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