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Diffstat (limited to 'libSBRenc/src/env_est.h')
| -rw-r--r-- | libSBRenc/src/env_est.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/libSBRenc/src/env_est.h b/libSBRenc/src/env_est.h new file mode 100644 index 0000000..5aa66ee --- /dev/null +++ b/libSBRenc/src/env_est.h @@ -0,0 +1,167 @@ +/**************************************************************************** + + (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 Envelope estimation structs and prototypes $Revision: 36847 $ +*/ +#ifndef __ENV_EST_H +#define __ENV_EST_H + +#include "sbr_def.h" +#include "sbr_encoder.h" /* SBR econfig structs */ +#include "ps_main.h" +#include "bit_sbr.h" +#include "fram_gen.h" +#include "tran_det.h" +#include "code_env.h" +#include "ton_corr.h" + +typedef struct +{ + FIXP_DBL *rBuffer[QMF_MAX_TIME_SLOTS]; + FIXP_DBL *iBuffer[QMF_MAX_TIME_SLOTS]; + + FIXP_DBL *p_YBuffer; + + FIXP_DBL *YBuffer[QMF_MAX_TIME_SLOTS]; + int YBufferScale[2]; + + UCHAR envelopeCompensation[MAX_FREQ_COEFFS]; + UCHAR pre_transient_info[2]; + + + int YBufferWriteOffset; + int YBufferSzShift; + int rBufferReadOffset; + int rBufferWriteOffset; + + int no_cols; + int no_rows; + int start_index; + + int time_slots; + int time_step; +} +SBR_EXTRACT_ENVELOPE; +typedef SBR_EXTRACT_ENVELOPE *HANDLE_SBR_EXTRACT_ENVELOPE; + +struct ENV_CHANNEL +{ + SBR_TRANSIENT_DETECTOR sbrTransientDetector; + SBR_CODE_ENVELOPE sbrCodeEnvelope; + SBR_CODE_ENVELOPE sbrCodeNoiseFloor; + SBR_EXTRACT_ENVELOPE sbrExtractEnvelope; + + + SBR_ENVELOPE_FRAME SbrEnvFrame; + SBR_TON_CORR_EST TonCorr; + + struct SBR_ENV_DATA encEnvData; + + int qmfScale; + UCHAR fLevelProtect; +}; +typedef struct ENV_CHANNEL *HANDLE_ENV_CHANNEL; + +/************ Function Declarations ***************/ + +INT +FDKsbrEnc_CreateExtractSbrEnvelope (HANDLE_SBR_EXTRACT_ENVELOPE hSbrCut, + INT channel + ,INT chInEl + ,UCHAR* dynamic_RAM + ); + + +INT +FDKsbrEnc_InitExtractSbrEnvelope ( + HANDLE_SBR_EXTRACT_ENVELOPE hSbr, + int no_cols, + int no_rows, + int start_index, + int time_slots, int time_step, int tran_off, + ULONG statesInitFlag + ,int chInEl + ,UCHAR* dynamic_RAM + ,UINT sbrSyntaxFlags + ); + +void FDKsbrEnc_deleteExtractSbrEnvelope (HANDLE_SBR_EXTRACT_ENVELOPE hSbrCut); + +typedef struct { + FREQ_RES res[MAX_NUM_NOISE_VALUES]; + int maxQuantError; + +} SBR_FRAME_TEMP_DATA; + +typedef struct { + const SBR_FRAME_INFO *frame_info; + FIXP_DBL noiseFloor[MAX_NUM_NOISE_VALUES]; + SCHAR sfb_nrg_coupling[MAX_NUM_ENVELOPE_VALUES]; /* only used if stereomode = SWITCH_L_R_C */ + SCHAR sfb_nrg[MAX_NUM_ENVELOPE_VALUES]; + SCHAR noise_level_coupling[MAX_NUM_NOISE_VALUES]; /* only used if stereomode = SWITCH_L_R_C */ + SCHAR noise_level[MAX_NUM_NOISE_VALUES]; + UCHAR transient_info[3]; + UCHAR nEnvelopes; +} SBR_ENV_TEMP_DATA; + +/* + * Extract features from QMF data. Afterwards, the QMF data is not required anymore. + */ +void +FDKsbrEnc_extractSbrEnvelope1( + HANDLE_SBR_CONFIG_DATA h_con, + HANDLE_SBR_HEADER_DATA sbrHeaderData, + HANDLE_SBR_BITSTREAM_DATA sbrBitstreamData, + HANDLE_ENV_CHANNEL h_envChan, + HANDLE_COMMON_DATA cmonData, + SBR_ENV_TEMP_DATA *eData, + SBR_FRAME_TEMP_DATA *fData + ); + + +/* + * Process the previously features extracted by FDKsbrEnc_extractSbrEnvelope1 + * and create/encode SBR envelopes. + */ +void +FDKsbrEnc_extractSbrEnvelope2( + HANDLE_SBR_CONFIG_DATA h_con, + HANDLE_SBR_HEADER_DATA sbrHeaderData, + HANDLE_PARAMETRIC_STEREO hParametricStereo, + HANDLE_SBR_BITSTREAM_DATA sbrBitstreamData, + HANDLE_ENV_CHANNEL sbrEnvChannel0, + HANDLE_ENV_CHANNEL sbrEnvChannel1, + HANDLE_COMMON_DATA cmonData, + SBR_ENV_TEMP_DATA *eData, + SBR_FRAME_TEMP_DATA *fData, + int clearOutput + ); + +INT +FDKsbrEnc_GetEnvEstDelay(HANDLE_SBR_EXTRACT_ENVELOPE hSbr); + +#endif |