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| 1 /*********************************************************************** |
| 2 Copyright (c) 2006-2011, Skype Limited. All rights reserved. |
| 3 Redistribution and use in source and binary forms, with or without |
| 4 modification, are permitted provided that the following conditions |
| 5 are met: |
| 6 - Redistributions of source code must retain the above copyright notice, |
| 7 this list of conditions and the following disclaimer. |
| 8 - Redistributions in binary form must reproduce the above copyright |
| 9 notice, this list of conditions and the following disclaimer in the |
| 10 documentation and/or other materials provided with the distribution. |
| 11 - Neither the name of Internet Society, IETF or IETF Trust, nor the |
| 12 names of specific contributors, may be used to endorse or promote |
| 13 products derived from this software without specific prior written |
| 14 permission. |
| 15 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS” |
| 16 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| 18 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
| 19 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| 20 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| 21 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| 22 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| 23 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| 24 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| 25 POSSIBILITY OF SUCH DAMAGE. |
| 26 ***********************************************************************/ |
| 27 |
| 28 #ifndef SILK_STRUCTS_FIX_H |
| 29 #define SILK_STRUCTS_FIX_H |
| 30 |
| 31 #include "typedef.h" |
| 32 #include "main.h" |
| 33 #include "structs.h" |
| 34 |
| 35 #ifdef __cplusplus |
| 36 extern "C" |
| 37 { |
| 38 #endif |
| 39 |
| 40 /********************************/ |
| 41 /* Noise shaping analysis state */ |
| 42 /********************************/ |
| 43 typedef struct { |
| 44 opus_int8 LastGainIndex; |
| 45 opus_int32 HarmBoost_smth_Q16; |
| 46 opus_int32 HarmShapeGain_smth_Q16; |
| 47 opus_int32 Tilt_smth_Q16; |
| 48 } silk_shape_state_FIX; |
| 49 |
| 50 /********************************/ |
| 51 /* Prefilter state */ |
| 52 /********************************/ |
| 53 typedef struct { |
| 54 opus_int16 sLTP_shp[ LTP_BUF_LENGTH ]; |
| 55 opus_int32 sAR_shp[ MAX_SHAPE_LPC_ORDER + 1 ]; |
| 56 opus_int sLTP_shp_buf_idx; |
| 57 opus_int32 sLF_AR_shp_Q12; |
| 58 opus_int32 sLF_MA_shp_Q12; |
| 59 opus_int32 sHarmHP_Q2; |
| 60 opus_int32 rand_seed; |
| 61 opus_int lagPrev; |
| 62 } silk_prefilter_state_FIX; |
| 63 |
| 64 /********************************/ |
| 65 /* Encoder state FIX */ |
| 66 /********************************/ |
| 67 typedef struct { |
| 68 silk_encoder_state sCmn; /* Commo
n struct, shared with floating-point code */ |
| 69 silk_shape_state_FIX sShape; /* Shape
state */ |
| 70 silk_prefilter_state_FIX sPrefilt; /* Prefi
lter State */ |
| 71 |
| 72 /* Buffer for find pitch and noise shape analysis */ |
| 73 silk_DWORD_ALIGN opus_int16 x_buf[ 2 * MAX_FRAME_LENGTH + LA_SHAPE_MAX ];/*
Buffer for find pitch and noise shape analysis */ |
| 74 opus_int LTPCorr_Q15; /* Norma
lized correlation from pitch lag estimator */ |
| 75 } silk_encoder_state_FIX; |
| 76 |
| 77 /************************/ |
| 78 /* Encoder control FIX */ |
| 79 /************************/ |
| 80 typedef struct { |
| 81 /* Prediction and coding parameters */ |
| 82 opus_int32 Gains_Q16[ MAX_NB_SUBFR ]; |
| 83 silk_DWORD_ALIGN opus_int16 PredCoef_Q12[ 2 ][ MAX_LPC_ORDER ]; |
| 84 opus_int16 LTPCoef_Q14[ LTP_ORDER * MAX_NB_SUBFR ]; |
| 85 opus_int LTP_scale_Q14; |
| 86 opus_int pitchL[ MAX_NB_SUBFR ]; |
| 87 |
| 88 /* Noise shaping parameters */ |
| 89 /* Testing */ |
| 90 silk_DWORD_ALIGN opus_int16 AR1_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ]; |
| 91 silk_DWORD_ALIGN opus_int16 AR2_Q13[ MAX_NB_SUBFR * MAX_SHAPE_LPC_ORDER ]; |
| 92 opus_int32 LF_shp_Q14[ MAX_NB_SUBFR ]; /* Packs
two int16 coefficients per int32 value */ |
| 93 opus_int GainsPre_Q14[ MAX_NB_SUBFR ]; |
| 94 opus_int HarmBoost_Q14[ MAX_NB_SUBFR ]; |
| 95 opus_int Tilt_Q14[ MAX_NB_SUBFR ]; |
| 96 opus_int HarmShapeGain_Q14[ MAX_NB_SUBFR ]; |
| 97 opus_int Lambda_Q10; |
| 98 opus_int input_quality_Q14; |
| 99 opus_int coding_quality_Q14; |
| 100 |
| 101 /* measures */ |
| 102 opus_int sparseness_Q8; |
| 103 opus_int32 predGain_Q16; |
| 104 opus_int LTPredCodGain_Q7; |
| 105 opus_int32 ResNrg[ MAX_NB_SUBFR ]; /* Resid
ual energy per subframe */ |
| 106 opus_int ResNrgQ[ MAX_NB_SUBFR ]; /* Q dom
ain for the residual energy > 0 */ |
| 107 |
| 108 /* Parameters for CBR mode */ |
| 109 opus_int32 GainsUnq_Q16[ MAX_NB_SUBFR ]; |
| 110 opus_int8 lastGainIndexPrev; |
| 111 } silk_encoder_control_FIX; |
| 112 |
| 113 /************************/ |
| 114 /* Encoder Super Struct */ |
| 115 /************************/ |
| 116 typedef struct { |
| 117 silk_encoder_state_FIX state_Fxx[ ENCODER_NUM_CHANNELS ]; |
| 118 stereo_enc_state sStereo; |
| 119 opus_int32 nBitsExceeded; |
| 120 opus_int nChannelsAPI; |
| 121 opus_int nChannelsInternal; |
| 122 opus_int nPrevChannelsInternal; |
| 123 opus_int timeSinceSwitchAllowed_ms; |
| 124 opus_int allowBandwidthSwitch; |
| 125 opus_int prev_decode_only_middle; |
| 126 } silk_encoder; |
| 127 |
| 128 |
| 129 #ifdef __cplusplus |
| 130 } |
| 131 #endif |
| 132 |
| 133 #endif |
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Chromium Code Reviews
Issue 11196031:
Add copy of opus library in deps/third_party. (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/deps/third_party/