ac3dsp_init.c File Reference

#include "libavutil/attributes.h"
#include "libavutil/x86/asm.h"
#include "libavutil/x86/cpu.h"
#include "libavcodec/ac3dsp.h"

Go to the source code of this file.

Macros
#define	DOWNMIX_FUNC_OPT(ch, opt)
#define	DOWNMIX_FUNCS(opt)
#define	SET_DOWNMIX(ch, suf, SUF)
#define	SET_DOWNMIX_ALL(suf, SUF)

Functions
void	ff_ac3_exponent_min_sse2 (uint8_t *exp, int num_reuse_blocks, int nb_coefs)
void	ff_float_to_fixed24_sse2 (int32_t *dst, const float *src, size_t len)
void	ff_float_to_fixed24_avx (int32_t *dst, const float *src, size_t len)
int	ff_ac3_compute_mantissa_size_sse2 (uint16_t mant_cnt[6][16])
void	ff_ac3_extract_exponents_sse2 (uint8_t *exp, int32_t *coef, int nb_coefs)
void	ff_ac3_extract_exponents_ssse3 (uint8_t *exp, int32_t *coef, int nb_coefs)
av_cold void	ff_ac3dsp_init_x86 (AC3DSPContext *c)
void	ff_ac3dsp_set_downmix_x86 (AC3DSPContext *c)

Macro Definition Documentation

DOWNMIX_FUNC_OPT

#define DOWNMIX_FUNC_OPT	(		ch,
			opt
	)

Value:

void ff_ac3_downmix_ ## ch ## _to_1_ ## opt(float **samples,            \
                                            float **matrix, int len);   \
void ff_ac3_downmix_ ## ch ## _to_2_ ## opt(float **samples,            \
                                            float **matrix, int len);

Definition at line 57 of file ac3dsp_init.c.

DOWNMIX_FUNCS

#define DOWNMIX_FUNCS

(

opt

)

Value:

    DOWNMIX_FUNC_OPT(3, opt) \
    DOWNMIX_FUNC_OPT(4, opt) \
    DOWNMIX_FUNC_OPT(5, opt) \
    DOWNMIX_FUNC_OPT(6, opt)

Definition at line 63 of file ac3dsp_init.c.

SET_DOWNMIX

#define SET_DOWNMIX	(		ch,
			suf,
			SUF
	)

Value:

    if (ch == c->in_channels) {                                         \
        if (EXTERNAL_ ## SUF (cpu_flags)) {                             \
            if (c->out_channels == 1)                                   \
                c->downmix = ff_ac3_downmix_ ## ch ## _to_1_ ## suf;    \
            else                                                        \
                c->downmix = ff_ac3_downmix_ ## ch ## _to_2_ ## suf;    \
        }                                                               \
    }

SET_DOWNMIX_ALL

#define SET_DOWNMIX_ALL	(		suf,
			SUF
	)

Value:

    SET_DOWNMIX(3, suf, SUF)                        \
    SET_DOWNMIX(4, suf, SUF)                        \
    SET_DOWNMIX(5, suf, SUF)                        \
    SET_DOWNMIX(6, suf, SUF)

Function Documentation

ff_ac3_exponent_min_sse2()

void ff_ac3_exponent_min_sse2	(	uint8_t *	exp,
		int	num_reuse_blocks,
		int	nb_coefs
	)

Referenced by ff_ac3dsp_init_x86().

ff_float_to_fixed24_sse2()

void ff_float_to_fixed24_sse2	(	int32_t *	dst,
		const float *	src,
		size_t	len
	)

Referenced by ff_ac3dsp_init_x86().

ff_float_to_fixed24_avx()

void ff_float_to_fixed24_avx	(	int32_t *	dst,
		const float *	src,
		size_t	len
	)

Referenced by ff_ac3dsp_init_x86().

ff_ac3_compute_mantissa_size_sse2()

int ff_ac3_compute_mantissa_size_sse2

(

uint16_t

mant_cnt[6][16]

)

Referenced by ff_ac3dsp_init_x86().

ff_ac3_extract_exponents_sse2()

void ff_ac3_extract_exponents_sse2	(	uint8_t *	exp,
		int32_t *	coef,
		int	nb_coefs
	)

Referenced by ff_ac3dsp_init_x86().

ff_ac3_extract_exponents_ssse3()

void ff_ac3_extract_exponents_ssse3	(	uint8_t *	exp,
		int32_t *	coef,
		int	nb_coefs
	)

Referenced by ff_ac3dsp_init_x86().

ff_ac3dsp_init_x86()

av_cold void ff_ac3dsp_init_x86

(

AC3DSPContext *

c

)

Definition at line 37 of file ac3dsp_init.c.

Referenced by ff_ac3dsp_init().

ff_ac3dsp_set_downmix_x86()

void ff_ac3dsp_set_downmix_x86

(

AC3DSPContext *

c

)

Definition at line 73 of file ac3dsp_init.c.

Referenced by ff_ac3dsp_downmix().