4997921118
There were assert failures for test cases with mode switching and LBRR enabled. (some similar problems remain) Tim identified that the assert was falsely firing while encoding LBRR frames but the flag doesn't matter while encoding the bitstream it only actually matters in silk/process_NLSFs.c.
249 lines
12 KiB
C
249 lines
12 KiB
C
/***********************************************************************
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Copyright (c) 2006-2011, Skype Limited. All rights reserved.
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Redistribution and use in source and binary forms, with or without
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modification, (subject to the limitations in the disclaimer below)
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are permitted provided that the following conditions are met:
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- Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimer.
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- Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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- Neither the name of Skype Limited, nor the names of specific
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contributors, may be used to endorse or promote products derived from
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this software without specific prior written permission.
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NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED
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BY THIS LICENSE. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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CONTRIBUTORS ''AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
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BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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***********************************************************************/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "main.h"
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/* Encode side-information parameters to payload */
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void silk_encode_indices(
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silk_encoder_state *psEncC, /* I/O Encoder state */
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ec_enc *psRangeEnc, /* I/O Compressor data structure */
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opus_int FrameIndex, /* I Frame number */
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opus_int encode_LBRR /* I Flag indicating LBRR data is being encoded */
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)
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{
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opus_int i, k, condCoding, typeOffset;
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opus_int encode_absolute_lagIndex, delta_lagIndex;
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opus_int16 ec_ix[ MAX_LPC_ORDER ];
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opus_uint8 pred_Q8[ MAX_LPC_ORDER ];
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const SideInfoIndices *psIndices;
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#if SAVE_ALL_INTERNAL_DATA
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opus_int nBytes_lagIndex, nBytes_contourIndex, nBytes_LTP;
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opus_int nBytes_after, nBytes_before;
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#endif
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/* Use conditional coding if previous frame available */
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if( FrameIndex > 0 && ( encode_LBRR == 0 || psEncC->LBRR_flags[ FrameIndex - 1 ] == 1 ) ) {
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condCoding = 1;
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} else {
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condCoding = 0;
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}
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if( encode_LBRR ) {
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psIndices = &psEncC->indices_LBRR[ FrameIndex ];
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} else {
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psIndices = &psEncC->indices;
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}
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/*******************************************/
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/* Encode signal type and quantizer offset */
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/*******************************************/
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typeOffset = 2 * psIndices->signalType + psIndices->quantOffsetType;
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silk_assert( typeOffset >= 0 && typeOffset < 6 );
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silk_assert( encode_LBRR == 0 || typeOffset >= 2 );
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if( encode_LBRR || typeOffset >= 2 ) {
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ec_enc_icdf( psRangeEnc, typeOffset - 2, silk_type_offset_VAD_iCDF, 8 );
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} else {
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ec_enc_icdf( psRangeEnc, typeOffset, silk_type_offset_no_VAD_iCDF, 8 );
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}
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/****************/
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/* Encode gains */
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/****************/
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#ifdef SAVE_ALL_INTERNAL_DATA
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nBytes_before = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
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#endif
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/* first subframe */
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if( condCoding ) {
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/* conditional coding */
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silk_assert( psIndices->GainsIndices[ 0 ] >= 0 && psIndices->GainsIndices[ 0 ] < MAX_DELTA_GAIN_QUANT - MIN_DELTA_GAIN_QUANT + 1 );
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ec_enc_icdf( psRangeEnc, psIndices->GainsIndices[ 0 ], silk_delta_gain_iCDF, 8 );
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} else {
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/* independent coding, in two stages: MSB bits followed by 3 LSBs */
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silk_assert( psIndices->GainsIndices[ 0 ] >= 0 && psIndices->GainsIndices[ 0 ] < N_LEVELS_QGAIN );
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ec_enc_icdf( psRangeEnc, silk_RSHIFT( psIndices->GainsIndices[ 0 ], 3 ), silk_gain_iCDF[ psIndices->signalType ], 8 );
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ec_enc_icdf( psRangeEnc, psIndices->GainsIndices[ 0 ] & 7, silk_uniform8_iCDF, 8 );
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}
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/* remaining subframes */
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for( i = 1; i < psEncC->nb_subfr; i++ ) {
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silk_assert( psIndices->GainsIndices[ i ] >= 0 && psIndices->GainsIndices[ i ] < MAX_DELTA_GAIN_QUANT - MIN_DELTA_GAIN_QUANT + 1 );
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ec_enc_icdf( psRangeEnc, psIndices->GainsIndices[ i ], silk_delta_gain_iCDF, 8 );
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}
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#ifdef SAVE_ALL_INTERNAL_DATA
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nBytes_after = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
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nBytes_after -= nBytes_before; /* bytes just added*/
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DEBUG_STORE_DATA( nBytes_gains.dat, &nBytes_after, sizeof( opus_int ) );
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#endif
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/****************/
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/* Encode NLSFs */
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/****************/
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#ifdef SAVE_ALL_INTERNAL_DATA
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nBytes_before = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
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#endif
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ec_enc_icdf( psRangeEnc, psIndices->NLSFIndices[ 0 ], &psEncC->psNLSF_CB->CB1_iCDF[ ( psIndices->signalType >> 1 ) * psEncC->psNLSF_CB->nVectors ], 8 );
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silk_NLSF_unpack( ec_ix, pred_Q8, psEncC->psNLSF_CB, psIndices->NLSFIndices[ 0 ] );
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silk_assert( psEncC->psNLSF_CB->order == psEncC->predictLPCOrder );
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for( i = 0; i < psEncC->psNLSF_CB->order; i++ ) {
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if( psIndices->NLSFIndices[ i+1 ] >= NLSF_QUANT_MAX_AMPLITUDE ) {
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ec_enc_icdf( psRangeEnc, 2 * NLSF_QUANT_MAX_AMPLITUDE, &psEncC->psNLSF_CB->ec_iCDF[ ec_ix[ i ] ], 8 );
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ec_enc_icdf( psRangeEnc, psIndices->NLSFIndices[ i+1 ] - NLSF_QUANT_MAX_AMPLITUDE, silk_NLSF_EXT_iCDF, 8 );
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} else if( psIndices->NLSFIndices[ i+1 ] <= -NLSF_QUANT_MAX_AMPLITUDE ) {
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ec_enc_icdf( psRangeEnc, 0, &psEncC->psNLSF_CB->ec_iCDF[ ec_ix[ i ] ], 8 );
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ec_enc_icdf( psRangeEnc, -psIndices->NLSFIndices[ i+1 ] - NLSF_QUANT_MAX_AMPLITUDE, silk_NLSF_EXT_iCDF, 8 );
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} else {
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ec_enc_icdf( psRangeEnc, psIndices->NLSFIndices[ i+1 ] + NLSF_QUANT_MAX_AMPLITUDE, &psEncC->psNLSF_CB->ec_iCDF[ ec_ix[ i ] ], 8 );
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}
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}
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/* Encode NLSF interpolation factor */
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if( psEncC->nb_subfr == MAX_NB_SUBFR ) {
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silk_assert( psIndices->NLSFInterpCoef_Q2 >= 0 && psIndices->NLSFInterpCoef_Q2 < 5 );
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ec_enc_icdf( psRangeEnc, psIndices->NLSFInterpCoef_Q2, silk_NLSF_interpolation_factor_iCDF, 8 );
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}
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#ifdef SAVE_ALL_INTERNAL_DATA
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DEBUG_STORE_DATA( lsf_interpol.dat, &psIndices->NLSFInterpCoef_Q2, sizeof(int) );
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nBytes_after = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
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nBytes_after -= nBytes_before; /* bytes just added*/
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DEBUG_STORE_DATA( nBytes_LSF.dat, &nBytes_after, sizeof( opus_int ) );
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#endif
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if( psIndices->signalType == TYPE_VOICED )
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{
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/*********************/
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/* Encode pitch lags */
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/*********************/
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#ifdef SAVE_ALL_INTERNAL_DATA
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nBytes_before = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
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#endif
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/* lag index */
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encode_absolute_lagIndex = 1;
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if( condCoding && psEncC->ec_prevSignalType == TYPE_VOICED ) {
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/* Delta Encoding */
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delta_lagIndex = psIndices->lagIndex - psEncC->ec_prevLagIndex;
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if( delta_lagIndex < -8 || delta_lagIndex > 11 ) {
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delta_lagIndex = 0;
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} else {
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delta_lagIndex = delta_lagIndex + 9;
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encode_absolute_lagIndex = 0; /* Only use delta */
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}
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silk_assert( delta_lagIndex >= 0 && delta_lagIndex < 21 );
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ec_enc_icdf( psRangeEnc, delta_lagIndex, silk_pitch_delta_iCDF, 8 );
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}
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if( encode_absolute_lagIndex ) {
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/* Absolute encoding */
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opus_int32 pitch_high_bits, pitch_low_bits;
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pitch_high_bits = silk_DIV32_16( psIndices->lagIndex, silk_RSHIFT( psEncC->fs_kHz, 1 ) );
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pitch_low_bits = psIndices->lagIndex - silk_SMULBB( pitch_high_bits, silk_RSHIFT( psEncC->fs_kHz, 1 ) );
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silk_assert( pitch_low_bits < psEncC->fs_kHz / 2 );
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silk_assert( pitch_high_bits < 32 );
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ec_enc_icdf( psRangeEnc, pitch_high_bits, silk_pitch_lag_iCDF, 8 );
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ec_enc_icdf( psRangeEnc, pitch_low_bits, psEncC->pitch_lag_low_bits_iCDF, 8 );
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}
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psEncC->ec_prevLagIndex = psIndices->lagIndex;
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#ifdef SAVE_ALL_INTERNAL_DATA
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nBytes_after = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
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nBytes_lagIndex = nBytes_after - nBytes_before; /* bytes just added*/
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#endif
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#ifdef SAVE_ALL_INTERNAL_DATA
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nBytes_before = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
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#endif
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/* Countour index */
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silk_assert( psIndices->contourIndex >= 0 );
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silk_assert( ( psIndices->contourIndex < 34 && psEncC->fs_kHz > 8 && psEncC->nb_subfr == 4 ) ||
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( psIndices->contourIndex < 11 && psEncC->fs_kHz == 8 && psEncC->nb_subfr == 4 ) ||
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( psIndices->contourIndex < 12 && psEncC->fs_kHz > 8 && psEncC->nb_subfr == 2 ) ||
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( psIndices->contourIndex < 3 && psEncC->fs_kHz == 8 && psEncC->nb_subfr == 2 ) );
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ec_enc_icdf( psRangeEnc, psIndices->contourIndex, psEncC->pitch_contour_iCDF, 8 );
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#ifdef SAVE_ALL_INTERNAL_DATA
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nBytes_after = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
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nBytes_contourIndex = nBytes_after - nBytes_before; /* bytes just added*/
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#endif
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/********************/
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/* Encode LTP gains */
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/********************/
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#ifdef SAVE_ALL_INTERNAL_DATA
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nBytes_before = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
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#endif
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/* PERIndex value */
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silk_assert( psIndices->PERIndex >= 0 && psIndices->PERIndex < 3 );
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ec_enc_icdf( psRangeEnc, psIndices->PERIndex, silk_LTP_per_index_iCDF, 8 );
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/* Codebook Indices */
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for( k = 0; k < psEncC->nb_subfr; k++ ) {
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silk_assert( psIndices->LTPIndex[ k ] >= 0 && psIndices->LTPIndex[ k ] < ( 8 << psIndices->PERIndex ) );
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ec_enc_icdf( psRangeEnc, psIndices->LTPIndex[ k ], silk_LTP_gain_iCDF_ptrs[ psIndices->PERIndex ], 8 );
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}
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/**********************/
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/* Encode LTP scaling */
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/**********************/
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if( !condCoding ) {
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silk_assert( psIndices->LTP_scaleIndex >= 0 && psIndices->LTP_scaleIndex < 3 );
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ec_enc_icdf( psRangeEnc, psIndices->LTP_scaleIndex, silk_LTPscale_iCDF, 8 );
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}
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silk_assert( !condCoding || psIndices->LTP_scaleIndex == 0 );
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#ifdef SAVE_ALL_INTERNAL_DATA
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nBytes_after = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
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nBytes_LTP = nBytes_after - nBytes_before; /* bytes just added*/
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#endif
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}
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#ifdef SAVE_ALL_INTERNAL_DATA
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else {
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/* Unvoiced speech*/
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nBytes_lagIndex = 0;
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nBytes_contourIndex = 0;
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nBytes_LTP = 0;
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}
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DEBUG_STORE_DATA( nBytes_lagIndex.dat, &nBytes_lagIndex, sizeof( opus_int ) );
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DEBUG_STORE_DATA( nBytes_contourIndex.dat, &nBytes_contourIndex, sizeof( opus_int ) );
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DEBUG_STORE_DATA( nBytes_LTP.dat, &nBytes_LTP, sizeof( opus_int ) );
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#endif
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psEncC->ec_prevSignalType = psIndices->signalType;
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#ifdef SAVE_ALL_INTERNAL_DATA
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nBytes_before = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
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#endif
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/***************/
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/* Encode seed */
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/***************/
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silk_assert( psIndices->Seed >= 0 && psIndices->Seed < 4 );
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ec_enc_icdf( psRangeEnc, psIndices->Seed, silk_uniform4_iCDF, 8 );
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}
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