#include <stdint.h>
#include "avcodec.h"
#include "opusdsp.h"
#include "opus_rc.h"
#include "libavutil/float_dsp.h"
#include "libavutil/libm.h"
#include "libavutil/mem_internal.h"
#include "libavutil/tx.h"

Data Structures
struct	CeltBlock

struct	CeltFrame

Macros
#define	CELT_SHORT_BLOCKSIZE 120

#define	CELT_OVERLAP CELT_SHORT_BLOCKSIZE

#define	CELT_MAX_LOG_BLOCKS 3

#define	CELT_MAX_FRAME_SIZE (CELT_SHORT_BLOCKSIZE * (1 << CELT_MAX_LOG_BLOCKS))

#define	CELT_MAX_BANDS 21

#define	CELT_VECTORS 11

#define	CELT_ALLOC_STEPS 6

#define	CELT_FINE_OFFSET 21

#define	CELT_MAX_FINE_BITS 8

#define	CELT_NORM_SCALE 16384

#define	CELT_QTHETA_OFFSET 4

#define	CELT_QTHETA_OFFSET_TWOPHASE 16

#define	CELT_POSTFILTER_MINPERIOD 15

#define	CELT_ENERGY_SILENCE (-28.0f)

Enumerations
enum	CeltSpread { CELT_SPREAD_NONE, CELT_SPREAD_LIGHT, CELT_SPREAD_NORMAL, CELT_SPREAD_AGGRESSIVE }

enum	CeltBlockSize { CELT_BLOCK_120, CELT_BLOCK_240, CELT_BLOCK_480, CELT_BLOCK_960, CELT_BLOCK_NB }

Functions
static av_always_inline uint32_t	celt_rng (CeltFrame *f)

static av_always_inline void	celt_renormalize_vector (float *X, int N, float gain)

int	ff_celt_init (AVCodecContext avctx, CeltFrame *f, int output_channels, int apply_phase_inv)

void	ff_celt_free (CeltFrame **f)

void	ff_celt_flush (CeltFrame *f)

int	ff_celt_decode_frame (CeltFrame f, OpusRangeCoder rc, float **output, int coded_channels, int frame_size, int startband, int endband)

void	ff_celt_quant_bands (CeltFrame f, OpusRangeCoder rc)

void	ff_celt_bitalloc (CeltFrame f, OpusRangeCoder rc, int encode)

Macro Definition Documentation

◆ CELT_SHORT_BLOCKSIZE

#define CELT_SHORT_BLOCKSIZE 120

Definition at line 38 of file opus_celt.h.

◆ CELT_OVERLAP

#define CELT_OVERLAP CELT_SHORT_BLOCKSIZE

Definition at line 39 of file opus_celt.h.

◆ CELT_MAX_LOG_BLOCKS

#define CELT_MAX_LOG_BLOCKS 3

Definition at line 40 of file opus_celt.h.

◆ CELT_MAX_FRAME_SIZE

#define CELT_MAX_FRAME_SIZE (CELT_SHORT_BLOCKSIZE * (1 << CELT_MAX_LOG_BLOCKS))

Definition at line 41 of file opus_celt.h.

◆ CELT_MAX_BANDS

#define CELT_MAX_BANDS 21

Definition at line 42 of file opus_celt.h.

◆ CELT_VECTORS

#define CELT_VECTORS 11

Definition at line 44 of file opus_celt.h.

◆ CELT_ALLOC_STEPS

#define CELT_ALLOC_STEPS 6

Definition at line 45 of file opus_celt.h.

◆ CELT_FINE_OFFSET

#define CELT_FINE_OFFSET 21

Definition at line 46 of file opus_celt.h.

◆ CELT_MAX_FINE_BITS

#define CELT_MAX_FINE_BITS 8

Definition at line 47 of file opus_celt.h.

◆ CELT_NORM_SCALE

#define CELT_NORM_SCALE 16384

Definition at line 48 of file opus_celt.h.

◆ CELT_QTHETA_OFFSET

#define CELT_QTHETA_OFFSET 4

Definition at line 49 of file opus_celt.h.

◆ CELT_QTHETA_OFFSET_TWOPHASE

#define CELT_QTHETA_OFFSET_TWOPHASE 16

Definition at line 50 of file opus_celt.h.

◆ CELT_POSTFILTER_MINPERIOD

#define CELT_POSTFILTER_MINPERIOD 15

Definition at line 51 of file opus_celt.h.

◆ CELT_ENERGY_SILENCE

#define CELT_ENERGY_SILENCE (-28.0f)

Definition at line 52 of file opus_celt.h.

Enumeration Type Documentation

◆ CeltSpread

enum CeltSpread

Enumerator
CELT_SPREAD_NONE
CELT_SPREAD_LIGHT
CELT_SPREAD_NORMAL
CELT_SPREAD_AGGRESSIVE

Definition at line 54 of file opus_celt.h.

◆ CeltBlockSize

enum CeltBlockSize

Enumerator
CELT_BLOCK_120
CELT_BLOCK_240
CELT_BLOCK_480
CELT_BLOCK_960
CELT_BLOCK_NB

Definition at line 61 of file opus_celt.h.

Function Documentation

◆ celt_rng()

static av_always_inline uint32_t celt_rng ( CeltFrame * f )

static

Definition at line 149 of file opus_celt.h.

Referenced by process_anticollapse(), and quant_band_template().

◆ celt_renormalize_vector()

static av_always_inline void celt_renormalize_vector	(	float *	X,
		int	N,
		float	gain
	)

static

Definition at line 155 of file opus_celt.h.

Referenced by process_anticollapse(), and quant_band_template().

◆ ff_celt_init()

int ff_celt_init	(	AVCodecContext *	avctx,
		CeltFrame **	f,
		int	output_channels,
		int	apply_phase_inv
	)

Definition at line 542 of file opusdec_celt.c.

Referenced by opus_decode_init().

◆ ff_celt_free()

void ff_celt_free ( CeltFrame ** f )

Definition at line 525 of file opusdec_celt.c.

Referenced by ff_celt_init(), and opus_decode_close().

◆ ff_celt_flush()

void ff_celt_flush ( CeltFrame * f )

Definition at line 494 of file opusdec_celt.c.

Referenced by ff_celt_init(), opus_decode_flush(), and opus_decode_frame().

◆ ff_celt_decode_frame()

int ff_celt_decode_frame	(	CeltFrame *	f,
		OpusRangeCoder *	rc,
		float **	output,
		int	coded_channels,
		int	frame_size,
		int	startband,
		int	endband
	)

Definition at line 322 of file opusdec_celt.c.

Referenced by opus_decode_frame(), and opus_decode_redundancy().

◆ ff_celt_quant_bands()

void ff_celt_quant_bands	(	CeltFrame *	f,
		OpusRangeCoder *	rc
	)

Definition at line 28 of file opus_celt.c.

Referenced by celt_encode_frame(), and ff_celt_decode_frame().

◆ ff_celt_bitalloc()

void ff_celt_bitalloc	(	CeltFrame *	f,
		OpusRangeCoder *	rc,
		int	encode
	)

Definition at line 137 of file opus_celt.c.

Referenced by bands_dist(), celt_encode_frame(), and ff_celt_decode_frame().

Data Structures

Macros

Enumerations

Functions