mirror of https://github.com/mpv-player/mpv
447 lines
8.8 KiB
C
447 lines
8.8 KiB
C
/*
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** FAAD2 - Freeware Advanced Audio (AAC) Decoder including SBR decoding
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** Copyright (C) 2003-2004 M. Bakker, Ahead Software AG, http://www.nero.com
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**
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** This program is free software; you can redistribute it and/or modify
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** it under the terms of the GNU General Public License as published by
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** the Free Software Foundation; either version 2 of the License, or
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** (at your option) any later version.
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**
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** This program is distributed in the hope that it will be useful,
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** but WITHOUT ANY WARRANTY; without even the implied warranty of
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** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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** GNU General Public License for more details.
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**
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** You should have received a copy of the GNU General Public License
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** along with this program; if not, write to the Free Software
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** Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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**
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** Any non-GPL usage of this software or parts of this software is strictly
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** forbidden.
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**
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** Commercial non-GPL licensing of this software is possible.
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** For more info contact Ahead Software through Mpeg4AAClicense@nero.com.
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**
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** $Id$
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**/
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#ifndef __COMMON_H__
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#define __COMMON_H__
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Allow build on cygwin*/
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#if defined(__CYGWIN__)
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#define __STRICT_ANSI__
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#endif
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#define INLINE __inline
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#if defined(_WIN32) && !defined(_WIN32_WCE)
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#define ALIGN __declspec(align(16))
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#else
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#define ALIGN
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#endif
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#ifndef max
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#define max(a, b) (((a) > (b)) ? (a) : (b))
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#endif
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#ifndef min
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#define min(a, b) (((a) < (b)) ? (a) : (b))
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#endif
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/* COMPILE TIME DEFINITIONS */
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/* use double precision */
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/* #define USE_DOUBLE_PRECISION */
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/* use fixed point reals */
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//#define FIXED_POINT
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#ifdef _WIN32_WCE
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#define FIXED_POINT
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#endif
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#define ERROR_RESILIENCE
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/* Allow decoding of MAIN profile AAC */
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#define MAIN_DEC
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/* Allow decoding of SSR profile AAC */
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//#define SSR_DEC
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/* Allow decoding of LTP profile AAC */
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#define LTP_DEC
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/* Allow decoding of LD profile AAC */
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#define LD_DEC
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/* Allow decoding of scalable profiles */
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//#define SCALABLE_DEC
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/* Allow decoding of Digital Radio Mondiale (DRM) */
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//#define DRM
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//#define DRM_PS
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/* LD can't do without LTP */
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#ifdef LD_DEC
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#ifndef ERROR_RESILIENCE
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#define ERROR_RESILIENCE
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#endif
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#ifndef LTP_DEC
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#define LTP_DEC
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#endif
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#endif
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#define ALLOW_SMALL_FRAMELENGTH
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// Define LC_ONLY_DECODER if you want a pure AAC LC decoder (independant of SBR_DEC)
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//#define LC_ONLY_DECODER
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#ifdef LC_ONLY_DECODER
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#undef LTP_DEC
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#undef MAIN_DEC
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#undef SSR_DEC
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#undef DRM
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#undef ALLOW_SMALL_FRAMELENGTH
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#undef ERROR_RESILIENCE
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#endif
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#define SBR_DEC
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//#define SBR_LOW_POWER
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//#define PS_DEC
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/* FIXED POINT: No MAIN decoding, no SBR decoding */
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#ifdef FIXED_POINT
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# ifdef MAIN_DEC
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# undef MAIN_DEC
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# endif
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//# ifndef SBR_LOW_POWER
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//# define SBR_LOW_POWER
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//# endif
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# ifdef SBR_DEC
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# undef SBR_DEC
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# endif
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#endif // FIXED_POINT
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#ifdef DRM
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# ifndef SCALABLE_DEC
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# define SCALABLE_DEC
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# endif
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#endif
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#if ((defined(_WIN32) && !defined(_WIN32_WCE)) /* || ((__GNUC__ >= 3) && defined(__i386__)) */ )
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#ifndef FIXED_POINT
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/* includes <xmmintrin.h> to enable SSE intrinsics */
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//#define USE_SSE
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#endif
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#endif
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#ifdef FIXED_POINT
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#define SBR_DIV(A, B) (((int64_t)A << REAL_BITS)/B)
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#else
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#define SBR_DIV(A, B) ((A)/(B))
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#endif
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#ifndef SBR_LOW_POWER
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#define qmf_t complex_t
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#define QMF_RE(A) RE(A)
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#define QMF_IM(A) IM(A)
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#else
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#define qmf_t real_t
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#define QMF_RE(A) (A)
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#define QMF_IM(A)
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#endif
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/* END COMPILE TIME DEFINITIONS */
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#if defined(_WIN32)
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#if 0
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typedef unsigned __int64 uint64_t;
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typedef unsigned __int32 uint32_t;
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typedef unsigned __int16 uint16_t;
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typedef unsigned __int8 uint8_t;
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typedef __int64 int64_t;
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typedef __int32 int32_t;
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typedef __int16 int16_t;
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typedef __int8 int8_t;
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#else
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#include <inttypes.h>
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#endif
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typedef float float32_t;
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#else
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/* Define if needed */
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/* #undef HAVE_FLOAT32_T */
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/* Define if you have the <inttypes.h> header file. */
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#define HAVE_INTTYPES_H 1
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/* Define if you have the `memcpy' function. */
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#define HAVE_MEMCPY 1
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/* Define if you have the <stdint.h> header file. */
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#define HAVE_STDINT_H 1
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/* Define if you have the `strchr' function. */
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#define HAVE_STRCHR 1
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/* Define if you have the ANSI C header files. */
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#define STDC_HEADERS 1
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#ifdef HAVE_CONFIG_H
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# include "../config.h"
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#endif
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#include <stdio.h>
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#if HAVE_SYS_TYPES_H
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# include <sys/types.h>
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#endif
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#if HAVE_SYS_STAT_H
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# include <sys/stat.h>
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#endif
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#if STDC_HEADERS
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# include <stdlib.h>
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# include <stddef.h>
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#else
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# if HAVE_STDLIB_H
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# include <stdlib.h>
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# endif
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#endif
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#if HAVE_STRING_H
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# if !STDC_HEADERS && HAVE_MEMORY_H
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# include <memory.h>
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# endif
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# include <string.h>
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#endif
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#if HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#if HAVE_INTTYPES_H
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# include <inttypes.h>
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#else
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# if HAVE_STDINT_H
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# include <stdint.h>
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# else
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/* we need these... */
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typedef unsigned long long uint64_t;
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typedef unsigned long uint32_t;
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typedef unsigned short uint16_t;
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typedef unsigned char uint8_t;
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typedef long long int64_t;
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typedef long int32_t;
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typedef short int16_t;
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typedef char int8_t;
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# endif
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#endif
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#if HAVE_UNISTD_H
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# include <unistd.h>
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#endif
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#ifndef HAVE_FLOAT32_T
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typedef float float32_t;
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#endif
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#if STDC_HEADERS
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# include <string.h>
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#else
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# if !HAVE_STRCHR
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# define strchr index
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# define strrchr rindex
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# endif
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char *strchr(), *strrchr();
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# if !HAVE_MEMCPY
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# define memcpy(d, s, n) bcopy((s), (d), (n))
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# define memmove(d, s, n) bcopy((s), (d), (n))
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# endif
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#endif
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#endif
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#ifdef WORDS_BIGENDIAN
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#define ARCH_IS_BIG_ENDIAN
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#endif
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/* FIXED_POINT doesn't work with MAIN and SSR yet */
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#ifdef FIXED_POINT
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#undef MAIN_DEC
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#undef SSR_DEC
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#endif
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#if defined(FIXED_POINT)
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#include "fixed.h"
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#elif defined(USE_DOUBLE_PRECISION)
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typedef double real_t;
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#include <math.h>
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#define MUL_R(A,B) ((A)*(B))
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#define MUL_C(A,B) ((A)*(B))
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#define MUL_F(A,B) ((A)*(B))
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/* Complex multiplication */
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static INLINE void ComplexMult(real_t *y1, real_t *y2,
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real_t x1, real_t x2, real_t c1, real_t c2)
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{
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*y1 = MUL_F(x1, c1) + MUL_F(x2, c2);
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*y2 = MUL_F(x2, c1) - MUL_F(x1, c2);
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}
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#define REAL_CONST(A) ((real_t)(A))
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#define COEF_CONST(A) ((real_t)(A))
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#define FRAC_CONST(A) ((real_t)(A)) /* pure fractional part */
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#else /* Normal floating point operation */
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typedef float real_t;
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#ifdef USE_SSE
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# include <xmmintrin.h>
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#endif
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#define MUL_R(A,B) ((A)*(B))
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#define MUL_C(A,B) ((A)*(B))
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#define MUL_F(A,B) ((A)*(B))
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#define REAL_CONST(A) ((real_t)(A))
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#define COEF_CONST(A) ((real_t)(A))
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#define FRAC_CONST(A) ((real_t)(A)) /* pure fractional part */
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/* Complex multiplication */
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static INLINE void ComplexMult(real_t *y1, real_t *y2,
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real_t x1, real_t x2, real_t c1, real_t c2)
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{
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*y1 = MUL_F(x1, c1) + MUL_F(x2, c2);
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*y2 = MUL_F(x2, c1) - MUL_F(x1, c2);
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}
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#if defined(_WIN32) && !defined(__MINGW32__)
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#define HAS_LRINTF
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static INLINE int lrintf(float f)
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{
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int i;
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__asm
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{
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fld f
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fistp i
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}
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return i;
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}
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#elif (defined(__i386__) && defined(__GNUC__)) && !defined(__MINGW32__)
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#define HAS_LRINTF
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// from http://www.stereopsis.com/FPU.html
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static INLINE int lrintf(float f)
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{
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int i;
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__asm__ __volatile__ (
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"flds %1 \n\t"
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"fistpl %0 \n\t"
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: "=m" (i)
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: "m" (f));
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return i;
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}
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#endif
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#ifdef __ICL /* only Intel C compiler has fmath ??? */
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#include <mathf.h>
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#define sin sinf
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#define cos cosf
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#define log logf
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#define floor floorf
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#define ceil ceilf
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#define sqrt sqrtf
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#else
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#ifdef HAVE_LRINTF
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# define HAS_LRINTF
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# define _ISOC9X_SOURCE 1
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# define _ISOC99_SOURCE 1
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# define __USE_ISOC9X 1
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# define __USE_ISOC99 1
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#endif
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#include <math.h>
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#ifdef HAVE_SINF
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# define sin sinf
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#error
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#endif
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#ifdef HAVE_COSF
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# define cos cosf
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#endif
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#ifdef HAVE_LOGF
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# define log logf
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#endif
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#ifdef HAVE_EXPF
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# define exp expf
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#endif
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#ifdef HAVE_FLOORF
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# define floor floorf
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#endif
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#ifdef HAVE_CEILF
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# define ceil ceilf
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#endif
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#ifdef HAVE_SQRTF
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# define sqrt sqrtf
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#endif
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#endif
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#endif
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#ifndef HAS_LRINTF
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/* standard cast */
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#define lrintf(f) ((int32_t)(f))
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#endif
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typedef real_t complex_t[2];
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#define RE(A) A[0]
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#define IM(A) A[1]
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/* common functions */
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uint8_t cpu_has_sse(void);
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uint32_t random_int(void);
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uint8_t get_sr_index(const uint32_t samplerate);
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uint8_t max_pred_sfb(const uint8_t sr_index);
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uint8_t max_tns_sfb(const uint8_t sr_index, const uint8_t object_type,
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const uint8_t is_short);
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uint32_t get_sample_rate(const uint8_t sr_index);
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int8_t can_decode_ot(const uint8_t object_type);
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void *faad_malloc(int32_t size);
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void faad_free(void *b);
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//#define PROFILE
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#ifdef PROFILE
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static int64_t faad_get_ts()
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{
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__asm
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{
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rdtsc
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}
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}
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#endif
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#ifndef M_PI
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#define M_PI 3.14159265358979323846
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#endif
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#ifndef M_PI_2 /* PI/2 */
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#define M_PI_2 1.57079632679489661923
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif
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