, 3);
- state->cplsleak = 9 - bitstream_get (state, 3);
- }
-
- if (bitstream_get (state, 1)) { /* deltbaie */
- do_bit_alloc = -1;
- if (state->chincpl) /* cplinu */
- state->cplba.deltbae = bitstream_get (state, 2);
- for (i = 0; i < nfchans; i++)
- state->ba[i].deltbae = bitstream_get (state, 2);
- if (state->chincpl && /* cplinu */
- (state->cplba.deltbae == DELTA_BIT_NEW) &&
- parse_deltba (state, state->cplba.deltba))
- return 1;
- for (i = 0; i < nfchans; i++)
- if ((state->ba[i].deltbae == DELTA_BIT_NEW) &&
- parse_deltba (state, state->ba[i].deltba))
- return 1;
- }
-
- if (do_bit_alloc) {
- if (zero_snr_offsets (nfchans, state)) {
- memset (state->cpl_expbap.bap, 0, sizeof (state->cpl_expbap.bap));
- for (i = 0; i < nfchans; i++)
- memset (state->fbw_expbap[i].bap, 0,
- sizeof (state->fbw_expbap[i].bap));
- memset (state->lfe_expbap.bap, 0, sizeof (state->lfe_expbap.bap));
- } else {
- if (state->chincpl && (do_bit_alloc & 64)) /* cplinu */
- a52_bit_allocate (state, &state->cplba, state->cplstrtbnd,
- state->cplstrtmant, state->cplendmant,
- state->cplfleak << 8, state->cplsleak << 8,
- &state->cpl_expbap);
- for (i = 0; i < nfchans; i++)
- if (do_bit_alloc & (1 << i))
- a52_bit_allocate (state, state->ba + i, 0, 0,
- state->endmant[i], 0, 0,
- state->fbw_expbap +i);
- if (state->lfeon && (do_bit_alloc & 32)) {
- state->lfeba.deltbae = DELTA_BIT_NONE;
- a52_bit_allocate (state, &state->lfeba, 0, 0, 7, 0, 0,
- &state->lfe_expbap);
- }
- }
- }
-
- if (bitstream_get (state, 1)) { /* skiple */
- i = bitstream_get (state, 9); /* skipl */
- while (i--)
- bitstream_get (state, 8);
- }
-
- samples = state->samples;
- if (state->output & A52_LFE)
- samples += 256; /* shift for LFE channel */
-
- chanbias = a52_downmix_coeff (coeff, state->acmod, state->output,
- state->dynrng, state->clev, state->slev);
-
- quantizer.q1_ptr = quantizer.q2_ptr = quantizer.q4_ptr = -1;
- done_cpl = 0;
-
- for (i = 0; i < nfchans; i++) {
- int j;
-
- coeff_get (state, samples + 256 * i, state->fbw_expbap +i, &quantizer,
- coeff[i], dithflag[i], state->endmant[i]);
-
- if ((state->chincpl >> i) & 1) {
- if (!done_cpl) {
- done_cpl = 1;
- coeff_get_coupling (state, nfchans, coeff,
- (sample_t (*)[256])samples, &quantizer,
- dithflag);
- }
- j = state->cplendmant;
- } else
- j = state->endmant[i];
- do
- (samples + 256 * i)[j] = 0;
- while (++j < 256);
- }
-
- if (state->acmod == 2) {
- int j, end, band, rematflg;
-
- end = ((state->endmant[0] < state->endmant[1]) ?
- state->endmant[0] : state->endmant[1]);
-
- i = 0;
- j = 13;
- rematflg = state->rematflg;
- do {
- if (! (rematflg & 1)) {
- rematflg >>= 1;
- j = rematrix_band[i++];
- continue;
- }
- rematflg >>= 1;
- band = rematrix_band[i++];
- if (band > end)
- band = end;
- do {
- sample_t tmp0, tmp1;
-
- tmp0 = samples[j];
- tmp1 = (samples+256)[j];
- samples[j] = tmp0 + tmp1;
- (samples+256)[j] = tmp0 - tmp1;
- } while (++j < band);
- } while (j < end);
- }
-
- if (state->lfeon) {
- if (state->output & A52_LFE) {
- coeff_get (state, samples - 256, &state->lfe_expbap, &quantizer,
- state->dynrng, 0, 7);
- for (i = 7; i < 256; i++)
- (samples-256)[i] = 0;
- a52_imdct_512 (samples - 256, samples + 1536 - 256, state->bias);
- } else {
- /* just skip the LFE coefficients */
- coeff_get (state, samples + 1280, &state->lfe_expbap, &quantizer,
- 0, 0, 7);
- }
- }
-
- i = 0;
- if (nfchans_tbl[state->output & A52_CHANNEL_MASK] < nfchans)
- for (i = 1; i < nfchans; i++)
- if (blksw[i] != blksw[0])
- break;
-
- if (i < nfchans) {
- if (state->downmixed) {
- state->downmixed = 0;
- a52_upmix (samples + 1536, state->acmod, state->output);
- }
-
- for (i = 0; i < nfchans; i++) {
- sample_t bias;
-
- bias = 0;
- if (!(chanbias & (1 << i)))
- bias = state->bias;
-
- if (coeff[i]) {
- if (blksw[i])
- a52_imdct_256 (samples + 256 * i, samples + 1536 + 256 * i,
- bias);
- else
- a52_imdct_512 (samples + 256 * i, samples + 1536 + 256 * i,
- bias);
- } else {
- int j;
-
- for (j = 0; j < 256; j++)
- (samples + 256 * i)[j] = bias;
- }
- }
-
- a52_downmix (samples, state->acmod, state->output, state->bias,
- state->clev, state->slev);
- } else {
- nfchans = nfchans_tbl[state->output & A52_CHANNEL_MASK];
-
- a52_downmix (samples, state->acmod, state->output, 0,
- state->clev, state->slev);
-
- if (!state->downmixed) {
- state->downmixed = 1;
- a52_downmix (samples + 1536, state->acmod, state->output, 0,
- state->clev, state->slev);
- }
-
- if (blksw[0])
- for (i = 0; i < nfchans; i++)
- a52_imdct_256 (samples + 256 * i, samples + 1536 + 256 * i,
- state->bias);
- else
- for (i = 0; i < nfchans; i++)
- a52_imdct_512 (samples + 256 * i, samples + 1536 + 256 * i,
- state->bias);
- }
-
- return 0;
-}
-
-void a52_free (a52_state_t * state)
-{
- free (state->samples_base);
- free (state);
-}
diff --git a/src/liba52/tables.h b/src/liba52/tables.h
deleted file mode 100644
index a35543db7..000000000
--- a/src/liba52/tables.h
+++ /dev/null
@@ -1,246 +0,0 @@
-/*
- * tables.h
- * Copyright (C) 2000-2002 Michel Lespinasse <walken@zoy.org>
- * Copyright (C) 1999-2000 Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
- *
- * This file is part of a52dec, a free ATSC A-52 stream decoder.
- * See http://liba52.sourceforge.net/ for updates.
- *
- * a52dec is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * a52dec is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-static const 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 const 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 const 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 sample_t 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 sample_t 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 sample_t 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 sample_t 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 sample_t 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 sample_t 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 sample_t 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 sample_t 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 sample_t 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 sample_t 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 sample_t scale_factor[25] = {
- 0.000030517578125,
- 0.0000152587890625,
- 0.00000762939453125,
- 0.000003814697265625,
- 0.0000019073486328125,
- 0.00000095367431640625,
- 0.000000476837158203125,
- 0.0000002384185791015625,
- 0.00000011920928955078125,
- 0.000000059604644775390625,
- 0.0000000298023223876953125,
- 0.00000001490116119384765625,
- 0.000000007450580596923828125,
- 0.0000000037252902984619140625,
- 0.00000000186264514923095703125,
- 0.000000000931322574615478515625,
- 0.0000000004656612873077392578125,
- 0.00000000023283064365386962890625,
- 0.000000000116415321826934814453125,
- 0.0000000000582076609134674072265625,
- 0.00000000002910383045673370361328125,
- 0.000000000014551915228366851806640625,
- 0.0000000000072759576141834259033203125,
- 0.00000000000363797880709171295166015625,
- 0.000000000001818989403545856475830078125
-};
-
-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
-};
diff --git a/src/liba52/xine_a52_decoder.c b/src/liba52/xine_a52_decoder.c
deleted file mode 100644
index b4b628c81..000000000
--- a/src/liba52/xine_a52_decoder.c
+++ /dev/null
@@ -1,875 +0,0 @@
-/*
- * Copyright (C) 2000-2003 the xine project
- *
- * This file is part of xine, a free video player.
- *
- * xine is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * xine is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * stuff needed to turn liba52 into a xine decoder plugin
- */
-
-#ifndef __sun
-/* required for swab() */
-#define _XOPEN_SOURCE 500
-#endif
-/* avoid compiler warnings */
-#define _BSD_SOURCE 1
-
-#include "config.h"
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <string.h>
-#include <sys/types.h>
-#include <sys/stat.h>
-#include <fcntl.h>
-#include <assert.h>
-
-#define LOG_MODULE "a52_decoder"
-#define LOG_VERBOSE
-/*
-#define LOG
-#define LOG_PTS
-*/
-
-#include "xine_internal.h"
-#include "audio_out.h"
-
-#ifdef HAVE_A52DEC_A52_H
-# include <a52dec/a52.h>
-#else
-# include "a52.h"
-#endif
-
-#include "buffer.h"
-#include "xineutils.h"
-
-#include "crc.c"
-
-#undef DEBUG_A52
-#ifdef DEBUG_A52
-int a52file;
-#endif
-
-typedef struct {
- audio_decoder_class_t decoder_class;
- config_values_t *config;
-
- float a52_level;
- int disable_dynrng_compress;
- int enable_surround_downmix;
-
-} a52dec_class_t;
-
-typedef struct a52dec_decoder_s {
- audio_decoder_t audio_decoder;
-
- a52dec_class_t *class;
- xine_stream_t *stream;
- int64_t pts;
- int64_t pts_list[5];
- int32_t pts_list_position;
-
- uint8_t frame_buffer[3840];
- uint8_t *frame_ptr;
- int sync_state;
- int frame_length, frame_todo;
- uint16_t syncword;
-
- a52_state_t *a52_state;
- int a52_flags;
- int a52_bit_rate;
- int a52_sample_rate;
- int have_lfe;
-
- int a52_flags_map[11];
- int ao_flags_map[11];
-
- int audio_caps;
- int bypass_mode;
- int output_sampling_rate;
- int output_open;
- int output_mode;
-
-} a52dec_decoder_t;
-
-struct frmsize_s
-{
- uint16_t bit_rate;
- uint16_t frm_size[3];
-};
-
-static const struct frmsize_s frmsizecod_tbl[64] =
-{
- { 32 ,{64 ,69 ,96 } },
- { 32 ,{64 ,70 ,96 } },
- { 40 ,{80 ,87 ,120 } },
- { 40 ,{80 ,88 ,120 } },
- { 48 ,{96 ,104 ,144 } },
- { 48 ,{96 ,105 ,144 } },
- { 56 ,{112 ,121 ,168 } },
- { 56 ,{112 ,122 ,168 } },
- { 64 ,{128 ,139 ,192 } },
- { 64 ,{128 ,140 ,192 } },
- { 80 ,{160 ,174 ,240 } },
- { 80 ,{160 ,175 ,240 } },
- { 96 ,{192 ,208 ,288 } },
- { 96 ,{192 ,209 ,288 } },
- { 112 ,{224 ,243 ,336 } },
- { 112 ,{224 ,244 ,336 } },
- { 128 ,{256 ,278 ,384 } },
- { 128 ,{256 ,279 ,384 } },
- { 160 ,{320 ,348 ,480 } },
- { 160 ,{320 ,349 ,480 } },
- { 192 ,{384 ,417 ,576 } },
- { 192 ,{384 ,418 ,576 } },
- { 224 ,{448 ,487 ,672 } },
- { 224 ,{448 ,488 ,672 } },
- { 256 ,{512 ,557 ,768 } },
- { 256 ,{512 ,558 ,768 } },
- { 320 ,{640 ,696 ,960 } },
- { 320 ,{640 ,697 ,960 } },
- { 384 ,{768 ,835 ,1152 } },
- { 384 ,{768 ,836 ,1152 } },
- { 448 ,{896 ,975 ,1344 } },
- { 448 ,{896 ,976 ,1344 } },
- { 512 ,{1024 ,1114 ,1536 } },
- { 512 ,{1024 ,1115 ,1536 } },
- { 576 ,{1152 ,1253 ,1728 } },
- { 576 ,{1152 ,1254 ,1728 } },
- { 640 ,{1280 ,1393 ,1920 } },
- { 640 ,{1280 ,1394 ,1920 } }
-};
-
-/* config callbacks */
-static void a52_level_change_cb(void *this_gen, xine_cfg_entry_t *entry);
-static void dynrng_compress_change_cb(void *this_gen, xine_cfg_entry_t *entry);
-static void surround_downmix_change_cb(void *this_gen, xine_cfg_entry_t *entry);
-
-
-static void a52dec_reset (audio_decoder_t *this_gen) {
-
- a52dec_decoder_t *this = (a52dec_decoder_t *) this_gen;
-
- this->syncword = 0;
- this->sync_state = 0;
- this->pts = 0;
- this->pts_list[0] = 0;
- this->pts_list_position = 0;
-}
-
-static void a52dec_discontinuity (audio_decoder_t *this_gen) {
-
- a52dec_decoder_t *this = (a52dec_decoder_t *) this_gen;
-
- this->pts = 0;
- this->pts_list[0] = 0;
- this->pts_list_position = 0;
-}
-
-static inline int16_t blah (int32_t i) {
-
- if (i > 0x43c07fff)
- return 32767;
- else if (i < 0x43bf8000)
- return -32768;
- else
- return i - 0x43c00000;
-}
-
-static inline void float_to_int (float * _f, int16_t * s16, int num_channels) {
- int i;
- int32_t * f = (int32_t *) _f; /* XXX assumes IEEE float format */
-
- for (i = 0; i < 256; i++) {
- s16[num_channels*i] = blah (f[i]);
- }
-}
-
-static inline void mute_channel (int16_t * s16, int num_channels) {
- int i;
-
- for (i = 0; i < 256; i++) {
- s16[num_channels*i] = 0;
- }
-}
-
-static void a52dec_decode_frame (a52dec_decoder_t *this, int64_t pts, int preview_mode) {
-
- int output_mode = AO_CAP_MODE_STEREO;
-
- /*
- * do we want to decode this frame in software?
- */
-#ifdef LOG_PTS
- printf("a52dec:decode_frame:pts=%lld\n",pts);
-#endif
- if (!this->bypass_mode) {
-
- int a52_output_flags, i;
- sample_t level = this->class->a52_level;
- audio_buffer_t *buf;
- int16_t *int_samples;
- sample_t *samples = a52_samples(this->a52_state);
-
- /*
- * oki, decode this frame in software
- */
-
- /* determine output mode */
-
- a52_output_flags = this->a52_flags_map[this->a52_flags & A52_CHANNEL_MASK];
-
- if (a52_frame (this->a52_state,
- this->frame_buffer,
- &a52_output_flags,
- &level, 384)) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "liba52: a52_frame error\n");
- return;
- }
-
- if (this->class->disable_dynrng_compress)
- a52_dynrng (this->a52_state, NULL, NULL);
-
- this->have_lfe = a52_output_flags & A52_LFE;
- if (this->have_lfe)
- if (this->audio_caps & AO_CAP_MODE_5_1CHANNEL) {
- output_mode = AO_CAP_MODE_5_1CHANNEL;
- } else if (this->audio_caps & AO_CAP_MODE_4_1CHANNEL) {
- output_mode = AO_CAP_MODE_4_1CHANNEL;
- } else {
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, "liba52: WHAT DO I DO!!!\n");
- output_mode = this->ao_flags_map[a52_output_flags];
- }
- else
- output_mode = this->ao_flags_map[a52_output_flags];
- /*
- * (re-)open output device
- */
-
- if (!this->output_open
- || (this->a52_sample_rate != this->output_sampling_rate)
- || (output_mode != this->output_mode)) {
-
- if (this->output_open)
- this->stream->audio_out->close (this->stream->audio_out, this->stream);
-
-
- this->output_open = (this->stream->audio_out->open) (this->stream->audio_out,
- this->stream, 16,
- this->a52_sample_rate,
- output_mode) ;
- this->output_sampling_rate = this->a52_sample_rate;
- this->output_mode = output_mode;
- }
-
-
- if (!this->output_open || preview_mode)
- return;
-
-
- /*
- * decode a52 and convert/interleave samples
- */
-
- buf = this->stream->audio_out->get_buffer (this->stream->audio_out);
- int_samples = buf->mem;
- buf->num_frames = 256*6;
-
- for (i = 0; i < 6; i++) {
- if (a52_block (this->a52_state)) {
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "liba52: a52_block error on audio channel %d\n", i);
-#if 0
- for(n=0;n<2000;n++) {
- printf("%02x ",this->frame_buffer[n]);
- if ((n % 32) == 0) printf("\n");
- }
- printf("\n");
-#endif
- buf->num_frames = 0;
- break;
- }
-
- switch (output_mode) {
- case AO_CAP_MODE_MONO:
- float_to_int (&samples[0], int_samples+(i*256), 1);
- break;
- case AO_CAP_MODE_STEREO:
- float_to_int (&samples[0*256], int_samples+(i*256*2), 2);
- float_to_int (&samples[1*256], int_samples+(i*256*2)+1, 2);
- break;
- case AO_CAP_MODE_4CHANNEL:
- float_to_int (&samples[0*256], int_samples+(i*256*4), 4); /* L */
- float_to_int (&samples[1*256], int_samples+(i*256*4)+1, 4); /* R */
- float_to_int (&samples[2*256], int_samples+(i*256*4)+2, 4); /* RL */
- float_to_int (&samples[3*256], int_samples+(i*256*4)+3, 4); /* RR */
- break;
- case AO_CAP_MODE_4_1CHANNEL:
- float_to_int (&samples[0*256], int_samples+(i*256*6)+5, 6); /* LFE */
- float_to_int (&samples[1*256], int_samples+(i*256*6)+0, 6); /* L */
- float_to_int (&samples[2*256], int_samples+(i*256*6)+1, 6); /* R */
- float_to_int (&samples[3*256], int_samples+(i*256*6)+2, 6); /* RL */
- float_to_int (&samples[4*256], int_samples+(i*256*6)+3, 6); /* RR */
- mute_channel ( int_samples+(i*256*6)+4, 6); /* C */
- break;
- case AO_CAP_MODE_5CHANNEL:
- float_to_int (&samples[0*256], int_samples+(i*256*6)+0, 6); /* L */
- float_to_int (&samples[1*256], int_samples+(i*256*6)+4, 6); /* C */
- float_to_int (&samples[2*256], int_samples+(i*256*6)+1, 6); /* R */
- float_to_int (&samples[3*256], int_samples+(i*256*6)+2, 6); /* RL */
- float_to_int (&samples[4*256], int_samples+(i*256*6)+3, 6); /* RR */
- mute_channel ( int_samples+(i*256*6)+5, 6); /* LFE */
- break;
- case AO_CAP_MODE_5_1CHANNEL:
- float_to_int (&samples[0*256], int_samples+(i*256*6)+5, 6); /* lfe */
- float_to_int (&samples[1*256], int_samples+(i*256*6)+0, 6); /* L */
- float_to_int (&samples[2*256], int_samples+(i*256*6)+4, 6); /* C */
- float_to_int (&samples[3*256], int_samples+(i*256*6)+1, 6); /* R */
- float_to_int (&samples[4*256], int_samples+(i*256*6)+2, 6); /* RL */
- float_to_int (&samples[5*256], int_samples+(i*256*6)+3, 6); /* RR */
- break;
- default:
- xprintf (this->stream->xine, XINE_VERBOSITY_DEBUG, "liba52: help - unsupported mode %08x\n", output_mode);
- }
- }
-
- lprintf ("%d frames output\n", buf->num_frames);
-
- /* output decoded samples */
-
- buf->vpts = pts;
-
- this->stream->audio_out->put_buffer (this->stream->audio_out, buf, this->stream);
-
- } else {
-
- /*
- * loop through a52 data
- */
-
- if (!this->output_open) {
-
- int sample_rate, bit_rate, flags;
-
- a52_syncinfo (this->frame_buffer, &flags, &sample_rate, &bit_rate);
-
- this->output_open = (this->stream->audio_out->open) (this->stream->audio_out,
- this->stream, 16,
- sample_rate,
- AO_CAP_MODE_A52) ;
- this->output_mode = AO_CAP_MODE_A52;
- }
-
- if (this->output_open && !preview_mode) {
- /* SPDIF Passthrough
- * Build SPDIF Header and encaps the A52 audio data in it.
- */
- uint32_t syncword, crc1, fscod,frmsizecod,bsid,bsmod,frame_size;
- uint8_t *data_out,*data_in;
- audio_buffer_t *buf = this->stream->audio_out->get_buffer (this->stream->audio_out);
- data_in=(uint8_t *) this->frame_buffer;
- data_out=(uint8_t *) buf->mem;
- syncword = data_in[0] | (data_in[1] << 8);
- crc1 = data_in[2] | (data_in[3] << 8);
- fscod = (data_in[4] >> 6) & 0x3;
- frmsizecod = data_in[4] & 0x3f;
- bsid = (data_in[5] >> 3) & 0x1f;
- bsmod = data_in[5] & 0x7; /* bsmod, stream = 0 */
- frame_size = frmsizecod_tbl[frmsizecod].frm_size[fscod] ;
-
- data_out[0] = 0x72; data_out[1] = 0xf8; /* spdif syncword */
- data_out[2] = 0x1f; data_out[3] = 0x4e; /* .............. */
- data_out[4] = 0x01; /* AC3 data */
- data_out[5] = bsmod; /* bsmod, stream = 0 */
- data_out[6] = (frame_size << 4) & 0xff; /* frame_size * 16 */
- data_out[7] = ((frame_size ) >> 4) & 0xff;
- swab(data_in, &data_out[8], frame_size * 2 );
-
- buf->num_frames = 1536;
- buf->vpts = pts;
-
- this->stream->audio_out->put_buffer (this->stream->audio_out, buf, this->stream);
-
- }
- }
-}
-
-static void a52dec_decode_data (audio_decoder_t *this_gen, buf_element_t *buf) {
-
- a52dec_decoder_t *this = (a52dec_decoder_t *) this_gen;
- uint8_t *current = buf->content;
- uint8_t *sync_start=current + 1;
- uint8_t *end = buf->content + buf->size;
- uint8_t byte;
- int32_t n;
- uint16_t crc16;
- uint16_t crc16_result;
-
- lprintf ("decode data %d bytes of type %08x, pts=%"PRId64"\n",
- buf->size, buf->type, buf->pts);
- lprintf ("decode data decoder_info=%d, %d\n",buf->decoder_info[1],buf->decoder_info[2]);
-
- if (buf->decoder_flags & BUF_FLAG_HEADER)
- return;
-
- /* swap byte pairs if this is RealAudio DNET data */
- if (buf->type == BUF_AUDIO_DNET) {
-
- lprintf ("byte-swapping dnet\n");
-
- while (current != end) {
- byte = *current++;
- *(current - 1) = *current;
- *current++ = byte;
- }
-
- /* reset */
- current = buf->content;
- end = buf->content + buf->size;
- }
-
- /* A52 packs come from the DVD in blocks of about 2048 bytes.
- * Only 1 PTS values can be assigned to each block.
- * An A52 frame is about 1700 bytes long.
- * So, a single A52 packs can contain 2 A52 frames (or the beginning of an A52 frame at least).
- * If we have a PTS value, which A52 frame does it apply to? The A52 pack tells us that.
- * So, the info about which A52 frame the PTS applies to is contained in decoder_info sent from the demuxer.
- *
- * The PTS value from the A52 pack (DVD sector) can only be applied at the start of an A52 frame.
- * We call the start of an A52 frame a frame header.
- * So, if a A52 pack has 2 "Number of frame headers" is means that the A52 pack contains 2 A52 frame headers.
- * The "First access unit" then tells us which A52 frame the PTS value applies to.
- *
- * Take the following example: -
- * PACK1: PTS = 10. Contains the entire A52 frame1, followed by the beginning of the frame2. PTS applies to frame1.
- * PACK2: PTS = 1000, Contains the rest of frame2, and the whole of frame3. and the start of frame4. PTS applies to frame4.
- * PACK3: PTS = 0 (none), Contains the rest of frame4.
- *
- * Output should be: -
- * frame1, PTS=10
- * frame2, PTS=0
- * frame3, PTS=0
- * frame4, PTS=1000
- *
- * So, we have to keep track of PTS values from previous A52 packs here, otherwise they get put on the wrong frame.
- */
-
-
- /* FIXME: the code here does not match the explanation above */
- if (buf->pts) {
- int32_t info;
- info = buf->decoder_info[1];
- this->pts = buf->pts;
- this->pts_list[this->pts_list_position]=buf->pts;
- this->pts_list_position++;
- if( this->pts_list_position > 3 )
- this->pts_list_position = 3;
- if (info == 2) {
- this->pts_list[this->pts_list_position]=0;
- this->pts_list_position++;
- if( this->pts_list_position > 3 )
- this->pts_list_position = 3;
- }
- }
-#if 0
- for(n=0;n < buf->size;n++) {
- if ((n % 32) == 0) printf("\n");
- printf("%x ", current[n]);
- }
- printf("\n");
-#endif
-
- lprintf ("processing...state %d\n", this->sync_state);
-
- while (current < end) {
- switch (this->sync_state) {
- case 0: /* Looking for sync header */
- this->syncword = (this->syncword << 8) | *current++;
- if (this->syncword == 0x0b77) {
-
- this->frame_buffer[0] = 0x0b;
- this->frame_buffer[1] = 0x77;
-
- this->sync_state = 1;
- this->frame_ptr = this->frame_buffer+2;
- }
- break;
-
- case 1: /* Looking for enough bytes for sync_info. */
- sync_start = current - 1;
- *this->frame_ptr++ = *current++;
- if ((this->frame_ptr - this->frame_buffer) > 16) {
- int a52_flags_old = this->a52_flags;
- int a52_sample_rate_old = this->a52_sample_rate;
- int a52_bit_rate_old = this->a52_bit_rate;
-
- this->frame_length = a52_syncinfo (this->frame_buffer,
- &this->a52_flags,
- &this->a52_sample_rate,
- &this->a52_bit_rate);
-
- if (this->frame_length < 80) { /* Invalid a52 frame_length */
- this->syncword = 0;
- current = sync_start;
- this->sync_state = 0;
- break;
- }
-
- lprintf("Frame length = %d\n",this->frame_length);
-
- this->frame_todo = this->frame_length - 17;
- this->sync_state = 2;
- if (!_x_meta_info_get(this->stream, XINE_META_INFO_AUDIOCODEC) ||
- a52_flags_old != this->a52_flags ||
- a52_sample_rate_old != this->a52_sample_rate ||
- a52_bit_rate_old != this->a52_bit_rate) {
-
- switch (this->a52_flags & A52_CHANNEL_MASK) {
- case A52_3F2R:
- if (this->a52_flags & A52_LFE)
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "A/52 5.1");
- else
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "A/52 5.0");
- break;
- case A52_3F1R:
- case A52_2F2R:
- if (this->a52_flags & A52_LFE)
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "A/52 4.1");
- else
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "A/52 4.0");
- break;
- case A52_2F1R:
- case A52_3F:
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "A/52 3.0");
- break;
- case A52_STEREO:
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "A/52 2.0 (stereo)");
- break;
- case A52_DOLBY:
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "A/52 2.0 (dolby)");
- break;
- case A52_MONO:
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "A/52 1.0");
- break;
- default:
- _x_meta_info_set_utf8(this->stream, XINE_META_INFO_AUDIOCODEC, "A/52");
- break;
- }
-
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_AUDIO_BITRATE, this->a52_bit_rate);
- _x_stream_info_set(this->stream, XINE_STREAM_INFO_AUDIO_SAMPLERATE, this->a52_sample_rate);
- }
- }
- break;
-
- case 2: /* Filling frame_buffer with sync_info bytes */
- *this->frame_ptr++ = *current++;
- this->frame_todo--;
- if (this->frame_todo < 1) {
- this->sync_state = 3;
- } else break;
-
- case 3: /* Ready for decode */
- crc16 = (uint16_t) ((this->frame_buffer[2] << 8) | this->frame_buffer[3]) ;
- crc16_result = crc16_block(&this->frame_buffer[2], this->frame_length - 2) ; /* frame_length */
- if (crc16_result != 0) { /* CRC16 failed */
- xprintf(this->stream->xine, XINE_VERBOSITY_DEBUG, "liba52:a52 frame failed crc16 checksum.\n");
- current = sync_start;
- this->pts = 0;
- this->syncword = 0;
- this->sync_state = 0;
- break;
- }
-#if 0
- a52dec_decode_frame (this, this->pts_list[0], buf->decoder_flags & BUF_FLAG_PREVIEW);
-#else
- a52dec_decode_frame (this, this->pts, buf->decoder_flags & BUF_FLAG_PREVIEW);
-#endif
- for(n=0;n<4;n++) {
- this->pts_list[n] = this->pts_list[n+1];
- }
- this->pts_list_position--;
- if( this->pts_list_position < 0 )
- this->pts_list_position = 0;
-#if 0
- printf("liba52: pts_list = %lld, %lld, %lld\n",
- this->pts_list[0],
- this->pts_list[1],
- this->pts_list[2]);
-#endif
- case 4: /* Clear up ready for next frame */
- this->pts = 0;
- this->syncword = 0;
- this->sync_state = 0;
- break;
- default: /* No come here */
- break;
- }
- }
-
-#ifdef DEBUG_A52
- write (a52file, this->frame_buffer, this->frame_length);
-#endif
-}
-
-static void a52dec_dispose (audio_decoder_t *this_gen) {
-
- a52dec_decoder_t *this = (a52dec_decoder_t *) this_gen;
-
- if (this->output_open)
- this->stream->audio_out->close (this->stream->audio_out, this->stream);
-
- this->output_open = 0;
-
- a52_free(this->a52_state);
- this->a52_state = NULL;
-
-#ifdef DEBUG_A52
- close (a52file);
-#endif
- free (this_gen);
-}
-
-static audio_decoder_t *open_plugin (audio_decoder_class_t *class_gen, xine_stream_t *stream) {
-
- a52dec_decoder_t *this ;
-
- lprintf ("open_plugin called\n");
-
- this = calloc(1, sizeof (a52dec_decoder_t));
-
- this->audio_decoder.decode_data = a52dec_decode_data;
- this->audio_decoder.reset = a52dec_reset;
- this->audio_decoder.discontinuity = a52dec_discontinuity;
- this->audio_decoder.dispose = a52dec_dispose;
- this->stream = stream;
- this->class = (a52dec_class_t *) class_gen;
-
- /* int i; */
-
- this->audio_caps = stream->audio_out->get_capabilities(stream->audio_out);
- this->syncword = 0;
- this->sync_state = 0;
- this->output_open = 0;
- this->pts = 0;
- this->pts_list[0] = 0;
- this->pts_list_position = 0;
-
- if( !this->a52_state ) {
- this->a52_state =
-#ifdef HAVE_A52DEC_A52_H /* External liba52 */
- /* When using external liba52, enable _all_ capabilities, even
- if that might break stuff if they add some new capability
- that depends on CPU's caps.
- At the moment the only capability is DJBFFT, which is tested
- only if djbfft is being used at compile time.
-
- The actual question would be: why don't they check for
- capabilities themselves?
- */
-#warning "Enabling all external liba52 capabilities."
- a52_init (0xFFFFFFFF)
-#else
- a52_init (xine_mm_accel())
-#endif
- ;
- }
-
- /*
- * find out if this driver supports a52 output
- * or, if not, how many channels we've got
- */
-
- if (this->audio_caps & AO_CAP_MODE_A52)
- this->bypass_mode = 1;
- else {
- this->bypass_mode = 0;
-
- this->a52_flags_map[A52_MONO] = A52_MONO;
- this->a52_flags_map[A52_STEREO] = ((this->class->enable_surround_downmix ? A52_DOLBY : A52_STEREO));
- this->a52_flags_map[A52_3F] = ((this->class->enable_surround_downmix ? A52_DOLBY : A52_STEREO));
- this->a52_flags_map[A52_2F1R] = ((this->class->enable_surround_downmix ? A52_DOLBY : A52_STEREO));
- this->a52_flags_map[A52_3F1R] = ((this->class->enable_surround_downmix ? A52_DOLBY : A52_STEREO));
- this->a52_flags_map[A52_2F2R] = ((this->class->enable_surround_downmix ? A52_DOLBY : A52_STEREO));
- this->a52_flags_map[A52_3F2R] = ((this->class->enable_surround_downmix ? A52_DOLBY : A52_STEREO));
- this->a52_flags_map[A52_DOLBY] = ((this->class->enable_surround_downmix ? A52_DOLBY : A52_STEREO));
-
- this->ao_flags_map[A52_MONO] = AO_CAP_MODE_MONO;
- this->ao_flags_map[A52_STEREO] = AO_CAP_MODE_STEREO;
- this->ao_flags_map[A52_3F] = AO_CAP_MODE_STEREO;
- this->ao_flags_map[A52_2F1R] = AO_CAP_MODE_STEREO;
- this->ao_flags_map[A52_3F1R] = AO_CAP_MODE_STEREO;
- this->ao_flags_map[A52_2F2R] = AO_CAP_MODE_STEREO;
- this->ao_flags_map[A52_3F2R] = AO_CAP_MODE_STEREO;
- this->ao_flags_map[A52_DOLBY] = AO_CAP_MODE_STEREO;
-
- /* find best mode */
- if (this->audio_caps & AO_CAP_MODE_5_1CHANNEL) {
-
- this->a52_flags_map[A52_2F2R] = A52_2F2R;
- this->a52_flags_map[A52_3F2R] = A52_3F2R | A52_LFE;
- this->ao_flags_map[A52_2F2R] = AO_CAP_MODE_4CHANNEL;
- this->ao_flags_map[A52_3F2R] = AO_CAP_MODE_5CHANNEL;
-
- } else if (this->audio_caps & AO_CAP_MODE_5CHANNEL) {
-
- this->a52_flags_map[A52_2F2R] = A52_2F2R;
- this->a52_flags_map[A52_3F2R] = A52_3F2R;
- this->ao_flags_map[A52_2F2R] = AO_CAP_MODE_4CHANNEL;
- this->ao_flags_map[A52_3F2R] = AO_CAP_MODE_5CHANNEL;
-
- } else if (this->audio_caps & AO_CAP_MODE_4_1CHANNEL) {
-
- this->a52_flags_map[A52_2F2R] = A52_2F2R;
- this->a52_flags_map[A52_3F2R] = A52_2F2R | A52_LFE;
- this->ao_flags_map[A52_2F2R] = AO_CAP_MODE_4CHANNEL;
- this->ao_flags_map[A52_3F2R] = AO_CAP_MODE_4CHANNEL;
-
- } else if (this->audio_caps & AO_CAP_MODE_4CHANNEL) {
-
- this->a52_flags_map[A52_2F2R] = A52_2F2R;
- this->a52_flags_map[A52_3F2R] = A52_2F2R;
-
- this->ao_flags_map[A52_2F2R] = AO_CAP_MODE_4CHANNEL;
- this->ao_flags_map[A52_3F2R] = AO_CAP_MODE_4CHANNEL;
-
- /* else if (this->audio_caps & AO_CAP_MODE_STEREO)
- defaults are ok */
- } else if (!(this->audio_caps & AO_CAP_MODE_STEREO)) {
- xprintf (this->stream->xine, XINE_VERBOSITY_LOG, _("HELP! a mono-only audio driver?!\n"));
-
- this->a52_flags_map[A52_MONO] = A52_MONO;
- this->a52_flags_map[A52_STEREO] = A52_MONO;
- this->a52_flags_map[A52_3F] = A52_MONO;
- this->a52_flags_map[A52_2F1R] = A52_MONO;
- this->a52_flags_map[A52_3F1R] = A52_MONO;
- this->a52_flags_map[A52_2F2R] = A52_MONO;
- this->a52_flags_map[A52_3F2R] = A52_MONO;
- this->a52_flags_map[A52_DOLBY] = A52_MONO;
-
- this->ao_flags_map[A52_MONO] = AO_CAP_MODE_MONO;
- this->ao_flags_map[A52_STEREO] = AO_CAP_MODE_MONO;
- this->ao_flags_map[A52_3F] = AO_CAP_MODE_MONO;
- this->ao_flags_map[A52_2F1R] = AO_CAP_MODE_MONO;
- this->ao_flags_map[A52_3F1R] = AO_CAP_MODE_MONO;
- this->ao_flags_map[A52_2F2R] = AO_CAP_MODE_MONO;
- this->ao_flags_map[A52_3F2R] = AO_CAP_MODE_MONO;
- this->ao_flags_map[A52_DOLBY] = AO_CAP_MODE_MONO;
- }
- }
-
- /*
- for (i = 0; i<8; i++)
- this->a52_flags_map[i] |= A52_ADJUST_LEVEL;
- */
-#ifdef DEBUG_A52
- a52file = open ("test.a52", O_CREAT | O_WRONLY | O_TRUNC, 0644);
-#endif
- return &this->audio_decoder;
-}
-
-static char *get_identifier (audio_decoder_class_t *this) {
- lprintf ("get_identifier called\n");
- return "a/52dec";
-}
-
-static char *get_description (audio_decoder_class_t *this) {
- lprintf ("get_description called\n");
- return "liba52 based a52 audio decoder plugin";
-}
-
-static void dispose_class (audio_decoder_class_t *this) {
- lprintf ("dispose_class called\n");
- free (this);
-}
-
-static void *init_plugin (xine_t *xine, void *data) {
-
- a52dec_class_t *this;
- config_values_t *cfg;
-
- this = calloc(1, sizeof (a52dec_class_t));
-
- this->decoder_class.open_plugin = open_plugin;
- this->decoder_class.get_identifier = get_identifier;
- this->decoder_class.get_description = get_description;
- this->decoder_class.dispose = dispose_class;
-
- cfg = this->config = xine->config;
-
- this->a52_level = (float) cfg->register_range (cfg, "audio.a52.level", 100,
- 0, 200,
- _("A/52 volume"),
- _("With A/52 audio, you can modify the volume "
- "at the decoder level. This has the advantage "
- "of the audio being already decoded for the "
- "specified volume, so later operations like "
- "channel downmixing will work on an audio stream "
- "of the given volume."),
- 10, a52_level_change_cb, this) / 100.0;
- this->disable_dynrng_compress = !cfg->register_bool (cfg, "audio.a52.dynamic_range", 0,
- _("use A/52 dynamic range compression"),
- _("Dynamic range compression limits the dynamic "
- "range of the audio. This means making the loud "
- "sounds softer, and the soft sounds louder, so you can "
- "more easily listen to the audio in a noisy "
- "environment without disturbing anyone."),
- 0, dynrng_compress_change_cb, this);
- this->enable_surround_downmix = cfg->register_bool (cfg, "audio.a52.surround_downmix", 0,
- _("downmix audio to 2 channel surround stereo"),
- _("When you want to listen to multichannel surround "
- "sound, but you have only two speakers or a "
- "surround decoder or amplifier which does some "
- "sort of matrix surround decoding like prologic, "
- "you should enable this option so that the "
- "additional channels are mixed into the stereo "
- "signal."),
- 0, surround_downmix_change_cb, this);
- lprintf ("init_plugin called\n");
- return this;
-}
-
-static void a52_level_change_cb(void *this_gen, xine_cfg_entry_t *entry)
-{
- ((a52dec_class_t *)this_gen)->a52_level = entry->num_value / 100.0;
-}
-
-static void dynrng_compress_change_cb(void *this_gen, xine_cfg_entry_t *entry)
-{
- ((a52dec_class_t *)this_gen)->disable_dynrng_compress = !entry->num_value;
-}
-
-static void surround_downmix_change_cb(void *this_gen, xine_cfg_entry_t *entry)
-{
- ((a52dec_class_t *)this_gen)->enable_surround_downmix = entry->num_value;
-}
-
-
-static uint32_t audio_types[] = {
- BUF_AUDIO_A52,
- BUF_AUDIO_DNET,
- 0
- };
-
-static const decoder_info_t dec_info_audio = {
- audio_types, /* supported types */
- 5 /* priority */
-};
-
-const plugin_info_t xine_plugin_info[] EXPORTED = {
- /* type, API, "name", version, special_info, init_function */
- { PLUGIN_AUDIO_DECODER | PLUGIN_MUST_PRELOAD, 15, "a/52", XINE_VERSION_CODE, &dec_info_audio, init_plugin },
- { PLUGIN_NONE, 0, "", 0, NULL, NULL }
-};
generated by cgit v1.2.3 (git 2.25.1) at 2025-04-25 19:10:33 +0000