Snapshot 2bda038c163298531d47394bc2c09e1409c5d0db

Change-Id: If584e579464f28b97d50e51fc76ba654a5536c54

1 files changed, 141 insertions, 0 deletions

diff --git a/libAACenc/src/pnsparam.h b/libAACenc/src/pnsparam.h
new file mode 100644
index 0000000..53a2704
--- /dev/null
+++ b/libAACenc/src/pnsparam.h
@@ -0,0 +1,141 @@
+
+/* -----------------------------------------------------------------------------------------------------------
+Software License for The Fraunhofer FDK AAC Codec Library for Android
+
+© Copyright  1995 - 2012 Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
+  All rights reserved.
+
+ 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 (www.vialicensing.com) or through the respective patent owners
+individually for the purpose of encoding or decoding bit streams in products that are compliant with
+the ISO/IEC MPEG audio standards. Please note that most manufacturers of Android devices already license
+these patent claims through Via Licensing or directly from the patent owners, and therefore FDK AAC Codec
+software may already be covered under those patent licenses when it is used for those licensed purposes only.
+
+Commercially-licensed AAC software libraries, including floating-point versions with enhanced sound quality,
+are also available from Fraunhofer. Users are encouraged to check the Fraunhofer website for additional
+applications 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 satisfy the following conditions:
+
+You must retain the complete text of this software license in redistributions of the FDK AAC Codec or
+your modifications thereto in source code form.
+
+You must retain the complete text of this software license in the documentation and/or other materials
+provided with redistributions of the FDK AAC Codec or your modifications thereto in binary form.
+You must make available free of charge copies of the complete source code of the FDK AAC Codec and your
+modifications thereto to recipients of copies in binary form.
+
+The name of Fraunhofer may not be used to endorse or promote products derived from this library without
+prior written permission.
+
+You may not charge copyright license fees for anyone to use, copy or distribute the FDK AAC Codec
+software or your modifications thereto.
+
+Your modified versions of the FDK AAC Codec must carry prominent notices stating that you changed the software
+and the date of any change. For modified versions of the FDK AAC Codec, the term
+"Fraunhofer FDK AAC Codec Library for Android" must be replaced by the term
+"Third-Party Modified Version of the Fraunhofer FDK AAC Codec Library for Android."
+
+3.    NO PATENT LICENSE
+
+NO EXPRESS OR IMPLIED LICENSES TO ANY PATENT CLAIMS, including without limitation the patents of Fraunhofer,
+ARE GRANTED BY THIS SOFTWARE LICENSE. Fraunhofer provides no warranty of patent non-infringement with
+respect to this software.
+
+You may use this FDK AAC Codec software or modifications thereto only for purposes that are authorized
+by appropriate patent licenses.
+
+4.    DISCLAIMER
+
+This FDK AAC Codec software is provided by Fraunhofer on behalf of the copyright holders and contributors
+"AS IS" and WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, including but not limited to the implied warranties
+of merchantability and fitness for a particular purpose. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
+CONTRIBUTORS BE LIABLE for any direct, indirect, incidental, special, exemplary, or consequential damages,
+including but not limited to procurement of substitute goods or services; loss of use, data, or profits,
+or business interruption, however caused and on any theory of liability, whether in contract, strict
+liability, or tort (including negligence), arising in any way out of the use of this software, even if
+advised of the possibility of such damage.
+
+5.    CONTACT INFORMATION
+
+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 Audio Encoder **************************
+
+   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