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Diffstat (limited to 'liba52/a52_internal.h')
| -rw-r--r-- | liba52/a52_internal.h | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/liba52/a52_internal.h b/liba52/a52_internal.h deleted file mode 100644 index 1f6d205931..0000000000 --- a/liba52/a52_internal.h +++ /dev/null @@ -1,140 +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. - * - * Modified for use with MPlayer, changes contained in liba52_changes.diff. - * detailed changelog at http://svn.mplayerhq.hu/mplayer/trunk/ - * $Id$ - * - * 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; - 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) - -#if ARCH_X86_64 -# define REG_a "rax" -# define REG_d "rdx" -# define REG_S "rsi" -# define REG_D "rdi" -# define REG_BP "rbp" -#else -# define REG_a "eax" -# define REG_d "edx" -# define REG_S "esi" -# define REG_D "edi" -# define REG_BP "ebp" -#endif - -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); -void downmix_accel_init(uint32_t mm_accel); -int a52_downmix_coeff (sample_t * coeff, int acmod, int output, sample_t level, - sample_t clev, sample_t slev); -extern void (*a52_downmix) (sample_t * samples, int acmod, int output, sample_t bias, - sample_t clev, sample_t slev); -extern 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); -extern void (*a52_imdct_512) (sample_t * data, sample_t * delay, sample_t bias); -void imdct_do_512 (sample_t * data, sample_t * delay, sample_t bias); |