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Diffstat (limited to 'src/opus-1.0.2/silk/main.h')
| -rw-r--r-- | src/opus-1.0.2/silk/main.h | 434 |
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diff --git a/src/opus-1.0.2/silk/main.h b/src/opus-1.0.2/silk/main.h deleted file mode 100644 index 32675f69..00000000 --- a/src/opus-1.0.2/silk/main.h +++ /dev/null @@ -1,434 +0,0 @@ -/*********************************************************************** -Copyright (c) 2006-2011, Skype Limited. All rights reserved. -Redistribution and use in source and binary forms, with or without -modification, are permitted provided that the following conditions -are met: -- Redistributions of source code must retain the above copyright notice, -this list of conditions and the following disclaimer. -- Redistributions in binary form must reproduce the above copyright -notice, this list of conditions and the following disclaimer in the -documentation and/or other materials provided with the distribution. -- Neither the name of Internet Society, IETF or IETF Trust, nor the -names of specific contributors, may be used to endorse or promote -products derived from this software without specific prior written -permission. -THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” -AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE -IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE -ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER 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 OR OTHERWISE) -ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE -POSSIBILITY OF SUCH DAMAGE. -***********************************************************************/ - -#ifndef SILK_MAIN_H -#define SILK_MAIN_H - -#include "SigProc_FIX.h" -#include "define.h" -#include "structs.h" -#include "tables.h" -#include "PLC.h" -#include "control.h" -#include "debug.h" -#include "entenc.h" -#include "entdec.h" - -/* Convert Left/Right stereo signal to adaptive Mid/Side representation */ -void silk_stereo_LR_to_MS( - stereo_enc_state *state, /* I/O State */ - opus_int16 x1[], /* I/O Left input signal, becomes mid signal */ - opus_int16 x2[], /* I/O Right input signal, becomes side signal */ - opus_int8 ix[ 2 ][ 3 ], /* O Quantization indices */ - opus_int8 *mid_only_flag, /* O Flag: only mid signal coded */ - opus_int32 mid_side_rates_bps[], /* O Bitrates for mid and side signals */ - opus_int32 total_rate_bps, /* I Total bitrate */ - opus_int prev_speech_act_Q8, /* I Speech activity level in previous frame */ - opus_int toMono, /* I Last frame before a stereo->mono transition */ - opus_int fs_kHz, /* I Sample rate (kHz) */ - opus_int frame_length /* I Number of samples */ -); - -/* Convert adaptive Mid/Side representation to Left/Right stereo signal */ -void silk_stereo_MS_to_LR( - stereo_dec_state *state, /* I/O State */ - opus_int16 x1[], /* I/O Left input signal, becomes mid signal */ - opus_int16 x2[], /* I/O Right input signal, becomes side signal */ - const opus_int32 pred_Q13[], /* I Predictors */ - opus_int fs_kHz, /* I Samples rate (kHz) */ - opus_int frame_length /* I Number of samples */ -); - -/* Find least-squares prediction gain for one signal based on another and quantize it */ -opus_int32 silk_stereo_find_predictor( /* O Returns predictor in Q13 */ - opus_int32 *ratio_Q14, /* O Ratio of residual and mid energies */ - const opus_int16 x[], /* I Basis signal */ - const opus_int16 y[], /* I Target signal */ - opus_int32 mid_res_amp_Q0[], /* I/O Smoothed mid, residual norms */ - opus_int length, /* I Number of samples */ - opus_int smooth_coef_Q16 /* I Smoothing coefficient */ -); - -/* Quantize mid/side predictors */ -void silk_stereo_quant_pred( - opus_int32 pred_Q13[], /* I/O Predictors (out: quantized) */ - opus_int8 ix[ 2 ][ 3 ] /* O Quantization indices */ -); - -/* Entropy code the mid/side quantization indices */ -void silk_stereo_encode_pred( - ec_enc *psRangeEnc, /* I/O Compressor data structure */ - opus_int8 ix[ 2 ][ 3 ] /* I Quantization indices */ -); - -/* Entropy code the mid-only flag */ -void silk_stereo_encode_mid_only( - ec_enc *psRangeEnc, /* I/O Compressor data structure */ - opus_int8 mid_only_flag -); - -/* Decode mid/side predictors */ -void silk_stereo_decode_pred( - ec_dec *psRangeDec, /* I/O Compressor data structure */ - opus_int32 pred_Q13[] /* O Predictors */ -); - -/* Decode mid-only flag */ -void silk_stereo_decode_mid_only( - ec_dec *psRangeDec, /* I/O Compressor data structure */ - opus_int *decode_only_mid /* O Flag that only mid channel has been coded */ -); - -/* Encodes signs of excitation */ -void silk_encode_signs( - ec_enc *psRangeEnc, /* I/O Compressor data structure */ - const opus_int8 pulses[], /* I pulse signal */ - opus_int length, /* I length of input */ - const opus_int signalType, /* I Signal type */ - const opus_int quantOffsetType, /* I Quantization offset type */ - const opus_int sum_pulses[ MAX_NB_SHELL_BLOCKS ] /* I Sum of absolute pulses per block */ -); - -/* Decodes signs of excitation */ -void silk_decode_signs( - ec_dec *psRangeDec, /* I/O Compressor data structure */ - opus_int pulses[], /* I/O pulse signal */ - opus_int length, /* I length of input */ - const opus_int signalType, /* I Signal type */ - const opus_int quantOffsetType, /* I Quantization offset type */ - const opus_int sum_pulses[ MAX_NB_SHELL_BLOCKS ] /* I Sum of absolute pulses per block */ -); - -/* Check encoder control struct */ -opus_int check_control_input( - silk_EncControlStruct *encControl /* I Control structure */ -); - -/* Control internal sampling rate */ -opus_int silk_control_audio_bandwidth( - silk_encoder_state *psEncC, /* I/O Pointer to Silk encoder state */ - silk_EncControlStruct *encControl /* I Control structure */ -); - -/* Control SNR of redidual quantizer */ -opus_int silk_control_SNR( - silk_encoder_state *psEncC, /* I/O Pointer to Silk encoder state */ - opus_int32 TargetRate_bps /* I Target max bitrate (bps) */ -); - -/***************/ -/* Shell coder */ -/***************/ - -/* Encode quantization indices of excitation */ -void silk_encode_pulses( - ec_enc *psRangeEnc, /* I/O compressor data structure */ - const opus_int signalType, /* I Signal type */ - const opus_int quantOffsetType, /* I quantOffsetType */ - opus_int8 pulses[], /* I quantization indices */ - const opus_int frame_length /* I Frame length */ -); - -/* Shell encoder, operates on one shell code frame of 16 pulses */ -void silk_shell_encoder( - ec_enc *psRangeEnc, /* I/O compressor data structure */ - const opus_int *pulses0 /* I data: nonnegative pulse amplitudes */ -); - -/* Shell decoder, operates on one shell code frame of 16 pulses */ -void silk_shell_decoder( - opus_int *pulses0, /* O data: nonnegative pulse amplitudes */ - ec_dec *psRangeDec, /* I/O Compressor data structure */ - const opus_int pulses4 /* I number of pulses per pulse-subframe */ -); - -/* Gain scalar quantization with hysteresis, uniform on log scale */ -void silk_gains_quant( - opus_int8 ind[ MAX_NB_SUBFR ], /* O gain indices */ - opus_int32 gain_Q16[ MAX_NB_SUBFR ], /* I/O gains (quantized out) */ - opus_int8 *prev_ind, /* I/O last index in previous frame */ - const opus_int conditional, /* I first gain is delta coded if 1 */ - const opus_int nb_subfr /* I number of subframes */ -); - -/* Gains scalar dequantization, uniform on log scale */ -void silk_gains_dequant( - opus_int32 gain_Q16[ MAX_NB_SUBFR ], /* O quantized gains */ - const opus_int8 ind[ MAX_NB_SUBFR ], /* I gain indices */ - opus_int8 *prev_ind, /* I/O last index in previous frame */ - const opus_int conditional, /* I first gain is delta coded if 1 */ - const opus_int nb_subfr /* I number of subframes */ -); - -/* Compute unique identifier of gain indices vector */ -opus_int32 silk_gains_ID( /* O returns unique identifier of gains */ - const opus_int8 ind[ MAX_NB_SUBFR ], /* I gain indices */ - const opus_int nb_subfr /* I number of subframes */ -); - -/* Interpolate two vectors */ -void silk_interpolate( - opus_int16 xi[ MAX_LPC_ORDER ], /* O interpolated vector */ - const opus_int16 x0[ MAX_LPC_ORDER ], /* I first vector */ - const opus_int16 x1[ MAX_LPC_ORDER ], /* I second vector */ - const opus_int ifact_Q2, /* I interp. factor, weight on 2nd vector */ - const opus_int d /* I number of parameters */ -); - -/* LTP tap quantizer */ -void silk_quant_LTP_gains( - opus_int16 B_Q14[ MAX_NB_SUBFR * LTP_ORDER ], /* I/O (un)quantized LTP gains */ - opus_int8 cbk_index[ MAX_NB_SUBFR ], /* O Codebook Index */ - opus_int8 *periodicity_index, /* O Periodicity Index */ - const opus_int32 W_Q18[ MAX_NB_SUBFR*LTP_ORDER*LTP_ORDER ], /* I Error Weights in Q18 */ - opus_int mu_Q9, /* I Mu value (R/D tradeoff) */ - opus_int lowComplexity, /* I Flag for low complexity */ - const opus_int nb_subfr /* I number of subframes */ -); - -/* Entropy constrained matrix-weighted VQ, for a single input data vector */ -void silk_VQ_WMat_EC( - opus_int8 *ind, /* O index of best codebook vector */ - opus_int32 *rate_dist_Q14, /* O best weighted quant error + mu * rate */ - const opus_int16 *in_Q14, /* I input vector to be quantized */ - const opus_int32 *W_Q18, /* I weighting matrix */ - const opus_int8 *cb_Q7, /* I codebook */ - const opus_uint8 *cl_Q5, /* I code length for each codebook vector */ - const opus_int mu_Q9, /* I tradeoff betw. weighted error and rate */ - opus_int L /* I number of vectors in codebook */ -); - -/************************************/ -/* Noise shaping quantization (NSQ) */ -/************************************/ -void silk_NSQ( - const silk_encoder_state *psEncC, /* I/O Encoder State */ - silk_nsq_state *NSQ, /* I/O NSQ state */ - SideInfoIndices *psIndices, /* I/O Quantization Indices */ - const opus_int32 x_Q3[], /* I Prefiltered input signal */ - opus_int8 pulses[], /* O Quantized pulse signal */ - const opus_int16 PredCoef_Q12[ 2 * MAX_LPC_ORDER ], /* I Short term prediction coefs */ - const opus_int16 LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ], /* I Long term prediction coefs */ - const opus_int16 AR2_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ], /* I Noise shaping coefs */ - const opus_int HarmShapeGain_Q14[ MAX_NB_SUBFR ], /* I Long term shaping coefs */ - const opus_int Tilt_Q14[ MAX_NB_SUBFR ], /* I Spectral tilt */ - const opus_int32 LF_shp_Q14[ MAX_NB_SUBFR ], /* I Low frequency shaping coefs */ - const opus_int32 Gains_Q16[ MAX_NB_SUBFR ], /* I Quantization step sizes */ - const opus_int pitchL[ MAX_NB_SUBFR ], /* I Pitch lags */ - const opus_int Lambda_Q10, /* I Rate/distortion tradeoff */ - const opus_int LTP_scale_Q14 /* I LTP state scaling */ -); - -/* Noise shaping using delayed decision */ -void silk_NSQ_del_dec( - const silk_encoder_state *psEncC, /* I/O Encoder State */ - silk_nsq_state *NSQ, /* I/O NSQ state */ - SideInfoIndices *psIndices, /* I/O Quantization Indices */ - const opus_int32 x_Q3[], /* I Prefiltered input signal */ - opus_int8 pulses[], /* O Quantized pulse signal */ - const opus_int16 PredCoef_Q12[ 2 * MAX_LPC_ORDER ], /* I Short term prediction coefs */ - const opus_int16 LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ], /* I Long term prediction coefs */ - const opus_int16 AR2_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ], /* I Noise shaping coefs */ - const opus_int HarmShapeGain_Q14[ MAX_NB_SUBFR ], /* I Long term shaping coefs */ - const opus_int Tilt_Q14[ MAX_NB_SUBFR ], /* I Spectral tilt */ - const opus_int32 LF_shp_Q14[ MAX_NB_SUBFR ], /* I Low frequency shaping coefs */ - const opus_int32 Gains_Q16[ MAX_NB_SUBFR ], /* I Quantization step sizes */ - const opus_int pitchL[ MAX_NB_SUBFR ], /* I Pitch lags */ - const opus_int Lambda_Q10, /* I Rate/distortion tradeoff */ - const opus_int LTP_scale_Q14 /* I LTP state scaling */ -); - -/************/ -/* Silk VAD */ -/************/ -/* Initialize the Silk VAD */ -opus_int silk_VAD_Init( /* O Return value, 0 if success */ - silk_VAD_state *psSilk_VAD /* I/O Pointer to Silk VAD state */ -); - -/* Get speech activity level in Q8 */ -opus_int silk_VAD_GetSA_Q8( /* O Return value, 0 if success */ - silk_encoder_state *psEncC, /* I/O Encoder state */ - const opus_int16 pIn[] /* I PCM input */ -); - -/* Low-pass filter with variable cutoff frequency based on */ -/* piece-wise linear interpolation between elliptic filters */ -/* Start by setting transition_frame_no = 1; */ -void silk_LP_variable_cutoff( - silk_LP_state *psLP, /* I/O LP filter state */ - opus_int16 *frame, /* I/O Low-pass filtered output signal */ - const opus_int frame_length /* I Frame length */ -); - -/******************/ -/* NLSF Quantizer */ -/******************/ -/* Limit, stabilize, convert and quantize NLSFs */ -void silk_process_NLSFs( - silk_encoder_state *psEncC, /* I/O Encoder state */ - opus_int16 PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ], /* O Prediction coefficients */ - opus_int16 pNLSF_Q15[ MAX_LPC_ORDER ], /* I/O Normalized LSFs (quant out) (0 - (2^15-1)) */ - const opus_int16 prev_NLSFq_Q15[ MAX_LPC_ORDER ] /* I Previous Normalized LSFs (0 - (2^15-1)) */ -); - -opus_int32 silk_NLSF_encode( /* O Returns RD value in Q25 */ - opus_int8 *NLSFIndices, /* I Codebook path vector [ LPC_ORDER + 1 ] */ - opus_int16 *pNLSF_Q15, /* I/O Quantized NLSF vector [ LPC_ORDER ] */ - const silk_NLSF_CB_struct *psNLSF_CB, /* I Codebook object */ - const opus_int16 *pW_QW, /* I NLSF weight vector [ LPC_ORDER ] */ - const opus_int NLSF_mu_Q20, /* I Rate weight for the RD optimization */ - const opus_int nSurvivors, /* I Max survivors after first stage */ - const opus_int signalType /* I Signal type: 0/1/2 */ -); - -/* Compute quantization errors for an LPC_order element input vector for a VQ codebook */ -void silk_NLSF_VQ( - opus_int32 err_Q26[], /* O Quantization errors [K] */ - const opus_int16 in_Q15[], /* I Input vectors to be quantized [LPC_order] */ - const opus_uint8 pCB_Q8[], /* I Codebook vectors [K*LPC_order] */ - const opus_int K, /* I Number of codebook vectors */ - const opus_int LPC_order /* I Number of LPCs */ -); - -/* Delayed-decision quantizer for NLSF residuals */ -opus_int32 silk_NLSF_del_dec_quant( /* O Returns RD value in Q25 */ - opus_int8 indices[], /* O Quantization indices [ order ] */ - const opus_int16 x_Q10[], /* I Input [ order ] */ - const opus_int16 w_Q5[], /* I Weights [ order ] */ - const opus_uint8 pred_coef_Q8[], /* I Backward predictor coefs [ order ] */ - const opus_int16 ec_ix[], /* I Indices to entropy coding tables [ order ] */ - const opus_uint8 ec_rates_Q5[], /* I Rates [] */ - const opus_int quant_step_size_Q16, /* I Quantization step size */ - const opus_int16 inv_quant_step_size_Q6, /* I Inverse quantization step size */ - const opus_int32 mu_Q20, /* I R/D tradeoff */ - const opus_int16 order /* I Number of input values */ -); - -/* Unpack predictor values and indices for entropy coding tables */ -void silk_NLSF_unpack( - opus_int16 ec_ix[], /* O Indices to entropy tables [ LPC_ORDER ] */ - opus_uint8 pred_Q8[], /* O LSF predictor [ LPC_ORDER ] */ - const silk_NLSF_CB_struct *psNLSF_CB, /* I Codebook object */ - const opus_int CB1_index /* I Index of vector in first LSF codebook */ -); - -/***********************/ -/* NLSF vector decoder */ -/***********************/ -void silk_NLSF_decode( - opus_int16 *pNLSF_Q15, /* O Quantized NLSF vector [ LPC_ORDER ] */ - opus_int8 *NLSFIndices, /* I Codebook path vector [ LPC_ORDER + 1 ] */ - const silk_NLSF_CB_struct *psNLSF_CB /* I Codebook object */ -); - -/****************************************************/ -/* Decoder Functions */ -/****************************************************/ -opus_int silk_init_decoder( - silk_decoder_state *psDec /* I/O Decoder state pointer */ -); - -/* Set decoder sampling rate */ -opus_int silk_decoder_set_fs( - silk_decoder_state *psDec, /* I/O Decoder state pointer */ - opus_int fs_kHz, /* I Sampling frequency (kHz) */ - opus_int32 fs_API_Hz /* I API Sampling frequency (Hz) */ -); - -/****************/ -/* Decode frame */ -/****************/ -opus_int silk_decode_frame( - silk_decoder_state *psDec, /* I/O Pointer to Silk decoder state */ - ec_dec *psRangeDec, /* I/O Compressor data structure */ - opus_int16 pOut[], /* O Pointer to output speech frame */ - opus_int32 *pN, /* O Pointer to size of output frame */ - opus_int lostFlag, /* I 0: no loss, 1 loss, 2 decode fec */ - opus_int condCoding /* I The type of conditional coding to use */ -); - -/* Decode indices from bitstream */ -void silk_decode_indices( - silk_decoder_state *psDec, /* I/O State */ - ec_dec *psRangeDec, /* I/O Compressor data structure */ - opus_int FrameIndex, /* I Frame number */ - opus_int decode_LBRR, /* I Flag indicating LBRR data is being decoded */ - opus_int condCoding /* I The type of conditional coding to use */ -); - -/* Decode parameters from payload */ -void silk_decode_parameters( - silk_decoder_state *psDec, /* I/O State */ - silk_decoder_control *psDecCtrl, /* I/O Decoder control */ - opus_int condCoding /* I The type of conditional coding to use */ -); - -/* Core decoder. Performs inverse NSQ operation LTP + LPC */ -void silk_decode_core( - silk_decoder_state *psDec, /* I/O Decoder state */ - silk_decoder_control *psDecCtrl, /* I Decoder control */ - opus_int16 xq[], /* O Decoded speech */ - const opus_int pulses[ MAX_FRAME_LENGTH ] /* I Pulse signal */ -); - -/* Decode quantization indices of excitation (Shell coding) */ -void silk_decode_pulses( - ec_dec *psRangeDec, /* I/O Compressor data structure */ - opus_int pulses[], /* O Excitation signal */ - const opus_int signalType, /* I Sigtype */ - const opus_int quantOffsetType, /* I quantOffsetType */ - const opus_int frame_length /* I Frame length */ -); - -/******************/ -/* CNG */ -/******************/ - -/* Reset CNG */ -void silk_CNG_Reset( - silk_decoder_state *psDec /* I/O Decoder state */ -); - -/* Updates CNG estimate, and applies the CNG when packet was lost */ -void silk_CNG( - silk_decoder_state *psDec, /* I/O Decoder state */ - silk_decoder_control *psDecCtrl, /* I/O Decoder control */ - opus_int16 frame[], /* I/O Signal */ - opus_int length /* I Length of residual */ -); - -/* Encoding of various parameters */ -void silk_encode_indices( - silk_encoder_state *psEncC, /* I/O Encoder state */ - ec_enc *psRangeEnc, /* I/O Compressor data structure */ - opus_int FrameIndex, /* I Frame number */ - opus_int encode_LBRR, /* I Flag indicating LBRR data is being encoded */ - opus_int condCoding /* I The type of conditional coding to use */ -); - -#endif |