#include <stdint.h>
#include "libavutil/mem_internal.h"
#include "libavutil/opt.h"
#include "libavutil/tx.h"
#include "ac3.h"
#include "ac3defs.h"
#include "ac3dsp.h"
#include "avcodec.h"
#include "codec_internal.h"
#include "mathops.h"
#include "me_cmp.h"
#include "audiodsp.h"
#include "libavutil/fixed_dsp.h"

Data Structures
struct	AC3EncOptions
	Encoding Options used by AVOption. More...

struct	AC3Block
	Data for a single audio block. More...

struct	AC3EncodeContext
	AC-3 encoder private context. More...

Macros
#define	AC3ENC_FLOAT 0

#define	MAC_COEF(d, a, b) MAC64(d,a,b)

#define	COEF_MIN -16777215

#define	COEF_MAX 16777215

#define	NEW_CPL_COORD_THRESHOLD 503317

#define	AC3ENC_OPT_NONE -1

#define	AC3ENC_OPT_AUTO -1

#define	AC3ENC_OPT_OFF 0

#define	AC3ENC_OPT_ON 1

#define	AC3ENC_OPT_NOT_INDICATED 0

#define	AC3ENC_OPT_MODE_ON 2

#define	AC3ENC_OPT_MODE_OFF 1

#define	AC3ENC_OPT_DSUREX_DPLIIZ 3

#define	AC3ENC_OPT_LARGE_ROOM 1

#define	AC3ENC_OPT_SMALL_ROOM 2

#define	AC3ENC_OPT_DOWNMIX_LTRT 1

#define	AC3ENC_OPT_DOWNMIX_LORO 2

#define	AC3ENC_OPT_DOWNMIX_DPLII 3

#define	AC3ENC_OPT_ADCONV_STANDARD 0

#define	AC3ENC_OPT_ADCONV_HDCD 1

Typedefs
typedef int32_t	SampleType

typedef int32_t	CoefType

typedef int64_t	CoefSumType

Functions
int	ff_ac3_encode_init (AVCodecContext *avctx)

int	ff_ac3_float_encode_init (AVCodecContext *avctx)

int	ff_ac3_encode_close (AVCodecContext *avctx)
	Finalize encoding and free any memory allocated by the encoder. More...

void	ff_ac3_compute_coupling_strategy (AC3EncodeContext *s)
	Set the initial coupling strategy parameters prior to coupling analysis. More...

int	ff_ac3_encode_frame (AVCodecContext avctx, AVPacket avpkt, const AVFrame frame, int got_packet_ptr)

Variables
const AVChannelLayout	ff_ac3_ch_layouts [19]
	List of supported channel layouts. More...

const AVOption	ff_ac3_enc_options []

const AVClass	ff_ac3enc_class

const FFCodecDefault	ff_ac3_enc_defaults []

Detailed Description

AC-3 encoder & E-AC-3 encoder common header

Definition in file ac3enc.h.

Macro Definition Documentation

◆ AC3ENC_FLOAT

#define AC3ENC_FLOAT 0

Definition at line 47 of file ac3enc.h.

◆ MAC_COEF

#define MAC_COEF	(	d,
		a,
		b
	)	MAC64(d,a,b)

Definition at line 61 of file ac3enc.h.

◆ COEF_MIN

#define COEF_MIN -16777215

Definition at line 62 of file ac3enc.h.

◆ COEF_MAX

#define COEF_MAX 16777215

Definition at line 63 of file ac3enc.h.

◆ NEW_CPL_COORD_THRESHOLD

#define NEW_CPL_COORD_THRESHOLD 503317

Definition at line 64 of file ac3enc.h.

◆ AC3ENC_OPT_NONE

#define AC3ENC_OPT_NONE -1

Definition at line 71 of file ac3enc.h.

◆ AC3ENC_OPT_AUTO

#define AC3ENC_OPT_AUTO -1

Definition at line 72 of file ac3enc.h.

◆ AC3ENC_OPT_OFF

#define AC3ENC_OPT_OFF 0

Definition at line 73 of file ac3enc.h.

◆ AC3ENC_OPT_ON

#define AC3ENC_OPT_ON 1

Definition at line 74 of file ac3enc.h.

◆ AC3ENC_OPT_NOT_INDICATED

#define AC3ENC_OPT_NOT_INDICATED 0

Definition at line 75 of file ac3enc.h.

◆ AC3ENC_OPT_MODE_ON

#define AC3ENC_OPT_MODE_ON 2

Definition at line 76 of file ac3enc.h.

◆ AC3ENC_OPT_MODE_OFF

#define AC3ENC_OPT_MODE_OFF 1

Definition at line 77 of file ac3enc.h.

◆ AC3ENC_OPT_DSUREX_DPLIIZ

#define AC3ENC_OPT_DSUREX_DPLIIZ 3

Definition at line 78 of file ac3enc.h.

◆ AC3ENC_OPT_LARGE_ROOM

#define AC3ENC_OPT_LARGE_ROOM 1

Definition at line 81 of file ac3enc.h.

◆ AC3ENC_OPT_SMALL_ROOM

#define AC3ENC_OPT_SMALL_ROOM 2

Definition at line 82 of file ac3enc.h.

◆ AC3ENC_OPT_DOWNMIX_LTRT

#define AC3ENC_OPT_DOWNMIX_LTRT 1

Definition at line 83 of file ac3enc.h.

◆ AC3ENC_OPT_DOWNMIX_LORO

#define AC3ENC_OPT_DOWNMIX_LORO 2

Definition at line 84 of file ac3enc.h.

◆ AC3ENC_OPT_DOWNMIX_DPLII

#define AC3ENC_OPT_DOWNMIX_DPLII 3

Definition at line 85 of file ac3enc.h.

◆ AC3ENC_OPT_ADCONV_STANDARD

#define AC3ENC_OPT_ADCONV_STANDARD 0

Definition at line 86 of file ac3enc.h.

◆ AC3ENC_OPT_ADCONV_HDCD

#define AC3ENC_OPT_ADCONV_HDCD 1

Definition at line 87 of file ac3enc.h.

Typedef Documentation

◆ SampleType

typedef int32_t SampleType

Definition at line 65 of file ac3enc.h.

◆ CoefType

typedef int32_t CoefType

Definition at line 66 of file ac3enc.h.

◆ CoefSumType

typedef int64_t CoefSumType

Definition at line 67 of file ac3enc.h.

Function Documentation

◆ ff_ac3_encode_init()

int ff_ac3_encode_init ( AVCodecContext * avctx )

Definition at line 2476 of file ac3enc.c.

Referenced by ac3_fixed_encode_init(), and ff_ac3_float_encode_init().

◆ ff_ac3_float_encode_init()

int ff_ac3_float_encode_init ( AVCodecContext * avctx )

Definition at line 97 of file ac3enc_float.c.

Referenced by eac3_encode_init().

◆ ff_ac3_encode_close()

int ff_ac3_encode_close ( AVCodecContext * avctx )

Finalize encoding and free any memory allocated by the encoder.

Parameters

avctx Codec context

Definition at line 2158 of file ac3enc.c.

◆ ff_ac3_compute_coupling_strategy()

void ff_ac3_compute_coupling_strategy ( AC3EncodeContext * s )

Set the initial coupling strategy parameters prior to coupling analysis.

Parameters

s	AC-3 encoder private context

Definition at line 511 of file ac3enc.c.

Referenced by encode_frame().

◆ ff_ac3_encode_frame()

int ff_ac3_encode_frame	(	AVCodecContext *	avctx,
		AVPacket *	avpkt,
		const AVFrame *	frame,
		int *	got_packet_ptr
	)

Definition at line 1985 of file ac3enc.c.

Variable Documentation

◆ ff_ac3_ch_layouts

const AVChannelLayout ff_ac3_ch_layouts[19]

List of supported channel layouts.

Definition at line 156 of file ac3enc.c.

◆ ff_ac3_enc_options

const AVOption ff_ac3_enc_options[]

Definition at line 84 of file ac3enc.c.

◆ ff_ac3enc_class

const AVClass ff_ac3enc_class

Definition at line 134 of file ac3enc.c.

◆ ff_ac3_enc_defaults

const FFCodecDefault ff_ac3_enc_defaults[]

Definition at line 141 of file ac3enc.c.

Data Structures

Macros

Typedefs

Functions

Variables