fixed_dsp.c File Reference

#include "common.h"
#include "fixed_dsp.h"

Go to the source code of this file.

Functions
static void	vector_fmul_add_c (int *dst, const int *src0, const int *src1, const int *src2, int len)
static void	vector_fmul_reverse_c (int *dst, const int *src0, const int *src1, int len)
static void	vector_fmul_window_scaled_c (int16_t *dst, const int32_t *src0, const int32_t *src1, const int32_t *win, int len, uint8_t bits)
static void	vector_fmul_window_c (int32_t *dst, const int32_t *src0, const int32_t *src1, const int32_t *win, int len)
static void	vector_fmul_c (int *dst, const int *src0, const int *src1, int len)
static int	scalarproduct_fixed_c (const int *v1, const int *v2, int len)
static void	butterflies_fixed_c (int *av_restrict v1s, int *av_restrict v2, int len)
AVFixedDSPContext *	avpriv_alloc_fixed_dsp (int bit_exact)
	Allocate and initialize a fixed DSP context. More...

Function Documentation

vector_fmul_add_c()

static void vector_fmul_add_c ( int *  dst, const int *  src0, const int *  src1, const int *  src2, int  len  )

static

Definition at line 51 of file fixed_dsp.c.

Referenced by avpriv_alloc_fixed_dsp().

vector_fmul_reverse_c()

static void vector_fmul_reverse_c ( int *  dst, const int *  src0, const int *  src1, int  len  )

static

Definition at line 61 of file fixed_dsp.c.

Referenced by avpriv_alloc_fixed_dsp().

vector_fmul_window_scaled_c()

static void vector_fmul_window_scaled_c ( int16_t *  dst, const int32_t *  src0, const int32_t *  src1, const int32_t *  win, int  len, uint8_t  bits  )

static

Definition at line 73 of file fixed_dsp.c.

Referenced by avpriv_alloc_fixed_dsp().

vector_fmul_window_c()

static void vector_fmul_window_c ( int32_t *  dst, const int32_t *  src0, const int32_t *  src1, const int32_t *  win, int  len  )

static

Definition at line 94 of file fixed_dsp.c.

Referenced by avpriv_alloc_fixed_dsp().

vector_fmul_c()

static void vector_fmul_c ( int *  dst, const int *  src0, const int *  src1, int  len  )

static

Definition at line 114 of file fixed_dsp.c.

Referenced by avpriv_alloc_fixed_dsp().

scalarproduct_fixed_c()

static int scalarproduct_fixed_c ( const int *  v1, const int *  v2, int  len  )

static

p is initialized with 0x40000000 so that the proper rounding will occur at the end

Definition at line 125 of file fixed_dsp.c.

Referenced by avpriv_alloc_fixed_dsp().

butterflies_fixed_c()

static void butterflies_fixed_c ( int *av_restrict  v1s, int *av_restrict  v2, int  len  )

static

Definition at line 138 of file fixed_dsp.c.

Referenced by avpriv_alloc_fixed_dsp().

avpriv_alloc_fixed_dsp()

AVFixedDSPContext* avpriv_alloc_fixed_dsp

(

int

strict

)

Allocate and initialize a fixed DSP context.

note: should be freed with a av_free call when no longer needed.

Parameters

strict

setting to non-zero avoids using functions which may not be IEEE-754 compliant

Definition at line 150 of file fixed_dsp.c.

Referenced by aac_decode_init(), ac3_decode_init(), ac3_fixed_mdct_init(), checkasm_check_fixed_dsp(), and ff_dca_core_init().