mpegaudiodsp.h File Reference

#include <stddef.h>
#include <stdint.h>
#include "libavutil/common.h"

Go to the source code of this file.

Data Structures
struct	MPADSPContext

Macros
#define	MDCT_BUF_SIZE   FFALIGN(36, 2*4)
	For SSE implementation, MDCT_BUF_SIZE/2 should be 128-bit aligned. More...

Functions
void	ff_mpadsp_init (MPADSPContext *s)
void	ff_mpa_synth_filter_fixed (MPADSPContext *s, int32_t *synth_buf_ptr, int *synth_buf_offset, int32_t *window, int *dither_state, int16_t *samples, ptrdiff_t incr, int32_t *sb_samples)
void	ff_mpa_synth_filter_float (MPADSPContext *s, float *synth_buf_ptr, int *synth_buf_offset, float *window, int *dither_state, float *samples, ptrdiff_t incr, float *sb_samples)
void	ff_mpadsp_init_aarch64 (MPADSPContext *s)
void	ff_mpadsp_init_arm (MPADSPContext *s)
void	ff_mpadsp_init_ppc (MPADSPContext *s)
void	ff_mpadsp_init_x86 (MPADSPContext *s)
void	ff_mpadsp_init_mipsfpu (MPADSPContext *s)
void	ff_mpadsp_init_mipsdsp (MPADSPContext *s)
void	ff_mpa_synth_init_float (float *window)
void	ff_mpa_synth_init_fixed (int32_t *window)
void	ff_mpadsp_apply_window_float (float *synth_buf, float *window, int *dither_state, float *samples, ptrdiff_t incr)
void	ff_mpadsp_apply_window_fixed (int32_t *synth_buf, int32_t *window, int *dither_state, int16_t *samples, ptrdiff_t incr)
void	ff_imdct36_blocks_float (float *out, float *buf, float *in, int count, int switch_point, int block_type)
void	ff_imdct36_blocks_fixed (int *out, int *buf, int *in, int count, int switch_point, int block_type)
void	ff_init_mpadsp_tabs_float (void)
void	ff_init_mpadsp_tabs_fixed (void)

Variables
int32_t	ff_mpa_synth_window_fixed []
float	ff_mpa_synth_window_float []
const int32_t	ff_mpa_enwindow [257]
int	ff_mdct_win_fixed [8][MDCT_BUF_SIZE]
	Window for MDCT. More...
float	ff_mdct_win_float [8][MDCT_BUF_SIZE]

Macro Definition Documentation

MDCT_BUF_SIZE

#define MDCT_BUF_SIZE   FFALIGN(36, 2*4)

For SSE implementation, MDCT_BUF_SIZE/2 should be 128-bit aligned.

Definition at line 89 of file mpegaudiodsp.h.

Referenced by ff_init_mpadsp_tabs(), and imdct36().

Function Documentation

ff_mpadsp_init()

void ff_mpadsp_init

(

MPADSPContext *

s

)

Definition at line 31 of file mpegaudiodsp.c.

Referenced by decode_init(), mpc7_decode_init(), mpc8_decode_init(), and qdm2_decode_init().

ff_mpa_synth_filter_fixed()

void ff_mpa_synth_filter_fixed	(	MPADSPContext *	s,
		int32_t *	synth_buf_ptr,
		int *	synth_buf_offset,
		int32_t *	window,
		int *	dither_state,
		int16_t *	samples,
		ptrdiff_t	incr,
		int32_t *	sb_samples
	)

Referenced by mpc_synth().

ff_mpa_synth_filter_float()

void ff_mpa_synth_filter_float	(	MPADSPContext *	s,
		float *	synth_buf_ptr,
		int *	synth_buf_offset,
		float *	window,
		int *	dither_state,
		float *	samples,
		ptrdiff_t	incr,
		float *	sb_samples
	)

Referenced by qdm2_synthesis_filter().

ff_mpadsp_init_aarch64()

void ff_mpadsp_init_aarch64

(

MPADSPContext *

s

)

Definition at line 32 of file mpegaudiodsp_init.c.

Referenced by ff_mpadsp_init().

ff_mpadsp_init_arm()

void ff_mpadsp_init_arm

(

MPADSPContext *

s

)

Definition at line 31 of file mpegaudiodsp_init_arm.c.

Referenced by ff_mpadsp_init().

ff_mpadsp_init_ppc()

void ff_mpadsp_init_ppc

(

MPADSPContext *

s

)

Definition at line 133 of file mpegaudiodsp_altivec.c.

Referenced by ff_mpadsp_init().

ff_mpadsp_init_x86()

void ff_mpadsp_init_x86

(

MPADSPContext *

s

)

Definition at line 242 of file mpegaudiodsp.c.

Referenced by ff_mpadsp_init().

ff_mpadsp_init_mipsfpu()

void ff_mpadsp_init_mipsfpu

(

MPADSPContext *

s

)

Definition at line 1252 of file mpegaudiodsp_mips_float.c.

Referenced by ff_mpadsp_init().

ff_mpadsp_init_mipsdsp()

void ff_mpadsp_init_mipsdsp

(

MPADSPContext *

s

)

Definition at line 910 of file mpegaudiodsp_mips_fixed.c.

Referenced by ff_mpadsp_init().

ff_mpa_synth_init_float()

void ff_mpa_synth_init_float

(

float *

window

)

Referenced by qdm2_init_static_data().

ff_mpa_synth_init_fixed()

void ff_mpa_synth_init_fixed

(

int32_t *

window

)

Referenced by ff_mpc_init().

ff_mpadsp_apply_window_float()

void ff_mpadsp_apply_window_float	(	float *	synth_buf,
		float *	window,
		int *	dither_state,
		float *	samples,
		ptrdiff_t	incr
	)

Referenced by ff_mpadsp_init().

ff_mpadsp_apply_window_fixed()

void ff_mpadsp_apply_window_fixed	(	int32_t *	synth_buf,
		int32_t *	window,
		int *	dither_state,
		int16_t *	samples,
		ptrdiff_t	incr
	)

Referenced by ff_mpadsp_init().

ff_imdct36_blocks_float()

void ff_imdct36_blocks_float	(	float *	out,
		float *	buf,
		float *	in,
		int	count,
		int	switch_point,
		int	block_type
	)

Referenced by ff_mpadsp_init().

ff_imdct36_blocks_fixed()

void ff_imdct36_blocks_fixed	(	int *	out,
		int *	buf,
		int *	in,
		int	count,
		int	switch_point,
		int	block_type
	)

Referenced by ff_mpadsp_init().

ff_init_mpadsp_tabs_float()

void ff_init_mpadsp_tabs_float

(

void

)

Referenced by ff_mpadsp_init().

ff_init_mpadsp_tabs_fixed()

void ff_init_mpadsp_tabs_fixed

(

void

)

Referenced by ff_mpadsp_init().

Variable Documentation

ff_mpa_synth_window_fixed

int32_t ff_mpa_synth_window_fixed[]

Definition at line 78 of file mpegaudiodsp_template.c.

Referenced by ff_mpc_init(), and mpc_synth().

ff_mpa_synth_window_float

float ff_mpa_synth_window_float[]

Referenced by qdm2_init_static_data(), and qdm2_synthesis_filter().

ff_mpa_enwindow

const int32_t ff_mpa_enwindow[257]

Definition at line 22 of file mpegaudiodsp_data.c.

Referenced by ff_mpa_synth_init(), and MPA_encode_init().

ff_mdct_win_fixed

int ff_mdct_win_fixed[8][MDCT_BUF_SIZE]

Window for MDCT.

Actually only the elements in [0,17] and [MDCT_BUF_SIZE/2, MDCT_BUF_SIZE/2 + 17] are actually used. The rest is just to preserve alignment for SIMD implementations.

Definition at line 76 of file mpegaudiodsp_template.c.

ff_mdct_win_float

float ff_mdct_win_float[8][MDCT_BUF_SIZE]

Referenced by ff_mpadsp_init_x86().