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 float *audio, const float *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) for a group of channels.
void(*	end )(FFPsyContext *apc)

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Detailed Description

codec-specific psychoacoustic model implementation

Definition at line 99 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) for a group of channels.

Parameters:

	ctx	model context
	channel	channel number of the first channel in the group to perform analysis on
	coeffs	array of pointers to the transformed coefficients
	wi	window information for the channels in the group

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 100 of file psymodel.h.

FFPsyWindowInfo(* FFPsyModel::window)(FFPsyContext *ctx, const float *audio, const float *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