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Diffstat (limited to 'thirdparty/opus/silk/decode_indices.c')
-rw-r--r--thirdparty/opus/silk/decode_indices.c151
1 files changed, 0 insertions, 151 deletions
diff --git a/thirdparty/opus/silk/decode_indices.c b/thirdparty/opus/silk/decode_indices.c
deleted file mode 100644
index 7afe5c26c1..0000000000
--- a/thirdparty/opus/silk/decode_indices.c
+++ /dev/null
@@ -1,151 +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.
-***********************************************************************/
-
-#ifdef HAVE_CONFIG_H
-#include "config.h"
-#endif
-
-#include "main.h"
-
-/* Decode side-information parameters from payload */
-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 */
-)
-{
- opus_int i, k, Ix;
- opus_int decode_absolute_lagIndex, delta_lagIndex;
- opus_int16 ec_ix[ MAX_LPC_ORDER ];
- opus_uint8 pred_Q8[ MAX_LPC_ORDER ];
-
- /*******************************************/
- /* Decode signal type and quantizer offset */
- /*******************************************/
- if( decode_LBRR || psDec->VAD_flags[ FrameIndex ] ) {
- Ix = ec_dec_icdf( psRangeDec, silk_type_offset_VAD_iCDF, 8 ) + 2;
- } else {
- Ix = ec_dec_icdf( psRangeDec, silk_type_offset_no_VAD_iCDF, 8 );
- }
- psDec->indices.signalType = (opus_int8)silk_RSHIFT( Ix, 1 );
- psDec->indices.quantOffsetType = (opus_int8)( Ix & 1 );
-
- /****************/
- /* Decode gains */
- /****************/
- /* First subframe */
- if( condCoding == CODE_CONDITIONALLY ) {
- /* Conditional coding */
- psDec->indices.GainsIndices[ 0 ] = (opus_int8)ec_dec_icdf( psRangeDec, silk_delta_gain_iCDF, 8 );
- } else {
- /* Independent coding, in two stages: MSB bits followed by 3 LSBs */
- psDec->indices.GainsIndices[ 0 ] = (opus_int8)silk_LSHIFT( ec_dec_icdf( psRangeDec, silk_gain_iCDF[ psDec->indices.signalType ], 8 ), 3 );
- psDec->indices.GainsIndices[ 0 ] += (opus_int8)ec_dec_icdf( psRangeDec, silk_uniform8_iCDF, 8 );
- }
-
- /* Remaining subframes */
- for( i = 1; i < psDec->nb_subfr; i++ ) {
- psDec->indices.GainsIndices[ i ] = (opus_int8)ec_dec_icdf( psRangeDec, silk_delta_gain_iCDF, 8 );
- }
-
- /**********************/
- /* Decode LSF Indices */
- /**********************/
- psDec->indices.NLSFIndices[ 0 ] = (opus_int8)ec_dec_icdf( psRangeDec, &psDec->psNLSF_CB->CB1_iCDF[ ( psDec->indices.signalType >> 1 ) * psDec->psNLSF_CB->nVectors ], 8 );
- silk_NLSF_unpack( ec_ix, pred_Q8, psDec->psNLSF_CB, psDec->indices.NLSFIndices[ 0 ] );
- silk_assert( psDec->psNLSF_CB->order == psDec->LPC_order );
- for( i = 0; i < psDec->psNLSF_CB->order; i++ ) {
- Ix = ec_dec_icdf( psRangeDec, &psDec->psNLSF_CB->ec_iCDF[ ec_ix[ i ] ], 8 );
- if( Ix == 0 ) {
- Ix -= ec_dec_icdf( psRangeDec, silk_NLSF_EXT_iCDF, 8 );
- } else if( Ix == 2 * NLSF_QUANT_MAX_AMPLITUDE ) {
- Ix += ec_dec_icdf( psRangeDec, silk_NLSF_EXT_iCDF, 8 );
- }
- psDec->indices.NLSFIndices[ i+1 ] = (opus_int8)( Ix - NLSF_QUANT_MAX_AMPLITUDE );
- }
-
- /* Decode LSF interpolation factor */
- if( psDec->nb_subfr == MAX_NB_SUBFR ) {
- psDec->indices.NLSFInterpCoef_Q2 = (opus_int8)ec_dec_icdf( psRangeDec, silk_NLSF_interpolation_factor_iCDF, 8 );
- } else {
- psDec->indices.NLSFInterpCoef_Q2 = 4;
- }
-
- if( psDec->indices.signalType == TYPE_VOICED )
- {
- /*********************/
- /* Decode pitch lags */
- /*********************/
- /* Get lag index */
- decode_absolute_lagIndex = 1;
- if( condCoding == CODE_CONDITIONALLY && psDec->ec_prevSignalType == TYPE_VOICED ) {
- /* Decode Delta index */
- delta_lagIndex = (opus_int16)ec_dec_icdf( psRangeDec, silk_pitch_delta_iCDF, 8 );
- if( delta_lagIndex > 0 ) {
- delta_lagIndex = delta_lagIndex - 9;
- psDec->indices.lagIndex = (opus_int16)( psDec->ec_prevLagIndex + delta_lagIndex );
- decode_absolute_lagIndex = 0;
- }
- }
- if( decode_absolute_lagIndex ) {
- /* Absolute decoding */
- psDec->indices.lagIndex = (opus_int16)ec_dec_icdf( psRangeDec, silk_pitch_lag_iCDF, 8 ) * silk_RSHIFT( psDec->fs_kHz, 1 );
- psDec->indices.lagIndex += (opus_int16)ec_dec_icdf( psRangeDec, psDec->pitch_lag_low_bits_iCDF, 8 );
- }
- psDec->ec_prevLagIndex = psDec->indices.lagIndex;
-
- /* Get countour index */
- psDec->indices.contourIndex = (opus_int8)ec_dec_icdf( psRangeDec, psDec->pitch_contour_iCDF, 8 );
-
- /********************/
- /* Decode LTP gains */
- /********************/
- /* Decode PERIndex value */
- psDec->indices.PERIndex = (opus_int8)ec_dec_icdf( psRangeDec, silk_LTP_per_index_iCDF, 8 );
-
- for( k = 0; k < psDec->nb_subfr; k++ ) {
- psDec->indices.LTPIndex[ k ] = (opus_int8)ec_dec_icdf( psRangeDec, silk_LTP_gain_iCDF_ptrs[ psDec->indices.PERIndex ], 8 );
- }
-
- /**********************/
- /* Decode LTP scaling */
- /**********************/
- if( condCoding == CODE_INDEPENDENTLY ) {
- psDec->indices.LTP_scaleIndex = (opus_int8)ec_dec_icdf( psRangeDec, silk_LTPscale_iCDF, 8 );
- } else {
- psDec->indices.LTP_scaleIndex = 0;
- }
- }
- psDec->ec_prevSignalType = psDec->indices.signalType;
-
- /***************/
- /* Decode seed */
- /***************/
- psDec->indices.Seed = (opus_int8)ec_dec_icdf( psRangeDec, silk_uniform4_iCDF, 8 );
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-16 05:06:44 +0000