Fraunhofer AAC codec.

License boilerplate update to follow.

Change-Id: I2810460c11a58b6d148d84673cc031f3685e79b5

1 files changed, 203 insertions, 0 deletions

diff --git a/libSBRenc/src/bit_sbr.h b/libSBRenc/src/bit_sbr.h
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+/****************************************************************************
+
+                       (C) copyright Fraunhofer-IIS (2004)
+                               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.
+
+ $Id$
+
+*******************************************************************************/
+/*!
+  \file
+  \brief  SBR bit writing $Revision: 36867 $
+*/
+#ifndef __BIT_SBR_H
+#define __BIT_SBR_H
+
+#include "sbr_def.h"
+#include "cmondata.h"
+#include "fram_gen.h"
+
+struct SBR_ENV_DATA;
+
+struct SBR_BITSTREAM_DATA
+{
+  INT TotalBits;
+  INT PayloadBits;
+  INT FillBits;
+  INT HeaderActive;
+  INT NrSendHeaderData;            /**< input from commandline */
+  INT CountSendHeaderData;         /**< modulo count. If < 0 then no counting is done (no SBR headers) */
+};
+
+typedef struct SBR_BITSTREAM_DATA  *HANDLE_SBR_BITSTREAM_DATA;
+
+struct SBR_HEADER_DATA
+{
+  AMP_RES sbr_amp_res;
+  INT sbr_start_frequency;
+  INT sbr_stop_frequency;
+  INT sbr_xover_band;
+  INT sbr_noise_bands;
+  INT sbr_data_extra;
+  INT header_extra_1;
+  INT header_extra_2;
+  INT sbr_lc_stereo_mode;
+  INT sbr_limiter_bands;
+  INT sbr_limiter_gains;
+  INT sbr_interpol_freq;
+  INT sbr_smoothing_length;
+  INT alterScale;
+  INT freqScale;
+
+  /*
+    element of sbrdata
+  */
+  SR_MODE sampleRateMode;
+
+  /*
+    element of channelpairelement
+  */
+  INT coupling;
+  INT prev_coupling;
+
+  /*
+    element of singlechannelelement
+  */
+
+};
+typedef struct SBR_HEADER_DATA *HANDLE_SBR_HEADER_DATA;
+
+struct SBR_ENV_DATA
+{
+
+  INT sbr_xpos_ctrl;
+  INT freq_res_fixfix;
+
+
+  INVF_MODE sbr_invf_mode;
+  INVF_MODE sbr_invf_mode_vec[MAX_NUM_NOISE_VALUES];
+
+  XPOS_MODE sbr_xpos_mode;
+
+  INT ienvelope[MAX_ENVELOPES][MAX_FREQ_COEFFS];
+
+  INT codeBookScfLavBalance;
+  INT codeBookScfLav;
+  const INT *hufftableTimeC;
+  const INT *hufftableFreqC;
+  const UCHAR *hufftableTimeL;
+  const UCHAR *hufftableFreqL;
+
+  const INT *hufftableLevelTimeC;
+  const INT *hufftableBalanceTimeC;
+  const INT *hufftableLevelFreqC;
+  const INT *hufftableBalanceFreqC;
+  const UCHAR *hufftableLevelTimeL;
+  const UCHAR *hufftableBalanceTimeL;
+  const UCHAR *hufftableLevelFreqL;
+  const UCHAR *hufftableBalanceFreqL;
+
+
+  const UCHAR *hufftableNoiseTimeL;
+  const INT *hufftableNoiseTimeC;
+  const UCHAR *hufftableNoiseFreqL;
+  const INT *hufftableNoiseFreqC;
+
+  const UCHAR *hufftableNoiseLevelTimeL;
+  const INT *hufftableNoiseLevelTimeC;
+  const UCHAR *hufftableNoiseBalanceTimeL;
+  const INT *hufftableNoiseBalanceTimeC;
+  const UCHAR *hufftableNoiseLevelFreqL;
+  const INT *hufftableNoiseLevelFreqC;
+  const UCHAR *hufftableNoiseBalanceFreqL;
+  const INT *hufftableNoiseBalanceFreqC;
+
+  HANDLE_SBR_GRID hSbrBSGrid;
+
+  INT noHarmonics;
+  INT addHarmonicFlag;
+  UCHAR addHarmonic[MAX_FREQ_COEFFS];
+
+
+  /* calculated helper vars */
+  INT si_sbr_start_env_bits_balance;
+  INT si_sbr_start_env_bits;
+  INT si_sbr_start_noise_bits_balance;
+  INT si_sbr_start_noise_bits;
+
+  INT noOfEnvelopes;
+  INT noScfBands[MAX_ENVELOPES];
+  INT domain_vec[MAX_ENVELOPES];
+  INT domain_vec_noise[MAX_ENVELOPES];
+  SCHAR sbr_noise_levels[MAX_FREQ_COEFFS];
+  INT noOfnoisebands;
+
+  INT balance;
+  AMP_RES init_sbr_amp_res;
+  AMP_RES currentAmpResFF;
+
+  /* extended data */
+  INT extended_data;
+  INT extension_size;
+  INT extension_id;
+  UCHAR extended_data_buffer[SBR_EXTENDED_DATA_MAX_CNT];
+
+  UCHAR ldGrid;
+};
+typedef struct SBR_ENV_DATA *HANDLE_SBR_ENV_DATA;
+
+
+
+INT FDKsbrEnc_WriteEnvSingleChannelElement(struct SBR_HEADER_DATA    *sbrHeaderData,
+                                 struct T_PARAMETRIC_STEREO *hParametricStereo,
+                                 struct SBR_BITSTREAM_DATA *sbrBitstreamData,
+                                 struct SBR_ENV_DATA       *sbrEnvData,
+                                 struct COMMON_DATA        *cmonData,
+                                 UINT                       sbrSyntaxFlags);
+
+
+INT FDKsbrEnc_WriteEnvChannelPairElement(struct SBR_HEADER_DATA    *sbrHeaderData,
+                               struct T_PARAMETRIC_STEREO *hParametricStereo,
+                               struct SBR_BITSTREAM_DATA *sbrBitstreamData,
+                               struct SBR_ENV_DATA       *sbrEnvDataLeft,
+                               struct SBR_ENV_DATA       *sbrEnvDataRight,
+                               struct COMMON_DATA        *cmonData,
+                               UINT                       sbrSyntaxFlags);
+
+
+
+INT FDKsbrEnc_CountSbrChannelPairElement (struct SBR_HEADER_DATA     *sbrHeaderData,
+                                struct T_PARAMETRIC_STEREO *hParametricStereo,
+                                struct SBR_BITSTREAM_DATA  *sbrBitstreamData,
+                                struct SBR_ENV_DATA        *sbrEnvDataLeft,
+                                struct SBR_ENV_DATA        *sbrEnvDataRight,
+                                struct COMMON_DATA         *cmonData,
+                                UINT                        sbrSyntaxFlags);
+
+
+
+/* debugging and tuning functions */
+
+/*#define SBR_ENV_STATISTICS */
+
+
+/*#define SBR_PAYLOAD_MONITOR*/
+
+#endif