floating-point AC-3 encoder. More...
#include "ac3enc.h"
#include "eac3enc.h"
#include "kbdwin.h"
#include "ac3enc_opts_template.c"
#include "ac3enc_template.c"
Go to the source code of this file.
Defines | |
#define | CONFIG_AC3ENC_FLOAT 1 |
#define | AC3ENC_TYPE AC3ENC_TYPE_AC3 |
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 | sum_square_butterfly (AC3EncodeContext *s, float sum[4], const float *coef0, const float *coef1, int len) |
static void | clip_coefficients (DSPContext *dsp, float *coef, unsigned int len) |
static CoefType | calc_cpl_coord (CoefSumType energy_ch, CoefSumType energy_cpl) |
Variables | |
static const AVClass | ac3enc_class |
AVCodec | ff_ac3_encoder |
floating-point AC-3 encoder.
Definition in file ac3enc_float.c.
#define AC3ENC_TYPE AC3ENC_TYPE_AC3 |
Definition at line 36 of file ac3enc_float.c.
#define CONFIG_AC3ENC_FLOAT 1 |
Definition at line 29 of file ac3enc_float.c.
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 136 of file ac3enc_float.c.
static void clip_coefficients | ( | DSPContext * | dsp, | |
float * | coef, | |||
unsigned int | len | |||
) | [static] |
Definition at line 127 of file ac3enc_float.c.
av_cold void ff_ac3_float_mdct_end | ( | AC3EncodeContext * | s | ) |
Finalize MDCT and free allocated memory.
s | AC-3 encoder private context |
Definition at line 50 of file ac3enc_float.c.
av_cold int ff_ac3_float_mdct_init | ( | AC3EncodeContext * | s | ) |
Initialize MDCT tables.
s | AC-3 encoder private context |
Definition at line 63 of file ac3enc_float.c.
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.
static void sum_square_butterfly | ( | AC3EncodeContext * | s, | |
float | sum[4], | |||
const float * | coef0, | |||
const float * | coef1, | |||
int | len | |||
) | [static] |
Definition at line 117 of file ac3enc_float.c.
const AVClass ac3enc_class [static] |
{ "AC-3 Encoder", av_default_item_name, ac3_options, LIBAVUTIL_VERSION_INT }
Definition at line 38 of file ac3enc_float.c.
{ .name = "ac3", .type = AVMEDIA_TYPE_AUDIO, .id = CODEC_ID_AC3, .priv_data_size = sizeof(AC3EncodeContext), .init = ff_ac3_encode_init, .encode = ff_ac3_float_encode_frame, .close = ff_ac3_encode_close, .sample_fmts = (const enum AVSampleFormat[]){AV_SAMPLE_FMT_FLT,AV_SAMPLE_FMT_NONE}, .long_name = NULL_IF_CONFIG_SMALL("ATSC A/52A (AC-3)"), .priv_class = &ac3enc_class, .channel_layouts = ff_ac3_channel_layouts, }
Definition at line 146 of file ac3enc_float.c.