FFPsyModel Struct Reference

codec-specific psychoacoustic model implementation More...

#include <psymodel.h>

Data Fields
const char *	name
int(*	init )(FFPsyContext *apc)
FFPsyWindowInfo(*	window )(FFPsyContext *ctx, const int16_t *audio, const int16_t *la, int channel, int prev_type)
	Suggest window sequence for channel.
void(*	analyze )(FFPsyContext *ctx, int channel, const float *coeffs, const FFPsyWindowInfo *wi)
	Perform psychoacoustic analysis and set band info (threshold, energy).
void(*	end )(FFPsyContext *apc)

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Detailed Description

codec-specific psychoacoustic model implementation

Definition at line 80 of file psymodel.h.

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Field Documentation

void(* FFPsyModel::analyze)(FFPsyContext *ctx, int channel, const float *coeffs, const FFPsyWindowInfo *wi)

Perform psychoacoustic analysis and set band info (threshold, energy).

Parameters:

	ctx	model context
	channel	audio channel number
	coeffs	pointer to the transformed coefficients
	wi	window information

Referenced by aac_encode_frame().

void(* FFPsyModel::end)(FFPsyContext *apc)

Referenced by ff_psy_end().

int(* FFPsyModel::init)(FFPsyContext *apc)

Referenced by ff_psy_init().

const char* FFPsyModel::name

Definition at line 81 of file psymodel.h.

FFPsyWindowInfo(* FFPsyModel::window)(FFPsyContext *ctx, const int16_t *audio, const int16_t *la, int channel, int prev_type)

Suggest window sequence for channel.

Parameters:

	ctx	model context
	audio	samples for the current frame
	la	lookahead samples (NULL when unavailable)
	channel	number of channel element to analyze
	prev_type	previous window type

Returns:

suggested window information in a structure

Referenced by aac_encode_frame().

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The documentation for this struct was generated from the following file:

• libavcodec/psymodel.h