diff options
author | Christian Schneppe <christian@pix-art.de> | 2016-09-07 21:36:30 +0200 |
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committer | Christian Schneppe <christian@pix-art.de> | 2016-09-07 21:36:30 +0200 |
commit | 685341457b310d2b22f4b3048ea50e35e4f6be26 (patch) | |
tree | 047fe68b8c81d62a0e00f5e76c1930a9bdfcc7cb /src/main/jni/opus/silk/fixed/encode_frame_FIX.c | |
parent | 2fa492c3eea4ae1050f4458b9e887b4f9780e2f5 (diff) |
optimized imports
Diffstat (limited to 'src/main/jni/opus/silk/fixed/encode_frame_FIX.c')
-rw-r--r-- | src/main/jni/opus/silk/fixed/encode_frame_FIX.c | 385 |
1 files changed, 0 insertions, 385 deletions
diff --git a/src/main/jni/opus/silk/fixed/encode_frame_FIX.c b/src/main/jni/opus/silk/fixed/encode_frame_FIX.c deleted file mode 100644 index b490986b9..000000000 --- a/src/main/jni/opus/silk/fixed/encode_frame_FIX.c +++ /dev/null @@ -1,385 +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_FIX.h" -#include "stack_alloc.h" -#include "tuning_parameters.h" - -/* Low Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode with lower bitrate */ -static OPUS_INLINE void silk_LBRR_encode_FIX( - silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk FIX encoder state */ - silk_encoder_control_FIX *psEncCtrl, /* I/O Pointer to Silk FIX encoder control struct */ - const opus_int32 xfw_Q3[], /* I Input signal */ - opus_int condCoding /* I The type of conditional coding used so far for this frame */ -); - -void silk_encode_do_VAD_FIX( - silk_encoder_state_FIX *psEnc /* I/O Pointer to Silk FIX encoder state */ -) -{ - /****************************/ - /* 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_FIX( - silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk FIX encoder state */ - opus_int32 *pnBytesOut, /* O Pointer to 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_FIX sEncCtrl; - opus_int i, iter, maxIter, found_upper, found_lower, ret = 0; - opus_int16 *x_frame; - 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; - SAVE_STACK; - - /* 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 */ - /*************************************************************/ - /* start of frame to encode */ - x_frame = psEnc->x_buf + psEnc->sCmn.ltp_mem_length; - - /***************************************/ - /* 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_memcpy( x_frame + LA_SHAPE_MS * psEnc->sCmn.fs_kHz, psEnc->sCmn.inputBuf + 1, psEnc->sCmn.frame_length * sizeof( opus_int16 ) ); - - if( !psEnc->sCmn.prefillFlag ) { - VARDECL( opus_int32, xfw_Q3 ); - VARDECL( opus_int16, res_pitch ); - VARDECL( opus_uint8, ec_buf_copy ); - opus_int16 *res_pitch_frame; - - ALLOC( res_pitch, - psEnc->sCmn.la_pitch + psEnc->sCmn.frame_length - + psEnc->sCmn.ltp_mem_length, opus_int16 ); - /* start of pitch LPC residual frame */ - res_pitch_frame = res_pitch + psEnc->sCmn.ltp_mem_length; - - /*****************************************/ - /* Find pitch lags, initial LPC analysis */ - /*****************************************/ - silk_find_pitch_lags_FIX( psEnc, &sEncCtrl, res_pitch, x_frame, psEnc->sCmn.arch ); - - /************************/ - /* Noise shape analysis */ - /************************/ - silk_noise_shape_analysis_FIX( psEnc, &sEncCtrl, res_pitch_frame, x_frame, psEnc->sCmn.arch ); - - /***************************************************/ - /* Find linear prediction coefficients (LPC + LTP) */ - /***************************************************/ - silk_find_pred_coefs_FIX( psEnc, &sEncCtrl, res_pitch, x_frame, condCoding ); - - /****************************************/ - /* Process gains */ - /****************************************/ - silk_process_gains_FIX( psEnc, &sEncCtrl, condCoding ); - - /*****************************************/ - /* Prefiltering for noise shaper */ - /*****************************************/ - ALLOC( xfw_Q3, psEnc->sCmn.frame_length, opus_int32 ); - silk_prefilter_FIX( psEnc, &sEncCtrl, xfw_Q3, x_frame ); - - /****************************************/ - /* Low Bitrate Redundant Encoding */ - /****************************************/ - silk_LBRR_encode_FIX( psEnc, &sEncCtrl, xfw_Q3, condCoding ); - - /* Loop over quantizer and entropy 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; - ALLOC( ec_buf_copy, 1275, opus_uint8 ); - 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 */ - /*****************************************/ - if( psEnc->sCmn.nStatesDelayedDecision > 1 || psEnc->sCmn.warping_Q16 > 0 ) { - silk_NSQ_del_dec( &psEnc->sCmn, &psEnc->sCmn.sNSQ, &psEnc->sCmn.indices, xfw_Q3, psEnc->sCmn.pulses, - sEncCtrl.PredCoef_Q12[ 0 ], sEncCtrl.LTPCoef_Q14, sEncCtrl.AR2_Q13, sEncCtrl.HarmShapeGain_Q14, - sEncCtrl.Tilt_Q14, sEncCtrl.LF_shp_Q14, sEncCtrl.Gains_Q16, sEncCtrl.pitchL, sEncCtrl.Lambda_Q10, sEncCtrl.LTP_scale_Q14 ); - } else { - silk_NSQ( &psEnc->sCmn, &psEnc->sCmn.sNSQ, &psEnc->sCmn.indices, xfw_Q3, psEnc->sCmn.pulses, - sEncCtrl.PredCoef_Q12[ 0 ], sEncCtrl.LTPCoef_Q14, sEncCtrl.AR2_Q13, sEncCtrl.HarmShapeGain_Q14, - sEncCtrl.Tilt_Q14, sEncCtrl.LF_shp_Q14, sEncCtrl.Gains_Q16, sEncCtrl.pitchL, sEncCtrl.Lambda_Q10, sEncCtrl.LTP_scale_Q14 ); - } - - /****************************************/ - /* 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_Q10 = silk_ADD_RSHIFT32( sEncCtrl.Lambda_Q10, sEncCtrl.Lambda_Q10, 1 ); - 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 + silk_DIV32_16( silk_MUL( 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++ ) { - sEncCtrl.Gains_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, sEncCtrl.Gains_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 ); - } - } - - /* 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( opus_int16 ) ); - - /* Exit without entropy coding */ - if( psEnc->sCmn.prefillFlag ) { - /* No payload */ - *pnBytesOut = 0; - RESTORE_STACK; - return ret; - } - - /* Parameters needed for next frame */ - psEnc->sCmn.prevLag = sEncCtrl.pitchL[ psEnc->sCmn.nb_subfr - 1 ]; - psEnc->sCmn.prevSignalType = psEnc->sCmn.indices.signalType; - - /****************************************/ - /* Finalize payload */ - /****************************************/ - psEnc->sCmn.first_frame_after_reset = 0; - /* Payload size */ - *pnBytesOut = silk_RSHIFT( ec_tell( psRangeEnc ) + 7, 3 ); - - RESTORE_STACK; - return ret; -} - -/* Low-Bitrate Redundancy (LBRR) encoding. Reuse all parameters but encode excitation at lower bitrate */ -static OPUS_INLINE void silk_LBRR_encode_FIX( - silk_encoder_state_FIX *psEnc, /* I/O Pointer to Silk FIX encoder state */ - silk_encoder_control_FIX *psEncCtrl, /* I/O Pointer to Silk FIX encoder control struct */ - const opus_int32 xfw_Q3[], /* I Input signal */ - opus_int condCoding /* I The type of conditional coding used so far for this frame */ -) -{ - opus_int32 TempGains_Q16[ 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_Q16, psEncCtrl->Gains_Q16, psEnc->sCmn.nb_subfr * sizeof( opus_int32 ) ); - - 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 ] = 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 */ - /* Overwrite unquantized gains with quantized gains */ - silk_gains_dequant( psEncCtrl->Gains_Q16, psIndices_LBRR->GainsIndices, - &psEnc->sCmn.LBRRprevLastGainIndex, condCoding == CODE_CONDITIONALLY, psEnc->sCmn.nb_subfr ); - - /*****************************************/ - /* Noise shaping quantization */ - /*****************************************/ - if( psEnc->sCmn.nStatesDelayedDecision > 1 || psEnc->sCmn.warping_Q16 > 0 ) { - silk_NSQ_del_dec( &psEnc->sCmn, &sNSQ_LBRR, psIndices_LBRR, xfw_Q3, - psEnc->sCmn.pulses_LBRR[ psEnc->sCmn.nFramesEncoded ], psEncCtrl->PredCoef_Q12[ 0 ], psEncCtrl->LTPCoef_Q14, - psEncCtrl->AR2_Q13, psEncCtrl->HarmShapeGain_Q14, psEncCtrl->Tilt_Q14, psEncCtrl->LF_shp_Q14, - psEncCtrl->Gains_Q16, psEncCtrl->pitchL, psEncCtrl->Lambda_Q10, psEncCtrl->LTP_scale_Q14 ); - } else { - silk_NSQ( &psEnc->sCmn, &sNSQ_LBRR, psIndices_LBRR, xfw_Q3, - psEnc->sCmn.pulses_LBRR[ psEnc->sCmn.nFramesEncoded ], psEncCtrl->PredCoef_Q12[ 0 ], psEncCtrl->LTPCoef_Q14, - psEncCtrl->AR2_Q13, psEncCtrl->HarmShapeGain_Q14, psEncCtrl->Tilt_Q14, psEncCtrl->LF_shp_Q14, - psEncCtrl->Gains_Q16, psEncCtrl->pitchL, psEncCtrl->Lambda_Q10, psEncCtrl->LTP_scale_Q14 ); - } - - /* Restore original gains */ - silk_memcpy( psEncCtrl->Gains_Q16, TempGains_Q16, psEnc->sCmn.nb_subfr * sizeof( opus_int32 ) ); - } -} |