ac3enc_float.c File Reference

floating-point AC-3 encoder. More...

#include "ac3enc.h"
#include "eac3enc.h"
#include "kbdwin.h"
#include "ac3enc_template.c"

Go to the source code of this file.

Macros

#define CONFIG_AC3ENC_FLOAT   1

Functions

av_cold void ff_ac3_float_mdct_end (AC3EncodeContext *s)
 Finalize MDCT and free allocated memory.
av_cold int ff_ac3_float_mdct_init (AC3EncodeContext *s)
 Initialize MDCT tables.
static void apply_window (DSPContext *dsp, float *output, const float *input, const float *window, unsigned int len)
static int normalize_samples (AC3EncodeContext *s)
static void scale_coefficients (AC3EncodeContext *s)
static void clip_coefficients (DSPContext *dsp, float *coef, unsigned int len)
static CoefType calc_cpl_coord (CoefSumType energy_ch, CoefSumType energy_cpl)

Detailed Description

floating-point AC-3 encoder.

Definition in file ac3enc_float.c.

Macro Definition Documentation

#define CONFIG_AC3ENC_FLOAT   1

Definition at line 29 of file ac3enc_float.c.

Function Documentation

static void apply_window ( DSPContext dsp,
float *  output,
const float *  input,
const float *  window,
unsigned int  len 
)
static

Definition at line 88 of file ac3enc_float.c.

static CoefType calc_cpl_coord ( CoefSumType  energy_ch,
CoefSumType  energy_cpl 
)
static

Definition at line 130 of file ac3enc_float.c.

static void clip_coefficients ( DSPContext dsp,
float *  coef,
unsigned int  len 
)
static

Definition at line 121 of file ac3enc_float.c.

av_cold void ff_ac3_float_mdct_end ( AC3EncodeContext s)

Finalize MDCT and free allocated memory.

Parameters
sAC-3 encoder private context

Definition at line 50 of file ac3enc_float.c.

Referenced by ff_ac3_encode_init().

av_cold int ff_ac3_float_mdct_init ( AC3EncodeContext s)

Initialize MDCT tables.

Parameters
sAC-3 encoder private context
Returns
0 on success, negative error code on failure

Definition at line 63 of file ac3enc_float.c.

Referenced by ff_ac3_encode_init().

static int normalize_samples ( AC3EncodeContext s)
static

Definition at line 99 of file ac3enc_float.c.

static void scale_coefficients ( AC3EncodeContext s)
static

Definition at line 108 of file ac3enc_float.c.