From 9bf37cc9712506b2483650c82d3c41152337ef7e Mon Sep 17 00:00:00 2001 From: Dave Burke Date: Tue, 17 Apr 2012 09:51:45 -0700 Subject: Fraunhofer AAC codec. License boilerplate update to follow. Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5 --- libAACenc/src/pnsparam.h | 78 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 libAACenc/src/pnsparam.h (limited to 'libAACenc/src/pnsparam.h') diff --git a/libAACenc/src/pnsparam.h b/libAACenc/src/pnsparam.h new file mode 100644 index 0000000..7d947c6 --- /dev/null +++ b/libAACenc/src/pnsparam.h @@ -0,0 +1,78 @@ +/******************************** MPEG Audio Encoder ************************** + + (C) Copyright Fraunhofer IIS (2001) + All Rights Reserved + + Please be advised that this software and/or program delivery is + Confidential Information of Fraunhofer and subject to and covered by the + + Fraunhofer IIS Software Evaluation Agreement + between Google Inc. and Fraunhofer + effective and in full force since March 1, 2012. + + You may use this software and/or program only under the terms and + conditions described in the above mentioned Fraunhofer IIS Software + Evaluation Agreement. Any other and/or further use requires a separate agreement. + + + This software and/or program is protected by copyright law and international + treaties. Any reproduction or distribution of this software and/or program, + or any portion of it, may result in severe civil and criminal penalties, and + will be prosecuted to the maximum extent possible under law. + + Initial author: M. Lohwasser + contents/description: PNS parameters depending on bitrate and bandwidth + +******************************************************************************/ + +#ifndef __PNSPARAM_H +#define __PNSPARAM_H + +#include "aacenc.h" +#include "common_fix.h" +#include "psy_const.h" + +#define NUM_PNSINFOTAB 4 +#define PNS_TABLE_ERROR -1 + +/* detection algorithm flags */ +#define USE_POWER_DISTRIBUTION (1<<0) +#define USE_PSYCH_TONALITY (1<<1) +#define USE_TNS_GAIN_THR (1<<2) +#define USE_TNS_PNS (1<<3) +#define JUST_LONG_WINDOW (1<<4) +/* additional algorithm flags */ +#define IS_LOW_COMLEXITY (1<<5) + +typedef struct +{ + /* PNS start band */ + short startSfb; + + /* detection algorithm flags */ + USHORT detectionAlgorithmFlags; + + /* Parameters for detection */ + FIXP_DBL refPower; + FIXP_DBL refTonality; + INT tnsGainThreshold; + INT tnsPNSGainThreshold; + INT minSfbWidth; + FIXP_SGL powDistPSDcurve[MAX_GROUPED_SFB]; + FIXP_SGL gapFillThr; +} NOISEPARAMS; + +int FDKaacEnc_lookUpPnsUse (int bitRate, int sampleRate, int numChan, const int isLC); + +/****** Definition of prototypes ******/ + +AAC_ENCODER_ERROR FDKaacEnc_GetPnsParam(NOISEPARAMS *np, + INT bitRate, + INT sampleRate, + INT sfbCnt, + const INT *sfbOffset, + INT *usePns, + INT numChan, + const INT isLC); + +#endif -- cgit v1.2.3