libavcodec/mpegaudiodsp.h File Reference

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

Go to the source code of this file.

Data Structures
struct	MPADSPContext
Defines
#define	MDCT_BUF_SIZE   FFALIGN(36, 2*4)
	For SSE implementation, MDCT_BUF_SIZE/2 should be 128-bit aligned.
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, int 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, int incr, float *sb_samples)
void	ff_mpadsp_init_arm (MPADSPContext *s)
void	ff_mpadsp_init_mmx (MPADSPContext *s)
void	ff_mpadsp_init_altivec (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, int incr)
void	ff_mpadsp_apply_window_fixed (int32_t *synth_buf, int32_t *window, int *dither_state, int16_t *samples, int 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 []
int	ff_mdct_win_fixed [8][MDCT_BUF_SIZE]
float	ff_mdct_win_float [8][MDCT_BUF_SIZE]

---

Define Documentation

#define MDCT_BUF_SIZE   FFALIGN(36, 2*4)

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

Definition at line 80 of file mpegaudiodsp.h.

Referenced by ff_init_mpadsp_tabs_TMPL(), and imdct36().

---

Function Documentation

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

Referenced by ff_mpadsp_init().

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

Referenced by ff_mpadsp_init().

void ff_init_mpadsp_tabs_fixed

(

void

)

Referenced by ff_mpadsp_init().

void ff_init_mpadsp_tabs_float

(

void

)

Referenced by ff_mpadsp_init().

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,
		int	incr,
		int32_t *	sb_samples
	)

Referenced by mpc_synth().

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

Referenced by qdm2_synthesis_filter().

void ff_mpa_synth_init_fixed

(

int32_t *

window

)

Referenced by ff_mpc_init().

void ff_mpa_synth_init_float

(

float *

window

)

Referenced by qdm2_init().

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

Referenced by ff_mpadsp_init().

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

Referenced by ff_mpadsp_init().

void ff_mpadsp_init

(

MPADSPContext *

s

)

Definition at line 26 of file mpegaudiodsp.c.

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

void ff_mpadsp_init_altivec

(

MPADSPContext *

s

)

Definition at line 126 of file mpegaudiodec_altivec.c.

Referenced by ff_mpadsp_init().

void ff_mpadsp_init_arm

(

MPADSPContext *

s

)

Definition at line 28 of file mpegaudiodsp_init_arm.c.

Referenced by ff_mpadsp_init().

void ff_mpadsp_init_mmx

(

MPADSPContext *

s

)

Definition at line 207 of file mpegaudiodec_mmx.c.

Referenced by ff_mpadsp_init().

---

Variable Documentation

int ff_mdct_win_fixed[8][MDCT_BUF_SIZE]

float ff_mdct_win_float[8][MDCT_BUF_SIZE]

Referenced by ff_mpadsp_init_mmx().

int32_t ff_mpa_synth_window_fixed[]

Referenced by ff_mpc_init(), and mpc_synth().

float ff_mpa_synth_window_float[]

Referenced by qdm2_init(), and qdm2_synthesis_filter().