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/*
** Copyright 2003-2010, VisualOn, Inc.
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
/*******************************************************************************
File: line_pe.h
Content: Perceptual entropie module structure and functions
*******************************************************************************/
#ifndef __LINE_PE_H
#define __LINE_PE_H
#include "psy_const.h"
#include "interface.h"
typedef struct {
Word16 sfbLdEnergy[MAX_GROUPED_SFB]; /* 4*log(sfbEnergy)/log(2) */
Word16 sfbNLines4[MAX_GROUPED_SFB]; /* 4*number of relevant lines in sfb */
Word16 sfbPe[MAX_GROUPED_SFB]; /* pe for each sfb */
Word16 sfbConstPart[MAX_GROUPED_SFB]; /* constant part for each sfb */
Word16 sfbNActiveLines[MAX_GROUPED_SFB]; /* number of active lines in sfb */
Word16 pe; /* sum of sfbPe */
Word16 constPart; /* sum of sfbConstPart */
Word16 nActiveLines; /* sum of sfbNActiveLines */
} PE_CHANNEL_DATA; /* size Word16: 303 */
typedef struct {
PE_CHANNEL_DATA peChannelData[MAX_CHANNELS];
Word16 pe;
Word16 constPart;
Word16 nActiveLines;
Word16 offset;
Word16 ahFlag[MAX_CHANNELS][MAX_GROUPED_SFB];
Word32 thrExp[MAX_CHANNELS][MAX_GROUPED_SFB];
Word32 sfbPeFactors[MAX_CHANNELS][MAX_GROUPED_SFB];
} PE_DATA; /* size Word16: 303 + 4 + 120 + 240 = 667 */
void prepareSfbPe(PE_DATA *peData,
PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
Word16 logSfbEnergy[MAX_CHANNELS][MAX_GROUPED_SFB],
Word16 sfbNRelevantLines[MAX_CHANNELS][MAX_GROUPED_SFB],
const Word16 nChannels,
const Word16 peOffset);
void calcSfbPe(PE_DATA *peData,
PSY_OUT_CHANNEL psyOutChannel[MAX_CHANNELS],
const Word16 nChannels);
#endif
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