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Diffstat (limited to 'src/opus-1.1/silk/define.h')
| -rw-r--r-- | src/opus-1.1/silk/define.h | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/src/opus-1.1/silk/define.h b/src/opus-1.1/silk/define.h deleted file mode 100644 index c47aca9f..00000000 --- a/src/opus-1.1/silk/define.h +++ /dev/null @@ -1,235 +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. -***********************************************************************/ - -#ifndef SILK_DEFINE_H -#define SILK_DEFINE_H - -#include "errors.h" -#include "typedef.h" - -#ifdef __cplusplus -extern "C" -{ -#endif - -/* Max number of encoder channels (1/2) */ -#define ENCODER_NUM_CHANNELS 2 -/* Number of decoder channels (1/2) */ -#define DECODER_NUM_CHANNELS 2 - -#define MAX_FRAMES_PER_PACKET 3 - -/* Limits on bitrate */ -#define MIN_TARGET_RATE_BPS 5000 -#define MAX_TARGET_RATE_BPS 80000 -#define TARGET_RATE_TAB_SZ 8 - -/* LBRR thresholds */ -#define LBRR_NB_MIN_RATE_BPS 12000 -#define LBRR_MB_MIN_RATE_BPS 14000 -#define LBRR_WB_MIN_RATE_BPS 16000 - -/* DTX settings */ -#define NB_SPEECH_FRAMES_BEFORE_DTX 10 /* eq 200 ms */ -#define MAX_CONSECUTIVE_DTX 20 /* eq 400 ms */ - -/* Maximum sampling frequency */ -#define MAX_FS_KHZ 16 -#define MAX_API_FS_KHZ 48 - -/* Signal types */ -#define TYPE_NO_VOICE_ACTIVITY 0 -#define TYPE_UNVOICED 1 -#define TYPE_VOICED 2 - -/* Conditional coding types */ -#define CODE_INDEPENDENTLY 0 -#define CODE_INDEPENDENTLY_NO_LTP_SCALING 1 -#define CODE_CONDITIONALLY 2 - -/* Settings for stereo processing */ -#define STEREO_QUANT_TAB_SIZE 16 -#define STEREO_QUANT_SUB_STEPS 5 -#define STEREO_INTERP_LEN_MS 8 /* must be even */ -#define STEREO_RATIO_SMOOTH_COEF 0.01 /* smoothing coef for signal norms and stereo width */ - -/* Range of pitch lag estimates */ -#define PITCH_EST_MIN_LAG_MS 2 /* 2 ms -> 500 Hz */ -#define PITCH_EST_MAX_LAG_MS 18 /* 18 ms -> 56 Hz */ - -/* Maximum number of subframes */ -#define MAX_NB_SUBFR 4 - -/* Number of samples per frame */ -#define LTP_MEM_LENGTH_MS 20 -#define SUB_FRAME_LENGTH_MS 5 -#define MAX_SUB_FRAME_LENGTH ( SUB_FRAME_LENGTH_MS * MAX_FS_KHZ ) -#define MAX_FRAME_LENGTH_MS ( SUB_FRAME_LENGTH_MS * MAX_NB_SUBFR ) -#define MAX_FRAME_LENGTH ( MAX_FRAME_LENGTH_MS * MAX_FS_KHZ ) - -/* Milliseconds of lookahead for pitch analysis */ -#define LA_PITCH_MS 2 -#define LA_PITCH_MAX ( LA_PITCH_MS * MAX_FS_KHZ ) - -/* Order of LPC used in find pitch */ -#define MAX_FIND_PITCH_LPC_ORDER 16 - -/* Length of LPC window used in find pitch */ -#define FIND_PITCH_LPC_WIN_MS ( 20 + (LA_PITCH_MS << 1) ) -#define FIND_PITCH_LPC_WIN_MS_2_SF ( 10 + (LA_PITCH_MS << 1) ) -#define FIND_PITCH_LPC_WIN_MAX ( FIND_PITCH_LPC_WIN_MS * MAX_FS_KHZ ) - -/* Milliseconds of lookahead for noise shape analysis */ -#define LA_SHAPE_MS 5 -#define LA_SHAPE_MAX ( LA_SHAPE_MS * MAX_FS_KHZ ) - -/* Maximum length of LPC window used in noise shape analysis */ -#define SHAPE_LPC_WIN_MAX ( 15 * MAX_FS_KHZ ) - -/* dB level of lowest gain quantization level */ -#define MIN_QGAIN_DB 2 -/* dB level of highest gain quantization level */ -#define MAX_QGAIN_DB 88 -/* Number of gain quantization levels */ -#define N_LEVELS_QGAIN 64 -/* Max increase in gain quantization index */ -#define MAX_DELTA_GAIN_QUANT 36 -/* Max decrease in gain quantization index */ -#define MIN_DELTA_GAIN_QUANT -4 - -/* Quantization offsets (multiples of 4) */ -#define OFFSET_VL_Q10 32 -#define OFFSET_VH_Q10 100 -#define OFFSET_UVL_Q10 100 -#define OFFSET_UVH_Q10 240 - -#define QUANT_LEVEL_ADJUST_Q10 80 - -/* Maximum numbers of iterations used to stabilize an LPC vector */ -#define MAX_LPC_STABILIZE_ITERATIONS 16 -#define MAX_PREDICTION_POWER_GAIN 1e4f -#define MAX_PREDICTION_POWER_GAIN_AFTER_RESET 1e2f - -#define MAX_LPC_ORDER 16 -#define MIN_LPC_ORDER 10 - -/* Find Pred Coef defines */ -#define LTP_ORDER 5 - -/* LTP quantization settings */ -#define NB_LTP_CBKS 3 - -/* Flag to use harmonic noise shaping */ -#define USE_HARM_SHAPING 1 - -/* Max LPC order of noise shaping filters */ -#define MAX_SHAPE_LPC_ORDER 16 - -#define HARM_SHAPE_FIR_TAPS 3 - -/* Maximum number of delayed decision states */ -#define MAX_DEL_DEC_STATES 4 - -#define LTP_BUF_LENGTH 512 -#define LTP_MASK ( LTP_BUF_LENGTH - 1 ) - -#define DECISION_DELAY 32 -#define DECISION_DELAY_MASK ( DECISION_DELAY - 1 ) - -/* Number of subframes for excitation entropy coding */ -#define SHELL_CODEC_FRAME_LENGTH 16 -#define LOG2_SHELL_CODEC_FRAME_LENGTH 4 -#define MAX_NB_SHELL_BLOCKS ( MAX_FRAME_LENGTH / SHELL_CODEC_FRAME_LENGTH ) - -/* Number of rate levels, for entropy coding of excitation */ -#define N_RATE_LEVELS 10 - -/* Maximum sum of pulses per shell coding frame */ -#define MAX_PULSES 16 - -#define MAX_MATRIX_SIZE MAX_LPC_ORDER /* Max of LPC Order and LTP order */ - -#if( MAX_LPC_ORDER > DECISION_DELAY ) -# define NSQ_LPC_BUF_LENGTH MAX_LPC_ORDER -#else -# define NSQ_LPC_BUF_LENGTH DECISION_DELAY -#endif - -/***************************/ -/* Voice activity detector */ -/***************************/ -#define VAD_N_BANDS 4 - -#define VAD_INTERNAL_SUBFRAMES_LOG2 2 -#define VAD_INTERNAL_SUBFRAMES ( 1 << VAD_INTERNAL_SUBFRAMES_LOG2 ) - -#define VAD_NOISE_LEVEL_SMOOTH_COEF_Q16 1024 /* Must be < 4096 */ -#define VAD_NOISE_LEVELS_BIAS 50 - -/* Sigmoid settings */ -#define VAD_NEGATIVE_OFFSET_Q5 128 /* sigmoid is 0 at -128 */ -#define VAD_SNR_FACTOR_Q16 45000 - -/* smoothing for SNR measurement */ -#define VAD_SNR_SMOOTH_COEF_Q18 4096 - -/* Size of the piecewise linear cosine approximation table for the LSFs */ -#define LSF_COS_TAB_SZ_FIX 128 - -/******************/ -/* NLSF quantizer */ -/******************/ -#define NLSF_W_Q 2 -#define NLSF_VQ_MAX_VECTORS 32 -#define NLSF_VQ_MAX_SURVIVORS 32 -#define NLSF_QUANT_MAX_AMPLITUDE 4 -#define NLSF_QUANT_MAX_AMPLITUDE_EXT 10 -#define NLSF_QUANT_LEVEL_ADJ 0.1 -#define NLSF_QUANT_DEL_DEC_STATES_LOG2 2 -#define NLSF_QUANT_DEL_DEC_STATES ( 1 << NLSF_QUANT_DEL_DEC_STATES_LOG2 ) - -/* Transition filtering for mode switching */ -#define TRANSITION_TIME_MS 5120 /* 5120 = 64 * FRAME_LENGTH_MS * ( TRANSITION_INT_NUM - 1 ) = 64*(20*4)*/ -#define TRANSITION_NB 3 /* Hardcoded in tables */ -#define TRANSITION_NA 2 /* Hardcoded in tables */ -#define TRANSITION_INT_NUM 5 /* Hardcoded in tables */ -#define TRANSITION_FRAMES ( TRANSITION_TIME_MS / MAX_FRAME_LENGTH_MS ) -#define TRANSITION_INT_STEPS ( TRANSITION_FRAMES / ( TRANSITION_INT_NUM - 1 ) ) - -/* BWE factors to apply after packet loss */ -#define BWE_AFTER_LOSS_Q16 63570 - -/* Defines for CN generation */ -#define CNG_BUF_MASK_MAX 255 /* 2^floor(log2(MAX_FRAME_LENGTH))-1 */ -#define CNG_GAIN_SMTH_Q16 4634 /* 0.25^(1/4) */ -#define CNG_NLSF_SMTH_Q16 16348 /* 0.25 */ - -#ifdef __cplusplus -} -#endif - -#endif |