fdk-aac/libSACenc/src/sacenc_onsetdetect.h

/* -----------------------------------------------------------------------------
Software License for The Fraunhofer FDK AAC Codec Library for Android

© Copyright  1995 - 2018 Fraunhofer-Gesellschaft zur Förderung der angewandten
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 1.    INTRODUCTION
The Fraunhofer FDK AAC Codec Library for Android ("FDK AAC Codec") is software
that implements the MPEG Advanced Audio Coding ("AAC") encoding and decoding
scheme for digital audio. This FDK AAC Codec software is intended to be used on
a wide variety of Android devices.

AAC's HE-AAC and HE-AAC v2 versions are regarded as today's most efficient
general perceptual audio codecs. AAC-ELD is considered the best-performing
full-bandwidth communications codec by independent studies and is widely
deployed. AAC has been standardized by ISO and IEC as part of the MPEG
specifications.

Patent licenses for necessary patent claims for the FDK AAC Codec (including
those of Fraunhofer) may be obtained through Via Licensing
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already be covered under those patent licenses when it is used for those
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Commercially-licensed AAC software libraries, including floating-point versions
with enhanced sound quality, are also available from Fraunhofer. Users are
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information and documentation.

2.    COPYRIGHT LICENSE

Redistribution and use in source and binary forms, with or without modification,
are permitted without payment of copyright license fees provided that you
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This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright
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Fraunhofer Institute for Integrated Circuits IIS
Attention: Audio and Multimedia Departments - FDK AAC LL
Am Wolfsmantel 33
91058 Erlangen, Germany

www.iis.fraunhofer.de/amm
amm-info@iis.fraunhofer.de
----------------------------------------------------------------------------- */

/*********************** MPEG surround encoder library *************************

   Author(s):   Max Neuendorf

   Description: Encoder Library Interface
                Determine TES flags

*******************************************************************************/

#ifndef SACENC_ONSETDETECT_H
#define SACENC_ONSETDETECT_H

/**************************************************************************/ /**
   \file
   Description of file contents
 ******************************************************************************/

/* Includes ******************************************************************/
#include "common_fix.h"
#include "FDK_matrixCalloc.h"
#include "sacenc_lib.h"
#include "sacenc_bitstream.h" /* for def. of MAX_NUM_PARAMS */

/* Defines *******************************************************************/
#define MAX_NUM_TRANS (MAX_NUM_PARAMS / 2)

/* Data Types ****************************************************************/
typedef struct T_ONSET_DETECT_CONFIG {
  INT maxTimeSlots;

  /* calc transien detection in ]lowerBoundOnsetDetection;
   * upperBoundOnsetDetection[ */
  INT lowerBoundOnsetDetection;
  INT upperBoundOnsetDetection;

} ONSET_DETECT_CONFIG;

typedef struct ONSET_DETECT *HANDLE_ONSET_DETECT;

/* Constants *****************************************************************/

/* Function / Class Declarations *********************************************/
FDK_SACENC_ERROR fdk_sacenc_onsetDetect_Open(HANDLE_ONSET_DETECT *phOnset,
                                             const UINT maxTimeSlots);

FDK_SACENC_ERROR fdk_sacenc_onsetDetect_Init(
    HANDLE_ONSET_DETECT hOnset,
    const ONSET_DETECT_CONFIG *const pOnsetDetectConfig, const UINT initFlags);

FDK_SACENC_ERROR fdk_sacenc_onsetDetect_Close(HANDLE_ONSET_DETECT *phOnset);

FDK_SACENC_ERROR fdk_sacenc_onsetDetect_Update(HANDLE_ONSET_DETECT hOnset,
                                               const INT timeSlots);

FDK_SACENC_ERROR fdk_sacenc_onsetDetect_Apply(
    HANDLE_ONSET_DETECT hOnset, const INT nTimeSlots, const INT nHybridBands,
    FIXP_DPK *const *const ppHybridData__FDK, const INT hybridDataScale,
    const INT prevPos, INT pTransientPos[MAX_NUM_TRANS]);

#endif /* SACENC_ONSETDETECT_H */