Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 78 insertions, 0 deletions

diff --git a/libAACenc/src/pnsparam.h b/libAACenc/src/pnsparam.h
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+/******************************** 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