mpegaudiodec_fixed.c File Reference

#include "config.h"
#include "libavutil/samplefmt.h"
#include "mpegaudio.h"
#include "mpegaudiodec_template.c"

Go to the source code of this file.

Macros
#define	USE_FLOATS   0
#define	SHR(a, b)   (((int)(a))>>(b))
#define	FIXR_OLD(a)   ((int)((a) * FRAC_ONE + 0.5))
#define	FIXR(a)   ((int)((a) * FRAC_ONE + 0.5))
#define	FIXHR(a)   ((int)((a) * (1LL<<32) + 0.5))
#define	MULH3(x, y, s)   MULH((s)*(x), y)
#define	MULLx(x, y, s)   MULL((int)(x),(y),s)
#define	RENAME(a)   a ## _fixed
#define	OUT_FMT   AV_SAMPLE_FMT_S16
#define	OUT_FMT_P   AV_SAMPLE_FMT_S16P

Variables
static const int32_t	is_table [2][16]
static const int32_t	csa_table [8][4]

Macro Definition Documentation

USE_FLOATS

#define USE_FLOATS   0

Definition at line 24 of file mpegaudiodec_fixed.c.

SHR

#define SHR	(		a,
			b
	)		(((int)(a))>>(b))

Definition at line 28 of file mpegaudiodec_fixed.c.

FIXR_OLD

#define FIXR_OLD

(

a

)

((int)((a) * FRAC_ONE + 0.5))

Definition at line 30 of file mpegaudiodec_fixed.c.

FIXR

#define FIXR

(

a

)

((int)((a) * FRAC_ONE + 0.5))

Definition at line 31 of file mpegaudiodec_fixed.c.

FIXHR

#define FIXHR

(

a

)

((int)((a) * (1LL<<32) + 0.5))

Definition at line 32 of file mpegaudiodec_fixed.c.

MULH3

#define MULH3	(		x,
			y,
			s
	)		MULH((s)*(x), y)

Definition at line 33 of file mpegaudiodec_fixed.c.

MULLx

#define MULLx	(		x,
			y,
			s
	)		MULL((int)(x),(y),s)

Definition at line 34 of file mpegaudiodec_fixed.c.

RENAME

#define RENAME

(

a

)

a ## _fixed

Definition at line 35 of file mpegaudiodec_fixed.c.

OUT_FMT

#define OUT_FMT   AV_SAMPLE_FMT_S16

Definition at line 36 of file mpegaudiodec_fixed.c.

OUT_FMT_P

#define OUT_FMT_P   AV_SAMPLE_FMT_S16P

Definition at line 37 of file mpegaudiodec_fixed.c.

Variable Documentation

is_table

const int32_t is_table[2][16]

static

Initial value:

= {
    { 0x000000, 0x1B0CB1, 0x2ED9EC, 0x400000, 0x512614, 0x64F34F, 0x800000 },
    { 0x800000, 0x64F34F, 0x512614, 0x400000, 0x2ED9EC, 0x1B0CB1, 0x000000 }
}

Definition at line 41 of file mpegaudiodec_fixed.c.

Referenced by compute_stereo().

csa_table

const int32_t csa_table[8][4]

static

Initial value:

= {
    { 0x36E129F8, 0xDF128056, 0x15F3AA4E, 0xA831565E },
    { 0x386E75F2, 0xE1CF24A5, 0x1A3D9A97, 0xA960AEB3 },
    { 0x3CC6B73A, 0xEBF19FA6, 0x28B856E0, 0xAF2AE86C },
    { 0x3EEEA054, 0xF45B88BC, 0x334A2910, 0xB56CE868 },
    { 0x3FB6905C, 0xF9F27F18, 0x39A90F74, 0xBA3BEEBC },
    { 0x3FF23F20, 0xFD60D1E4, 0x3D531104, 0xBD6E92C4 },
    { 0x3FFE5932, 0xFF175EE4, 0x3F15B816, 0xBF1905B2 },
    { 0x3FFFE34A, 0xFFC3612F, 0x3FC34479, 0xBFC37DE5 }
}

Definition at line 48 of file mpegaudiodec_fixed.c.