analysis.c File Reference

#include "kiss_fft.h"
#include "celt.h"
#include "modes.h"
#include "arch.h"
#include "quant_bands.h"
#include <stdio.h>
#include "analysis.h"
#include "mlp.h"
#include "stack_alloc.h"

Macros
#define	M_PI   3.141592653
#define	NB_TONAL_SKIP_BANDS   9
#define	cA   0.43157974f
#define	cB   0.67848403f
#define	cC   0.08595542f
#define	cE   ((float)M_PI/2)

Functions
void	tonality_analysis_init (TonalityAnalysisState *tonal)
void	tonality_analysis_reset (TonalityAnalysisState *tonal)
void	tonality_get_info (TonalityAnalysisState *tonal, AnalysisInfo *info_out, int len)
void	run_analysis (TonalityAnalysisState *analysis, const CELTMode *celt_mode, const void *analysis_pcm, int analysis_frame_size, int frame_size, int c1, int c2, int C, opus_int32 Fs, int lsb_depth, downmix_func downmix, AnalysisInfo *analysis_info)

Macro Definition Documentation

cA

#define cA   0.43157974f

cB

#define cB   0.67848403f

cC

#define cC   0.08595542f

cE

#define cE   ((float)M_PI/2)

M_PI

#define M_PI   3.141592653

NB_TONAL_SKIP_BANDS

#define NB_TONAL_SKIP_BANDS   9

Function Documentation

run_analysis()

void run_analysis	(	TonalityAnalysisState *	analysis,
		const CELTMode *	celt_mode,
		const void *	analysis_pcm,
		int	analysis_frame_size,
		int	frame_size,
		int	c1,
		int	c2,
		int	C,
		opus_int32	Fs,
		int	lsb_depth,
		downmix_func	downmix,
		AnalysisInfo *	analysis_info
	)

tonality_analysis_init()

void tonality_analysis_init

(

TonalityAnalysisState *

analysis

)

Initialize a TonalityAnalysisState struct.

This performs some possibly slow initialization steps which should not be repeated every analysis step. No allocated memory is retained by the state struct, so no cleanup call is required.

tonality_analysis_reset()

void tonality_analysis_reset

(

TonalityAnalysisState *

analysis

)

Reset a TonalityAnalysisState stuct.

Call this when there's a discontinuity in the data.

tonality_get_info()

void tonality_get_info	(	TonalityAnalysisState *	tonal,
		AnalysisInfo *	info_out,
		int	len
	)