Upgrade opus 1.0.2 -> 1.1

1 files changed, 0 insertions, 372 deletions

diff --git a/src/opus-1.0.2/silk/float/encode_frame_FLP.c b/src/opus-1.0.2/silk/float/encode_frame_FLP.c
deleted file mode 100644
index 23260bc7..00000000
--- a/src/opus-1.0.2/silk/float/encode_frame_FLP.c
+++ /dev/null
@@ -1,372 +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_FLP.h"
-#include "tuning_parameters.h"
-
-/* Low Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode with lower bitrate */
-static inline void silk_LBRR_encode_FLP(
-    silk_encoder_state_FLP          *psEnc,                             /* I/O  Encoder state FLP                           */
-    silk_encoder_control_FLP        *psEncCtrl,                         /* I/O  Encoder control FLP                         */
-    const silk_float                xfw[],                              /* I    Input signal                                */
-    opus_int                        condCoding                          /* I    The type of conditional coding used so far for this frame */
-);
-
-void silk_encode_do_VAD_FLP(
-    silk_encoder_state_FLP          *psEnc                              /* I/O  Encoder state FLP                           */
-)
-{
-    /****************************/
-    /* Voice Activity Detection */
-    /****************************/
-    silk_VAD_GetSA_Q8( &psEnc->sCmn, psEnc->sCmn.inputBuf + 1 );
-
-    /**************************************************/
-    /* Convert speech activity into VAD and DTX flags */
-    /**************************************************/
-    if( psEnc->sCmn.speech_activity_Q8 < SILK_FIX_CONST( SPEECH_ACTIVITY_DTX_THRES, 8 ) ) {
-        psEnc->sCmn.indices.signalType = TYPE_NO_VOICE_ACTIVITY;
-        psEnc->sCmn.noSpeechCounter++;
-        if( psEnc->sCmn.noSpeechCounter < NB_SPEECH_FRAMES_BEFORE_DTX ) {
-            psEnc->sCmn.inDTX = 0;
-        } else if( psEnc->sCmn.noSpeechCounter > MAX_CONSECUTIVE_DTX + NB_SPEECH_FRAMES_BEFORE_DTX ) {
-            psEnc->sCmn.noSpeechCounter = NB_SPEECH_FRAMES_BEFORE_DTX;
-            psEnc->sCmn.inDTX           = 0;
-        }
-        psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesEncoded ] = 0;
-    } else {
-        psEnc->sCmn.noSpeechCounter    = 0;
-        psEnc->sCmn.inDTX              = 0;
-        psEnc->sCmn.indices.signalType = TYPE_UNVOICED;
-        psEnc->sCmn.VAD_flags[ psEnc->sCmn.nFramesEncoded ] = 1;
-    }
-}
-
-/****************/
-/* Encode frame */
-/****************/
-opus_int silk_encode_frame_FLP(
-    silk_encoder_state_FLP          *psEnc,                             /* I/O  Encoder state FLP                           */
-    opus_int32                      *pnBytesOut,                        /* O    Number of payload bytes;                    */
-    ec_enc                          *psRangeEnc,                        /* I/O  compressor data structure                   */
-    opus_int                        condCoding,                         /* I    The type of conditional coding to use       */
-    opus_int                        maxBits,                            /* I    If > 0: maximum number of output bits       */
-    opus_int                        useCBR                              /* I    Flag to force constant-bitrate operation    */
-)
-{
-    silk_encoder_control_FLP sEncCtrl;
-    opus_int     i, iter, maxIter, found_upper, found_lower, ret = 0;
-    silk_float   *x_frame, *res_pitch_frame;
-    silk_float   xfw[ MAX_FRAME_LENGTH ];
-    silk_float   res_pitch[ 2 * MAX_FRAME_LENGTH + LA_PITCH_MAX ];
-    ec_enc       sRangeEnc_copy, sRangeEnc_copy2;
-    silk_nsq_state sNSQ_copy, sNSQ_copy2;
-    opus_int32   seed_copy, nBits, nBits_lower, nBits_upper, gainMult_lower, gainMult_upper;
-    opus_int32   gainsID, gainsID_lower, gainsID_upper;
-    opus_int16   gainMult_Q8;
-    opus_int16   ec_prevLagIndex_copy;
-    opus_int     ec_prevSignalType_copy;
-    opus_int8    LastGainIndex_copy2;
-    opus_int32   pGains_Q16[ MAX_NB_SUBFR ];
-    opus_uint8   ec_buf_copy[ 1275 ];
-
-    /* This is totally unnecessary but many compilers (including gcc) are too dumb to realise it */
-    LastGainIndex_copy2 = nBits_lower = nBits_upper = gainMult_lower = gainMult_upper = 0;
-
-    psEnc->sCmn.indices.Seed = psEnc->sCmn.frameCounter++ & 3;
-
-    /**************************************************************/
-    /* Set up Input Pointers, and insert frame in input buffer    */
-    /**************************************************************/
-    /* pointers aligned with start of frame to encode */
-    x_frame         = psEnc->x_buf + psEnc->sCmn.ltp_mem_length;    /* start of frame to encode */
-    res_pitch_frame = res_pitch    + psEnc->sCmn.ltp_mem_length;    /* start of pitch LPC residual frame */
-
-    /***************************************/
-    /* Ensure smooth bandwidth transitions */
-    /***************************************/
-    silk_LP_variable_cutoff( &psEnc->sCmn.sLP, psEnc->sCmn.inputBuf + 1, psEnc->sCmn.frame_length );
-
-    /*******************************************/
-    /* Copy new frame to front of input buffer */
-    /*******************************************/
-    silk_short2float_array( x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, psEnc->sCmn.inputBuf + 1, psEnc->sCmn.frame_length );
-
-    /* Add tiny signal to avoid high CPU load from denormalized floating point numbers */
-    for( i = 0; i < 8; i++ ) {
-        x_frame[ LA_SHAPE_MS * psEnc->sCmn.fs_kHz + i * ( psEnc->sCmn.frame_length >> 3 ) ] += ( 1 - ( i & 2 ) ) * 1e-6f;
-    }
-
-    if( !psEnc->sCmn.prefillFlag ) {
-        /*****************************************/
-        /* Find pitch lags, initial LPC analysis */
-        /*****************************************/
-        silk_find_pitch_lags_FLP( psEnc, &sEncCtrl, res_pitch, x_frame );
-
-        /************************/
-        /* Noise shape analysis */
-        /************************/
-        silk_noise_shape_analysis_FLP( psEnc, &sEncCtrl, res_pitch_frame, x_frame );
-
-        /***************************************************/
-        /* Find linear prediction coefficients (LPC + LTP) */
-        /***************************************************/
-        silk_find_pred_coefs_FLP( psEnc, &sEncCtrl, res_pitch, x_frame, condCoding );
-
-        /****************************************/
-        /* Process gains                        */
-        /****************************************/
-        silk_process_gains_FLP( psEnc, &sEncCtrl, condCoding );
-
-        /*****************************************/
-        /* Prefiltering for noise shaper         */
-        /*****************************************/
-        silk_prefilter_FLP( psEnc, &sEncCtrl, xfw, x_frame );
-
-        /****************************************/
-        /* Low Bitrate Redundant Encoding       */
-        /****************************************/
-        silk_LBRR_encode_FLP( psEnc, &sEncCtrl, xfw, condCoding );
-
-        /* Loop over quantizer and entroy coding to control bitrate */
-        maxIter = 6;
-        gainMult_Q8 = SILK_FIX_CONST( 1, 8 );
-        found_lower = 0;
-        found_upper = 0;
-        gainsID = silk_gains_ID( psEnc->sCmn.indices.GainsIndices, psEnc->sCmn.nb_subfr );
-        gainsID_lower = -1;
-        gainsID_upper = -1;
-        /* Copy part of the input state */
-        silk_memcpy( &sRangeEnc_copy, psRangeEnc, sizeof( ec_enc ) );
-        silk_memcpy( &sNSQ_copy, &psEnc->sCmn.sNSQ, sizeof( silk_nsq_state ) );
-        seed_copy = psEnc->sCmn.indices.Seed;
-        ec_prevLagIndex_copy = psEnc->sCmn.ec_prevLagIndex;
-        ec_prevSignalType_copy = psEnc->sCmn.ec_prevSignalType;
-        for( iter = 0; ; iter++ ) {
-            if( gainsID == gainsID_lower ) {
-                nBits = nBits_lower;
-            } else if( gainsID == gainsID_upper ) {
-                nBits = nBits_upper;
-            } else {
-                /* Restore part of the input state */
-                if( iter > 0 ) {
-                    silk_memcpy( psRangeEnc, &sRangeEnc_copy, sizeof( ec_enc ) );
-                    silk_memcpy( &psEnc->sCmn.sNSQ, &sNSQ_copy, sizeof( silk_nsq_state ) );
-                    psEnc->sCmn.indices.Seed = seed_copy;
-                    psEnc->sCmn.ec_prevLagIndex = ec_prevLagIndex_copy;
-                    psEnc->sCmn.ec_prevSignalType = ec_prevSignalType_copy;
-                }
-
-                /*****************************************/
-                /* Noise shaping quantization            */
-                /*****************************************/
-                silk_NSQ_wrapper_FLP( psEnc, &sEncCtrl, &psEnc->sCmn.indices, &psEnc->sCmn.sNSQ, psEnc->sCmn.pulses, xfw );
-
-                /****************************************/
-                /* Encode Parameters                    */
-                /****************************************/
-                silk_encode_indices( &psEnc->sCmn, psRangeEnc, psEnc->sCmn.nFramesEncoded, 0, condCoding );
-
-                /****************************************/
-                /* Encode Excitation Signal             */
-                /****************************************/
-                silk_encode_pulses( psRangeEnc, psEnc->sCmn.indices.signalType, psEnc->sCmn.indices.quantOffsetType,
-                      psEnc->sCmn.pulses, psEnc->sCmn.frame_length );
-
-                nBits = ec_tell( psRangeEnc );
-
-                if( useCBR == 0 && iter == 0 && nBits <= maxBits ) {
-                    break;
-                }
-            }
-
-            if( iter == maxIter ) {
-                if( found_lower && ( gainsID == gainsID_lower || nBits > maxBits ) ) {
-                    /* Restore output state from earlier iteration that did meet the bitrate budget */
-                    silk_memcpy( psRangeEnc, &sRangeEnc_copy2, sizeof( ec_enc ) );
-                    silk_assert( sRangeEnc_copy2.offs <= 1275 );
-                    silk_memcpy( psRangeEnc->buf, ec_buf_copy, sRangeEnc_copy2.offs );
-                    silk_memcpy( &psEnc->sCmn.sNSQ, &sNSQ_copy2, sizeof( silk_nsq_state ) );
-                    psEnc->sShape.LastGainIndex = LastGainIndex_copy2;
-                }
-                break;
-            }
-
-            if( nBits > maxBits ) {
-                if( found_lower == 0 && iter >= 2 ) {
-                    /* Adjust the quantizer's rate/distortion tradeoff and discard previous "upper" results */
-                    sEncCtrl.Lambda *= 1.5f;
-                    found_upper = 0;
-                    gainsID_upper = -1;
-                } else {
-                    found_upper = 1;
-                    nBits_upper = nBits;
-                    gainMult_upper = gainMult_Q8;
-                    gainsID_upper = gainsID;
-                }
-            } else if( nBits < maxBits - 5 ) {
-                found_lower = 1;
-                nBits_lower = nBits;
-                gainMult_lower = gainMult_Q8;
-                if( gainsID != gainsID_lower ) {
-                    gainsID_lower = gainsID;
-                    /* Copy part of the output state */
-                    silk_memcpy( &sRangeEnc_copy2, psRangeEnc, sizeof( ec_enc ) );
-                    silk_assert( psRangeEnc->offs <= 1275 );
-                    silk_memcpy( ec_buf_copy, psRangeEnc->buf, psRangeEnc->offs );
-                    silk_memcpy( &sNSQ_copy2, &psEnc->sCmn.sNSQ, sizeof( silk_nsq_state ) );
-                    LastGainIndex_copy2 = psEnc->sShape.LastGainIndex;
-                }
-            } else {
-                /* Within 5 bits of budget: close enough */
-                break;
-            }
-
-            if( ( found_lower & found_upper ) == 0 ) {
-                /* Adjust gain according to high-rate rate/distortion curve */
-                opus_int32 gain_factor_Q16;
-                gain_factor_Q16 = silk_log2lin( silk_LSHIFT( nBits - maxBits, 7 ) / psEnc->sCmn.frame_length + SILK_FIX_CONST( 16, 7 ) );
-                gain_factor_Q16 = silk_min_32( gain_factor_Q16, SILK_FIX_CONST( 2, 16 ) );
-                if( nBits > maxBits ) {
-                    gain_factor_Q16 = silk_max_32( gain_factor_Q16, SILK_FIX_CONST( 1.3, 16 ) );
-                }
-                gainMult_Q8 = silk_SMULWB( gain_factor_Q16, gainMult_Q8 );
-            } else {
-                /* Adjust gain by interpolating */
-                gainMult_Q8 = gainMult_lower + ( ( gainMult_upper - gainMult_lower ) * ( maxBits - nBits_lower ) ) / ( nBits_upper - nBits_lower );
-                /* New gain multplier must be between 25% and 75% of old range (note that gainMult_upper < gainMult_lower) */
-                if( gainMult_Q8 > silk_ADD_RSHIFT32( gainMult_lower, gainMult_upper - gainMult_lower, 2 ) ) {
-                    gainMult_Q8 = silk_ADD_RSHIFT32( gainMult_lower, gainMult_upper - gainMult_lower, 2 );
-                } else
-                if( gainMult_Q8 < silk_SUB_RSHIFT32( gainMult_upper, gainMult_upper - gainMult_lower, 2 ) ) {
-                    gainMult_Q8 = silk_SUB_RSHIFT32( gainMult_upper, gainMult_upper - gainMult_lower, 2 );
-                }
-            }
-
-            for( i = 0; i < psEnc->sCmn.nb_subfr; i++ ) {
-                pGains_Q16[ i ] = silk_LSHIFT_SAT32( silk_SMULWB( sEncCtrl.GainsUnq_Q16[ i ], gainMult_Q8 ), 8 );
-            }
-
-            /* Quantize gains */
-            psEnc->sShape.LastGainIndex = sEncCtrl.lastGainIndexPrev;
-            silk_gains_quant( psEnc->sCmn.indices.GainsIndices, pGains_Q16,
-                  &psEnc->sShape.LastGainIndex, condCoding == CODE_CONDITIONALLY, psEnc->sCmn.nb_subfr );
-
-            /* Unique identifier of gains vector */
-            gainsID = silk_gains_ID( psEnc->sCmn.indices.GainsIndices, psEnc->sCmn.nb_subfr );
-
-            /* Overwrite unquantized gains with quantized gains and convert back to Q0 from Q16 */
-            for( i = 0; i < psEnc->sCmn.nb_subfr; i++ ) {
-                sEncCtrl.Gains[ i ] = pGains_Q16[ i ] / 65536.0f;
-            }
-        }
-    }
-
-    /* Update input buffer */
-    silk_memmove( psEnc->x_buf, &psEnc->x_buf[ psEnc->sCmn.frame_length ],
-        ( psEnc->sCmn.ltp_mem_length + LA_SHAPE_MS * psEnc->sCmn.fs_kHz ) * sizeof( silk_float ) );
-
-    /* Parameters needed for next frame */
-    psEnc->sCmn.prevLag        = sEncCtrl.pitchL[ psEnc->sCmn.nb_subfr - 1 ];
-    psEnc->sCmn.prevSignalType = psEnc->sCmn.indices.signalType;
-
-    /* Exit without entropy coding */
-    if( psEnc->sCmn.prefillFlag ) {
-        /* No payload */
-        *pnBytesOut = 0;
-        return ret;
-    }
-
-    /****************************************/
-    /* Finalize payload                     */
-    /****************************************/
-    psEnc->sCmn.first_frame_after_reset = 0;
-    /* Payload size */
-    *pnBytesOut = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 );
-
-    return ret;
-}
-
-/* Low-Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode excitation at lower bitrate  */
-static inline void silk_LBRR_encode_FLP(
-    silk_encoder_state_FLP          *psEnc,                             /* I/O  Encoder state FLP                           */
-    silk_encoder_control_FLP        *psEncCtrl,                         /* I/O  Encoder control FLP                         */
-    const silk_float                xfw[],                              /* I    Input signal                                */
-    opus_int                        condCoding                          /* I    The type of conditional coding used so far for this frame */
-)
-{
-    opus_int     k;
-    opus_int32   Gains_Q16[ MAX_NB_SUBFR ];
-    silk_float   TempGains[ MAX_NB_SUBFR ];
-    SideInfoIndices *psIndices_LBRR = &psEnc->sCmn.indices_LBRR[ psEnc->sCmn.nFramesEncoded ];
-    silk_nsq_state sNSQ_LBRR;
-
-    /*******************************************/
-    /* Control use of inband LBRR              */
-    /*******************************************/
-    if( psEnc->sCmn.LBRR_enabled && psEnc->sCmn.speech_activity_Q8 > SILK_FIX_CONST( LBRR_SPEECH_ACTIVITY_THRES, 8 ) ) {
-        psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesEncoded ] = 1;
-
-        /* Copy noise shaping quantizer state and quantization indices from regular encoding */
-        silk_memcpy( &sNSQ_LBRR, &psEnc->sCmn.sNSQ, sizeof( silk_nsq_state ) );
-        silk_memcpy( psIndices_LBRR, &psEnc->sCmn.indices, sizeof( SideInfoIndices ) );
-
-        /* Save original gains */
-        silk_memcpy( TempGains, psEncCtrl->Gains, psEnc->sCmn.nb_subfr * sizeof( silk_float ) );
-
-        if( psEnc->sCmn.nFramesEncoded == 0 || psEnc->sCmn.LBRR_flags[ psEnc->sCmn.nFramesEncoded - 1 ] == 0 ) {
-            /* First frame in packet or previous frame not LBRR coded */
-            psEnc->sCmn.LBRRprevLastGainIndex = psEnc->sShape.LastGainIndex;
-
-            /* Increase Gains to get target LBRR rate */
-            psIndices_LBRR->GainsIndices[ 0 ] += psEnc->sCmn.LBRR_GainIncreases;
-            psIndices_LBRR->GainsIndices[ 0 ] = silk_min_int( psIndices_LBRR->GainsIndices[ 0 ], N_LEVELS_QGAIN - 1 );
-        }
-
-        /* Decode to get gains in sync with decoder */
-        silk_gains_dequant( Gains_Q16, psIndices_LBRR->GainsIndices,
-            &psEnc->sCmn.LBRRprevLastGainIndex, condCoding == CODE_CONDITIONALLY, psEnc->sCmn.nb_subfr );
-
-        /* Overwrite unquantized gains with quantized gains and convert back to Q0 from Q16 */
-        for( k = 0; k <  psEnc->sCmn.nb_subfr; k++ ) {
-            psEncCtrl->Gains[ k ] = Gains_Q16[ k ] * ( 1.0f / 65536.0f );
-        }
-
-        /*****************************************/
-        /* Noise shaping quantization            */
-        /*****************************************/
-        silk_NSQ_wrapper_FLP( psEnc, psEncCtrl, psIndices_LBRR, &sNSQ_LBRR,
-            psEnc->sCmn.pulses_LBRR[ psEnc->sCmn.nFramesEncoded ], xfw );
-
-        /* Restore original gains */
-        silk_memcpy( psEncCtrl->Gains, TempGains, psEnc->sCmn.nb_subfr * sizeof( silk_float ) );
-    }
-}