celt.h File Reference

Contains all the functions for encoding and decoding audio. More...

#include "opus_types.h"
#include "opus_defines.h"
#include "opus_custom.h"
#include "entenc.h"
#include "entdec.h"
#include "arch.h"

Go to the source code of this file.

Classes
struct	AnalysisInfo

Macros
#define	CELTEncoder   OpusCustomEncoder
#define	CELTDecoder   OpusCustomDecoder
#define	CELTMode   OpusCustomMode
#define	__celt_check_mode_ptr_ptr(ptr)   ((ptr) + ((ptr) - (const CELTMode**)(ptr)))
#define	__celt_check_analysis_ptr(ptr)   ((ptr) + ((ptr) - (const AnalysisInfo*)(ptr)))
#define	OPUS_FRAMESIZE_VARIABLE   5010
#define	CELT_SET_PREDICTION_REQUEST   10002
#define	CELT_SET_PREDICTION(x)   CELT_SET_PREDICTION_REQUEST, __opus_check_int(x)
#define	CELT_SET_INPUT_CLIPPING_REQUEST   10004
#define	CELT_SET_INPUT_CLIPPING(x)   CELT_SET_INPUT_CLIPPING_REQUEST, __opus_check_int(x)
#define	CELT_GET_AND_CLEAR_ERROR_REQUEST   10007
#define	CELT_GET_AND_CLEAR_ERROR(x)   CELT_GET_AND_CLEAR_ERROR_REQUEST, __opus_check_int_ptr(x)
#define	CELT_SET_CHANNELS_REQUEST   10008
#define	CELT_SET_CHANNELS(x)   CELT_SET_CHANNELS_REQUEST, __opus_check_int(x)
#define	CELT_SET_START_BAND_REQUEST   10010
#define	CELT_SET_START_BAND(x)   CELT_SET_START_BAND_REQUEST, __opus_check_int(x)
#define	CELT_SET_END_BAND_REQUEST   10012
#define	CELT_SET_END_BAND(x)   CELT_SET_END_BAND_REQUEST, __opus_check_int(x)
#define	CELT_GET_MODE_REQUEST   10015
#define	CELT_GET_MODE(x)   CELT_GET_MODE_REQUEST, __celt_check_mode_ptr_ptr(x)
#define	CELT_SET_SIGNALLING_REQUEST   10016
#define	CELT_SET_SIGNALLING(x)   CELT_SET_SIGNALLING_REQUEST, __opus_check_int(x)
#define	CELT_SET_TONALITY_REQUEST   10018
#define	CELT_SET_TONALITY(x)   CELT_SET_TONALITY_REQUEST, __opus_check_int(x)
#define	CELT_SET_TONALITY_SLOPE_REQUEST   10020
#define	CELT_SET_TONALITY_SLOPE(x)   CELT_SET_TONALITY_SLOPE_REQUEST, __opus_check_int(x)
#define	CELT_SET_ANALYSIS_REQUEST   10022
#define	CELT_SET_ANALYSIS(x)   CELT_SET_ANALYSIS_REQUEST, __celt_check_analysis_ptr(x)
#define	OPUS_SET_LFE_REQUEST   10024
#define	OPUS_SET_LFE(x)   OPUS_SET_LFE_REQUEST, __opus_check_int(x)
#define	OPUS_SET_ENERGY_MASK_REQUEST   10026
#define	OPUS_SET_ENERGY_MASK(x)   OPUS_SET_ENERGY_MASK_REQUEST, __opus_check_val16_ptr(x)
#define	celt_encoder_ctl   opus_custom_encoder_ctl
#define	celt_decoder_ctl   opus_custom_decoder_ctl
#define	OPUS_CUSTOM_NOSTATIC   static OPUS_INLINE
#define	COMBFILTER_MAXPERIOD   1024
#define	COMBFILTER_MINPERIOD   15
#define	comb_filter_const(y, x, T, N, g10, g11, g12, arch)   ((void)(arch),comb_filter_const_c(y, x, T, N, g10, g11, g12))

Functions
int	celt_encoder_get_size (int channels)
int	celt_encode_with_ec (OpusCustomEncoder *OPUS_RESTRICT st, const opus_val16 *pcm, int frame_size, unsigned char *compressed, int nbCompressedBytes, ec_enc *enc)
int	celt_encoder_init (CELTEncoder *st, opus_int32 sampling_rate, int channels, int arch)
int	celt_decoder_get_size (int channels)
int	celt_decoder_init (CELTDecoder *st, opus_int32 sampling_rate, int channels)
int	celt_decode_with_ec (OpusCustomDecoder *OPUS_RESTRICT st, const unsigned char *data, int len, opus_val16 *OPUS_RESTRICT pcm, int frame_size, ec_dec *dec, int accum)
int	resampling_factor (opus_int32 rate)
void	celt_preemphasis (const opus_val16 *OPUS_RESTRICT pcmp, celt_sig *OPUS_RESTRICT inp, int N, int CC, int upsample, const opus_val16 *coef, celt_sig *mem, int clip)
void	comb_filter (opus_val32 *y, opus_val32 *x, int T0, int T1, int N, opus_val16 g0, opus_val16 g1, int tapset0, int tapset1, const opus_val16 *window, int overlap, int arch)
void	init_caps (const CELTMode *m, int *cap, int LM, int C)

Variables
const signed char	tf_select_table [4][8]

Detailed Description

Contains all the functions for encoding and decoding audio.

Macro Definition Documentation

__celt_check_analysis_ptr

#define __celt_check_analysis_ptr

(

ptr

)

((ptr) + ((ptr) - (const AnalysisInfo*)(ptr)))

__celt_check_mode_ptr_ptr

#define __celt_check_mode_ptr_ptr

(

ptr

)

((ptr) + ((ptr) - (const CELTMode**)(ptr)))

celt_decoder_ctl

#define celt_decoder_ctl   opus_custom_decoder_ctl

celt_encoder_ctl

#define celt_encoder_ctl   opus_custom_encoder_ctl

CELT_GET_AND_CLEAR_ERROR

#define CELT_GET_AND_CLEAR_ERROR

(

x

)

CELT_GET_AND_CLEAR_ERROR_REQUEST, __opus_check_int_ptr(x)

CELT_GET_AND_CLEAR_ERROR_REQUEST

#define CELT_GET_AND_CLEAR_ERROR_REQUEST   10007

CELT_GET_MODE

#define CELT_GET_MODE

(

x

)

CELT_GET_MODE_REQUEST, __celt_check_mode_ptr_ptr(x)

Get the CELTMode used by an encoder or decoder

CELT_GET_MODE_REQUEST

#define CELT_GET_MODE_REQUEST   10015

CELT_SET_ANALYSIS

#define CELT_SET_ANALYSIS

(

x

)

CELT_SET_ANALYSIS_REQUEST, __celt_check_analysis_ptr(x)

CELT_SET_ANALYSIS_REQUEST

#define CELT_SET_ANALYSIS_REQUEST   10022

CELT_SET_CHANNELS

#define CELT_SET_CHANNELS

(

x

)

CELT_SET_CHANNELS_REQUEST, __opus_check_int(x)

CELT_SET_CHANNELS_REQUEST

#define CELT_SET_CHANNELS_REQUEST   10008

CELT_SET_END_BAND

#define CELT_SET_END_BAND

(

x

)

CELT_SET_END_BAND_REQUEST, __opus_check_int(x)

CELT_SET_END_BAND_REQUEST

#define CELT_SET_END_BAND_REQUEST   10012

CELT_SET_INPUT_CLIPPING

#define CELT_SET_INPUT_CLIPPING

(

x

)

CELT_SET_INPUT_CLIPPING_REQUEST, __opus_check_int(x)

CELT_SET_INPUT_CLIPPING_REQUEST

#define CELT_SET_INPUT_CLIPPING_REQUEST   10004

CELT_SET_PREDICTION

#define CELT_SET_PREDICTION

(

x

)

CELT_SET_PREDICTION_REQUEST, __opus_check_int(x)

Controls the use of interframe prediction. 0=Independent frames 1=Short term interframe prediction allowed 2=Long term prediction allowed

CELT_SET_PREDICTION_REQUEST

#define CELT_SET_PREDICTION_REQUEST   10002

CELT_SET_SIGNALLING

#define CELT_SET_SIGNALLING

(

x

)

CELT_SET_SIGNALLING_REQUEST, __opus_check_int(x)

CELT_SET_SIGNALLING_REQUEST

#define CELT_SET_SIGNALLING_REQUEST   10016

CELT_SET_START_BAND

#define CELT_SET_START_BAND

(

x

)

CELT_SET_START_BAND_REQUEST, __opus_check_int(x)

CELT_SET_START_BAND_REQUEST

#define CELT_SET_START_BAND_REQUEST   10010

CELT_SET_TONALITY

#define CELT_SET_TONALITY

(

x

)

CELT_SET_TONALITY_REQUEST, __opus_check_int(x)

CELT_SET_TONALITY_REQUEST

#define CELT_SET_TONALITY_REQUEST   10018

CELT_SET_TONALITY_SLOPE

#define CELT_SET_TONALITY_SLOPE

(

x

)

CELT_SET_TONALITY_SLOPE_REQUEST, __opus_check_int(x)

CELT_SET_TONALITY_SLOPE_REQUEST

#define CELT_SET_TONALITY_SLOPE_REQUEST   10020

CELTDecoder

#define CELTDecoder   OpusCustomDecoder

CELTEncoder

#define CELTEncoder   OpusCustomEncoder

CELTMode

#define CELTMode   OpusCustomMode

comb_filter_const

#define comb_filter_const	(		y,
			x,
			T,
			N,
			g10,
			g11,
			g12,
			arch
	)		((void)(arch),comb_filter_const_c(y, x, T, N, g10, g11, g12))

COMBFILTER_MAXPERIOD

#define COMBFILTER_MAXPERIOD   1024

COMBFILTER_MINPERIOD

#define COMBFILTER_MINPERIOD   15

OPUS_CUSTOM_NOSTATIC

#define OPUS_CUSTOM_NOSTATIC   static OPUS_INLINE

OPUS_FRAMESIZE_VARIABLE

#define OPUS_FRAMESIZE_VARIABLE   5010

Optimize the frame size dynamically

OPUS_SET_ENERGY_MASK

#define OPUS_SET_ENERGY_MASK

(

x

)

OPUS_SET_ENERGY_MASK_REQUEST, __opus_check_val16_ptr(x)

OPUS_SET_ENERGY_MASK_REQUEST

#define OPUS_SET_ENERGY_MASK_REQUEST   10026

OPUS_SET_LFE

#define OPUS_SET_LFE

(

x

)

OPUS_SET_LFE_REQUEST, __opus_check_int(x)

OPUS_SET_LFE_REQUEST

#define OPUS_SET_LFE_REQUEST   10024

Function Documentation

celt_decode_with_ec()

int celt_decode_with_ec	(	OpusCustomDecoder *OPUS_RESTRICT	st,
		const unsigned char *	data,
		int	len,
		opus_val16 *OPUS_RESTRICT	pcm,
		int	frame_size,
		ec_dec *	dec,
		int	accum
	)

celt_decoder_get_size()

int celt_decoder_get_size

(

int

channels

)

celt_decoder_init()

int celt_decoder_init	(	CELTDecoder *	st,
		opus_int32	sampling_rate,
		int	channels
	)

celt_encode_with_ec()

int celt_encode_with_ec	(	OpusCustomEncoder *OPUS_RESTRICT	st,
		const opus_val16 *	pcm,
		int	frame_size,
		unsigned char *	compressed,
		int	nbCompressedBytes,
		ec_enc *	enc
	)

celt_encoder_get_size()

int celt_encoder_get_size

(

int

channels

)

celt_encoder_init()

int celt_encoder_init	(	CELTEncoder *	st,
		opus_int32	sampling_rate,
		int	channels,
		int	arch
	)

celt_preemphasis()

void celt_preemphasis	(	const opus_val16 *OPUS_RESTRICT	pcmp,
		celt_sig *OPUS_RESTRICT	inp,
		int	N,
		int	CC,
		int	upsample,
		const opus_val16 *	coef,
		celt_sig *	mem,
		int	clip
	)

comb_filter()

void comb_filter	(	opus_val32 *	y,
		opus_val32 *	x,
		int	T0,
		int	T1,
		int	N,
		opus_val16	g0,
		opus_val16	g1,
		int	tapset0,
		int	tapset1,
		const opus_val16 *	window,
		int	overlap,
		int	arch
	)

init_caps()

void init_caps	(	const CELTMode *	m,
		int *	cap,
		int	LM,
		int	C
	)

resampling_factor()

int resampling_factor

(

opus_int32

rate

)

Variable Documentation

tf_select_table

const signed char tf_select_table[4][8]